Transfer device in a transfer press or similar metal-forming machine

US5001921A · kind A · utility

Assignee

• L. Schuler GmbH · DE

Inventors

• Franz Schneider · Göppingen, DE
• Hans Hofele · Göppingen, DE
• Kurt Strommer · Geislingen an der Steige, DE
• Sieghard Mueller · Ottenbach, DE

Key dates

• Filing date: Jun 25, 1990
• Grant date: Mar 26, 1991
• Expiry date: Jun 25, 2010

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B21D43/057
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

A transfer device permits different moving sequences of holding devices for the sheet metal parts which are to be moved through the metal-forming machine. The holding devices are fastened to carriages. The carriages are cam-guided, in which case a first carriage carries out a transfer movement from a working stage to an idle stage while taking along a sheet metal part. The return movement is interrupted in an intermediate position during the deforming operation of the sheet metal parts. A second Carriage carries out a transfer movement from the idle stage to a working stage and a return movement which is temporarily interrupted in an intermediate stage. The vertically extending motional parts of curves are used for the picking-up and depositing of sheet metal parts in working stages; the extended lowering movement is used for the depositing of the holding devices on sliding tables which can be moved into the press. As a result of the low-mass construction by means of carriages, high accelerations are possible in the movements. The transfer movements are shortened significantly by the use of intermediate depositing devices in the idle stages.