Title:
Feed shaft position control device in machine tools
Document Type and Number:
Japanese Patent JP6366563
Kind Code:
B2
Abstract:
A position controller includes a position detector, a speed command operator, a first adder, a torque command operator, a second adder, a drive unit, a runout amount correcting device, and a third adder. The runout amount correcting device is configured to employ a value related to deviation between a command value and a detection value in physical quantity of a movable part as a reference signal. The runout amount correcting device is configured to calculate a position correction amount from rotation angle information of the main spindle and the reference signal. The runout amount correcting device is configured to estimate a runout amount of a cutting edge of the tool from the reference signal. The runout amount correcting device is configured to calculate the position correction amount such that influences of the respective cutting edges appearing in the reference signal are leveled.
Inventors:
Tadashi Miyaji
Application Number:
JP2015226973A
Publication Date:
August 01, 2018
Filing Date:
November 19, 2015
Export Citation:
Assignee:
Okuma Corporation
International Classes:
G05B19/19; G05B19/404; G05D3/12
Domestic Patent References:
| JP2013240837A | ||||
| JP2005182427A | ||||
| JP2008211905A | ||||
| JP2008210179A |
Attorney, Agent or Firm:
Yoshiki Ishida
Kyoichi Ueda
Kyoichi Ueda
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