Global IP Counselors, LLP
Die cushion device
In the die cushion device, a shock absorber device relieves shock between a cushion pad and a support section. The shock absorber device includes a damping section and an elastic section. The damping section generates reaction force in accordance with the relative speed of the cushion pad with respect to the support section. The elastic section generates reaction force in accordance with the relative displacement of the cushion pad with respect to the support section. The controller section controls a servomotor so that a speed difference between the speed of the slide member and the speed of the support section is set to be a predetermined target speed difference value that changes over time.
Komatsu Ltd.
B
B21D
inventional
Eiji Hiroyuki Takeo Masaya Hirohide Ryota Takuji
Doba Ito Arikabe Nakagawa Sato Yoshimura Miyasaka