从硬件和软件两部分详细介绍一种应用于钢筋网生产线的多点电阻焊接控制的焊接控制器。系统硬件由单片机、电源相位检测模块、移相控制模块、数码显示模块、通讯模块、电源模块等组成,结合程序完成可控硅的移相触发,在钢筋网焊接生产线上得到成功应用。 A hardware controller and a software controller are introduced in detail in this paper. It is a multi-point resistance welding control welding controller used in the production line of steel mesh. The system hardware consists of single-chip microcomputer, power phase detection module, phase shift control module, digital display module, communication module, power supply module and so on. The phase-shift triggering of thyristor is completed with the program and successfully applied in the steel bar welding production line.