JP2007090409A - Display device of arc welding machine - Google Patents
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Abstract
Description
本発明は、アーク溶接機の各溶接条件を表示する表示装置に関するものである。 The present invention relates to a display device that displays each welding condition of an arc welder.
図５は、従来技術のアーク溶接機の表示装置の電気接続図である。同図において、溶接電源ＷＧはワイヤ２と被加工物３との間に電力を供給する主電源回路ＩＮＶと、予め定めた溶接電流設定値Ｉｒ及び予め定めた溶接電圧設定値Ｖｒに基づいて上記主電源回路ＩＮＶの電力を制御する主制御回路ＭＣと、溶接中のとき、負荷に供給する図示省略の溶接電流値及び溶接電圧値を表示し、溶接終了後は上記溶接電流設定値Ｉｒ及び前記溶接電圧設定値Ｖｒを表示する（例えば、７セグメントＬＥＤを用いた）表示器ＷＬＥＤと、時限機能を有し上記表示器ＷＬＥＤを制御する表示駆動回路ＩＤとで形成されている。
FIG. 5 is an electrical connection diagram of a display device of a conventional arc welder. In the figure, the welding power source WG is based on the main power source circuit INV for supplying power between the
リモートコントロール装置ＲＥは、可変抵抗器を用いた溶接電流設定器ＩＲ、溶接電圧設定器ＶＲ及びインチングスイッチＩＳとで形成され、溶接電源ＷＧに配線を用いて接続されている。上記溶接電流設定器ＩＲ及び溶接電圧設定器ＶＲは、上記溶接電源ＷＧから図示省略の配線を介して制御用電源の供給を受け、上記溶接電流設定器ＩＲの可変端子に設定されたアナログ値の溶接電流設定値Ｉｒ及び上記溶接電圧設定器ＶＲの可変端子に設定されたアナログ値の溶接電圧設定値Ｖｒを出力し、上記インチングスイッチＩＳはインチング信号Ｉｓを出力する。 The remote control device RE is formed of a welding current setting device IR, a welding voltage setting device VR and an inching switch IS using a variable resistor, and is connected to the welding power source WG using wiring. The welding current setter IR and the welding voltage setter VR are supplied with control power from the welding power source WG via a wiring (not shown), and have an analog value set in the variable terminal of the welding current setter IR. A welding current set value Ir and an analog welding voltage set value Vr set at a variable terminal of the welding voltage setter VR are output, and the inching switch IS outputs an inching signal Is.
図６は、従来技術の動作を説明する波形図である。同図において、同図（Ａ）は、起動信号Ｔｓを示し、同図（Ｂ）は、主制御信号Ｍｓを示し、同図（Ｃ）は、溶接条件信号Ｍｉを示し、同図（Ｄ）は、表示駆動信号Ｉｄを示す。続いて、上記図６の波形図を用いて動作について説明する。 FIG. 6 is a waveform diagram for explaining the operation of the prior art. In the same figure, (A) shows the start signal Ts, (B) shows the main control signal Ms, (C) shows the welding condition signal Mi, (D). Indicates the display drive signal Id. Next, the operation will be described with reference to the waveform diagram of FIG.
図６に示す時刻ｔ＝ｔ１において、同図（Ａ）に示す、起動信号ＴｓがＨｉｇｈレベルになると、主制御回路ＭＣは主電源駆動信号Ｍｃを出力し主電源回路ＩＮＶの出力制御を開始すると共に、同図（Ｂ）に示す主制御信号ＭｓをＨｉｇｈレベルにする。続いて、上記主制御信号ＭｓがＨｉｇｈレベルになると表示駆動回路ＩＤは、同図（Ｄ）に示す表示駆動信号ＩｄをＨｉｇｈレベルにして表示器ＷＬＥＤを点灯させる。 At time t = t1 shown in FIG. 6, when the activation signal Ts shown in FIG. 6A becomes high level, the main control circuit MC outputs the main power supply drive signal Mc and starts output control of the main power supply circuit INV. At the same time, the main control signal Ms shown in FIG. Subsequently, when the main control signal Ms becomes High level, the display drive circuit ID turns on the display WLED by setting the display drive signal Id shown in FIG.
時刻ｔ＝ｔ１〜ｔ２においては、主制御回路ＭＣは溶接電流設定値Ｉｒ及び溶接電圧設定値Ｖｒに基づいて上記主電源回路ＩＮＶの出力を制御すると共に溶接条件信号Ｍｉを表示器ＷＬＥＤに入力する。上記表示器ＷＬＥＤは上記溶接条件信号Ｍｉに基づいて負荷に供給する溶接電流値、溶接電圧値及び溶接プロセス（例えば、初期条件又は本条件等）を表示する。 At time t = t1 to t2, the main control circuit MC controls the output of the main power supply circuit INV based on the welding current set value Ir and the welding voltage set value Vr and inputs the welding condition signal Mi to the display WLED. . The indicator WLED displays a welding current value, a welding voltage value and a welding process (for example, an initial condition or a main condition) supplied to the load based on the welding condition signal Mi.
図６に示す時刻ｔ＝ｔ２において、同図（Ａ）に示す、起動信号ＴｓがＬｏｗレベルになると、主制御回路ＭＣは主電源回路ＩＮＶの出力制御を終了すると共に、同図（Ｂ）に示す主制御信号ＭｓをＬｏｗレベルにする。続いて、上記主制御信号ＭｓがＬｏｗレベルになると表示駆動回路ＩＤは同図（Ｃ）に示す、時限を開始して同図（Ｄ）に示す表示駆動信号Ｉｄを時限Ｔ２の期間をＨｉｇｈレベルにして、表示器ＷＬＥＤの点灯を継続させる。続いて、時刻ｔ＝ｔ２〜ｔ３の期間は、上記表示器ＷＬＥＤに溶接電流設定値Ｉｒ、溶接電圧設定値Ｖｒ及び溶接モード（例えば、溶接法又はワイヤ径等）を表示する。 At time t = t2 shown in FIG. 6, when the activation signal Ts shown in FIG. 6A becomes a low level, the main control circuit MC finishes the output control of the main power supply circuit INV, and FIG. The main control signal Ms shown is set to the Low level. Subsequently, when the main control signal Ms becomes the Low level, the display drive circuit ID starts the time period shown in FIG. 4C, and the display drive signal Id shown in FIG. Then, the lighting of the indicator WLED is continued. Subsequently, during a period of time t = t2 to t3, the welding current set value Ir, the welding voltage set value Vr, and the welding mode (for example, a welding method or a wire diameter) are displayed on the display WLED.
時刻ｔ＝ｔ３において、図６（Ｃ）に時限Ｔ２が終了すると表示駆動信号ＩｄをＬｏｗレベルして表示器ＷＬＥＤを消灯させる。 At time t = t3, when the time period T2 ends in FIG. 6C, the display drive signal Id is set to the low level to turn off the display WLED.
時刻ｔ＝ｔ４において、同図（Ａ）に示す、起動信号Ｔｓを予め定めた短期間Ｈｉｇｈレベルにすると、同図（Ｂ）に示す主制御信号Ｍｓも短期間Ｈｉｇｈレベルになり、上記主制御信号ＭｓがＨｉｇｈレベルになると表示駆動回路ＩＤはセットされて同図（Ｄ）に示す表示駆動信号Ｉｄが所定時間Ｈｉｇｈレベルになり表示器ＷＬＥＤを点灯させる。 At time t = t4, when the activation signal Ts shown in FIG. 5A is set to a high level for a short period of time, the main control signal Ms shown in FIG. When the signal Ms becomes High level, the display drive circuit ID is set, and the display drive signal Id shown in FIG. 4D becomes High level for a predetermined time to turn on the display WLED.
時刻ｔ＝ｔ４〜ｔ５の溶接待機中は、表示器ＷＬＥＤが点灯し溶接電流設定値、溶接電圧設定値及び溶接モードが確認できる。 During welding standby at time t = t4 to t5, the indicator WLED is turned on, and the welding current set value, welding voltage set value, and welding mode can be confirmed.
時刻ｔ＝ｔ５以後において、同図（Ａ）に示す、起動信号Ｔｓを再度Ｈｉｇｈレベルにすると、主制御回路ＭＣは主電源駆動信号Ｍｃを出力し主電源回路ＩＮＶの出力制御を再度開始すると共に、同図（Ｂ）に示す主制御信号ＭｓをＨｉｇｈレベルにする。このとき、表示駆動回路ＩＤは再度セットされて同図（Ｄ）に示す表示駆動信号ＩｄがＨｉｇｈレベルを継続し表示器ＷＬＥＤを点灯させ、溶接電流値、溶接電圧値及び溶接プロセスを表示する。 After the time t = t5, when the activation signal Ts shown in FIG. 5A is set to the high level again, the main control circuit MC outputs the main power supply drive signal Mc and restarts the output control of the main power supply circuit INV. Then, the main control signal Ms shown in FIG. At this time, the display drive circuit ID is set again, and the display drive signal Id shown in FIG. 4D continues to be at a high level, the indicator WLED is turned on, and the welding current value, welding voltage value, and welding process are displayed.
上述より、作業者が手元の溶接トーチに配設されているトーチスイッチＴＳによって、遠隔から消灯している表示器ＷＬＥＤを点灯できる。また、図示省略の溶接電源ＷＧの何等かの制御スイッチを押して表示駆動回路ＩＤをリセットさせれば表示器ＷＬＥＤを点灯できる。特許文献１には、上述した技術が開示されている。
As described above, the indicator WLED that has been turned off remotely can be turned on by the torch switch TS disposed on the welding torch at hand. Further, if the display drive circuit ID is reset by pressing any control switch of the welding power source WG (not shown), the indicator WLED can be turned on.
上述の従来技術において、溶接作業がトーチスイッチをオフにして溶接が終了したのち、所定時間が経過したとき表示器（７セグメントＬＥＤ）を消灯させて上記表示器（７セグメントＬＥＤ）の長寿命化を実現させていた。しかし、上記表示器が消灯し再度点灯させるときには、溶接電源の何等かの制御スイッチ等を新たに操作しないと上記表示器が点灯しないために作業者が溶接電源の置かれている場所に戻らなければならなかった。 In the above-described prior art, after the welding operation is completed with the torch switch turned off and welding is completed, the indicator (7-segment LED) is turned off when a predetermined time has elapsed, thereby extending the life of the indicator (7-segment LED). Was realized. However, when the indicator is turned off and turned on again, the operator must return to the place where the welding power source is located because the indicator will not light up unless some control switch or the like of the welding power source is newly operated. I had to.
また、上記改善策として、作業者が溶接トーチのトーチスイッチを押して、消灯している表示器を点灯させる方法もある。しかし、上記の方法ではワイヤと被加工物との間に無用な無負荷電圧が発生し、更に、上記ワイヤが送給されて溶接開始時のスタート性を悪くする。 As an improvement measure, there is a method in which the operator presses the torch switch of the welding torch to turn on the indicator that is turned off. However, in the above method, an unnecessary no-load voltage is generated between the wire and the workpiece, and further, the wire is fed to deteriorate the startability at the start of welding.
そこで、本発明では、上述した課題を解決するアーク溶接機の表示装置を提供することにある。 Then, in this invention, it is providing the display apparatus of the arc welding machine which solves the subject mentioned above.
上述した課題を解決するために、第１の発明は、負荷に予め定めた電力を供給する主電源回路と、起動／停止を指令するトーチスイッチと、作業者がトーチスイッチを押す時間が予め定めた判別時間以上のとき起動指令信号を出力し、上記判別時間未満のとき表示指令信号を出力する起動・表示判別回路と、上記起動指令信号が入力されると上記主電源回路を制御して出力を開始する主制御回路と、溶接条件を表示する表示器と、上記起動指令信号が入力されている期間中は上記表示器を点灯させ、上記起動指令信号が入力されていない期間中は消灯させ、上記表示指令信号が入力されると所定時間の間上記表示器を点灯させる表示駆動回路と、を具備したアーク溶接機の表示装置である。 In order to solve the above-described problem, the first invention is to predetermine a main power supply circuit for supplying predetermined power to a load, a torch switch for instructing start / stop, and a time for an operator to press the torch switch. The start / display discriminating circuit outputs a start command signal when the discriminating time is exceeded, and outputs the display command signal when the discriminating time is less than the discriminating time. The main control circuit that starts the operation, the display that displays the welding conditions, and the display is turned on during the period when the start command signal is input, and is turned off during the period when the start command signal is not input. A display drive circuit for an arc welding machine, comprising: a display drive circuit that turns on the display for a predetermined time when the display command signal is input.
第２の発明は、送給／停止を指令するインチングスイッチと、負荷に予め定めた電力を供給する主電源回路と、起動／停止を指令するトーチスイッチと、作業者がインチングスイッチを押す時間が予め定めた判別時間以上のときインチング指令信号を出力し、上記判別時間未満のとき表示指令信号を出力するインチング・表示判別回路と、上記インチング指令信号が入力されると上記主電源回路の制御を停止する主制御回路と、溶接条件を表示する表示器と、上記起動信号が入力されている期間中は上記表示器を点灯させ、上記起動信号が入力されていない期間中は消灯させ、上記表示指令信号が入力されると所定時間の間上記表示器を点灯させる表示駆動回路と、を具備したアーク溶接機の表示装置である。 According to a second aspect of the present invention, there is provided an inching switch for instructing feeding / stopping, a main power supply circuit for supplying predetermined power to a load, a torch switch for instructing starting / stopping, and a time for an operator to press the inching switch. An inching / display determination circuit that outputs an inching command signal when the predetermined determination time is exceeded or less, and a display command signal when the time is less than the determination time, and controls the main power circuit when the inching command signal is input. The main control circuit to be stopped, the display for displaying the welding conditions, the display is turned on during the period when the start signal is input, and the display is turned off during the period when the start signal is not input. A display device for an arc welding machine, comprising: a display drive circuit that turns on the display for a predetermined time when a command signal is input.
第１の発明によれば、作業者がトーチスイッチを押して表示器を点灯させても、ワイヤと被加工物との間の無負荷電圧が発生しない。更に、ワイヤ送給もされないのでスタート性も改善できる。 According to the first aspect of the invention, no load voltage between the wire and the workpiece does not occur even when the operator presses the torch switch to light the display. Furthermore, since the wire is not fed, the startability can be improved.
第２の発明によれば、作業者が手元のリモートコントロール装置のインチングスイッチを押して表示器を点灯させても、ワイヤ送給がされないのでスタート性が改善できる。 According to the second aspect of the present invention, even if the operator presses the inching switch of the remote control device at hand to turn on the display device, the wire feeding is not performed, so the startability can be improved.
［実施の形態１］
図１は、本発明の実施形態１に係るアーク溶接機の表示装置の接続図である。同図において、図５に示す、従来技術のアーク溶接機の表示装置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符号が相違する構成についてのみ説明する。
[Embodiment 1]
FIG. 1 is a connection diagram of a display device of an arc welder according to
図１に示す、起動・表示判別回路ＴＣは、トーチスイッチを押し出力される起動信号Ｔｓが予め定めた判別時間以上のとき起動指令信号Ｔｏとして主制御回路ＭＣに入力し、上記起動信号Ｔｓが判別時間未満のとき表示指令信号Ｔｃとして表示駆動回路ＩＤに入力する。 The start / display determination circuit TC shown in FIG. 1 inputs a start command signal To to the main control circuit MC when the start signal Ts output by pressing the torch switch is longer than a predetermined determination time, and the start signal Ts When it is less than the determination time, it is input to the display drive circuit ID as the display command signal Tc.
表示駆動回路ＩＤは、時限機能を有し、主制御信号Ｍｓ、表示指令信号Ｔｃ及びリセット信号Ｍｒを入力とし、上記主制御信号ＭｓがＨｉｇｈレベルになると表示駆動信号ＩｄをＨｉｇｈレベルにし、上記主制御信号ＭｓがＬｏｗレベルになると予め定めた時限Ｔ２が経過した後に上記表示駆動信号ＩｄをＬｏｗレベルにして出力する。また、上記表示指令信号Ｔｃ及びリセット信号Ｍｒが入力されると上記表示駆動信号ＩｄをＨｉｇｈレベルにする。 The display drive circuit ID has a time limit function, and receives the main control signal Ms, the display command signal Tc, and the reset signal Mr. When the main control signal Ms becomes High level, the display drive signal Id becomes High level, and the main drive signal Id becomes high level. When the control signal Ms becomes Low level, the display drive signal Id is set to Low level and output after a predetermined time period T2 has elapsed. When the display command signal Tc and the reset signal Mr are input, the display drive signal Id is set to a high level.
図２は、実施形態１の動作を説明する波形図である。同図において、同図（Ａ）は、起動信号Ｔｓを示し、同図（Ｂ）は、起動指令信号Ｔｏを示し、同図（Ｃ）は、表示指令信号Ｔｃを示し、同図（Ｄ）は、主制御信号Ｍｓを示し、同図（Ｅ）は、溶接条件信号Ｍｉを示し、同図（Ｆ）は、表示駆動信号Ｉｄを示す。続いて、上記図２の波形図を用いて動作について説明する。 FIG. 2 is a waveform diagram for explaining the operation of the first embodiment. In the same figure, (A) shows the start signal Ts, (B) shows the start command signal To, (C) shows the display command signal Tc, (D) Indicates the main control signal Ms, FIG. 5E shows the welding condition signal Mi, and FIG. 4F shows the display drive signal Id. Next, the operation will be described with reference to the waveform diagram of FIG.
図６に示す時刻ｔ＝ｔ１において、同図（Ａ）に示す、起動信号ＴｓがＨｉｇｈレベルになると、起動・表示判別回路ＴＣは、上記起動信号ＴｓのＨｉｇｈレベルの時間が予め定めた判別時間Ｔ１以上か、未満かを判別し、上記判別時間Ｔ１以上のとき起動指令信号Ｔｏとし時刻ｔ＝ｔ２において、同図（Ｂ）に示す起動指令信号ＴｏをＨｉｇｈレベルにして主制御回路ＭＣに入力する。上記主制御回路ＭＣは上記起動指令信号ＴｏがＨｉｇｈレベルになると溶接電流設定値Ｉｒ及び溶接電圧設定値Ｖｒに基づいて主電源駆動信号Ｍｃを出力し上記主電源回路ＩＮＶの出力制御を開始する。 When the activation signal Ts shown in FIG. 6A becomes High level at time t = t1 shown in FIG. 6, the activation / display determination circuit TC determines the time of the high level of the activation signal Ts as a predetermined determination time. It is discriminated whether it is equal to or greater than T1, and when it is equal to or greater than the discriminating time T1, at time t = t2, the activation command signal To shown in FIG. 5B is set to High level and input to the main control circuit MC. To do. When the activation command signal To becomes High level, the main control circuit MC outputs a main power drive signal Mc based on the welding current set value Ir and the welding voltage set value Vr, and starts output control of the main power circuit INV.
続いて、時刻ｔ＝ｔ２において、図２（Ｄ）に示す主制御信号ＭｓがＨｉｇｈレベルになると表示駆動回路ＩＤは、同図（Ｆ）に示す表示駆動信号ＩｄをＨｉｇｈレベルにして表示器ＷＬＥＤを点灯させる。 Subsequently, at time t = t2, when the main control signal Ms shown in FIG. 2D becomes High level, the display drive circuit ID sets the display drive signal Id shown in FIG. Lights up.
時刻ｔ＝ｔ２〜ｔ３においては、主制御回路ＭＣは溶接電流設定値Ｉｒ及び溶接電圧設定値Ｖｒに基づいて主電源回路ＩＮＶの出力制御をすると共に溶接条件信号Ｍｉを表示器ＷＬＥＤに入力する。上記表示器ＷＬＥＤは上記溶接条件信号Ｍｉに基づいて負荷に供給する溶接電流値、溶接電圧値及び溶接プロセス（例えば、初期条件又は本条件等）を表示する。 At time t = t2 to t3, the main control circuit MC controls the output of the main power supply circuit INV based on the welding current set value Ir and the welding voltage set value Vr, and inputs the welding condition signal Mi to the display WLED. The indicator WLED displays a welding current value, a welding voltage value and a welding process (for example, an initial condition or a main condition) supplied to the load based on the welding condition signal Mi.
図２に示す時刻ｔ＝ｔ３において、同図（Ｂ）に示す、起動指令信号ＴｏがＬｏｗレベルになると、主制御回路ＭＣは主電源回路ＩＮＶの出力制御を停止し、同図（Ｂ）に示す主制御信号ＭｓをＬｏｗレベルにする。上記主制御信号ＭｓがＬｏｗレベルになると表示駆動回路ＩＤは時限を開始し、同図（Ｆ）に示す表示駆動信号Ｉｄを時限Ｔ２の期間Ｈｉｇｈレベルにして表示器ＷＬＥＤの点灯を継続させる。続いて、時刻ｔ＝ｔ３〜ｔ４の期間は、上記表示器ＷＬＥＤに溶接電流設定値Ｉｒ、溶接電圧設定値Ｖｒ及び溶接モード（例えば、溶接法又はワイヤ径等）を表示する。 When the start command signal To shown in FIG. 2B becomes low level at time t = t3 shown in FIG. 2, the main control circuit MC stops the output control of the main power supply circuit INV, and FIG. The main control signal Ms shown is set to the Low level. When the main control signal Ms becomes the Low level, the display drive circuit ID starts the time limit, and the display drive signal Id shown in FIG. 4F is set to the High level for the period T2 to keep the display WLED on. Subsequently, during the period from time t = t3 to t4, the welding current set value Ir, the welding voltage set value Vr, and the welding mode (for example, a welding method or a wire diameter) are displayed on the display WLED.
時刻ｔ＝ｔ４において、図２（Ｆ）に示す時限Ｔ２が終了すると表示駆動信号ＩｄをＬｏｗレベルにして、表示器ＷＬＥＤを消灯させる。 At time t = t4, when the time period T2 shown in FIG. 2F ends, the display drive signal Id is set to the low level, and the display WLED is turned off.
図２に示す時刻ｔ＝ｔ５において、同図（Ａ）に示す、起動信号ＴｓがＨｉｇｈレベルになると、起動・表示判別回路ＴＣは、上記起動信号Ｔｓが判別時間Ｔ１以上か、未満かを判別し上記判別時間Ｔ１未満のとき、時刻ｔ＝ｔ６において、同図（Ｃ）に示す、表示指令信号Ｔｃとして表示駆動回路ＩＤに入力する。 At time t = t5 shown in FIG. 2, when the activation signal Ts shown in FIG. 2A becomes a high level, the activation / display determination circuit TC determines whether the activation signal Ts is equal to or longer than the determination time T1. However, when it is less than the discrimination time T1, at time t = t6, it is input to the display drive circuit ID as the display command signal Tc shown in FIG.
時刻ｔ＝ｔ６において、表示駆動回路ＩＤはリセットして同図（Ｆ）に示す表示駆動信号ＩｄがＨｉｇｈレベルになり表示器ＷＬＥＤを時限Ｔ２の期間点灯させる。続いて、時刻ｔ＝ｔ６〜ｔ７の溶接待機中は、表示器ＷＬＥＤに溶接電流設定値Ｉｒ、溶接電圧設定値Ｖｒ及び溶接モードを表示する。 At time t = t6, the display drive circuit ID is reset, and the display drive signal Id shown in FIG. 4F becomes High level, and the display WLED is turned on for the period T2. Subsequently, during welding standby at time t = t6 to t7, the welding current set value Ir, the welding voltage set value Vr, and the welding mode are displayed on the display WLED.
時刻ｔ＝ｔ７以後において、同図（Ａ）に示す、起動信号Ｔｓを再度Ｈｉｇｈレベルにすると、起動・表示判別回路ＴＣは、上記起動信号Ｔｓが判別時間Ｔ１以上か、未満かを判別し、上記判別時間Ｔ１以上のとき起動指令信号ＴｏをＨｉｇｈレベルとし、以後、上述と同一動作を繰り返す。 After the time t = t7, when the activation signal Ts shown in FIG. 5A is again set to the High level, the activation / display determination circuit TC determines whether the activation signal Ts is greater than or less than the determination time T1, When the determination time is equal to or longer than T1, the start command signal To is set to the high level, and thereafter the same operation as described above is repeated.
［実施の形態２］
図３は、本発明の実施の形態２のアーク溶接機の表示装置の接続図である。同図において、図１に示す本発明の実施の形態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. 3 is a connection diagram of the display device of the arc welder according to the second embodiment of the present invention. In the figure, the same reference numerals as those in the electrical connection diagram of the first embodiment of the present invention shown in FIG. 1 perform the same operations, and thus the description thereof will be omitted and only different operations will be described.
図３に示す、インチング・表示判別回路ＩＣは、インチングスイッチＩＳから出力されるインチング信号Ｉｓが判別時間Ｔ１以上のときインチング指令信号Ｉｏとして主制御回路ＭＣに入力し、上記インチング信号Ｉｓが判別時間Ｔ１未満のとき表示指令信号Ｉｃとして表示駆動回路ＩＤに入力する。 The inching / display discriminating circuit IC shown in FIG. 3 inputs an inching command signal Io to the main control circuit MC when the inching signal Is output from the inching switch IS is equal to or longer than the discriminating time T1, and the inching signal Is When it is less than T1, it is input to the display drive circuit ID as the display command signal Ic.
図４は、実施形態２の動作を説明する波形図である。同図において、同図（Ａ）は、起動信号Ｔｓを示し、同図（Ｂ）は、インチング信号Ｉｓを示し、同図（Ｃ）は、インチング指令信号Ｉｏを示し、同図（Ｄ）は、表示指令信号Ｉｃを示し、同図（Ｅ）は、主制御信号Ｍｓを示し、同図（Ｆ）は、溶接条件信号Ｍｉを示し、同図（Ｇ）は、溶接駆動信号Ｉｄを示す。続いて、上記図４の波形図を用いて動作について説明する。 FIG. 4 is a waveform diagram for explaining the operation of the second embodiment. In the same figure, (A) shows the start signal Ts, (B) shows the inching signal Is, (C) shows the inching command signal Io, and (D) in FIG. The display command signal Ic is shown, FIG. 5E shows the main control signal Ms, FIG. 4F shows the welding condition signal Mi, and FIG. 4G shows the welding drive signal Id. Next, the operation will be described with reference to the waveform diagram of FIG.
図４に示す時刻ｔ＝ｔ１において、同図（Ａ）に示す、起動信号ＴｓがＨｉｇｈレベルになると、主制御回路ＭＣは溶接電流設定値Ｉｒ及び溶接電圧設定値Ｖｒに基づいて主電源駆動信号Ｍｃを出力し上記主電源回路ＩＮＶを制御して出力の制御を開始し、同図（Ｅ）に示す主制御信号ＭｓもＨｉｇｈレベルになる。続いて、上記主制御信号ＭｓがＨｉｇｈレベルになると表示駆動回路ＩＤは、同図（Ｇ）に示す表示駆動信号ＩｄをＨｉｇｈレベルにして表示器ＷＬＥＤを点灯させる。 At time t = t1 shown in FIG. 4, when the start signal Ts shown in FIG. 4A is at a high level, the main control circuit MC determines the main power drive signal based on the welding current set value Ir and the welding voltage set value Vr. Mc is output to control the main power supply circuit INV to start output control, and the main control signal Ms shown in FIG. Subsequently, when the main control signal Ms becomes High level, the display driving circuit ID sets the display driving signal Id shown in FIG. 5G to High level to light the display WLED.
時刻ｔ＝ｔ１〜ｔ２においては、主制御回路ＭＣは溶接電流設定値Ｉｒ及び溶接電圧設定値Ｖｒに基づいて上記主電源回路の出力を制御すると共に溶接条件信号Ｍｉを表示器ＷＬＥＤに入力する。上記表示器ＷＬＥＤは上記溶接条件信号Ｍｉに基づいて負荷に供給する溶接電流値、溶接電圧値及び溶接プロセス（例えば、初期条件又は本条件等）を表示する。 At time t = t1 to t2, the main control circuit MC controls the output of the main power supply circuit based on the welding current set value Ir and the welding voltage set value Vr and inputs the welding condition signal Mi to the display WLED. The indicator WLED displays a welding current value, a welding voltage value and a welding process (for example, an initial condition or a main condition) supplied to the load based on the welding condition signal Mi.
図４に示す時刻ｔ＝ｔ２において、同図（Ａ）に示す、起動信号ＴｓがＬｏｗレベルになると、主制御回路ＭＣは主電源回路ＩＮＶの出力制御を停止し、同図（Ｅ）に示す主制御信号ＭｓもＬｏｗレベルにする。上記主制御信号ＭｓがＬｏｗレベルになると表示駆動回路ＩＤは時限を開始し、同図（Ｇ）に示す表示駆動信号Ｉｄを時限Ｔ２の期間はＨｉｇｈレベルにして表示器ＷＬＥＤの点灯を継続させる。続いて、時刻ｔ＝ｔ２〜ｔ３の期間は、上記表示器ＷＬＥＤに溶接電流設定値Ｉｒ、溶接電圧設定値Ｖｒ及び溶接モード（例えば、溶接法又はワイヤ径等）を表示する。 When the activation signal Ts shown in FIG. 4A becomes low level at time t = t2 shown in FIG. 4, the main control circuit MC stops the output control of the main power supply circuit INV, and shown in FIG. The main control signal Ms is also set to the low level. When the main control signal Ms becomes the Low level, the display drive circuit ID starts the time limit, and the display drive signal Id shown in FIG. 4G is set to the High level for the period of the time T2, and the lighting of the display WLED is continued. Subsequently, during a period of time t = t2 to t3, the welding current set value Ir, the welding voltage set value Vr, and the welding mode (for example, a welding method or a wire diameter) are displayed on the display WLED.
時刻ｔ＝ｔ３において、インチングスイッチＩＳを押して図４（Ｂ）に示す、インチング信号ＩｓがＨｉｇｈレベルになると、インチング・表示判別回路ＴＣは、上記インチング信号Ｉｓが判別時間Ｔ１以上か、未満かを判別し上記判別時間Ｔ１以上のとき、インチング指令信号Ｉｏとし、時刻ｔ＝ｔ４において、上記インチング指令信号ＩｏをＨｉｇｈレベルにして主制御回路ＭＣに入力する。上記主制御回路ＭＣは上記インチング指令信号ＩｏがＨｉｇｈレベルになると、ワイヤ２を所定の速度で送給する。
At time t = t3, when the inching switch IS is pushed and the inching signal Is shown in FIG. 4B becomes high level, the inching / display determination circuit TC determines whether the inching signal Is is greater than or less than the determination time T1. When the determination time is equal to or longer than the determination time T1, the inching command signal Io is set, and at time t = t4, the inching command signal Io is set to High level and input to the main control circuit MC. When the inching command signal Io becomes High level, the main control circuit MC feeds the
図４に示す時刻ｔ＝ｔ５において、再度インチングスイッチＩＳを押して同図（Ｂ）に示す、インチング信号ＩｓがＨｉｇｈレベルになると、インチング・表示判別回路ＩＣは、上記インチング信号Ｉｓが判別時間Ｔ１以上か、未満かを判別し上記判別時間Ｔ１未満のとき、時刻ｔ＝ｔ６において、表示指令信号Ｉｃとして表示駆動回路ＩＤに入力する。 When the inching switch IS is pushed again at the time t = t5 shown in FIG. 4 and the inching signal Is shown in FIG. 4B becomes a high level, the inching / display discrimination circuit IC determines that the inching signal Is exceeds the discrimination time T1. When the time is less than the determination time T1, at time t = t6, the display command signal Ic is input to the display drive circuit ID.
時刻ｔ＝ｔ６において、表示駆動回路ＩＤはリセットされて図４（Ｇ）に示す表示駆動信号ＩｄがＨｉｇｈレベルになり表示器ＷＬＥＤを時限Ｔ２の期間点灯させる。続いて、時刻ｔ＝ｔ６〜ｔ７の溶接待機中は、表示器ＷＬＥＤに溶接電流設定値Ｉｒ、溶接電圧設定値Ｖｒ及び溶接モードを表示する。 At time t = t6, the display drive circuit ID is reset and the display drive signal Id shown in FIG. 4G becomes High level, and the display WLED is turned on for the period T2. Subsequently, during welding standby at time t = t6 to t7, the welding current set value Ir, the welding voltage set value Vr, and the welding mode are displayed on the display WLED.
時刻ｔ＝ｔ７以後において、同図（Ａ）に示す、起動信号ＴｓがＨｉｇｈレベルになると、主制御回路ＭＣは溶接電流設定値Ｉｒ及び溶接電圧設定値Ｖｒに基づいて主電源駆動信号Ｍｃを出力し上記主電源回路ＩＮＶの出力の制御を開始し、以後、上述と同一動作を繰り返す。 After the time t = t7, when the start signal Ts shown in FIG. 5A becomes high level, the main control circuit MC outputs the main power supply drive signal Mc based on the welding current set value Ir and the welding voltage set value Vr. Then, control of the output of the main power supply circuit INV is started, and thereafter the same operation as described above is repeated.
１ 溶接トーチ
２ ワイヤ（消耗性電極）
３ 被加工物
４ 送給ロール
ＡＣ 商用周波数の交流電源
ＩＣ インチング・表示判別回路
ＩＤ 表示駆動回路
ＩＲ 溶接電流設定器
ＩＳ インチングスイッチ
ＩＮＶ 主電源回路
ＭＣ 主制御回路
ＲＥ リモートコントロール装置
ＴＣ 起動・表示判別回路
ＴＳ トーチスイッチ
ＶＲ 溶接電圧設定器
ＷＧ 溶接電源
ＷＬＥＤ 表示器
Ｉｃ、Ｔｃ 表示指令信号
Ｉｄ 表示駆動信号
Ｉｏ インチング指令信号
Ｉｒ 溶接電流設定値
Ｔｓ 起動信号
Ｔｏ 起動指令信号
Ｖｒ 溶接電圧設定値
Ｍｃ 主電源駆動信号
Ｍｉ 溶接条件信号
Ｍｒ リセット信号
Ｍｓ 主制御信号
1
3
Ic, Tc Display command signal Id Display drive signal Io Inching command signal Ir Welding current set value Ts Start signal To Start command signal Vr Welding voltage set value Mc Main power drive signal Mi Welding condition signal Mr Reset signal Ms Main control signal
Claims (2)
Inching switch for instructing feeding / stop, main power supply circuit for supplying predetermined power to the load, torch switch for instructing starting / stopping, and time for the operator to press the inching switch is longer than the predetermined determination time An inching / display discriminating circuit that outputs an inching command signal at the time of output and a display command signal when the discriminating time is less than the discriminating time, and a main control circuit that stops the control of the main power supply circuit when the inching command signal is input, A display for displaying welding conditions, and the display is turned on during the period when the start signal is input, and is turned off during the period when the start signal is not input, and the display command signal is input And a display driving circuit for lighting the display for a predetermined time.
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| JP2005285818A JP4842604B2 (en) | 2005-09-30 | 2005-09-30 | Display device for arc welding machine |
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| JP2005285818A JP4842604B2 (en) | 2005-09-30 | 2005-09-30 | Display device for arc welding machine |
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| JP4842604B2 JP4842604B2 (en) | 2011-12-21 |
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| CN104837590A (en) * | 2012-12-14 | 2015-08-12 | 伊利诺斯工具制品有限公司 | Devices and methods for indicating power on torch |
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| JPS60206575A (en) * | 1984-03-30 | 1985-10-18 | Daihen Corp | Method for controlling wire inching |
| JPH05200547A (en) * | 1992-01-24 | 1993-08-10 | Matsushita Electric Ind Co Ltd | Arc welding power unit |
| JPH071132A (en) * | 1993-06-21 | 1995-01-06 | Hitachi Seiko Ltd | Arc welding equipment |
| JPH10193108A (en) * | 1997-01-13 | 1998-07-28 | Babcock Hitachi Kk | Control device for semi-automatic tig welding |
| JP2003019556A (en) * | 2001-07-03 | 2003-01-21 | Daihen Corp | Remote control device provided with welding condition indicating function in arc welder |
| JP2004082164A (en) * | 2002-08-27 | 2004-03-18 | Daihen Corp | Arc welder |
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| JPS60206575A (en) * | 1984-03-30 | 1985-10-18 | Daihen Corp | Method for controlling wire inching |
| JPH05200547A (en) * | 1992-01-24 | 1993-08-10 | Matsushita Electric Ind Co Ltd | Arc welding power unit |
| JPH071132A (en) * | 1993-06-21 | 1995-01-06 | Hitachi Seiko Ltd | Arc welding equipment |
| JPH10193108A (en) * | 1997-01-13 | 1998-07-28 | Babcock Hitachi Kk | Control device for semi-automatic tig welding |
| JP2003019556A (en) * | 2001-07-03 | 2003-01-21 | Daihen Corp | Remote control device provided with welding condition indicating function in arc welder |
| JP2004082164A (en) * | 2002-08-27 | 2004-03-18 | Daihen Corp | Arc welder |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104837590A (en) * | 2012-12-14 | 2015-08-12 | 伊利诺斯工具制品有限公司 | Devices and methods for indicating power on torch |
| CN109175607A (en) * | 2012-12-14 | 2019-01-11 | 伊利诺斯工具制品有限公司 | The device and method for being used to indicate power on welding torch |
| CN109175607B (en) * | 2012-12-14 | 2021-05-11 | 伊利诺斯工具制品有限公司 | Device and method for indicating power on torch |
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