JP3106974B2 - Arc welding machine - Google Patents
Arc welding machineInfo
- Publication number
- JP3106974B2 JP3106974B2 JP08234012A JP23401296A JP3106974B2 JP 3106974 B2 JP3106974 B2 JP 3106974B2 JP 08234012 A JP08234012 A JP 08234012A JP 23401296 A JP23401296 A JP 23401296A JP 3106974 B2 JP3106974 B2 JP 3106974B2
- Authority
- JP
- Japan
- Prior art keywords
- welding machine
- power supply
- base material
- arc welding
- voltage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Arc Welding Control (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、直流高電圧による
接触、非接触点弧式のアーク溶接機、更に詳しくは他機
との母材線共通及び並列運転時にあって他機のアークス
タートを確実にしたアーク溶接機に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an arc welding machine of a contact type and a non-contact ignition type using a high DC voltage, and more particularly, to an arc start of another machine in common and parallel operation of a base wire with another machine. It relates to a secure arc welding machine.
【０００２】[0002]
【従来の技術】直流高電圧電源を具備するアーク溶接機
について、従来例を図５、図６にて説明する。図５は直
流高電圧発生装置を用いたアーク溶接機の構成図で、１
は直流電源装置、２は直流高電圧電源、３は単方向整流
素子、４は電極、５は母材、６は直流電源装置１と直流
高電圧電源２を起動する起動スイッチ、７は単方向整流
素子３に並列接続した電圧クランプ素子、８は直流高電
圧電源２と、単方向整流素子３を介して直流電源装置１
にそれぞれ接続した母材端子、９は電極４のトーチ端子
で、直流電源装置１、直流高電圧電源２の正側に接続し
てある。そして、直流高電圧電源２による直流高電圧印
加の際、単方向整流素子３は、直流高電圧電源２が発生
する直流高電圧の直流電源装置１への侵入を防ぐ。2. Description of the Related Art A conventional example of an arc welding machine having a DC high-voltage power supply will be described with reference to FIGS. FIG. 5 is a configuration diagram of an arc welding machine using a DC high voltage generator.
Is a DC power supply, 2 is a DC high-voltage power supply, 3 is a unidirectional rectifying element, 4 is an electrode, 5 is a base material, 6 is a start switch for starting the DC power supply 1 and the DC high-voltage power supply 2, and 7 is a unidirectional. A voltage clamp element 8 connected in parallel with the rectifier 3 is a DC high-voltage power supply 2 and a DC power supply 1 via the unidirectional rectifier 3.
Are connected to the positive terminal of the DC power supply 1 and the DC high voltage power supply 2, respectively. When a DC high voltage is applied by the DC high voltage power supply 2, the unidirectional rectifier 3 prevents the DC high voltage generated by the DC high voltage power supply 2 from entering the DC power supply 1.
【０００３】起動スイッチ６が押されると直流電源装置
１と直流高電圧電源２が動作し、直流電源装置１から電
極４と母材５間に給電される電力に直流高電圧電源２が
発生した直流高電圧を重畳する。そして、非接触で電極
４と母材５間に放電を開始し、直流電源装置１からの給
電電力によりアークが起動される。When the start switch 6 is pressed, the DC power supply 1 and the DC high-voltage power supply 2 operate, and the DC high-voltage power supply 2 is generated in the power supplied from the DC power supply 1 between the electrode 4 and the base material 5. DC high voltage is superimposed. Then, a discharge is started between the electrode 4 and the base material 5 in a non-contact manner, and an arc is activated by the power supplied from the DC power supply 1.
【０００４】[0004]
【発明が解決しようとする課題】ここで、図６に示すよ
うに上記アーク溶接機Ａを他のアーク溶接機Ｂ（以下他
機という）と母材５を共通及び並列運転させた場合、他
機Ｂの母材端子８、ケースアース１１間にあるコンデン
サ１２が直流高電圧電源２から発生した直流高電圧を充
電し、他機Ｂのアークスタートがしない恐れを有してい
た。すなわち、溶接施工の現場において、溶接機を母材
線共通運転することが頻繁に行われたり、溶接機の使用
率及び溶接電流の確保のために、溶接機を並列にて運転
することがある。上記アーク溶接機Ａと他機Ｂ（通常、
溶接機には、ノイズ除去用等の目的として出力端である
母材端子８、トーチ端子９にコンデンサ１３、抵抗１４
及び、ケースアース間にコンデンサ１２が接続されてい
る。）との母材線共通及び並列運転においては、直流高
電圧電源２から発生した直流高電圧が、パワーケーブル
１５、他機Ｂの母材端子８を介し、母材端子・ケースア
ース間のコンデンサ１２を充電させ、電極・母材間に直
流高電圧が印加されなくなり、アークスタートしないと
いう恐れがあった。Here, as shown in FIG. 6, when the above-described arc welding machine A and another arc welding machine B (hereinafter referred to as "other machine") are operated in common and in parallel with each other, The capacitor 12 between the base material terminal 8 of the machine B and the case ground 11 charges the high DC voltage generated from the DC high voltage power supply 2, and there is a possibility that the arc start of the other machine B does not occur. That is, at the site of welding work, the welding machine is frequently operated in common with the base wire, or the welding machines may be operated in parallel in order to secure the usage rate and welding current of the welding machine. . The above arc welding machine A and other machine B (usually,
The welding machine has a capacitor 13 and a resistor 14 connected to a base material terminal 8 and a torch terminal 9 which are output terminals for the purpose of noise removal or the like.
The capacitor 12 is connected between the case grounds. In the case of common operation and parallel operation of the base wire and the DC high voltage generated from the DC high voltage power supply 2, the capacitor between the base material terminal and the case ground via the power cable 15 and the base material terminal 8 of the other machine B. 12 was charged, DC high voltage was not applied between the electrode and the base material, and there was a fear that arc start would not occur.
【０００５】本発明は並列運転時の他機がアークスター
トを確実に行うことのできるアーク溶接機を提供するこ
とを目的としたものである。[0005] It is an object of the present invention to provide an arc welding machine capable of reliably performing an arc start by another machine during parallel operation.
【０００６】[0006]
【課題を解決するための手段】本発明では、この課題を
解決するために、出力とケースアース間にコンデンサが
接続された他の溶接機と共通接続される母材と、この母
材と電極間に直流高電圧を印加してこの間の絶縁を破壊
してアークを発生させる直流高電圧電源を設けるととも
に、前記母材に接続された端子と溶接機のケースアース
間に放電経路を設けたものであり、この放電経路に接続
する素子として、抵抗、インダクタンスまたは電圧クラ
ンプ素子を用いるものである。According to the present invention, to solve this problem , a capacitor is provided between the output and the case ground.
A base material that is commonly connected to other connected welding machines, and
High DC voltage is applied between the material and the electrode to break the insulation between them
A DC high-voltage power supply to generate arcs
The terminal connected to the base material and the case ground of the welding machine
All SANYO provided with a discharge path between the connection to the discharge path
Resistance, inductance or voltage class
Ru der those using the amplifier element.
【０００７】[0007]
【発明の実施の形態】上記構成において、母材端子・ケ
ースアース間に抵抗、インダクタンス、電圧クランプ素
子等の放電経路を設けることにより、他機との母材線共
通及び並列運転時、コンデンサによる直流高電圧の充電
もなくなり、所定の直流高電圧を確保できるため安定し
たアークスタートを得ることができる。DESCRIPTION OF THE PREFERRED EMBODIMENTS In the above configuration, a discharge path such as a resistor, an inductance, and a voltage clamp element is provided between a base material terminal and a case ground, so that a base material line is shared with another machine and during parallel operation, a capacitor is used. There is no DC high voltage charging, and a predetermined DC high voltage can be secured, so that a stable arc start can be obtained.
【０００８】（実施の形態１）以下、本発明アーク溶接
機の実施の形態について説明する。(Embodiment 1) Hereinafter, an embodiment of the arc welding machine of the present invention will be described.
【０００９】図１において、放電経路（抵抗、インダク
タンス、電圧クランプ素子等）を設けたアーク溶接機の
主要回路図を示す。符号１から９までは従来技術の図５
で説明した構成、作用と同一なので詳細な説明を省略
し、異なる部分を中心に説明する。１０は本発明の特徴
である放電経路（抵抗、インダクタンス、電圧クランプ
素子等）で、母材端子８と溶接機の金属からなる本体ケ
ースのアース１１の間に設けたものである。このように
母材端子８、ケースのアース１１間に放電経路１０（抵
抗、インダクタンス、電圧クランプ素子等）を設けたこ
とにより、図６でいう他機Ｂとの母材線共通及び並列運
転時、他機Ｂのケースにアースされているコンデンサに
直流高電圧が充電されなくなり、直流高電圧を確保でき
て他機におけるアークも起動することになる。FIG. 1 shows a main circuit diagram of an arc welding machine provided with a discharge path (resistance, inductance, voltage clamp element, etc.). Reference numerals 1 to 9 are those in FIG.
Since the configuration and operation are the same as those described above, detailed description will be omitted, and different portions will be mainly described. Reference numeral 10 denotes a discharge path (resistance, inductance, voltage clamp element, etc.) which is a feature of the present invention, and is provided between the base material terminal 8 and the ground 11 of the main body case made of metal of the welding machine. By providing the discharge path 10 (resistance, inductance, voltage clamp element, etc.) between the base material terminal 8 and the ground 11 of the case in this manner, the base material wire can be shared with the other machine B in FIG. In addition, the capacitor grounded to the case of the other machine B is not charged with the high DC voltage, so that the DC high voltage can be secured and the arc in the other machine is started.
【００１０】なお、図２に示すアーク溶接機は単方向整
流素子３と電圧クランプ素子７の並列回路を直流高電圧
電源２に直接接続した点が図１と異なるがそれ以外の構
成、作用は全く同一である。The arc welding machine shown in FIG. 2 is different from FIG. 1 in that a parallel circuit of a unidirectional rectifying element 3 and a voltage clamping element 7 is directly connected to a DC high voltage power supply 2, but other configurations and operations are different. Exactly the same.
【００１１】（実施の形態２）図３及び図４は直流高電
圧電源２及び単方向整流素子３を溶接負荷の直近に置い
たアーク溶接機の主要回路図を示す。符号１から９まで
は図１、図２で説明した本発明の実施の形態１と構成、
作用効果が同一なので詳細な説明を省略し、異なる部分
を中心に説明する。１６は直流高電圧電源２と、単方向
整流素子３と電圧クランプ素子７から構成される直流高
電圧発生装置である。直流高電圧電源２を溶接負荷の直
近におくことにより、延長ケーブルからの直流高電圧の
リークや、延長ケーブルがもつ分布容量が極めて少なく
なり、溶接施工者にとって感電等による危険性が少なく
なる。(Embodiment 2) FIGS. 3 and 4 are main circuit diagrams of an arc welding machine in which a DC high-voltage power supply 2 and a unidirectional rectifier 3 are placed in the immediate vicinity of a welding load. Reference numerals 1 to 9 are the same as those of the first embodiment of the present invention described with reference to FIGS.
Since the operation and effect are the same, detailed description will be omitted, and different portions will be mainly described. Reference numeral 16 denotes a DC high-voltage generator including the DC high-voltage power supply 2, the unidirectional rectifier 3, and the voltage clamp element 7. By placing the DC high voltage power supply 2 close to the welding load, the leakage of DC high voltage from the extension cable and the distributed capacity of the extension cable are extremely reduced, and the danger of electric shock or the like to the welding installer is reduced.
【００１２】ここで、本発明は、直流高電圧が溶接機外
部に蓄積された場合の放電経路を溶接機内部または、直
流高電圧発生装置内部に設けておくことが主旨である。Here, the purpose of the present invention is to provide a discharge path when a DC high voltage is accumulated outside the welding machine, inside the welding machine or inside the DC high voltage generator.
【００１３】[0013]
【発明の効果】以上の説明から明らかなように、本発明
によれば母材端子・ケースアース間に、放電経路（抵
抗、インダクタンス、電圧クランプ素子等）を設けるこ
とにより、他機との母材線共通及び並列運転時、他機の
コンデンサに直流高電圧が充電されなくなり、所定の直
流高電圧が確保できるため安定したアークスタートを得
ることができる。As is clear from the above description, according to the present invention, by providing a discharge path (resistance, inductance, voltage clamp element, etc.) between the base material terminal and the case ground, the motherboard can be connected to another machine. During common and parallel operation of the wire, the DC high voltage is not charged to the capacitor of the other machine, and a predetermined DC high voltage can be secured, so that a stable arc start can be obtained.
【図１】本発明アーク溶接機の実施形態を示す主要構成
図FIG. 1 is a main configuration diagram showing an embodiment of an arc welding machine of the present invention.
【図２】同アーク溶接機の主要構成図FIG. 2 is a main configuration diagram of the arc welding machine.
【図３】同アーク溶接機の実施の形態２を示す主要構成
図FIG. 3 is a main configuration diagram showing a second embodiment of the arc welding machine.
【図４】同アーク溶接機の主要構成図FIG. 4 is a main configuration diagram of the arc welding machine.
【図５】従来のアーク溶接機の主要構成図FIG. 5 is a main configuration diagram of a conventional arc welding machine.
【図６】従来のアーク溶接機Ａと他機Ｂを並列運転した
時の主要構成図FIG. 6 is a main configuration diagram when a conventional arc welding machine A and another machine B are operated in parallel.
【符号の説明】 １ 直流電源装置 ２ 直流高電圧電源 ４ 電極 ５ 母材 ６ 起動スイッチ ８ 母材端子 ９ トーチ端子 １０ 放電経路 １１ ケースアース １６ 直流高電圧発生装置[Description of Signs] 1 DC power supply 2 DC high voltage power supply 4 Electrode 5 Base material 6 Start switch 8 Base material terminal 9 Torch terminal 10 Discharge path 11 Case ground 16 DC high voltage generator
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭62−134182（ＪＰ，Ａ) 特開 平１−150474（ＪＰ，Ａ) 特開 平２−34277（ＪＰ，Ａ) 特開 昭56−134072（ＪＰ，Ａ) 特開 平３−221265（ＪＰ，Ａ) 特開 昭59−16670（ＪＰ，Ａ) 特開 平９−38771（ＪＰ，Ａ) 実開 昭64−20969（ＪＰ，Ｕ) 特公 昭63−48635（ＪＰ，Ｂ２) (58)調査した分野(Int.Cl.7，ＤＢ名) B23K 9/067 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-62-134182 (JP, A) JP-A-1-150474 (JP, A) JP-A-2-34277 (JP, A) JP-A-56-134 134072 (JP, A) JP-A-3-221265 (JP, A) JP-A-59-16670 (JP, A) JP-A-9-38771 (JP, A) JP-A-64-20969 (JP, U) JP-B-63-48635 (JP, B2) (58) Field surveyed (Int. Cl. 7 , DB name) B23K 9/067
Claims (2)
続された他の溶接機と共通接続される母材と、この母材
と電極間に直流高電圧を印加してこの間の絶縁を破壊し
てアークを発生させる直流高電圧電源を設けるととも
に、前記母材に接続された端子と溶接機のケースアース
間に放電経路を設けたアーク溶接機。1. A capacitor is connected between an output and a case ground.
A base material that is commonly connected to another connected welding machine, and this base material
A DC high-voltage power supply that applies a DC high voltage between the electrodes and breaks insulation between the electrodes to generate an arc is provided, and a discharge path is provided between a terminal connected to the base material and a case ground of the welding machine. Arc welding machine.
インダクタンスまたは電圧クランプ素子を用いる請求項
１記載のアーク溶接機。2. An element connected to a discharge path includes a resistor,
The arc welding machine according to claim 1, wherein an inductance or voltage clamping element is used.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08234012A JP3106974B2 (en) | 1996-09-04 | 1996-09-04 | Arc welding machine |
| CN96117974A CN1050081C (en) | 1995-12-28 | 1996-12-27 | Electric arc welding and arc plasma cutter |
| US08/773,853 US5852278A (en) | 1995-12-28 | 1996-12-27 | Arc welding and arc plasma cutting machines having improved DC high-voltage generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08234012A JP3106974B2 (en) | 1996-09-04 | 1996-09-04 | Arc welding machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1076364A JPH1076364A (en) | 1998-03-24 |
| JP3106974B2 true JP3106974B2 (en) | 2000-11-06 |
Family
ID=16964179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP08234012A Expired - Lifetime JP3106974B2 (en) | 1995-12-28 | 1996-09-04 | Arc welding machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3106974B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5189896B2 (en) * | 2008-05-29 | 2013-04-24 | アスモ株式会社 | Welding apparatus and welding method |
| US10207351B2 (en) * | 2013-03-15 | 2019-02-19 | Illinois Tool Works Inc. | Method and apparatus for providing welding power |
-
1996
- 1996-09-04 JP JP08234012A patent/JP3106974B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH1076364A (en) | 1998-03-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0594888A (en) | Circuit device | |
| JP3106974B2 (en) | Arc welding machine | |
| US6583585B2 (en) | Discharge lamp lighting circuit | |
| JP3209727B2 (en) | Fault-tolerant power supply circuit | |
| JP3317946B2 (en) | Consumable electrode AC arc welding machine | |
| JPH10176643A (en) | Condenser charge/discharge ignition system | |
| JP3045878B2 (en) | Consumable electrode AC arc welding machine | |
| JP3104601B2 (en) | Arc welding machine and plasma cutting machine | |
| JP3382822B2 (en) | Arc start device | |
| JP2896882B2 (en) | Grounding method of static eliminator | |
| JP3333382B2 (en) | Earth circuit and negative ion generator | |
| JP3078150B2 (en) | DC arc welding machine and plasma cutting machine | |
| JPH0750055Y2 (en) | Arc ignition device | |
| JP2579830B2 (en) | TIG welding equipment | |
| JP3368777B2 (en) | Arc welding equipment | |
| JPH0349807Y2 (en) | ||
| JP3391225B2 (en) | Welding equipment | |
| JP2976495B2 (en) | TIG arc welding method | |
| JP3041747B2 (en) | AC TIG welding machine | |
| JP3287164B2 (en) | DC high voltage generator | |
| JPH0813416B2 (en) | Arc welding equipment | |
| JP2561686Y2 (en) | TIG welding machine | |
| JP2768277B2 (en) | Arc welding machine and plasma cutting machine | |
| JP3076946B2 (en) | Arc welding machine and plasma cutting machine | |
| JPH04125064U (en) | arc processing equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080908 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080908 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090908 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090908 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100908 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110908 Year of fee payment: 11 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120908 Year of fee payment: 12 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130908 Year of fee payment: 13 |
|
| EXPY | Cancellation because of completion of term |