The invention discloses a universal automatic feeding device for a
punch press. The universal automatic feeding device comprises a ball backing plate, balls, a regulating nut, a magnetic suction plate, a positioning nail, a
metal positioning backer, a computer slot, a push plate, a push rod, a light-rail guide rod, a bearing,
ball screw rods, a guide rod support, a light-rail base plate, moving guide plates, a
ball bearing bush, a light-rail guide pillar,
servo motors, bearing fixing plates and a computer, wherein two special light rails which are connected in a cross manner are arranged on the device in design, the two special light rails are respectively provided with one
servo motor which is used for respectively driving the corresponding
ball screw rod to rotate, the magnetic suction plate is connected onto the upper-layer
light rail and is used for tightly sucking a
metal plate to be punched, the
servo motors are controlled by the computer so as to realize automatic
metal plate feeding in the directions of back and forth as well as left and right. The universal automatic feeding device for the
punch press is suitable for various punch presses to complete precise
punching on workpieces of various shapes and automatic discharging of various punched pieces.