The invention relates to the technical field of fire-fighting
butterfly valve production, in particular to a fire-fighting
butterfly valve assembly punch forming device which comprises a
machine body, a lower supporting plate is fixedly installed on the upper end face of the
machine body, limiting sliding columns are fixedly installed at the four corners of the upper end face of the lower supporting plate, and an upper supporting plate is jointly and fixedly installed at the upper ends of the limiting sliding columns. A driving mechanism used for providing power for the
stamping fluted disc is arranged on the upper supporting plate. A positioning, flat pressing and
stamping integrated
operation model is adopted to complete three-stage punch forming operation of the fire-fighting
butterfly valve handle fluted disc, in the three stages of punch forming operation, fitting supporting, expansion positioning, bearing plate fitting and rectangular limiting frame locking are provided correspondingly, the
stamping force can be evenly dispersed, excessive deformation of materials is prevented, and the service life of the fire-fighting butterfly valve
handle fluted disc is prolonged. The flatness and the overall shape of the fluted disc are improved, it is ensured that the fluted disc is kept at the correct position in the
stamping process, the locking stability is further enhanced, the
structural integrity and the anti-fatigue performance of the fluted disc are improved, and finally it is ensured that the stamping quality of each fluted disc meets the preset standard.