Cutting tool having an anti-slip arrangement

Patent metadata

Field	Value
Publication number	US-9573204-B2
Application number	US-201314398888-A
Country	US
Kind code	B2
Filing date	Jun 3, 2013
Priority date	Jun 6, 2012
Publication date	Feb 21, 2017
Grant date	Feb 21, 2017

Abstract

A cutting tool and a cutting insert, each of which including a base surface and an anti-slip arrangement adjacent thereto. Each anti-slip arrangement includes an actuator surface and non-parallel first and second abutment surfaces, and the actuator surface of the cutting tool is a surface of a clamp of the cutting tool. The cutting insert is mounted on the cutting tool via engagement of the base surfaces thereof and the clamp is operable to bias the actuator surfaces against each other and thereby force the first and second abutment surfaces against each other, for preventing slippage of the cutting insert along the tool's base surface.

First claim

The invention claimed is:

1. A tool having a cutting direction and comprising: an insert seating region comprising a tool base surface, tool inner and peripheral regions located on opposing sides of the insert seating region, the cutting direction being defined as extending from the tool inner region towards the tool peripheral region, and a tool anti-slip arrangement;
the tool anti-slip arrangement comprising first and second tool abutment surfaces formed adjacent to the tool base surface and being non-parallel to each other and to the tool base surface, and a clamp located at the tool inner region and comprising a tool actuator surface lying in a tool actuator surface plane which is oriented transverse to the tool base surface;
wherein pairs of closest points of the first and second tool abutment surfaces that lie within respective common tool abutment surface planes which are parallel to the tool actuator surface plane, are a predetermined distance apart;
at least one of the predetermined distances has a greater magnitude than another predetermined distance which is associated with a pair of points further spaced from the tool actuator surface plane; and
the clamp is configured for force application in the cutting direction via the tool actuator surface.

2. The tool according to claim 1 , wherein the tool provides a continuous wall from the first abutment surface to the second abutments surface.

3. The tool according to claim 1 , wherein the force application is in a direction parallel to the tool base surface.

4. The tool according to claim 1 , wherein the tool is configured for linear motion of the clamp in a plane parallel to the tool base surface.

5. The tool according to claim 4 , wherein the linear motion of the clamp is in a direction transverse to the cutting direction.

6. The tool according to claim 1 , wherein the tool is formed with a track which is bounded by an inner wall of the tool, the track and clamp being configured for continuous contact of the inner wall and clamp at each position thereof.

7. The tool according to claim 1 , wherein each pairs of points of the first and second tool abutment surfaces which are closer to the tool actuator surface plane than another pair of points of the first and second tool abutment surfaces, have a predetermined distance of greater magnitude than the latter pair of points.

8. The tool according to claim 1 , wherein the clamp is substantially planar shaped, except for an upwardly projecting clamp projection thereof.

9. The tool according to claim 1 , wherein a first tool base width of the tool base surface which extends from, and perpendicular to, the first tool abutment surface, is greater than a second tool base width which extends from, and perpendicular to, the second tool abutment surface.

10. The tool according to claim 1 , wherein the first and second tool abutment surfaces are formed in a single tool recess.

11. The tool according to claim 1 , in combination with a cutting insert, wherein:
the cutting insert is mounted in the insert seating region; and
the cutting insert is clamped by the clamp.

12. The tool according to claim 11 , wherein:
the cutting insert comprises opposing insert top and base surfaces which are connected by an insert peripheral surface, at least one cutting edge, and an insert anti-slip arrangement formed adjacent to the insert base surface;
the insert anti-slip arrangement comprises first and second insert abutment surfaces which are non-parallel to each other and to the insert base surface, and an insert actuator surface which is oriented transverse to the insert base surface;
the insert base surface contacts the tool base surface; and
the clamp biases the tool actuator surface against the insert actuator surface to thereby bias the first and second insert abutment surfaces against the first and second tool abutment surfaces for preventing slippage of the cutting insert along the tool base surface.

13. The tool according to claim 12 , wherein:
the tool anti-slip arrangement and the insert anti-slip arrangement are configured to prevent motion of the cutting insert in a plane parallel with the tool base surface.

14. The tool according to claim 12 , wherein:
the only surfaces of the tool which contact a periphery of the cutting insert are the tool actuator surface and the first and second tool abutment surfaces.

15. The tool according to claim 12 , wherein:
the only surfaces of the tool which contact the cutting insert are the tool actuator surface, the tool base surface and the first and second tool abutment surfaces.

16. The tool according to claim 12 , wherein:
the tool actuator surface and the insert actuator surface are both blunt.

17. The tool according to claim 16 , wherein:
one of the tool actuator surface and the insert actuator surfaces is flat, and the other is curved.

18. The tool according to claim 17 , wherein:
the tool actuator surface is curved and the insert actuator surface is flat.

19. The tool according to claim 12 , wherein:
in a bottom view of the cutting insert, each of the first and second insert abutment surfaces and the insert actuator surface face outward from the insert.

20. The tool according to claim 12 , wherein:
the insert actuator surface and/or the first and second insert abutment surfaces of the cutting insert are perpendicular to the insert base surface.

21. The tool according to claim 12 , wherein:
the insert actuator surface and/or the first and second insert abutment surfaces of the cutting insert are at least partially slanted in a downward-outward direction.

22. The tool according to claim 12 , wherein:
the insert actuator surface and the first and second insert abutment surfaces are formed on a single protuberance.

23. The tool according to claim 12 , wherein:
the insert base surface extends along the entire insert peripheral surface.

Assignees

• Iscar Ltd

Inventors

• Hecht Gil

Classifications

• B23C2200/161

  with projections · CPC title

• Y10T407/22

  including holder having seat for inserted tool · CPC title

• Y10T407/228

  Rotatable cam clamp element · CPC title

• Y10T407/192

  with separate means to fasten tool to holder · CPC title

• Y10T407/1934

  with separate means to fasten tool to holder · CPC title