Pressing device for silicon rod cutting and silicon rod squaring machine

Abstract

The invention relates to the technical field of pressing devices, in particular to a pressing device for silicon rod cutting and a silicon rod squarer, comprising a vertically oriented linear guide rail, a support vertically and slidably connected to the linear guide rail, and a limiting part fixed on the linear guide rail, when the direction of the acting force enabling the support to slide is not parallel to the extending direction of the linear guide rail, the floating pin can float in the radial direction, and the elastic coupling deforms to store force. Therefore, the floating pin can float in the radial direction, the radial floating amount of the linear guide rail is compensated, and the stability of the pressing assembly after the silicon rod is pressed is effectively guaranteed. The floating pin can elastically float in the radial direction, and the axial position is kept fixed, so that the floating track of the floating pin is well limited, and the stability of the pressing head assembly when the silicon rod is pressed is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of clamping devices, and in particular to a clamping device for silicon rod cutting and a silicon rod squaring machine. Background Art

[0002] When the silicon rod is being squared, it is necessary to axially compress the silicon rod to maintain the stability of the silicon rod during the squared process.

[0003] In the prior art, the lower end of the silicon rod is supported on a base, and the upper end is clamped by a clamping device, which is integrated on the cutting head. The clamping device clamps the silicon rod by its own weight, and is vertically slidably connected to the cutting head via a linear guide rail. When the cutting head is fed downward, the clamping device can clamp the silicon rod. Since the downward feeding direction of the cutting head is difficult to avoid deviation from the sliding direction defined by the linear guide rail, when the extension direction of the linear guide rail is not parallel to the feeding direction of the cutting head during cutting, the cutting head will cause the clamping device to slide horizontally, that is, slide radially, and then cause the clamping assembly to move radially, which is easy to deflect the silicon rod and reduce the cutting accuracy of the silicon rod. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a clamping device for silicon rod cutting, which solves the technical problem in the prior art that when the extension direction of the linear guide rail is not parallel to the feed direction of the cutting head during cutting, the cutting head will cause the clamping device to slide laterally, thereby causing the clamping assembly to shift radially, which is easy to deflect the silicon rod and reduce the cutting accuracy of the silicon rod.

[0006] (II) Technical solution

[0007] In order to achieve the above object, the main technical solutions adopted by the present invention include:

[0008] In the first aspect, the present invention provides a clamping device for silicon rod cutting, comprising a vertically oriented linear guide, a support vertically slidably connected to the linear guide, and a limit portion fixed on the linear guide, wherein the limit portion can limit the upper limit position of the support relative to the linear guide and bear the deadweight of the clamping device when the clamping device moves radially; it also comprises a floating assembly, a pressure head assembly and an axial support assembly, wherein the floating assembly comprises an elastic coupling with a vertically oriented axis, a floating pin and a support sleeve, the support sleeve is fixedly connected to the linear guide, the elastic coupling connects the support sleeve and the floating pin to support the top end of the floating pin in the inner cavity of the support sleeve, and the lower end of the floating pin extends out of the inner cavity of the support sleeve and is connected to the pressure head assembly; the axial support assembly can axially support the floating pin in the inner cavity of the support sleeve; when the direction of the force causing the support to slide is not parallel to the extension direction of the linear guide, the floating pin can float radially and cause the elastic coupling to deform and store force.

[0009] In one technical solution of the present invention, the bottom of the support sleeve is an open structure and is detachably connected to a bottom cover, the floating pin passes through the bottom cover and is gap-matched with the bottom cover; the axial support assembly includes a thrust assembly, the thrust assembly includes a retaining frame and a plurality of balls, and ball grooves corresponding to the balls are formed in the retaining frame; the retaining frame is made of elastic material, and the retaining frame is fixed on the floating pin; the balls and the ball grooves match each other, and when the floating pin floats radially, the balls roll, and the side walls of the ball grooves rub against the balls, thereby causing the retaining frame to deform and accumulate force to provide a reset force to the floating pin.

[0010] In one technical solution of the present invention, the middle portion of the floating pin radially extends to form a flange portion, and the flange portion is located above the bottom cover; the thrust assembly is arranged as two groups located on both axial sides of the flange portion; the balls of one group of thrust assemblies respectively abut against the upper wall of the flange portion and the inner wall of the support sleeve along both axial sides of the floating pin, and the balls of the other group of thrust assemblies respectively abut against the upper wall of the flange portion and the top wall of the bottom cover along both axial sides of the floating pin.

[0011] In one technical solution of the present invention, the clamping device also includes a joint, the pressure head assembly is connected to the bottom cover through the joint, and an axial clearance is provided between the bottom cover and the joint; the floating assembly also includes an elastic pin, the elastic pin is vertically oriented and the two ends are respectively connected to the joint and the bottom cover; when the floating pin floats radially, the elastic pin deforms and stores force; the elastic pin is located in the axial clearance between the joint and the bottom cover; the elastic pins are evenly distributed circumferentially along the axial direction of the joint.

[0012] In one technical solution of the present invention, the pressure head assembly includes a pressure head and an elastic assembly, and the pressure head is connected to the joint through the elastic assembly; the elastic assembly includes a sliding sleeve, a spring and a connecting flange, the connecting flange fixes the connecting joint, the sliding sleeve is vertically slidably connected to the connecting flange, the two ends of the spring respectively load the joint and the sliding sleeve to keep the elastic force applied to the sliding sleeve away from the joint, and the pressure head is fixedly connected to the sliding sleeve; the pressure head assembly also includes a transition plate, which is fixedly connected to the sliding sleeve and the pressure head; the pressure head assembly also includes a front connecting plate, and the connecting flange is fixedly connected to the joint through the front connecting plate.

[0013] In one technical solution of the present invention, the upper part of the connecting flange passes through the front connecting plate, a first column cavity is formed in the connecting flange, a second column cavity is formed in the sliding sleeve, the sliding sleeve is vertically slidably connected in the first column cavity, and the spring is located in the first column cavity and the second column cavity.

[0014] In a technical solution of the present invention, the floating assembly further comprises a sealing ring, which is arranged in a radial gap between the floating pin and the bottom cover and abuts against both. When the floating pin floats radially, the sealing ring changes and stores force.

[0015] In a technical solution of the present invention, it also includes a counterweight component, which is fixedly connected to the linear guide rail and leaves the position of the pressing area of ​​the pressure head assembly.

[0016] In a technical solution of the present invention, the counterweight component is connected to the top of the linear guide rail, and the center of gravity of the counterweight component coincides with the axis of the linear guide rail.

[0017] In a second aspect, the present invention provides a silicon rod squaring machine, comprising the clamping device for silicon rod cutting in the above technical solution, and also comprising a cutting head, the cutting head can slide vertically and horizontally, and the support is supported on the cutting head.

[0018] (III) Beneficial effects

[0019] The beneficial effects of the present invention are as follows: the clamping device for silicon rod cutting of the present invention can clamp the silicon rod by its own weight, and the clamping device can be connected to the moving seat of the cutting head of the silicon rod through a support, and when the cutting head moves laterally, the linear guide slides relative to the support to the lower limit position, so that the support supports the limit part and then bears the deadweight of the clamping device. After the clamping device moves to the cutting position of the silicon rod with the cutting head, the cutting head feeds downward, and then, after the pressure head assembly contacts the silicon rod and clamps the silicon rod, the silicon rod cutting operation can be performed.

[0020] Since the downward feed direction of the cutting head is difficult to avoid deviation from the sliding direction of the support defined by the linear guide rail, when the extension direction of the linear guide rail is not parallel to the feed direction of the cutting head during cutting, the cutting head will cause the clamping device to slide laterally, that is, slide radially, thereby causing the clamping assembly to move radially, which can easily cause the silicon rod to be deflected.

[0021] However, due to the presence of the floating assembly in the present invention, after the linear guide rail is dislocated, since the pressure head assembly is pressed on the silicon rod, the floating pin will float radially, thereby compensating for the radial floating amount of the linear guide rail, and effectively ensuring the stability of the clamping assembly after clamping the silicon rod.

[0022] Since the support sleeve is fixedly connected to the linear guide rail, and the pressure head assembly is supported in the inner cavity of the support sleeve through the floating pin and the elastic coupling, the elastic coupling provides radial floating amount for the floating pin, and also provides radial reset force to the floating pin, which cooperates with the supporting function of the axial support assembly to ensure the axial stability of the floating pin. In other words, the floating pin can float radially elastically and keep the axial position fixed, thereby well limiting the floating trajectory of the floating pin and ensuring the stability of the pressure head assembly when pressing the silicon rod.

[0023] In summary, the clamping device for silicon rod cutting provides stable and reliable clamping support for the silicon rod cutting process, which helps to improve the cutting accuracy and efficiency of the silicon rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the axial structure of the clamping device for cutting silicon rods of the present invention;

[0025] Figure 2 This is a schematic diagram of the front view of the structure of the clamping device for cutting silicon rods of the present invention;

[0026] Figure 3 For the present invention Figure 2 Schematic diagram of the cross-sectional structure of the AA surface;

[0027] Figure 4 For the present invention Figure 3 Schematic diagram of the local enlarged structure at X in the middle.

[0028] [Description of Reference Numerals]

[0029] 1. Linear guide;

[0030] 2. Support;

[0031] 3. Limiting part;

[0032] 4. Floating assembly; 41. Elastic coupling; 42. Floating pin; 420. Flange; 43. Support sleeve; 44. Bottom cover; 45. Elastic pin; 46. Sealing ring;

[0033] 5. Press head assembly; 51. Press head; 52. Elastic assembly; 521. Sliding sleeve; 522. Spring; 523. Connecting flange; 53. Transition plate; 54. Front connecting plate;

[0034] 6. Axial support assembly; 61. Thrust assembly; 611. Cage; 612. Ball;

[0035] 7. Connector;

[0036] 8. Counterweight components. DETAILED DESCRIPTION

[0037] In order to better explain the present invention, so as to facilitate understanding, the following Figure 1-Figure 4 , the present invention is described in detail through specific implementation methods. Figure 3 The orientation is used as a reference.

[0038] Embodiment 1:

[0039] Reference Figure 1-Figure 4 The embodiment of the present invention provides a clamping device for silicon rod cutting, which clamps the silicon rod by its own weight. The clamping device includes a vertically oriented linear guide 1, a support 2 vertically slidably connected to the linear guide 1, and a limiter 3 fixed to the linear guide 1. The limiter 3 can limit the upper limit position of the support 2 relative to the linear guide 1 and bear the weight of the clamping device when the clamping device moves radially. The clamping device also includes a floating assembly 4 and a pressing head assembly 5. The floating assembly 4 includes an elastic coupling 41 with a vertically oriented axis, a floating pin 42 and a support sleeve 43, which support The sleeve 43 is fixedly connected to the linear guide 1, and the elastic coupling 41 connects the support sleeve 43 and the floating pin 42 to support the top end of the floating pin 42 in the inner cavity of the support sleeve 43. The lower end of the floating pin 42 extends out of the inner cavity of the support sleeve 43 and connects to the pressure head assembly 5. The middle part of the floating pin 42 radially extends to form a flange part 420. The floating assembly 4 also includes an axial support assembly 6 to axially support the floating pin 42 in the inner cavity of the support sleeve 43. When the direction of the force that causes the support 2 to slide is not parallel to the extension direction of the linear guide 1, the floating pin 42 can float radially. A pressing area for the silicon rod is formed below the pressure head assembly 5.

[0040] In this embodiment, the clamping device can clamp the silicon rod by its own weight, and the clamping device can be connected to the moving seat of the cutting head of the silicon rod through the support 2. When the cutting head moves laterally, the linear guide 1 slides relative to the support 2 to the lower limit position, so that the support 2 supports the limit part 3 and thus bears the deadweight of the clamping device. After the clamping device moves to the cutting position of the silicon rod with the cutting head, the cutting head feeds downward, and then, after the pressure head assembly 5 contacts and clamps the silicon rod, the silicon rod cutting operation can be performed.

[0041] Since the downward feed direction of the cutting head is difficult to avoid deviation from the sliding direction of the support 2 defined by the linear guide 1, when the extension direction of the linear guide 1 is not parallel to the feed direction of the cutting head during cutting, the cutting head will cause the clamping device to slide laterally, that is, slide radially, thereby causing the clamping assembly to move radially, which can easily cause the silicon rod to be deflected.

[0042] However, due to the presence of the floating assembly 4 in this embodiment, after the linear guide 1 is dislocated, since the pressure head assembly 5 is pressed on the silicon rod, the floating pin 42 will float radially, thereby compensating for the radial floating amount of the linear guide 1, and effectively ensuring the stability of the clamping assembly after clamping the silicon rod.

[0043] Specifically, since the support sleeve 43 is fixedly connected to the linear guide rail 1, and the pressure head assembly 5 is supported in the inner cavity of the support sleeve 43 through the floating pin 42 and the elastic coupling 41, the elastic coupling 41 provides radial floating amount for the floating pin 42, and also provides radial reset force to the floating pin 42, and cooperates with the supporting function of the axial support assembly 6 to ensure the axial stability of the floating pin 42. In other words, the floating pin 42 can float radially elastically, and the axial position remains fixed, thereby well limiting the floating trajectory of the floating pin 42 and ensuring the stability of the pressure head assembly 5 when pressing the silicon rod.

[0044] In summary, the clamping device for silicon rod cutting provides stable and reliable clamping support for the silicon rod cutting process, which helps to improve the cutting accuracy and efficiency of the silicon rod.

[0045] Specifically, the elastic coupling 41 includes an elastic part with a vertically oriented axis, such as a coil spring or an elastic pin, which can provide radial floating amount and reset elastic force for the floating pin 42, and connectors are connected to both ends of the elastic part.

[0046] More specifically, the elastic coupling 41 is located between the support sleeve 43 and the floating pin 42 and connects the two, forming a vertically extending structure similar to an axis connection, and the top inner cavity of the support sleeve 43 and the top of the floating pin 42 are equivalent to two "axes". When the floating pin 42 floats radially relative to the support sleeve 43, the elastic part of the elastic coupling 41 forms an elastic deformation to provide a reverse reset elastic force for the floating pin 42. Under the connection of the elastic coupling 41, a radial elastic connection is formed between the floating pin 42 and the support sleeve 43, and the elastic coupling 41 can also suspend the floating pin 42 in the support sleeve 43.

[0047] Taking the elastic coupling 41 of the coil spring as an example, the connecting heads at both ends of the elastic coupling 41 are respectively fixedly connected to the support sleeve 43 and the top of the floating pin 42 by bolts, so that the floating pin 42 is suspended in the inner cavity of the support sleeve 43. At the same time, under the action of the coil spring, the elastic coupling 41 also stably and reliably provides the floating pin 42 with radial floating amount and radial reset force.

[0048] Embodiment 2:

[0049] Reference Figure 1-Figure 4 In addition to all the technical solutions of any of the above embodiments, the embodiments of the present invention further have the following technical solutions:

[0050] The bottom of the support sleeve 43 is an open structure and is detachably connected to a bottom cover 44. The floating pin 42 passes through the bottom cover 44 and is in clearance fit with the bottom cover 44.

[0051] The bottom cover 44 is used to close the lower opening of the support sleeve 43. The design of the bottom cover 44 facilitates the assembly of components such as the floating pin 42, the elastic coupling 41 and the thrust assembly 61, thereby improving the assembly and maintenance efficiency of the clamping device.

[0052] The axial support assembly 6 includes a thrust assembly 61 , and each thrust assembly 61 includes a retaining frame 611 and a plurality of balls 612 . Ball grooves corresponding to the balls 612 are formed in the retaining frame 611 .

[0053] The retaining frames 611 are all made of elastic material, and the retaining frames 611 are fixed on the floating pin 42; when the floating pin 42 floats radially, the retaining frames 611 deform and store force to provide a reset force to the floating pin 42; the ball 612 and the ball groove are consistent, and when the ball 612 rolls, the side wall of the ball groove rubs against the ball 612, thereby causing the retaining frame 611 to deform and store force.

[0054] In this embodiment, the retainer 611 is made of an elastic material, and when subjected to an external force, it can deform and return to its original shape after the external force disappears. This characteristic enables the retainer 611 to deform and accumulate force when the floating pin 42 floats radially. The retainer 611 is fixed to the floating pin 42, which ensures that when the floating pin 42 moves, the retainer 611 will also move, thereby driving the ball 612 on the retainer 611 to move.

[0055] When the ball 612 rolls in the ball groove, the side wall of the ball groove will generate friction with the ball 612. This friction not only helps the ball 612 to roll stably in the ball groove and provide a certain damping for the radial floating of the floating pin 42, but also enables the retainer 611 to deform and accumulate force under the action of friction. Because the ball groove is part of the retainer 611, the friction between the ball 612 and the side wall of the ball groove actually exerts a force on the retainer 611, causing it to deform.

[0056] Due to the friction between the ball 612 and the side wall of the ball groove, the retaining frame 611 will deform and accumulate force. The elastic force of the deformation of the retaining frame 611 can work together with the elastic force of the elastic coupling 41 to provide a reset force for the floating pin 42. This combined form of reset force can change the action curve of the reset force, improve the linearity and stability of the reset force, and thereby improve the stability of the pressure head assembly 5.

[0057] Embodiment 3:

[0058] Reference Figure 1-Figure 4 In addition to all the technical solutions of the above embodiments, the embodiments of the present invention further have the following technical solutions:

[0059] The middle part of the floating pin 42 radially extends to form a flange portion 420, and the flange portion 420 is located above the bottom cover 44; the thrust assembly 61 is arranged as two groups located on both axial sides of the flange portion 420; the balls 612 of one group of thrust assemblies 61 respectively abut against the upper wall of the flange portion 420 and the inner wall of the support sleeve 43 along the axial sides of the floating pin 42, and the balls 612 of the other group of thrust assemblies 61 respectively abut against the upper wall of the flange portion 420 and the top wall of the bottom cover 44 along the axial sides of the floating pin 42.

[0060] In this embodiment, the floating pin 42 is supported in the inner cavity of the support sleeve 43 by two sets of thrust assemblies 61. The two sets of thrust assemblies 61 not only provide axial support, but also allow the floating pin 42 to float radially, thereby efficiently adapting to the operating conditions of the floating pin 42.

[0061] Embodiment 4:

[0062] Reference Figure 1-Figure 4 In addition to all the technical solutions of any of the above embodiments, the embodiments of the present invention further have the following technical solutions:

[0063] The clamping device also includes a joint 7, and the pressure head assembly 5 is connected to the bottom cover 44 through the joint 7, and an axial clearance is provided between the bottom cover 44 and the joint 7; the floating assembly 4 also includes an elastic pin 45, the elastic pin 45 is vertically oriented and the two ends of the elastic pin 45 are respectively connected to the joint 7 and the bottom cover 44; the elastic pin 45 is located in the axial clearance between the joint 7 and the bottom cover 44, and the elastic pin 45 is evenly distributed circumferentially along the axial direction of the joint 7.

[0064] In this embodiment, the existence of the axial clearance can prevent the joint 7 and the bottom cover 44 from colliding when the floating pin 42 floats radially, thereby ensuring that the floating pin 42 has a sufficient radial floating amount.

[0065] On the one hand, the elastic pin 45 can connect the joint 7 and the bottom cover 44 to prevent the joint 7 from rotating relative to the bottom cover 44, thereby preventing the pressure head assembly 5 from rotating relative to the support sleeve 43; on the other hand, when the floating pin 42 floats radially, the elastic pin 45 can also deform and store force to provide a mobile restoring force, which, in conjunction with other elastic restoring components, can further improve the stability of the pressure head assembly 5.

[0066] Embodiment 5:

[0067] Reference Figure 1-Figure 4 In addition to all the technical solutions of any of the above embodiments, the embodiments of the present invention further have the following technical solutions:

[0068] The floating assembly 4 also includes a sealing ring 46, which is arranged to abut against the radial gap between the floating pin 42 and the bottom cover 44. On the one hand, it can seal the gap and thus close the inner cavity of the support sleeve 43. On the other hand, when the floating pin 42 floats radially, it can also elastically store force to provide a certain reset force. In conjunction with other elastic reset components, the stability of the pressure head assembly 5 can be further improved.

[0069] When the embodiment further includes an elastic coupling 41, a retaining frame 611 made of elastic material and an elastic pin 45, the pressing head assembly 5 of the clamping device has a quadruple elastic reset force when floating radially, thereby optimizing the elastic force curve, which is beneficial to further improve the stability of the pressing head assembly 5 after clamping the silicon rod.

[0070] Embodiment 6:

[0071] Reference Figure 1-Figure 4 In addition to all the technical solutions of any of the above embodiments, the embodiments of the present invention further have the following technical solutions:

[0072] The clamping device further comprises a weight component 8, which is fixedly connected to the linear guide rail 1 and leaves the clamping area of ​​the pressure head assembly 5. The weight component 8 is connected to the top of the linear guide rail 1, and the center of gravity of the weight component 8 coincides with the axis of the linear guide rail 1.

[0073] The weight component 8 can be provided to increase the deadweight of the clamping device, thereby improving the stability and reliability of the clamping device in clamping the silicon rod. The weight component 8 can be provided on the top of the linear guide rail 1 to make the layout more reasonable, ensure the stability of the center of gravity of the clamping device, thereby further improving the stability and reliability of the clamping device in clamping the silicon rod.

[0074] Embodiment 7:

[0075] Reference Figure 1-Figure 4 In addition to all the technical solutions of any of the above embodiments, the embodiments of the present invention further have the following technical solutions:

[0076] The pressure head assembly 5 includes a pressure head 51 and an elastic assembly 52. ​​The pressure head 51 is connected to the joint 7 through the elastic assembly 52. ​​The elastic assembly 52 includes a sliding sleeve 521, a spring 522 and a connecting flange 523. The connecting flange 523 is fixedly connected to the joint 7. The sliding sleeve 521 is vertically slidably connected to the connecting flange 523. Both ends of the spring 522 load the joint 7 and the sliding sleeve 521 respectively to keep the elastic force applied to the sliding sleeve 521 away from the joint 7. The pressure head 51 is fixedly connected to the sliding sleeve 521.

[0077] The pressing head assembly 5 further includes a transition plate 53 , which is fixedly connected to the sliding sleeve 521 and the pressing head 51 ; that is, the pressing head 51 and the sliding sleeve 521 are connected via the transition plate 53 .

[0078] The pressure head assembly 5 further includes a front connecting plate 54 , and the connecting flange 523 is fixedly connected to the joint 7 via the front connecting plate 54 .

[0079] In this embodiment, the elastic component 52 can ensure that the pressing head 51 is always in contact with the silicon rod during the cutting process of the silicon rod, thereby improving the pressing reliability and stability of the silicon rod.

[0080] The pressure head 51 is the part of the assembly that directly contacts the silicon rod and is responsible for applying pressure to keep the silicon rod stable during the cutting process. The sliding sleeve 521 is vertically slidably connected to the connecting flange 523, allowing the pressure head 51 to have a certain range of motion in the vertical direction. The two ends of the spring 522 are respectively connected to the joint 7 and the sliding sleeve 521, providing elastic force for the sliding sleeve 521 and the pressure head 51 connected thereto to stay away from the joint 7. This design allows the pressure head 51 to automatically adjust according to the height or position change of the silicon rod to ensure that it always maintains contact with the silicon rod.

[0081] The connecting flange 523 is a part for fixing the joint 7, through which the entire elastic component 52 is connected to the joint 7. The transition plate 53 is fixedly connected to the sliding sleeve 521 and the pressure head 51, plays a role of transition and support, and ensures that the connection between the pressure head 51 and the sliding sleeve 521 is stable and reliable.

[0082] The front connecting plate 54 is used to fix the connecting flange 523 to the joint 7 to ensure the stability of the entire pressing head assembly 5 .

[0083] During the silicon rod cutting process, the conventional fixed pressing head 51 may not always keep contact with the silicon rod. However, the pressing head assembly 5 in this embodiment is designed with an elastic assembly 52, and the elastic force of the spring 522 enables the pressing head 51 to automatically adjust according to the height or position change of the silicon rod, ensuring that it always keeps contact with the silicon rod.

[0084] Since the pressing head 51 can always be in contact with the silicon rod, the pressing reliability of the silicon rod during the cutting process is improved.

[0085] The stable clamping force helps to reduce the vibration of the silicon rod during the cutting process, thereby improving the stability and accuracy of the cutting.

[0086] In summary, the pressing head assembly 5 in this embodiment effectively improves the pressing reliability and stability of the silicon rod during the cutting process through its unique design of the elastic component 52, and provides a strong guarantee for high-quality silicon rod cutting.

[0087] The upper part of the connecting flange 523 passes through the front connecting plate 54, a first column cavity is formed in the connecting flange 523, a second column cavity is formed in the sliding sleeve 521, the sliding sleeve 521 is vertically slidably connected in the first column cavity, and the spring 522 is located in the first column cavity and the second column cavity.

[0088] The vertical sliding connection of the sliding sleeve 521 in the first column cavity ensures that the pressure head 51 can be automatically adjusted according to the height or position change of the silicon rod. By passing the connecting flange 523 through the front connecting plate 54, the axial space occupied by the pressure head assembly 5 can be reduced, and its structural compactness can be improved.

[0089] The various components of the above-mentioned pressing head assembly 5 are coaxially arranged to ensure its pressing stability.

[0090] Embodiment 8:

[0091] Figure 1-Figure 4 In addition to providing a silicon rod squaring machine, the embodiments of the present invention include the silicon rod cutting clamping device in any of the above embodiments, and also include a cutting head, which can slide vertically and horizontally, and the support 2 is supported on the cutting head. Therefore, the silicon rod squaring machine includes all the beneficial effects of the silicon rod cutting clamping device in any of the above embodiments. To avoid repetition, they are not described in detail here.

[0092] It can be understood that, except for any conflicting parts, the above-mentioned embodiments 1-8 can be freely combined to form other implementation modes of the present invention.

[0093] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0094] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0095] In the present invention, unless otherwise clearly specified and limited, when a first feature is “on” or “below” a second feature, it may be that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above”, “above” or “above” a second feature, it may be that the first feature is directly above or obliquely above the second feature, or it may simply mean that the first feature is higher in level than the second feature. When a first feature is “below”, “below” or “below” a second feature, it may be that the first feature is directly below or obliquely below the second feature, or it may simply mean that the first feature is lower in level than the second feature.

[0096] The term "comprise" or any other similar term is intended to cover a non-exclusive inclusion, such that a process, article, or apparatus / device that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, article, or apparatus / device.

[0097] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A clamping device for silicon rod cutting, characterized in that: The invention comprises a vertically oriented linear guide rail (1), a support (2) vertically slidably connected to the linear guide rail (1), and a limiting portion (3) fixed to the linear guide rail (1), wherein the limiting portion (3) is capable of limiting the upper limit position of the support (2) relative to the linear guide rail (1) and bearing the deadweight of the clamping device when the clamping device moves radially; It also includes a floating assembly (4), a pressure head assembly (5) and an axial support assembly (6), wherein the floating assembly (4) includes an elastic coupling (41) with a vertically oriented axis, a floating pin (42) and a support sleeve (43), wherein the support sleeve (43) is fixed to the linear guide rail (1), the elastic coupling (41) connects the support sleeve (43) and the floating pin (42) to support the top end of the floating pin (42) in the inner cavity of the support sleeve (43), the lower end of the floating pin (42) is connected to the pressure head assembly (5), and a pressing area for the silicon rod is formed below the pressure head assembly (5); the axial support assembly (6) is capable of axially supporting the floating pin (42) in the inner cavity of the support sleeve (43); When the direction of the force causing the support (2) to slide is not parallel to the extension direction of the linear guide rail (1), the floating pin (42) can float radially and cause the elastic coupling (41) to deform and store force.

2. The pressing device for silicon rod cutting according to claim 1, characterized in that: The bottom of the support sleeve (43) is an open structure and is detachably connected to a bottom cover (44); the floating pin (42) passes through the bottom cover (44) and is clearance-matched with the bottom cover (44); The axial support assembly (6) comprises a thrust assembly (61), and each thrust assembly (61) comprises a retaining frame (611) and a plurality of balls (612), wherein ball grooves corresponding to the balls (612) are formed in the retaining frame (611); The retaining frame (611) is made of elastic material, and the retaining frame (611) is fixed on the floating pin (42), and the ball (612) and the ball groove are matched; when the floating pin (42) floats radially, the ball (612) rolls, and the side wall of the ball groove rubs against the ball (612), thereby causing the retaining frame (611) to deform and store force to provide a reset force to the floating pin (42).

3. The pressing device for silicon rod cutting according to claim 2, characterized in that: The middle portion of the floating pin (42) radially extends to form a flange portion (420), and the flange portion (420) is located above the bottom cover (44); The thrust assembly (61) is arranged as two groups located on both axial sides of the flange portion (420); The balls (612) of one group of thrust assemblies (61) respectively abut against the upper wall of the flange portion (420) and the inner wall of the support sleeve (43) along the axial sides of the floating pin (42), and the balls (612) of another group of thrust assemblies (61) respectively abut against the upper wall of the flange portion (420) and the top wall of the bottom cover (44) along the axial sides of the floating pin (42).

4. The pressing device for silicon rod cutting according to claim 2, characterized in that: The pressing device further comprises a joint (7), the pressing head assembly (5) is connected to the bottom cover (44) via the joint (7), and an axial clearance is provided between the bottom cover (44) and the joint (7); The floating assembly (4) further comprises an elastic pin (45), the elastic pin (45) being oriented vertically and having two ends respectively connected to the joint (7) and the bottom cover (44); when the floating pin (42) floats radially, the elastic pin (45) is deformed to store force; The elastic pin (45) is located in the axial clearance gap between the joint (7) and the bottom cover (44); The elastic pins (45) are evenly distributed in the circumferential direction along the axial direction of the joint (7).

5. The silicon rod cutting pressing device according to claim 4, characterized in that: The pressure head assembly (5) comprises a pressure head (51) and an elastic assembly (52), and the pressure head (51) is connected to the joint (7) via the elastic assembly (52); The elastic component (52) comprises a sliding sleeve (521), a spring (522) and a connecting flange (523); the connecting flange (523) is fixedly connected to the joint (7); the sliding sleeve (521) is vertically slidably connected to the connecting flange (523); two ends of the spring (522) respectively load the joint (7) and the sliding sleeve (521) to keep the elastic force applied to the sliding sleeve (521) away from the joint (7); and the pressure head (51) is fixedly connected to the sliding sleeve (521); The pressure head assembly (5) further comprises a transition plate (53), and the pressure head (51) and the sliding sleeve (521) are connected via the transition plate (53); The pressure head assembly (5) further comprises a front connecting plate (54), and the connecting flange (523) is fixedly connected to the joint (7) via the front connecting plate (54).

6. The pressing device for silicon rod cutting according to claim 5, characterized in that: The upper part of the connecting flange (523) passes through the front connecting plate (54), a first column cavity is formed in the connecting flange (523), a second column cavity is formed in the sliding sleeve (521), the sliding sleeve (521) is vertically slidably connected in the first column cavity, and the spring (522) is located in the first column cavity and the second column cavity.

7. The pressing device for silicon rod cutting according to claim 1, characterized in that: The floating assembly (4) further comprises a sealing ring (46), wherein the sealing ring (46) is disposed in a radial gap between the floating pin (42) and the bottom cover (44) and abuts against the two. When the floating pin (42) floats radially, the sealing ring (46) deforms and stores force.

8. The pressing device for silicon rod cutting according to claim 1, characterized in that: It also comprises a weight balancing component (8), wherein the weight balancing component (8) is fixedly connected to the linear guide rail (1) and leaves the pressing area of ​​the pressing head assembly (5) in place.

9. The pressing device for silicon rod cutting according to claim 8, characterized in that: The counterweight component (8) is connected to the top of the linear guide rail (1), and the center of gravity of the counterweight component (8) coincides with the axis of the linear guide rail (1).

10. A silicon rod squaring machine, characterized in that: It comprises the clamping device for cutting silicon rods as claimed in any one of claims 1 to 9, and also comprises a cutting head, the cutting head can slide vertically and horizontally, and the support (2) is supported on the cutting head.

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