Cartridge for a cutting insert

Patent metadata

Field	Value
Publication number	US-9821385-B2
Application number	US-201514598257-A
Country	US
Kind code	B2
Filing date	Jan 16, 2015
Priority date	Jan 16, 2014
Publication date	Nov 21, 2017
Grant date	Nov 21, 2017

Abstract

A cartridge for a cutting insert has a carrier, a rocker, which is attached to the carrier so as to be pivotable and has a seat for a cutting insert, and an adjusting element for adjusting the rocker relative to the carrier.

First claim

What is claimed is:

1. A cartridge for a cutting insert, the cartridge comprising:
a carrier;
a rocker which is attached to the carrier so as to be pivotable, the rocker including a seat which accommodates the cutting insert;
a set screw which attaches the rocker to the carrier, and which permits pivoting movement of the rocker with respect to the carrier about a pivot axis defined by the set screw;
wherein the set screw extends through the seat accommodating the cutting insert;
an adjusting element for adjusting the rocker relative to the carrier; and
a fastening screw which clamps the rocker to the carrier;
the carrier including an arc-shaped guide groove;
the rocker including:
an arc-shaped end surface;
an arc-shaped guide projection that extends from the arc-shaped end surface and engages the arc-shaped guide groove, to guide pivoting movement of the rocker with respect to the carrier;
a thickened section disposed adjacent the seat;
the thickened section comprising an opening which accommodates the fastening screw; and
a pair of side walls which extend from the arc-shaped end surface, are parallel to one another and define therebetween both the thickened section and the seat.

2. The cartridge according to claim 1 , wherein the adjusting element is an adjusting screw which acts between the rocker and the carrier.

3. The cartridge according to claim 2 , wherein the adjusting screw can be screwed into the carrier.

4. The cartridge according to claim 3 , wherein the adjusting screw has a head that contacts the rocker.

5. The cartridge according to claim 4 , wherein the head of the adjusting screw is accommodated in a recess in the rocker.

6. The cartridge according to claim 1 , wherein:
the carrier includes a hole which accommodates the set screw; and
the pivot axis coincides with a longitudinal axis of the hole.

7. The cartridge according to claim 6 , wherein the guide groove has a curvature midpoint which coincides with the longitudinal axis of the hole.

8. The cartridge according to claim 1 , wherein the carrier comprises a bearing block, the bearing block including a flat contact surface which contacts and accommodates the rocker.

9. The cartridge according to claim 1 , wherein the thickened section and the seat are of a similar lateral dimension, as defined in a direction transverse to the pivoting axis and to the side walls.

10. The cartridge according to claim 1 , wherein the opening has a diameter which is larger than a diameter of the fastening screw, to provide play between the fastening screw and the opening.

Assignees

• Kennametal Inc

Inventors

• Woerner Hans
• Ehrmann Rudolf

Classifications

• B23C5/2472 Primary

  the adjusting means being screws · CPC title

• B23C5/2226 Primary

  for plate-like cutting inserts fitted on an intermediate carrier, e.g. shank fixed in the cutter body · CPC title

• B23C5/241

  Operations & Transport · mapped topic

• Y10T407/2222

  Tool adjustable relative to holder · CPC title