Polishing device for mining machine accessory parts

The utility model discloses a mining machinery accessory part polishing device which comprises a protective shell, a machining table is fixedly arranged on the inner wall of the middle of the protective shell, a plurality of supporting rollers are fixedly connected in the machining table, and adjusting bolts are connected to two side plates of the protective shell in a threaded and sleeved mode. Clamping plates are rotatably connected to the opposite ends of the two adjusting bolts, an electric sliding rail is fixedly arranged on the lower end face of a top plate of the protective shell, an air cylinder is fixedly connected to the lower end of a sliding block of the electric sliding rail, a servo assembly is fixedly connected to the lower end of the air cylinder, and a grinding roller is fixedly connected to the output end of the servo assembly; a collecting box is arranged on the upper end face of a bottom plate of the protective shell. According to the grinding device for the mining machine accessory parts,