KR960021343A - Arc length controller - Google Patents

Arc length controller Download PDF

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Publication number
KR960021343A
KR960021343A KR1019940038967A KR19940038967A KR960021343A KR 960021343 A KR960021343 A KR 960021343A KR 1019940038967 A KR1019940038967 A KR 1019940038967A KR 19940038967 A KR19940038967 A KR 19940038967A KR 960021343 A KR960021343 A KR 960021343A
Authority
KR
South Korea
Prior art keywords
arc
circuit
frequency
voltage
output
Prior art date
Application number
KR1019940038967A
Other languages
Korean (ko)
Other versions
KR0136197B1 (en
Inventor
이왕하
백기남
Original Assignee
김만제
포항종합제철 주식회사
신창식
재단법인 산업과학기술연구소
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.)
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Publication date
Application filed by 김만제, 포항종합제철 주식회사, 신창식, 재단법인 산업과학기술연구소 filed Critical 김만제
Priority to KR1019940038967A priority Critical patent/KR0136197B1/en
Publication of KR960021343A publication Critical patent/KR960021343A/en
Application granted granted Critical
Publication of KR0136197B1 publication Critical patent/KR0136197B1/en

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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
    • B23K9/06—Arrangements or circuits for starting the arc, e.g. by generating ignition voltage, or for stabilising the arc
    • B23K9/073—Stabilising the arc
    • B23K9/0735—Stabilising of the arc length
    • 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
    • B23K9/09—Arrangements or circuits for arc welding with pulsed current or voltage
    • B23K9/091—Arrangements or circuits for arc welding with pulsed current or voltage characterised by the circuits
    • B23K9/093—Arrangements or circuits for arc welding with pulsed current or voltage characterised by the circuits the frequency of the pulses produced being modulatable
    • 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
    • B23K9/095—Monitoring or automatic control of welding parameters
    • B23K9/0956—Monitoring or automatic control of welding parameters using sensing means, e.g. optical
    • 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
    • B23K9/16—Arc welding or cutting making use of shielding gas
    • B23K9/167—Arc welding or cutting making use of shielding gas and of a non-consumable electrode

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

Abstract

토오치와 모재 사이에 공급되는 아아크 발생용 TIG 전원과 와이어와 모재 사이에 공급되는 와이어 가열용 전원을 가지는 핫 TIG 용접 장치에 적용되는 용접 아아크 길이 제어장치는, 모재와 토오치 사이의 아아크 발생 전압을 측정하는 아아크 전압 측정회로와, 샘플타이밍회로를 거친 와이어 가열전원의 주파수를 증배하기 위한 주파수 증배기와, 상기 주파수 증배기의 샘플림 주파수에 따라 아아크 전압 측정신호를 샘플링하는 샘플홀드 회로와, 상기 샘플링 신호와 기준전압 발생회로의 기준전압 출력을 비교하여 토오치 상하구동장치에 제어신호를 출력하는 전압비교회로를 포함한다.The welding arc length control device applied to a hot TIG welding device having a TIG power supply for arc generation supplied between the torch and the base material and a wire heating power supply supplied between the wire and the base material is an arc generation voltage between the base material and the torch. An arc voltage measurement circuit for measuring the voltage, a frequency multiplier for multiplying the frequency of the wire heating power source passed through the sample timing circuit, a sample hold circuit for sampling the arc voltage measurement signal according to the sample rim frequency of the frequency multiplier, And a voltage comparator for comparing the sampling signal with the reference voltage output of the reference voltage generating circuit and outputting a control signal to the torch up / down driving device.

Description

아아크 길이 제어장치Arc length controller

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 일반적인 아아크 용접장치의 전체 회로구성도,1 is a general circuit diagram of a typical arc welding device,

제2도는 종래의 아아크 길이 제어장치의 회로구성도,2 is a circuit configuration diagram of a conventional arc length control device,

제3도는 제2도의 동작타이밍도,3 is an operation timing diagram of FIG.

제4도는 종래 아아크 용접에서의 아아크 휘어짐을 설명하기 위한 도,4 is a view for explaining arc bending in conventional arc welding,

제5도는 본 발명의 아아크 길이 제어장치의 회로구성도,5 is a circuit configuration diagram of the arc length control device of the present invention,

제6도는 제5도의 주파수 증배기의 상세회로 구성도,6 is a detailed circuit diagram of the frequency multiplier of FIG.

제7도는 아아크 전압변동이 클 경우 종래에서의 제어 타이밍도,7 is a control timing diagram according to the related art when the arc voltage variation is large;

제8도는 아아크 전압변동이 클 경우 본 발명에서의 제어 타이밍도.8 is a control timing diagram in the present invention when the arc voltage variation is large.

Claims (2)

토오치와 모재 사이에 공급되는 아아크 발생용 TIG 전원과 와이어와 모재 사이에 공급되는 와이어 가열용 전원을 가지는 핫 TIG 용접 장치에 있어서, 모재와 토오치 사이의 아아크 발생전압을 측정하는 아아크 전압 측정회로와, 샘플타이밍회로를 거친 와이어 가열전원의 주파수를 증배하기 위한 주파수 증배기와, 상기 주파수증배기의 샘플링 주파수에 따라 아아크 전압 측정신호를 샘플링하는 샘플홀드 회로와, 상기 샘플링 신호와 기준전압 발생회로의 기준전압 출력을 비교하여 토오치 상하구동장치에 제어신호를 출력하는 전압비교회로를 포함하는 것을 특징으로 하는 아아크 길이 제어장치.In the hot TIG welding apparatus having a TIG power supply for arc generation supplied between the torch and the base material and a wire heating power supply supplied between the wire and the base material, an arc voltage measuring circuit for measuring the arc generation voltage between the base material and the torch. And a frequency multiplier for multiplying the frequency of the wire heating power source that has passed through the sample timing circuit, a sample hold circuit for sampling the arc voltage measurement signal according to the sampling frequency of the frequency multiplier, and the sampling signal and the reference voltage generator circuit. Ark length control device comprising a voltage comparison circuit for outputting a control signal to the torch vertical drive by comparing the reference voltage output of the. 제1항에 있어서, 상기 주파수 증배기는 와이어 전류 출력의 유무를 판단하기 위해 샘플타이밍 회로의 출력과 와이어 출력전류가 각각 RS 플립플롭의 세트 및 리세트 입력단자로 입력되게 연결하고, 상기 RS 플립플롭에 제공되는 클럭과 RS 플립플롭의 Q출력이 앤드게이트로 앤드링된 후 주파수 증배회로에서 주파수 증배되어 출력되게 연결하여 구성하는 것을 특징으로 하는 아아크 길이 제어장치.2. The frequency multiplier of claim 1, wherein the frequency multiplier connects the output of the sample timing circuit and the wire output current to be input to the set and reset input terminals of the RS flip-flop, respectively, to determine the presence or absence of a wire current output. An arc length control device comprising: a clock provided to a flop and a Q output of an RS flip-flop are connected to an AND gate, and then connected to the frequency multiplied output in a frequency multiplier circuit. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940038967A 1994-12-29 1994-12-29 Apparatus for controlling arc length KR0136197B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940038967A KR0136197B1 (en) 1994-12-29 1994-12-29 Apparatus for controlling arc length

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940038967A KR0136197B1 (en) 1994-12-29 1994-12-29 Apparatus for controlling arc length

Publications (2)

Publication Number Publication Date
KR960021343A true KR960021343A (en) 1996-07-18
KR0136197B1 KR0136197B1 (en) 1998-07-01

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Application Number Title Priority Date Filing Date
KR1019940038967A KR0136197B1 (en) 1994-12-29 1994-12-29 Apparatus for controlling arc length

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170334011A1 (en) * 2016-05-17 2017-11-23 Lincoln Global, Inc. Method and system to use combination filler wire feed and high intensity energy source for welding and arc suppression of a variable polarity hot-wire

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