Adjustable lead angle chamfering toolholder

Details Adjustable lead angle chamfering toolholder Adjustable lead angle chamfering toolholder

B - Operations, Transporting

23

B

B23B 51/10 (2006.01) B23B 27/16 (2006.01) B23C 5/10 (2006.01) B23C 5/24 (2006.01)

Patent

CA 2284869

An adjustable lead angle toolholder is disclosed for selectively cutting a workpiece at 30~, 45~, or 60~ angles. The toolholder may have a rotatable, cylindrical endmill body (5) that includes a radially-oriented wall (9) or a stationary, square shank having a planar wall on its distal end. The toolholder further includes a cutting insert (18) having at least one linear cutting edge (18), and a mounting assembly (11) for pivotally mounting the insert (18) onto the wall (9) of the endmill body (5) such that a lead angle of the linear cutting edge (19) is adjustable with respect to the outer periphery of the toolholder body.

L'invention concerne un porte-outil à réglage de l'angle d'attaque, pour la découpe sélective de pièces à travailler selon des angles de 30·, 45· ou 60·. Le porte-outil peut avoir un corps rotatif et cylindrique de fraise en bout (5), comprenant une paroi à orientation radiale (9) ou un foret à queue carrée stationnaire à paroi plane en extrémité distale. Le porte-outil comporte en outre une plaquette de coupe (18) ayant au moins un tranchant linéaire (18), et un ensemble de montage (11) pour fixer pivotante la plaquette (18) sur la paroi (9) du corps de fraise en bout (5), de manière à pouvoir donner au tranchant linéaire (19) un angle d'attaque réglable par rapport au pourtour extérieur du corps du porte-outil.

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