CNC device refers to the application of this technology. CNC technology is also called Computer CNC Technology (CNC, Compute Numerical Control), which currently uses a computer to implement digital program control technology. This technology uses a computer to perform the motion trajectory of the device's motion trajectory and peripheral operation timing control function according to the control program stored in advance. Because the computer is used to replace the CNC device that was originally composed of hardware logic circuits, the implementation of various control functions such as storage, processing, operation, and logical judgment of the input operation instructions can be completed through computer software to handle the generated micro instruction transmission. The servo drive device drives motor or hydraulic execution element to drive the device to run.