Hydraulic cylinder piston outer surface treatment device
By designing a hydraulic cylinder piston outer surface treatment device with an angle adjustment mechanism, the problem that traditional devices cannot adjust the polishing angle has been solved, achieving efficient repair and improved sealing of the piston surface.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU HONGXIN MASCH MFG CO LTD
- Filing Date
- 2025-06-09
- Publication Date
- 2026-05-08
AI Technical Summary
Traditional hydraulic cylinder piston outer surface treatment devices cannot adjust the polishing angle according to the curvature of the piston outer surface, resulting in local wear that is not repaired or is over-repaired, affecting sealing performance.
A hydraulic cylinder piston outer surface treatment device including a grinding mechanism and an angle adjustment mechanism was designed. The angle of the grinding mechanism is adjusted by the angle adjustment mechanism to avoid local wear and the formation of uneven areas.
It enables dynamic adjustment of the polishing angle based on the curvature of the piston surface, avoiding localized wear and improving the smoothness and sealing performance of the piston surface.
Smart Images

Figure CN224209627U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hydraulic cylinder piston technology, and in particular to a device for treating the outer surface of a hydraulic cylinder piston. Background Technology
[0002] The hydraulic cylinder piston outer surface treatment device is a device used to treat the outer surface of hydraulic cylinder pistons to improve their performance and extend their service life. It is a special device for improving the surface smoothness, wear resistance and corrosion resistance of pistons. Its core technologies cover machining, polishing and surface coating processes.
[0003] The hydraulic cylinder piston outer surface treatment device uses a rotating polishing head and grinding media to quickly remove surface burrs and improve smoothness. Traditional hydraulic cylinder piston outer surface treatment devices have a fixed polishing head angle, which cannot be adjusted according to the curvature of the piston outer surface or in the grinding dead corner. This can easily cause local wear to be unrepaired or over-repaired, forming uneven areas and affecting the sealing performance of the hydraulic cylinder piston. Utility Model Content
[0004] The purpose of this invention is to provide a device for treating the outer surface of a hydraulic cylinder piston, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a hydraulic cylinder piston outer surface treatment device, comprising:
[0006] A frame, the top of which is equipped with a grinding mechanism for repairing the surface of a hydraulic cylinder piston;
[0007] A circular cylinder is positioned above a machine frame. A movable block is movably connected to the inner wall of the circular cylinder, and a connecting rod is fixedly connected to the bottom of the movable block. The grinding mechanism is located outside the connecting rod.
[0008] An angle adjustment mechanism is provided inside the cylindrical tube and is used to adjust the angle of the grinding mechanism.
[0009] Preferably, the angle adjustment mechanism includes a first clamping plate, which is fixedly connected to the inner wall of the cylindrical cylinder, and a second clamping plate is clamped to the outer wall of the first clamping plate. An elastic component is provided between the second clamping plate and the cylindrical cylinder.
[0010] Preferably, the elastic component includes a spring, a circular rod is slidably connected to the inner wall of the cylindrical tube, the movable block is fixedly connected to the end of the circular rod away from the cylindrical tube, the second clamping plate is fixedly sleeved on the outer wall of the circular rod, and the spring is fixedly connected between the cylindrical tube and the second clamping plate.
[0011] Preferably, a clamping mechanism is fixedly connected to the top of the frame, a square box is fixedly connected to the top of the frame, a slider is slidably connected to the inner wall of the square box, and a second driving member is provided on the inner wall of the square box, the second driving member being used to drive the slider to move.
[0012] Preferably, a support plate is fixedly connected to the top of the slider, a first driving member is fixedly connected to the top of the support plate, a connecting block is driven to the output end of the first driving member, and the cylindrical tube is fixedly connected to the inner wall of the connecting block.
[0013] Preferably, a first fixing plate is fixedly connected to one end of the connecting rod away from the moving block, and a second fixing plate is fixedly connected to the top of the grinding mechanism, with bolts threaded between the first fixing plate and the second fixing plate.
[0014] Compared with the prior art, the technical effects of this utility model are as follows:
[0015] This invention utilizes a grinding mechanism to grind and repair the surface of a hydraulic cylinder piston. When encountering a grinding dead angle, an angle adjustment mechanism is used to drive a moving block to rotate. The moving block drives the grinding mechanism to rotate via a connecting rod, thereby adjusting the angle of the grinding mechanism and avoiding situations where local wear is not repaired or is over-repaired, resulting in uneven areas. Attached Figure Description
[0016] Figure 1 This is a frontal three-dimensional structural diagram of the present utility model.
[0017] Figure 2 This is a side perspective view of the present invention.
[0018] Figure 3 This is a three-dimensional structural diagram of the circular cylinder of this utility model.
[0019] Figure 4 This is a three-dimensional cross-sectional view of the circular cylinder structure of this utility model.
[0020] In the diagram: 1. Frame; 2. Clamping mechanism; 3. Support plate; 4. First driving component; 5. Connecting block; 6. Circular cylinder; 7. Slider; 8. Bolt; 9. First fixing plate; 10. Second fixing plate; 11. Connecting rod; 12. First clamping plate; 13. Second clamping plate; 14. Spring; 15. Circular rod; 16. Grinding mechanism; 17. Moving block; 18. Square box; 19. Second driving component. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] This utility model provides, for example Figures 1-4 The device for treating the outer surface of a hydraulic cylinder piston includes a frame 1, a cylindrical cylinder 6, and an angle adjustment mechanism. A grinding mechanism 16 is installed on the top of the frame 1. The grinding mechanism 16 is used to repair the surface of the hydraulic cylinder piston. The grinding mechanism 16 includes a motor, a rotating shaft, and a grinding head. The motor provides power to drive the rotating shaft to rotate, and the rotating shaft drives the grinding head to rotate. The grinding head grinds the outer surface of the hydraulic cylinder piston. The cylindrical cylinder 6 is located above the frame 1. A moving block 17 is movably connected to the inner wall of the cylindrical cylinder 6. A connecting rod 11 is fixedly connected to the bottom of the moving block 17. The grinding mechanism 16 is located outside the connecting rod 11. The angle adjustment mechanism is located inside the cylindrical cylinder 6. The angle adjustment mechanism is used to adjust the angle of the grinding mechanism 16. In specific use, the grinding mechanism 16 is used to grind and repair the surface of the hydraulic cylinder piston. When encountering a grinding dead angle, the angle adjustment mechanism drives the moving block 17 to rotate. The moving block 17 drives the grinding mechanism 16 to rotate through the connecting rod 11, thereby achieving the purpose of adjusting the angle of the grinding mechanism 16 and avoiding the situation where local wear is not repaired or over-repaired, forming uneven areas.
[0023] In one aspect, the angle adjustment mechanism includes a first locking plate 12, which is fixedly connected to the inner wall of the cylindrical cylinder 6. A second locking plate 13 is engaged with the outer wall of the first locking plate 12. Multiple locking blocks are arranged on the opposite sides of the first locking plate 12 and the second locking plate 13 in a circumferential array. The moving block 17 is fixed by the alternating engagement of the first locking plate 12 and the second locking plate 13 with the multiple locking blocks. An elastic component, including a spring 14, is provided between the second locking plate 13 and the cylindrical cylinder 6. A circular rod 15 is slidably connected to the inner wall of the cylindrical cylinder 6. The moving block 17 is fixedly connected to one end of the circular rod 15 away from the cylindrical cylinder 6. The circular rod 15 passes through the first locking plate 12, and the first locking plate 12 does not contact the circular rod 15. Plate 13 is fixedly sleeved on the outer wall of circular rod 15, and spring 14 is fixedly connected between circular cylinder 6 and second clamping plate 13. In specific use: when it is necessary to adjust the angle of grinding mechanism 16, the worker pushes moving block 17, moving block 17 drives circular rod 15 to move, circular rod 15 drives second clamping plate 13 to move, canceling the engagement between second clamping plate 13 and first clamping plate 12. Rotating moving block 17, moving block 17 drives second clamping plate 13 to rotate through circular rod 15, moving block 17 drives grinding mechanism 16 to rotate through connecting rod 11, completing the purpose of adjusting the angle of grinding mechanism 16. After adjustment, moving block 17 is released, and spring 14 resets and drives second clamping plate 13 to reset and re-engage with first clamping plate 12.
[0024] On the other hand, a clamping mechanism 2 is fixedly connected to the top of the frame 1. The clamping mechanism 2 includes a tool holder clamp and a guide sleeve bracket. The tool holder clamp is used to clamp the piston to ensure its stability during the processing. The guide sleeve bracket is used to support and position the guide sleeve to ensure processing accuracy. A square box 18 is fixedly connected to the top of the frame 1. A slider 7 is slidably connected to the inner wall of the square box 18. A second driving member 19 is provided on the inner wall of the square box 18. The second driving member 19 is used to drive the slider 7 to move. The second driving member 19 includes a motor and a threaded rod. The motor drives the threaded rod to rotate, and the threaded rod drives the slider 7 to move. The slider 7 can only move horizontally under the limitation of the square box 18.
[0025] In addition, a support plate 3 is fixedly connected to the top of the slider 7, a first driving component 4 is fixedly connected to the top of the support plate 3, a connecting block 5 is connected to the output end of the first driving component 4, the first driving component 4 includes a hydraulic cylinder, a cylindrical cylinder 6 is fixedly connected to the inner wall of the connecting block 5, a first fixing plate 9 is fixedly connected to the end of the connecting rod 11 away from the moving block 17, a second fixing plate 10 is fixedly connected to the top of the grinding mechanism 16, and a bolt 8 is threadedly connected between the first fixing plate 9 and the second fixing plate 10.
[0026] In practice: When it is necessary to adjust the angle of the grinding mechanism 16, the worker pushes the moving block 17, which drives the circular rod 15 to move. The circular rod 15 drives the second clamping plate 13 to move, thus canceling the engagement between the second clamping plate 13 and the first clamping plate 12. The worker then rotates the moving block 17, which drives the second clamping plate 13 to rotate via the circular rod 15. The moving block 17 then drives the grinding mechanism 16 to rotate via the connecting rod 11, thus completing the purpose of adjusting the angle of the grinding mechanism 16. This avoids situations where local wear is not repaired or is over-repaired, resulting in uneven areas. After the adjustment is completed, the worker releases the moving block 17, and the spring 14 resets, causing the second clamping plate 13 to reset and re-engage with the first clamping plate 12.
[0027] Finally, it should be noted that the above description is only 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 device for treating the outer surface of a hydraulic cylinder piston, characterized in that, include: A frame (1) is provided with a grinding mechanism (16) on the top of the frame (1), the grinding mechanism (16) being used to repair the surface of the hydraulic cylinder piston; A circular cylinder (6) is disposed above the frame (1). A movable block (17) is movably connected to the inner wall of the circular cylinder (6). A connecting rod (11) is fixedly connected to the bottom of the movable block (17). The grinding mechanism (16) is disposed outside the connecting rod (11). An angle adjustment mechanism is provided inside the cylindrical tube (6) and is used to adjust the angle of the grinding mechanism (16).
2. The hydraulic cylinder piston outer surface treatment device according to claim 1, characterized in that, The angle adjustment mechanism includes a first clamping plate (12), which is fixedly connected to the inner wall of the cylindrical tube (6). A second clamping plate (13) is clamped to the outer wall of the first clamping plate (12), and an elastic component is provided between the second clamping plate (13) and the cylindrical tube (6).
3. The hydraulic cylinder piston outer surface treatment device according to claim 2, characterized in that, The elastic component includes a spring (14), a circular rod (15) is slidably connected to the inner wall of the circular cylinder (6), the moving block (17) is fixedly connected to one end of the circular rod (15) away from the circular cylinder (6), the second clamping plate (13) is fixedly sleeved on the outer wall of the circular rod (15), and the spring (14) is fixedly connected between the circular cylinder (6) and the second clamping plate (13).
4. The hydraulic cylinder piston outer surface treatment device according to claim 1, characterized in that, The top of the frame (1) is fixedly connected to a clamping mechanism (2), and the top of the frame (1) is fixedly connected to a square box (18). A slider (7) is slidably connected to the inner wall of the square box (18), and a second driving member (19) is provided on the inner wall of the square box (18). The second driving member (19) is used to drive the slider (7) to move.
5. The hydraulic cylinder piston outer surface treatment device according to claim 4, characterized in that, The top of the slider (7) is fixedly connected to a support plate (3), the top of the support plate (3) is fixedly connected to a first driving member (4), the output end of the first driving member (4) is connected to a connecting block (5), and the cylindrical tube (6) is fixedly connected to the inner wall of the connecting block (5).
6. The hydraulic cylinder piston outer surface treatment device according to claim 5, characterized in that, The connecting rod (11) is fixedly connected to a first fixing plate (9) at one end away from the moving block (17), and the grinding mechanism (16) is fixedly connected to a second fixing plate (10) at the top. The first fixing plate (9) and the second fixing plate (10) are threadedly connected by bolts (8).