Device for a tool spindle
US6413028B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 20, 2001 |
| Grant date | Jul 2, 2002 |
| Priority date | — |
| Expiry date | Sep 20, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T409/309464
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Tool spindle with a moveable pulling rod (3) axially displaceable in the spindle axle (1) for firmly attaching a toot at the axle of the spindle. The end (10) of the pulling rod (3) that is opposite to the tool extends into a unit (4) that accommodates the end of the pulling rod and that is stationary in relation to the rotating pulling rod, in which there is a spool (9) surrounding the pulling rod (3) for sensing the axial position of this in the spindle axle (1), the pulling rod is provided with an axial, central hole (6) for leading a coolant agent under pressure to the bit of the tool, whereby the coolant is supplied to the bore (6) of the pulling rod (3) via the stationary unit, that the pulling rod (3) is provided with a piston (11) accommodated in a cylinder chamber (13).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.