Metal structural part welding deformation compensation method and device

By leveraging the combined action of electronic controllers and servo motors, welding deformation is dynamically compensated in real time, solving the problems of dimensional deviations and high defect rates caused by welding thermal deformation, and achieving high-precision, low-cost welding deformation control.

CN122400732APending Publication Date: 2026-07-17TIANJIN AEROSPACE XINRUI TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TIANJIN AEROSPACE XINRUI TECH CO LTD
Filing Date
2026-04-16
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing welding deformation control technologies suffer from poor versatility, high cost, insufficient precision, and low efficiency. They cannot effectively solve the problems of dimensional deviations and high defect rates in structural components caused by welding thermal deformation, and are particularly difficult to meet diverse needs in small-batch production and customized products.

Method used

By employing an electronic controller combined with a pressure sensor and a servo motor, the pressure signal generated by welding thermal deformation is collected in real time. A preset algorithm is used to calculate and drive the servo motor to apply a directional pushing force to the metal structural component, thereby achieving real-time dynamic compensation for welding deformation.

Benefits of technology

It enables precise compensation for welding deformation of metal structural parts of different sizes and materials, reduces the defect rate, improves processing efficiency and assembly accuracy, reduces the need for manual adjustment, and lowers production costs.

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Abstract

本发明公开一种金属结构件焊接变形补偿方法及装置,涉及金属结构件焊接变形修正领域。针对现有技术中人工预留余量精度不足、专用模具成本高且不通用的缺陷,本发明采用通用卡具配合焊接平台固定结构件,通过压力传感器实时采集焊接热变形产生的压力信号,电子控制器结合预先输入的焊接电流、结构件材质、横截面积等参数,依据预设公式计算顶出距离和伺服电机转动圈数,再通过涡轮蜗杆驱动机构与丝杠式顶杆,对结构件施加定向顶推补偿力(补偿范围5‑20毫米)。补偿系数适配不同材质与横截面积,实现动态补偿。本发明无需专用模具,通用性强,能显著缩小焊接变形量,提升焊接质量与效率,降低劳动强度。
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