A piston rod surface polishing machine
By combining polishing and reciprocating components, and using a servo motor to drive the transmission gears and lead screw, the piston rod surface polishing machine can perform center-symmetrical polishing and multiple polishing of piston rods of different sizes. This solves the problems of uneven polishing and poor effect in the existing technology, and improves polishing quality and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI LIANGYI MASCH CO LTD
- Filing Date
- 2025-08-25
- Publication Date
- 2026-07-24
AI Technical Summary
Existing piston rod surface polishing machines are not suitable for symmetrical polishing of piston rods of different sizes, and are not suitable for driving the piston rod to perform multiple reciprocating movements, which reduces the polishing quality and effect.
A piston rod surface polishing machine was designed. By combining a polishing component and a reciprocating component, a servo motor drives the transmission gear and lead screw to drive the polishing mechanism and piston rod to rotate and reciprocate, thereby achieving center-symmetric polishing and multiple polishing of piston rods of different sizes.
It achieves center-symmetrical polishing of piston rods of different sizes, improves polishing quality, and enhances the polishing effect through reciprocating motion.
Smart Images

Figure CN224544189U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of piston rod polishing, specifically a piston rod surface polishing machine. Background Technology
[0002] Polishing is a surface treatment process that uses physical or chemical methods to remove microscopic imperfections from the surface of a material, achieving a smooth, glossy, or even mirror-like finish. It is widely used in the finishing stages of materials such as metals, plastics, glass, and ceramics to improve the appearance, corrosion resistance, or functionality of products.
[0003] In the prior art, such as in publication number CN221048145U, a piston rod surface polishing machine is disclosed, which includes: a worktable on which a polishing device is mounted; the polishing device is used to polish the piston rod; it also includes: a piston rod fixing frame, which includes a positioning frame and a moving frame for fixing the piston rod; a length adjusting bracket for adjusting the distance between the positioning frame and the moving frame; a longitudinal moving assembly for driving the length adjusting bracket to move longitudinally; and a transverse moving assembly for driving the longitudinal moving assembly to move laterally. Although the aforementioned patent uses a piston rod fixing bracket to fix the piston rod, and the distance between the positioning bracket and the moving bracket can be adjusted by a length adjustment bracket to accommodate piston rods of different lengths, and the longitudinal and lateral moving components drive the length adjustment bracket to move, the surface of the piston rod can be automatically polished, improving polishing efficiency and avoiding the risks of manual operation, the surface polishing machine is not suitable for symmetrical polishing of piston rods of different sizes due to the cylindrical shape of the piston rod and the different sizes of piston rods for different purposes, which reduces the quality of piston rod polishing. At the same time, during polishing, since the effect of a single polishing is limited, the polishing machine is not suitable for driving the piston rod to reciprocate for multiple polishing, which reduces the polishing effect. Therefore, a piston rod surface polishing machine is proposed to address the above problems. Utility Model Content
[0004] To overcome the shortcomings of existing technologies and solve the problems of inconvenience in performing symmetrical polishing of piston rods of different sizes and inconvenience in performing multiple polishing operations by driving the piston rod to reciprocate, this utility model proposes a piston rod surface polishing machine.
[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: The piston rod surface polishing machine of this utility model includes a base platform, a fixed ring is fixedly connected to the top of the base platform, a fixed plate is fixedly connected to the surface of the fixed ring in a ring array, a polishing component is rotatably connected to the surface of the fixed plate, a base plate is fixedly connected to the bottom of the base platform, a vertical plate is fixedly connected to the top edge of the base plate, and a reciprocating component is rotatably connected to one side of the vertical plate. The polishing assembly includes a connecting rod rotatably connected to the surface of a fixed plate, a limiting ring slidably connected to the surface of the connecting rod, a rotating ring rotatably connected to one side of the limiting ring, a transmission gear meshing with the bottom of the rotating ring, a transmission rod A fixedly connected to one side of the transmission gear, a splined connection of one side of the transmission rod A to the output end of a servo motor A, and a polishing mechanism fixedly connected to one end of the connecting rod. The reciprocating assembly includes a reciprocating lead screw rotatably connected to one side of the vertical plate. One end of the reciprocating lead screw is fixedly connected to a B transmission rod, and one end of the B transmission rod is splinedly connected to a B servo motor. A threaded cylinder is threadedly connected to the surface of the reciprocating lead screw, a moving block is sleeved on the surface of the threaded cylinder, and a rotary chuck is fixedly connected to the surface of the moving block. Preferably, the surface of the A servo motor is fixedly connected to the A motor box, the bottom of the A motor box is fixedly connected to the pad, and the bottom of the pad is fixedly connected to the base plate.
[0006] Preferably, a B motor box is fixedly connected to the surface of the B servo motor, and a vertical plate is fixedly connected to one side of the B motor box.
[0007] Preferably, a limiting plate is fixedly connected to the other end of the reciprocating lead screw, a base platform is attached to one side of the limiting plate, and a base plate is fixedly connected to the bottom of the limiting plate.
[0008] Preferably, a slider is fixedly connected to the bottom of the movable block, and a slide rail is slidably connected to the inner surface of the slider.
[0009] Preferably, a base plate is fixedly connected to the bottom of the slide rail, a vertical plate is fixedly connected to one end of the slide rail, and a limit plate is fixedly connected to the other end of the slide rail.
[0010] The advantages of this utility model are: 1. This utility model, through the structural design of the polishing assembly, allows the piston rod surface polishing machine to operate by connecting the A servo motor to the power supply. This causes the A transmission rod to drive the transmission gear to rotate, which in turn drives the rotating ring to rotate via the gear ring. During the rotation of the rotating ring, the limiting ring moves along with the rotation of the rotating ring. Simultaneously, the limiting ring slides along the connecting rod, causing the connecting rod to change its angle. This allows multiple connecting rods to rotate synchronously around the connection point with the fixed plate as the axis of rotation, thereby synchronously changing the position of the polishing mechanism and the distance from the polishing mechanism to the central axis of the fixed ring. This enables the piston rod surface polishing machine to perform center-symmetrical polishing on piston rods of different sizes, improving the quality of piston rod polishing. 2. The structural design of this utility model for the composite component allows the piston rod surface polishing machine to horizontally center and fix the piston rod to be polished on the central axis of the fixed ring via a rotary chuck. After the rotary chuck is powered on, it can drive the piston rod to rotate. Then, the B servo motor is powered on, causing the B transmission rod to drive the reciprocating screw to rotate. Through the thread, the threaded cylinder connected to the reciprocating screw is pushed to move horizontally back and forth, thereby causing the moving block to drive the rotary chuck to reciprocate. This allows the polishing machine to drive the piston rod to reciprocate for multiple polishing operations, improving the polishing effect. Attached Figure Description
[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the disassembled structure of this utility model; Figure 3 This is a schematic diagram of the polishing component structure of this utility model; Figure 4 This is a schematic diagram of the reciprocating component structure of this utility model.
[0013] In the diagram: 1. Base platform; 2. Fixing ring; 3. Fixing plate; 4. Polishing assembly; 401. Connecting rod; 402. Limiting ring; 403. Rotating ring; 404. Transmission gear; 405. Transmission rod A; 406. Servo motor A; 407. Polishing mechanism; 5. Base plate; 6. Vertical plate; 7. Reciprocating assembly; 701. Reciprocating lead screw; 702. Transmission rod B; 703. Servo motor B; 704. Threaded cylinder; 705. Moving block; 706. Rotary chuck; 8. Motor box A; 9. Pad block; 10. Motor box B; 11. Limiting plate; 12. Slider; 13. Slide rail. Detailed Implementation
[0014] 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 scope of protection of the present utility model.
[0015] Please see Figures 1-4As shown, a piston rod surface polishing machine includes a base platform 1, a fixed ring 2 fixedly connected to the top of the base platform 1, a fixed plate 3 fixedly connected to the surface of the fixed ring 2 in a ring array, a polishing assembly 4 rotatably connected to the surface of the fixed plate 3, a base plate 5 fixedly connected to the bottom of the base platform 1, a vertical plate 6 fixedly connected to the top edge of the base plate 5, and a reciprocating assembly 7 rotatably connected to one side of the vertical plate 6. The polishing assembly 4 includes a connecting rod 401 rotatably connected to the surface of the fixed plate 3. A limiting ring 402 is slidably connected to the surface of the connecting rod 401. A rotating ring 403 is rotatably connected to one side of the limiting ring 402. A transmission gear 404 is meshed with the bottom of the rotating ring 403. A transmission rod 405 is fixedly connected to one side of the transmission gear 404. A spline connection is made to the output end of a servo motor 406 on one side of the transmission rod 405. A polishing mechanism 407 is fixedly connected to one end of the connecting rod 401. The reciprocating assembly 7 includes a reciprocating lead screw 701 rotatably connected to one side of the vertical plate 6. One end of the reciprocating lead screw 701 is fixedly connected to a B transmission rod 702. One end of the B transmission rod 702 is splinedly connected to a B servo motor 703. A threaded cylinder 704 is threadedly connected to the surface of the reciprocating lead screw 701. A moving block 705 is sleeved on the surface of the threaded cylinder 704. A rotary chuck 706 is fixedly connected to the surface of the moving block 705. During operation, thanks to the structural design of the polishing assembly 4, when using this piston rod surface polishing machine, the A servo motor 406 is connected to the power supply, causing the A transmission rod 405 to drive the transmission gear 404 to rotate. This, in turn, drives the rotating ring 403 to rotate via the gear ring. During the rotation of the rotating ring 403, the limiting ring 402 moves along with it. Simultaneously, the limiting ring 402 slides along the connecting rod 401, causing the connecting rod 401 to change its angle. This allows multiple connecting rods 401 to rotate synchronously around their connection point with the fixed plate 3, thereby synchronously changing the position of the polishing mechanism 407 and the distance from the polishing mechanism 407 to the central axis of the fixed ring 2. This enables the piston rod surface polishing machine to polish surfaces that are not uniform in size or shape. The piston rods of the same size are polished symmetrically at the center, which improves the quality of the piston rod polishing. In the structural setting leading to the composite component 7, when using the piston rod surface polishing machine, the piston rod to be polished is horizontally centered and fixed on the central axis of the fixed ring 2 by the rotary chuck 706. After the rotary chuck 706 is powered on, it can drive the piston rod to rotate. Then, the B servo motor 703 is powered on, which causes the B transmission rod 702 to drive the reciprocating screw 701 to rotate. Through the thread, the threaded cylinder 704, which is threaded to the reciprocating screw 701, moves horizontally back and forth, so that the moving block 705 drives the rotary chuck 706 to reciprocate. In this way, the polishing machine can drive the piston rod to reciprocate to perform multiple polishing, which improves the polishing effect.
[0016] Furthermore, a motor box 8 is fixedly connected to the surface of servo motor A 406, a pad 9 is fixedly connected to the bottom of motor box 8, and a base plate 5 is fixedly connected to the bottom of pad 9. During operation, the A motor box 8 can protect the A servo motor 406, and the pad 9 can support the A motor box 8 and the A servo motor 406 together to a suitable height.
[0017] Furthermore, a B motor box 10 is fixedly connected to the surface of the B servo motor 703, and a vertical plate 6 is fixedly connected to one side of the B motor box 10. During operation, the B servo motor 703 can be protected and supported by the B motor box 10.
[0018] Furthermore, a limiting plate 11 is fixedly connected to the other end of the reciprocating screw 701. A base platform 1 is attached to one side of the limiting plate 11, and a base plate 5 is fixedly connected to the bottom of the limiting plate 11. During operation, the limiting plate 11 supports the other end of the reciprocating screw 701 and, together with the vertical plate 6, limits the range of motion of the threaded cylinder 704.
[0019] Furthermore, a slider 12 is fixedly connected to the bottom of the movable block 705, and a slide rail 13 is slidably connected to the inner surface of the slider 12. During operation, the slider 12 and the slide rail 13 are configured to improve the sliding stability of the moving block 705 while reducing the friction generated during sliding through the slider 12.
[0020] Furthermore, a base plate 5 is fixedly connected to the bottom of the slide rail 13, a vertical plate 6 is fixedly connected to one end of the slide rail 13, and a limit plate 11 is fixedly connected to the other end of the slide rail 13. During operation, the sliding rail 13 is connected to the vertical plate 6 and the limiting plate 11, so that the range of motion of the slider 12 is controlled to be the same as the range of motion of the threaded cylinder 704.
[0021] Working principle: Before using the piston rod surface polishing machine, the piston rod to be polished is horizontally centered and fixed on the central axis of the fixed ring 2 by the rotary chuck 706. After the rotary chuck 706 is powered on, it can drive the piston rod to rotate. When using the piston rod surface polishing machine, the A servo motor 406 is connected to the power supply and powered on, so that the A transmission rod 405 drives the transmission gear 404 to rotate, which in turn drives the rotating ring 403 to rotate through the gear ring. During the rotation of the rotating ring 403, the limiting ring 402 moves with the rotation of the rotating ring 403. At the same time, the limiting ring 402 slides along the connecting rod 401 and drives the connecting... The angle of rod 401 is changed, causing multiple connecting rods 401 to rotate synchronously around the connection point with the fixed plate 3, thereby synchronously changing the position of the polishing mechanism 407 and the distance from the polishing mechanism 407 to the central axis of the fixed ring 2. At the same time, the B servo motor 703 is energized, causing the B transmission rod 702 to drive the reciprocating screw 701 to rotate. Through the thread, the threaded cylinder 704, which is threadedly connected to the reciprocating screw 701, moves horizontally back and forth, thereby causing the moving block 705 to drive the rotary chuck 706 to reciprocate. This enables the polishing machine to drive the piston rod to reciprocate for multiple polishing operations, improving the polishing effect.
[0022] The above description is merely 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, or similar improvements made within the theoretical and principle content of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A piston rod surface polishing machine, characterized in that: Includes a base platform (1), a fixing ring (2) is fixedly connected to the top of the base platform (1), a fixing plate (3) is fixedly connected to the surface of the fixing ring (2) in a ring array, a polishing component (4) is rotatably connected to the surface of the fixing plate (3), a base plate (5) is fixedly connected to the bottom of the base platform (1), a vertical plate (6) is fixedly connected to the top edge of the base plate (5), and a reciprocating component (7) is rotatably connected to one side of the vertical plate (6). The polishing assembly (4) includes a connecting rod (401) rotatably connected to the surface of the fixed plate (3). A limiting ring (402) is slidably connected to the surface of the connecting rod (401). A rotating ring (403) is rotatably connected to one side of the limiting ring (402). A transmission gear (404) is meshed with the bottom of the rotating ring (403). A transmission rod (405) is fixedly connected to one side of the transmission gear (404). A spline connection is made to the output end of a servo motor (406) on one side of the transmission rod (405). A polishing mechanism (407) is fixedly connected to one end of the connecting rod (401). The reciprocating assembly (7) includes a reciprocating screw (701) rotatably connected to one side of the vertical plate (6). One end of the reciprocating screw (701) is fixedly connected to a B transmission rod (702). One end of the B transmission rod (702) is splinedly connected to a B servo motor (703). A threaded cylinder (704) is threadedly connected to the surface of the reciprocating screw (701). A moving block (705) is sleeved on the surface of the threaded cylinder (704). A rotary chuck (706) is fixedly connected to the surface of the moving block (705).
2. The piston rod surface polishing machine according to claim 1, characterized in that: The surface of the A servo motor (406) is fixedly connected to the A motor box (8), the bottom of the A motor box (8) is fixedly connected to the pad (9), and the bottom of the pad (9) is fixedly connected to the base plate (5).
3. A piston rod surface polishing machine according to claim 1, characterized in that: The surface of the B servo motor (703) is fixedly connected to the B motor box (10), and a vertical plate (6) is fixedly connected to one side of the B motor box (10).
4. A piston rod surface polishing machine according to claim 1, characterized in that: The other end of the reciprocating screw (701) is fixedly connected to a limiting plate (11), and a base platform (1) is attached to one side of the limiting plate (11). A base plate (5) is fixedly connected to the bottom of the limiting plate (11).
5. A piston rod surface polishing machine according to claim 1, characterized in that: The bottom of the movable block (705) is fixedly connected to a slider (12), and the inner surface of the slider (12) is slidably connected to a slide rail (13).
6. A piston rod surface polishing machine according to claim 5, characterized in that: The bottom of the slide rail (13) is fixedly connected to a base plate (5), one end of the slide rail (13) is fixedly connected to a vertical plate (6), and the other end of the slide rail (13) is fixedly connected to a limiting plate (11).