Title:
A numerical control unit which avoids overheat of a spindle
Document Type and Number:
Japanese Patent JP6151732
Kind Code:
B2
Abstract:
A numerical controller estimates a machining continuable time before a currently controlled motor overheats if an output of the motor exceeds a continuous rated output and predicts respective execution times of command blocks and the machining continuable time for each command block, for a currently running block and its subsequent command blocks. Based on these predicted data, the numerical controller identifies a command block (alarm generation block) in which the motor overheats and a command block (stop block) in which driving control can be safely stopped, within the range of command blocks from the currently running command block to the alarm generation block.
Inventors:
Takumi Ohashi
Application Number:
JP2015040134A
Publication Date:
June 21, 2017
Filing Date:
March 02, 2015
Export Citation:
Assignee:
FANUC Corporation
International Classes:
G05B19/18; B23Q17/00; G05B19/4063
Domestic Patent References:
| JP2014156005A | ||||
| JP2000271836A | ||||
| JP2010102416A | ||||
| JP2009181174A |
Attorney, Agent or Firm:
Aiwa Patent Business Corporation
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