EP 1401593 B1 20050608 - METHOD FOR SETTING THE TRAVEL OF A PRESS BRAKE
Title (en)
METHOD FOR SETTING THE TRAVEL OF A PRESS BRAKE
Title (de)
VERFAHREN ZUR EINSTELLUNG DER BAHN EINER ABKANTPRESSE
Title (fr)
PROCEDE DE REGLAGE DE LA COURSE D'UNE PRESSE-PLIEUSE
Publication
Application
Priority
- CH 0200154 W 20020315
- CH 4902001 A 20010316
Abstract (en)
[origin: US7079919B2] A method for setting the travel of a press brake comprising at least one sensor, which measures a physical parameter (p) that varies with the force exerted by the punch on a piece of sheet metal placed on the die, and an electronic device that controls the displacement of the mobile apron. Instantaneous bending angle alpha under load of the piece is calculated as a function of the displacement; the bearing force (f) of the punch on the piece is calculated using the value of the physical parameter (p); the sequence of values for the instantaneous bending angle/bearing force pair (alpha, f) is compared to a reference curve (alpha, f)<SUB>ref </SUB>which is pre-recorded during a bending operation involving the same material, and the electronic device calculates a bottom dead center correction taking account of the deviation between the (alpha, f) pairs and reference curve (alpha, f)<SUB>ref</SUB>.
IPC 1-7
IPC 8 full level
B21D 5/02 (2006.01)
CPC (source: EP US)
B21D 5/02 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 02074463 A1 20020926; AT E297272 T1 20050615; CN 1286590 C 20061129; CN 1496289 A 20040512; DE 60204568 D1 20050714; DE 60204568 T2 20060524; EP 1401593 A1 20040331; EP 1401593 B1 20050608; ES 2244749 T3 20051216; JP 2004520939 A 20040715; JP 4050619 B2 20080220; US 2004111177 A1 20040610; US 7079919 B2 20060718
DOCDB simple family (application)
CH 0200154 W 20020315; AT 02703430 T 20020315; CN 02806558 A 20020315; DE 60204568 T 20020315; EP 02703430 A 20020315; ES 02703430 T 20020315; JP 2002573164 A 20020315; US 47206803 A 20030916