逆变弧焊机电弧推力自适应控制系统  

Arc force self-adapt control system of invert arc welding machine

作　　者：朱志明[1] 罗小锋[1] 吴文楷[1] 

机构地区：[1]清华大学机械工程系,北京100084

出　　处：《电焊机》2001年第2期12-15,共4页Electric Welding Machine

摘　　要：在焊接电流确定的条件下 ,引弧瞬间的焊机输出电压反映了焊接电缆长度、截面积以及地线连接情况等重要信息。本研究装置是基于MC6 8HC11单片机控制的逆变焊机电弧推力自适应控制系统 ,首先通过对引弧瞬间焊机输出电压的实时检测 ,实现了电弧推力拐点电压随焊接电流及焊接电缆长度、截面积等改变而自动调节 ;然后通过对焊接电弧电压的实时检测与模糊处理控制焊机的输出电流 。When welding current is fixed,some important information such as length and section area of welding cable,connection of ground wire can be shown by output voltage of instantaneous arc striking.The arc force self adapt control system of invert arc welding machine is based on single chip micro processor MC68HC11.First,detecting the output voltage of arc striking in the real time,the arc force voltage can be auto adjusted along with the changing of the length and section area of welding cable.Then inspecting welding voltage in the real time and controlling welding current by fuzzy process, therefore the arc force control of manual metal arc welding is provided with powerful self adaptability.

关 键 词：手工电弧焊 电弧推力 自适应控制系统 逆变弧焊机 

分 类 号：TG434.4[金属学及工艺—焊接] TG409