The invention discloses a
metal plastic forming device with a bidirectional
extrusion function. The
metal plastic forming device comprises a main cylinder
piston rod in a main operating cylinder, a middle movable plate, an upper punch, a force transfer rod, an upper die core, an upper stress ring, a lower stress ring, a lower die core, a lower movable plate, a lock catch, a lock catch
piston rod, a lower crossbeam, a fastening cylinder, a lower punch, an upper movable plate, a first limiting spring, a first limiting rod, a second limiting spring and a second limiting rod. According to the device, only a main operating cylinder and a main cylinder
piston rod which corresponds to the main operating cylinder need to serve as power heads, and then blanks can be extruded in up and down directions, so that a
machine tool is simple in structure, and the manufacturing cost is greatly reduced; due to bidirectional
extrusion, the deformation coefficient of materials is lowered, the possibility of internal cracks of parts is low, and the requirements on
energy supply are reduced; and moreover, the device is reliable in operation and convenient to maintain.