US 10,646,927 B2 · Round double-sided cutting insert having a peripheral surface provided with protruding indexing latches, insert holder therefor and cutting tool

Abstract

A round double-sided cutting insert includes an insert peripheral surface that includes a plurality of angularly spaced apart indexing latches protruding therefrom and a plurality of cylindrical insert side abutment surfaces that circumferentially alternate with the plurality of indexing latches. An insert holder has a pocket peripheral surface which includes at least one indexing gap and a plurality of pocket side abutment surfaces that circumferentially alternate with the at least one indexing gap. When the cutting insert is releasably attached to the insert holder, to constitute a fastened position of a cutting tool, each of the plurality of pocket side abutment surfaces abuts a respective insert side abutment surface and each indexing gap has a respective indexing latch located therein.

Claims38

Dependent claims

A round indexable cutting insert (22), having insert central axis (A), the cutting insert (22) comprising:

opposing insert upper and lower surfaces (30, 32) and an insert peripheral surface (34) extending therebetween, the insert peripheral surface (34) extending about the insert central axis (A);
and
upper and lower cutting edges (40, 42) formed at the intersection of the insert peripheral surface (34) and the insert upper and lower surfaces (30, 32), respectively, wherein:
the insert peripheral surface (34) comprises a plurality of angularly spaced apart indexing latches (54) protruding radially outwardly therefrom and a plurality of insert side abutment surfaces (64) that circumferentially alternate with the plurality of indexing latches (54);
and
the plurality of insert side abutment surfaces (64) lie on an external cylindrical surface (IC) of an imaginary insert cylinder that is co-axial with the cutting insert (22).

3 more elements

An insert holder (24) comprising:

a holder main surface (66) that intersects a holder end surface (68), and
a holder pocket (26) recessed in the holder main surface (66) and opening out to the holder end surface (68) at a pocket opening (70), the holder pocket (26) having a pocket major axis (B) and comprising:
a pocket base surface (72), and a pocket peripheral surface (74) oriented substantially perpendicularly thereto and forming a partial boundary thereof, the pocket base surface (72) being unbounded by the pocket peripheral surface (74) at the pocket opening (70) and comprising a pocket support surface (76);
wherein:
the pocket peripheral surface (74) comprises:
an axially extending internal cylindrical pocket lateral surface (80) divided into a plurality of angularly spaced apart concave right cylindrical pocket side abutment surfaces (88) by at least one non-lateral indexing gap (85) recessed therein, each non-lateral indexing gap (85) located between a pair of adjacent concave right cylindrical pocket side abutment surfaces (88).

3 more elements

Dependencies are inferred from the claim text.

Round double-sided cutting insert having a peripheral surface provided with protruding indexing latches, insert holder therefor and cutting tool

Life of this patent

Round double-sided cutting insert having a peripheral surface provided with protruding indexing latches, insert holder therefor and cutting tool

Life of this patent

Abstract

Claims38