Spindle for a machine tool, comprising a bearing element with a capillary feed line for supplying lubricants
US7600921B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 16, 2005 |
| Grant date | Oct 13, 2009 |
| Priority date | — |
| Expiry date | Feb 14, 2026 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2322/39
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A spindle for a machine-tool, especially an engine spindle, includes a housing for receiving an electric engine, a shaft received in bearing elements and driven by the electric engine, and especially a tool receiving element for a tool for machining workpieces, at least one bearing element including a capillary feeding line for supplying lubricant via a pump element. A bearing element for one such spindle includes at least one recess for receiving a capillary feeding line for supplying lubricant via a pump element. A method for operating one such spindle for a machine-tool carries out a temporal and/or quantitative dosing of lubricant according to the evaluation of a sensor element, in order to sufficiently lubricate at least one bearing element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.