A device for clamping a sapphire crystal rod during end face grinding

Abstract

The utility model discloses a sapphire crystal bar end face flat grinding clamping device belongs to crystal bar polishing technical field, and the clamping cylinder in the bottom of the material taking disc is equipped with the clamping mechanism of the circumferential distribution, and the clamping plate is connected with the connecting piece through the connecting rod, realizes the synchronous clamping and release crystal bar of multiple clamping plates, and the rubber material of clamping plate inboard can increase friction according to the surface deformation of crystal bar. Meanwhile, the suction cup in the groove in the clamping cylinder can move up and down under the driving of the oil cylinder, and the suction force is generated by using the cooperation of the air extraction pipe and the external air extraction device, which assists the clamping plate to fix the crystal bar. The feeding line, the discharging line and the material taking disc cooperate, realizing the automatic feeding and discharging of the crystal bar. The clamping device stably clamps, guarantees the synchronous action of multiple clamping plates, makes the crystal bar uniform stress, the auxiliary fixing function enhances the fixing effect to the special crystal bar, and improves the processing stability.

Description

Technical Field

[0001] This utility model relates to the field of crystal rod polishing technology, specifically to a sapphire crystal rod end face flat grinding clamping device. Background Technology

[0002] In the surface grinding process of sapphire ingots, securing the ingot is crucial. Traditional clamping devices struggle to ensure synchronized operation of multiple clamping components, leading to uneven clamping force and increasing the risk of ingot damage or displacement during processing. For ingots with smooth surfaces or unique shapes, conventional clamping methods lack sufficient reliability, and the ingot is prone to displacement due to vibration and other factors during processing. Furthermore, previous processing procedures relied heavily on manual operation for loading and unloading, resulting in low efficiency and difficulty in ensuring the orderly flow of ingots. Therefore, there is an urgent need for a clamping device that can stably and reliably clamp ingots and automate loading and unloading to meet the high precision and efficiency requirements of sapphire ingot surface grinding. Utility Model Content

[0003] To address the aforementioned technical deficiencies, the purpose of this utility model is to provide a sapphire crystal rod end face flat grinding clamping device, which can realize automatic clamping and release.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention provides a sapphire crystal rod end face flat grinding clamping device, comprising:

[0005] A material feeding tray, which can rotate freely;

[0006] A clamping cylinder is installed at the bottom of the material handling tray. The inside of the clamping cylinder is provided with an inner groove, in which multiple clamping mechanisms arranged circumferentially are installed.

[0007] The clamping mechanism includes multiple circumferentially distributed clamping plates, which are parallel to each other and can perform clamping and releasing actions simultaneously.

[0008] Preferably, the clamping mechanism includes a connector fixed to the inner wall of the inner groove, and the clamping plate and the connector are connected by multiple connecting rods, with the two ends of the connecting rods respectively hinged to the connector and the clamping plate.

[0009] Preferably, the clamping plate and the corresponding connecting piece are parallel to each other, and the lengths of the plurality of connecting rods are all equal and parallel to each other.

[0010] Preferably, a suction cup capable of moving up and down is installed in the inner groove of the clamping cylinder, and the suction cup can generate an adsorption force on the end of the crystal rod.

[0011] Preferably, the suction cup is disposed in the middle of multiple clamping plates, and a telescopic rod is connected between the suction cup and each of the multiple clamping plates.

[0012] Preferably, a hydraulic cylinder is fixed inside the clamping cylinder, and the output end of the hydraulic cylinder is connected to the suction cup.

[0013] Preferably, the suction cup is connected to an air extraction pipe, one end of which is connected to the interior of the suction cup, and the other end is connected to an external air extraction device.

[0014] Preferably, a spring is installed inside the telescopic rod, and the spring applies an outward stretching force to the telescopic rod.

[0015] Preferably, the inner clamping position of the clamping plate is made of rubber.

[0016] Preferably, it also includes an infeed line and an outfeed line, the feeding tray is provided with an infeed position and an outfeed position, and the infeed line and the outfeed line extend to the infeed position and the outfeed position, respectively.

[0017] The beneficial effects of this utility model are as follows:

[0018] The clamping mechanism connects the clamping plates and the connecting parts via a linkage, ensuring that multiple clamping plates can perform clamping and releasing operations synchronously and reliably, thus improving the stability of the clamping device. The rubber clamping surface on the inner side of the clamping plate can deform according to the shape of the crystal rod surface and increase the friction, so that the crystal rod is subjected to uniform force when being clamped.

[0019] The suction cup, in conjunction with the clamping plate, increases the reliability of fixation, especially for crystal rods with smooth surfaces or special shapes, preventing displacement of the crystal rod due to vibration during processing and improving the stability of the processing. The hydraulic cylinder provides stable and controllable power for the up-and-down movement of the suction cup, precisely controlling its position. The air extraction pipe, in conjunction with an external ventilation device, provides the suction force for the suction cup. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 for Figure 1 Enlarged view of point A in the image.

[0022] Figure 3 This is a bottom view of the clamping cylinder of this utility model.

[0023] Figure 4 This is an internal view of the suction cup and telescopic rod.

[0024] Figure 5 This is a connection diagram of the base and the connecting shaft.

[0025] Figure 6This is a top view of the material handling tray, feed line, and discharge line.

[0026] In the diagram: 1. Feeding tray, 2. Feeding line, 3. Discharge line, 4. Coupling shaft, 5. Clamping cylinder, 6. Air extraction pipe, 7. Clamping plate, 8. Connecting rod, 9. Connecting piece, 10. Telescopic rod, 11. Spring, 12. Connecting column, 13. Suction cup, 14. Motor. Detailed Implementation

[0027] The present invention is illustrated below with specific embodiments, but these are not intended to limit the scope of the invention.

[0028] Example 1

[0029] like Figures 1-6 As shown in the figure, in this embodiment, a sapphire crystal rod end face flat grinding and clamping device is provided, including a material taking plate 1 and a clamping cylinder 5.

[0030] The material pick-up tray 1 can rotate freely, which is convenient for switching between different process positions. The material pick-up tray 1 is rotatably mounted on the base through the connecting column 12. The base is equipped with a motor 14 for driving the connecting shaft 4 to rotate. The connecting shaft 4 is fixed to the material pick-up tray 1.

[0031] The clamping cylinder 5 is installed at the bottom of the material handling plate 1. The inside of the clamping cylinder 5 is provided with an inner groove, in which multiple clamping mechanisms are circumferentially arranged.

[0032] The clamping mechanism includes multiple circumferentially distributed clamping plates, all parallel to each other. These plates can simultaneously perform clamping and releasing actions. When clamping the sapphire ingot, the clamping plates move closer to and hold it tightly; when releasing, they move away from the ingot, effectively holding it to meet the requirements for ingot fixation during end-face grinding. The freely rotating pick-up tray 1 facilitates the transfer of the ingot during the processing. The inner clamping position of the clamping plate 7 is made of rubber. When the clamping plate 7 clamps the ingot, the rubber clamping surface contacts the ingot surface. Rubber has a certain degree of elasticity and friction. When clamping the ingot, the rubber clamping surface can deform to a certain extent according to the shape of the ingot surface, better conforming to the ingot surface and increasing the friction during clamping.

[0033] The clamping mechanism includes a connector 9 fixed to the inner wall of the inner groove. The clamping plate and the connector 9 are connected by multiple connecting rods 8. The two ends of the connecting rods 8 are hinged to the connector 9 and the clamping plate 7, respectively. When the clamping mechanism operates, the hinge structure of the connecting rods 8 allows the clamping plate to adjust its angle relative to the connector 9, thereby achieving clamping and releasing actions. When the clamping plate is pushed, the connecting rods 8 drive the clamping plate to rotate around the hinge point with the connector 9, achieving the clamping action. Reverse movement achieves release. This connection method of the connecting rods 8 provides a stable transmission structure for the movement of the clamping plate, ensuring that multiple clamping plates can perform clamping and releasing operations synchronously and reliably, thus improving the stability of the clamping device.

[0034] The clamping plate 7 and the corresponding connecting piece 9 are parallel to each other. The lengths of the multiple connecting rods 8 are all equal and parallel to each other. During the operation of the clamping mechanism, since the lengths of the connecting rods 8 are equal and parallel, when one clamping plate moves, the other clamping plates will move with the same trajectory and speed through the transmission of the connecting rod 8. This ensures the consistency of the actions of the multiple clamping plates and further ensures the accuracy of the synchronous action of the multiple clamping plates. This allows the crystal ingot to be evenly stressed when it is clamped, avoiding damage to the crystal ingot or displacement during the processing due to uneven clamping force.

[0035] Example 2

[0036] like Figures 1-6 As shown, based on Embodiment 1, this embodiment provides a connection method between the suction cup 13 and the clamping mechanism, as detailed below:

[0037] A suction cup 13 capable of moving up and down is installed in the inner groove of the clamping cylinder 5. The suction cup 13 can generate an adsorption force on the end of the crystal rod. When the suction cup 13 moves downward and approaches the end of the crystal rod, a pressure difference is formed between the inside and outside of the suction cup 13, thereby generating an adsorption force on the end of the crystal rod. The up and down movement of the suction cup 13 can be achieved by a drive device connected to it. The adsorption force of the suction cup 13 can assist the clamping plate in fixing the crystal rod. Especially for some crystal rods with relatively smooth surfaces or special shapes, it increases the reliability of fixing, prevents the crystal rod from shifting due to vibration or other reasons during processing, and improves the stability of the processing process.

[0038] A suction cup 13 is positioned in the middle of multiple clamping plates 7, and a telescopic rod 10 connects the suction cup 13 to each clamping plate 7. When the suction cup 13 moves up and down, the telescopic rod 10 extends and retracts accordingly. When the suction cup 13 moves downwards to pick up the crystal rod, the telescopic rod 10 extends; when the suction cup 13 moves upwards to detach from the crystal rod, the telescopic rod 10 shortens. Simultaneously, a spring 11 inside the telescopic rod 10 applies an outward extending force, ensuring the stability of the connection between the suction cup 13 and the clamping plates 7 to a certain extent. The telescopic rod 10 has a spring 11 installed inside, which applies an outward extending force. When the suction cup 13 moves up and down, the telescopic rod 10 extends and retracts under the combined action of the spring force 11 and external forces (such as the tension or pressure when the suction cup 13 moves). When the suction cup 13 moves downward to adsorb the crystal rod, the external pulling force overcomes part of the elastic force of the spring 11, causing the telescopic rod 10 to extend; when the suction cup 13 moves upward to detach from the crystal rod, the elastic force of the spring 11 helps the telescopic rod 10 to shorten.

[0039] A hydraulic cylinder is fixed inside the gripping cylinder 5. The output end of the hydraulic cylinder is connected to the suction cup 13. When the hydraulic cylinder is working, the extension and retraction of the piston rod drives the suction cup 13 to move up and down. When the piston rod extends, it pushes the suction cup 13 downward to approach the end of the crystal rod for adsorption; when the piston rod retracts, it drives the suction cup 13 upward to detach from the crystal rod. The hydraulic cylinder provides a stable and controllable power source for the up and down movement of the suction cup 13, enabling precise control of the position of the suction cup 13.

[0040] A suction pipe 6 is connected to the suction cup 13. One end of the suction pipe 6 is connected to the interior of the suction cup 13, and the other end is connected to an external ventilation device. When the external ventilation device is working, it draws air from inside the suction cup 13 through the suction pipe 6, creating a negative pressure inside the suction cup 13, thereby generating an adsorption force on the end of the crystal rod. When the suction stops, the pressure inside the suction cup 13 gradually returns to normal, and the adsorption force disappears. The suction pipe 6, in conjunction with the external ventilation device, provides a pathway for the suction cup 13 to generate an adsorption force.

[0041] Example 3

[0042] like Figures 1-6 As shown, based on Embodiment 1 and Embodiment 2, this embodiment provides a feeding and discharging structure, as detailed below:

[0043] The clamping device also includes an infeed line 2 and an outfeed line 3, both of which are connected to the base. The pick-up tray 1 has an infeed position and an outfeed position. The infeed line 2 and the outfeed line 3 extend to the infeed position and the outfeed position, respectively. During the processing, the crystal rod is transported to the infeed position of the pick-up tray 1 through the infeed line 2. The pick-up tray 1 rotates to transfer the crystal rod to the processing position for end face grinding. After processing, the pick-up tray 1 rotates again to transfer the crystal rod to the outfeed position, where the outfeed line 3 delivers the crystal rod. The cooperation between the infeed line 2 and the outfeed line 3 and the pick-up tray 1 realizes the automated loading and unloading of the crystal rod during the processing, improves processing efficiency, reduces manual intervention, and ensures the orderly flow of the crystal rod in the processing flow.

[0044] Working principle:

[0045] The crystal ingots are first conveyed to the feeding position of the pick-up tray 1 via the feeding line 2. The feeding line 2 provides a stable and automatic conveying path for the crystal ingots, reducing the tedious manual handling. Once the crystal ingots arrive at the feeding position, the pick-up tray 1 is in standby mode, ready to receive the crystal ingots and proceed with subsequent operations.

[0046] The gripping cylinder 5 at the bottom of the material handling tray 1 begins to operate. The gripping mechanism arranged circumferentially inside the gripping cylinder 5 is activated, and the gripping plates in the gripping mechanism begin to move under the drive of the connecting rod 8. One end of the connecting rod 8 is hinged to the connecting piece 9 fixed to the inner wall of the inner groove, and the other end is hinged to the gripping plate. As the gripping mechanism is driven, the connecting rod 8 pushes the gripping plate to rotate around the hinge point with the connecting piece 9, and multiple gripping plates move towards the crystal rod simultaneously. Since the inner side of the gripping plate is made of rubber, when it approaches the crystal rod, the rubber gripping surface will deform according to the shape of the crystal rod surface, tightly adhering to the crystal rod, while increasing the friction, firmly holding the crystal rod, and completing the initial fixation of the crystal rod.

[0047] The suction cup 13 in the inner groove of the clamping cylinder 5 then comes into play. The hydraulic cylinder connected to the suction cup 13 is activated, and the piston rod of the hydraulic cylinder extends, pushing the suction cup 13 downwards towards the end of the crystal rod. When the suction cup 13 is a certain distance away from the end of the crystal rod, the external exhaust device draws air from inside the suction cup 13 through the exhaust pipe 6, creating a negative pressure inside the suction cup 13 and generating a pressure difference with the outside, thereby generating an adsorption force on the end of the crystal rod, further assisting the clamping plate in fixing the crystal rod. During this process, the telescopic rod 10 connecting the suction cup 13 and the multiple clamping plates 7 will extend and retract as the suction cup 13 moves up and down. The spring 11 inside the telescopic rod 10 applies an outward extension force to the telescopic rod 10, ensuring the stability of the connection between the suction cup 13 and the clamping plates 7. After the double fixing of the crystal rod is completed, the material picker 1 starts to rotate, transferring the crystal rod from the feeding position to the processing position.

[0048] After the crystal ingot end face is flat-ground, the feeding tray 1 rotates again, transferring the crystal ingot to the discharge position. At this time, the clamping mechanism reverses its movement, and the clamping plate moves away from the crystal ingot under the action of the connecting rod 8, releasing the clamp on the crystal ingot. Simultaneously, the hydraulic cylinder piston rod retracts, causing the suction cup 13 to move upward and detach from the crystal ingot. The air extraction pipe 6 stops pumping air, and the suction force of the suction cup 13 on the crystal ingot disappears. Finally, the crystal ingot is sent out through the discharge line 3, completing the entire processing flow, and awaits the loading and processing of the next crystal ingot.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate and not limit the technical solutions of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to this utility model without departing from the spirit and scope of this utility model. Any modifications or partial substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A sapphire crystal rod end face flat grinding and clamping device, characterized in that, include: The material receiving tray (1) is capable of rotating freely; The clamping cylinder (5) is installed at the bottom of the material picking plate (1). The inside of the clamping cylinder (5) is provided with an inner groove, and multiple clamping mechanisms arranged in a circumferential direction are installed in the inner groove. The clamping mechanism includes multiple circumferentially distributed clamping plates, which are parallel to each other and can perform clamping and releasing actions simultaneously.

2. The sapphire crystal rod end face flat grinding and clamping device according to claim 1, characterized in that, The clamping mechanism includes a connector (9) fixed on the inner wall of the inner groove. The clamping plate and the connector (9) are connected by multiple connecting rods (8). The two ends of the connecting rods (8) are respectively hinged to the connector (9) and the clamping plate (7).

3. The sapphire crystal rod end face flat grinding and clamping device according to claim 2, characterized in that, The clamp (7) and the corresponding connector (9) are parallel to each other, and the lengths of the multiple connecting rods (8) are all equal and parallel to each other.

4. The sapphire crystal rod end face flat grinding and clamping device according to claim 2, characterized in that, The inner groove of the clamping cylinder (5) is equipped with a suction cup (13) that can move up and down, and the suction cup (13) can generate an adsorption force on the end of the crystal rod.

5. The sapphire crystal rod end face flat grinding and clamping device according to claim 4, characterized in that, The suction cup (13) is located in the middle of multiple clamping plates (7), and a telescopic rod (10) is connected between the suction cup (13) and the multiple clamping plates (7).

6. The sapphire crystal rod end face flat grinding and clamping device according to claim 4, characterized in that, The inside of the clamping cylinder (5) is fixed with an oil cylinder, and the output end of the oil cylinder is connected to the suction cup (13).

7. The sapphire crystal rod end face flat grinding and clamping device according to claim 4, characterized in that, The suction cup (13) is connected to an air extraction pipe (6). One end of the air extraction pipe (6) is connected to the inside of the suction cup (13), and the other end is connected to an external air extraction device.

8. The sapphire crystal rod end face flat grinding and clamping device according to claim 5, characterized in that, A spring (11) is installed inside the telescopic rod (10), and the spring (11) applies an outward stretching force to the telescopic rod (10).

9. A sapphire crystal rod end face flat grinding and clamping device according to claim 2, characterized in that, The inner clamping position of the clamp (7) is made of rubber.

10. A sapphire crystal rod end face flat grinding and clamping device according to claim 1, characterized in that, It also includes a feed line (2) and a discharge line (3). The feeding tray (1) is provided with a feed position and a discharge position. The feed line (2) and the discharge line (3) extend to the feed position and the discharge position, respectively.

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