JP6139285B2 - Arc welding machine - Google Patents

Arc welding machine Download PDF

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JP6139285B2
JP6139285B2 JP2013124278A JP2013124278A JP6139285B2 JP 6139285 B2 JP6139285 B2 JP 6139285B2 JP 2013124278 A JP2013124278 A JP 2013124278A JP 2013124278 A JP2013124278 A JP 2013124278A JP 6139285 B2 JP6139285 B2 JP 6139285B2
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welding
setting
value
set value
setting device
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JP2015000403A (en
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浩一 宮部
浩一 宮部
傑 宮
傑 宮
元紅 王
元紅 王
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Daihen Corp
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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
    • B23K9/10—Other electric circuits therefor; Protective circuits; Remote controls
    • B23K9/1087—Arc welding using remote control

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  • Arc Welding Control (AREA)

Description

本発明は、溶接電源に予め定めた複数の溶接条件を記憶し、記憶された複数の溶接条件のうち１つを遠隔制御器によって遠隔から選択、再生する技術に関するものである。   The present invention relates to a technique for storing a plurality of predetermined welding conditions in a welding power source, and remotely selecting and reproducing one of the stored welding conditions by a remote controller.

溶接電源の設定モード又は選択モードの切り換えを、遠隔制御器により遠隔から行うとき、遠隔制御器に設けたスイッチで行っていた。   When the setting mode or selection mode of the welding power source is switched remotely by the remote controller, the switch is provided on the remote controller.

図８、従来技術のアーク溶接機の接続図である。同図において、遠隔制御器ＲＥＣ（リモートコントロール器）は、溶接電流設定器ＩＲ、溶接電圧設定器ＶＲ及び単接点の設定・選択スイッチＳＷ５で形成し、溶接電流設定器ＩＲは予め定めたアナログ値の溶接電流設定値Ｉｒを設定して出力し、溶接電圧設定器ＶＲは予め定めたアナログ値の溶接電圧設定値Ｖｒを設定して出力し、設定・選択スイッチＳＷ５は、設定・選択信号Ｓｗ５を出力し、Ｈｉｇｈレベルのときは設定モード、Ｌｏｗレベルのときは選択モードになる。   FIG. 8 is a connection diagram of a conventional arc welder. In the figure, a remote controller REC (remote controller) is formed by a welding current setting device IR, a welding voltage setting device VR and a single contact setting / selecting switch SW5. The welding current setting device IR is a predetermined analog value. The welding current set value Ir is set and output, the welding voltage setter VR sets and outputs a predetermined analog welding voltage set value Vr, and the setting / selection switch SW5 sets the setting / selection signal Sw5. When the output is High level, the setting mode is selected, and when it is Low level, the selection mode is selected.

図８に示す従来の溶接電源ＷＧに設けられた溶接条件設定・選択回路ＷＳは、溶接電流設定スイッチＳＷ１、溶接電圧設定スイッチＳＷ２、溶接条件選択スイッチＳＷ３及び反転回路ＮＴで形成し、遠隔制御器ＲＥＣの設定・選択スイッチＳＷ５を設定モード（開放）にすると、選択・設定信号Ｓｗ５がＨｉｇｈレベルになり、溶接電流設定スイッチＳＷ１及び溶接電圧設定スイッチＳＷ２が導通状態になり、溶接電流設定器ＩＲによって設定したアナログ値の溶接電流設定値Ｉｒ及び溶接電圧設定器ＶＲによって設定したアナログ値の溶接電圧設定値Ｖｒを主制御回路ＳＣに入力する。   A welding condition setting / selection circuit WS provided in the conventional welding power source WG shown in FIG. 8 is formed by a welding current setting switch SW1, a welding voltage setting switch SW2, a welding condition selection switch SW3 and an inverting circuit NT, and is a remote controller. When the REC setting / selection switch SW5 is set to the setting mode (open), the selection / setting signal Sw5 is set to the high level, the welding current setting switch SW1 and the welding voltage setting switch SW2 are turned on, and the welding current setting unit IR The set analog current welding current set value Ir and the analog welding voltage set value Vr set by the welding voltage setter VR are input to the main control circuit SC.

主制御回路ＳＣは、選択・設定信号Ｓｗ５がＨｉｇｈレベルになると設定モードと認識し、入力された溶接電流設定値Ｉｒ及び溶接電圧設定値Ｖｒに基づいて主電源回路ＩＮＶの電力を制御する。続いて、遠隔制御器ＲＥＣの設定・選択スイッチＳＷ５を選択モード（閉路）にすると、設定・選択信号Ｓｗ５がＬｏｗレベルになり、溶接電流設定スイッチＳＷ１及び溶接電圧設定スイッチＳＷ２が遮断状態になると共に溶接条件選択スイッチＳＷ３は導通状態になり、図９に示す溶接電流設定器ＩＲに設けられた、目盛の溶接条件番号０乃至９の位置に相当する溶接電流設定値Ｉｒが主制御回路ＳＣに入力される。   The main control circuit SC recognizes the setting mode when the selection / setting signal Sw5 becomes High level, and controls the power of the main power supply circuit INV based on the input welding current setting value Ir and welding voltage setting value Vr. Subsequently, when the setting / selection switch SW5 of the remote controller REC is set to the selection mode (closed), the setting / selection signal Sw5 becomes low level, and the welding current setting switch SW1 and the welding voltage setting switch SW2 are cut off. The welding condition selection switch SW3 becomes conductive, and the welding current set value Ir corresponding to the position of the welding condition numbers 0 to 9 on the scale provided in the welding current setting device IR shown in FIG. 9 is input to the main control circuit SC. Is done.

主制御回路ＳＣは、選択・設定信号Ｓｗ５がＬｏｗレベルになると選択モードと認識し、図９示す遠隔制御器の溶接電流設定器ＩＲに設けた溶接条件番号（スクリーン図）の０乃至９の位置に相当する溶接電流設定値Ｉｒに基づいて、記憶されている複数の溶接条件のうち１つを選択して主電源回路ＩＮＶの電力を制御する。また、特許文献１には、上述の技術が開示されている。   The main control circuit SC recognizes the selection mode when the selection / setting signal Sw5 becomes Low level, and positions 0 to 9 of the welding condition numbers (screen diagram) provided in the welding current setting device IR of the remote controller shown in FIG. Is selected from among a plurality of stored welding conditions to control the power of the main power supply circuit INV. Patent Document 1 discloses the above-described technique.

特開２００７−９０３５６号公報JP 2007-90356 A

図８に示す遠隔制御器では、設定・選択スイッチを設けて設定モード又は選択モードのどちらかを選択するので、溶接電源と遠隔制御器との接続において、設定信号又は選択信号を送信するための信号線を一本追加する必要があり、設定・選択スイッチを設けていない従来の遠隔制御器とでは、ハード上での互換性が無くなり溶接電源と接続できないので、接続するには溶接電源の接続部の改良が必要となる。
そこで、本発明では上記の課題を解決するアーク溶接機を供給することを目的とする。 In the remote controller shown in FIG. 8, since the setting / selection switch is provided to select either the setting mode or the selection mode, the setting signal or the selection signal is transmitted in the connection between the welding power source and the remote controller. It is necessary to add one signal line, and the conventional remote controller without a setting / selection switch is not compatible with hardware and cannot be connected to the welding power source. Part improvement is required.
Therefore, an object of the present invention is to provide an arc welding machine that solves the above-described problems.

上述した課題を解決するために、請求項１の発明は、第１の設定器及び第２の設定器で形成し、前記第１の設定器は予め定めた第１の設定値を出力し、前記第２の設定器は予め定めた第２の設定値を出力する遠隔制御器と、負荷に電力を供給する主電源回路と前記第１の設定値及び前記第２の設定値に基づいて前記主電源回路の電力を制御する主制御回路とで形成する溶接電源と、を備えたアーク溶接機において、
前記主制御回路は、前記第１の設定値が予め定めた第１基準値未満のとき、前記第１の設定値及び前記第２の設定値に基づいて前記主電源回路の電力を制御し、前記第１の設定値が前記第１基準値以上のとき、前記第２の設定値に基づいて予め記憶されている複数の溶接条件のうち１つを選択し、前記選択した溶接条件に基づいて前記主電源回路の電力を制御する、ことを特徴とするアーク溶接機である。 In order to solve the above-described problem, the invention of claim 1 is formed by a first setter and a second setter, and the first setter outputs a first set value that is determined in advance. The second setter is based on a remote controller that outputs a predetermined second set value, a main power supply circuit that supplies power to a load, the first set value, and the second set value. In an arc welding machine comprising a welding power source formed with a main control circuit for controlling the power of the main power circuit,
The main control circuit controls the power of the main power supply circuit based on the first set value and the second set value when the first set value is less than a predetermined first reference value; When the first set value is greater than or equal to the first reference value, one of a plurality of pre-stored welding conditions is selected based on the second set value, and based on the selected welding condition An electric arc welder that controls electric power of the main power supply circuit.

請求項２の発明は、前記第１の設定器は、溶接電流設定値を設定する溶接電流設定器であり、前記第２の設定器は、溶接電圧設定値を設定する溶接電圧設定器であり、前記第１基準値は電流基準値である、ことを特徴とする請求項１に記載のアーク溶接機である。 According to a second aspect of the present invention, the first setter is a welding current setter that sets a welding current set value, and the second setter is a welding voltage setter that sets a welding voltage set value. The arc welding machine according to claim 1, wherein the first reference value is a current reference value.

請求項３の発明は、前記第１の設定器は、溶接電圧設定値を設定する溶接電圧設定器であり、前記第２の設定器は、溶接電流設定値を設定する溶接電流設定器であり、前記第１基準値は電圧基準値である、ことを特徴とする請求項１に記載のアーク溶接機である。 According to a third aspect of the present invention, the first setting device is a welding voltage setting device for setting a welding voltage setting value, and the second setting device is a welding current setting device for setting a welding current setting value. The arc welding machine according to claim 1, wherein the first reference value is a voltage reference value.

本発明のアーク溶接機では、設定モード又は選択モードのどちらかを選択するとき、遠隔制御器に設けた、第１の設定器（例えば、図２に示す溶接電流設定器）のボリュウムをスクリーン図の条件選択の位置に設定すると溶接電源は選択モードと認識するので、設定信号又は選択信号を送信するための信号線の追加が不要となり、従来の遠隔制御器とハード上で互換性が有り、接続するたに溶接電源の接続部の改良が不要になる。   In the arc welding machine of the present invention, when either the setting mode or the selection mode is selected, the volume of the first setting device (for example, the welding current setting device shown in FIG. 2) provided in the remote controller is shown as a screen diagram. Since the welding power source recognizes the selection mode when it is set to the condition selection position, it is not necessary to add a signal line for transmitting the setting signal or selection signal, and it is compatible with the conventional remote controller in hardware, In order to connect, it is not necessary to improve the connection part of the welding power source.

本発明の実施形態１に係るアーク溶接機の電気接続図である。It is an electrical connection diagram of the arc welder according to Embodiment 1 of the present invention. 本発明の遠隔制御器のスクリーン図である。It is a screen figure of the remote control of this invention. 実施形態１の動作を説明する波形図である。FIG. 6 is a waveform diagram for explaining the operation of the first embodiment. 本発明の実施形態２に係るアーク溶接機の電気接続図である。It is an electrical connection diagram of the arc welder according to Embodiment 2 of the present invention. 実施形態２の遠隔制御器のスクリーン図である。It is a screen figure of the remote controller of Embodiment 2. 本発明の実施形態３に係るアーク溶接機の電気接続図である。It is an electrical connection figure of the arc welding machine which concerns on Embodiment 3 of this invention. 実施形態３の遠隔制御器のスクリーン図である。It is a screen figure of the remote controller of Embodiment 3. 従来技術のアーク溶接機の電気接続図である。It is an electrical connection figure of the arc welding machine of a prior art. 従来技術の遠隔制御器のスクリーン図である。It is a screen figure of the remote controller of a prior art.

図１〜図３を参照して本発明の実施形態１の動作について説明する。
図１は、本発明の実施形態１に係るアーク溶接機の電気接続図である。同図において、図６に示す従来技術のアーク溶接機の電気接続図と同一符号の構成物は、同一動作を行うので説明は省略し、符号の相違する構成物についてのみ説明する。 The operation of the first embodiment of the present invention will be described with reference to FIGS.
FIG. 1 is an electrical connection diagram of an arc welder according to Embodiment 1 of the present invention. In the figure, the components having the same reference numerals as those in the electrical connection diagram of the prior art arc welder shown in FIG. 6 perform the same operations, and thus the description thereof will be omitted. Only components having different reference numerals will be described.

図２に示す実施形態１の遠隔制御器ＲＥは、第１の設定器を溶接電流設定器ＩＲとし、第２の設定器を溶接電圧設定器ＶＲとして形成し、溶接電流設定器ＩＲは予め定めたアナログ値の溶接電流設定値Ｉｒを設定して出力し、溶接電圧設定器ＶＲは予め定めたアナログ値の溶接電圧設定値Ｖｒを設定して出力する。そして、溶接電圧設定器ＶＲには、図２に示す溶接条件番号をスクリーン図で設けている。   The remote controller RE of Embodiment 1 shown in FIG. 2 forms a first setting device as a welding current setting device IR and a second setting device as a welding voltage setting device VR, and the welding current setting device IR is predetermined. The welding value setting value VR of the analog value set and output is set, and the welding voltage setter VR sets and outputs the welding voltage setting value Vr of a predetermined analog value. And the welding condition number shown in FIG. 2 is provided in the welding voltage setting device VR by the screen figure.

図１に示す溶接電源ＷＧに設けられた実施形態１の溶接条件設定・選択回路ＷＡ１は、溶接電流設定スイッチＳＷ１、溶接電圧設定スイッチＳＷ２、溶接条件選択スイッチＳＷ３、第１の反転回路ＮＴ１、第２の反転回路ＮＴ２、比較回路ＣＰ及び電流基準回路ＩＲＦで形成し、比較回路ＣＰは、溶接電流設定値Ｉｒの値が電流基準値Ｉｒｆ（第１基準値）の値より未満のとき比較信号ＣｐがＨｉｇｈレベルになり、溶接電流設定スイッチＳＷ１及び溶接電圧設定スイッチＳＷ２が導通状態になり、溶接電流設定器ＩＲによって設定した溶接電流設定値Ｉｒ及び溶接電圧設定器ＶＲによって設定した溶接電圧設定値Ｖｒを主制御回路ＳＣに入力する。   The welding condition setting / selection circuit WA1 of the first embodiment provided in the welding power source WG shown in FIG. 1 includes a welding current setting switch SW1, a welding voltage setting switch SW2, a welding condition selection switch SW3, a first inversion circuit NT1, 2 is formed by an inverting circuit NT2, a comparison circuit CP, and a current reference circuit IRF. The comparison circuit CP compares the comparison signal Cp when the welding current set value Ir is less than the current reference value Irf (first reference value). Becomes the High level, the welding current setting switch SW1 and the welding voltage setting switch SW2 become conductive, and the welding current setting value Ir set by the welding current setting device IR and the welding voltage setting value Vr set by the welding voltage setting device VR. Is input to the main control circuit SC.

主制御回路ＳＣは、第２の反転回路ＮＴ２からの第２の反転信号Ｎｔ２がＬｏｗレベルのとき、設定モードと認識し、入力される溶接電流設定値Ｉｒ及び溶接電圧設定値Ｖｒに基づいて主電源回路ＩＮＶの電力を制御する。   The main control circuit SC recognizes the setting mode when the second inversion signal Nt2 from the second inversion circuit NT2 is at the Low level, and based on the input welding current set value Ir and welding voltage set value Vr. The power of the power supply circuit INV is controlled.

比較回路ＣＰは、溶接電流設定値Ｉｒの値が電流基準値Ｖｒｆの値より以上のとき（図２に示す溶接電流のボリュウムが条件選択の位置まで回したとき）比較信号ＣｐがＬｏｗレベルになり、溶接電流設定スイッチＳＷ１及び溶接電圧設定スイッチＳＷ２が遮断状態になると共に溶接条件選択スイッチＳＷ３は導通状態になり、図２に示す溶接電圧設定器ＶＲに設けられた、目盛の溶接条件番号０乃至９の位置に相当する溶接電圧設定値Ｖｒが主制御回路ＳＣに入力される。   In the comparison circuit CP, when the value of the welding current set value Ir is greater than the value of the current reference value Vrf (when the volume of the welding current shown in FIG. 2 is turned to the condition selection position), the comparison signal Cp becomes Low level. The welding current setting switch SW1 and the welding voltage setting switch SW2 are turned off and the welding condition selection switch SW3 is turned on. The welding condition number 0 to the scale provided in the welding voltage setting device VR shown in FIG. A welding voltage set value Vr corresponding to position 9 is input to the main control circuit SC.

主制御回路ＳＣは、第２の反転回路ＮＴ２から出力される第２の反転信号Ｎｔ２がＨｉｇｈレベルのとき、選択モードと認識し、図２に示す遠隔制御器の溶接電圧設定器ＶＲに設けた溶接条件番号（スクリーン図）の０乃至９の位置に相当する溶接電圧設定値Ｖｒに基づいて、記憶されている複数の溶接条件のうち１つを選択し再生して主電源回路ＩＮＶの電力を制御する。   The main control circuit SC recognizes the selection mode when the second inversion signal Nt2 output from the second inversion circuit NT2 is at the high level, and is provided in the welding voltage setting unit VR of the remote controller shown in FIG. Based on the welding voltage setting value Vr corresponding to the positions 0 to 9 of the welding condition number (screen drawing), one of the stored welding conditions is selected and reproduced to generate the power of the main power supply circuit INV. Control.

図３は、実施形態１の動作を説明する波形図である。図３において、同図（Ａ）は、起動信号Ｔｓを示し、同図（Ｂ）は、溶接電流設定信号Ｉｒを示し、同図（Ｃ）は、比較信号Ｃｐを示し、同図（Ｄ）は、第１の反転信号Ｎｔ１を示し、同図（Ｅ）は、第２の反転信号Ｎｔ２を示す。   FIG. 3 is a waveform diagram for explaining the operation of the first embodiment. 3A shows the start signal Ts, FIG. 3B shows the welding current setting signal Ir, FIG. 3C shows the comparison signal Cp, and FIG. Represents the first inverted signal Nt1, and FIG. 5E shows the second inverted signal Nt2.

次に、図３の波形図を用いて動作について説明する。
図３に示す時刻ｔ＝ｔ１において、図３（Ｃ）に示す、比較信号ＣｐのＨｉｇｈレベルに応じて同図（Ｅ）に示す第２の反転信号Ｎｔ２がＬｏｗレベルになる。主制御回路ＳＣは、第２の反転信号Ｎｔ２がＬｏｗレベルのとき、設定モードと認識する。そして、図１に示す溶接電流設定スイッチＳＷ１及び溶接電圧設定スイッチＳＷ２が導通状態になると共に溶接条件選択スイッチＳＷ３は遮断状態になる。 Next, the operation will be described with reference to the waveform diagram of FIG.
At time t = t1 shown in FIG. 3, the second inverted signal Nt2 shown in FIG. 3E becomes the Low level according to the High level of the comparison signal Cp shown in FIG. The main control circuit SC recognizes the setting mode when the second inversion signal Nt2 is at the low level. Then, the welding current setting switch SW1 and the welding voltage setting switch SW2 shown in FIG. 1 are turned on, and the welding condition selection switch SW3 is turned off.

時刻ｔ＝ｔ１〜ｔ２において、溶接電流設定器ＩＲによって設定される溶接電流設定値Ｉｒ及び溶接電圧設定器ＶＲによって設定される溶接電圧設定値Ｖｒは主制御回路ＳＣに入力される。   At time t = t1 to t2, the welding current set value Ir set by the welding current setter IR and the welding voltage set value Vr set by the welding voltage setter VR are input to the main control circuit SC.

時刻ｔ＝ｔ２において、図３（Ａ）に示す起動信号ＴｓがＨｉｇｈレベルになると、主制御回路ＳＣは、入力された溶接電流設定値Ｉｒ及び溶接電圧設定値Ｖｒに基づいて主電源回路ＩＮＶの電力制御を開始する。   When the activation signal Ts shown in FIG. 3A becomes High level at time t = t2, the main control circuit SC determines the main power supply circuit INV based on the input welding current set value Ir and welding voltage set value Vr. Start power control.

時刻ｔ＝ｔ２〜ｔ３の期間中、主制御回路ＳＣは、入力された溶接電流設定値Ｉｒ及び溶接電圧設定値Ｖｒに基づいて主電源回路ＩＮＶの電力の制御を継続する。   During the period from time t = t2 to t3, the main control circuit SC continues to control the power of the main power supply circuit INV based on the input welding current set value Ir and welding voltage set value Vr.

時刻ｔ＝ｔ３において、図３（Ａ）に示す起動信号ＴｓがＬｏｗレベルになると、主制御回路ＳＣは、主電源回路ＩＮＶの電力制御を停止する。続いて、時刻ｔ＝ｔ４において、溶接電流設定値Ｉｒの値が電流基準値Ｉｒｆの値以上になると、同図（Ｃ）に示す比較信号ＣｐがＬｏｗレベルになり、溶接電流設定スイッチＳＷ１及び溶接電圧設定スイッチＳＷ２が遮断状態になる。そして、図（Ｅ）に示す第２の反転信号Ｎｔ２はＨｉｇｈレベルになり、主制御回路ＳＣは選択モードと認識する。そして、同図（Ｄ）に示す第１の反転信号Ｎｔ１はＨｉｇｈレベルになり溶接条件選択スイッチＳＷ３は導通状態になり、図２に示す溶接電圧設定器ＶＲに設けられた、目盛の溶接条件番号０乃至９位置に相当する溶接電圧設定値Ｖｒが主制御回路ＳＣに入力される。   At time t = t3, when the activation signal Ts shown in FIG. 3A becomes the Low level, the main control circuit SC stops the power control of the main power supply circuit INV. Subsequently, at time t = t4, when the welding current set value Ir becomes equal to or greater than the current reference value Irf, the comparison signal Cp shown in FIG. The voltage setting switch SW2 is turned off. Then, the second inverted signal Nt2 shown in FIG. (E) becomes High level, and the main control circuit SC recognizes it as the selection mode. Then, the first inversion signal Nt1 shown in FIG. 4D becomes High level, the welding condition selection switch SW3 becomes conductive, and the scale welding condition number provided in the welding voltage setting device VR shown in FIG. A welding voltage set value Vr corresponding to positions 0 to 9 is input to the main control circuit SC.

時刻ｔ＝ｔ４〜ｔ５において、溶接条件選択スイッチＳＷ３は導通し、図２に示す遠隔制御器の溶接電圧設定器ＶＲに設けた溶接条件番号（スクリーン図）の、例えば、２にツマミを設定すると２に相当する溶接電流設定値Ｉｒが主制御回路ＳＣに入力さる。   At time t = t4 to t5, the welding condition selection switch SW3 is turned on, and when a knob is set to, for example, 2 of the welding condition number (screen diagram) provided in the welding voltage setting device VR of the remote controller shown in FIG. A welding current set value Ir corresponding to 2 is input to the main control circuit SC.

時刻ｔ＝ｔ５において、図３（Ａ）に示す起動信号ＴｓがＨｉｇｈレベルになると、主制御回路ＳＣは、溶接条件番号２に相当する溶接電流設定値Ｉｒに基づいて記憶されている複数の溶接条件のうち１つを選択し再生して主電源回路ＩＮＶの電力制御を開始する。   When activation signal Ts shown in FIG. 3 (A) becomes High level at time t = t5, main control circuit SC makes a plurality of welds stored based on welding current set value Ir corresponding to welding condition number 2. One of the conditions is selected and reproduced to start the power control of the main power supply circuit INV.

時刻ｔ＝ｔ５以後において、主制御回路ＳＣは再生された溶接条件に基づいて主電源回路ＩＮＶの電力の制御を継続する。
上記より、設定モード又は選択モードのうち選択モードを選択するとき、遠隔制御器に設けた、溶接電流設定器（第１の設定器）のボリュウムをスクリーン図の条件選択の位置に設定すると選択モードになるので、設定信号又は選択信号を送信する信号線の追加が不要となり、溶接電源と接続するための改良が不要になる。
さらに、溶接条件の内容としては、溶接電流及び溶接電圧の他に、ミグ／マグ溶接を考慮したとき、パルス周期、パルス期間、ベース期間等も溶接条件として含む。 After time t = t5, the main control circuit SC continues to control the power of the main power supply circuit INV based on the regenerated welding conditions.
From the above, when the selection mode is selected from the setting mode or the selection mode, the volume of the welding current setting device (first setting device) provided in the remote controller is set to the condition selection position on the screen diagram. Therefore, it is not necessary to add a signal line for transmitting a setting signal or a selection signal, and an improvement for connecting to the welding power source is not necessary.
Furthermore, as the contents of the welding conditions, in addition to the welding current and the welding voltage, when considering MIG / MAG welding, a pulse period, a pulse period, a base period, and the like are included as welding conditions.

［実施の形態２］
図４は、実施の形態２のアーク溶接機の電気接続図である。同図において、図１に示す実施の形態１の電気接続図と同一符号は、同一動作を行うので説明は省略して相違する動作についてのみ説明する。 [Embodiment 2]
FIG. 4 is an electrical connection diagram of the arc welder of the second embodiment. In the figure, the same reference numerals as those in the electrical connection diagram of the first embodiment shown in FIG. 1 perform the same operations, and therefore the description thereof will be omitted and only different operations will be described.

図５に示す実施形態２の遠隔制御器ＲＥは、第１の設定器を溶接電圧設定器ＶＲとし、第２の設定器を溶接電流設定器ＩＲとして形成し、溶接電圧設定器ＶＲは予め定めたアナログ値の溶接電圧設定値Ｖｒを設定し、溶接電流設定器ＩＲは予め定めたアナログ値の溶接電流設定値Ｉｒを設定して出力する。そして、溶接電流設定器ＩＲには、図５に示す溶接条件番号をスクリーン図で設けている。 The remote controller RE of Embodiment 2 shown in FIG. 5 forms a first setting device as a welding voltage setting device VR and a second setting device as a welding current setting device IR, and the welding voltage setting device VR is predetermined. The welding voltage setting value Vr of the analog value is set, and the welding current setting device IR sets and outputs the welding current setting value Ir of a predetermined analog value. The welding current setting device IR is provided with the welding condition numbers shown in FIG.

図４に示す実施形態２の溶接電源ＷＧに設けられた溶接条件設定・選択回路ＷＡ２は、溶接電圧設定値Ｖｒの値が電圧基準値Ｖｒｆ（第１基準値）の値より未満のとき比較信号ＣｐがＨｉｇｈレベルになり、溶接電流設定スイッチＳＷ１及び溶接電圧設定スイッチＳＷ２が導通状態になり、溶接電流設定器ＩＲによって設定した溶接電流設定値Ｉｒ及び溶接電圧設定器ＶＲによって設定した溶接電圧設定値Ｖｒを主制御回路ＳＣに入力する。   The welding condition setting / selection circuit WA2 provided in the welding power source WG of the second embodiment shown in FIG. 4 is a comparison signal when the welding voltage setting value Vr is less than the voltage reference value Vrf (first reference value). Cp becomes High level, welding current setting switch SW1 and welding voltage setting switch SW2 become conductive, welding current setting value Ir set by welding current setting device IR and welding voltage setting value set by welding voltage setting device VR. Vr is input to the main control circuit SC.

主制御回路ＳＣは、第２の反転回路ＮＴ２から出力される第２の反転信号Ｎｔ２がＬｏｗレベルのとき、設定モードと認識する。そして、溶接電流設定値Ｉｒ及び溶接電圧設定値Ｖｒに基づいて主電源回路ＩＮＶの電力を制御する。   The main control circuit SC recognizes the setting mode when the second inversion signal Nt2 output from the second inversion circuit NT2 is at the low level. Then, the power of the main power supply circuit INV is controlled based on the welding current set value Ir and the welding voltage set value Vr.

比較回路ＣＰは、溶接電圧設定値Ｖｒの値が電圧基準値Ｖｒｆの値より以上のとき（図５に示す溶接電圧のボリュウムが条件選択の位置まで回したとき）比較信号ＣｐがＬｏｗレベルになり、溶接電流設定スイッチＳＷ１及び溶接電圧設定スイッチＳＷ２が遮断状態になる、と共に溶接条件選択スイッチＳＷ３は導通状態になり、図５に示す溶接電流設定器ＩＲに設けられた、目盛の溶接条件番号０乃至９位置に相当する溶接電流設定値Ｉｒが主制御回路ＳＣ入力される。   In the comparison circuit CP, when the value of the welding voltage set value Vr is greater than the value of the voltage reference value Vrf (when the volume of the welding voltage shown in FIG. 5 is turned to the condition selection position), the comparison signal Cp becomes Low level. The welding current setting switch SW1 and the welding voltage setting switch SW2 are turned off, and the welding condition selection switch SW3 is turned on, and the welding condition number 0 of the scale provided in the welding current setting device IR shown in FIG. A welding current set value Ir corresponding to positions 9 to 9 is input to the main control circuit SC.

主制御回路ＳＣは、比較信号ＣｐのＬｏｗレベルに応じて第２の反転回路ＮＴ２から入力される第２の反転信号Ｎｔ２がＨｉｇｈレベルになり選択モードと認識する。そして、図５に示す遠隔制御器の溶接電流設定器ＩＲに設けた溶接条件番号（スクリーン図）の０乃至９の位置に相当する溶接電流設定値Ｉｒに基づいて、記憶されている複数の溶接条件のうち１つを選択し再生して主電源回路ＩＮＶの電力を制御する。
上記より、設定モード又は選択モードのうち選択モードを選択するとき、遠隔制御器に設けた、溶接電圧設定器のボリュウムをスクリーン図の条件選択の位置に設定すると選択モードになるので、設定信号又は選択信号を送信する信号線の追加が不要となり、溶接電源と接続するための改良が不要になる。
さらに、溶接条件の内容としては、溶接電流及び溶接電圧の他に、ミグ／マグ溶接を考慮したとき、パルス周期、パルス期間、ベース期間等も溶接条件として含む。 The main control circuit SC recognizes the selection mode because the second inversion signal Nt2 input from the second inversion circuit NT2 becomes High level according to the Low level of the comparison signal Cp. Then, a plurality of stored weldings are stored based on the welding current set values Ir corresponding to the positions 0 to 9 of the welding condition numbers (screen diagrams) provided in the welding current setting unit IR of the remote controller shown in FIG. One of the conditions is selected and reproduced to control the power of the main power supply circuit INV.
From the above, when selecting the selection mode among the setting mode or the selection mode, if the volume of the welding voltage setting device provided in the remote controller is set to the condition selection position in the screen diagram, the selection mode is entered. It is not necessary to add a signal line for transmitting a selection signal, and an improvement for connecting to the welding power source is unnecessary.
Furthermore, as the contents of the welding conditions, in addition to the welding current and the welding voltage, when considering MIG / MAG welding, a pulse period, a pulse period, a base period, and the like are included as welding conditions.

図６は、実施の形態３のアーク溶接機の電気接続図である。同図において、図１に示す実施の形態１の電気接続図と同一符号は、同一動作を行うので説明は省略して相違する動作についてのみ説明する。 FIG. 6 is an electrical connection diagram of the arc welder of the third embodiment. In the figure, the same reference numerals as those in the electrical connection diagram of the first embodiment shown in FIG. 1 perform the same operations, and therefore the description thereof will be omitted and only different operations will be described.

図７に示す実施形態３の遠隔制御器ＲＩは、第１の設定器を溶接電流設定器ＩＲとし、第２の設定器をパルス電流設定器ＩＲ２として形成し、溶接電流設定器ＩＲは予め定めたアナログ値の溶接電流設定値Ｉｒを設定して出力し、パルス電流設定器ＩＲ２は予め定めたアナログ値のパルス電流設定値Ｉｒ２を設定して出力する。そして、パルス電流設定器ＩＲ２には、図７に示す溶接条件番号をスクリーン図で設けている。 The remote controller RI of the third embodiment shown in FIG. 7 forms a first setting device as a welding current setting device IR and a second setting device as a pulse current setting device IR2, and the welding current setting device IR is predetermined. The analog welding current set value Ir is set and output, and the pulse current setter IR2 sets and outputs a predetermined analog pulse current set value Ir2. The pulse current setter IR2 is provided with the welding condition numbers shown in FIG.

図６に示す遠隔制御器ＲＩは、溶接電流設定器ＩＲ、パルス電流設定器ＩＲ２で形成し、溶接電流設定器ＩＲは予め定めたアナログ値の溶接電流設定値Ｉｒを設定して出力し、パルス電流設定器ＩＲ２は予め定めたアナログ値のパルス電流設定値Ｖｒを設定して出力する。そして、パルス電流設定器ＩＲ２に溶接条件番号を設けている。   The remote controller RI shown in FIG. 6 is formed by a welding current setting device IR and a pulse current setting device IR2, and the welding current setting device IR sets and outputs a predetermined analog welding current setting value Ir, and outputs a pulse. The current setting unit IR2 sets and outputs a predetermined analog pulse current setting value Vr. And the welding condition number is provided in the pulse current setting device IR2.

図６に示す溶接条件設定・選択回路ＷＡ１は、比較回路ＣＰは、溶接電流設定値Ｉｒの値が電流基準値Ｉｒｆ（第１基準値）の値より未満のとき比較信号ＣｐがＨｉｇｈレベルになり、溶接電流設定スイッチＳＷ１及びパルス電流設定スイッチＳＷ４が導通状態になり、溶接電流設定器ＩＲによって設定した溶接電流設定値Ｉｒ及びパルス電流設定器ＩＲ２よって設定したパルス電流設定値Ｉｒ２を主制御回路ＳＣに入力する。   In the welding condition setting / selection circuit WA1 shown in FIG. 6, the comparison circuit CP is such that the comparison signal Cp becomes High level when the welding current set value Ir is less than the current reference value Irf (first reference value). The welding current setting switch SW1 and the pulse current setting switch SW4 are turned on, and the welding current setting value Ir set by the welding current setting device IR and the pulse current setting value Ir2 set by the pulse current setting device IR2 are used as the main control circuit SC. To enter.

主制御回路ＳＣは、第２の反転回路ＮＴ２からの第２の反転信号Ｎｔ２がＬｏｗレベルのとき、設定モードと認識し、入力される溶接電流設定値Ｉｒ及びパルス電流設定値Ｉｒ２に基づいて主電源回路ＩＮＶの出力電流を制御する。   The main control circuit SC recognizes the setting mode when the second inversion signal Nt2 from the second inversion circuit NT2 is at the Low level, and based on the input welding current set value Ir and pulse current set value Ir2 The output current of the power supply circuit INV is controlled.

比較回路ＣＰは、溶接電流設定値Ｉｒの値が電流基準値Ｖｒｆの値より以上のとき（図７に示す溶接電流のボリュウムが条件選択の位置まで回したとき）比較信号ＣｐがＬｏｗレベルになり、溶接電流設定スイッチＳＷ１及びパルス電流設定スイッチＳＷ４が遮断状態になると共に溶接条件選択スイッチＳＷ３は導通状態になり、図７に示すパルス電流設定器ＩＲ２に設けられた、目盛の溶接条件番号０乃至９位置に相当する溶接電圧設定値Ｖｒが主制御回路ＳＣに入力される。   In the comparison circuit CP, when the value of the welding current set value Ir is greater than the value of the current reference value Vrf (when the volume of the welding current shown in FIG. 7 is turned to the condition selection position), the comparison signal Cp becomes the low level. The welding current setting switch SW1 and the pulse current setting switch SW4 are turned off and the welding condition selection switch SW3 is turned on, and the welding condition number 0 to the scale provided in the pulse current setting device IR2 shown in FIG. A welding voltage set value Vr corresponding to position 9 is input to main control circuit SC.

主制御回路ＳＣは、第２の反転回路ＮＴ２から出力される第２の反転信号Ｎｔ２がＨｉｇｈレベルのとき、選択モードと認識し、図７に示す遠隔制御器のパルス電流設定器ＩＲ２に設けた溶接条件番号（スクリーン図）の０乃至９の位置に相当するパルス電流設定値Ｉｒ２に基づいて、記憶されている複数の溶接条件のうち１つを選択し再生して主電源回路ＩＮＶの出力電流を制御する。   The main control circuit SC recognizes the selection mode when the second inversion signal Nt2 output from the second inversion circuit NT2 is at the high level, and is provided in the pulse current setting device IR2 of the remote controller shown in FIG. Based on the pulse current setting value Ir2 corresponding to the position 0 to 9 of the welding condition number (screen diagram), one of the stored welding conditions is selected and reproduced to output current from the main power supply circuit INV. To control.

また、図７に示す遠隔制御器ＲＩの溶接電流設定器ＩＲに溶接条件番号を設け、パルス電流設定値Ｉｒ２の値が電流基準値Ｉｒｆの値より未満のとき、溶接電流設定値Ｉｒ及びパルス電流設定値Ｉｒ２に基づいて主電源回路ＩＮＶの出力電流を制御し、パルス電流設定値Ｉｒ２の値が電流基準値Ｉｒｆの値より以上のとき、溶接電流設定器ＩＲに設けた溶接条件番号（スクリーン図）の０乃至９の位置に相当する溶接電流設定値Ｉｒに基づいて、記憶されている複数の溶接条件のうち１つを選択し再生して主電源回路ＩＮＶの出力電流を制御してもよい。   Further, when a welding condition number is provided in the welding current setting device IR of the remote controller RI shown in FIG. 7 and the value of the pulse current setting value Ir2 is less than the current reference value Irf, the welding current setting value Ir and the pulse current are set. The output current of the main power supply circuit INV is controlled based on the set value Ir2, and when the pulse current set value Ir2 is greater than or equal to the current reference value Irf, the welding condition number provided in the welding current setter IR (screen diagram) ) Based on the welding current set value Ir corresponding to positions 0 to 9, one of the stored welding conditions may be selected and reproduced to control the output current of the main power supply circuit INV. .

また、上記の溶接条件設定・選択回路の機能を主制御回路に内蔵されているＣＰＵに新たなソフトを作成し、演算処理で行ってもよい。そして、図１に示す溶接電源の表示器ＬＥＤにより、遠隔制御器で選択した溶接条件の内容を表示してもよい。
さらに、実施形態３の溶接条件の内容としては、ＴＩＧ溶接の溶接電流、ベース電流及びパルス電流の他に、直流パルス又は交流パルスを考慮したとき、パルス周期、パルス期間、ベース期間、ＥＰ／ＥＮ比率等も溶接条件と含む。
。 Further, new software may be created in the CPU built in the main control circuit to perform the above-described welding condition setting / selection circuit functions and may be performed by arithmetic processing. And you may display the content of the welding conditions selected with the remote controller with the indicator LED of the welding power supply shown in FIG.
Furthermore, the contents of the welding conditions of Embodiment 3 include a pulse period, a pulse period, a base period, EP / EN when considering a DC pulse or an AC pulse in addition to the welding current, base current, and pulse current of TIG welding. The ratio and the like are also included in the welding conditions.
.

１ 溶接トーチ
２ 消耗性電極
３ 被加工物
４ 送給ロール
５ 非消耗性電極
ＡＣ 商用交流電源
ＣＰ 比較回路
ＮＴ 反転回路
ＮＴ１ 第１の反転回路
ＮＴ２ 第２の反転回路
ＩＮＶ 主電源回路
ＩＲ 溶接電流設定器
ＩＲ２ パルス電流設定器
ＩＲＦ 電流基準回路
ＬＥＤ 表示器
ＲＥ 遠隔制御器
ＲＩ 遠隔制御器
ＲＥＣ 遠隔制御器（スイッチ内蔵）
ＳＣ 主制御回路
ＳＷ１ 溶接電流設定スイッチ
ＳＷ２ 溶接電圧設定スイッチ
ＳＷ３ 溶接条件選択スイッチ
ＳＷ４ パルス電流設定スイッチ
ＳＷ５ 設定・選択スイッチ
ＴＳ 起動スイッチ
ＶＲ 溶接電圧設定器
ＶＲＦ 電圧基準回路
ＷＧ 溶接電源
ＷＳ 溶接条件設定・選択回路（従来）
ＷＡ１ 溶接条件設定・選択回路（実施形態１、３）
ＷＡ２ 溶接条件設定・選択回路（実施形態２）
Ｃｐ 比較信号
Ｉｒ 溶接電流設定値
Ｉｒ２ パルス電流設定器
Ｉｒｆ 電流基準値
Ｎｔ 反転信号
Ｎｔ１ 第１の反転信号
Ｎｔ２ 第２の反転信号
Ｓｃ 主制御信号
Ｔｓ 起動信号
Ｖｒ 溶接電圧設定値
Ｖｒｆ 電圧基準値 DESCRIPTION OF SYMBOLS 1 Welding torch 2 Consumable electrode 3 Work piece 4 Feeding roll 5 Non-consumable electrode AC Commercial AC power supply CP Comparison circuit NT Inversion circuit NT1 1st inversion circuit NT2 2nd inversion circuit INV Main power supply circuit IR Welding current setting IR2 Pulse current setting device IRF Current reference circuit LED display RE Remote controller RI Remote controller REC Remote controller (built-in switch)
SC Main control circuit SW1 Welding current setting switch SW2 Welding voltage setting switch SW3 Welding condition selection switch SW4 Pulse current setting switch SW5 Setting / selection switch TS Start switch VR Welding voltage setting device VRF Voltage reference circuit WG Welding power supply WS Welding condition setting / selection Circuit (conventional)
WA1 Welding condition setting / selection circuit (Embodiments 1 and 3)
WA2 Welding condition setting / selection circuit (Embodiment 2)
Cp comparison signal Ir welding current set value Ir2 pulse current setter Irf current reference value Nt inverted signal Nt1 first inverted signal Nt2 second inverted signal Sc main control signal Ts start signal Vr welding voltage set value
Vrf voltage reference value

Claims (3)

第１の設定器及び第２の設定器で形成し、前記第１の設定器は予め定めた第１の設定値を出力し、前記第２の設定器は予め定めた第２の設定値を出力する遠隔制御器と、負荷に電力を供給する主電源回路と前記第１の設定値及び前記第２の設定値に基づいて前記主電源回路の電力を制御する主制御回路とで形成する溶接電源と、を備えたアーク溶接機において、
前記主制御回路は、前記第１の設定値が予め定めた第１基準値未満のとき、前記第１の設定値及び前記第２の設定値に基づいて前記主電源回路の電力を制御し、前記第１の設定値が前記第１基準値以上のとき、前記第２の設定値に基づいて予め記憶されている複数の溶接条件のうち１つを選択し、前記選択した溶接条件に基づいて前記主電源回路の電力を制御する、ことを特徴とするアーク溶接機 The first setter and the second setter are formed, the first setter outputs a predetermined first set value, and the second setter outputs a predetermined second set value. Welding formed by a remote controller for outputting, a main power supply circuit for supplying power to a load, and a main control circuit for controlling the power of the main power supply circuit based on the first set value and the second set value In an arc welding machine equipped with a power source,
The main control circuit controls the power of the main power supply circuit based on the first set value and the second set value when the first set value is less than a predetermined first reference value; When the first set value is greater than or equal to the first reference value, one of a plurality of pre-stored welding conditions is selected based on the second set value, and based on the selected welding condition An arc welding machine that controls power of the main power circuit. 前記第１の設定器は、溶接電流設定値を設定する溶接電流設定器であり、前記第２の設定器は、溶接電圧設定値を設定する溶接電圧設定器であり、前記第１基準値は電流基準値である、ことを特徴とする請求項１に記載のアーク溶接機。 The first setting device is a welding current setting device for setting a welding current setting value, the second setting device is a welding voltage setting device for setting a welding voltage setting value, and the first reference value is The arc welding machine according to claim 1, wherein the arc welding machine is a current reference value. 前記第１の設定器は、溶接電圧設定値を設定する溶接電圧設定器であり、前記第２の設定器は、溶接電流設定値を設定する溶接電流設定器であり、前記第１基準値は電圧基準値である、ことを特徴とする請求項１に記載のアーク溶接機。   The first setting device is a welding voltage setting device for setting a welding voltage setting value, the second setting device is a welding current setting device for setting a welding current setting value, and the first reference value is The arc welding machine according to claim 1, wherein the arc welding machine is a voltage reference value.
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