In order to keep up with the trend of the times and promote the development and progress of enterprises, most casting manufacturers are carrying out or preparing for the numerical control of enterprise machine tools. However, due to the limitation of the original production level, the number of ordinary machine tools of many casting enterprises is huge. If the new machine tools are re-purchased and the new CNC machine tools are re-purchased, it will cost a lot of operating funds, which brings new problems to the numerical control of the machine tools of casting enterprises.

It is understood that numerical control technology, that is, the use of digital control methods to achieve automatic control of a certain work process. It controls the mechanical quantities such as position, angle, speed, etc. and the amount of switching related to the flow of mechanical energy. The generation of numerical control relies on the emergence of data carriers and binary form data operations. CNC has become an irreversible trend in the production of modern large machines. With its many advantages, CNC has created a hurricane in the casting industry, and the casting industry must carry out numerical control transformation.

The advantages of numerical control transformation of casting machine tools are as follows: The numerical control of casting machine tools can process complex castings such as curves and curved surfaces that cannot be processed by traditional machine tools. Automated machining can be achieved, and it is flexible automation, which can increase efficiency by 3 to 7 times compared with conventional machine tools. The processed castings have high precision and small dimensional dispersion, which makes the assembly easy and eliminates the need for workers to "repair". It can realize the concentration of multiple processes and reduce the frequent handling of castings between machine tools. With automatic alarm, automatic monitoring, automatic compensation and other self-discipline functions, it can achieve long-term unattended processing. It reduces the labor intensity of workers, saves labor (one person can take care of multiple machine tools), reduces tooling, shortens the trial cycle and production cycle of new products, and responds quickly to market demands.

Therefore, the application of numerical control technology has brought about major changes in the traditional manufacturing industry, which is why the casting machine tool industry is catching up with the CNC trend.