Polishing device for surface coating of piezoelectric ceramic piece

Abstract

The utility model provides a piezoelectric ceramic piece surface coating polishing device, which relates to a polishing structure and comprises a tray carrying mechanism, a material distribution station, a material distribution robot, a bottom shell overturning station, a material carrying mechanism, a polishing stone linkage station and a manual tray feeding track. The tray carrying mechanism is used for carrying incoming material trays with piezoelectric ceramic pieces to the material distribution station, and the driving end of the material distribution robot is provided with an adsorption head set so as to adsorb coating blank areas of patterned conductive coatings of the piezoelectric ceramic pieces and transfer the piezoelectric ceramic pieces from the material distribution station to the bottom shell overturning station. According to the full-automatic ceramic wafer polishing machine, full-automatic operation of feeding, polishing and discharging of the ceramic wafer through the tray can be achieved, manual intervention and transferring are not needed in the midway, and touch to a coating on the surface of the ceramic wafer can be effectively avoided in the transition transferring process; and the smoothness of the coating of the ceramic wafer before polishing is ensured, and the polishing efficiency is better.

Description

Technical Field

[0001] This utility model relates to a grinding structure, and more particularly to a grinding device for the surface coating of a piezoelectric ceramic sheet. Background Technology

[0002] Piezoelectric ceramics are hard and brittle, and are prone to cracking or chipping. When one side of the piezoelectric ceramic is used as an electrode, a conductive material needs to be coated on the side of the device to form an electrical path. In addition, in order to optimize electrode performance, improve surface quality, ensure connection reliability and improve the overall performance of the device, the conductive coating on one side of the piezoelectric ceramic also needs to be polished.

[0003] Because piezoelectric ceramics require a high degree of surface smoothness during polishing, and existing polishing equipment requires a lot of manual operation, it is difficult to guarantee the surface smoothness of piezoelectric ceramics before polishing. If the ceramic surface is dirty before polishing, polishing errors will easily occur during polishing, resulting in poor precision of the ceramic sheet. In addition, the current polishing work of ceramic sheets is also relatively rough and the polishing efficiency is low. Utility Model Content

[0004] To address the aforementioned technical problems, the purpose of this utility model is to provide a piezoelectric ceramic sheet surface coating polishing device that can achieve fully automated operation of ceramic sheet loading, polishing, and unloading from a tray, without the need for manual intervention during transfer. Furthermore, it can effectively avoid touching the ceramic sheet surface coating during transition transfer, ensuring the smoothness of the ceramic sheet coating before polishing, and also improving polishing efficiency.

[0005] This utility model provides the following technical solution:

[0006] A piezoelectric ceramic sheet surface coating polishing device includes a pallet handling mechanism, a material distribution station, a material distribution robot, a bottom shell flipping station, a polishing stone linkage station, and a manual pallet loading track. The pallet handling mechanism transports an incoming pallet containing piezoelectric ceramic sheets to the material distribution station. The upward-facing surface of the piezoelectric ceramic sheets on the incoming pallet has a patterned conductive coating. The drive end of the material distribution robot is equipped with an adsorption head assembly to adsorb the blank areas of the patterned conductive coating on the piezoelectric ceramic sheets and transfer the piezoelectric ceramic sheets from the material distribution station to the bottom shell flipping station. The bottom shell flipping station includes... The system includes a rotating disc for receiving and adsorbing the material fed by the adsorption head assembly, and a transition disc for receiving the material fed by the rotating disc after rotating 180°. When the rotating disc receives the material, the conductive coating of the piezoelectric ceramic sheet is still facing upwards. After the rotating disc rotates 180°, the conductive coating of the piezoelectric ceramic sheet faces downwards. The transition disc has a receiving groove for receiving the piezoelectric ceramic sheet, and the bottom of the receiving groove has a stepped groove to prevent the patterned conductive coating from being exposed. The drive end of the material handling mechanism is equipped with an elastic adsorption assembly, which is used to adsorb the piezoelectric ceramic sheet in the receiving groove and transport it to the grinding stone linkage station for elastic positioning and grinding. After grinding, the material is transported to the manual loading track. The grinding stone linkage station includes a grinding disc that rotates to horizontally grind the conductive coating of the piezoelectric ceramic sheets. The manual loading track is equipped with a receiving tray for receiving the material from the elastic adsorption assembly. Thus, in the entire process, the operator only needs to load the incoming material tray and the receiving tray. Because the piezoelectric ceramic sheets on the incoming material tray are scattered and the conductive coating is facing upwards, the material distribution robot, the bottom shell flipping station, and the material handling mechanism can completely avoid the conductive coating before grinding, preventing contamination of the conductive coating and affecting the grinding accuracy. During grinding, the elastic adsorption... The attachment group adsorbs the piezoelectric ceramic sheet, pressing the side with the conductive coating onto the horizontal grinding disc with a certain elasticity. The grinding disc rotates to grind the piezoelectric ceramic sheet. After grinding, the elastic adsorption group can continue to transfer the piezoelectric ceramic sheet to the manual loading track. The manual loading track has a receiving tray for manually loading piezoelectric ceramic sheets. Thus, the fully automatic operation of loading, grinding and unloading ceramic sheets from the tray can be realized without manual intervention. The transition can also effectively avoid touching the coating on the surface of the ceramic sheet, ensuring the smoothness of the coating before grinding and improving grinding efficiency.

[0007] Preferably, the incoming material pallets containing piezoelectric ceramic sheets are stacked and placed in a material box on one side of the material distribution station. The material distribution station includes an empty material tray collection area and a material placement area. The pallet handling mechanism transports the incoming material pallets from the material box to the platform in the material placement area. A top material cylinder is installed at the bottom of the empty material tray collection area, and a pusher plate is also provided on one side of the platform. After the incoming material pallet is empty, the drive end of the top material cylinder moves to be flush with the platform. The pusher plate is activated to drive the empty incoming material pallet to the drive end of the top material cylinder. Then, the top material cylinder drives the empty incoming material pallet to descend and, when the pusher plate is activated again, drives the empty incoming material pallet to move to be flush with the platform for stacking and stacking of the empty incoming material pallets.

[0008] Preferably, the flip disk is provided with six sets of carrier slots evenly distributed around the central positioning slot. Each set of carrier slots has a set of suction cups at the bottom. The adsorption head group includes multiple sets of micro adsorption head units. The multiple sets of micro adsorption head units combine to adsorb the blank area of ​​the patterned conductive coating of the piezoelectric ceramic sheet. Furthermore, a positioning post is provided on one side of the adsorption head group for corresponding to the positioning slot for insertion and positioning.

[0009] Preferably, the receiving grooves are six sets corresponding to the carrying grooves, and the center of each of the six sets of receiving grooves is provided with a positioning post 2 that is inserted and positioned with the positioning groove.

[0010] Preferably, both the flipping disc and the transition disc are configured in two sets, and each set of transition discs is driven by a corresponding linear drive unit to move back and forth below the corresponding flipping disc and the material handling mechanism. The two sets of transition discs are staggered during movement. Thus, the six sets of piezoelectric ceramic sheets can form a unit. When the piezoelectric ceramic sheet of a unit is placed on the first set of flipping discs and flipped, the first set of transition discs corresponding to the first set of flipping discs moves to below the first set of flipping discs. The second set of flipping discs can continue to feed material at the same time to improve the efficiency of the grinding work. Similarly, when the second set of flipping discs flips over, the corresponding second set of transition discs moves to below the second set of flipping discs. The first set of transition discs and the second set of transition discs move in a staggered manner to move to below the material handling mechanism to cooperate with it in grabbing materials.

[0011] Preferably, the elastic adsorption assembly includes six sets of elastic adsorption head units corresponding one-to-one with the slots on the transition plate, and a mounting plate for positioning the six sets of elastic adsorption head units. The mounting plate is installed on the drive end of the material handling mechanism. The six sets of elastic adsorption head units include six sets of fixing sleeves evenly distributed and fixed along the circumference of the mounting plate. Two sets of guide sleeves are axially guided to both ends of the fixing sleeves. A set of top pressure springs is placed between the two sets of guide sleeves to press against each other. The guide sleeve at the top of the fixing sleeve is connected to a negative pressure air pipe through a pipeline, and the guide sleeve at the bottom of the fixing sleeve is connected to a suction nozzle for adsorbing piezoelectric ceramic sheets. Thus, in one... During grinding and handling, six sets of piezoelectric ceramic sheets can be simultaneously adsorbed and placed on the grinding head. When the grinding head rotates, the six sets of grinding heads can be simultaneously ground to improve grinding efficiency. Due to the pressure of the top spring on the guide sleeve, when the material handling mechanism transfers the piezoelectric ceramic sheet to the top of the grinding head, it drives the elastic adsorption group to descend so that the piezoelectric ceramic sheet can elastically press against the grinding head. That is, because of the pressure of the top spring, the piezoelectric ceramic sheet can form a specific size (such as 2N) of clamping force between it and the grinding head. Thus, a stable thickness of the conductive coating of the piezoelectric ceramic sheet can be ground, and the grinding precision is also higher.

[0012] Material distribution robots are generally robotic arms whose drive ends can be adjusted in the X, Y, and Z directions using existing technology. Pallet handling mechanisms and material handling mechanisms are linear modular gantry cranes whose drive ends can be adjusted in the X, Y, and Z directions. Both are existing technologies and will not be elaborated on here.

[0013] Preferably, the grinding stone linkage station includes two sets of grinding boxes, a box frame, and a staggered drive motor; the grinding disc is placed inside the grinding box, and each side of the box frame has a set of side plates. Each set of side plates has two sets of flared guide grooves, and the flared openings of the two sets of guide grooves on each set of side plates are arranged opposite each other. The two sets of guide grooves on the upper and lower openings of the two sets of side plates are correspondingly arranged, and a grinding box is supported by an X-axis horizontal roller installed in the corresponding guide groove. The X-axis horizontal roller is perpendicular to the side plate. Two sets of Z-axis slide rails are also provided on both sides of the grinding box. The Z-axis slide rails are slidably mounted on a set of Y-axis sliders along the Z-axis. The Y-axis sliders are slidably mounted on the surface of the side plates along the Y-axis. A connecting plate extending out of the side plate is also provided on the Y-axis slider. The two sets of side plates are interchangeably mounted. There are two sets of drive shafts. The ends of the two sets of drive shafts on one side plate are connected to a belt via pulleys. The two sets of connecting plates on the other side plate are connected to the belts on both sides of the pulleys. The misaligned drive motor installed at the bottom of the box frame is connected to the drive shafts. Therefore, when one set of drive shafts rotates, the other set of drive shafts is synchronously driven to rotate via the belts. The rotation of the belts will synchronously drive the connecting plates on the belts to move. Since the two sets of connecting plates on the side plate are connected to the belts on both sides of the pulleys, the rotation of the belts can drive the two sets of connecting plates to move in opposite directions. That is, when one set of grinding boxes moves forward, the other set of grinding boxes moves backward. The distribution of the flared guide grooves and the setting of the Z-axis slide rail and Y-axis slider can ensure that the two sets of grinding boxes can be misaligned vertically to avoid interference in movement.

[0014] Preferably, each of the two grinding boxes contains two corresponding grinding discs. Therefore, when one grinding box moves to below the material handling mechanism, one grinding disc can be used for grinding, while the other grinding disc can be cleaned. The grinding discs in the other, misaligned grinding box can be manually maintained, replaced, and inspected to improve efficiency. The bottom rotating block of the grinding disc extends out of the grinding box and is mounted on the bottom of the box. Two rotary drive motors are provided and mounted on a lifting plate. The lifting plate is connected to a lifting cylinder mounted on the box frame. When the grinding box moves to below the material handling mechanism, the lifting cylinder lifts the two rotary drive motors, causing their drive ends to magnetically connect with the two grinding disc rotating blocks above. Therefore, since the rotary drive motors can be detachably connected to the grinding discs, their position does not need to move with the grinding box. Only two motors are required to complete the corresponding connection of the four grinding discs, which is convenient.

[0015] Preferably, a set of cleaning and blowing groups is also provided on one side of the box frame. The cleaning and blowing group includes a cleaning and blowing box driven by a push cylinder to reciprocate. When the grinding box moves to the bottom of the material handling mechanism, the cleaning and blowing box covers the grinding box under the horizontal drive of the push cylinder. One side of the cleaning and blowing box is provided with two sets of high-pressure carbon dioxide gas inlets that are aligned with the two sets of grinding discs, and the other side is provided with two sets of circulating gas outlets opposite to the two sets of high-pressure carbon dioxide gas inlets. Therefore, when one set of grinding discs is performing grinding operations, the cleaning and blowing box can not only play a certain protective role, but also spray high-pressure carbon dioxide gas from one side of the other set of empty grinding discs to spray and clean the grinding discs. The sprayed gas can be collected by the circulating gas outlets for recirculation. The cleaning and blowing box is also provided with nozzles for spraying hot air toward the grinding discs to dehumidify.

[0016] To further improve automation efficiency, the manual loading track is replaced with a conveyor belt track. A worker places the receiving tray for collecting one unit (six groups) of piezoelectric ceramic sheets onto the conveyor belt track. The elastic adsorption unit, driven by the material handling mechanism, moves above the receiving tray to unload the piezoelectric ceramic sheets. On one side of the manual loading track, an automatic pallet loading mechanism is also installed. This mechanism transports the stacking pallets to the unloading robot, which then clamps the piezoelectric ceramic sheets one by one from the receiving tray and stacks them into the stacking slots of the stacking pallet. The automatic pallet loading mechanism includes… The system includes a palletizing and sorting group, which is a current technology. The sorting claws position the second-to-last pallet of the bottom layer. The bottom pallet falls onto the conveyor belt below and moves with it to the positioning area. In the positioning area, a set of top cylinders drives a slotted plate to limit the positioning of the pallet. Then, a robot arm is used to transfer the piezoelectric ceramic sheets to the pallet. After the pallet is stacked, the linear drive module used to position the top cylinders drives the pallet to the next station, where it awaits the handling by the pallet arm.

[0017] An operating method for a piezoelectric ceramic sheet surface coating polishing device, based on the above-mentioned piezoelectric ceramic sheet surface coating polishing device, includes the following steps:

[0018] S1: First, a manual person moves a set of material boxes with multiple incoming pallets to the pallet handling mechanism. Then, the pallet handling mechanism moves a set of incoming pallets to the material distribution station.

[0019] S2: The drive end of the material distribution robot moves to the top of the incoming material tray and takes pictures to collect the position and pattern information of the piezoelectric ceramic sheet to adjust the position of the adsorption head group of the drive end, so as to avoid the patterned conductive coating on the piezoelectric ceramic sheet from adsorbing the piezoelectric ceramic sheet. The material distribution robot transfers the piezoelectric ceramic sheet to the flipping tray, and then the flipping tray rotates 180° to make the piezoelectric ceramic sheet flipped and placed on the transition tray.

[0020] S3: The transition plate delivers the piezoelectric ceramic sheet to the material handling mechanism below. Then, the elastic adsorption group of the material handling mechanism adsorbs the piezoelectric ceramic sheet and transports it to the grinding stone linkage station for elastic positioning and grinding. After grinding, the piezoelectric ceramic sheet is transported to the manual upper plate track to complete the unloading.

[0021] The beneficial effects of this utility model are as follows: The piezoelectric ceramic sheet surface coating grinding device provided by this utility model can realize fully automatic operation of ceramic sheet loading, grinding, and unloading from the tray. No manual intervention is required during the process, and the transition can effectively avoid contact with the ceramic sheet surface coating, ensuring the smoothness of the ceramic sheet coating before grinding. The grinding efficiency is also better. In the overall process, the operator only needs to load the incoming material tray and the receiving tray. Since the piezoelectric ceramic sheets on the incoming material tray are messy and the conductive coating is facing upwards, the conductive coating can be completely avoided before grinding by using a material distribution robot, a bottom shell flipping station, and a material handling mechanism. If the surface becomes dirty, it will affect the grinding accuracy. During grinding, the elastic adsorption group adsorbs the piezoelectric ceramic sheet, pressing the side with the conductive coating onto the horizontal grinding disc with a certain elasticity. The grinding disc rotates to grind the piezoelectric ceramic sheet. After grinding, the elastic adsorption group can continue to transfer the piezoelectric ceramic sheet to the manual loading track. The manual loading track is equipped with a receiving tray for receiving piezoelectric ceramic sheets. Thus, the fully automatic operation of loading, grinding and unloading ceramic sheets from the tray can be realized without manual intervention. The transfer can also effectively avoid touching the coating on the surface of the ceramic sheet, ensuring the smoothness of the coating before grinding and improving grinding efficiency. Attached Figure Description

[0022] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0023] Figure 1 This is a schematic diagram showing the positions of the material distribution station, the bottom shell flipping station, the material handling mechanism, the polishing stone linkage station, and the manual loading track in this utility model.

[0024] Figure 2 This is a top-down view of the pallet handling mechanism, material distribution station, material distribution robot, bottom shell flipping station, material handling mechanism, and polishing stone linkage station.

[0025] Figure 3 This is a structural diagram of a pallet handling mechanism;

[0026] Figure 4 This is a structural diagram of the material distribution station;

[0027] Figure 5 This is a schematic diagram of the drive end of the material distribution robot;

[0028] Figure 6 This is a structural schematic diagram of the bottom shell flipping station;

[0029] Figure 7 This is a structural diagram of the transition disk section;

[0030] Figure 8 This is a schematic diagram of the flip disk structure;

[0031] Figure 9 This is a structural diagram of a material handling mechanism;

[0032] Figure 10 This is a structural diagram of the polishing stone linkage station;

[0033] Figure 11 This is a schematic diagram of the structure of the elastic adsorption group;

[0034] Figure 12 yes Figure 10 A partial structural diagram;

[0035] Figure 13 This is a structural diagram of the blowbox section;

[0036] Figure 14 This is a schematic diagram of the structure of the manual loading track;

[0037] Figure 15 This is a schematic diagram of the automatic pallet feeding mechanism;

[0038] Figure 16 This is a structural schematic diagram of the groove plate section;

[0039] Markings in the diagram:

[0040] 1. Pallet handling mechanism; 2. Material distribution station; 3. Material distribution robot; 4. Bottom shell flipping station; 5. Material handling mechanism; 6. Polishing stone linkage station; 7. Manual pallet loading track; 8. Piezoelectric ceramic sheet; 9. Incoming pallet; 10. Receiving tray; 11. Automatic pallet loading mechanism; 12. Stacking pallet; 13. Top cylinder; 14. Slot plate; 15. Drive linear module; 21. Material box; 22. Empty material tray collection area; 23. Material placement area; 24. Platform; 25. Top cylinder; 26. Push plate; 31. Adsorption head assembly; 41. Tilting tray; 42. Transition tray; 43. Container slot; 44. Step slot; 45. Loading slot; 46. Suction cup; 47. Positioning Column 1; 48. Positioning Column 2; 49. Linear Drive Unit; 51. Elastic Adsorption Group; 61. Grinding Disc; 62. Grinding Box; 63. Box Frame; 64. Offset Drive Motor; 65. Side Plate; 66. Guide Groove; 67. X-axis Horizontal Roller; 68. Z-axis Slide Rail; 69. Y-axis Slider; 610. Connecting Plate; 611. Drive Shaft; 612. Lifting Plate; 613. Lifting Cylinder; 614. Rotary Drive Motor; 615. Cleaning Box; 616. High-Pressure Carbon Dioxide Gas Inlet; 617. Circulating Gas Outlet; 618. Nozzle; 511. Mounting Plate; 512. Elastic Adsorption Head Unit; 5121. Fixing Sleeve; 5122. Guide Sleeve; 5123. Suction Nozzle. Detailed Implementation

[0041] Example 1

[0042] like Figure 1-14As shown, a piezoelectric ceramic sheet surface coating polishing device, in this embodiment, includes a pallet transport mechanism 1, a material distribution station 2, a material distribution robot 3, a bottom shell flipping station 4, a material transport mechanism 5, a polishing stone linkage station 6, and a manual loading track 7. The pallet transport mechanism 1 is used to transport the incoming pallet 9 containing piezoelectric ceramic sheets 8 to the material distribution station 2. The upward-facing surface of the piezoelectric ceramic sheets 8 on the incoming pallet 9 has a patterned conductive coating. The drive end of the material distribution robot 3 is equipped with an adsorption head assembly 31 to adsorb the blank areas of the patterned conductive coating on the piezoelectric ceramic sheets 8, and transfer the piezoelectric ceramic sheets 8 from the material distribution station 2 to the bottom shell flipping station 4. The transfer station 4 includes a rotating disc 41 for receiving and adsorbing the material fed by the adsorption head assembly 31, and a transition disc 42 for receiving the material fed by rotating the rotating disc 41 180°. When the rotating disc 41 receives the material, the conductive coating of the piezoelectric ceramic sheet 8 is still facing upwards. After the rotating disc 41 rotates 180°, the conductive coating of the piezoelectric ceramic sheet 8 is facing downwards. The transition disc 42 has a receiving groove 43 for receiving the piezoelectric ceramic sheet 8, and the bottom of the receiving groove 43 has a stepped groove 44 for avoiding the patterned conductive coating. The drive end of the material handling mechanism 5 is equipped with an elastic adsorption assembly 51. The elastic adsorption assembly 51 is used to adsorb the piezoelectric ceramic sheet 8 in the receiving groove 43 and transport it to the grinding stone linkage station. 6. The grinding stone linkage station 6 includes a grinding disc 61 that rotates to horizontally grind the conductive coating of the piezoelectric ceramic sheet 8. The manual loading track 7 is equipped with a receiving tray 10 for receiving the material from the elastic adsorption assembly 51. Thus, in the entire process, the operator only needs to load the material receiving tray 9 and the receiving tray 10. Since the piezoelectric ceramic sheets 8 on the material receiving tray 9 are scattered and the conductive coating is facing upwards, the material distribution robot 3, the bottom shell flipping station 4, and the material handling mechanism 5 can completely avoid the conductive coating before grinding, thus preventing dirt from appearing on the conductive coating and affecting the grinding accuracy. During grinding... The elastic adsorption group 51 adsorbs the piezoelectric ceramic sheet 8, pressing the side with the conductive coating onto the horizontal grinding disc 61 with a certain elastic force. The grinding disc 61 rotates to grind the piezoelectric ceramic sheet 8. After grinding, the elastic adsorption group 51 can continue to transfer the piezoelectric ceramic sheet 8 to the manual loading track 7. The manual loading track 7 is equipped with a receiving tray 10 for receiving the piezoelectric ceramic sheet 8. Thus, the fully automatic operation of loading, grinding and unloading of ceramic sheets from the tray can be realized without the need for manual intervention in the transfer. The transfer can also effectively avoid touching the coating on the surface of the ceramic sheet, ensuring the smoothness of the coating before grinding and improving the grinding efficiency.

[0043] Example 2

[0044] A surface coating polishing device for piezoelectric ceramic sheets, in this embodiment, is a further limitation based on Embodiment 1, such as... Figure 2-4 As shown, the incoming material pallets 9 containing piezoelectric ceramic sheets 8 are stacked and placed on the material box 21 on one side of the material distribution station 2. The material distribution station 2 includes an empty material tray collection area 22 and a material placement area 23. The pallet handling mechanism 1 transports the incoming material pallets 9 from the material box 21 to the platform 24 of the material placement area 23. A top material cylinder 25 is installed at the bottom of the empty material tray collection area 22, and a pusher plate 26 is also provided on one side of the platform 24. After the incoming material pallets 9 are empty, the drive end of the top material cylinder 25 moves to be flush with the platform 24. The pusher plate 26 is activated to drive the empty incoming material pallets 9 to the drive end of the top material cylinder 25. Then, the top material cylinder 25 drives the empty incoming material pallets 9 to descend and drives the empty incoming material pallets 9 to be flush with the platform 24 when the pusher plate 26 is activated again for stacking the empty incoming material pallets 9.

[0045] like Figure 5-8 As shown, the flip disk 41 is provided with six sets of carrier slots 45 evenly distributed around the central positioning slot. Each set of carrier slots 45 has a set of suction cups 46 at the bottom. The adsorption head group 31 includes multiple sets of micro adsorption head units. The multiple sets of micro adsorption head units combine to adsorb the blank area of ​​the patterned conductive coating of the piezoelectric ceramic sheet 8. On one side of the adsorption head group 31, there is also a positioning post 47 for corresponding to the positioning slot for insertion and positioning.

[0046] The receiving groove 43 consists of six sets corresponding to the carrying groove 45, and the center of each of the six sets of receiving grooves 43 is provided with a positioning post 48 that is inserted and positioned with the positioning groove.

[0047] Both the flipping disc 41 and the transition disc 42 are configured in two sets, and each set of transition discs 42 is driven by a corresponding linear drive unit 49 (cylinder) to move back and forth under the corresponding flipping disc 41 and under the material handling mechanism 5. The two sets of transition discs 42 are staggered during movement. Thus, the six sets of piezoelectric ceramic sheets 8 can form a unit. When the piezoelectric ceramic sheet 8 of a unit is placed on the first set of flipping discs 41 and flipped, the first set of transition discs 42 corresponding to the first set of flipping discs 41 moves to the bottom of the first set of flipping discs 41. The second set of flipping discs 41 can continue to feed materials at the same time to improve the efficiency of the grinding work. Similarly, when the second set of flipping discs 41 flips, the corresponding second set of transition discs 42 moves to the bottom of the second set of flipping discs 41. The first set of transition discs 42 and the second set of transition discs 42 move in a staggered manner to move to the bottom of the material handling mechanism 5 to cooperate with it to grab materials.

[0048] like Figure 11As shown, the elastic adsorption assembly 51 includes six sets of elastic adsorption head units 512 corresponding one-to-one with the slots 43 on the transition plate 42, and a mounting plate 511 for positioning the six sets of elastic adsorption head units 512. The mounting plate 511 is installed on the drive end of the material handling mechanism 5. The six sets of elastic adsorption head units 512 include six sets of fixing sleeves 5121 evenly distributed and fixed along the circumference of the mounting plate 511. Two sets of guide sleeves 5122 are axially guided to both ends of the fixing sleeves 5121. A set of top pressure springs is provided between the two sets of guide sleeves 5122. The guide sleeve 5122 at the top of the fixing sleeve 5121 is connected to a negative pressure air pipe through a pipeline, and the guide sleeve 5122 at the bottom of the fixing sleeve 5121 is connected to a pressure spring for adsorption. The suction nozzle 5123 of the piezoelectric ceramic sheet 8 can simultaneously adsorb six sets of piezoelectric ceramic sheets 8 onto the grinding head during a single grinding process. When the grinding head rotates, the six sets of grinding heads can be simultaneously ground to improve grinding efficiency. Due to the pressure of the top spring on the guide sleeve 5122, when the material handling mechanism 5 transfers the piezoelectric ceramic sheet 8 to the top of the grinding head, it drives the elastic adsorption group 51 to descend so that the piezoelectric ceramic sheet 8 can elastically press against the grinding head. That is, because of the pressure of the top spring, the piezoelectric ceramic sheet 8 can form a specific size (such as 2N) of clamping force with the grinding head. Thus, a stable thickness of the conductive coating of the piezoelectric ceramic sheet 8 can be achieved during grinding, and the grinding accuracy is also higher.

[0049] The material distribution robot 3 is a robotic arm that can adjust the movement of its drive end in the X, Y, and Z directions using existing technology. The pallet handling mechanism 1 and the material handling mechanism 5 are linear modular gantry cranes that can adjust the movement of their drive ends in the X, Y, and Z directions. Both are existing technologies and will not be described in detail here.

[0050] like Figure 10 , 12As shown in Figure 13, the grinding stone linkage station 6 includes two grinding boxes 62, a box frame 63, and a staggered drive motor 64. The grinding disc 61 is placed inside the grinding box 62. Each side of the box frame 63 has a set of side plates 65. Each set of side plates 65 has two sets of flared guide grooves 66. The flared openings of the two sets of guide grooves 66 on each set of side plates 65 are opposite to each other. The two sets of guide grooves 66 on the upper and lower openings of the two sets of side plates 65 are correspondingly arranged and are guided and installed on the corresponding guides. A grinding box 62 is mounted on an X-axis horizontal roller 67 within the groove 66. The X-axis horizontal roller 67 is perpendicular to the side plate 65. Two sets of Z-axis slide rails 68 are also provided on both sides of the grinding box 62. The Z-axis slide rails 68 are slidably mounted on a set of Y-axis sliders 69 along the Z-axis. The Y-axis sliders 69 are slidably mounted on the surface of the side plate 65 along the Y-axis. A connecting plate 610 is also provided on the Y-axis slider 69, extending through the side plate 65. Two sets of... The drive shaft 611 and the two sets of drive shafts 611 on a set of side plates 65 are connected to a belt via pulleys. The two sets of connecting plates 610 on the set of side plates 65 are connected to the belts on both sides of the pulleys. The misaligned drive motor 64 installed at the bottom of the box frame 63 is connected to the drive shaft 611. Therefore, when the drive shaft 611 rotates, the other drive shaft 611 is synchronously driven to rotate via the belt. The rotation of the belt will synchronously drive the connecting plates 610 on the belt to move. Since the two sets of connecting plates 610 on the set of side plates 65 are connected to the belts on both sides of the pulleys, the rotation of the belt can drive the two sets of connecting plates 610 to move in opposite directions. That is, when one set of grinding boxes 62 moves forward, the other set of grinding boxes 62 moves backward. The flared distribution of the guide groove 66 and the setting of the Z-axis slide rail 68 and the Y-axis slider 69 can ensure that the two sets of grinding boxes 62 can be misaligned vertically to avoid interference in movement.

[0051] Each of the two grinding boxes 62 contains two corresponding grinding discs 61. Therefore, when one grinding box 62 moves to below the material handling mechanism 5, one grinding disc 61 can be used for grinding, while the other grinding disc 61 can be cleaned. The grinding discs 61 in the other misaligned grinding box 62 can be manually maintained, replaced, and inspected to improve efficiency. The bottom rotating block of the grinding disc 61 extends out of the grinding box 62 and is mounted on the bottom of the grinding box 62. Two rotary drive motors 614 are provided and mounted on one lifting plate 612 for lifting. The plate 612 is driven by the lifting cylinder 613 installed on the box frame 63. When the grinding box 62 moves to the bottom of the material handling mechanism 5, the lifting cylinder 613 lifts the two sets of rotary drive motors 614, so that the drive ends of the two sets of rotary drive motors 614 are magnetically connected to the two sets of grinding discs 61 above. Therefore, since the rotary drive motors 614 can be detachably connected to the grinding discs 61, the position of the rotary drive motors 614 does not need to move with the grinding box 62, and only two sets are needed to complete the corresponding connection of the four sets of grinding discs 61, which is more convenient.

[0052] A set of cleaning and blowing group is also provided on one side of the box frame 63. The cleaning and blowing group includes a cleaning and blowing box 615 driven by a push cylinder to reciprocate. When the grinding box 62 moves to the bottom of the material handling mechanism 5, the cleaning and blowing box 615 covers the grinding box 62 under the horizontal drive of the push cylinder. One side of the cleaning and blowing box 615 is provided with two sets of high-pressure carbon dioxide gas inlets 616 that are aligned with the two sets of grinding discs 61. The other side is provided with two sets of circulating gas outlets 617 that are opposite to the two sets of high-pressure carbon dioxide gas inlets 616. Therefore, when one set of grinding discs 61 is performing grinding operations, the cleaning and blowing box 615 can not only play a certain protective role, but also spray high-pressure carbon dioxide gas from one side of the other set of empty grinding discs 61 to spray and clean the grinding discs 61. The sprayed gas can be collected by the circulating gas outlet 617 for recirculation. A nozzle 618 is also provided above the cleaning and blowing box 615 to spray hot air toward the grinding discs 61 for dehumidification.

[0053] Example 3

[0054] like Figure 15-16As shown, a piezoelectric ceramic sheet surface coating polishing device, in this embodiment, is a further limitation based on embodiment 2. To further improve automation efficiency, the manual loading track 7 is set as a conveyor belt track. The manual operator places the receiving tray 10, which is used to collect one unit (six groups) of piezoelectric ceramic sheets 8, on the conveyor belt track. The elastic adsorption group 51 can move above the receiving tray 10 under the drive of the material handling mechanism 5 to unload the piezoelectric ceramic sheets 8. On one side of the manual loading track 7, an automatic pallet loading mechanism 11 is also provided. The automatic pallet loading mechanism 11 is used to convey the stacking pallet 12 to the unloading robot side. The unloading robot then clamps the piezoelectric ceramic sheets on the receiving tray 10 one by one. The 8 materials are stacked into the stacking slot of the stacking tray 12. The automatic pallet feeding mechanism 11 includes a stacking and sorting group. The stacking and sorting group is the existing technology, that is, the sorting claw is used to position the second to last stacking tray of the bottom layer. The bottom stacking tray falls onto the conveyor belt below and moves with the conveyor belt to the positioning area. In the positioning area, the slot plate 14 driven by a set of top cylinders 13 limits a set of stacking trays to ensure the positioning of the stacking trays. Then, the unloading robot is used to transfer the piezoelectric ceramic sheet 8 to the stacking tray. After the stacking is completed, the drive linear module 15 used to position the set of top cylinders 13 drives the stacked stacking tray to the next station, waiting for the stacking robot to handle the stacking tray.

[0055] Example 4

[0056] An operating method for a piezoelectric ceramic sheet surface coating polishing device, based on the piezoelectric ceramic sheet surface coating polishing device of Embodiment 1, includes the following steps:

[0057] S1: First, a set of material boxes 21 with multiple pallets 9 are manually moved to one side of the pallet handling mechanism 1. Then, the pallet handling mechanism 1 moves a set of pallets 9 to the material distribution station 2.

[0058] S2: The drive end of the material distribution robot 3 moves to the top of the incoming material tray 9 and takes pictures to collect the position and pattern information of the piezoelectric ceramic sheet 8 to adjust the position of the adsorption head group 31 of the drive end, so as to avoid the patterned conductive coating on the piezoelectric ceramic sheet 8 from adsorbing the piezoelectric ceramic sheet 8. The material distribution robot 3 transfers the piezoelectric ceramic sheet 8 to the flipping tray 41, and then the flipping tray 41 flips 180° to make the piezoelectric ceramic sheet 8 flip over and place it on the transition tray 42.

[0059] S3: The transition plate 42 delivers the piezoelectric ceramic sheet 8 to the material handling mechanism 5. Then, the elastic adsorption group 51 of the material handling mechanism 5 adsorbs the piezoelectric ceramic sheet 8 and transports it to the grinding stone linkage station 6 for elastic positioning and grinding. After grinding, the piezoelectric ceramic sheet 8 is transported to the manual loading track 7 to complete the unloading.

[0060] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A piezoelectric ceramic sheet surface coating polishing apparatus characterized by comprising: The system includes a pallet handling mechanism, a material distribution station, a material distribution robot, a bottom shell flipping station, a material handling mechanism, a polishing stone linkage station, and a manual pallet loading track. The pallet handling mechanism is used to transport incoming pallets containing piezoelectric ceramic sheets to the material distribution station. The upward-facing surface of the piezoelectric ceramic sheets on the incoming pallet has a patterned conductive coating. The drive end of the material distribution robot is equipped with an adsorption head assembly to adsorb the blank areas of the patterned conductive coating on the piezoelectric ceramic sheets and transfer the piezoelectric ceramic sheets from the material distribution station to the bottom shell flipping station. The bottom shell flipping station includes a flipping tray for receiving and adsorbing the material fed by the adsorption head assembly. The material handling mechanism includes a transition plate for receiving material fed by a 180° rotating rotating disc. The transition plate has a groove for receiving piezoelectric ceramic sheets, and the bottom of the groove has a stepped groove for avoiding the patterned conductive coating. The drive end of the material handling mechanism is equipped with an elastic adsorption group. The elastic adsorption group is used to adsorb the piezoelectric ceramic sheets in the groove and transport them to the grinding stone linkage station for elastic positioning and grinding. After grinding, the sheets are transported to the manual loading track. The grinding stone linkage station includes a grinding disc that rotates to perform horizontal grinding of the conductive coating of the piezoelectric ceramic sheets. The manual loading track is equipped with a receiving plate for receiving the material fed by the elastic adsorption group.

2. A piezoelectric ceramic sheet surface coating polishing apparatus according to claim 1, characterized by Pallets containing piezoelectric ceramic sheets are stacked and placed in a material box on one side of the material distribution station. The material distribution station includes an empty pallet collection area and a material placement area. The pallet handling mechanism transports the incoming pallets from the material box to the platform in the material placement area. A top material cylinder is installed at the bottom of the empty pallet collection area, and a pusher plate is also provided on one side of the platform. After the incoming pallet is empty, the drive end of the top material cylinder moves to be flush with the platform. The pusher plate is activated to drive the empty incoming pallet to the drive end of the top material cylinder. Then, the top material cylinder drives the empty incoming pallet to descend and, when the pusher plate is activated again, drives the empty incoming pallet to move to be flush with the platform for stacking.

3. The piezoelectric ceramic sheet surface coating polishing apparatus according to claim 1, wherein The flip disk is provided with six sets of carrier slots evenly distributed around the central positioning slot. Each set of carrier slots has a set of suction cups at the bottom. The adsorption head group includes multiple sets of micro adsorption head units. The multiple sets of micro adsorption head units combine to adsorb the blank area of ​​the patterned conductive coating of the piezoelectric ceramic sheet. Furthermore, a positioning post is provided on one side of the adsorption head group for corresponding to the positioning slot for insertion and positioning.

4. The piezoelectric ceramic sheet surface coating polishing apparatus according to claim 3, characterized by The receiving groove consists of six sets, each corresponding to one of the carrying grooves, and the center of each of the six sets of receiving grooves is provided with a positioning post 2 that is inserted and positioned with the positioning groove.

5. A piezoelectric ceramic sheet surface coating polishing apparatus according to claim 4, wherein The rotating disc and the transition disc are both configured in two sets, and each set of transition discs is driven by a corresponding linear drive unit to move back and forth under the corresponding rotating disc and the material handling mechanism. The two sets of transition discs are staggered during movement.

6. A piezoelectric ceramic sheet surface coating polishing apparatus according to claim 5, wherein The elastic adsorption assembly includes six sets of elastic adsorption head units corresponding one-to-one with the slots on the transition plate, and a mounting plate for positioning the six sets of elastic adsorption head units. The mounting plate is installed on the drive end of the material handling mechanism. The six sets of elastic adsorption head units include six sets of fixing sleeves that are evenly distributed and fixed along the circumference of the mounting plate. Two sets of guide sleeves are axially guided to both ends of the fixing sleeves. A set of top pressure springs is placed between the two sets of guide sleeves to press against each other. The guide sleeve at the top of the fixing sleeve is connected to a negative pressure air pipe through a pipeline, and the guide sleeve at the bottom of the fixing sleeve is connected to a suction nozzle for adsorbing piezoelectric ceramic sheets.

7. The piezoelectric ceramic sheet surface coating polishing apparatus according to claim 1, wherein The grinding stone linkage station includes two sets of grinding boxes, a box frame, and a staggered drive motor. The grinding disc is placed inside the grinding box. Each side of the box frame has a set of side plates. Each side plate has two sets of flared guide grooves, with the flared openings of the two guide grooves on each side plate facing each other. The two sets of guide grooves on the upper side plates, opening downwards, are correspondingly arranged. A grinding box is supported by X-axis horizontal rollers installed in the corresponding guide grooves, with the X-axis horizontal rollers perpendicular to the side plates. The grinding box also has... Two sets of Z-axis slide rails are provided. The Z-axis slide rails are slidably mounted on a set of Y-axis sliders along the Z-axis. The Y-axis sliders are slidably mounted on the surface of the side plate along the Y-axis. A set of connecting plates extending out of the side plate is also provided on the Y-axis sliders. Two sets of drive shafts are rotatably mounted between the two sets of side plates. The ends of the two sets of drive shafts on one set of side plates are connected to a set of belts through pulleys. The two sets of connecting plates on one set of side plates are connected to the belts on both sides of the pulleys. The misaligned drive motor installed at the bottom of the box frame is driven by a set of drive shafts.

8. A piezoelectric ceramic sheet surface coating polishing apparatus according to claim 7, wherein Each of the two grinding boxes contains two corresponding grinding discs, and the bottom rotating blocks of the grinding discs extend out of the grinding box and are mounted on the bottom of the grinding box. There are two sets of rotary drive motors, which are mounted on a lifting plate. The lifting plate is driven by a lifting cylinder mounted on the box frame. When the grinding box moves to the area below the material handling mechanism, the lifting cylinder lifts the two sets of rotary drive motors, so that the drive ends of the two sets of rotary drive motors are magnetically connected to the two sets of grinding disc rotating blocks above.

9. A piezoelectric ceramic sheet surface coating polishing apparatus according to claim 8, wherein A set of cleaning and blowing units is also provided on one side of the box frame. The cleaning and blowing units include a cleaning and blowing box that is driven to reciprocate by a push cylinder. When the grinding box moves to the bottom of the material handling mechanism, the cleaning and blowing box covers the grinding box under the horizontal drive of the push cylinder. One side of the cleaning and blowing box is provided with two sets of high-pressure carbon dioxide gas inlets that are aligned with the two sets of grinding discs, and the other side is provided with two sets of circulating gas outlets that are opposite to the two sets of high-pressure carbon dioxide gas inlets. A nozzle for spraying hot air toward the grinding discs to dehumidify is also provided above the cleaning and blowing box.

Images