Metal deforming – With use of control means energized in response to activator... – Sensing tool or tool-linked part
Reexamination Certificate
2005-11-03
2008-12-09
Tolan, Edward (Department: 3725)
Metal deforming
With use of control means energized in response to activator...
Sensing tool or tool-linked part
C072S020200, C072S021400, C072S443000, C072S454000
Reexamination Certificate
active
07461530
ABSTRACT:
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.
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Ikai Satoshi
Iwashita Yasusuke
Kawamura Hiroyuki
Okita Tadashi
Drinker Biddle & Reath LLP
Fanuc Ltd
Tolan Edward
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