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Method for precision plastic forming and precision heat treatment of waveform elastic element

A technology of elastic element and plastic forming, which is applied in the field of precision plastic forming and precision heat treatment of QBe2 beryllium bronze wave elastic element, which can solve the problems of wave elastic element elastic force and height dimension control, poor stability and other problems, so as to facilitate the selection of elastic force and elastic force The effect of good consistency, improving efficiency and quality

Active Publication Date: 2015-03-25
NANJING CHENGUANG GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a method for precise plastic forming and precise heat treatment of corrugated elastic elements to solve the technical problems of elastic force and height dimension control and poor stability of corrugated elastic elements

Method used

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  • Method for precision plastic forming and precision heat treatment of waveform elastic element
  • Method for precision plastic forming and precision heat treatment of waveform elastic element
  • Method for precision plastic forming and precision heat treatment of waveform elastic element

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047]A molding force control device for precision components, including a support pad 1, a spring 2, a support body 4, an adjustment gasket 5, and a limit block 6; the support body 4 includes a base and side walls perpendicular to the base and arranged at both ends of the base , between the side walls specifically match with the side length of the support pad 1, so that the support pad 1 can slide up and down along the side wall of the support body 4, and the base of the support pad 1 and the support body 4 is provided with Four springs 2, the support pad 1 is limited in the direction parallel to the base of the support body 4 through the limit rod passing through it, the diameter of the limit rod matches the opening aperture on the support pad 1, and is fixed on The base of the support body 4, the two ends of the limit rod protrude from the support plate 1 and the base of the support body 4 under the uncompressed state of the spring 2, the extended part of the limit rod is a ...

Embodiment 2

[0050] A method for precision plastic forming and precision heat treatment of a wave elastic element, comprising the following steps:

[0051] Step 1. According to the size requirements of the part, the expanded shape is processed as

[0052] Step 2. Clean the workpiece with gasoline to make the surface of the workpiece free of dirt and oil stains;

[0053] Step 3, if figure 1 , 2 The precision component molding force control device shown is placed on the workbench of the hydraulic press, and the cleaned parts are placed between the upper and lower dies of the stamping die (existing dies can be used, or customized according to requirements), and the end face of the stamping die A die hole is provided, the stamping die is placed on the support plate 1 of the precision component forming force control device, and the steel ball is placed on the die hole of the stamping die;

[0054] Step 4. Compress the precision component forming force control device under the pressure of t...

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Abstract

The invention discloses a method for precision plastic forming and precision heat treatment of a waveform elastic element. A precision element forming force control device is used for forming, the forming force of the part is precisely controlled, the forming height and the machining hardening effect of the part can be effectively controlled, the situation that the workpiece is flattened due to too large forming force, so that the workpiece becomes thinner can be prevented, and the punch forming effect is good. In order to control aging deformation of the workpiece and the height of the workpiece after being aged, the number of clamps ranges from 8 to 10, the tightening torque ranges from 5 N / m to 8 N / m, deformation of the workpiece in the heat treatment process is effectively controlled, and the heights of all points of the workpiece are effectively controlled. The method is used for conducting precision plastic forming and heat treatment on the part, the high requirements of a technical drawing for the height and the elasticity of the waveform elastic element are completely met, the hardness after heat treatment is larger than or equal to 360 HV, and the percent of pass of the heights of the three points of the waveform elastic element is 100% within the range shown in the specification; when the waveform elastic element is compressed to be 1.0 mm in height, the percent of pass of elasticity reaches more than 70% in the design requirement interval.

Description

technical field [0001] The invention belongs to the technical field of metal precision plastic forming and precision heat treatment, in particular to a method for precise plastic forming and precision heat treatment of a waveform elastic element of QBe2 beryllium bronze material. Background technique [0002] The wave elastic element is an elastic element with a wavy contour surface. The specific structural diagram is as follows: figure 1 , has the characteristics of small size and small space occupation, and has the functions of shock absorption and precise pressure adjustment, and is widely used in the sealing of hydraulic pumps for aerospace products. [0003] There is no fixed calculation formula for the elastic force value of wave elastic elements. Various factors affect the elastic force, such as forming force, compression, thickness, bearing area, and hardness. It is difficult to quantitatively calculate the degree of influence, and it is very difficult to control the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D35/00B21D13/02C22F1/08
Inventor 刘东军顾洪兵顾同义陈建中顾泽陈健
Owner NANJING CHENGUANG GRP
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