Program structures and synchronization schemes in numerical coordinate controllers of three-wire welding

摘要

In the three-wire welding system,a welding process consists of the operations of four devices,namely three welding machines and one bogie.The operations need to be synchronized by a numerical coordinate controller(NCC).In this paper, we will discuss a task-job-procedure cubic program structure.Under this structure,the devices are synchronized and isolated at the same time.This cubic program structure can also be used as a reference for other multi-device or multi-unit manufacturing processes.