In the new form of China's rapid economic development, the mold industry has developed rapidly. In the numerical control machining technology, the CNC machine tool is a high-efficiency automatic machine tool.. By using the N/C technology, the human error is greatly reduced, and the machining characteristics of the workpiece can be accurately reflected when the CNC machine tool is processed, the rigidity of the part is improved, and the generation of waste products is reduced. The components of a CNC machine include: measurement system, control system, servo system and open-loop or closed-loop system. Its emergence has brought a very large and novel control concept to the design and manufacture of products in the manufacturing industry. Moreover, the manufacturing precision of the mold can be significantly improved, the production efficiency can be greatly improved, and the development cycle can be greatly shortened. In the numerical control manufacturing of molds, the application of numerical control machining can improve the processing precision, shorten the manufacturing cycle, and reduce the manufacturing cost. The development of CNC machining technology has brought revolutionary changes to mold manufacturing, making it difficult to process complex shapes such as difficult-to-machine surfaces, while reducing the technical requirements for workers. It can solve medium and small batches and multiple varieties without using complex and special tooling fixtures. Therefore, the application of CNC machining in the mold has brought revolutionary changes to mold manufacturing. The N/C technology may be used to control an ordinary drill press or to grind an outer contour of a component that is too complex to be processed by conventional methods. There are three types of control systems for numerically controlled equipment: point control systems, linear cutting systems, and contour control systems. It uses CNC machining program to control the automatic machining of CNC machine tools. The problem of automated processing of complex parts is very beneficial for accelerating product updates. It is very important to understand the various precision mold manufacturing components of the CNC part before it is designed. At the same time, due to the wide application of numerical control processing, it can reduce the excessive dependence of mold manufacturing on the experience of fitters. Today, thousands of CNC machines are used in large and small machinery factories. In developed countries, CNC machine tools are widely used in both military and civilian sectors. Digital control is an important part of numerical control technology. China has made great achievements in the development of CNC machine tools in terms of variety, quantity and quality. Digital control (commonly called N/C) can be defined as the process of controlling a machine tool to complete a machining process by using a series of commands called code-encoded instructions, such as letters and numbers. CNC machining has become the most important factor affecting the quality and cycle of mold processing, and is therefore a key technology in the field of mold processing
