At present, the numerical control system on the market in China can be divided into high-, medium-, and low-grade CNC systems according to the performance and market price of the products. The medium and high-grade CNC systems are basically monopolized by foreign CNC products, such as Fanuc, Siemens, Mitsubishi, etc. The domestic CNC system is mainly based on medium and low-grade CNC systems, mainly including Guangzhou CNC and China.