Clamping member, tool holder and indexable cutting tool

B - Operations – Transporting – 23 – B

Patent

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Details

B23B 27/16 (2006.01)

Patent

CA 2731424

A projection of a pressing member is accurately inserted into a cutting-blade-tip mounting hole and is engaged with the inner peripheral surface of the mounting hole to reliably fix the cutting blade tip to a tool holder. A pressing member comprises a body and a projection (3). The body has an upper surface engageable with the head of a fastening bolt (40), a lower surface facing a tool holder (10), and a bolt hole (5) into which the fastening bolt (40) penetrating between the upper surface and the lower surface is inserted. The projection (3) projects from the lower surface of the body and is engageable with the mounting hole (31) formed in the cutting blade tip (30). The projection (3) comprises sloped surfaces (3a) facing the direction of rotation of the fastening bolt (40) about the center axis thereof and tilted so that the projection tapers from the root side toward the front end side thereof.

Une saillie dun élément de pression est minutieusement insérée dans un orifice de montage dune pointe de lame de découpe et est mise en prise avec la surface périphérique interne de lorifice de montage pour fixer de manière fiable la pointe de lame de découpe à un support doutil. Un élément de pression comprend un corps et une saillie (3). Le corps présente une surface supérieure pouvant se mettre en prise avec la tête dun boulon de fixation (40), une surface inférieure faisant face à un support doutil (10), et un orifice de boulon (5) dans lequel le boulon de fixation (40), pénétrant entre la surface supérieure et la surface inférieure, est inséré. La saillie (3) se projette depuis la surface inférieure du corps et peut être mise en prise avec lorifice de montage (31) ménagé dans la pointe de la lame de coupe (30). La saillie (3) comprend des surfaces inclinées (3a) qui font face à la direction et sont inclinées de sorte que la saillie se rétrécisse du côté racine vers le côté de lextrémité avant correspondant.

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