Automobile part machining and grinding device

The utility model discloses an automobile part processing and polishing device which comprises a polishing box and a brake pad to be polished, a plurality of sets of polishing wheels are arranged on the front side and the rear side of an inner cavity of the polishing box, the mesh number of the multiple sets of polishing wheels is gradually increased from left to right, and driving assemblies used for driving the polishing wheels to rotate are installed on the front side and the rear side of the inner cavity of the polishing box. A positioning structure used for positioning the brake pad is arranged between the front set of grinding wheels and the rear set of grinding wheels, the positioning structure moves from left to right, the positioning structure is limited in an inner cavity of the grinding box through a limiting assembly, and a collecting assembly used for collecting grinding scraps is installed at the bottom of the inner cavity of the grinding box. Through the arrangement of the positioning structure