Press shutheight adjustment using bolster hydraulic tie rod assemblies
US6772682B1 · kind B1 · utility
4Cited by
11References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 13, 2003 |
| Grant date | Aug 10, 2004 |
| Priority date | — |
| Expiry date | Feb 13, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB30B15/0041
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A shutheight adjustment system incorporating tie rods and accompanying hydraulic tie rod nut assemblies in connecting a bed to a bolster of a mechanical press for dynamically altering the tensioning of the tie rods. Each hydraulic tie rod nut assembly includes a cylinder with an inner sliding piston threadably engaging the tie rod. A pressurizing mechanism injects pressurized fluid within a chamber formed by the piston and cylinder. By increasing pressure within the chamber of the hydraulic tie rod nut assembly, compression between the press bed and press bolster may be increased, thereby increasing the press shutheight.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.