The invention relates to the technical field of mechanical parts, and discloses a mechanical part surface
sand blasting device. The device comprises a shell, and a collecting bin is fixedly connectedto the interior of the shell. According to the device, automatic linear moving
sand blasting is conducted, so that the
moving speed is kept consistent, two hands are liberated, and the situation thatduring manual operation, the
moving speed is not constant, and consequently the
scrap removing degree is not uniform is avoided; by means of the
capacitance principle, the magnetic state of an attraction tool is controlled, so that the
scrap removing operation is conveniently conducted, the linkage between structures is improved, and the high
automation degree is achieved; a mixture of sandstone and
scrap iron is stored and turned over, so that the scrap iron in the mixture is conveniently attracted by the attraction tool, the sandstone is separated from the scrap iron, and the sandstone can be conveniently recycled; and the attraction tool attracting the scrap iron is automatically moved out of the collecting bin, by means of the property of an
electromagnet, the attraction tool losing
magnetism does not attract the scrap iron any more, the scrap iron automatically falls off under the action of the gravity of the scrap iron, and the scrap iron is intensively collected.