Machine tool health monitoring method
US11119001B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 5, 2020 |
| Grant date | Sep 14, 2021 |
| Priority date | — |
| Expiry date | Mar 5, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M13/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A machine tool health monitoring method which is to use a predetermined plurality of vibration sensors on a plurality of components of a machine tool and to drive motors of the machine tool to excite the machine tool using an electronic device while the health status of the machine tool is good, and then to perform a diagnostic process to obtain a characteristic cluster consisting of a plurality of modals, and then to define the characteristic cluster as a sample health characteristic cluster. The diagnostic process includes the procedures of vibration transmissibility obtaining, singular value decomposition, curve fitting and modal establishing. In addition, excite the machine tool and proceed the diagnosis process to obtain a current health characteristic cluster. Finally, the current health characteristic cluster is compared with the sample health characteristic cluster to judge whether the machine tool is healthy or not.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.