Machine handling device and method for handling an electrically conductive sheet-metal workpiece and also machine arrangement for machining sheet metal

US12064804B2 · kind B2 · utility

Assignee

• TRUMPF Werkzeugmaschinen SE + Co. KG · DE

Inventors

• Harald Mathias · Brackenheim, DE
• Florian Raichle · Backnang, DE
• Frederik Koepp · Strohberg, DE
• Stefan Foerster · Wilthen, DE
• Hagen Jacob · Crostau, DE

Key dates

• Filing date: Mar 6, 2023
• Grant date: Aug 20, 2024
• Expiry date: Mar 6, 2043

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B65G2203/043
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

A machine handling device for handling a sheet-metal workpiece includes a control device that comprises two sensing elements, and a testing station that includes a testing device configured to test functional capability of the control device. The testing device includes a respective electrically conductive testing-contact body for each of the two sensing elements of the control device. The testing station further includes a testing-evaluation device configured to apply a testing voltage between the respective sensing element and the corresponding testing-contact body. The testing-evaluation device includes a testing-measuring unit and a testing-comparing unit. The testing-measuring unit is configured to measure an actual value of a contact-dependent electrical variable that is dependent on a state of an electrically conducting contact between the sensing element and the testing-contact body. The testing-comparing unit is configured to compare the actual value of the contact-dependent electrical variable with a reference value of the contact-dependent electrical variable.