Rotary cutting tool having axial position adjustment arrangement
AssigneeIscar, Ltd.
InventorSvitoslav Serbutovsky
Life of this patent
Estimating the term…
Abstract
A rotary cutting tool includes a tool holder and a tool body releasably attached thereto. The tool body has a cutting portion that includes a peripheral insert pocket, for retaining a cutting insert. The tool holder includes an adjustment arrangement that includes a biasing member, movably attached to the tool holder, having a biasing portion. The cutting portion is adjustable between a non-flexed position and a flexed position. In the flexed position, the cutting portion is elastically deformed in a forward direction due to biasing engagement with the biasing portion, thereby adjusting the axial position of the insert pocket and thus the cutting insert.
Claims38
A rotary cutting tool (20), having a tool longitudinal axis (A), defining a forward to rearward direction (DF, DR) and about which the rotary cutting tool (20) is rotatable in a rotational direction (R), the rotary cutting tool (20) comprising
- a tool holder (24) comprising:
- a holder peripheral surface (46) extending circumferentially along the tool longitudinal axis (A) and forming a boundary of a holder front surface (48) at a holder forward end (50) of the tool holder (24);
- and
- an adjustment arrangement (60) comprising a biasing member (62) which is movably attached to the tool holder (24) and comprises a biasing portion (64);
- and
- a tool body (22), releasably attached to the tool holder (24) at the holder forward end (50) thereof, the tool body (22) comprising:
- opposing body forward and rearward surfaces (26, 28) and a body peripheral surface (30) extending therebetween;
- and
- a plurality of angularly spaced apart cutting portions (32), each comprising an insert pocket (34) disposed at the body peripheral surface (30), at least one of the plurality of cutting portions (32) comprising an adjustable cutting portion (32A);
- wherein
- the adjustable cutting portion (32A) is adjustable between a non-flexed position and a flexed position;
- in the non-flexed position, the body rearward surface (28) located at the adjustable cutting portion (32A) defines a body plane (BP) that is perpendicular to the tool longitudinal axis (A);
- and
- in the flexed position, the adjustable cutting portion (32A) is elastically deformed in the forward direction (DF) due to the biasing portion (64) pushing against the body rearward surface (28) of the tool body (22) without directly contacting a cutting insert seated in the insert pocket (34), and the biasing portion (64) extends further axially forward than the body plane (BP).
A rotary cutting tool (20) having a tool longitudinal axis (A), defining a forward to rearward direction (DF, DR) and about which the rotary cutting tool (20) is rotatable in a rotational direction (R), the rotary cutting tool (20) comprising
- a tool holder (24) having a holder longitudinal axis (H);
- a tool body (22) having a body central axis (B), the tool body (22) being releasably attached to a forward end of the tool holder (24) with the body central axis (B) and the holder longitudinal axis (H) being coincident with the tool longitudinal axis (A);
- at least one cutting insert (36) mounted on the tool body (22);
- and
- a lever (68) pivotally mounted directly on the tool holder (24) and configured to adjust an axial position of the at least one cutting insert (36) mounted on the tool body (22), without directly contacting the at least one cutting insert.
A rotary cutting tool (20), having a tool longitudinal axis (A), defining a forward to rearward direction (DF, DR) and about which the rotary cutting tool (20) is rotatable in a rotational direction (R), the rotary cutting tool (20) comprising
- a tool holder (24) comprising:
- a holder peripheral surface (46) extending circumferentially along the tool longitudinal axis (A) and forming a boundary of a holder front surface (48) at a holder forward end (50) of the tool holder (24);
- and
- an adjustment arrangement (60) comprising a biasing member (62) which is movably attached to the tool holder (24) and comprises a biasing portion (64);
- and
- a tool body (22), releasably attached to the tool holder (24) at the holder forward end (50) thereof, the tool body (22) comprising:
- opposing body forward and rearward surfaces (26, 28) and a body peripheral surface (30) extending therebetween;
- and
- a plurality of angularly spaced apart adjustable cutting portions (32, 32A), each comprising an insert pocket (34) disposed at the body peripheral surface (30);
- wherein:
- each of the adjustable cutting portions (32A) is adjustable between a non-flexed position and a flexed position;
- in the flexed position, the adjustable cutting portion (32A) is elastically deformed in the forward direction (DF) due to the biasing portion (64) pushing against the body rearward surface (28) of the tool body (22) without directly contacting a cutting insert seated in the insert pocket (34);
- and
- the tool body (22) is reversible, whereby the rotational direction is also reversed.
Dependencies are inferred from the claim text.