| 摘要 |
PROBLEM TO BE SOLVED: To provide a dynamic balance device for a press machine, which can satisfactorily be balanced with slide-side inertia force regardless of a change in mass of an upper die attached to a slide, despite a relatively simple and inexpensive configuration, and to provide a press machine having this device.SOLUTION: A dynamic balance device 100 for a press machine 1 according to the invention comprises: a first inertia force generating mechanism (counter weight 130) that generates a first inertia force acting in opposite direction to the inertia force of a slide side motion body by interlocking with the slide 4 of the press machine 1; a second inertia force generating mechanism (sub-weight 140) that generates a second inertia force by interlocking with the slide 4; and an adjusting mechanism (a worm gear 141, worm shaft 150, and position alteration motor 160) that alters the generation characteristic of the second inertia force. The dynamic balance device 100 generates an inertia force composed of the first and second inertia forces. |
