基于高速摆动电弧传感器的GMAW焊缝跟踪技术研究  

Seam tracking technology for gas metal arc welding based on high speed swinging arc sensor

作　　者：周灿丰[1] 吴金锋[1] 罗雨[1] 焦向东[1] 

机构地区：[1]北京石油化工学院能源工程先进连接技术 北京市高等学校工程研究中心,102617

出　　处：《焊接》2013年第9期14-17,70,共4页Welding & Joining

基　　金：北京市自然科学基金项目(KZ201210017017)

摘　　要：针对现有的摆动电弧传感器普遍存在的频率较低问题,研制了特种电机直接驱动的高速摆动电弧传感器,焊枪结构简单,摆动频率高。建立了以工控机为核心的、基于摆动电弧传感器的GMAW焊接焊缝跟踪系统.编制了人机接口界面,通过对焊接电流信号采集和处理,进行焊缝偏差提取,采用PID控制有效地实现了焊缝跟踪。To solve the problem of low frequency of currendy used swinging arc sensor,a high speed swinging arc sensor driven by a special motor was developed,which has simple structure and high swing frequency.A gas metal arc welding seam tracking system was established based on high speed swinging arc sensor,which has a manmachine interface designed on industrial personal computer.On the basis of welding current signal analysis and weld seam offset,PID control of weld seam tracking is realized successfully.

关 键 词：GMAW 高速摆动电弧传感器 PID控制 焊缝跟踪 

分 类 号：TG409[金属学及工艺—焊接]