Groove insert, clamping holder for a groove insert and groove cutting tool

Patent metadata

Field	Value
Publication number	US-9586265-B2
Application number	US-201313767026-A
Country	US
Kind code	B2
Filing date	Feb 14, 2013
Priority date	Mar 9, 2012
Publication date	Mar 7, 2017
Grant date	Mar 7, 2017

Abstract

A groove insert to be received in a tool holder has, along its top and bottom side and on its rear side, a holding structure which is formed by holding faces which taper toward one another and by way of which the groove insert is fixed in the tool holder in a positive locking manner. The tool holder has corresponding counter faces. The groove insert and the tool holder form a groove cutting tool.

First claim

What is claimed is:

1. A groove insert to be received in a clamping holder, comprising:
two opposite ends, wherein one end is a front side defined by a main free face and the opposite end defined by a rear side, which extends substantially parallel to the front side;
a top side, a bottom side, and a plurality of side faces, wherein a major edge formed at an intersection between the front side and the top side, and wherein the top side includes a top holding structure having a pair of holding faces that taper toward one another to form a longitudinal rib having a central, longitudinal groove therebetween, and wherein the bottom side includes a bottom holding structure having a pair of holding faces that taper toward one another to form a longitudinal rib having a central, longitudinal groove therebetween, and wherein the rear side includes a rear holding structure having a pair of holding faces that taper toward one another, and wherein the top holding structure, the bottom holding structure and the rear holding structure enable the groove insert to be securely mounted in a clamping holder.

2. The groove insert as claimed in claim 1 , wherein the bottom holding structure extends over the entire length of the bottom side.

3. The groove insert as claimed in claim 1 , wherein the top side further includes a front portion extending from the main edge to a continuation, and wherein the top holding structure extends from the rear side to the continuation.

4. The groove insert as claimed in claim 3 , wherein the central, longitudinal groove of the top holding structure extends through the continuation.

5. The groove insert as claimed in claim 1 , wherein the top holding structure and the bottom holding structure diverge in the direction of the rear side.

6. The groove insert as claimed in claim 1 , wherein the front side and the rear side taper toward each other by up to 10° in the direction of the top side.

7. A clamping holder having a receiving means for a groove insert as claimed in claim 1 , said clamping holder comprising a carrier and a clamping jaw having a bottom side with a top holding structure, which abuts the top holding structure of the groove insert and can be pressed against the top holding structure of the groove insert by way of a clamping means, the carrier further comprising a rear holding structure, which abuts the rear holding structure of the groove insert, and a bottom holding structure, which abuts the bottom holding structure of the groove insert, wherein the rear holding structure and the bottom holding structure are a one-piece component of the carrier.

8. The clamping holder as claimed in claim 7 , wherein the carrier has a front face, and wherein the rear holding structure extends at an angle of between 3° and 5° with respect to a plane parallel to the front face.

9. The clamping holder as claimed in claim 7 , wherein the carrier has a front face, and wherein the bottom holding structure on the carrier forms an angle of less than 90° with respect to the front face of the carrier.

10. The clamping holder as claimed in claim 7 , wherein the top holding structure of the clamping jaw and the bottom holding structure on the carrier continuously extend toward one another in the direction of the front face from the rear side.

11. The clamping holder as claimed in claim 7 , wherein the top holding structure, the bottom holding structure and the rear holding structure merge into one another to define a receiving means for the insert.

12. The clamping holder as claimed in claim 7 , wherein the carrier has a front face and wherein a slot disposed between the carrier and the clamping jaw extends obliquely upward with respect to a plane that is perpendicular to the front face.

13. The clamping holder as claimed in claim 12 , wherein the clamping jaw extends obliquely downward in the direction of the front face.

14. The clamping holder as claimed in claim 7 , wherein the clamping means is a clamping screw with a head having an underside, wherein a contact face which is opposite the underside of the head is provided on the clamping jaw and the contact face extends in an oblique manner with respect to the underside of the head such that a clamping force is generated with a force component which is directed in the direction of the rear side.

15. A groove cutting tool, comprising:
a clamping holder having a carrier and a clamping jaw having a bottom side with a top holding structure, the carrier further comprising a rear holding structure, and a bottom holding structure which abuts the bottom holding structure of the groove insert, wherein the rear holding structure and the bottom holding structure are a one-piece component of the carrier; and
a groove insert received in the clamping holder, said groove insert having two opposite ends, wherein one end is a front side defined by a main free face and the opposite end defined by a rear side, which extends substantially parallel to the front side; a top side, a bottom side, and a plurality of side faces, wherein a major edge formed at an intersection between the front side and the top side, and wherein the top side includes a top holding structure having a pair of holding faces that taper toward one another to form a longitudinal rib having a central, longitudinal groove therebetween, and wherein the bottom side includes a bottom holding structure having a pair of holding faces that taper toward one another to form a longitudinal rib having a central, longitudinal groove therebetween, and wherein the rear side includes a rear holding structure having a pair of holding faces that taper toward one another,
wherein the top holding structure of the clamping jaw abuts the top holding structure of the groove insert when the groove insert is received in the clamping holder, and
wherein the rear holding structure of the carrier abuts the rear holding structure of the groove insert when the groove insert is received in the clamping holder, and
wherein the bottom holding structure of the carrier abuts the bottom holding structure of the groove insert when the groove insert is received in the clamping holder.

16. The groove cutting tool as claimed in claim 15 , wherein the top side of the groove insert further includes a front portion extending from the main edge to a continuation, and a top holding structure extending from the rear side to the continuation.

17. The groove cutting tool as claimed in claim 16 , wherein the longitudinal groove extends through the continuation.

18. The groove cutting tool as claimed in claim 15 , wherein the top holding structure of the insert and the bottom holding structure of the insert diverge in the direction of the rear side of the insert.

19. The groove cutting tool as claimed in claim 15 , wherein the front side of the insert and the rear side of the insert diverge with respect to each other by up to 10° in the direction of the top side of the insert.

20. The groove insert as claimed in claim 1 , further comprising a flush face extending obliquely upward from the bottom side and having a top portion that opens outwardly and obliquely to the rear side, and a rounding extending between the top side and the rear side, wherein the flush face and the rounding shortens a length of the rear side.

21. The groove insert as claimed in claim 1 , wherein the top and bottom holding structures are identical in shape.

Assignees

• Kaufmann Igor
• Abdul Anwar Sadat Mohideen
• Havrda Franz
• Kennametal Inc

Inventors

• Kaufmann Igor
• Abdul Anwar Sadat Mohideen
• Havrda Franz

Classifications

• B23B29/043 Primary

  with cutting-off, grooving or profile cutting tools, i.e. blade- or disc-like main cutting parts (B23B29/14 takes precedence) · CPC title

• Y10T407/24

  with chip breaker, guide or deflector · CPC title

• Y10T407/2282

  including tool holding clamp and clamp actuator · CPC title

• B23B27/1611 Primary

  characterised by having a special shape · CPC title

• B23B2205/02

  Fixation using an elastically deformable clamping member · CPC title