Tools, machines, and methods for machining planar workpieces

US11219936B2 · kind B2 · utility

Assignee

• TRUMPF Werkzeugmaschinen GmbH + Co. KG · DE

Inventors

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

Key dates

• Filing date: Mar 26, 2019
• Grant date: Jan 11, 2022
• Expiry date: Apr 25, 2039

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B21D35/001
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

A tool for machining a planar workpiece, comprising an upper tool having a clamping shaft and an upper main body that lie on a common positioning axis, a tool body arranged opposite to the clamping shaft on the upper main body, the tool body comprising a bending edge, and a lower tool having a lower main body that receives a rotational body that is rotatable around an axis of rotation running in a direction of the bending edge of the tool body, wherein the upper tool and the lower tool are movable towards and away from each other in a stroke direction for machining the workpiece arranged therebetween, and wherein the upper main body defines a projection surface that is perpendicular to the positioning axis and the bending edge of the tool body is adjacent tangentially to the projection surface or is outside the projection surface.