Title:
The machine tool provided with the rotating table
Document Type and Number:
Japanese Patent JP6154358
Kind Code:
B2
Abstract:
A machine tool includes a rotary table to which a workpiece is mounted, a brake, a displays, a memory configured to store a table in which values of a first coefficient correspond to different sizes of a disturbance torque, and values of a second coefficient correspond to different sizes of inertia of the workpiece. The controller is configured to calculate a size of the disturbance torque, find a first coefficient corresponding to the calculated size of the disturbance torque and the table, find a second coefficient corresponding to the size of the inertia of the workpiece and the table, accumulate the found values of the first and second coefficients, and cause the display to generate an indicator of necessity of a replacement of the brake in response to that the accumulated values of the first and second coefficients reaches a predetermined value.
Inventors:
Masuya Road
Application Number:
JP2014143437A
Publication Date:
June 28, 2017
Filing Date:
July 11, 2014
Export Citation:
Assignee:
FANUC Corporation
International Classes:
B23Q17/00; B23Q15/00; B23Q16/10; B23Q17/09; F16D66/02
Domestic Patent References:
| JP2014048774A | ||||
| JP2014030864A | ||||
| JP9071239A |
Attorney, Agent or Firm:
Aiwa Patent Business Corporation
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