Forming machine and method for deforming a hollow workpiece

Details Forming machine and method for deforming a hollow workpiece Forming machine and method for deforming a hollow workpiece

B - Operations, Transporting

21

D

B21D 22/14 (2006.01)

Patent

CA 2415804

The invention relates to a forming machine (1) at least provided with a clamping device (4) for clamping a hollow workpiece (5) having at least one open end and a first forming tool (10) which can be placed into contact with the outer surface of the workpiece (5) and with which the workpiece (5) can be deformed. The clamping device (4) can be rotated about a first axis (13) and moved with respect to this first axis (13). Thus, the forming machine (1) can be of relatively straightforward design and operate at high rotational speeds, even when a tool head equipped with a relatively large number of rollers is being used. The invention further pertains to a method wherein the clamping device (4) can be moved with respect to the said first axis (13).

L'invention concerne une machine de formation (1) comprenant au moins un dispositif de serrage (4) d'une pièce creuse (5) à déformer, dotée au moins d'une extrémité ouverte, un premier outil de formation (10) qui peut être placé en contact avec la surface extérieure de la pièce (5) et au moyen duquel cette pièce (5) peut être déformée. Le dispositif de serrage (4) peut tourner autour du premier axe (13) et être déplacé par rapport à ce premier axe (13). Cette possibilité a pour résultat une construction relativement simple de la machine de formation, qui, en outre, peut fonctionner à des vitesses de rotation élevées, même si on utilise une tête de formation comprenant un nombre relativement important de galets. L'invention concerne aussi un procédé dans lequel le dispositif de serrage (4) est déplacé par rapport au premier axe (13).

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