A cleaning method for a main valve piston of an electromagnetic valve of a shock absorber

Abstract

The present application relates to the technical field of electromagnetic valve parts production, in particular to a shock absorber electromagnetic valve main valve piston cleaning method, comprising a cleaning device for cleaning the shock absorber electromagnetic valve main valve piston, the cleaning device comprises a fixed base, a filtrate tank and a cleaning tank, the top of the fixed base is fixedly provided with the filtrate tank, and the top of the filtrate tank is rotatably provided with the cleaning tank. The present application solves the problem of iron filings sticking in cross holes and small bottom holes through the synergistic cleaning mechanism of spraying, 360° self-rotation and ultrasonic vibration, combined with the positioning attitude of the small head of the part facing down. The cleaning liquid realizes all-round coverage through the alternately arranged liquid guide frame and cleaning nozzle, the centrifugal force generated by the self-rotation of the cleaning basket cooperates with the high-frequency vibration of the ultrasonic wave, which promotes the rapid loosening and separation of impurities in the hole, and then the cleaning liquid containing impurities is introduced into the filtrate tank through the rotating sleeve for filtration, thereby ensuring the cleanliness of the surface and hole of the part from the source and meeting the drawing requirements.

Description

Technical Field

[0001] This invention relates to the field of electromagnetic valve parts manufacturing technology, specifically a cleaning method for the main valve piston of a shock absorber electromagnetic valve. Background Technology

[0002] The main valve piston of the shock absorber solenoid valve is the core component of the shock absorber control system. Its structure has typical stepped shaft characteristics and integrates inclined holes, main holes and bottom holes. The channels are interconnected to form a cross hole structure. This structure has extremely high requirements for the cleanliness of the parts. Iron filings and other impurities remaining in the channels can directly cause oil passage blockage, which in turn leads to component failure and poses a safety risk to customers.

[0003] In existing cleaning processes, due to the blocking effect of the cross-holes and the limitation of the small aperture, iron filings are easily stuck in the channels and difficult to be discharged, resulting in the number of impurity particles larger than 600 failing to meet the drawing requirements. At the same time, the traditional cleaning basket uses a wire mesh structure, which has a large contact area with the parts, low space utilization, and requires auxiliary tools for loading and unloading parts, making the operation cumbersome and labor-intensive. In addition, there is a lack of effective motion coordination mechanism during the cleaning process, the cleaning method is fixed, the impurity removal effect is poor, and the filtration system is prone to clogging due to impurity accumulation, affecting the cleaning fluid circulation efficiency and cleaning stability. The method of manually removing impurities from the holes further reduces production efficiency and is difficult to adapt to the needs of large-scale production. Summary of the Invention

[0004] The purpose of this invention is to provide a cleaning method for the main valve piston of a shock absorber solenoid valve, in order to solve the aforementioned technical defects.

[0005] To achieve the above effects, the technical solution adopted by the present invention is as follows: a cleaning method for the main valve piston of a shock absorber solenoid valve, comprising the following steps: Step 1: Clean the main valve piston of the shock absorber solenoid valve using a cleaning device. Insert the bottom end of the main valve piston into the limiting hole of the material block in the cleaning basket. Limit the material block radially by the limiting post. Stack multiple cleaning baskets by matching the positioning post with the positioning hole. Step 2: Start the connection servo cylinder, adjust the servo cylinder and limit servo cylinder, fix the stacked cleaning baskets through the connecting components, close the top cover of the cleaning box and seal it; Step 3: The cleaning solution is sprayed through the cleaning nozzles via the inlet rack, delivery rack, and guide rack. The rotary servo motor is started to drive the cleaning basket to rotate 360°. At the same time, the ultrasonic transducer and transducer are started. The cleaning solution is introduced into the filter box for filtration through the rotating sleeve. Step 4: Use a filter screen to filter impurities in the cleaning solution. Drive the scraper frame downwards according to a preset cycle using a scraper servo electric cylinder. In conjunction with the scraper servo motor, drive the scraper frame to rotate and clean the dirt. The rotating sleeve synchronously drives the cleaning box to rotate. Step 5: Stop supplying cleaning fluid, spray high-pressure air knife through the air inlet frame and air guide frame and dry nozzle, and keep the cleaning basket rotating to dry for 5 minutes; Step 6: Open the drain pipe to discharge the filtered cleaning liquid, move the upper closed baffle to remove the movable frame to clean impurities, reset the movable frame and seal the discharge port; Step 7: Unlock the connection components, open the top cover of the cleaning tank, remove the cleaning basket and take out the main valve piston, and check the cleanliness of its surface and channels. Unqualified products should be cleaned again.

[0006] Preferably, the cleaning device includes a fixed base, a filtrate tank, and a cleaning tank. The filtrate tank is fixedly mounted on the top of the fixed base, and the cleaning tank is rotatably mounted on the top of the filtrate tank. The cleaning tank consists of a cleaning tank body, a cleaning tank top cover, and a cleaning tank base frame. The cleaning tank top cover is rotatably mounted on the top of the cleaning tank body via a hinge, and the cleaning tank base frame is fixedly mounted on the bottom of the cleaning tank body. A rotating sleeve is fixedly mounted on the bottom of the cleaning tank base frame, and the bottom end of the rotating sleeve is rotatably connected to the top of the filtrate tank.

[0007] Preferably, a liquid delivery rack is fixedly installed on the top of the cleaning tank cover, and a plurality of liquid guide racks are fixedly installed on the bottom of the cleaning tank cover. The interior of the liquid delivery rack is connected to the interior of the plurality of liquid guide racks. A plurality of cleaning nozzles are fixedly installed at the bottom of each of the plurality of liquid guide racks, and the interior of each of the plurality of cleaning nozzles is connected to the interior of the liquid guide racks. A liquid inlet rack is also rotatably installed on the outer circumference of the liquid delivery rack, and the interior of the liquid inlet rack is rotatably and sealingly connected to the interior of the liquid delivery rack. A liquid delivery pipe is also fixedly installed on one side of the liquid inlet rack.

[0008] Preferably, an air inlet frame is fixedly installed on the top of the cleaning tank cover and inside the liquid delivery frame, and an air delivery pipe is rotatably installed on the top of the air inlet frame. Several air guide frames are fixedly installed at the bottom of the cleaning tank cover, and several drying nozzles are fixedly installed at the bottom of each of the several air guide frames, wherein the interior of each of the several drying nozzles is connected to the interior of the air guide frame.

[0009] Preferably, the main body of the cleaning tank is provided with a plurality of cleaning baskets inside, and the plurality of cleaning baskets are stacked; both sides of the main body of the cleaning tank are fixedly provided with connecting servo cylinders, and one end of the drive end of each of the two connecting servo cylinders is provided with a connecting component, and the two connecting components are respectively movably connected to the two sides of the cleaning basket.

[0010] Preferably, the cleaning basket has positioning holes on all four sides, and each of the four positioning holes is threaded with a positioning post. Between the upper and lower cleaning baskets, the tops of the four positioning posts at the bottom extend into the four positioning holes at the top. The cleaning basket has several material clamping blocks fixed inside by connecting bolts, and each of the material clamping blocks has several limiting holes inside. Three limiting posts are also fixed around the limiting holes. A main valve piston is placed inside the limiting holes, and the bottom end of the main valve piston extends into the limiting holes. The top end of the main valve piston is above the material clamping blocks.

[0011] Preferably, the connecting assembly includes a connecting frame and a connecting block. A rotating frame is fixedly mounted on one end of the drive shaft of the connecting servo cylinder, and a rotary servo motor is fixedly mounted inside the rotating frame. The output shaft of the rotary servo motor is fixedly mounted on the connecting frame. Adjusting servo cylinders are fixedly mounted on both the upper and lower sides inside the connecting frame, and adjusting blocks are fixedly mounted on one end of the drive shaft of each adjusting servo cylinder. The two adjusting blocks are slidably positioned on the upper and lower sides inside the connecting frame, and a connecting block is fixedly mounted on one side of each adjusting block. Limiting servo cylinders are fixedly mounted on both sides inside the two connecting blocks, and limiting blocks are fixedly mounted on one end of the drive shaft of each limiting servo cylinder. Connecting grooves that mate with the connecting blocks are provided on both sides of the cleaning basket, and limiting grooves that mate with the limiting blocks are provided on both sides of the connecting grooves.

[0012] Preferably, a scraping servo motor is fixedly installed on one side inside the filtrate tank, and the top end of the output shaft of the scraping servo motor extends to the top of the filtrate tank. A transmission wheel one is fixedly installed on the top end of the output shaft of the scraping servo motor, and a transmission wheel two is fixedly installed on the bottom of the surface of the rotating sleeve. The surfaces of the transmission wheel one and the transmission wheel two are connected by a synchronous belt. A mounting bracket is fixedly installed at the bottom inside the rotating sleeve, and a scraping servo electric cylinder is fixedly installed at the bottom of the mounting bracket. A scraping frame is fixedly installed at the bottom end of the drive shaft of the scraping servo electric cylinder.

[0013] Preferably, a discharge port is provided on one side of the filtrate tank, and a movable frame is slidably arranged inside the discharge port. One side of the movable frame contacts one side of the inner wall of the filtrate tank, and a filter screen is fixedly arranged inside the movable frame. A sealing baffle is movably arranged above the inside of the discharge port. Three miniature electric cylinders are fixedly arranged on the top of the filtrate tank, and the bottom ends of the drive shafts of the three miniature electric cylinders are all fixedly connected to the top of the sealing baffle. A sealing strip is provided at the bottom of the sealing baffle, and a sealing groove that cooperates with the sealing strip is provided at the top of the movable frame.

[0014] Preferably, support blocks are fixedly provided on both sides of the bottom of the cleaning tank base, and support balls are rotatably provided on the bottom of the two support blocks. A ball groove is provided on the top of the filtrate tank, and the bottom of the two support balls is slidably connected to the inside of the ball groove.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This invention effectively solves the problem of iron filings getting stuck in cross holes and tiny bottom holes by using a synergistic cleaning mechanism of spraying, 360° rotation, and ultrasonic vibration, combined with the positioning posture of the parts with the small end facing down. The cleaning fluid is fully covered by alternating liquid guides and cleaning nozzles. The centrifugal force generated by the rotation of the cleaning basket and the high-frequency ultrasonic vibration work together to quickly loosen and remove impurities in the channels. Then, the cleaning fluid containing impurities is introduced into the filter tank for filtration through a rotating sleeve, ensuring the cleanliness of the part surface and channels from the source, meeting the drawing requirements.

[0016] 2. The stackable design and optimized positioning structure of the cleaning baskets significantly improve operational convenience and space utilization. The stable stacking of multiple cleaning baskets is achieved through the cooperation of positioning posts and holes. The limiting holes and posts of the clamping block work together to allow the main valve piston to achieve vertical positioning without additional clamps. Furthermore, it can rotate and sway slightly with the cleaning baskets, simplifying loading and unloading operations, reducing manual intervention, and significantly increasing the number of parts that can be cleaned per cycle. This improves the uptime of the cleaning equipment and adapts to the needs of large-scale production.

[0017] 3. This invention ensures the stability and continuity of the cleaning process through the design of the filtration system and the fixed control of cleaning parameters. The filter screen in the filtrate tank effectively intercepts impurities, and the scraper servo cylinder drives the scraper to periodically clean the impurities accumulated on the surface of the filter screen, preventing filter screen blockage and ensuring smooth circulation of the cleaning solution. At the same time, parameters such as rotation speed, ultrasonic power, and spraying time set by the PLC can be precisely controlled. Combined with the stable fixation of the cleaning basket by the connecting components, the cleaning quality is not affected by human operation, significantly reducing the defect rate. Moreover, the overall structure of the device adopts mature mechanical components and transmission methods, which are highly reliable, easy to maintain, and have good practicality and promotional value. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the cleaning device structure according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the cleaning tank top cover, air guide frame, and liquid guide frame according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the internal structure of the cleaning tank body according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of transmission wheel one and transmission wheel two according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the movable frame and filter structure according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the scraping servo electric cylinder and scraping frame structure according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the cleaning basket and material clamping block structure according to an embodiment of the present invention; Figure 8 This is an embodiment of the present invention. Figure 7 Enlarged view of the structure at point A in the middle; Figure 9 This is a schematic diagram of the cleaning basket and main valve piston structure according to an embodiment of the present invention; Figure 10 This is a schematic diagram of the cleaning basket and positioning column structure according to an embodiment of the present invention; Figure 11 This is a schematic diagram of the material block and main valve piston structure in an embodiment of the present invention.

[0020] In the diagram, 1. Fixed base; 2. Filtration tank; 3. Cleaning tank; 4. Cleaning tank body; 5. Cleaning tank top cover; 6. Cleaning tank base frame; 7. Air guide frame; 8. Drying nozzle; 9. Liquid guide frame; 10. Cleaning nozzle; 11. Liquid inlet frame; 12. Liquid delivery frame; 13. Air inlet frame; 14. Cleaning basket; 15. Connecting assembly; 16. Connecting servo cylinder; 17. Connecting frame; 18. Rotating frame; 19. Adjusting servo cylinder; 20. Adjusting block; 21. Connecting block; 22. Limiting block; 23. Connecting groove; 24. Limiting groove; 25. Limiting servo cylinder. 26. Material clamping block; 27. Connecting cap; 28. Positioning pin; 29. ​​Connecting bolt; 30. Main valve piston; 31. Positioning hole; 32. Limiting pin; 33. Limiting hole; 34. Rotating sleeve; 35. Discharge port; 36. Movable frame; 37. Filter screen; 38. Sealing baffle; 39. Miniature electric cylinder; 40. Sealing groove; 41. Sealing strip; 42. Mounting bracket; 43. Scraper servo electric cylinder; 44. Scraper frame; 45. Scraper servo motor; 46. Transmission wheel one; 47. Transmission wheel two; 48. Support block; 49. Support ball; 51. Ball groove. Detailed Implementation

[0021] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0022] The embodiments of this invention mainly address the core problems of the shock absorber solenoid valve main valve piston having a stepped shaft structure and a cross-hole structure formed by oblique holes, main holes and micro bottom holes, which makes it easy for iron filings to get stuck in the holes during cleaning and the number of impurity particles above 600 is difficult to meet the cleanliness requirements. At the same time, it solves the technical problems of traditional cleaning baskets having low space utilization, cumbersome parts loading and unloading and high labor costs, poor impurity removal effect due to lack of effective motion coordination during the cleaning process, easy blockage of the filtration system due to impurity accumulation affecting the cleaning fluid circulation efficiency and cleaning stability, and low efficiency of manual cleaning of impurities in the holes, which is difficult to adapt to large-scale production. Example 1

[0023] Please see Figures 1 to 11 As shown, this embodiment discloses a method for cleaning the piston of the main valve of a shock absorber solenoid valve, including the following steps: Step 1: Clean the main valve piston using a cleaning device, inject the required cleaning solution into the liquid delivery pipe connected to the liquid inlet rack 11, and ensure that the air delivery pipe is connected to dry compressed air; set the cleaning parameters via PLC: the rotation speed of the cleaning basket 14 is 30 r / min, the ultrasonic power is 500W, the spraying time is 15 min, the drying time is 5 min, and the scraping cycle of the scraping servo electric cylinder 43 is 3 min / time; insert the movable frame 36 with the filter screen 37 into the discharge port 35 of the filtrate tank 2, and control the three micro electric cylinders 39 to drive the closing baffle 38 to move down, so that the sealing strip 41 at the bottom of the closing baffle 38 is embedded into the sealing groove 40 at the top of the movable frame 36, thereby sealing the discharge port 35.

[0024] Step 2: Insert the bottom end of the main valve piston 30 into the limiting hole 33 of the clamping block 26 inside the cleaning basket 14. Use the three limiting posts 32 around the limiting hole 33 to radially limit the top end of the main valve piston 30, ensuring that the top end of the main valve piston 30 protrudes from the clamping block 26 and is vertical. Take another cleaning basket 14 equipped with the main valve piston 30, align the top end of the positioning post 28 in the positioning hole 31 around the lower cleaning basket 14 with the positioning hole 31 of the upper cleaning basket 14, and slowly lower it to stack it. Repeat the operation to stack several cleaning baskets 14. Check whether the bottom end of the main valve piston 30 in the upper and lower adjacent cleaning baskets 14 is embedded in the limiting hole 33 of the lower cleaning basket 14, ensuring that the main valve piston 30 can rotate with the cleaning basket 14 and can swing a small distance without jamming.

[0025] Step 3: Activate the connecting servo cylinders 16 on both sides of the main body 4 of the cleaning tank to drive the rotating frame 18 to move closer to the side of the stacked cleaning baskets 14; control the two adjusting servo cylinders 19 inside the connecting frame 17 to push the adjusting block 20 out of the connecting frame 17 so that the upper and lower connecting blocks 21 are aligned with the connecting grooves 23 on the sides of the uppermost and lowermost cleaning baskets 14 respectively; continue to drive the connecting servo cylinders 16 to make the connecting blocks 21 fully embedded in the connecting grooves 23; activate the limiting servo cylinders 25 on both sides inside the connecting blocks 21 to push the limiting blocks 22 into the limiting grooves 24 in the connecting grooves 23 to fix the connecting frame 17 to the stacked cleaning baskets 14; rotate the top cover 5 of the cleaning tank to the closed state through the hinge to ensure that the top cover is sealed and fitted to the main body 4 of the cleaning tank to avoid splashing of cleaning fluid or leakage of air pressure.

[0026] Step 4: The cleaning fluid is introduced into the liquid delivery rack 12 through the liquid inlet rack 11. The cleaning fluid is then distributed to several alternately arranged liquid guide racks 9 through the liquid delivery rack 12, and finally sprayed onto the main valve piston 30 through the cleaning nozzles 10 at the bottom of the liquid guide rack 9 to achieve all-round spray coverage. The rotary servo motor inside the rotary rack 18 is started to drive the connecting rack 17 to rotate the stacked cleaning baskets 14 360°. At the same time, the ultrasonic transducer and transducer inside the connecting rack 17 are started to generate high-frequency vibration. Combined with the centrifugal force generated by the rotation of the cleaning baskets 14, the iron filings in the oblique holes, main holes and bottom holes of the main valve piston 30 are loosened and removed. The automatic control valve inside the cleaning tank base 6 is opened, and the used cleaning fluid flows into the rotary sleeve 34 through the cleaning tank base 6 and is then introduced into the filter tank 2 for filtration through the rotary sleeve 34.

[0027] Step 5: The cleaning solution in the filtrate tank 2 is filtered through the filter screen 37 in the movable frame 36. Impurities are intercepted on the upper surface of the filter screen 37, and the filtered cleaning solution is temporarily stored at the bottom of the filtrate tank 2. The scraping servo cylinder 43 is started according to the preset cycle, driving the scraping frame 44 to move downwards until it contacts the upper surface of the filter screen 37. The scraping servo motor 45 on one side of the filtrate tank 2 is started, which drives the rotating sleeve 34 to rotate through the first transmission wheel 46, the synchronous belt and the second transmission wheel 47, thereby driving the scraping frame 44 to rotate and scrape off the impurities on the surface of the filter screen 37 to ensure the filtration effect. When the rotating sleeve 34 rotates, it drives the cleaning tank 3 to rotate synchronously. The centrifugal force is used to make the cleaning solution flow quickly through the surface and channels of the main valve piston 30, further carrying away the loose impurities.

[0028] Step 6: After the cleaning time is over, close the liquid inlet channel and stop the supply of cleaning fluid; start the air supply pipe, and dry compressed air is distributed to several air guide frames 7 through the air inlet frame 13. High-pressure air is sprayed onto the main valve piston 30 through the drying nozzle 8 at the bottom of the air guide frame 7; at the same time, keep the cleaning basket 14 rotating to ensure that the compressed air is evenly blown on the surface and channels of the main valve piston 30 to dry the residual cleaning fluid. The drying time lasts for 5 minutes.

[0029] Step 7: Open the drain valve on one side of the fixed base 1 to drain the filtered cleaning liquid from the filter tank 2; start the micro electric cylinder 39 to drive the closed baffle 38 to move upward, pull out the movable frame 36, clean the iron filings and other impurities collected on the surface of the filter screen 37, and after cleaning, reset the movable frame 36 and reseal the discharge port 35.

[0030] Step 8: Start the limit servo cylinder 25 to drive the limit block 22 out of the limit groove 24; control the adjustment servo cylinder 19 to retract the adjustment block 20 into the connecting frame 17; drive the connecting servo cylinder 16 to move the rotating frame 18 away from the cleaning basket 14; open the top cover 5 of the cleaning box; manually remove the stacked cleaning baskets 14 one by one, and take the main valve piston 30 out of the limit hole 33 of the jamming block 26; check the cleanliness of the surface and channel of the main valve piston 30, and confirm that the number of impurity particles above 600 meets the requirements of the drawing. Unqualified products need to be cleaned again.

[0031] Specifically, the cleaning device includes a fixed base 1, a filtrate tank 2, and a cleaning tank 3. The filtrate tank 2 is fixedly mounted on the top of the fixed base 1, and the cleaning tank 3 is rotatably mounted on the top of the filtrate tank 2. The cleaning tank 3 consists of a cleaning tank body 4, a cleaning tank top cover 5, and a cleaning tank base frame 6. The cleaning tank top cover 5 is rotatably mounted on the top of the cleaning tank body 4 via a hinge, and the cleaning tank base frame 6 is fixedly mounted on the bottom of the cleaning tank body 4. A rotating sleeve 34 is fixedly mounted on the bottom of the cleaning tank base frame 6, and the bottom end of the rotating sleeve 34 is rotatably connected to the top of the filtrate tank 2. The top end of the rotating sleeve 34 communicates with the interior of the cleaning tank base frame 6, and an automatic control valve is installed at the top end of the interior of the cleaning tank base frame 6. The cleaning liquid inside the cleaning tank base frame 6 is sent into the interior of the filtrate tank 2 for filtration through the rotating sleeve 34. A drain pipe is also provided on one side of the fixed base 1, and one end of the drain pipe communicates with the interior of the filtrate tank 2. The filtered cleaning liquid inside the filtrate tank 2 is discharged through the drain pipe.

[0032] Furthermore, a liquid delivery rack 12 is fixedly installed on the top of the cleaning tank top cover 5, and several liquid guide racks 9 are fixedly installed on the bottom of the cleaning tank top cover 5. The interior of the liquid delivery rack 12 is connected to the interior of the several liquid guide racks 9. Several cleaning nozzles 10 are fixedly installed at the bottom of each of the several liquid guide racks 9, and the interior of each of the several cleaning nozzles 10 is connected to the interior of the liquid guide racks 9. An inlet rack 11 is also rotatably installed on the outer circumference of the liquid delivery rack 12, and the interior of the inlet rack 11 is rotatably sealed to the interior of the liquid delivery rack 12. A liquid delivery pipe is also fixedly installed on one side of the inlet rack 11. An air inlet rack 13 is also fixedly installed on the top of the cleaning tank top cover 5 and inside the liquid delivery rack 12. An air delivery pipe is rotatably installed on the top of the air inlet rack 13. Several air guide racks 7 are fixedly installed at the bottom of the cleaning tank top cover 5, and several drying nozzles 8 are fixedly installed at the bottom of each of the several air guide racks 7. The interior of each of the several drying nozzles 8 is connected to the interior of the air guide rack 7.

[0033] It should be noted that several liquid guide frames 9 and several air guide frames 7 are alternately arranged on the top of the inner wall of the cleaning tank top cover 5. During the cleaning operation of the main valve piston, the main valve piston is first flushed through the cleaning nozzles 10 at the bottom of the liquid guide frames 9, and then... Furthermore, the main body 4 of the cleaning tank is equipped with several cleaning baskets 14, which are stacked together. Two servo cylinders 16 are fixedly installed on both sides of the main body 4, and each of the two servo cylinders 16 has a connecting component 15 at one end of its drive end. The two connecting components 15 are movably connected to both sides of the cleaning baskets 14. The two connecting components 15 limit the connection between the two sides of the cleaning baskets 14. Simultaneously, when cleaning the solenoid valve piston, the cleaning baskets 14 are controlled to rotate inside the cleaning tank 3, and in conjunction with the cleaning liquid sprayed from above, multi-angle cleaning of the solenoid valve piston is achieved.

[0034] Furthermore, each of the four sides of the interior of the cleaning basket 14 is provided with positioning holes 31, and each of the four positioning holes 31 is threaded with a positioning post 28. Between the upper and lower cleaning baskets 14, the tops of the four positioning posts 28 located at the bottom extend into the four positioning holes 31 located at the top. Inside the cleaning basket 14, a number of material clamping blocks 26 are fixedly installed by connecting bolts 29, and each of the material clamping blocks 26 is provided with a number of limiting holes 33. Three limiting posts 32 are also fixedly installed around the limiting holes 33. The main valve piston 30 is placed inside the limiting holes 33, and the bottom end of the main valve piston 30 extends into the... Inside the limiting hole 33, the top of the main valve piston 30 is above the clamping block 26. It should be noted that between the upper and lower cleaning baskets 14, the bottom of the main valve piston 30 is inside the limiting hole 33 of the clamping block 26 in the lower cleaning basket 14, and the top of the main valve piston 30 is in contact with the bottom of the limiting post 32 in the upper cleaning basket 14. The top of the main valve piston 30 is limited by the three limiting posts 32, and the bottom of the main valve piston 30 is limited by the inside of the limiting hole 33, so as to ensure the limiting stability of the main valve piston during the cleaning process. The main valve piston can also swing a small distance as the cleaning basket 14 rotates.

[0035] Furthermore, to achieve rotational cleaning of the main valve piston, connecting assemblies 15 are provided on both sides of the cleaning basket 14. The specific structure of the connecting assembly 15 on the left side is described below. The connecting assembly 15 includes a connecting frame 17 and a connecting block 21. A rotating frame 18 is fixedly mounted on one end of the drive shaft of the connecting servo cylinder 16, and a rotary servo motor is fixedly mounted inside the rotating frame 18. The output shaft of the rotary servo motor is fixedly mounted on the connecting frame 17. Adjusting servo cylinders 19 are fixedly mounted on both the upper and lower sides inside the connecting frame 17, and the two adjusting servo cylinders... One end of the drive shaft of 19 is fixedly provided with an adjusting block 20. The two adjusting blocks 20 are respectively located inside the connecting frame 17 and are slidably arranged above and below. One side of each of the two adjusting blocks 20 is fixedly provided with a connecting block 21. Both sides of the two connecting blocks 21 are fixedly provided with limit servo cylinders 25. One end of the drive shaft of each of the two limit servo cylinders 25 is fixedly provided with a limit block 22. Both sides of the cleaning basket 14 are provided with connecting grooves 23 that cooperate with the connecting blocks 21. Both sides of the connecting grooves 23 are provided with limit grooves 24 that cooperate with the limit blocks 22.

[0036] It should be noted that an ultrasonic transducer and a main valve piston are also installed inside the connecting frame 17. A main valve piston is placed in several limiting holes 33 inside the cleaning basket 14. With another set of cleaning baskets 14 stacked on top, the main valve piston is limited within the cleaning basket 14. After stacking several cleaning baskets 14, based on the positions of the top and bottom two cleaning baskets 14, the drive ends of two upper and lower adjusting servo cylinders 19 control two adjusting blocks 20 to extend from inside the connecting frame 17, so that the upper and lower connecting blocks 21 are respectively positioned on one side of the top and bottom cleaning baskets 14. This is achieved by connecting the servo cylinders... The drive end of cylinder 16 controls the rotating frame 18 to move closer to the side of the cleaning basket 14 until the upper and lower connecting blocks 21 enter the connecting grooves 23 on the side of the uppermost and lowermost cleaning baskets 14 respectively. Then, by controlling the limit servo electric cylinders 25 on both sides inside the connecting block 21, the two limit blocks 22 are respectively driven to insert into the two limit grooves 24 inside the connecting groove 23, thereby connecting the connecting frame 17 and the stacked cleaning baskets 14. When cleaning the main valve piston, the output shaft of the rotating servo motor inside the rotating frame 18 controls the connecting frame 17 to rotate, thereby driving the stacked cleaning baskets 14 to rotate. Example 2

[0037] Specifically, a scraping servo motor 45 is fixedly installed on one side inside the filtrate tank 2, and the top end of the output shaft of the scraping servo motor 45 extends to the top of the filtrate tank 2. A transmission wheel 46 is fixedly installed on the top end of the output shaft of the scraping servo motor 45, and a transmission wheel 47 is fixedly installed on the bottom of the surface of the rotating sleeve 34. The surfaces of the transmission wheel 46 and the transmission wheel 47 are connected by a synchronous belt. A mounting bracket 42 is fixedly installed at the bottom inside the rotating sleeve 34, and a scraping servo cylinder 43 is fixedly installed at the bottom of the mounting bracket 42. A scraping frame 44 is fixedly installed at the bottom end of the drive shaft of the scraping servo cylinder 43.

[0038] Furthermore, a discharge port 35 is provided on one side of the filtrate tank 2, and a movable frame 36 is slidably arranged inside the discharge port 35. One side of the movable frame 36 contacts one side of the inner wall of the filtrate tank 2, and a filter screen 37 is fixedly arranged inside the movable frame 36. A sealing baffle 38 is movably arranged above the discharge port 35. Three miniature electric cylinders 39 are fixedly arranged on the top of the filtrate tank 2, and the bottom ends of the drive shafts of the three miniature electric cylinders 39 are fixedly connected to the top of the sealing baffle 38. A sealing strip 41 is provided at the bottom of the sealing baffle 38, and a sealing groove 40 that cooperates with the sealing strip 41 is provided on the top of the movable frame 36.

[0039] It should be noted that, when the cleaning solution inside the filter tank 2 is introduced into the filter tank 2 through the rotating sleeve 34, the filter screen 37 inside the movable frame 36 filters the impurities in the cleaning solution. At the same time, the scraper servo cylinder 43 periodically drives the scraper frame 44 to move downward until the bottom of the scraper frame 44 contacts the upper surface of the filter screen 37. The output shaft of the scraper servo motor 45, in conjunction with the transmission wheel 1 46 and transmission wheel 2 47, controls the rotating sleeve 34 to rotate. During the rotation of the rotating sleeve 34, the scraper frame 44 rotates, scraping the impurities on the top of the filter screen 37, ensuring the filtration effect of the filter screen 37 on the impurities in the cleaning solution. At the same time, the rotating sleeve 34 drives the filter tank 2 to rotate, causing the cleaning basket 14 inside the filter tank 2 to generate centrifugal force, further improving the cleaning effect on the main valve piston.

[0040] Furthermore, support blocks 48 are fixedly installed on both sides of the bottom of the cleaning tank base 6, and support balls 49 are rotatably installed on the bottom of each support block 48. A ball bearing groove 27 is provided on the top of the filtrate tank 2, and the bottoms of the two support balls 49 are slidably connected to the inside of the ball bearing groove 27. By the support blocks 48 and the support balls 49 sliding inside the ball bearing groove 27, a stable support force is provided for the rotation of the filtrate tank 2 on the top of the fixed base 1.

[0041] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0042] This invention is not limited to the optional embodiments described above, and anyone can derive other various forms of products based on the inspiration of this invention. The specific embodiments described above should not be construed as limiting the scope of protection of this invention; the scope of protection of this invention should be determined by the claims, and the specification can be used to interpret the claims.

Claims

1. A method for cleaning the piston of the main valve of a shock absorber solenoid valve, characterized in that: Includes the following steps: Step 1: Clean the main valve piston of the shock absorber solenoid valve using a cleaning device. Insert the bottom end of the main valve piston (30) into the limiting hole (33) of the material block (26) inside the cleaning basket (14). By radially limiting the limiting post (32), stack multiple cleaning baskets (14) with the positioning post (28) and the positioning hole (31). Step 2: Start the connection servo cylinder (16), adjust the servo cylinder (19) and limit servo cylinder (25), fix the stacked cleaning baskets (14) through the connection component (15), close the top cover (5) of the cleaning box and seal it; Step 3: The cleaning solution is sprayed through the cleaning nozzle (10) via the liquid inlet rack (11), liquid delivery rack (12) and liquid guide rack (9). The rotary servo motor is started to drive the cleaning basket (14) to rotate 360°. The ultrasonic transducer and transducer are started simultaneously. The cleaning solution is introduced into the filter tank (2) for filtration through the rotating sleeve (34). Step 4: Use the filter screen (37) to filter the cleaning liquid impurities. Drive the scraper frame (44) to move down according to the preset cycle through the scraper servo cylinder (43). Cooperate with the scraper servo motor (45) to drive the scraper frame (44) to rotate and clean the dirt. The rotating sleeve (34) synchronously drives the cleaning box (3) to rotate. Step 5: Stop supplying cleaning fluid, spray high-pressure air knife through air inlet frame (13) and air guide frame (7) and dry nozzle (8), and keep cleaning basket (14) rotating and drying for 5 minutes; Step 6: Open the drain pipe to discharge the filtered cleaning liquid, move the closed baffle (38) up, pull out the movable frame (36) to clean impurities, reset the movable frame (36) and seal the discharge port (35). Step 7: Unlock the connection assembly (15), open the top cover of the cleaning tank (5), remove the cleaning basket (14) and take out the main valve piston (30), check the cleanliness of its surface and channels, and clean the unqualified products again; The cleaning device includes a fixed base (1), a filtrate tank (2), and a cleaning tank (3). The filtrate tank (2) is fixedly mounted on the top of the fixed base (1), and the cleaning tank (3) is rotatably mounted on the top of the filtrate tank (2). The cleaning tank (3) consists of a cleaning tank body (4), a cleaning tank top cover (5), and a cleaning tank base frame (6). The cleaning tank top cover (5) is rotatably mounted on the top of the cleaning tank body (4) via a hinge, and the cleaning tank base frame (6) is fixedly mounted on the bottom of the cleaning tank body (4). A rotating sleeve (34) is fixedly mounted on the bottom of the cleaning tank base frame (6), and the bottom end of the rotating sleeve (34) rotates with the top of the filtrate tank (2). Connection; A liquid delivery rack (12) is fixedly installed on the top of the cleaning tank top cover (5), and several liquid guide racks (9) are fixedly installed on the bottom of the cleaning tank top cover (5). The interior of the liquid delivery rack (12) is connected to the interior of several liquid guide racks (9). Several cleaning nozzles (10) are fixedly installed at the bottom of several liquid guide racks (9), and the interior of several cleaning nozzles (10) is connected to the interior of the liquid guide racks (9). A liquid inlet rack (11) is also rotatably installed on the outer circumferential surface of the liquid delivery rack (12), and the interior of the liquid inlet rack (11) is rotatably and sealed to the interior of the liquid delivery rack (12). A liquid delivery pipe is also fixedly installed on one side of the liquid inlet rack (11). The main body (4) of the cleaning tank is provided with several cleaning baskets (14) inside, and the several cleaning baskets (14) are stacked; both sides of the main body (4) of the cleaning tank are fixedly provided with connecting servo cylinders (16), and one end of the drive end of each of the two connecting servo cylinders (16) is provided with a connecting component (15), and the two connecting components (15) are respectively movably connected to the two sides of the cleaning baskets (14); positioning holes (31) are provided around the inside of each of the four positioning holes (31), and positioning pins (28) are threaded into the inside of each of the four positioning holes (31), between the upper and lower cleaning baskets (14), The tops of the four positioning posts (28) located below extend into the four positioning holes (31) located above; the inside of the cleaning basket (14) is fixedly provided with several material clamping blocks (26) by connecting bolts (29), and several limiting holes (33) are provided inside the several material clamping blocks (26). Three limiting posts (32) are also fixedly provided around the limiting holes (33). The main valve piston (30) is placed inside the limiting holes (33), and the bottom end of the main valve piston (30) extends into the limiting holes (33). The top end of the main valve piston (30) is above the material clamping blocks (26); The connecting assembly (15) includes a connecting frame (17) and a connecting block (21). A rotating frame (18) is fixedly installed at one end of the drive shaft of the connecting servo cylinder (16), and a rotary servo motor is fixedly installed inside the rotating frame (18). The output shaft of the rotary servo motor is fixedly installed on the connecting frame (17). Adjusting servo cylinders (19) are fixedly installed at the upper and lower sides inside the connecting frame (17), and adjusting blocks (20) are fixedly installed at one end of the drive shaft of each of the two adjusting servo cylinders (19). The two adjusting blocks (20) are respectively located at the upper and lower sides inside the connecting frame (17) and are slidably installed. One side of the cleaning basket (14) is fixedly provided with a connecting block (21), and two sides of the two connecting blocks (21) are fixedly provided with limit servo cylinders (25), and one end of the drive shaft of the two limit servo cylinders (25) is fixedly provided with a limit block (22); both sides of the cleaning basket (14) are provided with connecting grooves (23) that cooperate with the connecting blocks (21), and both sides of the connecting grooves (23) are provided with limit grooves (24) that cooperate with the limit blocks (22); one side of the filtrate tank (2) is fixedly provided with a scraper servo motor (45), and the top end of the output shaft of the scraper servo motor (45) extends to the filtrate tank (2). At the top, a transmission wheel 1 (46) is fixedly installed at the top of the output shaft of the scraping servo motor (45), and a transmission wheel 2 (47) is fixedly installed at the bottom of the surface of the rotating sleeve (34). The surfaces of the transmission wheel 1 (46) and the transmission wheel 2 (47) are connected by a synchronous belt. A mounting bracket (42) is fixedly installed at the bottom of the interior of the rotating sleeve (34), and a scraping servo cylinder (43) is fixedly installed at the bottom of the mounting bracket (42). A scraping frame (44) is fixedly installed at the bottom of the drive shaft of the scraping servo cylinder (43). A discharge port (35) is provided on one side of the filtrate tank (2). The internal sliding arrangement of the filter box (2) includes a movable frame (36), one side of which contacts the inner wall of the filter box (2), and a filter screen (37) is fixedly arranged inside the movable frame (36); a closed baffle (38) is movably arranged above the discharge port (35), and three miniature electric cylinders (39) are fixedly arranged on the top of the filter box (2), and the bottom ends of the drive shafts of the three miniature electric cylinders (39) are fixedly connected to the top of the closed baffle (38); a sealing strip (41) is provided at the bottom of the closed baffle (38), and a sealing groove (40) that cooperates with the sealing strip (41) is provided on the top of the movable frame (36).

2. The cleaning method for the main valve piston of a shock absorber solenoid valve according to claim 1, characterized in that: An air inlet frame (13) is fixedly installed on the top of the cleaning tank cover (5) and inside the liquid delivery frame (12). An air delivery pipe is rotatably installed on the top of the air inlet frame (13). Several air guide frames (7) are fixedly installed at the bottom of the cleaning tank cover (5). Several drying nozzles (8) are fixedly installed at the bottom of each of the several air guide frames (7). The interior of each of the several drying nozzles (8) is connected to the interior of the air guide frame (7).

3. The cleaning method for the main valve piston of a shock absorber solenoid valve according to claim 1, characterized in that: The bottom of the cleaning tank base (6) is fixedly provided with support blocks (48) on both sides, and the bottom of the two support blocks (48) is rotatably provided with support balls (49). The top of the filtrate tank (2) is provided with a ball groove (27), and the bottom of the two support balls (49) is slidably connected to the inside of the ball groove (27).

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