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Optimized stamping process for diaphragm spring with DST (direct solution treatment) structure

A stamping and leaf spring technology, applied in the field of optimized stamping process of DST structure diaphragm spring, can solve the problems of low product dimensional accuracy, low production efficiency, and many technological processes, and achieves elimination of errors, improvement of fatigue life, extraction of The effect of efficiency

Active Publication Date: 2013-05-01
GUILIN FUDA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the DST diaphragm spring usually adopts the process of punching the middle hole → punching the window → punching the separation finger → squeezing the fillet of the window → the outer fillet of the car and turning to the heat treatment process. The process is many and single, and the production efficiency is low. , the product size accuracy is not high

Method used

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  • Optimized stamping process for diaphragm spring with DST (direct solution treatment) structure
  • Optimized stamping process for diaphragm spring with DST (direct solution treatment) structure

Examples

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Embodiment Construction

[0021] refer to figure 1 , the DST structure diaphragm spring blanking, punching hole, and window mold of the present invention include an upper template 1, a screw 2, an upper backing plate 3, a punch fixing plate 4, a die holding plate 5, a die 6, Window punch 7, upper unloading plate 8, lower unloading plate 9, middle hole punch 10, unloading screw 11, convex and concave die 12, lower backing plate 13, lower template 14, rubber 15, stopper pin 16, guide post 17 , guide sleeve 18 and cylindrical pin 19, window punch 7 and center hole punch 10 are fixed on the punch fixing plate 4, the die 6 is connected and fixed on the punch fixing plate 4 by screws 2 and the die holding plate 5 is held tightly , in order to prevent the sheets from being stuck, an upper unloading plate 8, a lower unloading plate 9 and an unloading screw 11 are also provided. The upper unloading plate 8 is fixed on the punch fixing plate 4 through the unloading screw 11, and the lower unloading plate The pl...

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Abstract

The invention discloses an optimized stamping process for a diaphragm spring with a DST structure, comprising the following steps of: placing a wear-free 50CrVA cold-rolled sheet on a punch press to blank and stamp a mesopore, blanking a diaphragm outer circle shape, a mesopore and a window shape with gaps by a window mould, then stamping a separated finger slot at one time on the punch press viaa separated finger slot stamping die; directly pressing a window fillet at one time on a press via a window fillet mould; and finally performing heat treatment according to a conventional method. In the invention, the two separated procedures of blanking and stamping a mesopore and a window are combined into one procedure to process, which increases the production efficiency, decreases the production cost, decreases the accumulated error of a plurality of procedures and increases the dimensional precision of product; moreover, the problems of unreasonable distribution, non-uniform separated finger width, bad window positional tolerance and the like of diaphragm spring processing are solved; moreover, the product fatigue life is greatly increased; and shaking phenomenon while starting is avoided.

Description

technical field [0001] The invention relates to the processing of DST diaphragm springs, in particular to the optimized stamping process of DST structure diaphragm springs. Background technique [0002] The diaphragm spring is an indispensable part of the automobile clutch. Its life and performance have a great influence on the quality of the clutch. Especially the clutch with DST structure has higher requirements. It can be said that the quality of the diaphragm spring is the quality of the clutch. Bad. At present, the DST diaphragm spring usually adopts the process of punching the middle hole → punching the window → punching the separation finger → squeezing the fillet of the window → the outer fillet of the car and turning to the heat treatment process. The process is many and single, and the production efficiency is low. , The product size accuracy is not high. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D35/00B21D37/10
Inventor 梁广才钟建军吴天生
Owner GUILIN FUDA
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