CNC machine tool is the abbreviation of computer numerical control machine tools. It is an automatic machine tool equipped with program control system. The control system can logically process the program with control code or other symbol instructions, decode it, express it with coded numbers, and input it into the numerical control device through the information carrier. After operation and processing, the CNC device sends out various control signals to control the action of the machine tool, and automatically processes the parts according to the shape and size required by the drawings.

CNC machine tool solves the problem of complex, precise, small batch and multi variety of parts processing. It is a flexible and efficient automatic machine tool, which represents the development direction of modern machine tool control technology and a typical mechatronic product.