Apparatus and method for forming spherical end surface of coaxial composite member
US6120359A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 12, 1998 |
| Grant date | Sep 19, 2000 |
| Priority date | — |
| Expiry date | Nov 12, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB24B21/02
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The invention provides an apparatus and a method for forming the end surface of a coaxial composite member consisting of a cylindrical member and an axial member, in which the axial member is ground more readily than the cylindrical member, being capable of forming the end surface of the coaxial member into a convexed spherical mirror surface with high precision, without recession of the axial member from the formed spherical surface. The apparatus for forming the end surface of a coaxial composite member comprises a grinding table having a circularly recessed guide surface, a winding motor for running a grinding tape across the circularly recessed guide surface, a pressing member for pressing the coaxial composite member on the grinding tape to be then contacted with the circularly recessed guide surface, and a rotating motor for providing the coaxial composite member on the grinding tape with rotative movement on its axis and reciprocative movement in the direction orthogonal to the running direction of the grinding tape, wherein the recessed guide surface in provided with a recess or a member having lower hardness than that of the material for the recessed guide surface, on the …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.