Universal machine for bending pipes or section bars to both...

Details Universal machine for bending pipes or section bars to both... Universal machine for bending pipes or section bars to both...

B - Operations, Transporting

21

D

B21D 7/00 (2006.01) B21D 7/024 (2006.01) B21D 7/08 (2006.01) B21D 7/12 (2006.01) B21D 9/00 (2006.01)

Patent

CA 2245353

Machine for bending pipes or section bars comprising a work table on which two or more powered spindle noses appear, at least one of which is powered to rotate in a direction and at least another is idle or driven to rotate in the opposite direction to the former one; said spindle noses being accessible for mounting/demounting on/from them spindles designed to support respective bender rollers or matrices defining a work area on the work table in order to bend a pipe or a section bar according to fixed or variable radiuses; support means for a counteracting member designed to co-operate with said bender rollers or matrices in a bending operation according to fixed or variable radiuses; said support means being firmly locatable on straight guide means in said work table along an approachment/removal direction of said counteracting member to/from said work area.

L'invention a trait à une machine à cintrer des tubes ou des barres, comportant une table sur laquelle se trouvent deux ou plusieurs nez de broche entraînés électriquement, dont au moins l'un d'entre eux est entraîné à tourner dans un sens et au moins un tourne librement ou est entraîné à tourner dans le sens contraire du premier; ces nez de broche étant conçus de manière à ce que l'on puisse y monter/démonter les broches destinées à porter les cylindres de cintrage ou les matrices qui définissent la zone de travail où s'effectuera le cintrage d'un tube ou d'une barre suivant des rayons de courbure fixes ou variables; appui pour un élément exerçant une action contraire, lequel est destiné à participer, avec ces cylindres ou ces matrices, au cintrage suivant des rayons de courbure fixes ou variables; cet appui est localisable sur un dispositif de guidage installé sur la table et permet d'approcher ou d'éloigner de la zone de travail l'élément en question.

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