The grinder is a grinding machine that grinds the surface of the workpiece with a grinding tool coated or embedded with abrasives. It is mainly used for high precision plane, inner and outer cylindrical surface, conical surface, spherical surface, thread face and other surface in grinding workpiece. The main types of grinder are disc grinding machine, rotary shaft grinder and a variety of special grinding machine. The control system of grinding machine takes plc as control core, and text display is the control mode of Man-machine dialogue interface. Man-machine Dialogue interface can be the maintenance of equipment, operation, failure and other information and people dialog, intuitive operation interface, program control, simple operation. All-round security considerations, the Non-normal state of the error operation is invalid. Real-time monitoring, fault, error alarm, easy to maintain.