Detecting method for welding seam track of welding robot

Abstract

The invention discloses a detecting method for a welding seam track of a welding robot. The detecting method comprises the following steps of fixing a gypsum workpiece on a tool; fixing the tool on a positioner, and starting the positioner; mounting a scratching steel needle on a gun head of a welding gun of the welding robot; starting the welding robot, and carrying out simulated welding on the gypsum workpiece to form a welding track; and scanning the welding track by using a three-dimensional laser scanner to form a three-dimensional model of the welding track, carrying out digital analog comparison on the three-dimensional model obtained through scanning and a theoretical welding model, analyzing a deviation value, and judging whether the welding seam track is qualified or not. The detecting method is simple; in addition, a welding workpiece is subjected to model simulation by virtue of gypsum, so that the detecting cost is reduced, the welding rack of the welding robot is intuitively shown, measurement and analysis are conveniently realized, and a more uniform, intuitive and accurate evaluation standard is provided for research, development and production parties, the sale parties and users.

Description

technical field [0001] The invention relates to a method for detecting a weld track, in particular to a method for detecting a weld track of a welding robot, and belongs to the technical field of weld track detection. Background technique [0002] With the rapid development of science and technology, welding robots are widely used in the field of industrial manufacturing. Welding is an indispensable processing technology in modern machinery manufacturing. Therefore, the performance of welding robots seriously affects the quality of mechanical products. If the performance of welding robots is poor, then During the welding process, the deviation rate of the weld seam is high, resulting in welding defects. In addition, the performance testing of welding robots has not formed an industry standard, which makes it impossible for demanders to directly and accurately evaluate welding robots. At present, welding robots use seam tracking detection to correct welding deviation, but th...

AI Technical Summary

Problems solved by technology

[0002] With the rapid development of science and technology, welding robots are widely used in the field of industrial manufacturing. Welding is an indispensable processing technology in modern machinery manufacturing. Therefore, the performance of welding robots seriously affects the quality of mechanical products. If the performance of welding robots is poor, then During the welding process, the deviation rate of the weld seam is high, resulting in welding defects

In addition, the performance testing of welding robots has not formed an industry standard, which makes it impossible for demanders to directly and accurately evaluate welding robots

At present, welding robots use seam tracking detection to correct welding deviation, but the accuracy is not high. In addition, multi-degree-of-freedom detection involves many interference factors. ) has a high detection deviation rate, and cannot accurately judge whether the performance of the welding robot is qualified

Images