Vertical milling and turning machines
US4480366A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 1982 |
| Grant date | Nov 6, 1984 |
| Priority date | — |
| Expiry date | Dec 17, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T409/309464
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A vertical milling and turning machine generally comprises a spindle assembly connected to a drive motor. The spindle assembly comprises a hollow ram provided with a tapered opening at the front end thereof for attaching a turning tool and a hollow spindle provided with a tapered opening coaxial with the former opening at the front end of the spindle and the tapered opening of the spindle has a diameter smaller than that of the later opening. An air supply passage is formed in the ram so as to have an end opening opened towards the tapered opening of the ram and a detecting switch for detecting a pressure in the passage is connected to the air supply passage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.