A chamfering device and method of use for processing single-crystal silicon ingots

Abstract

The present invention relates to the technical field of single-crystal silicon rod production, and specifically relates to a chamfering device and a usage method for processing single-crystal silicon rods. It includes a transportation mechanism. The two transportation mechanisms are arranged in parallel and have different heights. The transportation mechanism includes a first installation bracket, and the first installation bracket is fixedly connected to the ground. Two vertically arranged sprockets are rotatably connected to the first installation bracket. A chain is connected between the two sprockets. A first driving motor is fixedly connected to the first installation bracket, and the output shaft of the first driving motor is fixedly connected to the upper sprocket. Two supporting mechanisms are arranged between the two chains, and a clamping mechanism is arranged on the supporting mechanism. In the present invention, through the two supporting mechanisms provided, when the crystal rod on one of the supporting mechanisms is being chamfered, the crystal rod to be chamfered can be placed on the other supporting mechanism, saving the feeding time and improving the processing efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of single crystal silicon rod production, and particularly to a chamfering device and a usage method for processing single crystal silicon rods. Background Art

[0002] Existing single crystal silicon rods are in a cylindrical structure. After being cut off, edges and corners will be formed. The edge and corner structure will cause problems such as chipping and crystal cracking when bumped. Since single crystal silicon is a brittle material, the losses caused by bumping are incalculable. Chamfering the single crystal silicon rod can effectively reduce the impact caused by bumping.

[0003] The existing patent (Publication No.: CN211072973U) discloses a chamfering device for single crystal silicon rods, which includes a base. On both sides of the base, there are respectively arranged rotating rollers parallel to each other. The two ends of the rotating rollers are respectively rotated through rotating seats fixed on the base. On one side of the same side ends of the two rotating rollers, there is a clamping and rotating mechanism. There is a U-shaped chute on the base. The rotating rollers are located between the two sides of the unclosed end of the U-shaped chute. The closed end of the U-shaped chute is parallel to the rotating rollers. On both sides of the unclosed end of the U-shaped chute, there are respectively communicated with chutes. The other ends of the chutes are respectively parallel and located between the two rotating rollers. The clamping and rotating mechanism is respectively slidably connected with the U-shaped chute and the chute. On one side above the base where the rotating roller is far away from the U-shaped chute, there is a lead screw parallel to the rotating roller. A chamfering mechanism is arranged in cooperation with the lead screw. Compared with the prior art, the advantages of the present invention are as follows: reasonable structure, simple operation, more convenient and flexible chamfering. The inventor found the following problems in the process of realizing the above invention: After chamfering is completed, it is necessary to perform operations such as loosening the crystal rod, replacing the crystal rod, and fixing the crystal rod before chamfering can be carried out again. It takes a long time and there are many operation steps. Summary of the Invention

[0004] The purpose of the present invention is to provide a chamfering device and a usage method for processing single crystal silicon rods to solve the problems raised in the above background art. To achieve the above purpose, the present invention provides the following technical solutions:

[0005] A chamfering device for processing single crystal silicon rods includes a transportation mechanism. The two transportation mechanisms are arranged in parallel and have different heights. The transportation mechanism includes a first installation bracket, the first installation bracket is fixedly connected to the ground. Two sprockets arranged vertically are rotatably connected to the first installation bracket. A chain is connected between the two sprockets. A first driving motor is fixedly connected to the first installation bracket. The output shaft of the first driving motor is fixedly connected to the upper sprocket. Two supporting mechanisms are arranged between the two chains. A clamping mechanism is arranged on the supporting mechanism. On one side of the transportation mechanism, there are two symmetrically arranged adjustment mechanisms. On the other side of the transportation mechanism, there is a grinding mechanism.

[0006] Preferably, the supporting mechanism includes a connecting bracket I and a connecting body. The two connecting brackets I are respectively fixedly connected to the links at the same position of the two chains. The two ends of the connecting body are provided with two connecting shafts of different heights. The height difference between the connecting brackets I is equal to the height difference between the connecting shafts. The connecting bracket I is rotatably connected to the connecting shaft of the same height on the same side. Two supporting brackets are symmetrically and fixedly connected to the connecting body. Three evenly distributed supporting cylinders are rotatably connected to the supporting brackets.

[0007] Preferably, the two connecting brackets I on a single chain are centrosymmetric about the center point of the chain.

[0008] Preferably, the clamping mechanism includes a double-threaded screw rod and a guide rod. The two double-threaded screw rods and the two guide rods are symmetrically and rotatably connected to the connecting body. Two symmetrically arranged connecting brackets IV are slidably connected to the guide rod. Two symmetrically arranged clamping blocks are fixedly connected to the two connecting brackets IV. A screw nut is also fixedly connected to the connecting bracket IV. The double-threaded screw rod is provided with two threads with opposite helix directions. The two screw nuts are respectively threadedly connected to the double-threaded screw rod through the two threads.

[0009] Preferably, gears I are fixedly connected to both ends of the double-threaded screw rod. Two connecting brackets V are symmetrically and fixedly connected to the mounting bracket I. Two symmetrically arranged rack I are fixedly connected to the connecting brackets V. The gear I will mesh with the rack I during the movement process.

[0010] Preferably, the adjusting mechanism includes a mounting bracket II. Two connected horizontal grooves and vertical grooves are symmetrically formed in the mounting bracket II. A pushing plate is slidably connected in the horizontal groove. A spring is connected between the pushing plate and the end face of the horizontal groove. A sliding rod is slidably connected in the vertical groove.

[0011] Preferably, a mounting sleeve is fixedly connected to the sliding rod. A pushing rod is slidably connected to the mounting sleeve. A guide rod is fixedly connected to the pushing rod. A square plate is fixedly connected to the mounting bracket II. An inclined groove is formed in the square plate. The guide rod is slidably connected in the inclined groove.

[0012] Preferably, two extension plates are further provided on the mounting bracket II. A connecting bracket II and a connecting bracket III are respectively fixedly connected to the two connecting shafts. Wedge-shaped blocks are fixedly connected to both the connecting bracket II and the connecting bracket III. The heights of the wedge-shaped blocks are the same. The ends of the extension plates on the two mounting brackets II are respectively abutted against the inclined surfaces of the wedge-shaped blocks.

[0013] Preferably, the grinding mechanism includes a third mounting bracket which is arranged on the ground. Two sliding mounting blocks are symmetrically and slidably connected to the third mounting bracket. A second driving motor is fixedly connected to the sliding mounting block. A rotating bracket is also rotatably connected to the sliding mounting block. The output shaft of the second driving motor is fixedly connected to the rotating bracket. A fixed frame is slidably and rotatably connected to the rotating bracket. A third driving motor is fixedly connected to the fixed frame. A grinding head is fixedly connected to the output shaft of the third driving motor. Two studs are provided on the fixed frame, and fixing nuts are threadedly connected to the studs.

[0014] Preferably, two symmetrically arranged second racks are fixedly connected to the two sliding mounting blocks. A fourth driving motor is fixedly connected to the third mounting bracket. A second gear is fixedly connected to the output shaft of the fourth driving motor. The second gear meshes with both of the two second racks.

[0015] Preferably, a blanking bracket is also fixedly connected to the third mounting bracket. When the connecting body moves downward, it passes between the two guide plates of the blanking bracket.

[0016] A usage method of a chamfering device for processing single-crystal silicon ingots includes the following steps:

[0017] Place the single-crystal silicon ingot to be chamfered on the supporting bracket below, start the first driving motor, drive the sprocket fixedly connected thereto to rotate, the rotation of the sprocket drives the chain to move, and the synchronous movement of the two chains pulls the connecting body connected thereto to move upward;

[0018] When the connecting body moves upward, the wedge block fixedly connected to the connecting body also moves upward. Since the end of the extension plate abuts against the inclined surface of the wedge block, the upward movement of the wedge block will push the sliding rod to move upward together. When the sliding rod moves to the top of the vertical groove, the sliding rod can no longer continue to move upward, while the wedge block will continue to move upward. The sliding rod is pushed by the wedge block into the horizontal groove, so that the extension plate will not block the upward movement of the connecting body. When the wedge block disengages from the extension plate, the push plate pushes the sliding rod from the horizontal groove to the vertical groove under the elastic force of the spring, so that the sliding rod falls to the bottom of the vertical groove under the action of gravity;

[0019] During this process, the installation sleeve will rise and fall with the sliding rod. Since the guide rod on the push rod is slidably connected in the inclined groove, when the installation sleeve rises, the push rods at both ends of the ingot approach inward synchronously, thereby pushing the ingot to make it in the central position. When the installation sleeve descends, the push rods at both ends separate and reset outward;

[0020] Then the connecting body continues to move upward, the first gear and the first rack mesh, so that the first gear and the double-threaded lead screw start to rotate. Since the two threads on the double-threaded lead screw have opposite helix directions, the two connecting brackets four and the clamping blocks move inward synchronously to clamp the ingot and fix it;

[0021] When the connecting body moves to the grinding mechanism, turn off the first driving motor, stop moving the connecting body, and then start the second driving motor and the third driving motor to rotate the grinding head and the rotating bracket. Then start the fourth driving motor to drive the second gear to rotate. The rotation of the second gear drives the two racks at both ends and the sliding mounting blocks to move closer inward, so that the grinding head contacts the edge of the end face of the crystal bar, and chamfers are ground. Stop the second driving motor and the third driving motor, reverse the fourth driving motor, and drive the sliding mounting blocks to separate outward;

[0022] Finally, start the first driving motor again to move the sliding mounting block downward. The first gear will mesh with the first rack again. At this time, the rotation directions of the first gear and the double-threaded screw rod are opposite to those before, so that the clamping blocks separate and no longer fix the crystal bar. Then the downward-moving crystal bar will abut against the guide plate of the blanking bracket and be blocked by the blanking bracket, so that the crystal bar separates from the continuously downward-moving supporting bracket. The empty supporting mechanism will move to the initial position and stop.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0024] In the present invention, through the two provided supporting mechanisms, when the crystal bar on one of the supporting mechanisms is being chamfered, a crystal bar to be chamfered can be placed on the other supporting mechanism, saving the feeding time and improving the processing efficiency.

[0025] In the present invention, through the provided clamping mechanism, during the movement of the supporting mechanism, the clamping and loosening of the crystal bar can be automatically completed without manual operation by the operator, making it more convenient to use.

[0026] In the present invention, through the provided adjusting mechanism, during the movement of the supporting mechanism, it can move along with the supporting mechanism and make the crystal bar in the central position through two approaching push rods, and then chamfers can be performed on both ends of the crystal bar synchronously, further improving the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 is a schematic diagram of the structure of the transportation mechanism in the present invention;

[0029] Figure 3 is a schematic diagram of the structure of the supporting mechanism in the present invention;

[0030] Figure 4 is a schematic diagram of the structure of the clamping mechanism in the present invention;

[0031] Figure 5 is a schematic diagram of the structure of the adjusting mechanism in the present invention;

[0032] Figure 6 This is the structural schematic diagram of the grinding mechanism in the present invention;

[0033] Figure 7 is Figure 6 the partial enlarged schematic diagram at position A in;

[0034] Figure 8 is Figure 6 the partial enlarged schematic diagram at position B in.

[0035] In the figure: 1. Transportation mechanism; 101. First mounting bracket; 102. Sprocket; 103. Chain; 104. First driving motor; 2. Supporting mechanism; 201. First connecting bracket; 202. Connecting body; 203. Connecting shaft; 204. Supporting bracket; 205. Supporting cylinder; 3. Clamping mechanism; 301. Double-threaded lead screw; 302. Guide rod; 303. Fourth connecting bracket; 304. Clamping block; 305. Lead screw nut; 306. First gear; 307. Fifth connecting bracket; 308. First rack; 4. Adjusting mechanism; 401. Second mounting bracket; 402. Horizontal groove; 403. Vertical groove; 404. Pushing plate; 405. Spring; 406. Sliding rod; 407. Mounting sleeve; 408. Pushing rod; 409. Guide rod; 410. Square plate; 411. Inclined groove; 412. Extension plate; 413. Second connecting bracket; 414. Third connecting bracket; 415. Wedge block; 5. Grinding mechanism; 501. Third mounting bracket; 502. Sliding mounting block; 503. Second driving motor; 504. Rotating bracket; 505. Fixed frame; 506. Third driving motor; 507. Grinding head; 508. Stud; 509. Fixed nut; 510. Second rack; 511. Fourth driving motor; 512. Second gear; 6. Feeding bracket. Specific implementation manners

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

[0037] Please refer to Figures 1 to 8 , the present invention provides a technical solution:

[0038] A chamfering device for processing single-crystal silicon ingots, comprising a transport mechanism 1. Two said transport mechanisms 1 are arranged in parallel and have different heights. The transport mechanism 1 includes a first mounting bracket 101, and the first mounting bracket 101 is fixedly connected to the ground. Two vertically arranged sprockets 102 are rotatably connected to the first mounting bracket 101. A chain 103 is connected between the two sprockets 102. A first driving motor 104 is fixedly connected to the first mounting bracket 101, and the output shaft of the first driving motor 104 is fixedly connected to the upper sprocket 102. Two supporting mechanisms 2 are arranged between the two chains 103. A clamping mechanism 3 is arranged on the supporting mechanism 2. On one side of the transport mechanism 1, two symmetrically arranged adjusting mechanisms 4 are provided. On the other side of the transport mechanism 1, a grinding mechanism 5 is provided.

[0039] In this embodiment, the supporting mechanism 2 includes a first connecting bracket 201 and a connecting body 202. The two first connecting brackets 201 are respectively fixedly connected to the links at the same position of the two chains 103. Two connecting shafts 203 with different heights are arranged at both ends of the connecting body 202. The height difference between the first connecting brackets 201 is equal to the height difference between the connecting shafts 203. The first connecting bracket 201 is rotatably connected to the same-height connecting shaft 203 on the same side. Two supporting brackets 204 are symmetrically and fixedly connected to the connecting body 202. Three evenly distributed supporting cylinders 205 are rotatably connected to the supporting brackets 204.

[0040] In this embodiment, by providing the supporting cylinders 205, the resistance suffered by the push rod 408 when pushing the ingot can be effectively reduced, and at the same time, the surface of the ingot can be prevented from being damaged due to sliding friction.

[0041] In this embodiment, the two first connecting brackets 201 on a single chain 103 are centrosymmetric about the center point of the chain 103.

[0042] In this embodiment, the clamping mechanism 3 includes a double-threaded screw rod 301 and a guide rod 302. The two double-threaded screw rods 301 and the two guide rods 302 are symmetrically and rotatably connected to the connecting body 202. Two symmetrically arranged fourth connecting brackets 303 are slidably connected to the guide rod 302. Two symmetrically arranged clamping blocks 304 are fixedly connected to the two fourth connecting brackets 303. A screw nut 305 is also fixedly connected to the fourth connecting bracket 303. The double-threaded screw rod 301 is provided with two threads with opposite helix directions, and the two screw nuts 305 are respectively threadedly connected to the double-threaded screw rod 301 through the two threads.

[0043] In this embodiment, a layer of flexible material is covered on the inner surface of the clamping block 304, which can prevent the clamping block from damaging the surface of the ingot.

[0044] In this embodiment, both ends of the double-threaded lead screw 301 are fixedly connected with a first gear 306. Two connecting brackets five 307 are symmetrically and fixedly connected to the first mounting bracket 101. Two symmetric first racks 308 are fixedly connected to the connecting bracket five 307. The first gear 306 will mesh with the first rack 308 during the movement.

[0045] In this embodiment, the adjusting mechanism 4 includes a second mounting bracket 401. Two connected horizontal grooves 402 and vertical grooves 403 are symmetrically formed in the second mounting bracket 401. A pushing plate 404 is slidably connected in the horizontal groove 402. A spring 405 is connected between the pushing plate 404 and the end face of the horizontal groove 402. A sliding rod 406 is slidably connected in the vertical groove 403.

[0046] In this embodiment, the spring 405 and the pushing plate 404 are used to push out the sliding rod 406 entering the horizontal groove 402.

[0047] In this embodiment, a mounting sleeve 407 is fixedly connected to the sliding rod 406. A pushing rod 408 is slidably connected to the mounting sleeve 407. A guide rod 409 is fixedly connected to the pushing rod 408. A square plate 410 is fixedly connected to the second mounting bracket 401. An inclined groove 411 is formed in the square plate 410. The guide rod 409 is slidably connected in the inclined groove 411.

[0048] In this embodiment, two extension plates 412 are further provided on the second mounting bracket 401. A connecting bracket two 413 and a connecting bracket three 414 are respectively fixedly connected to the two connecting shafts 203. A wedge block 415 is fixedly connected to both the connecting bracket two 413 and the connecting bracket three 414. The heights of the wedge blocks 415 are the same. The ends of the extension plates 412 on the two second mounting brackets 401 are respectively abutted against the inclined surfaces of the wedge blocks 415.

[0049] In this embodiment, the grinding mechanism 5 includes a third mounting bracket 501. The third mounting bracket 501 is arranged on the ground. Two sliding mounting blocks 502 are symmetrically and slidably connected to the third mounting bracket 501. A second driving motor 503 is fixedly connected to the sliding mounting block 502. A rotating bracket 504 is further rotatably connected to the sliding mounting block 502. The output shaft of the second driving motor 503 is fixedly connected to the rotating bracket 504. A fixed frame 505 is slidably and rotatably connected to the rotating bracket 504. A third driving motor 506 is fixedly connected to the fixed frame 505. A grinding head 507 is fixedly connected to the output shaft of the third driving motor 506. Two stud bolts 508 are provided on the fixed frame 505. A fixing nut 509 is threadedly connected to the stud bolt 508.

[0050] In this embodiment, the connection mode of the fixed frame 505 enables the driving motor three 506 and the grinding head 507 to be adjusted according to actual requirements.

[0051] In this embodiment, two rack two 510 which are centrosymmetric are fixedly connected to the two sliding mounting blocks 502, a driving motor four 511 is fixedly connected to the mounting bracket three 501, a gear two 512 is fixedly connected to the output shaft of the driving motor four 511, and the gear two 512 meshes with both of the two rack two 510.

[0052] In this embodiment, a blanking bracket 6 is further fixedly connected to the mounting bracket three 501, and the connecting body 202 passes between the two guide plates of the blanking bracket 6 when moving downward.

[0053] A usage method of a chamfering device for processing single crystal silicon ingots includes the following steps:

[0054] Place the single crystal silicon ingot to be chamfered on the supporting bracket 204 below, start the driving motor one 104 to drive the sprocket 102 fixedly connected thereto to rotate, the rotation of the sprocket 102 drives the chain 103 to move, and the synchronous movement of the two chains 103 pulls the connecting body 202 connected thereto to move upward;

[0055] When the connecting body 202 moves upward, the wedge block 415 fixedly connected to the connecting body 202 also moves upward. Since the end of the extension plate 412 abuts against the inclined surface of the wedge block 415, the upward movement of the wedge block 415 will push the sliding rod 406 to move upward together. When the sliding rod 406 moves to the top of the vertical groove 403, the sliding rod 406 can no longer move upward, while the wedge block 415 will continue to move upward. The sliding rod 406 is pushed by the wedge block 415 into the horizontal groove 402, so that the extension plate 412 will not block the upward movement of the connecting body 202. When the wedge block 415 disengages from the extension plate 412, the ejector plate 404 pushes the sliding rod 406 from the horizontal groove 402 to the vertical groove 403 under the elastic force of the spring 405, so that the sliding rod 406 falls to the bottom of the vertical groove 403 under the action of gravity;

[0056] During this process, the mounting sleeve 407 will rise and fall with the sliding rod 406. Since the guide rod 409 on the push rod 408 is slidably connected in the inclined groove 411, when the mounting sleeve 407 rises, the push rods 408 at both ends of the ingot approach inward synchronously, thereby pushing the ingot to make it in the central position. When the mounting sleeve 407 descends, the pushes at both ends separate and reset outward;

[0057] Then, it continues to move upward while connecting to the main body 202. The first gear 306 and the first rack 308 are engaged, causing the first gear 306 and the double-threaded lead screw 301 to start rotating. Since the two threads on the double-threaded lead screw 301 have opposite helix directions, the two connecting brackets four 303 and the clamping block 304 move inward synchronously to clamp and fix the crystal bar.

[0058] When the connecting main body 202 moves to the grinding mechanism 5, the driving motor one 104 is turned off to stop the movement of the connecting main body 202. Then, the driving motor two 503 and the driving motor three 506 are started to make the grinding head 507 and the rotating bracket 504 rotate. Then, the driving motor four 511 is started to drive the second gear 512 to rotate. The rotation of the second gear 512 drives the two second racks 510 and the sliding mounting block 502 at both ends to move inward, so that the grinding head 507 contacts the edge of the end face of the crystal bar to grind the chamfer. Then, the driving motor two 503 and the driving motor three 506 are stopped, and the driving motor four 511 is reversed to drive the sliding mounting block 502 to move outward.

[0059] Finally, the driving motor one 104 is started again to move the sliding mounting block 502 downward. At this time, the first gear 306 will be engaged with the first rack 308 again. At this time, the rotation direction of the first gear 306 and the double-threaded lead screw 301 is opposite to that before, so that the clamping block 304 separates and no longer fixes the crystal bar. Then, the downward-moving crystal bar will abut against the guide plate of the blanking bracket 6 and be blocked by the blanking bracket 6, causing the crystal bar to separate from the continuously downward-moving supporting bracket 204. The empty supporting mechanism 2 will move to the initial position and then stop.

[0060] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A chamfering device for processing a single crystal silicon ingot, comprising a transport mechanism (1), characterized in that: The two transport mechanisms (1) are arranged in parallel and at different heights. The transport mechanism (1) comprises a mounting bracket (101), the mounting bracket (101) is fixedly connected to the ground, two sprockets (102) arranged up and down are rotatably connected to the mounting bracket (101), the two sprockets (102) are connected to chains (103), a driving motor (104) is fixedly connected to the mounting bracket (101), the output shaft of the driving motor (104) is fixedly connected to the upper sprocket (102), two supporting mechanisms (2) are arranged between the two chains (103), a clamping mechanism (3) is arranged on the supporting mechanism (2), two symmetrically arranged adjustment mechanisms (4) are arranged on one side of the transport mechanism (1), and a grinding mechanism (5) is arranged on the other side of the transport mechanism (1); The supporting mechanism (2) comprises a connecting bracket (201) and a connecting body (202), wherein the two connecting brackets (201) are respectively fixedly connected to the links at the same position of the two chains (103), and two connecting shafts (203) of different heights are arranged at both ends of the connecting body (202), and the height difference of the connecting bracket (201) is equal to the height difference of the connecting shaft (203), and the connecting bracket (201) is rotatably connected to the connecting shaft (203) of the same height on the same side, and two supporting brackets (204) are symmetrically fixedly connected to the connecting body (202), and three evenly distributed supporting cylinders (205) are rotatably connected to the supporting bracket (204); The adjustment mechanism (4) comprises a second mounting bracket (401), the second mounting bracket (401) being symmetrically provided with two connected transverse grooves (402) and a vertical groove (403), a push-out plate (404) being slidably connected in the transverse groove (402), a spring (405) being connected between the push-out plate (404) and the end surface of the transverse groove (402), and a sliding rod (406) being slidably connected in the vertical groove (403); The sliding rod (406) is fixedly connected with a mounting sleeve (407), the mounting sleeve (407) is slidably connected with a push rod (408), the push rod (408) is fixedly connected with a guide rod (409), the second mounting bracket (401) is fixedly connected with a square plate (410), the square plate (410) is provided with an inclined groove (411), and the guide rod (409) is slidably connected in the inclined groove (411); The second mounting bracket (401) is also provided with two extension plates (412), the two connecting shafts (203) are respectively fixedly connected with the second connecting bracket (413) and the third connecting bracket (414), the second connecting bracket (413) and the third connecting bracket (414) are both fixedly connected with a wedge block (415), the heights of the wedge blocks (415) are the same, and the ends of the extension plates (412) on the two second mounting brackets (401) are both in contact with the inclined surfaces of the wedge blocks (415); The grinding mechanism (5) comprises a mounting bracket three (501), the mounting bracket three (501) is arranged on the ground, two sliding mounting blocks (502) are symmetrically slidably connected on the mounting bracket three (501), a driving motor two (503) is fixedly connected to the sliding mounting block (502), a rotating bracket (504) is also rotatably connected to the sliding mounting block (502), an output shaft of the driving motor two (503) is fixedly connected to the rotating bracket (504), a fixing frame (505) is slidably and rotatably connected to the rotating bracket (504), a driving motor three (506) is fixedly connected to the fixing frame (505), a grinding head (507) is fixedly connected to the output shaft of the driving motor three (506), and two studs (508) are provided on the fixing frame (505), and fixing nuts (509) are threadedly connected to the studs (508); Two centrally symmetrical racks 2 (510) are fixedly connected to the two sliding mounting blocks (502), a driving motor 4 (511) is fixedly connected to the mounting bracket 3 (501), a gear 2 (512) is fixedly connected to the output shaft of the driving motor 4 (511), and the gear 2 (512) is meshed with the two racks 2 (510).

2. The chamfering device for processing a single crystal silicon ingot according to claim 1, characterized in that: The two connecting brackets (201) on a single chain (103) are centrally symmetrical about the center point of the chain (103).

3. The chamfering device for processing a single crystal silicon ingot according to claim 1, characterized in that: The clamping mechanism (3) comprises a double-threaded screw (301) and a guide rod (302), wherein the two double-threaded screws (301) and the two guide rods (302) are symmetrically connected to the connecting body (202) in a rotational manner, and the guide rod (302) is slidably connected to two symmetrical connecting brackets (303), and the two connecting brackets (303) are fixedly connected to two symmetrical clamping blocks (304), and the connecting brackets (303) are also fixedly connected to a screw nut (305), and the double-threaded screw (301) is provided with two sections of threads with opposite rotation directions, and the two screw nuts (305) are respectively threadedly connected to the double-threaded screw (301) through two sections of threads; Both ends of the double-threaded screw rod (301) are fixedly connected with gear one (306), and two connecting brackets five (307) are symmetrically fixedly connected to the mounting bracket one (101), and two symmetrical racks one (308) are fixedly connected to the connecting bracket five (307), and the gear one (306) will mesh with the rack one (308) during the movement.

4. The chamfering device for processing a single crystal silicon ingot according to claim 1, characterized in that: The mounting bracket three (501) is also fixedly connected to a material unloading bracket (6), and the connecting body (202) passes between two guide plates of the material unloading bracket (6) when moving downward.

5. A method for using a chamfering device for processing a single crystal silicon ingot according to any one of claims 1 to 4, characterized in that: The steps include: The single crystal silicon ingot to be chamfered is placed on the supporting bracket (204) below, and the driving motor 1 (104) is started to drive the sprocket (102) fixedly connected thereto to rotate, and the rotation of the sprocket (102) drives the chain (103) to move, and the two chains (103) move synchronously to pull the connecting body (202) connected thereto to move upward; When the connecting body (202) moves upward, the wedge block (415) fixedly connected to the connecting body (202) moves upward at the same time. Since the end of the extension plate (412) abuts against the inclined surface of the wedge block (415), the upward movement of the wedge block (415) will push the sliding rod (406) to move upward together. When the sliding rod (406) moves to the top of the vertical groove (403), the sliding rod (406) can no longer move upward, while the wedge block (415) will continue to move upward, and the sliding rod (406) will be pushed upward. (406) enters the transverse groove (402) under the push of the wedge block (415), so that the extension plate (412) will not block the upward movement of the connecting body (202). When the wedge block (415) is disengaged from the extension plate (412), the push-out plate (404) pushes the sliding rod (406) from the transverse groove (402) to the vertical groove (403) under the elastic force of the spring (405), so that the sliding rod (406) falls to the bottom of the vertical groove (403) under the action of gravity; During this process, the installation sleeve (407) will rise and fall with the sliding rod (406). Since the guide rod (409) on the push rod (408) is slidably connected in the inclined groove (411), when the installation sleeve (407) rises, the push rods (408) at both ends of the crystal rod move inward synchronously, thereby pushing the crystal rod to the central position. When the installation sleeve (407) falls, the push rods at both ends separate and reset outward. Then the connecting body (202) continues to move upward, and the gear 1 (306) and the rack 1 (308) mesh, so that the gear 1 (306) and the double-threaded screw (301) start to rotate. Since the two sections of the thread on the double-threaded screw (301) rotate in opposite directions, the two connecting brackets 4 (303) and the clamping block (304) move inward synchronously, clamping the crystal rod to fix it; When the connecting body (202) moves to the grinding mechanism (5), the driving motor 1 (104) is turned off, the moving connecting body (202) is stopped, and then the driving motor 2 (503) and the driving motor 3 (506) are started to rotate the grinding head (507) and the rotating bracket (504), and then the driving motor 4 (511) is started to drive the gear 2 (512) to rotate. The rotation of the gear 2 (512) drives the rack 2 (510) and the sliding mounting block (502) at both ends to move inward, so that the grinding head (507) contacts the edge of the end face of the crystal rod, and the chamfer is polished. The driving motor 2 (503) and the driving motor 3 (506) are stopped, and the driving motor 4 (511) is reversed to drive the sliding mounting block (502) to separate outward; Finally, the driving motor 1 (104) is started again to move the sliding mounting block (502) downward, and the gear 1 (306) will mesh with the rack 1 (308) again. At this time, the rotation direction of the gear 1 (306) and the double-threaded screw (301) is opposite to that before, so that the clamping block (304) is separated and the crystal rod is no longer fixed. The crystal rod that moves downward will then abut against the guide plate of the unloading support (6) and be blocked by the unloading support (6), so that the crystal rod is separated from the supporting support (204) that continues to move downward, and the idle supporting mechanism (2) will move to the initial position and then stop.

Images