Controller for machining gears
First Claim
1. A gear machining controller having servo systems for controlling a first motor for driving a gear machining tool and a second motor for driving a workpiece, said controller comprising:
- position control means provided in the servo systems for respectively controlling positions of the first motor and the second motor based on position deviations between position commands and position feedback amounts at every processing period; and
position amending means provided for at least one of said position control means, for storing amendment amounts based on the position deviations for each cycle period, and amending the position command at a present processing period based on the amendment amount at the processing period preceding by one cycle period.
1 Assignment
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Accused Products
Abstract
A gear machining controller capable of performing a gear machining of high precision. A gear machining tool and a workpiece are driven by a first motor and a second motor, respectively, to be synchronized with each other, to perform gear machining on the workpiece such as gear cutting and gear finishing. A position amending section is provided at least one of position control loops of servo systems for controlling position/velocity of the first and second motors. The position amendment section obtains amendment amounts based on position deviations and amends a position command of a present processing period by the amendment amount obtained at the processing period preceding by one cycle period of variation of a load torque. An error of synchronization of the first and second motors is reduced so that the gear machining of high precision is performed.
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Citations
6 Claims
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1. A gear machining controller having servo systems for controlling a first motor for driving a gear machining tool and a second motor for driving a workpiece, said controller comprising:
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position control means provided in the servo systems for respectively controlling positions of the first motor and the second motor based on position deviations between position commands and position feedback amounts at every processing period; and
position amending means provided for at least one of said position control means, for storing amendment amounts based on the position deviations for each cycle period, and amending the position command at a present processing period based on the amendment amount at the processing period preceding by one cycle period. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification