KR200198961Y1 - Electric current control device for arc welding machine - Google Patents

Electric current control device for arc welding machine Download PDF

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Publication number
KR200198961Y1
KR200198961Y1 KR2020000011091U KR20000011091U KR200198961Y1 KR 200198961 Y1 KR200198961 Y1 KR 200198961Y1 KR 2020000011091 U KR2020000011091 U KR 2020000011091U KR 20000011091 U KR20000011091 U KR 20000011091U KR 200198961 Y1 KR200198961 Y1 KR 200198961Y1
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South Korea
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current
scr
current control
welding machine
control device
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KR2020000011091U
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Korean (ko)
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정광직
김광열
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정광직
김광열
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Priority to KR2020000011091U priority Critical patent/KR200198961Y1/en
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    • 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
    • B23K9/0732—Stabilising of the arc current
    • 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
    • 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

Abstract

본 고안은 용융온도가 높은 재질에 대해서는 스파크세기가 강해지도록 전류를 높혀주고 용융온도가 낮은 재질에 대해서는 스파크세기가 약해지도록 전류를 낮추어줌으로써 작업효율을 향상시킬 수 있는 용접기의 전류조절장치에 관한 것으로, 본 고안에 따르면 본체의 용접기에 연결된 용접건에 전류제어회로를 연결하고 전류조절 노브(knob)를 부착하여 모재의 용융온도에 따라 상기 조절노브를 조작함으로써 모재에 인가되는 전류를 미세하게 조절할 수 있다.The present invention relates to a current control device of a welding machine that can improve the work efficiency by increasing the current to increase the spark strength for materials with high melting temperature and to reduce the spark strength for materials with low melting temperature. According to the present invention, by connecting the current control circuit to the welding gun connected to the welding machine of the main body and attaching a current adjusting knob (knob) to operate the control knob according to the melting temperature of the base material to finely control the current applied to the base material have.

Description

용접기의 전류조절장치{electric current control device for ARC welding machine}Electric current control device for ARC welding machine

본 고안은 용접기의 전류조절장치에 관한 것으로써, 더욱 상세하게는 용융온도가 높은 모재에 대해서는 인가되는 스파크세기가 강해지도록 전류를 높혀주고 용융온도가 낮은 모재에 대해서는 인가되는 스파크세기가 약해지도록 전류를 낮추어줌으로써 용접작업을 수월히 하여 작업효율을 향상시킬 수 있는 용접기의 전류조절장치에 관한 것이다.The present invention relates to a current control device of the welding machine, more specifically, to increase the current so that the spark strength applied to the base material having a high melting temperature, and to reduce the spark strength applied to a base material having a low melting temperature It relates to a current control device of the welding machine that can improve the work efficiency by lowering the welding work easier.

종래에는 전류조절기를 이용하여 전류를 조절하는 경우 용접기 외부에서 핸들을 이용하여 코어에 구성되어 있는 1차 및 2차코일사이로 전류조절기 선단을 서서히 진입시키게 되면 전류조절기 선단의 코어편에 의해 전류의 흐름이 차단되면서 양코일사이에서 발생되는 자기장의 흐름이 변하게 된다.Conventionally, in the case of adjusting the current by using the current regulator, if the current controller tip is slowly entered between the primary and secondary coils configured in the core by using the handle from the outside of the welder, the current flows by the core piece of the current regulator tip. As this is blocked, the flow of magnetic field generated between both coils is changed.

즉, 코어로부터 발생되는 전류의 세기를 전류조절기를 양 코일사이에서의 진퇴 이동거리를 조절하는 것에 의해 조절하는 것이다.That is, the strength of the current generated from the core is controlled by adjusting the retraction moving distance between both coils.

그러나, 이와 같은 종래의 전류조절방식은 기계식으로 되어 있어 모재의 용융온도에 따른 미세한 전류조절이 효율적이지 못하였을 뿐만 아니라, 전류조절이 필요한 경우 용접기 본체와 모재사이를 작업자가 분주히 돌아다니면서 전류조절을 행해야하는 불편함이 뒤따랐다.However, such a conventional current control method is mechanical, so that not only the minute current control according to the melting temperature of the base material is efficient, but also the current control is performed by the operator walking around the main body of the welder and the base material when current control is required. This was followed by inconvenience.

따라서, 본 고안은 이와같은 문제점을 개선하기 위하여 이루어진 것으로써, 본체의 용접기에 연결된 용접건에 신규한 전류조절회로를 연결하고 전류조절 노브(knob)를 부착하여 모재의 용융온도에 따라 상기 조절노브를 조작함으로써 모재에 인가되는 전류를 미세하게 조절할 수 있는 용접기의 전류조절장치를 제공하는데 그 목적이 있다.Therefore, the present invention is made to improve such a problem, by connecting a new current control circuit to the welding gun connected to the welding machine of the main body and attaching a current adjusting knob (knob) to the control knob according to the melting temperature of the base material It is an object of the present invention to provide a current control device of the welding machine that can finely control the current applied to the base material by operating the.

도 1은 본 고안의 전류조절장치회로도이다.1 is a circuit diagram of a current regulator of the present invention.

상기 목적을 달성하기 위한 본 고안의 용접기의 전류조절장치는, v상에 연결된 전원선에는 SCR(200)의 애노드단자(202)가 연결되고, 이 SCR(200)의 캐소드전극(203)은 또 다른 SCR(300)의 애노드단자(302)와 연결되며, 상기 SCR(200)의 애노드단자(202)는 SCR(300)의 캐소드단자(303)에 연결되고, SCR(300)의 애노드단자(302)는 SCR(200)의 캐소드단자(203)에 연결된 상태에서 그 게이트단자(201)(301)들이 u, v상의 전압을 인가받아 코일의 권선수에 따라 값이 변환되는 PT 트랜스(400)로부터의 출력값을 9번, 7번, 3번 및 6번 접속점을 통해 인가받아 온(ON) 혹은 오프(OFF) 동작하도록 SCR(200)(300)이 구성되고, 용접건에 부착된 조절노브는 인쇄회로기판상의 29번 및 30번 접속점을 통해 회로에 인가되는 전류를 조절할 수 있도록 조작되며, 조절노브에 의해 조작되는 전류제어값은 전류조절부(600)에서 전류가 조절된 후 회로상의 1번 및 2번 접속점을 통해 SCR(200)(300)에 인가된 후 출력 트랜스(500)를 통해 용접봉에 출력되도록 구성된 것을 특징으로 한다.In order to achieve the above object, the current control device of the welder of the present invention has an anode terminal 202 of the SCR 200 connected to a power line connected to v phase, and the cathode electrode 203 of the SCR 200 is further provided. It is connected to the anode terminal 302 of the other SCR 300, the anode terminal 202 of the SCR 200 is connected to the cathode terminal 303 of the SCR 300, the anode terminal 302 of the SCR 300 ) Is from the PT transformer 400 whose gate terminals 201 and 301 are connected to the cathode terminal 203 of the SCR 200 and whose values are converted according to the number of turns of the coil by receiving voltages of u and v phases. SCR (200) (300) is configured to operate on or off by receiving the output value of the through 9, 7, 7, 3 and 6 connection points, the control knob attached to the welding gun is printed It is operated to control the current applied to the circuit through the connection points 29 and 30 on the circuit board, and the current control value operated by the adjusting knob is controlled by the current control unit 60. After the current is adjusted at 0) is applied to the SCR 200, 300 through the first and second connection points on the circuit, it is characterized in that it is configured to be output to the electrode through the output transformer 500.

이하, 본 고안의 실시예를 첨부도면을 참조하여 상세히 설명한다.Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 고안의 전류조절장치회로도이다.1 is a circuit diagram of a current regulator of the present invention.

도 1에 있어서, 인쇄회로기판(100)의 전선의 접속점 1 - 14 까지는 입출력을 나타낸 것이고, 3, 6, 7 및 9번 접속점은 SCR(200)(300)의 게이트(201)(301)에 제어값을 출력하는 곳이다.In Fig. 1, connection points 1 to 14 of the wires of the printed circuit board 100 are shown as input and output, and connection points 3, 6, 7, and 9 are connected to the gates 201 and 301 of the SCRs 200 and 300. This is where the control value is output.

또한, 본 고안의 목적을 달성하기 위한 용접건에서의 전류조절제어값은 29번 및 30번 라인을 통해 입력되어 1번 및 2번 접속점에 조절된 전류값이 형성된다.In addition, the current regulation control value in the welding gun to achieve the object of the present invention is input through the lines 29 and 30 to form a regulated current value at the connection point 1 and 2.

본 고안의 전류조정장치는 위상제어를 이용하는 것으로서, v상에 연결된 전원선에는 SCR(200)의 애노드단자(202)가 연결되고, 이 SCR(200)의 캐소드전극(203)은 또 다른 SCR(300)의 애노드단자(302)와 연결되어 있다.The current adjusting device of the present invention uses phase control, and an anode terminal 202 of the SCR 200 is connected to a power line connected to v phase, and the cathode electrode 203 of the SCR 200 is connected to another SCR ( It is connected to the anode terminal 302 of 300.

또한, 상기 SCR(200)의 애노드단자(202)는 SCR(300)의 캐소드단자(303)에 연결되고, SCR(300)의 애노드단자(302)는 SCR(200)의 캐소드단자(203)에 연결되어 있다.In addition, the anode terminal 202 of the SCR 200 is connected to the cathode terminal 303 of the SCR 300, and the anode terminal 302 of the SCR 300 is connected to the cathode terminal 203 of the SCR 200. It is connected.

상기 SCR(200)(300)은 u, v상의 전압을 인가받아 코일의 권선수에 따라 값이 변환되는 PT 트랜스(400)로부터의 출력값을 9번, 7번, 3번 및 6번 접속점을 통해 게이트단자(201)(301)들이 인가받음으로써 온 혹은 오프동작한다.The SCRs 200 and 300 receive the output values from the PT transformer 400, which are converted according to the number of windings of the coil by receiving voltages u and v, through connection points 9, 7, 3, and 6. The gate terminals 201 and 301 operate on or off by being applied.

SCR은 게이트전류가 없을 때는 양방향 모두 오프상태로 있지만 게이트 트리거전류를 흘리면 정방향으로 도통되어 그 후 게이트 전류를 0으로 해도 도통상태를 유지하도록 설정되어 있다.The SCR is turned off in both directions when there is no gate current, but conducts in the forward direction when the gate trigger current flows, and is set to maintain the conduction state even when the gate current is zero.

단, 유지전류 이하로 되면 다시 오프상태로 된다.However, when it is below the holding current, it is turned off again.

또한, 용접건(700)에 부착된 조절노브(800)는 인쇄회로기판상의 29번 및 30번 라인을 통해 전류조절용 제어값을 회로에 인가하도록 조작된다.In addition, the adjusting knob 800 attached to the welding gun 700 is operated to apply a control value for current regulation to the circuit through lines 29 and 30 on the printed circuit board.

조절노브(800)에 의해 조작되는 전류제어값은 전류조절부(600)에서 전류가 조절되어 그 조절값이 회로상의 1번 및 2번 접속점에 형성되면, 이 접속점을 통해 SCR(200)(300)에 인가되고 출력 트랜스(500)를 통해 용접봉(900)에 출력됨으로써 용접봉(900)을 통해 발생되는 스파크의 세기가 달라지도록 한다.When the current control value manipulated by the adjusting knob 800 is adjusted by the current control unit 600 and the control value is formed at connection points 1 and 2 on the circuit, the SCR 200 and 300 are connected through this connection point. ) And is output to the electrode 900 through the output transformer 500 so that the intensity of the spark generated through the electrode 900 is changed.

이와 같이 구성된 본 고안의 용접기의 전류조절장치의 동작효과를 설명한다.It describes the operation effect of the current control device of the welder of the present invention configured as described above.

외부로부터 입력된 u, v상의 전압이 트랜스(400)에 인가되면 이 트랜스(400)에 구성된 1차 및 2차 코일의 권선수에 따라 전압값이 변환되고, 그 변환된 전압값이 트랜스(400) 2차코일측 7번, 8번, 5번, 6번, 13번 및 14번 접속점을 통해 SCR(200)의 게이트(201)에 인가됨과 동시에 SCR(200)의 캐소드 출력선 및 SCR(300)의 캐소드 출력선에 인가된다.When the u and v phase voltages input from the outside are applied to the transformer 400, the voltage value is converted according to the number of turns of the primary and secondary coils configured in the transformer 400, and the converted voltage value is converted into the transformer 400. ) Is applied to the gate 201 of the SCR 200 through the connection points 7, 8, 5, 6, 13, and 14 of the secondary coil side, and at the same time, the cathode output line of the SCR 200 and the SCR 300 Is applied to the cathode output line.

이와 같은 상태에서 SCR(200)(300)이 온 됨에 따라 형성된 전류값이 트랜스(500)의 1차코일에 인가되면 이 트랜스(500)의 1차 및 2차코일에 구성된 권선수에 따라 변환된 전압값으로 인해 형성된 전류가 용접봉(900)에 인가되어 스파크가 발생된다.In this state, when the current value formed as the SCR 200, 300 is turned on is applied to the primary coil of the transformer 500, the current is converted according to the number of turns configured in the primary and secondary coils of the transformer 500. The current formed due to the voltage value is applied to the electrode 900 to generate sparks.

이때, 용융되는 온도가 높거나 낮은 모재가 사용되는 경우에는 전류값도 상승 혹은 하강시켜서 스파크 세기를 강하게 혹은 약하게 하여야 하므로 용접건(700)에 부착된 조절노브(800)를 조작하게 된다.At this time, when a high melting temperature or a low base material is used, the current value may also be increased or decreased to increase or decrease the spark strength, thereby operating the control knob 800 attached to the welding gun 700.

따라서, 용접건(700)에 부착된 조절노브(800)에 연결된 29번 및 30번 라인을 통해 조절노브(800)에 의해 조작된 제어값이 회로에 입력되면 전류조절부(600)에 의해 전류값이 조절된 후 1번 및 2번 접속점을 통해 3번, 6번, 7번 및 9번 접속점에 인가된다.Accordingly, when a control value manipulated by the adjusting knob 800 is input to the circuit through lines 29 and 30 connected to the adjusting knob 800 attached to the welding gun 700, the current is controlled by the current adjusting unit 600. After the value is adjusted, it is applied to connection points 3, 6, 7, and 9 through connection points 1 and 2.

따라서, 이들 접속점을 통해 조절된 전류값이 각각의 SCR(200)(300)에 인가된 후 출력 트랜스(500)를 통해 용접봉(900)에 인가됨으로써 전류값에 상응하는 세기의 스파크가 발생되는 것이다.Therefore, the current values adjusted through these connection points are applied to the respective SCRs 200 and 300 and then applied to the electrode 900 through the output transformer 500 to generate sparks of intensity corresponding to the current values. .

상술한 바와 같이, 본 고안의 용접기의 전류조절장치에 따르면, 본체의 용접기에 연결된 용접건에 전류조절회로를 연결하고 전류조절 노브(knob)를 부착하여 모재의 용융온도에 따라 상기 조절노브를 조작함으로써 모재에 인가되는 전류를 미세하게 조절할 수 있어 작업효율을 향상시킬 수 있는 잇점이 있다.As described above, according to the current control device of the welder of the present invention, by connecting the current control circuit to the welding gun connected to the welding machine of the main body and attaching a current control knob (knob) to operate the control knob according to the melting temperature of the base material By doing so, it is possible to finely adjust the current applied to the base material, thereby improving work efficiency.

Claims (1)

v상에 연결된 전원선에는 SCR(200)의 애노드단자(202)가 연결되고, 이 SCR(200)의 캐소드전극(203)은 또 다른 SCR(300)의 애노드단자(302)와 연결되며, 상기 SCR(200)의 애노드단자(202)는 SCR(300)의 캐소드단자(303)에 연결되고, SCR(300)의 애노드단자(302)는 SCR(200)의 캐소드단자(203)에 연결된 상태에서 그 게이트단자(201)(301)들이 u, v상의 전압을 인가받아 코일의 권선수에 따라 값이 변환되는 PT 트랜스(400)로부터의 출력값을 9번, 7번, 3번 및 6번 접속점을 통해 인가받아 온 혹은 오프 동작하도록 SCR(200)(300)이 구성되고, 용접건(700)에 부착된 조절노브(800)는 인쇄회로기판상의 29번 및 30번 접속점을 통해 회로에 인가되는 전류를 조절할 수 있도록 조작되며, 조절노브(800)에 의해 조작되는 전류제어값은 전류조절부(600)에서 전류가 조절된 후 회로상의 1번 및 2번 접속점을 통해 SCR(200)(300)에 인가되고 출력 트랜스(500)를 통해 용접봉(900)에 출력되도록 구성된 것을 특징으로 하는 용접기의 전류조절장치.The anode terminal 202 of the SCR 200 is connected to the power line connected to v phase, and the cathode electrode 203 of the SCR 200 is connected to the anode terminal 302 of another SCR 300. The anode terminal 202 of the SCR 200 is connected to the cathode terminal 303 of the SCR 300, and the anode terminal 302 of the SCR 300 is connected to the cathode terminal 203 of the SCR 200. The gate terminals 201 and 301 are connected to the 9th, 7th, 3rd and 6th connection points with the output values from the PT transformer 400 whose values are converted according to the number of turns of the coil by receiving voltages u and v. SCR (200, 300) is configured to be applied on or off through the operation, the adjustment knob 800 attached to the welding gun 700 is a current applied to the circuit through the connection point 29 and 30 on the printed circuit board The current control value manipulated by the adjusting knob 800 is controlled through the connection points 1 and 2 on the circuit after the current is adjusted in the current adjusting unit 600. Applied to the CR (200) (300) and the current control device of the welding machine, characterized in that configured to be output to the electrode 900 through the output transformer (500).
KR2020000011091U 2000-04-19 2000-04-19 Electric current control device for arc welding machine KR200198961Y1 (en)

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