Paint spraying tray capable of being rapidly replaced and cleaned for aluminum alloy hub machining

The invention discloses a paint spraying tray capable of being rapidly replaced and cleaned for aluminum alloy hub machining. The paint spraying tray comprises a main body, wherein two fixing rods aresymmetrically welded at the bottom part of the main body, and the fixing rods are perpendicular to the main body; first grooves are formed in the ends, away from the main body, of the two fixing rods, and the opening directions of the two first grooves are far away from each other; two second springs are connected to each of the interiors of the first grooves, and the ends, extending out of the first grooves, of the second springs are connected with limiting blocks; and a mounting base is arranged below the main body, wherein a second groove is formed in the middle position of the mounting base, a third spring is arranged in the second groove in a sleeved mode, and the end, extending out of the second groove, of the third spring is connected with a restoration rod. The paint spraying trayhas the advantages of bei