Title:
工作機械
Document Type and Number:
Japanese Patent JP6726579
Kind Code:
B2
Abstract:
In a machine tool, when machining is in a steady zone, a rotation phase of a main spindle at the time of measurement in the N-th sampling is calculated, and the calculated rotation phase and the measurement value are recorded in a recording section so as to be associated with each other. The measurement and calculation of the rotation phase of the main spindle at the time of each measurement are continued for plural times of rotations of the main spindle, and thus the measurement values are obtained at various rotation phases, whereby change in drive force during one rotation of the main spindle is finally calculated.
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Inventors:
Takaaki Tanaka
Application Number:
JP2016179834A
Publication Date:
July 22, 2020
Filing Date:
September 14, 2016
Export Citation:
Assignee:
Okuma Corporation
International Classes:
B23Q17/00; B23Q15/12; B23Q17/09; B23Q17/12; G05B19/18
Domestic Patent References:
| JP8050492A | ||||
| JP10301578A | ||||
| JP7219560A | ||||
| JP6004797U | ||||
| JP1235863A | ||||
| JP2005074545A | ||||
| JP2160454A | ||||
| JP2007105809A | ||||
| JP2010089227A |
Foreign References:
| WO2011137891A1 |
Attorney, Agent or Firm:
Yoshiki Ishida
Kyoichi Ueda
Kyoichi Ueda