Automatic laser line width adjustment method

Abstract

The invention discloses an automatic laser line width adjustment method. The method comprises the following steps that step 1, a workpiece is placed, an image is acquired by a laser tracking sensor, and a laser line presentation area is determined; step 2, a laser line is presented, and the parameter values of an analog gain, an electronic shutter and the laser power of the laser line are obtained; step 3, the average width of the presented laser line is calculated and is compared with the set laser line width, and the parameter values of the analog gain, the electronic shutter and the laser power are adjusted according to the result, so that the average width of the laser line is close to the width of the set laser line, and the optimal parameter value is obtained and saved; and step 4, whether the optimum parameter value satisfies the presentation requirement of different regions of the whole workpiece on the laser line or not is tested, and the final optimum parameter value is obtained. By the adoption of the automatic laser line width adjustment method, the parameters are automatically adjusted, the optimal laser line width is realized, and the complexity and uncertainty of artificial adjustment are avoided.

Description

technical field [0001] The invention relates to the technical field of welding automation, in particular to an automatic adjustment method for laser line width. Background technique [0002] The traditional laser tracking sensor needs to adjust a series of parameters of the electronic shutter, analog gain and laser power to adjust the laser line width in the image. The existing laser line width adjustment adopts manual adjustment to adjust the electronic shutter, analog gain and laser power at the same time. However, there is no matching standard among these parameters, and we can only try one by one. The adjustment speed is very slow and complicated. There is no standard to stop the adjustment, and it is completely subjective judgment. Contents of the invention [0003] The object of the present invention is to address the above-mentioned defects in the prior art, to provide an automatic adjustment method of laser line width, which can automatically adjust parameters to a...

AI Technical Summary

Problems solved by technology

[0002] The traditional laser tracking sensor needs to adjust a series of parameters of the electronic shutter, analog gain and laser power to adjust the laser line width in the image. The existing laser line width adjustment adopts manual adjustment to adjust the electronic shutter, analog gain and laser power at the same time. However, there is no matching standard among these parameters, so we can only try one by one. The adjustment speed is very slow, and the adjustment is complicated. There is no standard to stop the adjustment, and it is completely subjective judgment.

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