Cutting tool, tool body and cutting insert therefor
AssigneeIscar, Ltd.
InventorsGil Hecht, Oleg Kertsman
Life of this patent
Estimating the term…
Abstract
A cutting tool has a tool body and a cutting insert releasably retained in a pocket of the tool body. The cutting insert has first and second rear insert abutment surfaces and a third forward insert abutment surface and the pocket has first and second rear pocket abutment surfaces and a third forward pocket abutment surface. The first and second abutment surfaces are separated from the third abutment surface by a bore. The third forward pocket abutment surface can be either a socket recessed in a pocket base surface or a protrusion protruding from the base surface; and the third forward insert abutment surface can be correspondingly either a protrusion protruding from an inner surface of the insert or a socket recessed in the inner surface.
Claims17
A cutting tool comprising:
- a cutting insert comprising a cutting portion and a mounting portion, the mounting portion comprising:
- inner and outer surfaces and a peripheral surface extending therebetween;
- a through bore passing through the inner and outer surfaces;
- first and second insert abutment surfaces located on the peripheral surface, the first and second insert abutment surfaces being situated at a greater distance from the cutting portion than the through bore;
- and
- a third insert abutment surface located adjacent the inner surface but spaced apart from the peripheral surface and situated closer to the cutting portion than the through bore;
- and
- a tool body having a pocket comprising:
- a base surface;
- a back wall surface oriented transversely to the base surface and forming a partial boundary of the base surface at a rear end of the pocket;
- first and second pocket abutment surfaces situated on the back wall surface;
- a third pocket abutment surface oriented transversely to the base surface and spaced apart from the back wall surface;
- and
- a threaded bore in the base surface situated closer to a front surface of the tool body than the first and second pocket abutment surfaces and further from the front surface than the third pocket abutment surface;
- wherein:
- the cutting insert is releasably retained in the pocket by a clamping bolt located in the through bore and threadingly received in the threaded bore;
- and
- the first, second and third insert abutment surfaces abut the first, second and third pocket abutment surfaces, respectively.
A cutting insert comprising a cutting portion and a mounting portion, the mounting portion comprising:
- inner and outer surfaces and a peripheral surface extending therebetween;
- a through bore passing through the inner and outer surfaces;
- first and second insert abutment surfaces located on the peripheral surface, the first and second insert abutment surfaces being situated at a greater distance from the cutting portion than the through bore;
- and
- a third insert abutment surface located adjacent the inner surface but spaced apart from the peripheral surface and situated closer to the cutting portion than the through bore.
A tool body having a pocket comprising:
- a base surface;
- a back wall surface oriented transversely to the base surface and forming a partial boundary of the base surface at a rear end of the pocket;
- first and second pocket abutment surfaces situated on the back wall surface;
- a third pocket abutment surface oriented transversely to the base surface and spaced apart from the back wall surface;
- and
- a threaded bore in the base surface situated closer to a front surface of the tool body than the first and second pocket abutment surfaces and further from the front surface than the third pocket abutment surface.
Dependencies are inferred from the claim text.