JP2003191075A - Consumable electrode type arc welding equipment - Google Patents

Consumable electrode type arc welding equipment

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Publication number
JP2003191075A
JP2003191075A JP2001391295A JP2001391295A JP2003191075A JP 2003191075 A JP2003191075 A JP 2003191075A JP 2001391295 A JP2001391295 A JP 2001391295A JP 2001391295 A JP2001391295 A JP 2001391295A JP 2003191075 A JP2003191075 A JP 2003191075A
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welding
signal
circuit
output
voltage
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JP4739621B2 (en
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Hirokazu Iokura
Hiroyuki Ishii
Akira Nitta
弘和 五百蔵
晃 新田
博幸 石井
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Daihen Corp
株式会社ダイヘン
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Abstract

PROBLEM TO BE SOLVED: To solve the problem that a workability is poor and a control cables are likely to cause disconnection because bundled and integrated control wires must be moved together with a wire feeding equipment which is separated from a welding power supply, when transported.
SOLUTION: The consumable electrode type arc welding equipment is a type in which an output control power supply PS for a standby welding period is provided in a welding power supply WER2, a control power supply SP incorporating a feeding device which inputs a control voltage from a power cable is provided in a wire feeding device WSR2, a spectrum expansion communication part which transmits and receives a control signal by a spectrum diffusion communication method between the wire feeding device WSR2 and the welding power supply WER2 via a power cable. The control voltage, which the control power supply SP incorporating a feeding device inputs, is supplied from the output control power supply PS for a standby welding period during a welding standby period, supplied from an arc voltage during a welding period, and supplied from a no-load voltage of the welding power supply WER2 during a period of a no-load voltage output.
COPYRIGHT: (C)2003,JPO

Description

【発明の詳細な説明】 【0001】 【発明の属する技術分野】本発明は、溶接用電力を出力する溶接電源出力回路を備えた溶接電源と溶接する位置の移動に伴って溶接作業者が持ち運びするワイヤ送給装置とに分離されている消耗電極式アーク溶接装置に関する。 BACKGROUND OF THE INVENTION [0001] [Technical Field of the Invention The present invention is a welding operator to carry along with the movement of the position to be welded and the welding power supply with the welding power source output circuit for outputting the welding power to about wire feeder and the consumable electrode type arc welding device is separated into. 【0002】 【従来の技術】図2は、従来技術の消耗電極式アーク溶接装置の接続図である。 [0002] FIG 2 is a connection diagram of a prior art consumable electrode type arc welding device. 消耗電極式アーク溶接装置は、 The consumable electrode type arc welding device,
通常、重量があるために移動させない溶接電源WERと溶接位置の移動に伴って溶接作業者が持ち運びするワイヤ送給装置WSRとに分離されている。 Usually separated into a wire feeder WSR for portable welding operator with the movement of the welding position between the welding power source WER is not moved because of the weight. この溶接電源W This welding power supply W
ERには、後述する溶接電源出力回路WP、制御電源アセンブリィMS、出力制御回路等が内蔵されている。 The ER, described later welding power-supply output circuit WP, control power assembly I MS, the output control circuit, or the like is incorporated. また、リモコン装置REMには、溶接電流設定器WI、溶接電圧設定器WVが内蔵されている。 Further, the remote controller REM, the welding current setting unit WI, the welding voltage setting unit WV built. さらに、ワイヤ送給装置WSRには、後述する送給モータM、電磁弁SO Further, the wire feeder WSR, feed motor M to be described later, solenoid valves SO
L等が内蔵されている。 L, or the like is incorporated. この電磁弁SOLは、消耗電極式アーク溶接方法が、CO2溶接、MIG溶接、MAG The solenoid valve SOL is consumable electrode type arc welding method, CO2 welding, MIG welding, MAG
溶接等のガスシールド消耗電極式アーク溶接のときに、 When the gas shielded consumable electrode arc welding, such as welding,
溶接トーチTHから噴出されるシールドガスの流路の開閉をする。 The opening and closing of the flow path of the shielding gas ejected from the welding torch TH. 【0003】同図において、溶接電源出力回路WPは、 [0003] In the figure, the welding power supply output circuit WP is
溶接用電力を出力する回路であって、1次整流回路DR A circuit that outputs the welding power, the primary rectifier circuit DR
1、インバータ回路INV、主変圧器INT、2次整流回路DR2、直流リアクトルDL等から形成されている。 1, the inverter circuit INV, the main transformer INT, 2 rectification circuit DR2, and is formed from a DC reactor DL ​​or the like. 1次整流回路DR1は、三相交流商用電源ACの出力を整流し直流電力に変換する。 The primary rectifying circuit DR1 converts the output of the three-phase AC commercial power source AC to the rectifying and DC power. インバータ回路INV The inverter circuit INV
は、1次整流回路DR1で直流に変換した電力を高周波交流パルス電圧に変換し、主変圧器INTは、インバータ回路INVの出力をアーク加工に適した高周波交流パルス電圧に変換し、2次整流回路DR2は、主変圧器の出力を整流して直流電力に変換する。 Converts power converted into DC by the primary rectifier circuit DR1 to high frequency AC pulse voltage, the main transformer INT converts the output of the inverter circuit INV to the high frequency AC pulse voltage suitable for arc machining, secondary rectification circuit DR2 is converted into DC power by rectifying the output of the main transformer. この変換した直流電力を直流リアクトルDLを通じて第1のパワーケーブル4及び第2のパワーケーブル5を通じて、消耗性電極2及び被加工物1に供給する。 The converted DC power through the first power cable 4 and the second power cable 5 through a DC reactor DL, and supplies the consumable electrode 2 and the workpiece 1. 【0004】図示省略の出力制御部は、出力制御回路S [0004] The output control unit (not shown), the output control circuit S
C、溶接電圧設定器WV、クレータ電圧設定器CV、出力電圧検出回路VD、出力電流検出回路ID及びインバータ駆動回路IRから形成されている。 C, the welding voltage setting unit WV, craters voltage setter CV, the output voltage detecting circuit VD, and is formed from the output current detection circuit ID and the inverter drive circuit IR. 出力電圧検出回路VDは出力端子間の電圧を検出し、出力電流検出回路IDは出力電流を検出する。 Output voltage detection circuit VD detects the voltage between the output terminals, the output current detection circuit ID detects the output current. 【0005】(従来技術の制御ケーブル使用の)溶接電源WERの制御電源アセンブリィMS及び出力制御回路SCとワイヤ送給装置WSRとの間は、第1のパワーケーブル4及び第2のパワーケーブル5の他に、起動信号用制御線6(トーチスイッチ用2芯ケーブル)、モータ用制御線7、電磁弁用制御線8及びGND線9の複数の制御線が接続されている。 [0005] Between the (prior art control cable use) welding power supply WER control power assembly I MS and the output control circuit SC and the wire feeder WSR, first power cable 4 and the second power cable 5 Besides, the start signal for the control line 6 (torch 2-core cable switch), the motor control line 7, a plurality of control lines of the solenoid valve control line 8 and the GND line 9 is connected to. また、出力制御回路SCとリモコン装置REMとの間には、リモコン制御用電源線1 Between the output control circuit SC and the remote control device REM, remote control power supply line 1
1、溶接電流設定用制御線12、溶接電圧設定用制御線13、リモコン制御用GND線14及びインチング用制御線15によって接続されている。 1, the welding current setting control line 12, are connected by welding voltage setting control line 13, the remote controller controlling GND lines 14 and inching control line 15. これらの複数の制御線は、束ねて一体化したり、複数心線からなる制御ケーブル10及びリモコン装置用制御ケーブル16が使用されている。 The plurality of control lines, or integrated bundling, control cable 10 and a remote control device for control cable 16 comprising a plurality cords are used. 従って、溶接位置の移動に伴って溶接作業者がワイヤ送給装置WSRを持ち運びするときに、上記束ねて一体化した制御線又は複数心線からなる制御ケーブル10及びリモコン装置用制御ケーブル16も一緒に移動させている。 Thus, when the welder in accordance with the movement of the welding position is carried a wire feeder WSR, also control cable 10 and a remote control device for control cable 16 and a control line or cord and integrated by bundling the combined It is moved to. 【0006】出力制御回路SCは、トーチスイッチ起動信号Tsに応じて動作を開始し、リモコン装置REM内蔵の溶接電流設定器WIによって設定される予め定めた値の溶接電流設定信号Wi、溶接電圧設定器WVによって設定される予め定めた溶接電圧設定信号Wv、溶接電源WER内蔵のクレータ電流設定器CIによって設定される予め定めたクレータ電流設定信号Ci、クレータ電圧設定器CVによって設定される予め定めたクレータ電圧設定信号Cv、出力電圧検出信号Vd及び出力電流検出信号Idとの値に応じて演算処理を行って、出力制御信号Scを出力すると共に、送給モータ制御信号Sa及び溶接電源内蔵電磁弁開閉信号S1を出力する。 [0006] The output control circuit SC starts operating in response to the torch switch activation signal Ts, the welding current setting signal Wi of a predetermined value set by the remote control device REM internal welding current setter WI, welding voltage setting predetermined welding voltage setting signal Wv set by vessels WV, predetermined crater current setting signal Ci is set by the welding power WER internal crater current setter CI, predetermined set by the crater voltage setter CV crater voltage setting signal Cv, performs operation processing in accordance with the value of the output voltage detection signal Vd and the output current detection signal Id, and outputs an output control signal Sc, feed motor control signal Sa and the welding power source internal solenoid valve and it outputs a switching signal S1. 【0007】制御電源アセンブリィMSは、電源投入中供給補助変圧器TO、補助電源整流回路DR3、電磁弁開閉スイッチSW1及び送給モータ制御回路GAによって形成されている。 [0007] Control power assembly I MS is powered on in the feed auxiliary transformer TO, auxiliary power rectifier circuit DR3, which is formed by an electromagnetic valve opening and closing switches SW1 and delivery motor control circuit GA. 【0008】電源投入中供給補助変圧器TOは、三相交流商用電源ACを送給モータの駆動電圧及び電磁弁の動作電圧に適した電圧に変換し、補助電源整流回路DR3 [0008] Power-on the feed auxiliary transformer TO transforms into voltage suitable three-phase AC commercial power source AC to the operating voltage of the drive voltage and the electromagnetic valve of the feed motor, the auxiliary power rectifier circuit DR3
は、電源投入中供給補助変圧器TOの出力を整流して直流電力に変換する。 It is converted into DC power by rectifying the output of the power-on in the feed auxiliary transformer TO. 電磁弁開閉スイッチSW1を開閉する溶接電源内蔵電磁弁開閉信号S1がHighレベルの期間中は、電磁弁開閉スイッチSW1の線路を導通(電磁弁開閉スイッチSW1をON)して電磁弁SOLの流路を形成(電磁弁SOLをON)する。 During the welding power source internal solenoid valve closing signal S1 is at the High level for opening and closing the solenoid valve opening and closing switch SW1, the flow path of the solenoid valve SOL conducting the line of the solenoid valve opening and closing switch SW1 (ON the solenoid valve opening and closing switches SW1) the form (ON the solenoid valve SOL). 送給モータ制御回路GAは送給モータ制御信号Saの値に応じて、送給モータMの回転数を制御する。 Feed motor control circuit GA is in accordance with the value of the feed motor control signal Sa, to control the rotational speed of the feed motor M. 【0009】モータ制御回路外装のワイヤ送給装置WS [0009] The motor control circuit exterior wire feeder WS
Rは、送給モータM、電磁弁SOL及び送給ロール3で形成されている。 R is feed motor M, is formed of a solenoid valve SOL and delivery roll 3. 【0010】図3は、図2に示す従来技術の消耗電極式アーク溶接装置の動作を説明するためのタイミング図であり、図2に示す従来技術の動作を図3のタイミング図によって説明する。 [0010] Figure 3 is a timing diagram illustrating the operation of the prior art consumable electrode type arc welding apparatus shown in FIG. 2 will be described with reference to the timing diagram of Figure 3 the operation of the prior art shown in FIG. 図3(A)は、出力電圧検出信号V 3 (A) is the output voltage detection signal V
dを示し、図3(B)は、出力電流検出信号Idを示す。 It shows the d, FIG. 3 (B) shows an output current detection signal Id. 図3(C)は、トーチスイッチTSから出力するトーチスイッチ起動信号Tsを示し、図3(D)は、出力制御回路SCから出力する送給モータ制御信号Saを示し、図3(E)は、出力制御回路SCから出力する溶接電源内蔵電磁弁開閉信号S1を示す。 FIG. 3 (C) shows the torch switch activation signal Ts output from the torch switch TS, FIG. 3 (D) shows the feed motor control signal Sa outputted from the output control circuit SC, FIG 3 (E) is shows the welding power supply built solenoid valve closing signal S1 outputted from the output control circuit SC. 【0011】図2に示すトーチスイッチTSから、図3 [0011] from the torch switch TS shown in FIG. 2, Fig. 3
(C)に示すトーチスイッチ起動信号Tsが時刻t=t Torch switch activation signal Ts shown in (C) the time t = t
2において出力されてHighレベルになると、出力制御回路SCは、溶接電流設定信号Wi、クレータ電流設定信号Ci、溶接電圧設定信号Wv及びクレータ電圧設定信号Cvの値並びに出力電流検出信号Id及び出力電圧検出信号Vdの値に応じて演算処理を行って、出力制御信号Sc、溶接電源内蔵電磁弁開閉信号S1及び送給モータ制御信号Saを出力する。 Becomes the High level is output at 2, the output control circuit SC, the welding current setting signal Wi, crater current setting signal Ci, a welding voltage setting signal Wv and crater voltage setting signal Cv value and the output current detection signal Id and the output voltage performs operation processing in accordance with the value of the detection signal Vd, the output control signal Sc, it outputs the welding power-supply internal solenoid valve closing signal S1 and delivery motor control signal Sa. 【0012】図3(D)に示す時刻t=t2において、 [0012] At time t = t2 shown in FIG. 3 (D),
送給モータ制御信号Saが送給モータ制御回路GAに入力されると、上記送給モータ制御回路GAは入力信号の値に応じて送給モータMの回転を制御する。 When feed motor control signal Sa is input to the feed motor control circuit GA, the feed motor control circuit GA controls the rotation of the feed motor M in accordance with the value of the input signal. 【0013】図3(E)に示す時刻t=t2において、 [0013] At time t = t2 shown in FIG. 3 (E),
溶接電源内蔵電磁弁開閉信号S1が電磁弁SOLに入力されて電磁弁を開閉する。 Welding power source internal solenoid valve closing signal S1 to open and close the solenoid valve is inputted to the solenoid valve SOL. 【0014】図3(B)に示すT2は無負荷電圧出力期間を示し、消耗性電極2を予め定めた値の送給速度で送給し、時刻t=t3において、消耗性電極2と被加工物1とが接触すると同時にアークスタート電流が流れてアークが発生し、溶接期間T3の間、短絡とアークを繰り返す「短絡移行」を行う。 [0014] FIG. 3 (B) T2 shown in represents the no-load voltage output period, feeds feed at feed rate of a predetermined value consumable electrode 2, at time t = t3, the consumable electrode 2 to be workpiece 1 and to the arc is generated arc start current flows simultaneously contact, carried out during the welding period T3, repeated short arc to "short-circuit transfer". 【0015】図3(D)に示す時刻t=t4において、 [0015] At time t = t4 shown in FIG. 3 (D),
トーチスイッチ起動信号TsがLowレベルになると送給モータMの回転数が減速すると共に、予め定めた値のアンチスティック期間T4後にインバータ回路の出力が停止する。 With the torch switch activation signal Ts becomes Low level rotational speed of the feed motor M is decelerated, the output of the inverter circuit is stopped after the anti-stick period T4 of a predetermined value. また、予め定めた値のアフタフロー期間T5 Also, after-flow period of a predetermined value T5
後に電磁弁開閉スイッチSW1の線路を遮断(電磁弁開閉スイッチSW1をOFF)にして電磁弁SOLの線路を遮断(電磁弁SOLをOFF)する。 After blocking the line of the solenoid valve opening and closing switch SW1 cut off line of the solenoid valve SOL in the (electromagnetic valve opening and closing switch SW1 OFF) (OFF solenoid valve SOL). 【0016】 【発明が解決しようとする課題】消耗電極式アーク溶接装置は、従来技術の図2に示すように、重量があるために移動させない溶接電源WERと溶接する位置の移動に伴って溶接作業者が持ち運びするワイヤ送給装置WSR [0016] The present invention is to provide a consumable electrode type arc welding apparatus, as shown in FIG. 2 of the prior art, in accordance with the movement of the position to be welded and the welding power source WER is not moved because of the weight welding wire feeder WSR the operator to carry
とに分離されている。 They are separated in the door. 従って、溶接位置の移動に伴って溶接作業者がワイヤ送給装置WSRを持ち運びするときに、束ねて一体化した制御線又は複数心線からなる制御ケーブルを一緒に移動させなければならないために、作業性が非常に悪く、また、制御線の数を減らすために、 Therefore, in order to welder in accordance with the movement of the welding positions when carrying the wire feeder WSR, it is necessary to move the control cable and a control line or cord integrated bundled together, workability is very poor, and in order to reduce the number of control lines,
パワーケーブルと制御線とガスホースとを1本にまとめた複合ケーブル方式や、ガスホース内に制御線を通した複合ガース方式が実用化されているが、これらは特殊な構造であり制御線が断線したとき、修理が困難であった。 Composite cable system and summarizing the power cable and the control line hose to one, but a composite Garth system through the control line in the gas hose has been put into practical use, it is specialized structures control line is disconnected when the repair has been difficult. さらに、溶接電源WERとリモコン装置REMとの間の制御信号を増やすには、制御ケーブルの本数も増加するため、上記リモコン装置REMには必要最小限の機能しか設けることができなかった。 Furthermore, to increase the control signals between the welding power source WER and the remote control device REM, since the increase number of control cables, can not be provided only the minimum necessary functions in the remote controller REM. 【0017】 【課題を解決するための手段】出願時請求項1の装置の発明は、溶接用電力を出力する溶接電源出力回路WPを備えた溶接電源WER2と溶接する位置の移動に伴って溶接作業者が持ち運びするワイヤ送給装置WSR2とに分離されている消耗電極式アーク溶接装置において、溶接電源WER2に、溶接待機中に送給モータM及び電磁弁SOLを制御する制御電圧を第1のパワーケーブル4 [0017] According to an aspect of the invention of apparatus for application during the first aspect, in accordance with the movement of the position to be welded and the welding power source WER2 having a welding power source output circuit WP for outputting a welding power Welding in consumable electrode arc welding apparatus is separated into a wire feeder WSR2 the operator to carry, to the welding power supply WER2, ​​a control voltage for controlling the feed motor M and the solenoid valve SOL during welding waiting first power cable 4
と第2のパワーケーブル5又は接地線とに供給する溶接待機中出力制御電源PSを備えると共に、ワイヤ送給装置WSR2に、第1のパワーケーブル4と第2のパワーケーブル5又は接地線から供給される、上記制御電圧を入力する送給装置内蔵制御電源SPと、上記送給装置内蔵制御電源SPの出力電圧及びトーチスイッチ起動信号Tsを入力されると送給モータ制御信号Sa及び電磁弁駆動信号S2を出力する第2の中央演算処理回路CPU When provided with a second power cable 5 or welded Wait output control power supply PS supplies to the ground line, the wire feeder WSR2, a first power cable 4 supplied from the second power cable 5 or the ground line is the a feed device embedded control power SP which inputs the control voltage, the feeder internal control power SP of output voltage and is input to the torch switch activation signal Ts feed motor control signal Sa and the solenoid valve drive second central processing unit CPU for outputting a signal S2
2と、上記送給装置内蔵制御電源SPの送給モータ制御回路用供給電圧Sk及び送給モータ制御信号Saを入力とする送給モータ制御回路GAと、上記送給装置内蔵制御電源SPの電磁弁ON用供給電圧So及び電磁弁駆動信号S2を入力とする電磁弁駆動回路SW及び電磁弁S 2, and the feed motor control circuit GA which receives the feed device embedded control power SP supply voltage Sk for feed motor control circuit and the feed motor control signal Sa, electromagnetic the feed device embedded control power SP solenoid valve driving circuit SW and the solenoid valve S to enter the valve ON for supply voltage So and the electromagnetic valve drive signal S2
OLと、上記溶接電源WER2とワイヤ送給装置WSR OL and, the welding power source WER2 and wire feeder WSR
2との間の各制御信号の送信及び受信を第1のパワーケーブル4を経由してスペクトル拡散通信方式で送受信するスペクトル拡散通信部を備えた消耗電極式アーク溶接装置である。 A consumable electrode arc welding apparatus having a spread spectrum communication unit for transmitting and receiving spread spectrum communication system via transmission and a first power cable 4 reception of the control signals between the two. 【0018】出願時請求項2の装置の発明は、溶接用電力を出力する溶接電源出力回路WPを備えた溶接電源W [0018] invention of the application when the apparatus of claim 2, the welding power W with a welding power source output circuit WP for outputting welding electric power
ER2と溶接する位置の移動に伴って溶接作業者が持ち運びするワイヤ送給装置WSR2とに分離されている消耗電極式アーク溶接装置において、溶接電源WER2 In consumable electrode arc welding apparatus welder it is separated into a wire feeder WSR2 to carry along with the movement of the position to be welded and ER2, welding power supply WER2
に、溶接待機中に送給モータM及び電磁弁SOLを制御する制御電圧を第1のパワーケーブル4と第2のパワーケーブル5又は接地線とに供給する溶接待機中出力制御電源PSを備えると共に、ワイヤ送給装置WSR2に、 In, provided with a feed motor M and a control voltage for controlling the solenoid valve SOL and the first power cable 4 second power cable 5 or welded Wait output control power supply PS supplies to the ground line during the welding standby , the wire feeder WSR2,
第1のパワーケーブル4と第2のパワーケーブル5又は接地線から上記制御電圧を入力する送給装置内蔵制御電源SPを備えて、(1)上記溶接電源WER2は、第1 A first power cable 4 provided with a feed device embedded control power SP for inputting the control voltage from the second power cable 5 or the ground line, (1) the welding power source WER2 is first
のパワーケーブル4に結合させてスペクトル拡散通信方式で拡散変調信号を送受信する拡散信号結合回路TR Spread signal coupling circuit TR which is coupled to the power cable 4 for transmitting and receiving spread-spectrum modulated signal in a spread spectrum communication scheme
と、受信した拡散変調受信信号Trを逆拡散して復調を行う逆拡散復調回路SDと、復調した逆拡散復調信号S If, despreading demodulation circuit SD for demodulating the received spread modulation receiving signal Tr despreading to despread the demodulated signal S demodulated
dを中央演算処理回路CPUに対応した信号に復調する1次変調波復調回路DEと、中央演算処理回路CPUから出力する溶接電流検出・溶接監視信号Crを1次変調する信号変調回路MOと、1次変調波信号Moをスペクトル拡散する拡散変調回路SIと、上記1次変調波復調回路DEによって復調された溶接電源起動・出力電圧設定用受信信号Deの値に応じて演算して溶接電源起動信号Ctと出力電圧設定信号Cpとに分離して出力する中央演算処理回路CPUと、上記溶接電源起動信号Ctが入力されると動作を開始し、出力電圧設定信号Cp、出力電圧検出信号Vd及び出力電流検出信号Idの値に応じて演算処理を行って溶接電源出力回路WPの出力を制御する出力制御回路SC2とを備え、(2)上記ワイヤ送給装置WSR2 A primary modulation wave demodulation circuit DE for demodulating an d the signal corresponding to the central processing unit CPU, a signal modulating circuit MO to primary modulation of the welding current detection and welding monitoring signal Cr output from the central processing unit CPU, and spread modulation circuit SI for spread spectrum first modulation wave signal Mo, the welding power-up and operation according to the value of the demodulated welding power source start-output voltage setting received signal De by the first modulation wave demodulation circuit DE start a central processing unit CPU and outputting the separated signal Ct and the output voltage setting signal Cp, the operation and the welding power-supply activation signal Ct is input, the output voltage setting signal Cp, the output voltage detection signal Vd and and an output control circuit SC2 which performs arithmetic processing for controlling the output of the welding power source output circuit WP in accordance with the value of the output current detection signal Id, (2) the wire feeder WSR2 、トーチスイッチ起動信号Tsが入力されると電磁弁駆動信号S2を出力し、溶接電流設定器WIが出力する溶接電流設定信号Wi及びクレータ電流設定器CIが出力するクレータ電流設定信号Ciに応じて送給モータ制御信号Saを出力し、溶接電圧設定器WVが出力する溶接電圧設定信号Wv及びクレータ電圧設定器CVが出力するクレータ電圧設定信号Cvに応じて、溶接電源起動・出力電圧設定用送信信号Ckを出力する第2の中央演算処理回路CPU2と、上記溶接電源起動・出力電圧設定用送信信号Ckを1次変調する第2 , Depending on crater current setting signal Ci torch switch activation signal Ts is is inputted outputs a solenoid valve driving signal S2, the welding current setting signal Wi and crater current setter CI output from the welding current setting device WI outputs outputs feed motor control signal Sa, in response to the crater voltage setting signal Cv which welding voltage setting signal Wv and crater voltage setter CV outputs output from the welding voltage setting unit WV, welding power source start-output voltage transmission setting a second central processing unit CPU2 outputs a signal Ck, the to primary modulation of transmission signals Ck for welding power supply activation and output voltage setting 2
の信号変調回路MO2と、第2の1次変調波信号Mo2 A signal modulation circuit MO2 of the second primary modulated wave signal Mo2
をスペクトル拡散する第2の拡散変調回路SI2と、第1のパワーケーブル4に結合させてスペクトル拡散通信方式で拡散変調信号を送受信する第2の拡散信号結合回路TR2と、受信した第2の拡散変調受信信号Tr2を逆拡散して復調を行う第2の逆拡散復調回路SD2と、 A second spreading modulation circuit SI2 for spread spectrum, and a second spread signal coupling circuit TR2 for transmitting and receiving spread-spectrum modulated signal in the spread spectrum communication system by coupling to a first power cable 4, a second diffusion received the modulated received signal Tr2 despreading to a second despreading demodulator SD2 for demodulating,
復調した第2の逆拡散復調信号Sd2を第2の中央演算処理回路CPU2に対応した信号に復調する第2の1次変調波復調回路DE2と、上記送給モータ制御信号Sa A second primary modulated wave demodulating circuit DE2 for demodulating the second despread demodulated signal Sd2 demodulated in the second signal corresponding to the central processing circuit CPU 2, the feed motor control signal Sa
を入力して送給モータMを駆動させる送給モータ制御回路GAと、電磁弁駆動信号S2を入力して電磁弁SOL A feed motor control circuit GA which enter to drive the feed motor M and the solenoid valve to enter the electromagnetic valve drive signal S2 SOL
をON・OFFする電磁弁駆動回路SWとを備え、上記送給装置内蔵制御電源SPが入力する制御電圧は、溶接待機期間(図5のT6及びT7)中は上記溶接待機中出力制御電源PSから供給され、溶接期間及びアンチスチィック期間(図5のT3及びT4)中はアーク電圧から供給され、無負荷電圧出力期間(図5のT2)中は溶接電源WER2の無負荷電圧から供給される消耗電極式アーク溶接装置である。 The an electromagnetic valve drive circuit SW to ON · OFF, the control voltage which the feed device embedded control power SP is input, the welding waiting period (T6 and T7 in Figure 5) the welding Wait output control power supply PS is in It is supplied from the inside weld period and Anchisuchiikku period (T3 and T4 of FIG. 5) is supplied from the arc voltage, among no-load voltage output period (T2 in FIG. 5) is supplied from the no-load voltage of the welding power source WER2 that is a consumable electrode arc welding apparatus. 【0019】出願時請求項3の装置の発明は、溶接用電力を出力する溶接電源出力回路WPを備えた溶接電源W [0019] invention the device application when claim 3, welding power supply W having a welding power source output circuit WP for outputting welding electric power
ER2と溶接する位置の移動に伴って溶接作業者が持ち運びするワイヤ送給装置WSR2とに分離されている消耗電極式アーク溶接装置において、溶接電源WER2 In consumable electrode arc welding apparatus welder it is separated into a wire feeder WSR2 to carry along with the movement of the position to be welded and ER2, welding power supply WER2
に、溶接待機中に送給モータM及び電磁弁SOLを制御する制御電圧を第1のパワーケーブル4と第2のパワーケーブル5又は接地線とに供給する溶接待機中出力制御電源PSを備えると共に、ワイヤ送給装置WSR2に、 In, provided with a feed motor M and a control voltage for controlling the solenoid valve SOL and the first power cable 4 second power cable 5 or welded Wait output control power supply PS supplies to the ground line during the welding standby , the wire feeder WSR2,
第1のパワーケーブル4と第2のパワーケーブル5又は接地線から上記制御電圧を入力する送給装置内蔵制御電源SPを備えて、(1)上記溶接電源WER2は、第1 A first power cable 4 provided with a feed device embedded control power SP for inputting the control voltage from the second power cable 5 or the ground line, (1) the welding power source WER2 is first
のパワーケーブル4に結合させてスペクトル拡散通信方式で拡散変調信号を送受信する拡散信号結合回路TR Spread signal coupling circuit TR which is coupled to the power cable 4 for transmitting and receiving spread-spectrum modulated signal in a spread spectrum communication scheme
と、受信した拡散変調受信信号Trを逆拡散して復調を行う逆拡散復調回路SDと、復調した逆拡散復調信号S If, despreading demodulation circuit SD for demodulating the received spread modulation receiving signal Tr despreading to despread the demodulated signal S demodulated
dを中央演算処理回路CPUに対応した信号に復調する1次変調波復調回路DEと、中央演算処理回路CPUから出力する溶接電流検出・溶接監視信号Crを1次変調する信号変調回路MOと、1次変調波信号Moをスペクトル拡散する拡散変調回路SIと、上記1次変調波復調回路DEによって復調された溶接電源起動・出力電圧設定用受信信号Deの値に応じて演算して溶接電源起動信号Ctと出力電圧設定信号Cpとに分離して出力する中央演算処理回路CPUと、上記溶接電源起動信号Ctが入力されると動作を開始し、出力電圧設定信号Cp、出力電圧検出信号Vd及び出力電流検出信号Idの値に応じて演算処理を行って溶接電源出力回路WPの出力を制御する出力制御回路SC2とを備え、(2)上記ワイヤ送給装置WSR2 A primary modulation wave demodulation circuit DE for demodulating an d the signal corresponding to the central processing unit CPU, a signal modulating circuit MO to primary modulation of the welding current detection and welding monitoring signal Cr output from the central processing unit CPU, and spread modulation circuit SI for spread spectrum first modulation wave signal Mo, the welding power-up and operation according to the value of the demodulated welding power source start-output voltage setting received signal De by the first modulation wave demodulation circuit DE start a central processing unit CPU and outputting the separated signal Ct and the output voltage setting signal Cp, the operation and the welding power-supply activation signal Ct is input, the output voltage setting signal Cp, the output voltage detection signal Vd and and an output control circuit SC2 which performs arithmetic processing for controlling the output of the welding power source output circuit WP in accordance with the value of the output current detection signal Id, (2) the wire feeder WSR2 、上記送給装置内蔵制御電源SPが供給する第2の中央演算処理回路用供給電圧Spを電源として、トーチスイッチ起動信号Tsが入力されると電磁弁駆動信号S2を出力し、溶接電流設定器WIが出力する溶接電流設定信号Wi及びクレータ電流設定器CI , The delivery device embedded control power SP is a second supply voltage Sp for the central processing circuit for supplying a power supply, the torch switch activation signal Ts is inputted outputs a solenoid valve driving signal S2, the welding current setting device welding current setting signal Wi and crater current setter CI WI outputs
が出力するクレータ電流設定信号Ciに応じて送給モータ制御信号Saを出力し、溶接電圧設定器WVが出力する溶接電圧設定信号Wv及びクレータ電圧設定器CVが出力するクレータ電圧設定信号Cvに応じて、溶接電源起動・出力電圧設定用送信信号Ckを出力する第2の中央演算処理回路CPU2と、上記溶接電源起動・出力電圧設定用送信信号Ckを1次変調する第2の信号変調回路MO2と、第2の1次変調波信号Mo2をスペクトル拡散する第2の拡散変調回路SI2と、第1のパワーケーブル4に結合させてスペクトル拡散通信方式で拡散変調信号を送受信する第2の拡散信号結合回路TR2と、 Depending on but outputs the feed motor control signal Sa in response to the crater current setting signal Ci to be output, the welding voltage setting unit WV outputs welding voltage setting signal Wv and crater voltage setting signal Cv crater voltage setter CV outputs Te, welding power-up and output voltage second central processing unit CPU2 outputs a setting transmission signal Ck, the second signal modulation circuit for primary modulation of transmission signals Ck for welding power supply activation and output voltage setting MO2 When a second spread signal for transmitting and receiving the second spread modulation circuit SI2, the spread modulation signal in the spread spectrum communication system by coupling to a first power cable 4 for spread spectrum second primary modulated wave signal Mo2 and the coupling circuit TR2,
受信した第2の拡散変調受信信号Tr2を逆拡散して復調を行う第2の逆拡散復調回路SD2と、復調した第2 And a second diffusion-modulated received signal Tr2 received despread to second despreading demodulator SD2 for performing demodulation, the demodulated 2
の逆拡散復調信号Sd2を第2の中央演算処理回路CP A central processing unit CP despread demodulated signal Sd2 of the second
U2に対応した信号に復調する第2の1次変調波復調回路DE2と、上記送給装置内蔵制御電源SPが供給する送給モータ制御回路用供給電圧Skを電源として、上記送給モータ制御信号Saを入力して送給モータMを駆動させる送給モータ制御回路GAと、上記送給装置内蔵制御電源SPが供給する電磁弁ON用供給電圧Soを電源として、電磁弁駆動信号S2を入力して電磁弁SOLをON・OFFする電磁弁駆動回路SWとを備え、上記送給装置内蔵制御電源SPが入力する制御電圧は、溶接待機期間(図5のT6及びT7)中は上記溶接待機中出力制御電源PSから供給され、溶接期間及びアンチスチィック期間(図5のT3及びT4)中はアーク電圧から供給され、無負荷電圧出力期間(図5のT2)中は溶接電源WER2の無負 A second primary modulated wave demodulating circuit DE2 for demodulating the signal corresponding to U2, a supply voltage Sk for feed motor control circuit in which the feeding device embedded control power SP is supplied as a power supply, the feed motor control signal a feed motor control circuit GA which drives by entering the feed motor M to sa, the delivery device embedded control power SP is supply voltage so solenoid valve ON and supplies a power source, enter the electromagnetic valve drive signal S2 and an electromagnetic valve drive circuit SW to ON · OFF the solenoid valve SOL Te, control voltage the feed device embedded control power SP is input, the welding waiting period (T6 and T7 in FIG. 5) in the in the welding standby is supplied from the output control power supply PS, the welding period and in Anchisuchiikku period (T3 and T4 in FIG. 5) is supplied from the arc voltage, among no-load voltage output period (T2 in FIG. 5) No negative welding power supply WER2 電圧から供給される消耗電極式アーク溶接装置である。 A consumable electrode arc welding system is supplied from the voltage. 【0020】出願時請求項4の装置の発明は、出願時請求項1又は出願時請求項2又は出願時請求項3に記載の溶接待機中出力制御電源PSから供給される出力電圧が、溶接待機期間(図5のT6及びT7)中、保護特別低電圧(PELV)の規格値である実効値AC25V又はリップル無しDC60V以下の予め定めた値の電圧である消耗電極式アーク溶接装置である。 [0020] invention the device application during claim 4, the output voltage supplied from the welding standby output control power supply PS according to application upon claim 1 or application time of claims 2 or filed upon claim 3, welding during the waiting period (T6 and T7 in FIG. 5), which is a consumable electrode arc welding device is a voltage of the effective value AC25V or ripple without DC60V following a predetermined value which is a standard value of protective extra low voltage (PELV). 【0021】出願時請求項5の装置の発明は、出願時請求項2又は出願時請求項3に記載のスペクトル拡散通信方式が、直接拡散方式である消耗電極式アーク溶接装置である。 The invention of the apparatus of application upon claim 5, spread spectrum communication system according to the applicant at claim 2 or filed upon claim 3, which is a consumable electrode arc welding device is a direct spread system. 【0022】出願時請求項6の装置の発明は、出願時請求項2又は出願時請求項3に記載の送給装置内蔵制御電源SPが、ダイオードDR4を経由して第1のパワーケーブル4及び第2のパワーケーブル5とに接続されると共に、上記送給装置内蔵制御電源SPの両端に、電力供給の変動に対して安定した電力を供給する補助電源用コンデンサCが接続されて、送給モータM及び電磁弁SO [0022] invention the device application during claim 6, feed device embedded control power SP according to application upon claim 2 or filed upon claim 3, the first power cable 4 and via the diode DR4 is connected to a second power cable 5, at both ends of the feed device embedded control power SP, stable power is connected an auxiliary power supply capacitor C supplies to variations in power supply, delivery motor M and the solenoid valve SO
Lを制御する回路に第2の中央演算処理回路用供給電圧Spを出力し、送給モータMを制御する回路に送給モータ制御回路用供給電圧Skを出力し、電磁弁SOLをO A second supply voltage Sp for central processing circuit outputs to a circuit for controlling L, and the output supply voltage Sk for feed motor control circuit to a circuit for controlling the feed motor M, the solenoid valve SOL O
N・OFFする回路に電磁弁ON用供給電圧Soを出力する消耗電極式アーク溶接装置である。 A consumable electrode type arc welding device for outputting a supply voltage So solenoid valve ON to N · OFF circuits. 【0023】出願時請求項7の装置の発明は、出願時請求項1又は出願時請求項2又は出願時請求項3記載の溶接待機中出力制御電源PSが、短絡時の出力電流値が3 [0023] invention the device application during claim 7, filed at claim 1 or application time of claims 2 or filed upon claim 3 outputs the control power supply PS during welding waiting described, the output current value during short circuit 3
A以下である消耗電極式アーク溶接装置である。 A consumable electrode arc welding device is A or less. 【0024】出願時請求項8の装置の発明は、出願時請求項2又は出願時請求項3に記載のスペクトル拡散通信方式が、周波数ホッピング方式又はチャープ方式又は上記各組の方式を融合したハイブリット方式である消耗電極式アーク溶接装置である。 The invention of the device for application at claim 8, hybrid spread spectrum communication system according to the applicant at claim 2 or filed upon claim 3, fused frequency hopping or chirp scheme or above each set of type a consumable electrode arc welding device is a method. 【0025】 【発明の実施の形態】図1は、当該出願に係る発明の特徴を最も良く表す図である。 [0025] PREFERRED EMBODIMENTS Figure 1 is a best representative figure feature of the invention according to the application. 後述する図4と同じなので、説明は図4で後述する。 Because it is the same as FIG. 4 to be described later, it will be described later in FIG. 【0026】本発明の実施の形態は、出願時請求項2の装置の発明であって、溶接用電力を出力する溶接電源出力回路WPを備えた溶接電源WER2と溶接する位置の移動に伴って溶接作業者が持ち運びするワイヤ送給装置WSR2とに分離されている消耗電極式アーク溶接装置において、(制御ケーブル不要の)溶接電源WER2 [0026] Embodiments of the present invention is the invention of a device for application during claim 2, with the movement of the position to be welded and the welding power source WER2 having a welding power source output circuit WP for outputting welding electric power in consumable electrode arc welding apparatus welder is separated into a wire feeder WSR2 to carry, (control cable required) welding power supply WER2
に、溶接待機中に送給モータM及び電磁弁SOLを制御する制御電圧を第1のパワーケーブル4と第2のパワーケーブル5又は接地線とに供給する溶接待機中出力制御電源PSを備えると共に、(制御ケーブル不要の)ワイヤ送給装置WSR2に、第1のパワーケーブル4と第2 In, provided with a feed motor M and a control voltage for controlling the solenoid valve SOL and the first power cable 4 second power cable 5 or welded Wait output control power supply PS supplies to the ground line during the welding standby , the (control cable is not needed) wire feeder WSR2, a first power cable 4 second
のパワーケーブル5又は接地線から上記制御電圧を入力する送給装置内蔵制御電源SPを備えて、(1)上記溶接電源WER2は、第1のパワーケーブル4に結合させてスペクトル拡散通信方式で拡散変調信号を送受信する拡散信号結合回路TRと、受信した拡散変調受信信号T Includes a feeding device embedded control power SP from the power cable 5 or the ground line inputs the control voltage, (1) the welding power source WER2 is spread with spread spectrum communication system by coupling to a first power cable 4 and spread signal coupling circuit TR to transmit and receive modulated signals, the received spread modulation receiving signal T
rを逆拡散して復調を行う逆拡散復調回路SDと、復調した逆拡散復調信号Sdを中央演算処理回路CPUに対応した信号に復調する1次変調波復調回路DEと、中央演算処理回路CPUから出力する溶接電流検出・溶接監視信号Crを1次変調する信号変調回路MOと、1次変調波信号Moをスペクトル拡散する拡散変調回路SI Despreading demodulation circuit SD which performs despreading and demodulating the r, a primary modulated wave demodulating circuit DE for demodulating the signal despread demodulation signal Sd demodulated corresponding to the central processing circuit CPU, central processing unit CPU a signal modulation circuit MO to primary modulation of the welding current detection and welding monitoring signal Cr output from the spread modulation circuit for spread spectrum first modulation wave signal Mo SI
と、上記1次変調波復調回路DEによって復調された溶接電源起動・出力電圧設定用受信信号Deの値に応じて演算して溶接電源起動信号Ctと出力電圧設定信号Cp If, by calculating in accordance with the value of the demodulated welding power source start-output voltage setting received signal De by the first modulation wave demodulation circuit DE welding power supply activation signal Ct and the output voltage setting signal Cp
とに分離して出力する中央演算処理回路CPUと、上記溶接電源起動信号Ctが入力されると動作を開始し、出力電圧設定信号Cp、出力電圧検出信号Vd及び出力電流検出信号Idの値に応じて演算処理を行って溶接電源出力回路WPの出力を制御する出力制御回路SC2とを備え、(2)上記ワイヤ送給装置WSR2は、トーチスイッチ起動信号Tsが入力されると電磁弁駆動信号S2 A central processing unit CPU and outputting the separated preparative starts operating with the welding power-supply activation signal Ct is input, the output voltage setting signal Cp, the value of the output voltage detection signal Vd and the output current detection signal Id depending an output control circuit SC2 which performs arithmetic processing for controlling the output of the welding power source output circuit WP, the (2) the wire feeder WSR2, when the torch switch activation signal Ts is inputted solenoid valve driving signal S2
を出力し、溶接電流設定器WIが出力する溶接電流設定信号Wi及びクレータ電流設定器CIが出力するクレータ電流設定信号Ciに応じて送給モータ制御信号Saを出力し、溶接電圧設定器WVが出力する溶接電圧設定信号Wv及びクレータ電圧設定器CVが出力するクレータ電圧設定信号Cvに応じて、溶接電源起動・出力電圧設定用送信信号Ckを出力する第2の中央演算処理回路C Outputs, welding current setting signal Wi and crater current setter CI output from the welding current setting device WI outputs a feed motor control signal Sa in response to the crater current setting signal Ci to be output, the welding voltage setting unit WV depending on crater voltage setting signal Cv which output welding voltage setting signal Wv and crater voltage setter CV outputs, second central processing unit C which outputs a transmission signal Ck welding power-up and output voltage setting
PU2と、上記溶接電源起動・出力電圧設定用送信信号Ckを1次変調する第2の信号変調回路MO2と、第2 And PU2, and the second signal modulator MO2 to primary modulation of transmission signals Ck for welding power supply activation and output voltage setting, second
の1次変調波信号Mo2をスペクトル拡散する第2の拡散変調回路SI2と、第1のパワーケーブル4に結合させてスペクトル拡散通信方式で拡散変調信号を送受信する第2の拡散信号結合回路TR2と、受信した第2の拡散変調受信信号Tr2を逆拡散して復調を行う第2の逆拡散復調回路SD2と、復調した第2の逆拡散復調信号Sd2を第2の中央演算処理回路CPU2に対応した信号に復調する第2の1次変調波復調回路DE2と、上記送給モータ制御信号Saを入力して送給モータMを駆動させる送給モータ制御回路GAと、電磁弁駆動信号S2 The second spreading modulation circuit SI2 for spread spectrum first modulation wave signal Mo2, a second spread signal coupling circuit TR2 for transmitting and receiving spread-spectrum modulated signal in the spread spectrum communication system by coupling to a first power cable 4 , a second despreading demodulator SD2 performing despreading and demodulating the second spread modulated reception signal Tr2 received, corresponding to the second despread demodulated signal Sd2 demodulated to the second central processing unit CPU2 the two primary modulated wave demodulating circuit DE2, a feed motor control circuit GA which drives the input to feed motor M to the feed motor control signal Sa, the electromagnetic valve drive signal S2 for demodulating the signal
を入力して電磁弁SOLをON・OFFする電磁弁駆動回路SWとを備え、上記送給装置内蔵制御電源SPが入力する制御電圧は、溶接待機期間(図5のT6及びT Enter an electromagnetic valve drive circuit SW to ON · OFF the solenoid valve SOL the control voltage which the feed device embedded control power SP is input, T6 and T of the welding standby period (Fig. 5
7)中は上記溶接待機中出力制御電源PSから供給され、溶接期間及びアンチスチィック期間(図5のT3及びT4)中はアーク電圧から供給され、無負荷電圧出力期間(図5のT2)中は溶接電源WER2の無負荷電圧から供給される消耗電極式アーク溶接装置である。 7) In is supplied from the welding standby output control power supply PS, the inside weld period and Anchisuchiikku period (T3 and T4 of FIG. 5) is supplied from the arc voltage, the no-load voltage output period (T2 in FIG. 5) among is consumable electrode type arc welding device supplied from the no-load voltage of the welding power source WER2. 【0027】 【実施例】図4において、図2と同一の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説明する。 [0027] In EXAMPLES 4, the same reference numerals as in FIG. 2 is described since the same operation will be described the operation which differ omitted. 消耗性電極2が被加工物1に接触したとき、(制御ケーブル不要の)溶接電源WER2の出力側が第1のパワーケーブル4及び第2のパワーケーブル5を経由して短絡される。 When consumable electrode 2 is in contact with the workpiece 1, is short-circuited via the output side first power cable 4 and the second power cable 5 (the control cable required) welding power supply WER2. 【0028】溶接電源WER2とワイヤ送給装置WSR The welding power supply WER2 and wire feeder WSR
2との間の制御信号の送受信は、第1のパワーケーブル4を経由して、スペクトル拡散通信方式(Spread The transmission and reception of control signals between 2 via the first power cable 4, the spread spectrum communication system (Spread
Spectrum)の代表例である直接拡散方式(D Direct sequence method is a typical example of a Spectrum) (D
irect Spread)を使用して説明する。 Be described with reference to irect Spread). 【0029】溶接電源WER2の出力制御部は、出力制御回路SC2、出力電流検出回路ID、出力電圧検出回路VD、拡散信号結合回路TR、逆拡散復調回路SD、 The output control of the welding power source WER2, ​​the output control circuit SC2, output current detection circuit ID, the output voltage detecting circuit VD, spread signal coupling circuit TR, despreading demodulation circuit SD,
1次変調波復調回路DE、拡散変調回路SI、信号変調回路MO、中央演算処理回路CPU等から形成されている。 First modulation wave demodulation circuit DE, spread modulation circuit SI, signal modulation circuit MO, and is formed by a central processing circuit CPU. 拡散信号結合回路TRは、溶接電源WER2とワイヤ送給装置WSR2との間の、第1のパワーケーブル4 Spread signal coupling circuit TR is between the welding power supply WER2 and wire feeder WSR2, first power cable 4
に拡散変調信号を結合させて、スペクトル拡散通信方式によって送受信する。 By joining spread modulation signal to be transmitted and received by the spread spectrum communication system. 逆拡散復調回路SDは、拡散符号により広帯域の拡散変調受信信号Trを逆拡散という方法で狭帯域変調信号の逆拡散復調信号Sdに復調させる。 Despreading demodulation circuit SD causes the demodulated despread demodulation signal Sd narrowband modulated signal in such a way that despreading the wideband spread modulation receiving signal Tr with a spread code. 1次変調波復調回路DEは、上記逆拡散復調信号S First modulation wave demodulation circuit DE is the despread demodulation signal S
dの1次変調波を中央演算処理回路CPUに対応した信号に復調させる。 A primary modulated wave d is demodulated into a signal corresponding to a central processing unit CPU. 中央演算処理回路CPUは、1次変調波復調回路DEによって復調された信号の値に応じて演算して、溶接電源起動信号Ctと出力電圧設定信号Cp A central processing unit CPU is calculated according to the value of the demodulated signal by primary modulation wave demodulation circuit DE, welding power supply activation signal Ct and the output voltage setting signal Cp
とに分離して出力する。 And it outputs the separated door. 出力制御回路SC2は、上記溶接電源起動信号Ctが入力されると動作を開始し、出力電圧設定信号Cp、出力電圧検出信号Vd及び出力電流検出信号Idとの値に応じて演算処理を行って出力制御信号Scを出力する。 The output control circuit SC2 starts operation and the welding power-supply activation signal Ct is input, the output voltage setting signal Cp, performs operation processing in accordance with the value of the output voltage detection signal Vd and the output current detection signal Id and it outputs an output control signal Sc. 【0030】中央演算処理回路CPUは、出力制御回路SC2から溶接監視信号Ww及び溶接電流検出信号Wr The central processing unit CPU is welded monitoring signal Ww and the welding current detection signal Wr from the output control circuit SC2
に応じて、溶接電流検出・溶接監視送信信号Crを出力する。 Depending on, and outputs a welding current detection and welding monitoring transmission signal Cr. 信号変調回路MOは、入力信号の値に応じて搬送波をPSK(Phase Shift Keying) Signal modulation circuit MO is a carrier wave according to the value of the input signal PSK (Phase Shift Keying)
に変調した1次変調波信号Moを出力する。 It outputs the first modulation wave signal Mo which is modulated. 拡散変調回路SIは、狭帯域の1次変調波信号Moを拡散符号によりスペクトル拡散を行い広帯域の拡散変調送信信号Si Spread modulation circuit SI is narrow band of primary modulated wave signal Mo performs a spectrum spread by the spreading code wideband spread modulation transmission signal Si
に変調する。 Modulated to. 【0031】溶接待機中出力制御電源PSは、溶接待機中供給用補助変圧器TO2、電流制限用抵抗器R及び補助電源整流回路DR3によって形成されている。 [0031] During the welding standby output control power supply PS is welded waiting supplying auxiliary transformer TO2, are formed by a current limiting resistor R and the auxiliary power rectifier circuit DR3. また、 Also,
溶接待機中の上記溶接待機中出力制御電源PSの出力電圧をJISB9960−1:1999に示されている保護特別低電圧(PELV)の規格値である実効値AC2 The output voltage of the welding standby output control power supply PS in the weld waiting JISB9960-1: effective value is a standard value of 1999 to the indicated protective extra-low voltage (PELV) AC2
5V又はリップル無しDC60V以下に満足させるために、溶接待機中供給用補助変圧器TO2の2次側の巻線比を予め定めた値に設定している。 To satisfy the following 5V or ripple without DC 60V, is set to a predetermined value turns ratio of the secondary side of the welding standby supply auxiliary transformer TO2. また、出力電流の値を数A以下にするために電流制限用抵抗器Rの値を予め定めた値に設定している。 Also set to a predetermined value the value of the current limiting resistor R to the value of the output current to less than a few A. 【0032】ワイヤ送給装置WSR2は、ダイオードD The wire feeder WSR2 the diode D
R4を経由して、第1のパワーケーブル4及び第2のパワーケーブル5に接続された補助電源用コンデンサC、 Via R4, first power cable 4 and the connected auxiliary power supply capacitor C to the second power cable 5,
同じく第1のパワーケーブル4及び第2のパワーケーブル5に接続された送給装置内蔵制御電源SP、第2の拡散信号結合回路TR2、第2の逆拡散復調回路SD2、 Also first power cable 4 and the second power cable 5 to the connected feeder internal control power SP, the second spread signal coupling circuit TR2, second despreading demodulator SD2,
第2の1次変調波復調回路DE2、第2の拡散変調回路SI2、第2の信号変調回路MO2、第2の中央演算処理回路CPU2、送給モータ制御回路GA、送給モータM、インチングスイッチIT、ガスチェックスイッチG Second primary modulated wave demodulating circuit DE2, a second spreading modulation circuit SI2, the second signal modulation circuit MO2, the second central processing circuit CPU 2, feed motor control circuit GA, feed motor M, inching switch IT, gas check switch G
C、溶接電流設定器WI、クレータ電流設定器CI、溶接電圧設定器WV、クレータ電圧設定器CV、電磁弁駆動回路SW、電磁弁SOL及び表示部LDが内蔵されている。 C, the welding current setting unit WI, crater current setter CI, welding voltage setter WV, craters voltage setter CV, electromagnetic valve driving circuit SW, the solenoid valve SOL and a display unit LD is built. 【0033】ダイオードDR4は保護用ダイオードであり、また補助電源用コンデンサCは、送給装置内蔵制御電源SPの電力を蓄積する補助電源用コンデンサである。 The diode DR4 is a protective diode, also the capacitor C is an auxiliary power source, an auxiliary power supply capacitor for accumulating power delivery device embedded control power SP. 送給装置内蔵制御電源SPに入力される電圧は、溶接待機期間(図5のT6及びT7)中は上記溶接待機中出力制御電源PSから供給され、溶接期間及びアンチスチィック期間(図5のT3及びT4)中はアーク電圧から供給され、無負荷電圧出力期間(図5のT2)中は溶接電源WER2の無負荷電圧から供給される。 Voltage input to the feed device embedded control power SP, the inside weld waiting period (T6 and T7 in FIG. 5) is supplied from the welding standby output control power supply PS, the welding period and Anchisuchiikku period (in FIG. 5 the T3 and T4) in supplied from the arc voltage, among no-load voltage output period (T2 in FIG. 5) is supplied from the no-load voltage of the welding power source WER2. 【0034】送給装置内蔵制御電源SPは、補助電源用コンデンサCの端子電圧を入力電圧として第2の中央演算処理回路用供給電圧Sp、送給モータ制御回路用供給電圧Sk及び電磁弁ON用供給電圧Soの値に変換して出力する。 The delivery device embedded control power SP is a second supply voltage Sp for the central processing circuit, the supply voltage Sk and the electromagnetic valve ON for feed motor control circuit terminal voltage of the auxiliary power supply capacitor C as the input voltage It is converted into the value of the supply voltage So outputs. とくに溶接中に消耗性電極2が被加工物1に短絡したときは一時的に溶接電源WER2からの電力供給が絶たれるが、上記送給装置内蔵制御電源SPは大容量の補助電源用コンデンサCを備えているので安定した電力供給が得られる。 Particularly but consumable electrode 2 during welding power supply from temporary welding power source WER2 when shorted to the workpiece 1 is cut off, the delivery device embedded control power SP is a capacitor C for auxiliary power large capacity stable power supply is obtained is provided with the. 【0035】第2の中央演算処理回路CPU2は、送給装置内蔵制御電源SPから供給される第2の中央演算処理回路用供給電圧Spを制御電圧とし、トーチスイッチTSから出力されるトーチスイッチ起動信号Ts、溶接電流設定器WIによって設定される予め定めた値の溶接電流設定信号Wi、溶接電圧設定器WVによって設定される予め定めた値の溶接電圧設定信号Wv、クレータ電流設定器CIによって設定される予め定めた値のクレータ電流設定信号Ci及びクレータ電圧設定器CVによって設定される予め定めた値のクレータ電圧設定信号C The second central processing unit CPU2 has a second supply voltage Sp for the central processing circuit supplied from the feed device embedded control power SP and the control voltage, the torch switch activation output from the torch switch TS set by signals Ts, the welding current setting signal Wi of a predetermined value set by the welding current setting unit WI, the welding voltage setting signal Wv of a predetermined value set by the welding voltage setting unit WV, craters current setter CI crater voltage setting signal C of a predetermined value set by the predetermined value of the crater current setting signal Ci and crater voltage setter CV is
v、溶接電源から受信した溶接電流検出・溶接監視受信信号De2、インチングスイッチITによって設定されるインチング信号It、ガスチェックスイッチGCによって設定されるガスチェック信号Gcの値に応じて、送給モータ制御信号Sa、溶接電源起動・出力電圧設定用送信信号Ck、電磁弁駆動信号S2及び表示信号Ldを出力する。 v, welding current detection and welding monitoring the received signal received from the welding power source De2, inching signal is set by the inching switch IT It, depending on the value of the gas check signal Gc is set by the gas check switch GC, feed motor control signal Sa, the welding power-up and output voltage setting transmission signal Ck, and outputs an electromagnetic valve drive signal S2, and a display signal Ld. 【0036】送給モータ制御回路GAは、送給装置内蔵制御電源SPから供給される送給モータ制御回路用供給電圧Skを制御電源とし、第2の中央演算処理回路CP The feed motor control circuit GA is a supply voltage Sk for feed motor control circuit which is supplied from the feed device embedded control power SP and the control power supply, a second central processing unit CP
U2から出力される送給モータ制御信号Saの値に応じて、送給モータ用出力信号Gaを出力して送給モータM Depending on the value of the feed motor control signal Sa outputted from U2, and outputs an output signal Ga for feed motor feed motor M
の回転数を制御する。 To control the number of rotations. 【0037】電磁弁駆動回路SWは、送給装置内蔵制御電源SPから入力された電磁弁ON用供給電圧Soを制御電源とし、第2の中央演算処理回路CPU2から出力される電磁弁駆動信号S2によって電磁弁SOLを動作させて電磁弁SOLをON・OFFする。 The electromagnetic valve driving circuit SW, the supply voltage So input electromagnetic valve ON from feed device embedded control power SP and the control power supply, the electromagnetic valve drive signal is outputted from the second central processing unit CPU 2 S2 It operates the solenoid valve SOL by to ON · OFF the solenoid valve SOL and. 【0038】第2の信号変調回路MO2は、溶接電源起動・出力電圧設定用送信信号Ckの値に応じて搬送波をPSKに変調した第2の1次変調波信号Mo2を出力する。 The second signal modulator MO2 outputs the second primary modulated wave signal Mo2 which modulates a carrier in PSK in accordance with the value of the welding power-up and output voltage setting transmission signal Ck. 第2の拡散変調回路SI2は、狭帯域の第2の1次変調波信号Mo2を拡散符号によりスペクトル拡散を行い広帯域の第2の拡散変調送信信号Si2に変調する。 Second spreading modulation circuit SI2 modulates the second spread-spectrum modulated transmit signal Si2 wideband performs a spectrum spread with a spread code the second primary modulated wave signal Mo2 narrowband.
第2の拡散信号結合回路TR2は、溶接電源WER2とワイヤ送給WSR2との間の第1のパワーケーブル4に拡散変調信号を結合させてスペクトル拡散通信方式によって送受信する。 Second spread signal coupling circuit TR2 is transmitted and received by the first power cable 4 to bind the spread modulation signal spread spectrum communication method between the welding power source WER2 and wire feeder WSR2. 第2の逆拡散復調回路SD2は、拡散符号により広帯域の第2の拡散変調受信信号Tr2を逆拡散という方法で狭帯域変調信号の第2の逆拡散復調信号Sd2に復調させる。 Second despreading demodulator SD2 causes demodulated into a second despread demodulated signal Sd2 narrowband modulated signal in such a way that despreads the second spread-modulated received signal Tr2 wideband with a spread code. 第2の1次変調波復調回路DE Second primary modulated wave demodulating circuit DE
2は、上記第2の逆拡散復調信号Sd2の1次変調波を第2の中央演算処理回路CPU2に対応した信号に復調させる。 2, to demodulate the first modulation wave of the second despread demodulated signal Sd2 to the signal corresponding to the second central processing unit CPU 2. 【0039】図5は、図4に示す本発明の消耗電極式アーク溶接装置の動作を説明するためのタイミング図である。 [0039] FIG. 5 is a timing diagram illustrating the operation of the consumable electrode type arc welding device of the present invention shown in FIG. 図5(A)は、出力電圧検出信号Vdを示し、図5 5 (A) shows an output voltage detection signal Vd, 5
(B)は、出力電流検出信号Idを示す。 (B) shows the output current detection signal Id. 図5(C) Figure 5 (C)
は、トーチスイッチTSから出力するトーチスイッチ起動信号Tsを示し、図5(D)は、溶接電流検出信号W Shows the torch switch activation signal Ts output from the torch switch TS, FIG. 5 (D) welding current detection signal W
rを示す。 It shows the r. 図5(E)は、補助電源用コンデンサCの端子電圧を示し、図5(F)は、第2の中央演算処理回路CPU2から出力する溶接電源起動・出力電圧設定用送信信号Ckを示し、図5(G)は、1次変調波復調回路DEにより復調された溶接電源起動・出力電圧設定用受信信号Deを示し、図5(H)は、送給モータ制御信号Saを示し、図5(I)は、電磁弁駆動信号S2を示す。 Figure 5 (E) shows a terminal voltage of the auxiliary power supply capacitor C, FIG. 5 (F) shows a transmission signal Ck welding power-up and output voltage setting to be output from the second central processing unit CPU 2, Figure 5 (G) shows a primary modulation wave demodulating circuit receiving signals De welding power-up and output voltage setting demodulated by DE, 5 (H) shows the feed motor control signal Sa, 5 (I) shows an electromagnetic valve drive signal S2. 【0040】図6は、図4に示す本発明の消耗電極式アーク溶接装置の直接拡散方式の詳細図である。 [0040] Figure 6 is a detailed view of a direct spread system of a consumable electrode type arc welding device of the present invention shown in FIG. 信号変調回路MOは、搬送波発生回路RFと1次変調回路1Cとで形成され、拡散変調回路SIは、拡散符号発生回路D Signal modulation circuit MO is formed by the carrier wave generating circuit RF and the primary modulator 1C, spread modulation circuit SI is the spreading code generation circuit D
Mと2次変調回路2Cとで形成され、逆拡散復調回路S M and is formed by the secondary modulation circuit 2C, despreading demodulation circuit S
Dは、同期回路SS、拡散符号発生回路DM、2次復調回路2D及びバンドパスフィルタBFによって形成されている。 D is formed by a synchronizing circuit SS, the spreading code generation circuit DM, 2 primary demodulating circuit 2D and band-pass filter BF. 第2の信号変調回路MO2、第2の拡散変調回路SI2及び第2の逆拡散復調回路SD2は、上記と同一であるので省略する。 Omitted second signal modulation circuit MO2, the second spreading modulation circuit SI2 and second despreading demodulator SD2 is the same as above. 【0041】図7は、図6に示す直接拡散方式の動作を説明するための波形図である。 FIG. 7 is a waveform diagram for explaining the operation of the direct spread system shown in FIG. 図7(A)は、第2の1 FIG. 7 (A) a second 1
次変調波信号Mo2を示し、図7(B)は、第2の拡散変調送信信号Si2を示し、図7(C)は、拡散変調受信信号Trを示し、図7(D)は、2次復調信号2dを示し、図7(E)は、逆拡散復調信号Sdを示す。 It shows the following modulated wave signal Mo2, 7 (B) shows a second spread-spectrum modulated transmit signal indicates Si2, FIG. 7 (C) shows the spread modulation receiving signal Tr, FIG. 7 (D) Secondary It shows the demodulated signal 2d, FIG. 7 (E) shows the despread demodulation signal Sd. 【0042】図4に示す、本発明の消耗電極式アーク溶接装置の動作を図5、図6及び図7を用いて説明する。 [0042] FIG. 4, the operation of the consumable electrode type arc welding device of the present invention FIG 5 will be described with reference to FIGS. 【0043】図5に示す、時刻t=t1において、溶接電源WER2に三相交流商用電源ACが入力されると、 [0043] FIG. 5, at time t = t1, the three-phase AC commercial power source AC is input to the welding power source WER2,
溶接待機中出力制御電源PSは予め定めた値の出力電圧を溶接電源WER2の出力端子に出力して、第1のパワーケーブル4、ダイオードDR4を経由して溶接待機期間T6の間、補助電源用コンデンサCに電力を供給する。 Welding Wait output control power supply PS is output the output voltage of a predetermined value to the output terminal of the welding power source WER2, ​​the first power cable 4, between the welding standby period T6 via diode DR4, auxiliary power supply for supplying electric power to the capacitor C. 【0044】図5(E)に示す、補助電源用コンデンサCの端子電圧が予め定めた値を越えると、送給装置内蔵制御電源SPが動作を開始して、送給モータ制御回路用供給電圧Sk、第2の中央演算処理回路用供給電圧Sp [0044] shown in FIG. 5 (E), the terminal voltage of the auxiliary power supply capacitor C exceeds a predetermined value, the feed device embedded control power SP starts operation, the supply voltage feed motor control circuit sk, supply voltage Sp for the second central processing unit
及び電磁弁ON用供給電圧Soを出力する。 And outputs the supply voltage So solenoid valve ON. 【0045】時刻t=t2において、図5(C)に示すトーチスイッチ起動信号TsがHighレベルになると、第2の中央演算処理回路CPU2は、動作を開始して溶接電源起動・出力電圧設定用送信信号Ck、電磁弁駆動信号S2及び送給モータ制御信号Saを出力する。 [0045] At time t = t2, when the torch switch activation signal Ts shown in FIG. 5 (C) is High level, the second central processing unit CPU2 is welding power-up and output voltage setting starts operating transmission signal Ck, and outputs an electromagnetic valve drive signal S2 and feed motor control signal Sa. 【0046】第2の信号変調回路MO2は、溶接電源起動・出力電圧設定用送信信号Ckの値に応じて、搬送波発生回路RFから出力される搬送波を1次変調回路1C The second signal modulator MO2 the welding power-supply starting and according to the value of the transmission signal Ck output voltage setting, primary modulator 1C the carriers output from the carrier wave generating circuit RF
によりPSK変調した図7(A)に示す、狭帯域の第2 Shown in FIG. 7 (A) obtained by PSK modulation, the second narrowband
の1次変調波信号Mo2を出力する。 Outputs the first modulation wave signal Mo2 of. 第2の拡散変調回路SI2は、拡散符号発生回路DMから出力される高速な拡散符号信号Dmを用いて、2次変調回路2Cによりスペクトル拡散を行い図7(B)に示す、広帯域の第2 Second spreading modulation circuit SI2, using a high-speed spread code signal Dm which is output from the spread code generating circuit DM, 2 primary modulation circuit 2C shown in FIG. 7 performs a spectrum spread (B), the second broadband
の拡散変調送信信号Si2を出力する。 And it outputs a spread modulated transmission signal Si2. 第2の拡散信号結合回路TR2は、溶接電源WER2とワイヤ送給WS Second spread signal coupling circuit TR2 is welding power source WER2 and wire feeder WS
R2との間の第1のパワーケーブル4に第2の拡散変調送信信号Si2を結合させて送信する。 A first power cable 4 between the R2 is bound to the second spread-modulated transmission signal Si2 transmits. 【0047】拡散信号結合回路TRは、第1のパワーケーブル4によって送信されてくる第2の拡散変調送信信号Si2を受信して図7(C)に示す拡散変調受信信号Trとして出力する。 The spread signal coupling circuit TR outputs the first spread modulated reception signal Tr shown in FIG. 7 (C) by receiving the second spread-modulated transmission signal Si2 sent by the power cable 4. このとき溶接機が発生するノイズも受信する。 In this case also receives noise welder occurs. 逆拡散復調回路SDは、同期回路SSにより拡散符号発生回路DMから出力される拡散符号信号D Despreading demodulation circuit SD is the spreading code signal D output from the spread code generating circuit DM by the synchronization circuit SS
mを送信側の拡散符号と同期し、上記同期した拡散符号信号を用いて、2次復調回路2Dにより逆拡散を行い図7(D)に示す2次復調信号2dを出力し、バンドパスフィルタBFによりノイズを削除して図7(E)に示す逆拡散復調信号Sdを出力する。 m and synchronized with the spreading code on the transmitting side, the synchronized with the spreading code signal, despreads the secondary demodulation circuit 2D outputs the second demodulated signal 2d shown in FIG. 7 (D), the band-pass filter remove the noise and outputs the despread demodulation signal Sd shown in FIG. 7 (E) by BF. このとき、送信中に受けたノイズは、逆に拡散されて信号レベルよりはるかに小さな信号になるためノイズの影響を受けにくくなる。 In this case, the noise received in the transmission is less susceptible to noise to become much smaller signal than the spread in signal levels reversed.
1次変調波復調回路DEは、逆拡散復調信号Sd2を中央演算処理回路CPUに対応した溶接電源起動・出力電圧設定用受信信号Deに復調させる。 First modulation wave demodulation circuit DE causes demodulate the despread demodulation signal Sd2 to the central processing circuit welding power-up and output voltage setting received signals De corresponding to the CPU. 【0048】中央演算処理回路CPUは、溶接電源起動・出力電圧設定用受信信号Deの値を演算して、溶接電源起動信号Ctと出力電圧設定信号Cpとに分離して出力する。 The central processing unit CPU is executed to compute the value of the welding power-up and output voltage setting received signals De, separates and outputs the welding power-up signal Ct and an output voltage setting signal Cp. 出力制御回路SC2は、上記溶接電源起動Ct The output control circuit SC2, said welding power supply activation Ct
が入力されると動作を開始して、出力電圧設定信号C There starts operating as input, the output voltage setting signal C
p、出力電圧検出信号Vd及び出力電流検出信号Idとの値に応じて演算処理を行って出力制御信号Scの値を制御する。 p, performs arithmetic processing for controlling the value of the output control signal Sc according to the value of the output voltage detection signal Vd and the output current detection signal Id. 【0049】図5(I)に示す、電磁弁駆動信号S2がHighレベルになると、上記電磁弁駆動回路SWは、 [0049] FIG. 5 (I), when the electromagnetic valve drive signal S2 is High level, the electromagnetic valve drive circuit SW,
電磁弁駆動信号S2によって電磁弁ON用供給電圧So Supply voltage So solenoid valve ON by the electromagnetic valve drive signal S2
を出力して電磁弁SOLを動作させる。 Outputs to operate the solenoid valve SOL and. 【0050】図5(H)に示す送給モータ制御信号Sa [0050] FIG. 5 (H) to the transmission shown feed motor control signal Sa
は、溶接電流設定器WIによって設定された溶接電流設定信号Wi及びクレータ電流設定器CIによって設定される予め定めた値のクレータ電流設定信号Ci、溶接電源から受信した溶接電流検出・溶接監視受信信号De The welding current setting unit WI welding current set by the setting signal Wi and crater current setting signal Ci of a predetermined value set by the crater current setter CI, welding current detection and welding monitoring signal received from the welding power source De
2、インチングスイッチITによって設定されるインチング信号Itの値に応じて、第2の中央演算処理回路C 2, according to the value of the inching signal It is set by the inching switch IT, the second central processing unit C
PU2から出力される。 Is output from the PU2. 送給モータ制御回路GAは送給モータ制御信号Saの値に応じて送給モータMの回転数を制御する。 Feed motor control circuit GA controls the rotational speed of the feed motor M in accordance with the value of the feed motor control signal Sa. また、無負荷電圧出力期間T2の間、溶接電源WER2の無負荷電圧によって、補助電源用コンデンサCに電力が供給される。 Further, during the no-load voltage output period T2, the no-load voltage of the welding power source WER2, ​​electric power is supplied to the capacitor C for auxiliary power. 【0051】時刻t=t3において、消耗性電極2が被加工物1に接触すると、出力制御回路SC2は、接触を検出して溶接電流検出信号Wrを出力する。 [0051] At time t = t3, the consumable electrode 2 is in contact with the workpiece 1, the output control circuit SC2 detects the contact and outputs a welding current detection signal Wr. また、溶接異常を監視する溶接監視信号Wwも出力する。 It also outputs a welding monitoring signal Ww of monitoring the welding abnormality. 中央演算処理回路CPUは、溶接電流検出・溶接監視送信信号C A central processing unit CPU is welding current detection and welding monitoring transmission signal C
rを出力して、上述と同様の方法でスペクトル拡散の変調及び復調を繰り返して第2の中央演算処理回路CPU Outputs the r, the second central processing unit CPU repeats the modulation and demodulation of spread spectrum in a manner similar to that described above
2に送信され、復調された溶接電流検出・溶接監視受信信号De2に応じて、送給モータMの回転数がスローダウン速度から予め定めた溶接速度に切り替わり、アークスタート電流が流れてアークが発生する。 Is sent to 2, depending on the welding current detection and welding monitoring received signal De2 demodulated switches to welding speed which speed is predetermined from the slow-down speed of the feed motor M, an arc is generated in the arc start current flows to. さらに、溶接異常が発生したときは表示部LDに異常を表示する。 Furthermore, it displays the abnormality on the display unit LD when welding abnormality occurs. 【0052】溶接期間T3において、消耗性電極2と被加工物1とが短絡とアーク発生とを繰り返す「短絡移行」の短絡中は、一時的に補助電源用コンデンサCに電力が供給されないが、予め定めた値の大容量の補助電源用コンデンサCを備えているため、補助電源用コンデンサCの端子電圧は図5(E)に示すように低下の傾向にあるが送給装置内蔵制御電源SPは安定した動作をする。 [0052] In the welding period T3, during a short circuit between the consumable electrode 2 and the workpiece 1 is repeated circuiting and arcing "short circuit transfer" is no power supplied to the temporarily auxiliary power for capacitor C, due to the provision of a capacitor C for auxiliary power of a large capacity of a predetermined value, the terminal voltage of the auxiliary power supply capacitor C Figure 5 (E) tends to decrease as shown in feeder internal control power SP is a stable operation. 【0053】図5に示す時刻t=t4において、トーチスイッチ起動信号TsがLowレベルになると、アンチスティック期間になり送給モータMの回転が減速して消耗性電極2の送給が停止し、消耗性電極2と被加工物1 [0053] At time t = t4 shown in FIG. 5, when the torch switch activation signal Ts becomes Low level, feed rotation of feed motor M becomes anti stick period is decelerated consumable electrode 2 is stopped, a consumable electrode 2 workpiece 1
との「短絡移行」が終了する。 "Short-circuit transfer" of the ends. このアンチスティック期間T4の間、アーク電圧によって補助電源用コンデンサCに電力が供給される。 During this anti-stick period T4, the electric power is supplied to the capacitor C for auxiliary power by the arc voltage. また、上記トーチスイッチ起動信号Tsが時刻t=t4にLowレベルになると、第2 Further, when the torch switch activation signal Ts is Low level at time t = t4, the second
の中央演算処理回路CPU2は、電磁弁駆動信号S2を予め定めた値のアフタフロー期間T5を設けて、アフタフロー期間T5の間、電磁弁SOLをONさせる。 A central processing unit CPU2 of, by providing the after flow period T5 of a predetermined value the electromagnetic valve drive signal S2, during the after-flow period T5, causing ON the solenoid valve SOL. 【0054】図5に示す時刻t=t6において、出力制御回路SC2はインバータ駆動信号IrをLowレベルにしてインバータ回路INVの動作を停止させて、溶接待機中出力制御電源PSの出力(保護特別低電圧)に切り換えて、溶接待機期間T7の間、補助電源用コンデンサCに電力を供給する。 [0054] At time t = t6 shown in FIG. 5, the output control circuit SC2 is to stop the operation of the inverter circuit INV to the inverter drive signal Ir to the Low level, the welding output of the standby power control power PS (Protection Extra Low switching voltage), during welding waiting period T7, and supplies electric power to the capacitor C for auxiliary power. 【0055】本発明では、スペクトル拡散通信方式(S [0055] In the present invention, the spread spectrum communication system (S
pread Spectrum)の代表例である直接拡散方式(Direct Spread)を使用しているが、上記スペクトル拡散通信方式を周波数ホッピング方式、チャープ方式及びそれらを融合したハイブリッド方式にしてもよい。 pread Spectrum) but using typical example is a direct spread system (Direct Spread) of the spread spectrum communication system frequency hopping may be a chirp method and the hybrid method that combines them. 【0056】 【発明の効果】本発明によれば、溶接電源とワイヤ送給装置との間のパワーケーブルを経由して、上記ワイヤ送給装置から溶接電源にスペクトル拡散通信方式によって各制御信号を供給し、逆に溶接電源からワイヤ送給装置の送給装置内蔵制御電源にパワーケーブルを経由して電力が供給できるので、(1)ワイヤ送給装置用制御ケーブル及びリモコン装置用制御ケーブルが不要となり、ワイヤ送給装置の移動が容易になり、さらに、制御ケーブルの断線等の原因が取り除かれるので溶接作業の効率及び溶接品質が大幅に向上できる。 [0056] According to the present invention, via a power cable between the welding power supply and wire feeder, each control signal by spread spectrum communication system to the welding power supply from the wire feeder fed, can be supplied with power via the power cable from the welding power source to reverse the delivery device embedded control power wire feeder, unnecessary (1) the wire feeder control cable and a remote control device for control cable next, the movement of the wire feeder is facilitated, further, efficiency and weld quality of welding because the cause of disconnection or the like of the control cable removed can be greatly improved. (2)スペクトル拡散通信方式により、多くの情報が送受信できるために、制御線を増やすこともなく溶接電源のフロントパネルにあるすべての操作をワイヤ送給装置側で制御することも可能になる。 (2) spread spectrum communication system, in order to be able to send and receive a lot of information, it becomes possible all operations on the front panel of a welding power source without increasing the control line to control the wire feeder side. (3)ノイズ環境がきわめて悪い溶接現場でノイズに強い信頼性の高い情報伝達が可能となる。 (3) noise environment is made possible a strong reliable information transmitted to the noise in a very bad welding site.

【図面の簡単な説明】 【図1】当該出願に係る発明の特徴を最もよく表す図である。 BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a best represents FIGS features of the invention according to the application. 【図2】図2は、従来技術の消耗電極式アーク溶接装置の接続図である。 Figure 2 is a connection diagram of a prior art consumable electrode type arc welding device. 【図3】図3は、図2に示す従来技術の消耗電極式アーク溶接装置の動作を説明するためのタイミング図である。 Figure 3 is a timing diagram illustrating the operation of the prior art consumable electrode type arc welding apparatus shown in FIG. 【図4】図4は、本発明の消耗電極式アーク溶接装置の接続図である。 Figure 4 is a connection diagram of a consumable electrode arc welding device of the present invention. 【図5】図5は、図4に示す消耗電極式アーク溶接装置の動作を説明するためのタイミング図である。 Figure 5 is a timing diagram illustrating the operation of the consumable electrode type arc welding apparatus shown in FIG. 【図6】図6は、直接拡散方式の詳細図である。 Figure 6 is a detailed view of the direct spread system. 【図7】図7は、図6に示す直接拡散方式の動作を説明するための波形図である。 Figure 7 is a waveform diagram for explaining the operation of the direct spread system shown in FIG. 【図8】図4の本発明の消耗電極式アーク溶接装置の接続図に接地線を追加した図である。 8 is a diagram obtained by adding the ground wire to the connection diagram of a consumable electrode arc welding device of the present invention in FIG. 【符号の説明】 1 被加工物2 消耗性電極3 送給ロール4 第1のパワーケーブル5 第2のパワーケーブル6 起動信号用制御線7 モータ用制御線8 電磁弁用制御線9 GND線10 ワイヤ送給装置用制御ケーブル11 リモコン制御用電源線12 溶接電流設定用制御線13 溶接電圧設定用制御線14 リモコン制御用GND線15 インチング用制御線16 リモコン装置用制御ケーブルAC 三相交流商用電源BF バンドパスフィルタC 補助電源用コンデンサCI クレータ電流設定器CV クレータ電圧設定器1C 1次変調回路2C 2次変調回路CPU 中央演算処理回路CPU2 第2の中央演算処理回路DE 1次変調波復調回路DE2 第2の1次変調波復調回路DL 直流リアクトルDM 拡散符号発生回路DR1 1次整流回路DR2 2次 [EXPLANATION OF SYMBOLS] 1 workpiece 2 consumable electrode 3 feed roll 4 first power cable 5 second power cable 6 starting signal for the control line 7 the motor control line 8 solenoid valve control line 9 GND line 10 wire feeder control cable 11 remote control power supply line 12 welding current setting control line 13 the welding voltage setting control line 14 remote controlling GND line 15 control cable AC three-phase AC commercial power supply inching control line 16 remote controller BF bandpass filter C auxiliary power supply capacitor CI crater current setter CV crater voltage setter 1C 1 primary modulation circuit 2C 2 primary modulation circuit CPU central processing unit CPU2 second central processing circuit DE 1 primary modulation wave demodulation circuit DE2 second primary modulated wave demodulating circuit DL DC reactor DM spreading code generation circuit DR1 primary rectification circuit DR2 2-order 流回路DR3 補助電源整流回路DR4 ダイオード2D 2次復調回路GA 送給モータ制御回路GC ガスチェックスイッチLD 表示部ID 出力電流検出回路IR インバータ駆動回路IT インチングスイッチINT 主変圧器INV インバータ回路M 送給モータMS 制御電源アセンブリィMO 信号変調回路MO2 第2の信号変調回路PS 溶接待機中出力制御電源R 電流制限用抵抗器RF 搬送波発生回路REM リモコン装置SC (制御ケーブル使用の)出力制御回路SC2 (制御ケーブル不要の)出力制御回路SD 逆拡散復調回路SD2 第2の逆拡散復調回路SP 送給装置内蔵制御電源SI 拡散変調回路SI2 第2の拡散変調回路SOL 電磁弁SS 同期回路SW 電磁弁駆動回路SW1 電磁弁開閉スイッチTO 電源投入中供給補助 Flow circuit DR3 auxiliary power rectifier circuit DR4 diode 2D 2 primary demodulating circuit GA feed motor control circuit GC gas check switch LD display unit ID output current detection circuit IR inverter driver circuit IT inching switch INT main transformer INV inverter circuit M feed motor MS control power assembly I MO signal modulation circuit MO2 second signal modulation circuit in the PS welding standby output control power supply R current limiting resistor RF carrier generator circuit REM remote controller SC (control cable) output control circuit SC2 (control cable unnecessary) output control circuit SD despreading demodulator SD2 second despreading demodulation circuit SP delivery device embedded control power SI spreading modulation circuit SI2 second spreading modulation circuit SOL solenoid valve SS synchronizing circuit SW solenoid valve driving circuit SW1 electromagnetic supplying auxiliary in the valve switch TO power-on 圧器TO2 溶接待機中供給補助変圧器TH 溶接トーチTS トーチスイッチTR 拡散信号結合回路TR2 第2の拡散信号結合回路VD 出力電圧検出回路WI 溶接電流設定器WP 溶接電源出力回路WV 溶接電圧設定器WER (従来技術の制御ケーブル使用の)溶接電源WER2 (本発明に使用する制御ケーブル不要の)溶接電源WSR (従来技術の制御ケーブル使用の)ワイヤ送給装置WSR2 (本発明に使用する制御ケーブル不要の)ワイヤ送給装置Ci クレータ電流設定信号Ct 溶接電源起動信号Cp 出力電圧設定信号Cr 溶接電流検出・溶接監視送信信号Ck 溶接電源起動・出力電圧設定用送信信号Cv クレータ電圧設定信号De 溶接電源起動・出力電圧設定用受信信号Dm 拡散符号信号2d 2次復調信号De2 溶接電流 Divider TO2 during welding standby supply auxiliary transformer TH welding torch TS torch switch TR spread signal coupling circuit TR2 second spread signal coupling circuit VD output voltage detection circuit WI welding current setter WP welding power-supply output circuit WV welding voltage setter WER ( prior art control cable use) welding power supply WER2 (unnecessary control cables used in the present invention) of the control cable used in the welding power supply WSR (prior art) wire feeder WSR2 (unnecessary control cables used in the present invention) wire feeder Ci crater current setting signal Ct welding power supply activation signal Cp the output voltage setting signal Cr welding current detection and welding monitoring transmission signal Ck welding power-up and output voltage setting transmission signal Cv crater voltage setting signal De welding power source start-output receiving voltage setting signal Dm spreading code signal 2d 2 primary demodulating signal De2 welding current 出・溶接監視受信信号Ga 送給モータ用出力信号Gc ガスチェック信号Id 出力電流検出信号It インチング信号Ir インバータ駆動信号Mo 1次変調波信号Mo2 第2の1次変調波信号Sa 送給モータ制御信号Sc 出力制御信号Sd 逆拡散復調信号Sd2 第2の逆拡散復調信号Si 拡散変調送信信号Si2 第2の拡散変調送信信号So 電磁弁ON用供給電圧Sp 第2の中央演算処理回路用供給電圧Ss 同期信号Sk 送給モータ制御回路用供給電圧S1 溶接電源内蔵電磁弁開閉信号S2 電磁弁駆動信号Ts トーチスイッチ起動信号Tr 拡散変調受信信号Tr2 第2の拡散変調受信信号T1 トーチスイッチ起動期間T2 無負荷電圧出力期間T3 溶接期間T4 アンチスティック期間T5 アフタフロー期間T6、T7 溶接待機 De Welding monitoring received signal Ga for feed motor output signal Gc gas check signal Id output current detection signal It inching signal Ir inverter drive signal Mo first modulation wave signal Mo2 second primary modulated wave signal Sa feed motor control signal Sc output control signal Sd despread demodulated signal Sd2 second despread demodulated signal Si diffusion modulation transmission signal Si2 second spreading modulated transmission signal So supply voltage Ss synchronous supplying solenoid valve ON voltage Sp second central processing circuit signal Sk feed motor control circuit for supply voltage S1 welding power source internal solenoid valve closing signal S2 solenoid valve driving signal Ts torch switch activation signal Tr spread modulated reception signal Tr2 second spread modulated reception signal T1 torch switch activation period T2 no-load voltage output period T3 welding period T4 anti stick period T5 after-flow period T6, T7 welding standby 間Vd 出力電圧検出信号Wi 溶接電流設定信号Wv 溶接電圧設定信号Wr 溶接電流検出信号Ww 溶接監視信号 During Vd output voltage detection signal Wi welding current setting signal Wv welding voltage setting signal Wr welding current detection signal Ww Welding monitoring signal

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Claims (1)

  1. 【特許請求の範囲】 【請求項1】 溶接用電力を出力する溶接電源出力回路を備えた溶接電源と溶接する位置の移動に伴って溶接作業者が持ち運びするワイヤ送給装置とに分離されている消耗電極式アーク溶接装置において、溶接電源に溶接待機中に送給モータ及び電磁弁を制御する制御電圧を第1 [Claims 1] is separated into wire feeder and for carrying the welding operator in accordance with the movement of the position to be welded and the welding power supply with the welding power source output circuit for outputting the welding power in consumable electrode arc welding system it is, a control voltage for controlling the feed motor and the solenoid valve during the welding standby to the welding power supply first
    のパワーケーブルと第2のパワーケーブル又は接地線とに供給する溶接待機中出力制御電源を備えると共に、ワイヤ送給装置に第1のパワーケーブルと第2のパワーケーブル又は接地線から供給される、前記制御電圧を入力する送給装置内蔵制御電源と、前記送給装置内蔵制御電源の出力電圧及びトーチスイッチ起動信号を入力されると送給モータ制御信号及び電磁弁駆動信号を出力する第2の中央演算処理回路と、前記送給装置内蔵制御電源の送給モータ制御回路用供給電圧及び送給モータ制御信号を入力とする送給モータ制御回路と、上記送給装置内蔵制御電源の電磁弁ON用供給電圧及び電磁弁駆動信号を入力とする電磁弁駆動回路及び電磁弁と、前記溶接電源とワイヤ送給装置との間の各制御信号の送信及び受信を第1のパワーケー Provided with a power cable and welding Wait output control power supply to a second power cable or ground wire, is supplied from the first power cable and a second power cable or the ground line to the wire feeder, a feed device embedded control power inputting the control voltage, the feeder internal control power supply output voltage and the torch switch activation signals are input the feed motor control signal and a second outputting an electromagnetic valve drive signal a central processing circuit, and a feed motor control circuit for receiving the supply voltage and feed motor control signal for feed motor control circuit of the feed device embedded control power, the electromagnetic valve ON of the delivery device embedded control power a solenoid valve driving circuit and a solenoid valve for receiving the use supply voltage and the electromagnetic valve drive signal, the welding power supply and the first Pawake the transmission and reception of control signals between the wire feeder ルを経由してスペクトル拡散通信方式で送受信するスペクトル拡散通信部を備えた消耗電極式アーク溶接装置。 Consumable electrode type arc welding apparatus having a spread spectrum communication unit for transmitting and receiving via the Le in the spread spectrum communication system. 【請求項2】 溶接用電力を出力する溶接電源出力回路を備えた溶接電源と溶接する位置の移動に伴って溶接作業者が持ち運びするワイヤ送給装置とに分離されている消耗電極式アーク溶接装置において、溶接電源に溶接待機中に送給モータ及び電磁弁を制御する制御電圧を第1 2. A welder to carry to wire feeder and the separated being in which consumable electrode arc welding in accordance with the movement of the position to be welded and the welding power supply with the welding power source output circuit for outputting the welding power in the apparatus, a control voltage for controlling the feed motor and the solenoid valve during the welding standby to the welding power supply first
    のパワーケーブルと第2のパワーケーブル又は接地線とに供給する溶接待機中出力制御電源を備えると共に、ワイヤ送給装置に第1のパワーケーブルと第2のパワーケーブル又は接地線から制御電圧を入力する送給装置内蔵制御電源を備えて、前記溶接電源は、第1のパワーケーブルに結合させてスペクトル拡散通信方式で拡散変調信号を送受信する拡散信号結合回路と、受信した拡散変調受信信号を逆拡散して復調を行う逆拡散復調回路と、復調した逆拡散復調信号を中央演算処理回路に対応した信号に復調する1次変調波復調回路と、中央演算処理回路から出力する溶接電流検出・溶接監視信号を1次変調する信号変調回路と、1次変調波信号をスペクトル拡散する拡散変調回路と、前記1次変調波復調回路によって復調された溶接電源 Power cable and provided with a welding Wait output control power supply to a second power cable or ground wire, enter the first power cable and the control voltage from the second power cable or the ground line to the wire feeder It includes a feeding device embedded control power to the welding power supply includes a spread signal coupling circuit for transmitting and receiving spread-spectrum modulated signal in the spread spectrum communication system by coupling to a first power cable, inverse spread modulation signal received despreading demodulation circuit diffusion to perform demodulation, and a primary modulated wave demodulating circuit for demodulating the despread demodulation signal demodulated into signals corresponding to the central processing unit, a welding output from the central processing circuit current detection and welding a signal modulation circuit for primary modulation monitor signal, a spread modulation circuit for spread spectrum first modulation wave signal, the welding power supply demodulated by the first modulation wave demodulation circuit 動・出力電圧設定用受信信号の値に応じて演算して溶接電源起動信号と出力電圧設定信号とに分離して出力する中央演算処理回路と、前記溶接電源起動信号が入力されると動作を開始し、出力電圧設定信号、出力電圧検出信号及び出力電流検出信号の値に応じて演算処理を行って溶接電源出力回路の出力を制御する出力制御回路とを備え、前記ワイヤ送給装置は、トーチスイッチ起動信号が入力されると電磁弁駆動信号を出力し、溶接電流設定器が出力する溶接電流設定信号及びクレータ電流設定器が出力するクレータ電流設定信号に応じて送給モータ制御信号を出力し、溶接電圧設定器が出力する溶接電圧設定信号及びクレータ電圧設定器が出力するクレータ電圧設定信号に応じて、溶接電源起動・出力電圧設定用送信信号を出力する第 A central processing circuit calculates and welding power supply activation signal is separated into an output voltage setting signal output according to the value of the dynamic-output voltage setting received signal, the operation and the welding power supply activation signal is input started, with the output voltage setting signal, and an output control circuit for performing arithmetic processing for controlling the output of the welding power source output circuit according to the value of the output voltage detection signal and the output current detection signal, the wire feeder is When the torch switch activation signal is inputted outputs a solenoid valve drive signal, the welding current setting unit outputs a welding current setting signal and the crater current setter output a supply motor control signal sent in response to the crater current setting signal to be output and, the welding voltage setting signal and the crater voltage setter welding voltage setting unit outputs in response to crater voltage setting signal output, outputs a transmission signal for the welding power-up and output voltage setting の中央演算処理回路と、前記溶接電源起動・出力電圧設定用送信信号を1 A central processing circuit, a transmission signal for the welding power source start-output voltage setting 1
    次変調する第2の信号変調回路と、第2の1次変調波信号をスペクトル拡散する第2の拡散変調回路と、第1のパワーケーブル4に結合させてスペクトル拡散通信方式で拡散変調信号を送受信する第2の拡散信号結合回路と、受信した第2の拡散変調受信信号を逆拡散して復調を行う第2の逆拡散復調回路と、復調した第2の逆拡散復調信号を第2の中央演算処理回路に対応した信号に復調する第2の1次変調波復調回路と、前記送給モータ制御信号を入力して送給モータを駆動させる送給モータ制御回路と、電磁弁駆動信号を入力して電磁弁SOLをO A second signal modulation circuit that order modulation, and the second spread modulation circuit for spread spectrum second primary modulated wave signal, a spread modulation signal in the spread spectrum communication system by coupling to a first power cable 4 a second spread signal coupling circuit for transmitting and receiving, and a second despreading demodulation circuit a second spread-modulated received signal performs despreading and demodulating the received second despread demodulated signal a second demodulated a second primary modulated wave demodulating circuit for demodulating the signal corresponding to the central processing circuit, and a feed motor control circuit for driving the feed motor by entering the feed motor control signal, the electromagnetic valve drive signal O the solenoid valve SOL by entering
    N・OFFする電磁弁駆動回路とを備え、前記送給装置内蔵制御電源が入力する制御電圧は、溶接待機期間中は溶接待機中出力制御電源から供給され、溶接期間及びアンチスチィック期間中はアーク電圧から供給され、無負荷電圧出力期間中は溶接電源の無負荷電圧から供給される消耗電極式アーク溶接装置。 And an electromagnetic valve drive circuit to N · OFF, the control voltage the feeder internal control power inputs during weld waiting period is supplied from the output control power supply during a welding stand, during the welding period and Anchisuchiikku period is supplied from the arc voltage, during no-load voltage output period consumable electrode type arc welding device supplied from the no-load voltage of the welding power source. 【請求項3】 溶接用電力を出力する溶接電源出力回路を備えた溶接電源と溶接する位置の移動に伴って溶接作業者が持ち運びするワイヤ送給装置とに分離されている消耗電極式アーク溶接装置において、溶接電源に溶接待機中に送給モータ及び電磁弁を制御する制御電圧を第1 3. A welder to carry to wire feeder and the separated being in which consumable electrode arc welding in accordance with the movement of the position to be welded and the welding power supply with the welding power source output circuit for outputting the welding power in the apparatus, a control voltage for controlling the feed motor and the solenoid valve during the welding standby to the welding power supply first
    のパワーケーブルと第2のパワーケーブル又は接地線とに供給する溶接待機中出力制御電源を備えると共に、ワイヤ送給装置に、第1のパワーケーブルと第2のパワーケーブル又は接地線から制御電圧を入力する送給装置内蔵制御電源を備えて、前記溶接電源は、第1のパワーケーブルに結合させてスペクトル拡散通信方式で拡散変調信号を送受信する拡散信号結合回路と、受信した拡散変調受信信号を逆拡散して復調を行う逆拡散復調回路と、 Provided with a power cable and welding Wait output control power supply to a second power cable or a ground line, a wire feeder, a first power cable and the control voltage from the second power cable or a ground line includes a feeding device embedded control power to be input, the welding power supply includes a spread signal coupling circuit for transmitting and receiving spread-spectrum modulated signal in the spread spectrum communication system by coupling to a first power cable, the spread modulation signal received despreading demodulation circuit for demodulating despread by,
    復調した逆拡散復調信号を中央演算処理回路に対応した信号に復調する1次変調波復調回路と、中央演算処理回路から出力する溶接電流検出・溶接監視信号を1次変調する信号変調回路と、1次変調波信号をスペクトル拡散する拡散変調回路と、前記1次変調波復調回路によって復調された溶接電源起動・出力電圧設定用受信信号の値に応じて演算して溶接電源起動信号と出力電圧設定信号とに分離して出力する中央演算処理回路と、前記溶接電源起動信号が入力されると動作を開始し、出力電圧設定信号、出力電圧検出信号及び出力電流検出信号の値に応じて演算処理を行って溶接電源出力回路の出力を制御する出力制御回路とを備え、前記ワイヤ送給装置は、送給装置内蔵制御電源が供給する第2の中央演算処理回路用供給電圧を電源と A primary modulation wave demodulation circuit for demodulating the despread demodulation signal demodulated into signals corresponding to the central processing circuit, a signal modulation circuit for primary modulating the welding current detection and welding monitoring signal output from the central processing unit, and spread modulation circuit for spread spectrum first modulation wave signal, the first modulation wave is calculated in accordance with the value of the demodulated welding power source start-output voltage setting received signal by the demodulating circuit welding power activation signal and the output voltage a central processing circuit for outputting separated into a setting signal, the start operating the welding power-up signal is input, the output voltage setting signal, according to the value of the output voltage detection signal and the output current detection signal calculation and an output control circuit for controlling the output of the welding power source output circuit performs processing, the wire feeder includes a power supply and a second supply voltage for the central processing circuit feeding device embedded control power supplies て、トーチスイッチ起動信号が入力されると電磁弁駆動信号を出力し、溶接電流設定器が出力する溶接電流設定信号及びクレータ電流設定器が出力するクレータ電流設定信号に応じて送給モータ制御信号を出力し、溶接電圧設定器が出力する溶接電圧設定信号及びクレータ電圧設定器が出力するクレータ電圧設定信号に応じて、溶接電源起動・出力電圧設定用送信信号を出力する第2の中央演算処理回路と、前記溶接電源起動・出力電圧設定用送信信号を1次変調する第2の信号変調回路と、第2の1次変調波信号をスペクトル拡散する第2の拡散変調回路と、第1のパワーケーブルに結合させてスペクトル拡散通信方式で拡散変調信号を送受信する第2の拡散信号結合回路と、受信した第2の拡散変調受信信号を逆拡散して復調を行う第 Te, the torch switch activation signal is inputted outputs a solenoid valve drive signal, the welding current setting signal and the crater current setter is feed motor control signal in response to the crater current setting signal outputted welding current setter outputs outputs, in response to the crater voltage setting signal welding voltage setting signal and the crater voltage setter outputs output from the welding voltage setting unit, the second central processing that outputs a transmission signal for the welding power-up and output voltage setting circuit and a second signal modulation circuit for the welding power source start-output voltage primary modulation of transmission signals set, a second spread modulation circuit for spread spectrum second primary modulated wave signal, a first a second spread signal coupling circuit by coupling to a power cable for transmitting and receiving spread-spectrum modulated signal in the spread spectrum communication system, a second spreading modulation receiving signal despreading to the received first demodulates の逆拡散復調回路と、復調した第2の逆拡散復調信号を第2の中央演算処理回路に対応した信号に復調する第2の1次変調波復調回路と、前記送給装置内蔵制御電源が供給する送給モータ制御回路用供給電圧を電源として、前記送給モータ制御信号を入力して送給モータを駆動させる送給モータ制御回路と、前記送給装置内蔵制御電源が供給する電磁弁ON用供給電圧を電源として、電磁弁駆動信号を入力して電磁弁をON・OFFする電磁弁駆動回路とを備え、 Despreading demodulation circuit, a second despread demodulated signal and the second primary modulated wave demodulating circuit for demodulating the signal corresponding to the second central processing unit, said feeder internal control power supply is demodulated the supply voltage for the feed motor control circuit for supplying a power source, the feed motor control signal and the feed motor control circuit to input to drive the feed motor, the feed device embedded control power electromagnetic valve ON and supplies the use supply voltage as a power supply, an electromagnetic valve drive circuit for ON · OFF the solenoid valve to enter the electromagnetic valve drive signal,
    前記送給装置内蔵制御電源が入力する制御電圧は、溶接待機期間中は溶接待機中出力制御電源から供給され、溶接期間及びアンチスチィック期間中はアーク電圧から供給され、無負荷電圧出力期間中は溶接電源の無負荷電圧から供給される消耗電極式アーク溶接装置。 Control voltage the feeder internal control power inputs during weld waiting period is supplied from the output control power supply during a welding waiting, a welding period and during Anchisuchiikku period is supplied from the arc voltage, the no-load voltage output period during consumable electrode type arc welding device supplied from the no-load voltage of the welding power source. 【請求項4】 請求項2又は請求項3に記載の溶接待機中出力制御電源から供給される出力電圧が、溶接待機期間中は保護特別低電圧(PELV)の規格値である実効値AC25V又はリップル無しDC60V以下の予め定めた値の電圧である消耗電極式アーク溶接装置。 Wherein the output voltage supplied from the welding Wait output control power supply according to claim 2 or claim 3, during welding waiting period effective value AC25V a standard value of the Protected Extra Low Voltage (PELV) or consumable electrode type arc welding device is a voltage ripple without DC60V following a predetermined value. 【請求項5】 請求項2又は請求項3に記載のスペクトル拡散通信方式が、直接拡散方式である消耗電極式アーク溶接装置。 5. A spread spectrum communication system according to claim 2 or claim 3, consumable electrode type arc welding device is a direct spread system. 【請求項6】 請求項2又は請求項3に記載の送給装置内蔵制御電源が、ダイオードを経由して第1のパワーケーブル及び第2のパワーケーブルとに接続されると共に、前記送給装置内蔵制御電源の両端に電力供給の変動に対して安定した電力を供給する補助電源用コンデンサが接続されて、送給モータ及び電磁弁を制御する回路に第2の中央演算処理回路用供給電圧を出力し、送給モータを制御する回路に送給モータ制御回路用供給電圧を出力し、電磁弁SOLをON・OFFする回路に電磁弁O With feeder internal control power supply according to claim 6] according to claim 2 or claim 3 is connected to a first power cable and a second power cable through the diode, the feeder built stable auxiliary power supply capacitor for supplying electric power is connected to both ends fluctuation of the power supply to the control power, the second supply voltage central processing circuit to a circuit for controlling the feed motor and the solenoid valves outputs, and outputs the supply voltage feed motor control circuit to a circuit for controlling the feed motor, a solenoid valve to a circuit for oN · OFF the solenoid valve SOL O
    N用供給電圧を出力する消耗電極式アーク溶接装置。 Consumable electrode type arc welding device for outputting a supply voltage for N. 【請求項7】 請求項2又は請求項3記載の溶接待機中出力制御電源が、短絡時の出力電流値が3A以下である消耗電極式アーク溶接装置。 7. A welding Wait output control power supply according to claim 2 or claim 3, wherein the output current value at the time of short circuit is 3A or less consumable electrode type arc welding device. 【請求項8】 請求項2又は請求項3に記載のスペクトル拡散通信方式が、周波数ホッピング方式又はチャープ方式又は前記各組の方式を融合したハイブリット方式である消耗電極式アーク溶接装置。 8. A spread spectrum communication system according to claim 2 or claim 3, frequency hopping or chirp method or the a hybrid scheme that combines each set of system consumable electrode type arc welding device.
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