Paint spraying device for automobile parts

The invention belongs to the technical field of automobile part paint spraying, and particularly relates to an automobile part paint spraying device which comprises a workbench, a through groove is formed in the workbench, a first sliding groove is formed in the top of the workbench and located on one side of the through groove, a first threaded rod is rotatably installed in the first sliding groove, and a first sliding block is slidably installed in the first sliding groove and located on the first threaded rod. A U-shaped plate is fixedly mounted at the top of the first sliding block, a first fixing plate and a second fixing plate are fixedly mounted at the positions, located on the two sides of the through groove, of the top of the U-shaped plate correspondingly, a plurality of rotating discs are rotatably mounted on one side of the second fixing plate, third sliding grooves are formed in the rotating discs, and bidirectional threaded rods are rotatably mounted in the third sliding grooves; when the whole