Punch assemblies and methods for modifying

B - Operations – Transporting – 21 – D

Patent

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Details

B21D 28/34 (2006.01)

Patent

CA 2742465

A retain-and-release member, which is coupled to a punch holder of a punch assembly, engages a punch tip against an end of the holder, such that a working portion of the tip extends from the end. A punch guide sidewall of the assembly includes an aperture aligned with an actuation interface of the retain- and-release member, when the punch holder and the engaged punch tip are slidably engaged within a guide bore formed by the punch guide sidewall. The aperture provides access for applying a force, to the actuation interface, in order to disengage the retain-and-release member from the punch tip, while the punch holder remains within the guide bore of the assembly. Following the removal, the same punch tip, or another, may be inserted into the guide bore and into engagement with the retain-and-release member.

Selon linvention, un élément de retenue et de libération, qui est accouplé à un support de perforateur dun ensemble perforateur, entre en prise avec une pointe de perforateur contre une extrémité du support, de telle façon quune partie active de la pointe sétende à partir de lextrémité. Une paroi latérale de guidage du perforateur de lensemble comprend une ouverture alignée sur une interface dactionnement de lélément de retenue et de libération, lorsque le support de perforateur et la pointe de perforateur en prise sont en prise coulissante dans un trou de guidage formé par la paroi latérale de guidage du perforateur. Louverture assure un accès destiné à lapplication dune force sur linterface dactionnement dans le but de libérer lélément de retenue et de libération de la pointe du perforateur, pendant que le support de perforation reste dans le trou de guidage de lensemble. A la suite du retrait, la même pointe du perforateur (ou une autre) peut être insérée dans le trou de guidage et en prise avec lélément de retenue et de libération.

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