Tool body having an inner insert receiving pocket with resilient clamping member, cutting tool and chamfering cutting insert therefor
AssigneeIscar, Ltd.
InventorSHIMON ATHAD
Life of this patent
Estimating the term…
Abstract
A cutting tool includes a tool body having a peripherally disposed outer insert receiving pocket and an interiorly disposed inner insert receiving pocket with a cutting insert resiliently clamped therein. The tool body includes a through recess at least partially circumferentially bounded by a recess circumferential surface. A resilient clamping member extends into the through recess. The inner insert receiving pocket is formed by the resilient clamping member and a recess pocket portion of the recess circumferential surface. A chamfering cutting insert may be retained by the resilient clamping member, without the use of an additional, separate clamping device.
Claims26
A tool body (24) comprising:
- two opposing body side surfaces (26) and a body peripheral surface (28) extending therebetween;
- a peripherally disposed outer insert receiving pocket (58);
- and
- an interiorly disposed inner insert receiving pocket (46) comprising a resilient clamping member (36) configured to resiliently retain a chamfering cutting insert (22) therein without the use of an additional, separate clamping device.
A non-indexable chamfering cutting insert (22), having an insert longitudinal axis (I) defining a forward to rearward direction (DF, DR), the cutting insert (22) comprising:
- opposing insert front and rear end surfaces (60, 62) and an insert peripheral surface (64) extending therebetween, the insert peripheral surface (64) comprising an insert top surface (70);
- a non-cutting edge (100) formed by the intersection of the insert front end surface (60) and the insert top surface (70);
- and
- at least one laterally protruding chamfering portion (90) comprising a chamfering cutting edge (98);
- wherein:
- in a top view of the insert, the non-cutting edge (100) extends on both sides of a vertical plane (PV) containing the insert longitudinal axis (I) and passing through the insert top surface (70);
- and
- the insert top surface (70) comprises an insert top raised portion (80) comprising an insert top abutment surface (86) and an insert top lowered portion (82) comprising an insert top non-abutment surface (88), the insert top lowered portion (82) extending from the insert rear end surface (62) towards the insert top raised portion (80).
A non-indexable chamfering cutting insert (22), having an insert longitudinal axis (I) defining a forward to rearward direction (DF, DR), the cutting insert (22) comprising:
- opposing insert front and rear end surfaces (60, 62) and an insert peripheral surface (64) extending therebetween, the insert peripheral surface (64) comprising an insert top surface (70);
- a vertical plane (PV) containing the insert longitudinal axis (I) and passing through the insert top surface (70);
- a non-cutting edge (100) formed by the intersection of the insert front end surface (60) and the insert top surface (70);
- and
- at least one laterally protruding chamfering portion (90) comprising a chamfering cutting edge (98);
- wherein:
- each chamfering portion (90) is located at a forward end (66) of the cutting insert (22);
- in a top view of the insert, the non-cutting edge (100) extends on both sides of the vertical plane (PV) containing the insert longitudinal axis (I);
- and
- in said top view of the insert, the insert's total length (TL) taken along the insert longitudinal axis (I) is larger than the insert's total width (TW) taken perpendicular to the vertical plane (PV).
Dependencies are inferred from the claim text.