Self-chip-removal punching mechanism for camera mounting hole of rear cover of mobile phone

A self-chip-removal punching mechanism for a camera mounting hole of a rear cover of a mobile phone comprises an equipment cabinet, a punching machine arranged above the equipment cabinet, a conveying belt, a driving assembly, a linkage assembly, a limiting assembly and a self-chip-removal base arranged on the conveying belt, wherein the conveying belt, the driving assembly, the linkage assembly and the limiting assembly are arranged on the equipment cabinet. The driving assembly is driven by a stepping motor and drives the conveying belt and the linkage assembly at the same time, and the linkage assembly drives the limiting assembly. A chip groove is formed in the equipment cabinet; a chip removal cylinder is arranged on the top face of the chip removal base, a chip removal opening is formed in the side face of the chip removal cylinder, a guide plate is obliquely arranged in the chip removal cylinder, and the guide plate penetrates out of the chip removal opening and extends to the position above the chip r