Automatic welding method based on three-dimensional model and machine vision and welding device based on three-dimensional model and machine vision

Abstract

The invention relates to an automatic welding method based on a three-dimensional model and machine vision and a welding device based on the three-dimensional model and the machine vision, relating to the technical field of welding. An industrial camera is used for acquiring an image of a workpiece to be welded; three-dimensional match is carried out and the workpiece to be welded is positioned according to the three-dimensional model of the workpiece; a welding line is positioned according to welding line information in the three-dimensional model; the welding line is accurately positioned by using a structure optical sensor; a movement track of a welding gun is adjusted according to the accurate position of the welding line so as to accurately track and weld the welding line. According to the automatic welding method, an automatic positioning and tracking function of the welding line can be realized, and the reliability of tracking the welding line and the tracking precision are improved. The problems that the welding precision is influenced, caused by the fact that the workpiece is warped by thermal deformation in a welding process and the like are solved; the adjustment and the adaptation can be carried out very well and the welding quality is improved.

Description

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AI Technical Summary

Benefits of technology

This technology helps robots perform precise tasks more efficiently while avoid colliding their own parts or other objects together due to its ability to accurately follow paths on complex surfaces like steel pipes. By capturing images from the surface being worked upon, this technology allows robotic arms to quickly identify where they are working next based on these captured data. Additionally, there's no requirement for manual setup of start points at which the wires will be joined again afterward because the robot moves around freely within the area covered by the wired connections between them. Overall, this new technique improves efficiency and precision in manufacturing processes.

Problems solved by technology

The technical problem addressed in this patented text relates to improving the functionality of robotized welders without requiring manual initialization during startup or repositioning their positions when dealing with large variations in temperature due to heat transfer from the wires being joined together.

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