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.
Patent No.:
Date of Patent:
Mar. 17, 2020
Filed:
Mar. 22, 2018
Böllhoff Verbindungstechnik Gmbh, Bielefeld, DE;
Torsten Draht, Schloß Holte-Stukenbrock, DE;
Andre Kleinemeier, Verl, DE;
Böllhoff Verbindungstechnik GmbH, Bielefeld, DE;
Abstract
A joining device, in particular a self-piercing rivet tool, is disclosed that is operated with the assistance of different drive steps. These drive steps comprise at least one movement step with a fast punch speed, and a power step with a low punch speed and strong punch force. In combination with the joining device, a clamping device module is use that, based on the at least one spring in the clamping device module, generates discernible threshold values in the force/punch path diagram, with the assistance of which a switchover between different drive steps of the joining device is activated. Moreover, the present disclosure relates to a joining method for the above-described joining device.