Automatic grinding device for valve rocker shaft

The utility model discloses an automatic polishing device for a valve rocker shaft, relates to the technical field of polishing equipment, and aims to solve the problem of low efficiency in a single piece or small batch machining process due to the fact that automatic programming of the automatic polishing equipment occupies long time in the small batch or single piece machining process. Accordingto the technical scheme, the polishing machine comprises a machine frame, a polishing assembly and a moving assembly, the polishing assembly and the moving assembly are installed on the machine frame, the polishing assembly comprises a polishing driving motor and a polishing disc, the polishing disc is installed at the output end of the polishing motor, and the moving assembly comprises a movingplatform, a lead screw nut structure, an electric driving structure, a manual driving structure and a switching structure. And the moving platform is arranged on the screw rod nut structure and is driven by the screw rod nut s