| 摘要 |
A press working machine includes a lower mold that is vertically movable between a first position for exchanging the lower mold, a second position for exchanging a workpiece, a third position for placing and displacing the workpiece on and from the lower mold, and a fourth position for pressing the workpiece between an upper mold and the lower mold. The machine further includes a servo motor and an eccentric cam for vertically moving the lower mold. A workpiece feed bar is moved only in the horizontal direction, whereby the structure of a feed bar horizontal mover is extremely simplified and the overall press working machine is also simplified in structure.
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