Clamping device for secondary processing of broken crystal quartz

Abstract

The application relates to the technical field of secondary processing of crystalline silicon stone, in particular to a secondary processing clamping device for defective crystalline silicon stone, which comprises a base plate, a right side guard plate is fixedly arranged on the upper surface of the base plate, a fixed horizontal rod is fixedly arranged at the middle of the inner wall of the right side guard plate, and a I-shaped frame is fixedly arranged at the end, away from the right side guard plate, of the fixed horizontal rod. The device can be accurately positioned, the reference is aligned without deviation, the clamping points can be optimally distributed through position adjustment, the workpiece stress is balanced, micro-cracks or machining deformation caused by local stress concentration are avoided, workpiece falling is prevented, equipment and personal injury are avoided, stable clamping can be realized without excessive increase of clamping force, and equipment impact, operator scratches and other safety accidents caused by workpiece falling are completely prevented.

Description

Technical Field

[0001] This application relates to the technical field of secondary processing of crystalline silicon, and in particular to clamping equipment for secondary processing of defective crystalline silicon. Background Technology

[0002] Depleted silica refers to siliceous minerals or solid wastes that are naturally formed or produced during industrial processes, with a silicon content lower than the industrial-grade siliceous raw material standard (usually ≤98%, calculated as SiO2) and a high impurity content (total metallic / non-metallic impurities ≥2%). Its core characteristics are "insufficient silicon content + complex impurities," making it unsuitable for direct use in the production of high-end silicon-based materials. It requires secondary processing (purification, impurity removal, etc.) to enhance its utilization value.

[0003] Regarding the aforementioned technologies, the inventors discovered that due to the irregularity of the defective crystalline silicon, the clamping and positioning deviation cannot be corrected during use. The uneven surfaces and edges of the irregular defective crystalline silicon cannot accurately fit with the clamping surface, resulting in the workpiece center shifting and the reference surface tilting after clamping. The positioning deviation will directly cause the processing target to deviate, uneven force will cause processing deformation, high risk of workpiece slippage, poor operational safety, and lack of anti-slip properties leading to detachment during processing. To prevent detachment, excessive clamping exacerbates safety hazards, requiring repeated manual calibration, which is cumbersome, results in high material loss rate, and serious resource waste. Utility Model Content

[0004] To address the problems mentioned in the background section, this application provides a clamping device for secondary processing of defective silicon crystals.

[0005] The secondary processing clamping device for defective crystalline silicon provided in this application adopts the following technical solution: it includes a base plate, a right side guard plate is fixedly installed on the right side of the upper surface of the base plate, a fixed crossbar is fixedly installed in the middle of the inner wall of the right side guard plate, an I-beam is fixedly installed at the end of the fixed crossbar away from the right side guard plate, a track plate is rotatably installed on the inner wall of the fixed groove at one end of the I-beam via a rotating rod, a sliding groove is fixedly installed on the inner wall of the track plate, a slider is slidably installed in the middle of the inner wall of the sliding groove, and a first extrusion plate is fixedly installed on the outer side of the slider.

[0006] A rotating frame is fixedly installed in the middle of the outer side of the I-beam frame. A diagonal bar is rotatably installed in the middle of the outer side of the rotating frame via a rotating rod. A horizontal plate is rotatably installed at the other end of the diagonal bar via a rotating rod. The middle of the horizontal plate is slidably sleeved on the middle of the fixed horizontal bar.

[0007] A vertical shaft is fixedly installed at the middle position of the bottom of the track plate. The bottom of the vertical shaft is slidably inserted into the inside of the bottom limiting arc plate. The bottom of the bottom limiting arc plate is fixedly installed on the upper surface of the base plate.

[0008] Optionally, a support plate is fixedly sleeved on one end of the fixed cross bar close to the left end, the bottom of the support plate is fixedly arranged at the middle part of the upper surface of the base plate, a moving shaft is fixedly arranged at the position of the support plate close to the bottom, and the other end of the moving shaft is fixedly arranged at the position close to the bottom of the inner wall of the right guard plate.

[0009] Optionally, the sliding groove is configured in a "tu" shape, the width of the sliding rail above the sliding groove is greater than the diameter width of the bolt in the middle of the bolt frame, the width of the sliding rail is smaller than the diameter of the backing plate in the middle of the bolt frame, the width of the sliding rail is smaller than the width of the sliding block at the bottom of the bolt frame, and the outer side of the sliding groove penetrates through the inner side of the track plate.

[0010] Optionally, a second extrusion plate is slidably disposed at one end of the track plate close to the inner side through a square block, anti-slip grooves are formed on the inner sides of both the second extrusion plate and the first extrusion plate, and the number of the first extrusion plate and the second extrusion plate is two, which are respectively slidably disposed on the inner sides of the two track plates.

[0011] Optionally, a left guard plate is fixedly arranged at the left end of the upper surface of the base plate, the left guard plate is configured in an inverted "L" shape, a placement groove is fixedly arranged at the middle position of the top of the left guard plate, the placement groove is configured as a circle, two sets of connection plates are arranged on both sides of the base plate, and through holes are formed at the outer ends of the connection plates.

[0012] Optionally, an exhaust hole is fixedly arranged at the middle part of the edge of the inner wall of the placement groove, the exhaust hole is communicated with a high-pressure air pump tank through an air pipe, and both ends of the outer side of the high-pressure air pump tank are fixedly arranged at the middle position of one side of the left guard plate through connecting rings.

[0013] Optionally, a vertical plate is fixedly arranged at the bottom of the horizontal plate, an electric hydraulic rod is fixedly arranged at the middle part of one side of the vertical plate, the tail end of the electric hydraulic rod is fixedly arranged at the middle part of the inner side of the right guard plate, and the middle position of the bottom of the vertical plate is slidably sleeved on the outer side of the moving shaft.

[0014] In summary, the present application includes the following beneficial technical effects: According to the utility model, by arranging two sets of extrusion plates, track plates and other components, the track plates drive the movable extrusion plates to move close to the incomplete crystalline silicon stone, so that the device can realize accurate positioning, no deviation in reference alignment, the clamping points can be optimally distributed through position adjustment, ensure uniform stress on the workpiece, avoid microcracks or processing deformation caused by local stress concentration, prevent the workpiece from falling off, avoid equipment and personal injury, realize stable clamping without excessively increasing the clamping force, and completely eliminate safety accidents such as equipment collision and operator scratching caused by the falling of the workpiece.

[0015] This invention utilizes components such as a placement slot and a high-pressure air pump tank to remove residual silicon crystal debris from the placement slot, thus eliminating impurities on the positioning reference surface. This ensures precise clamping, prevents debris from interfering with the clamping mechanism, reduces mechanical jamming, avoids secondary damage to the workpiece, prevents debris from contaminating the processing environment, guarantees process purity, protects key components of the processing and clamping equipment, reduces equipment wear, and lowers maintenance costs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure in the embodiments of this application; Figure 2 This is a three-dimensional structural diagram of the bottom of the right side guard plate in an embodiment of this application; Figure 3 This is a schematic diagram of the three-dimensional exploded structure of the track slab in an embodiment of this application; Figure 4 This is a top view of the overall structure in the embodiments of this application; Figure 5 This is a schematic diagram of the front structure in an embodiment of this application.

[0017] Reference numerals: 1. Base plate; 2. Right side guard plate; 3. First extrusion plate; 4. Track plate; 5. Left side guard plate; 6. Diagonal bar; 7. Bottom limiting arc plate; 8. Rotating frame; 9. I-beam frame; 10. Horizontal plate; 11. Fixed crossbar; 12. Electro-hydraulic rod; 13. Moving shaft; 14. Vertical plate; 15. Support plate; 16. High-pressure air pump tank; 17. Slider; 18. Bolt bracket; 19. Slide groove; 20. Vertical shaft; 21. Second extrusion plate; 22. Connecting plate; 23. Placement groove. Detailed Implementation

[0018] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0019] This application discloses a clamping device for secondary processing of defective crystalline silicon. For example... Figure 1 and Figure 2As shown, the system includes a base plate 1. A left protective plate 5 is fixedly installed on the left end of the upper surface of the base plate 1. The left protective plate 5 is shaped like an inverted "L". A placement groove 23 is fixedly installed at the middle position of the top of the left protective plate 5. The placement groove 23 is circular. Two sets of connecting plates 22 are installed on both sides of the base plate 1. The outer ends of the connecting plates 22 are provided with through holes. The left protective plate 5 can not only provide height support for the secondary processing of defective silicon, but also restrict the position of the defective silicon through the placement groove 23 in the middle. An exhaust hole is fixedly installed in the middle of the inner wall edge of the placement groove 23. The exhaust hole is connected to a high-pressure air pump tank 16 through an air pipe. The two ends of the high-pressure air pump tank 16 are fixedly installed in the middle position on one side of the left protective plate 5 through connecting rings. The gas generated by the high-pressure air pump tank 16 is blown into the interior of the placement groove 23. The high-pressure gas removes the defective silicon debris remaining in the placement groove from subsequent processing, removes impurities from the positioning reference surface, ensures accurate clamping, avoids debris interference with the clamping mechanism, reduces mechanical jamming, and avoids secondary damage to the workpiece by debris.

[0020] Please see Figure 2 A right side guard plate 2 is fixedly installed on the right side of the upper surface of the base plate 1. A fixed crossbar 11 is fixedly installed in the middle of the inner wall of the right side guard plate 2. A support plate 15 is fixedly sleeved at one end of the fixed crossbar 11 near the left end. The bottom of the support plate 15 is fixedly installed in the middle of the upper surface of the base plate 1. A movable shaft 13 is fixedly installed near the bottom of the support plate 15. The other end of the movable shaft 13 is fixedly installed near the bottom of the inner wall of the right side guard plate 2. The support plate 15 provides support for the fixed crossbar 11 and the I-beam 9 at one end, increasing the stability of the I-beam 9.

[0021] Please see Figure 3 An I-beam 9 is fixedly installed at the end of the fixed crossbar 11 away from the right guard plate 2. A track plate 4 is rotatably installed on the inner wall of the fixed groove at one end of the I-beam 9 via a rotating rod. A second extrusion plate 21 is slidably installed on the inner end of the track plate 4 via a square block. Anti-slip grooves 19 are provided on the inner sides of both the second extrusion plate 21 and the first extrusion plate 3. There are two of each of the first extrusion plate 3 and the second extrusion plate 21, which are slidably installed on the inner sides of the two track plates 4 respectively. The anti-slip grooves on the inner sides of the first extrusion plate 3 and the second extrusion plate 21 prevent the workpiece from falling off, avoid equipment and personal injury, and achieve stable clamping without excessively increasing the clamping force.

[0022] Please see Figure 3, a sliding groove 19 is fixedly arranged on the inner wall of the track plate 4, the sliding groove 19 is configured in a "earth" shape, the width of the sliding rail above the sliding groove 19 is greater than the diameter width of the bolt in the middle of the bolt frame 18, the width of the sliding rail is smaller than the diameter of the backing plate in the middle of the bolt frame 18, the width of the sliding rail is smaller than the width of the sliding block 17 at the bottom of the bolt frame 18, the outer side of the sliding groove 19 penetrates the inner side of the track plate 4, the sliding groove 19 is set to a special shape, so that the first extrusion plate 3 can move when the bolt frame 18 is in a loosened state, and is prevented from falling off the inside of the sliding groove 19 during movement at the same time, when the bolt shank in the middle of the bolt frame 18 moves up and down, the position of the first extrusion plate 3 is fixed, the sliding block 17 is slidably arranged in the middle of the inner wall of the sliding groove 19, and the first extrusion plate 3 is fixedly arranged on the outer side of the sliding block 17.

[0023] See Figure 2 , a rotating frame 8 is fixedly arranged in the middle of the outer side of the I-shaped frame 9, the middle of the outer side of the rotating frame 8 is rotatably provided with an inclined rod 6 via a rotating rod, the other end of the inclined rod 6 is rotatably provided with a transverse plate 10 via a rotating rod, the bottom of the transverse plate 10 is fixedly provided with a vertical plate 14, the middle of one side of the vertical plate 14 is fixedly provided with an electric hydraulic rod 12, the tail end of the electric hydraulic rod 12 is fixedly arranged at the middle of the inner side of the right guard plate 2, the middle position of the bottom of the vertical plate 14 is slidably sleeved on the outer side of the moving shaft 13, the electric hydraulic rod 12 provides power for the movement of the transverse plate 10, the movement of the transverse plate 10 drives the inclined rod 6 to drive the two sets of track plates 4 to rotate at two ends of the I-shaped frame 9, under the action of the two sets of track plates 4 moving close to each other at the same time, the broken crystalline silicon stone is clamped, and the middle of the transverse plate 10 is slidably sleeved on the middle of the fixed cross rod 11.

[0024] See Figure 3 , a vertical shaft 20 is fixedly arranged at the middle position of the bottom of the track plate 4, the bottom of the vertical shaft 20 is slidably inserted into the inside of the bottom limit arc plate 7, and the bottom of the bottom limit arc plate 7 is fixedly arranged on the upper surface of the base plate 1.

[0025] The implementation principle of the secondary processing clamping device for defective crystalline silicon in this application embodiment is as follows: Before the device is started, each core component is in an initial standby state: the two sets of track plates 4 are in an open posture, the first extrusion plate 3 and the second extrusion plate 21 are both located in the initial position inside the track plates 4, the electric hydraulic rod 12 is in a fully extended state, and the high-pressure air pump tank 16 is in a pre-pressurized state. When defective crystalline silicon processing is required, the device first executes the cleaning procedure of the placement tank 23. The high-pressure air pump tank 16 delivers high-pressure gas to the exhaust hole on the inner wall edge of the placement tank 23 through the connecting air pipe. The airflow blows the inside of the placement tank 23 in a directional manner. During this process, the high-pressure gas can quickly remove the defective crystalline silicon debris of the particle size remaining in the placement tank 23, ensuring the flatness of the placement tank 23 as the workpiece positioning reference surface, avoiding the formation of "virtual support" by debris or embedding in the gaps of subsequent moving parts, and providing a clean and stable foundation for subsequent workpiece positioning and clamping. After cleaning is completed, the high-pressure air pump tank 16 stops supplying air and waits for the workpiece to be placed in. The operator places the irregular, defective silicon crystal to be processed into the placement slot 23. The inverted "L"-shaped left side guard plate 5 provides stable height support for the placement slot 23 through its own structure. The circular placement slot 23 forms an initial radial limit on the defective silicon crystal, limiting the large displacement of the workpiece on the horizontal plane, so that the workpiece processing reference surface is initially aligned with the processing center area of ​​the equipment. The connecting plates 22 on both sides of the base plate 1 are fixed to the external processing platform through the through holes at their outer ends, further improving the overall stability of the equipment and preventing the equipment from shaking during processing and affecting the positioning accuracy of the workpiece. After the workpiece is positioned, the electric hydraulic rod 12 starts and retracts. Its end is fixed to the middle of the inner side of the right guard plate 2. During the retraction, it drives the vertical plate 14 connected to it to move horizontally to the left along the moving shaft 13. The horizontal plate 10 at the top of the vertical plate 14 moves synchronously with the vertical plate 14. The middle of the horizontal plate 10 is slidably sleeved on the outside of the fixed crossbar 11. During the movement, it pulls the two sets of diagonal rods 6. One end of the diagonal rod 6 is rotatably connected to the horizontal plate 10 through a rotating rod, and the other end is rotatably connected to the rotating frame 8 through a rotating rod. The horizontal movement of the horizontal plate 10 is converted into an angle change of the rotating frame 8 through the diagonal rod 6, which in turn drives the track plates 4 at both ends of the I-beam 9 to rotate around the rotating rod on the I-beam 9. During this process, the vertical shaft 20 at the bottom of the track plate 4 slides along the arc trajectory of the bottom limiting arc plate 7, providing guidance and limiting for the rotation of the track plate 4, ensuring that the two sets of track plates 4 always maintain a symmetrical movement trend. As the two sets of track plates 4 gradually move closer, the sliding blocks 17 in the inner sliding grooves 19 of the track plates 4 drive the first extrusion plate 3 and the second extrusion plate 21 to move synchronously toward the workpiece. Since the sliding groove 19 adopts a special "earth"-shaped structure, the bolt at the middle part of the bolt frame 18 can move up and down in the wide slide rail above the sliding groove 19. When the bolts are loosened, the first extrusion plate 3 and the second extrusion plate 21 can be pushed to adjust their positions along the sliding groove 19, so that the inner sides of the extrusion plates can be precisely attached to the concave and convex surfaces of the irregular workpiece; after attachment, the bolts are tightened, and the backing plate at the middle part of the bolt frame 18 cooperates with the narrow slide rail of the sliding groove 19 to realize the position fixation of the extrusion plates. At the same time, the anti-slip grooves 19 on the inner sides of the first extrusion plate 3 and the second extrusion plate 21 increase the friction force with the workpiece, so that stable clamping can be achieved without excessively increasing the clamping force, which not only avoids the cracking of the workpiece caused by excessive clamping force, but also eliminates the risk of the workpiece slipping and falling off during the machining process, and finally completes the adaptive and precise clamping of the irregular and incomplete crystalline silicon stone; If new debris is generated in the machining gap, the high-pressure air pump tank 16 can be started again to blow away the residual debris through the exhaust holes of the placement groove 23, so as to prevent the debris from contaminating the machining environment or adhering to the surface of the workpiece and affecting the product purity. If the machining angle of the workpiece needs to be adjusted, the bolts of the bolt frame 18 can be loosened to push the first extrusion plate 3 and the second extrusion plate 21 to finely adjust their positions along the sliding grooves 19 of the track plate 4, or the clamping force can be adjusted by the slight expansion and contraction of the electric hydraulic rod 12 to ensure that the workpiece is always in the optimal machining posture. At this stage, the support plate 15 forms a stable support for the fixed cross bar 11 and the I-shaped frame 9, which further improves the vibration resistance of the clamping mechanism and avoids the clamping loosening caused by vibration during the machining process; After the workpiece is machined, first loosen the bolts of the bolt frame 18 to separate the first extrusion plate 3 and the second extrusion plate 21 from the surface of the workpiece, then control the electric hydraulic rod 12 to extend, and drive the track plates 4 to rotate reversely to the open state through the transverse plate 10 and the diagonal rod 6, so that the vertical shaft 20 at the bottom of the track plate 4 returns to the initial position of the bottom limit arc plate 7. After the operator takes out the machined workpiece, the equipment restarts the high-pressure air pump tank 16 to clean the placement groove 23 and remove the residual machining debris, and then all components return to the initial standby state, waiting for the next machining cycle.

[0026] The above are all preferred embodiments of the present application, which are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made according to the structure, shape and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A clamping device for secondary processing of defective crystalline silicon, comprising a base plate (1), characterized in that: A right guard plate (2) is fixedly arranged on the right side of the upper surface of the base plate (1), a fixed cross bar (11) is fixedly arranged in the middle of the inner wall of the right guard plate (2), an I-shaped frame (9) is fixedly arranged at the end of the fixed cross bar (11) far away from the right guard plate (2), a track plate (4) is rotatably arranged on the inner wall of the fixing groove at one end of the I-shaped frame (9) through a rotating rod, a sliding groove (19) is fixedly arranged on the inner wall of the track plate (4), a sliding block (17) is slidably arranged in the middle of the inner wall of the sliding groove (19), and a first extrusion plate (3) is fixedly arranged on the outer side of the sliding block (17); A rotating frame (8) is fixedly arranged in the middle of the outer side of the I-shaped frame (9), an inclined rod (6) is rotatably arranged in the middle of the outer side of the rotating frame (8) through a rotating rod, the other end of the inclined rod (6) is rotatably provided with a transverse plate (10) through a rotating rod, and the middle part of the transverse plate (10) is slidably sleeved on the middle part of the fixed cross bar (11); A vertical shaft (20) is fixedly arranged at the middle position of the bottom of the track plate (4), the bottom of the vertical shaft (20) is slidably inserted into the inner part of a bottom limiting arc plate (7), and the bottom of the bottom limiting arc plate (7) is fixedly arranged on the upper surface of the base plate (1).

2. The clamping device for secondary processing of defective crystalline silicon according to claim 1, characterized in that: A support plate (15) is fixedly sleeved on the end of the fixed cross bar (11) close to the left end, the bottom of the support plate (15) is fixedly arranged at the middle of the upper surface of the base plate (1), a moving shaft (13) is fixedly arranged at the position of the support plate (15) close to the bottom, and the other end of the moving shaft (13) is fixedly arranged at the position of the inner wall of the right guard plate (2) close to the bottom.

3. The clamping device for secondary processing of defective crystalline silicon according to claim 1, characterized in that: The sliding groove (19) is configured in a "土" shape, the width of the slide rail above the sliding groove (19) is greater than the diameter width of the bolt in the middle of the bolt frame (18), the width of the slide rail is smaller than the diameter of the backing plate in the middle of the bolt frame (18), the width of the slide rail is smaller than the width of the sliding block (17) at the bottom of the bolt frame (18), and the outer side of the sliding groove (19) penetrates through the inner side of the track plate (4).

4. The clamping device for secondary processing of defective crystalline silicon according to claim 1, characterized in that: A second extrusion plate (21) is slidably arranged at the end of the track plate (4) close to the inner side through a square block, anti-slip grooves (19) are formed on the inner sides of both the second extrusion plate (21) and the first extrusion plate (3), the number of the first extrusion plate (3) and the second extrusion plate (21) is two, and they are respectively slidably arranged on the inner sides of the two track plates (4).

5. The clamping device for secondary processing of defective crystalline silicon according to claim 1, characterized in that: A left guard plate (5) is fixedly arranged at the left end of the upper surface of the base plate (1), the left guard plate (5) is configured in an inverted "L" shape, a placement groove (23) is fixedly arranged at the middle position of the top of the left guard plate (5), the placement groove (23) is arranged to be circular, two sets of connecting plates (22) are arranged on both sides of the base plate (1), and a through hole is formed at the outer end of each connecting plate (22).

6. The clamping device for secondary processing of defective silicon crystals according to claim 5, characterized in that: An exhaust hole is fixedly arranged in the middle of the edge of the inner wall of the placement groove (23), the exhaust hole is communicated with a high-pressure air pump tank (16) through an air pipe, and both ends of the outer side of the high-pressure air pump tank (16) are fixedly arranged at the middle position of one side of the left guard plate (5) through connecting rings.

7. The clamping device for secondary processing of defective crystalline silicon according to claim 1, characterized in that: A vertical plate (14) is fixedly installed at the bottom of the horizontal plate (10). An electric hydraulic rod (12) is fixedly installed in the middle of one side of the vertical plate (14). The end of the electric hydraulic rod (12) is fixedly installed in the middle of the inner side of the right guard plate (2). The middle position of the bottom of the vertical plate (14) is slidably sleeved on the outside of the moving shaft (13).

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