Machining planar workpieces

US11478835B2 · kind B2 · utility

Assignee

• TRUMPF Werkzeugmaschinen GmbH + Co. KG · DE

Inventors

• Markus Wilhelm · Gerlingen, DE
• Rainer Hank · Lambach, DE
• Marc Klinkhammer · Ditzingen, DE
• Leonard Schindewolf · Rutesheim, DE
• Simon Ockenfuss · Eppelheim, DE
• Jens Kappes · Echterdingen, DE
• Dennis Traenklein · Nufringen, DE
• Alexander Tatarczyk · Spaichingen, DE
• Joerg Neupert · Stuttgart, DE
• Dominik Bitto · Strohberg, DE
• Markus Maatz · Echterdingen, DE
• Christian Jakisch · Eppelheim, DE

Key dates

• Filing date: Mar 25, 2019
• Grant date: Oct 25, 2022
• Expiry date: May 19, 2039

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B21D37/08
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

A planar workpiece machining device has an upper tool and a lower tool that are movable toward each other in a reciprocation direction and in the opposite direction to machine a workpiece arranged therebetween. The upper tool has a clamping shaft, an upper main body, and a tool body arranged opposite the clamping shaft on the main body and having an upper bending edge. The lower tool has a lower main body, on which a counter tool body having a lower bending edge and a counter holder are provided. The lower bending edge is oriented facing the counter holder. The upper bending edge is stationary to the upper main body, and the lower bending edge is stationary to the lower main body. The upper bending edge is associated with an undercut on the tool body and the lower bending edge is associated with an undercut on the counter tool body.