Punching die for punching ventilation channel steel notch

The utility model discloses a punching die for punching a ventilation channel steel notch, which comprises an upper die assembly and a lower die assembly, and is characterized in that the upper die assembly comprises a die handle, an upper die base plate, a punch fixing plate, a screw rod, a punch, a rubber block and a stripper plate, the die handle is fixedly connected with the upper die base plate, the upper die base plate is fixedly connected with the punch fixing plate, and the punch fixing plate is fixedly connected with the screw rod. The punch fixing plate is fixedly connected with the punch, the punch fixing plate is fixedly connected with the rubber block, the rubber block is fixedly connected with the stripper plate, and the screw penetrates through the stripper plate and is in threaded connection with the punch fixing plate. The utility model relates to the field of stamping dies, in particular to a stamping die for stamping ventilation channel steel notches. The technical problem to be solved by t