Grinding abnormality monitoring method and grinding abnormality monitoring device
US9212961B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2011 |
| Grant date | Dec 15, 2015 |
| Priority date | — |
| Expiry date | Jun 8, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L5/12
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A grinding abnormality monitoring method and device for grinding a plurality of works of the same type are proposed which can improve the accuracy of judgment whether an abnormality is generated or not by properly setting a threshold value. According to the method or the device, by setting at least one of upper and lower limit values of a trial grinding load detected at the trial grinding of at least one of the works, an occurrence of grinding abnormality is judged when an actual grinding load detected at the actual grinding of work exceeds at least one of the upper and lower limit values thereof which varies depending on the time elapsed from the start of the actual grinding or a position of work relative to a grinding wheel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.