An Open Architecture Computerized Numerical Control System for Economical Machine Tools

The status of our country's economical computerized numerical control(CNC) system was discussed, the development trend of PC based open architecture economical CNC system was put forward. The functions, software and hardware of the open architecture economical CNC system were illustrated by an example of the CNC system. The design principle of this CNC system's kernel component——motion control card was also introduced. The card is designed with general chips. The open architecture economical CNC system was successfully applied in reforming the old closed CNC system for flame cutting machine.