Tool for punching piston rod end

CN224642098UActive Publication Date: 2026-08-18NINGBO LUOFEIAO MASCH MFG CO LTD
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Patent Information

Application Number
CN202521984571.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-16
Publication Date
2026-08-18
Estimated Expiration
2035-09-16

AI Technical Summary

Technical Problem

[0003]在液压油缸等产品的制造中,常需对活塞杆端部进行冲孔以便连接,传统加工方式多采用人工操作通用设备进行钻孔或冲压,存在生产效率低、劳动强度大、加工一致性差的问题,且冲孔产生的金属碎屑需额外清理,不仅增加了工序,也影响了作业环境的整洁与安全

Benefits of technology

该活塞杆端部冲孔用工装通过驱动电机、链轮链条与双头螺纹杆的协同传动,实现了对活塞杆的自动对中与夹紧,夹持高效且稳定,保证了冲孔位置的准确性;同时,冲孔机集成于支撑套内,冲压过程刚性好,加工质量高;其创新性地集成了由同一电机驱动的碎屑刮取系统,通过往返丝杆带动刮板自动清理并收集碎屑,保持了工作环境整洁,提高了设备自动化程度与生产效率,减少了人工干预,非常适合活塞杆端部冲孔的大批量、连续化生产作业。

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Abstract

The utility model discloses a tool for punching the end of piston rod, including punch box body, the fixed sleeve is fixedly connected with the fixed sleeve inner wall right end rear side in punch box body, the drive motor is fixedly connected with the fixed sleeve inner wall, the drive motor output is fixedly connected with the driving sprocket, the driving sprocket outer wall is engaged with the first chain. The utility model, through the cooperative drive of drive motor, sprocket chain and stud bolt, has realized the automatic centering and clamping of piston rod, and the clamping is efficient and stable, guarantees the accuracy of punching position, simultaneously, the punch press is integrated in the support sleeve, and the stamping process is rigid, and the machining quality is high, the scrap scraping system driven by the same motor is innovatively integrated, the scrap is automatically cleaned and collected through the reciprocating screw rod driving scraper, keeps the working environment neat, improves the degree of automation and production efficiency of equipment, reduces manual intervention, is very suitable for the mass production operation of the end of piston rod punching.
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Description

Technical Field

[0001] This utility model relates to the field of punching tooling production technology, and in particular to a tooling for punching the end of a piston rod. Background Technology

[0002] The piston rod end punching fixture is a specialized clamping device used for punching holes at the ends of piston rods. It uses a drive motor to power a sprocket and a double-threaded rod mechanism to automatically center and clamp the piston rod, allowing a punching machine to perform the precise punching operation. This fixture innovatively integrates an automatic chip removal system, which simultaneously collects metal chips generated during processing, effectively improving production efficiency, ensuring processing quality, and maintaining a clean working environment. It is particularly suitable for the high-volume, high-consistency production requirements of piston rod ends in products such as hydraulic cylinders.

[0003] In the manufacturing of products such as hydraulic cylinders, it is often necessary to punch holes at the end of the piston rod for connection. Traditional processing methods mostly use manual operation of general equipment for drilling or punching, which has problems such as low production efficiency, high labor intensity, and poor processing consistency. In addition, the metal shavings generated by punching need to be cleaned up, which not only increases the number of processes, but also affects the cleanliness and safety of the working environment.

[0004] Therefore, how to provide tooling for punching the piston rod end is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] One objective of this invention is to provide a tooling for punching holes at the end of a piston rod. Through the coordinated transmission of a drive motor, sprockets, chains, and a double-threaded rod, automatic centering and clamping of the piston rod are achieved, resulting in efficient and stable clamping and ensuring the accuracy of the punching position. Simultaneously, the punching machine is integrated into a support sleeve, ensuring good rigidity and high processing quality during the punching process. It innovatively integrates a debris scraping system driven by the same motor, which automatically cleans and collects debris via a reciprocating screw-driven scraper, maintaining a clean working environment, improving the automation level and production efficiency of the equipment, and reducing manual intervention. This is highly suitable for large-scale, continuous production operations of punching holes at the end of piston rods, thus solving the problems mentioned in the background art.

[0006] According to an embodiment of the present invention, a tooling for punching the piston rod end includes a punching box. A fixing sleeve is fixedly connected to the rear right side of the inner wall of the punching box. A drive motor is fixedly connected to the inner wall of the fixing sleeve. A drive sprocket is fixedly connected to the output end of the drive motor. A first chain is meshed with the outer wall of the drive sprocket. A driven sprocket is meshed with the front end of the inner wall of the first chain. A double-threaded rod is fixedly connected to the middle left side of the driven sprocket.

[0007] As a preferred embodiment of this utility model: a second driving sprocket is fixedly connected to the middle of the right side of the driven sprocket, and a transmission chain is meshed with the outer wall of the second driving sprocket.

[0008] As a further preferred embodiment of this utility model: a second driven sprocket is engaged with the bottom end of the inner wall of the transmission chain, and a reciprocating lead screw is fixedly connected to the outer wall of the second driven sprocket.

[0009] As a further preferred embodiment of this utility model: the left end of the reciprocating lead screw is rotatably connected to the punching box, a scraping plate is threadedly connected to the outer wall of the reciprocating lead screw, and the bottom end of the scraping plate is slidably connected to the chip removal plate.

[0010] As a further preferred embodiment of this utility model: both sides of the outer wall of the double-headed threaded rod are threadedly connected to movable plates, and clamping blocks are fixedly connected to the upper and lower sides of the front end of the outer wall of the movable plates.

[0011] As a further preferred embodiment of this utility model: guide rods are slidably connected to both the upper and lower sides of the outer wall of the movable plate, and the two ends of the guide rods are fixedly connected to the punching box body.

[0012] As a further preferred embodiment of this utility model: a support sleeve is fixedly connected to the middle of the top of the punching box, and a punching machine is fixedly connected to the inner wall of the support sleeve.

[0013] As a further preferred embodiment of this utility model: a chip removal plate is fixedly connected to the bottom end of the punching box, a collection box is provided at the bottom end of the chip removal plate, and a movable observation door is provided at the front end of the punching box.

[0014] The beneficial effects of this utility model are: The piston rod end punching fixture achieves automatic centering and clamping of the piston rod through the coordinated transmission of a drive motor, sprocket chain, and double-threaded rod. The clamping is efficient and stable, ensuring the accuracy of the punching position. At the same time, the punching machine is integrated into the support sleeve, providing good rigidity during the punching process and high processing quality. It innovatively integrates a debris scraping system driven by the same motor. The reciprocating screw drives the scraper to automatically clean and collect debris, keeping the working environment clean, improving the automation level and production efficiency of the equipment, and reducing manual intervention. It is very suitable for large-scale, continuous production operations of piston rod end punching. Attached Figure Description

[0015] 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 front view schematic diagram of the overall structure of the tooling for punching holes at the end of the piston rod proposed in this utility model.

[0016] Figure 2 This is a three-dimensional schematic diagram of the inner wall structure of the punching box of the tooling for punching the piston rod end proposed in this utility model.

[0017] Figure 3 This is a top view of the internal structure of the punching box of the tooling for punching the piston rod end proposed in this utility model.

[0018] Figure 4 This is a three-dimensional structural diagram of the clamping assembly of the tooling for punching holes at the end of the piston rod proposed in this utility model.

[0019] Figure 5 This is a side view of the three-dimensional structure of the transmission component of the tooling for punching holes at the end of the piston rod proposed in this utility model.

[0020] The attached diagram shows: 1. Punching box; 2. Drive chain; 3. Chip conveyor plate; 4. Collection box; 5. Support sleeve; 6. Punching machine; 7. Movable observation door; 8. Clamping block; 9. Double-ended threaded rod; 10. Moving plate; 11. Reciprocating screw; 12. Scraper; 13. First chain; 14. Drive sprocket; 15. Guide rod; 16. Fixed sleeve; 17. Driven sprocket; 18. Second drive sprocket; 19. Second driven sprocket; 20. Drive motor. 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 2 , Figure 3 , Figure 4 , Figure 5 As shown, the tooling for punching the piston rod end includes a punching box 1. A fixing sleeve 16 is fixedly connected to the rear right side of the inner wall of the punching box 1. A drive motor 20 is fixedly connected to the inner wall of the fixing sleeve 16. A drive sprocket 17 is fixedly connected to the output end of the drive motor 20. A first chain 13 is meshed with the outer wall of the drive sprocket 17. A driven sprocket 14 is meshed with the front end of the inner wall of the first chain 13. A double-threaded rod 9 is fixedly connected to the middle left side of the driven sprocket 14. Both sides of the outer wall of the double-threaded rod 9 are threaded. A movable plate 10 is connected to the punch box 1. Clamping blocks 8 are fixedly connected to the upper and lower sides of the front end of the outer wall of the movable plate 10. Guide rods 15 are slidably connected to the upper and lower sides of the outer wall of the movable plate 10. The two ends of the guide rods 15 are fixedly connected to the punch box 1. A support sleeve 5 is fixedly connected to the middle of the top of the punch box 1. A punching machine 6 is fixedly connected to the inner wall of the support sleeve 5. A chip removal plate 3 is fixedly connected to the bottom of the punch box 1. A collection box 4 is provided at the bottom of the chip removal plate 3. An movable observation door 7 is provided at the front end of the punch box 1.

[0023] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, a second driving sprocket 18 is fixedly connected to the middle right side of the driven sprocket 14. A transmission chain 2 is meshed with the outer wall of the second driving sprocket 18. A second driven sprocket 19 is meshed with the bottom end of the inner wall of the transmission chain 2. A reciprocating screw 11 is fixedly connected to the outer wall of the second driven sprocket 19. The left end of the reciprocating screw 11 is rotatably connected to the punching box 1. A scraper 12 is threadedly connected to the outer wall of the reciprocating screw 11. The bottom end of the scraper 12 is slidably connected to the chip removal plate 3.

[0024] Working principle: First, the piston rod is placed between the clamping blocks 8 on both sides. The drive motor 20 is started, causing the output sprocket 17 to rotate. The rotation of the drive sprocket 17 causes the first chain 13 on the outer wall to rotate, which in turn causes the driven sprocket 14 at the front end of the inner wall to rotate. The rotation of the driven sprocket 14 causes the double-threaded rod 9 on the outer wall to rotate, which in turn causes the moving plates 10 on both sides of the outer wall to move. The movement of the moving plates 10 causes the clamping blocks 8 on the adjacent side to move, thus clamping the piston rod between them. Then... The piston rod is punched by the punching machine 6. Then, the driven sprocket 14 drives the double-headed threaded rod 9 to rotate, which in turn drives the second driving sprocket 18 to rotate. The rotation of the second driving sprocket 18 drives the transmission chain 2 on the outer wall to rotate. The rotation of the transmission chain 2 drives the second driven sprocket 19 at the bottom of the inner wall to rotate. The rotation of the second driven sprocket 19 drives the reciprocating screw 11 to rotate. The rotation of the reciprocating screw 11 drives the scraping plate 12 on the outer wall to move, which can scrape the debris generated by punching. The scraped debris is discharged into the collection box 4 through the through hole on the outer wall of the chip discharge plate 3 for easy collection.

[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 tooling for punching holes at the end of a piston rod, characterized in that, The device includes a punching box (1), a fixed sleeve (16) is fixedly connected to the rear right side of the inner wall of the punching box (1), a drive motor (20) is fixedly connected to the inner wall of the fixed sleeve (16), a drive sprocket (17) is fixedly connected to the output end of the drive motor (20), a first chain (13) is meshed with the outer wall of the drive sprocket (17), a driven sprocket (14) is meshed with the front end of the inner wall of the first chain (13), and a double-headed threaded rod (9) is fixedly connected to the middle left side of the driven sprocket (14).

2. The tooling for punching the piston rod end according to claim 1, characterized in that, The driven sprocket (14) is fixedly connected to the middle right side of the second driving sprocket (18), and the outer wall of the second driving sprocket (18) is meshed with a transmission chain (2).

3. The tooling for punching the piston rod end according to claim 2, characterized in that, The inner wall of the transmission chain (2) is meshed with a second driven sprocket (19), and the outer wall of the second driven sprocket (19) is fixedly connected with a reciprocating screw (11).

4. The tooling for punching the piston rod end according to claim 3, characterized in that, The left end of the reciprocating lead screw (11) is rotatably connected to the punching box (1), and a scraper (12) is threadedly connected to the outer wall of the reciprocating lead screw (11). The bottom end of the scraper (12) is slidably connected to the chip removal plate (3).

5. The tooling for punching the piston rod end according to claim 1, characterized in that, The double-headed threaded rod (9) has a moving plate (10) threadedly connected to both sides of its outer wall, and a clamping block (8) is fixedly connected to both the upper and lower sides of the front end of the moving plate (10).

6. The tooling for punching the piston rod end according to claim 5, characterized in that, The upper and lower sides of the outer wall of the movable plate (10) are slidably connected with guide rods (15), and the two ends of the guide rods (15) are fixedly connected to the punch box (1).

7. The tooling for punching the piston rod end according to claim 1, characterized in that, A support sleeve (5) is fixedly connected to the top center of the punching box (1), and a punching machine (6) is fixedly connected to the inner wall of the support sleeve (5).

8. The tooling for punching the piston rod end according to claim 7, characterized in that, The bottom end of the punching box (1) is fixedly connected to a chip removal plate (3), and a collection box (4) is provided at the bottom end of the chip removal plate (3). The front end of the punching box (1) is provided with an movable observation door (7).