| 摘要 |
A press working machine vertically moves a lower mold (12) between a first position for exchanging the lower mold (12), a second position for exchanging a workpiece, a third position for placing and displacing the workpiece on and from the lower mold (12), and a fourth position for pressing the workpiece with an upper mold (15) and the lower mold (12), by a servo motor and an eccentric cam (8). Thus, a feed bar (16) is moved only in the horizontal direction, whereby the structure of a feed bar horizontal mover (18) is extremely simplified and the overall press working machine is also simplified in structure. <IMAGE> |
