A CNC machine tool is a highly automated machine tool. Its machining technology and surface forming methods are basically the same as those of ordinary machine tools. The fundamental difference between the two lies in the principles and methods of automatic control. This article will explain why high-precision CNC machine tools can replace ordinary machine tools.

　　1、 High-precision CNC machine tools Are automatically controlled by digital information. Information related to the processing of parts—the size parameters of the relative movement paths of the workpiece and the tool, the cutting parameters (such as the main movement and feed speed, return speed, etc.), and various auxiliary operations (main movement speed changes, tool changes, cutting fluid start and stop, workpiece clamping and loosening, etc.) are written in specified text, and the code composed of numbers and symbols is compiled into a machining program list in a certain format, and then the machining program is input into the CNC equipment. After analysis and processing by the CNC device, various signals and instructions corresponding to the program are issued to control the machine tool for automatic processing. The principles and processes of digital control are completed by the various components of the high-precision CNC machine tool described above.

　　2. In the actual processing of parts, the characteristics of high-precision CNC machine tools are summarized. High-precision CNC machine tools are becoming increasingly widely used in the mechanical manufacturing industry.

　　The characteristics of high-precision CNC machine tools are summarized as follows:

　　(1) Adaptable to the automatic processing of different parts. High-precision CNC machine tools Automatic processing according to the CNC program of the processed parts. When changing the processed parts, as long as the NC program is changed, it is not necessary to change special process equipment such as cams, profiling, templates, or drills. Therefore, its production preparation cycle is short, which is conducive to the updating and iteration of mechanical products.

　　(2) High production efficiency and machining accuracy, stable processing quality. High-precision CNC machine tools can use larger cutting parameters to effectively save processing time. Automatic speed change, automatic tool change and other auxiliary operation automation functions greatly shorten the auxiliary time, and no inspection and measurement are required between processes, so the productivity is 3 to 4 times higher than that of ordinary machine tools, or even higher. At the same time, due to its high precision, the software can also be used for precision correction and compensation; in addition, high-precision CNC machine tools automatically process parts according to CNC programs, which can avoid human error. It not only has high machining accuracy but also stable quality.

　　(3) It can efficiently and high-quality complete the processing of complex curved parts.

　　(4) The process is centralized, and one machine can be used for multiple purposes. CNC machine tools, especially CNC machine tools with automatic tool changing functions, can almost complete the processing of parts in one clamping, which not only reduces clamping errors and saves auxiliary time for inter-process transportation, measurement, and clamping, but also saves machine tool floor space and brings higher economic benefits. One high-precision CNC machine tool can replace multiple ordinary machine tools.

　　(5) High-precision CNC machine tools are equipment with high technical content, High-precision CNC machine tools The price is high, and the requirements for the technical level of operators and maintenance personnel are high. However, the economic benefits of using high-precision CNC machine tools are still very high.