IP Library › Granted Patent US 11,192,194
Granted Patent B2
US 11,192,194 · App. 13/728,094 · Granted Dec 7, 2021

Tool holder

Inventor: Franz Haimer (Hollenbach-Igenhausen, DE)
Assignee: Franz Haimer Maschinenbau KG
B23C5/26B23B31/005B23B31/107B23B31/117B23B31/1179B23B31/202B23B31/305B23H1/00B23Q3/12B23B2231/026B23B2250/12B23B2260/022B23B2260/026B23B2260/138Y10T29/49995Y10T279/17Y10T407/19Y10T409/30952
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Quick Facts
Patent No.
US 11,192,194
App. No.
13/728,094
Granted
Dec 7, 2021
Kind
B2
Abstract

A tool holder comprising a base element, a deformable receiver for clamping a tool and at least one locking element configured for preventing an axial extraction of the tool from the tool holder through engaging a corresponding opposite element at the tool, wherein the at least one locking element is integrally configured in one piece with the receiver.

Claims (19)

1. A tool holder, comprising: a base element,

a clamping chuck being a shrink fit chuck comprising a deformable receiver for clamping a rotation tool, the deformable receiver comprising a sleeve received within a receiver opening and configured to be heated to expand thermally allowing an inner diameter of the receiver opening to be enlarged for receiving the rotation tool, and at least one locking element integrally configured with the receiver which locks the rotation tool against an axial migration of the rotation tool out of the tool holder; and

a shaft of the rotation tool having at least one locking groove and including a circumferential surface and an end face, wherein the at least one locking element is held in a support bore hole by one of a threaded pin or by press fit, or the at least one locking element is configured with an exterior thread, which is configured corresponding to an inner thread configured in the support bore hole, wherein the at least one locking element engages the at least one locking groove, wherein the at least one locking groove begins at the end face of the shaft, and wherein the at least one locking groove extends into the circumferential surface and is L-shaped, curved, or Includes composite paths where the composite paths are linearly offset from one another.

2. The tool holder according to claim 1 , wherein the at least one locking element and the at least one locking groove are configured at least as a partial ball head.

3. The tool holder according to claim 1 , wherein the at least one locking element of the clamping chuck includes at least two locking elements and wherein the at least one locking groove of the tool includes at least two locking grooves.

4. The tool holder according to claim 1 , wherein the at least one locking groove is disposed in the circumferential surface of the tool shaft, where the at least one locking groove extends at least over a partial section of the shaft.

5. The tool holder according to claim 1 , wherein the at least one locking groove has a path that is at least one of helical, L-shaped, curved, and straight.

6. The tool holder according to claim 1 , wherein the at least one locking groove has a helical surface path having a left pitch direction for the rotation tool with a left groove, and a right pitch direction for the rotation tool with a right groove.

7. The tool holder according to claim 1 , wherein a disposition of the at least one locking element of the tool holder and a disposition of the at least one locking groove of the rotation tool are disposed at the same angle.

8. The tool holder according to claim 1 , wherein the tool includes a shrink-fit tool that is held axially by force imparting elements without clearance, wherein the force imparting elements includes at least one of a compression spring, a conical spring, a coil spring, a disk spring, spring packets, and rubber elastic elements.

9. A tool holder according to claim 1 , wherein the shaft of the tool comprises an outer thread at an end of the shaft, where the outer thread has a left pitch direction for a tool with a left groove, and has an outer thread with a right pitch direction for a tool with a right groove, and the tool holder comprises a corresponding inner thread.

10. The tool holder of claim 1 , wherein the at least one locking groove of the rotation tool comprises at least two locking grooves.

11. The tool holder of claim 1 , wherein the at least one locking groove of the rotation tool comprises at least four locking grooves.

12. The tool holder of claim 1 , wherein the at least one locking element is fixated in the support bore hole.

13. The tool holder of claim 12 , wherein the at least one locking element is fixated in the support bore hole during a process when the at least one locking element engages the at least one locking groove.

14. The tool holder of claim 12 , wherein the at least one locking element is fixated in the support bore hole during insertion of the tool.

15. The tool holder of claim 1 , wherein the at least one locking element is fixated in position in the support bore hole by the threaded pin or the press fit.

16. The tool holder of claim 15 , wherein the at least one locking element is fixated in position in the support bore hole by the threaded pin or the press fit during a process when the at least one locking element engages the at least one locking groove.

17. The tool holder of claim 15 , wherein the at least one locking element is fixated in position in the support bore hole by the threaded pin or the press fit during insertion of the tool.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 3, 2013
From: HAIMER, FRANZ
To: FRANZ HAIMER MASCHINENBAU KG
Reel/Frame 030139/0405 →
Priority Claims (2)
DE 202011109498.0 · Dec 27, 2011 · national
DE 102012110392.5 · Oct 30, 2012 · national
Continuity (2)
Continuation In Part 12296892
Related Publication 20130115023A1 · May 9, 2013