Grinding and polishing plate automatic online circulating cleaning device for water mist polishing

Abstract

The invention discloses an automatic online circulating cleaning device for a grinding and polishing plate for water mist polishing. The automatic online circulating cleaning device comprises a soaking and dissolving unit, a mechanical cleaning unit, an air shower drying unit, a grabbing and conveying unit, an electric control unit and a storage rack. On-line cleaning of the grinding and polishing plate is achieved in a multi-unit combination mode including soaking dissolving, mechanical cleaning, air shower drying and grabbing conveying, water mist polishing is not stopped in the cleaning operation period, and the machining efficiency of the water-soluble functional crystal element is greatly improved. The combined cleaning scheme of the soaking pool and the cleaning head is adopted, and dissolved products in the surface microstructure of the grinding and polishing plate are effectively removed; the cleaned grinding and polishing plate is placed on the storage rack for standby application through the multi-joint mechanical arm and the vacuum suction cup assembly, the time for replacing the grinding and polishing plate for water mist polishing is shortened, and the efficiency is improved; the replaced grinding and polishing plate sequentially enters the soaking and dissolving unit, the mechanical cleaning unit and the air shower drying unit, and cleaning circulation is achieved.

Description

Technical Field

[0001] The invention is applied to the technical field of precision and ultra-precision machining, and relates to a water mist polishing device for a type of water-soluble functional crystal element, in particular to an automatic online circulation cleaning device for a grinding and polishing plate used for water mist polishing. Background Art

[0002] With the rapid update and iteration of equipment performance, the manufacturing requirements for water-soluble functional crystal components are becoming more and more stringent, approaching the current limit of high-performance precision manufacturing. However, most of these crystals have strong water solubility, low hardness, low fracture toughness and strong anisotropy, and are recognized as extremely difficult to process materials. How to achieve high-quality and efficient processing of water-soluble functional crystals is the forefront and hot topic of research by experts and scholars.

[0003] In order to meet the urgent needs of the country's major scientific and technological equipment for water-soluble functional crystal elements, the water mist polishing method came into being. This method uses water mist to trigger the controllable dissolution of the surface material of the water-soluble functional crystal, and removes the dissolved products under mechanical action to achieve surface flattening processing. In order to implement this method, the applicant invented "A water-dissolving micro-nano processing device based on atomized particles" (publication number: CN106379856A) and "A multi-station adaptive execution device for micro-water mist polishing" (publication number: CN110026903A), using a grinding and polishing plate with a surface microstructure to provide mechanical action, and successfully processed an ultra-smooth crystal surface. However, the efficiency and processing stability of water mist polishing are not ideal. The main reason is that during the water mist polishing process, the dissolved products continue to adhere to the surface of the grinding and polishing plate. When accumulated to a certain extent, the mechanical action of the grinding and polishing plate is sharply reduced, so that it cannot match the dissolution of the crystal material. Therefore, the grinding and polishing plate must be cleaned regularly to remove the dissolved products accumulated on its surface to ensure the continuous and stable mechanical action.

[0004] The above-mentioned invention device has three defects: first, polishing stagnates during the cleaning operation of the grinding and polishing plate, which seriously restricts the improvement of processing efficiency; second, the cleaning of the grinding and polishing plate relies solely on water flushing, which is difficult to effectively remove the dissolved products in the microstructure of the grinding and polishing plate surface; third, the cleaning of the grinding and polishing plate depends entirely on manual operation, which is time-consuming and laborious. How to overcome the above three defects at the device structure level is a key technical problem to improve the efficiency of water mist polishing and processing stability.

[0005] In the currently published academic papers and disclosed patent technologies, no examples have been found that can solve the above three defects at the functional principle and application technology level. Summary of the invention

[0006] In order to overcome the above-mentioned problems existing in the prior art, the present invention proposes an automatic online circulation cleaning device for a grinding and polishing plate used for water mist polishing, which can avoid polishing stagnation caused by cleaning the grinding and polishing plate, effectively remove dissolved products in the surface microstructure of the grinding and polishing plate, and realize automatic cleaning of the grinding and polishing plate.

[0007] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: an automatic online circulation cleaning device for a grinding and polishing plate for water mist polishing, comprising an immersion and dissolution unit, a mechanical cleaning unit, an air shower drying unit, a grabbing and transporting unit, an electric control unit and a storage rack; the grabbing and transporting unit is fixedly installed near the water mist polishing device, the immersion and dissolution unit, the mechanical cleaning unit, the air shower drying unit and the storage rack are installed around the grabbing and transporting unit, and the electric control unit is respectively connected to the immersion and dissolution unit, the mechanical cleaning unit and the air shower drying unit through a control circuit;

[0008] The mechanical cleaning unit comprises a base A, a drainage trough, a load-bearing bracket A, a cleaning motor, a support arm, a mechanical turntable, a hydraulic cylinder, a driving pulley, a driven pulley, a transmission belt, a rotary joint and a cleaning head; the base A is located at the bottom of the mechanical cleaning unit; the mechanical turntable and the drainage trough are fixedly connected to the base A, and the mechanical turntable is close to the drainage trough; the top surface of the mechanical turntable is fixedly connected to the fixed end of the hydraulic cylinder; the movable end of the hydraulic cylinder is fixedly connected to the bottom surface of the support arm; the cleaning motor and the rotary joint are installed on the support arm; the driving pulley is fixedly connected to the output shaft of the cleaning motor; the rotating end of the rotary joint is fixedly connected to the driven pulley and the cleaning head from top to bottom; a transmission belt is installed between the driving pulley and the driven pulley; the bottom surface of the cleaning head is provided with water spray microholes and a soft wiping cloth; the load-bearing bracket A is fixedly installed on the drainage trough; the top surface of the load-bearing bracket A is used to place the polishing plate;

[0009] The air shower drying unit comprises a base B, a blower, a diffusion chamber, a linear motion module, a drive motor, a gantry slide, a gantry, an air shower nozzle and a load-bearing bracket B; the base B is located at the bottom of the air shower drying unit; the load-bearing bracket B is fixedly installed on the base B and is used to place the polishing plate; the gantry slide has two gantry slides, which are installed side by side on the left and right sides of the base B, and the gantry slide is slidably connected to the base B; the two columns of the gantry are respectively installed on the two gantry slides; the linear motion module is installed on the crossbeam of the gantry; the drive motor is installed on the end of the linear motion module; the diffusion chamber is installed on the slide of the linear motion module; a plurality of air shower nozzles are installed at the bottom of the diffusion chamber; the air outlet of the air shower nozzle is directly facing the polishing plate located below it;

[0010] The grabbing and transporting unit comprises a multi-joint mechanical arm and a vacuum suction cup assembly; the multi-joint mechanical arm is fixedly installed near the water mist polishing device; a vacuum suction cup assembly is installed at the end of the multi-joint mechanical arm for picking up and placing the grinding and polishing plate.

[0011] Furthermore, the linear motion module includes a screw, a slide and a bearing seat; there are two bearing seats, which are respectively located at the two ends of the screw; the screw passes through the slide to form a screw-slide moving pair; when the screw rotates, the slide performs linear feed motion along the screw.

[0012] Furthermore, the soaking and dissolving unit, the mechanical cleaning unit, and the air shower drying unit are respectively located at three o'clock, twelve o'clock, and nine o'clock directions around the grabbing and transporting unit.

[0013] Furthermore, the soaking and dissolving unit includes a soaking tank and an electric control valve; the electric control valve is installed on the side wall of the soaking tank near the bottom.

[0014] Furthermore, the storage rack is used to place the cleaned grinding and polishing plates, so as to prepare for the rapid replacement of the grinding and polishing plates on the water mist polishing device.

[0015] Furthermore, the electronic control unit includes an electronic control system and a control circuit; the electronic control system consists of a control panel located at the top and a control port located at the bottom; the control port is connected to the electric control valve, cleaning motor, mechanical turntable, hydraulic cylinder, blower, drive motor, gantry slide and multi-joint robotic arm through the control circuit.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention realizes online cleaning of the grinding and polishing plate by adopting a multi-unit combination method including immersion dissolution, mechanical cleaning, air shower drying and grabbing and transporting. The water mist polishing does not stop during the cleaning operation, which greatly improves the processing efficiency of the water-soluble functional crystal elements.

[0018] 2. The present invention adopts a combined cleaning solution of an immersion tank and a cleaning head to achieve effective removal of dissolved products in the surface microstructure of the polishing plate; first, the softening and precipitation of dissolved products in the surface microstructure of the polishing plate are achieved through the immersion tank, and then the dissolved products are removed under the synergistic effect of spraying and wiping by the cleaning head.

[0019] 3. The present invention adopts an electric control system to control the soaking and dissolving unit, the mechanical cleaning unit, the air shower drying unit and the grabbing and transporting unit, thereby realizing automatic cleaning of the grinding and polishing plate and eliminating various disadvantages of manual cleaning.

[0020] 4. The present invention can adjust the operating time and operating parameters of the immersion and dissolution unit, the mechanical cleaning unit, the air shower drying unit and the grabbing and transporting unit by changing the cleaning program of the electronic control system, thereby specifically achieving high-quality and efficient cleaning of polishing plates with different degrees of accumulation of dissolved products.

[0021] 5. The present invention places the cleaned polishing plates on a storage rack for standby use through a multi-joint mechanical arm and a vacuum suction cup assembly, thereby reducing the time for replacing the water mist polishing polishing plates and improving efficiency; the replaced polishing plates are sequentially transferred to the soaking and dissolving unit, the mechanical cleaning unit and the air shower drying unit with the assistance of the grabbing and transporting unit, and are placed on a storage rack for standby use after gradually completing the cleaning, thus realizing the cleaning cycle.

[0022] 6. As a new type of cleaning device for grinding and polishing plates for water mist polishing, the present invention has the remarkable characteristics of simple structure, high reliability, easy maintenance and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0024] Figure 2 It is the structural diagram of the immersion and dissolution unit.

[0025] Figure 3 yes Figure 2 A-direction view.

[0026] Figure 4 This is the structural diagram of the mechanical cleaning unit.

[0027] Figure 5 This is the B-direction view of the cleaning head.

[0028] Figure 6 This is the structural diagram of the air shower drying unit.

[0029] Figure 7 yes Figure 6 C-direction view.

[0030] Figure 8 It is a structural diagram of a multi-joint robotic arm and a vacuum suction cup assembly.

[0031] Fig. 9 This is the D-direction view of the vacuum suction cup assembly.

[0032] In the figure: 1. control panel; 2. control port; 3. control circuit; 4. multi-joint robot arm; 5. gantry; 6. linear motion module; 7. diffusion chamber; 8. blower; 9. drive motor; 10. polishing plate; 11. electronic control system; 12. storage rack; 13. water mist polishing device; 14. immersion tank; 15. electric control valve; 16. drainage trough; 17. cleaning head; 18. rotary joint; 19. support arm; 20. cleaning motor; 21. hydraulic cylinder; 22. mechanical turntable; 23. base A; 24. load-bearing bracket A; 25. driven pulley; 26. transmission belt; 27. driving pulley; 28. soft wiping cloth; 29. ​​water spray micropore; 30. bearing seat; 31. screw rod; 32. slide; 33. gantry slide; 34. base B; 35. air shower nozzle; 36. load-bearing bracket B; 37. vacuum suction cup assembly. DETAILED DESCRIPTION

[0033] The specific implementation of the present invention is described in detail below in conjunction with the technical solution and the accompanying drawings. Figure 1-9 As shown, an automatic online circulation cleaning device for a grinding and polishing plate for water mist polishing comprises an immersion and dissolution unit, a mechanical cleaning unit, an air shower drying unit, a grabbing and transporting unit, an electric control unit 11 and a storage rack 12; the grabbing and transporting unit is fixedly installed near the water mist polishing device 13, the immersion and dissolution unit, the mechanical cleaning unit, the air shower drying unit and the storage rack 12 are installed around the grabbing and transporting unit, and the electric control unit 11 is respectively connected to the immersion and dissolution unit, the mechanical cleaning unit and the air shower drying unit through a control circuit 3;

[0034] The mechanical cleaning unit comprises a base A 23, a drainage trough 16, a load-bearing bracket A 24, a cleaning motor 20, a support arm 19, a mechanical turntable 22, a hydraulic cylinder 21, a driving pulley 27, a driven pulley 25, a transmission belt 26, a rotary joint 18 and a cleaning head 17; the base A 23 is located at the bottom of the mechanical cleaning unit; the mechanical turntable 22 and the drainage trough 16 are fixedly connected to the base A 23, and the mechanical turntable 22 is close to the drainage trough 16; the top surface of the mechanical turntable 22 is fixedly connected to the fixed end of the hydraulic cylinder 21; the hydraulic cylinder 2 The moving end is fixedly connected to the bottom surface of the support arm 19; the cleaning motor 20 and the rotary joint 18 are installed on the support arm 19; the driving pulley 27 is fixedly connected to the output shaft of the cleaning motor 20; the rotating end of the rotary joint 18 is fixedly connected to the driven pulley 25 and the cleaning head 17 from top to bottom; the driving pulley 27 and the driven pulley 25 are installed with a transmission belt 26; the bottom surface of the cleaning head 17 is provided with water spray microholes 29 and a soft wiping cloth 28; the load-bearing bracket A 24 is fixedly installed on the drainage groove 16; the top surface of the load-bearing bracket A 24 is used to place the polishing plate 10;

[0035] The air shower drying unit comprises a base B 34, a blower 8, a diffusion chamber 7, a linear motion module 6, a drive motor 9, a gantry slide 33, a gantry 5, an air shower nozzle 35 and a load-bearing bracket B 36; the base B 34 is located at the bottom of the air shower drying unit; the load-bearing bracket B 36 is fixedly mounted on the base B 34 for placing the polishing plate 10; the gantry slide 33 has two, which are mounted side by side on the left and right sides of the base B 34, and the gantry slide 33 is slidably connected to the base B 34; the two columns of the gantry 5 are respectively mounted on the two gantry slides 33; the linear motion module 6 is mounted on the crossbeam of the gantry 5; the drive motor 9 is mounted at the end of the linear motion module 6; the diffusion chamber 7 is mounted on the slide 32 of the linear motion module 6; a plurality of air shower nozzles 35 are mounted at the bottom of the diffusion chamber 7; the air outlet of the air shower nozzle 35 is directly facing the polishing plate 10 located below it;

[0036] The grabbing and transporting unit includes a multi-joint robot arm 4 and a vacuum suction cup assembly 37; the multi-joint robot arm 4 is fixedly installed near the water mist polishing device; a vacuum suction cup assembly 37 is installed at the end of the multi-joint robot arm 4 for picking up and placing the polishing plate 10.

[0037] Furthermore, the linear motion module 6 includes a screw 31, a slide 32 and a bearing seat 30; there are two bearing seats 30, which are respectively located at the two ends of the screw 31; the screw 31 passes through the slide 32 to form a screw slide moving pair; when the screw 31 rotates, the slide 32 performs linear feed motion along the screw 31.

[0038] Furthermore, the soaking and dissolving unit, the mechanical cleaning unit, and the air shower drying unit are respectively located at three o'clock, twelve o'clock, and nine o'clock directions around the grabbing and transporting unit.

[0039] Furthermore, the soaking and dissolving unit includes a soaking tank 14 and an electric control valve 15; the electric control valve 15 is installed on the side wall of the soaking tank 14 near the bottom.

[0040] Furthermore, the storage rack 12 is used to place the cleaned grinding and polishing plates 10 to prepare for the rapid replacement of the grinding and polishing plates 10 on the water mist polishing device 13.

[0041] Furthermore, the electronic control unit includes an electronic control system 11 and a control circuit 3; the electronic control system 11 is composed of a control panel 1 located at the top and a control port 2 located at the bottom; the control port 2 is respectively connected to the electric control valve 15, the cleaning motor 20, the mechanical turntable 22, the hydraulic cylinder 21, the blower 8, the drive motor 9, the gantry slide 33 and the multi-joint robotic arm 4 through the control circuit 3.

[0042] The working method of the present invention is as follows:

[0043] When the polishing plate 10 needs to be replaced, the cleaning program built into the electronic control system 11 is selected through the control panel 1; the control circuit 3 connected to the control port 2 drives each actuator to start operating according to the predetermined parameters; the specific steps are as follows:

[0044] A. Take the polishing plate 10 to be replaced from the water mist polishing device 13 by the grabbing and transporting unit and put it into the soaking tank 14 of the soaking and dissolving unit;

[0045] B. Pick up the clean polishing plate 10 on the storage rack 12 through the grabbing and transporting unit and place it on the water mist polishing device 13 to start a new round of water mist polishing operation; during this period, close the electric control valve 15 and fill the soaking tank 14 with pure water, and soften and precipitate the dissolved products in the surface microstructure of the polishing plate 10 through soaking and dissolving; after the soaking and dissolving operation is completed, pick up the polishing plate 10 in the soaking tank 14 through the grabbing and transporting unit and place it on the load-bearing bracket A 24 in the mechanical cleaning unit; during this period, open the electric control valve 15 to discharge the soaking waste liquid in the soaking tank 14, and close the electric control valve 15 after it is completely drained;

[0046] C. The position of the cleaning head 17 in the horizontal plane is changed by the mechanical turntable 22, so that the cleaning head 17 is located directly above the polishing plate 10 to be cleaned; the position of the cleaning head 17 in the vertical plane is changed by the hydraulic cylinder 21, so that the soft wiping cloth 28 on the cleaning head 17 is in contact with the polishing plate 10 to be cleaned; then, the cleaning motor 20 is turned on, and its power is transmitted to the cleaning head 17 through the driving pulley 27, the driven pulley 25 and the transmission belt 26, so that the cleaning head 17 rotates; the cleaning water is passed through the rotary joint 18 After reaching the cleaning head 17, the water is sprayed toward the polishing plate 10 through the water spray micropores 29 distributed on the cleaning head 17; the dissolved products in the surface microstructure of the polishing plate 10 are effectively removed under the cooperation of the flushing and dissolving effect of the water spray micropores 29 and the mechanical effect of the soft wiping cloth 28; during this period, the waste liquid is collected and discharged through the drainage trough 16; after the mechanical cleaning operation is completed, the polishing plate 10 located on the load-bearing bracket A 24 is picked up by the grabbing and transporting unit and placed on the load-bearing bracket B 36 in the air shower drying unit;

[0047] D. The air in the environment is compressed by the blower 8 and transported to the diffusion chamber 7, and then sprayed to the surface of the polishing plate 10 through the air shower nozzle 35 at the bottom of the diffusion chamber 7, so as to quickly dry the polishing plate area directly below the air shower nozzle 35; at the same time, the electronic control system 38 drives the gantry slide 33 and the linear motion module 6 to perform trajectory movement, so as to ensure that the air shower nozzle 35 air-dries the entire surface of the polishing plate 10; after the air shower drying operation is completed, the cleaned polishing plate 10 is taken out from the load-bearing bracket B 36 and placed on the storage rack 12; when the water mist polishing is performed to the point where the polishing plate 10 needs to be replaced, the polishing plate 10 to be replaced is taken out from the water mist polishing device 13 by the grabbing and transporting unit and then placed in the soaking tank 14 of the soaking and dissolving unit;

[0048] E. The cleaning polishing plate 10 on the storage rack 12 is picked up by the grabbing and transporting unit and placed on the water mist polishing device 13 to start a new round of water mist polishing operation; the automatic online circulation cleaning of the polishing plate 10 is realized.

[0049] The present invention is not limited to this embodiment, and any equivalent concepts or changes within the technical scope disclosed by the present invention are included in the protection scope of the present invention.

Claims

1. An automatic online circulation cleaning device for a grinding and polishing plate for water mist polishing, characterized in that: It comprises a soaking and dissolving unit, a mechanical cleaning unit, an air shower drying unit, a grabbing and transporting unit, an electric control unit and a storage rack (12); the grabbing and transporting unit is fixedly installed near a water mist polishing device (13); the soaking and dissolving unit, the mechanical cleaning unit, the air shower drying unit and the storage rack (12) are installed around the soaking and dissolving unit; and the electric control unit is respectively connected to the soaking and dissolving unit, the mechanical cleaning unit and the air shower drying unit via a control circuit (3); The mechanical cleaning unit comprises a base A (23), a drainage trough (16), a load-bearing bracket A (24), a cleaning motor (20), a support arm (19), a mechanical turntable (22), a hydraulic cylinder (21), a driving pulley (27), a driven pulley (25), a transmission belt (26), a rotary joint (18) and a cleaning head (17); the base A (23) is located at the bottom of the mechanical cleaning unit; the mechanical turntable (22) and the drainage trough (16) are fixedly connected to the base A (23), and the mechanical turntable (22) is close to the drainage trough (16); the top surface of the mechanical turntable (22) is fixedly connected to the fixed end of the hydraulic cylinder (21); the hydraulic cylinder ( 21) The moving end is fixedly connected to the bottom surface of the support arm (19); the cleaning motor (20) and the rotary joint (18) are installed on the support arm (19); the driving pulley (27) is fixedly connected to the output shaft of the cleaning motor (20); the rotating end of the rotary joint (18) is fixedly connected to the driven pulley (25) and the cleaning head (17) from top to bottom; a transmission belt (26) is installed between the driving pulley (27) and the driven pulley (25); a water spraying micro hole (29) and a soft wiping cloth (28) are arranged on the bottom surface of the cleaning head (17); the load-bearing bracket A (24) is fixedly installed on the drainage groove (16); the top surface of the load-bearing bracket A (24) is used to place the polishing plate (10); The air shower drying unit comprises a base B (34), a blower (8), a diffusion chamber (7), a linear motion module (6), a drive motor (9), a gantry slide (33), a gantry (5), an air shower nozzle (35) and a load-bearing bracket B (36); the base B (34) is located at the bottom of the air shower drying unit; the load-bearing bracket B (36) is fixedly mounted on the base B (34) for placing a polishing plate (10); the gantry slide (33) has two left and right side brackets mounted side by side on the base B (34); On the right side, the gantry slide (33) is slidably connected to the base B (34); the two uprights of the gantry (5) are respectively mounted on the two gantry slides (33); a linear motion module (6) is mounted on the crossbeam of the gantry (5); a driving motor (9) is mounted at the end of the linear motion module (6); a diffusion chamber (7) is mounted on the slide (32) of the linear motion module (6); a plurality of air shower nozzles (35) are mounted at the bottom of the diffusion chamber (7); the air outlet of the air shower nozzle (35) is directly facing the polishing plate (10) located below it; The grabbing and transporting unit comprises a multi-joint mechanical arm (4) and a vacuum suction cup assembly (37); the multi-joint mechanical arm (4) is fixedly installed near the water mist polishing device (13); a vacuum suction cup assembly (37) is installed at the end of the multi-joint mechanical arm (4) for picking up and placing the polishing plate (10).

2. The automatic online circulation cleaning device for grinding and polishing plates for water mist polishing according to claim 1, characterized in that: The linear motion module (6) comprises a screw (31), a slide (32) and a bearing seat (30); there are two bearing seats (30), which are respectively located at the two ends of the screw (31); the screw (31) passes through the slide (32) to form a screw (31) and slide (32) moving pair; when the screw (31) rotates, the slide (32) performs linear feed motion along the screw (31).

3. The automatic online circulation cleaning device for grinding and polishing plates for water mist polishing according to claim 1 is characterized in that: The soaking and dissolving unit, the mechanical cleaning unit, and the air shower drying unit are respectively located at the three o'clock, twelve o'clock, and nine o'clock directions around the grabbing and transporting unit.

4. The automatic online circulation cleaning device for grinding and polishing plates for water mist polishing according to claim 1, characterized in that: The soaking and dissolving unit comprises a soaking tank (14) and an electric control valve (15); the electric control valve (15) is installed on the side wall of the soaking tank (14) near the bottom.

5. The automatic online circulation cleaning device for grinding and polishing plates for water mist polishing according to claim 1 is characterized in that: The storage rack (12) is used to place the cleaned grinding and polishing plates (10) to prepare for the rapid replacement of the grinding and polishing plates (10) on the water mist polishing device (13).

6. The automatic online circulation cleaning device for grinding and polishing plates for water mist polishing according to claim 1, characterized in that: The electronic control unit comprises an electronic control system (11) and a control circuit (3); the electronic control system (11) is composed of a control panel (1) located at the top and a control port (2) located at the bottom; the control port (2) is respectively connected to an electric control valve (15), a cleaning motor (20), a mechanical turntable (22), a hydraulic cylinder (21), a blower (8), a drive motor (9), a gantry slide (33) and a multi-joint mechanical arm (4) through a control circuit (3).

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