Rivet removal tool and method

B - Operations – Transporting – 23 – P

Patent

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Details

B23P 19/02 (2006.01) B21J 15/02 (2006.01) B21J 15/50 (2006.01) B23B 47/28 (2006.01) B23B 49/00 (2006.01) B25B 27/14 (2006.01)

Patent

CA 2466625

A device and method of removing a rivet which has been installed on a work piece. The method includes clamping a hand held device having springs onto the work piece, engaging a drill with a drill bit of the hand held device, the springs applying a pre-load force to the drill bit, operating the drill, thereby causing the springs to apply an increased load force to the drill bit and causing the drill bit to drill into a button of the rivet, unclamping and removing the hand held device from the work piece, and using a compression tool to remove the rivet from the work piece. The compression tool includes a push out portion configured to push out the rivet, and a recess is disposed generally opposite the push out portion for catching the rivet as the rivet is pushed out.

L'invention concerne un dispositif et un procédé permettant de retirer un rivet qui a été placé sur une pièce à travailler. Ce procédé consiste à monter un dispositif à main possédant des ressorts sur la pièce à travailler, à mettre en prise un outil de perçage avec un foret du dispositif à main, les ressorts appliquant une force de précharge sur le foret, à faire fonctionner l'outil de perçage, provoquant ainsi l'application par les ressorts d'une force de charge accrue sur le foret et provoquant le perçage par le foret d'un bouton du rivet, à démonter et à retirer le dispositif à main de la pièce à travailler, et à utiliser un outil de compression pour éliminer le rivet de la pièce à travailler. Cet outil de compression comprend une partie de poussée conçue pour pousser vers l'extérieur le rivet, et un retrait est situé généralement à l'opposé de cette partie de poussée pour attraper le rivet alors que ce dernier est poussé vers l'extérieur.

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