Surface treatment device for automobile part machining

The utility model relates to the technical field of automobile part machining, in particular to a surface treatment device for automobile part machining, and solves the problems that a tool polishing wheel used for automobile part surface polishing is small in polishing area and inconvenient to replace, and has the risk of flying out to hurt people. A motor is fixed to the upper surface of the operation table through screws, the output end of the motor is sleeved with a connecting shaft, the surface of the connecting shaft is sleeved with a grinding wheel, a movable frame is clamped to one end of the operation table, a clamping shaft is connected into the movable frame through a bearing, and a dust hood is fixed to the upper surface of the operation table through screws. According to the device, the grinding wheel is convenient to replace, the situation that the grinding wheel flies out and hurts people due to the fact that the grinding wheel is not firmly fixed is effectively avoided, the polishing area is l