Device for connecting structural components, in particularly by means of direct screwing, especially flow hole screwing, or by means of friction welding, and method for connecting structural components, in particular by means of direct screwing or friction welding

US10010928B2 · kind B2 · utility

Assignee

• DEPRAG Schulz GmbH u. Co. · DE

Inventors

• Gerd Zinn · Hirschau, DE
• Rolf Pfeiffer · Amberg, DE

Key dates

• Filing date: May 13, 2015
• Grant date: Jul 3, 2018
• Expiry date: Oct 21, 2036

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16B5/04
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

A device for direct screwing, in particular flow hole screwing, or friction welding includes a guide element extending in an axial direction and being formed in particular as a guide pipe. A driveshaft is movable in the axial direction, disposed within the guide element and driven by a rotary drive. A feed drive is disposed and constructed to generate a feed movement and feed force transmitted to the driveshaft, which is achieved by a feed unit. During the process, depending on a process parameter, a switchover is made from a high feed force to a reduced feed force (flow hole screwing) or to a higher feed force (friction welding). In order to enable the most compact and weight-saving embodiment possible, the feed unit is disposed coaxially to the driveshaft within the guide element and transmits the feed force to the driveshaft in the axial direction and centrally.