Method of superfinishing a gothic-arch groove
US5170590A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 7, 1990 |
| Grant date | Dec 15, 1992 |
| Priority date | — |
| Expiry date | Nov 7, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T409/300112
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
In superfinishing a Gothic-arch-shaped groove of a nut by using a superfinishing stone attached to the tip end of an oscillation arm while oscillating the superfinishing stone about the oscillation axis and, at the same time, moving the superfinishing stone in the longitudinal direction of the Gothic-arch groove, the oscillation axis is inclined by a predetermined angle with respect to the longitudinal direction of the Gothic-arch groove. The shape of the cross section of the Gothic-arch groove orthogonal to the oscillation axis is regarded as a single circular arc and, thus, both flanks of the Gothic-arch groove can be superfinished simultaneously.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.