轿车车身电阻点焊质量实时监测系统  

Welding quality real-time monitoring system for auto-body assembly

作　　者：许君[1] 李永兵[1] 陈关龙[1] 

机构地区：[1]上海交通大学机械与动力工程学院,上海200030

出　　处：《焊接学报》2006年第4期41-44,共4页Transactions of The China Welding Institution

基　　金：上海市科委科技攻关项目(031111031)

摘　　要：介绍了一种以电极位移为监测量的新型轿车车身点焊质量实时监测系统。系统设计了专用夹具,解决了位移传感器安装对原系统的干涉问题,能够很好地应用于悬挂焊机。系统通过对点焊过程中的电极位移进行监测,能够对生产中焊点遇到的质量问题进行故障诊断,如工件表面质量状况差、分流、磨损、飞溅等情况。现场应用证明,系统具有良好的稳定性和可靠性,适用于实际焊接生产。This paper introduces a new auto-body spot weld quality monitoring system using electrode displacement.This system solves the interference problem of sensor mounting by designing special fixture,and can be successfully applied on the portable welding machine.It has capable of making diagnosis of process variations such as surface asperities,shunting,worn electrode and splash with real-time electrode displacement.Through confirmation of application in the workshop,monitoring system has good stability and reliability,and is suited for monitoring welding quality in production.

关 键 词：电阻点焊 电极位移 故障诊断 质量监测 悬挂焊机 

分 类 号：TG438.2[金属学及工艺—焊接]