基于电弧偏差实时调整的焊缝控制方法及系统

By acquiring welding current and voltage signals in real time, and combining model calculations and verifications, the welding torch posture is dynamically adjusted, solving the problem of difficult-to-control arc deviation in traditional welding, and improving the stability and consistency of weld formation.

CN122142461BActive Publication Date: 2026-07-17GUANGXI TECHCAL COLLEGE OF MACHINERY & ELECTRICITY

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
GUANGXI TECHCAL COLLEGE OF MACHINERY & ELECTRICITY
Filing Date
2026-05-07
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In traditional electric arc welding, the electric arc is easily affected by factors such as base material assembly errors, welding heat input, and power grid voltage fluctuations, leading to defects such as weld misalignment and undercut. It is difficult to achieve real-time and precise control, which affects welding quality and mechanical properties.

Method used

By synchronously acquiring real-time welding current and arc voltage signals during the welding process, the estimated values ​​of the lateral and height deviations of the welding torch are calculated and consistency verification is performed to generate confidence level evaluation coefficients. Combined with a pre-trained thermal deformation coupling prediction model and a process stability evaluation model, the adjustment amount is dynamically fused to generate drive commands for the welding actuator.

Benefits of technology

It achieves real-time closed-loop control of welding torch posture, improves the stability and consistency of weld formation quality, and promotes the upgrading of the welding process towards intelligence and precision.

✦ Generated by Eureka AI based on patent content.

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Abstract

本申请提供了基于电弧偏差实时调整的焊缝控制方法及系统,涉及焊接技术领域,包括:采集焊接回路的实时焊接电流信号与实时电弧电压信号;基于实时焊接电流信号,计算焊枪的横向偏差估计值与横向置信水平评估系数;基于实时电弧电压信号,计算焊枪的高度偏差估计值与高度置信水平评估系数;通过热变形耦合预测模型计算横向预期补偿量,通过过程稳定性评估模型计算高度预期补偿量;对横向偏差估计值、横向预期补偿量进行融合,生成横向综合目标调整量,对高度偏差估计值、高度预期补偿量进行融合,生成高度综合目标调整量,并转换为焊接执行机构的驱动指令。解决了现有技术中难以精准调整电弧偏差导致焊缝质量差的技术问题。
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