A lapping machine is a grinding machine that grinds the surface of a workpiece with a lap that is coated or embedded with abrasive. It is mainly used for grinding high-precision planes, inner and outer cylindrical surfaces, conical surfaces, spherical surfaces, thread surfaces and other profiles in workpieces. The main types of grinders are disc grinders, rotary grinders and various special grinders. The grinding machine control system takes PLC as the control core, and the text display is the control mode of the human-machine dialogue interface. The man-machine dialogue interface can talk to people about equipment maintenance, operation, faults and other information; the operation interface is intuitive and convenient, program control, and simple operation. For all-round security considerations, misoperations in abnormal conditions are invalid. Real-time monitoring, faults, error alarms, and easy maintenance.