For CNC machine tools,the machining information such as geometric data and process data of the workpiece must be programmed into a CNC machining program according to the specified code and format,and the machining program should be input into the CNC system by appropriate methods.The numerical control system performs data processing on the input machining program,outputs various information and instructions,and controls various parts of the machine tool to operate in an orderly manner.The most basic information and instructions include:feedrate,feed direction and feed displacement for each axis,I/O signals for each state control.
The operation of the CNC machine tool is continuously controlled,output,feedback and other control processes to ensure the accuracy of the relative position between the tool and the workpiece.