针对目前细丝CO2 焊自动焊机焊接电流和电弧电压之间存在非线性调节关系 ,利用人工调节很难使两者达到最佳匹配的难点 ,研制了一种以 16位 80C196KC数字单片机为核心器件 ,通过自主开发的软件自动实现电弧电压与焊接电流最佳匹配的智能控制系统。系统设计了旨在补偿电弧电压寻优过程中焊接电流偏差的模糊控制器 ,同时采用优选法自动对电弧电压进行在设定电流值下的以实现最高短路过渡频率为目标的自寻优。 According to the current non-linear adjustment relationship between the welding current and the arc voltage of filament CO2 welding automatic welding machine, it is difficult to make the best match between the two by manual adjustment. A 16-bit 80C196KC digital single chip microcomputer is taken as the core device , Through the independent development of software to automatically achieve the arc voltage and welding current best match intelligent control system. A fuzzy controller designed to compensate the deviation of welding current during arc voltage optimization was designed. At the same time, the optimization method was applied to automatically optimize the arc voltage at the set current value to achieve the highest short-circuit transition frequency.