Numerical control machining (numerical control machining) refers to a process method for machining parts on CNC machine tools. The process rules of CNC machine tool processing and traditional machine tool processing are generally consistent, but there have also been significant changes. A machining method that uses digital information to control the displacement of parts and tools. It is an effective way to solve the problems of changeable parts variety, small batch, complex shape and high precision and realize efficient and automatic processing.
A CNC machine tool is a machine tool controlled by a computer. The computer used to control the machine tool, whether it is a dedicated computer or a general-purpose computer, is collectively referred to as a numerical control system. The movement and auxiliary actions of CNC machine tools are controlled by the commands issued by the CNC system. The instructions of the CNC system are compiled by the programmer according to the material of the workpiece, the processing requirements, the characteristics of the machine tool and the instruction format (NC language or symbols) specified by the system. The numerical control system sends running or termination information to the servo device and other functional components according to the program instructions to control various movements of the machine tool. When the machining program of the part ends, the machine will automatically stop. For any kind of CNC machine tool, if there is no program command input in its CNC system, the CNC machine tool cannot work. The controlled actions of the machine tool roughly include the start and stop of the machine tool; the start and stop of the spindle, the change of the rotation direction and speed; the direction, speed and mode of the feed movement; the selection of the tool, the compensation of the length and radius; the replacement of the tool, the cooling Opening and closing of liquid.
