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Inventor:
Ikai; Satoshi
Address:
Yamanashi, JP
No. of patents:
18
Patents:












Patent Number Title Of Patent Date Issued
8006538 Control device for servo die cushion August 30, 2011
A control device, for a servo die cushion, by which the speed of a die cushion is prevented from largely deviating from the speed of a slide, whereby the press force between the slide and the die cushion is not significantly reduced. The control device includes a slide speed detector
7923956 Control device for servo die cushion April 12, 2011
A control device, for a servo die cushion, capable of improving a response after overshoot generated by collision of a slide and a die cushion. The control device has a local maximum point judging part which judges a local maximum point based on the detected speed of the servomotor;
7845205 Die cushion controller December 7, 2010
A die cushion controller, for driving a die cushion, disposed in opposition to a slide of a press machine, by controlling a servo motor, including: a pressure command portion which prepares a pressure command value for exerting a predetermined pressure to a press material disposed be
7843152 Motor control apparatus November 30, 2010
A motor control apparatus comprises a control processing unit (3) creating a motor drive command, power supply processing units (2A to 2D) supplying a driving voltage to a motor, and a signal relay processing unit (4) supplying the motor drive command received from unit (3) to power supp
7757526 Method for changing force control gain and die cushion control apparatus July 20, 2010
A method for changing a force control gain expressed as a ratio of force error to velocity command value in a control circuit performing a force control of a servo motor driving a die cushion disposed opposite to a slide in a press machine. The method includes: obtaining a difference
7685860 Control device for press machine March 30, 2010
A control device for a press machine, by which one of the slide and the die cushion is suitably controlled, when a malfunction occurs in the other, such that the force between the slide and the die cushion does not excessively increase. The control device includes a slide control part
7657356 Controller February 2, 2010
An acceleration detection unit for detecting acceleration is mounted on a driven body. When a previous block is a positioning command, the system waits till the detected value of acceleration detected by the acceleration detection unit becomes equal to or less than a set value .alpha
7631528 Die cushion mechanism, and apparatus and method for controlling the same December 15, 2009
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
7619384 Controller for die cushion mechanism November 17, 2009
A controller for a die cushion mechanism includes: a spring element that is displaced according to force between the die cushion mechanism and a slide; a force instructor that instructs force; a force detector that detects force; and a speed instruction generator that generates a speed
7506530 Die cushion mechanism, and device and method for controlling the same March 24, 2009
A device 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 device includes a section for commanding a force to be produced by the die cushion mechanism; a section for detecting
7461530 Die cushion mechanism, and apparatus and method for controlling the same December 9, 2008
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
7421878 Control device for servo die cushion September 9, 2008
A control device of a die cushion mechanism, by which a force between a slide and a die cushion may follow a commanded value even in the rapid acceleration or deceleration of the slide and, moreover, a problem such as vibration of the mechanism may be prevented in the gradual acceler
7401492 Control device for a die cushion mechanism July 22, 2008
A control device (10) for a die cushion mechanism that produces a force for a slide (24) in a press machine, comprising slide velocity command-forming means (61) for forming a velocity command for the slide (24), die cushion velocity command-forming means (62) for forming a velocity
7392684 Control system for servo die cushion July 1, 2008
A control system, for a press machine including a plurality of die cushions, by which force control and position control may be suitably switched from one to another in each control device for each of the die cushions. The control system includes a plurality of control devices for co
7360391 Control device for servo die cushion April 22, 2008
A control device, for a servo die cushion, for precisely performing force control without using a force detector. The control device includes a slide position detecting part for detecting the position of the slide, a storing part for storing information representing a relation between th
7348745 Controller March 25, 2008
First and second acceleration detectors are attached to first and second sections on a driven body, and values of accelerations .alpha.1 and .alpha.2 in a travel direction of the driven body are detected. On the basis of the difference or sum of the acceleration values .alpha.1 and .
7187148 Controller March 6, 2007
Disclosed is a controller for restraining vibration of a driven element driven by a servomotor. The driven element driven by the servomotor is provided with acceleration detecting means. A correction value is obtained by multiplying a detected acceleration value detected by the accel
6741057 Servo controller for preventing downward displacement in gravitating axis May 25, 2004
A servo controller capable of preventing downward displacement of a gravitating axis of a machine when an excitation of a servomotor for driving the gravitating axis is discontinued. When a shutdown command is issued, a command for shifting a position of the gravitating axis by an of










 
 
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