THERMAL DISPLACEMENT CORRECTION DEVICE FOR WORKING MACHINE

摘要

Provided is a thermal displacement correction device for a working machine that includes a thermal displacement correction amount calculation unit for calculating a thermal displacement correction amount and configured to correct a thermal displacement amount caused by heat generated and radiated from the working machine and changing with time by the thermal displacement correction amount, the thermal displacement correction device for the working machine including: a correction error coefficient storage memory; a correction precision calculation unit configured to calculate the correction precision of the thermal displacement correction amount based on the thermal displacement correction amount and the correction error coefficient; and a correction precision degradation notification unit.

主权项

1. A thermal displacement correction device for a working machine that includes a thermal displacement correction amount calculation unit for calculating a thermal displacement correction amount and configured to correct a thermal displacement amount caused by heat generated and radiated from the working machine and changing with time by the thermal displacement correction amount, the thermal displacement correction device for the working machine comprising:
a correction error coefficient storage memory configured to store a correction error coefficient in response to the thermal displacement correction amount obtained in advance; a correction precision calculation unit configured to calculate the correction precision of the thermal displacement correction amount based on the thermal displacement correction amount calculated by the thermal displacement correction amount calculation unit and the correction error coefficient stored in the correction error coefficient storage memory; a correction precision check unit configured to check whether a processing operation is performed at predetermined correction precision by comparing the correction precision with a threshold value of predetermined correction precision; and a correction precision degradation notification unit configured to notify degradation in correction precision when the correction precision check unit determines that the predetermined correction precision is not satisfied.