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Welding arc striking burst detection method and system and welding method

A welding arc ignition and detection method technology, which is applied in welding equipment, arc welding equipment, continuity testing, etc., can solve the problem that it is difficult for welders to distinguish bursts, and achieve accurate burst judgments, quantifiable burst judgments, and strong adaptive effect

Pending Publication Date: 2022-03-15
CHENGDU CRP ROBOT TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In some cases where the bursting is not very violent, it is difficult for the welder to distinguish whether it is bursting or not.

Method used

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  • Welding arc striking burst detection method and system and welding method
  • Welding arc striking burst detection method and system and welding method
  • Welding arc striking burst detection method and system and welding method

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Experimental program
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Effect test

Embodiment 2

[0057] This embodiment provides a detection system for welding arc ignition explosion, including an acquisition card and an industrial computer. The acquisition card is connected to the welding workpiece and transmits the current data to the industrial computer. The industrial computer implements the method described in Embodiment 1. The detection method of welding arc burst.

Embodiment 3

[0059] The present invention also provides a welding method, which is to perform burst detection on the arc striking process before normal welding; the burst detection method adopts the detection method of welding arc burst described in Embodiment 1;

[0060] If the result shows that there is no burst, proceed to the normal welding procedure directly;

[0061] If the result shows that there is a burst during the arc ignition process, adjust the welding process parameters and perform the burst detection during the arc ignition process again; repeat the adjustment of the welding process parameters and the burst detection during the arc ignition process until the result shows that there is no burst and then enter the normal state Welding procedure.

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Abstract

The invention discloses a detection method and system for welding arc striking explosion and a welding method.The detection method comprises the steps that in the welding process or after welding is completed, collected welding current data are processed; in the process of continuously reading the current data, if the current amplitude is higher than a first current amplitude threshold value and the current slope is higher than a first current slope threshold value, the current is judged to enter a primary pulse process, and the point is a pulse starting point; if the current amplitude is lower than a second current amplitude threshold and the slope is lower than a second current slope threshold, recording the point as a pulse end point; a pulse period is formed from the pulse starting point to the pulse ending point; determining a current effective pulse; outputting the explosion frequency; and parameter adjustment is conducted on the welding machine according to the blasting frequency. The method has very strong adaptability to different welding workpieces in different welding environments, does not need too much manpower participation, is accurate and quantifiable in explosion judgment, and does not have artificial judgment errors.

Description

technical field [0001] The invention relates to the technical field of robotic motorized welding, in particular to a detection method, system and welding method for welding arc ignition burst. Background technique [0002] With the current increase in the cost of manpower and material resources, the application range of robot welding is becoming wider and wider. In robot automatic welding, the continuity of welding is very high, especially in the assembly line manufacturing process. If an error occurs in one welding link, the entire assembly line will be destroyed. It will stop working and cause unnecessary losses. Before welding, there is an arc striking process, which is very short, but arc striking is a relatively drastic process, and problems are most likely to cause fluctuations in welding quality or affect the continuous process of welding. The most likely problem in welding arc ignition is welding wire bursting. This problem may be caused by many factors, such as wel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/54B23K9/00
CPCG01R31/54B23K9/00
Inventor 谷菲李祥其他发明人请求不公开姓名
Owner CHENGDU CRP ROBOT TECH CO LTD
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