Device for punching work pieces in an internal high-pressure...

Details Device for punching work pieces in an internal high-pressure... Device for punching work pieces in an internal high-pressure...

2005-10-18

2005-10-18

Jones, David (Department: 3725)

Metal deforming

By application of fluent medium, or energy field

With cutting

C072S056000, C072S057000, C072S063000, C083S054000, C029S421100

Reexamination Certificate

active

06955070

ABSTRACT:
A device for punching work pieces in an internal high-pressure forming tool includes a punching die guided displaceably in a bore of the forming tool. The device also contains a drive with which the punching die is moved back and forth between the in-use position and the non-use position. In order to facilitate, in a simple and space-saving manner, the punching of work pieces in the internal high-pressure forming tool, the drive contains a pressure fluid and a pressure transfer device that can be elastically expanded via the pressure fluid between a base firmly attached to the tool and a punch head of the punching die. The pressure transfer device abuts a partition at least indirectly at the punch head.

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