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Stamping die for wiper support tube

A support tube and wiper technology, applied in the field of wiper support tube punching and riveting molds, can solve the problems of inconvenient maintenance and replacement of punches, lower position accuracy of finished products, and high mold manufacturing costs, so as to facilitate maintenance and replacement, improve position accuracy, Mold composition simple effect

Active Publication Date: 2022-01-18
SICHUAN FUJI ELECTRIC MOTOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to ensure the position accuracy after stamping connection, the joint needs to be positioned and clamped during stamping. The existing positioning methods are as follows: Figure 11 As shown, the joint is positioned and clamped by screw compression, and the screw needs to be disassembled every time a support tube is produced, so the production efficiency is low; and the operator puts his hand into the middle of the mold for a long time to disassemble and assemble There is a high risk in the operation; when the screw is rotated for compression, it is easy to drive the wiper joint to rotate together, which will change the position of the wiper joint and the pipe fittings, reducing the positional accuracy of the finished product
[0004] and if Figure 11 As shown, the main body of the existing stamping die is made of four pressing plates, the middle two pressing plates are used to install the clamping block, and the two outer pressing plates are used to install the punch, so that the punch passes through the clamping block and the middle The two plates of the support tube are connected by stamping. The position of the mold clamping block and the punch of this structure is fixed, which can only correspond to the production of a support tube of one structure, and the mold is large in size and heavy in weight, which is not easy to replace. The head is also inconvenient to maintain and replace, and the overall production cost of the mold is relatively high

Method used

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  • Stamping die for wiper support tube
  • Stamping die for wiper support tube
  • Stamping die for wiper support tube

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] like Figure 1-11 As shown, a riveting die for a wiper support tube includes an upper die plate 11 , a lower die plate 12 , a clamping mechanism 20 and a punching assembly 30 .

[0046] Specifically, the opposite surfaces of the upper template 11 and the lower template 12 are machined with chutes. The overall mechanism of the upper template 11 and the lower template 12 and the structure of the sliding groove are the same. The sliding groove is a T-shaped groove structure. The length direction of the template 12 is set, and the axis of the pipe fitting 4 is parallel to the chute when the wiper support pipe is placed;

[0047] Specifically, the clamping mechanism 20 is provided with a pair. The clamping mechanism 20 includes a fixing base 21 and a pressing block 22 . The fixed shaft 211 and the anti-rotation shaft 212, the common wiper joint 1 is provided with a bearing hole 2, which is used to install the rotating shaft bearing of the wiper. When the wiper joint 1 is cl...

Embodiment 2

[0054] The structure and working principle of the stamping assembly will be further described here with reference to the accompanying drawings. The elastic element 34 is a pressure spring, a spring seat hole 35 is machined on the abutting surface of the assembly bottom plate 33 and the guide block 31, the elastic element 34 is arranged in the spring seat hole 35, and the bottom of the spring seat hole 35 of the guide block 31 is coaxially machined with threads Hole 313, the spring seat hole 35 of the assembly bottom plate 33 is coaxially machined with a counterbore 331, a bottom plate through hole 332 is machined through the shaft between the counterbore 331 and the spring seat hole 35, and the guide screw 36 passes through the counterbore 331 and the bottom plate in sequence. The through hole 332 and the elastic element 34 are connected to the threaded hole 313. Only the front end of the guide screw 36 that matches the threaded hole 313 is a threaded mechanism, and the rest of...

Embodiment 3

[0056] like Figure 4 As shown, the fixed seat 21 includes a connecting plate 213, and the connecting plate 213 is provided with a connecting block 214. The connecting block 214 can be designed as a rectangular structure or a cylindrical structure. The top surface of the connecting block 214 is used to support the wiper joint 1, and the fixed shaft 211 It is detachably arranged on the top of the connecting block 214, and the fixed shaft 211 is connected with the connecting block 214 by means of threaded connection. In order to facilitate the rotation of the fixed shaft 211, parallel notch planes are processed on the peripheral side of the fixed shaft 211, which is convenient for turning with a wrench. Fixed shaft 211 .

[0057] A rectangular hole 2141 is formed in the connecting block 214 perpendicular to the direction of the fixed shaft 211 . The rectangular hole 2141 is parallel to the chute of the lower template 12 , and a rectangular bar 215 is slid in the rectangular hole...

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PUM

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Abstract

The utility model relates to a die for punching and riveting of a support tube of a wiper. Slide grooves are processed on the opposite surfaces of the upper template and the lower template. The clamping mechanism includes: the fixed seat slides in the chute of the lower template, the fixed seat is provided with a fixed shaft and an anti-rotation shaft perpendicular to the lower template, and the distance between the fixed shaft and the anti-rotation shaft is adjustable; the pressure block is slid on the upper template In the chute, the projection of the pressing block along the axis of the fixed shaft covers the fixed shaft, and the pressing block can move along the axis of the fixed shaft. The stamping assembly is equipped with a pair of corresponding clamping mechanisms. The stamping assembly includes: a semicircular hole is processed on the bottom surface of the guide block, and a plurality of guide holes are processed perpendicular to the bottom surface, and the projection of the guide hole on the bottom surface of the guide block is located in the semicircle hole; On the bottom plate of the component, the punch passes through the guide hole, and an elastic element is arranged between the bottom plate of the component and the guide block. When punching, the front end of the punch is inserted into the semicircular hole. When it is not working, the front end of the punch is hidden in the guide hole. The structure is simple, the clamping efficiency and precision are high, and it can be used for punching and riveting work of various support tubes.

Description

technical field [0001] The invention belongs to the field of wiper production, in particular to a punching and riveting die for a support tube of a wiper. Background technique [0002] Commonly used wiper support tubes are usually designed in two parts in order to reduce weight while taking into account structural features and strength, such as Figure 10 As shown, the middle part adopts thin-walled pipe fittings, and the two ends adopt casting joints with better molding strength, and then the pipe fittings and joints are connected by stamping. [0003] In order to ensure the position accuracy after stamping connection, the joint needs to be positioned and clamped during stamping. The existing positioning methods are as follows: Figure 11 As shown, the joint is positioned and clamped by screw compression, and the screw needs to be disassembled every time a support tube is produced, so the production efficiency is low; and the operator puts his hand into the middle of the mo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D39/00B21D37/10B21D43/00B21D53/88
CPCB21D39/00B21D37/10B21D43/003B21D53/88
Inventor 范成志张家海李发友刘锷瞿金强杨旭东
Owner SICHUAN FUJI ELECTRIC MOTOR