Grinding method and device

The embodiment of the invention provides a grinding method and a grinding device. The method comprises the steps of obtaining the weight and specification of a plate-shaped roller, determining coarsegrinding parameters and fine grinding parameters, performing coarse grinding on the plate-shaped roller, and performing fine grinding on the plate-shaped roller, wherein the coarse grinding parametersinclude the first traverse moving speed of 800 to 1200 mm/min, the first amount of feed of 0.001 to 0.0015 mm/times, the first grinding wheel speed of 24 to 27 m/s, the first rotating speed of the plate-shaped roller of 24 to 28 m/s, the output torque, which is 5 to 6% of the maximum torque, of a motor and the coupling pressure of 2500 N, and the fine grinding parameters include the second traverse moving speed of 600 to 700 mm/min, the second amount of feed of 0.0005 to 0.0008 mm/times, the second grinding wheel speed of 25 to 28 m/s, the rotating speed of the plate-shaped roller of 28 to 32m/s, the output torque, wh