Monitoring device and monitoring method
AssigneeFanuc Corporation
InventorTakahiro Endou
Life of this patent
Estimating the term…
Abstract
Provided is a monitoring device and a monitoring method that can capture the condition of a coolant in detail. A monitoring device according to one embodiment includes: a first detection unit that detects a first physical quantity; a second detection unit that detects a second physical quantity; a ratio calculation unit that calculates the ratio between a first value obtained when the first physical quantity is expressed using a specified unit, and a second value obtained when the second physical quantity is expressed using a specified unit; and an inferring unit that, if the calculated ratio is above an upper limit value of a management range or below a lower limit value of the management range, infers that one among an oil and an electrolyte contained in the coolant is abnormal.
Claims10
A monitoring device that monitors a coolant used in a machine tool, the monitoring device comprising:
- a first detection unit configured to detect a first physical quantity;
- a second detection unit configured to detect a second physical quantity different from the first physical quantity;
- a ratio calculation unit configured to calculate a ratio between a first value representing the first physical quantity in a predetermined unit, and a second value representing the second physical quantity in the predetermined unit;
- and
- an inferring unit configured to infer that one of an oil or an electrolyte contained in the coolant is abnormal when the ratio calculated by the ratio calculation unit exceeds an upper limit value of a control range and when the ratio calculated by the ratio calculation unit falls below a lower limit value of the control range, the control range being determined for the ratio in advance.
A monitoring method for monitoring a coolant used in a machine tool, the monitoring method comprising:
- a first detection step of detecting a first physical quantity;
- a second detection step of detecting a second physical quantity different from the first physical quantity;
- a ratio calculation step of calculating a ratio between a first value representing the first physical quantity in a predetermined unit, and a second value representing the second physical quantity in the predetermined unit;
- and
- an inferring step of inferring that one of an oil or an electrolyte contained in the coolant is abnormal when the ratio calculated in the ratio calculation step exceeds an upper limit value of a control range and when the ratio calculated in the ratio calculation step falls below a lower limit value of the control range, the control range being determined for the ratio in advance.
Dependencies are inferred from the claim text.