Rotary tool with axial feed
US4299294A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 11, 1980 |
| Grant date | Nov 10, 1981 |
| Priority date | — |
| Expiry date | Feb 11, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T408/6757
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The tool includes an elongated body, rectangular in cross-section and having a switch housing mounted on one side face, to enable the mounting of an array of such tools in close side-by-side relation. A hydraulic motor, rotary drive spindle, and extensible quill are mounted relative to the housing about a common rotary and extension axis. The drive spindle has an external spline at its rear end, for engagement with an internally splined drive coupling which is secured to the motor drive shaft by means of a special key arrangement to prevent axial movement of the drive coupling. The quill is extended by a fluid operated cylinder-piston structure; and the front end of the drive shaft is supported within the front end of the quill by means of a uniquely mounted bearing. The bearing is mounted at the squared front end of the quill for precise axial and squared alignment; and is also confined between the spindle drive shaft and spindle end for precise axial and squared alignment relative to the spindle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.