02 CNC machine tool is short for Computer Controlled Control Machine Tools (Computer Controlled Control Machine Tools) and is an automated machine tool equipped with a program control system. The control system can logically process programs with control codes or other symbolic instructions, decode them, express them with coded numbers, and input to the numerical control device through an information carrier. Through computational processing, various control signals are sent to the CNC device to control the movement of the machine tool, and the parts are automatically processed according to the shape and size required by the drawings. The CNC machine tool solves the problems of complex, precise, small-batch and multi-variety parts processing well. It is a flexible and capable automatic machine tool, which represents the development direction of modern machine tool control technology, and is a typical mechatronics product. The operation and monitoring of the CNC machine tool is all done in this CNC unit, which is the brain of the CNC machine tool. Compared with ordinary machine tools, CNC machine tools have the following characteristics: the operation and monitoring of CNC machine tools are all completed in this CNC unit, which is the brain of the CNC machine tool. Compared with ordinary machine tools, CNC machine tools have the following characteristics: 1, strong adaptability to processing objects, adapting to the characteristics of single production of molds and other products, providing a suitable processing method for mold manufacturing; 2, high processing accuracy, stable processing quality; 3, multi-coordinate linkage, can process parts with complex shapes; 4, when processing parts change, generally only need to change the CNC program, which can save production preparation Time; 5. The machine tool itself has high precision and rigidity, and can choose favorable processing dosage and high productivity (generally 3-5 times that of ordinary machine tools); 6. The machine tool has a high degree of automation, which can reduce labor intensity; 7. It is conducive to the modernization of production management. Numerical control machine tools use digital information and standard codes to process and transmit information, and use computer control methods to lay the foundation for the integration of computer-aided design, manufacturing and management; 8. The quality requirements for operators are higher, and the technical requirements for maintenance personnel are higher; 9. High reliability.