Clamping tool holder
US12138693B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 17, 2021 |
| Grant date | Nov 12, 2024 |
| Priority date | — |
| Expiry date | Dec 14, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23B2260/03
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A clamping tool holder includes a tool holder body and a clamp for clamping a cutting insert. The clamp causes the cutting insert to press against the bottom and the side walls of an insert-receiving pocket of the tool holder body. The tool holder body has an inclined surface sloping inward in a direction away from the insert-receiving pocket. The clamp has an inclined surface that acts as a ramp with the inclined surface of the tool holder body. When a clamp screw is tightened, a nub of the clamp engages an inside rearward surface of a mounting bore of the insert with face contact and a contact pad engages a top surface of the cutting insert. As a result, the clamp exerts a force downward and rearward force on the insert. In one aspect, the nub has a polygonal cross-sectional shape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.