Press-forming machine
US7152444B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 23, 2004 |
| Grant date | Dec 26, 2006 |
| Priority date | — |
| Expiry date | Mar 23, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB30B1/18
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A press forming machine comprising driving shafts for pressing three or more respective pressure points and displacement measuring means for measuring a displacement close to the pressure point. A central driving shaft among the driving shafts has a gap (the slack) larger than those of other driving shafts between each of the driving shafts and a pressure plate. During press formation at a trial stage, a positional displacement close to each pressure point is measured by the displacement measuring means and control data is supplied to each driving source for driving a driving shaft to drive the pressure plate. Then, production press-formation is performed in accordance with the above result. Therefore, the central driving source can avoid overload by the slack of the driving shaft with the pressure plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.