Semiconductor chip mounter with self-cleaning function

The invention discloses a semiconductor chip mounter with a self-cleaning function, and relates to the technical field of chip mounters, the semiconductor chip mounter comprises a rack, a chip mounting head group, a suction nozzle, a connecting frame, a plurality of butt joints, a lower pressing plate and a plurality of sliding rods, the connecting frame is connected to the rack, and one side of the connecting frame is slidably connected with a first positioning plate in the vertical direction; a first spring is connected between the first positioning plate and the connecting frame, the multiple butt joints penetrate through the first positioning plate, the lower pressing plate is slidably connected to the connecting frame in the vertical direction, a second spring is connected between the lower pressing plate and the first positioning plate, the multiple sliding rods are matched with the multiple butt joints, the sliding rods are inserted into the butt joints, and the sliding rods are slidably connected with