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[CN 202010273178.9] Billet-making hydraulic press and double-punch flange billet-making method
[CN 202010273178.9] A Billet-making Hydraulic Press and a Double-punch Flange Billet-making Method Title: A Billet-making Hydraulic Press and a Double-punch Flange Billet-making Method Application Number: CN 202010273178.9 Applicant: Shanghai Lanshi Heavy Industry Machinery Co., Ltd. Application Date: 2020-4-9 Patent Type: Invention Application The present invention provides a billet-making hydraulic press and a double-punch flange billet-making method: The billet-making hydraulic press includes a support frame, a main working cylinder, the support frame includes a base and an upper beam located above the base. The main working cylinder is arranged in the upper beam. The main working cylinder has a piston rod that can extend downward. The movable beam is connected to the piston rod. The lower punching cylinder is arranged in the base. The lower punching cylinder has a lower punch that can extend upward, and an upper punching cylinder placed in the movable beam. The upper punching cylinder and the lower punching cylinder are on the same axis, the upper punching cylinder has an upper punch capable of projecting downward. The invention can effectively improve the punching accuracy of the flange blank and is not easy to produce punching deviation.
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