Cutting tool and cutting insert therefor
AssigneeIscar, Ltd.
InventorGil Hecht
Life of this patent
Estimating the term…
Abstract
A cutting tool has a cutting insert releasably retained in an insert pocket. The insert pocket includes a supporting portion having support surfaces and a clamping portion including a socket having a socket wall, the socket extending rearwardly from the supporting portion. The cutting insert has a cutting portion with front abutment surfaces and an elongated locating portion extending rearwardly from the cutting portion. The cutting insert is retained in the insert pocket with the front abutment surfaces abutting the support surfaces and with the locating portion located in the socket with abutment surfaces of the locating portion in abutment with the socket wall.
Claims22
A cutting insert (16) having a longitudinal plane of symmetry (P1) and comprising a cutting portion (20) and an elongated locating portion (24) extending rearwardly from the cutting portion (20), the locating portion (24) having a dividing plane (P2) perpendicular to the longitudinal plane of symmetry (P1);
- the cutting portion (20) having a rake surface (26), an opposing base surface (28) and a peripheral side surface (30) extending therebetween, the peripheral side surface (30) meeting the rake surface (26) at an edge (38) at least a portion of which forms a cutting edge (40), the base surface (28) has a front abutment member (46) having two front abutment surfaces (48) located symmetrically on either side of and inclined with respect to the longitudinal plane of symmetry (P1),
- the locating portion (24) being provided with protruding rear and intermediate abutment members (50, 54) and having a longitudinal axis (L) formed at the intersection of the dividing plane (P2) and the longitudinal plane of symmetry (P1), the rear abutment member (50) being distal the cutting portion (20) and the intermediate abutment member (54) being located closer to the cutting portion (20) than the rear abutment member (50), the rear abutment member (50) having two rear abutment surfaces (52) located symmetrically on either side of the longitudinal plane of symmetry (P1) and the intermediate abutment member having two intermediate abutment surfaces (56) located symmetrically on either side of the longitudinal plane of symmetry (P1), wherein:
- the front and rear abutment members (46, 50) are located on one side of the dividing plane (P2) and the intermediate abutment member (54) is located on the other side of the dividing plane (P2).
A cutting insert (16) having a longitudinal plane of symmetry (P1) and comprising:
- a cutting portion (20) having a rake surface (26), an opposing base surface (28) and a peripheral side surface (30) extending therebetween, the peripheral side surface (30) meeting the rake surface (26) at an edge (38) at least a portion of which forms a cutting edge (40), the base surface (28) having a front abutment member (46) having two front abutment surfaces (48) located symmetrically on either side of and inclined with respect to the longitudinal plane of symmetry (P1);
- and
- an elongated locating portion (24) extending rearwardly from the cutting portion (20) and having a longitudinal axis (L), the locating portion (24) being provided with protruding rear and intermediate abutment members (50, 54), the rear abutment member (50) being distal the cutting portion (20) and the intermediate abutment member (54) being located closer to the cutting portion (20) than the rear abutment member (50), the rear abutment member (50) having two rear abutment surfaces (52) located symmetrically on either side of the longitudinal plane of symmetry (P1), the intermediate abutment member having two intermediate abutment surfaces (56) located symmetrically on either side of the longitudinal plane of symmetry (P1), wherein:
- the rake surface (26) and the intermediate abutment member (54) are visible in a top view of the insert;
- and
- the front and rear abutment members (46, 50) are visible in a bottom view of the insert.
Dependencies are inferred from the claim text.