Machine-tool-state determination system and machine-tool-state determination method
US10990085B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 20, 2019 |
| Grant date | Apr 27, 2021 |
| Priority date | — |
| Expiry date | Sep 25, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V2201/06
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A machine-tool-state determination system configured to determine a state associated with a machine tool including a rotation mechanism for processing a member, the system including: a sensor configured to acquire a state value from the machine tool; and an analysis device, in which the analysis device: performs spectral analysis with time series data of the state value, to extract a rotational frequency of the rotation mechanism and a harmonic wave to the rotational frequency; calculates a ratio of an amplitude of the rotational frequency to an amplitude of the harmonic wave; generates feature-amount data including the state value and the ratio as feature amounts; performs clustering with the feature-amount data; and determines a state associated with the machine tool, based on a result of the clustering.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.