A gripper, cutting assembly and de-threading method

Abstract

The present application relates to the technical field of silicon rod processing, and particularly relates to a clamping device, a cutting assembly and a withdrawing method, which comprises a mounting panel, a wire cutting wheel system and a clamping device, the clamping device comprises a linear reciprocating device and a clamp, and at least one layer of the clamp is arranged on the movable end of the linear reciprocating device in the vertical direction; the clamp comprises a mounting plate and a wedge block which is arranged on the mounting plate in a sliding manner, the plate surface of the mounting plate is arranged in the vertical direction of the movable end of the linear reciprocating device, and the wedge block has a clamping arm which protrudes from the plate surface of the mounting plate. The cutting end of the wire cutting wheel system and the clamping device are respectively arranged at the two ends of the mounting panel in the thickness direction, a through hole is arranged on the mounting panel, the cutting end of the wire cutting wheel system is enclosed into a clamping space on the mounting panel, and the clamp of the clamping device can pass through the through hole and enter into the clamping space. The present application can withdraw the cutting assembly from the clamping area of the silicon rod clamped by the squaring machine.

Description

Technical Field

[0001] This invention relates to the field of silicon rod processing technology, and more particularly to a clamp, a cutting assembly, and a wire removal method. Background Technology

[0002] Silicon is widely used in the photovoltaic power generation field. To meet the quality parameters of silicon ingots and the shape and size requirements of the next process, preliminary processing of the silicon ingots is usually required by a squaring machine, such as cutting a round silicon ingot into a square silicon ingot. Sometimes, it is even necessary to cut the square silicon ingot into two equal-sized rectangular silicon ingots along its length. However, the current squaring machine, as disclosed in publication number CN116277558A, is a silicon ingot squaring and cutting device. In this design, clearance positions are set on the upper and lower clamping seats to allow the cutting line of the cutting tool to enter, thereby avoiding interference with the cutting line during material handling. However, this design results in a relatively high overall height of the squaring machine and is only suitable for cutting components with fewer wire EDM wheel systems. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a clamp, a cutting component and a wire removal method that, while meeting the requirements for silicon rod cutting, can remove the cutting component from the clamping area of ​​the silicon rod held by the squaring machine.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: a clamp, comprising a linear reciprocating device and a clamp, wherein the movable end of the linear reciprocating device is provided with at least one layer of clamps in the vertical direction;

[0005] The clamp includes a mounting plate and a wedge block that is slidably disposed on the mounting plate. The surface of the mounting plate is horizontally disposed in the vertical direction of the movable end of the linear reciprocating device. The moving direction of the wedge block is perpendicular to the moving direction of the movable end of the linear reciprocating device. The wedge block has a clamping arm that extends horizontally out of the surface of the mounting plate.

[0006] To solve the above-mentioned technical problems, another technical solution adopted by the present invention is as follows:

[0007] A cutting assembly includes a mounting panel, a wire cutting wheel system, and a clamp as described above. The mounting panel has a cutting end of the wire cutting wheel system and the clamp at both ends along the thickness direction. The mounting panel has a through hole, and the cutting end of the wire cutting wheel system forms a clamping space on the mounting panel. The clamp of the clamp can pass through the through hole and enter the clamping space.

[0008] A method for removing the cutting wire based on the above scheme includes step S1: pressing the top and bottom ends of the silicon rod material together, and cutting from the top to the bottom end of the silicon rod material by the cutting wire of the cutting component until the silicon rod material is cut off to obtain two silicon rod blanks.

[0009] Step S2: The clamp on the cutting assembly holds the closest silicon ingot blank;

[0010] Step S3: Remove the force from the top and bottom of the silicon ingot blank held by the clamp;

[0011] Step S4: The clamp holds the silicon ingot blank and moves it horizontally away from the other silicon ingot blank, so that a stripping space is formed between the two silicon ingot blanks;

[0012] Step S5: Re-tighten the top and bottom of the silicon rod blank held by the clamp;

[0013] Step S6: The clamp releases the silicon ingot blank, and the cutting line of the cutting assembly moves from the bottom of the retraction space to the top of the retraction space until the cutting line of the cutting assembly is completely above the top of the silicon ingot blank.

[0014] The beneficial effects of this invention are as follows: After the wire cutting wheel system of the cutting assembly cuts the silicon rod material into two silicon rod blanks, a linear reciprocating device drives the clamp to pass through the through hole of the mounting panel and clamp the nearest silicon rod blank; then, the linear reciprocating device drives the clamp to move the silicon rod blank in the horizontal direction away from the other silicon rod blank, so that a wire retraction space is formed between the two silicon rod blanks; then, the cutting wire of the cutting assembly can move from the bottom to the top of the wire retraction space without interfering with the silicon rod blank. Finally, the cutting wire of the cutting assembly exits from the top of the silicon rod blank from the clamping area of ​​the squaring machine, thereby avoiding interference with the cutting assembly during material handling. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a clamp in a specific embodiment of the present invention;

[0016] Figure 2 This is a side view of a clamp in a specific embodiment of the present invention;

[0017] Figure 3 This is a schematic diagram of the structure of a cutting component in a specific embodiment of the present invention;

[0018] Figure 4 This is a schematic diagram of the main structure of a cutting component in a specific embodiment of the present invention;

[0019] Figure 5This is a schematic diagram of a squaring machine equipped with a cutting component in a specific embodiment of the present invention;

[0020] Label Explanation:

[0021] 1. Linear reciprocating device;

[0022] 2. Fixture; 21. Mounting plate; 22. Guide rail;

[0023] 23. Wedge; 231. Clamping arm; 232. Guide hole;

[0024] 24. Sliding block; 241. Guide post;

[0025] 25. Driving components;

[0026] 3. Spacer blocks; 4. Mounting panel;

[0027] 5. Wire EDM wheel system; 51. Cutting wire; 52. Drive wheel; 53. Follower wheel; 54. Tensioner wheel;

[0028] 6. Tensioning mechanism; 61. Bearing housing; 62. Rotating shaft; 621. Connecting arm;

[0029] 7. Covering component; 8. Top component; 9. Bottom component. Detailed Implementation

[0030] To explain in detail the technical content, objectives, and effects of the present invention, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0031] Silicon is widely used in the photovoltaic power generation field. To meet the quality parameters of silicon ingots and the shape and size requirements of the next process, preliminary processing of the silicon ingots is usually required by a squaring machine, such as cutting a round silicon ingot into a square silicon ingot. Sometimes, it is even necessary to cut the square silicon ingot into two equal-sized rectangular silicon ingots along its length. However, the current squaring machine, as disclosed in publication number CN116277558A, is a silicon ingot squaring and cutting device. In this design, clearance positions are set on the upper and lower clamping seats to allow the cutting line of the cutting tool to enter, thereby avoiding interference with the cutting line during material handling. However, this design results in a relatively high overall height of the squaring machine and is only suitable for cutting components with fewer wire EDM wheel systems.

[0032] Based on this, this application provides a clamp, a cutting assembly, and a wire removal method to solve the problem that the cutting wire of the cutting assembly cannot exit the clamping area of ​​the silicon rod held by the squaring machine.

[0033] Please refer to Figure 1 and Figure 2As shown, the present invention discloses a clamping device, comprising a linear reciprocating device 1 and a clamp 2. The movable end of the linear reciprocating device 1 is provided with at least one layer of clamps 2 along the vertical direction. The clamp 2 includes a mounting plate 21, a guide rail 22, and a wedge 23 slidably disposed on the guide rail 22. The surface of the mounting plate 21 is horizontally disposed in the vertical direction of the movable end of the linear reciprocating device 1. The guide rail 22 is disposed on the surface of the mounting plate 21. The moving direction of the wedge 23 on the guide rail 22 is perpendicular to the moving direction of the movable end of the linear reciprocating device 1. The wedge 23 has a clamping arm 231 extending horizontally out of the surface of the mounting plate 21. Preferably, the linear reciprocating device 1 is a rodless cylinder.

[0034] As can be seen from the above description, the beneficial effects of the present invention are as follows: the linear reciprocating device 1 can drive the clamp 2 to approach or move away from the silicon rod blank. During the process of clamping the silicon rod blank, the two wedges 23 can control the two clamping arms 231 to clamp the silicon rod blank by moving on the guide rail 22.

[0035] Please refer to Figure 1 and Figure 2 As shown, the clamp 2 further includes a push-pull block 24 and a driving member 25. The wedge block 23 is provided with a guide elongated hole 232, which is inclined towards the edge of the mounting plate 21. The push-pull block 24 is provided with guide posts 241 that are respectively inserted into the guide elongated holes 232 of the relatively sliding wedge blocks 23. The movable end of the driving member 25 is connected to the push-pull block 24, and the moving direction of the movable end of the driving member 25 is parallel to the moving direction of the movable end of the linear reciprocating device 1. Preferably, the driving member 25 is a cylinder.

[0036] As can be seen from the above description, since the distance between the guide posts 241 on the push-pull block 24 does not change, when the moving end of the drive member 25 controls the push-pull block 24 to move, the guide posts 241 will move within the guide elongated hole 232 of the wedge block 23, and force the wedge block 23 to move on the guide rail 22, thereby realizing the approach and distance of the two clamping arms 231.

[0037] Please refer to Figure 1 As shown, a pad 3 is further provided on the clamping surface of the clamping arm 231.

[0038] As can be seen from the above description, the pad 3 can prevent damage to the surface of the silicon rod blank when the clamping arm 231 clamps the silicon rod blank.

[0039] Please refer to Figure 3 and Figure 4As shown, the present invention provides a cutting assembly, including a mounting panel 4, a wire cutting wheel system 5, and a clamp as described above. The mounting panel 4 is provided with the cutting end of the wire cutting wheel system 5 and the clamp at both ends along the thickness direction, respectively. The mounting panel 4 is provided with a through hole, and the cutting end of the wire cutting wheel system 5 forms a clamping space on the mounting panel 4. The clamp 2 of the clamp can pass through the through hole and enter the clamping space.

[0040] As can be seen from the above description, the beneficial effects of the present invention are as follows: After the cutting end of the wire cutting wheel system 5 cuts the silicon rod material into two silicon rod blanks, the linear reciprocating device 1 of the clamp drives the clamp 2 through the through hole of the mounting panel 4, so that the clamp 2 enters the clamping space to clamp the nearest silicon rod blank. Then the linear reciprocating device 1 drives the clamp 2 to move the silicon rod blank in the horizontal direction and away from the other silicon rod blank, so that a wire retraction space is formed between the two silicon rod blanks, allowing the cutting end of the cutting assembly to move to the top of the silicon rod blank.

[0041] Please refer to Figure 3 and Figure 4 As shown, the wire EDM wheel system 5 further includes a cutting wire 51 and a drive wheel 52, a follower wheel 53, and a tension wheel 54 disposed on one end face of the mounting panel 4 in the thickness direction. The cutting wire 51 is arranged in a ring within the grooves of the drive wheel 52, the follower wheel 53, and the tension wheel 54. Preferably, the drive wheel 52, the follower wheel 53, and the tension wheel 54 are arranged along the contour of the mounting panel 4, and one follower wheel 53 is respectively provided in the vertical and horizontal directions of the drive wheel 52. The four-wheel structure can improve the stability of the cutting wire 51 during operation.

[0042] Please refer to Figure 3 and Figure 4 As shown, a further cutting assembly also includes a tensioning mechanism 6, which includes a bearing seat 61 and a rotating shaft 62. The bearing seat 61 is disposed on the mounting panel 4, and the rotating shaft 62 is rotatably mounted in the bearing seat 61 via a bearing. A connecting arm 621 is eccentrically disposed at the end of the rotating shaft 62 away from the bearing seat 61, and the connecting arm 621 is connected to the tensioning wheel 54.

[0043] As can be seen from the above description, since the rotating shaft 62 is connected to the tensioning wheel 54 through the connecting arm 621, the degree to which the tensioning wheel 54 tensions the cutting line 51 can be controlled by rotating the rotating shaft 62.

[0044] In one alternative embodiment, a motor is driven to the end of the shaft 62 away from the tension wheel 54.

[0045] In another alternative embodiment, a counterweight is connected to the end of the shaft 62 away from the tension wheel 54.

[0046] Please refer to Figure 3 and Figure 4 As shown, a further cutting assembly also includes a shielding member 7 covering the through hole. The two opposite sides of the shielding member 7 are a fixed side and a free side, respectively. The fixed side of the shielding member 7 is connected to the mounting panel 4, and the direction from the fixed side to the free side of the shielding member 7 is vertically downward.

[0047] Furthermore, the shielding member 7 is located on the end face of the cutting end of the wire cutting wheel system 5 on the mounting panel 4.

[0048] As can be seen from the above description, the shield 7 is connected to the mounting panel 4 through the fixed edge. This not only does not affect the clamp 2 from passing through the through hole on the mounting panel 4 to clamp the silicon rod blank, but also prevents the coolant splashed by the cutting assembly during the cutting operation from carrying waste chips through the through hole on the mounting panel 4 and splashing onto the clamp.

[0049] The present invention provides a method for removing the wire, comprising step S1: pressing the top and bottom ends of the silicon rod material together, and cutting from the top to the bottom end of the silicon rod material by the cutting wire of the cutting assembly until the silicon rod material is cut off to obtain two silicon rod blanks.

[0050] Step S2: The clamp on the cutting assembly holds the closest silicon ingot blank;

[0051] Step S3: Remove the force from the top and bottom of the silicon ingot blank held by the clamp;

[0052] Step S4: The clamp holds the silicon ingot blank and moves it horizontally away from the other silicon ingot blank, so that a stripping space is formed between the two silicon ingot blanks;

[0053] Step S5: Re-tighten the top and bottom of the silicon rod blank held by the clamp;

[0054] Step S6: The clamp releases the silicon ingot blank, and the cutting line of the cutting assembly moves from the bottom of the retraction space to the top of the retraction space until the cutting line of the cutting assembly is completely above the top of the silicon ingot blank.

[0055] Furthermore, the above-mentioned wire removal method also includes step S7: removing the force on the top of the silicon rod blank in step S3, and the cutting wire of the cutting assembly exits from the top of the silicon rod blank.

[0056] Furthermore, the width of the unraveling space in step S4 is 4mm-6mm.

[0057] Example 1

[0058] Please refer to Figure 1 and Figure 2As shown, a clamp includes a linear reciprocating device 1 and a clamp 2. The movable end of the linear reciprocating device 1 is provided with at least one layer of clamp 2 in the vertical direction. The clamp 2 includes a mounting plate 21, a guide rail 22, and a wedge 23 that is slidably disposed on the guide rail 22. The surface of the mounting plate 21 is horizontally disposed in the vertical direction of the movable end of the linear reciprocating device 1. The guide rail 22 is disposed on the surface of the mounting plate 21. The moving direction of the wedge 23 on the guide rail 22 is perpendicular to the moving direction of the movable end of the linear reciprocating device 1. The wedge 23 has a clamping arm 231 that extends horizontally out of the surface of the mounting plate 21. The clamp 2 further includes a push-pull block 24 and a driving member 25. The wedge block 23 is provided with a guide elongated hole 232, and the guide elongated hole 232 is inclined towards the edge of the mounting plate 21. The push-pull block 24 is provided with guide posts 241 that are respectively inserted into the guide elongated holes 232 of the wedge blocks 23 that are slidably arranged relative to each other. The movable end of the driving member 25 is connected to the push-pull block 24, and the moving direction of the movable end of the driving member 25 is parallel to the moving direction of the movable end of the linear reciprocating device 1.

[0059] Example 2

[0060] This embodiment incorporates the clamp from Embodiment 1 onto the cutting assembly, as detailed below:

[0061] Please refer to Figure 3 and Figure 4 As shown, the device includes a mounting panel 4, a wire cutting wheel system 5, and a clamp. The mounting panel 4 has a cutting end of the wire cutting wheel system 5 and the clamp at both ends along its thickness direction. A through hole is provided on the mounting panel 4. The cutting end of the wire cutting wheel system 5 forms a clamping space on the mounting panel 4. The clamp 2 of the clamp can pass through the through hole and enter the clamping space. The wire cutting wheel system 5 includes a cutting wire 51 and a drive wheel 52, a follower wheel 53, and a tension wheel 54 disposed on one end face of the mounting panel 4 along its thickness direction. The cutting wire 51 is arranged in a ring within the grooves of the drive wheel 52, follower wheel 53, and tension wheel 54. It also includes a tensioning mechanism 6, which includes a bearing seat 61 and a rotating shaft 62. The bearing seat 61 is mounted on the mounting panel 4, and the rotating shaft 62 is rotatably mounted in the bearing seat 61 through a bearing. A connecting arm 621 is eccentrically provided at the end of the rotating shaft 62 away from the bearing seat 61, and the connecting arm 621 is connected to the tensioning wheel 54.

[0062] Example 3

[0063] This embodiment provides a squaring machine equipped with a cutting component, based on Embodiment 2, as detailed below:

[0064] Please refer to Figure 5As shown, the squaring machine has a cutting assembly and an upper top member 8 and a lower top member 9 arranged sequentially in the vertical direction. The upper top member 8 and / or the lower top member 9 can move in the vertical direction, and a clamping area for clamping silicon rod material is formed between the upper top member 8 and the lower top member 9. The cutting assembly can move in and out of the clamping area in the vertical direction and in the horizontal direction.

[0065] Example 4

[0066] This embodiment provides a method for removing threads based on the square rooting machine in Embodiment 3, as detailed below:

[0067] Step S1: The top and bottom ends of the silicon rod material are pressed together by the upper pusher 8 and the lower pusher 9, and the cutting line of the cutting assembly cuts from the top end of the silicon rod material to the bottom end of the silicon rod material until the silicon rod material is cut off to obtain two silicon rod blanks.

[0068] Step S2: The clamp on the cutting assembly holds the closest silicon ingot blank;

[0069] Step S3: Remove the force from the top and bottom of the silicon ingot blank held by the clamp;

[0070] Step S4: The clamp holds the silicon ingot blank and moves it horizontally away from the other silicon ingot blank, so that a stripping space is formed between the two silicon ingot blanks, and the width of the stripping space is 5mm.

[0071] Step S5: Re-tighten the top and bottom of the silicon rod blank held by the clamp;

[0072] Step S6: The clamp releases the silicon ingot blank, and the cutting line of the cutting assembly moves from the bottom of the retraction space to the top of the retraction space until the cutting line of the cutting assembly is completely above the top of the silicon ingot blank.

[0073] Step S7: Remove the force on the top of the silicon rod blank in step S3, and the cutting line of the cutting assembly exits from the top of the silicon rod blank.

[0074] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent modifications made based on the content of the present invention specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A method for removing threads from a cutting component, characterized in that: The cutting assembly includes: a mounting panel, a wire cutting wheel system, and a clamp. The mounting panel is provided with the cutting end of the wire cutting wheel system and the clamp at both ends along the thickness direction. The mounting panel is provided with a through hole. The cutting end of the wire cutting wheel system forms a clamping space on the mounting panel. The clamp of the clamp can pass through the through hole and enter the clamping space. The clamp includes a linear reciprocating device and a clamp. The movable end of the linear reciprocating device is provided with at least two layers of clamps in the vertical direction. The clamp includes a mounting plate and wedges that are slidably disposed on the mounting plate. The surface of the mounting plate is horizontally disposed in the vertical direction of the movable end of the linear reciprocating device. The moving direction of the wedges is perpendicular to the moving direction of the movable end of the linear reciprocating device. The wedges have clamping arms that extend horizontally out of the surface of the mounting plate. The clamp also includes a push-pull block and a driving component. The wedges are provided with guide holes that are inclined toward the edge of the mounting plate. The push-pull block is provided with guide posts that are respectively inserted into the guide holes of the slidably disposed wedges. The movable end of the driving component is connected to the push-pull block, and the moving direction of the movable end of the driving component is parallel to the moving direction of the movable end of the linear reciprocating device. The process includes step S1: pressing the top and bottom of the silicon rod material together, and cutting it from the top to the bottom of the silicon rod material by the cutting line of the cutting component until the silicon rod material is cut off to obtain two silicon rod blanks. Step S2: The clamp on the cutting assembly holds the closest silicon ingot blank; Step S3: Remove the force from the top and bottom of the silicon ingot blank held by the clamp; Step S4: The clamp holds the silicon ingot blank and moves it horizontally away from the other silicon ingot blank, so that a stripping space is formed between the two silicon ingot blanks; Step S5: Re-tighten the top and bottom of the silicon rod blank held by the clamp; Step S6: The clamp releases the silicon ingot blank, and the cutting line of the cutting assembly moves from the bottom of the retraction space to the top of the retraction space until the cutting line of the cutting assembly is completely above the top of the silicon ingot blank.

2. The unwinding method according to claim 1, characterized in that: The clamp also includes a guide rail disposed on the surface of the mounting plate, and the wedge is slidably disposed on the guide rail.

3. The unwinding method according to claim 1, characterized in that: The wire cutting wheel system includes a cutting wire and a drive wheel, a follower wheel, and a tension wheel disposed on one end face of the mounting panel in the thickness direction. The cutting wire is arranged in a ring in the grooves of the drive wheel, the follower wheel, and the tension wheel.

4. The unwinding method according to claim 3, characterized in that: It also includes a tensioning mechanism, which includes a bearing housing and a rotating shaft; the bearing housing is mounted on a mounting panel, and the rotating shaft is rotatably mounted in the bearing housing via a bearing; a connecting arm is eccentrically provided at the end of the rotating shaft away from the bearing housing, and the connecting arm is connected to the tensioning wheel.

5. The unwinding method according to claim 1, characterized in that: It also includes a shielding member covering the through hole, wherein the two opposite sides of the shielding member are a fixed side and a free side, the fixed side of the shielding member is connected to the mounting panel, and the direction from the fixed side to the free side of the shielding member is vertically downward.

6. The unwinding method according to claim 1, characterized in that: It also includes step S7: removing the force reapplied to the top of the silicon rod blank in step S5, and the cutting line of the cutting assembly exits from the top of the silicon rod blank.

7. The unwinding method according to claim 1, characterized in that: The width of the unraveling space in step S4 is 4mm-6mm.

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