Patent · US Active

Ring rolling device with axially fixed rolling bearings

US10870144B2 · kind B2 · utility

0Cited by

4References

21Claims

0Family size

Assignee

Hatebur Umformmaschinen AG · CH

Inventors

Andreas Maritz · Liestal, CH
Andreas Matt · Murg, DE
Thomas Christoffel · Herschweiler-Pettersheim, DE

Key dates

Filing date	Apr 13, 2016
Grant date	Dec 22, 2020
Priority date	—
Expiry date	Feb 23, 2037

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB21H1/06
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A ring rolling device for enlarging a ring blank includes a press element, a rotatably mounted mandrel and an advancing arrangement in which the mandrel is rotatably mounted with a first end part in a first rolling bearing and with a second end part in a second rolling bearing. The ring blank can be mounted around the mandrel. By means of the advancing arrangement, the mandrel is movable towards the press element and away from the latter again, wherein a roll gap which decreases in size, and in which the ring blank is rolled, is formed between the mandrel and the press element. The two rolling bearings are arranged axially fixed in the advancing arrangement, and the mandrel is mounted so as to be axially movable relative to these two rolling bearings.

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