ES362206A1 - Improvements in or relating to welding apparatus and control means therefor - Google Patents

Improvements in or relating to welding apparatus and control means therefor

Info

Publication number
ES362206A1
ES362206A1 ES362206A ES362206A ES362206A1 ES 362206 A1 ES362206 A1 ES 362206A1 ES 362206 A ES362206 A ES 362206A ES 362206 A ES362206 A ES 362206A ES 362206 A1 ES362206 A1 ES 362206A1
Authority
ES
Spain
Prior art keywords
welding
supply
sequence controller
current
sequence
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
ES362206A
Other languages
Spanish (es)
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.)
Warren Fastener Corp
Original Assignee
Warren Fastener Corp
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 Warren Fastener Corp filed Critical Warren Fastener Corp
Publication of ES362206A1 publication Critical patent/ES362206A1/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
    • B23K9/205—Means for determining, controlling or regulating the arc interval
    • 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
    • B23K9/10—Other electric circuits therefor; Protective circuits; Remote controls
    • B23K9/1006—Power supply
    • B23K9/1043—Power supply characterised by the electric circuit
    • B23K9/1068—Electric circuits for the supply of power to two or more arcs from a single source

Landscapes

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

Abstract

Welding apparatus, such as stud welding apparatus, comprises a plurality of welding devices 14(1) ... 14(4) each of which may be supplied from a common welding supply 11 by way of individual contactors 13(1) . . . 13(4) and a common welding sequence controller 12, the readiness of a selected welding device 14 for a welding operation being ascertained by a scanning unit 19 and given access to the sequence controller 12 by means of its associated access control unit 18(1) ... 18(4) whereby the welding device is supplied with current from the supply 11 and the welding operation carried out under the control of the welding sequence controller 12 during which operation the operation of any of the other welding devices 14 is inhibited. When the operation by the selected welding device has ended the scanning, unit 19 restarts to ascertain the readiness for operation of the next welding device which is, in turn, connected to the supply 11 and sequence controller to perform a welding operation and so on. Thus only one sequence controller is required and the welding supply 11 need be sufficient to supply current to one welding device only. Each welding device is provided with switching means enabling the device to be inoperative in a sequence of welding operations. Safety switching means are provided whereby any welding device not in operation is near short circuited to safeguard a welding operator. The scanning unit 19 basically comprises a free-running multivibrator and a binary counter to produce pulses which are used in the control system to sequence the welding operations, the control of both the pilot arc current, produced by withdrawing a stud from the workpiece, and of the welding current being effected by means of thyristors. The control system includes a plurality of NOR logic units, relay and transistor switching units, and cycle counting units, the various stages in each welding operation being effected with relation to a zero crossing in the waveform of the alternating current supply. The stud welding guns 4 may be of the kind described and claimed in Specification 1,118,707.
ES362206A 1967-12-21 1968-12-20 Improvements in or relating to welding apparatus and control means therefor Expired ES362206A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US69249267A 1967-12-21 1967-12-21
US69258667A 1967-12-21 1967-12-21

Publications (1)

Publication Number Publication Date
ES362206A1 true ES362206A1 (en) 1970-12-01

Family

ID=27104980

Family Applications (1)

Application Number Title Priority Date Filing Date
ES362206A Expired ES362206A1 (en) 1967-12-21 1968-12-20 Improvements in or relating to welding apparatus and control means therefor

Country Status (5)

Country Link
DE (1) DE1816785A1 (en)
ES (1) ES362206A1 (en)
FR (1) FR1597996A (en)
GB (1) GB1206730A (en)
NL (1) NL6818564A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2837450C3 (en) * 1978-08-28 1982-01-07 Heinz Soyer-Bolzenschweißtechnik, 8034 Germering Method and circuit arrangement for controlling a stud welding device
DE3372450D1 (en) * 1983-03-05 1987-08-20 Weld Equip Bv Automatically controlled arc-welding device for welding tie elements to a work piece

Also Published As

Publication number Publication date
FR1597996A (en) 1970-06-29
DE1816785A1 (en) 1969-07-24
GB1206730A (en) 1970-09-30
NL6818564A (en) 1969-06-24

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