Polishing device for automobile part production

The utility model relates to the technical field of polishing devices, in particular to a polishing device for automobile part production, which comprises a polishing assembly, the polishing assembly comprises a workbench and a turnover electric cylinder, the upper surface of the workbench is provided with a mounting rack, and the lower part of the inner side wall of the mounting rack is rotatably connected with a screw rod through a bearing. The clamping motor drives the screw to rotate clockwise so that the two nut seats can get close to each other, the clamping seats are driven to get close to each other to clamp and fix an automobile part product, the lifting electric cylinder drives the connecting frame to move downwards so that the grinding roller can be attached to the part product, and the grinding motor drives the grinding roller to rotate to grind the surface of the part product. The overturning electric cylinder drives the rack to move front and back, and then the gear, the rotating column and the