EP 1452249 A3 20051116 - Numeric control machine for the cold forming of sheet metal parts
Title (en)
Numeric control machine for the cold forming of sheet metal parts
Title (de)
Numerisch gesteuerte Maschine zum Kaltformen von Blechteilen
Title (fr)
Machine à commande numérique de formage à froid des parts en tôle
Publication
Application
Priority
IT TO20030144 A 20030228
Abstract (en)
[origin: EP1452249A2] The machine (10) comprises a blankholder (11) and a tool (12) for applying a clamping force and a forming force, respectively, on the sheet metal part (13) to be worked, and a drive system (15, 16) for moving the blankholder (11) and the tool (12). The drive system includes: first and second electro-mechanical actuator devices (15, 16) for controlling the motion of the blankholder (11) and of the tool (12), respectively; sensor means (34, 35, 36, 37) associated to the said first and second actuator devices (15, 16) for sensing the linear position thereof and/or the force applied thereby and for providing signals representative of the sensed measures; and a control unit (40) for receiving as input the signals coming from the said sensor means (34, 35, 36, 37) and for producing as output command signals for the actuator devices (15, 16) as a function of the said input signals, according to a closed loop control configuration. <IMAGE>
IPC 1-7
IPC 8 full level
B21D 19/08 (2006.01)
CPC (source: EP)
B21D 19/08 (2013.01)
Citation (search report)
- [X] DE 3441113 A1 19860515 - KLOECKNER MOELLER ELEKTRIZIT [DE]
- [X] US 4819467 A 19890411 - GRAF RAYMOND J [US], et al
- [A] US 5497647 A 19960312 - NAGAKURA SEIJU [JP]
- [A] US 5735155 A 19980407 - MORTON WILLIAM C [US], et al
- [A] US 5857366 A 19990112 - KOYAMA JUNICHI [JP]
- [A] EP 1098722 A1 20010516 - AMADA EUROP [FR]
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1452249 A2 20040901; EP 1452249 A3 20051116; IT TO20030144 A1 20040901
DOCDB simple family (application)
EP 04004429 A 20040226; IT TO20030144 A 20030228