Special riveting machine for vacuum booster

The invention discloses a special riveting machine for a vacuum booster. The special riveting machine comprises a rack, wherein a riveting device is arranged on the rack; the riveting device comprises a location disc installed on the rack and used for placing the vacuum booster; a riveting guide device is fixedly installed at the outer side of the location disc in a sleeving manner; radially-sliding riveting knives are distributed on the riveting guide device in the circumferential direction; the riveting knives are connected with a return limit device; an outer riveting disc is rotationally installed at the outer side of the riveting guide device in a sleeving manner; riveting bulges corresponding to the outer ends of the riveting knifes are distributed on the inner circumferential wall of the outer riveting disc in a bulging manner in the circumferential direction; and a riveting propelling device is arranged between the rack and the outer riveting disc. The special riveting machine disclosed by the inventi