Forming die for C-shaped half-frame support of automobile safety belt

The invention discloses a forming die for a C-shaped half-frame support of an automobile safety belt. The forming die comprises an upper die part and a lower die part. The lower die part comprises a bottom plate, and a following type lateral wedge positioning mechanism, a lower die main body, a floating material positioning plate and a laser detection sensor which are arranged on the bottom plate; the floating material positioning plate is vertically installed on the top of the lower die body in a sliding mode, a lower riveting head is fixedly arranged on the lower die body, a vertical installation channel is formed in the lower portion of the lower riveting head, a lower ejector pin is installed in the vertical installation channel in a sliding mode, the lower section of the lower ejector pin is sleeved with a second spring, and an adjustable jackscrew is arranged at the bottom of the vertical installation channel. The upper die part comprises an upper die base and a wedge punch installed on the side portion