Equal-wire-diameter varied-stiffness automotive suspension spring flaw detection method

Abstract

The invention discloses an equal-wire-diameter varied-stiffness automotive suspension spring flaw detection method, and belongs to a mechanical part detection technology. The conventional method for detecting a product by directly observing the appearance of springs on a production line through detection personnel is high in labor intensity and makes the detection of flaws easily missed. The method comprises the following steps of: in the observation process, rolling the springs, moving a camera shooting probe along the axial directions of the springs while the springs are rolled so as to shoot the inner surfaces and the outer surfaces of the springs, transmitting a camera shooting signal to a computer, processing the camera shooting signal by using the computer, then displaying an image on a display of the computer, and observing through the detection personnel; determining the image on the display through the detection personnel, and performing a corresponding instruction so as to sort qualified springs and unqualified springs out through sorting blanking; and blanking respectively. By the method, a stereoscopic observation mode is changed into a horizontal observation mode, a horizontal and all-around clear observation mode is realized, the detection of the flaws cannot be missed, the detection personnel can reduce attention for observation, and labor intensity is effectively reduced.

Description

technical field [0001] The invention belongs to the technical field of mechanical parts detection, in particular to a flaw detection method of an automobile suspension spring with equal wire diameter and variable stiffness. Background technique [0002] After the automobile suspension spring is made, flaw detection is required to detect unqualified products. The existing detection method is that inspectors directly observe the appearance of the magnetized spring on the assembly line to detect unqualified products. However, due to The wire diameter of the spring is small, and because the spring is helical, it is often difficult for inspectors to observe the spring comprehensively, especially the inspection on the assembly line is labor-intensive, and it is easy to fatigue after long-term work, and the attention will be reduced, which is easy to cause leakage. check. Contents of the invention [0003] The technical problem to be solved and the technical task proposed by the...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved and the technical task proposed by the present invention are to overcome the defects that the existing inspection personnel directly observe the appearance of the magnetized spring on the assembly line to inspect the product, which is labor-intensive, easy to fatigue, and easy to cause missed inspection, and provides a A Flaw Detection Method for Automobile Suspension Spring with Equal Wire Diameter and Variable Stiffness