EP 2403664 B1 20150916 - METHOD FOR FREE BENDING WITH AN ADJUSTABLE DIE
Title (en)
METHOD FOR FREE BENDING WITH AN ADJUSTABLE DIE
Title (de)
VERFAHREN ZUM FREIBIEGEN MIT EINEM EINSTELLBAREN GESENK
Title (fr)
PROCÉDÉ DE PLIAGE LIBRE AVEC UNE MATRICE RÉGLABLE
Publication
Application
Priority
- AT 2010000065 W 20100304
- AT 3502009 A 20090304
Abstract (en)
[origin: WO2010099559A1] The invention relates to an adaptive adjusting method for a bending tool assembly (1) for air bending sheet metal parts (7), wherein a die width w (12) of the snaker (3) can be varied in a direction normal to the displacement plane (6). During each bending operation, an actual thickness of the sheet metal part (7) is captured and a thickness deviation dt of the actual thickness from a target thickness is calculated. Furthermore, a correction value dw is established for the die width (12) depending on the thickness deviation dt based on a model of the bending operation, and the die width w (12) is changed by the correction value dw prior to conducting the bend forming operation. The invention further relates to a bending tool assembly (1), comprising a bending punch (2) and a snaker (3), wherein the bending punch (2) can be moved along a displacement plane (6) relative to the snaker (3). The snaker comprises a first (17) and second (18) die part, which are connected, independently from each other, detachably normal to the displacement plane (6) and longitudinally displaceably to a bench beam (5).
IPC 8 full level
B21D 5/02 (2006.01)
CPC (source: EP)
B21D 5/02 (2013.01); B21D 5/0209 (2013.01); B21D 5/0227 (2013.01)
Designated contracting state (EPC)
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 SE SI SK SM TR
DOCDB simple family (publication)
WO 2010099559 A1 20100910; AT 507911 A1 20100915; AT 507911 B1 20101115; EP 2403664 A1 20120111; EP 2403664 B1 20150916
DOCDB simple family (application)
AT 2010000065 W 20100304; AT 3502009 A 20090304; EP 10714838 A 20100304