In-grinding coordinate automatic compensation method based on end face cylindrical grinder

The invention relates to an in-grinding coordinate automatic compensation method based on an end face cylindrical grinder. The method comprises the steps that when a coordinate system is established each time, difference values of target coordinates and mechanical coordinates are stored in a macro-variable, digital-controlled macro-variable memory coordinates are used for compensation amount and grinding wheel conditioning compensation amount, programs are called for computing coordinate values again each time a machine is started, and workpiece coordinates are automatically compensated; when coordinates are set manually, difference values before and after coordinate compensation are stored in the macro-variable, adding with grinding wheel diamond coordinates is carried out, and new diamond coordinates and grinding wheel frame safe position coordinates are computed; a measuring instrument is used for sending a signal to a CNC in a first gear for grinding multi-gear workpieces, a jumping-switching instruction