GB1388877A - Device for controlling the movement of a welding electrode along the butt of adjacent parts being welded - Google Patents

Device for controlling the movement of a welding electrode along the butt of adjacent parts being welded

Info

Publication number
GB1388877A
GB1388877A GB5555372A GB5555372A GB1388877A GB 1388877 A GB1388877 A GB 1388877A GB 5555372 A GB5555372 A GB 5555372A GB 5555372 A GB5555372 A GB 5555372A GB 1388877 A GB1388877 A GB 1388877A
Authority
GB
United Kingdom
Prior art keywords
butt
electrode
devices
shapers
weld
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
GB5555372A
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.)
INST AVTOMATIKI MIN PRIBOROSTR
SREDSTV AVTOM I SYSTEM UPRAVLE
Original Assignee
INST AVTOMATIKI MIN PRIBOROSTR
SREDSTV AVTOM I SYSTEM UPRAVLE
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 INST AVTOMATIKI MIN PRIBOROSTR, SREDSTV AVTOM I SYSTEM UPRAVLE filed Critical INST AVTOMATIKI MIN PRIBOROSTR
Priority to GB5555372A priority Critical patent/GB1388877A/en
Publication of GB1388877A publication Critical patent/GB1388877A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
    • G21F9/28—Treating solids
    • G21F9/34—Disposal of solid waste
    • 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
    • B23K9/12—Automatic feeding or moving of electrodes or work for spot or seam welding or cutting
    • B23K9/127—Means for tracking lines during arc welding or cutting
    • B23K9/1272—Geometry oriented, e.g. beam optical trading
    • B23K9/1274—Using non-contact, optical means, e.g. laser means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q35/00—Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually
    • B23Q35/04—Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually using a feeler or the like travelling along the outline of the pattern, model or drawing; Feelers, patterns, or models therefor
    • B23Q35/08—Means for transforming movement of the feeler or the like into feed movement of tool or work
    • B23Q35/12—Means for transforming movement of the feeler or the like into feed movement of tool or work involving electrical means
    • B23Q35/127—Means for transforming movement of the feeler or the like into feed movement of tool or work involving electrical means using non-mechanical sensing
    • B23Q35/128—Sensing by using optical means

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Optics & Photonics (AREA)
  • Geometry (AREA)
  • Plasma & Fusion (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)

Abstract

1388877 Welding by fusion INSTITUT AVTOMATIKI MINISTERSTVA PRIBOROSTROENIA SREDSTV AVTOMATIZATSII I SYSTEM UPRAVLENIA SSSR 1 Dec 1972 55553/72 Heading B3R [Also in Division G3] An electrode 3 in seam welding apparatus is automatically guided to follow a butt 2 by a system in which the butt is detected photoelectrically by a device 1 connected to the electrode carriage. A projected light beam is reflected from the plates 4, 5 in the vicinity of the butt and imaged at an aperture which is scanned by a rotating slotted disc. The resulting output from the photo-cell is shown in Fig. 3a in which the first dip indicates the butt. This signal is shaped at 6 to produce Fig. 3b; T1 equals T2 when the electrode is centralized. The output of 6 is fed to two further signal shapers 7, 8 whose outputs are positive and negative pulses which are summed at 10 (the sum should be zero) and the result integrated at 11 to produce a voltage which is proportional to the electrode position error. This error signal is fed through a logic unit 14 to a controller 12 for an actuator 13 which positions the electrode carriage. A similar arrangement comprising a detector 16 and shaping and integrating circuits 17 ... 20 looks at the finished weld and overrides the first system, by logic 14, if the weld is incorrectly positioned. The detector 1 also determines the width of the butt and adjusts the welding current accordingly, by unspecified devices 21 ... 23. Also, the width of the weld, detected by 16, is used to control the feed speed of filler wire, by devices 24 ... 26. The action of all the control systems are suspended by an "inhibit" network 27 ... 30 in the event of spurious signals such as that constituting the second dip in Fig. 3a. Logic circuit 27 receives signals from the shapers 7, 8 (also from shapers 17, 18 by connections not shown) and from a "counter" 28. This determines when a dip occurs at a time when a plate is being scanned (i.e. during T2, Fig. 3b) and operates a flip-flop 29 controlling an inhibit switch 30. The circuits of the various devices are illustrated in Fig. 2 (not shown); in the main they comprise transistor bi-stable devices.
GB5555372A 1972-12-01 1972-12-01 Device for controlling the movement of a welding electrode along the butt of adjacent parts being welded Expired GB1388877A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5555372A GB1388877A (en) 1972-12-01 1972-12-01 Device for controlling the movement of a welding electrode along the butt of adjacent parts being welded

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5555372A GB1388877A (en) 1972-12-01 1972-12-01 Device for controlling the movement of a welding electrode along the butt of adjacent parts being welded

Publications (1)

Publication Number Publication Date
GB1388877A true GB1388877A (en) 1975-03-26

Family

ID=10474257

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5555372A Expired GB1388877A (en) 1972-12-01 1972-12-01 Device for controlling the movement of a welding electrode along the butt of adjacent parts being welded

Country Status (1)

Country Link
GB (1) GB1388877A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2368078A1 (en) * 1976-10-16 1978-05-12 Hoesch Werke Ag METHOD AND DEVICE FOR AUTOMATIC REGULATION D
GB2180183A (en) * 1985-07-31 1987-03-25 Mitsubishi Electric Corp Automatic welding machine correcting for a variable groove width

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2368078A1 (en) * 1976-10-16 1978-05-12 Hoesch Werke Ag METHOD AND DEVICE FOR AUTOMATIC REGULATION D
GB2180183A (en) * 1985-07-31 1987-03-25 Mitsubishi Electric Corp Automatic welding machine correcting for a variable groove width
US4728774A (en) * 1985-07-31 1988-03-01 Mitsubishi Denki Kabushiki Kaisha Automatic welding machine correcting for a varible groove width
GB2180183B (en) * 1985-07-31 1989-09-06 Mitsubishi Electric Corp Automatic welding machine correcting for a variable groove width

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee