Method and apparatus for reducing cutting impact in a precision blanking press
US10500628B2 · kind B2 · utility
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2References
3Claims
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Key dates
| Filing date | Jul 6, 2016 |
| Grant date | Dec 10, 2019 |
| Priority date | — |
| Expiry date | Mar 26, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB30B15/22
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
In a method and an apparatus for reducing the cutting impact in a hydraulically-driven precision blanking press, the force necessary to reduce the cutting impact as a counterforce is generated directly in the pressure chamber of the drive piston such that the counterforce acts directly on the cutting punch and so that the design of the press can be simplified, costs can be reduced, no additional external hydraulic-mechanical means for reducing the cutting impact are needed, and so that the loads on the press and the die can be reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.