Positioning mechanism of turret index
US5657523A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 2, 1995 |
| Grant date | Aug 19, 1997 |
| Priority date | — |
| Expiry date | Nov 2, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/2107
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A positioning mechanism of a turret index which performs index rotation by the use of an index mechanism to transmit output shaft motion and perform positioning by a three-piece toothed coupler. The present invention uses a hydraulic system to control the division and the combination of the three-piece toothed coupling to attain the turret's precise positioning and comprises a piston ring on the output shaft. The area of the piston ring's end plane which is subjected to hydraulic pressure, is greater than the area of the slider's end plane inside the three-piece toothed coupler and its end plane is also subjected to hydraulic pressure. At the same time the three-piece toothed coupler is in meshing, the output shaft can obtain an inward pulling force to prevent the output shaft from propping up only a very small distance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.