B - Operations – Transporting – 21 – D
Patent
B - Operations, Transporting
21
D
B21D 22/14 (2006.01) B21D 41/04 (2006.01)
Patent
CA 2474019
The invention relates to a method and a forming machine suitable for manufacturing a product having various diameters from a workpiece (1), such as a metal cylinder or plate, in which the workpiece is clamped down in a clamping device (10, 34), the workpiece and a first tool (3A) are rotated about an axis of rotation (2) relative to each other, the workpiece is deformed by means of said first tool by placing the tool into contact with the workpiece and moving the workpiece and/or the tool in a direction along the axis of rotation. At least a second tool (3B) is placed into contact with the workpiece at a position behind the first tool, seen in the working direction, and the workpiece is also deformed by means of said second tool. Thus, parts of the workpiece that have been deformed by the first tool are deformed by one or more subsequent tools practically immediately.
Cette invention a trait à un procédé ainsi qu'à la machine de formage correspondante se prêtant bien à la fabrication d'articles de différents diamètres à partir d'une pièce à usiner (1), notamment d'un cylindre ou d'une tôle métallique Cette pièce à usiner, qui est prise dans un mécanisme de préhension (10, 34), tourne en même temps qu'un premier outil (3A) autour d'un axe de rotation (2), relativement l'un à l'autre. Ce premier outil sert à déformer la pièce à usiner lorsqu'il vient à son contact. On déplace la pièce et/ou l'outil le long de cet axe de rotation. Un second outil (3B) au moins, qui vient au contact de la pièce, en arrière du premier dans le sens de l'usinage, déforme également la pièce. De la sorte, les parties de la pièce ayant été déformées par le premier outil sont déformées, quasiment immédiatement, par un ou plusieurs autres outils.
Massee Johan
Sim & Mcburney
LandOfFree
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