Workpiece positioning table
US4013280A · kind A · utility
Inventors
Key dates
| Filing date | Aug 9, 1976 |
| Grant date | Mar 22, 1977 |
| Priority date | — |
| Expiry date | Aug 9, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S248/913
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A workpiece positioning table includes a generally channel-shaped base member having a bottom web element and a pair of laterally spaced side wall elements projecting upwardly therefrom. At least one of the side wall elements is pre-tensioned so as to possess a spring force tending to deflect such side wall element inwardly towards the other of the side wall elements. A V-shaped notch is formed in the inner face of each side wall at a location above the bottom web element and in vertical alignment with each other. Each such notch extends lengthwise of the side wall, desirably to be coextensive therewith, and is heat-treated to a hardness greater than that of the adjacent surfaces of the side wall. The positioning table includes a carriage member carried by the base for reciprocatory movement between the side walls thereof. A V-shaped notch is formed in each of the opposed outer edges of the carriage side walls, such notches extending lengthwise of the carriage member and being located in vertically aligned relation with each other. The V-notches in the carriage are also heat-treated to a hardness greater than that of the adjacent surfaces of the carriage side walls. Sets of cross-m…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.