Quality inspection method, device and storage medium based on laser welding

Abstract

The invention discloses a quality inspection method based on laser welding, comprising the following steps: collecting welding training information within a standard time period; dividing abnormal information in distribution into: abnormal training information in distribution and abnormal detection information in distribution; Carry out the marking process of quality classification with the abnormal training information in the distribution to obtain the marked welding information; construct the initial neural network, and train the initial neural network through the marked welding information to obtain a standard neural network; through the abnormal detection information in the distribution and The out-of-distribution abnormal information detects the standard neural network, extracts the standard neural network whose accuracy rate is greater than the accurate threshold, and obtains the target neural network; obtains the welding target information within the target time period, and inputs it into the target neural network for classification processing, and obtains the welding target neural network. The quality type of the target information. The invention can detect and classify the welding quality of products, and improves the efficiency and accuracy of quality detection.

Description

technical field [0001] The invention relates to the field of welding technology, in particular to a quality detection method, device and storage medium based on laser welding. Background technique [0002] Laser welding is an advanced welding process. With its advantages of high energy density, high welding speed, small heat-affected zone of weld seam, small deformation, and high mechanical properties of joints, it occupies an irreplaceable position in various fields of the industry. [0003] However, in the process of laser welding, welding abnormalities will also occur, which generally include: abnormalities within the distribution and abnormalities outside the distribution; among them, abnormalities within the distribution are common abnormalities, which are relatively easy to distinguish, while abnormalities outside the distribution are due to The probability of occurrence is relatively small, and it is difficult to distinguish, which easily reduces the accuracy of produ...

AI Technical Summary

Problems solved by technology

[0003] However, in the process of laser welding, welding abnormalities will also occur, which generally include: abnormalities within the distribution and abnormalities outside the distribution; among them, abnormalities within the distribution are common abnormalities, which are relatively easy to distinguish, while abnormalities outside the distribution are due to The probability of occurrence is relatively small, and it is difficult to distinguish, which easily reduces the accuracy of welding quality inspection of products

Images