Wire cutting all-in-one machine

Abstract

This application discloses a wire EDM integrated machine, comprising: a base including a working area extending longitudinally from the proximal end to the distal end; a winding mechanism including a first winding device and a second winding device; a cutting mechanism including a frame, a cutting mounting structure, and a cutting unit; the cutting unit includes a cutting frame, a first cutting wheel and a second cutting wheel having multiple first wire grooves, and a first cutting wire or a second cutting wire; wherein, the first cutting wire is arranged in a loop between the first cutting wheel and the second cutting wheel in an end-to-end manner to form a ring-shaped wire saw, and the second cutting wire is sequentially wound around the first winding device, the first cutting wheel, the second cutting wheel, and the second winding device to form a single-wire cutting saw or a multi-wire cutting saw. This application integrates the ring-shaped wire cutting method, the long single-wire cutting method, and the long multi-wire cutting method into the same cutting equipment, so that the cutting, slicing, or sampling operations on the workpiece can be achieved simply by changing the winding method, thereby improving the equipment compatibility.

Description

Technical Field

[0001] This application relates to the field of silicon processing technology, and in particular to a wire EDM integrated machine. Background Technology

[0002] In the manufacture of various semiconductors and photovoltaic devices, semiconductor workpieces containing hard and brittle materials such as silicon, sapphire, or ceramics need to be cut, including severing, slicing, or sampling. Wire cutting technology can be used to cut semiconductor workpieces into short rods or sheet materials of target dimensions. Wire cutting technology is widely used in the semiconductor cutting field due to its high production efficiency, low operating cost, and high precision.

[0003] For example, when slicing or sampling a workpiece, multiple cutting wires are needed; when cutting a workpiece in half, a single cutting wire is required. Furthermore, when cutting with a single cutting wire, depending on the size or hardness of the workpiece, a closed-loop cutting method or a long single-wire cutting method can be selectively used. However, most manufacturers' cutting equipment typically only supports one cutting method, limiting the types of objects that can be cut. Therefore, how to provide a wire cutting device that is compatible with multiple wire cutting methods is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0004] In view of the shortcomings of the above-mentioned related technologies, the purpose of this application is to provide a wire EDM integrated machine to solve the technical problem that existing wire EDM equipment cannot simultaneously support multiple wire EDM modes, resulting in poor process adaptability.

[0005] To achieve the above and other related objectives, this application provides a wire EDM integrated machine, comprising: a base, including a working area for conveying workpieces extending longitudinally from a proximal end to a distal end, wherein a first guide rail is longitudinally arranged in the working area; a winding mechanism, including a first winding device and a second winding device respectively disposed on opposite sides of the base; and a cutting mechanism for performing cutting operations on the workpiece, including a frame spanning the working area, a lifting and lowering cutting mounting structure disposed on the frame, and a cutting unit disposed on the cutting mounting structure; the cutting unit includes a cutting frame disposed on the cutting mounting structure, a first cutting wheel and a second cutting wheel disposed on the cutting frame having a plurality of mutually parallel first wire grooves and respectively located on opposite sides of the working area, and a first cutting wire or a second cutting wire wound between the first cutting wheel and the second cutting wheel; wherein the first cutting wire is arranged in a loop between the first cutting wheel and the second cutting wheel in an end-to-end manner to form a ring-shaped wire saw, and the second cutting wire is sequentially wound around the first winding device, the first cutting wheel, the second cutting wheel, and the second winding device to form a single-wire cutting saw or a multi-wire cutting saw.

[0006] In summary, the wire EDM integrated machine provided in this application can, on the one hand, form a ring-shaped wire saw by setting a cutting mechanism including a first cutting wheel and a second cutting wheel, allowing the first cutting wire to be arranged in a loop between the two cutting wheels in an end-to-end manner. On the other hand, this application can further include a winding mechanism with a first winding device and a second winding device on the base, allowing the second cutting wire to be sequentially wound around a winding device, a first cutting wheel, a second cutting wheel, and a second winding device to form a single-wire wire saw. Furthermore, this application can configure multiple parallel first wire grooves on the first and second cutting wheels, allowing the second cutting wire to be sequentially wound around a winding device, a first cutting wheel, a second cutting wheel, and a second winding device to form a multi-wire wire saw. By integrating ring-shaped wire cutting, long single-wire cutting, and long multi-wire cutting methods onto the same cutting equipment, the cutting, slicing, or sampling operations on the workpiece can be achieved simply by changing the winding method, improving equipment compatibility and reducing production costs. Attached Figure Description

[0007] The specific features involved in this application are shown in the appended claims. The features and advantages of the invention can be better understood by referring to the exemplary embodiments and accompanying drawings described in detail below. A brief description of the drawings is as follows:

[0008] Figure 1 The diagram shown is a structural schematic of a wire cutting integrated machine in one embodiment of this application.

[0009] Figure 2 This application is displayed. Figure 1 A schematic diagram of the base structure in the illustrated embodiment.

[0010] Figure 3 The diagram shown is a structural schematic of a support component in one embodiment of this application.

[0011] Figure 4 and Figure 5 The diagram shows a cutting process using either a loop cutting method or a long single-line cutting method in one embodiment of this application.

[0012] Figure 6 and Figure 7 The diagram shown is a schematic representation of the cutting process of a long multi-wire cutting method in one embodiment of this application.

[0013] Figure 8 The diagram shown is a structural schematic of the cutting unit in one embodiment of this application.

[0014] Figure 9 The diagram shown is a schematic representation of a loop cutting winding method in one embodiment of this application.

[0015] Figure 10 The diagram shown is a schematic of a second guide wheel disposed on a wheel axle bracket in one embodiment of this application.

[0016] Figure 11 The diagram shown is a schematic representation of a winding method for long single-wire cutting in one embodiment of this application.

[0017] Figure 12 The diagram shown is a structural schematic of the first winding device in one embodiment of this application.

[0018] Figure 13 The diagram shown is a schematic representation of a winding method for long multi-wire cutting in one embodiment of this application.

[0019] Figure 14 The diagram shown is a structural schematic of the cutting frame swing device in one embodiment of this application. Detailed Implementation

[0020] The following specific embodiments illustrate the implementation of this application. Those skilled in the art can easily understand the advantages and technical effects of this application from the content disclosed in this specification. In the following description, some embodiments may be referenced to the accompanying drawings. It should be understood that other embodiments not shown in the drawings may also be used, and changes in specific structures, components or mechanisms, and operations may be made without departing from the spirit and scope of this application. The following detailed description should not be considered limiting, and the scope of the embodiments of this application is limited only by the claims published in this application. The terminology used herein is for describing particular embodiments only and is not intended to limit this application.

[0021] It should be understood that although the terms first, second, or third, etc., may be used herein to describe various elements or parameters in some embodiments, these elements or parameters should not be limited by these terms. These terms are used only to distinguish one element or parameter from another, and not to define the order, priority, or importance of multiple elements. For example, a first connection portion may be referred to as a second connection portion, and similarly, a second connection portion may be referred to as a first connection portion, without departing from the scope of the various described embodiments.

[0022] Furthermore, as used herein, the singular forms “a,” “an,” and “the” are intended to include the plural forms as well, unless the context indicates otherwise. It should be further understood that the terms “comprising,” “including,” and “including” indicate the presence of the stated features, steps, operations, elements, components, items, kinds, and / or groups, but do not exclude the presence, occurrence, or addition of one or more other features, steps, operations, elements, components, items, kinds, and / or groups. For example, a process, method, system, product, or device that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products, or devices. Additionally, the term “and / or,” which may be used hereinafter, describes the relationship between related objects, indicating that three relationships may exist; for example, A and / or B can represent: A alone, A and B simultaneously, and B alone. Furthermore, the character “ / ”, unless otherwise specified, generally indicates that the preceding and following related objects have an “and / or” relationship. Additionally, in the description of embodiments of this application, “multiple” refers to two or more. Furthermore, the terms “or” and “and / or” as used herein are interpreted as inclusive, or mean either one or any combination thereof. Exceptions to this definition only arise when a combination of elements, functions, steps, or operations is inherently mutually exclusive in some way.

[0023] It should also be understood that when an element, such as a layer, region, or substrate, is referred to as being "on" another element or extending "on" another element, the element may be directly on or directly extending onto the other element, or intermediate elements may be present. Conversely, when an element is referred to as being "directly on" another element or "directly extending onto" another element, no intermediate elements are present. It will also be understood that when an element is referred to as being "connected" or "attached" to another element, it may be directly connected or coupled to the other element, or intermediate elements may be present. Conversely, when an element is referred to as being "directly connected" or "directly coupled" to another element, no intermediate elements are present. Furthermore, the term "coupled" generally means physical, mechanical, magnetic, and / or electrical coupling or connection, and in the absence of specific contrasting language, the presence of intermediate elements between coupled or associated items is not excluded.

[0024] Relative terms such as “below,” “above,” “upper,” “lower,” “horizontal,” or “vertical” may be used herein to describe the relationship between one element, layer, or region and another element, layer, or region illustrated in the figures. It will be understood that these terms are intended to cover different device orientations other than those depicted in the figures. In this application, “vertical,” “horizontal,” and “parallel” are defined as including cases within ±10% of the standard definition. For example, vertical typically refers to an angle of 90° relative to a reference line, but in this application, vertical refers to cases including those within 80° to 100°. Unless otherwise expressly stated, comparative quantitative terms (such as “above” and “below”) are intended to cover the concept of equality. As an example, “above” can mean not only “greater than” in a mathematical sense but also “equal to.”

[0025] In view of the technical problems mentioned in the background art, this application discloses an integrated wire EDM machine. It not only uses a cutting mechanism including a first cutting wheel and a second cutting wheel to allow the first cutting wire to be arranged end-to-end between the two cutting wheels to form a ring-shaped wire saw, but also further includes a winding mechanism on the base comprising a first winding device and a second winding device, allowing the second cutting wire to be sequentially wound around a winding device, a first cutting wheel, a second cutting wheel, and a second winding device to form a single-wire wire saw. Furthermore, by arranging multiple parallel first wire grooves on the first and second cutting wheels, the second cutting wire can be sequentially wound around a winding device, a first cutting wheel, a second cutting wheel, and a second winding device to form a multi-wire wire saw. By integrating ring-shaped wire cutting, long single-wire cutting, and long multi-wire cutting methods onto the same cutting equipment, the cutting, slicing, or sampling of workpieces can be achieved simply by changing the winding method, improving equipment compatibility and reducing production costs.

[0026] To clarify the definition of directions and the operational methods between different structures, the embodiments disclosed in this application define a three-dimensional space defined by horizontal, vertical, and perpendicular directions, where the horizontal, vertical, and perpendicular directions are all straight lines and mutually perpendicular. For example, the width extension direction of the base bottom is defined as horizontal (as shown in the figure). Figure 1 The direction of the arrow X in the diagram is used to define the length extension direction of the base as longitudinal (as shown in the diagram). Figure 1 The direction of the arrow Y in the diagram is used to define the vertical direction, also known as the vertical direction or the up-down direction (as shown in the diagram). Figure 1 (The direction of arrow Z in the image).

[0027] To clearly illustrate the positional relationships between the various devices, components, structures, or mechanisms in the embodiments of this application, along the longitudinal direction of the base, the side of the wire EDM machine used for loading (or performing the cutting operation) is defined as the proximal end, and the side of the wire EDM machine used for unloading is defined as the distal end. It should be understood that when the workpiece is moved from one side of the wire EDM machine to the opposite side for cutting operations, the proximal end and the distal end correspond to opposite sides of the wire EDM machine, and are either opposite to each other or far apart.

[0028] In any embodiment provided in this application, the workpiece includes, but is not limited to, various hard and brittle materials such as silicon rods, sapphire, or ceramics. In this application, the wire cutting integrated machine is used to perform cutting operations on the workpiece using wire cutting technology, including severing, slicing, or sampling. The wire cutting technology refers to a cutting mode that uses a high-speed cutting wire to rub against the workpiece to achieve the cutting purpose, and may include, for example, loop cutting, long single-wire cutting, and long multi-wire cutting. The cutting wire can be configured as steel wire or as diamond wire formed by tiny hard particles such as diamond embedded in the cutting steel wire. The circular cutting method refers to the method of cutting the workpiece using a closed-loop cutting line connected end to end. The long single-line cutting method refers to the method of cutting the workpiece using a single non-closed long cutting line arranged on a winding drum or wire storage drum that serves as both a wire feeding and a wire receiving drum. The long multi-line cutting method refers to the method of cutting the workpiece in parallel by using a single cutting line arranged on a winding drum or wire storage drum that serves as both a wire feeding and a wire receiving drum, which is then wound back and forth on a guide wheel or auxiliary wheel to form multiple parallel long cutting lines on the wire saw.

[0029] For example, in some applications where the workpiece has low hardness or requires short cutting time, resulting in minimal wear on the cutting wire, a loop cutting method can be used to reduce winding time and simultaneously improve the utilization rate of the cutting wire and reduce production costs. In other applications where the workpiece is large or has high hardness, leading to severe wear on the cutting wire, a long single-wire cutting method can be used to avoid production interruptions and unnecessary winding work caused by the cutting wire breaking due to severe wear during the cutting process. In other applications where high production efficiency is required for batch cutting of workpieces, such as when slicing or cutting samples, a multi-wire cutting method can be used to create multiple cut surfaces on the workpiece at once, thereby improving work efficiency.

[0030] In subsequent embodiments, the process of performing cutting operations using the above-described cutting methods with the wire EDM machine of this application will be described in detail.

[0031] Please see Figure 1 The image shown is a structural schematic diagram of a wire EDM integrated machine in one embodiment of this application. Figure 1 As shown, the wire EDM machine includes a base 1 and a cutting mechanism 2. The base 1 provides a processing platform for the workpiece to be cut and supports various mechanisms or components for the cutting operation. The cutting mechanism 2 is used to perform the cutting operation on the workpiece.

[0032] In one embodiment, the base 1, as the main component of the wire EDM integrated machine of this application, can be configured with a heavy material such as stainless steel or cast iron to provide robust overall machine stability. In some examples, the base 1 includes fixing or limiting structures for supporting different mechanisms or components in the wire EDM integrated machine, such as a base, column, or frame. In some examples, the base 1 can be a single, integrated base. In some examples, the base 1 can include multiple independent bases.

[0033] Please see Figure 2 This application is displayed as such. Figure 1 The schematic diagram of the base in the illustrated embodiment is as follows: Figure 2 As shown, the base 1 includes a working area 11 for conveying workpieces, the working area 11 extending from the proximal end toward the distal end.

[0034] In some embodiments, the work area 11 may also provide a working space for cutting the workpiece as it moves from the near end to the far end. In some embodiments, the work area 11 may be connected to a loading conveyor or a unloading conveyor, so that the workpiece to be cut can be conveyed to the work area 11 by the loading conveyor for loading, and the cut workpiece can be conveyed from the work area 11 to the unloading conveyor for unloading. In some examples, the loading conveyor or the unloading conveyor may be configured as a support frame and a conveyor belt mounted on the support frame for conveying the workpiece. When the workpiece is placed on the support frame, the movement of the conveyor belt can push the workpiece for loading or unloading. In other embodiments, loading and unloading operations can be performed directly by manual labor or a robotic arm at the near and far ends of the work area 11, respectively.

[0035] In one embodiment, such as Figure 2 As shown, a first guide rail 111 is longitudinally arranged in the working area 11. The workpiece moves along the first guide rail 111 from the near end to the far end to achieve conveying and cutting operations. In some examples, a displacement groove is provided on the working area 11 in the longitudinal direction, the displacement groove running through the entire working area 11, and the first guide rail 111 is longitudinally arranged in the displacement groove. In some examples, in order to achieve stable conveying of the workpiece, the first guide rail 111 is configured as a double guide rail.

[0036] In one embodiment, such as Figure 2 As shown, a support assembly 12 is provided on the working area 11, which is used to support the workpiece for cutting operations. Further, the support assembly 12 is disposed on the first guide rail 111 to support the workpiece as it moves along the proximal end of the first guide rail 111 towards the distal end.

[0037] Please see Figure 3 The image shown is a schematic diagram of the supporting component in one embodiment of this application. Figure 3 As shown, the support assembly 12 includes a support platform 121 and a support platform moving mechanism 122. The support platform 121 is used to place the workpiece, and the support platform moving mechanism 122 is used to drive the support platform 121 to move longitudinally to feed the workpiece. In some examples, the top of the support platform 121 has a bearing surface, the shape of which can be determined according to the shape of the contact surface between the workpiece and the support platform 121. For example, if the bottom surface of the contact surface between the workpiece and the support platform 121 is a plane, the bearing surface can also be configured as a plane; if the contact surface between the workpiece and the support platform 121 is an arc surface or a circumferential surface, the bearing surface can also be configured as an arc surface. The embodiments of this application are described using a plane as an example, and should not be construed as limiting this application.

[0038] Of course, in some other embodiments, the support component 12 may also be configured as a clamp for holding the workpiece A and moving it from the proximal end to the distal end along the working area 11.

[0039] In one embodiment, the platform moving mechanism 122 includes a transport seat 123 and a transport translation mechanism 124. The transport seat 123 spans across the first guide rail 111 and is connected to the platform 121. The transport translation mechanism 124 is used to drive the transport seat 123 to move longitudinally on the first guide rail 111. Please refer to... Figure 2 and Figure 3 The component translation mechanism 124 includes a component translation slider 1241 disposed at the bottom of the component carrier 123 and cooperating with the first guide rail 111, a component translation lead screw 1242 cooperating with the component translation slider 1241, and a component translation motor 1243 connected to the component translation lead screw 1242 for driving the component translation slider 1241 to translate along the first guide rail 111. The component translation drive motor 1243 drives the component translation lead screw 1242 to rotate forward and backward to drive the component carrier 123 to move along the first guide rail 111. Figure 3 The arrow indicates longitudinal movement. For example, the component translation motor 1243 drives the component translation screw 1242 to rotate forward, causing the support platform 121 to move along the first guide rail 111 from the near end to the far end; the component translation motor 1243 drives the component translation screw 1242 to rotate in reverse, causing the support platform 121 to move along the first guide rail 111 from the far end to the near end.

[0040] In some other examples, the component translation mechanism 124 may also be configured to include a component translation rack, a component translation gear, and a gear drive motor. The component translation rack is longitudinally arranged in the working area 11, the component translation gear is mounted on the component seat 123 and meshes with the component translation rack, and the gear drive motor is used to drive the component translation gear to rotate so that the associated component seat 123 moves along the component translation rack, thereby realizing the longitudinal movement of the component seat 123 along the first guide rail 111. For example, the gear drive motor drives the component translation gear to rotate forward, driving the component seat 123 to move the support platform 121 along the first guide rail 111 from the near end to the far end; the gear drive motor drives the component translation gear to rotate in reverse, driving the component seat 123 to move the support platform 121 along the first guide rail 111 from the far end to the near end.

[0041] In one embodiment, such as Figure 3As shown, the support assembly 12 also includes a platform rotation mechanism 125, which drives the platform 121 to rotate to switch the cutting direction. In one implementation, the platform rotation mechanism 125 is configured to include a rotating shaft located at the center of the platform 121, on which an angle encoder and a servo motor are mounted. The angle encoder provides measurement and feedback of the rotation angle of the platform 121, and the servo motor provides rotational power to the rotating shaft. In some examples, the servo motor can drive the rotating shaft to rotate clockwise and counterclockwise.

[0042] In some implementations, the carrier table rotation mechanism 125 may further include a brake positioner, which is used to stop the rotational movement of the carrier table 121. Simultaneously, it prevents the carrier table 121 from rotating due to external forces when it stops moving, thereby further ensuring cutting accuracy. In one example, the brake positioner may be configured to include a brake actuator and a locking pin. The brake actuator controls the movement of the locking pin to lock it onto the carrier table 121, thereby stopping the rotational movement of the carrier table 121.

[0043] In one embodiment, the rotation angle of the support platform 121 is configured to be 90°. Specifically, please refer to... Figures 4 to 7 ,in, Figure 4 and Figure 5 The diagram shows a cutting process using either a loop cutting method or a long single-line cutting method in one embodiment of this application. Figure 6 and Figure 7 This diagram illustrates the cutting process of a long multi-wire cutting method in one embodiment of this application. It should be noted that... Figures 4 to 7 The description of the cutting process, using the example of cutting a vertically placed cylindrical workpiece A (such as sapphire) to form multiple square workpieces, should not be construed as limiting this application. Furthermore, Figure 4 and Figure 5 The single line L1 in the diagram illustrates the cutting line used to cut workpiece A in either loop cutting or long single-line cutting methods. Figure 6 and Figure 7 The line group L2 in the diagram illustrates the cutting line group used to cut workpiece A in a long multi-wire cutting method.

[0044] exist Figure 4 and Figure 5In the illustrated embodiment, workpiece A is placed on the support platform 121 of the support assembly 12. Workpiece A is first cut by the cutting line L1. Then, workpiece A can be moved a predetermined distance towards the distal end under the drive of the support platform moving mechanism 122 for a second cut. This process is repeated, with the cutting line L1 performing five cuts to form workpiece B, which comprises multiple sheet-like workpieces. Then, workpiece B is rotated 90° clockwise or counterclockwise under the drive of the support platform rotating mechanism 125, and the cutting line L1 is used to cut workpiece B multiple times in sequence, finally forming multiple square workpieces.

[0045] For example, in Figure 4 and Figure 5 In the provided cutting method, the workpiece can also be a horizontally placed workpiece, such as a long strip silicon rod placed horizontally or vertically. For example, when it is necessary to cut the silicon rod, a ring cutting method or a long single-line cutting method can be used to cut the silicon rod. In this implementation scenario, it is not necessary to drive the silicon rod to rotate by the carrier table rotation mechanism 125.

[0046] For example, in Figure 4 and Figure 5 In the provided cutting method, the workpiece can also be a crystalline silicon ingot. For example, when it is necessary to perform a square cut on the crystalline silicon ingot, a circular cutting method or a long single-line cutting method can be used to cut the crystalline silicon ingot. In this implementation scenario, the crystalline silicon ingot is rotated 90° clockwise or counterclockwise under the drive of the bearing table rotation mechanism 125, and then the workpiece B is cut multiple times in sequence using the cutting line L1, finally forming multiple small-sized crystalline silicon ingots.

[0047] exist Figure 6 and Figure 7 In the illustrated embodiment, workpiece A is placed on the support platform 121 of the support assembly 12. Workpiece A is cut in one pass by the cutting line group L2 (each adjacent cutting line has a predetermined distance between it) to form workpiece B, which comprises multiple sheet-like workpieces. Then, workpiece B is rotated 90° clockwise or counterclockwise by the support platform rotation mechanism 125, and workpiece A is cut again in one pass by the cutting line group L2 to form multiple small-sized square workpieces. The predetermined distance is determined based on the required specifications of the square workpieces.

[0048] For example, in Figure 6 and Figure 7 In the provided cutting method, the workpiece can also be a horizontally placed workpiece, such as a long strip silicon rod placed horizontally or vertically. For example, when it is necessary to cut the silicon rod to cut it and also to cut a sample of the silicon rod, multi-wire cutting can be achieved by adjusting the spacing between the cutting wire saw and the sampling wire saw in the cutting wire group. In this implementation scenario, it is not necessary to make the silicon rod rotate by the rotating mechanism 125 of the support table.

[0049] For example, in Figure 6 and Figure 7 In the provided cutting method, the workpiece can also be a horizontally placed workpiece, such as a long strip silicon rod placed horizontally or vertically. For example, when it is necessary to slice the silicon rod, the thickness of the slice can be achieved by adjusting the spacing of the parallel cutting lines in the cutting line group. In this implementation scenario, it is not necessary to drive the silicon rod to rotate by the bearing table rotation mechanism 125.

[0050] In one embodiment, such as Figure 1 As shown, the cutting mechanism 2 includes a frame 21, a cutting mounting structure 22, and a cutting unit 23. The frame 21 spans the working area 11, the cutting mounting structure 22 is vertically mounted on the frame 21, and the cutting unit 23 is mounted on the cutting mounting structure 22. Specifically, the lifting and lowering movement of the cutting mounting structure 22 on the frame 21 drives the cutting unit 23 to lift and lower to perform the cutting operation.

[0051] In one embodiment, the frame 21 serves as the carrier for the cutting unit 23, and its specific form can be a beam, column, plate frame, bracket, etc., and its material can be configured as a high-strength material such as stainless steel or cast iron. Figure 1 and Figure 2 In the example shown, the lower side of the frame 21 has a recess and is mounted on a support plate 112 on the base 1, thereby reserving a working space for the workpiece to be cut.

[0052] In one embodiment, such as Figure 1 As shown, the cutting mounting structure 22 can be configured as a mounting plate. The side of the mounting plate facing the near end is connected to the cutting unit 23, and the side facing the far end is connected to the frame 21 via a lifting drive structure 24. In some embodiments, the lifting drive structure 24 can be configured to include a lifting guide rail, a lifting slider, and a lifting drive unit. The lifting guide rail is vertically disposed on the frame 21, and the lifting slider is disposed on the lifting guide rail and connected to the cutting mounting structure 22. Further, the lifting drive unit can be configured to include a lifting screw and a lifting drive motor. The lifting screw is connected to the lifting slider, and the lifting drive motor is used to drive the lifting screw to rotate so that the lifting slider moves along the lifting guide rail, thereby driving the cutting unit 23 to perform lifting and lowering movements for cutting operations. In some examples, the lifting drive structure 24 also includes a limiting block (not shown) to prevent excessive displacement of the cutting unit 23 during vertical movement caused by the cutting mounting structure 22.

[0053] Please see Figure 8 The image shown is a schematic diagram of the cutting unit in one embodiment of this application. Figure 8As shown, the cutting unit 23 includes a cutting frame 231, a first cutting wheel 232, and a second cutting wheel 233. The cutting frame 231 is disposed on the cutting mounting structure 22, and the first cutting wheel 232 and the second cutting wheel 233 are respectively located on opposite sides of the working area 11 so that the cutting wire wound between the first cutting wheel 232 and the second cutting wheel 233 forms a wire saw. In some examples, the lower side of the cutting frame 231 has an opening to cooperate with the recess on the aforementioned frame 21 to form a clearance space for cutting the workpiece. In some embodiments, the cutting wheel may also be referred to as a cutting roller.

[0054] The following combination Figure 1 , Figures 8 to 10 The winding method and specific structure of the cutting unit when using the ring cutting method are described in detail.

[0055] Please see Figure 9 The image shows a schematic diagram of a loop-cut winding method in one embodiment of this application. Figure 9 As shown, the cutting unit 23, in addition to the cutting frame 231, the first cutting wheel 232, and the second cutting wheel 233, also includes a first cutting line 234 wound between the first cutting wheel 232 and the second cutting wheel 233. The first cutting line 234 is arranged in a loop between the first cutting wheel 232 and the second cutting wheel 233 in an end-to-end manner to form a ring-shaped cutting wire saw 2341. The ring-shaped cutting wire saw 2341 can perform cutting operations on the workpiece located on the support platform 121 by moving the cutting mounting structure 22 up and down on the frame 21. In one cutting operation of the up and down movement, the ring-shaped cutting wire saw 2341 completely passes through the workpiece from top to bottom to achieve one cut.

[0056] In one embodiment, such as Figure 8 As shown, the cutting unit 23 further includes a cutting wheel drive structure 235 disposed on the cutting frame 231. The cutting wheel drive structure 235 is used to drive the first cutting wheel 232 or the second cutting wheel 233 to rotate at high speed to drive the first cutting wire 234 to perform cutting operations. In some examples, the cutting wheel drive structure 235 is configured as a rotary motor, which has a power output shaft and the power output shaft is shaft-connected to the first cutting wheel 232 or the second cutting wheel 233. In this way, the first cutting wire 234 can be driven by the first cutting wheel 232 or the second cutting wheel 233 to run at high speed along the winding direction. Of course, the cutting wire drive device can also be other drive sources such as a hydraulic motor, as long as it can drive the first cutting wire 234 to run. This application does not impose any restrictions.

[0057] In the embodiments of this application, both the first cutting wheel 232 and the second cutting wheel 233 are connected to a cutting wheel drive structure 235. During the circular cutting operation, the cutting wheel drive structures 235 connected to the first cutting wheel 232 and the second cutting wheel 233 operate synchronously. In some other embodiments, a cutting wheel drive structure 235 may be provided only on one cutting wheel, and the other cutting wheel may be passively moved along the winding direction by being pulled by the first cutting wire 234 wound on it.

[0058] In one embodiment, such as Figure 8 and Figure 9 As shown, the cutting unit 23 also includes a first guide wheel 236 and a second guide wheel 237. Figure 9 In the illustrated embodiment, the first cutting line 234 is sequentially wound around the first cutting wheel 232, the second cutting wheel 233, the second guide wheel 237, and the first guide wheel 236 to form the annular cutting wire saw 2341. The first cutting wheel 232, the second cutting wheel 233, the second guide wheel 237, the first guide wheel 236, and the first cutting line 234 generally form a quadrilateral.

[0059] In one embodiment, such as Figure 9 As shown, the wheelbase between the first cutting wheel 232 and the second cutting wheel 233 is less than the wheelbase between the first guide wheel 236 and the second guide wheel 237. This ensures that the wire saw wound between the first cutting wheel 232 and the second cutting wheel 233 maintains a relatively short length, which helps to control the tension of the wire saw within a reasonable range during the cutting process. The wheelbase refers to the distance between the centers of the two cutting wheels or the two guide wheels. That is, in this embodiment, the quadrilateral formed by the lines connecting adjacent wheels among the first cutting wheel 232, the second cutting wheel 233, the second guide wheel 237, and the first guide wheel 236 is approximately a trapezoid, and the length of the base of the trapezoid is less than the length of the top side. Of course, in some other embodiments, the quadrilateral can be a rectangle or any other quadrilateral.

[0060] In one embodiment, such as Figure 8 As shown, the first guide wheel 236 and the second guide wheel 237 are respectively mounted on a wheel axle bracket 238 and located on opposite sides of the cutting frame 231. Specifically, taking the second guide wheel 237 as an example, please refer to... Figure 10 The image shows a schematic diagram of a second guide wheel disposed on a wheel axle bracket in one embodiment of this application. In this embodiment, the wheel axle bracket 238 is generally Z-shaped in the longitudinal direction, and the second guide wheel 237 is disposed in the middle position of the Z-shaped structure.

[0061] In one embodiment, such as Figure 8As shown, the first guide wheel 236 and the second guide wheel 237 are respectively connected to a tension detection mechanism 239, which is used to detect and adjust the tension of the first cutting wire 234. It should be understood that in wire cutting operations, the tension on the cutting wire affects the yield and processing accuracy. The tension detection mechanism can maintain the tension on the cutting wire at a preset threshold, which is a constant value or a range of values ​​centered on a constant value.

[0062] In one embodiment, the tension detection mechanism 239 includes a tension sensor and a tension drive unit. The tension sensor is disposed on a first guide wheel 236 or a second guide wheel 237, and the tension drive unit is associated with the tension sensor for tension adjustment. During the cutting process, the tension sensor continuously detects the tension value on the first cutting line 234 in real time or at regular intervals, and outputs a drive signal to the tension drive unit when the tension value is less than or exceeds a preset tension threshold. The tension drive unit can then tension or relax the first cutting line 234 according to the drive signal to adjust the tension of the cutting line.

[0063] Still with Figure 10 For example, in this embodiment, the tension drive unit 2391 includes a tension drive part 2392 and a connecting rod assembly 2393. The tension drive part 2392 is laterally disposed on the top of the wheel axle bracket 238, and the connecting rod assembly 2393 is connected to the tension drive part 2392 to drive the first guide wheel 236 or the second guide wheel 237 to produce a position change. Figure 10 In the example shown, the tension drive unit 2392 is configured as a cylinder with a telescopic rod. The telescopic rod is connected to one end of the connecting rod assembly 2393 to drive the second guide wheel 237 to rotate eccentrically around a fixed axis, thereby causing the second guide wheel 237 to change position to adjust the tension.

[0064] Specifically, when the tension sensor detects that the tension value on the first cutting line 234 is less than the tension threshold, it outputs a tightening drive signal to the tension drive unit 2392, causing the cylinder to drive the telescopic rod to extend, thereby causing the connecting rod assembly 2393 to rotate clockwise, and further causing the second guide wheel 237 to expand towards the outside of the quadrilateral to tighten the first cutting line 234. When the tension sensor detects that the tension value on the first cutting line 234 exceeds the tension threshold, it outputs a relaxation drive signal to the tension drive unit 2392, causing the cylinder to drive the telescopic rod to retract, thereby causing the connecting rod assembly 2393 to rotate counterclockwise, and further causing the second guide wheel 237 to retract towards the inside of the quadrilateral to relax the first cutting line 234.

[0065] In some other embodiments, the tension drive unit 2391 may be configured to include a counterweight, and the tension of the first cutting line 234 may be adjusted by controlling the lowering or raising of the counterweight. For example, when the tension of the first cutting line 234 is to be increased, the counterweight is lowered to drive the second guide wheel 237 to expand outward toward the quadrilateral. When the tension of the first cutting line 234 is to be decreased, the counterweight is raised to drive the second guide wheel 237 to contract inward toward the quadrilateral.

[0066] In some examples, the counterweight may be a counterweight block, and the number of the counterweight blocks may vary according to the requirements of the tension adjustment of the first cutting line 234. For example, when the tension of the first cutting line 234 is increased, the number of counterweight blocks may be increased, and when the tension of the first cutting line 234 is decreased, the number of counterweight blocks may be decreased.

[0067] The following combination Figure 1 , Figure 8 , Figures 10 to 12 The winding method and specific structure of the cutting unit when using the long single-wire cutting method are described in detail.

[0068] Please see Figure 11 The image shows a schematic diagram of a winding method for cutting a long single wire in one embodiment of this application. For example... Figure 11 As shown, the cutting unit 23, in addition to including the cutting frame 231, the first cutting wheel 232, and the second cutting wheel 233, also includes a second cutting line 240 wound between the first cutting wheel 232 and the second cutting wheel 233. Figure 11 In the illustrated embodiment, the second cutting wire 240 is wound in a non-closed manner between the first cutting wheel 232 and the second cutting wheel 233 to form a single-wire cutting saw 2401. The single-wire cutting saw 2401 can perform cutting operations on the workpiece located on the support platform 121 by moving the cutting mounting structure 22 up and down on the frame 21. In one cutting operation of the up and down movement, the single-wire cutting saw 2401 completely passes through the workpiece from top to bottom to achieve one cut.

[0069] In embodiments where cutting operations are performed using long single-wire cutting or long multi-wire cutting, such as Figure 1 and Figure 11 As shown, the wire cutting machine may further include a winding mechanism 3. In this embodiment, the winding mechanism 3 is used to wind and unwind the second cutting wire 240.

[0070] In one embodiment, such as Figure 1 and Figure 11 As shown, the winding mechanism 3 includes a first winding device 31 and a second winding device 32. Figure 1As shown, the first winding device 31 and the second winding device 32 are respectively disposed on opposite sides of the base 1. For example, one end of the second cutting wire 240 is wound around the first winding device 31 and the other end is wound around the second winding device 32. The first winding device 31 is used to store unused second cutting wire 240, and the second winding device 32 is used to recycle used second cutting wire 240. Further, as... Figure 11 As shown, the second cutting wire 240 is sequentially wound around the first winding device 31, the first cutting wheel 232, the second cutting wheel 233 and the second winding device 32 to form the single-wire cutting wire saw 2401.

[0071] It should be noted here that, Figure 11 To facilitate the demonstration of the winding process of the second cutting line 240, the structures of the first winding device 31 and the second winding device 32 have been simplified, and this should not be construed as a limitation of this application.

[0072] Taking the first winding device as an example, please refer to [link / reference]. Figure 12 The image shown is a schematic diagram of the structure of the first winding device in one embodiment of this application. Figure 12 As shown, the first winding device 31 includes a winding drum 311 and a winding drive structure 312. The winding drive structure 312 drives the winding drum 311 to rotate, thereby driving the second cutting wire 240. In some examples, the winding drum 311 has a cylindrical structure, and the winding drive structure 312 is configured to include a rotary motor, the power output shaft of which is connected to the axis of the winding drum 311. Thus, by the rotary motor driving the winding drum 311 to rotate, it causes the winding or unwinding of the wire, thereby causing the second cutting wire 240 to run at high speed. In some examples, the winding drive structure 312 may further include a speed reducer connected to the rotary motor for controlling the speed of winding or unwinding the wire.

[0073] In one embodiment, both the first winding device 31 and the second winding device 32 are equipped with a winding drive structure 312. During the cutting operation, the winding drive structures 312 of the first winding device 31 and the second winding device 32 move synchronously. In another embodiment, the winding drive structure 312 may be configured only in the winding device used for taking in the wire, and the other winding device passively releases the wire by being pulled by the second cutting wire 240 wound on it.

[0074] In one embodiment, the first winding device 31 or the second winding device 32 may further include a winding moving structure. Taking the first winding device 31 as an example, for instance... Figure 12As shown, the first winding device 31 includes a winding moving structure 313 for driving the winding drum 311 to translate longitudinally. In this embodiment, the winding moving structure 313 enables the second cutting line 240 to be evenly distributed on the winding drum 311 during the winding and unwinding process, so as to form a neat and tight line layer, thereby ensuring the stability of the tension on the second cutting line 240 during the cutting process.

[0075] In one embodiment, when the cutting wire is steel wire, the steel wire wound on the winding drums of the first winding device 31 and the second winding device 32 can be multi-layered to store longer or more steel wires; in another embodiment, when the cutting wire is diamond wire, the diamond wire wound on the winding drums of the first winding device 31 and the second winding device 32 is single-layered to avoid unnecessary friction between the diamond wires when the winding drums rotate at high speed, which would result in the loss of tiny hard particles on the diamond wires.

[0076] In one embodiment, such as Figure 12 As shown, the winding moving structure 313 includes a longitudinal translation guide rail 3131 disposed on the base 1, a longitudinal translation slider 3132 disposed at the bottom of the winding cylinder 311 and connected to the longitudinal translation guide rail 3131, and a longitudinal translation drive unit 3133 connected to the longitudinal translation slider 3132 for translating the longitudinal translation slider 3132 on the longitudinal translation guide rail 3131. In one example, the longitudinal translation drive unit 3133 includes a longitudinal translation lead screw and a longitudinal translation drive motor. The longitudinal translation drive motor drives the longitudinal translation lead screw to rotate forward and backward to drive the longitudinal translation slider 3132 to move along the longitudinal translation guide rail 3131, thereby driving the winding cylinder 311 to move longitudinally. For example, the longitudinal translation drive motor drives the longitudinal translation screw to rotate forward, causing the winding drum 311 to move from the near end to the far end along the longitudinal translation guide rail 3131; the longitudinal translation drive motor drives the longitudinal translation screw to rotate in reverse, causing the winding drum 311 to move from the far end to the near end along the longitudinal translation guide rail 3131.

[0077] In one embodiment, the first guide wheel 236 and the second guide wheel 237 are respectively connected to a tension detection mechanism 239, which is used to detect and adjust the tension of the second cutting wire 240. The specific structures of the first guide wheel 236, the second guide wheel 237, and the tension detection mechanism 239 can be found in the descriptions of the foregoing embodiments, and will not be repeated here.

[0078] In one embodiment, the first guide wheel 236 and the second guide wheel 237 are used to reverse the direction of the second cutting line 240. Specifically, as... Figure 11As shown, the second cutting wire 240 is sequentially wound around the first winding device 31, the first guide wheel 236, the first cutting wheel 232, the second cutting wheel 233, the second guide wheel 237, and the second winding device 32 to form the single-wire cutting saw 2401 between the first cutting wheel 232 and the second cutting wheel 233.

[0079] In one embodiment, such as Figure 11 As shown, the wheelbase between the first cutting wheel 232 and the second cutting wheel 233 is smaller than the wheelbase between the first guide wheel 236 and the second guide wheel 237. In this embodiment, the angle between the infeed direction and the outfeed direction of the second cutting wire 240 wound on the first cutting wheel 232 or the second cutting wheel 233 can be made acute, thereby increasing the contact area between the second cutting wire 240 and the first cutting wheel 232 or the second cutting wheel 233, thus preventing the second cutting wire 240 from slipping and ensuring cutting accuracy.

[0080] The following combination Figure 1 , Figure 8 , Figure 10 , Figure 13 The winding method and specific structure of the cutting unit when using the long multi-wire cutting method are described in detail.

[0081] In one embodiment, the first cutting wheel 232 and the second cutting wheel 233 have a plurality of mutually parallel first wire grooves. In this embodiment, the plurality of first wire grooves are used to wind around the second cutting wire 240 to form a multi-wire cutting saw for performing cutting operations between the first cutting wheel 232 and the second cutting wheel 233, specifically as shown in the figure. Figure 6 and Figure 7 The cutting line group L2 is shown. In one example, the distance between two adjacent first grooves on the first cutting wheel 232 is equal to the distance between two adjacent first grooves on the second cutting wheel 233, so that the multiple first grooves on each cutting wheel correspond one-to-one, thereby ensuring that the cut segments formed by the cutting satisfy a mutually parallel spatial relationship.

[0082] Please see Figure 13 The diagram shows a winding method for long multi-wire cutting in one embodiment of this application. Figure 13 As shown, the second cutting wire 240 is sequentially wound around the first winding device 31, the first cutting wheel 232, the second cutting wheel 233, and the second winding device 32 to form a multi-wire cutting saw 2402. The multi-wire cutting saw 2402 operates at high speed driven by the winding drive structure 312 of the first winding device 31 and / or the second winding device 32, and can perform cutting operations on the workpiece located on the support platform 121 as the cutting mounting structure 22 moves up and down on the frame 21. In one cutting operation of the lifting and lowering movement, the multi-wire cutting saw 2402 completely passes through the workpiece from top to bottom to achieve one cut.

[0083] Specifically, in Figure 13 In the embodiment shown, the second cutting wire 240 is sequentially wound around the first winding device 31, the first guide wheel 236, the first cutting wheel 232, the corresponding first grooves on the second cutting wheel 233, the second guide wheel 237, and the second winding device 32 to form the multi-wire cutting saw 2402 between the first cutting wheel 232 and the second cutting wheel 233.

[0084] In some examples, the thickness of the first cutting wheel 232 or the second cutting wheel 233 in the longitudinal direction is any value between 30 mm and 70 mm, for example, approximately 30 mm, 31 mm, 32 mm, 33 mm, 34 mm, 35 mm, 36 mm, 37 mm, 38 mm, 39 mm, 40 mm, 41 mm, 42 mm, 43 mm, 44 mm, 45 mm, 46 mm, 47 mm, 48 mm, 49 mm, 50 mm, 51 mm, 52 mm, 53 mm, 54 mm, 55 mm, 56 mm, 57 mm, 58 mm, 59 mm, 60 mm, 61 mm, 62 mm, 63 mm, 64 mm, 65 mm, 66 mm, 67 mm, 68 mm, 69 mm, or 70 mm, etc. Preferably, the thickness of the first cutting wheel 232 or the second cutting wheel 233 in the longitudinal direction is 50 mm.

[0085] In some examples, the spacing between two adjacent first grooves on the first cutting wheel 232 or the second cutting wheel 233 is any value between 1 mm and 5 mm, for example, approximately 1 mm, 1.1 mm, 1.2 mm, 1.3 mm, 1.4 mm, 1.5 mm, 1.6 mm, 1.7 mm, 1.8 mm, 1.9 mm, 2 mm, 2.1 mm, 2.2 mm, 2.3 mm, 2.4 mm, 2.5 mm, 2.6 mm, 2.7 mm, 2.8 mm, 2.9 mm, 3 mm, 3.1 mm, 3.2 mm, 3.3 mm, 3.4 mm, 3.5 mm, 3.6 mm, 3.7 mm, 3.8 mm, 3.9 mm, 4 mm, 4.1 mm, 4.2 mm, 4.3 mm, 4.4 mm, 4.5 mm, 4.6 mm, 4.7 mm, 4.8 mm, 4.9 mm, or 5 mm, etc. It should be noted that the specific spacing between two adjacent first grooves is determined according to the actual product specifications to be cut, and this application does not impose any restrictions on this. For example, when slicing a workpiece, if the required product thickness is 5mm, then the spacing should be set to 5mm.

[0086] It should be understood that the entry position of the second cutting wire 240 when entering the first cutting wheel 232 and the exit position when leaving the second cutting wheel 233 should be on the same plane in the vertical direction to avoid the formed cutting wire saw shifting within the first wire groove, thereby avoiding wear of the second cutting wire 240. In view of this, in one embodiment, as... Figure 10 As shown, a guide wheel moving structure 241 is connected to the first guide wheel 236 and the second guide wheel 237 respectively. The guide wheel moving structure 241 is used to drive the first guide wheel 236 or the second guide wheel 237 to translate longitudinally in order to adjust the inlet and outlet positions of the second cutting line 240.

[0087] In one embodiment, such as Figure 10 As shown, the guide wheel moving structure 241 includes a frame 2411, a moving guide rail 2412, a moving slider 2413, and a moving drive unit 2414. The frame 2411 is disposed on the cutting frame 231, the moving guide rail 2412 is longitudinally disposed on the top of the frame 2411, the moving slider 2413 is disposed on the bottom of the wheel axle bracket 238 and connected to the moving guide rail 2412, and the moving drive unit 2414 is used to drive the moving slider 2413 to move longitudinally along the moving guide rail 2412 to drive the first guide wheel 236 or the second guide wheel 237 to move longitudinally.

[0088] In one embodiment, the moving drive unit 2414 is configured to include a moving rack parallel to the moving guide rail 2412, a moving gear meshing with the moving rack, and a drive motor for driving the moving gear to rotate. When the drive motor drives the moving gear to rotate, it drives the moving rack to move in the longitudinal direction, thereby driving the moving slider 2413 to move longitudinally along the moving guide rail 1412, so that the wheel axle support 238 moves longitudinally relative to the frame 2411, thereby realizing the movement of the first guide wheel 236 or the second guide wheel 237.

[0089] Of course, the specific structure of the mobile drive unit 2414 can be changed in other ways. For example, in some embodiments, the mobile drive unit 2414 can be configured to use a chain conveyor or a conveyor belt conveyor.

[0090] In one embodiment, such as Figure 8 and Figure 13 As shown, the cutting frame 231 is also provided with a first auxiliary wheel 242 and a second auxiliary wheel 243. The first auxiliary wheel 242 is located between the first guide wheel 236 and the first cutting wheel 232, and the second auxiliary wheel 243 is located between the second guide wheel 237 and the second cutting wheel 233. In this embodiment, the first auxiliary wheel 242 and the second auxiliary wheel 243 are used to assist the two cutting wheels in winding the second cutting wire 240 to form the multi-wire cutting saw 2402.

[0091] In one embodiment, both the first auxiliary wheel 242 and the second auxiliary wheel 243 have a plurality of second grooves, each corresponding one-to-one with a plurality of first grooves. Specifically, as shown... Figure 13 As shown, the second cutting wire 240 is sequentially wound around the first winding device 31, the first guide wheel 236, the first auxiliary wheel 242, the first cutting wheel 232, the second cutting wheel 233, the second auxiliary wheel 243, the second guide wheel 237, and the second winding device 32 to form a multi-wire cutting saw 2402.

[0092] In one embodiment, such as Figure 13 As shown, the wheelbase between the first auxiliary wheel 242 and the second auxiliary wheel 243 is less than the wheelbase between the first cutting wheel 232 and the second cutting wheel 233. In this embodiment, the angle between the wire infeed direction and the wire outfeed direction of any wire saw in the multi-wire cutting saw 2402 on the first cutting wheel 232 or the second cutting wheel 233 is an acute angle, thereby increasing the contact area between each wire saw and the first cutting wheel 232 or the second cutting wheel 233, ensuring the firmness of the cutting wire winding.

[0093] It should be understood that in certain application scenarios, it is necessary for the wire saw to oscillate back and forth to perform wobbling cuts on the workpiece, thereby improving cutting efficiency and quality. In some examples, such as when cutting high-hardness and brittle workpieces like sapphire or quartz, wobbling cuts can prevent chipping caused by uneven force distribution. In other examples, such as when high quality is required for the cut surface, wobbling cuts can prevent scratches from forming on the cut surface. Based on this, in one embodiment, such as... Figure 8 As shown, the cutting unit 23 also includes a cutting frame swing device 244, which is used to swing and cut the workpiece.

[0094] Please see Figure 14 and combined Figure 8 , Figure 14 The diagram shown is a structural schematic of the cutting frame swing device in one embodiment of this application. Figure 8 and Figure 14 As shown, the cutting frame oscillation device 244 includes an arc-shaped guide rail 2441, an arc-shaped slider 2442, and an oscillation drive structure 2443. The arc-shaped guide rail 2441 is disposed on the top of the cutting mounting structure 22. The arc-shaped slider 2442 is connected to the arc-shaped guide rail 2441 and disposed on the cutting frame 231. The oscillation drive structure 2443 is used to drive the arc-shaped slider 2442 to move along the arc-shaped guide rail 2441 to cause the cutting frame 231 to oscillate left and right. It should be noted here that... Figure 14For the purpose of showing the specific structure of the cutting frame swing device 244, the cutting installation structure 22 has been omitted and should not be regarded as a limitation of this application.

[0095] In one embodiment, such as Figure 14 As shown, the swing drive structure 2443 includes a rack 2444, a gear 2445, and a swing drive motor 2446. The rack 2444 is mounted on the cutting frame 231, the gear 2445 meshes with the rack 2444, and the swing drive motor 2446 is associated with the gear 2445 and is used to drive the gear 2445 to move on the rack 2444, thereby causing the cutting frame 231 to swing left and right along the arc-shaped guide rail 2441. For example, the oscillating drive motor 2446 drives the gear 2445 to rotate counterclockwise, moving it to the left on the rack 2444, thereby causing the arc-shaped slider 2442 to move to the left on the arc-shaped guide rail 2441, which in turn causes the cutting frame 231 to oscillate to the left. Conversely, the oscillating drive motor 2446 drives the gear 2445 to rotate clockwise, moving it to the right on the rack 2444, thereby causing the arc-shaped slider 2442 to move to the right on the arc-shaped guide rail 2441, which in turn causes the cutting frame 231 to oscillate to the right. In some examples, the oscillation angle of the cutting frame 231 is any value between 5° and 10°, for example, approximately 5°, 6°, 7°, 8°, 9°, or 10°.

[0096] It should be understood that the performance of products obtained by cutting crystal structures such as silicon rods or quartz in subsequent processes is strongly dependent on crystal orientation. For example, in the photovoltaic field, if the cut surface of the product deviates from the crystal orientation, it will lead to a decrease in electrical performance and a reduction in light absorption efficiency; in the semiconductor field, if the cut surface of the product deviates from the crystal orientation, it will affect the etching rate or carrier mobility, etc. In view of this, in one embodiment, the wire cutting machine further includes a crystal orientation detection mechanism (not shown), which is used to determine the cutting posture of the workpiece. The posture refers to the placement position and orientation angle of the workpiece when it is placed on the support table 121 for cutting, which is used to ensure that the cutting process of the above-mentioned circular wire cutting saw, single wire cutting saw, or multi-wire cutting saw can be carried out in a predetermined direction to meet the cutting accuracy and process requirements.

[0097] In some embodiments, the crystal orientation detection mechanism may be configured to include a detection unit for detecting the workpiece's pose before cutting. In some examples, the detection unit may be configured to detect the workpiece using methods such as X-ray diffraction or laser polarization detection. In other embodiments, the crystal orientation detection mechanism may further include an adjustment unit for adjusting the workpiece's pose based on the detection results of the detection unit to ensure the correct orientation of the workpiece. In some examples, the adjustment unit may be configured to include the aforementioned carrier stage rotation mechanism 125, which adjusts the workpiece's pose by rotating the carrier stage 121. In other examples, the adjustment unit may be configured to include a gripping robot that can grip the workpiece and move it in multiple directions to adjust the pose.

[0098] When using the wire EDM machine described in this application for cutting operations, the winding method of the cutting wire can be changed to selectively form a closed-loop cutting wire saw, a single-wire cutting wire saw, or a multi-wire cutting wire saw, thereby performing cutting operations such as severing, slicing, or sampling on the workpiece. Specifically, the workpiece is first placed on the support platform 121, and after being moved to the cutting position by the support platform moving mechanism 122, the closed-loop cutting wire saw, single-wire cutting wire saw, or multi-wire cutting wire saw can achieve one cut on the workpiece located on the support platform 121 by the lifting and lowering movement of the cutting mounting structure 22 on the frame 21, and the swinging of the cutting frame 231 driven by the cutting frame swinging device 244. The number of cuts is determined according to the number of cutting wire saws or the size and specifications of the workpiece. If multiple cuts are required, the support platform moving mechanism 122 drives the workpiece to move longitudinally on the first guide rail 111 to the next cutting position, and then the corresponding cutting wire saw cuts the workpiece once. After the cutting operation is completed, the finished product is moved to the far end of the working area 11 by the support platform moving mechanism 122 for unloading.

[0099] In summary, the wire EDM integrated machine provided in this application, in a first aspect, can be configured with a cutting mechanism including a first cutting wheel and a second cutting wheel, allowing the first cutting wire to be arranged in a loop between the two cutting wheels in an end-to-end manner to form a ring-shaped wire saw. In another aspect, it can be further configured with a winding mechanism including a first winding device and a second winding device on the base, allowing the second cutting wire to be sequentially wound around a winding device, a first cutting wheel, a second cutting wheel, and a second winding device to form a single-wire wire saw. In yet another aspect, it can be configured with multiple parallel first wire grooves on the first and second cutting wheels, allowing the second cutting wire to be sequentially wound around a first winding device, a first cutting wheel, a second cutting wheel, and a second winding device to form a multi-wire wire saw. The wire EDM integrated machine provided in this application integrates ring-shaped wire cutting, long single-wire cutting, and long multi-wire cutting methods onto the same cutting equipment. By simply changing the winding method, it can achieve workpiece cutting, slicing, or sampling operations, improving equipment compatibility and reducing production costs.

[0100] The above embodiments are merely illustrative of the inventive essence and beneficial effects of this application, and are not intended to limit this application. Any person skilled in the art can modify or alter the above embodiments without departing from the principles and scope of this application. Therefore, all equivalent modifications or alterations achieved by those skilled in the art without departing from the spirit and technical concept disclosed in this application should still be covered by the claims of this application.

Claims

1. A linear cutting all-in-one machine, characterized in that, The application relates to a cutting device for cutting workpieces, comprising a base, a winding mechanism, and a cutting mechanism. The base comprises a work area for conveying workpieces, which longitudinally extends from a proximal end to a distal end and is longitudinally arranged with a first guide rail. The winding mechanism comprises a first winding device and a second winding device arranged on opposite sides of the base, respectively. The cutting mechanism is used for cutting workpieces and comprises a rack arranged across the work area, a cutting installation structure arranged on the rack and capable of being lifted, and a cutting unit arranged on the cutting installation structure.

2. The linear cutting all-in-one machine according to claim 1, characterized in that, The cutting unit comprises a cutting frame arranged on the cutting installation structure, a first cutting wheel and a second cutting wheel arranged on the cutting frame and having a plurality of mutually parallel first wire grooves and being located on opposite sides of the work area, respectively, and a first cutting wire or a second cutting wire arranged around the first cutting wheel and the second cutting wheel.

3. The linear cutting all-in-one machine according to claim 1, characterized in that, The first cutting wire is annularly arranged between the first cutting wheel and the second cutting wheel in a head-to-tail manner to form a ring-shaped cutting wire saw, and the second cutting wire is sequentially arranged around the first winding device, the first cutting wheel, the second cutting wheel and the second winding device to form a single-wire cutting wire saw or a multi-wire cutting wire saw.

4. The linear cutting all-in-one machine according to claim 1, characterized in that, The cutting unit further comprises a cutting wheel driving structure arranged on the cutting frame and used for driving the first cutting wheel or the second cutting wheel to rotate at a high speed to drive the first cutting wire to perform cutting work.

5. The wire cutting all-in-one machine according to claim 4, characterized in that, The first winding device or the second winding device comprises a winding cylinder, a winding driving structure used for driving the winding cylinder to rotate to drive the second cutting wire to run, and a winding moving structure used for driving the winding cylinder to longitudinally translate.

6. The wire cutting all-in-one machine according to claim 5, characterized in that, The cutting unit further comprises a first wire guide wheel and a second wire guide wheel arranged on a wheel shaft support and located on opposite sides of the cutting frame and used for realizing reversing of the second cutting wire.

7. The linear cutting all-in-one machine according to claim 4, characterized in that, The first wire guide wheel and the second wire guide wheel are respectively connected with a tension detection mechanism used for detecting and adjusting tension of the first cutting wire or the second cutting wire, the tension detection mechanism comprises a tension sensor arranged on the first wire guide wheel or the second wire guide wheel and a tension driving unit associated with the tension sensor and used for performing tension adjustment.

8. The wire cutting all-in-one machine according to claim 7, characterized in that, The tension driving unit comprises a tension driving part transversely arranged on a top of the wheel shaft support and a connecting rod assembly connected with the tension driving part to drive the first wire guide wheel or the second wire guide wheel to generate position change. The first wire guide wheel and the second wire guide wheel are respectively connected with a wire guide wheel moving structure used for driving the first wire guide wheel or the second wire guide wheel to longitudinally translate to adjust an in-wire position and an out-wire position of the second cutting wire. The wire guide wheel moving structure comprises a frame body arranged on the cutting frame, a moving guide rail longitudinally arranged on a top of the frame body, a moving slider arranged on a bottom of the wheel shaft support and connected with the moving guide rail, and a moving driving part used for driving the moving slider to longitudinally move along the moving guide rail to drive the first wire guide wheel or the second wire guide wheel to longitudinally move.

9. The linear cutting all-in-one machine according to claim 4, characterized in that, The cutting frame is further provided with a first auxiliary wheel between the first wire guide wheel and the first cutting wheel, and a second auxiliary wheel between the second wire guide wheel and the second cutting wheel, the first and second auxiliary wheels being provided with a plurality of second wire grooves corresponding to the first wire grooves; the second cutting wire is sequentially arranged around the first winding device, the first wire guide wheel, the first auxiliary wheel, the first cutting wheel, the second cutting wheel, the second auxiliary wheel, the second wire guide wheel and the second winding device to form the multi-wire cutting wire saw.

10. The wire saw all-in-one machine according to claim 1, characterized in that, The cutting unit further comprises a cutting frame swinging device for swinging cutting of the workpiece.

11. The wire saw all-in-one machine according to claim 10, characterized in that, The cutting frame swinging device comprises an arc-shaped guide rail arranged on the top of the cutting mounting structure, an arc-shaped sliding block connected to the arc-shaped guide rail and arranged on the cutting frame, and a swinging driving structure for driving the arc-shaped sliding block to move along the arc-shaped guide rail to swing the cutting frame left and right.

12. The wire cutting all-in-one machine according to claim 1, characterized in that, The working area is provided with a supporting assembly for carrying the workpiece for cutting operation.

13. The wire saw all-in-one machine according to claim 12, characterized in that, The supporting assembly comprises a carrying table for placing the workpiece and a carrying table moving mechanism for driving the carrying table to longitudinally move to feed the workpiece.

14. The wire saw all-in-one machine according to claim 13, characterized in that, The carrying table moving mechanism comprises a workpiece carrier arranged across the first guide rail and connected to the carrying table, and a workpiece translation mechanism for driving the workpiece carrier to longitudinally move on the first guide rail.

15. The wire saw all-in-one machine according to claim 14, characterized in that, The supporting assembly further comprises a carrying table rotating mechanism arranged below the carrying table for driving the carrying table to rotate to switch the cutting direction.

Images