Feeding and discharging method of fine grinding machine

The invention belongs to the technical field of grinding machines, and discloses a fine grinding machine feeding and discharging method. The disclosed feeding and discharging method of the lapping grinding machine comprises the steps that magnetic adsorption devices used for grabbing workpieces are arranged on the feeding side and the discharging side of the lapping grinding machine correspondingly, and the workpieces are adsorbed and grabbed by the magnetic adsorption devices and placed on two grinding rollers; a spring propelling device arranged on the feeding side of the fine grinding machine acts; when the spring propelling device just starts to work, an elastic pusher of the spring propelling device is compressed; when the workpiece pushed by the spring pushing device is in contact with the previous group of workpieces, the elastic pusher is continuously forced to be compressed; after the spring propelling device continues to advance forwards to reach the stroke, the spring propelling device stops pushin