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Controller for machining gears

  • US 6,823,235 B2
  • Filed: 12/20/2002
  • Issued: 11/23/2004
  • Est. Priority Date: 12/27/2001
  • Status: Active Grant
First Claim
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1. A gear machining controller having servo systems controlling a first motor for driving a gear machining tool and a second motor driving a workpiece, said controller comprising:

  • first position control means and second position control means provided in the servo systems for respectively controlling positions of the first motor and the second motors, 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 periods, comprising a period of a cycle of a load pattern repeatedly present in driving the first motor and the second motor to machine the workpiece, and amending the position command at a present processing period based on the amendment amount at the processing period preceding by one cycle period.

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