GB991304A - Improvements in or relating to stud welding devices - Google Patents

Improvements in or relating to stud welding devices

Info

Publication number
GB991304A
GB991304A GB4673462A GB4673462A GB991304A GB 991304 A GB991304 A GB 991304A GB 4673462 A GB4673462 A GB 4673462A GB 4673462 A GB4673462 A GB 4673462A GB 991304 A GB991304 A GB 991304A
Authority
GB
United Kingdom
Prior art keywords
switch
coil
contact
rectifier
welding
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB4673462A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries Ltd
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
Application filed by Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB991304A publication Critical patent/GB991304A/en
Expired legal-status Critical Current

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
    • B23K9/00—Arc welding or cutting
    • B23K9/20—Stud welding
    • B23K9/201—Stud welding of the extremity of a small piece on a great or large basis
    • 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
    • B23K9/00—Arc welding or cutting
    • B23K9/20—Stud welding

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Arc Welding Control (AREA)
  • Relay Circuits (AREA)

Abstract

991,304. Welding by pressure. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Dec. 11, 1962 [Dec. 14, 1961], No. 46734/62. Heading B3R. In a stud welding device in which a solenoidoperated switch is connected in the welding supply circuit to be energized by a switching on contact and de-energized if the voltage across the parts to be welded falls below a predetermined low value the welding voltage or a voltage derived therefrom is supplied to two parallel branches, one branch comprising the energizing coil of an auxiliary relay and the other branch comprising the series arrangement of the coil of the switch, the switching on contact and a contact of the relay, the latter contact being connected by a holding contact of the switch. A low voltage supply device 2, Fig. 1, is connected to a stud welding gun 5 and to the work 6 via a switch 3 operated by a solenoid coil 4 connected to the positive side of a rectifier 7 connected across the device 2. The coil is connected via a solenoid switch 9 and starting contact 10 in the gun to the negative side of the rectifier. In operation the rectifier 7 energizes the coil 8 of the switch 9 to close the switch. Operation of switch 10 energizes coil 4 to close switch 3 and apply welding voltage to the workpieces. A holding contact 11 is also closed and the switch 9 opens since the coil 8 is shortcircuited by switch 10. When the weld is formed the voltage across the workpieces is so low that rectifier 7 is short-circuited and coil 4 is de-energized to open switch 3. In a modification the coil 4 is supplied from a rectifier 23, Fig. 2, connected across the device 2 and in series with the switch 9 of the coil 8 and a contact 22 of a further solenoid switch which is provided in a parallel circuit across the device 2. The further solenoid switch comprises a coil 20 supplied from rectifier 7, the normally closed switch 22 and a normally open switch 21. In operation the coil 20 is energized from rectifier 7 to close switch 21 and open switch 22, thus energizing relay 8 to close switch 9. On closing switch 10 the relay 20 is short-circuited to open its switch 21 and close its switch 22. The condenser 13 across coil 8 retains contact 9 closed while coil 4 is energized to close switches 3 and 11. After welding is completed coil 4 is short-circuited and switch 3 opens.
GB4673462A 1961-12-14 1962-12-11 Improvements in or relating to stud welding devices Expired GB991304A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL272542 1961-12-14

Publications (1)

Publication Number Publication Date
GB991304A true GB991304A (en) 1965-05-05

Family

ID=19753478

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4673462A Expired GB991304A (en) 1961-12-14 1962-12-11 Improvements in or relating to stud welding devices

Country Status (2)

Country Link
CH (1) CH409179A (en)
GB (1) GB991304A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3852559A (en) * 1972-07-12 1974-12-03 Hilti Ag Stud welding apparatus
FR2510447A1 (en) * 1981-07-31 1983-02-04 Usm Corp METHOD OF VERIFYING THE SATISFACTORY CHARACTER OF THE ARC WELDING CONDITIONS

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3852559A (en) * 1972-07-12 1974-12-03 Hilti Ag Stud welding apparatus
FR2510447A1 (en) * 1981-07-31 1983-02-04 Usm Corp METHOD OF VERIFYING THE SATISFACTORY CHARACTER OF THE ARC WELDING CONDITIONS

Also Published As

Publication number Publication date
CH409179A (en) 1966-03-15

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