Right angle type expansion bolt and screw automatic assembly device and defect detection method thereof

Abstract

The invention discloses a right angle type expansion bolt and screw automatic assembly device and a defect detection method thereof. A cover disc, a screw embedded disc and a right angle type expansion bolt side fixed disc are installed on a fixed shaft from top to bottom and rotate along with a motor. By adjusting a set screw, the cover disc, the screw embedded disc, the right angle type expansion bolt side fixed disc and a horizontal plane form an angle so that the screw can slowly go down to enter a right angle type expansion bolt hole to achieve assembly during a rotation process. After feeding, the right angle type expansion bolt and screw automatic assembly device adopts a special mechanism and an opposite-type photoelectric sensor matched with an electromagnetic valve to enable the screw to enter the screw embedded disc and be located right above the right angle type expansion bolt hole. Further, the cover disc, the screw embedded disc and the horizontal plane form an angle, during anticlockwise rotation, when the screw enters the angle type expansion bolt hole, overlarge force cannot be generated instantly so that the right angle type expansion bolt cannot be damaged. Furthermore, the right angle type expansion bolt and screw automatic assembly device is based on gray scale change intensity to serve as threshold in template matching so that speed of three-time matching is increased.

Description

technical field [0001] The invention relates to a machine vision detection method and device, in particular to a right-angle expansion bolt and screw automatic assembly device and a defect detection method thereof. Background technique [0002] At present, right-angle expansion bolts are mainly screwed into the screw ports of right-angle expansion bolts manually by workers, which is not only slow and inefficient, but also consumes a lot of labor costs. At this time, automatic assembly technology has emerged. The mutual cooperation between some special mechanical structures achieves the structural assembly of two different parts, which not only greatly improves the speed and efficiency of assembly, but also saves a lot of labor costs. [0003] Moreover, the traditional method of detecting surface defects with human eyes is not only inefficient and difficult to achieve online detection, but also has different evaluation standards and subjective factors. Machine vision method i...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems existing in the current production industry of right-angle expansion bolts, the purpose of this invention is to propose an automatic assembly device for right-angle expansion bolts and its surface defect detection method, which effectively solves the problem of low production efficiency and defect detection speed of right-angle expansion bolts. Slow and poor stability

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