Reciprocating tool holder assembly

B - Operations – Transporting – 23 – Q

Patent

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Details

B23Q 5/28 (2006.01) B23Q 1/58 (2006.01) B23Q 5/027 (2006.01) B23Q 5/46 (2006.01) H02K 33/18 (2006.01)

Patent

CA 2258831

A reciprocating tool post assembly is disclosed that may provide substantially linear excursions of a cutting tool mounted therein. The apparatus includes a voice coil assembly having a longitudinal axis that provides for the reciprocating movement of the assembly and to which a pair of coil arms is attached. The assembly also includes a pair of lever arms, each being pivotally attached between a respective coil arm and a draw bar, with a pair of fulcrum members attached to a base of the assembly that engage each respective lever arm to provide a fulcrum about which each respective lever arm may pivot. One end of the draw bar is attached to a tool support that is guided in a substantially axial movement by a guide member, such that, when a cutting tool is attached to the tool support the movement of the voice coil causes the cutting tool to reciprocate substantially axially with respect to the base.

L'invention concerne un ensemble support porte-outil à va-et-vient permettant à un outil coupant monté sur celui-ci d'effectuer des courses sensiblement linéaires. L'appareil comprend un ensemble bobine mobile présentant un axe longitudinal permettant le mouvement de va-et-vient de l'ensemble et auquel est fixé une paire de bras de bobine. L'ensemble comprend également une paire de bras de levier, chacun étant fixé pivotant entre un bras de bobine respectif et une barre de traction, avec une paire d'éléments de points d'appui fixés à une base de l'ensemble venant au contact de chaque bras de levier respectif afin d'offrir un point d'appui autour duquel chaque bras de levier respectif peut pivoter. Une extrémité de la barre de traction est fixée à un support d'outil, lequel est guidé en un mouvement sensiblement axial par un élément de guidage, de sorte que, lorsqu'un outil coupant est fixé au support d'outil, le mouvement de la bobine mobile provoque le va-et-vient de l'outil coupant sensiblement axialement par rapport à la base.

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