Cutting tool and cutting tool body with a holding member for holding a coupling screw
AssigneeIscar, Ltd.
InventorsGil Hecht, Rajat Sharma
Life of this patent
Estimating the term…
Abstract
A cutting tool body is configured for securing a cutting insert with a female thread. The cutting tool body includes a machining end and a tool peripheral surface which extends therefrom. The cutting tool body further includes a through, non-threaded tool coupling bore which opens out to the tool peripheral surface and a coupling screw which has a coupling screw thread. The coupling screw is being located in the tool coupling bore and configured to secure the cutting insert. The cutting tool body further includes a holding member which engages the coupling screw thread at least when the holding member is not in contact with the cutting insert.
Claims26
A cutting tool body (12) configured for securing a cutting insert (14) having a female thread (78) and comprising:
- a machining end (18) and a tool peripheral surface (26) extending therefrom;
- a through, non-threaded tool coupling bore (42) opening out to the tool peripheral surface (26);
- and
- a coupling screw (52) having a coupling screw thread (60) and being located in the tool coupling bore (42) and configured to secure the cutting insert (14);
- wherein the cutting tool body (12) further includes a holding member (80) which engages the coupling screw thread (60) at least when the holding member (80) is not in contact with the cutting insert (14), and
- wherein the holding member (80) protrudes into the tool coupling bore (42).
A cutting tool body (12) configured for securing a cutting insert (14) having a female thread (78) and comprising:
- a machining end (18) and a tool peripheral surface (26) extending therefrom;
- a through, non-threaded tool coupling bore (42) opening out to the tool peripheral surface (26);
- and
- a coupling screw (52) having a coupling screw thread (60) and being located in the tool coupling bore (42) and configured to secure the cutting insert (14);
- wherein the cutting tool body (12) further includes a holding member (80) which engages the coupling screw thread (60) at least when the holding member (80) is not in contact with the cutting insert (14), and wherein the tool peripheral surface (26) comprises a pocket (16) in which the cutting insert (14) is seated, the pocket (16) comprises an outwardly facing pocket base surface (36) and first and second support walls (38, 40) which extend from the pocket base surface (36).
A cutting tool body (12) configured for securing a cutting insert (14) having a female thread (78) and comprising:
- a machining end (18) and a tool peripheral surface (26) extending therefrom;
- a through, non-threaded tool coupling bore (42) opening out to the tool peripheral surface (26);
- and
- a coupling screw (52) having a coupling screw thread (60) and being located in the tool coupling bore (42) and configured to secure the cutting insert (14);
- wherein the cutting tool body (12) further includes a holding member (80) which engages the coupling screw thread (60) at least when the holding member (80) is not in contact with the cutting insert (14), and wherein the holding member (80) applies a reaction force (RF) on the coupling screw (52) in a direction of a coupling screw rotation axis (R) which is equal or lower than a maximum holding force (MIHF) which can cause plastic deformation in either the coupling screw (52) or the holding member (80).
Dependencies are inferred from the claim text.