Machining tool for high-speed machining

Details Machining tool for high-speed machining Machining tool for high-speed machining

B - Operations, Transporting

23

B

B23B 27/16 (2006.01) B23C 5/24 (2006.01)

Patent

CA 2356090

The invention relates to a machining tool for carrying out high-speed machining in the machining of metals. According to the invention, at least one cutting body is held by a clamping element in a clamped manner inside a tip seat of a tool holder, which is delimited only by one back pressure supporting surface and by one bearing surface. The bearing surface for the clamping element and the bearing surface of the tip seat form an angle (x) that exceeds the self-locking and which is open toward the back pressure supporting surface. The cutting body is provided with a groove in which a sliding pin engages which is arranged, in a manner that is eccentric and parallel to the rotational axis thereof, on a bearing pin, which can be actuated from the exterior and which is rotatably mounted in a bearing opening of the tool holder, said bearing opening passing through the bearing surface and/or the back pressure supporting surface. The diameter of the sliding pin essentially corresponds to the width of the groove.

L'invention concerne un outil à enlèvement de copeaux pour usinage à vitesse élevée dans le domaine de l'enlèvement de copeaux de métal. Cet outil présente au moins un corps de coupe (2) maintenu à effet de serrage par un élément de serrage (6,7) dans un logement de plaque de porte-outil (1), délimité uniquement par une surface de soutien de contre-pression (5) et par une surface d'appui. La surface d'appui prévue pour l'élément de serrage et la surface d'appui (4) du logement de plaque incluent un angle (x) s'ouvrant en direction de la surface de soutien de contre-pression et dépassant le blocage automatique. Dans le corps de coupe, il est prévu une rainure (9) dans laquelle entre une goupille de translation (10) montée sur un boulon de palier (12) de manière excentrée et parallèle à son axe de rotation, qui est quant à lui actionnable depuis l'extérieur et monté rotatif dans un passage de palier du porte-outil, qui pénètre dans la surface d'appui et/ou la surface de soutien de contre-pression. Le diamètre de cette goupille de déplacement correspond sensiblement à la largeur (b) de la rainure.

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