发明名称 |
Die cushion mechanism, and apparatus and method for controlling the same |
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 outside. 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 a force produced by the die cushion mechanism; 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 and a force detected value detected by the force detecting section; and an abnormality preventing section for preventing, in association with a control state of the servo-motor, the die cushion mechanism from producing an abnormal force.
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申请公布号 |
US7631528(B2) |
申请公布日期 |
2009.12.15 |
申请号 |
US20050265187 |
申请日期 |
2005.11.03 |
申请人 |
FANUC LTD;KOMATSU LTD;KOMATSU INDUSTRIES CORPORATION |
发明人 |
IWASHITA YASUSUKE;OKITA TADASHI;KAWAMURA HIROYUKI;IKAI SATOSHI |
分类号 |
B21D55/00;B21C51/00;B21J9/18 |
主分类号 |
B21D55/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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