WO2000073011A8 - Welding system - Google Patents

Welding system

Info

Publication number
WO2000073011A8
WO2000073011A8 PCT/US1999/016437 US9916437W WO0073011A8 WO 2000073011 A8 WO2000073011 A8 WO 2000073011A8 US 9916437 W US9916437 W US 9916437W WO 0073011 A8 WO0073011 A8 WO 0073011A8
Authority
WO
WIPO (PCT)
Prior art keywords
resistance
coolant
heat
welding system
workpieces
Prior art date
Application number
PCT/US1999/016437
Other languages
French (fr)
Other versions
WO2000073011A1 (en
Inventor
Ronald C Brown
Steven D Tracey
Joseph L Miller
Original Assignee
Dct Inc
Ronald C Brown
Steven D Tracey
Joseph L Miller
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US09/321,931 external-priority patent/US6359249B1/en
Application filed by Dct Inc, Ronald C Brown, Steven D Tracey, Joseph L Miller filed Critical Dct Inc
Priority to AU33419/00A priority Critical patent/AU3341900A/en
Priority to PCT/US1999/016437 priority patent/WO2000073011A1/en
Priority to EP99969977A priority patent/EP1222052A1/en
Publication of WO2000073011A1 publication Critical patent/WO2000073011A1/en
Publication of WO2000073011A8 publication Critical patent/WO2000073011A8/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/24—Electric supply or control circuits therefor
    • B23K11/25—Monitoring devices
    • B23K11/252—Monitoring devices using digital means
    • B23K11/256—Monitoring devices using digital means the measured parameter being the inter-electrode electrical resistance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/30—Features relating to electrodes
    • B23K11/31—Electrode holders and actuating devices therefor
    • B23K11/314—Spot welding guns, e.g. mounted on robots

Abstract

The present invention relates to an improved resistance weld-based gun assembly (20) for use in an electric welding system without need for plant-provided air and water-cooling circulation systems. In one aspect of the invention, a resistance-based force controller (66) calculates the resistance of the workpieces (28, 30). The measured resistance is compared to a predetermined resistance and the sandwiching force of the electrodes (24, 26) incrementally adjusted until the resistance of the workpieces (28, 30) is acceptable. The invention also relates to a closed loop coolant system (132, 162) having a coolant line (135, 165), a coolant (134, 164) contained within the coolant line, a heat exchanger (136, 166), and a mechanical coolant pump. In yet another aspect of the invention, the welding system relies solely on electrode arm material for heat dissipation, the heat being conducted through the electrode arm material to an outer surface (270) of the arm (262, 264) where the heat is dissipated through natural convection.
PCT/US1999/016437 1998-08-05 1999-07-20 Welding system WO2000073011A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU33419/00A AU3341900A (en) 1998-08-05 1999-07-20 Welding system
PCT/US1999/016437 WO2000073011A1 (en) 1998-08-05 1999-07-20 Welding system
EP99969977A EP1222052A1 (en) 1998-08-05 1999-08-18 Welding system

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US9538598P 1998-08-05 1998-08-05
US60/095,385 1998-08-05
US09/321,931 US6359249B1 (en) 1995-04-19 1999-05-28 No wat welding system
US09/321,931 1999-05-28
PCT/US1999/016437 WO2000073011A1 (en) 1998-08-05 1999-07-20 Welding system

Publications (2)

Publication Number Publication Date
WO2000073011A1 WO2000073011A1 (en) 2000-12-07
WO2000073011A8 true WO2000073011A8 (en) 2002-06-06

Family

ID=27377943

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1999/016437 WO2000073011A1 (en) 1998-08-05 1999-07-20 Welding system

Country Status (3)

Country Link
EP (1) EP1222052A1 (en)
AU (1) AU3341900A (en)
WO (1) WO2000073011A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102441751A (en) * 2012-01-06 2012-05-09 江苏华光双顺机械制造有限公司 Closed circulation cooling system for welder

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2906170B1 (en) * 2006-09-22 2008-10-17 Schneider Electric Ind Sas METHOD FOR RESISTOR WELDING TWO METAL PIECES AND WELDING DEVICE USED FOR CARRYING OUT SAID METHOD
DE102011087958A1 (en) 2011-12-08 2013-06-13 Kuka Roboter Gmbh welding robots

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5921274B2 (en) * 1980-05-14 1984-05-18 日本アビオニクス株式会社 resistance welding equipment
JPS57202988A (en) * 1981-06-10 1982-12-13 Nippon Abionikusu Kk Accommodation controlling device for resistance welding
JPS58165307A (en) * 1982-03-26 1983-09-30 Toshiba Corp Transformer
JPS61150786A (en) * 1984-12-24 1986-07-09 Nissan Motor Co Ltd Spot welding method
JPH0815669B2 (en) * 1988-07-06 1996-02-21 日本電装株式会社 Control device for resistance welding
FR2670698B1 (en) * 1990-12-19 1993-04-16 Lorraine Laminage POINT RESISTANCE WELDING METHOD AND WELDING ELECTRODE FOR CARRYING OUT THE METHOD.
FR2692507A1 (en) * 1991-11-27 1993-12-24 Ravera Liliane Continuous current feed device for a resistance welding machine - comprises a transformer, rectifier and clamp having a common cooling system for reducing device size and improving energy efficiency
JP3322448B2 (en) * 1993-07-16 2002-09-09 小原株式会社 Resistance welding control method
CN1037590C (en) * 1993-09-14 1998-03-04 亚历山大宾兹尔无限有限股份两合公司 Nozzle of arc welding or cutting
US5484976A (en) * 1993-10-01 1996-01-16 Axis Usa, Inc. Fusing methods and apparatus for use in making dynamo-electric machines
US5632911A (en) * 1995-03-17 1997-05-27 Doben Limited Apparatus for aiding in the manipulation of a tool
US5504299A (en) * 1995-04-03 1996-04-02 Heckendorn Larry C Resistance welding sensor
US5742022A (en) * 1995-04-19 1998-04-21 Dct Avanced Engineering, Inc. Industrial workcell system and method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102441751A (en) * 2012-01-06 2012-05-09 江苏华光双顺机械制造有限公司 Closed circulation cooling system for welder

Also Published As

Publication number Publication date
AU3341900A (en) 2000-12-18
EP1222052A1 (en) 2002-07-17
WO2000073011A1 (en) 2000-12-07

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