Apparatus for machining a workpiece to non-revolute symmetric and aspherical surface
US5711696A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 27, 1995 |
| Grant date | Jan 27, 1998 |
| Priority date | — |
| Expiry date | Apr 27, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/50063
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An apparatus for machining a workpiece which has a non-revolute symmetrical and aspherical surface with a rotating grinding wheel. The apparatus comprises a workpiece supporting member supporting the workpiece and a wheel head providing the grinding wheel an outer peripheral surface of which takes a form of a part of a spherical shape. The workpiece and the grinding wheel are relatively moved by a first drive mechanism in an infeed direction, the workpiece supporting member and the wheel head are relatively moved by a second drive mechanism in a traverse feed direction perpendicular to the infeed direction, and the workpiece supporting member and the wheel head are relatively moved by a third drive mechanism in a pitch feed direction perpendicular to both of the infeed direction and the traverse feed direction. A truing device is moved by the second drive mechanism in the traverse feed direction relative to the grinding wheel, and has a truing element rotatable about an axis perpendicular to a rotational axis of the grinding wheel through a spherical center thereof. The first, second and third drive mechanisms are controlled by a control device based upon the aspherical shape data …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.