Tool holder with stress fit rods
US11691230B1 · kind B1 · utility
0Cited by
7References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 2, 2022 |
| Grant date | Jul 4, 2023 |
| Priority date | — |
| Expiry date | Sep 2, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T279/17965
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A tool holding section opposite the first section with a bore formed in the tool holding section adapted for receiving the shank of the tool. A plurality of stress rods positioned around the bore and comprising a thermal rate of expansion less than a thermal rate of expansion of the tool holding section. The plurality of stress rods form corresponding bulges on the surface of the bore to decrease the inner diameter of the bore to mechanically lock the shank of the tool in the bore.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.