Half-rod cutting equipment

Abstract

The half-rod cutting equipment comprises a cutting machine base with a cutting machining platform, the cutting machining platform is provided with one or more cutting station sets, and each cutting station set comprises a first cutting station and a second cutting station; the first cutting station is provided with a first silicon rod cutting device for carrying out first cutting operation on a silicon rod with a circular section, so that the silicon rod forms two parallel first side sections; the second cutting station is provided with a second silicon rod cutting device for performing second cutting operation on the silicon rod with two first side tangent planes, so that the silicon rod passes through two parallel second side tangent planes and at least one cutting plane positioned between the two second side tangent planes to obtain at least two half rods with rectangular sections; the second side tangent plane is perpendicular to the first side tangent plane, and the slitting plane is parallel to the second side tangent plane. The equipment can be integrated with subsequent operation equipment, so that the production equipment is high in overall integration level and simple in structure, the production efficiency is improved, and the cost is saved.

Description

[0001] The present application is a divisional application in accordance with the provisions of Article 48 of the Implementing Regulations of the Patent Law, the parent application of the present application is a Chinese Utility Model application with the application number CN202421486236.6, the application date of June 26, 2024, the priority date of July 14, 2023, the priority number of 202310861990.7, the invention name of Small-sized rectangular bar cutting-grinding integrated device, and the applicant of Shanghai Rijin Machine Tool Co., Ltd. The entire contents of the parent application are incorporated herein by reference in their entirety. TECHNICAL FIELD

[0002] The present application relates to the technical field of silicon workpiece processing, in particular to a half-bar cutting device. BACKGROUND

[0003] In related silicon rod processing technologies, several processes such as square cutting, face grinding, rounding / chamfering, etc. are involved. Generally, the existing silicon rods are mostly cylindrical in structure, and the silicon rod is cut into a square shape by a silicon rod square cutting device, so that the cross section of the silicon rod after square cutting is a rectangle (including a square), and the whole square-cut silicon rod is a rectangular prism (which can also include a cubic shape). The rectangle includes a rectangle with orthogonal adjacent sides or an angle within a predetermined angle, a rectangle with rounded corners between adjacent sides, a rectangle with connecting short sides between adjacent sides, etc.

[0004] Taking a single crystal silicon rod as an example, in some related technologies, the forming process of the single crystal silicon rod can include: first cutting the original long silicon rod into multiple short silicon rods using a silicon rod cutting machine; and then cutting the short silicon rod into a square shape using a silicon rod square cutting machine to form a single crystal silicon rod with a rectangular cross section. The specific implementation of cutting the original long silicon rod into multiple short silicon rods using a silicon rod cutting machine can be referred to, for example, CN105856445A, CN105946127A, and CN105196433A, and the specific implementation of cutting the short silicon rod into a square shape using a silicon rod square cutting machine to form a single crystal silicon rod with a rectangular cross section can be referred to CN105818285A. However, the forming process of the single crystal silicon rod is not limited to the above-mentioned technologies. In alternative examples, the forming process of the single crystal silicon rod can also include: first cutting the original long silicon rod into a square shape using a full silicon rod square cutting machine to form a long single crystal silicon rod with a rectangular cross section; and then cutting the long single crystal silicon rod after square cutting into a short single crystal silicon rod using a silicon rod cutting machine. The specific implementation of cutting the original long silicon rod into a square shape using a full silicon rod square cutting machine to form a long single crystal silicon rod with a rectangular cross section can be referred to, for example, CN106003443A.

[0005] After the cylindrical single crystal silicon rod is cut by the squaring device to form a silicon rod with a rectangular cross section, the silicon rod with a rectangular cross section can be subjected to surface grinding, rounding, chamfering, and other operations by a grinding device. The specific implementation of the grinding device in performing surface grinding, rounding, chamfering, and other operations on the silicon rod with a rectangular cross section can be referred to, for example, CN105835247A and other patent publications.

[0006] With the development of battery technology, the demand for small silicon wafers is increasing, and the demand for thin wafers is also relatively large. The thinner the silicon wafer, the more difficult it is to cut, and the more difficult it is to ensure the cutting quality. For example, in the current technology, slicing is performed on large square silicon rods. If the thickness of the silicon wafer to be cut is thin, the difficulty of silicon wafer slicing is undoubtedly increased. During the slicing process, the cross section of the silicon wafer is more prone to damage and defects. In order to minimize the damage and defects of the silicon wafer, the slicing speed needs to be controlled, which reduces the slicing efficiency. Therefore, the industry has also proposed certain improvements to the current technology. For example, the existing large square silicon rods are first cut, such as cutting the large square silicon rod in half to form two smaller square silicon rods, and then performing subsequent processing such as grinding and slicing on the smaller square silicon rods. In the existing technology, there is no special device for cutting the silicon rod that has been squared, and the existing half-rod cutting device has poor expandability, which is not conducive to integration with the grinding device and causes low production efficiency and other problems. SUMMARY

[0007] In view of the above-mentioned shortcomings of the related art, the purpose of the present application is to provide a half-rod cutting device to solve the problems of poor expandability of the existing related art, which is not conducive to integration with the grinding process and causes low production efficiency and other problems.

[0008] To achieve the above-mentioned purposes and other related purposes, the first aspect of the present application provides a half-rod cutting device, comprising: a cutting machine base having a cutting processing platform; the cutting processing platform is provided with one or more cutting station groups, each cutting station group comprising a first cutting station and a second cutting station; the first cutting station is provided with a first silicon rod cutting device, which is used for performing a first cutting operation on a silicon rod with a circular cross section, so that the silicon rod forms two parallel first side surfaces; the second cutting station is provided with a second silicon rod cutting device, which is used for performing a second cutting operation on the silicon rod with two first side surfaces, so that the silicon rod forms at least two half-rods with a rectangular cross section through forming two parallel second side surfaces and at least one split surface between the two second side surfaces, the second side surface is perpendicular to the first side surface, and the split surface is parallel to the second side surface.

[0009] In summary, the half-rod cutting equipment provided in this application performs squaring and halving operations on silicon rods with circular cross-sections, resulting in at least two half-rods with rectangular cross-sections. This allows for subsequent grinding and chamfering operations on the half-rods using grinding equipment. The half-rod cutting equipment of this application has good scalability and can be integrated with subsequent processing equipment, resulting in high overall integration of the production equipment, simple structure, improved production efficiency and cost savings, and improved product processing quality. Attached Figure Description

[0010] The specific features involved in this application are shown in the appended claims. A better understanding of the features and advantages of the invention can be achieved by referring to the exemplary embodiments and accompanying drawings described in detail below. A brief description of the drawings is as follows:

[0011] Figure 1 The diagram shown is a structural schematic of an integrated cutting and grinding device for small-sized rectangular bars according to one embodiment of this application.

[0012] Figure 2 and Figure 3 Displayed as Figure 1 A schematic diagram of the structure of a half-bar cutting machine.

[0013] Figure 4 The diagram shown is a structural schematic of a half-bar cutting device in another embodiment.

[0014] Figure 5 The diagram shown is a structural schematic of the first wire cutting unit in a first silicon rod cutting apparatus in one embodiment.

[0015] Figure 6 The diagram shows a structural schematic of a first silicon rod transfer device and a first edge-skin anti-chipping device in one embodiment.

[0016] Figure 7 Displayed as Figure 6 A schematic diagram of the edge clamp of the first edge anti-splitting device in one embodiment.

[0017] Figures 8-10 Displayed as Figure 6 A schematic diagram of the state of the edge-skin anti-splitting device holding the silicon rod in one embodiment.

[0018] Figure 11 and Figure 12 The diagram shows a structural schematic of a first silicon rod cutting device, a first edge-breaking prevention device, and an edge-feeding conveying mechanism in one embodiment.

[0019] Figure 13 The diagram shown is a structural schematic of a second silicon rod cutting device in one embodiment.

[0020] Figure 14 Displayed asFigure 1 Structure diagram of the half-rod grinding device.

[0021] Figure 15 Structure diagram of the first half-rod clamping device in an embodiment.

[0022] Figure 16 For Figure 14 Structure diagram of the edge skin bearing device and the chamfering device at the chamfering area in an embodiment. DETAILED DESCRIPTION

[0023] The advantages and effects of the present application can be easily understood by those skilled in the art from the disclosure of the present application. In view of the various shortcomings of the prior art, the applicant has previously proposed a square silicon rod cutting and grinding integrated machine, which integrates a cutting device and a grinding device. The cutting device can perform horizontal cutting on a horizontally placed original square silicon rod to form two smaller square silicon rods (half rods) above and below. The grinding device can perform grinding on the two square silicon rods (half rods) formed after horizontal cutting, thereby completing the integrated operation of the half-cutting and grinding of the original square silicon rod, improving production efficiency and product processing quality. The specific implementation of the above grinding device for horizontal cutting and grinding of large square silicon rods can be referred to, for example, CN115946248A, CN115871115A, and other patent publications. However, in the above technical solution, the cutting device is used to perform horizontal cutting on the original square silicon rod that has completed the square cutting operation to form two square silicon rods (half rods). The square cutting of the original silicon rod with a circular cross-section to form a square silicon rod with a rectangular cross-section needs to be completed in other square silicon rod cutting equipment.

[0024] Therefore, the present application proposes a small-size rectangular rod cutting and grinding integrated device and a half-rod cutting and grinding method. The small-size rectangular rod cutting and grinding integrated device includes a half-rod cutting device and a half-rod grinding device that are connected to each other. The half-rod cutting device performs square cutting and half-cutting on a silicon rod with a circular cross-section to form at least two half-rods with a rectangular cross-section. The half-rod grinding device performs surface grinding and chamfering on the half-rods, thereby completing the integrated operation of square cutting, half-cutting, surface grinding, and chamfering of the original silicon rod with a circular cross-section. The device has high integration, simple structure, improves production efficiency and saves costs, and improves product processing quality.

[0025] In the embodiments disclosed in the present application, in order to clearly define the direction and the way of operation between different structures, a three-dimensional space defined by a first direction, a second direction and a third direction is defined, and the first direction, the second direction and the third direction are all straight directions and perpendicular to each other. The depth extension direction of the small-size rectangular rod cutting and grinding integrated equipment, i.e. the length direction of the silicon rod placed thereon, is defined as the first direction (i.e. the front-rear direction or the transfer direction), the width extension direction of the small-size rectangular rod cutting and grinding integrated equipment, i.e. the left-right direction, is defined as the second direction (i.e. the left-right direction or the transposition direction), and the vertical direction, i.e. the vertical direction, the perpendicular direction, the up-down direction or the lifting direction, is defined as the third direction.

[0026] In the present application, the small-size rectangular rod cutting and grinding integrated equipment can also be referred to as a half-rod cutting and grinding integrated machine. The small-size rectangular rod is the operation of square cutting and halving cutting on the silicon rod with a circular cross section, so that the silicon rod forms two half-rods with a rectangular cross section. Therefore, the "half-rod" can also be referred to by other terms, such as "small-size rectangular rod", "split rod", "sub-rod", "small silicon rod", "small square rod", etc.

[0027] The present application discloses a half-rod cutting and grinding method, comprising the following steps: performing square cutting and halving cutting on a silicon rod with a circular cross section, so that the silicon rod forms at least two half-rods with a rectangular cross section; and performing grinding and chamfering operations on the half-rods.

[0028] The step of performing square cutting and halving cutting on the silicon rod with a circular cross section, so that the silicon rod forms at least two half-rods with a rectangular cross section, comprises: performing a first cutting operation on the silicon rod with a circular cross section along the length direction of the silicon rod, so that the silicon rod forms two parallel first side surfaces; and performing a second cutting operation on the silicon rod with the two first side surfaces along the length direction of the silicon rod, so that the silicon rod forms at least two half-rods with a rectangular cross section by forming two parallel second side surfaces and at least one split surface between the two second side surfaces, the second side surfaces being perpendicular to the first side surfaces, and the split surface being parallel to the second side surface.

[0029] The step of performing grinding and chamfering operations on the half-rods comprises: performing grinding on the two first side surfaces of the half-rod; performing grinding on the two second side surfaces of the half-rod; and performing chamfering on the four corner portions of the half-rod.

[0030] The present application further discloses a small-size rectangular rod cutting and grinding integrated equipment, which can complete the square cutting, halving cutting, grinding and chamfering of the original silicon rod with a circular cross section. The small-size rectangular rod cutting and grinding integrated equipment will be described in detail below.

[0031] Please refer to Figure 1 , which shows the structural schematic diagram of the small-size rectangular rod cutting and grinding integrated equipment in an embodiment of the present application. As shown inFigure 1 As shown, the integrated cutting and grinding equipment for small rectangular rods in this application includes: a half-rod cutting device 1, a silicon rod loading and unloading device 17, and a half-rod grinding device 2 connected to each other. The half-rod cutting device 1 is used to perform square cutting and halving operations on silicon rods with circular cross-sections to form at least two half-rods with rectangular cross-sections. The half-rod grinding device 2 is used to perform grinding and chamfering operations on the half-rods transferred from the silicon rod loading and unloading device 17 in the half-rod cutting device 1.

[0032] Please see Figure 2 Displayed as Figure 1 A structural schematic diagram of a half-bar cutting device. Regarding half-bar cutting device 1, combined with... Figure 1 and Figure 2 The half-rod cutting device 1 includes: a cutting machine base 11, a first silicon rod transfer device 12, a first silicon rod cutting device 13, a second silicon rod transfer device 14, and a second silicon rod cutting device 15. It should be noted that, in the case of... Figure 1 In the illustrated embodiment, the settings of the first direction, the second direction, and the third direction are shown in the figure. Specifically, the first direction is... Figure 1 The second direction is the X-axis in the diagram. Figure 1 The Y-axis in the diagram, the third direction is... Figure 1 The Z-axis in the diagram.

[0033] The cutting machine base, as the main component of a half-bar cutting device, provides a processing platform. In practical applications, the cutting machine base is relatively large in size and weight to provide a large mounting surface and robust overall machine stability. It should be understood that the cutting machine base can serve as a seat for different structures or components performing processing operations within the half-bar cutting device, and its specific structure can be modified based on different functional or structural requirements. In some examples, the cutting machine base includes fixing or limiting structures for supporting different components within the half-bar cutting device, such as a base, column, or frame, all of which are cutting machine bases as described in this application.

[0034] Meanwhile, in some examples, the cutting base can be a single, integrated base, while in others, the cutting base can include multiple independent bases.

[0035] The cutting machine base has a cutting platform, which can be divided into multiple functional areas according to the specific work content of the silicon rod processing operation. In some embodiments, the cutting platform has one or more cutting station groups, each cutting station group including a first cutting station and a second cutting station arranged in parallel. Therefore, in... Figure 1 and Figure 2In the shown embodiment, the cutting processing platform is provided with one cutting station group, and the cutting station group includes a first cutting station and a second cutting station arranged in parallel along the second direction, wherein each cutting station includes a loading and unloading area and a cutting area, i.e., the first cutting station includes a first loading and unloading area and a first cutting area, and the second cutting station includes a second loading and unloading area and a second cutting area. However, this is not a limitation. Please refer to Figure 4 , which shows a structural schematic diagram of the half-rod cutting device in another embodiment. In the embodiment as shown in Figure 4 , the cutting processing platform of the half-rod cutting device is provided with two cutting station groups, and each cutting station group includes a first cutting station and a second cutting station arranged in parallel along the second direction. In the embodiments as shown in Figure 1 and Figure 2 , or in the embodiment as shown in Figure 4 , a first silicon rod transfer device 12 and a first silicon rod cutting device 13 are configured corresponding to the first cutting station, and a second silicon rod transfer device 14 and a second silicon rod cutting device 15 are configured corresponding to the second cutting station.

[0036] The first cutting station includes a first loading and unloading area and a first cutting area, and the first cutting station is provided with a first silicon rod transfer device for carrying a silicon rod with a circular cross section to transfer between the first loading and unloading area and the first cutting area along a transfer direction. The first silicon rod cutting device is arranged at the first cutting area and is provided with at least one first cutting wire saw, which is located in a vertical plane and arranged along the vertical direction or arranged at an angle with the vertical direction. The first silicon rod cutting device and the first silicon rod transfer device are relatively moved along the transfer direction to perform a first cutting operation on the silicon rod with a circular cross section by the at least one first cutting wire saw, so that the silicon rod forms two parallel first side surfaces. The vertical plane is composed of the first direction and the third direction.

[0037] The first silicon rod transfer device is used to carry the silicon rod to transfer between the first loading and unloading area and the first cutting area of the first cutting station along the transfer direction, wherein the silicon rod (with a circular cross section) is horizontally placed on the first silicon rod transfer device, and the axis of the silicon rod is consistent with the transfer direction, and the transfer direction is consistent with the first direction. In some embodiments, the first silicon rod transfer device can include a first transfer channel, a first bearing platform, and a first transfer driving mechanism.

[0038] The first transfer channel is arranged along the transfer direction. In some implementations, the first transfer channel includes a first transfer guide rail. The length of the first transfer channel in the transfer direction is greater than the length of the silicon rod to be cut.

[0039] The first carrying platform is arranged on the first transfer channel and is used for carrying the silicon rod. After the silicon rod is carried by the first carrying platform, the silicon rod is in a horizontal position, i.e., the axial line of the silicon rod is consistent with the transfer direction (i.e., the first direction).

[0040] The first transfer driving mechanism is used for driving the first carrying platform and the silicon rod carried thereby to move on the first transfer channel along the transfer direction.

[0041] In some embodiments, the first carrying platform comprises at least two first carrying members arranged at intervals along the transfer direction.

[0042] In some embodiments, the first carrying member comprises a first carrying support and a first carrying structure, wherein the first carrying support is arranged on the first transfer guide rail of the first transfer channel, and the first carrying structure is used for carrying the to-be-cut silicon rod and is in contact with the curved surface of the to-be-cut silicon rod.

[0043] In some implementations, please refer to Figure 6 , which shows a structural schematic diagram of the first silicon rod transfer device. As Figure 6 shown, the whole of the first carrying member 121 is a Y-shaped carrying structure. The first carrying member can adopt a Y-shaped carrying structure. The bottom of the Y-shaped carrying structure serves as a carrying support, and the upper fork of the Y-shaped carrying structure serves as a first carrying structure, wherein the inner side slopes of the upper fork are in contact with the curved surface of the to-be-cut silicon rod. In addition, the top of the upper fork of the Y-shaped carrying structure can also have a certain width. When the to-be-cut silicon rod in a horizontal position is carried by the Y-shaped carrying structure, the upper fork (i.e., the V-shaped part) of the Y-shaped carrying structure carries the to-be-cut silicon rod, and the two inner side slopes of the upper fork are in contact with the curved surface of the to-be-cut silicon rod. In this way, the to-be-cut silicon rod with a circular cross section can also be subjected to centering operation, i.e., the axial line of the to-be-cut silicon rod corresponds to the center of the upper intersection (i.e., the bottom groove of the V-shaped part).

[0044] As mentioned before, the first carrying platform comprises at least two first carrying members arranged at intervals along the transfer direction, and the carrying surface formed by the first carrying members is adapted to the length of the silicon rod to be carried.

[0045] In some embodiments, the first carrying platform further comprises a first carrying member driving mechanism, which is used for driving at least one first carrying member to move along the transfer direction so as to adjust the carrying interval between the two first carrying members and adapt to silicon rods of different lengths.

[0046] In some embodiments, the first carrying member driving mechanism comprises a first carrying member moving guide rail arranged along the transfer direction and a first carrying member driving unit used for driving at least one first carrying member to move along the first carrying member moving guide rail.

[0047] In some embodiments, the first carrier driving unit can include: a regulating rack arranged along the transfer direction; a regulating gear associated with the first carrier to be moved and engaged with the regulating rack; and a regulating driving source for driving the regulating gear to rotate to move the associated first carrier along the transfer direction. When at least two first carriers in the first carrier platform are to be configured with the first carrier driving unit, the regulating rack can be shared, for example, when two first carriers are to be configured with the first carrier driving unit as described above, a shared regulating rack, a first regulating gear and a first regulating driving source associated with a first carrier, and a second regulating gear and a second regulating driving source associated with a second carrier can be included.

[0048] In some embodiments, the first carrier driving unit can include: a regulating rack arranged along the transfer direction; a regulating gear associated with the first carrier to be moved and engaged with the regulating rack; and a regulating driving source for driving the regulating gear to rotate to move the associated first carrier along the transfer direction. When at least two first carriers in the first carrier platform are to be configured with the first carrier driving unit, the regulating rack can be shared, for example, when two first carriers are to be configured with the first carrier driving unit as described above, a shared regulating rack, a first regulating gear and a first regulating driving source associated with a first carrier, and a second regulating gear and a second regulating driving source associated with a second carrier can be included.

[0049] In some embodiments, the first transfer driving mechanism includes: a first platform transfer guide rail arranged along the transfer direction; and a first transfer driving unit for driving the first carrier platform to move along the first platform transfer guide rail.

[0050] In some embodiments, the first transfer driving unit includes: a transfer rack arranged along the transfer direction; a transfer gear associated with the first carrier platform and engaged with the transfer rack. In some embodiments, the transfer gear is associated with at least two first carriers in the first carrier platform. The transfer gear associated with at least two first carriers in the first carrier platform can be achieved by: at least two first carriers are combined through a connecting structure (such as a frame, a connecting plate, a connecting frame, etc.), and the driving gear is arranged on the connecting structure. A gear driving source is used to drive the transfer gear to rotate to move the associated first carrier platform along the transfer direction. The gear driving source can be, for example, a servo motor.

[0051] In some embodiments, the first transfer driving unit comprises a transfer screw rod and a screw rod driving source. The transfer screw rod is arranged along the transfer direction and is associated with the first carrying platform. In some embodiments, the transfer screw rod is associated with at least two first carrying members in the first carrying platform. The association of the transfer screw rod with the at least two first carrying members in the first carrying platform can be achieved by the following manner: the at least two first carrying members are combined through a connecting structure (such as a frame, a connecting plate, a connecting frame, etc.), and the transfer screw rod is associated with the connecting structure. The screw rod driving source is used to drive the transfer screw rod to rotate so as to move the associated first carrying platform along the transfer direction. The screw rod driving source may, for example, be a servo motor.

[0052] In actual applications, the first carrying member driving mechanism and the first transfer driving mechanism overlap in part of the functions, and therefore, in some embodiments, the function of the first carrying member driving mechanism for driving the at least one first carrying member to move along the transfer direction to adjust the carrying interval between the two first carrying members can be completed by the first transfer driving mechanism.

[0053] The first silicon rod cutting device is arranged on the first cutting station and is used to perform a first cutting operation on the silicon rod to be cut carried by the first silicon rod transfer device at the first cutting position of the first cutting station, so as to cut off the opposite two skin portions of the silicon rod to be cut with a circular cross section, so that the silicon rod forms two parallel first side cutting surfaces.

[0054] The first silicon rod cutting device comprises at least one first wire cutting unit, the first wire cutting unit comprises a plurality of first cutting wheels and a first cutting wire, the first cutting wire is sequentially wound around the plurality of first cutting wheels to form at least one first wire saw, the at least one first wire saw is located in a vertical plane and is arranged along the vertical direction or is arranged at an angle with the vertical direction, and the first cutting operation is performed on the silicon rod to be cut carried by the first silicon rod transfer device by the relative movement of the first wire cutting unit, the first cutting station, the first silicon rod transfer device and the silicon rod to be cut carried thereby, and the at least one first wire saw. Wherein, the first cutting wire is wound between each first cutting wheel in a ring-shaped winding manner with the head connected to the tail, at this time, the first cutting wire can also be referred to as a closed-loop cutting wire.

[0055] In some embodiments, as shown in Figure 1 and Figure 2 (or Figure 4 )the first silicon rod cutting device 13 comprises two first wire cutting units 131 arranged in parallel, each first wire cutting unit comprises a plurality of first cutting wheels and a first cutting wire, the first cutting wire is wound around the plurality of first cutting wheels to form at least one first wire saw, and the first wire saw is arranged along the vertical direction or at an angle with the vertical direction.

[0056] Please refer to Figure 5, shows a schematic view of the structure of a first wire cutting unit in a first silicon rod cutting device in an embodiment. In the embodiment as shown in Figure 5 In the embodiment as shown in FIG. 1, the first silicon rod cutting device 13 comprises two first wire cutting units 131. Each of the first wire cutting units 131 comprises a plurality of first cutting wheels 132 and a first cutting wire 134, the first cutting wire 134 is wound around the plurality of first cutting wheels 132 to form at least one first wire saw 135, wherein the first wire saw 135 is arranged along a vertical direction or at an angle with respect to the vertical direction. In addition, the first silicon rod cutting device 13 can further comprise a first cutting mounting structure 130, and the plurality of first cutting wheels 132 are arranged on the first cutting mounting structure 130.

[0057] In some embodiments, the plurality of first cutting wheels in the first wire cutting unit are connected to the first cutting mounting structure, or the plurality of first cutting wheels are arranged on the first cutting mounting structure through a support, a connecting plate, or a mounting frame. The first cutting mounting structure serves as a carrier for associating the plurality of first cutting wheels in the first wire cutting unit with the first cutting frame or the first cutting seat. The specific form of the first cutting mounting structure can be a beam body, a plate frame, a support, etc., which is not limited in the present application.

[0058] In the small-size rectangular rod cutting and grinding integrated device of the present application, the first wire saw in the first wire cutting unit of the first silicon rod cutting device is arranged along a vertical direction or at an angle with respect to the vertical direction.

[0059] In the first wire cutting unit, at least one first cutting wire groove for winding the cutting wire is arranged in the first cutting wheel, and the first cutting wire groove can define the position of the first cutting wire to control the cutting accuracy. Any first wire saw is formed between two oppositely arranged first cutting wheels by winding the first cutting wire around the two first cutting wheels, and the positions of the two first cutting wheels and the positional relationship between the two first cutting wheels can be used to determine the direction of the first wire saw.

[0060] In the embodiment as shown in FIG. 1, the first silicon rod cutting device 13 comprises two first wire cutting units 131. Each of the first wire cutting units 131 comprises a plurality of first cutting wheels 132 and a first cutting wire 134, the first cutting wire 134 is wound around the plurality of first cutting wheels 132 to form at least one first wire saw 135, wherein the first wire saw 135 is arranged along a vertical direction or at an angle with respect to the vertical direction. In addition, the first silicon rod cutting device 13 can further comprise a first cutting mounting structure 130, and the plurality of first cutting wheels 132 are arranged on the first cutting mounting structure 130. Figure 5As shown, in some embodiments, the first cutting installation structure 130 is a rectangular frame as a whole, the first cutting unit includes a plurality of first cutting wheels 132, for example, four first cutting wheels 132, which are respectively arranged near the four corners of the first cutting installation structure 130, and the wheel surface of each first cutting wheel 132 is located in the vertical plane (the vertical plane is composed of the first direction and the third direction), wherein two first cutting wheels 132 are arranged in front (relatively closer to the first loading and unloading position) and in parallel, and the other two first cutting wheels 132 are arranged in back (relatively farther away from the first loading and unloading position) and in parallel, the first cutting wire 134 is wound around the four first cutting wheels 132 to form at least one first cutting wire saw 135 (for example, the first cutting wire saw 135 is formed between the two first cutting wheels 132 arranged in front and in parallel), and the first cutting wire saw 135 is arranged along the third direction (i.e., the vertical direction). In addition, in order to enable the first cutting wire saw 135 to effectively cut the silicon rod, the first cutting wire saw 135 interferes with the silicon rod in the vertical direction.

[0061] In some embodiments, the first cutting wire is wound between each first cutting wheel in a head-to-tail manner to form a ring-shaped cutting wire (which can also be referred to as a closed-loop cutting wire). Figure 2 Figure 4 ) and Figure 5 In the embodiment shown, the first cutting wire 134 is wound between the plurality of first cutting wheels 132 in a head-to-tail manner to form a ring-shaped cutting wire (which can also be referred to as a closed-loop cutting wire).

[0062] The plurality of first cutting wheels in the first cutting unit are wound by a ring-shaped cutting wire. In this example, the first silicon rod cutting device can dispense with the wire storage drum. The ring-shaped cutting wire can be kept running at a high speed by the cutting wire driving device, and at the same time, the ring-shaped cutting wire can run in the same running direction during the cutting operation. In this way, the first silicon rod cutting device can achieve high-precision first cutting operation, avoiding the problems of the cutting surface having ripples and the like caused by the running direction reversal or the running speed of the cutting wire in the existing cutting method. At the same time, the ring-shaped cutting wire can effectively reduce the total length of the cutting wire required by the first wire cutting unit, thereby reducing the production cost.

[0063] In some embodiments, the cutting wire driving device is a motor having a power output shaft, and the power output shaft is connected to the first cutting wheel. In this way, the first cutting wire can be driven to run in the winding direction by the second cutting wheel. Of course, in specific embodiments, the cutting wire driving device can also be another driving source such as a hydraulic motor, as long as it can drive the first cutting wire to run, which is not limited in the present application.

[0064] ​The first wire cutting unit in this application may further include a first transition wheel, which is used to reverse or guide the first cutting line, or the first transition wheel can be used to adjust the tension of the first cutting line. The number of first transition wheels may be one or more depending on the layout requirements.

[0065] The first transition wheel guides and pulls the first cutting wire while simultaneously acting as a tensioning wheel to adjust the tension of the first cutting wire. The tensioning wheel is used to adjust the tension of the first cutting wire, which can reduce the probability of wire breakage and thus reduce material consumption.

[0066] like Figure 5 As shown, in the first wire cutting unit, the first cutting mounting structure 130 is a rectangular frame. Each first wire cutting unit 131 includes multiple first cutting wheels 132 and multiple first transition wheels 133, for example, two first cutting wheels 132 and two first transition wheels 133, which are respectively located near the four corners of the first cutting mounting structure 130. The wheel surfaces of the two first cutting wheels 132 and the two first transition wheels 133 are located in the vertical plane. The two first cutting wheels 132 are arranged in front and parallel vertically, and the two first transition wheels 133 are arranged in the back and parallel vertically. The first cutting line 134 is wound around the two first cutting wheels 132 and the two first transition wheels 133 to form at least one first cutting wire saw 135 (for example, the first cutting wire saw 135 is formed between the two first cutting wheels 132). The at least one first cutting wire saw 135 is arranged vertically.

[0067] As before, the first cutting line 134 is wound around a plurality of first cutting wheels 132 or a plurality of first cutting wheels 132 and a plurality of first transition wheels 133 to form a first cutting line saw 135 between the two preceding first cutting wheels 132. Therefore, to adjust the line length of the first cutting line saw 135, the spacing between the two first cutting wheels 132 can be adjusted, which can be achieved by changing the position of at least one of the two first cutting wheels 132.

[0068] The first wire saw is located in the vertical plane and is arranged along the vertical direction or at an angle to the vertical direction. The silicon rod to be cut, carried by the first silicon rod transfer device at the corresponding first cutting station, is placed horizontally (the axis of the silicon rod to be cut is arranged along the transfer direction). Therefore, in order to cut the silicon rod to be cut, the length of the first wire saw is adapted to the size of the end face of the silicon rod to be cut. For example, the length of the first wire saw should be greater than or equal to the diameter of the silicon rod to be cut or the chord length of the silicon rod to be cut at the cutting position.

[0069] The direction of the first cutting wheel surface has a corresponding relationship with the first cutting line saw, and it should be understood that the first cutting wheel surface is parallel to the plane in which any first cutting line groove in the first cutting wheel is located. In order to control the cutting accuracy and the stability of the cutting process, the first cutting line saw should be located in the plane in which the first cutting line groove for winding the first cutting line is located. At the same time, in the cutting process, the force direction of the silicon rod to the first cutting line should be parallel to the cutting line groove, that is, the cutting wheel surface is parallel to the cutting direction, and the cutting direction in the first cutting operation is the axial direction of the silicon rod, that is, the transfer direction (i.e., the first direction X-axis).

[0070] The first silicon rod cutting device includes two first wire cutting units arranged in parallel, and each first wire cutting unit has a first cutting line saw. Therefore, the two first wire cutting units form two parallel cutting line saws. Figure 5 In the embodiment shown in FIG. 1, the first silicon rod cutting device includes two first wire cutting units arranged in parallel along the second direction, and each first wire cutting unit has a first cutting line saw. The first cutting line saw is arranged along the vertical direction. Therefore, the two first cutting line saws belonging to the two first wire cutting units are both arranged along the vertical direction.

[0071] In fact, the first cutting line saw can still have other changes. In some embodiments, the first cutting line saw is arranged along the vertical direction, but it is not limited thereto. In other embodiments, the position of the first cutting line saw can be located in the vertical plane and arranged at an angle of less than or equal to 10 degrees (≤10°), or less than or equal to 5 degrees (≤5°), or less than or equal to 3 degrees (≤3°) with the vertical direction (i.e., the third direction). That is, the first cutting line saw can be arranged in the vertical plane and form an angle of less than or equal to 10 degrees (≤10°), or less than or equal to 5 degrees (≤5°), or less than or equal to 3 degrees (≤3°) with the vertical direction (i.e., the third direction). The angle here is not limited to an integer angle, but can be any angle within the limited range, such as 0.09°, 1.3°, 2.5°, 3°, etc. In some embodiments, two first cutting wheels are arranged above and below to form the first cutting line saw. The upper first cutting wheel is in front in the first direction and the lower first cutting wheel is in back in the first direction. The first cutting line saw formed thereby can form a positive angle with the vertical direction. In some embodiments, two first cutting wheels are arranged above and below to form the first cutting line saw. The upper first cutting wheel is in back in the first direction and the lower first cutting wheel is in front in the first direction. The first cutting line saw formed thereby can form a negative angle with the vertical direction. The angle of the positive angle and the negative angle can be changed according to the cutting process requirements and the size specifications of the silicon rod, for example, by changing the position of one or both of the two first cutting wheels arranged above and below in relation to the first cutting line saw to adjust the angle of the angle.

[0072] In some embodiments, the first wire cutting unit further comprises a first tension adjusting mechanism. In wire cutting processing, the size of the cutting wire tension affects the yield and processing accuracy in cutting, and the first tension adjusting mechanism detects the tension and adjusts the tension to make the tension of the first cutting wire reach a certain threshold value and maintain a constant value or a certain range allowed by the numerical center of the constant value in cutting.

[0073] In an embodiment, the first tension adjusting mechanism is associated with the first transition wheel 133 or the first cutting wheel. The first transition wheel 133 in the wire cutting unit functions as a tension wheel for adjusting the cutting wire tension while achieving the guiding traction of the first cutting wire 134.

[0074] The tension wheel is used to adjust the tension of the cutting wire, which can reduce the probability of cutting wire breakage to reduce consumables. In cutting operations, the cutting wire plays a crucial role, but even the best cutting wire has limited extension and wear resistance, that is, the cutting wire will gradually thin out in continuous operation until it is eventually pulled apart. Therefore, the current wire cutting equipment generally designs a cutting wire tension compensation mechanism to compensate for the extension of the cutting wire in the round trip, and the tension wheel is one of the implementation means.

[0075] In some embodiments, taking the tension wheel as an example, the tension adjusting mechanism at least includes: a tension sensor, a servo motor, and a lead screw; the tension sensor is arranged on the transition wheel, continuously senses the tension value of the cutting wire on the transition wheel, and sends a driving signal when the tension value is less than the preset value; the servo motor is electrically connected to the tension sensor and starts to work after receiving the driving signal sent by the tension sensor; one end of the lead screw is connected to the transition wheel, and the other end is connected to the servo motor, and when the servo motor works, the transition wheel is pulled to move in one direction to adjust the tension of the cutting wire.

[0076] In some embodiments, the tension adjusting mechanism comprises: a linkage assembly and a tension driving unit, the linkage assembly is associated with the transition wheel as a tension wheel and the tension driving unit, and the linkage assembly is controlled by the tension driving unit, that is, the linkage assembly is driven by the tension driving unit to act to drive the transition wheel to change position to adjust the tension of the closed-loop cutting wire.

[0077] Regarding the tension driving unit, in some implementations, the tension driving unit can include a counterweight part, which can be associated with the linkage assembly. For example, taking a certain transition wheel as the tension wheel, when the tension of the closed loop cutting line is to be increased, the counterweight part is released, the counterweight part is lowered, the linkage assembly is driven to move the associated tension wheel under the action of the gravity of the counterweight part, so as to expand the circumference of the figure surrounded by the cutting wheel and the transition wheel, and increase the tension of the closed loop cutting line. When the tension of the closed loop cutting line is to be reduced, the counterweight part is lifted, the linkage assembly is driven to move the associated tension wheel in the opposite direction under the action of the gravity of the counterweight part, so as to expand the circumference of the figure surrounded by the cutting wheel and the transition wheel, and reduce the tension of the closed loop cutting line.

[0078] The counterweight part can include counterweight blocks, wherein the number of the counterweight blocks can be changed according to the requirement of the closed loop cutting line tension adjustment, for example, the number of the counterweight blocks can be increased when the tension of the closed loop cutting line is to be increased, and the number of the counterweight blocks can be reduced when the tension of the closed loop cutting line is to be reduced.

[0079] In some implementations, the counterweight part can include a locking mechanism for locking the counterweight part so that the counterweight part is stationary relative to the cutting installation structure, so that the counterweight part and the cutting installation structure are switched from the active state to the locked state. In some examples, the locking mechanism can be, for example, a latch.

[0080] The tension driving unit can still be changed in other ways, for example, in some implementations, the tension driving unit can include a tension cylinder.

[0081] In some embodiments, the first silicon rod cutting device further comprises at least one first distance adjusting mechanism arranged in the at least one first wire cutting unit, for driving the plurality of first cutting wheels in the first wire cutting unit to move in a direction perpendicular to the wheel surface of the cutting wheel. The first silicon rod cutting device can realize the switching of the first cutting line between different cutting grooves of the first cutting wheel based on the distance adjusting mechanism, or adjust the position of the first cutting line saw to change the cutting position (or processing specification) relative to the silicon rod.

[0082] In some implementations, the first wire cutting unit is taken as an example for illustration, the first wire cutting unit includes a plurality of first cutting wheels and a plurality of first transition wheels. The carrier for carrying the plurality of first cutting wheels and the first transition wheels is, for example, a first cutting mounting structure, and the first distance adjusting mechanism is used to drive the first cutting mounting structure as a whole to move along the vertical direction of the cutting wheel surface. The first transition wheels move along with the first cutting wheels to follow the movement of the first cutting mounting structure along the vertical direction of the cutting wheel surface (i.e., the transposition direction or the second direction Y-axis), and in this state, the plurality of first cutting wheels and the first transition wheels are relatively static, i.e., the positional relationship between the first transition wheels and the first cutting wheels does not change. At this time, the first distance adjusting mechanism is used to adjust the cutting position of at least one first wire saw in at least one first wire cutting unit relative to the silicon rod.

[0083] In some implementations, each first cutting wheel has at least two first cutting wire grooves, different first cutting wire grooves are parallel to each other, and there is a cutting offset in the vertical direction of the cutting wheel surface between different first cutting wire grooves. When the first distance adjusting mechanism is used to drive the plurality of first cutting wheels in the first wire cutting unit to move relative to the first cutting mounting structure, the position of the first wire around the wire groove on the first cutting wheel can be changed. In some implementations, the plurality of first cutting wheels in the first wire cutting unit can be connected to a support, for example, wherein the support is movably arranged on the first cutting mounting structure and is driven by the first distance adjusting mechanism to move along the vertical direction of the cutting wheel surface.

[0084] When at least one first distance adjusting mechanism is used to change the cutting wire groove of the first wire around the plurality of first cutting wheels in at least one first wire cutting unit, in actual scenarios, the first cutting wire grooves respectively corresponding to the first cutting wire before and after the groove change can be determined in advance, for example, the position of the first cutting wire before the groove change is the first cutting wire groove a1, and the first cutting wire is wound around the first cutting wire groove a2 after the groove change. Based on the cutting offset between the first cutting wire groove a1 and the first cutting wire groove a2, the displacement amount of the plurality of first cutting wheels in the first wire cutting unit driven by the first distance adjusting mechanism is determined, i.e., the displacement amount is set as the cutting offset between the first cutting wire groove a1 and the first cutting wire groove a2, which can be used to realize the change of the first cutting wire from the first cutting wire groove a1 to the first cutting wire groove a2. It should be noted that the direction of the movement of the plurality of first cutting wheels in the first wire cutting unit driven by the first distance adjusting mechanism along the vertical direction of the cutting wheel surface is the direction in which the cutting wire groove a2 points to the cutting wire groove a1. After the groove change, the cutting position of the first cutting wire saw in space does not change, and therefore the step of further calibrating the position of the first cutting wheel or other components can be omitted, and the silicon rod can be cut according to the preset cutting amount, so that the groove change process is simplified.

[0085] To further illustrate the implementation of the at least one first lead-screw mechanism to move the plurality of first cutting wheels in the first wire saw unit in the direction perpendicular to the wheel surface of the first cutting wheels, the following embodiments are disclosed. When the number of the first wire saw units in the first silicon rod cutting device is different, the specific form of the at least one first lead-screw mechanism can be changed accordingly.

[0086] In some embodiments, the first silicon rod cutting device comprises a single wire saw unit, where the single wire saw unit is a first wire saw unit. The first lead-screw mechanism comprises a lead screw arranged in the direction perpendicular to the wheel surface of the first cutting wheels and threadedly connected with the single wire saw unit; and a lead screw driving source for driving the lead screw to rotate.

[0087] The single wire saw unit in the first silicon rod cutting device comprises a plurality of first cutting wheels, and the first cutting wire is wound around the plurality of first cutting wheels to form at least one first cutting wire saw. The lead screw of the first lead-screw mechanism has a distal end and a proximal end. In a specific implementation, for example, the proximal end of the lead screw can be connected to the lead screw driving source and rotated under the driving of the lead screw driving source, and the distal end of the lead screw is threadedly connected to the first single wire saw unit. Through the connection mode of the two ends of the lead screw, the lead screw can rotate based on the transmission of the lead screw driving source and convert the rotation of the lead screw into axial displacement by means of the threaded connection. The axial displacement direction is the arrangement direction of the lead screw, i.e., the direction perpendicular to the wheel surface of the cutting wheels. By driving the lead screw of the first lead-screw mechanism to rotate, the displacement of the single wire saw unit in the direction perpendicular to the wheel surface of the first cutting wheels can be achieved. By changing the rotation direction of the lead screw driven to rotate, the forward or backward movement of the first cutting wheels of the single wire saw unit in the direction perpendicular to the wheel surface of the first cutting wheels can be achieved.

[0088] In some embodiments, the first silicon rod cutting device comprises a single wire cutting unit, and the single wire cutting unit is a first wire cutting unit. The first distance adjusting mechanism comprises: a telescopic member arranged along the normal direction of the first cutting wheel surface and associated with the single wire cutting unit; and a telescopic member driving source for driving the telescopic member to perform telescopic movement along the normal direction of the first cutting wheel surface. In this embodiment, the telescopic member can be arranged in the form of a rod body, and the extension direction of the rod body is the normal direction of the first cutting wheel surface. The telescopic member can perform telescopic movement along the extension direction under the driving of the telescopic member driving source. One end of the telescopic member can be connected to the telescopic member driving source, and the freely extendable end is associated with the single wire cutting unit. That is, the first cutting wheel of the single wire cutting unit can be moved in the normal direction of the first cutting wheel surface under the action of the telescopic member driving source. The telescopic member can be, for example, an electric telescopic rod, or a connecting rod connected to an air cylinder, which can serve as the telescopic member driving source. The telescopic rod can be directly connected to the first cutting mounting structure of the single wire cutting unit, or indirectly connected to the first single wire cutting unit through a support or a bearing. It should be understood that the extension or contraction of the telescopic member corresponds to the forward movement or backward movement of the single wire cutting unit along the normal direction of the first cutting wheel surface.

[0089] In this embodiment, in some embodiments, the association can be achieved by one or more of clamping, screwing, bonding, and welding. For example, in the above embodiment, the telescopic rod can be associated with the first wire cutting unit by one or more of clamping, screwing, bonding, and welding. Of course, the association can be achieved in other ways, and the purpose is to achieve transmission in the second direction.

[0090] In some embodiments, the first silicon rod cutting device comprises a single wire cutting unit, and the single wire cutting unit is a first wire cutting unit. The first distance adjusting mechanism comprises: a telescopic member arranged along the normal direction of the first cutting wheel surface and associated with the single wire cutting unit; and a telescopic member driving source for driving the telescopic member to perform telescopic movement along the normal direction of the first cutting wheel surface. In this embodiment, the telescopic member can be arranged in the form of a rod body, and the extension direction of the rod body is the normal direction of the first cutting wheel surface. The telescopic member can perform telescopic movement along the extension direction under the driving of the telescopic member driving source. One end of the telescopic member can be connected to the telescopic member driving source, and the freely extendable end is associated with the single wire cutting unit. That is, the first cutting wheel of the single wire cutting unit can be moved in the normal direction of the first cutting wheel surface under the action of the telescopic member driving source. The telescopic member can be, for example, an electric telescopic rod, or a connecting rod connected to an air cylinder, which can serve as the telescopic member driving source. The telescopic rod can be directly connected to the first cutting mounting structure of the single wire cutting unit, or indirectly connected to the first single wire cutting unit through a support or a bearing. It should be understood that the extension or contraction of the telescopic member corresponds to the forward movement or backward movement of the single wire cutting unit along the normal direction of the first cutting wheel surface.

[0091] In some embodiments, as Figure 5As shown, the first silicon rod cutting device includes two first wire cutting units arranged in parallel and opposite directions, at least one of the two first wire cutting units is driven to move along the orthogonal direction of the first cutting wheel surface by at least one distance adjusting mechanism, for adjusting the wire saw distance between the first cutting wire saws in the two first wire cutting units, or transforming the cutting wire wound on the cutting wire grooves of the plurality of first cutting wheels in a certain first wire cutting unit.

[0092] The at least one first distance adjusting mechanism can be connected to a certain first wire cutting unit, or simultaneously associated with the two first wire cutting units, to drive the plurality of first cutting wheels in the connected or associated first wire cutting unit or units to move along the orthogonal direction of the first cutting wheel surface.

[0093] In some embodiments, the first distance adjusting mechanism includes a lead screw arranged along the orthogonal direction of the first cutting wheel surface and threadedly connected to a certain first wire cutting unit, and a lead screw driving source for driving the lead screw to rotate. The plurality of first cutting wheels in the certain first wire cutting unit connected to the lead screw and the lead screw driving source move along the orthogonal direction of the first cutting wheel surface in a similar manner as the foregoing embodiments. The certain first wire cutting unit driven by the distance adjusting mechanism can be regarded as a single wire cutting unit, which will not be described herein. It should be understood that the first distance adjusting mechanism arranged on any first wire cutting unit can realize the increase and decrease of the parallel first cutting wire saw distance between the two first wire cutting units, and the first silicon rod cutting device can cut the silicon rod into different specifications.

[0094] In some embodiments, the first distance adjusting mechanism includes a telescopic member arranged along the orthogonal direction of the first cutting wheel surface and associated with a certain first wire cutting unit, and a telescopic member driving source for driving the telescopic member to perform telescopic movement along the orthogonal direction of the first cutting wheel surface. Here, the certain first wire cutting unit provided with the first distance adjusting mechanism can be regarded as a single wire cutting unit, and the specific implementation manner can refer to the foregoing embodiments, which will not be described herein.

[0095] In some embodiments, the first distance adjusting mechanism includes a distance adjusting rack arranged along the orthogonal direction of the first cutting wheel surface and associated with a certain first wire cutting unit, a transmission gear meshing with the distance adjusting rack, and a gear driving source for driving the transmission gear to rotate. Through the meshing transmission gear and distance adjusting rack, the gear driving source can control the distance adjusting rack to move along the rack direction line, and the certain first wire cutting unit associated with the distance adjusting rack can drive the plurality of first cutting wheels to move along the orthogonal direction of the first cutting wheel surface through the rack.

[0096] In some embodiments, the distance adjusting mechanism comprises a bidirectional screw rod arranged along the orthogonal direction of the first cutting wheel surface and threadedly connected with the two first wire cutting units, and a screw rod driving source for driving the screw rod to rotate so as to move the two first wire cutting units towards or away from each other along the orthogonal direction of the first cutting wheel surface. In one implementation, the bidirectional screw rod is a double-thread screw rod, the two ends of the bidirectional screw rod are respectively provided with threads with opposite directions, and the screw rod driving source can be arranged at either end of the bidirectional screw rod to drive the bidirectional screw rod to rotate along the screw rod axis. When the bidirectional screw rod is driven to rotate by the screw rod driving source, the movements of the two ends of the bidirectional screw rod are converted into axial linear movements in opposite directions by the threads at the two ends of the bidirectional screw rod, and the axial direction is the orthogonal direction of the first cutting wheel surface where the bidirectional screw rod is arranged. Under the driving of the screw rod driving source, the plurality of first cutting wheels corresponding to the two first wire cutting units can move towards or away from each other.

[0097] In some implementations, the first distance adjusting mechanism comprises a servo motor arranged at the at least one first wire cutting unit. In actual scenarios, a servo motor is arranged at the at least one first wire cutting unit or each first wire cutting unit of the first silicon rod cutting device, and the servo motor controls the displacement of the corresponding first wire cutting unit along the orthogonal direction of the first cutting wheel surface. The first wire cutting unit can have a pre-determined cutting displacement for slot changing or adjustment amount for cutting position changing of the cutting line, and the plurality of first cutting wheels in the first wire cutting unit are driven to move along the orthogonal direction of the first cutting wheel surface by a pre-determined displacement by the precise positioning function of the servo motor. For example, at least one of the two first wire cutting units in the first silicon rod cutting device is independently moved along the orthogonal direction of the first cutting wheel surface by the corresponding servo motor. In some examples, the servo motor can also be replaced by a traveling motor and a traveling screw rod. It should be understood that the first distance adjusting mechanism is a driving device for driving the relative movement of the plurality of first cutting wheels in the first wire cutting unit, and the specific form thereof is not limited by the present application.

[0098] As mentioned above, in the first silicon rod cutting device, the first cutting wire saws of the two parallelly arranged first wire cutting units are vertically or obliquely arranged along the vertical direction, the first silicon rod transfer device and the silicon rod carried thereby are driven to move along the transfer direction, the first cutting wire saws of the two first wire cutting units are relatively moved along the transfer direction with the first silicon rod transfer device, and the first cutting operation is performed on the silicon rod carried by the first silicon rod transfer device by the first cutting wire saws of the two first wire cutting units. The silicon rod is cut by the first wire cutting unit, so that the silicon rod forms a cutting surface and a side skin, i.e., the silicon rod is cut by the cutting wire saw of the first wire cutting unit, so that the silicon rod forms a cutting surface and a side skin. Therefore, the first cutting operation is performed on the silicon rod with a circular cross section by the first cutting wire saws of the two parallelly arranged first wire cutting units in the first silicon rod cutting device, so that the silicon rod forms two parallel first side cutting surfaces.

[0099] The half-rod cutting device includes a first side skin anti-collapse device cooperating with the first silicon rod transfer device, which is used to stabilize the side skin when the first cutting operation is performed on the silicon rod by the first silicon rod cutting device.

[0100] It should be understood that the silicon rod carried by the first silicon rod transfer device is in a horizontal position, i.e., the axis of the silicon rod is consistent with the transfer direction (i.e., the first direction X-axis). Therefore, the side skin formed by the first cutting operation on the silicon rod by the first silicon rod cutting device is also in a horizontal position.

[0101] In some embodiments, the first side skin anti-collapse device includes a clamping support and a side skin clamp, wherein the side skin clamp is arranged on the clamping support and used to clamp the side skin.

[0102] The side skin clamp includes a clamp seat, at least one pair of end face chucks, and a chuck driving mechanism.

[0103] The at least one pair of end face chucks are oppositely arranged along the transfer direction and used to clamp two end faces of the silicon rod.

[0104] The first silicon rod transfer device includes a first side skin anti-collapse device, which cooperates with the first silicon rod transfer device and is used to clamp the end faces of the silicon rod to prevent collapse when the first cutting operation is performed on the silicon rod.

[0105] In some embodiments, the first side skin anti-collapse device includes a clamping support and a side skin clamp. Figure 5 and Figure 6 In the embodiments shown in FIGS. 16 and 17, the first side skin anti-collapse device 16 includes a clamping support 161 and a side skin clamp 162.

[0106] In some embodiments, the clamping support of the first side skin anti-collapse device is associated with the first bearing platform of the first silicon rod transfer device, i.e., the clamping support of the first side skin anti-collapse device can advance and retreat together with the first bearing platform of the first silicon rod transfer device.

[0107] The edge clamp is arranged on the clamping support. In some embodiments, the edge clamp comprises a clamp seat, at least one pair of end face chucks, and a chuck driving mechanism. In Figure 6 In the illustrated embodiment, the edge clamp 162 comprises a clamp seat 1621, a pair of end face chucks 1622 arranged opposite to each other in the clamping direction, and a chuck driving mechanism.

[0108] The chuck driving mechanism is configured to drive at least one of the at least one pair of end face chucks to move in the clamping direction to adjust the clamping distance between the at least one pair of end face chucks.

[0109] In some embodiments, the chuck driving mechanism comprises a chuck moving guide rail arranged in the clamping direction, and a chuck driving unit configured to drive at least one of the at least one pair of end face chucks to move along the chuck moving guide rail.

[0110] In some embodiments, a chuck moving guide rail is arranged between the first end face chuck and the second end face chuck of the at least one pair of end face chucks. As Figure 6 As shown, a moving guide assembly is arranged between the first end face chuck and the second end face chuck of the at least one pair of end face chucks, and the moving guide assembly comprises one or more moving guide rods or moving guide beams 1623, and a moving guide rail is arranged on the moving guide rod or moving guide beam 1623.

[0111] In some embodiments, the chuck driving unit comprises at least one chuck telescopic assembly. As Figure 6As shown, the chuck telescopic assembly includes a chuck telescopic rod and a chuck telescopic cylinder, the chuck telescopic rod is arranged along the clamping direction and associated with the corresponding one end face chuck, and the chuck telescopic cylinder is associated with the chuck telescopic rod. In some embodiments, the chuck driving mechanism is used to drive two of the pair of end face chucks to move towards or away from each other along the clamping direction, and the chuck driving mechanism includes a pair of chuck telescopic assemblies, wherein each chuck telescopic assembly corresponds to one end face chuck, the chuck telescopic rod in the chuck telescopic assembly is arranged along the clamping direction and associated with the corresponding one end face chuck, and the chuck telescopic cylinder in the chuck telescopic assembly is associated with the chuck telescopic rod. By controlling the chuck telescopic cylinder in the pair of chuck telescopic assemblies to make the corresponding chuck telescopic rod retract or extend, the pair of end face chucks can be driven to move towards or away from each other along the movement guide rail on the movement guide rod or the movement guide beam. In some embodiments, the chuck driving mechanism is used to drive one of the pair of end face chucks to move towards or away from the other end face chuck along the clamping direction, and the chuck driving mechanism includes a chuck telescopic assembly corresponding to the end face chuck to be moved, wherein the chuck telescopic rod in the chuck telescopic assembly is arranged along the clamping direction and associated with the corresponding one end face chuck, and the chuck telescopic cylinder in the chuck telescopic assembly is associated with the chuck telescopic rod. By controlling the chuck telescopic cylinder in the chuck telescopic assembly to make the corresponding chuck telescopic rod retract or extend, the corresponding one end face chuck can be driven to move towards or away from the other end face chuck along the movement guide rail on the movement guide rod or the movement guide beam.

[0112] In some embodiments, the chuck driving unit comprises at least one pair of clamping racks, a driving gear, and a gear driving source. The at least one pair of clamping racks are respectively associated with the at least one pair of end face chucks, i.e., a first clamping rack of the at least one pair of clamping racks is arranged in the clamping direction and is associated with a first end face chuck of the at least one pair of end face chucks, a second clamping rack of the at least one pair of clamping racks is arranged in the clamping direction and is associated with a second end face chuck of the at least one pair of end face chucks, and the first clamping rack and the second clamping rack of the at least one pair of clamping racks are arranged in a tooth-against-tooth manner. The driving gear is engaged with the pair of clamping racks, i.e., the driving gear is located between the first clamping rack and the second clamping rack of the pair of clamping racks and is engaged with the first clamping rack and the second clamping rack, respectively. The gear driving source is used to drive the driving gear to rotate to drive the engaged at least one pair of clamping racks to move towards each other or away from each other in the clamping direction, wherein the gear driving source may, for example, be a servo motor, and an output shaft of the servo motor is associated with the driving gear. In actual application, the servo motor as the gear driving source rotates forward to drive the associated driving gear to rotate forward, so that the first clamping rack and the second clamping rack engaged with the driving gear move towards each other, i.e., the first end face chuck associated with the first clamping rack and the second end face chuck associated with the second clamping rack move towards each other to reduce the clamping interval between the first end face chuck and the second end face chuck. The servo motor as the gear driving source rotates reversely to drive the associated driving gear to rotate reversely, so that the first clamping rack and the second clamping rack engaged with the driving gear move away from each other, i.e., the first end face chuck associated with the first clamping rack and the second end face chuck associated with the second clamping rack move away from each other to increase the clamping interval between the first end face chuck and the second end face chuck.

[0113] In some embodiments, the chuck driving unit comprises at least one pair of clamping racks, a linkage gear, and a chuck driving source. The at least one pair of clamping racks are respectively associated with the at least one pair of end face chucks, i.e., a first clamping rack of the at least one pair of clamping racks is arranged in the clamping direction and is associated with a first end face chuck of the at least one pair of end face chucks, a second clamping rack of the at least one pair of clamping racks is arranged in the clamping direction and is associated with a second end face chuck of the at least one pair of end face chucks, and the first clamping rack and the second clamping rack of the at least one pair of clamping racks are arranged in a tooth-against-tooth manner. The linkage gear is engaged with the pair of clamping racks, i.e., the linkage gear is located between the first clamping rack and the second clamping rack of the pair of clamping racks and is engaged with the first clamping rack and the second clamping rack respectively. The chuck driving source is associated with the at least one pair of end face chucks and is used to drive the at least one pair of end face chucks to move towards or away from each other in the clamping direction in cooperation with the at least one pair of clamping racks and the linkage gear. The chuck driving source may, for example, be a telescopic cylinder, and two ends of the telescopic cylinder are connected with the first end face chuck and the second end face chuck respectively. In actual application, when the telescopic cylinder as the chuck driving source is retracted, the retracted cylinder can drive the first clamping rack or the second clamping rack to move, and through the first clamping rack, the second clamping rack, and the linkage gear between the first clamping rack and the second clamping rack, the first end face chuck and the second end face chuck associated with the first clamping rack and the second clamping rack are driven to move towards each other, so as to reduce the clamping interval between the first end face chuck and the second end face chuck. When the telescopic cylinder as the chuck driving source is extended, the extended cylinder can drive the first clamping rack or the second clamping rack to move, and through the first clamping rack, the second clamping rack, and the linkage gear between the first clamping rack and the second clamping rack, the first end face chuck and the second end face chuck associated with the first clamping rack and the second clamping rack are driven to move away from each other, so as to increase the clamping interval between the first end face chuck and the second end face chuck.

[0114] In some embodiments, the chuck driving unit comprises at least one chuck clamping assembly, the chuck clamping assembly comprises a clamping screw rod and a screw rod driving source, the clamping screw rod is arranged along the clamping direction and is associated with a corresponding one of the end face chucks, and the screw rod driving source is associated with the clamping screw rod. In some implementations, the chuck driving mechanism is used to drive two of the pair of end face chucks to move towards or away from each other along the clamping direction, and the chuck driving mechanism comprises a pair of chuck clamping assemblies, each of which corresponds to one of the end face chucks, the clamping screw rod in the chuck clamping assembly is arranged along the clamping direction and is associated with the corresponding one of the end face chucks, and the screw rod driving source in the chuck clamping assembly is associated with the clamping screw rod. In some implementations, the chuck driving mechanism is used to drive one of the pair of end face chucks to move towards or away from the other end face chuck along the clamping direction, and the chuck driving mechanism comprises a chuck clamping assembly corresponding to the end face chuck to be moved, the clamping screw rod in the chuck clamping assembly is arranged along the clamping direction and is associated with the corresponding one of the end face chucks, and the screw rod driving source in the chuck clamping assembly is associated with the clamping screw rod. The screw rod driving source may, for example, be a servo motor.

[0115] In some embodiments, the chuck driving unit comprises a bidirectional screw rod and a screw rod driving source, wherein the bidirectional screw rod is arranged along the clamping direction, the two ends of the bidirectional screw rod are respectively provided with threads with opposite directions, the two ends of the bidirectional screw rod are respectively associated with at least one pair of end face chucks, and the screw rod driving source is associated with the bidirectional screw rod. In actual applications, the bidirectional screw rod is driven to rotate by the screw rod driving source (such as a servo motor) to make the associated opposite two end face chucks move towards or away from each other along the clamping direction.

[0116] The at least one pair of end face chucks are arranged opposite to each other along the clamping direction and are used to clamp the two end faces of the silicon rod.

[0117] In some embodiments, for any one of the at least one pair of end face chucks, the end face chuck comprises a clamping base and a skin pressing piece provided on the clamping base, and the skin pressing piece is used to press the skin to be cut in the silicon rod.

[0118] The clamping base serves as the main body of the end face chuck and is used to provide a setting basis for the skin pressing piece. In some implementations, the clamping base may, for example, be a clamping base plate, the size of which is adapted to the skin to be cut, that is, at least part or all of the clamping base plate covers the skin to be cut.

[0119] In the end face chuck, the skin pressing piece comprises a skin pressing screw provided on the clamping base plate, and the number of the skin pressing screw may be one or more. In actual applications, the skin pressing screw is used to press the skin to be cut and can ensure that the skin to be cut in the silicon rod remains stable in the first cutting operation.

[0120] Of course, in some embodiments, the edge pressing member in the end face chuck may also include an edge pressing elastic member disposed on the clamping base. For example, in some embodiments, the edge pressing elastic member includes an edge pressing rod sleeved with a compression spring.

[0121] Thus, when the silicon rod is cut using the first silicon rod cutting device, the silicon rod to be cut is carried by the first silicon rod transfer device, and the chuck driving mechanism in the first edge anti-chipping device drives at least one of the at least one pair of end face chucks to move along the clamping direction, so that at least one pair of end face chucks clamps both ends of the silicon rod. The edge pressing member in the end face chuck presses against the edge to be cut in the silicon rod, which can ensure that the edge to be cut in the silicon rod remains stable during the first cutting operation. This can prevent the edge from falling off or the edge from shifting from the silicon rod body when the first wire saw in the first wire cutting unit passes through the silicon rod to completely remove it, thus avoiding chipping or other phenomena.

[0122] In an embodiment, for any one of at least a pair of end face chucks, the end face chuck includes a silicon rod pressing member, an edge pressing member, and an edge clamping reinforcement member. The silicon rod pressing member is used to press the main body of the silicon rod, the edge pressing member is used to press the edge to be cut from the silicon rod, and the edge clamping reinforcement member is used to apply additional clamping force to the edge. In this application, a silicon rod with a circular cross-section is squared into a square silicon rod with a roughly rectangular cross-section after a squaring operation. The main body of the silicon rod refers to at least the portion containing the square silicon rod; that is, the main body of the silicon rod is relative to the edge, and the main body of the silicon rod is the portion containing the square silicon rod. The main body of the silicon rod varies in different squaring operations. In the following description, the main body of the silicon rod is simply referred to as the silicon rod body.

[0123] Please see Figure 7 Displayed as Figure 6 A schematic diagram of the structure of the edge clamp in one embodiment. Figure 6 and Figure 7 In the embodiment shown, the end face chuck includes a clamping base 1624, a silicon rod pressing member 1625 and an edge pressing member 1626 disposed on the clamping base 1624, and an edge clamping reinforcement member 1627 that moves forward and backward relative to the clamping base 1624 along the clamping direction.

[0124] The clamping base 1624 serves as the main body of the end face chuck, providing a foundation for the silicon ingot pressing member 1625, the edge pressing member 1626, and the edge clamping reinforcement 1627. In some embodiments, the clamping base may be, for example, a clamping substrate, the size of which is adapted to the end face of the silicon ingot and the edge to be cut; that is, the clamping substrate must cover at least a portion of the silicon ingot body and a portion of the edge. The clamping substrate must cover a portion of the silicon ingot body so that the silicon ingot pressing member disposed thereon can act on the silicon ingot body. The clamping substrate must also cover a portion of the edge so that the edge pressing member and the edge clamping reinforcement disposed thereon can act on the edge.

[0125] In such Figure 7 In the illustrated embodiment, in the end face chuck, the silicon rod pressing member 1625 includes a silicon rod pressing screw disposed on the clamping substrate 1624, and the edge pressing member 1626 includes an edge pressing screw disposed on the clamping substrate 1624. The number of silicon rod pressing screws and the number of edge pressing screws can be one or more. In practical applications, the silicon rod pressing screw is used to press the silicon rod body, and the edge pressing screw is used to press the edge to be cut. With the silicon rod pressing screw pressing the silicon rod body and the edge pressing screw pressing the edge to be cut, relative stability between the silicon rod body and the edge can be ensured. This avoids edge chipping or other phenomena that occur when the wire saw in the wire cutting unit passes through the silicon rod to completely remove it, causing the edge to fall off or the edge to shift from the silicon rod body.

[0126] It is easy to see that in some cases, the end face of the silicon rod is not an ideal flat surface, and one of the silicon rod pressing component and the edge pressing component may not be able to effectively abut and press against the corresponding silicon rod body or edge.

[0127] To ensure that the silicon rod pressing elements and edge pressing elements arranged on the clamping substrate can adapt to the end face of the silicon rod to achieve effective pressing, in some embodiments, the end face chuck also includes an offset fine-tuning structure for adjusting the position of the clamping substrate. Using the offset fine-tuning structure, the position of the clamping substrate can be locally adjusted, thereby changing the position of the silicon rod pressing elements and edge pressing elements arranged on the clamping substrate. In such cases... Figure 7 In the embodiment shown, the end face chuck also includes a biasing fine-tuning structure for adjusting the clamping substrate 1624. The biasing fine-tuning structure can be used to locally adjust the position of the clamping substrate 1624, thereby changing the position of the silicon rod pressing screw and the edge pressing screw arranged on the clamping substrate 1624.

[0128] In some embodiments, the biasing fine-tuning structure employs a ball-head structure or a similar structure, and the substrate is clamped via the ball-head structure. For example... Figure 7As shown, the clamping base 1624 is arranged on the mounting structure by a ball head structure 1629. In this way, the clamping base 1624 can be fine-tuned by the ball head structure 1629 relative to the mounting structure, and the position of the clamping base 1624, the silicon rod pressing screw 1625 and the edge pressing screw 1626 arranged thereon can be changed, so that the end face of the silicon rod can be adapted, even if the end face of the silicon rod is not flat to a certain extent. In some embodiments, the ball head structure is a spherical steel ball, which is embedded in a receiving cavity and exposes a small part in contact with the clamping base. In some embodiments, the ball head or the semi-ball head is connected to the clamping base by a connecting rod, and the ball head or the semi-ball head is embedded in a receiving cavity.

[0129] In some embodiments, the biasing fine-tuning structure adopts a hinged structure, and the clamping base is arranged by the hinged structure. For example, the clamping base is associated with the mounting structure by the hinged structure, and can be biased relative to the mounting structure to a certain extent.

[0130] In addition, in some embodiments, in the end face chuck, the silicon rod pressing member includes a silicon rod pressing elastic member arranged on the clamping base, and the edge pressing member includes an edge pressing elastic member arranged on the clamping base. For example, in some embodiments, the silicon rod pressing elastic member includes a silicon rod pressing rod sleeved with a compression spring, and the edge pressing elastic member includes an edge pressing rod sleeved with a compression spring. In some embodiments, the silicon rod pressing elastic member includes a silicon rod pressing block with a compression spring arranged at the rear end thereof, and the edge pressing elastic member includes an edge pressing block with a compression spring arranged at the rear end thereof.

[0131] In the end face chuck, the edge clamping reinforcing member is further included, which can be advanced and retreated relative to the clamping base along the clamping direction. When the edge clamping reinforcing member is advanced relative to the clamping base, the edge clamping reinforcing member can provide a strong clamping force to the corresponding edge. Generally, the clamping force applied to the edge by the edge clamping reinforcing member is greater than the pressing force applied to the silicon rod body by the silicon rod pressing member and the pressing force applied to the edge by the edge pressing member.

[0132] In some embodiments, the edge clamping reinforcing member includes a telescopic pressing rod or a telescopic pressing block which is controlled to advance and retreat relative to the clamping base. For example, the telescopic pressing rod or the telescopic pressing block is arranged in a receiving cavity of the clamping base, and the telescopic pressing rod or the telescopic pressing block is controlled to advance and retreat relative to the clamping base by a control mechanism arranged in the receiving cavity. Figure 7In the shown embodiment, the edge clamping reinforcement includes a retractable jack or a retractable block 1627 and a retractable drive source 1628, which drives the retractable jack or the retractable block 1627 to advance or retract relative to the clamping base plate 1624. In some embodiments, the clamping base plate 1624 is provided with a through hole, and the retractable drive source 1628 and the retractable jack or the retractable block 1627 are arranged on a mounting structure. The retractable drive source 1628 can drive the retractable jack or the retractable block 1627 to extend out of the clamping base plate 1624 and press against the corresponding edge, or drive the retractable jack or the retractable block 1627 to retract into the clamping base plate 1624. The retractable drive source may, for example, be a retractable pneumatic cylinder.

[0133] The end face chuck can still be varied in other embodiments. In some embodiments, the end face chuck includes a first clamping base and a second clamping base, wherein a silicon rod pressing member is arranged on the first clamping base, and an edge pressing member and an edge clamping reinforcement that advances or retracts relative to the second clamping base in the clamping direction are arranged on the second clamping base.

[0134] In some embodiments, the first clamping base may, for example, be a clamping base plate, which is sized to fit the end face of the silicon rod body, i.e., the first clamping base plate covers at least a portion of the silicon rod body, so that the silicon rod pressing member arranged thereon can act on the silicon rod body. The second clamping base may, for example, be a clamping base plate, which is sized to fit the end face of the edge to be cut, i.e., the first clamping base plate covers at least a portion of the edge, so that the edge pressing member arranged thereon can act on the edge.

[0135] In the end face chuck, the silicon rod pressing member includes a silicon rod pressing screw arranged on the first clamping base, and the number of the silicon rod pressing screw can be one or more. The edge pressing member includes an edge pressing screw arranged on the second clamping base, and the number of the edge pressing screw can be one or more. In actual application, the silicon rod pressing screw is used to press the silicon rod body, and the edge pressing screw is used to press the edge to be cut. In the condition that the silicon rod pressing screw presses the silicon rod body and the edge pressing screw presses the edge to be cut, the relative stability between the silicon rod body and the edge can be ensured, and the phenomenon of edge falling or edge and silicon rod body deviating to cause edge collapse can be avoided when the cutting wire saw in the wire cutting unit completely cuts off the silicon rod.

[0136] In some embodiments, the silicon rod pressing member comprises a silicon rod pressing elastic member arranged on the first clamping base, and the edge pressing member comprises an edge pressing elastic member arranged on the second clamping base. For example, in some embodiments, the silicon rod pressing elastic member comprises a silicon rod pressing rod sleeved with a compression spring, and the edge pressing elastic member comprises an edge pressing rod sleeved with a compression spring. In some embodiments, the silicon rod pressing elastic member comprises a silicon rod pressing block with a compression spring arranged at the rear end thereof, and the edge pressing elastic member comprises an edge pressing block with a compression spring arranged at the rear end thereof.

[0137] In the end face chuck, an edge clamping reinforcing member is further included, which is capable of advancing and retreating relative to the second clamping base along the clamping direction. When the edge clamping reinforcing member advances relative to the second clamping base, the edge clamping reinforcing member can provide a strong clamping force to the corresponding edge. Generally, the clamping force exerted on the edge by the edge clamping reinforcing member is greater than the pressing force exerted on the silicon rod body by the silicon rod pressing member and the pressing force exerted on the edge by the edge pressing member.

[0138] In some embodiments, the edge clamping reinforcing member comprises a telescopic pressing rod or a telescopic pressing block which is capable of being controlled to advance and retreat relative to the second clamping base. For example, the edge clamping reinforcing member comprises a telescopic pressing rod or a telescopic pressing block and a telescopic driving source, and the telescopic driving source drives the telescopic pressing rod or the telescopic pressing block to advance and retreat relative to the second clamping base. In some embodiments, a through hole is arranged on the second clamping base, and the telescopic driving source and the telescopic pressing rod or the telescopic pressing block are arranged on a mounting structure. The telescopic driving source can drive the telescopic pressing rod or the telescopic pressing block to protrude from the second clamping base and press against the corresponding edge, or to retract into the second clamping base. The telescopic driving source can be, for example, a telescopic pneumatic cylinder.

[0139] Thus, when the first cutting operation is performed on the silicon rod by the first silicon rod cutting device, the silicon rod to be cut is carried by the first silicon rod transfer device, at least one end face chuck of the at least one pair of end face chucks is driven by the chuck driving mechanism in the first edge skin anti-collapse device to move along the clamping direction, so that the at least one pair of end face chucks clamps the two end faces of the silicon rod, wherein the silicon rod pressing piece in the end face chuck presses on the main body of the silicon rod, the edge skin pressing piece in the end face chuck presses on the edge skin to be cut in the silicon rod, and the edge skin clamping reinforcing piece in the end face chuck is in a retracted state (in the retracted state, the edge skin clamping reinforcing piece is recessed in the clamping base, or protrudes from the clamping base but the protrusion height of the edge skin clamping reinforcing piece relative to the clamping base is also less than the protrusion height of the silicon rod pressing piece and the edge skin pressing piece relative to the clamping base), so that the edge skin and the main body of the silicon rod remain relatively stationary, and the phenomenon of edge skin falling or the edge skin and the main body of the silicon rod deviating to cause edge collapse and the like can be avoided when the cutting wire saw in the wire cutting unit completely cuts through the silicon rod to be cut. After the edge skin cutting is completed, the edge skin clamping reinforcing piece in the end face chuck is driven to protrude relative to the clamping base and press on the cut edge skin, and the clamping force of the edge skin clamping reinforcing piece on the edge skin is greater than the pressing force of the silicon rod pressing piece on the main body of the silicon rod and the pressing force of the edge skin pressing piece on the edge skin, at which time the at least one pair of end face chucks can be operated to move the cut edge skin.

[0140] In the present application, the first edge skin anti-collapse device can further include an edge skin clamp advancing and retreating mechanism for driving the edge skin clamp to advance and retreat along the advancing and retreating direction.

[0141] In the embodiment in which the end face chuck includes the clamping base and the edge skin pressing piece arranged on the clamping base, after the edge skin cutting is completed, the edge skin clamp is driven by the edge skin clamp advancing and retreating mechanism to retreat along the advancing and retreating direction, and the pressing force of the pressing piece on the edge skin can drive the clamped edge skin to separate from the main body of the silicon rod.

[0142] In the embodiment in which the end face chuck includes the clamping base, the silicon rod pressing piece and the edge skin pressing piece arranged on the clamping base, and the edge skin clamping reinforcing piece that advances and retreats relative to the clamping base along the clamping direction, after the edge skin cutting is completed, the edge skin clamping reinforcing piece in the end face chuck is driven to protrude relative to the clamping base and press on the cut edge skin, at which time the edge skin clamp is driven by the edge skin clamp advancing and retreating mechanism to retreat along the advancing and retreating direction, and the clamping force of the edge skin clamping reinforcing piece on the edge skin is greater than the pressing force of the silicon rod pressing piece on the main body of the silicon rod and the pressing force of the edge skin pressing piece on the edge skin, so as to drive the clamped edge skin to separate from the main body of the silicon rod.

[0143] In some embodiments, the edge skin clamp advancing and retreating mechanism includes: a clamp advancing and retreating guide rail arranged along the advancing and retreating direction; and an edge skin clamp advancing and retreating unit for driving the edge skin clamp to move along the clamp advancing and retreating guide rail. Figure 6In the illustrated embodiment, the edge clamp advancing / retracting mechanism 163 includes an advancing / retracting rail 1631 and an edge clamp advancing / retracting unit.

[0144] In some embodiments, the edge clamp advancing / retracting unit includes a clamp seat telescopic rod and a clamp seat telescopic cylinder, the clamp seat telescopic rod is arranged along the advancing / retracting direction and is associated with the clamp seat of the edge clamp, and the clamp seat telescopic cylinder is associated with the clamp seat telescopic rod. Figure 6 In the illustrated embodiment, the edge clamp advancing / retracting unit includes a clamp seat telescopic rod 1633 and a clamp seat telescopic cylinder 1635, wherein the clamp seat telescopic rod 1633 is arranged along the advancing / retracting direction and is associated with the clamp seat 1621 of the edge clamp, and the clamp seat telescopic cylinder 1635 is arranged on a mounting structure and is associated with the clamp seat telescopic rod 1633. In some embodiments, the clamp seat telescopic rod is driven to extend by the clamp seat telescopic cylinder 1635, the edge clamp 162 is driven to move towards the first silicon rod transfer device, so that the edge clamp 162 can clamp the end face of the silicon rod. In some embodiments, the clamp seat telescopic rod is driven to retract by the clamp seat telescopic cylinder 1635, the edge clamp 162 is driven to move away from the first silicon rod transfer device, so that the edge clamp 162 drives the clamped edge to exit and separate from the main body of the silicon rod.

[0145] In some embodiments, the edge clamp advancing / retracting unit includes an edge clamp advancing / retracting mechanism including a clamp seat rack arranged along the advancing / retracting direction and associated with the clamp seat of the edge clamp, a clamp seat gear meshing with the clamp seat rack, and a gear driving source associated with the clamp seat gear for driving the clamp seat gear to rotate to move the meshing edge clamp along the advancing / retracting direction. The gear driving source may, for example, be a servo motor. In actual application, the servo motor as the gear driving source is driven to rotate forward, the associated clamp seat gear is driven to rotate forward, so that the edge clamp associated with the clamp seat gear moves on the meshing clamp seat rack towards the silicon rod transfer device, so that the edge clamp can clamp the end face of the silicon rod. Conversely, the servo motor as the gear driving source is driven to rotate reversely, the associated clamp seat gear is driven to rotate reversely, so that the edge clamp associated with the clamp seat gear moves on the meshing clamp seat rack away from the silicon rod transfer device, so that the edge clamp drives the clamped edge to exit and separate from the main body of the silicon rod.

[0146] In some embodiments, the edge clamp advancing and retracting unit comprises a retracting screw rod and a screw rod driving source, the retracting screw rod is arranged along the advancing and retracting direction and is associated with the clamp base of the edge clamp, and the screw rod driving source is associated with the retracting screw rod. The screw rod driving source may, for example, be a servo motor. In actual application, the servo motor as the screw rod driving source is rotated forward to drive the retracting screw rod to rotate forward, so that the edge clamp associated with the retracting screw rod moves towards the silicon rod transferring device, so that the edge clamp can clamp the end face of the silicon rod. Conversely, the servo motor as the screw rod driving source is rotated reversely to drive the retracting screw rod to rotate reversely, so that the edge clamp associated with the retracting screw rod moves away from the silicon rod transferring device, so that the edge clamp drives the clamped edge to retract to separate from the main body of the silicon rod.

[0147] In the present application, the first edge collapse-preventing device can further comprise a clamp lifting mechanism for driving the edge clamp to move up and down along the vertical direction. In some embodiments, the edge clamp is driven by the clamp lifting mechanism to move up or down along the vertical direction to adapt to the size of the silicon rod carried by the silicon rod transferring device. For example, if the size of the silicon rod to be cut is large, the edge clamp is driven by the clamp lifting mechanism to move up along the vertical direction, and if the size of the silicon rod to be cut is small, the edge clamp is driven by the clamp lifting mechanism to move down along the vertical direction.

[0148] In some embodiments, the clamp lifting mechanism comprises a clamp lifting guide rail and a clamp lifting unit, wherein the clamp lifting guide rail is arranged along the vertical direction. The clamp lifting unit is used to drive the edge clamp to move up and down along the clamp lifting guide rail. Figure 6 In the illustrated embodiment, the clamp lifting mechanism 164 comprises a clamp lifting guide rail 1641 and a clamp lifting unit.

[0149] In some embodiments, the edge clamp lifting unit comprises a lifting screw rod and a screw rod driving source, the lifting screw rod is arranged along the vertical direction and is associated with the clamp base of the edge clamp, and the screw rod driving source is associated with the lifting screw rod. The screw rod driving source may, for example, be a servo motor. In actual application, the servo motor as the screw rod driving source is rotated forward to drive the lifting screw rod to rotate forward, so that the edge clamp associated with the lifting screw rod moves up. Conversely, the servo motor as the screw rod driving source is rotated reversely to drive the lifting screw rod to rotate reversely, so that the edge clamp associated with the lifting screw rod moves down. Figure 6 In the illustrated embodiment, the edge clamp lifting unit comprises a lifting screw rod 1643 and a screw rod driving source, wherein the lifting screw rod 1643 is arranged along the vertical direction and is associated with the mounting structure of the clamp base of the edge clamp, and the screw rod driving source is associated with the lifting screw rod 1643. The screw rod driving source may, for example, be a servo motor. In actual application, the servo motor as the screw rod driving source is rotated forward to drive the lifting screw rod 1643 to rotate forward, so that the edge clamp associated with the lifting screw rod 1643 moves up. Conversely, the servo motor as the screw rod driving source is rotated reversely to drive the lifting screw rod 1643 to rotate reversely, so that the edge clamp associated with the lifting screw rod 1643 moves down.

[0150] In some embodiments, the clamp lifting unit comprises a lifting rack, a lifting gear, and a gear driving source, wherein the lifting rack is arranged along the vertical direction and associated with the clamp seat of the edge clamp, the lifting gear is engaged with the lifting rack, and the gear driving source is associated with the lifting gear for driving the lifting gear to rotate to make the engaged edge clamp move up and down along the vertical direction. The gear driving source may, for example, be a servo motor. In actual application, the forward rotation of the servo motor as the gear driving source drives the associated lifting gear to rotate forward, so that the edge clamp associated with the clamp seat gear moves up on the engaged clamp seat rack. Conversely, the reverse rotation of the servo motor as the gear driving source drives the associated clamp seat gear to rotate reversely, so that the edge clamp associated with the clamp seat gear moves down on the engaged clamp seat rack.

[0151] Thus, when the first edge collapse prevention device 16 shown in Figure 6 is applied, the silicon rod is placed horizontally on the silicon rod carrying platform of the silicon rod transfer device; the edge clamp 162 is driven by the clamp lifting mechanism 164 in the first edge collapse prevention device 16 to move up and down along the vertical direction to adjust the position; the edge clamp is driven by the edge clamp advancing and retreating mechanism 163 in the first edge collapse prevention device 16 to advance along the advancing and retreating direction and approach the silicon rod; at least one end face clamp in the at least one pair of end face clamps is driven by the clamp driving mechanism 162 in the first edge collapse prevention device 16 to move along the clamping direction until the silicon rod pressing piece on the end face clamp presses on the main body of the silicon rod and the edge pressing piece on the end face clamp presses on the edge to be cut (for details, see the state diagram shown in Figure 8 ). Then, the silicon rod is cut by the silicon rod cutting device to form the main body of the silicon rod and the edge (for details, see the state diagram shown in Figure 9 ). After the edge 101 is cut, the edge clamping reinforcement in the end face clamp is driven to protrude relative to the clamping base and press on the cut edge 101, at this time, the edge clamp 162 is driven by the edge clamp advancing and retreating mechanism 163 to retreat along the advancing and retreating direction, and the clamping force exerted on the edge by the edge clamping reinforcement is greater than the pressing force exerted on the main body of the silicon rod by the silicon rod pressing piece and the pressing force exerted on the edge by the edge pressing piece, so that the clamped edge 101 can be separated from the main body of the silicon rod (for details, see the state diagram shown in Figure 10 ).

[0152] In this application, the first edge collapse prevention device further comprises an edge unloading and conveying mechanism connected with the edge clamp advancing and retreating mechanism.

[0153] In some embodiments, the edge unloading and conveying mechanism can comprise an edge carrying structure and a conveying driving mechanism. As shown in Figure 5 , the edge unloading mechanism device can comprise an edge carrying structure 167 and a conveying driving mechanism 168.

[0154] The edge skin carrying structure 167 is used to carry the edge skin. Before, the edge skin clamped by the edge skin clamp is withdrawn along the advancing and retreating direction by the advancing and retreating mechanism of the edge skin clamp to drive the edge skin to separate from the silicon rod body, and then the chuck driving mechanism in the edge skin clamp drives the chuck to move to release the clamped edge skin and make it fall on the edge skin carrying structure. In some embodiments, the edge skin carrying structure may, for example, be an edge skin placing groove. The edge skin placing groove may, for example, be a U-shaped structure.

[0155] In some embodiments, the conveying driving mechanism is used to drive the edge skin carrying structure to move along the transfer direction to move between the first loading and unloading position and the first cutting position. In the embodiment as shown in FIG. 6, the edge skin conveying mechanism includes two edge skin carrying structures 167 and a conveying driving mechanism 168 associated with the two edge skin carrying structures 167 for driving the two edge skin carrying structures 167 to move between the first loading and unloading position and the first cutting position. In some embodiments, the conveying driving mechanism 168 may, for example, be a chain conveying mechanism. Of course, in the edge skin conveying mechanism, one conveying driving mechanism can be configured for each edge skin carrying device to drive the corresponding edge skin carrying structure by the conveying driving mechanism. Taking the chain conveying mechanism as an example, the chain conveying mechanism includes a ring chain, a chain driving source, and a connecting member, wherein the ring chain is a closed loop chain, which is arranged around a plurality of movable gears to form a predetermined shape, for example, an inverted triangle, a rectangle, or a trapezoid, etc., the edge skin carrying structure is associated with the ring chain through the connecting member, the chain driving source may, for example, be a servo motor, the servo motor is associated with one of the movable gears, for example, the output shaft of the servo motor is connected with the gear shaft of the movable gear, when the ring chain is driven to rotate by the servo motor, the edge skin carrying structure and the edge skin carried thereby can be driven to move along the transfer direction by the connecting member. In actual application, the servo motor works to drive the associated movable gear to rotate forward (or reversely), the forward rotating (or reversely rotating) movable gear drives the engaged ring chain to move forward (or reversely), the forward moving (or reversely moving) ring chain can drive the edge skin carrying structure to move from the first loading and unloading position to the first cutting position through the connecting member; conversely, the servo motor works to drive the associated movable gear to rotate reversely (or forward), the reversely rotating (or forward rotating) movable gear drives the engaged ring chain to move reversely (or forward), the reversely moving (or forward moving) ring chain can drive the edge skin carrying structure and the edge skin carried thereby to move from the first cutting position to the first loading and unloading position through the connecting member. Figure 5

[0156] ​In some embodiments, a conveying driving mechanism is used to convey the flash on the flash carrying structure outwards. In some embodiments, the conveying driving mechanism is a chain conveying mechanism or a transmission belt mechanism. Taking the chain conveying mechanism as an example, the chain conveying mechanism comprises a ring chain, a chain driving source, and a pushing element. The ring chain is a closed loop chain, which is arranged around a plurality of movable gears to form a preset shape, such as an inverted triangle, a rectangle, or a trapezoid. The chain driving source can be, for example, a servo motor, which is associated with one of the movable gears, for example, the output shaft of the servo motor is connected with the gear shaft of the movable gear. The pushing element can be fixedly arranged on the ring chain. When the ring chain is driven to rotate by the servo motor, the pushing element on the ring chain will interfere with the flash carried by the flash carrying structure and push the flash. In actual application, the servo motor works to drive the associated movable gear to rotate forward, and the forward rotating movable gear drives the meshed ring chain to move forward. The pushing element on the forward moving ring chain will contact the flash and push the flash to move relative to the flash carrying structure until the flash is unloaded. The pushing element can be, for example, a lever or a protrusion.

[0157] In this application, the flash unloading and conveying mechanism further comprises a flash overturning mechanism for driving the flash carrying structure to overturn. Each flash carrying structure is provided with a flash overturning mechanism, which can drive the corresponding flash carrying structure and the flash carried thereby to overturn. In some embodiments, please refer to Figure 11 and Figure 12 In the embodiments shown in Figure 11 and Figure 12 , the flash overturning mechanism comprises a pivot shaft and a telescopic assembly, which comprises a telescopic rod 1691 and a telescopic cylinder 1692. The flash carrying structure 167 is pivotally installed by the pivot shaft. One end of the telescopic rod 1691 is associated with the corresponding flash carrying structure 167, and the other end of the telescopic rod 1691 is associated with the telescopic cylinder 1692. In actual application, the telescopic cylinder 1692 drives the telescopic rod 1691 to retract, and the flash carrying structure 167 is pulled by the telescopic rod 1691 to overturn towards the vertical direction and be arranged vertically by the pivot shaft. The telescopic cylinder 1692 drives the telescopic rod 1691 to extend, and the flash carrying structure 167 is pushed by the telescopic rod 1691 to overturn away from the vertical direction and be arranged horizontally or obliquely, so that the flash carried by the flash carrying structure 167 is arranged horizontally or obliquely, which facilitates subsequent unloading of the flash.

[0158] In the first silicon rod cutting device of the cutting-grinding integrated device for small-size rectangular rods of the application, the silicon rod to be cut is placed in a horizontal manner on the first silicon rod transfer device at the first loading and unloading position; the first silicon rod carrying device and the silicon rod carried thereby are driven to move from the first loading and unloading position to the first cutting position along the transfer direction, the edge skin clamp is driven by the edge skin clamp advancing and retreating mechanism to advance to the silicon rod along the advancing and retreating direction, the edge skin clamp of the first edge skin anti-collapse device is driven to clamp the silicon rod to be cut, at this time, the two first cutting wire saws arranged in parallel in the first silicon rod cutting device are located between the front edge skin clamp and the silicon rod; the first silicon rod transfer device carrying the silicon rod is driven to advance along the transfer direction towards the first cutting position, the first silicon rod cutting device and the first silicon rod transfer device are relatively moved along the transfer direction to perform the first cutting operation on the silicon rod with a circular cross section by the two first cutting wire saws arranged in parallel in the first silicon rod cutting device, so that the silicon rod is cut to form two parallel first side cut surfaces after the two edge skins are cut off; the edge skin clamped by the edge skin clamp is driven to retreat along the advancing and retreating direction by the edge skin clamp advancing and retreating mechanism in the first edge skin anti-collapse device, so as to drive the clamped edge skin to separate from the silicon rod body; the edge skin clamp and the edge skin clamped thereby are lowered by the clamp lifting mechanism, the edge skin clamp is released, the edge skin is released onto the edge skin carrying structure, the edge skin carrying structure is driven by the conveying driving mechanism to move from the first cutting position to the first loading and unloading position along the transfer direction, the edge skin carrying structure and the edge skin carried thereby are driven by the edge skin turnover mechanism to turn over, so as to unload the turned-over edge skin; the first silicon rod carrying device and the silicon rod body carried thereby are driven to move from the first cutting position to the first loading and unloading position along the transfer direction, and the first cutting operation of the silicon rod is completed.

[0159] The second cutting station includes a second loading and unloading position and a second cutting position, and a second silicon rod transfer device is arranged on the second cutting station, which is used to carry the silicon rod with two first side cut surfaces to move along the transfer direction between the second loading and unloading position and the second cutting position. The second silicon rod cutting device is arranged at the second cutting position, and is provided with at least one second cutting wire saw and at least one third cutting wire saw. The at least one second cutting wire saw and the at least one third cutting wire saw are located in the vertical plane and arranged along the vertical direction or arranged at an angle with the vertical direction. The second silicon rod cutting device and the second silicon rod transfer device are relatively moved along the transfer direction to perform the second cutting operation on the silicon rod with two first side cut surfaces by the second cutting wire saw and the third cutting wire saw, so as to obtain at least two half rods with a rectangular cross section.

[0160] The second silicon rod transfer device is used to carry the silicon rod along a transfer direction between the second loading and unloading area and the second cutting area of the second cutting station, wherein the silicon rod (having two first side surfaces) is horizontally placed on the second silicon rod transfer device and the axial line of the silicon rod is consistent with the transfer direction, and the transfer direction is consistent with the first direction.

[0161] In some embodiments, the second silicon rod transfer device can include a second transfer channel, a second carrying platform, and a second transfer driving mechanism. The second transfer channel is arranged along the transfer direction. In some implementations, the second transfer channel includes a second transfer rail. The length of the second transfer channel in the transfer direction is greater than the length of the silicon rod to be cut. The second carrying platform is arranged on the second transfer channel and is used to carry the silicon rod. After the silicon rod is carried by the second carrying platform, the silicon rod is horizontally placed, i.e., the axial line of the silicon rod is consistent with the transfer direction (i.e., the first direction). The second transfer driving mechanism is used to drive the second carrying platform and the silicon rod carried thereby to move along the transfer direction on the second transfer channel.

[0162] In some embodiments, the second carrying platform is arranged on the second transfer rail of the second transfer channel, and the second carrying platform is used to carry the silicon rod and is in contact with the first side surface of the silicon rod. The second transfer driving mechanism is used to drive the second carrying platform and the silicon rod carried thereby to move along the transfer direction on the second transfer channel.

[0163] In some embodiments, the second transfer driving mechanism includes a second platform transfer rail arranged along the transfer direction, and a second transfer driving unit used to drive the second carrying platform to move along the second platform transfer rail.

[0164] In implementations, the second transfer driving unit includes a transfer rack rail, a transfer gear, and a gear driving source. The transfer rack rail is arranged along the transfer direction. The transfer gear is associated with the second carrying platform and is in mesh with the transfer rack rail. The gear driving source is used to drive the transfer gear to rotate so as to drive the associated second carrying platform to move along the transfer direction. The gear driving source can be, for example, a servo motor.

[0165] In some implementations, the second transfer driving unit includes a transfer screw rod and a screw rod driving source. The transfer screw rod is arranged along the transfer direction and is associated with the second carrying platform. The screw rod driving source is used to drive the transfer screw rod to rotate so as to drive the associated second carrying platform to move along the transfer direction. The screw rod driving source can be, for example, a servo motor.

[0166] The second silicon rod cutting device is arranged on the second cutting station and is used to perform a second cutting operation on the silicon rod at the second cutting area of the second cutting station by the second silicon rod transfer device, so that the silicon rod is cut into at least two half rods with a rectangular cross section by forming two parallel second side surfaces and at least one split surface between the two second side surfaces.

[0167] The second silicon rod cutting device comprises at least one second wire cutting unit, the second wire cutting unit comprises a plurality of second cutting wheels and a second cutting wire, the second cutting wire is sequentially wound around the plurality of second cutting wheels to form at least one second cutting wire saw, the second cutting wire saw is used to perform a second cutting operation on the silicon rod carried by the second silicon rod transfer device through relative movement between the second wire cutting unit and the second cutting station and the second silicon rod transfer device and the silicon rod carried thereby. In some embodiments, the second cutting wire is wound in a ring shape with the head connected to the tail between each second cutting wheel. At this time, the second cutting wire can also be referred to as a closed loop cutting wire.

[0168] As shown in Figure 1 , the second silicon rod cutting device 15 comprises two second wire cutting units 151 arranged in parallel, each second wire cutting unit comprises a plurality of second cutting wheels and a second cutting wire, the second cutting wire is wound around the plurality of second cutting wheels to form at least one second cutting wire saw, and the second cutting wire saw is arranged along the vertical direction or at an angle to the vertical direction.

[0169] Please refer to Figure 13 , which shows a structural schematic diagram of the second silicon rod cutting device in an embodiment. As shown in Figure 13 , the second silicon rod cutting device 15 comprises two second wire cutting units 151. The second wire cutting unit 151 comprises a plurality of second cutting wheels 152 and a second cutting wire 154, the second cutting wire is wound around the plurality of second cutting wheels 152 to form at least one second cutting wire saw 155, and the second cutting wire saw 155 is arranged along the vertical direction or at an angle to the vertical direction. In addition, the second wire cutting unit 151 can also comprise a second cutting mounting structure 150, and the plurality of second cutting wheels 152 are arranged on the second cutting mounting structure 150.

[0170] In some embodiments, the plurality of second cutting wheels in the second wire cutting unit are connected to the second cutting mounting structure, or the plurality of second cutting wheels are arranged on the second cutting mounting structure through a support, a connecting plate or a mounting frame. The second cutting mounting structure serves as a carrier for associating the plurality of second cutting wheels in the second wire cutting unit with the second cutting frame or the second cutting seat. The specific form of the second cutting mounting structure can be a beam body, a plate frame, a support, etc., which is not limited in the present application.

[0171] In the small-size rectangular rod cutting and grinding integrated device of the present application, the second cutting wire saw in the second wire cutting unit of the second silicon rod cutting device is arranged along the vertical direction or at an angle to the vertical direction.

[0172] In the second wire cutting unit, at least one second wire slot for winding the second cutting wire is provided in the second cutting wheel, and the second wire slot can define the position of the second cutting wire to control the cutting accuracy. Any second wire saw is formed after the second cutting wire is wound around the two oppositely arranged second cutting wheels, and the positions of the two second cutting wheels and the positional relationship between the two second cutting wheels can be used to determine the direction of the second wire saw.

[0173] As shown in Figure 13 In some embodiments, the second cutting installation structure 150 is a rectangular frame as a whole, and the second wire cutting unit includes a plurality of second cutting wheels 152, for example, four second cutting wheels 152, which are respectively arranged near the four corners of the second cutting installation structure 150, and the wheel surface of each second cutting wheel 152 is located in the vertical plane (the vertical plane is composed of the first direction and the third direction), wherein two second cutting wheels 152 are arranged in front (relatively closer to the second loading and unloading area) and in parallel, and the other two second cutting wheels 152 are arranged in back (relatively farther away from the second loading and unloading area) and in parallel, and the second cutting wire 154 is wound around the four second cutting wheels 152 to form at least one second wire saw 155 (for example, the second wire saw 155 is formed between the two second cutting wheels 152 arranged in front and in parallel), and the second wire saw 155 is arranged along the third direction (i.e., the vertical direction). In addition, in order to enable the second wire saw 155 to effectively cut the silicon rod, the second wire saw 155 interferes with the silicon rod in the vertical direction.

[0174] In some embodiments, the second cutting wire is wound between each second cutting wheel in a head-to-tail manner to form a ring-shaped cutting wire (which can also be referred to as a closed-loop cutting wire). Figure 13 In the embodiment shown in

[0175] The plurality of second cutting wheels in the second wire cutting unit are wound by a ring-shaped cutting wire. In this example, the second silicon rod cutting device can dispense with the wire storage drum. The ring-shaped cutting wire can be driven by the cutting wire driving device to maintain high-speed operation, and at the same time, the ring-shaped cutting wire can run in the same running direction during the cutting operation. In this way, the second silicon rod cutting device can achieve high-precision second cutting operation, avoiding the problems of the cutting surface having ripples and the like caused by the running direction change or the running speed of the cutting wire in the existing cutting method; at the same time, the ring-shaped cutting wire can effectively reduce the total length of the cutting wire required by the second wire cutting unit, thereby reducing the production cost.

[0176] In some embodiments, the cutting wire drive device is a motor with a power output shaft connected to the second cutting wheel. Thus, the second cutting wire can be driven by the wound second cutting wheel to run along the winding direction. Of course, in specific implementations, the cutting wire drive device can also be other drive sources such as a hydraulic motor, as long as it drives the second cutting wire; this application does not impose any limitations.

[0177] The second wire cutting unit in this application may further include a second transition wheel, which is used to reverse or guide the second cutting line, or, alternatively, to adjust the tension of the second cutting line. The number of second transition wheels may be one or more, depending on the layout requirements.

[0178] The second transition wheel guides and pulls the second cutting wire while simultaneously acting as a tensioning wheel to adjust the tension of the second cutting wire. The tensioning wheel is used to adjust the tension of the second cutting wire, which can reduce the probability of wire breakage and thus reduce material consumption.

[0179] like Figure 13 As shown, in the second wire cutting unit, the second cutting mounting structure 150 is a rectangular frame. Each second wire cutting unit 151 includes multiple second cutting wheels 152 and multiple second transition wheels 153. For example, two second cutting wheels 152 and two second transition wheels 153 are respectively located near the four corners of the second cutting mounting structure 150. The wheel surfaces of the two second cutting wheels 152 and the two second transition wheels 153 are located in the vertical plane. The two second cutting wheels 152 are arranged in front and parallel vertically, and the two second transition wheels 153 are arranged in the back and parallel vertically. The second cutting line 154 is wound around the two second cutting wheels 152 and the two second transition wheels 153 to form at least one second cutting wire saw 155 (for example, a second cutting wire saw 155 is formed between the two second cutting wheels 152). The at least one second cutting wire saw 155 is arranged vertically.

[0180] As before, the second cutting line 154 is wound around a plurality of second cutting wheels 152 or a plurality of second cutting wheels 152 and a plurality of second transition wheels 153 to form a second cutting line saw 155 between the two preceding second cutting wheels 152. Therefore, to adjust the line length of the second cutting line saw 155, the spacing between the two second cutting wheels 152 can be adjusted, which can be achieved by changing the position of at least one of the two second cutting wheels 152.

[0181] The second wire saw is arranged in the vertical plane and along the vertical direction or at an angle with the vertical direction, and the silicon rod carried by the second silicon rod transfer device at the corresponding second cutting station is horizontally placed (the axis of the silicon rod is arranged along the transfer direction), so that the length of the second wire saw is adapted to the size of the end surface of the silicon rod, for example, the length of the second wire saw is greater than or equal to the diameter of the silicon rod or the chord length at the position to be cut of the silicon rod, in order to realize the cutting of the silicon rod.

[0182] The direction of the second cutting wheel surface has a corresponding relationship with the direction of the second wire saw, and it is understood that the second cutting wheel surface is parallel to the plane in which any second wire groove of the second cutting wheel is located. In order to control the cutting accuracy and the stability of the cutting process, the second wire saw should be located in the plane in which the second wire groove for winding the second wire is located. At the same time, during the cutting process, the force direction of the silicon rod to the second wire should be parallel to the wire groove, that is, the cutting wheel surface is parallel to the cutting direction, and the cutting direction in the second cutting operation is the direction of the axis of the silicon rod, that is, the transfer direction (i.e. the first direction X-axis).

[0183] The second silicon rod cutting device includes two second wire cutting units arranged in parallel, each of which has a second wire saw, so that the two second wire cutting units form two parallel wire saws. In the embodiment as shown in Figure 13 The second silicon rod cutting device includes two second wire cutting units arranged in parallel along the second direction, each of which has a second wire saw, and the second wire saw is arranged along the vertical direction, so that the two second wire saws belonging to the two second wire cutting units are both arranged along the vertical direction.

[0184] In fact, the second wire saw can have other variations. In some embodiments, the second wire saw is arranged vertically, but it is not limited thereto. In other embodiments, the second wire saw can be arranged at an angle of less than or equal to 10 degrees (≤10°), or less than or equal to 5 degrees (≤5°), or less than or equal to 3 degrees (≤3°) with respect to the vertical plane formed by the first direction and the third direction. That is, the second wire saw can be arranged in the vertical plane and at an angle of less than or equal to 10 degrees (≤10°), or less than or equal to 5 degrees (≤5°), or less than or equal to 3 degrees (≤3°) with respect to the third direction (i.e., the vertical direction). The angle is not limited to an integer angle, but can be any angle within a limited range, such as 0.09°, 1.3°, 2.5°, 3°, etc. In some embodiments, the two second cutting wheels arranged above and below to form the second wire saw, the upper second cutting wheel is ahead in the first direction and the lower second cutting wheel is behind in the first direction, and the second wire saw formed thereby can form a positive angle with respect to the vertical direction. In some embodiments, the two second cutting wheels arranged above and below to form the second wire saw, the upper second cutting wheel is behind in the first direction and the lower second cutting wheel is ahead in the first direction, and the second wire saw formed thereby can form a negative angle with respect to the vertical direction. The angle (including positive and negative angles) can be changed according to the cutting process requirements and the size specifications of the silicon rod, for example, by changing the position of one or both of the two second cutting wheels arranged above and below in relation to the second wire saw to adjust the angle of the angle.

[0185] In some embodiments, the second wire cutting unit further comprises a second tension adjusting mechanism. In wire cutting processing, the size of the cutting wire tension affects the yield and processing accuracy in cutting. The second tension adjusting mechanism detects the tension and adjusts the tension to make the tension of the second cutting wire reach a certain threshold value and remain a constant value or a certain range allowed by the constant value. In some embodiments, the second tension adjusting mechanism is associated with the second transition wheel 153 or the second cutting wheel. The second transition wheel 153 in the wire cutting unit functions as a tensioning wheel for adjusting the tension of the cutting wire while guiding and pulling the second cutting wire 154.

[0186] The tensioning wheel is used to adjust the tension of the cutting wire, which can reduce the probability of cutting wire breakage and reduce consumables. In cutting operations, the cutting wire plays a crucial role, but even the best cutting wire has limited extension and wear resistance. That is, the cutting wire will gradually thin out during continuous operation until it is eventually pulled apart. Therefore, current wire cutting equipment generally designs a cutting wire tension compensation mechanism to compensate for the extension of the cutting wire during round trip travel, and the tensioning wheel is one of the implementation means.

[0187] In some embodiments, the tension adjusting mechanism comprises at least a tension sensor, a servo motor and a screw rod. The tension sensor is arranged on the transition wheel and senses the tension value of the cutting wire on the transition wheel continuously, and sends a driving signal when the tension value is less than a preset value. The servo motor is electrically connected to the tension sensor and starts to work after receiving the driving signal sent by the tension sensor. One end of the screw rod is connected to the transition wheel, and the other end is connected to the servo motor, and the transition wheel is pulled to move unidirectionally when the servo motor works to adjust the tension of the cutting wire.

[0188] In some embodiments, the tension adjusting mechanism comprises a linkage assembly and a tension driving unit. The linkage assembly is associated with the transition wheel as the tension wheel and the tension driving unit. The linkage assembly is controlled by the tension driving unit, i.e. the linkage assembly is driven by the tension driving unit to drive the transition wheel to change the position to adjust the tension of the closed loop cutting wire.

[0189] Regarding the tension driving unit, in some implementations, the tension driving unit can comprise a counterweight part, which can be associated with the linkage assembly. For example, taking a certain transition wheel as a tension wheel as an example, when the tension of the closed loop cutting wire needs to be increased, the counterweight part is released, the counterweight part is lowered, and the linkage assembly drives the associated tension wheel to move under the action of the gravity of the counterweight part, thereby expanding the perimeter of the figure surrounded by each cutting wheel and the transition wheel, and increasing the tension of the closed loop cutting wire. When the tension of the closed loop cutting wire needs to be reduced, the counterweight part is lifted, and the linkage assembly drives the associated tension wheel to move in the opposite direction under the action of the gravity of the counterweight part, thereby expanding the perimeter of the figure surrounded by each cutting wheel and the transition wheel, and reducing the tension of the closed loop cutting wire.

[0190] The counterweight part can comprise counterweight blocks, wherein the number of counterweight blocks can vary according to the requirements of the closed loop cutting wire tension adjustment, for example, the number of counterweight blocks can be increased when the tension of the closed loop cutting wire needs to be increased, and the number of counterweight blocks can be reduced when the tension of the closed loop cutting wire needs to be reduced.

[0191] In some implementations, the counterweight part can comprise a locking mechanism for locking the counterweight part so that the counterweight part is stationary relative to the cutting installation structure, so that the counterweight part and the cutting installation structure are switched from the active state to the locked state. In some examples, the locking mechanism can be, for example, a latch.

[0192] The tension driving unit can still be changed in other ways, for example, in some implementations, the tension driving unit can comprise a tension cylinder.

[0193] In some embodiments, the second silicon rod cutting apparatus further comprises at least one second distance adjusting mechanism arranged at the at least one second wire cutting unit for driving the plurality of second cutting wheels in the second wire cutting unit to move along a direction perpendicular to the cutting wheel surface. The second distance adjusting mechanism can be used to switch the second cutting wire between different cutting slots of the second cutting wheels, or to adjust the position of the second wire saw relative to the silicon rod (or the processing specification).

[0194] In some implementations, the second wire cutting unit is taken as an example, the second wire cutting unit comprises a plurality of second cutting wheels and a plurality of second transition wheels. The carrier for carrying the plurality of second cutting wheels and the second transition wheels is, for example, a second cutting mounting structure. The second distance adjusting mechanism can be used to drive the second cutting mounting structure as a whole to move along the direction perpendicular to the cutting wheel surface. The second transition wheels and the second cutting wheels jointly follow the second cutting mounting structure to move along the direction perpendicular to the cutting wheel surface (i.e., the transposition direction or the second direction Y-axis). In this state, the plurality of second cutting wheels and the second transition wheels are relatively static, that is, the positional relationship between the second transition wheels and the second cutting wheels does not change. At this time, the second distance adjusting mechanism is used to adjust the cutting position of the at least one second wire saw relative to the silicon rod.

[0195] In some implementations, each second cutting wheel has at least two second cutting wire slots, different second cutting wire slots are parallel to each other, and different second cutting wire slots have a cutting offset in the direction perpendicular to the cutting wheel surface. When the second distance adjusting mechanism is used to drive the plurality of second cutting wheels in the second wire cutting unit to move relative to the second cutting mounting structure, the position of the second cutting wire wound on the second cutting wheel can be changed. In some implementations, the plurality of second cutting wheels in the second wire cutting unit can be connected to a support, wherein the support is movably arranged on the second cutting mounting structure and is driven by the second distance adjusting mechanism to move along the direction perpendicular to the cutting wheel surface.

[0196] When the at least one second pitch adjusting mechanism is used to realize the transformation of the second cutting line winding around the cutting line grooves of the plurality of second cutting wheels in the at least one second wire cutting unit, in actual scenarios, the second cutting line grooves respectively corresponding to the second cutting line before and after the transformation of the cutting line grooves can be determined in advance, for example, the position of the second cutting line before the transformation of the cutting line grooves is the second cutting line groove a1, and the second cutting line after the transformation of the cutting line grooves winds around the second cutting line groove a2. The displacement of the plurality of second cutting wheels in the second wire cutting unit driven by the second pitch adjusting mechanism is determined based on the cutting offset between the second cutting line groove a1 and the second cutting line groove a2, that is, the displacement is set as the cutting offset between the second cutting line groove a1 and the second cutting line groove a2, so as to realize the transformation of the second cutting line from the second cutting line groove a1 to the second cutting line groove a2. It should be noted that the direction in which the plurality of second cutting wheels in the second wire cutting unit is driven to move in the direction perpendicular to the surface of the second cutting wheel by the at least one second pitch adjusting mechanism is the direction in which the cutting line groove a2 points to the cutting line groove a1. After the transformation of the cutting line grooves, the cutting position of the second wire saw in space does not change, so that the step of further calibrating the positions of the second cutting wheels or other components can be omitted, and the silicon rod can be cut according to the preset cutting amount, so that the transformation process is simplified.

[0197] To further illustrate the implementation manner of the at least one second pitch adjusting mechanism for realizing the movement of the plurality of second cutting wheels in the second wire cutting unit in the direction perpendicular to the surface of the second cutting wheel, the present application discloses the following embodiments. When the number of the second wire cutting units in the second silicon rod cutting device is different, the specific form of the at least one second pitch adjusting mechanism can be changed accordingly.

[0198] In some embodiments, the second silicon rod cutting device includes a single wire cutting unit, where the single wire cutting unit is a second wire cutting unit. The second pitch adjusting mechanism includes a lead screw arranged in the direction perpendicular to the surface of the second cutting wheel and threadedly connected with the single wire cutting unit, and a lead screw driving source for driving the lead screw to rotate.

[0199] The single wire cutting unit in the second silicon rod cutting device includes a plurality of second cutting wheels, and the second cutting line winds around the plurality of second cutting wheels to form at least one second wire saw. The lead screw of the second pitch adjusting mechanism has a distal end and a proximal end. In a specific implementation manner, for example, the proximal end of the lead screw can be connected to the lead screw driving source and rotate under the driving of the lead screw driving source, and the distal end of the lead screw is threadedly connected to the second single wire cutting unit. Through the connection mode of the two ends of the lead screw, the lead screw can rotate based on the transmission of the lead screw driving source and convert the rotation of the lead screw into axial displacement by means of the thread connection. The axial displacement direction is the arrangement direction of the lead screw, that is, the direction perpendicular to the surface of the cutting wheel. By driving the lead screw to rotate through the lead screw driving source in the second pitch adjusting mechanism, the displacement of the single wire cutting unit in the direction perpendicular to the surface of the second cutting wheel can be realized. By changing the rotation direction of the lead screw driven to rotate, the advance or retreat of the second cutting wheel of the single wire cutting unit in the direction perpendicular to the surface of the second cutting wheel can be realized.

[0200] In some embodiments, the second silicon rod cutting device comprises a single wire cutting unit, and the single wire cutting unit is a second wire cutting unit. The second distance adjusting mechanism comprises: a telescopic member arranged along the normal direction of the second cutting wheel surface and associated with the single wire cutting unit; and a telescopic member driving source for driving the telescopic member to perform telescopic movement along the normal direction of the second cutting wheel surface. In this embodiment, the telescopic member can be arranged in the form of a rod body, and the extension direction of the rod body is the normal direction of the second cutting wheel surface. The telescopic member can perform telescopic movement along the extension direction under the driving of the telescopic member driving source. One end of the telescopic member can be connected to the telescopic member driving source, and the freely extendable end is associated with the single wire cutting unit. That is, the second cutting wheel of the single wire cutting unit can be moved in the normal direction of the second cutting wheel surface under the action of the telescopic member driving source. The telescopic member can be, for example, an electric telescopic rod, or a connecting rod connected to a pneumatic cylinder, which can serve as the telescopic member driving source. The application is not limited in this regard. The telescopic rod can be directly connected to the second cutting mounting structure of the single wire cutting unit, or indirectly connected to the second wire cutting unit through a support or a bearing. It should be understood that the extension or contraction of the telescopic member corresponds to the forward movement or backward movement of the single wire cutting unit along the normal direction of the second cutting wheel surface.

[0201] In the disclosed embodiments, the association can be achieved by one or more of clamping, screwing, bonding, and welding, for example. In the above embodiment, the telescopic rod can be associated with the second wire cutting unit by one or more of clamping, screwing, bonding, and welding. Of course, the association can be achieved in other ways, and the application is not limited in this regard. The purpose is to achieve transmission in the second direction.

[0202] In some embodiments, the second silicon rod cutting device comprises a single wire cutting unit, and the single wire cutting unit is a second wire cutting unit. The second distance adjusting mechanism comprises: a telescopic member arranged along the normal direction of the second cutting wheel surface and associated with the single wire cutting unit; and a telescopic member driving source for driving the telescopic member to perform telescopic movement along the normal direction of the second cutting wheel surface. In this embodiment, the telescopic member can be arranged in the form of a rod body, and the extension direction of the rod body is the normal direction of the second cutting wheel surface. The telescopic member can perform telescopic movement along the extension direction under the driving of the telescopic member driving source. One end of the telescopic member can be connected to the telescopic member driving source, and the freely extendable end is associated with the single wire cutting unit. That is, the second cutting wheel of the single wire cutting unit can be moved in the normal direction of the second cutting wheel surface under the action of the telescopic member driving source. The telescopic member can be, for example, an electric telescopic rod, or a connecting rod connected to a pneumatic cylinder, which can serve as the telescopic member driving source. The application is not limited in this regard. The telescopic rod can be directly connected to the second cutting mounting structure of the single wire cutting unit, or indirectly connected to the second wire cutting unit through a support or a bearing. It should be understood that the extension or contraction of the telescopic member corresponds to the forward movement or backward movement of the single wire cutting unit along the normal direction of the second cutting wheel surface.

[0203] In some embodiments, as Figure 13As shown, the second silicon rod cutting device includes two second wire cutting units arranged in parallel and opposite directions, at least one of the two second wire cutting units can be driven to move along the orthogonal direction of the second cutting wheel surface by at least one distance adjusting mechanism, for adjusting the wire cutting saw distance between the second cutting wire saws in the two second wire cutting units, or changing the cutting wire slot of the second cutting wire wound on the plurality of second cutting wheels in a certain second wire cutting unit.

[0204] At least one second distance adjusting mechanism can be arranged to be connected to a certain second wire cutting unit, or simultaneously associated with the two second wire cutting units, to drive the plurality of second cutting wheels in the connected or associated one or two second wire cutting units to move along the orthogonal direction of the second cutting wheel surface.

[0205] In embodiments, the second distance adjusting mechanism includes a screw rod arranged along the orthogonal direction of the second cutting wheel surface and threadedly connected to a certain second wire cutting unit, and a screw rod driving source for driving the screw rod to rotate. The plurality of second cutting wheels in the certain second wire cutting unit driven to move along the orthogonal direction of the second cutting wheel surface by the screw rod and the screw rod driving source are similar to the previous embodiments, and the certain second wire cutting unit driven by the distance adjusting mechanism can be regarded as a single wire cutting unit, which will not be described here. It should be understood that by arranging the second distance adjusting mechanism on any second wire cutting unit, the parallel second cutting wire saw distance between the two second wire cutting units can be increased and decreased, and the second silicon rod cutting device can cut silicon rods into different specifications.

[0206] In some embodiments, the second distance adjusting mechanism includes an extension and retraction member arranged along the orthogonal direction of the second cutting wheel surface and associated with a certain second wire cutting unit, and an extension and retraction member driving source for driving the extension and retraction member to extend and retract along the orthogonal direction of the second cutting wheel surface. Here, the certain second wire cutting unit provided with the second distance adjusting mechanism can be regarded as a single wire cutting unit, and the specific implementation manner can refer to the previous embodiments, which will not be described here.

[0207] In some embodiments, the second distance adjusting mechanism includes a distance adjusting rack arranged along the orthogonal direction of the second cutting wheel surface and associated with a certain second wire cutting unit, a transmission gear meshing with the distance adjusting rack, and a gear driving source for driving the transmission gear to rotate. Through the meshing transmission gear and distance adjusting rack, the gear driving source can control the distance adjusting rack to move along the rack direction line, and the certain second wire cutting unit associated with the distance adjusting rack can drive the plurality of second cutting wheels to move along the orthogonal direction of the second cutting wheel surface through the rack.

[0208] In some embodiments, the distance adjusting mechanism comprises a bidirectional screw rod arranged along the orthogonal direction of the second cutting wheel surface and threadedly connected with the two second wire cutting units, and a screw rod driving source for driving the screw rod to rotate so as to move the two second wire cutting units towards or away from each other along the orthogonal direction of the second cutting wheel surface. In one implementation, the bidirectional screw rod is a double-thread screw rod, the two ends of the bidirectional screw rod are respectively provided with threads with opposite directions, and the screw rod driving source can be arranged at either end of the bidirectional screw rod to drive the bidirectional screw rod to rotate along the screw rod axis. When the bidirectional screw rod is driven to rotate by the screw rod driving source, the movements of the two ends of the bidirectional screw rod are converted into axial linear movements in opposite directions by the threads with opposite directions at the two ends of the bidirectional screw rod. The axial direction is the orthogonal direction of the second cutting wheel surface where the bidirectional screw rod is arranged. When the screw rod driving source is driven, the second cutting wheels corresponding to the two second wire cutting units can move towards or away from each other.

[0209] In some implementations, the second distance adjusting mechanism comprises a servo motor arranged at at least one second wire cutting unit. In actual scenarios, a servo motor is arranged at each second wire cutting unit or at least one second wire cutting unit of the second silicon rod cutting device, and the displacement of the corresponding second wire cutting unit along the orthogonal direction of the second cutting wheel surface is controlled by the servo motor. The second wire cutting unit can have a pre-determined cutting displacement for slot changing or an adjustment amount for the cutting position of the cutting wire, and the multiple second cutting wheels in the second wire cutting unit are driven to move along the orthogonal direction of the second cutting wheel surface by a pre-determined displacement by the precise positioning function of the servo motor. For example, two second wire cutting units are arranged in the second silicon rod cutting device, and at least one of the two second wire cutting units moves along the orthogonal direction of the second cutting wheel surface independently under the driving of the corresponding servo motor. In some examples, the servo motor can also be replaced by a traveling motor and a traveling screw rod. It should be understood that the second distance adjusting mechanism is a driving device for relatively moving the multiple second cutting wheels in the second wire cutting unit, and the specific form of the second distance adjusting mechanism is not limited in the present application.

[0210] As described above, in the second silicon rod cutting device, the second cutting wiresaws of the two second wire cutting units arranged in parallel are arranged vertically or at an angle to the vertical direction. The second silicon rod transfer device and the silicon rod carried thereby are driven to move along the transfer direction, and the second cutting operation is performed on the silicon rod carried by the second silicon rod transfer device by the relative movement of the second wire cutting unit and the second silicon rod transfer device along the transfer direction, and the second cutting operation is performed on the silicon rod by the second cutting wiresaws in the two second wire cutting units. The silicon rod is cut by the second wire cutting unit to form a cutting surface and a side skin, i.e., the silicon rod is cut by a cutting wiresaw in a second wire cutting unit to form a cutting surface and leave a side skin. Therefore, the second cutting operation is performed on the silicon rod with a circular cross-section by the second cutting wiresaws in the two second wire cutting units arranged in parallel in the second silicon rod cutting device, and the silicon rod forms two parallel second side cutting surfaces.

[0211] In addition to the second wire cutting unit, the second silicon rod cutting device also includes at least one third wire cutting unit, wherein the at least one third wire cutting unit is formed with at least one third wire saw. The at least one third wire saw is located in the vertical plane and is arranged along the vertical or at an angle to the vertical. The at least one third wire saw is used to perform a second cutting operation on the silicon rod carried by the second silicon rod carrying device so that the silicon rod is obtained as at least two half rods with a rectangular cross-section after forming at least one cutting surface.

[0212] The third wire cutting unit includes multiple third cutting wheels and a third cutting wire. The third cutting wire is sequentially wound around the multiple third cutting wheels to form at least one third wire saw arranged vertically or at an angle to the vertical. The third wire cutting unit moves relative to the second silicon rod transfer device and the silicon rod it carries at the second cutting station, and at least one third wire saw performs a second cutting operation on the silicon rod carried by the second silicon rod transfer device. In some embodiments, the third cutting wire is wound in a loop between the third cutting wheels, where the first and last ends are connected. In this case, the third cutting wire can also be called a closed-loop cutting wire.

[0213] In some embodiments, such as Figure 13 As shown, the second silicon rod cutting device 15 includes a third wire cutting unit 156 located between two second wire cutting units 151. The third wire cutting unit includes a plurality of third cutting wheels and a third cutting wire. The third cutting wire is wound around the plurality of third cutting wheels to form at least one third wire saw. The third wire saw is arranged vertically or at an angle to the vertical.

[0214] like Figure 13 As shown, the second silicon rod cutting device 15 includes a third wire cutting unit 156 between two second wire cutting units 151. The third wire cutting unit 156 includes a plurality of third cutting wheels 157 and a third cutting wire 158. The third cutting wire 158 is wound around the plurality of third cutting wheels 157 to form at least one third wire saw 159, wherein the third wire saw 159 is arranged vertically or at an angle to the vertical. Figure 13As shown, the second silicon rod cutting device 15 can include two second wire cutting units 151 each having a second cutting wire saw 155 and a third wire cutting unit 156 having a third cutting wire saw 159. Thus, the second silicon rod cutting device 15 can include two second cutting wire saws 155 and a third cutting wire saw 159, which are all arranged along the vertical direction or at an angle with respect to the vertical direction. The third cutting wire saw 159 is arranged between the two second cutting wire saws 155 and is centrally arranged. The second cutting operation performed by the third cutting wire saw 159 can cut the silicon rod into two half rods of the same size. However, the third cutting wire saw 159 can also be arranged between the two second cutting wire saws 155 but not centrally arranged. The second cutting operation performed by the third cutting wire saw 159 can cut the silicon rod into two half rods of different sizes. In some embodiments, the second silicon rod cutting device includes a third wire cutting unit having two or more third cutting wire saws arranged parallel to each other and along the vertical direction or at an angle with respect to the vertical direction. In some embodiments, the second silicon rod cutting device includes two or more third wire cutting units, and the two or more third cutting wire saws in the two or more third wire cutting units are arranged parallel to each other and along the vertical direction or at an angle with respect to the vertical direction. The second cutting operation performed by the two or more third cutting wire saws can cut the silicon rod into three or more half rods of the same size or different sizes. In this application, for the purpose of description, the cut parts of the silicon rod are all referred to as half rods. In fact, when the number of third cutting wire saws is two or more, the cut parts of the silicon rod can be less than half of the whole silicon rod. Therefore, the term "half rod" can also be replaced by other terms, such as "small rectangular rod", "split rod", "sub rod", "small silicon rod", "small square rod", etc.

[0215] In addition, it should be noted that, since the second silicon rod cutting device includes at least one third wire cutting unit, the second carrying platform in the second silicon rod transferring device is provided with at least one wire accommodating groove corresponding to the at least one third cutting wire saw. In the case of Figure 13In the embodiment shown, the second silicon rod cutting device 15 includes a third wire saw unit 156 between the two second wire saw units 151, and the third wire saw unit 156 has a third wire saw 159. Therefore, the second carrying platform 141 in the second silicon rod transfer device 14 is provided with a wire accommodating groove 142 corresponding to the third wire saw 159. The wire accommodating groove 142 is arranged along the transfer direction (i.e., the first direction), and the width of the wire accommodating groove 142 is greater than that of the third wire saw 159 to accommodate the third wire saw 159. In some embodiments, the width of the wire accommodating groove is much greater than the wire diameter of the third wire saw (e.g., greater than or equal to 5 or 10 times the wire diameter of the third wire saw) to provide displacement of the third wire saw in the width direction of the wire accommodating groove (i.e., the transposition direction or the second direction Y-axis). In some embodiments, the second silicon rod cutting device includes two or more third wire saws (in some embodiments, the second silicon rod cutting device includes a third wire saw unit, and the wire saw unit includes two or more third wire saws; or in some embodiments, the second silicon rod cutting device includes two or more third wire saw units, and each third wire saw unit includes at least one third wire saw), and the second carrying platform is provided with two or at least two wire accommodating grooves corresponding to the two or more third wire saws.

[0216] In some embodiments, the third wire saw unit 156 includes a third cutting wheel 157, and the third wire saw 159 is formed between the two third cutting wheels 157. Figure 13 In the embodiment shown, each third cutting wheel 157 in the third wire saw unit 156 is coaxially arranged with each second cutting wheel 152 in the second wire saw unit 151 on the second cutting mounting structure 150. However, this is not a limitation, and in some embodiments, the third wire saw unit 156 can include a third cutting mounting structure, and the plurality of third cutting wheels 157 can be arranged on the third cutting mounting structure.

[0217] In the small-size rectangular rod cutting and grinding integrated device of the present application, the third wire saw in the third wire saw unit of the second silicon rod cutting device is arranged vertically or at an angle to the vertical direction.

[0218] In the third wire saw unit, at least one third wire groove is arranged in each third cutting wheel to wind the cutting wire and define the position of the third wire saw to control the cutting accuracy. Any third wire saw is formed between two third cutting wheels after the third wire is wound around the two third cutting wheels, and the positions of the two third cutting wheels and the positional relationship between the two third cutting wheels can be used to determine the direction of the third wire saw.

[0219] In some embodiments, the third wire saw unit includes a third cutting wheel unit, and the third cutting wheel unit includes two or more third cutting wheels. Figure 13As shown, in some embodiments, the third cutting unit includes a plurality of third cutting wheels 157, for example, four third cutting wheels 157, which are arranged in a rectangular shape, and the wheel surface of each third cutting wheel 157 is located in a vertical plane (the vertical plane is composed of the first direction and the third direction), wherein two third cutting wheels 157 are arranged in front (relatively closer to the second loading and unloading position) and in parallel, and the other two third cutting wheels 157 are arranged in back (relatively farther away from the second loading and unloading position) and in parallel, and the third cutting line 158 is wound around the four third cutting wheels 157 to form at least one third cutting wire saw 159 (for example, a third cutting wire saw 159 is formed between the two third cutting wheels 157 arranged in front and in parallel), and the third cutting wire saw 159 is arranged along the third direction (i.e., the vertical direction). In addition, in order to enable the third cutting wire saw 159 to effectively cut the silicon rod, the third cutting wire saw 159 interferes with the silicon rod in the vertical direction.

[0220] In some embodiments, the third cutting line is wound between each third cutting wheel in a head-to-tail manner to form a ring-shaped cutting line (also referred to as a closed loop cutting line). Figure 13 In the embodiment shown, the third cutting line 158 is wound between the plurality of third cutting wheels 157 in a head-to-tail manner to form a ring-shaped cutting line (also referred to as a closed loop cutting line).

[0221] The plurality of third cutting wheels in the third cutting unit are wound by a ring-shaped cutting line. In this example, the second silicon rod cutting device can dispense with the wire storage drum. The ring-shaped cutting line can be driven by the cutting line driving device to maintain high-speed operation, and at the same time, the ring-shaped cutting line can run in the same running direction during the cutting operation. In this way, the second silicon rod cutting device can achieve high-precision second cutting operation, avoiding the problems of the cutting surface having ripples and the like caused by the running direction reversal or running speed of the cutting line in the existing cutting method. At the same time, the ring-shaped cutting line can effectively reduce the total length of the cutting line required by the third line cutting unit, thereby reducing production costs.

[0222] In some embodiments, the cutting line driving device is a motor having a power output shaft connected to the third cutting wheel, so that the third cutting line can be driven by the third cutting wheel to run in the winding direction. Of course, in specific embodiments, the cutting line driving device can also be another driving source such as a hydraulic motor, as long as it can drive the third cutting line to run, which is not limited in the present application. As mentioned earlier, in some embodiments, each third cutting wheel in the third line cutting unit is coaxially arranged with each second cutting wheel in a second line cutting unit adjacent thereto, so that each third cutting wheel in the third line cutting unit can be driven by the cutting line driving device in the second line cutting unit, and the corresponding cutting line driving device for the third line cutting unit can be dispensed with.

[0223] The third wire cutting unit in this application may further include a third transition wheel, which is used to reverse or guide the third cutting line, or, alternatively, to adjust the tension of the third cutting line. The number of third transition wheels may be one or more depending on the layout requirements.

[0224] The third transition wheel guides and pulls the third cutting wire while simultaneously acting as a tensioning wheel to adjust the tension of the third cutting wire. The tensioning wheel is used to adjust the tension of the third cutting wire, which can reduce the probability of wire breakage and thus reduce material consumption.

[0225] like Figure 13 As shown, for example, in some embodiments, the third wire cutting unit 156 includes a plurality of third cutting wheels 157 and a plurality of third transition wheels 157', for example, two third cutting wheels 157 and two third transition wheels 157', and the wheel surfaces of the two third cutting wheels 157 and the two third transition wheels 157' are all located in the vertical plane. The two third cutting wheels 157 are arranged in front and parallel vertically, and the two third transition wheels 157' are arranged in the back and parallel vertically. The third cutting line 158 is wound around the two third cutting wheels 157 and the two third transition wheels 157' to form at least one third cutting wire saw 159 (for example, a third cutting wire saw 159 is formed between the two third cutting wheels 157). The at least one third cutting wire saw 159 is arranged vertically.

[0226] As before, the third cutting line 158 is wound around multiple third cutting wheels 157 or multiple third cutting wheels 157 and multiple third transition wheels 157' to form a third cutting line saw 159 between the two preceding third cutting wheels 157. Therefore, to adjust the line length of the third cutting line saw 159, the spacing between the two third cutting wheels 157 can be adjusted, which can be achieved by changing the position of at least one of the two third cutting wheels 157.

[0227] The third wire saw is arranged vertically or at an angle to the vertical, while the silicon rod carried by the second silicon rod transfer device at the corresponding second cutting station is placed horizontally (the axis of the silicon rod is arranged along the transfer direction). Therefore, in order to cut the silicon rod, the length of the third wire saw is adapted to the size of the end face of the silicon rod. For example, the length of the third wire saw must be greater than or equal to the diameter of the silicon rod or the chord length at the position where the silicon rod is to be cut.

[0228] The direction of the third cutting wheel surface has a corresponding relationship with the third cutting line saw, and it should be understood that the third cutting wheel surface is parallel to the plane where any third cutting line groove in the third cutting wheel is located. In order to control the cutting accuracy and the stability of the cutting process, the third cutting line saw should be located in the plane where the third cutting line groove for winding the third cutting line is located. At the same time, during the cutting process, the force direction of the silicon rod to the third cutting line should be parallel to the cutting line groove, that is, the cutting wheel surface is parallel to the cutting direction, and the cutting direction in the second cutting operation is the axial direction of the silicon rod, that is, the transfer direction (i.e., the first direction X-axis).

[0229] The second silicon rod cutting device includes a third line cutting unit located between and parallel to the two second line cutting units, and the third line cutting unit has a third cutting line saw, and the third cutting line saw is arranged along the vertical direction or at an angle to the vertical direction.

[0230] In fact, the third cutting line saw can still have other changes. In some embodiments, the third cutting line saw is arranged along the vertical direction, but it is not limited thereto. In other embodiments, the position of the third cutting line saw can be located in the vertical plane and arranged at an angle to the vertical direction (i.e., the third direction), the vertical plane is composed of the third direction and the third direction, the angle is less than or equal to 10 degrees (≤10°), or the angle is less than or equal to 5 degrees (≤5°), or the angle is less than or equal to 3 degrees (≤3°), that is, the third cutting line saw can be arranged in the vertical plane and form an angle less than or equal to 10 degrees (≤10°), or less than or equal to 5 degrees (≤5°), or less than or equal to 3 degrees (≤3°) with the third direction (i.e., the vertical direction). The angle here is not limited to an integer angle, but can be any angle within the limited range, for example, 0.09°, 1.3°, 2.5°, 3°, etc. In some embodiments, two third cutting wheels are arranged above and below to form the third cutting line saw, the upper third cutting wheel is in front in the first direction and the lower third cutting wheel is in back in the first direction, and the third cutting line saw formed thereby can form a positive angle with the vertical direction. In some embodiments, two third cutting wheels are arranged above and below to form the third cutting line saw, the upper third cutting wheel is in back in the first direction and the lower third cutting wheel is in front in the first direction, and the third cutting line saw formed thereby can form a negative angle with the vertical direction. The angle of the angle (including the positive angle and the negative angle) can be changed according to the cutting process requirements and the size specifications of the silicon rod, for example, by changing the position of one or both of the two third cutting wheels arranged above and below in relation to the third cutting line saw to adjust the angle of the angle.

[0231] In some embodiments, the third wire cutting unit further comprises a third tension adjusting mechanism. In wire cutting processing, the size of the cutting wire tension affects the yield and processing accuracy in cutting, and the third tension adjusting mechanism detects the tension and adjusts the tension to make the tension of the third cutting wire reach a certain threshold value and maintain a constant value or a certain range allowed by the numerical center of the constant value in cutting.

[0232] In some embodiments, the third tension adjusting mechanism is associated with the third transition wheel or the third cutting wheel. The third transition wheel in the wire cutting unit functions as a tension wheel for adjusting the tension of the cutting wire while achieving the guiding traction of the third cutting wire 158.

[0233] The tension wheel is used to adjust the tension of the cutting wire, which can reduce the probability of cutting wire breakage to reduce consumables. In cutting operations, the cutting wire plays a crucial role, but even the best cutting wire has limited extension and wear resistance, that is, the cutting wire will gradually thin out in continuous operation until it is eventually pulled apart. Therefore, the current wire cutting equipment generally designs a cutting wire tension compensation mechanism to compensate for the extension of the cutting wire in the round trip, and the tension wheel is one of the implementation means.

[0234] In some embodiments, taking the tension wheel as an example, the tension adjusting mechanism at least includes a tension sensor, a servo motor, and a lead screw; the tension sensor is arranged on the transition wheel and continuously senses the tension value of the cutting wire on the transition wheel, and sends a driving signal when the tension value is less than a preset value; the servo motor is electrically connected to the tension sensor and starts to work after receiving the driving signal sent by the tension sensor; one end of the lead screw is connected to the transition wheel, and the other end is connected to the servo motor, and when the servo motor works, the transition wheel is pulled to move in one direction to adjust the tension of the cutting wire.

[0235] In some embodiments, the tension adjusting mechanism includes a linkage assembly and a tension driving unit, the linkage assembly is associated with the transition wheel as a tension wheel and the tension driving unit, and the linkage assembly is controlled by the tension driving unit, that is, the linkage assembly is driven by the tension driving unit to act to drive the transition wheel to change position to adjust the tension of the closed-loop cutting wire.

[0236] Regarding the tension driving unit, in some implementations, the tension driving unit can include a counterweight portion, which can be associated with the linkage assembly. For example, taking a certain transition wheel as a tension wheel as an example, when the tension of the closed-loop cutting line is to be increased, the counterweight portion is released, the counterweight portion is lowered, the linkage assembly drives the associated tension wheel to move under the action of the gravity of the counterweight portion, thereby expanding the circumference of the figure surrounded by each cutting wheel and the transition wheel, and increasing the tension of the closed-loop cutting line. When the tension of the closed-loop cutting line is to be reduced, the counterweight portion is lifted, the linkage assembly drives the associated tension wheel to move in the opposite direction under the action of the gravity of the counterweight portion, thereby expanding the circumference of the figure surrounded by each cutting wheel and the transition wheel, and reducing the tension of the closed-loop cutting line.

[0237] The counterweight portion can include counterweight blocks, wherein the number of the counterweight blocks can be changed according to the requirement of the closed-loop cutting line tension adjustment, for example, the number of the counterweight blocks can be increased when the tension of the closed-loop cutting line is to be increased, and the number of the counterweight blocks can be reduced when the tension of the closed-loop cutting line is to be reduced.

[0238] In some implementations, the counterweight portion can include a locking mechanism. In some examples, the locking mechanism can be, for example, a latch.

[0239] The tension driving unit can still be changed in other ways, for example, in some implementations, the tension driving unit can include a tension cylinder.

[0240] In some embodiments, the second silicon rod cutting device further comprises at least one third distance adjusting mechanism arranged in the at least one third wire cutting unit, and used for driving the plurality of third cutting wheels in the third wire cutting unit to move in a direction perpendicular to the wheel surface of the cutting wheel. The second silicon rod cutting device can switch the third cutting line between different cutting grooves of the third cutting wheel based on the distance adjusting mechanism, or adjust the position of the third cutting line saw to change the cutting position (or processing specification) relative to the silicon rod.

[0241] In some implementations, taking one third wire cutting unit in the second silicon rod cutting device as an example, the third wire cutting unit includes a plurality of third cutting wheels and a plurality of third transition wheels. The third distance adjusting mechanism can be used to drive the plurality of third cutting wheels and the plurality of third transition wheels to move in a direction perpendicular to the wheel surface of the cutting wheel (i.e., the transposition direction or the second direction Y-axis), in which state, the third cutting wheel and the third transition wheel are relatively static, i.e., the positional relationship between the third transition wheel and the third cutting wheel does not change. At this time, the third distance adjusting mechanism is used to adjust the cutting position of the at least one third wire cutting line saw in the third wire cutting unit relative to the silicon rod.

[0242] Each third cutting wheel has at least two third cutting line grooves, different third cutting line grooves are parallel to each other, and the third cutting line grooves have a cutting offset in the direction of the perpendicular line of the third cutting wheel wheel surface. When the third distance adjusting mechanism is used to drive the movement of the plurality of third cutting wheels in the third wire cutting unit, the position of the third cutting line wound on the wire groove of the third cutting wheel can be changed.

[0243] When at least one third distance adjusting mechanism is used to change the third cutting line wound on the cutting line groove of the plurality of third cutting wheels in the at least one third wire cutting unit, in actual scenarios, the third cutting line grooves respectively corresponding to the third cutting line before and after the change of the wire groove can be determined in advance, for example, the position of the third cutting line before the change of the wire groove is the third cutting line groove a1, and the third cutting line after the change of the wire groove is wound on the third cutting line groove a2. The displacement of the third distance adjusting mechanism driving the movement of the plurality of third cutting wheels in the third wire cutting unit is determined based on the cutting offset between the third cutting line groove a1 and the third cutting line groove a2, that is, the displacement is set as the cutting offset between the third cutting line groove a1 and the third cutting line groove a2, so as to change the third cutting line from the third cutting line groove a1 to the third cutting line groove a2. It should be noted that the direction of the movement of the plurality of third cutting wheels in the third wire cutting unit driven by the at least one third distance adjusting mechanism is the direction in which the third cutting line groove a2 points to the third cutting line groove a1. After the change of the wire groove, the cutting position of the third cutting line saw in space does not change, and the step of further calibrating the position of the third cutting wheel or other components can be omitted, so that the silicon rod can be cut according to the preset cutting amount, and the change process is simplified.

[0244] To further illustrate the implementation manner of the at least one third distance adjusting mechanism for moving the plurality of third cutting wheels in the third wire cutting unit in the direction perpendicular to the third cutting wheel wheel surface, the application discloses the following embodiments. When the number of the third wire cutting units in the second silicon rod cutting device is different, the specific form of the at least one third distance adjusting mechanism can be changed accordingly.

[0245] In some embodiments, the second silicon rod cutting device includes a single-wire cutting unit, and the single-wire cutting unit is a third wire cutting unit. The third distance adjusting mechanism includes a lead screw arranged in the orthogonal direction of the third cutting wheel wheel surface and threadedly connected with the single-wire cutting unit, and a lead screw driving source for driving the rotation of the lead screw.

[0246] The third cutting wheel is provided with a third cutting wire, and the third cutting wire is wound on the third cutting wheel to form at least one third cutting wire saw. The third lead adjusting mechanism includes a screw rod having a distal end and a proximal end. In a specific implementation, the proximal end of the screw rod is connected to a screw rod driving source and rotates under the driving of the screw rod driving source, and the distal end of the screw rod is threadedly connected to the third single-wire cutting unit. Through the connection of the two ends of the screw rod, the screw rod can rotate based on the transmission of the screw rod driving source and convert the rotation of the screw rod into axial displacement by means of the threaded connection. The axial displacement direction is the setting direction of the screw rod, that is, the orthogonal direction of the wheel surface of the cutting wheel. The rotation of the screw rod driven by the screw rod driving source in the third lead adjusting mechanism can realize the displacement of the single-wire cutting unit in the orthogonal direction of the wheel surface of the third cutting wheel. The rotation direction of the screw rod driven to rotate is different, that is, the third cutting wheel of the single-wire cutting unit can advance or retreat in the orthogonal direction of the wheel surface of the third cutting wheel.

[0247] In some embodiments, the second silicon rod cutting device includes a single-wire cutting unit, and the single-wire cutting unit is a third wire cutting unit. The third lead adjusting mechanism includes a telescopic member arranged in the orthogonal direction of the wheel surface of the third cutting wheel and associated with the single-wire cutting unit, and a telescopic member driving source for driving the telescopic member to perform telescopic movement in the orthogonal direction of the wheel surface of the third cutting wheel. The telescopic member can be arranged in a rod structure, and the extension direction of the rod is the orthogonal direction of the wheel surface of the third cutting wheel. The telescopic member can perform telescopic movement in the extension direction under the driving of the telescopic member driving source. One end of the telescopic member can be connected to the telescopic member driving source, and the freely extendable end is associated with the single-wire cutting unit. Under the action of the telescopic member driving source, the third cutting wheel of the single-wire cutting unit can be moved in the orthogonal direction of the wheel surface of the third cutting wheel. The telescopic member is, for example, an electric telescopic rod, or a connecting rod connected to an air cylinder, and the air cylinder can be used as the telescopic member driving source. The application is not limited in this regard. The telescopic rod can be directly connected to the third cutting installation structure of the single-wire cutting unit, or indirectly connected to the third single-wire cutting unit through a support or a bearing. It should be understood that the extension or contraction of the telescopic member can correspond to the advance or retreat of the single-wire cutting unit in the orthogonal direction of the wheel surface of the third cutting wheel.

[0248] In this embodiment, the association can be achieved by one or more of clamping, screwing, bonding, and welding. For example, in the above embodiment, the telescopic rod can be associated with the third wire cutting unit by one or more of clamping, screwing, bonding, and welding. Of course, the implementation of the association is not limited to this, but is intended to achieve transmission in the second direction.

[0249] In some embodiments, the second silicon rod cutting device comprises a single wire cutting unit, where the single wire cutting unit is a wire cutting unit. The third distance adjusting mechanism comprises a rack arranged in the orthogonal direction of the third cutting wheel surface of the third wire cutting unit, a transmission gear meshing with the rack, and a gear driving source for driving the transmission gear to rotate. The transmission gear rotates under the driving of the gear driving source, and the rack meshing with the transmission gear moves in the rack direction accordingly. In this example, the rotation movement of the gear driving source can be converted into linear movement in the rack direction through the cooperation of the rack and the transmission gear. The rack arranged in the orthogonal direction of the third cutting wheel surface of the third wire cutting unit can drive the third cutting wheel of the single wire cutting unit to move in the orthogonal direction of the third cutting wheel surface. At the same time, the rotation direction of the transmission gear is controlled by the gear driving source, so that the plurality of third cutting wheels of the single wire cutting unit can move forward or backward in the orthogonal direction of the third cutting wheel surface.

[0250] In some embodiments, the second silicon rod cutting device comprises two third wire cutting units arranged in parallel and opposite directions. At least one of the two third wire cutting units can be driven to move in the orthogonal direction of the third cutting wheel surface by at least one distance adjusting mechanism, so as to adjust the wire saw distance between the third cutting wire saws in the two third wire cutting units, or change the cutting wire slot of the third cutting wire wound around the plurality of third cutting wheels in one third wire cutting unit.

[0251] The at least one third distance adjusting mechanism can be connected to one third wire cutting unit, or simultaneously associated with both third wire cutting units, so as to drive the plurality of third cutting wheels in the connected or associated third wire cutting unit or units to move in the orthogonal direction of the third cutting wheel surface.

[0252] The third distance adjusting mechanism comprises a screw rod arranged in the orthogonal direction of the third cutting wheel surface and threadedly connected to one third wire cutting unit, and a screw rod driving source for driving the screw rod to rotate. The plurality of third cutting wheels in the third wire cutting unit connected to the screw rod driving source move in the orthogonal direction of the third cutting wheel surface in a similar manner as the previous embodiments. The third wire cutting unit driven by the distance adjusting mechanism can be regarded as a single wire cutting unit, which will not be described here. It should be understood that by arranging the third distance adjusting mechanism on any third wire cutting unit, the parallel third cutting wire saw distance between the two third wire cutting units can be increased and decreased, and the second silicon rod cutting device can cut silicon rods into different specifications.

[0253] In some embodiments, the third pitch adjusting mechanism comprises: a telescopic member arranged along the normal direction of the third cutting wheel surface and associated with one of the third wire cutting units; and a telescopic member driving source for driving the telescopic member to perform telescopic movement along the normal direction of the third cutting wheel surface. In this case, the third wire cutting unit associated with the third pitch adjusting mechanism can be regarded as a single wire cutting unit, and the specific implementation manner can refer to the foregoing embodiments, which will not be described here again.

[0254] The third pitch adjusting mechanism comprises: a pitch rack arranged along the normal direction of the third cutting wheel surface and associated with one of the third wire cutting units; a transmission gear meshing with the pitch rack; and a gear driving source for driving the transmission gear to rotate. Through the meshing transmission gear and the pitch rack, the gear driving source can control the pitch rack to move along the rack direction line, and the third wire cutting unit associated with the pitch rack can drive a plurality of third cutting wheels to move along the normal direction of the third cutting wheel surface through the pitch rack.

[0255] In some embodiments, the pitch adjusting mechanism comprises: a bidirectional screw rod arranged along the normal direction of the third cutting wheel surface and threadedly connected with two third wire cutting units; and a screw rod driving source for driving the screw rod to rotate so that the two third wire cutting units move towards each other or move away from each other along the normal direction of the third cutting wheel surface. In one implementation, the bidirectional screw rod is a double-thread screw rod, the two ends of the bidirectional screw rod are respectively provided with threads and the thread directions are opposite, and the screw rod driving source can be arranged at any one end of the bidirectional screw rod to drive the bidirectional screw rod to rotate along the screw rod shaft. Through the threads with opposite directions at the two ends of the bidirectional screw rod, the movement of the two ends of the bidirectional screw rod is converted into axial linear movement with opposite directions when the bidirectional screw rod is driven to rotate by the screw rod driving source, and the axial direction is the normal direction of the third cutting wheel surface where the bidirectional screw rod is arranged. Under the driving of the screw rod driving source, a plurality of third cutting wheels corresponding to the two third wire cutting units can move towards each other or move away from each other.

[0256] In some embodiments, the third distance adjusting mechanism comprises a servo motor arranged in at least one third wire cutting unit. In actual scenarios, a servo motor is arranged on at least one third wire cutting unit or each third wire cutting unit of the second silicon rod cutting device, and the servo motor controls the displacement of the corresponding third wire cutting unit in the orthogonal direction of the third cutting wheel surface. The third wire cutting unit can have a pre-determined cutting offset amount of slot changing or adjustment amount of cutting line changing cutting position, and the servo motor precisely positions the third cutting wheel in the third wire cutting unit to move in the orthogonal direction of the third cutting wheel surface by a pre-determined displacement amount. For example, two third wire cutting units are arranged in the second silicon rod cutting device, and at least one of the two third wire cutting units moves independently in the orthogonal direction of the third cutting wheel surface under the driving of the corresponding servo motor. In some examples, the servo motor can also be replaced by a travel motor and a travel screw, and it should be understood that the third distance adjusting mechanism is a driving device for driving the relative movement of the plurality of third cutting wheels in the third wire cutting unit, and the specific form is not limited in the present application.

[0257] As described above, in the second silicon rod cutting device, a third wire cutting unit is arranged between the two second wire cutting units, and the third cutting wire saw in the third wire cutting unit is arranged vertically or at an angle to the vertical direction. The second silicon rod transfer device and the silicon rod carried thereby are driven to move in the transfer direction, and the second cutting operation of the silicon rod carried by the second silicon rod transfer device is performed by the relative movement of the third wire cutting unit and the second silicon rod transfer device in the transfer direction, so that the silicon rod forms a split surface to obtain two half rods. In the second silicon rod cutting device, two or more third wire cutting units are arranged between the two second wire cutting units, and the third cutting wire saw in each third wire cutting unit is arranged vertically or at an angle to the vertical direction. In this way, the second silicon rod transfer device and the silicon rod carried thereby are driven to move in the transfer direction, and the second cutting operation of the silicon rod carried by the second silicon rod transfer device is performed by the relative movement of the two or more third wire cutting units and the second silicon rod transfer device in the transfer direction, so that the silicon rod forms two or more split surfaces to obtain three or more half rods with rectangular cross sections.

[0258] The half rod cutting device comprises a second edge skin anti-collapse device cooperating with the second silicon rod transfer device, which is used to stabilize the edge skin during the second cutting operation of the silicon rod by the second silicon rod cutting device.

[0259] It should be understood that the silicon rod carried by the second silicon rod transfer device is in a horizontal position, i.e., the axis of the silicon rod is consistent with the transfer direction (i.e., the first direction X-axis). Therefore, the edge skin formed by the second cutting operation of the silicon rod by the second silicon rod cutting device is also in a horizontal position.

[0260] In some embodiments, the second edge collapse prevention device comprises a clamping support and an edge clamp, wherein the edge clamp is arranged on the clamping support for clamping the edge.

[0261] The edge clamp comprises a clamp seat, at least one pair of end face chucks, and a chuck driving mechanism.

[0262] The at least one pair of end face chucks are arranged opposite to each other along the transfer direction for clamping two end faces of the silicon rod.

[0263] The second silicon rod transfer device comprises a second edge collapse prevention device which cooperates with the second silicon rod transfer device to clamp the end faces of the silicon rod to prevent edge collapse during the second cutting operation of the silicon rod.

[0264] In the present application, the second edge collapse prevention device can be the same as the first edge collapse prevention device described above, and therefore, the specific structure and working principle of the second edge collapse prevention device can be referred to the description of the first edge collapse prevention device, which is only briefly described herein.

[0265] In some embodiments, the second edge collapse prevention device comprises a clamping support and an edge clamp.

[0266] In some embodiments, the clamping support of the second edge collapse prevention device is associated with the second carrying platform of the second silicon rod transfer device, i.e., the clamping support of the second edge collapse prevention device can advance and retreat together with the second carrying platform of the second silicon rod transfer device.

[0267] The edge clamp is arranged on the clamping support. In some embodiments, the edge clamp comprises a clamp seat, at least one pair of end face chucks, and a chuck driving mechanism.

[0268] The chuck driving mechanism is used to drive at least one of the at least one pair of end face chucks to move along the clamping direction to adjust the clamping distance between the at least one pair of end face chucks.

[0269] In some embodiments, the chuck driving mechanism comprises a chuck moving guide rail arranged along the clamping direction, and a chuck driving unit used to drive at least one of the at least one pair of end face chucks to move along the chuck moving guide rail.

[0270] In some embodiments, a chuck moving guide rail can be arranged between the second end face chuck and the second end face chuck of the at least one pair of end face chucks.

[0271] In some embodiments, the chuck driving unit comprises at least one chuck telescopic assembly. The chuck telescopic assembly comprises a chuck telescopic rod and a chuck telescopic cylinder, the chuck telescopic rod is arranged along the clamping direction and associated with a corresponding one of the end face chucks, and the chuck telescopic cylinder is associated with the chuck telescopic rod. In some embodiments, the chuck driving mechanism is configured to drive two of the pair of end face chucks to move towards or away from each other along the clamping direction, and the chuck driving mechanism comprises a pair of chuck telescopic assemblies, each of which corresponds to one of the end face chucks, the chuck telescopic rod of each of the chuck telescopic assemblies is arranged along the clamping direction and associated with a corresponding one of the end face chucks, and the chuck telescopic cylinder of each of the chuck telescopic assemblies is associated with the chuck telescopic rod. The chuck telescopic cylinder of each of the pair of chuck telescopic assemblies is configured to control the corresponding chuck telescopic rod to retract or extend, thereby driving the pair of end face chucks to move towards or away from each other along the movement guide rail on the movement guide rod or the movement guide beam. In some embodiments, the chuck driving mechanism is configured to drive one of the pair of end face chucks to move towards or away from the other end face chuck along the clamping direction, and the chuck driving mechanism comprises a chuck telescopic assembly corresponding to the end face chuck to be moved, the chuck telescopic rod of the chuck telescopic assembly is arranged along the clamping direction and associated with a corresponding one of the end face chucks, and the chuck telescopic cylinder of the chuck telescopic assembly is associated with the chuck telescopic rod. The chuck telescopic cylinder of the chuck telescopic assembly is configured to control the corresponding chuck telescopic rod to retract or extend, thereby driving the corresponding one of the end face chucks to move towards or away from the other end face chuck along the movement guide rail on the movement guide rod or the movement guide beam.

[0272] In some embodiments, the chuck driving unit comprises at least one pair of clamping racks, a driving gear, and a gear driving source.

[0273] In some embodiments, the chuck driving unit comprises at least one pair of clamping racks, a driving gear, and a gear driving source.

[0274] In some embodiments, the chuck driving unit comprises at least one chuck clamping assembly, the chuck clamping assembly comprises a clamping lead screw and a lead screw driving source.

[0275] In some embodiments, the chuck driving unit comprises a bidirectional lead screw and a lead screw driving source, the bidirectional lead screw is arranged along the clamping direction, the two ends of the bidirectional lead screw are respectively provided with threads with opposite directions, the two ends of the bidirectional lead screw are respectively associated with at least one pair of end face chucks, and the lead screw driving source is associated with the bidirectional lead screw.

[0276] The at least one pair of end face chucks are arranged opposite to each other along the clamping direction, and are configured to clamp the two end faces of the silicon rod.

[0277] In some embodiments, for each of the at least one pair of end face chucks, the end face chuck comprises a clamping base and a side skin pressing member arranged on the clamping base, the side skin pressing member being configured to press the side skin to be cut in the silicon rod.

[0278] In some embodiments, the clamping base may, for example, be a clamping plate, the size of which is adapted to the side skin to be cut, i.e. at least part or all of the clamping plate covers the side skin to be cut.

[0279] In some embodiments, the side skin pressing member comprises a side skin pressing screw arranged on the clamping plate, the number of the side skin pressing screw may be one or more. In actual application, the side skin pressing screw is configured to press the side skin to be cut in the silicon rod, and can ensure that the side skin to be cut in the silicon rod remains stable during the second cutting operation.

[0280] Of course, in some embodiments, the side skin pressing member in the end face chuck may also comprise a side skin pressing elastic member arranged on the clamping base. For example, in some embodiments, the side skin pressing elastic member comprises a side skin pressing rod, which is sleeved with a compression spring.

[0281] Thus, when the second cutting operation is performed on the silicon rod by the second silicon rod cutting device, the silicon rod is carried by the second silicon rod transfer device, at least one end face chuck in the at least one pair of end face chucks is driven by the chuck driving mechanism in the second side skin anti-collapse device to move along the clamping direction, so that the at least one pair of end face chucks clamps the two end faces of the silicon rod, and the side skin pressing member in the end face chuck presses the side skin to be cut in the silicon rod, which can ensure that the side skin to be cut in the silicon rod remains stable during the second cutting operation, and can avoid the phenomena that the side skin falls off or the side skin deviates from the main body of the silicon rod to cause collapse when the second cutting wire saw in the second wire cutting unit completely cuts through the silicon rod.

[0282] In some embodiments, for each of the at least one pair of end face chucks, the end face chuck comprises a silicon rod pressing member, a side skin pressing member, and a side skin clamping reinforcing member, wherein the silicon rod pressing member is configured to press the main body of the silicon rod, the side skin pressing member is configured to press the side skin to be cut in the silicon rod, and the side skin clamping reinforcing member is configured to apply additional clamping force to the side skin. In this application, the silicon rod with a circular cross section is subjected to square cutting operation to form a square silicon rod with a rectangular cross section, wherein the main body of the silicon rod refers to at least the part containing the square silicon rod, i.e. the main body of the silicon rod is relative to the side skin, the main body of the silicon rod contains the square silicon rod, and the main body of the silicon rod varies in different square cutting operations.

[0283] In some embodiments, the clamping base can be a clamping substrate, which is sized to cover the end face of the silicon rod and the edge skin to be cut, i.e. the clamping substrate covers at least part of the silicon rod body and part of the edge skin. The clamping substrate covers part of the silicon rod body so that the silicon rod pressing member provided thereon can act on the silicon rod body. The clamping substrate also covers part of the edge skin so that the edge skin pressing member and the edge skin clamping reinforcement provided thereon can act on the edge skin.

[0284] In some embodiments, the silicon rod pressing member includes a silicon rod pressing screw provided on the clamping substrate, and the edge skin pressing member includes an edge skin pressing screw provided on the clamping substrate. The number of the silicon rod pressing screw can be one or more, and the number of the edge skin pressing screw can be one or more. In actual application, the silicon rod pressing screw is used to press the silicon rod body, and the edge skin pressing screw is used to press the edge skin to be cut. When the silicon rod pressing screw presses the silicon rod body and the edge skin pressing screw presses the edge skin to be cut, the relative stability between the silicon rod body and the edge skin can be ensured, and the edge skin falling or the edge skin and the silicon rod body deviating to cause edge collapse and other phenomena when the cutting wire saw in the wire cutting unit completely cuts through the silicon rod can be avoided.

[0285] It is known that in some cases, the end face of the silicon rod is not an ideal flat surface, and one of the silicon rod pressing member and the edge skin pressing member cannot effectively abut and press the corresponding silicon rod body or edge skin.

[0286] In order to adapt the silicon rod pressing member and the edge skin pressing member provided on the clamping base to the end face of the silicon rod to achieve effective pressing, the end face chuck further includes a biasing fine adjustment structure for adjusting the position of the clamping base. The position of the clamping base can be locally adjusted by using the biasing fine adjustment structure, so as to change the position of the silicon rod pressing member and the edge skin pressing member provided on the clamping base.

[0287] In some embodiments, the biasing fine adjustment structure adopts a ball head structure or the like, and the clamping base is provided through the ball head structure. In some embodiments, the ball head or the semi-ball head is connected to the clamping substrate through a connecting rod, and the ball head or the semi-ball head is embedded in a receiving cavity.

[0288] In some embodiments, the biasing fine adjustment structure adopts a hinged structure, and the clamping base is provided through the hinged structure. For example, the clamping substrate is associated with the mounting structure through the hinged structure, and can be biased relative to the mounting structure within a certain amplitude.

[0289] In some embodiments, the silicon rod pressing member in the end face chuck comprises a silicon rod pressing elastic member arranged on the clamping base, and the edge pressing member comprises an edge pressing elastic member arranged on the clamping base. For example, in some embodiments, the silicon rod pressing elastic member comprises a silicon rod pressing rod sleeved with a compression spring, and the edge pressing elastic member comprises an edge pressing rod sleeved with a compression spring. In some embodiments, the silicon rod pressing elastic member comprises a silicon rod pressing block with a compression spring arranged at the rear end thereof, and the edge pressing elastic member comprises an edge pressing block with a compression spring arranged at the rear end thereof.

[0290] In the end face chuck, the edge clamping reinforcing member is arranged to be capable of advancing and retreating relative to the clamping base along the clamping direction. When the edge clamping reinforcing member advances relative to the clamping base, the edge clamping reinforcing member can provide a strong clamping force to the corresponding edge. Generally, the clamping force exerted on the edge by the edge clamping reinforcing member is greater than the pressing force exerted on the silicon rod body by the silicon rod pressing member and the pressing force exerted on the edge by the edge pressing member.

[0291] In some embodiments, the edge clamping reinforcing member comprises a telescopic pressing rod or a telescopic pressing block and a telescopic driving source. The telescopic pressing rod or the telescopic pressing block is controlled by the telescopic driving source to advance and retreat relative to the clamping base. In some embodiments, a through hole is arranged on the clamping base, and the telescopic driving source and the telescopic pressing rod or the telescopic pressing block are arranged on a mounting structure. The telescopic driving source can drive the telescopic pressing rod or the telescopic pressing block to extend out of the clamping base and press against the corresponding edge, or drive the telescopic pressing rod or the telescopic pressing block to retract into the clamping base. The telescopic driving source may, for example, be a telescopic pneumatic cylinder.

[0292] The end face chuck can still be changed in other embodiments. In some embodiments, the end face chuck comprises a second clamping base and a second clamping base. The silicon rod pressing member is arranged on the second clamping base, the edge pressing member is arranged on the second clamping base, and the edge clamping reinforcing member is arranged to be capable of advancing and retreating relative to the second clamping base along the clamping direction.

[0293] In some embodiments, the second clamping base may, for example, be a clamping base plate, the size of which is adapted to the end face of the silicon rod body, i.e., the second clamping base plate covers at least part of the silicon rod body, so that the silicon rod pressing member arranged thereon can act on the silicon rod body. The second clamping base may, for example, be a clamping base plate, the size of which is adapted to the end face of the edge to be cut, i.e., the second clamping base plate covers at least part of the edge, so that the edge pressing member arranged thereon can act on the edge.

[0294] In the end face chuck, the silicon rod pressing member includes a silicon rod pressing screw arranged on the second clamping substrate, and the number of the silicon rod pressing screw can be one or more. The edge skin pressing member includes an edge skin pressing screw arranged on the second clamping substrate, and the number of the edge skin pressing screw can be one or more. In actual application, the silicon rod pressing screw is used to press the silicon rod body, and the edge skin pressing screw is used to press the edge skin to be cut. In the case that the silicon rod pressing screw presses the silicon rod body and the edge skin pressing screw presses the edge skin to be cut, the relative stability between the silicon rod body and the edge skin can be ensured, and the edge skin falling or the edge skin and the silicon rod body deviating to cause edge collapse and the like can be avoided when the cutting wire saw in the wire cutting unit penetrates through the silicon rod to completely cut off.

[0295] In addition, in some embodiments, in the end face chuck, the silicon rod pressing member includes a silicon rod pressing elastic member arranged on the second clamping substrate, and the edge skin pressing member includes an edge skin pressing elastic member arranged on the second clamping substrate. For example, in some embodiments, the silicon rod pressing elastic member includes a silicon rod pressing rod sleeved with a compression spring, and the edge skin pressing elastic member includes an edge skin pressing rod sleeved with a compression spring. In some embodiments, the silicon rod pressing elastic member includes a silicon rod pressing block with a compression spring arranged at the rear end of the silicon rod pressing block, and the edge skin pressing elastic member includes an edge skin pressing block with a compression spring arranged at the rear end of the edge skin pressing block.

[0296] In the end face chuck, the edge skin clamping reinforcing member can be advanced and retreated relative to the second clamping substrate along the clamping direction. When the edge skin clamping reinforcing member is advanced relative to the second clamping substrate, the edge skin clamping reinforcing member can provide a strong clamping force to the corresponding edge skin. Generally, the clamping force applied to the edge skin by the edge skin clamping reinforcing member is greater than the pressing force applied to the silicon rod body by the silicon rod pressing member and the pressing force applied to the edge skin to be cut by the edge skin pressing member.

[0297] In some embodiments, the edge skin clamping reinforcing member includes a telescopic pressing rod or a telescopic pressing block which is controlled to advance and retreat relative to the second clamping substrate. For example, the edge skin clamping reinforcing member includes a telescopic pressing rod or a telescopic pressing block and a telescopic driving source, and the telescopic driving source drives the telescopic pressing rod or the telescopic pressing block to advance and retreat relative to the second clamping substrate. In some embodiments, a through hole is arranged on the second clamping substrate, the telescopic driving source and the telescopic pressing rod or the telescopic pressing block are arranged on a mounting structure, and the telescopic driving source can drive the telescopic pressing rod or the telescopic pressing block to protrude out of the second clamping substrate and press the corresponding edge skin, or drive the telescopic pressing rod or the telescopic pressing block to retract into the second clamping substrate. The telescopic driving source can be, for example, a telescopic pneumatic cylinder.

[0298] Thus, when the second cutting operation is performed on the silicon rod by the second silicon rod cutting device, the silicon rod is carried by the second silicon rod transfer device, at least one end face chuck of the at least one pair of end face chucks is driven by the chuck driving mechanism in the second edge skin anti-collapse device to move along the clamping direction, so that the at least one pair of end face chucks clamps the two end faces of the silicon rod, wherein the silicon rod pressing piece in the end face chuck presses the main body of the silicon rod, the edge skin pressing piece in the end face chuck presses the edge skin to be cut in the silicon rod, and the edge skin clamping reinforcing piece in the end face chuck is in a retracted state (in the retracted state, the edge skin clamping reinforcing piece is recessed in the clamping base, or protrudes from the clamping base but the protrusion height of the edge skin clamping reinforcing piece relative to the clamping base is also less than the protrusion height of the silicon rod pressing piece and the edge skin pressing piece relative to the clamping base), so that the edge skin and the main body of the silicon rod remain relatively stationary, and the phenomenon of edge skin falling or the edge skin and the main body of the silicon rod deviating to cause edge collapse and the like can be avoided when the cutting wire saw in the wire cutting unit completely cuts through the silicon rod. After the edge skin cutting is completed, the edge skin clamping reinforcing piece in the end face chuck is driven to protrude relative to the clamping base and press on the cut edge skin, and the clamping force of the edge skin clamping reinforcing piece on the edge skin is greater than the pressing force of the silicon rod pressing piece on the main body of the silicon rod and the pressing force of the edge skin pressing piece on the edge skin, at which time the at least one pair of end face chucks can be operated to move the cut edge skin.

[0299] In the present application, the second edge skin anti-collapse device can further include an edge skin clamp advancing and retreating mechanism for driving the edge skin clamp to advance and retreat along the advancing and retreating direction.

[0300] In the embodiment in which the end face chuck includes the clamping base and the edge skin pressing piece arranged on the clamping base, after the edge skin cutting is completed, the edge skin clamp is driven by the edge skin clamp advancing and retreating mechanism to retreat along the advancing and retreating direction, and the pressing force of the edge skin pressing piece on the edge skin can drive the clamped edge skin to separate from the main body of the silicon rod.

[0301] In the embodiment in which the end face chuck includes the clamping base, the silicon rod pressing piece and the edge skin pressing piece arranged on the clamping base, and the edge skin clamping reinforcing piece that advances and retreats relative to the clamping base along the clamping direction, after the edge skin cutting is completed, the edge skin clamping reinforcing piece in the end face chuck is driven to protrude relative to the clamping base and press on the cut edge skin, at which time the edge skin clamp is driven by the edge skin clamp advancing and retreating mechanism to retreat along the advancing and retreating direction, and the clamping force of the edge skin clamping reinforcing piece on the edge skin is greater than the pressing force of the silicon rod pressing piece on the main body of the silicon rod and the pressing force of the edge skin pressing piece on the edge skin, so as to drive the clamped edge skin to separate from the main body of the silicon rod.

[0302] In some embodiments, the edge skin clamp advancing and retreating mechanism includes: a clamp advancing and retreating guide rail arranged along the advancing and retreating direction; and an edge skin clamp advancing and retreating unit for driving the edge skin clamp to move along the clamp advancing and retreating guide rail.

[0303] In some embodiments, the edge clamp advancing / retracting unit comprises: a clamp seat telescopic rod arranged along the advancing / retracting direction and associated with the clamp seat of the edge clamp; and a clamp seat telescopic cylinder associated with the clamp seat telescopic rod.

[0304] In some embodiments, the edge clamp advancing / retracting unit comprises: an edge clamp advancing / retracting mechanism comprising: a clamp seat rack arranged along the advancing / retracting direction and associated with the clamp seat of the edge clamp; a clamp seat gear engaged with the clamp seat rack; and a gear driving source associated with the clamp seat gear for driving the clamp seat gear to rotate to move the engaged edge clamp along the advancing / retracting direction. The gear driving source may, for example, be a servo motor.

[0305] In some embodiments, the edge clamp advancing / retracting unit comprises: a retracting screw rod arranged along the advancing / retracting direction and associated with the clamp seat of the edge clamp; and a screw rod driving source associated with the retracting screw rod. The screw rod driving source may, for example, be a servo motor.

[0306] In the present application, the second edge skin edge collapse prevention device can further comprise a clamp lifting mechanism for driving the edge clamp to move up and down along the vertical direction. In some embodiments, the edge clamp is driven by the clamp lifting mechanism to move up or down along the vertical direction to adapt to the size of the silicon rod carried by the silicon rod transfer. For example, when the size of the silicon rod is large, the edge clamp is driven by the clamp lifting mechanism to move up along the vertical direction, and when the size of the silicon rod is small, the edge clamp is driven by the clamp lifting mechanism to move down along the vertical direction.

[0307] In some embodiments, the clamp lifting mechanism comprises: a clamp lifting guide rail arranged along the vertical direction; and a clamp lifting unit for driving the edge clamp to move up and down along the clamp lifting guide rail.

[0308] In some embodiments, the edge clamp lifting unit comprises: a lifting screw rod arranged along the vertical direction and associated with the clamp seat of the edge clamp; and a screw rod driving source associated with the lifting screw rod.

[0309] In some embodiments, the clamp lifting unit comprises: a lifting rack arranged along the vertical direction and associated with the clamp seat of the edge clamp; a lifting gear engaged with the lifting rack; and a gear driving source associated with the lifting gear for driving the lifting gear to rotate to move the engaged edge clamp up and down along the vertical direction. The gear driving source may, for example, be a servo motor.

[0310] When the second edge skin anti-collapse device is applied, the silicon rod is placed horizontally on the silicon rod bearing platform of the silicon rod transfer device; the edge skin clamp is driven by the clamp lifting mechanism in the second edge skin anti-collapse device to move vertically and adjust the position; the edge skin clamp is driven by the edge skin clamp advancing and retreating mechanism in the second edge skin anti-collapse device to advance and approach the silicon rod; at least one end face clamp in the at least one pair of end face clamps is driven by the clamp driving mechanism in the second edge skin anti-collapse device to move in the clamping direction until the silicon rod pressing piece on the end face clamp presses the silicon rod body and the edge skin pressing piece on the end face clamp presses the edge skin to be cut. Then, the silicon rod is cut by the silicon rod cutting device to form the silicon rod body and the edge skin. After the edge skin is cut, the edge skin clamping reinforcement in the end face clamp is driven to extend relative to the clamping base and press the cut edge skin. At this time, the edge skin clamp is driven by the edge skin clamp advancing and retreating mechanism to retreat in the advancing and retreating direction. The clamping force applied to the edge skin by the edge skin clamping reinforcement is greater than the pressing force applied to the silicon rod body by the silicon rod pressing piece and the pressing force applied to the edge skin by the edge skin pressing piece, so that the clamped edge skin and the silicon rod body are separated.

[0311] In the present application, the second edge skin anti-collapse device further comprises an edge skin unloading and conveying mechanism connected with the edge skin clamp advancing and retreating mechanism.

[0312] In some embodiments, the edge skin unloading and conveying mechanism can comprise an edge skin bearing structure and a conveying driving mechanism.

[0313] The edge skin bearing structure is used to bear the edge skin. As mentioned above, the edge skin clamped by the edge skin clamp is retreated in the advancing and retreating direction by the edge skin clamp advancing and retreating mechanism to separate the edge skin from the silicon rod body. Then, the clamp driving mechanism in the edge skin clamp drives the clamp to move to release the clamped edge skin and make it fall on the edge skin bearing structure. In some embodiments, the edge skin bearing structure can be, for example, an edge skin placing groove. The edge skin placing groove can be, for example, a U-shaped structure.

[0314] In some embodiments, a conveying driving mechanism is used to move the driving edge carrying structure in the transfer direction to move between the second loading and unloading area and the second cutting area. In some embodiments, the conveying driving mechanism can be, for example, a chain conveying mechanism, which includes an endless chain, a chain driving source, and a connecting member. The endless chain is a closed loop chain, which is arranged around a plurality of movable gears to form a predetermined shape, such as an inverted triangle, a rectangle, or a trapezoid. The edge carrying structure is associated with the endless chain through the connecting member. The chain driving source can be, for example, a servo motor, which is associated with one of the movable gears. For example, the output shaft of the servo motor is connected to the gear shaft of the movable gear. When the endless chain is driven to rotate by the servo motor, the edge carrying structure and the edge carried thereby can be moved in the transfer direction by the connecting member. In actual applications, the servo motor operates to drive the associated movable gear to rotate forward (or reverse), which in turn drives the engaged endless chain to move forward (or reverse). The forward (or reverse) moving endless chain can drive the edge carrying structure to move from the second loading and unloading area to the second cutting area through the connecting member. Conversely, the servo motor operates to drive the associated movable gear to rotate reverse (or forward), which in turn drives the engaged endless chain to move reverse (or forward). The reverse (or forward) moving endless chain can drive the edge carrying structure and the edge carried thereby to move from the second cutting area to the second loading and unloading area through the connecting member.

[0315] In the present application, the edge feeding and conveying mechanism further includes an edge overturning mechanism for driving the edge carrying structure to overturn. Each edge carrying structure is provided with an edge overturning mechanism, which is used to drive the corresponding edge carrying structure and the edge carried thereby to overturn. The edge overturning mechanism includes a pivot shaft and a telescopic assembly, which includes a telescopic rod and a telescopic cylinder. The edge carrying structure is pivotally installed through the pivot shaft. One end of the telescopic rod is associated with the corresponding edge carrying structure, and the other end of the telescopic rod is associated with the telescopic cylinder. In actual applications, the telescopic cylinder drives the telescopic rod to retract, which in turn pulls the edge carrying structure to overturn toward the vertical direction through the pivot shaft and to be arranged vertically. The telescopic cylinder drives the telescopic rod to extend, which in turn pushes the edge carrying structure to overturn away from the vertical direction through the pivot shaft and to be arranged horizontally or obliquely, so that the edge carried by the edge carrying structure is arranged horizontally or obliquely, which facilitates subsequent unloading of the edge.

[0316] In the second cutting operation of the silicon rod by the second silicon rod cutting device of the cutting-grinding integrated equipment for small-size rectangular rods of the present application, the silicon rod with two first side surfaces is placed in a horizontal manner on the second silicon rod transfer device at the second loading-unloading position (the first side surface of the silicon rod is in contact with the second silicon rod transfer device); the second silicon rod carrying device and the silicon rod carried thereby are driven to transfer from the second loading-unloading position to the second cutting position along the transfer direction, the scrap clamps are driven by the scrap clamp advancing-retracting mechanism to advance to the silicon rod along the advancing-retracting direction, the scrap clamps of the second scrap prevention device are driven to clamp the silicon rod, at this time, the two second cutting wire saws and the third cutting wire saw arranged in parallel in the second silicon rod cutting device are located between the scrap clamp in front and the silicon rod; the second silicon rod transfer device carrying the silicon rod is driven to advance along the transfer direction towards the second cutting position, the two second cutting wire saws and the third cutting wire saw arranged in parallel in the second silicon rod cutting device are used to perform the second cutting operation on the silicon rod with a circular cross section by relative movement between the second silicon rod transfer device and the second silicon rod cutting device along the transfer direction, the two scrap of the silicon rod are cut off by the two second cutting wire saws to form two parallel second side surfaces on the silicon rod, the second side surface is perpendicular to the first side surface, and the third cutting wire saw is used to cut the silicon rod to form a split surface to obtain two half rods, the split surface is parallel to the second side surface; the scrap clamps of the second scrap prevention device are retracted along the advancing-retracting direction by the scrap clamp advancing-retracting mechanism to drive the clamped scrap to retract along the advancing-retracting direction to separate the clamped scrap from the main body of the silicon rod; the scrap clamps and the clamped scrap are lowered by the clamp lifting mechanism to release the scrap clamps, the scrap is released onto the scrap carrying structure, the scrap carrying structure is driven by the conveying driving mechanism to transfer from the second cutting position to the second loading-unloading position along the transfer direction, and the scrap carrying structure and the carried scrap are turned over by the scrap turning mechanism to unload the turned-over scrap; the second silicon rod carrying device and the main body of the silicon rod carried thereby are driven to transfer from the second cutting position to the second loading-unloading position along the transfer direction, and the second cutting operation of the silicon rod is completed.

[0317] The cutting-grinding integrated equipment for small-size rectangular rods of the present application further comprises a silicon rod loading-unloading device for loading the silicon rod with a circular cross section onto the first silicon rod transfer device, unloading the silicon rod after the first cutting from the first silicon rod transfer device and loading it onto the second silicon rod transfer device, and unloading the half rod after the second cutting from the second silicon rod transfer device and loading it onto the half rod grinding equipment.

[0318] In some embodiments, the silicon rod loading-unloading device comprises a silicon rod mounting frame, a silicon rod clamp, and a clamp displacement mechanism, wherein the silicon rod mounting frame is arranged across the cutting machine base along the displacement direction, the silicon rod clamp is used to clamp the two end surfaces of the silicon rod, and the clamp displacement mechanism is used to drive the silicon rod clamp to move along the displacement direction to move the silicon rod clamp on the silicon rod mounting frame.

[0319] In such Figure 1 and Figure 2 In the embodiment shown, the half-rod cutting equipment includes a silicon rod loading and unloading device 17, which includes a silicon rod mounting frame 171, a silicon rod clamp 172, and a clamp repositioning mechanism.

[0320] The silicon rod mounting bracket spans across the cutting machine base along the transposition direction. In some embodiments, the silicon rod mounting bracket spans across the cutting machine base along the transposition direction, which is consistent with the second direction. The length of the silicon rod mounting bracket should be sufficient to cover the entire cutting platform of the cutting machine base. When multiple cutting stations along the second direction are provided on the cutting platform, the length of the silicon rod mounting bracket should be long enough to cover the multiple cutting stations.

[0321] Silicon rod clamps are used to hold the two end faces of a silicon rod. In some embodiments, the silicon rod clamp includes a clamp mounting bracket and a silicon rod holding element. See also... Figure 2 The image shows a schematic diagram of a silicon rod clamp in one embodiment. Figure 1 and Figure 2 In the embodiment shown, the silicon rod clamp 172 includes a clamp mounting frame 173 and a silicon rod holder 174.

[0322] The fixture mounting frame is installed on the silicon rod mounting frame. The fixture mounting frame is used to set up silicon rod clamping components. Here, the specific structure of the fixture mounting frame can be set in different forms according to the arrangement requirements of the silicon rod clamping components, such as beams, frames, plate frames, etc.

[0323] The silicon rod holder is mounted on a fixture mounting frame. In some embodiments, the silicon rod holder moves up and down relative to the fixture mounting frame via a fixture lifting mechanism.

[0324] A silicon rod clamp is used to clamp silicon rods. In some embodiments, the silicon rod clamp includes: a clamp arm mounting base, at least one pair of clamp arms, and a clamp arm drive mechanism; the clamp arm mounting base is disposed on a fixture mounting frame.

[0325] As previously mentioned, in some embodiments, the silicon rod holder moves up and down relative to the fixture mounting frame via a fixture lifting mechanism.

[0326] In some embodiments, the clamp lifting mechanism comprises a lifting guide rail and a lifting driving unit. The lifting guide rail is arranged along a lifting direction for setting the silicon rod clamping member. Specifically, the lifting guide rail is associated with the clamp arm mounting seat. The lifting driving unit is used to drive the silicon rod clamping member to move up and down along the lifting guide rail. In some implementations, the lifting driving unit comprises a driving motor and a screw rod assembly arranged along the lifting direction and driven by the driving motor. The driving motor can be arranged at one end of the screw rod assembly and set on the clamp mounting frame. The screw rod assembly is controlled by the driving motor and screwed with the clamp arm mounting seat of the silicon rod clamping member. In this way, when the clamp lifting mechanism is used, the screw rod assembly is driven by the driving motor to rotate forward, thereby driving the silicon rod clamping member connected with the screw rod assembly to move upward along the lifting guide rail, or the screw rod assembly is driven by the driving motor to rotate reversely, thereby driving the silicon rod clamping member connected with the screw rod assembly to move downward along the lifting guide rail.

[0327] At least one pair of clamp arms is arranged on the clamp arm mounting seat in opposition along the transfer direction for clamping the two end faces of the silicon rod. Any one of the at least one pair of clamp arms is provided with a clamping portion for directly contacting and clamping the silicon rod. In some embodiments, the clamp arm extends downward from the clamp arm mounting seat, i.e., the bottom of the clamp arm is arranged on the clamp arm seat, and the top of the clamp arm is provided with the clamping portion for contacting and clamping the end face of the silicon rod. In this application, for the silicon rod to be cut, the silicon rod to be cut is a cylindrical structure with a certain length, and the length direction thereof is placed along the transfer direction (i.e., the first direction), and the end face is the face at both ends of the length direction. For the cut half rod, the half rod is a rectangular or quasi-rectangular cuboid structure with a certain length, and the length direction thereof is placed along the transfer direction (i.e., the first direction), and the end face is the face at both ends of the length direction.

[0328] The silicon rod clamp further comprises a clamp arm driving mechanism, which can drive at least one of the at least one pair of clamp arms to move along the transfer direction to adjust the clamping spacing between the pair of oppositely arranged clamp arms. In this way, the clamping portions of the at least one pair of clamp arms can approach or move away from each other under the action of the clamp arm driving mechanism to perform the clamping or releasing action on the silicon rod.

[0329] In some embodiments, the clamp arm driving mechanism comprises a moving guide rail and a clamp arm driving unit. The moving guide rail is arranged along the transfer direction (i.e., the first direction) for setting the at least one pair of clamp arms. In some implementations, the bottom of at least one of the at least one pair of clamp arms is provided with a guide groove structure matched with the moving guide rail. The clamp arm driving unit is associated with at least one of the at least one pair of clamp arms for driving the associated clamp arm to move along the moving guide rail.

[0330] In some embodiments, the gripper arm driving unit comprises a moving rack arranged on the gripper arm mounting base in a moving direction, a driving gear arranged on the associated gripper arm and engaged with the moving rack, and a gear driving source for driving the driving gear to rotate so as to move the associated gripper arm in the moving direction. The moving rack can be in the form of a rack, and the gear driving source can be, for example, a servo motor. In the above embodiments, the moving rack, the driving gear, and the gear driving source in the gripper arm driving unit can be implemented in different ways.

[0331] In some embodiments, when driving one gripper arm is to be implemented, a gripper arm driving unit can be provided, which comprises a moving rack, a driving gear, and a gear driving source. In actual application, the driving gear is driven by the gear driving source to rotate so as to move the associated gripper arm along the moving rack, for example, to move close to the other gripper arm (to reduce the clamping distance between the two gripper arms) or to move away from the other gripper arm (to increase the clamping distance between the two gripper arms).

[0332] In some embodiments, when driving a pair of gripper arms is to be implemented, two gripper arm driving units can be provided, each comprising a moving rack, a driving gear, and a gear driving source. In actual application, for each gripper arm, the driving gear is driven by the gear driving source to rotate so as to move the associated gripper arm along the moving rack, so that by driving each corresponding gripper arm to move by means of the two gripper arm driving units respectively, the two gripper arms can be driven to move towards each other (the two gripper arms move close to each other to reduce the clamping distance between the two gripper arms) or to move away from each other (the two gripper arms move away from each other to increase the clamping distance between the two gripper arms).

[0333] In some embodiments, the gripper arm driving unit comprises a moving rack arranged on the associated gripper arm in a moving direction, a driving gear arranged on the gripper arm mounting base and engaged with the moving rack, and a gear driving source for driving the driving gear to rotate so as to move the associated gripper arm in the moving direction. The moving rack can be in the form of a rack, and the gear driving source can be, for example, a servo motor. In the above embodiments, the moving rack, the driving gear, and the gear driving source in the gripper arm driving unit can be implemented in different ways.

[0334] In some embodiments, when driving one gripper arm is to be implemented, a gripper arm driving unit can be provided, which comprises a moving rack, a driving gear, and a gear driving source. In actual application, the driving gear is driven by the gear driving source to rotate so as to move the associated gripper arm along the moving rack, for example, to move close to the other gripper arm (to reduce the clamping distance between the two gripper arms) or to move away from the other gripper arm (to increase the clamping distance between the two gripper arms).

[0335] In some implementations, when a pair of clamping arms is to be actuated, two clamping arm actuating units can be provided, each including a moving rack, a driving gear, and a gear driving source. In actual applications, for each clamping arm, the driving gear is driven to rotate by the gear driving source to move the associated clamping arm along the moving rack. Thus, by using the two clamping arm actuating units to respectively drive the corresponding clamping arms to move, the two clamping arms can be driven to move towards each other (to reduce the clamping distance between the two clamping arms) or move away from each other (to increase the clamping distance between the two clamping arms).

[0336] In some implementations, when a pair of clamping arms is to be actuated, one clamping arm actuating unit can be provided, which includes two moving racks, a driving gear, and a gear driving source. Each moving rack is associated with a corresponding clamping arm. The driving gear is disposed on the clamping arm mounting seat between the two moving racks and is engaged with the two moving racks. In actual applications, the driving gear is driven to rotate by the gear driving source to move the associated two clamping arm mounting seats and their clamping arms towards each other (to reduce the clamping distance between the two clamping arms) or move away from each other (to increase the clamping distance between the two clamping arms).

[0337] The clamping arm actuating unit includes a moving rack disposed in the transfer direction and associated with a corresponding clamping arm, and a rack driving source for driving the moving rack to rotate to move the associated clamping arm in the transfer direction. The rack driving source can be, for example, a servo motor. In embodiments, the moving rack and the rack driving source in the clamping arm actuating unit can be implemented in different ways.

[0338] In some implementations, when a pair of clamping arms is to be actuated, one clamping arm actuating unit can be provided, which includes a moving rack disposed in the transfer direction and associated with a corresponding clamping arm, and a rack driving source for driving the moving rack to rotate to move the associated clamping arm in the transfer direction. In actual applications, the driving gear is driven to rotate by the gear driving source to move the associated clamping arm in the transfer direction, for example, to move closer to the other clamping arm (to reduce the clamping distance between the two clamping arms) or to move away from the other clamping arm (to increase the clamping distance between the two clamping arms).

[0339] In some implementations, when a pair of clamping arms is to be actuated, two clamping arm actuating units can be provided, each including a moving screw rod and a screw rod driving source, wherein each moving screw rod is associated with a respective one of the clamping arms. In actual use, for each clamping arm, the moving screw rod is driven by the screw rod driving source to rotate so as to move the associated clamping arm in a shifting direction, and thus, by driving each respective clamping arm to move using the two clamping arm actuating units, the two clamping arms can be driven to move towards each other (to reduce the clamping distance between the two clamping arms) or away from each other (to increase the clamping distance between the two clamping arms) along the moving toothed track.

[0340] When a pair of clamping arms is to be actuated, a clamping arm actuating unit can be provided, which includes a moving screw rod and a screw rod driving source, wherein the moving screw rod can be, for example, a bidirectional screw rod having threads at opposite ends with opposite directions, and the opposite ends of the bidirectional screw rod are associated with a pair of opposite clamping arms. In actual use, the bidirectional screw rod is driven by the screw rod driving source to rotate so as to move the associated pair of opposite clamping arms towards each other (to reduce the clamping distance between the two clamping arms) or away from each other (to increase the clamping distance between the two clamping arms) along the moving toothed track.

[0341] Of course, the clamping arm actuating unit can still be varied in other ways. For example, in some implementations, the clamping arm actuating unit can include a telescopic air cylinder, and the opposite ends of the telescopic air cylinder are associated with a pair of opposite clamping arms. Alternatively, in some implementations, the clamping arm actuating unit includes a clamping arm telescopic assembly, which includes a clamping arm telescopic rod associated with a respective one of the clamping arms and a clamping arm telescopic cylinder associated with the clamping arm telescopic rod.

[0342] In some embodiments, the clamping arms are rotatable, and the silicon rod clamping device further comprises a clamping arm rotating mechanism for driving the clamping arms to rotate. In some implementations, the clamping arm rotating mechanism is arranged on at least one of the clamping arms, and any one of the clamping portions of the clamping arms or both clamping portions of the clamping arms are rotatable, and are driven by the clamping arm rotating mechanism to rotate along the axis of the silicon rod. For example, in some examples, the clamping arm rotating mechanism can be a rotating motor, and both clamping portions of the clamping arms are rotatable, and the clamping portions of the clamping arms or the clamping portion of one of the clamping arms are connected to the output shaft of the rotating motor. For example, both clamping portions of the clamping arms are connected to a rotating motor, and the clamping portions of the clamping arms are driven by the rotating motor to rotate, or the clamping portion of one of the clamping arms is connected to a rotating motor, and the clamping portion of the clamping arm is driven by the rotating motor to rotate, and the clamping portion of the other clamping arm is also driven to rotate by the friction of the clamping silicon rod.

[0343] In some implementations, the clamping portions of the clamping arms have a contact surface for clamping the silicon rod or half rod. The contact surface is arranged on a rotatable platform, and the platform can have a self-defined regular or irregular geometric shape.

[0344] In some embodiments, the rotatable platform can be a whole hinged device with a locking function, and can rotate along the axis of the transfer direction. The axis of the rotating shaft is connected to the clamping arm rotating mechanism.

[0345] In some embodiments, the clamping portion of the clamping arm can be a rotatable circular platform, and the circular surface of the circular platform is in contact with the end surface of the silicon rod and remains stationary relative to the end surface of the silicon rod after being in close contact with the end surface of the silicon rod. The clamping portion further comprises a locking structure, and the clamping portion is in a locked state during the corresponding work (such as cutting) on the silicon rod. During the switching of the silicon rod, such as the switching of the cutting position, the clamping portion is rotated along the center of the circular platform under the driving of the clamping arm rotating mechanism.

[0346] In some embodiments, the clamping portion of the clamping arm comprises a rotatable circular platform and a series of protruding contacts arranged on the circular platform, and each contact has a contact surface. The circular platform is rotated under the driving of the clamping arm rotating mechanism. In one implementation of the present embodiment, the protruding length of the contact, i.e., the position in the transfer direction, can be adjusted, so that during the clamping of the silicon rod, for the silicon rod with a lower flatness of the end surface, the protruding length of the contact can be adjusted according to the end surface of the silicon rod, so that each contact surface is in close contact with the end surface of the silicon rod. The protruding length is the length in the transfer direction from the circular surface of the circular platform to the contact surface of the contact.

[0347] In some embodiments, the clamping portion of the silicon rod clamp is provided with a pressure sensor to adjust the protruding length of the contact points based on the detected pressure state. Generally, during clamping of the silicon rod, the pair of clamping arms of the silicon rod clamp are driven by the clamping arm driving mechanism to move towards each other along the moving direction until the contact surface of the clamping portion contacts the end surface of the silicon rod to be clamped. When the clamping portion is provided with multiple contact points and it is detected that the pressure value of the contact between some of the contact points and the end surface of the contacted silicon rod is less than a set value or a set range, the clamping degree can be changed by adjusting the protruding length (generally the approaching direction towards the end surface of the silicon rod) of the contact points. Alternatively, each clamping portion of the pair of clamping arms is provided with a contact surface. During clamping of the silicon rod, the clamping arm driving mechanism drives the pair of clamping arms to move towards each other along the moving direction until the contact surface of the clamping portion contacts the end surface of the silicon rod to be clamped. After the clamping portion contacts the end surface of the silicon rod, the clamping degree of the silicon rod is detected by the pressure sensor. When the set pressure range is reached, the clamping arm driving mechanism controls the movement of the pair of clamping arms to stop.

[0348] The clamping arm rotating mechanism can be provided on one of the pair of clamping arms (the other clamping arm only has rotating function) to drive the clamping portion of the pair of clamping arms to rotate with the clamped silicon rod or half rod. Alternatively, the clamping arm rotating mechanism is provided on each of the pair of clamping arms and cooperatively controls the two clamping portions of the pair of clamping arms to rotate by the same angle and in the same direction. In some implementations, the clamping arm rotating mechanism can include a driving motor.

[0349] During cutting of the silicon rod by the silicon rod cutting device, the clamping portion can be driven to rotate by the clamping arm rotating mechanism. Generally, during cutting of the single crystal silicon rod, the clamping arm rotating mechanism controls the clamping portion to rotate by a certain angle, for example, 90°, to cut one side or opposite two sides of the silicon rod by the silicon rod cutting device.

[0350] In the small-size rectangular rod cutting and grinding integrated device of the present application, the silicon rod loading and unloading device further includes a centering and adjusting mechanism for adjusting the position of the silicon rod so that the axial center line of the silicon rod corresponds to the predetermined center line. For example, the centering and adjusting mechanism can include a rotating mechanism for rotating the silicon rod loading and unloading device around the vertical axis of the silicon rod loading and unloading device. Figure 2 (or Figure 4In the embodiment shown in FIG. 15, the centering adjustment mechanism 175 includes at least two clamping assemblies arranged along the transfer direction, each clamping assembly including two clamping members arranged oppositely on the clamping arm mounting base along a clamping direction and a telescopic drive unit associated with the two clamping members, the telescopic drive unit being configured to drive the two clamping members to move telescopically relative to the clamping arm mounting base along the clamping direction, wherein the clamping direction is perpendicular to the transfer direction and forms a horizontal plane, i.e., the clamping direction is the second direction Y. The clamping members can be clamping plates or clamping strips, for example, and the telescopic drive unit can be a telescopic cylinder or a servo motor with a screw rod, for example. In actual applications, when the silicon rod needs to be centered before being placed horizontally on the first silicon rod transfer device for the first cutting operation or before being placed horizontally on the second silicon rod transfer device for the second cutting operation, at least two clamping assemblies in the centering adjustment mechanism can be operated, i.e., the two clamping members in the clamping assemblies are driven by the telescopic drive unit to move telescopically relative to the clamping arm mounting base along the clamping direction, and the silicon rod between the two clamping members is clamped to complete the centering operation, which is simple and fast.

[0351] The clamp displacement mechanism is configured to drive the silicon rod clamp to move along a displacement direction. In some embodiments, the clamp displacement mechanism includes a clamp displacement guide rail and a clamp displacement drive unit, wherein the clamp displacement guide rail is arranged on the silicon rod mounting rack along the displacement direction, and the clamp displacement drive unit is associated with the silicon rod clamp and is configured to drive the associated silicon rod clamp to move along the clamp displacement guide rail. Wherein the displacement direction is perpendicular to the transfer direction and forms a horizontal plane, i.e., the second direction Y in FIG. 1. Figure 1

[0352] In some embodiments, the clamp displacement drive unit includes a displacement rack, a drive gear, and a gear drive source, the displacement rack is arranged along the displacement direction, the drive gear is arranged on the silicon rod clamp and is engaged with the displacement rack, and the gear drive source is configured to drive the drive gear to rotate to drive the associated silicon rod clamp to move along the displacement direction.

[0353] In some embodiments, the clamp displacement drive unit includes a displacement rack, a drive gear, and a gear drive source, the displacement rack is arranged along the displacement direction, the drive gear is arranged on the silicon rod clamp and is engaged with the displacement rack, and the gear drive source is configured to drive the drive gear to rotate to drive the associated silicon rod clamp to move along the displacement direction. Figure 1 Figure 2 (or Figure 4 ​​In the embodiment shown in FIG. 1, the clamp transposition driving unit comprises a transposition rack, a driving gear, and a gear driving source. The transposition rack is arranged along the transposition direction, and the length of the transposition rack in the transposition direction covers the positions of the respective cutting stations and the silicon rod cutting device in the corresponding service in the half-rod cutting device, so as to ensure the transfer of the silicon rod clamp to the respective cutting stations. The moving rack can adopt the structure of a rack. The driving gear is arranged on the clamp mounting frame of the silicon rod clamp and is engaged with the transposition rack. The gear driving source is arranged on the clamp mounting frame of the silicon rod clamp and is associated with the driving gear. In actual application, the gear driving source can be used to drive the driving gear to rotate so as to drive the silicon rod clamp to move along the transposition direction through the transposition rack. For example, the driving gear is driven by the gear driving source to rotate forward, and through the cooperation of the driving gear and the transposition rack, the associated silicon rod clamp is driven to move forward along the transposition direction; the driving gear is driven by the gear driving source to rotate reversely, and through the cooperation of the driving gear and the transposition rack, the associated silicon rod clamp is driven to move reversely along the transposition direction.

[0354] Of course, the structure of the clamp transposition driving unit can still be changed. For example, in some embodiments, the clamp transposition driving unit can comprise a transposition screw rod arranged along the transposition direction and associated with the clamp mounting frame of the silicon rod clamp, and a screw rod driving source for driving the transposition screw rod to rotate so as to drive the associated silicon rod clamp to move along the transposition direction. In some embodiments, the chain conveying mechanism comprises a ring chain associated with the clamp mounting frame of the silicon rod clamp, and a chain driving source. The ring chain can be, for example, a closed loop chain which is arranged around a plurality of movable gears to form a predetermined shape. The chain driving source can be, for example, a servo motor.

[0355] In this application, the half-rod cutting device comprises a skin unloading device for unloading the cut skin.

[0356] In some embodiments, the skin unloading device comprises a skin mounting frame, a skin suction accessory, and a suction accessory transposition mechanism, wherein the skin mounting frame is arranged across the cutting seat along the transposition direction, the skin suction accessory is used for suction of the skin, and the suction accessory transposition mechanism is used for driving the suction accessory to move on the skin mounting frame along the transposition direction.

[0357] In the embodiments shown in FIGS. 1 and 2, Figure 1 and Figure 3 or Figure 4 In the embodiments shown in FIGS. 1 and 2, the half-rod cutting device 1 comprises a skin unloading device 18 which can be arranged at the loading and unloading area of the cutting processing platform and is used for unloading the cut skin from the cutting station (the first cutting station or the second cutting station) of the cutting processing platform. The loading and unloading area is located at the side of the cutting processing platform.

[0358] The skin unloading device 18 comprises a skin mounting frame 181, a skin suction accessory 182, and a suction accessory transposition mechanism.

[0359] The edge mounting frame is arranged across the cutting machine base along the transposition direction. In some embodiments, the edge mounting frame is arranged across the cutting machine base along the transposition direction, which is consistent with the second direction, and the length of the edge mounting frame is sufficient to cover the entire cutting processing platform of the cutting machine base. When the cutting processing platform is provided with one or more cutting station groups, each cutting station group includes a first cutting station and a second cutting station along the second direction, and the length of the edge mounting frame is sufficient to cover each cutting station.

[0360] The edge suction accessory is used for suction of the edge. In some embodiments, the edge unloading device includes a suction accessory mounting structure, and a plurality of edge suction accessories are arranged on the suction accessory mounting structure along the transfer direction (i.e., the length direction of the edge). The edge suction accessory includes a suction disc. The edge suction accessory is moved up and down relative to the edge mounting frame by a suction accessory lifting mechanism.

[0361] In some embodiments, the suction accessory lifting mechanism includes a lifting guide rod and a lifting driving unit. The lifting guide rod is arranged along the lifting direction and is used for arranging the edge suction accessory. Specifically, the lifting guide rod is associated with the suction accessory mounting structure of the edge suction accessory. The lifting driving unit is used for driving the edge suction accessory to move up and down along the lifting guide rod. The lifting driving unit includes a driving motor and a screw rod assembly arranged along the lifting direction and driven by the driving motor. The driving motor and the screw rod assembly can be arranged on the suction accessory mounting structure. The driving motor can be arranged at one end of the screw rod assembly. The screw rod assembly is controlled by the driving motor and is associated with the suction accessory mounting frame of the edge suction accessory. Thus, when the edge lifting mechanism is used, the screw rod assembly is driven by the driving motor to rotate forward, thereby driving the suction accessory mounting frame and the edge suction accessory thereon to move upward along the lifting guide rod, or the screw rod assembly is driven by the driving motor to rotate reversely, thereby driving the suction accessory mounting frame and the edge suction accessory thereon to move downward along the lifting guide rod. The suction accessory transposition mechanism is used for driving the edge suction accessory to move along the transposition direction to switch between the plurality of cutting stations.

[0362] In some embodiments, the suction accessory transposition mechanism includes a suction accessory transposition guide rail and a suction accessory transposition driving unit. The suction accessory transposition guide rail is arranged on the edge mounting frame along the transposition direction. The suction accessory transposition driving unit is associated with the edge suction accessory and is used for driving the associated edge suction accessory to move along the suction accessory transposition guide rail. The transposition direction is perpendicular to the transfer direction and constitutes a horizontal plane, i.e., the second direction Y-axis in the horizontal plane. Figure 1

[0363] In some embodiments, the suction accessory transposition driving unit includes a transposition toothed rail, a driving gear, and a gear driving source. The transposition toothed rail is arranged along the transposition direction and is arranged on the edge suction accessory and engaged with the transposition toothed rail. The gear driving source is used for driving the driving gear to rotate to drive the associated edge suction accessory to move along the transposition direction. ​

[0364] In such Figure 1 and Figure 3 (or Figure 4 In the embodiment shown, the adsorption element repositioning drive unit includes: a repositioning gear rail, a drive gear, and a gear drive source. The repositioning gear rail is arranged along the repositioning direction, and its length in the repositioning direction covers at least the positions of the corresponding cutting stations and silicon rod cutting devices in the integrated cutting and grinding equipment for small-sized rectangular rods, ensuring that the adsorption element can be transferred to each cutting station. The moving gear rail can adopt a rack structure. The drive gear is located on the adsorption element mounting bracket of the edge adsorption element and meshes with the repositioning gear rail. The gear drive source is located on the adsorption element mounting bracket of the edge adsorption element and is associated with the drive gear. In practical applications, the gear drive source can be used to drive the drive gear to rotate, thereby moving the edge adsorption element along the repositioning direction via the repositioning gear rail. For example, the drive gear is driven to rotate forward by a gear drive source, and through the cooperation of the drive gear and the transposition gear, the associated silicon rod clamp moves forward in the transposition direction; the drive gear is driven to rotate in reverse by a gear drive source, and through the cooperation of the drive gear and the transposition gear, the associated silicon rod clamp moves backward in the transposition direction.

[0365] Of course, the structure of the adsorption element repositioning drive unit can still be varied. For example, in some embodiments, the adsorption element repositioning drive unit may include: a repositioning screw, arranged along the repositioning direction and associated with the adsorption element mounting bracket of the edge adsorption element; and a screw drive source for driving the repositioning screw to rotate so that the associated edge adsorption element moves along the repositioning direction. The chain conveying mechanism includes a ring chain and a chain drive source. The ring chain is associated with the adsorption element mounting bracket of the edge adsorption element. The ring chain may be, for example, a closed-loop chain, which is wound around a plurality of movable gears to form a preset shape. The chain drive source may be, for example, a servo motor.

[0366] In some embodiments, the half-bar cutting device of this application may also include an edge skin recycling box or an edge skin recycling vehicle, and the edge skin is unloaded into the edge skin recycling box or edge skin recycling vehicle by the edge skin unloading device 18.

[0367] The half-bar cutting equipment of this application may further include a feeding conveyor device located at the unloading area for conveying the ground half-bar. In some embodiments, the feeding conveyor device may be, for example, a conveyor belt device, including a conveyor belt wound around two front-to-back conveyor rollers, at least one of the two conveyor rollers being shaft-connected to a feeding drive source, which may be, for example, a servo motor. Figure 1 and Figure 2 (or Figure 4 In the embodiment shown, the half-bar grinding equipment further includes a feeding conveyor 179.

[0368] The small-size rectangular rod cutting and grinding integrated device further comprises a crystal line detection device. In some embodiments, the crystal line detection device comprises: at least two support structures arranged at intervals, the support structures having a support roller set arranged along the transfer direction for supporting the silicon rod to be cut; a roller driving source for driving each support roller of the support roller set to rotate to drive the silicon rod to be cut to rotate; and a crystal line detection probe located between the at least two support structures.

[0369] The at least two support structures are arranged at intervals along the transfer direction, and each support structure has a support roller set, wherein the support roller set comprises two or more rollers arranged along the transfer direction, and each roller belonging to the same support roller set is connected through an axis arranged along the transfer direction, and when the support roller set is used to support the silicon rod to be cut, the wheel surface of each roller of the support roller set is in contact with the silicon rod to be cut. In addition, in this embodiment, the at least two support structures arranged at intervals along the transfer direction can also be movable, that is, at least one support structure of the at least two support structures can move along the transfer direction to adjust the support interval of the at least two support structures, so as to adapt to support silicon rods to be cut of various sizes.

[0370] The roller driving source is used to drive each support roller of the support roller set to rotate, wherein the roller driving source can be, for example, a servo motor, which can be associated with at least one support roller set through, for example, a chain (set) or a gear set.

[0371] In actual application, when the silicon rod to be cut with a circular cross section is placed in a horizontal state on the support structure of the crystal line detection device, the axis of the silicon rod to be cut is consistent with the transfer direction, and then each support roller of the support roller set can be driven by the roller driving source to rotate to drive the silicon rod to be cut to rotate by the friction between the support roller and the silicon rod to be cut, thereby completing the crystal line detection operation.

[0372] When the half-rod cutting device in the small-size rectangular rod cutting and grinding integrated device shown in the embodiment is used to perform square cutting and halving cutting operations, the specific process can be as follows: Figure 1

[0373] First, the silicon rod to be cut with a circular cross section is placed in a horizontal state on the crystal line detection device, and the silicon rod to be cut is driven by the crystal line detection device to rotate to complete the crystal line detection operation.

[0374] Then, the silicon rod to be cut is clamped from the crystal line detection device by the silicon rod loading and unloading device and transferred to the first silicon rod transfer device corresponding to the first loading and unloading area of the first cutting station, and the silicon rod to be cut is placed in a horizontal state and the axis of the silicon rod is consistent with the transfer direction.

[0375] ​Then, the edge skin clamp is driven by the edge skin clamp advancing and retreating mechanism to advance to the silicon rod, and the edge skin clamp corresponding to the edge skin collapse prevention device of the first silicon rod transfer device clamps the silicon rod to be cut; the first silicon rod transfer device carrying the silicon rod is driven to advance from the first loading and unloading area to the first cutting area along the transfer direction, and the first silicon rod cutting device and the first silicon rod transfer device relatively move along the transfer direction, and the two first cutting wire saws (the first cutting wire saw is arranged along the vertical direction or at an angle with the vertical direction) arranged oppositely in the first silicon rod cutting device cut the silicon rod carried by the first silicon rod transfer device to form two parallel first side cutting surfaces and two edge skins.

[0376] Then, the edge skin clamp is driven by the edge skin clamp advancing and retreating mechanism to advance to the silicon rod, and the edge skin clamp corresponding to the edge skin collapse prevention device of the first silicon rod transfer device clamps the silicon rod to be cut; the first silicon rod transfer device carrying the silicon rod is driven to advance from the first loading and unloading area to the first cutting area along the transfer direction, and the first silicon rod cutting device and the first silicon rod transfer device relatively move along the transfer direction, and the two first cutting wire saws (the first cutting wire saw is arranged along the vertical direction or at an angle with the vertical direction) arranged oppositely in the first silicon rod cutting device cut the silicon rod carried by the first silicon rod transfer device to form two parallel first side cutting surfaces and two edge skins.

[0377] Then, the first silicon rod transfer device carrying the silicon rod after the first cutting operation is driven to retreat from the first cutting area to the first loading and unloading area along the transfer direction, and the silicon rod is clamped from the first silicon rod transfer device by the silicon rod loading and unloading device and moved to the second cutting station along the transfer direction, and the silicon rod is placed on the second silicon rod transfer device at the second loading and unloading area after being rotated by 90°, and the silicon rod is placed in a horizontal manner and the axis of the silicon rod is consistent with the transfer direction.

[0378] Then, the position of the silicon rod is adjusted by the centering adjustment mechanism in the silicon rod loading and unloading device to make the axis of the silicon rod correspond to the predetermined center line.

[0379] Then, the edge skin clamp is driven by the edge skin clamp advancing and retreating mechanism to advance to the silicon rod, and the edge skin clamp of the edge skin anti-collapse device corresponding to the second silicon rod transferring device clamps the silicon rod; the second silicon rod transferring device carries the silicon rod to advance from the second loading and unloading area to the second cutting area along the transferring direction, and the second silicon rod cutting device and the second silicon rod transferring device move relative to each other along the transferring direction, so that the silicon rod is subjected to a second cutting operation by the two second cutting wiresaws and the third cutting wiresaw arranged opposite to each other in the second silicon rod cutting device, so that the silicon rod is cut into at least two half rods with a rectangular cross section through two parallel second side cutting surfaces and at least one split cutting surface between the two second side cutting surfaces.

[0380] Then, the edge skin clamp is driven by the edge skin clamp advancing and retreating mechanism to advance to the silicon rod, and the edge skin clamp of the edge skin anti-collapse device clamps the silicon rod; the second silicon rod transferring device carries the silicon rod to advance from the second loading and unloading area to the second cutting area along the transferring direction, and the second silicon rod cutting device and the second silicon rod transferring device move relative to each other along the transferring direction, so that the silicon rod is subjected to a second cutting operation by the two second cutting wiresaws and the third cutting wiresaw arranged opposite to each other in the second silicon rod cutting device, so that the silicon rod is cut into at least two half rods with a rectangular cross section through two parallel second side cutting surfaces and at least one split cutting surface between the two second side cutting surfaces.

[0381] Then, the edge skin clamp is driven by the edge skin clamp advancing and retreating mechanism to advance to the silicon rod, and the edge skin clamp of the edge skin anti-collapse device clamps the silicon rod; the second silicon rod transferring device carries the silicon rod to advance from the second loading and unloading area to the second cutting area along the transferring direction, and the second silicon rod cutting device and the second silicon rod transferring device move relative to each other along the transferring direction, so that the silicon rod is subjected to a second cutting operation by the two second cutting wiresaws and the third cutting wiresaw arranged opposite to each other in the second silicon rod cutting device, so that the silicon rod is cut into at least two half rods with a rectangular cross section through two parallel second side cutting surfaces and at least one split cutting surface between the two second side cutting surfaces.

[0382] Regarding the half rod grinding equipment, the half rod grinding equipment of the present application comprises: a grinding machine base, a grinding surface device, a chamfering device, and a half rod transferring device. Please refer to Figure 1 and Figure 14 , wherein, Figure 14 is shown as Figure 1 is shown as Figure 1 and Figure 14 , the half rod grinding equipment 2 of the present application comprises: a grinding machine base 21, a first type of grinding surface device 23, 23', a second type of grinding surface device 25, and a chamfering device 27. The half rod grinding equipment of the present application will be described in detail below.

[0383] The grinder base 21 serves as the main component of the semi-bar grinding device to provide a grinding platform. In practical applications, the grinder base has a large volume and weight to provide a large mounting surface and firm stability of the whole machine. It should be understood that the grinder base can serve as the base of different structures or components in the semi-bar grinding device that perform grinding operations, and the specific structure of the grinder base can be changed based on different functional or structural requirements. In some examples, the grinder base includes a fixing structure or a limiting structure such as a base, a column, a rack, etc. for receiving different components in the semi-bar grinding device.

[0384] Meanwhile, in some examples, the grinder base can be an integrated base, and in some examples, the grinder base can include multiple independent bases.

[0385] The grinder base has a grinding platform, which can be divided into multiple functional areas according to the specific operation content of the semi-bar grinding operation. For example, in some embodiments, the grinding platform includes a grinding area and a chamfering area. In some embodiments, the grinding platform includes a loading area, a grinding area, a chamfering area, and an unloading area. In some embodiments, the grinding platform includes a loading and unloading area, a grinding area, and a chamfering area. It should be noted that in each example provided in the present application, the functional area is defined by the travel path and range of the processing device at the functional area, for example, the grinding device of the semi-bar grinding device is arranged at the grinding area, and the range of the grinding area is the range occupied by the grinding device during the completion of the grinding operation; similarly, the chamfering device of the semi-bar grinding device is arranged at the chamfering area, and the range of the chamfering area is the range occupied by the chamfering device during the completion of the chamfering operation. The shape of the grinding platform can be determined according to the grinder base, or can be determined according to the grinder base and the processing needs of the grinding device and the chamfering device.

[0386] In some embodiments, each functional zone is arranged along the first direction or along the second direction. In the following description, the first direction refers to the depth extension direction of the half-bar grinding device (i.e., the front-rear direction or the transfer direction), and the second direction is perpendicular to the first direction, referring to the width extension direction of the half-bar grinding device (i.e., the left-right direction or the transposition direction). For example, when the half-bar grinding device includes a grinding surface zone and a chamfering zone, the grinding surface zone and the chamfering zone can be arranged in sequence along the first direction or arranged in parallel along the second direction. Taking the parallel arrangement along the second direction as an example, when the half-bar grinding device includes a loading zone, a grinding surface zone, and a chamfering zone, the loading zone, the grinding surface zone, and the chamfering zone can be arranged in parallel along the second direction (e.g., in the order of loading zone, grinding surface zone, and chamfering zone, or in the order of grinding surface zone, loading zone, and chamfering zone, etc.). When the half-bar grinding device includes a loading zone, a grinding surface zone, a chamfering zone, and an unloading zone, the loading zone, the grinding surface zone, the chamfering zone, and the unloading zone are arranged in parallel along the second direction (e.g., in the order of loading zone, grinding surface zone, chamfering zone, and unloading zone, or in the order of grinding surface zone, loading zone, unloading zone, and chamfering zone, etc.).

[0387] In Figure 1 and Figure 14 the embodiments shown, the grinding machine base 21 has a grinding processing platform provided with a loading zone, a first type of grinding surface zone, a second type of grinding surface zone, a chamfering zone, and the like. The first type of grinding surface zone is provided with a first type of grinding surface device for performing grinding surface work on a first side surface of a half-bar located in the first type of grinding surface zone. The second type of grinding surface zone is provided with a second type of grinding surface device for performing grinding surface work on a second side surface of a half-bar located in the second type of grinding surface zone. The chamfering zone is provided with a chamfering device for performing chamfering work on a corner portion of a half-bar located in the chamfering zone. In Figure 1 and Figure 14 the embodiments shown, each functional zone is arranged in parallel along the second direction.

[0388] The first type of grinding surface device and the second type of grinding surface device are both used for performing grinding surface work on a half-bar, which has four side surfaces to be ground. The first type of grinding surface device is arranged in the first type of grinding surface zone of the grinding processing platform and is used for performing grinding surface work on a pair of first side surfaces of a half-bar located in the first type of grinding surface zone. The second type of grinding surface device is arranged in the second type of grinding surface zone of the grinding processing platform and is used for performing grinding surface work on a pair of second side surfaces of a half-bar located in the second type of grinding surface zone.

[0389] In the embodiments provided in the present application, the half rod is formed after the aforementioned half rod cutting device performs square cutting and halving cutting on the silicon rod with a circular cross section. The half rod is generally a cuboid, and its length is generally greater than its width, and its width is greater than its thickness, and the whole is a flat long strip. The half rod has two end faces (end faces composed of width and thickness), four side faces (a pair of side faces composed of length and width, and a pair of side faces composed of length and thickness) located between the two end faces, and four edge portions, which can be, for example, edges or edge connecting surfaces. The half rod grinding device in the small-size rectangular rod cutting and grinding integrated device disclosed in the present application is used for grinding the four side faces of the half rod and chamfering the four edge portions.

[0390] In contrast, the side face composed of length and width is larger than the side face composed of length and thickness, so the grinding time of the side face composed of length and width is longer than the grinding time of the side face composed of length and thickness, and the greater the size difference between the width and the thickness (i.e., the greater the area difference between the side face composed of length and width and the side face composed of length and thickness), the greater the grinding time difference.

[0391] In the embodiments shown in Figure 1 and Figure 14 , the grinding processing platform is provided with two first-type grinding positions and a second-type grinding position, wherein the first-type grinding position is used for grinding the first side face (the side face composed of length and width) with a larger area in the half rod, and the second-type grinding position is used for grinding the second side face (the side face composed of length and thickness) with a smaller area in the half rod.

[0392] In the present application, the half rod is placed in a horizontal manner at the first-type grinding position and the second-type grinding position of the grinding processing platform. In order to enable the half rod to be stably placed at the first-type grinding position and the second-type grinding position, the half rod grinding device of the present application includes a first half rod clamping device and a second half rod clamping device.

[0393] The first half rod clamping device is arranged at the first-type grinding position and is used for clamping the end portion of the half rod in the length direction. In the embodiments shown in Figure 1 and Figure 14 , the grinding processing platform is provided with two first-type grinding positions, and each first-type grinding position is correspondingly provided with a first half rod clamping device and a first-type grinding device, that is, the half rod grinding device includes: the first-type grinding device 23 and the first half rod clamping device 24 located at the first first-type grinding position, the first-type grinding device 23' and the first half rod clamping device 24' located at the second first-type grinding position, and the second-type grinding device 25 and the second half rod clamping device 26 located at the second-type grinding position.

[0394] In some embodiments, the first type of grinding device 23 and the first half-rod clamping device 24 located at the first first-type grinding zone can be identical or similar in structure and working principle to the first type of grinding device 23' and the first half-rod clamping device 24' located at the second first-type grinding zone. Therefore, in the following description, only the first type of grinding device 23 and the first half-rod clamping device 24 located at the first first-type grinding zone are taken as representatives for description.

[0395] The first half-rod clamping device is intended to clamp a half-rod. In some embodiments, the first half-rod clamping device comprises a first bearing mounting seat and a first half-rod bearing clamp provided on the first bearing mounting seat. As shown in Figure 14 the first half-rod clamping device 24 comprises a first bearing mounting seat and a first half-rod bearing clamp.

[0396] The first bearing mounting seat is provided on the grinding machine base. In the embodiment shown in Figure 14 the first bearing mounting seat is provided on the grinding machine base 21 in the first direction for arranging the first half-rod bearing clamp.

[0397] The first half-rod bearing clamp is provided on the first bearing mounting seat for bearing and clamping a half-rod. In some embodiments, the first half-rod bearing clamp comprises at least one pair of first bearing clamping pieces and a first bearing clamping piece driving mechanism for driving at least one first bearing clamping piece of the at least one pair of first bearing clamping pieces to move.

[0398] The pair of first bearing clamping pieces are arranged oppositely in the first direction. The first bearing clamping piece has a half-rod bearing surface for bearing a half-rod, which can be horizontally arranged, i.e., the half-rod bearing surface (the first side surface composed of the length and width of the half-rod) is located in the horizontal plane composed of the first direction and the second direction. The first bearing clamping piece is provided with a half-rod clamping portion connected with the half-rod bearing surface and protruding from the half-rod bearing surface, by which one end of the half-rod being borne can be defined.

[0399] At least one of the first pair of load clamping members is configured with a first load clamping member driving mechanism, which is used to drive the associated first load clamping member to move to clamp the placed half-bar. In some embodiments, both of the first pair of load clamping members are configured with a first load clamping member driving mechanism, and a half-bar clamping space is formed between the two first load clamping members. After the half-bar is placed horizontally on the half-bar bearing surface of the two first load clamping members, the two first load clamping members are respectively driven by the respective first load clamping member driving mechanisms to move towards each other to clamp the placed half-bar. In some embodiments, one of the first pair of load clamping members is configured with a first load clamping member driving mechanism, which can be designed as a movable type. A half-bar clamping space is formed between the two first load clamping members. After the half-bar is placed horizontally on the half-bar bearing surface of the two first load clamping members, the corresponding one of the first load clamping members is driven by the first load clamping member driving mechanism to move towards the other first load clamping member to clamp the placed half-bar.

[0400] In some embodiments, the first load clamping member driving mechanism comprises a load clamping member travel guide and a load clamping member travel driving unit. The load clamping member travel guide is arranged on the first load mounting base along the first direction. The load clamping member travel driving unit is used to drive the first load clamping member to move along the load clamping member travel guide.

[0401] In some embodiments, the load clamping member travel driving unit comprises a horizontal telescopic rod and a telescopic cylinder. One end of the horizontal telescopic rod is associated with the first load clamping member, and the other end of the horizontal telescopic rod is associated with the telescopic cylinder. The telescopic cylinder is arranged on the first load mounting base. In actual application, the telescopic cylinder can drive the horizontal telescopic rod to retract. For example, the telescopic cylinder drives the horizontal telescopic rod to retract inward, thereby driving the first load clamping member to move along the first direction. The telescopic cylinder can also be a telescopic oil cylinder.

[0402] In some embodiments, the load clamping member travel driving unit comprises a load clamping member travel rack, a drive gear, and a driving source. The load clamping member travel rack is arranged on the first load mounting base along the first direction, parallel to the load clamping member travel guide. The drive gear is arranged on the first load clamping member and engages with the load clamping member travel guide. The drive gear is rotated by the driving source. The teeth of the drive gear engage with the load clamping member travel guide, and the first load clamping member connected with the drive gear moves along the load clamping member travel guide.

[0403] In some embodiments, the carrier clamp traveling drive unit comprises a carrier clamp traveling screw and a driving source, wherein the carrier clamp traveling screw is arranged along the first direction and associated with the first carrier clamp, and the driving source is configured to drive the carrier clamp traveling screw to rotate so as to move the associated first carrier ...

Claims

1. A semi-rod cutting apparatus, characterized by, The cutting machine seat has a cutting processing platform; the cutting processing platform is provided with one or more cutting station groups, each cutting station group includes a first cutting station and a second cutting station; the first cutting station is provided with a first silicon rod cutting device, the first silicon rod cutting device is used for first cutting operation on a silicon rod with a circular cross section, so that the silicon rod forms two parallel first side surfaces; the second cutting station is provided with a second silicon rod cutting device, the second silicon rod cutting device is used for second cutting operation on the silicon rod with two first side surfaces, so that the silicon rod forms at least two half rods with a rectangular cross section through forming two parallel second side surfaces and at least one split surface between the two second side surfaces, the second side surface is perpendicular to the first side surface, and the split surface is parallel to the second side surface. The first cutting station includes a first loading and unloading area and a first cutting area, the first cutting station is provided with a first silicon rod transfer device, the first silicon rod transfer device is used for carrying a silicon rod with a circular cross section to transfer between the first loading and unloading area and the first cutting area along the transfer direction, the first silicon rod cutting device is arranged in the first cutting area, the first silicon rod cutting device is provided with at least one first cutting wire saw, the at least one first cutting wire saw is arranged in a vertical plane and along a vertical direction or at an angle with the vertical direction, and the first silicon rod cutting device and the first silicon rod transfer device are relatively moved along the transfer direction to perform first cutting operation on the silicon rod with a circular cross section by the at least one first cutting wire saw; 2. The half-bar cutting apparatus according to claim 1, characterized by The second cutting station includes a second loading and unloading area and a second cutting area, the second cutting station is provided with a second silicon rod transfer device, the second silicon rod transfer device is used for carrying a silicon rod with two first side surfaces to transfer between the second loading and unloading area and the second cutting area along the transfer direction, the second silicon rod cutting device is arranged in the second cutting area, the second silicon rod cutting device is provided with at least one second cutting wire saw and at least one third cutting wire saw, the at least one second cutting wire saw and the at least one third cutting wire saw are arranged in a vertical plane and along a vertical direction or at an angle with the vertical direction, and the second silicon rod cutting device and the second silicon rod transfer device are relatively moved along the transfer direction to perform second cutting operation on the silicon rod with two first side surfaces by the at least one second cutting wire saw and the at least one third cutting wire saw. The first silicon rod transfer device includes a first transfer channel arranged along the transfer direction, a first bearing platform for bearing the silicon rod, and a first transfer driving mechanism for driving the first bearing platform and the silicon rod borne thereon to move on the first transfer channel along the transfer direction.

3. The half-bar cutting apparatus according to claim 2, characterized by The second silicon rod transfer device includes a second transfer channel arranged along the transfer direction, a second bearing platform for bearing the silicon rod, the second bearing platform is provided with at least one wire accommodating groove corresponding to the at least one third cutting wire saw, and a second transfer driving mechanism for driving the second bearing platform and the silicon rod borne thereon to move on the second transfer channel along the transfer direction.

4. The half-bar cutting apparatus according to claim 2, wherein The cutting machine seat has a cutting processing platform; the cutting processing platform is provided with one or more cutting station groups, each cutting station group includes a first cutting station and a second cutting station; the first cutting station is provided with a first silicon rod cutting device, the first silicon rod cutting device is used for first cutting operation on a silicon rod with a circular cross section, so that the silicon rod forms two parallel first side surfaces; the second cutting station is provided with a second silicon rod cutting device, the second silicon rod cutting device is used for second cutting operation on the silicon rod with two first side surfaces, so that the silicon rod forms at least two half rods with a rectangular cross section through forming two parallel second side surfaces and at least one split surface between the two second side surfaces, the second side surface is perpendicular to the first side surface, and the split surface is parallel to the second side surface.

5. The half-bar cutting apparatus according to claim 3 or 4, characterized by ​ A first edge skin anti-cracking device matched with the first silicon rod transfer device and a second edge skin anti-cracking device matched with the second silicon rod transfer device.

6. The half-bar cutting apparatus according to claim 5, wherein The first edge skin anti-cracking device or the second edge skin anti-cracking device comprises a clamping support and an edge skin clamp arranged on the clamping support, the edge skin clamp comprises a clamp base, at least one pair of end face chucks arranged oppositely along a clamping direction, and a chuck driving mechanism for driving at least one end face chuck in the at least one pair of end face chucks to move along the clamping direction.

7. The half-bar cutting apparatus according to claim 6, wherein The end face chuck comprises a clamping base and an edge skin pressing member arranged on the clamping base.

8. The half-bar cutting apparatus according to claim 7, wherein In the end face chuck, the edge skin pressing member comprises an edge skin pressing screw or an edge skin pressing elastic member arranged on the clamping base.

9. The half-bar cutting apparatus according to claim 6, wherein The end face chuck comprises a clamping base, a silicon rod pressing member and an edge skin pressing member arranged on the clamping base, and an edge skin clamping reinforcing member which is controlled to move along the clamping direction relative to the clamping base.

10. The half-bar cutting apparatus according to claim 9, wherein In the end face chuck, the silicon rod pressing member comprises a silicon rod pressing screw arranged on the clamping base, the edge skin pressing member comprises an edge skin pressing screw arranged on the clamping base, and the edge skin clamping reinforcing member comprises a telescopic pressing rod or a telescopic pressing block which is controlled to move relative to the clamping base; or, the silicon rod pressing member comprises a silicon rod pressing elastic member arranged on the clamping base, the edge skin pressing member comprises an edge skin pressing elastic member arranged on the clamping base, and the edge skin clamping reinforcing member comprises a telescopic pressing rod or a telescopic pressing block which is controlled to move relative to the clamping base.

11. The half-bar cutting apparatus according to claim 9 or 10, characterized by The end face chuck comprises a biasing fine adjustment structure for adjusting the position of the clamping base.

12. The half-bar cutting apparatus according to claim 11, wherein The biasing fine adjustment structure comprises a hinged structure or a ball head structure, and the clamping base is arranged through the hinged structure or the ball head structure.

13. The half-bar cutting apparatus according to claim 6, wherein The chuck driving mechanism comprises a chuck moving guide rail arranged along the clamping direction, and a chuck driving unit for driving at least one end face chuck in the at least one pair of end face chucks to move along the chuck moving guide rail.

14. The half-bar cutting apparatus according to claim 6, wherein The first edge skin anti-cracking device or the second edge skin anti-cracking device comprises an edge skin clamp moving mechanism for driving the edge skin clamp to move along a moving direction.

15. The half-bar cutting apparatus according to claim 14, wherein The edge skin clamp moving mechanism comprises an edge skin clamp moving guide rail arranged along the moving direction, and an edge skin clamp moving unit for driving the edge skin clamp to move along the edge skin clamp moving guide rail.

16. The half-bar cutting apparatus according to claim 6, wherein The first edge skin anti-cracking device or the second edge skin anti-cracking device comprises a clamp lifting mechanism, the clamp lifting mechanism comprises a clamp lifting guide rail arranged along a vertical direction, and a clamp lifting unit for driving the edge skin clamp to move up and down along the clamp lifting guide rail.

17. The half-bar cutting apparatus according to claim 5, wherein The first edge skin anti-cracking device or the second edge skin anti-cracking device comprises an edge skin unloading conveying mechanism, the edge skin unloading conveying mechanism comprises an edge skin bearing structure and a conveying driving mechanism.

18. The half-bar cutting apparatus according to claim 17, wherein The conveying driving mechanism comprises a chain conveying mechanism.

19. The half-bar cutting apparatus of claim 17, wherein, The edge skin bearing structure is controlled to be turned over by an edge skin turning mechanism.

20. The semi-rod cutting apparatus according to claim 1 or 2, characterized by The first silicon rod cutting device comprises two first wire cutting units arranged in parallel, each of which forms a first cutting wire saw; the second silicon rod cutting device comprises two second wire cutting units arranged in parallel, each of which forms a second cutting wire saw; the second silicon rod cutting device comprises at least one third wire cutting unit arranged between the two second wire cutting units, which forms a third cutting wire saw.

21. The half-bar cutting apparatus of claim 20, wherein, The first wire cutting unit comprises a plurality of first cutting wheels and a first cutting wire, which is sequentially wound around the plurality of first cutting wheels to form a first cutting wire saw; the second wire cutting unit comprises a plurality of second cutting wheels and a second cutting wire, which is sequentially wound around the plurality of second cutting wheels to form a second cutting wire saw; the third wire cutting unit comprises a plurality of third cutting wheels and a third cutting wire, which is sequentially wound around the plurality of third cutting wheels to form a third cutting wire saw.

22. The half-bar cutting apparatus of claim 21, wherein, The first cutting wire is wound between each of the first cutting wheels in a ring shape with the first and the last ends connected to each other; the second cutting wire is wound between each of the second cutting wheels in a ring shape with the first and the last ends connected to each other; the third cutting wire is wound between each of the third cutting wheels in a ring shape with the first and the last ends connected to each other.

23. The half-bar cutting apparatus of claim 21, wherein, The first wire cutting unit comprises at least one first transition wheel and a first tension adjusting mechanism associated with the at least one first transition wheel; the second wire cutting unit comprises at least one second transition wheel and a second tension adjusting mechanism associated with the at least one second transition wheel; the third wire cutting unit comprises at least one third transition wheel and a third tension adjusting mechanism associated with the at least one third transition wheel.

24. The half-bar cutting apparatus of claim 21, wherein, The first silicon rod cutting device comprises at least one first pitch adjusting mechanism arranged in at least one first wire cutting unit, which is used to drive the first cutting wheels in the first wire cutting unit to move in a direction perpendicular to the wheel surface of the first cutting wheels; the second silicon rod cutting device comprises at least one second pitch adjusting mechanism arranged in at least one second wire cutting unit, which is used to drive the second cutting wheels in the second wire cutting unit to move in a direction perpendicular to the wheel surface of the second cutting wheels; the second silicon rod cutting device comprises at least one third pitch adjusting mechanism arranged in the at least one third wire cutting unit, which is used to drive the third cutting wheels in the third wire cutting unit to move in a direction perpendicular to the wheel surface of the third cutting wheels.

25. The semi-rod cutting apparatus according to claim 2, wherein The silicon rod loading and unloading device is used to load a silicon rod with a circular cross section onto a first silicon rod transfer device, unload the silicon rod after the first cutting from the first silicon rod transfer device and load it onto a second silicon rod transfer device, and unload the half rod after the second cutting from the second silicon rod transfer device.

26. The half-bar cutting apparatus of claim 25, wherein, The silicon rod loading and unloading device comprises a silicon rod mounting rack arranged across the cutting machine base in a transposition direction, a silicon rod clamp used to clamp the two end faces of the silicon rod, and a clamp transposition mechanism used to drive the silicon rod clamp to move on the silicon rod mounting rack in the transposition direction.

27. The half-bar cutting apparatus of claim 26, wherein, The silicon rod clamp comprises a clamp mounting rack and a silicon rod clamping piece arranged on the clamp mounting rack.

28. The half-bar cutting apparatus of claim 27, wherein, The silicon rod clamping member comprises a clamping arm mounting seat arranged on the clamp mounting frame, at least one pair of clamping arms arranged on the clamping arm mounting seat in a transfer direction, and a clamping arm driving mechanism for driving at least one clamping arm of the at least one pair of clamping arms to move in the transfer direction to adjust the clamping distance between the at least one pair of clamping arms.

29. The half-bar cutting apparatus of claim 28, wherein, The at least one pair of clamping arms comprises a rotating structure, and the silicon rod clamp comprises a clamping arm rotating mechanism arranged on at least one clamping arm of the at least one pair of clamping arms for driving the clamping part of the at least one clamping arm to rotate.

30. The half-bar cutting apparatus of claim 28, wherein, In the silicon rod clamp, the silicon rod clamping member is moved up and down relative to the clamp mounting frame by a clamp lifting mechanism.

31. The half-bar cutting apparatus of claim 26, wherein, The clamp transposition mechanism comprises a clamp transposition guide rail arranged on the silicon rod mounting frame in a transposition direction, the transposition direction being perpendicular to the transfer direction and constituting a horizontal plane, and a clamp transposition driving unit associated with the silicon rod clamp for driving the associated silicon rod clamp to move along the clamp transposition guide rail.

32. The half-bar cutting apparatus of claim 26, wherein, The silicon rod loading and unloading device comprises a centering adjustment mechanism for adjusting the position of the silicon rod so that the axial center line of the silicon rod corresponds to a predetermined center line.

33. The half-bar cutting apparatus of claim 17, wherein, The edge skin unloading device comprises an edge skin mounting frame arranged across the cutting machine seat in a transposition direction, an edge skin suction member for suctioning the edge skin, and an suction member transposition mechanism for driving the suction member to move on the edge skin mounting frame in the transposition direction.

34. The half-bar cutting apparatus of claim 33, wherein, The edge skin suction member is moved up and down relative to the edge skin mounting frame by a suction member lifting mechanism.

35. The half-bar cutting apparatus of claim 33, wherein, The suction member transposition mechanism comprises a suction member transposition guide rail arranged on the edge skin mounting frame in a transposition direction, the transposition direction being perpendicular to the transfer direction and constituting a horizontal plane, and a suction member transposition driving unit associated with the edge skin suction member for driving the associated edge skin suction member to move along the suction member transposition guide rail.

36. The semi-rod cutting apparatus of claim 1, wherein, The crystal line detection device comprises at least two support structures arranged at a distance, the support structures having support roller sets arranged in a transfer direction for supporting the silicon rod to be cut, and a roller driving source for driving each support roller of the support roller sets to rotate to drive the silicon rod to be cut to rotate.

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