Grinding machine special for automobile parts

The special grinding machine for the automobile parts comprises a machine tool, a gear belt and an iron rod, a machining table is fixed to the machine tool and located below a grinding mechanism, a containing groove is formed in the upper surface of the machining table, the iron rod is located in the containing groove, two sets of limiting rings are arranged on the iron rod, and the gear belt is arranged on the gear belt. A threaded hole is formed in the connecting block in a penetrating mode, the main threaded shaft and the auxiliary threaded shaft are in threaded connection with the connecting block, a coil is evenly wound around the iron rod and located between the two limiting rings, a protective sleeve is installed on the outer side of the iron rod, and the two ends of the protective sleeve are installed on the limiting rings. By electrifying the coil, the coil is matched with the iron rod to form an electromagnet, so that the surface of the protective sleeve has magnetism, scrap iron generated by polish