1.High degree of automation, can reduce the manual labor intensity of the operator. The CNC machining process is automatically completed according to the input program. The operator only needs to start the tool setting, loading and unloading the workpiece, and changing the tool. In the machining process, the main task is to observe and supervise the operation of the machine tool. However, due to the high technical content of CNC machine tools, the mental work of operators is improved accordingly.

2. This project has high precision and stable quality. The positioning accuracy and repeated positioning accuracy of CNC machine tools are very high, so it is easy to ensure the consistency of the size of a batch of parts. As long as the process design and program are correct and reasonable, combined with careful operation, it can ensure that the parts can obtain higher processing accuracy, and it is also convenient for the quality control of the processing process.

3. High production efficiency. CNC machining can process multiple machining surfaces in one clamping, generally only the first workpiece is detected, so many intermediate processes, such as scribing, dimension detection, etc., can be omitted in ordinary machine tool processing, which reduces the auxiliary time. Moreover, due to the stable quality of parts processed by CNC, it brings convenience for subsequent processes, and its comprehensive efficiency is significantly improved.

4. It is convenient for the development and modification of new products. In general, there is no need for many complex process equipment in the CNC machining process, the parts with complex shape and high precision can be processed by programming, When the product is remodeled and the design is changed, only the program is changed, and there is no need to redesign the tooling. Therefore, CNC machining can greatly shorten the product development cycle, and provide a shortcut for the development, improvement and modification of new products.

5. It can develop to a more advanced manufacturing system. Numerical control machine tool and its processing technology are the basis of computer aided manufacturing.

6. The initial investment is large. This is due to the high cost of CNC machine tools, long preparation period for the first processing and high maintenance cost.

7. High maintenance requirements. Numerical control machine tool is a typical product of mechatronics, which is technology intensive. It needs maintenance personnel to understand not only machinery, but also microelectronics maintenance knowledge, and better maintenance equipment.