Working unit
US9061389B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 7, 2011 |
| Grant date | Jun 23, 2015 |
| Priority date | — |
| Expiry date | Feb 13, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T409/304032
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
To provide a working unit ejecting mist of the excellent quality. A working unit includes a body, a ram, a forward and backward moving mechanism moving the ram forward and backward, a tool, a holding section holding the tool and moving forward and backward integrally with the ram, a spindle motor rotating the holding section, and a mist supply portion supplying mist mixed with air and cutting oil to the tool and works a workpiece while supplying the mist. The tool has through-holes supplying the mist to a cutting blade portion. The holding section includes a collet holding the tool and a collet holder having an inner cylindrical portion into which the collet is inserted with a communication hole to which the mist supplied from the mist supply portion 10 is introduced being formed from the inner cylindrical portion to an outer peripheral portion. A flow path guide plug having a mist supply path formed from an inner opening end of the communication hole toward the through-holes of the tool is internally fitted to the inner cylindrical portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.