System for coupling machine tools

B - Operations – Transporting – 23 – B

Patent

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Details

B23B 31/02 (2006.01) B23B 29/04 (2006.01) B23B 31/107 (2006.01) B23B 31/26 (2006.01) C12N 9/12 (2006.01) C12P 19/62 (2006.01)

Patent

CA 2175379

A coupling system (1) is provided for lockably coupling together machine tool components that comprises a male coupling (3) having a recess (19) at a distal end that includes follower surfaces (24), and female coupling (9) having an opening (31) disposed along its longitudinal axis for receiving the distal end of the male coupling (3), and a pair of opposing jaw members (12) pivotally mounted in the opening (31) and having cam surfaces (44) engageable with the follower surfaces (24) of the male coupling (3). The system (1) includes a drive train (13) for pivotally moving the jaw members (12) apart in order to inter-engage the cam (44) and follower surfaces (24) of the female (5) and male (3) couplings that includes an axially movable, ball-shaped element (52) disposed in opposing recesses (50) present in the jaw members (12) for prying the jaw members (12) apart, a pair of opposing wedge members (58) for moving the ball-shaped drive element (52) axially toward the free ends of the jaw members (12), and a screw (64) having right and left hand threads on either of its ends for moving the wedge members (58) toward and away from one another. The drive train (13) generates high clamping forces between the male (3) and female (5) couplings in a small envelope and with a large degree of mechanical advantage.

Système de couplage (1) permettant de coupler ensemble de manière verrouillable des éléments de machines-outils, comprenant un raccord mâle (3) comportant un évidement (19) à son extrémité distale qui comprend des surfaces de contre-came (24), et un raccord femelle (9) pourvu d'une ouverture (31) pratiquée le long de son axe longitudinal destinée à recevoir l'extrémité distale du raccord mâle (3), et une paire de mâchoires opposées (12) montées pivotantes dans l'ouverture (31) et comportant des surfaces (44) de came pouvant s'imbriquer dans les surfaces de contre-came (24) du raccord mâle (3). Ce système (1) comprend un train d'engrenage (13) qui sert à ouvrir par pivotement les mâchoires (12) pour qu'elles enserrent la came (44) et les surfaces de contre-came (24) des raccords mâle (3) et femelle (5). Ce train d'engrenage comprend un élément (52) en forme de bille à déplacement axial qui est positionné dans des évidements opposés (50) prévus dans les mâchoires (12) pour pousser et écarter ces dernières (12), une paire de coins opposés (58) servant à déplacer axialement l'élément d'entraînement (52) en forme de bille vers les extrémités libres des mâchoires (12), et une vis (64) présentant des filets orientés à droite et à gauche formés sur ses deux extrémités servant à rapprocher et écarter mutuellement les coins (58). Ce train d'engrenage (13) génère de puissantes forces de serrage entre les raccords mâle (3) et femelle (5) dans une petite enveloppe, et ainsi qu'une force de levier importante.

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