EP 3731983 B1 20220608 - ARRANGEMENT FOR CHANGING THE SHAPE OF A SHEET-LIKE WORKPIECE
Title (en)
ARRANGEMENT FOR CHANGING THE SHAPE OF A SHEET-LIKE WORKPIECE
Title (de)
ANORDNUNG ZUR FORMÄNDERUNG EINES PLATTENARTIGEN WERKSTÜCKS
Title (fr)
AGENCEMENT DE CHANGEMENT ENSEMBLE DE MODIFICATION DE FORME D'UNE PIÈCE DE TYPE PLAQUE
Publication
Application
Priority
EP 2019050955 W 20190115
Abstract (en)
[origin: WO2020147935A1] The present invention relates to a method for changing the shape of a sheet-like workpiece (10), which has a shaped recess formed by reducing the thickness of the material, comprising arranging the workpiece (10) on at least two spaced-apart supporting elements (12) of a machine bed (13), shaping the workpiece (10) into a final form by step-by-step free bending, in that the steps of bending a part of the workpiece (10) by lowering an upper die (14) between the supporting elements from a waiting position into a shaping position (15), raising the upper die (14) into the waiting position and moving the position of the workpiece (10) relative to the machine bed (13) are performed repetitively in at least one infeeding direction, and is distinguished by the fact that, before the workpiece (10) is shaped into the final form, a filling element (18) adapted to the shaped recess and designed to make up the material thickness is created and is arranged in the region of the shaped recess. The invention also relates to such an arrangement.
IPC 8 full level
B21D 53/30 (2006.01); B21K 1/32 (2006.01)
CPC (source: EP IL KR RU US)
B21D 5/01 (2013.01 - EP IL KR RU US); B21D 31/005 (2013.01 - EP IL KR US); B21D 53/92 (2013.01 - EP IL KR RU US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2020147935 A1 20200723; BR 112021011416 A2 20230926; CA 3121688 A1 20200723; CN 113365754 A 20210907; EP 3731983 A1 20201104; EP 3731983 B1 20220608; EP 3778062 A1 20210217; EP 3778062 B1 20211020; ES 2901694 T3 20220323; IL 284601 A 20210831; JP 2022515792 A 20220222; KR 20210091785 A 20210722; RU 2763370 C1 20211228; SG 11202106383P A 20210729; US 2022072596 A1 20220310
DOCDB simple family (application)
EP 2019050955 W 20190115; BR 112021011416 A 20190115; CA 3121688 A 20190115; CN 201980088724 A 20190115; EP 19700802 A 20190115; EP 20199066 A 20190115; ES 20199066 T 20190115; IL 28460121 A 20210705; JP 2021536330 A 20190115; KR 20217018598 A 20190115; RU 2021114934 A 20190115; SG 11202106383P A 20190115; US 201917422893 A 20190115