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Pub. No.:    WO/1980/000934    International Application No.:    PCT/US1979/000924
Publication Date: 15.05.1980 International Filing Date: 31.10.1979
B23Q 1/54 (2006.01), B23Q 7/02 (2006.01)
Priority Data:
956592 01.11.1978 US
Abstract: front page image
(EN)A motion translation apparatus and method is provided with is particularly suitable for use with machine tools wherein the workpiece is moved relative to a tool. A stationary guideway member (12) having a track of ball bearings mounted partially projecting from a V-shaped channel is fixed relative to the tool and relative to a rotatably driven turntable (10) on which a hydraulic fluid operated actuator (82) is pivotably mounted at one end. The piston of the actuator is pivotably secured to a link member (60) which is in turn pivotably mounted on one end to the turntable. The free end of the link member opposite the end pivotably mounted to the turntable is pivotably connected to a movable guideway member (70) which has a V-shaped channel adapted to receive and engage projecting portions of the ball bearings in the stationary guideway member for a predetermined arc of rotation of the turntable. The movable guideway member (70) is against the stationary guideway member (12) as the piston (88) is moved outwardly for the predetermined arc of rotation of the turntable. The movable guideway member further has means (40) for fixedly the workpiece to be machined. As the turntable rotates, the movable guideway member carries the e through a path parallel to the track defined by the stationary guideway member and the workpiece is contacted and machined by the tool.
(FR)Dispositif et procede de deplacement par translation qui convient particulierement a l"utilisation avec des outils d"usinage, dans lequel la piece a usiner est deplacee par rapport a un outil. Une piece de guidage stationnaire (12), possedant une piste de roulement a billes, montee de facon a faire saillie partiellement depuis un canal en forme de "V", est fixee par rapport a l"outil (10) et par rapport a une plaque tournante, mue de maniere rotative (10), sur laquelle une piece d"actionnement, mue par un fluide hydraulique (82), est montee a une extremite de maniere pivotante. Le piston de la piece d"actionnement est relie de maniere pivotante a une piece de liaison (60) qui a son tour, est montee, de maniere pivotante, a une extremite de la plaque tournante. L"extremite libre de la piece de liaison, a l"oppose de l"extremite montee de maniere pivotante sur la plaque tournante, est reliee de maniere pivotante a une piece mobile de guidage (70) qui possede un canal en forme de "V" ajuste pour recevoir et cooperer avec les parties en faisant saillie des roulements a billes de la plaque tournante dans la piece stationnaire de guidage pour un arc predetermine de la rotation de la plaque tournante. La piece mobile de guidage (70) est deplacee contre la piece stationnaire de la piece de guidage (12) lorsque le piston (88) est deplace vers l"exterieur selon l"arc de rotation predetermine de la plaque tournante. La piece mobile de guidage a en outre des moyens (40) pour maintenir la piece a usiner. Lorsque la plaque tournante se meut rotativement, la piece mobile de guidage porte la piece a usiner le long d"un chemin parallele a la piste definie par la piece stationnaire de guidage et la piece a usiner est mise au contact de l"outil et usinee par celui-ci.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)