Device for withdrawal formula is punched a hole

The utility model provides a device for withdrawal formula is punched a hole has frame (1) at least, with cylinder or hydro-cylinder (2) that frame (1) is connected, with frame (1) articulated door type support (3), with first connecting rod (4) that door type support (3) is connected, first end with second connecting rod (5) of the piston rod connection of cylinder or hydro-cylinder (2), be located the nearly frame of first end (1) of first connecting rod (4) side and with drift connecting seat (6) that door type support (3) is connected, with drift (7) that drift connecting seat (6) are connected, with the die that punches a hole (8) that frame (1) is connected, the second end of first connecting rod (4) has waist shape hole, the second of second connecting rod (5) end through the round pin axle with waist shape hole sliding connection. Have the degree of automation height, the operating efficiency is high, can strengthen or dwindle the stamping press, adapts to the characteristics of different processing demands