基于MIG/MAG的环缝焊机焊枪运动控制机构设计及运动特性研究  

Design of Controlling Mechanism for Welding Torch Swing in Automatic Welding Machine of Circumferential Seam and Research of Motion Property Based on MIG/MAG

作　　者：田国华[1] 李华[1] 王琴慧[2] 

机构地区：[1]浙江广播电视大学萧山学院,浙江杭州311200 [2]杭州自动化技术研究院有限公司,浙江杭州310012

出　　处：《热加工工艺》2011年第23期171-173,共3页Hot Working Technology

基　　金：浙江广播电视大学重点课题(XKT-11Z09)

摘　　要：针对网架钢结构中管端环缝的焊接现状,以及焊接规范中基于MIG/MAG焊对焊接速度控制精度的要求,设计了环缝自动焊接专机中焊枪运动的控制机构,给出了无急回特性的曲柄摇杆机构存在的条件,建立了摇杆摆动运动的数学模型,并对一组不同参数的曲柄摇杆机构进行了运动特性仿真,得出了焊枪摆动机构的优化设计方案。理论分析和实验结果显示:此设计方案完全可以满足基于MIG/MAG焊对焊枪摆动控制的要求,并使曲柄摇杆机构具有最佳的运动特性。Aimed at welding problems that exist in pipe-end welding of steel web flame structure, with requirement to the performance of welding torch swinging in the welding regulations basedon MIG/MAG, a welding porch＇s motion control system in circumferential welding was designed, and the existence conditions of no quick-return crack rocker structure were set up, meanwhile the mathematic models of rocker＇s swing motion was set up. The motion property of crack rocker structure with a series of different parameters was investigated. The optimization schene for welding torch swinging structure established. The simulation results show that the plan can completely meet the demands of MIG/MAG to welding porch-swing control and enable the crack rocker structure to have the best motion performance.

关 键 词：MIG/MAG 焊枪 摆动机构 设计 运动特性 

分 类 号：TH164[机械工程—机械制造及自动化]