Chuck having a rotatable securing mechanism

Details Chuck having a rotatable securing mechanism Chuck having a rotatable securing mechanism

B - Operations, Transporting

23

B

B23B 31/107 (2006.01)

Patent

CA 2634170

A chuck for clamping an article has a receiving portion including a receiving bore having a longitudinal axis L, and a receiving bore inner surface. A clamping sleeve is accommodated in the receiving bore and is rotatable between a releasing position and a securing position. The clamping sleeve has a radially outwardly facing contoured clamping surface provided with one on more clamping segments, each clamping segment having a ramp between a trough and a crest, and a depression on the other side of the crest. Rotating the clamping sleeve within the receiving bore causes one or more rollers associated with each clamping segment to cooperate with the contoured clamping surface to effect the releasing and the securing of the article.

L'invention concerne un dispositif de serrage permettant de serrer un article, ledit dispositif de serrage ayant une partie de réception comprenant un alésage de réception ayant un axe longitudinal L, et une surface intérieure d'alésage de réception. Un manchon de serrage est ménagé dans l'alésage de réception et tourne entre une position de libération et une position de fixation. Le manchon de serrage a une surface de serrage profilée faisant face vers l'extérieur de manière radiale munie d'un ou de plusieurs segments de serrage, chaque segment de serrage ayant une rampe entre un creux et une crête, et une dépression de l'autre côté de la crête. La rotation du manchon de serrage à l'intérieur de l'alésage de réception entraîne un ou plusieurs roulements associés à chaque segment de serrage à coopérer avec la surface de serrage profilée pour effectuer la libération et la fixation de l'article.

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