How to improve the use and management level of CNC machine tools —— Abstract of graduation thesis CNC machine tools include turning, milling, planing, grinding, boring, drilling, EDM, shearing, bending and laser cutting. The so-called machining is to process metal blank parts into required shapes, including dimensional accuracy and geometric accuracy. The equipment that can accomplish the above functions is called a machine tool. CNC machine tools are developed on ordinary machine tools, and CNC is digital control. After the CNC system is installed on the machine tool, the machine tool becomes a CNC machine tool. Of course, the development of ordinary machine tools to CNC machine tools is not just as simple as adding a system. For example, from the development of milling machine to machining center, the structure of machine tool has changed, and the most important thing is to increase the tool magazine, which greatly improves the accuracy. The main functions of machining center are milling, boring and drilling. What we generally refer to as CNC equipment mainly refers to CNC lathes and machining centers. CNC lathe, milling, planing, grinding, boring, drilling, EDM, shearing, bending, laser cutting, etc. They are all machining methods. The so-called machining is to roughly process the metal into the required shape, including both dimensional accuracy and geometric accuracy. The equipment that completes this function is called machine tool, and CNC machine tools are generally digital control means developed on the basis of CNC. Install a CNC system on the machine tool, and the machine tool becomes a CNC machine tool. Of course, the development of ordinary machine tools to CNC machine tools is not only a simple installation system, for example, from milling machine to machining center, the structure of machine tools has changed, and the most important thing is the increase of tool storage and greatly improved accuracy. The main functions of machining center are milling, boring and drilling. We usually refer to CNC equipment, mainly CNC lathes and machining centers.