Method, device and system for controlling numerically controlled welding speed

Abstract

The invention discloses a method, device and system for controlling a numerically controlled welding speed. The method comprises the steps of: acquiring a normal audio signal generated at a normal welding speed and abnormal audio signals generated by welding at an excessive speed and at a low speed in advance, and carrying out filtering and spectrum analysis to obtain a spectrum and distribution characteristic information of a normal audio signal; acquiring a current audio signal generated at the current welding speed, analyzing the spectrum and distribution characteristic information of the current audio signal, comparing with the spectrum and distribution characteristic information of the normal audio signal, and judging whether the current welding speed is rational; if not, carrying out de-noising filtering treatment for the current audio signal, and adjusting the current welding speed by combining with the spectrum distribution characteristic of the normal audio signal. By utilizing the characteristics of the spectrum analysis, the de-noising treatment and the frequency distribution curve, and combining with the numerical control treatment technology, the method, device and system for controlling the numerically controlled welding speed can finally obtain the welding speed needing adjustment through analyzing a relationship law between the obtained welding speed and the spectrum and distribution characteristic information of the audio signal and analyzing the spectrum distribution curve.

Description

technical field [0001] The invention relates to the field of welding technology, in particular to a numerical control welding speed control method, device and system. Background technique [0002] In the current welding process, the control of the speed is a big problem, especially the welding of irregular thin plates requires reasonable control of the welding speed. If the welding speed is too fast, it will cause welding failure or missing welding, and at the same time, it will cause insufficient connection strength of the welded components. Welding too slowly will also cause weld leakage. [0003] In the prior art, manual methods are usually used to adjust the welding speed. During the welding process, the operator needs to visually observe the current welding speed at all times and make corresponding adjustments. Obviously, manual observation and execution of welding speed adjustment operations require the operator to rely on According to my own work experience, to obse...

AI Technical Summary

Problems solved by technology

If the welding speed is too fast, it will cause welding failure or missing welding, and at the same time, it will cause insufficient connection strength of the welded components

Welding too slowly will also cause weld leakage

[0003] In the prior art, manual methods are usually used to adjust the welding speed. During the welding process, the operator needs to visually observe the current welding speed at all times and make corresponding adjustments. Obviously, manual observation and execution of welding speed adjustment operations require the operator to rely on Observing and adjusting the welding speed based on my own work experience, workers need to pay a lot of labor intensity, and the welding quality is not high, and the welding efficiency is relatively low

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