A crystal roller grinding equipment

Abstract

This utility model relates to the field of crystal processing technology and discloses a crystal roller grinding device. A grinding assembly is mounted on a bracket at the upper center of the base. A front support roller assembly and a rear support roller assembly are slidably connected in a groove at the upper end of the base, with the upper ends of the front and rear support roller assemblies used to place the crystal. The crystal height is adjusted by regulating the distance between the front and rear support roller assemblies, ensuring the crystal is tightly against the bottom of the grinding assembly, thus achieving roller grinding of the crystal. This utility model synchronously adjusts the distance between the front and rear support rollers, achieving real-time dynamic compensation of the crystal height and ensuring the crystal is always in close contact with the grinding disc. No machine stoppage is required for adjustment, improving continuous processing efficiency. The clamping assembly is linked to the support roller assembly, adaptively rising and falling along the vertical groove as the distance between the front and rear support rollers changes, ensuring the clamping disc is always aligned with both ends of the crystal.

Description

Technical Field

[0001] This utility model relates to the field of crystal processing technology, specifically to a crystal roller grinding equipment. Background Technology

[0002] In the processing of crystal materials (such as optical crystals and semiconductor crystals), the rounding of cylindrical crystals is a crucial process to ensure the accuracy of subsequent applications. Existing crystal rounding equipment suffers from the following technical deficiencies in practical use: Poor coordination between crystal height adjustment and grinding: In traditional equipment, crystals are usually placed on support rollers with a fixed spacing. During the grinding process, the crystal diameter gradually decreases, which can cause the crystal to lose contact with the grinding disc. The machine needs to be stopped and the support height manually adjusted, which not only interrupts the processing flow and reduces production efficiency, but may also cause uneven grinding of the crystal surface due to human operation error.

[0003] The clamping components lack adaptability: Existing clamping structures are mostly designed with a fixed position, which cannot be adjusted synchronously with changes in crystal height; if the clamping position is too high, the clamping will loosen due to the decrease in crystal diameter, affecting the grinding stability; if the clamping position is too low, it may interfere with the support roller or base, and rigid clamping is prone to causing the edges of brittle crystals (such as sapphire and quartz) to crack, resulting in a high scrap rate. To address this, we have introduced a crystal roller rounding grinding equipment. Utility Model Content

[0004] The purpose of this invention is to provide a crystal roller grinding equipment to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A crystal roller grinding device includes a base, a grinding assembly is mounted on the upper middle part of the base by a bracket, and a front support roller assembly and a rear support roller assembly are slidably connected in the sliding groove at the upper end of the base, with the upper ends of the front support roller assembly and the rear support roller assembly used to place crystals. The height of the crystal can be adjusted by adjusting the distance between the front support roller assembly and the rear support roller assembly, so that the crystal is close to the bottom of the grinding assembly, and the grinding assembly can perform the rounding grinding operation on the crystal. A clamping assembly is connected between the sides of the front support roller assembly and the rear support roller assembly. The position of the clamping assembly moves with the height of the crystal to ensure that the clamping assembly is always clamped and fixed at both ends of the crystal.

[0006] Preferably, the grinding assembly includes a first servo motor fixed to the top of the bracket and a grinding disc movably connected to the top wall of the bracket by a convex plate; The first servo motor output end is provided with a first pulley, the grinding disc is provided with a second pulley in the middle, and a belt connects the first pulley and the second pulley.

[0007] Preferably, the front support roller assembly includes a front movable seat that slides into the slide groove, a front support roller that is movably connected to the upper part of the front movable seat, and a front rack that is fixed to the side of the front reserved groove at the bottom of the front movable seat. The rear support roller assembly includes a rear movable seat that slides into the slide groove, a rear support roller that is movably connected to the upper part of the rear movable seat, and a rear rack that is fixed to the side of the rear reserved groove at the bottom of the rear movable seat.

[0008] Preferably, a gear is movably connected to the middle of the slide groove via a vertical shaft, and a second servo motor is fixed in the reserved slot at the bottom of the base. The output end of the second servo motor is fixedly connected to the bottom of the vertical shaft, and the gear meshes between the front rack and the rear rack. The two side walls of the slide are also provided with limiting blocks located between the front moving seat and the rear moving seat.

[0009] Preferably, the front movable seat has front connecting shafts on both sides, and the rear movable seat has rear connecting shafts on both sides. The clamping assembly includes a front connecting arm sleeved on the front connecting shaft, a rear connecting arm sleeved on the rear connecting shaft, an H-shaped lifting seat slidingly connected to the side wall of the bracket, a screw threaded in the middle of the H-shaped lifting seat, and a clamping component connected to the inner end of the screw thread. The tops of the front connecting arm and the rear connecting arm are sleeved on the screw.

[0010] Preferably, the side wall of the bracket is provided with a vertical groove for sliding the H-shaped lifting seat.

[0011] Preferably, the clamping component includes a connecting disc fixed to the inner end of the screw, a connecting cylinder connected by four sets of through-through smooth rods on the connecting disc, a rotating column rotatably connected inside the connecting cylinder, and a clamping disc fixed to the inner end of the rotating column.

[0012] Preferably, a spring is centrally connected between the connecting disc and the connecting cylinder, and a bearing is provided inside the connecting cylinder and sleeved on the outside of the rotating column.

[0013] Compared with the prior art, the beneficial effects of this utility model are: This invention enables synchronous adjustment of the spacing between the front and rear support rollers, achieving real-time dynamic compensation for crystal height and ensuring that the crystal remains in close contact with the grinding disc. No machine stoppage is required for adjustment, improving continuous processing efficiency. The clamping assembly is linked to the support roller assembly, adaptively rising and falling along the vertical groove as the spacing between the front and rear support rollers changes, ensuring the clamping disc is always aligned with both ends of the crystal. This improves clamping adaptability, reduces crystal scrap rate, and simplifies the operation process by eliminating the need for repeated manual adjustments to the clamping position. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the crystal initial roller rounding operation of this utility model; Figure 2 This is a three-dimensional structural diagram of the roller grinding operation during crystal height lifting in this utility model; Figure 3 This is an exploded structural diagram of the assembly of the base, front support roller assembly and rear support roller assembly of this utility model; Figure 4 This is an exploded structural diagram of the front support roller assembly, the rear support roller assembly, and the gear assembly of this utility model; Figure 5 This is a schematic diagram of the structure of the front support roller assembly and the rear support roller assembly of this utility model when they are close to each other; Figure 6 This is a schematic diagram of the structure of the front support roller assembly and the rear support roller assembly of this utility model when they are far apart; Figure 7 This is an exploded structural diagram of the clamping assembly of this utility model; Figure 8 This is a cross-sectional structural diagram of the assembly of the smooth rod, connecting plate, connecting cylinder and clamping plate of this utility model.

[0015] In the diagram: 1. First servo motor; 2. Belt; 3. Grinding disc; 4. Protruding plate; 5. Bracket; 6. Crystal; 7. Rear support roller; 8. Base; 9. Vertical groove; 10. Rear connecting shaft; 11. Limiting block; 12. Slide groove; 13. Clamping assembly; 1301. Front connecting arm; 1302. Screw; 1303. Rear connecting arm; 1304. H-shaped lifting seat; 1305. Connecting plate; 1306. Connecting cylinder; 1307. Smooth rod; 1308. Clamping plate; 1309. Spring; 1310. Rotating column; 1311. Bearing; 14. Front support roller; 15. Front moving seat; 16. Rear moving seat; 17. Reserved slot; 18. Gear; 19. Front connecting shaft; 20. Front reserved slot; 21. Front rack; 22. Vertical shaft; 23. Rear rack; 24. Rear reserved slot. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Example: Please see Figure 1-8 This utility model provides a technical solution: A crystal roller grinding device includes a base 8, and a grinding component is mounted on the upper middle part of the base 8 by a bracket 5. The grinding assembly includes a first servo motor 1 fixed to the top of the bracket 5 and a grinding disc 3 movably connected to the top wall of the bracket 5 by a convex plate 4; the first servo motor 1 is controlled by a PLC.

[0018] The convex plate 4 is provided with two sets symmetrically arranged on the left and right, and a horizontal shaft is movably connected between the two sets of convex plates 4. The grinding disc 3 is provided with two sets and is symmetrically fixed at both ends of the horizontal shaft. The first servo motor 1 has a first pulley at its output end, and the grinding disc 3 has a second pulley in the middle. The second pulley is fixed in the middle of the horizontal shaft. A belt 2 is connected between the first pulley and the second pulley, and the bracket 5 has an clearance groove at its top for the belt 2 to pass through.

[0019] The front support roller assembly and the rear support roller assembly are slidably connected in the sliding groove 12 at the upper end of the base 8. The upper ends of the front support roller assembly and the rear support roller assembly are used to place the crystal 6. The front support roller assembly includes a front movable seat 15 that slides into the slide groove 12, a front support roller 14 that is movably connected to the upper part of the front movable seat 15, and a front rack 21 that is fixed to the side of the front reserved groove 20 at the bottom of the front movable seat 15. The rear support roller assembly includes a rear movable seat 16 that slides into the slide groove 12, a rear support roller 7 that is movably connected to the upper part of the rear movable seat 16, and a rear rack 23 that is fixed to the side of the rear reserved groove 24 at the bottom of the rear movable seat 16.

[0020] Crystal 6 is cylindrical and placed between the upper ends of the front support roller 14 and the rear support roller 7.

[0021] A gear 18 is movably connected to the middle of the slide 12 via a vertical shaft 22. A second servo motor is fixed in the reserved slot 17 at the bottom of the base 8. The output end of the second servo motor is fixedly connected to the bottom of the vertical shaft 22. The gear 18 meshes between the front rack 21 and the rear rack 23. The second servo motor is controlled by a PLC. The second servo motor drives the gear 18 to rotate through the vertical shaft 22, so that the gear 18 synchronously drives the front rack 21 and the rear rack 23, thereby realizing the adjustment of the distance between the front moving seat 15 and the rear moving seat 16. The two side walls of the slide 12 are also provided with limiting blocks 11 located between the front moving seat 15 and the rear moving seat 16.

[0022] Limit protection: Limit blocks 11 on both sides of the slide 12 prevent the front support roller 14 and the rear support roller 7 from getting too close to each other and avoid damage to the components. That is, when the distance between the front moving seat 15 and the rear moving seat 16 is the smallest, the limit blocks 11 block between the front moving seat 15 and the rear moving seat 16 to prevent the front support roller 14 and the rear support roller 7 from contacting each other.

[0023] The height of crystal 6 can be adjusted by adjusting the distance between the front support roller assembly and the rear support roller assembly, so that crystal 6 is in close contact with the bottom of the grinding assembly, and the grinding assembly can perform the rounding operation on crystal 6. As the grinding disc 3 continuously performs roller grinding on the surface of the crystal 6, the diameter of the crystal 6 gradually decreases. At this time, the distance between the front support roller assembly and the rear support roller assembly gradually decreases, causing the height of the crystal 6 to gradually increase, so that the crystal 6 is always in contact with the bottom of the grinding disc 3.

[0024] A clamping assembly 13 is connected between the sides of the front support roller assembly and the rear support roller assembly. The position of the clamping assembly 13 moves with the height of the crystal 6 to ensure that the clamping assembly 13 is always clamped and fixed at both ends of the crystal 6.

[0025] The front movable seat 15 is provided with front connecting shafts 19 on both sides, and the rear movable seat 16 is provided with rear connecting shafts 10 on both sides. The clamping assembly 13 includes a front connecting arm 1301 sleeved on the front connecting shaft 19, a rear connecting arm 1303 sleeved on the rear connecting shaft 10, an H-shaped lifting seat 1304 slidably connected to the side wall of the bracket 5, a screw 1302 screwed to the middle of the H-shaped lifting seat 1304, and a clamping member connected to the inner end of the screw 1302. The front connecting arm 1301 and the rear connecting arm 1303 are sleeved on the screw 1302.

[0026] The side wall of the bracket 5 is provided with a vertical groove 9 for sliding the H-shaped lifting seat 1304.

[0027] The clamping components include a connecting plate 1305 fixed to the inner end of the screw 1302, a connecting cylinder 1306 connected by four sets of through-through smooth rods 1307 on the connecting plate 1305, a rotating column 1310 rotatably connected inside the connecting cylinder 1306, and a clamping plate 1308 fixed to the inner end of the rotating column 1310.

[0028] A spring 1309 is centrally connected between the connecting plate 1305 and the connecting cylinder 1306. The connecting cylinder 1306 has a bearing 1311 sleeved on the outside of the rotating column 1310.

[0029] By adjusting the left and right sets of screws 1302, the left and right sets of clamping parts can clamp the two ends of the crystal 6 while also adjusting the left and right position of the crystal 6, so that the grinding disc 3 can grind any position on the surface of the crystal 6.

[0030] Specifically, when using it: Support and height pre-adjustment of crystal 6: The spacing adjustment of the support roller assembly: The second servo motor (controlled by PLC) drives the vertical shaft 22 to rotate the gear 18. The gear 18 simultaneously meshes the front rack 21 and the rear rack 23, so that the front moving seat 15 and the rear moving seat 16 move closer or further away from each other along the slide groove 12.

[0031] When the distance between the two decreases, the height of the cylindrical crystal 6 placed on the front support roller 14 and the rear support roller 7 increases; when the distance increases, the height of the crystal 6 decreases. By adjusting the distance, the top of the crystal 6 is made to fit tightly against the bottom of the grinding disc 3, laying the foundation for the rounding operation.

[0032] Crystal 6 is fixed by clamping at both ends: Adaptive positioning of the clamping assembly: The clamping assembly 13 is connected to the front connecting shaft 19 and the rear connecting shaft 10 through the front connecting arm 1301 and the rear connecting arm 1303 respectively, and its position is adjusted synchronously with the change of the distance between the front moving seat 15 and the rear moving seat 16.

[0033] As the distance between the front moving seat 15 and the rear moving seat 16 changes, the front connecting arm 1301 and the rear connecting arm 1303 push the H-shaped lifting seat 1304 up and down along the vertical groove 9 of the bracket 5 through the screw 1302, so that the clamping plate 1308 is aligned with both ends of the crystal 6, ensuring that the clamping plate 1308 is always aligned with both ends of the crystal 6, without the need for repeated manual adjustments, and adapting to crystals 6 of different lengths; The spring 1309 between the connecting plate 1305 and the connecting cylinder 1306 provides buffer pressure to ensure that the clamping plate 1308 fits tightly against the end face of the crystal 6, while avoiding rigid clamping that could cause damage to the crystal 6. The rotating column 1310 is rotatably connected to the connecting cylinder 1306 via the bearing 1311, ensuring that the crystal 6 can rotate freely with the support roller during the grinding process and is not jammed by the clamping assembly.

[0034] The grinding operation of the roller on grinding disc 3: Power transmission of the grinding disc 3: The first servo motor 1 (controlled by PLC) drives the horizontal shaft to rotate through the first pulley, belt 2 and the second pulley, which in turn drives the two sets of symmetrical grinding discs 3 to rotate at high speed.

[0035] Dynamic height compensation and continuous grinding: During the grinding process, the surface of crystal 6 is gradually ground and the diameter is reduced. At this time, the PLC controls the second servo motor to drive the gear 18 to rotate, so that the distance between the front moving seat 15 and the rear moving seat 16 is reduced synchronously. The height of crystal 6 increases as the diameter decreases, and it always stays close to the bottom of the grinding disc 3, ensuring that the grinding disc 3 grinds the surface of crystal 6 evenly around the entire circumference. Two sets of grinding discs 3 are symmetrically distributed and act on both sides of the crystal 6 simultaneously. Together with the rotation of the crystal 6 itself, they achieve high-precision rolling of the cylindrical surface (roundness error ≤ 0.01mm).

[0036] Work completion and reset: After grinding to the preset size, stop the first servo motor 1, rotate the screw 1302 in the opposite direction to loosen the clamping plate 1308, adjust the distance between the front support roller 14 and the rear support roller 7 to increase, take out the processed crystal 6, and reset the equipment to wait for the next operation.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A crystalline roll round grinding machine comprising a base, characterised in that: The upper middle part of the base is equipped with a grinding component by a bracket. The front support roller assembly and the rear support roller assembly are slidably connected in the sliding groove at the upper end of the base. The upper ends of the front support roller assembly and the rear support roller assembly are used to place the crystal. The height of the crystal can be adjusted by adjusting the distance between the front support roller assembly and the rear support roller assembly, so that the crystal is close to the bottom of the grinding assembly, and the grinding assembly can perform the rounding grinding operation on the crystal. A clamping assembly is connected between the sides of the front support roller assembly and the rear support roller assembly. The position of the clamping assembly moves with the height of the crystal to ensure that the clamping assembly is always clamped and fixed at both ends of the crystal.

2. A crystalline roll mill round rod apparatus as defined in claim 1, wherein: The grinding assembly includes a first servo motor fixed to the top of the bracket and a grinding disc movably connected to the top wall of the bracket by a convex plate. The first servo motor output end is provided with a first pulley, the grinding disc is provided with a second pulley in the middle, and a belt connects the first pulley and the second pulley.

3. A crystalline roll mill round rod apparatus as defined in claim 1, wherein: The front support roller assembly includes a front movable seat that slides into the slide groove, a front support roller that is movably connected to the upper part of the front movable seat, and a front rack that is fixed to the side of the front reserved groove at the bottom of the front movable seat. The rear support roller assembly includes a rear movable seat that slides into the slide groove, a rear support roller that is movably connected to the upper part of the rear movable seat, and a rear rack that is fixed to the side of the rear reserved groove at the bottom of the rear movable seat.

4. A crystal roller mill roundness apparatus as defined in claim 3, wherein: The middle part of the slide is connected to a gear by a vertical shaft. A second servo motor is fixed in the reserved slot at the bottom of the base. The output end of the second servo motor is fixedly connected to the bottom of the vertical shaft. The gear meshes between the front rack and the rear rack. The two side walls of the slide are also provided with limiting blocks located between the front moving seat and the rear moving seat.

5. A crystalline roll mill round rod apparatus as defined in claim 3, wherein: The front movable seat has front connecting shafts on both sides, and the rear movable seat has rear connecting shafts on both sides. The clamping assembly includes a front connecting arm sleeved on the front connecting shaft, a rear connecting arm sleeved on the rear connecting shaft, an H-shaped lifting seat slidingly connected to the side wall of the bracket, a screw threaded in the middle of the H-shaped lifting seat, and a clamping component connected to the inner end of the screw thread. The tops of the front connecting arm and the rear connecting arm are sleeved on the screw.

6. A crystal roller mill roundness apparatus as defined in claim 5, wherein: The side wall of the bracket is provided with a vertical groove for sliding the H-shaped lifting seat.

7. A crystalline roll mill round rod apparatus as defined in claim 5, wherein: The clamping component includes a connecting plate fixed to the inner end of the screw, a connecting cylinder connected by four sets of through-through smooth rods on the connecting plate, a rotating column rotatably connected inside the connecting cylinder, and a clamping plate fixed to the inner end of the rotating column.

8. A crystalline roll mill round rod apparatus as defined in claim 7, wherein: A spring is centrally connected between the connecting disc and the connecting cylinder, and a bearing is provided inside the connecting cylinder and sleeved on the outside of the rotating column.

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