Precision quill-feed unit
US5888033A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 9, 1997 |
| Grant date | Mar 30, 1999 |
| Priority date | — |
| Expiry date | Oct 9, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T408/65
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A self-contained precision quill-feed unit is provided with a positive stop arrangement to control depth of tool feed. The stop position is adjustable from the exterior of the unit and the stop abutments associated with moving and stationary members are positioned in such manner that no yawing forces are imposed on the quill, drive shaft and spindle of the unit. Additionally, yawing forces generated by the mechanical resistance of a known type of hydraulic constant velocity control (CVC) cylinder are opposed by reaction forces associated with the anti-rotation linkage that prevents rotation of the quill. Together these features provide overall a machine in which quill, drive shaft and spindle deflection or yawing is minimized or prevented.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.