B - Operations – Transporting – 23 – B
Patent
B - Operations, Transporting
23
B
B23B 49/02 (2006.01) B21J 15/02 (2006.01)
Patent
CA 2678139
The invention relates to a method for assembling two assemblies, e.g. aircraft fuselage assemblies, using a plurality of fixation members. The method comprises drilling openings in an overlap area using a drilling tool and through a corresponding centring opening (36) formed in a drilling grid (34) rigidly mounted on said overlap area, wherein the drilling tool includes a bearing mandrel as well as an expansible ring (56) in tight contact with the mandrel along a conical contact surface. According to the invention, a relative movement is applied between the expansible ring and the mandrel in order to create, after locking the ring in the centring opening, a displacement of the mandrel, bearing against the overlap area, through the centring opening and in the direction of the overlap area in order to apply a pressure thereon.
L' invention concerne un procédé d'assemblage de deux ensembles, par exemple des ensembles de fuselage d'aéronef, par l'intermédiaire d'une pluralité d'organes de fixation. Il comprend le perçage d'orifices à travers une zone de recouvrement, réalisé à l'aide d'un outil de perçage traversant un orifice de centrage (36) correspondant pratiqué sur une grille de perçage (34) montée fixement sur cette zone de recouvrement, l'outil de perçage comprenant un mandrin d'appui ainsi qu'une bague expansible (56) épousant le mandrin selon une surface de contact conique. Selon l'invention, il est appliqué un mouvement relatif entre la bague expansible et le mandrin de manière à engendrer, suite au blocage de la bague dans l'orifice de centrage, un déplacement du mandrin en appui contre la zone de recouvrement, à travers l'orifice de centrage et en direction de cette zone de recouvrement afin d'exercer une pression sur celle-ci.
Cohen Bacri Gerard
Houis Jean-Luc
Airbus Operations
Goudreau Gage Dubuc
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