Readjustment System

• US 20140133930A1
• Filed: 07/17/2012
• Published: 05/15/2014
• Est. Priority Date: 07/19/2011
• Status: Active Grant

• Current Assignee: Alfing Kessler Sondermaschinen GmbH (Alfing Sondermaschinen-Beteiligungsverwaltungsgesellschaft mbH)
• Original Assignee: Mauser-Werke Oberndorf Maschinenbau GmbH (Krause & Mauser Holding GmbH)
• Inventors: Weidinger, Franz
• Granted Patent: US 9,956,620 B2
• Time in Patent Office: Days
• US Class Current: 408/147
• CPC Class Codes: B23B 2260/108 Piezoelectric elements
• CPC Class Codes: B23B 29/034 with tools moving radially, e.g. for making chamfers or undercuttings
• CPC Class Codes: B23B 29/03432 radially adjustable during manufacturing
• CPC Class Codes: B23B 29/03489 Adjustment means not specified or not covered by the groups B23B29/03435 - B23B29/03478
• CPC Class Codes: B23G 5/04 Dies
• CPC Class Codes: Y10T 408/85 to move radially

Abstract

The invention relates to a readjustment system that comprises an advancing head, wherein a tool can be moved in an advancing direction by a tool slide which is adjusted by means of at least one piezo actuator.

Claims

1. A readjustment system comprising an advancing head supporting a cutting edge configured to have at least one piezoelectric actuator for radially adjusting the cutting tool, characterized in that the advancing head includes a tool slide displaceable in the radial direction that is movable along a guideway in the radial direction for adjusting the cutting edge by means of the piezoelectric actuator.

2. The readjustment system according to claim 1, wherein the tool slide is biased in the direction of a home position via at least one counterforce element.

3. The readjustment system according to claim 2, wherein the counterforce element is a spring or a spring assembly.

4. The readjustment system according to claim 2, wherein the counterforce element is arranged approximately in parallel to the piezoelectric actuator.

5. The readjustment system according to claim 1, wherein a plurality of piezoelectric actuators is arranged in parallel and/or in series.

6. The readjustment system according to claim 5, wherein at least two piezo actuator units each including at least two piezoelectric actuators arranged in series with respect to each other are arranged in parallel to each other.

7. The readjustment system according to claim 6, wherein the tool slide is biased in the direction of a home position via at least one counterforce element arid the counterforce element is arranged approximately symmetrically in a plane between the two piezo actuator units.

8. The readjustment system according to claim 1, wherein the tool slide is biased in the direction of a home position via at least one counterforce element and the guideway is delimited, on the one hand, by a support of the counterforce element and, on the other hand, by a support for the at least one piezoelectric actuator.

9. The readjustment system according to claim 1, wherein the guideway for the tool slide is covered toward a working space by a cover.

10. The readjustment system according to claim 1, wherein the advancing head comprises a HSK (hollow shank taper) clamping device for clamping a tool configured to include the cutting edge.

11. The readjustment system according to claim 1, wherein an effective direction of the piezoelectric actuator extends in the radial direction as advancing direction.