The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 08, 2015

Filed:

May. 28, 2013
Applicant:

Trumpf Werkzeugmaschinen Gmbh + Co. KG, Ditzingen, DE;

Inventors:

Tobias Reiter, Bietigheim-Bissingen, DE;

Wolfgang Laib, Besigheim, DE;

Stefan Buettner, Markgroeningen, DE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D 45/00 (2006.01); B21D 45/08 (2006.01); B21D 28/26 (2006.01); B21D 45/10 (2006.01);
U.S. Cl.
CPC ...
B21D 45/006 (2013.01); B21D 28/265 (2013.01); B21D 45/08 (2013.01); B21D 45/10 (2013.01); Y10T 83/0448 (2015.04); Y10T 83/2137 (2015.04);
Abstract

Machine tools for processing plate-like workpieces by punching include a punching tool including a punch and a punching die, a drive unit for moving the punch and the punching die relative to each other along a stroke axis for cutting a workpiece part free from a plate-like workpiece, a hold-down device that is movable along the stroke axis and that includes a stripper that contacts an upper surface of the plate-like workpiece while the plate-like workpiece is punched through by the punch, a detection device for detecting a reference position of the hold-down device along the stroke axis, wherein the stripper contacts the upper surface of the workpiece at the reference position, and a numerical control unit for positioning the stripper at a particular distance from the reference position such that a workpiece part that has been cut off can be moved away from a processing region.


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