Control device for a parallel slider device, control method and measuring device using same
AssigneeKuroda Precision Industries Ltd.
InventorsKaoru Naoi, Yoichi Ishizaki, Tatsuhito Inouchi, Masahiro Iwasaki
Life of this patent
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Abstract
In a parallel slider device, the two sliders are allowed to move in a smooth manner without interfering with each other. A same position command is given to a front servo controller for a front linear servo motor and a rear servo controller for a rear linear servo motor, and the front servo controller and the rear servo controller are provided with mutually different control gains.
Claims12
A control device for a parallel slider device, the parallel slider device comprising a first guide rail and a second guide rail that are disposed parallel to each other, a first slider and a second slider slidably supported by the first and second guide rails, respectively, along a lengthwise direction of the guide rails, a coupling means for mechanically coupling the first and second sliders to each other and a first electric servo actuator and a second electric servo actuator for driving the first slider and a second slider, respectively, in the lengthwise direction of the guide rails,
- wherein the control device comprises a first position control unit for controlling an operation of the first electric servo actuator and a second position control unit for controlling an operation of the second electric servo actuator, and
- wherein a same position command is given to the first and second position control units, and the first and second position control units are provided with mutually different control gains.
A control method for a parallel slider device, the parallel slider device comprising a first guide rail and a second guide rail that are disposed parallel to each other, a first slider and a second slider slidably supported by the first and second guide rails, respectively, along a lengthwise direction of the guide rails, a coupling means for mechanically coupling the first and second sliders to each other and a first electric servo actuator and a second electric servo actuator for driving the first slider and a second slider, respectively, in the lengthwise direction of the guide rails,
- wherein an operation of the first electric servo actuator is controlled by a first position control unit and an operation of the second electric servo actuator is controlled by a second position control unit, and
- wherein a same position command is given to the first and second position control units, and the first and second position control units are provided with mutually different control gains.
Dependencies are inferred from the claim text.