Patent · US Active

Forming tool for the production of a hollow component, and method for operating the forming tool

US10315239B2 · kind B2 · utility

0Cited by

0References

17Claims

0Family size

Assignee

BENTELER AUTOMOBILTECHNIK GMBH · DE

Inventors

Robert Stockter · Hannover, DE
Volker Rackow · Paderborn, DE
Walter Herrmann · Sellersville, US

Key dates

Filing date	Feb 3, 2018
Grant date	Jun 11, 2019
Priority date	—
Expiry date	Feb 3, 2038

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB21C37/08
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A forming tool and a method of operating thereof for producing a hollow component by sheet-metal forming is disclosed having an upper tool and a lower tool, a mandrel that is driven into the hollow component to be formed and an auxiliary mandrel that is repositionable relative to the mandrel are positioned on the upper tool. The mandrel and the auxiliary mandrel are coupled to the upper tool by one spring-elastic actuation element in such a manner that the mandrel, when the upper tool is being lowered, is driven into the hollow component to be formed and comes to bear therein. A further lowering of the upper tool causes a compression of the coupling element, and the auxiliary mandrel carrying out a movement relative to the mandrel and being driven further into the hollow component.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.