Ring-shaped workpiece inner wall defect detecting equipment and method based on machine vision

Abstract

The invention relates to ring-shaped workpiece inner wall defect detecting equipment and method based on machine vision. The ring-shaped workpiece inner wall defect detecting equipment comprises a rack and a plurality of groups of detecting stations, wherein the multiple groups of detecting stations are mounted on the rack in a spaced mode; each detecting station comprises a pair of lenses, a light source and a camera; a conveying chain is mounted on the rack; multiple pairs of lenses are mounted at the two sides of the conveying chain in a spaced mode; each pair of lenses is symmetrically arranged in an inclined mode; the light source is mounted above the lenses; and the middle part of the light source is equipped with the camera. The ring-shaped workpiece inner wall defect detecting equipment is simple in structure, and is in delicate in idea, and the whole detecting process is accomplished by equipment and does not need manual operation; besides, the camera in the equipment uses a common prime lens, so that the cost of the detecting equipment is reduced. The equipment is liable to realize, is high in practicability, and realizes all-around acquisition of the same station, so that a quick all-around detection purpose is realized, and therefore, a popularization and application value is wide.

Description

technical field [0001] The invention belongs to the technical field of detection, in particular to a machine vision-based detection device and method for defects on the inner wall of an annular workpiece. Background technique [0002] In the prior art, for some high-precision parts, such as bearing sleeves, the inner and outer walls, end faces, and inner and outer chamfers are strictly inspected to determine whether there are defects such as cracks and gaps. The traditional detection method is generally through artificial detection, which is not only inefficient, but also has poor detection accuracy. [0003] At present, wide-angle lens detection has appeared on the market. The problems of this detection method are: 1. It often requires multiple cameras and multiple stations to cooperate with the detection, and the detection efficiency is low; 2. It requires the use of expensive endoscopic lenses, which makes The detection cost is greatly increased. Contents of the invent...

AI Technical Summary

Problems solved by technology

Traditional detection methods generally use manual detection, which is not only inefficient, but also has poor detection accuracy

[0003] At present, wide-angle lens detection has appeared on the market. The problems of this detection method are: 1. It often requires multiple cameras and multiple stations to cooperate with the detection, and the detection efficiency is low; 2. It requires the use of expensive endoscopic lenses, which makes The detection cost is greatly increased

Images