Device for axial delivery of cryogenic fluids through a machine spindle
US8303220B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 22, 2009 |
| Grant date | Nov 6, 2012 |
| Priority date | — |
| Expiry date | Apr 6, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T409/304032
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Cryogenic fluids are delivered along an axial path through a machine tool spindle to a cutting tool that is mounted in a standard tool holder. An external source of cryogen is delivered via an insulated line to a junction block housing where the cryogen flows into a vacuum insulated coolant delivery tube mounted on the axis of rotation of the spindle. The coolant delivery tube couples with a cryogenic manifold located in a standard tool holder in the end of the spindle. The cryogenic manifold couples the cryogen to a tool that is mounted in the tool holder. Before a tool change operation, the coolant delivery tube is raised to disconnect it from the cryogenic manifold, and to turn off the flow of cryogen to the delivery tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.