Efficient rough grinding equipment for machining piston pin

By designing a high-efficiency rough grinding device that includes vibratory feeding and grinding wheels with different rotation speeds, the problems of efficiency and accuracy in rough grinding of piston pins were solved, and efficient and precise machining of piston pins was achieved.

CN223989329UActive Publication Date: 2026-03-13HANGZHOU KELIDA MODEL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-02
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

Existing technologies are insufficient for efficiently and accurately machining the rough grinding of piston pins, resulting in low efficiency and difficulty in guaranteeing accuracy.

Method used

A high-efficiency rough grinding device was designed, comprising a vibratory feeder, a feeding pipe, a material-carrying section, a first grinding wheel, and a second grinding wheel. Through vibratory feeding and the cooperation of grinding wheels with different rotation speeds, the piston pin is automatically ground and precisely adjusted.

Benefits of technology

This improved the efficiency and precision of piston pin rough grinding, ensuring stable support and position adjustment of the piston pin, and achieving an efficient and precise rough grinding process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses efficient rough grinding equipment for processing a piston pin, which belongs to the technical field of piston pins, comprises a workbench, and is characterized in that a cushion table is fixedly arranged on the left side of the upper part of the workbench, a first motor is fixedly arranged on the upper part of the cushion table, and a first grinding wheel is fixedly arranged at the front end of an output shaft of the first motor; a rotating shaft is rotatably arranged at the front part of the fixing seat; a second grinding wheel is fixedly arranged at the front end of the rotating shaft; a second motor is fixedly arranged on the right side of the upper part of the upper plate; a belt is arranged between the front end of an output shaft of the second motor and the rotating shaft in a sleeving manner; a vertical plate is fixedly arranged on the right side of the cushion table, a material carrying part is fixedly arranged on the upper portion of the vertical plate, and the center of the first grinding wheel, the center of the second grinding wheel and the center of the material carrying part are equal in height.
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Description

Technical Field

[0001] This utility model relates to the field of piston pin technology, specifically a high-efficiency rough grinding device for processing piston pins. Background Technology

[0002] Piston pins are cylindrical pins installed on the piston skirt and are an important structure connecting the piston and connecting rod. From raw materials to finished products, they require multiple processes such as cutting, rough grinding, fine grinding, drilling, grooving, and polishing. Among these, rough grinding, although a primary process, plays a fundamental role in the quality of the final product. Due to the small size of piston pins, if traditional equipment used for machining large workpieces is used to fix them and then grind them, it is not only difficult to fix them, leading to difficulty in ensuring accuracy, but the frequent fixing, grinding, and unfixing can also easily lead to difficulty in improving processing efficiency. Based on this situation, how to improve the rough grinding efficiency of piston pins while ensuring rough grinding accuracy has become an increasingly urgent problem for relevant technical personnel to solve. Summary of the Invention

[0003] To solve the above-mentioned technical problems, this utility model provides a high-efficiency rough grinding device for processing piston pins.

[0004] A high-efficiency rough grinding device for machining piston pins includes a worktable, characterized in that: a pad is fixedly installed on the upper left side of the worktable, a first motor is fixedly installed on the upper part of the pad, a first grinding wheel is fixedly installed at the front end of the output shaft of the first motor, an upper plate is installed on the upper right side of the worktable, a fixed seat is fixedly installed on the upper left side of the upper plate, a rotating shaft is rotatably installed at the front part of the fixed seat, a second grinding wheel is fixedly installed at the front end of the rotating shaft, a second motor is fixedly installed on the upper right side of the upper plate, a belt is sleeved between the front end of the output shaft of the second motor and the rotating shaft, a vertical plate is fixedly installed on the right side of the pad, a material loading part is fixedly installed on the upper part of the vertical plate, and the centers of the first grinding wheel, the second grinding wheel, and the material loading part are at the same height.

[0005] Furthermore, a slide rail is fixedly installed on the upper right side of the worktable, and balance plates are symmetrically fixedly installed on the upper part of the slide rail. A screw is rotatably installed between the balance plates, and a rotating wheel is fixedly installed at the right end of the screw. A lower plate is fixedly installed on the lower part of the upper plate, and the lower plate is threadedly connected to the screw. A slider is fixedly installed on the lower part of the lower plate, and the slider is slidably connected to the slide rail.

[0006] Furthermore, a base is provided in front of the workbench, a column is fixedly provided on the upper part of the base, a middle frame is fixedly provided on the upper part of the column, a vibrator is fixedly provided inside the middle frame, a vibrating plate is provided on the upper part of the middle frame, the vibrating plate is fixedly connected to the vibrator, and a feeding pipe is fixedly provided at the rear of the vibrating plate, the feeding pipe being at the same height as the material loading section.

[0007] Furthermore, a left cover is fixedly installed on the upper left side of the workbench, a right cover is fixedly installed on the upper right side of the workbench, a water bucket is fixedly installed on the upper part of the left cover, a hose is installed on the upper part of the water bucket, and the end of the hose away from the water bucket is located above the first grinding wheel and the second grinding wheel. A control box is fixedly installed on the upper part of the right cover.

[0008] Furthermore, a slide is fixedly provided below the first grinding wheel and the second grinding wheel, the vertical plate passes through the slide, the intersection of the slide and the vertical plate is sealed, the slide slopes from front to top to back to bottom, a rear plate is fixedly provided at the rear of the worktable, a material box is slidably provided on the upper part of the rear plate, the lower end of the slide is located above the material box, and drainage holes are provided through both sides of the material box. A baffle is slidably provided in front of the first grinding wheel and the second grinding wheel.

[0009] Furthermore, a socket and a main switch are provided at the front of the workbench.

[0010] The beneficial effects of this utility model's high-efficiency rough grinding equipment for processing piston pins are as follows:

[0011] 1. The vibratory feeder, feeding pipe, and loading section effectively ensure the continuity of feeding. By simply rotating the first grinding wheel clockwise and the second grinding wheel counterclockwise at different speeds, the piston pin can be automatically ground during the backward transmission process, thereby effectively improving the rough grinding efficiency of the piston pin.

[0012] 2. The material loading section effectively ensures the stability of the piston pin support. The threaded connection between the lower plate and the screw, and the sliding connection between the slider and the slide rail, effectively ensure the flexible adjustment of the distance between the first and second grinding wheels, while also effectively ensuring the stability of the position of the second grinding wheel, thereby effectively ensuring the rough grinding accuracy. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below, but this is not a limitation on the protection scope of this utility model.

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the internal main structure of the present invention (the vibrating plate and other structures are not shown).

[0016] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0017] Figure 4 This is a schematic diagram of the internal left view structure of this utility model (the vibrating plate, left cover, right cover and internal structure are not shown).

[0018] Among them, 1-vibrating plate, 2-vibrator, 3-middle frame, 4-column, 5-base, 6-workbench, 7-socket, 8-main switch, 9-rotor, 10-control box, 11-right cover, 12-baffle, 13-hose, 14-left cover, 15-bucket, 16-first motor, 17-platform, 18-upper plate, 19-slide rail, 20-slider, 21-lower plate, 22-upper plate, 23-screw, 24-balance plate, 25-second motor, 26-belt, 27-fixed seat, 28-rotating shaft, 29-second grinding wheel, 30-first grinding wheel, 31-feeding pipe, 32-carrying part, 33-rear plate, 34-material box, 35-slide rail. Detailed Implementation

[0019] To make the description clearer, the high-efficiency rough grinding equipment for processing piston pins according to this utility model will be further described in conjunction with the accompanying drawings.

[0020] A high-efficiency rough grinding device for machining piston pins includes a worktable 6, characterized in that: a pad 17 is fixedly installed on the upper left side of the worktable 6, a first motor 16 is fixedly installed on the upper part of the pad 17, a first grinding wheel 30 is fixedly installed at the front end of the output shaft of the first motor 16, an upper plate 22 is installed on the upper right side of the worktable 6, a fixed seat 27 is fixedly installed on the upper left side of the upper plate 22, a rotating shaft 28 is rotatably installed at the front of the fixed seat 27, a second grinding wheel 29 is fixedly installed at the front end of the rotating shaft 28, a second motor 25 is fixedly installed on the upper right side of the upper plate 22, a belt 26 is sleeved between the front end of the output shaft of the second motor 25 and the rotating shaft 28, a vertical plate 18 is fixedly installed on the right side of the pad 17, a material loading part 32 is fixedly installed on the upper part of the vertical plate 18, and the centers of the first grinding wheel 30, the second grinding wheel 29, and the material loading part 32 are at the same height.

[0021] Furthermore, a slide rail 19 is fixedly installed on the upper right side of the workbench 6, and balance plates 24 are symmetrically fixedly installed on the upper part of the slide rail 19. A screw 23 is rotatably installed between the balance plates 24, and a rotating wheel 9 is fixedly installed at the right end of the screw 23. A lower plate 21 is fixedly installed on the lower part of the upper plate 22. The lower plate 21 is threadedly connected to the screw 23. A slider 20 is fixedly installed on the lower part of the lower plate 21, and the slider 20 is slidably connected to the slide rail 19.

[0022] Furthermore, a base 5 is provided in front of the workbench 6, a column 4 is fixedly provided on the upper part of the base 5, a middle frame 3 is fixedly provided on the upper part of the column 4, a vibrator 2 is fixedly provided inside the middle frame 3, a vibrating plate 1 is provided on the upper part of the middle frame 3, the vibrating plate 1 is fixedly connected to the vibrator 2, and a feeding pipe 31 is fixedly provided at the rear of the vibrating plate 1. The feeding pipe 31 is at the same height as the material loading part 32.

[0023] Furthermore, a left cover 14 is fixedly installed on the upper left side of the workbench 6, a right cover 11 is fixedly installed on the upper right side of the workbench 6, a water bucket 15 is fixedly installed on the upper part of the left cover 14, a hose 13 is installed on the upper part of the water bucket 15, and the end of the hose 13 away from the water bucket 15 is located above the first grinding wheel 30 and the second grinding wheel 29. A control box 10 is fixedly installed on the upper part of the right cover 11.

[0024] Furthermore, a slide rail 35 is fixedly provided below the first grinding wheel 30 and the second grinding wheel 29. The upright plate 18 passes through the slide rail 35, and the intersection of the slide rail 35 and the upright plate 18 is sealed. The slide rail 35 is inclined from the front and upper to the rear and lower. A rear plate 33 is fixedly provided at the rear of the worktable 6. A material box 34 is slidably provided on the upper part of the rear plate 33. The lower end of the slide rail 35 is located above the material box 34. Drain holes are provided through both sides of the material box 34. A baffle 12 is slidably provided in front of the first grinding wheel 30 and the second grinding wheel 29.

[0025] Furthermore, a socket 7 and a main switch 8 are provided at the front of the workbench 6.

[0026] The working principle of this utility model for a high-efficiency rough grinding device for processing piston pins is as follows: Connect the plug of the vibratory plate 1 to the socket 7 at the front of the worktable 6, turn on the main switch 8, rotate the rotating wheel 9, and under the sliding limit of the slide rail 19 on the slider 20, the screw 23 drives the lower plate 21 to move to the left until the distance between the closest positions of the first grinding wheel 30 and the second grinding wheel 29 is equal to the diameter of the piston pin. Start the first motor 16 and the second motor 25, causing the first grinding wheel 30 to rotate clockwise and the second grinding wheel 29 to rotate counterclockwise at different speeds. Start the vibrator 2, which drives the vibratory plate 1 to vibrate. The piston pin material in the vibratory plate 1 is vibrated... The track and feed pipe 31 inside the disc 1 move to the surface of the material-carrying part 32. The faster grinding wheel drives the piston pin to rotate on the surface of the material-carrying part 32, while the slower grinding wheel grinds the surface of the piston pin. The valve of the water tank 15 is activated, and the water in the water tank 15 is sprayed onto the surface of the first grinding wheel 30, the second grinding wheel 29, and the material-carrying part 32 through the hose 13 to cool down the first grinding wheel 30, the second grinding wheel 29, and the piston pin. The finished piston pin and the water sprayed from the hose 13 fall onto the slide 35 and slide into the material box 34. An empty bucket is placed under the material box 34 to collect the water flowing out through the drain holes on both sides of the material box 34. The material box 34 is emptied periodically to maintain efficient coarse grinding of the piston pin.

[0027] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope defined in the claims.

Claims

1. A high efficiency roughing apparatus for machining a piston pin comprising a worktable, characterized by: The upper left side of the workbench is fixedly provided with a cushion table, the upper part of the cushion table is fixedly provided with a first motor, the front end of the output shaft of the first motor is fixedly provided with a first grinding wheel, the upper right side of the workbench is provided with an upper plate, the upper left side of the upper plate is fixedly provided with a fixed seat, the front part of the fixed seat is rotatably provided with a rotating shaft, the front end of the rotating shaft is fixedly provided with a second grinding wheel, the upper right side of the upper plate is fixedly provided with a second motor, the front end of the output shaft of the second motor is sleeved with a belt between the rotating shaft, the right side of the cushion table is fixedly provided with a vertical plate, the upper part of the vertical plate is fixedly provided with a material loading part, the centers of the first grinding wheel, the second grinding wheel and the material loading part are in the same height.

2. A high efficiency roughing apparatus for machining a piston pin as defined in claim 1, wherein, The upper right side of the workbench is fixedly provided with a sliding rail, the upper part of the sliding rail is symmetrically fixedly provided with a balance plate, the balance plate is rotatably provided with a screw rod between the balance plate, the right end of the screw rod is fixedly provided with a rotating wheel, the lower part of the upper plate is fixedly provided with a lower plate, the lower plate is threadedly connected with the screw rod, the lower part of the lower plate is fixedly provided with a sliding block, and the sliding block is slidably connected with the sliding rail.

3. A high efficiency roughing apparatus for machining a piston pin as defined in claim 1 wherein, The front of the workbench is provided with a base, the upper part of the base is fixedly provided with a vertical column, the upper part of the vertical column is fixedly provided with a middle frame, the inside of the middle frame is fixedly provided with a vibrator, the upper part of the middle frame is provided with a vibrating disc, the vibrating disc is fixedly connected with the vibrator, the rear part of the vibrating disc is fixedly provided with a feeding pipe, and the feeding pipe is in the same height with the material loading part.

4. A high efficiency roughing apparatus for machining a piston pin as defined in claim 1 wherein, The upper left side of the workbench is fixedly provided with a left cover, the upper right side of the workbench is fixedly provided with a right cover, the upper part of the left cover is fixedly provided with a water bucket, the upper part of the water bucket is provided with a hose, the end of the hose away from the water bucket is located above the first grinding wheel and the second grinding wheel, and the upper part of the right cover is fixedly provided with a control box.

5. A high efficiency roughing apparatus for machining a piston pin as defined in claim 1 wherein, The lower part between the first grinding wheel and the second grinding wheel is fixedly provided with a sliding channel, the vertical plate penetrates through the sliding channel, the intersection position between the sliding channel and the vertical plate is sealed, the sliding channel is inclined from front up to rear down, the rear part of the workbench is fixedly provided with a rear plate, the upper part of the rear plate is slidably provided with a material box, the lower end of the sliding channel is located above the material box, the both sides of the material box are provided with leak holes, and the front of the first grinding wheel and the second grinding wheel is slidably provided with a baffle.

6. A high efficiency roughing apparatus for machining a piston pin as defined in claim 1 wherein, The front of the workbench is provided with a socket and a main switch.