发明授权
- 专利标题: Die cushion mechanism, and apparatus and method for controlling the same
- 专利标题(中): 模具缓冲机构及其控制装置及方法
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申请号: US11265078申请日: 2005-11-03
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公开(公告)号: US07461530B2公开(公告)日: 2008-12-09
- 发明人: Yasusuke Iwashita , Tadashi Okita , Hiroyuki Kawamura , Satoshi Ikai
- 申请人: Yasusuke Iwashita , Tadashi Okita , Hiroyuki Kawamura , Satoshi Ikai
- 申请人地址: JP Minamitsuru-gun, Yamanashi
- 专利权人: Fanuc Ltd
- 当前专利权人: Fanuc Ltd
- 当前专利权人地址: JP Minamitsuru-gun, Yamanashi
- 代理机构: Drinker Biddle & Reath LLP
- 优先权: JP2004-321311 20041104
- 主分类号: B21C51/00
- IPC分类号: B21C51/00
摘要:
A control apparatus for controlling a die cushion mechanism including a servo-motor as a drive source and producing a force adapted to be applied to a slide in a press machine. The control apparatus includes a force commanding section for commanding a force to be produced by the die cushion mechanism; a force detecting section for detecting the force produced by the die cushion mechanism; a motor-speed detecting section for detecting an operating speed of the servo-motor; a slide-speed detecting section for detecting a moving speed of the slide; and a force controlling section for executing a force control on the servo-motor, based on a force command value commanded by the force commanding section, a force detected value detected by the force detecting section, a motor-speed detected value detected by the motor-speed detecting section and a slide-speed detected value detected by the slide-speed detecting section.