EP 2416919 A1 20120215 - METHOD AND CONTROL DEVICE FOR MONITORING THE QUALITY OF SPOT WELDS OF A RESISTANCE WELDING GUN COMPRISING THE OUTPUTTING OF A WARNING MESSAGE
Title (en)
METHOD AND CONTROL DEVICE FOR MONITORING THE QUALITY OF SPOT WELDS OF A RESISTANCE WELDING GUN COMPRISING THE OUTPUTTING OF A WARNING MESSAGE
Title (de)
VERFAHREN UND STEUERGERÄT ZUM ÜBERWACHEN EINER QUALITÄT VON SCHWEISSPUNKTEN EINER WIDERSTANDSSCHWEISSZANGE MIT AUSGEBEN EINER WARNUNGSMELDUNG
Title (fr)
PROCÉDÉ ET APPAREIL DE COMMANDE SERVANT À SURVEILLER UNE QUALITÉ DE POINTS DE SOUDURE D'UNE PINCE DE SOUDAGE PAR RÉSISTANCE AVEC ÉMISSION D'UN SIGNAL D'ALARME
Publication
Application
Priority
- EP 2010001904 W 20100326
- DE 102009016798 A 20090407
Abstract (en)
[origin: WO2010115524A1] The present invention relates to a method (500) for monitoring and/or regulating the quality of spot welds of a resistance welding gun (100), wherein the method comprises a step of measuring and storing measured values (220, 230) during the execution of resistance spot welds at different points on a workpiece. The measured values (220, 230) represent a voltage, a current, a resistance, a welding time, an energy, a force on welding contacts and/or an output during the production of a resistance spot weld. Furthermore, the method comprises a step of comparing the measured values (220, 230) with a reference measurement value (200), wherein the reference measurement value (200) represents a corresponding voltage, a current, a resistance, a welding time, an energy, a force on welding contacts and/or an output during the production of a corresponding resistance spot weld. Finally, the method comprises a step of outputting a warning message (250) when, during the comparison step, it is established that a predetermined number of successive measured values (230) is outside a predefined tolerance band (210) from the reference measurement value (200).
IPC 8 full level
B23K 11/11 (2006.01); B23K 11/25 (2006.01); B23K 31/12 (2006.01); G05B 19/404 (2006.01); G07C 3/14 (2006.01)
CPC (source: EP KR US)
B23K 11/11 (2013.01 - EP KR US); B23K 11/252 (2013.01 - EP KR US); B23K 11/255 (2013.01 - KR); B23K 11/256 (2013.01 - KR); B23K 11/257 (2013.01 - KR); B23K 11/258 (2013.01 - KR); B23K 31/125 (2013.01 - EP KR US); B23K 2101/006 (2018.07 - EP KR US); B23K 2101/18 (2018.07 - EP KR US)
Citation (search report)
See references of WO 2010115524A1
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)
DE 102009016798 A1 20101014; BR PI1015289 A2 20160419; CN 102458752 A 20120516; EP 2416919 A1 20120215; KR 20120071413 A 20120702; MX 2011010619 A 20120430; RU 2011144607 A 20140420; US 2012118861 A1 20120517; WO 2010115524 A1 20101014
DOCDB simple family (application)
DE 102009016798 A 20090407; BR PI1015289 A 20100326; CN 201080024886 A 20100326; EP 10712709 A 20100326; EP 2010001904 W 20100326; KR 20117023644 A 20100326; MX 2011010619 A 20100326; RU 2011144607 A 20100326; US 201013263147 A 20100326