Automobile drum brake pad outer arc grinding machine

The invention discloses an automobile drum brake pad outer arc grinding machine. The grinding machine comprises a support plate, wherein support columns are vertically arranged at four corners at thebottom of the support plate; buffering mechanisms are arranged at the bottoms of the support columns; a transverse plate is transversely arranged between the inner sides of every two support columns;dust collection boxes are arranged at the right ends of the tops of the transverse plates; and a first driving motor is arranged at the left end of the bottom of the support plate. According to the automobile drum brake pad outer arc grinding machine, positioning springs are extruded, clamping plates are pushed to be close to a fixing seat, consequently, the interval between the clamping plates isincreased, a drum brake pad is placed on a turntable, then the clamping plates are loosened, through the elastic action of the positioning springs, the fixing seat can be quickly reset to fixedly clamp the drum brake pad, the