Lifting centering clamping device for conveying silicon rod of crystal silicon rod grinding machine

Abstract

The invention belongs to the technical field of silicon single crystal rod processing, and particularly relates to a lifting centering clamping device for conveying a silicon rod of a crystal silicon rod grinding machine, which comprises a cabinet, two moving panels which slide oppositely are symmetrically distributed on the upper side of the cabinet, and first brackets are fixedly connected to the two ends, close to each other, of the upper sides of the two moving panels; a rotating disc is rotationally connected into each first support, a plurality of sliding blocks are slidably connected into each rotating disc, the end of each sliding block is fixedly connected with a clamping jaw, a set of sliding grooves are formed in the positions, located on the two sides of each sliding block, of each rotating disc, a sliding pin is slidably connected into each set of sliding grooves, and each sliding pin is fixedly connected with the corresponding sliding block. Each group of clamping jaws is used for clamping the end part and the edge of the end part of the crystal bar, a lifting part is arranged in the cabinet, and a stirring sheet is matched with a convex ring, so that when the clamping jaws clamp the crystal bar, the specific clamping jaws are kept to retract to reserve a polishing area, a groove is not required to be pre-processed in the end part of the crystal bar to be matched with an ejector pin, and the end part material of the crystal bar can also be used; raw materials are saved.

Description

Technical Field

[0001] The invention belongs to the technical field of single crystal silicon rod processing, and in particular relates to a lifting, centering and clamping device for conveying silicon rods on a crystal silicon rod grinder. Background Art

[0002] As an important semiconductor material, silicon single crystal has good electrical properties and thermal stability. Since it was discovered and used in the 1960s, it has quickly replaced germanium single crystal as the main material for semiconductors. Because of its good high temperature resistance and radiation resistance, it is particularly suitable for the production of high-power devices and has become the most widely used semiconductor material. Most integrated circuit semiconductor devices are made of silicon materials.

[0003] When producing single crystal silicon products, they are first pulled and grown in a single crystal furnace to form cylindrical single crystal silicon rods, and then the waste at the end of the single crystal silicon rods is cut off, or the single crystal silicon rods are cut to shorten the length. At this time, the surface of the single crystal silicon rod will remain with annular marks formed during the drawing process, so the surface of the single crystal silicon rod needs to be ground and polished to make its surface regular and smooth, and then go through processes such as slicing, cleaning, chamfering, grinding and re-cleaning. Later, the silicon wafers need to be subjected to processes such as texturing, diffusion, crystallization and sintering before they can be manufactured into semiconductor devices or solar cells for photovoltaic power generation.

[0004] In the prior art, a centerless grinder or a centering grinder is usually used to grind the single crystal silicon rod. When the concentricity requirement is high, a centering grinder is generally used for grinding. When the surface of the single crystal silicon rod is ground, the single crystal silicon rod usually needs to be placed on a machine tool, and then one end of the single crystal silicon rod is clamped by a three-jaw chuck. A positioning groove is provided on the other end face of the single crystal silicon rod, and a positioning column is inserted into the positioning groove to limit the rotation position of the single crystal silicon rod; that is, the three-jaw chuck provides rotational power for the single crystal silicon rod, and the rotation axis is determined by the cooperation of the positioning column and the positioning groove; and in actual rolling, the clamping position of the single crystal silicon rod by the three-jaw chuck is difficult to be directly rolled, and the position of the single crystal silicon rod originally clamped by the three-jaw chuck needs to be exposed during the secondary rolling, and then the exposed position is rolled for the second time, which increases the rolling process and reduces the rolling efficiency of the single crystal silicon rod.

[0005] A Chinese patent with publication number CN118081498B discloses a single crystal silicon rod grinding machine, comprising a workbench, a first hydraulic cylinder is installed on the top of the workbench, a first bracket is arranged at the output end of the first hydraulic cylinder, a driving roller is horizontally installed on the surface of the first bracket, and the driving roller is made of deformable rubber; support shafts are vertically installed at the centers of both ends of the driving roller; by setting the driving roller, docking grooves are opened at both ends of the rod body, and the docking shaft is inserted into the docking groove to limit the rotation position of the single crystal silicon rod, and the driving roller provides rotational power for the single crystal silicon rod, and then cooperates with the grinding tool to roll and grind; during the entire rolling process, the surface of the rod body can be rolled and grinded at one time, avoiding the three-jaw chuck clamping the rod body to hinder the integrity of the rolling.

[0006] However, the above patent still has the following disadvantages:

[0007] 1. According to the description of the above patent, the above patent drives the single crystal silicon rod to rotate by means of a driving roller, but the axial position of the driving roller cannot be changed, which limits the diameter of the clamped crystal rod and cannot drive single crystal silicon rods of different diameters to rotate.

[0008] 2. The above patent pre-opens grooves at both ends of the single crystal silicon rod to facilitate clamping the single crystal silicon rod by means of a pin. However, this method requires an additional process of opening the grooves, and it is necessary to consider the concentricity of the grooves and the pins, which wastes extra time and increases the difficulty of the work, affects the continuity of processing and production, and reduces processing efficiency.

[0009] 3. According to the above patent description, the single crystal silicon rod needs to have grooves opened at both ends before it can be clamped with a pin. Therefore, the materials at both ends of the single crystal silicon rod cannot be used after slicing, resulting in a waste of raw materials and an increase in production costs. Summary of the invention

[0010] In order to overcome the deficiencies of the prior art, the present invention solves the technical problem that, by providing an inclined sliding slider and a clamping jaw, it is possible to adapt to the stable clamping of crystal rods of different diameters, and by providing a movable panel with an adjustable position, it is possible to adapt to the clamping of crystal rods of different lengths, thereby achieving stable clamping of crystal rods of different sizes, with a wide range of applications. By providing the cooperation of the paddle and the convex ring, the clamping jaws corresponding to the convex ring are always kept away from the surface of the crystal rod and avoid the grinding area during the process of clamping the crystal rod and driving and rotating. Compared with the traditional clamping method of the three-jaw chuck and the ejector pin, there is no need to turn around and grind again after one grinding and polishing, thereby improving production efficiency. The production processing efficiency is improved, and compared with the double-pin clamping method, there is no need to pre-process a groove at the end of the crystal rod to cooperate with the ejector, thereby saving steps and improving processing efficiency. Since there is no need to process the groove, the material at the end of the crystal rod can also be used, saving raw materials. By arranging the support seat and the roller seat, the feeding system of the previous processing process of the crystal rod can be connected to improve the continuity of automated production. The support roller can lift the crystal rod to the corresponding position of the clamping claw, which is convenient for the clamping claw to clamp the crystal rod. In addition, the support roller can bear the bottom side of the crystal rod to provide additional supporting force, ensure the force balance on the crystal rod, and avoid the crystal rod being subjected to the pressure of the grinding device and uneven force, which may cause defects such as cracks in the crystal rod.

[0011] In order to achieve the above-mentioned purpose, the present invention provides the following technical solution: a lifting, centering and clamping device for conveying silicon rods by a crystalline silicon rod grinder, comprising:

[0012] A cabinet, wherein two movable panels sliding in opposite directions are symmetrically arranged on the upper side of the cabinet, and two ends of the upper sides of the two movable panels close to each other are fixedly connected with a first bracket, a turntable is rotatably connected in each of the first brackets, and a plurality of sliders are evenly distributed and slidably connected in each of the turntables in a circumferential direction, and a clamping claw is fixedly connected at the end of each of the sliders;

[0013] Slide grooves, each of the rotating discs is provided with a group of slide grooves on both sides of each slider, each group of the slide grooves is tilted, and each group of the slide grooves is slidably connected with a slide pin;

[0014] Each of the sliding pins is fixedly connected to the corresponding slider, each of the clamping jaws is L-shaped, each group of the clamping jaws is used to clamp the end and the end edge of the crystal rod, and a lifting component is arranged in the cabinet.

[0015] Furthermore, each of the sliding blocks is slidably connected to a connecting rod at one end away from the clamping claw, and the two ends of the two movable panels away from each other are respectively fixedly connected to a second bracket, and each of the second brackets is fixedly connected to a first electric push cylinder on one side away from the first bracket. The extended end of each of the first electric push cylinders passes through the second bracket and is fixedly connected to a top plate, and each of the top plates can be abutted against the corresponding end of the connecting rod, and a fan-shaped bevel is opened at the top of each of the top plates.

[0016] Furthermore, each connecting rod is fixedly connected to the end away from the slider with a steel ball head, a steel ball is rolled inside each steel ball head, a steel ball groove is opened on the surface of each top plate in the rolling area of ​​the steel ball, and each steel ball groove is opened with an oblique opening at the edge of the notch.

[0017] Furthermore, each of the top plates is rotatably connected to a transmission plate on one side close to the turntable, each of the transmission plates is slidably connected to a corresponding connecting rod, a gear ring is fixedly connected to the outer side of each transmission plate, a gear seat is fixedly connected to each movable panel, a gear is rotatably connected between each gear seat and a corresponding second bracket, each gear is slidably and meshingly connected to a corresponding gear ring, a reduction box is fixedly connected to a side of each second bracket away from the turntable, a power output end of each reduction box is transmission-connected to a corresponding gear, and a power input end of each reduction box away from the second bracket is transmission-connected to a first motor.

[0018] Furthermore, a convex ring surrounding the outer side of the connecting rod is provided between each of the first brackets and the corresponding transmission plate, a connecting plate is fixedly connected between each of the convex rings and the corresponding top plate, a slope is provided on the side of each of the convex rings away from the rotating plate at a position corresponding to the notch, a paddle capable of sliding on the slope of the convex ring is fixedly connected to the outer side of each of the connecting rods, and a spring surrounding the outer side of the connecting rod is connected between each of the paddles and the corresponding transmission plate.

[0019] Furthermore, a group of telescopic connecting sleeves are fixedly connected at the axis between each transmission disk and the corresponding turntable, and each group of telescopic connecting sleeves can freely telescope and slide. A group of sliding rods are fixedly connected between each second bracket and the corresponding first bracket, and each group of sliding rods is slidably connected to the corresponding top plate and convex ring.

[0020] Furthermore, the cabinet surface is symmetrically distributed and fixedly connected with slide rails on both sides of each movable panel, each of the slide rails is slidably connected with a group of sliding seats, and each group of sliding seats is fixedly connected to the bottom side of the corresponding movable panel.

[0021] Furthermore, a group of screw seats are fixedly connected to the surface of the cabinet below each movable panel in the moving direction of the movable panel, a screw is rotatably connected between each group of screw seats, a second motor is fixedly connected to the end of each group of screw seats, and the power output end of each second motor is transmission-connected to the screw.

[0022] Furthermore, the lifting component includes a roller seat, and two roller seats are symmetrically distributed in the middle of the cabinet. A support roller is rotatably connected to each roller seat. A third bracket is fixedly connected to the cabinet below the two roller seats, and a second electric push cylinder is fixedly connected to the third bracket below each roller seat. The extended end of each second electric push cylinder passes through the third bracket and is fixedly connected to the corresponding roller seat.

[0023] Furthermore, the cabinet surface is symmetrically distributed and fixedly connected with linear drive rails at both ends of the roller seat, and a group of support seats are fixedly connected to the movable end above each linear drive rail.

[0024] In summary, compared with the prior art, the beneficial effects of the present invention are:

[0025] (1) By setting an inclined sliding slider and a clamping claw, it is possible to stably clamp crystal rods of different diameters, and by setting a movable panel with adjustable position, it is possible to clamp crystal rods of different lengths, thereby achieving stable clamping of crystal rods of different sizes, with a wide range of applications.

[0026] (2) By setting the cooperation between the paddle and the convex ring, the clamping jaws corresponding to the convex ring are always kept away from the surface of the crystal rod and out of the grinding area during the process of clamping the crystal rod and driving and rotating. Compared with the traditional clamping method of three-jaw chuck and ejector pin, there is no need to turn around and grind again after one grinding and polishing, thereby improving production and processing efficiency.

[0027] (3) Compared with the double ejector pin clamping method, there is no need to pre-process a groove at the end of the crystal rod to match the ejector pin, thereby saving steps and improving processing efficiency. In addition, since there is no need to process the groove, the material at the end of the crystal rod can also be used, saving raw materials.

[0028] (4) By setting up a support seat and a roller seat, the feeding system of the previous processing process of the crystal rod can be connected to improve the continuity of automated production. The support roller can be used to lift the crystal rod to the corresponding position of the clamp, which is convenient for the clamp to clamp the crystal rod. In addition, the support roller can support the bottom side of the crystal rod to provide additional support force to ensure the force balance on the crystal rod, thereby preventing the crystal rod from being subjected to pressure from the grinding device and uneven force, resulting in defects such as cracks in the crystal rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a three-dimensional schematic diagram of this patent.

[0030] Figure 2 This is a side view of the patent.

[0031] Figure 3 for Figure 2 Stereoscopic cross-sectional view at AA in the middle.

[0032] Figure 4 for Figure 3 A partial enlarged view of point B in the middle.

[0033] Figure 5 This is a schematic diagram of the structure of the main mechanism of this patent.

[0034] Figure 6 This is a structural diagram of the main mechanism of this patent from another perspective.

[0035] Figure 7 This is a schematic diagram of the structure of the turntable in this patent.

[0036] Figure 8 This is a schematic diagram of the structure of the top plate in this patent.

[0037] Explanation of the reference numerals in the accompanying drawings: cabinet 10; movable panel 11; first bracket 12; turntable 13; slider 14; clamping claw 15; slide groove 16; sliding pin 17; connecting rod 18; paddle 19; convex ring 20; steel ball head 21; steel ball 22; top plate 23; steel ball groove 24; notch 25; bevel 26; transmission plate 27; spring 28; gear ring 29; gear 30; gear seat 31; reduction gear box 32; first motor 33; first electric push cylinder 34; second bracket 35; connecting plate 36; telescopic connecting sleeve 37; sliding rod 38; screw slider 39; screw seat 40; screw 41; second motor 42; slide rail 43; sliding seat 44; linear drive rail 45; support seat 46; roller seat 47; support roller 48; third bracket 49; second electric push cylinder 50. DETAILED DESCRIPTION

[0038] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0039] like Figure 1-8 As shown, a lifting, centering and clamping device for conveying silicon rods on a crystal silicon rod grinder comprises a movable panel 11, two movable panels 11 are arranged opposite to each other, a first bracket 12 is fixedly connected to the upper side of each movable panel 11, a turntable 13 is rotatably connected in each first bracket 12, a group of sliders 14 are slidably connected in each turntable 13 in a uniformly distributed circumferential direction, an L-shaped clamping jaw 15 is fixedly connected at the end of each slider 14, two groups of clamping jaws 15 can clamp the end and end edge of the crystal rod, an inclined sliding pin 17 is fixedly connected in each slider 14, and an inclined sliding groove 16 is provided on each turntable 13 at both sides of each slider 14, and each group of sliding grooves 16 is slidably connected to the corresponding sliding pin 17.

[0040] By providing a sliding slider 14 and a clamping jaw 15, it is possible to stably clamp crystal rods of different diameters, and when the clamping jaw 15 clamps the crystal rod and drives the crystal rod to rotate, the clamping jaw 15 at a specific position can be tilted to avoid the position where the grinding device grinds and polishes the crystal rod, so that the crystal rod can be comprehensively and fully polished. Compared with the traditional three-jaw chuck and ejector clamping method, there is no need to turn and polish again after one grinding and polishing, thereby improving production and processing efficiency. Compared with the double ejector clamping method, there is no need to pre-process a groove at the end of the crystal rod to cooperate with the ejector, thereby saving steps and improving processing efficiency. Since there is no need to process the groove, the material at the end of the crystal rod can also be used, saving raw materials.

[0041] like Figure 1-8 As shown, the surface of the cabinet 10 is symmetrically distributed and fixedly connected with slide rails 43 on both sides of each movable panel 11, and a group of sliding seats 44 are slidably connected to each slide rail 43, and each group of sliding seats 44 is fixedly connected to the bottom side of the corresponding movable panel 11. The surface of the cabinet 10 is located below each movable panel 11 and is fixedly connected with a group of screw seats 40 in the moving direction of the movable panel 11, and each group of screw seats 40 is rotatably connected with a screw 41, and each end of each group of screw seats 40 is fixedly connected with a second motor 42, and the power output end of each second motor 42 is transmission-connected to the screw 41.

[0042] By setting the lead screw 41 and the lead screw slider 39, the distance between the two movable panels 11 can be stably adjusted. By cooperating with the adjustment of the clamping jaws 15 to the different diameters of the crystal rods, adaptive adjustment can be made to the crystal rods of different lengths to further meet the requirements of stable clamping of crystal rods of different sizes.

[0043] like Figure 1-8 As shown, one end of each slider 14 away from the clamp 15 is slidably connected to a connecting rod 18, one end of the upper side of each movable panel 11 away from the first bracket 12 is fixedly connected to a second bracket 35, one side of each second bracket 35 away from the first bracket 12 is fixedly connected to a first electric push cylinder 34, an extended end of each first electric push cylinder 34 passes through the second bracket 35 and is fixedly connected to a top plate 23, each edge is fixedly connected to a group of connecting plates 36, one end of each group of connecting plates 36 away from the second bracket 35 is fixedly connected to a convex ring 20 surrounding the outside of the connecting rod 18, a fan-shaped notch 25 is provided at the top of each top plate 23 within the moving range of the connecting rod 18, a uniformly transitioned slope is provided on one side of each convex ring 20 close to the top plate 23 at the corresponding position of the notch 25, and a paddle 19 capable of sliding on the surface of the convex ring 20 is fixedly connected to each connecting rod 18.

[0044] By providing the top plate 23 and the connecting rod 18, the top plate 23 can apply a thrust to the connecting rod 18 and thus control the slider 14 to slide in the direction of the slide groove 16 in the turntable 13, so as to achieve the function of adjusting the clamping diameter of the clamping jaw 15. By providing the convex ring 20 and the paddle 19, the connecting rod 18 above the crystal rod is automatically retracted, so that the clamping jaw 15 moves obliquely to avoid the grinding position, and the notch 25 is provided to reserve moving space for the retracted connecting rod 18.

[0045] A steel ball head 21 is fixedly connected to one end of each connecting rod 18 away from the slider 14, and a steel ball 22 is rotatably connected in each steel ball head 21. Figure 1-8 As shown, each top plate 23 is provided with a steel ball groove 24 at the moving range of the steel ball 22. The top plate 23 and the steel ball groove 24 are surface hardened. Each steel ball 22 rolls on the surface of the corresponding steel ball groove 24. Each steel ball groove 24 is provided with a bevel 26 at the edge of the notch 25. A group of sliding rods 38 are fixedly connected between each second bracket 35 and the corresponding first bracket 12. Each group of sliding rods 38 is slidably connected to the corresponding top plate 23 and the convex ring 20.

[0046] Since the top plate 23 needs to apply a thrust to the connecting rod 18, the end of the connecting rod 18 needs to abut against the surface of the top plate 23 and make a circular motion. By providing the steel ball 22, the steel ball 22 can be used to roll on the steel ball groove 24 to reduce the friction between the connecting rod 18 and the surface of the top plate 23 when making a circular motion, thereby reducing wear and improving service life. The provision of the bevel 26 can facilitate the steel ball 22 to slide back into the steel ball groove 24.

[0047] By providing the slide bar 38, a guiding effect is played on the top plate 23 and the convex ring 20, thereby improving the stability of the top plate 23 when applying thrust to the connecting rod 18, and ensuring the stability of the convex ring 20 to ensure that the connecting rod 18 can stably retract at a specific position.

[0048] like Figure 1-8 As shown, each top plate 23 is rotatably connected to one end of the turntable 13 with a transmission disk 27, each transmission disk 27 is slidably connected to the corresponding connecting rod 18, a spring 28 surrounding the outside of the connecting rod 18 is connected between the transmission disk 27 and the corresponding paddle 19, each transmission disk 27 is fixedly connected to the corresponding turntable 13 axis with a telescopic connecting sleeve 37 that can slide freely, a gear ring 29 is fixedly connected to the outside of each transmission disk 27, a gear seat 31 is fixedly connected to the upper side of each movable panel 11, a gear 30 is rotatably connected between each gear seat 31 and the corresponding second bracket 35, each gear 30 is slidably and meshingly connected to the corresponding gear ring 29, a reduction box 32 is fixedly connected to the side of each second bracket 35 away from the turntable 13, the power output end of each reduction box 32 is transmission-connected to the corresponding gear 30, and the power input end of each reduction box 32 away from the second bracket 35 is transmission-connected to the first motor 33.

[0049] By providing the transmission disk 27 and the telescopic connecting sleeve 37, the turntable 13 and the connecting rod 18 can be driven to rotate stably and synchronously, thereby driving the crystal rod clamped by the clamp 15 to rotate, thereby achieving grinding and polishing of the crystal rod. By providing the spring 28, a reset thrust can be provided after the paddle 19 passes through the convex ring 20, so that the clamp 15 clamps the crystal rod again, and the gear ring 29 and the gear 30 are slid and meshed for transmission, so that even if the transmission disk 27 moves in the axial direction, the gear ring 29 and the gear 30 always maintain a meshed transmission state, thereby ensuring the continuity and stability of the power output.

[0050] like Figure 1-8 As shown, the lifting component includes a roller seat 47, and two roller seats 47 are symmetrically distributed in the middle of the cabinet 10. A support roller 48 is rotatably connected to each roller seat 47. A third bracket 49 is fixedly connected below the two roller seats 47 in the cabinet 10, and a second electric push cylinder 50 is fixedly connected to the third bracket 49 below each roller seat 47. The extended end of each second electric push cylinder 50 passes through the third bracket 49 and is fixedly connected to the corresponding roller seat 47. Linear drive rails 45 are symmetrically distributed and fixedly connected at both ends of the roller seats 47 on the surface of the cabinet 10, and a group of support seats 46 are fixedly connected to the moving end above each linear drive rail 45.

[0051] By providing the support seat 46 and the roller seat 47, the feeding system of the previous processing process of the crystal rod can be connected, the crystal rod can be translated as a whole to the support roller 48, and then the support roller 48 can lift the crystal rod to the corresponding position of the clamp 15, so that the clamp 15 can clamp the crystal rod conveniently. In addition, during the grinding process of the crystal rod, the support roller 48 can support the bottom side of the crystal rod to provide additional supporting force, ensure the force balance on the crystal rod, and avoid the crystal rod being subjected to the pressure of the grinding device and uneven force, which may cause defects such as cracks in the crystal rod.

[0052] In this embodiment, initially, the operator connects the power supply and the control system when processing the device. At this time, the support roller 48 is at the lowest position, and the support seat 46 is located on the outside. The first electric push cylinder 34 is in a retracted state. At this time, the distance between the jaws 15 in the same group is the largest. A conveying device is arranged on the side close to the support seat 46, and a grinding roller of a grinding and polishing device is arranged above the device.

[0053] During operation, the conveying device delivers the crystal rod to be processed onto two sets of support seats 46, which support the crystal rod, and then drives the linear drive track 45, so that the support seat 46 drives the crystal rod to move to the corresponding position of the support roller 48, and then the support roller 48 is lifted, supporting the lower side of the crystal rod and lifting the crystal rod upward until the crystal rod is separated from the support seat 46 and moves to a coaxial position with the turntable 13, and then the support seat 46 is reset.

[0054] Then, the second motor 42 and the first electric push cylinder 34 are synchronously driven and controlled. The second motor 42 drives the lead screw 41 to rotate and then drives the lead screw slider 39 to make the movable panel 11 slide and adjust its position in the straight direction of the slide rail 43, while the first electric push cylinder 34 extends outward to push the top plate 23 and squeeze the push connecting rod 18. Since the end of the connecting rod 18 is slidably connected to the slider 14, the slider 14 tilts and slides along the direction of the slide groove 16 while pushing the connecting rod 18, so that the distance between the jaws 15 in the same group gradually decreases until the L-shaped jaws 15 clamp the circular edge of the crystal rod and press against the two end surfaces of the crystal rod. Since the distance between the two movable panels 11 and the distance between the jaws 15 in the same group are adjustable, the crystal rods of different lengths and diameters can be stably clamped.

[0055] After the clamping work is completed, the support roller 48 still supports the bottom side of the crystal rod. At this time, the connecting rod 18 located at the slope of the convex ring 20 retracts due to the contact between the paddle 19 and the slope of the convex ring 20, and the clamping claw 15 corresponding to the connecting rod 18 is separated from the surface of the crystal rod and avoids the grinding position, and the end of the connecting rod 18 away from the clamping claw 15 extends from the notch 25 without being subjected to the thrust of the top plate 23.

[0056] Then, the first motor 33 is started to rotate the transmission drive gear 30 through the reduction box 32, and the transmission plate 27 is driven to rotate by the meshing transmission of the gear 30 and the gear ring 29. The transmission plate 27 drives the turntable 13 to rotate synchronously through the telescopic connecting sleeve 37, so that the clamping claws 15 clamp the crystal rod and drive the crystal rod to rotate. At the same time, all the connecting rods 18 rotate together, but the convex ring 20 and the top plate 23 remain in position, so that the steel ball 22 at the end of the connecting rod 18 rolls in a circular direction on the surface of the steel ball groove 24, and each paddle 19 slides on the surface of the convex ring 20. At this time, the grinding device grinds and polishes the surface of the crystal rod.

[0057] As the connecting rod 18 rotates, the paddle 19 located on the slope of the convex ring 20 moves out of the range of the slope of the convex ring 20, and the corresponding spring 28 releases its elasticity to push the connecting rod 18 to re-extend, so that the corresponding clamping claw 15 contacts and clamps the crystal rod again, and the steel ball 22 contacts and rolls with the steel ball groove 24 again through the bevel 26, and the subsequent paddle 19 slides along the slope of the convex ring 20, and the steel ball 22 enters the range of the notch 25 and detaches from the surface of the steel ball groove 24, and the corresponding paddle 19 compresses the spring 28 to pull the clamping claw 15 off the surface of the crystal rod. This cycle ensures that during the rotation process, except for the clamping claw 15 moved to the corresponding position of the slope of the convex ring 20 that detaches from the crystal rod, the remaining clamping claws 15 stably clamp the crystal rod and drive the crystal rod to rotate, thereby ensuring that there is no clamping claw 15 above the crystal rod to block the grinding device, thereby ensuring that the crystal rod can be fully and efficiently ground.

[0058] During the grinding process, the support roller 48 always supports the bottom side of the crystal rod, so that the bottom of the crystal rod is supported by its support force during grinding to keep the force balance of the crystal rod, thereby avoiding defects such as cracks in the brittle crystal rod during the grinding process.

[0059] After the grinding process is completed, the first motor 33 is turned off and no longer drives the crystal rod to rotate. The linear drive track 45 drives the support seat 46 to move to the bottom of the crystal rod again. The first electric push cylinder 34 retracts so that the connecting rod 18 is pulled by the spring 28 and moves horizontally in the direction close to the second bracket 35. Then the distance between the clamping jaws 15 increases again, and the two movable panels 11 are controlled to move away from each other, thereby completely releasing the clamping of the crystal rod. Then the support rollers 48 carry the crystal rod and move downward until the crystal rod falls into the two sets of support seats 46 and the support rollers 48 are completely separated from the crystal rod. Then, the support seat 46 moves the polished crystal rod as a whole horizontally and out of the processing area, so as to facilitate the transfer of the crystal rod to the subsequent processing area.

[0060] The above-mentioned first motor 33, first electric push cylinder 34, second motor 42, linear drive rail 45, and second electric push cylinder 50 are mature existing technologies. The structures in the drawings are only for illustration and will not be described in detail herein.

[0061] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect.

[0062] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such product or system. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the product or system including the elements.

[0063] The above description shows and describes several preferred embodiments of the present application, but as mentioned above, it should be understood that the present application is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the application concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the present application, and should be within the scope of protection of the claims attached to the present application.

Claims

1. A lifting, centering and clamping device for conveying silicon rods in a crystalline silicon rod grinder, characterized in that: The lifting, centering and clamping device for conveying silicon rods on the crystalline silicon rod grinder comprises: A cabinet (10), wherein two movable panels (11) are symmetrically arranged on the upper side of the cabinet (10) and slide in opposite directions, and two ends of the upper sides of the two movable panels (11) close to each other are fixedly connected with a first bracket (12), a rotating disk (13) is rotatably connected in each of the first brackets (12), and a plurality of sliders (14) are evenly distributed and slidably connected in a circumferential direction in each of the rotating disks (13), and a clamping claw (15) is fixedly connected to the end of each of the sliders (14); Slide grooves (16), each of the rotating disks (13) is provided with a group of slide grooves (16) at both sides of each slider (14), each group of the slide grooves (16) is inclined, and a slide pin (17) is slidably connected in each group of the slide grooves (16); Each of the sliding pins (17) is fixedly connected to the corresponding slider (14), each of the clamping jaws (15) is L-shaped, each group of the clamping jaws (15) is used to clamp the end and end edge of the crystal rod, and a lifting component is arranged in the cabinet (10).

2. The lifting, centering and clamping device for conveying silicon rods by a crystalline silicon rod grinder according to claim 1 is characterized in that: One end of each slider (14) away from the clamp (15) is slidably connected to a connecting rod (18); two ends of the two movable panels (11) away from each other are respectively fixedly connected to a second bracket (35); one side of each second bracket (35) away from the first bracket (12) is fixedly connected to a first electric push cylinder (34); an extended end of each first electric push cylinder (34) passes through the second bracket (35) and is fixedly connected to a top plate (23); each top plate (23) can abut against the end of the corresponding connecting rod (18); and a fan-shaped bevel (26) is provided at the top of each top plate (23).

3. The lifting, centering and clamping device for conveying silicon rods by a crystalline silicon rod grinder according to claim 2 is characterized in that: The end of each connecting rod (18) away from the slider (14) is fixedly connected with a steel ball head (21), and a steel ball (22) is rolled inside each steel ball head (21). A steel ball groove (24) is provided on the surface of each top plate (23) at the rolling area of ​​the steel ball (22), and each steel ball groove (24) is provided with an oblique opening (26) at the edge of the notch (25).

4. The lifting, centering and clamping device for conveying silicon rods by a crystalline silicon rod grinder according to claim 3 is characterized in that: A transmission disc (27) is rotatably connected to a side of each top plate (23) close to the turntable (13), each transmission disc (27) is slidably connected to a corresponding connecting rod (18), a gear ring (29) is fixedly connected to the outer side of each transmission disc (27), a gear seat (31) is fixedly connected to each movable panel (11), a gear (30) is rotatably connected between each gear seat (31) and a corresponding second bracket (35), each gear (30) is slidably and meshingly connected to a corresponding gear ring (29), a reduction gear box (32) is fixedly connected to a side of each second bracket (35) away from the turntable (13), a power output end of each reduction gear box (32) is transmission-connected to a corresponding gear (30), and a power input end of each reduction gear box (32) away from the second bracket (35) is transmission-connected to a first motor (33).

5. The lifting, centering and clamping device for conveying silicon rods by a crystalline silicon rod grinder according to claim 4, characterized in that: A convex ring (20) surrounding the outer side of the connecting rod (18) is arranged between each of the first brackets (12) and the corresponding transmission disk (27); a connecting plate (36) is fixedly connected between each of the convex rings (20) and the corresponding top plate (23); a slope is arranged at a position corresponding to the notch (25) on the side of each of the convex rings (20) away from the rotating disk (13); a paddle (19) capable of sliding on the slope of the convex ring (20) is fixedly connected to the outer side of each of the connecting rods (18); and a spring (28) surrounding the outer side of the connecting rod (18) is connected between each of the paddles (19) and the corresponding transmission disk (27).

6. The lifting, centering and clamping device for conveying silicon rods by a crystalline silicon rod grinder according to claim 5, characterized in that: A group of telescopic connecting sleeves (37) are fixedly connected at the axis between each transmission disk (27) and the corresponding rotating disk (13), and each group of telescopic connecting sleeves (37) can freely telescope and slide. A group of sliding rods (38) are fixedly connected between each second bracket (35) and the corresponding first bracket (12), and each group of sliding rods (38) is slidably connected to the corresponding top plate (23) and the convex ring (20).

7. The lifting, centering and clamping device for conveying silicon rods by a crystalline silicon rod grinder according to claim 1, characterized in that: The cabinet (10) has slide rails (43) symmetrically distributed and fixedly connected on both sides of each movable panel (11) on its surface, each of the slide rails (43) being slidably connected to a group of slide seats (44), and each group of the slide seats (44) being fixedly connected to the bottom side of the corresponding movable panel (11).

8. The lifting, centering and clamping device for conveying silicon rods by a crystalline silicon rod grinder according to claim 7, characterized in that: A group of screw seats (40) are fixedly connected to the surface of the cabinet (10) below each movable panel (11) in the moving direction of the movable panel (11); screws (41) are rotatably connected between each group of screw seats (40); a second motor (42) is fixedly connected to the end of each group of screw seats (40); and a power output end of each second motor (42) is drivingly connected to the screw (41).

9. The lifting, centering and clamping device for conveying silicon rods by a crystalline silicon rod grinder according to claim 1, characterized in that: The lifting component includes a roller seat (47), and two roller seats (47) are symmetrically distributed in the middle of the cabinet (10), and each of the roller seats (47) is rotatably connected to a support roller (48). A third bracket (49) is fixedly connected below the two roller seats (47) in the cabinet (10), and a second electric push cylinder (50) is fixedly connected to the third bracket (49) below each roller seat (47), and an extended end of each of the second electric push cylinders (50) passes through the third bracket (49) and is fixedly connected to the corresponding roller seat (47).

10. The lifting, centering and clamping device for conveying silicon rods by a crystalline silicon rod grinder according to claim 9, characterized in that: The surface of the cabinet (10) is symmetrically distributed and fixedly connected with linear drive rails (45) at both ends of the roller seats (47), and a group of support seats (46) are fixedly connected to the moving end above each linear drive rail (45).

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