Coolant State Estimation with Learned Models During Machine Downtime
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Solution Overview
Problem
Existing coolant management systems fail to accurately measure the state of coolant when agitation is insufficient, such as during machine downtime, leading to inadequate management of coolant conditions.
Innovation Solution
A coolant state estimation system that utilizes a learned model to estimate the temporal change of coolant state based on measurement information and processing information, enabling accurate management even when continuous measurement is not possible.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If continuous measurement of coolant state is implemented using sensors, then the state of coolant can be monitored, but the measurement accuracy deteriorates when the coolant is not sufficiently agitated
Solution Approach 1:
The patent introduces an agitation device as an intermediary element between the coolant and the measurement sensors. This agitation device actively mixes the coolant to ensure uniform distribution of measurement parameters throughout the coolant volume, thereby maintaining measurement accuracy even when the coolant would otherwise be stagnant during machine downtime or low-flow conditions
Solution Approach 2:
The system performs preliminary agitation of the coolant before measurement is taken. By ensuring the coolant is adequately mixed prior to the measurement process, the system prevents measurement errors that would occur in stagnant conditions, thus maintaining reliable measurements during periods when the processing machine is stopped or operating at low capacity
2Measurement precision
If the processing machine is stopped to agitate the coolant for accurate measurement, then measurement accuracy improves, but productivity deteriorates
Solution Approach 1:
The agitation device operates continuously or periodically to maintain coolant uniformity without requiring the processing machine to stop. This continuous action ensures that accurate measurements can be taken at any time without interrupting the machining operations, thereby maintaining both measurement precision and productivity simultaneously
3Productivity
If coolant state is not properly managed during low agitation periods, then the system operates continuously without interruption, but the quality of processing deteriorates due to inaccurate coolant state
Solution Approach 1:
The system uses measurement sensors to continuously monitor coolant state parameters and provides feedback to the agitation device control system. Based on this feedback, the agitation device adjusts its operation to maintain coolant uniformity, ensuring that accurate measurements are available to support continuous processing operations without compromising manufacturing precision
Data Source
AI summary
A coolant state estimation system that estimates a temporal change of a state of a coolant used in a processing machine includes a coolant state acquisition unit that acquires a measurement value regarding the state of the coolant as measurement information in which the measurement value is associated with measurement time of the measurement value, a processing information acquisition unit that acquires processing information on a processing condition of the processing machine, and an estimation unit that estimates a temporal change of the measurement value after the measurement time of the measurement information using a learned model based on the measurement information and the processing information. The learned model is a model that has learned the temporal change of the measurement value using teacher data created from the measurement information and the processing information.