Insert holder having insert receiving recess with insert orientation projection and cutting tool
AssigneeIscar, Ltd.
InventorGil Hecht
Life of this patent
Estimating the term…
Abstract
A cutting tool includes a cutting insert resiliently clamped in an insert holder. The insert holder includes a forwardly located insert mounting portion that includes an insert receiving recess which extends along a recess axis. The insert holder includes a fastening member through hole opening out to the insert receiving recess. The insert receiving recess includes an insert orientation projection. The fastening member through hole has a through hole angular extent about the recess axis. The insert orientation projection has an insert orientation projection angular extent about the recess axis. The insert orientation projection angular extent at least partially angularly overlaps the through hole angular extent about the recess axis.
Claims39
An elongated insert holder (24) having a holder longitudinal axis (B) defining opposite forward to rearward directions (DF, DR), the insert holder (24) comprising:
- a holder peripheral surface (26) extending circumferentially about the holder longitudinal axis (B), the holder peripheral surface (26) intersecting, and forming a boundary of, a holder forward end surface (28) at a forward end of the insert holder (24);
- a holder shank portion (30) and an insert mounting portion (32) located at a forward end thereof, the insert mounting portion (32) comprising:
- an insert receiving recess (38) extending along a recess axis (L) and opening out to the holder forward end surface (28), the insert receiving recess (38) comprising a recess peripheral surface (40) extending circumferentially about the recess axis (L) and an insert orientation projection (42) projecting from the recess peripheral surface (40) into the insert receiving recess (38);
- and
- a fastening member through hole (54) opening out to the holder peripheral surface (26) and to the recess peripheral surface (40) and comprising a through hole peripheral surface (56) extending therebetween, wherein:
- in a first recess cross-sectional view taken in a first recess radial plane (RP′) through the through the fastening member through hole (54):
- the through hole peripheral surface (56) forms a through hole contour (60) comprising two opposing through hole contour lines (61);
- and
- the through hole contour lines (61) intersect the recess peripheral surface (40) at two through hole points (TP), the two through hole points (TP) defining a through hole angular extent (TE) about the recess axis (L);
- and
- in a second recess cross-sectional view taken in a second recess radial plane (RP2) through the insert orientation projection (42):
- the insert orientation projection (42) has an insert orientation projection angular extent (PE) about the recess axis (L);
- wherein:
- the second recess radial plane (RP2) is axially rearward of the first recess radial plane (RP1);
- and
- the insert orientation projection angular extent (PE) at least partially angularly overlaps the through hole angular extent (TE) about the recess axis (L).
An elongated insert holder (24) having a holder longitudinal axis (B) defining opposite forward to rearward directions (DF, DR), the insert holder (24) comprising:
- a holder peripheral surface (26) extending circumferentially about the holder longitudinal axis (B), the holder peripheral surface (26) intersecting, and forming a boundary of, a holder forward end surface (28) at a forward end of the insert holder (24);
- a holder shank portion (30) and an insert mounting portion (32) located at a forward end thereof, the insert mounting portion (32) comprising:
- an insert receiving recess (38) extending along a recess axis (L) and opening out to the holder forward end surface (28), the insert receiving recess (38) comprising a recess peripheral surface (40) extending circumferentially about the recess axis (L) and an insert orientation projection (42) projecting from the recess peripheral surface (40) into the insert receiving recess (38);
- and
- a fastening member through hole (54) opening out to the holder peripheral surface (26) and to the recess peripheral surface (40) and comprising a through hole peripheral surface (56) extending therebetween, wherein:
- in a first recess cross-sectional view taken in a first recess radial plane (RP1) through the fastening member through hole (54):
- the through hole peripheral surface (56) forms a through hole contour (60) comprising two opposing through hole contour lines (61);
- a minor peripheral portion (63) of the recess peripheral surface (40) is seen extending between the two opposing through hole contour lines (61);
- and
- the insert orientation projection (42) is formed on at least a portion of the minor peripheral portion (63).
Dependencies are inferred from the claim text.