Piston rod polishing equipment

By using a linkage clamping mechanism and a double-chain transmission structure, the problem of insufficient adaptability of traditional polishing equipment is solved, enabling rapid clamping and uniform polishing of the piston rod, thereby improving the degree of automation and production efficiency.

CN224575371UActive Publication Date: 2026-07-31NINGBO LUOFEIAO MASCH MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO LUOFEIAO MASCH MFG CO LTD
Filing Date
2025-09-03
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

Traditional manual polishing methods are inefficient and inconsistent. Existing automated polishing equipment has a complex structure and insufficient adaptability, making it difficult to quickly clamp and stably polish piston rods of different diameters, resulting in uneven polishing and cumbersome adjustments.

Method used

It adopts a linkage clamping mechanism and a double chain drive to drive the reciprocating lead screw, which can quickly adapt to and stably clamp piston rods of different diameters. The smooth movement of the polishing ring ensures uniformity. It integrates clamping, polishing and collection functions, reducing manual intervention.

Benefits of technology

It improves the versatility and efficiency of polishing equipment, ensures polishing uniformity and surface quality, and significantly enhances automation and production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a polishing device for piston rods, including a polishing box and a rotating ring plate. Fixed ring plates are fixedly connected to both sides of the inner wall of the polishing box. Several sliding grooves are formed on the outer wall of the fixed ring plates, and sliding sleeves are fixedly connected to adjacent sides of the outer wall of the fixed ring plates. This utility model, through the linkage design of the rotating ring plate and the connecting ring plate, combined with an adjustable connecting rod clamping mechanism, can quickly adapt to and fix piston rods of different diameters, improving the versatility and operational efficiency of the equipment. The structure of a double-chain driving a reciprocating lead screw achieves smooth reciprocating motion of the polishing ring block, ensuring uniform polishing force and effectively improving the polishing quality and smoothness of the piston rod surface. The overall structure is compact and reasonable, integrating clamping, polishing, and debris collection, which not only reduces manual intervention but also significantly improves the automation level and production efficiency of the polishing operation.
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Description

Technical Field

[0001] This utility model relates to the field of polishing equipment manufacturing technology, and in particular to polishing equipment for piston rods. Background Technology

[0002] As a key transmission component in hydraulic and pneumatic systems, the surface finish of the piston rod directly affects its sealing performance and service life. Traditional manual polishing methods are inefficient and inconsistent, while existing automated polishing equipment is often complex in structure and lacks adaptability, making it difficult to quickly clamp and stably polish piston rods of different diameters. It also suffers from technical problems such as uneven polishing and cumbersome adjustments. There is an urgent need for a specialized device that can efficiently and stably complete polishing operations and adapt to workpieces of different specifications.

[0003] Therefore, how to provide polishing equipment for piston rods is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] One objective of this invention is to propose a rod polishing device that can quickly adapt to piston rods of different diameters through a linkage clamping mechanism, thereby improving versatility and efficiency; it employs a double-chain drive to drive a reciprocating lead screw to control the smooth movement of the polishing ring, ensuring polishing uniformity and surface quality; the overall structure is compact, integrating clamping, polishing, and collection functions, reducing manual intervention, and improving automation and production efficiency, thus solving the problems mentioned in the background art.

[0005] A polishing device for piston rods according to an embodiment of the present invention includes a polishing box and a rotating ring plate. Fixed ring plates are fixedly connected to both the left and right sides of the inner wall of the polishing box. A plurality of sliding grooves are formed on the outer wall of the fixed ring plates. Sliding sleeves are fixedly connected to adjacent sides of the outer wall of the fixed ring plates. Limit blocks are fixedly connected to the outer wall of the sliding sleeves near the center of the fixed ring plates. The inner wall of the sliding sleeves is slidably connected to the moving blocks. A connecting ring plate is fixedly connected to the opposite side of the outer wall of the rotating ring plate. An adjusting rod is provided between the rotating ring plate and the connecting ring plate.

[0006] As a preferred embodiment of this utility model: a rotating motor is fixedly connected to the top right side of the polishing box, and a first drive sprocket is fixedly connected to the output end of the rotating motor.

[0007] As a further preferred embodiment of this utility model: the outer wall of the first drive sprocket is engaged with a first chain belt, and the bottom end of the inner wall of the first chain belt is engaged with a connecting sprocket.

[0008] As a further preferred embodiment of this utility model: a second chain belt is engaged with the right side of the outer wall of the connecting sprocket, and a driven sprocket is engaged with the bottom end of the inner wall of the second chain belt.

[0009] As a further preferred embodiment of this utility model: both the connecting sprocket and the driven sprocket are fixedly connected to a reciprocating screw, and a guide sleeve is provided on the outer wall of the reciprocating screw.

[0010] As a further preferred embodiment of this utility model: the outer wall of the guide sleeve is fixedly connected to the polishing box, the outer wall of the reciprocating lead screw is threadedly connected with a threaded sleeve, and the outer wall of the threaded sleeve is fixedly connected with a polishing ring block.

[0011] As a further preferred embodiment of this utility model: a plurality of connecting rods are slidably connected to the inner wall of the connecting ring plate, and a connecting rod is fixedly connected to the end of the connecting rod away from the connecting ring plate. A sliding block is fixedly connected to the bottom end of the connecting rod, and the sliding block is slidably connected to the sliding groove.

[0012] As a further preferred embodiment of this utility model: a moving block is fixedly connected to the end of the connecting rod away from the sliding block, a piston rod is provided between the ends of the connecting rods on both sides that are close to each other, and a debris collection box is provided at the bottom of the inner wall of the polishing box.

[0013] The beneficial effects of this utility model are: The linkage design between the rotating ring plate and the connecting ring plate, along with the adjustable linkage clamping mechanism, allows for quick adaptation and fixation of piston rods of different diameters, improving the equipment's versatility and operational efficiency. The double-chain driven reciprocating screw structure ensures smooth reciprocating motion of the polishing ring block, guaranteeing uniform polishing force and effectively improving the polishing quality and smoothness of the piston rod surface. The overall structure is compact and rational, integrating clamping, polishing, and debris collection, which not only reduces manual intervention but also significantly improves the automation level and production efficiency of the polishing operation. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the internal structure of the polishing box of the piston rod polishing equipment proposed in this utility model.

[0015] Figure 2 This is a front view schematic diagram of the overall structure of the polishing equipment for piston rods proposed in this utility model.

[0016] Figure 3 This is a three-dimensional cross-sectional view of the guide sleeve of the polishing equipment for piston rods proposed in this utility model.

[0017] Figure 4 This is a partial three-dimensional structural schematic diagram of the polishing equipment for piston rods proposed in this utility model.

[0018] Figure 5 This is a three-dimensional schematic diagram of the clamping assembly of the polishing equipment for piston rods proposed in this utility model.

[0019] Figure 6 This is a disassembled schematic diagram of the clamping assembly of the polishing equipment for piston rods proposed in this utility model.

[0020] The attached diagram shows: 1. Polishing box; 2. First chain belt; 3. Rotating motor; 4. First drive sprocket; 5. Fixed ring plate; 6. Polishing ring block; 7. Piston rod; 8. Guide sleeve rod; 9. Debris collection box; 10. Rotating ring plate; 11. Connecting sprocket; 12. Connecting ring plate; 13. Sliding sleeve; 14. Second chain belt; 15. Driven sprocket; 16. Connecting rod; 17. Adjusting rod; 18. Threaded sleeve; 19. Reciprocating lead screw; 20. Limiting block; 21. Sliding groove; 22. Sliding block; 23. Moving block. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0022] refer to Figure 1 , Figure 3 , Figure 4 As shown, a piston rod polishing device is characterized by comprising a polishing chamber 1 and a rotating ring plate 10. A rotating motor 3 is fixedly connected to the top right side of the polishing chamber 1. A first driving sprocket 4 is fixedly connected to the output end of the rotating motor 3. A first chain belt 2 is meshed with the outer wall of the first driving sprocket 4. A connecting sprocket 11 is meshed with the bottom end of the inner wall of the first chain belt 2. A second chain belt 14 is meshed with the right side of the outer wall of the connecting sprocket 11. A driven sprocket 15 is meshed with the bottom end of the inner wall of the second chain belt 14. A reciprocating screw 19 is fixedly connected inside both the connecting sprocket 11 and the driven sprocket 15. A guide sleeve 8 is provided on the outer wall of the reciprocating screw 19. The outer wall of the guide sleeve 8 is fixedly connected to the polishing chamber 1. A threaded sleeve 18 is threadedly connected to the outer wall of the reciprocating screw 19. A polishing ring block 6 is fixedly connected to the outer wall of the threaded sleeve 18. A glass observation door is provided at the front end of the polishing chamber 1, which allows for adjustment and maintenance of its internal components.

[0023] refer to Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6As shown, fixed ring plates 5 are fixedly connected to both the left and right sides of the inner wall of the polishing box 1. Several sliding grooves 21 are formed on the outer wall of the fixed ring plates 5. Sliding sleeves 13 are fixedly connected to the adjacent sides of the outer wall of the fixed ring plates 5. Limiting blocks 20 are fixedly connected to the outer wall of the sliding sleeves 13 near the center of the fixed ring plates 5. The inner wall of the sliding sleeves 13 is slidably connected to the moving block 23. A connecting ring plate 12 is fixedly connected to the opposite side of the outer wall of the rotating ring plate 10. A groove is provided between the rotating ring plate 10 and the connecting ring plate 12. An adjusting rod 17 is fixed by a locking assembly to prevent it from sliding and causing the piston rod 7 to slip. Several connecting rods are slidably connected to the inner wall of the connecting ring plate 12, and a connecting rod 16 is fixedly connected to the end of each connecting rod away from the connecting ring plate 12. A sliding block 22 is fixedly connected to the bottom end of the connecting rod 16, and the sliding block 22 is slidably connected to the sliding groove 21. A moving block 23 is fixedly connected to the end of the connecting rod 16 away from the sliding block 22. A piston rod 7 is located between the adjacent ends of the connecting rods 16 on both sides. A debris collection box 9 is provided at the bottom of the inner wall of the polishing box 1.

[0024] Working principle: First, the piston rod 7 is inserted into the inner wall of the polishing chamber 1 through the through hole on the outer wall of the polishing chamber 1. Then, by pulling the adjusting rod 17, the rotating ring plate 10 and the connecting ring plate 12 are rotated. The rotation of the connecting ring plate 12 causes the connecting rod 16 to be angled. This allows the moving block 23 connected to the end of the connecting rod 16 away from the rotating ring plate 10 to slide outward on the inner wall of the sliding sleeve 13, and allows the end of the connecting rod 16 near the center of the connecting ring plate 12 to rotate to one side. The piston rod 7 can be clamped by multiple connecting rods 16. Then, the rotating motor 3 is started to drive the first drive sprocket 4 to rotate. The rotation of wheel 4 drives the first chain belt 2 to rotate, which in turn drives the connecting sprocket 11 at the bottom of the inner wall to rotate. The rotation of the connecting sprocket 11 drives the second chain belt 14 on the outer wall to rotate, which in turn drives the driven sprocket 15 to rotate. The rotation of the connecting sprocket 11 and the driven sprocket 15 drives the reciprocating screw 19 on the inner wall to rotate, which in turn drives the threaded sleeve 18 on the outer wall to move. The movement of the threaded sleeve 18 can polish the outer wall of the piston rod 7 through the connecting rods 16 on both sides.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A polishing apparatus for a piston rod, characterized by, The polishing box (1) includes a polishing box body (1) and a rotating ring plate (10). The polishing box body (1) has a fixed ring plate (5) fixedly connected to both the left and right sides of its inner wall. The outer wall of the fixed ring plate (5) has several sliding grooves (21). The outer wall of the fixed ring plate (5) is fixedly connected to a sliding sleeve (13) on the side close to the center of the fixed ring plate (5). The outer wall of the sliding sleeve (13) is fixedly connected to a limit block (20) on the side close to the center of the fixed ring plate (5). The inner wall of the sliding sleeve (13) is slidably connected to the moving block (23). The outer wall of the rotating ring plate (10) is fixedly connected to a connecting ring plate (12) on the opposite side. An adjusting rod (17) is provided between the rotating ring plate (10) and the connecting ring plate (12).

2. The polishing apparatus for a piston rod according to claim 1, characterized by A rotating motor (3) is fixedly connected to the top right side of the polishing box (1), and a first drive sprocket (4) is fixedly connected to the output end of the rotating motor (3).

3. The polishing equipment for piston rods according to claim 2, characterized in that, The outer wall of the first drive sprocket (4) is meshed with a first chain belt (2), and the bottom end of the inner wall of the first chain belt (2) is meshed with a connecting sprocket (11).

4. The polishing equipment for piston rods according to claim 3, characterized in that, The connecting sprocket (11) is engaged with a second chain belt (14) on the right side of its outer wall, and a driven sprocket (15) is engaged with the bottom end of the inner wall of the second chain belt (14).

5. The polishing apparatus for a piston rod according to claim 4, characterized by Both the connecting sprocket (11) and the driven sprocket (15) are fixedly connected to a reciprocating screw (19), and a guide sleeve (8) is provided on the outer wall of the reciprocating screw (19).

6. The polishing apparatus for a piston rod according to claim 5, characterized by The outer wall of the guide sleeve (8) is fixedly connected to the polishing box (1), and the outer wall of the reciprocating screw (19) is threaded with a threaded sleeve (18), and the outer wall of the threaded sleeve (18) is fixedly connected with a polishing ring block (6).

7. The polishing apparatus for a piston rod according to claim 1, characterized by The inner wall of the connecting ring plate (12) is slidably connected with several connecting rods, and the end of the connecting rod away from the connecting ring plate (12) is fixedly connected to a connecting rod (16). The bottom end of the connecting rod (16) is fixedly connected to a sliding block (22), and the sliding block (22) is slidably connected to the sliding groove (21).

8. The polishing apparatus for a piston rod according to claim 7, characterized by A moving block (23) is fixedly connected to the end of the connecting rod (16) away from the sliding block (22), and a piston rod (7) is provided between the ends of the connecting rods (16) on both sides that are close to each other. A debris collection box (9) is provided at the bottom of the inner wall of the polishing box (1).