Quill feed for a portable drill adapted to be mounted to a...

B - Operations – Transporting – 23 – B

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Details

B23B 45/14 (2006.01) B25H 1/00 (2006.01)

Patent

CA 2345723

A magnetic based drill assembly (10) comprising a support platform (12) mounted to the magnetic base ( 14) for attachment to a work piece includes a feed mechanism (26) operatively connected to the platform (12) for rectilinear movement between a fully retracted position and a fully extended position. The feed mechanism (26) includes a splined collar (28) slidably mounted to the splined arbor (24) for movement relative to the splined arbor (24) and for rotatably supporting a drill tool (68). The motor (22) is mounted in a stationary position offset and substantially parallel to the feed mechanism (26) to reduce overall height and weight of the drill assembly (10). As the splined arbor (24) is located within a cylindrical feed arbor (28), a liquid coolant can be directly injected on the drill tool (68) and workpiece during operation of the drill assembly (10).

Ensemble perceuse (10) à base magnétique, qui comporte une plate-forme de support (12) montée sur la base magnétique (14) pour la fixation sur une pièce. Ladite perceuse comporte un mécanisme d'entraînement (26) connecté de manière opérationnelle à la plate-forme (12) et destiné à effectuer un mouvement linéaire entre une position de rétraction totale et une position d'extension totale. Ledit mécanisme (26) comporte un arbre creux cannelé (28) monté coulissant sur un arbre cannelé (24) de manière à se déplacer par rapport à l'arbre cannelé (24) et destiné au support rotatif d'un foret (68). Le moteur (22) est monté dans une position fixe décalée et pratiquement parallèle au mécanisme d'entraînement (26) pour réduire la hauteur et le poids totaux de l'ensemble perceuse (10). L'arbre cannelé (24) étant situé à l'intérieur d'un arbre d'entraînement cylindrique (28), un liquide de refroidissement peut être directement injecté sur le foret (68) et la pièce lors du fonctionnement de l'ensemble perceuse (10).

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