Continuous punch forming method of plates

The invention discloses a continuous punch forming method of plates. The method is characterized by comprising the following steps of S1, feeding the plates one by one by a conveying table; S2, driving a near-arc section on a cam to make contact with two pin rollers, and feeding the plates to a position over a lower die; S3, bending and punching the plates, allowing a first transition section on the cam to gradually make contact with the two pin rollers, allowing a vertical sliding plate to gradually ascend, bending the plates along with the continuous ascending of the vertical sliding plate,allowing an upper punch to punch a bottom of a U-shaped connecting piece, meanwhile, allowing a transverse sliding plate to move leftwards, and allowing a left punch to punch a side wall of the U-shaped connecting piece; S4, conducting pressure maintaining forming; S5, unloading the U-shaped connecting piece, and S6, repeating steps S2 to S5 to achieve the automatic continuous stamping of the plates. The invention provide