Automobile part machining and grinding device

The utility model belongs to the technical field of automobile part polishing, and particularly relates to an automobile part machining and polishing device. Comprising a base, the base is provided with a dust containing groove and a lifting block, an air pump is fixedly arranged on the lifting block, the air pump is connected with an air blowing pipe, an air outlet plate is fixedly connected to the air blowing pipe, rack guide rails are symmetrically and fixedly arranged on the lifting block, sliding grooves are formed in the rack guide rails, and sliding plates are arranged in the sliding grooves in a sliding mode; a second motor is fixedly connected to the sliding plate, a cylinder is fixedly connected to an output shaft of the second motor, a gear is fixedly arranged on the cylinder, a polishing brush is fixedly connected between the cylinders on the two sides, the gear is meshed with the rack guide rail, a housing is fixed to the air outlet plate, and the polishing brush is located in the housing. A plur