A polishing device for an oil cylinder body
The polishing device, controlled by an electric slide rail and a drive motor, solves the problem of unevenness caused by manual operation during the polishing process of hydraulic cylinder body, achieving efficient and uniform polishing of the cylinder inner wall and adapting to the needs of cylinders with different inner diameters.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XICHUAN ANSHU PRECISION MFG CO LTD
- Filing Date
- 2025-06-05
- Publication Date
- 2026-06-02
AI Technical Summary
In the current production of hydraulic cylinders, manual movement of the hand-held polishing machine during the cylinder polishing process can easily damage the inner wall of the cylinder and make it difficult to ensure uniformity.
The top cover moves up and down using an electric slide rail, and the drive motor drives the rotating shaft and polishing plate to polish the inside of the cylinder. The polishing plate can be easily removed and replaced by the screw on the rotating seat, which can accommodate cylinders with different inner diameters.
This improves the uniformity and quality of polishing inside the cylinder, avoids errors caused by manual operation, and ensures the stability and adaptability of the polishing effect.
Smart Images

Figure CN224310332U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hydraulic cylinders, and in particular to a cylinder body polishing device. Background Technology
[0002] A hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion. It has a simple structure and reliable operation. When used to achieve reciprocating motion, it eliminates the need for a speed reduction device and has no transmission backlash, resulting in smooth movement. Therefore, it is widely used in the hydraulic systems of various machines.
[0003] In existing hydraulic cylinder production, the polishing device for the cylinder body involves the operator manually moving the polishing head while holding the polishing machine. Since the inner wall of the cylinder needs to be polished for a long length, manual polishing is prone to errors that can damage the inner wall of the cylinder. In order to address this technical problem, this application proposes a hydraulic cylinder body polishing device. Utility Model Content
[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a cylinder polishing device. The electric slide rail can control the top cover to move up and down with the help of the slider, so that the drive motor drives the rotating shaft to drive the polishing plate to polish the inside of the cylinder. Compared with the movement of a manual hand-held polishing machine, it can more evenly improve the polishing quality inside the cylinder. The screw on the rotating seat can also facilitate the disassembly and replacement of the polishing plate inside to ensure the polishing quality of the cylinder.
[0005] To achieve the above objectives, the present invention provides the following technical solution:
[0006] A cylinder polishing device includes a worktable with a placement groove at its top and a clamping assembly at its top. A top cover is connected to the top of the worktable via a control assembly. A drive motor is fixedly connected to the top of the top cover, and a rotating shaft is fixedly connected to the drive end of the drive motor. Limit grooves are formed on both the left and right sides of the outer wall of the rotating shaft. Sliding sleeves are slidably connected to the inner walls of the limit grooves. Multiple rotating seats are fixedly connected to the outer walls of the sliding sleeves. Rotating rods are rotatably connected to the outer walls of each rotating seat, and rotating seats are rotatably connected to the inner walls of each rotating rod. Polishing plates are provided on the inner walls of each rotating seat. Multiple insertion holes are formed at both the front and rear ends of the rotating shaft.
[0007] Furthermore, the clamping assembly includes fixed blocks fixedly connected to both the left and right sides of the top of the worktable, and an electric push rod fixedly connected to one end of each fixed block, with a clamping plate fixedly connected to the driving end of each electric push rod.
[0008] Furthermore, the control component includes a support frame fixedly connected to both the left and right sides of the top of the workbench, and an electric slide rail fixedly connected to one end of each support frame, with a slider provided on the inner wall of each electric slide rail.
[0009] Furthermore, the lower side of the inward end of the slider is rotatably connected to the outer wall of the top cover, and the upper side of the inward end of the slider is fixedly connected to the outer wall of the drive motor.
[0010] Furthermore, the bottom end of the top cover is provided with multiple sliding grooves, and the inner wall of each sliding groove is slidably connected with a limit rod. The bottom end of each limit rod is fixedly connected to the top end of the rotating seat.
[0011] Furthermore, the outer wall of the rotating shaft is fixedly connected to the inner wall of the top cover, and the inner wall of the sliding sleeve is threaded with a fixing bolt, the size of which is adapted to the insertion hole.
[0012] Furthermore, the polishing plate and the rotating seat are connected by screws, which are used to replace the polishing plate on the rotating seat.
[0013] This utility model has the following beneficial effects:
[0014] 1. In this utility model, the electric slide rail can control the top cover to move up and down with the help of the slider, so that the drive motor drives the rotating shaft to drive the polishing plate to polish the inside of the cylinder. Compared with the manual hand-held polishing machine, it can more evenly improve the polishing quality inside the cylinder. The screw on the rotating seat can also facilitate the disassembly and replacement of the polishing plate inside to ensure the polishing quality of the cylinder.
[0015] 2. In this utility model, by pushing the sliding sleeve to slide on the rotating shaft so that it is aligned with the insertion holes at different positions, the rotating rod can rotate and drive the rotating seat to move, thereby changing the polishing range of the device. With the help of the electric push rod to drive the clamping plate, cylinders of different sizes can be clamped and polished, avoiding movement during the polishing process that would affect the polishing effect. Attached Figure Description
[0016] Figure 1 This is a perspective view of a cylinder polishing device proposed in this utility model;
[0017] Figure 2 This is a schematic diagram of the top cover in a cylinder polishing device proposed in this utility model;
[0018] Figure 3 This is a schematic diagram of the rotating shaft in a cylinder polishing device proposed in this utility model.
[0019] Legend:
[0020] 1. Workbench; 2. Support frame; 3. Fixing block; 4. Electric push rod; 5. Clamping plate; 6. Placement slot; 7. Limiting rod; 8. Electric slide rail; 9. Slider; 10. Top cover; 11. Drive motor; 12. Rotating shaft; 13. Slide groove; 14. Limiting groove; 15. Sliding sleeve; 16. Insertion hole; 17. Rotating seat one; 18. Rotating rod; 19. Rotating seat two; 20. Polishing plate; 21. Fixing bolt. 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] Reference Figure 1-3 An embodiment of this utility model provides a cylinder polishing device, including a worktable 1, a placement groove 6 at the top of the worktable 1, a clamping assembly at the top of the worktable 1, the clamping assembly including fixed blocks 3 fixedly connected to the left and right sides of the top of the worktable 1, an electric push rod 4 fixedly connected to the inward end of each fixed block 3, a clamping plate 5 fixedly connected to the driving end of each electric push rod 4, a top cover 10 connected to the top of the worktable 1 via a control assembly, the control assembly including a support frame 2 fixedly connected to the left and right sides of the top of the worktable 1, an electric slide rail 8 fixedly connected to the inward end of each support frame 2, a slider 9 provided on the inner wall of each electric slide rail 8, a slider 9 rotatably connected to the lower side of the inward end of each slider 9, a slider 9 fixedly connected to the upper side of the inward end of each slider 9, a drive motor 11 fixedly connected to the top of the top cover 10, and a rotating shaft 12 fixedly connected to the driving end of the drive motor 11.
[0023] Specifically, the placement slot 6 on the workbench 1 is used to place the cylinder that needs to be polished. With the help of the electric push rod 4, the clamping plate 5 can clamp cylinders of different sizes to prevent them from moving during the polishing process and affecting the polishing effect. The electric slide rail 8 can control the top cover 10 to move up and down with the help of the slider 9 to polish the inside of the cylinder. Compared with the movement of a manual hand-held polishing machine, it can more evenly improve the polishing quality inside the cylinder.
[0024] The rotating shaft 12 has limit grooves 14 on both the left and right sides of its outer wall. The inner wall of the limit groove 14 is slidably connected to a sliding sleeve 15. The outer wall of the sliding sleeve 15 is fixedly connected to multiple rotating seats 17. The outer wall of each rotating seat 17 is rotatably connected to a rotating rod 18. The inner wall of each rotating rod 18 is rotatably connected to a rotating seat 29. The inner wall of each rotating seat 29 is provided with a polishing plate 20. The polishing plate 20 and the rotating seat 29 are connected by screws for replacing the polishing plate 20 on the rotating seat 29. The rotating shaft 12 has multiple insertion holes 16 at both the front and rear ends. The outer wall of the rotating shaft 12 is fixedly connected to the inner wall of the top cover 10. The inner wall of the sliding sleeve 15 is threaded with a fixing bolt 21. The size of the fixing bolt 21 is adapted to the insertion hole 16. The bottom end of the top cover 10 has multiple sliding grooves 13. The inner wall of each sliding groove 13 is slidably connected to a limit rod 7. The bottom end of each limit rod 7 is fixedly connected to the top end of the rotating seat 29.
[0025] Specifically, by pushing the sliding sleeve 15 to slide on the rotating shaft 12 so that it aligns with the insertion holes 16 at different positions, the rotating rod 18 can rotate, causing the rotating seat 19 to move, thereby changing the polishing range of the device to polish cylinders with different inner diameters. The limiting rod 7 on the rotating seat 19 will slide in the sliding groove 13 to ensure that the rotating seat 19 can move on the horizontal plane. The screw on the rotating seat 19 can be used to easily disassemble and replace the polishing plate 20 inside, so as to ensure the polishing quality of the cylinder.
[0026] Working principle: During use, the cylinder to be polished is placed in the placement slot 6. The electric push rod 4 drives the clamping plate 5, which clamps the outer wall of the cylinder. Then, depending on the cylinder model, the sliding sleeve 15 slides on the outer wall of the rotating shaft 12, thereby causing the rotating seat 17 to move upwards, rotating the rotating rod 18. The rotation of the rotating rod 18 pulls the rotating seat 19 inwards or outwards, thus changing the distance between the polishing plate 20 and the rotating shaft 12 to suit polishing cylinders of different inner diameters. After adjustment, the fixing bolt 21 is inserted into the sliding sleeve using a tool. The sleeve 15 is fixed in the insertion hole 16 aligned with it. Then, the slider 9 is driven by the electric slide rail 8 to slide on its inner wall to insert the polishing plate 20 into the cylinder. The drive motor 11 is started and the drive end of the drive motor 11 drives the rotating shaft 12 to rotate, so that the polishing plate 20 rotates to polish the inner wall of the cylinder. When the polishing plate 20 is worn after long-term use, the screw used to fix the rotating seat 2 19 and the polishing plate 20 can be removed with a tool to replace the polishing plate 20 inside the rotating seat 2 19 to ensure the polishing effect.
[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 polishing a cylinder barrel of a hydraulic cylinder, comprising a worktable (1), characterized in that: The top of the workbench (1) is provided with a placement slot (6), the top of the workbench (1) is provided with a clamping assembly, the top of the workbench (1) is connected to a top cover (10) through a control assembly, the top of the top cover (10) is fixedly connected with a drive motor (11), the drive end of the drive motor (11) is fixedly connected with a rotating shaft (12), the outer wall of the rotating shaft (12) is provided with limit grooves (14) on both the left and right sides, the inner wall of the limit groove (14) is slidably connected with a sliding sleeve (15), the outer wall of the sliding sleeve (15) is fixedly connected with multiple rotating seats one (17), the outer wall of each rotating seat one (17) is rotatably connected with a rotating rod (18), the inner wall of each rotating rod (18) is rotatably connected with a rotating seat two (19), the inner wall of each rotating seat two (19) is provided with a polishing plate (20), and multiple insertion holes (16) are provided at both the front and rear ends of the rotating shaft (12).
2. The oil cylinder barrel polishing device according to claim 1, characterized in that: The clamping assembly includes fixed blocks (3) fixedly connected to the left and right sides of the top of the workbench (1). Each fixed block (3) is fixedly connected to an electric push rod (4) at one end inward. Each electric push rod (4) is fixedly connected to a clamping plate (5) at the driving end.
3. The oil cylinder barrel polishing device according to claim 1, characterized in that: The control component includes a support frame (2) fixedly connected to the left and right sides of the top of the workbench (1). An electric slide rail (8) is fixedly connected to one end of each support frame (2), and a slider (9) is provided on the inner wall of each electric slide rail (8).
4. The oil cylinder barrel polishing apparatus according to claim 3, characterized by: The slider (9) is rotatably connected to the outer wall of the top cover (10) at its lower inner end, and is fixedly connected to the outer wall of the drive motor (11) at its upper inner end.
5. The oil cylinder barrel polishing apparatus according to claim 1, characterized by: The top cover (10) has multiple sliding grooves (13) at its bottom end. Each sliding groove (13) has a limit rod (7) slidably connected to its inner wall. The bottom end of each limit rod (7) is fixedly connected to the top of the rotating seat (19).
6. The oil cylinder barrel polishing apparatus according to claim 1, characterized by: The outer wall of the rotating shaft (12) is fixedly connected to the inner wall of the top cover (10), and the inner wall of the sliding sleeve (15) is threaded with a fixing bolt (21), the size of which is adapted to the insertion hole (16).
7. The oil cylinder barrel polishing apparatus according to claim 1, characterized by: The polishing plate (20) and the rotating seat (19) are connected by screws for replacing the polishing plate (20) on the rotating seat (19).