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Production technique for suspension springs

A production process and suspension spring technology, applied in the production technology field of suspension springs, can solve the problems of poor fatigue strength of suspension springs, consumption of suspension springs, quenching deformation of steel wires, etc., to improve stress relaxation resistance, shorten winding time, The effect of reducing quenching deformation

Inactive Publication Date: 2017-05-31
WUXI FENGLI SPRING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the existing production process of the suspension spring, the steel wire of the raw material is prone to quenching and deformation, which causes the suspension spring to consume more time in the whole winding process, and the fatigue strength of the finished suspension spring is not good, and the suspension spring is prone to relaxation. Affect the service life of the suspension spring

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A production process of a suspension spring, comprising the following production steps:

[0030] The first step is winding. The spring is wound around the main body of the suspension spring according to the prefabricated height, outer diameter and number of turns. At the same time, the shackles at both ends and the main body of the suspension spring are drawn into shape at one time to obtain the initial product suspension spring.

[0031] The second step is tempering to relieve stress. Put the primary product suspension spring into the tempering furnace for tempering and stress relief, which specifically includes two tempering and stress relief steps:

[0032] For the first tempering to relieve stress, put the primary product suspension spring into the tempering furnace, the temperature in the tempering furnace is 400°C, and the tempering time is 60 minutes;

[0033] For the second tempering to relieve stress, put the first finished product suspension spring into the te...

Embodiment 2

[0048] A production process of a suspension spring, comprising the following production steps:

[0049] The first step is winding. The spring is wound around the main body of the suspension spring according to the prefabricated height, outer diameter and number of turns. At the same time, the shackles at both ends and the main body of the suspension spring are drawn into shape at one time to obtain the initial product suspension spring.

[0050] The second step is tempering to relieve stress. Put the primary product suspension spring into the tempering furnace for tempering and stress relief, which specifically includes two tempering and stress relief steps:

[0051] For the first tempering to relieve stress, put the initial finished suspension spring into the tempering furnace, the temperature in the tempering furnace is 500°C, and the tempering time is 45 minutes;

[0052] For the second tempering to relieve stress, put the first finished product suspension spring into the t...

Embodiment 3

[0067] A production process of a suspension spring, comprising the following production steps:

[0068] The first step is winding. The spring is wound around the main body of the suspension spring according to the prefabricated height, outer diameter and number of turns. At the same time, the shackles at both ends and the main body of the suspension spring are drawn into shape at one time to obtain the initial product suspension spring.

[0069] The second step is tempering to relieve stress. Put the primary product suspension spring into the tempering furnace for tempering and stress relief, which specifically includes two tempering and stress relief steps:

[0070] For the first tempering to relieve stress, put the initial finished suspension spring into the tempering furnace, the temperature in the tempering furnace is 650°C, and the tempering time is 30 minutes;

[0071] For the second tempering to relieve stress, put the first finished product suspension spring into the t...

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Abstract

The invention discloses a production technique for suspension springs. The production technique for the suspension springs comprises the following steps of winding, specifically, winding of suspension spring main bodies is conducted according to the preset heights, outer diameters and turn numbers of the springs, one-time drawing formation of hook rings at the two ends and the suspension spring main bodies is conducted at the same time, and thus primary finished suspension springs are obtained; tempering stress relief, specifically, the primary finished suspension springs are placed in a tempering furnace for tempering stress relief; flaw detection, specifically, flaw detection is conducted on the primary finished suspension springs subject to tempering stress relief; surface treatment, specifically, primary sand blasting is conducted on the primary finished suspension springs subjected to flaw detection, and secondary sand blasting is conducted on the primary finished suspension springs subjected to primary sand blasting; sorting, specifically, machined finished suspension springs are conveyed one by one through spring conveying equipment, and stacking and sorting of the finished suspension springs are achieved; and packaging, specifically, the sorted suspension springs are placed in storage bags so as to be packaged. In this way, by adoption of the production technique for the suspension springs, the winding time of the suspension springs can be shortened, the stress relaxation resistance of the suspension springs is effectively improved, and the fatigue life of the springs is prolonged.

Description

technical field [0001] The invention relates to the technical field of spring production, in particular to a production process of a suspension spring. Background technique [0002] In the existing production process of the suspension spring, the steel wire of the raw material is prone to quenching deformation, which causes the suspension spring to consume more time in the whole winding process, and the fatigue strength of the finished suspension spring is not good, and the suspension spring is prone to relaxation. Affect the service life of the suspension spring. Contents of the invention [0003] The technical problem mainly solved by the present invention is to provide a production process of the suspension spring, which can shorten the winding time of the suspension spring, effectively improve the stress relaxation resistance of the suspension spring, and increase the fatigue life of the spring. [0004] In order to solve the above-mentioned technical problems, a tech...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21F35/02G01N29/04
CPCB21F35/02G01N29/048G01N2291/023
Inventor 尤伟明
Owner WUXI FENGLI SPRING
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