Cutting tool with modular pocket wall

Patent metadata

Field	Value
Publication number	US-12128484-B2
Application number	US-202217868966-A
Country	US
Kind code	B2
Filing date	Jul 20, 2022
Priority date	Jul 20, 2022
Publication date	Oct 29, 2024
Grant date	Oct 29, 2024

Abstract

A cutting tool includes a base body and a cutting head at least partially disposed within a modular pocket of the base body. The modular pocket is formed by at least one wall section removably attached to the base body. In one variation, a non-removable portion of the base body also forms part of the modular pocket. In another variation, the modular pocket is formed by two removable wall sections on opposite sides of the modular pocket. In yet another variation, the removable wall sections include a clamping portion to exert a downward force on the cutting head to enable mounting the cutting head in the modular pocket using an interference fit.

First claim

What is claimed is:

1. A modular cutting tool, comprising:
a base body having a base flute portion; and
a cutting head at least partially disposed within a modular pocket of the base body, the cutting head having a cutting head flute portion and a dovetail shaped portion protruding radially outward therefrom,
wherein the modular pocket of the base body is formed by at least one wall section removably attached to the base body by a threaded fastener, the at least one wall section including a dovetail shaped recess for receiving the dovetail shaped portion of the cutting head when the at least one wall section is removably attached to the base body, the threaded fastener being axially offset from the dovetail shaped portion, and
wherein the base flute portion and the cutting head flute portion align to form a flute of the modular cutting tool when the cutting head is mounted on the base body.

2. The modular cutting tool of claim 1 , wherein the modular pocket of the base body is formed by two wall sections removably attached to the base body.

3. The modular cutting tool of claim 1 , wherein the threaded fastener has a threaded shaft portion and a non-threaded head portion having a relatively larger diameter than the threaded shaft portion.

4. The modular cutting tool of claim 1 , wherein the base body is made of a different material than the at least one wall section.

5. The modular cutting tool of claim 1 , wherein the base body is made of a different material than the cutting head.

6. The modular cutting tool according to claim 1 , wherein the modular pocket of the base body is formed with two wall sections removably attached to the base body, and wherein a portion of the base body is disposed between each wall section and the cutting head.

7. The modular cutting tool according to claim 6 , wherein each wall section includes a clamping portion that contacts the cutting head to provide a downward force on the cutting head to securely hold the cutting head in the modular pocket using an interference fit.

8. The modular cutting tool according to claim 1 , wherein the modular pocket is formed by a non-removable portion of the base body and the at least one wall section removable attached to the base body.

9. The modular cutting tool according to claim 1 , wherein the at least one wall section includes a downwardly extending ear that cooperates with a recess formed in the base body.

10. The modular cutting tool according to claim 9 , wherein the downwardly extending ear includes a threaded aperture for receiving a threaded fastener for removably attaching the at least one wall section to the base body.

11. The modular cutting tool according to claim 1 , wherein the at least one wall section directly contacts the cutting head when the at least one wall section is removably attached to the base body.

12. The modular cutting tool according to claim 1 , wherein the cutting head includes a coupling pin received within a bore of the base body when the cutting head is mounted within the modular pocket.

13. The modular cutting tool according to claim 1 , wherein the modular pocket of the base body is formed with two wall sections removably attached to the base body, and wherein the threaded fastener removably attaches both wall sections to the base body.

14. The modular cutting tool according to claim 1 , wherein the cutting head has a bottom surface with a recess for receiving a protrusion extending from a floor of the modular pocket.

15. The modular cutting tool according to claim 1 , wherein the modular cutting tool comprises a twist drill.

Assignees

• Kennametal Inc

Inventors

• Kuhlemann Patrick
• Schuffenhauer Michael
• Da Silva Marcelo Euripedes
• Filho Ruy Frota De Souza

Classifications

• B23B51/0004 Primary

  with cutting heads or inserts attached by screw means · CPC title

• B23B51/0003

  with exchangeable heads or inserts · CPC title

• B23B51/02

  Twist drills · CPC title

• B23C5/22

  Securing arrangements for bits or teeth {or cutting inserts} · CPC title

• B23B2205/04

  Fixation screws, bolts or pins of particular form · CPC title