Welding equipment and welding parameter adjusting method and device thereof

Abstract

The invention discloses welding equipment and a welding parameter adjusting method and device thereof. The method comprises the steps that firstly, N sets of historical welding data meeting a preset welding standard are determined as N sets of effective welding data; then an to-be-estimated coefficient in a multivariate regression analysis model is determined according to welding parameters inf the effective welding data and corresponding weld width; the maximum value in the to-be-estimated coefficient is screened out, and a target value of Xp corresponding to the to-be-estimated coefficient beta p is determined according to welding parameters of M sets of effective welding data; then a target value of Xj is determined according to an expected weld width mid-value in the preset welding standard, the target value of Xp and the multivariate regression analysis model; and the target values of X1 to Xn are adopted as welding parameter after adjustment, so that the welding equipment adjuststhe welding parameters automatically in time, the human cost is reduced, and the welding quality is improved.

Description

technical field [0001] The embodiments of the present invention relate to the field of welding technology, and in particular, to a welding device and a welding parameter adjustment method and device thereof. Background technique [0002] At present, in the welding process, the shape and size of the molten pool on the front of the weld are directly related to the shape of the weld. Experienced welders can perceive the welding status by observing the position of the joint, the width of the molten pool, and the shape of the arc. , and adjust the welding voltage, welding current or welding speed according to the actual situation, so as to make the weld shape well. For example, when the weld width becomes wider, the welder can reduce the welding speed, increase the swing width, and try welding with the adjusted process parameters. However, due to the disadvantages of poor working environment, high labor intensity, harmful to health, high welder training costs, and long cycle of ...

AI Technical Summary

Problems solved by technology

However, due to the disadvantages of poor working environment, high labor intensity, harmful to health, high welder training costs, and long cycle of welding production, qualified welders, especially senior welders who are competent for the production of important welding product components in special industries, have become increasingly rare. At present, welding robots are used to solve the problem, but ordinary welding robots only weld according to fixed welding process parameters, and cannot adjust the welding parameters in time when the weld width changes like welders

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