Cutting Tool Having Releasably Mounted Self-Clamping Cutting Head
AssigneeIscar, Ltd.
InventorGil Hecht
Life of this patent
Estimating the term…
Abstract
A cutting tool has a tool shank and a replaceable cutting head resiliently secured to the tool shank by an interference fit between a male fixation member of the cutting head and a female fixation member of the tool shank. The male fixation member has a resilience slit. In each cross section of the cutting tool taken perpendicular to an axis of rotation of the cutting tool through mutual abutment regions, the cross sectional profiles of the mutual abutment regions are arcuate sectors.
Claims23
A cutting tool (10) having an axis of rotation (L) around which the cutting tool (10) rotates in a direction of rotation (R), the cutting tool (10) comprising:
- a tool shank (14) having a forward end (60) provided with a female fixation member (88);
- and
- a replaceable self-clamping cutting head (12) provided with a male fixation member (24);
- wherein:
- the male fixation member (24) has a resilience slit (28);
- the replaceable cutting head is resiliently secured to the forward end (60) of the tool shank (14) by an interference fit between the male fixation member (24) and the female fixation member (88) at mutual abutment regions (100);
- and
- in each cross section of the cutting tool (10) taken perpendicular to the axis of rotation (L) through the mutual abutment regions (100), cross sectional profiles of the mutual abutment regions (100) comprise mutual arcuate sectors.
A self-clamping cutting head (12) comprising:
- a cutting portion (20);
- a cutting head coupling portion (22) forming a one-piece single unitary part with the cutting portion (20), the cutting head coupling portion (22) comprising a male fixation member (24) extending in a rearward direction of the cutting portion (20) and terminating in a cutting head bottom surface (26);
- head flutes (18) extending in a rearward direction into a periphery of the male fixation member (24);
- and
- a resilience slit (28) dividing the male fixation member (24) into two male fixation segments (30);
- wherein:
- each male fixation segment (30) comprises a cutting head major fixation wall (32) separated from an associated cutting head minor fixation wall (32′) by one of the head flutes (18).
A cutting tool (10) having an axis of rotation (L) around which the cutting tool (10) rotates in a direction of rotation (R), the cutting tool (10) comprising:
- a tool shank (14) having a forward end (60) provided with a female fixation member (88);
- and
- a self-clamping cutting head (12) comprising:
- a cutting portion (20);
- a cutting head coupling portion (22) forming a one-piece single unitary part with the cutting portion (20), the cutting head coupling portion (22) comprising a male fixation member (24) extending in a rearward direction of the cutting portion (20) and terminating in a cutting head bottom surface (26);
- head flutes (18) extending in a rearward direction into a periphery of the male fixation member (24);
- and
- a resilience slit (28) dividing the male fixation member (24) into two male fixation segments (30);
- wherein:
- each male fixation segment (30) comprises a cutting head major fixation wall (32) separated from an associated cutting head minor fixation wall (32′) by one of the head flutes (18);
- wherein:
- the self-clamping cutting head is resiliently secured to the forward end (60) of the tool shank (14) by an interference fit between the male fixation member (24) and the female fixation member (88) at mutual abutment regions (100);
- and
- in each cross section of the cutting tool (10) taken perpendicular to the axis of rotation (L) through the mutual abutment regions (100), cross sectional profiles of the mutual abutment regions (100) comprise mutual arcuate sectors.
Dependencies are inferred from the claim text.