电弧传感焊缝跟踪精度关键影响因素分析  

Analysis of Key Factors Affecting Arc Sensing Accuracy in Seam Tracking

作　　者：孟令泽 刘文吉[1] 王玉梅[2] 贾宗彪 岳建锋[1] 李亮玉[1] MENG Lingze;LIU Wenji;WANG Yumei;JIA Zongbiao;YUE Jianfeng;LI Liangyu(School of Mechanical Engineering,Tiangong University,Tianjin 300387,China;Tianjin Sino-German University of Applied Sciences,Tianjin 300350,China)

机构地区：[1]天津工业大学机械工程学院,天津300387 [2]天津中德应用技术大学,天津300350

出　　处：《热加工工艺》2023年第21期60-63,67,共5页Hot Working Technology

基　　金：国家自然科学基金项目(51975410);天津市技术创新引导专项基金项目(20YDTPJC01060);天津市教委科研计划项目(2019KJ011)。

摘　　要：电弧传感器根据焊接电弧信号的变化检测焊缝位置,具有无需额外设备、成本低的优点,但较低的传感精度和稳定性限制了其应用。从工程应用的角度研究焊接系统中影响电弧传感精度的因素,发现执行器发出位置信号的准确性、断弧现象、坡口角度和数据提取方式都会对传感的精度和稳定性产生重要影响,并针对性地给出了解决方案。研究结果对工程中提高电弧传感精度和稳定具有一定的指导意义。The arc sensor detects the weld seam position based on the change of welding arc signal,and it doesn't need no additional devices and has advantage of low cost.But the low sensing accuracy and stability has limited its application.From the aspect of engineering application,the factors in welding system influencing arc sensing accuracy were studied.It is found out that the position signal from the actuator,the arc interruption,the groove angle and the data extraction method play an important influence on the sensing accuracy and stability.Solutions were given out for each factor.The research has certain guidance for improving the arc sensing accuracy and stability in engineering application.

关 键 词：焊缝跟踪 电弧传感器 机器人焊接 传感精度 

分 类 号：TG409[金属学及工艺—焊接]