Method of dressing grindstone for NC grinder
US5618221A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 23, 1995 |
| Grant date | Apr 8, 1997 |
| Priority date | — |
| Expiry date | Jan 23, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB24B53/00
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A dressing method comprises the steps of rotating a rotary dresser at a high speed for dressing a surface of the grindstone, previous to contact of the rotary dresser with the surface of the grindstone, and detecting a rotational vibration caused by a bearing adapted to support the rotary dresser in rotation, by use of a vibration sensor for detecting a contact vibration having a specific frequency band generated when the rotary dresser in rotation comes into contact with the grindstone. Providing that the rotational vibration has been detected, an output signal from the vibration sensor is judged to be active, allowing the grindstone to be dressed. Prior to the execution of the dressing, failures in the vibration sensor and other deficiencies are detected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.