Patent ID: 7476061
Filing Date: 2009-01-13
Classification: B23B,Y10T

Abstract:
1. A turning tool, comprising: a basic body having an insert seat defined by a center axis; a turning insert detachably mounted in the insert seat, said turning insert being indexable and having, about the center axis, a symmetrical basic shape that is determined by a clearance surface extending between a top side and an underside, said turning insert including a chip-removing cuffing edge adjacent to the top side; said turning insert including coupling means formed in the underside, said coupling means including an elongate engagement member having a pair of spaced-apart flanks which are inclined relative to each other at a certain angle in a cross-sectional plane being perpendicular to a length extension of the engagement member, said coupling means of the turning insert mechanically engaging a complementary coupling means that forms the insert seat of the basic body and likewise includes an elongate engagement member having a pair of spaced-apart flanks which are inclined relative to each other at an angle as viewed in a cross-sectional plane being perpendicular to a length extension thereof; wherein a first one of the two coupling means comprises three radially extending and equiangularly spaced-apart engagement members; and the second one of the two coupling means comprises at least two engagement members extending radially from the center axis and forming the same angle as two of the three engagement members of the first coupling means as viewed towards a plane view being perpendicular to the center axis, wherein the angle between the pairs of flanks of each individual engagement member is obtuse.