KR950026605A - Output control device and control method of short-circuit arc welding machine - Google Patents

Output control device and control method of short-circuit arc welding machine Download PDF

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Publication number
KR950026605A
KR950026605A KR1019940006076A KR19940006076A KR950026605A KR 950026605 A KR950026605 A KR 950026605A KR 1019940006076 A KR1019940006076 A KR 1019940006076A KR 19940006076 A KR19940006076 A KR 19940006076A KR 950026605 A KR950026605 A KR 950026605A
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South Korea
Prior art keywords
arc
short
circuit
voltage
calculating
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KR1019940006076A
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Korean (ko)
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KR960004790B1 (en
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양천석
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김회수
금성기전 주식회사
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Publication of KR950026605A publication Critical patent/KR950026605A/en
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Publication of KR960004790B1 publication Critical patent/KR960004790B1/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00Arc welding or cutting
    • B23K9/10Other electric circuits therefor; Protective circuits; Remote controls
    • B23K9/1006Power supply
    • B23K9/1043Power supply characterised by the electric circuit
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00Arc welding or cutting
    • B23K9/095Monitoring or automatic control of welding parameters
    • B23K9/0953Monitoring or automatic control of welding parameters using computing means

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

Abstract

본 발명은 단락이행형 아크용접기의 출력제어장치 및 제어방법에 관한 것으로, 용접전류설정값에 따라 아크 및 단락시에 각각에 대응하는 리액턴스 값을 설정하여 보상하도록 단락시의 리액턴스 보상분 및 단락시의 전류변화율에 따라 단락시 전압제어 커멘드를 연산하고, 아크시에는 아크전압, 아크시의 리액턴스 보상분 및 아크시의 전류변화율에 따라 아크시 전압제어 커멘드틀 연산하며, 단락이나 아크시애 각각에 해당하는 전압제어 커멘드를 선택하여, 아크중에 급격한 부하전류의 하강 발생을 방지하며, 작업자의 손떨림나 또는 모재가 불균일하여도 일정하개 가크/단락을 교번할 수 있으며, 이에따라 용접의 품질을 향상시킬 수 있는 효과가 있다.The present invention relates to an output control device and a control method of a short-circuit-type arc welder, wherein the reactance compensation at the short circuit and the short circuit are set so as to compensate by setting the corresponding reactance values at the arc and the short circuit according to the welding current set values. Calculate the voltage control command in case of short circuit according to the rate of change of current, calculate the voltage control command in case of arc voltage, reactance compensation in case of arc, and the current change rate of arc in case of arc. By selecting the appropriate voltage control command, it prevents the sudden drop of load current during the arc, and even if the operator shakes or even the base material is uneven, it can alternately lower the gaps / shorts, thereby improving the quality of welding. It has an effect.

Description

단락이행형 아크용접기의 출력제어장치 및 제어방법Output control device and control method of short-circuit arc welding machine

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제2도는 제1도의 단락이행형 아크 용접시의 전압, 전류파형도.2 is a diagram of voltage and current waveforms in the short-circuit arc welding of FIG.

제3도는 본 발명에 의한 단락이행형 아크용접기의 출력제어장치의 구성도.3 is a configuration diagram of an output control apparatus for a short-circuit-type arc welder according to the present invention.

제4도는 제3도의 단락이행형 아크용접시의 전압, 전류파형도.4 is a voltage and current waveform diagram in the short-circuit arc welding of FIG.

Claims (2)

사용교류를 다단계를 거쳐, 정류 및 평활한 후 저전압의 직류로 만들어 직류리액터를 퉁해 토치와 모재간에 인가하는 전원부와, 단락 및 아크가 일정하게 교번하도록 제어하는 제어부와, 와이어를 토치에 공급하는 와이어 송급부로 구성된 단락이행형 아크용접기의 출력제어장치에 있어서, 상기 제어부는 단락시에 용접전류 설정값에 따른 단락전압을 연산하기 위한 단락전압연산부와, 단락시의 리액턴스 보상분을 선택하기 위한 단락시 리액턴스보상 선택부와, 단락 또는 아크시의 전류변화율을 연산하기 위한 전류변화율 연산부와, 상기 단락전압, 단락시의 리액턴스 보상분 및 단락시의 전류변화율에 따라 단락시 전압제어 커멘드를 연산하기 위한 단락시 전압제어 커멘드 설정부와, 아크시에 용접전류 설정값에 따른 아크전압을 연산하기 위한 아크전압연산부와, 아크시의 리액턴스 보상분을 선택하기 위한 아크시 리액턴스보상 선택부와, 상기 아크전압, 아크시의 리액턴스 보상분 및 아크시의 전류변화율에 따라 아크시 전압제어 커맨드를 연산하기 위한 아크시 전압제어 커멘드 연산부와, 단락이나 아크시에 이에 해당하는 전압제어 커멘드를 선택하기 위한 단락/아크 절환부를 포함하여 구성된 것을 특징으로 하는 단락이행형 아크용접기의 출력제어장치.After commutation and smoothing through multi-stage operation, a low-voltage direct current is applied to the torch and the base material through a direct current reactor, a control unit that controls the short circuit and the arc to be alternated, and a wire to supply the torch to the torch. In the output control device of a short-circuit type arc welding machine composed of a supply unit, the control unit includes a short-circuit voltage calculating unit for calculating a short-circuit voltage according to the welding current set value at the time of short-circuit, and a short-circuit for selecting reactance compensation at the short-circuit. A time reactance compensation selecting section, a current change rate calculating section for calculating a current change rate during a short circuit or an arc, and a voltage control command for calculating a short circuit voltage control command according to the short circuit voltage, reactance compensation during a short circuit, and a current change rate during a short circuit. Voltage control command setting section during short-circuit and arc voltage for calculating arc voltage according to welding current setting value during arcing An arc for calculating an arc voltage control command according to the voltage calculation unit, an arc reactance compensation selecting unit for selecting the reactance compensation for the arc, and the arc voltage, the reactance compensation for the arc, and the current change rate of the arc. And a short-circuit arc switch for selecting a voltage control command corresponding to a short-circuit or an arc. 사용교류를 다단계를 거쳐, 정류 및 평활한 후 저전압을 직류로 만들어 직류리액터를 통해 토치와 모재간에 인가하며, 별도의 와이어 송급장치에 의해 용재인 와이어를 토치에 공급하여 모재를 용접하는 단락이행형 아크용접기의 출력제어장치의 제어방법에 있어서, 단자시의 단락전압, 리액턴스 보상분 및 단락시의 전류변화율에 따라 단락시 전압제어 커멘드를 연산하고, 아크시에는 아크전압, 아크시의 리액턴스 보상분 및 아크시의 전류변화율에 따라 아크시 전압제어 커멘드를 연산하며, 단락이나 아크시에 각각에 해당하는 전압제어 커멘드를 선택하여 아크 및 단락시에 각각에 대응하는 출력값을 갖도록 하는 것을 특징으로 하는 단락이행형 아크용접기의 출력제어장치의 제어방법.After commutation and smoothing, the low voltage is made into DC and applied between the torch and the base metal through the DC reactor, and the wire is supplied to the torch by a separate wire feeder to weld the base material. In the control method of the output control device of the arc welder, the short-circuit voltage at the terminal, the reactance compensation at the terminal, and the voltage change command at the short-circuit are calculated according to the current change rate at the short-circuit, and the arc voltage at the arc, and the reactance compensation at the arc. And calculating an arc voltage control command according to the current change rate during arcing, and selecting a voltage control command corresponding to each of a short circuit and an arc, so as to have an output value corresponding to each of the arc and short circuits. Control method of output control device of transition arc welding machine. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940006076A 1994-03-25 1994-03-25 Capacity control apparatus and method of an arc welding machine KR960004790B1 (en)

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Application Number Priority Date Filing Date Title
KR1019940006076A KR960004790B1 (en) 1994-03-25 1994-03-25 Capacity control apparatus and method of an arc welding machine

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Application Number Priority Date Filing Date Title
KR1019940006076A KR960004790B1 (en) 1994-03-25 1994-03-25 Capacity control apparatus and method of an arc welding machine

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KR950026605A true KR950026605A (en) 1995-10-16
KR960004790B1 KR960004790B1 (en) 1996-04-13

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