Centrifugal collet for high speed operation
US9050661B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 13, 2014 |
| Grant date | Jun 9, 2015 |
| Priority date | — |
| Expiry date | Jun 13, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T279/247
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A collet formed as a unitary metal or steel cylinder machined so as to allow three identical weights, joined by three identical flexures to reside, equally spaced about the axis of rotation of the collet. The weight's outer surface is defined by a single length radius having a pair of centers including the collet's axis of rotation. As the spindle revolves, kinetic energy built up in the weights forces the leading edge of the weights outward from the axis of rotation until some portion of the outer face of the weights frictionally engage the inner surface of the spindle shaft. The trailing edge of the mass of the weights deflects inward thus gripping the machine bit tighter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.