Head replacement-type cutting tool
US9827620B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 17, 2011 |
| Grant date | Nov 28, 2017 |
| Priority date | — |
| Expiry date | Apr 19, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T407/1914
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A head replacement-type cutting tool having a holder provided at the attachment hole with the fitting part formed in a tapered shape, and the leading end face is perpendicular to the central axis. The attachment part formed in a tapered shape protrudes on the cutting head from the rear end face perpendicular to the central axis of the cutting part. The cutting head is attached to the holder in such a manner that the attachment part is fitted into the fitting part by screwing the female thread part with the male thread part and the leading end face is in contact with the rear end face. The inner diameter to outer diameter ratio d/D1 which is a ratio of the inner diameter d of the fitting part before being fitted in relation to the outer diameter D1 of the leading end part of the holder is from 0.5 to 0.8.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.