Adjustable cutting tool
AssigneeIscar, Ltd.
InventorGil Hecht
Life of this patent
Estimating the term…
Abstract
A cutting tool has a cutting insert, a tool holder, and an adjustment member. The tool holder includes an insert holder portion and a shank portion, the insert holder portion being rigidly fixed to the shank portion. The cutting insert is removably secured to the insert holder portion by a fastener, at a cutting position in which the operative cutting portion encounters a workpiece at an insert cutting angle. The adjustment member is a non-threadingly retained on the insert holder portion, and operatively connected to the cutting insert. Actuation of the adjustment member causes an increase or decrease of the insert cutting angle.
Claims25
A cutting tool (20, 120) comprising:
- a cutting insert (22), a tool holder (24), and an adjustment member (26, 126);
- the cutting insert (22) having at least one cutting portion (28),
- the tool holder (24) having an insert holder portion (30, 130) and a shank portion (32), the insert holder portion (30, 130) being rigidly fixed to the shank portion (32),
- the adjustment member (26, 126) being non-threadingly retained on the insert holder portion (30, 130), and operatively connected to the cutting insert (22), and
- the cutting insert (22) being removably secured to the insert holder portion (30, 130) by means of a fastener (34), at a cutting position in which the operative cutting portion (28) encounters a workpiece (36) at an insert cutting angle (α),
- wherein actuation of the adjustment member (26, 126) causes an increase or decrease of the insert cutting angle (α).
A method of increasing or decreasing an insert cutting angle (α) of a cutting tool (20, 120) relative to a workpiece (36), the cutting tool (20, 120) comprising:
- a cutting insert (22), a tool holder (24), and an adjustment member (26, 126);
- the cutting insert (22) having at least one cutting portion (28),
- the tool holder (24) having a insert holder portion (30,130) and a shank portion (32), the insert holder portion (30, 130) being rigidly fixed to the shank portion (32),
- the insert adjustment member (26, 126) being non-threadingly retained on the insert holder portion (30, 130), and operatively connected to the cutting insert (22), and
- the cutting insert (22) being removably secured to the insert holder portion (30, 130) by means of a fastener (34),
- the method comprising the steps of:
- untightening the fastener (34),
- actuating the adjustment member (26, 126) without removing any components from the cutting tool (20, 120), and
- retightening the fastener (34).
A cutting tool (20, 120) comprising:
- a tool holder (24) having an insert holder portion (30, 130);
- a cutting insert (22) removably secured to the insert holder portion (30, 130), the cutting insert having an operative cutting portion (28) provided with an associated insert tilt axis (A3) and an active support zone (66) located away from the insert tilt axis (A3);
- and
- an adjustment member (26, 126) non-threadingly retained on the insert holder portion (30, 130) and having a first axis (A1) and a supporting surface (50, 150) at least a first portion of which opposes the cutting insert (22) at the active support zone (66);
- wherein:
- rotation of the adjustment member (26, 126) about the first axis (A1) and relative to the insert holder portion (30, 130) results in a second portion of the supporting surface (50, 150) opposing the active support zone (66), and changes in both the elevation of the secured cutting insert (22) at said active support zone (66) and the tilt of the secured cutting insert (22) about the insert tilt axis (A3), relative to the insert holder portion (30, 130).
Dependencies are inferred from the claim text.