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Stamping method for improving elasticity of spring piece

A spring sheet and elastic technology, which is applied in the field of metal cold stamping, can solve the problems of wasting materials and weak product elasticity, and achieve the effects of ensuring technical requirements, prolonging service life, and increasing elasticity

Inactive Publication Date: 2012-01-25
SUZHOU RISING CREATION PRECISION TOOLS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the shortcomings of the existing spring sheet production that adopts a straight row method to discharge materials, resulting in waste of materials and weak product elasticity

Method used

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  • Stamping method for improving elasticity of spring piece
  • Stamping method for improving elasticity of spring piece
  • Stamping method for improving elasticity of spring piece

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] to combine figure 1 and figure 2 Illustrate a kind of stamping method that improves spring leaf elasticity of the present invention, comprises the steps:

[0023] (1) Blanking: the mold punches the pre-processed metal sheet in an oblique manner to make the blanking finished product;

[0024] (2) Forming: Bending and forming the blanked finished product after blanking to make a spring piece 1;

[0025] (3) Demoulding: Blow the spring piece 1 out of the mold.

[0026] The oblique arrangement means that the setting direction of the mold forms an included angle with the grain direction of the pre-processed metal sheet, and the included angle is 15°-80°, preferably 30°.

[0027] The mold used for stamping includes a matching punch and die. The punch includes a blanking upper die and a bending upper die. The bending upper die is fixed at the corresponding position of the punch according to the stamping process sequence. The concave mold includes a blanking concave mold a...

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Abstract

The patent discloses a stamping method for improving the elasticity of a spring piece and relates to the technical field of cold stamping of metal. The stamping method is designed against the problems that the direct arrangement way is adopted for material arrangement during the existing production of the spring pieces, thereby causing the waste of materials and the phenomenon of weak elasticity of the spring pieces. The stamping method comprises the following steps of: (1) blanking: using a die to blank a metal plate which needs to be subjected to pre-processing in an oblique arrangement way so as to prepare a blanking finished product; (2) forming: performing bending forming on the blanking finished product after blanking so as to prepare the spring piece; and (3) stripping: blowing the spring piece out of the die. The stamping method is particularly suitable for processing the spring pieces for various types of batteries.

Description

technical field [0001] The invention relates to the technical field of metal cold stamping, in particular to a stamping method capable of improving the elasticity of battery spring sheets. Background technique [0002] The battery spring is an important part of the battery and is made of materials such as copper, iron or stainless steel. When the battery spring piece installed on the conductive film is pressed, the center point of the spring piece contacts the PCB board to form a loop, which has the characteristics of strong conductivity, good elasticity, and no breakage after frequent use. [0003] The battery spring sheet is mainly made by molding the thin steel plate, and the orientation of the grains of the thin steel plate moves along a certain route during the rolling process. The greater the difference Δr in the planar directionality coefficient of the plate (mainly affected by the crystal orientation, followed by the rolling direction), the greater the angle between...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D35/00B21D45/06B21D37/10
Inventor 余桂萍
Owner SUZHOU RISING CREATION PRECISION TOOLS
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