Polishing machine for piston rod machining

By designing a grinding machine for piston rod processing with clamping components, support components, and grinding parts, the problem of the inability to grind the end of the piston rod was solved, achieving efficient grinding and stable clamping of the entire length of the piston rod, and adapting to the use of piston rods of different sizes.

CN224027210UActive Publication Date: 2026-03-24ANHUI XULI MACHINERY TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-10
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

In the existing technology, the fixed area at the end of the piston rod cannot be effectively polished during the polishing process, resulting in reduced polishing effect and increased time consumption.

Method used

A grinding machine for piston rod processing was designed, comprising a clamping assembly, a support assembly, and a grinding component. The machine uses a conveyor belt and a hydraulic rod to drive an arc-shaped abrasive plate to contact the outer wall of the piston rod, and combines a limiting component and an adjusting component to achieve effective grinding of the entire length of the piston rod.

Benefits of technology

It achieves complete grinding of the outer walls at both ends of the piston rod, improving grinding efficiency and stability, and adapting to the disassembly and assembly needs of piston rods of different lengths.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224027210U_ABST
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Abstract

The utility model discloses a polisher for processing a piston rod, and relates to the technical field of polishers, the polisher comprises a bottom plate, a piston rod main body and a polishing piece, a moving mechanism is arranged on the bottom plate, and the moving mechanism comprises a clamping assembly, a polishing assembly and a driving assembly, the clamping assembly is arranged on the bottom plate and is used for clamping and fixing the piston rod main body; by means of the designed moving mechanism, in the using process, a piston rod body to be polished is placed on balls in two sets of upper arc plates, then the multiple sets of conveying belts move towards the direction of the piston rod body, then the piston rod body can be clamped, and then arc sand plates on the inner walls of arc plates make contact with the outer wall of the piston rod body through hydraulic rods; and then the moving conveying belt drives the piston rod main body to do reciprocating motion in the left-right direction, so that the moving piston rod main body is polished through the arc-shaped sand plate, the outer walls of the two ends of the piston rod main body can be polished, and the polishing effect is improved.
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Description

Technical Field

[0001] This utility model belongs to the field of grinding machine technology, specifically a grinding machine for processing piston rods. Background Technology

[0002] The piston rod is a connecting component that supports the piston in performing work. It is mainly used in hydraulic, engineering machinery and pneumatic automobile manufacturing and other fields. During the processing of the piston rod, its outer surface needs to be polished by a grinder to remove the burrs.

[0003] In a Chinese patent application with application number 201922351678.5, which discloses a grinding device for piston rod processing, the piston rod is surrounded by an external arc-shaped sanding plate and fixed by a clamping member on a drive device. Then, the drive device rotates the clamping member, thereby causing the piston rod to rotate on the inner wall of the arc-shaped sanding plate on the grinding machine. The outer wall of the piston rod is ground by the arc-shaped sanding plate. However, during the grinding process, the area of ​​the clamping member that fixes the end of the piston rod cannot be ground. The piston rod needs to be removed and the unground areas need to be ground again. This reduces the grinding effect of the piston rod and increases the grinding time. To address this issue, we propose a grinding machine for piston rod processing. Utility Model Content

[0004] The purpose of this utility model is to provide a grinding machine for piston rod processing, so as to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a grinding machine for processing piston rods, comprising a base plate, a piston rod body, and a grinding component, wherein a moving mechanism is provided on the base plate, and the moving mechanism includes:

[0006] A clamping assembly, mounted on the base plate, is used to clamp and fix the piston rod body.

[0007] The support assembly, located above the base plate, is used to support the piston rod body during loading and unloading.

[0008] Preferably, the clamping assembly includes four sets of horizontal plates, on which a driving wheel and a driven wheel are rotatably mounted respectively, and a conveyor belt is sleeved on the outside of the driving wheel and the driven wheel.

[0009] Preferably, a baffle is fixedly provided at the top of the horizontal plate, and a fixed motor is fixedly provided at the bottom of the horizontal plate.

[0010] Preferably, multiple sets of upright plates are fixedly arranged on the base plate, and the upright plates are slidably arranged with movable columns and limiting blocks inside.

[0011] Preferably, a bidirectional lead screw is rotatably provided inside the upright plate, and two sets of nut seats are provided outside the bidirectional lead screw. A connecting plate is fixedly provided between the top of the nut seat and the moving column, and a motor is fixedly provided on the surface of the upright plate.

[0012] The base plate has limiting grooves on both sides, and an L-shaped limiting plate is fixedly installed at the bottom of the nut seat.

[0013] Preferably, the support assembly includes two sets of upper arc plates, and the inner wall of the upper arc plates is provided with multiple sets of ball bearings.

[0014] Preferably, the upright plate is provided with a limiting component, the limiting component including a mounting plate fixed to the surface of the upright plate, a limiting electric push rod fixedly provided at the bottom of the mounting plate, a pressing plate fixedly provided at the working end of the limiting electric push rod, and a rubber plate fixedly provided at the bottom of the pressing plate.

[0015] Preferably, the bottom of the upper arc plate is provided with an adjusting component, the adjusting component includes a stud fixed to the bottom of the upper arc plate, the bottom plate has an adjusting groove inside, and the stud is connected to a fixing nut by a thread.

[0016] Preferably, the grinding component includes two sets of vertical plates fixed to the top of the base plate, a hydraulic rod is fixedly installed at the top of the vertical plates, an arc-shaped plate is fixedly installed at the working end of the hydraulic rod, and an arc-shaped sanding plate is fixedly installed on the inner wall of the arc-shaped plate.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] (1) Through the designed moving mechanism, the piston rod body to be polished is placed on the balls in the two sets of upper arc plates during use. Then, multiple sets of conveyor belts move towards the piston rod body and clamp the piston rod body. Then, the arc-shaped sanding plate on the inner wall of the arc plate contacts the outer wall of the piston rod body through the hydraulic rod. Then, the moving conveyor belt drives the piston rod body to move back and forth in the left and right directions, so that the moving piston rod body is polished by the arc-shaped sanding plate. The outer walls of both ends of the piston rod body can be polished, which increases the polishing effect.

[0019] (2) The present invention uses a limiting component to limit the bidirectional screw when multiple conveyor belts clamp the piston rod body during use. This limit electric push rod drives the pressure plate and rubber plate to move downward to limit the bidirectional screw, avoiding accidental rotation of the bidirectional screw and the probability of movement of the nut seat and conveyor belt. This increases the stability of clamping the piston rod body and improves the stability of the piston rod body during the grinding process.

[0020] (3) The present invention has an adjustable component designed so that the distance between the two sets of upper arc plates can be adjusted according to the length of the piston rod body during use, which makes it convenient to disassemble and put away piston rod bodies of different sizes and lengths. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the rear-view, upward-looking structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the vertical plate and conveyor belt structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the upper arc plate and ball bearing structure of this utility model;

[0025] Figure 5 For the present utility model Figure 4 Enlarged structural diagram of section A in the middle;

[0026] Figure 6 This is a schematic diagram of the main structure of the piston rod of this utility model;

[0027] In the diagram: 100, base plate; 101, vertical plate; 102, hydraulic rod; 103, arc-shaped plate; 104, piston rod body; 105, arc-shaped sand plate; 200, vertical plate; 201, conveyor belt; 202, drive wheel; 203, horizontal plate; 204, baffle; 205, moving column; 206, driven wheel; 207, nut seat; 208, motor mounting; 209, double-acting screw; 210, L-shaped limit plate; 211, limit block; 212, fixed motor; 213, upper arc plate; 214, ball bearing; 215, limit electric push rod; 217, clamping plate; 218, rubber plate; 300, adjusting groove; 301, stud; 302, fixing nut. Detailed Implementation

[0028] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0029] Example 1

[0030] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6This utility model provides a technical solution: a grinding machine for processing piston rods, including a base plate 100, a piston rod body 104 and a grinding component. A moving mechanism is provided on the base plate 100. The moving mechanism includes a clamping assembly and a supporting assembly. The clamping assembly includes four sets of horizontal plates 203. A driving wheel 202 and a driven wheel 206 are rotatably arranged on the horizontal plates 203 respectively. A conveyor belt 201 is sleeved on the outside of the driving wheel 202 and the driven wheel 206. The piston rod body 104 being clamped can be moved by the conveyor belt 201.

[0031] A baffle 204 is fixedly installed on the top of the horizontal plate 203, and a fixed motor 212 is fixedly installed on the bottom of the horizontal plate 203. The working end of the fixed motor 212 is fixedly connected to the end of the drive wheel 202. The fixed motor 212 can drive the conveyor belt 201 to move.

[0032] Multiple sets of upright plates 200 are fixedly installed on the base plate 100. The upright plates 200 are slidably equipped with moving columns 205 and limiting blocks 211. When the moving columns 205 move, they will move within the upright plates 200. When the conveyor belt 201 and the horizontal plate 203 move, they will drive the limiting blocks 211 to move. At this time, the limiting blocks 211 will slide within the upright plates 200, increasing the stability of the conveyor belt 201 and the upright plates 200 when they move. The ends of the moving columns 205 and the limiting blocks 211 both extend to the surface of the horizontal plate 203.

[0033] The upright plate 200 is internally equipped with a bidirectional lead screw 209. When the bidirectional lead screw 209 rotates, it can drive two sets of nut seats 207 to move simultaneously in opposite directions. Two sets of nut seats 207 are provided on the outside of the bidirectional lead screw 209. A connecting plate is fixedly provided between the top of the nut seat 207 and the moving column 205. A motor 208 is fixedly provided on the surface of the upright plate 200. The working end of the motor 208 extends to the end of the bidirectional lead screw 209.

[0034] Both sides of the base plate 100 are provided with limiting grooves. When the nut seat 207 moves, it will drive the L-shaped limiting plate 210 to slide in the limiting groove, which can limit the moving nut seat 207. The bottom of the nut seat 207 is fixedly provided with the L-shaped limiting plate 210, and the end of the L-shaped limiting plate 210 extends into the interior of the limiting groove.

[0035] The support assembly includes two sets of upper arc plates 213. Multiple sets of balls 214 are rolled on the inner wall of the upper arc plates 213. When the piston rod body 104 moves, the lower balls 214 will roll, reducing the wear on the piston rod body 104.

[0036] This utility model, through its designed moving mechanism, places the piston rod body 104 to be polished on the ball bearings 214 in two sets of upper arc plates 213 during use. Then, multiple sets of conveyor belts 201 move towards the piston rod body 104, thereby clamping the piston rod body 104. Next, the hydraulic rod 102 causes the arc-shaped abrasive plate 105 on the inner wall of the arc plate 103 to contact the outer wall of the piston rod body 104. Then, the moving conveyor belts 201 drive the piston rod body 104 to reciprocate in the left and right directions, thereby polishing the moving piston rod body 104 through the arc-shaped abrasive plate 105. This allows both ends of the outer wall of the piston rod body 104 to be polished, increasing the polishing effect.

[0037] Example 2

[0038] Please refer to Example 1. Figure 1 , Figure 3 , Figure 4 and Figure 5 A limiting component is provided on the upright plate 200. The limiting component includes a mounting plate fixed to the surface of the upright plate 200. A limiting electric push rod 215 is fixedly provided at the bottom of the mounting plate. A pressure plate 217 is fixedly provided at the working end of the limiting electric push rod 215. A rubber plate 218 is fixedly provided at the bottom of the pressure plate 217. The rubber plate 218 can increase the fixing firmness of the pressure plate 217 to the bidirectional lead screw 209 and also avoid squeezing indentations on the bidirectional lead screw 209.

[0039] This utility model, through its designed limiting component, limits the bidirectional lead screw 209 when multiple conveyor belts 201 clamp the piston rod body 104 during use. This is achieved by using a limiting electric push rod 215 to move the pressure plate 217 and rubber plate 218 downwards, thus limiting the bidirectional lead screw 209. This prevents the bidirectional lead screw 209 from rotating unexpectedly, which could lead to the nut seat 207 and conveyor belts 201 moving. This increases the stability of clamping the piston rod body 104 and improves the stability of the piston rod body 104 during the grinding process.

[0040] Example 3

[0041] Please refer to Example 2. Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6 The bottom of the upper arc plate 213 is provided with an adjusting component, which includes a stud 301 fixed to the bottom of the upper arc plate 213. An adjusting groove 300 is opened inside the bottom plate 100. The bottom of the stud 301 passes through the inside of the adjusting groove 300. Two sets of fixing nuts 302 are threadedly connected to the outside of the stud 301.

[0042] This utility model, through its designed adjustment mechanism, allows for adjustment of the distance between the two sets of upper arc plates 213 according to the length of the piston rod body 104 during use, facilitating the disassembly and placement of piston rod bodies 104 of different sizes and lengths.

[0043] In this embodiment, the grinding component includes two sets of vertical plates 101 fixed to the top of the base plate 100. A hydraulic rod 102 is fixedly installed on the top of the vertical plate 101. An arc-shaped plate 103 is fixedly installed at the working end of the hydraulic rod 102. An arc-shaped sanding plate 105 is fixedly installed on the inner wall of the arc-shaped plate 103.

[0044] Working principle and usage process of this utility model:

[0045] In use, the piston rod body 104 to be ground is placed on two sets of upper arc plates 213. The bottom outer wall of the piston rod body 104 contacts the ball bearings 214 on the upper arc plates 213. Then, the mounting motor 208 is turned on, and its working end rotates, driving the bidirectional lead screw 209 to rotate. At this time, the two sets of nut seats 207 on the bidirectional lead screw 209 move in opposite directions, causing the moving column 205 to move. The moving column 205 then moves the horizontal plate 203, which in turn moves the conveyor belt 201 and other structures. The outer wall of the conveyor belt 201 then contacts and clamps the piston rod body 104. Next, the hydraulic rod 102 is turned on, causing the arc plate 103 to move. The arc plate 103 then moves the arc-shaped sanding plate 105. The inner wall of the arc-shaped sanding plate 105 then contacts the outer wall of the piston rod body 104. Finally, the hydraulic rod 102 is turned on, causing the arc plate 103 to move. The arc plate 103 then moves the arc-shaped sanding plate 105. Two sets of fixed motors 212 drive the drive wheel 202 to rotate, which in turn drives the conveyor belt 201 and the driven wheel 206 to rotate. At this time, the two sets of conveyor belts 201 rotate in the same direction, which in turn drives the clamped piston rod body 104 to move to the right. Then, the moving piston rod body 104 is polished by the arc-shaped sanding plate 105. Then, the left end of the piston rod body 104 is separated from the two sets of conveyor belts 201 located at the top left side of the base plate 100, and the left end of the piston rod body 104 can be polished. After the piston rod body 104 moves to a suitable position, the fixed motor 212 reverses, driving the conveyor belt 201 and the piston rod body 104 to move to the left. This process is repeated multiple times to polish the piston rod body 104. After polishing, the piston rod body 104 can be removed by operating according to the reverse principle.

[0046] After multiple sets of conveyor belts 201 clamp the piston rod body 104, the limit electric push rod 215 is activated. Then, the working end moves downward, driving the pressure plate 217 to move. The pressure plate 217 drives the rubber plate 218 to move. Then, the bottom of the rubber plate 218 contacts and presses the bidirectional lead screw 209 to limit it, so as to avoid the bidirectional lead screw 209 from rotating accidentally, which would cause the nut seat 207 and the conveyor belt 201 to move. When it is necessary to rotate the bidirectional lead screw 209, the operation can be carried out in the opposite way.

[0047] When some piston rod bodies 104 are too long or too short, both sets of fixing nuts 302 on the outside of the stud 301 are rotated outward to loosen them. Then, the stud 301 is moved to the left or right as needed to a suitable position, thereby driving the upper arc plate 213 to move so that the distance between the two sets of upper arc plates 213 is suitable for the length of the piston rod body 104. This allows for adjustment of the distance between the two sets of upper arc plates 213, making it convenient to place the piston rod body 104 on the upper arc plate 213 or remove it from the upper arc plate 213 after grinding.

[0048] The above embodiments are only used to illustrate the technical methods of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical methods of this utility model without departing from the spirit and scope of the technical methods of this utility model.

Claims

1. A grinding machine for piston rod processing, comprising a base plate (100), a piston rod body (104), and a grinding component, characterized in that: A moving mechanism is provided on the base plate (100), the moving mechanism comprising: A clamping assembly is provided on the base plate (100) for clamping and fixing the piston rod body (104); A support assembly is provided above the base plate (100) to support the piston rod body (104) during the picking and placing process; The clamping assembly includes four sets of horizontal plates (203), on which a driving wheel (202) and a driven wheel (206) are rotatably mounted respectively, and a conveyor belt (201) is sleeved on the outside of the driving wheel (202) and the driven wheel (206).

2. A grinding machine for piston rod processing according to claim 1, characterized in that: A baffle (204) is fixedly installed on the top of the horizontal plate (203), and a fixed motor (212) is fixedly installed on the bottom of the horizontal plate (203).

3. A grinding machine for piston rod processing according to claim 1, characterized in that: Multiple sets of upright plates (200) are fixedly installed on the base plate (100), and the upright plates (200) are slidably provided with movable columns (205) and limiting blocks (211).

4. A grinding machine for piston rod processing according to claim 3, characterized in that: The upright plate (200) is rotatably provided with a two-way lead screw (209), and two sets of nut seats (207) are provided on the outside of the two-way lead screw (209). A connecting plate is fixedly provided between the top of the nut seat (207) and the moving column (205), and a motor (208) is fixedly provided on the surface of the upright plate (200). The base plate (100) has limiting grooves on both sides, and the bottom of the nut seat (207) is fixedly provided with an L-shaped limiting plate (210).

5. A grinding machine for piston rod processing according to claim 1, characterized in that: The support assembly includes two sets of upper arc plates (213), and the inner wall of the upper arc plates (213) is provided with multiple sets of ball bearings (214).

6. A grinding machine for piston rod processing according to claim 3, characterized in that: The upright plate (200) is provided with a limiting component, which includes a mounting plate fixed to the surface of the upright plate (200). A limiting electric push rod (215) is fixedly provided at the bottom of the mounting plate. A pressing plate (217) is fixedly provided at the working end of the limiting electric push rod (215). A rubber plate (218) is fixedly provided at the bottom of the pressing plate (217).

7. A grinding machine for piston rod processing according to claim 5, characterized in that: The bottom of the upper arc plate (213) is provided with an adjusting component, which includes a stud (301) fixed to the bottom of the upper arc plate (213). An adjusting groove (300) is provided inside the bottom plate (100), and a fixing nut (302) is threadedly connected to the outside of the stud (301).

8. A grinding machine for piston rod processing according to claim 1, characterized in that: The grinding component includes two sets of vertical plates (101) fixed to the top of the base plate (100). A hydraulic rod (102) is fixedly installed on the top of the vertical plate (101). An arc plate (103) is fixedly installed at the working end of the hydraulic rod (102). An arc-shaped sanding plate (105) is fixedly installed on the inner wall of the arc plate (103).

Citation Information

Patent Citations

  • Polishing device for piston rod machining

    CN211661684U