US 9,216,458 B2 · Cutting tool having adjustable insert cutting angle

Abstract

An adjustable insert cutting angle cutting tool comprising a tool holder having a cartridge receiving pocket, an insert cartridge clamped the cartridge receiving pocket by a clamping member, and a cutting insert removably retained in the insert cartridge. The clamping member is operated by a separate fastening member. The cutting insert has at least one operative cutting portion, and the insert cartridge is oriented in a cartridge receiving pocket of the tool holder so that the operative cutting portion encounters a workpiece at an insert cutting angle. The clamping member has a clamping surface with at least one clamping zone, and the same at least one clamping zone makes contact with a non-planar clamped surface of the insert cartridge for different values of insert cutting angle. The insert cutting angle is increased or decreased by reorienting the insert cartridge in the tool holder, following release of the fastening member.

Claims34

Dependent claims

An adjustable insert cutting angle cutting tool (20) comprising:

a tool holder (24) having a cartridge receiving pocket (32),
an insert cartridge (22) clamped in the cartridge receiving pocket (32) by a clamping member (26) operated by a separate fastening member (36), and
a cutting insert (28) removably retained in the insert cartridge (22), the cutting insert having at least one operative cutting portion (30),
the insert cartridge (22) oriented in the cartridge receiving pocket (32) so that the operative cutting portion (30) encounters a workpiece (34) at an insert cutting angle (α1),
wherein the clamping member (26) has a clamping surface (52) which makes contact with a non-planar clamped surface (54) of the insert cartridge (22),
wherein the insert cutting angle (α1) is increased or decreased by reorienting the insert cartridge (22) in the tool holder (24), following release of the fastening member (36), and
wherein the clamping surface (52) has at least one clamping zone (Cz1), and the same at least one clamping zone (Cz1) makes contact with the clamped surface (54) for different values of insert cutting angle (α1).

4 more elements

A method of increasing or decreasing an insert cutting angle (α1) of a cutting tool (20) relative to a workpiece (34), the cutting tool (20) comprising:

an insert cartridge (22) clamped in a tool holder (24) by a clamping member (26), and a cutting insert (28) removably retained in the insert cartridge (22),
the clamping member (26) having a clamping surface (52) which makes contact with a non-planar clamped surface (54) of the insert holder (24), the clamping member (26) operated by a separate fastening member (36),
the clamping surface (52) having at least one clamping zone (Cz1), and the same at least one clamping zone (Cz1) making contact with the clamped surface (54) for different values of insert cutting angle (α1),
the cutting insert (28) having at least one operative cutting portion (30), and
the insert cartridge (22) oriented in a cartridge receiving pocket (32) of the tool holder (24) so that the operative cutting portion (30) encounters a workpiece (34) at the insert cutting angle (α1),
the method comprising the steps of:
releasing the fastening member (36),
reorienting the insert cartridge (22) in the cartridge receiving pocket (32), and
retightening the fastener (36).

6 more elements

Dependencies are inferred from the claim text.

Cutting tool having adjustable insert cutting angle

Life of this patent

Cutting tool having adjustable insert cutting angle

Life of this patent

Abstract

Claims34