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Title:
DEVICES AND METHOD FOR MACHINING A WORKPIECE
Document Type and Number:
WIPO Patent Application WO/2018/024554
Kind Code:
A3
Abstract:
The invention relates to a speed-changing shearing or forming active element insert which is designed to be detachably connected to an active element receptacle of a machine tool, the speed-changing shearing or forming active element insert having a speed-changing unit which is in the form of a hydraulic force/distance transducer, the force/distance transducer comprising a housing, the housing interior of which is supplied with a hydraulic fluid, and the force/distance transducer comprising a first piston which is in contact with the hydraulic fluid via one piston end and a second piston which is in contact with the hydraulic fluid via one piston end and the cross-sectional area of which is smaller than the cross-sectional area of the first piston. The invention also relates to the use of the speed-changing shearing or forming active element insert in a machine tool.

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Inventors:
BENKERT, Tim (Wilhelm-Hertz-Straße 10a, München, 80805, DE)
FEISTLE, Martin (Spitzstraße 20, Burgau, 89331, DE)
KOPP, Thomas (Hauptstraße 7, Eching, 85386, DE)
GOLLE, Roland (Hinter den Mauern 4a, Erding, 85435, DE)
Application Number:
EP2017/068824
Publication Date:
April 12, 2018
Filing Date:
July 26, 2017
Export Citation:
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Assignee:
TECHNISCHE UNIVERSITÄT MÜNCHEN (Arcisstraße 21, München, 80333, DE)
International Classes:
B23Q3/06; B21D28/00; B21D45/00; B30B1/00; B30B1/26; B30B15/00; F15B7/00
Foreign References:
US4030391A1977-06-21
FR2487703A11982-02-05
US20020104207A12002-08-08
US4321818A1982-03-30
US20070084357A12007-04-19
GB2053364A1981-02-04
Attorney, Agent or Firm:
BOEHMERT & BOEHMERT ANWALTSPARTNERSCHAFT MBB (LUCKE, AndreasPettenkoferstraße 22, München, 80336, DE)
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