Riveting tool suitable for pressure clamp

Abstract

The utility model discloses a riveting tool suitable for a pressure clamp, belongs to the technical field of wiper motors, and solves the problem of low fixing efficiency due to the fact that a supporting seat and a support rod of a wiper motor are fixed through glue in the research and development process. The riveting blocks are respectively fixed on two opposite sides of the clamping end of the pressure clamp, the two riveting blocks are both of an arc-shaped plate structure, and the inner ring surface of each riveting block is at least provided with a crimping plate used for pressing the outer wall of the support rod into the groove of the supporting seat. According to the utility model, the riveting block is arranged in the pressure clamp to realize riveting of the bracket rod and the end part of the supporting seat, and the bracket rod and the supporting seat are respectively positioned through the positioning pin and the limiting rod, so that samples of the bracket rod and the supporting seat can be quickly riveted and fixed; the problems that in the research and development process of the support rod and the supporting seat, structural adhesive is used for fixing, so that the fixing efficiency is low, and much waste is generated are solved.

Description

Technical Field

[0001] This utility model relates to the field of wiper motor technology, specifically to a riveting fixture suitable for pressure clamps. Background Technology

[0002] The wiper motor includes a support base and a bracket rod. The bracket rod is hollow inside and open at both ends. During the development of new products, for various samples of support bases and bracket rods, the existing technology is to directly fix the samples of support bases and bracket rods with glue. It takes about 2 hours for the support base and bracket rod to reach the strength to remove the tooling. The fixing efficiency is very low, and there is a very unpleasant volatile odor during the curing process. All tools that come into contact with the glue during the glue mixing process are disposable, generating a large amount of waste. Utility Model Content

[0003] To address the aforementioned problems in the prior art, this utility model provides a riveting fixture suitable for pressure clamps, which solves the problem of low fixing efficiency when fixing the wiper motor support and bracket rod with glue during the research and development process.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A riveting fixture suitable for pressure clamps is provided, comprising riveting blocks fixed on opposite sides of the clamping end of the pressure clamp, both riveting blocks being arc-shaped plate structures, and each riveting block having at least one pressing plate on its inner ring surface for pressing the outer wall of a support rod into a groove in the support seat; each riveting block having a through hole that mates with a locating pin on its ring wall surface, and a limit hole through the support rod, the locating pin being clearance-fitted with both through holes and the limit hole; each riveting block having a limit opening on its end face away from the through hole, and a limit rod being provided on the support seat, with both ends of the limit rod placed in the two limit openings respectively.

[0006] The beneficial effects of this solution are as follows: by installing the riveting block in the pressure clamp to achieve the riveting of the bracket rod and the support seat end, and using the positioning pin and limit rod to position the bracket rod and support seat respectively, the sample of the bracket rod and support seat can be quickly fixed. This not only solves the problems of low fixing efficiency and excessive waste caused by using structural adhesive for fixing during the development of bracket rods and support seats, but also simulates the riveting process of large hydraulic equipment in mass production, ensuring that the connection effect of the sample is consistent with the riveting quality of large hydraulic equipment in mass production, providing a reliable basis for subsequent mass production process verification. At the same time, it eliminates the cost of developing special hydraulic tooling for various samples, significantly shortening the R&D cycle and reducing trial production costs. The pressure clamp was originally a special tool for crimping electrical cable noses, which is small in size and easy to use. The riveting tooling in this solution increases the riveting capability of the pressure clamp in non-electrical environments, expanding the application scenarios of the pressure clamp and making it suitable for fixing small batches of samples.

[0007] Further, the pressure clamp is an electric hydraulic clamp. The electric hydraulic clamp provides stable and adjustable pressure output, ensuring uniform pressure during the riveting process and avoiding loose riveting or workpiece damage caused by manual operation.

[0008] Further, the clamping end includes piston blocks and fixed blocks both provided with arc grooves, and two riveting blocks are respectively fixed on the piston blocks and the fixed blocks. The arc groove structures of the piston blocks and the fixed blocks are adapted to the arc plates of the riveting blocks.

[0009] Further, stepped grooves are provided on both sides of the outer ring surface ends of the two riveting blocks, and flanges for supporting the stepped grooves are provided on both sides of the inner ring surface ends of the piston blocks and the fixed blocks. The cooperation between the flanges and the stepped grooves facilitates the installation of the riveting blocks.

[0010] Further, limiting grooves are provided on the tops of the outer ring surfaces of the two riveting blocks, and limiting protrusions inserted into the limiting grooves are provided on the tops of the inner ring surfaces of the piston blocks and the fixed blocks. The arrangement of the limiting protrusions and the limiting grooves further increases the positioning surfaces and improves the installation accuracy of the riveting blocks.

[0011] Further, each crimping plate is an arched plate integrally formed with the riveting block, and through grooves in the shape of a "convex" character are provided on the end faces of the arched plates. The integrally formed design avoids stress concentration caused by welding or assembly seams and extends the service life.

[0012] Further, rounded corners are provided at the bends on both sides of the through groove. The rounded corners reduce the sharp angles at the edges of the through groove and lower the risk of fracture caused by stress concentration during riveting.

[0013] Further, one end of the positioning pin is a conical structure, and a limiting head is provided at the other end. The conical structure simplifies the process of inserting the positioning pin and eliminates the need for additional alignment tools, improving the assembly efficiency. Description of the Drawings

[0014] Figure 1 is a schematic structural diagram of the riveting tooling;

[0015] Figure 2 is a schematic structural diagram of the clamping end of the pressure clamp;

[0016] Figure 3 is a schematic structural diagram of the crimping plate;

[0017] Figure 4 is a schematic structural diagram of the limiting groove;

[0018] Figure 5 is a schematic structural diagram of the piston block;

[0019] Figure 6 is a schematic structural diagram of the support seat;

[0020] Wherein: 100, riveting block; 11, pressing plate; 12, positioning pin; 13, limiting opening; 14, stepped groove; 15, limiting groove; 200, clamping end; 21, piston block; 211, flange; 212, limiting projection; 22, fixing block; 300, support rod; 400, support seat; 41, limiting rod; 42, groove; 421, counterbore. Specific embodiments

[0021] The specific embodiments of the present utility model will be described below to facilitate those skilled in the art of this technical field to understand the present utility model. However, it should be clear that the present utility model is not limited to the scope of the specific embodiments. For those of ordinary skill in this technical field, as long as various changes are within the spirit and scope of the present utility model defined and determined by the appended claims, these changes are obvious, and all utility models created using the concept of the present utility model are within the scope of protection.

[0022] During the research and development of the support seat 400 and the support rod 300, for various samples of the support seat 400 and the support rod 300 of the windshield wiper motor, the prior art fixes the support seat 400 and the support rod 300 with glue, resulting in the problem of low fixing efficiency. To solve this problem, in this application, the riveting of the end of the support rod 300 and the support seat 400 is achieved by installing the riveting block 100 in a pressure clamp, and the support rod 300 and the support seat 400 are respectively positioned by the positioning pin 12 and the limiting rod 41, achieving the effect of rapid fixing.

[0023] Reference Figure 1 and Figure 2 , this embodiment provides a riveting tooling applicable to a pressure clamp, which includes two riveting blocks 100, and the two riveting blocks 100 are respectively fixed on the riveting blocks 100 on the opposite sides of the clamping end 200 of the pressure clamp. Both of the two riveting blocks 100 are arc-shaped plate structures, and at least one pressing plate 11 for pressing the outer wall of the support rod 300 into the groove 42 of the support seat 400 is provided on the inner ring surface of both of the two riveting blocks 100.

[0024] In this embodiment, the number of the pressing plates 11 is two, and the two pressing plates 11 are symmetrically arranged on each riveting block 100. The specific structure of the pressing plate 11 can refer to Figure 3 , each pressing plate 11 is an arch-shaped plate integrally formed with the riveting block 100, and a through groove in the shape of a "convex" character is provided on the end surface of the arch-shaped plate. Fillets are provided at the bending parts on both sides of the through groove. The fillets reduce the sharp angles at the edges of the through groove and reduce the risk of fracture caused by stress concentration during riveting. The number of the grooves 42 of the support seat 400 corresponds to that of the pressing plates 11, and is also two. Reference Figure 5Each groove 42 includes two symmetrical recesses 421, and the bends on both sides of the through groove on each pressing plate 11 are used to press into the two recesses 421 respectively.

[0025] Preferably, the pressure clamp in this embodiment is a C-type opening electro-hydraulic clamp, model ED-400U. The clamping end 200 of the pressure clamp includes a piston block 21 and a fixing block 22, both of which are provided with arc-shaped grooves. Two riveting blocks 100 are respectively fixed on the piston block 21 and the fixing block 22. The arc-shaped groove structure of the piston block 21 and the fixing block 22 is adapted to the arc-shaped plate of the riveting block 100.

[0026] To facilitate the installation of the two riveting blocks 100 on the piston block 21 and the fixing block 22, refer to... Figure 4 and Figure 5 Both outer annular surfaces of the two riveting blocks 100 have stepped grooves 14 on both sides, and the inner annular surfaces of the piston block 21 and the fixing block 22 have flanges 211 on both sides to support the stepped grooves 14. The top of the outer annular surfaces of both riveting blocks 100 has a limiting groove 15, and the top of the inner annular surfaces of the piston block 21 and the fixing block 22 has a limiting protrusion 212 for inserting into the limiting groove 15. The limiting protrusion 212 and the limiting groove 15 further increase the positioning surface and improve the installation accuracy of the riveting blocks 100.

[0027] To facilitate the positioning of the support base 400 and the bracket rod 300, refer to Figure 1 , Figure 4 and Figure 6 Both rivet blocks 100 have through holes on their annular walls that mate with the positioning pins 12. A limiting hole is provided through the support rod 300. The positioning pins 12 are clearance-fitted with both through holes and the limiting holes. Limiting openings 13 are provided on the end faces of both rivet blocks 100 away from the through holes. A limiting rod 41 is provided on the support seat 400, with both ends of the limiting rod 41 positioned in the two limiting openings 13. To facilitate the insertion of the positioning pins 12 into the through holes and limiting holes, one end of the positioning pin 12 has a tapered structure, and the other end has a limiting head.

[0028] Although the specific embodiments of the utility model have been described in detail with reference to the accompanying drawings, this should not be construed as limiting the scope of protection of this patent. Various modifications and variations that can be made by those skilled in the art without inventive effort within the scope described in the claims still fall within the scope of protection of this patent.

Claims

1. A riveting fixture suitable for pressure clamps, characterized in that, It includes riveting blocks (100) respectively fixed on the opposite sides of the clamping end (200) of the pressure pliers. Both of the two riveting blocks (100) are arc-shaped plate structures. On the inner ring surfaces of the two riveting blocks (100), there is at least one crimping plate (11) for pressing the outer wall of the support rod (300) into the support seat (400). Through holes for cooperating with the positioning pins (12) are formed on the circumferential wall surfaces of the two riveting blocks (100). A limiting hole is formed through the support rod (300). The positioning pins (12) are in clearance fit with the two through holes and the limiting hole. Limiting openings (13) are formed on the end faces of the two riveting blocks (100) away from the through holes. A limiting rod (41) is arranged on the support seat (400), and the two ends of the limiting rod (41) are respectively placed in the two limiting openings (13).

2. The riveting fixture suitable for pressure clamps according to claim 1, characterized in that, The pressure pliers are electric hydraulic pliers.

3. The riveting fixture suitable for pressure clamps according to claim 2, characterized in that, The clamping end (200) includes a piston block (21) and a fixed block (22) both provided with arc-shaped grooves. The two riveting blocks (100) are respectively fixed on the piston block (21) and the fixed block (22).

4. The riveting fixture suitable for pressure clamps according to claim 3, characterized in that, Step grooves (14) are formed on both sides of the outer ring surface ends of the two riveting blocks (100). Flanges (211) for supporting the step grooves (14) are arranged on both sides of the inner ring surface ends of the piston block (21) and the fixed block (22).

5. The riveting fixture suitable for pressure clamps according to claim 3, characterized in that, Limiting grooves (15) are arranged on the tops of the outer ring surfaces of the two riveting blocks (100). Limiting protrusions (212) inserted into the limiting grooves (15) are arranged on the tops of the inner ring surfaces of the piston block (21) and the fixed block (22).

6. The riveting fixture for pressure clamps according to claim 1, characterized in that, Each crimping plate (11) is an arched plate integrally formed with the riveting block (100). Through grooves in a "convex" shape are formed on the end faces of the arched plates.

7. The riveting fixture suitable for pressure clamps according to claim 6, characterized in that, Round corners are arranged at the bends on both sides of the through grooves.

8. The riveting fixture for pressure clamps according to claim 1, characterized in that, One end of the positioning pin (12) is a conical structure, and a limiting head is arranged at the other end.

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