JPH03291168A - Arc control method for tig welding - Google Patents
Arc control method for tig weldingInfo
- Publication number
- JPH03291168A JPH03291168A JP9365190A JP9365190A JPH03291168A JP H03291168 A JPH03291168 A JP H03291168A JP 9365190 A JP9365190 A JP 9365190A JP 9365190 A JP9365190 A JP 9365190A JP H03291168 A JPH03291168 A JP H03291168A
- Authority
- JP
- Japan
- Prior art keywords
- arc
- magnets
- welding
- state
- control
- 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.)
- Granted
Links
- 238000003466 welding Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims description 11
- 238000001514 detection method Methods 0.000 claims abstract 3
- 230000003287 optical effect Effects 0.000 claims abstract 3
- 239000010953 base metal Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 239000013307 optical fiber Substances 0.000 claims 3
- 238000006243 chemical reaction Methods 0.000 claims 2
- 239000011261 inert gas Substances 0.000 claims 2
- 239000000919 ceramic Substances 0.000 claims 1
- 101150038956 cup-4 gene Proteins 0.000 claims 1
- 230000005347 demagnetization Effects 0.000 abstract 1
- 230000005415 magnetization Effects 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Arc Welding In General (AREA)
- Arc Welding Control (AREA)
Abstract
PURPOSE:To perform welding with high accuracy by magnetizing and demagnetizing couples of magnets based on a predetermined program according to an arc state detected by an optical detection means to control an arc. CONSTITUTION:Plural couples of magnets 6 of the north pole and south pole arranged in point symmetry with respect to the arc center are formed in order to maintain the arc in an ideal state on a magnet fitting coordinate disk 7 and the couples of magnets 6 are electromagnetic coil magnets which can be magnetized and demagnetized and whose strength of polarity and magnetic field can be changed. The polarity and strength of these couples of magnets 6 are based on the predetermined program and the polarity is controlled by changing over SW1 with a control part 13 and magnetization and demagnetization are executed by opening and closing of SW2 - SW7 and a line of magnetic force is controlled by changing the strength of an electric current. Consequently, welding with high accuracy can be performed and arc control is executed only by electric operation.
Description
【発明の詳細な説明】
［産業上の利用分野コ
本発明は、ＴＩＧ溶接に於けるアークの制御方法に係わ
り、更に詳しくは瞬時にしかも正確に精度良くアークの
制御が自動的に行なうことができるＴＩＧ溶接に於ける
アークの制御方法に関する。[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a method of controlling an arc in TIG welding, and more specifically, to a method for automatically controlling an arc instantly, accurately, and with high precision. This invention relates to a method for controlling arc in TIG welding.
［従来の技術］
周知の通り、アルミニウム等の熱伝導率の高い材料の突
合せ、重ね、あるいし土隅肉溶接にはＴＩＧＪＪ接法が
用いられている。そして、近来、生産性の向上や省エネ
ルギーの要求が高まり、上記ＴＩＧＩ′ａ接法な用いて
、高速に溶接が行われる様になった。[Prior Art] As is well known, the TIGJJ welding method is used for butting, overlapping, or fillet welding of materials with high thermal conductivity such as aluminum. In recent years, demands for improved productivity and energy saving have increased, and welding has come to be performed at high speed using the above-mentioned TIGI'a welding method.
しかし、高速でＴＩＧＩ＠接を行う際には溶接母材又は
電極を高速で移動させる必要があり、アークの周辺環境
に変化や慣性によってアークの状態がその時の溶接条件
に合った理想とされる最適状態から外れてしまうという
不具合が生じていた。However, when performing TIGI@ welding at high speed, it is necessary to move the welding base metal or electrode at high speed, and changes in the environment around the arc and inertia make the arc condition ideal for the welding conditions at that time. A problem occurred in which the system deviated from the optimal state.
Claims (4)
もしくは非磁気性の溶接母材１を陰極、電極棒３を陽極
と成し、トーチ２の先端部のセラミックカップ４の内部
イナートガス吐出空間５からアークＡを包む為のイナー
トガスＢを噴出させつつ上記電極棒３と母材１との間に
高周波電流を給電することによって発生させた直流アー
クＡによって非磁気性の溶接母材１どうしの突合せ、重
ね、あるいは隅肉を高速でＴＩＧ溶接し、しかも上記非
磁気性の溶接母材１や電極棒３の移動条件や動作、その
他の溶接条件の変更に応じてアークＡの状態がその時の
溶接条件に合った理想とされる最適状態から外れていた
場合、そのアークＡのズレを補正したり、あるいはその
時の溶接条件の変化に応じてそれに適合する様に積極的
にアークＡの状態を制御する為の制御手段として、理想
とされるアークＡの中心に対して、点対称的に配された
Ｎ極とＳ極の一対の磁石６の群を用いて行うＴＩＧ溶接
に於けるアークの自動制御方法に於て： 上記一対の磁石６の群は励磁、消磁可能な電磁コイル磁
石の群であって、アークＡの周りにアークＡから生ずる
光を検出する為に平面的に展開した座標ごとに配設され
た光学的検出手段８によって検出されたアークＡの状態
に応じてあらかじめ定められたプログラムにより、上記
一対の磁石６を励磁、消磁させることによってアークＡ
の状態を可変制御できる様にしたことを特徴とするＴＩ
Ｇ溶接に於けるアークの制御方法。(1) Non-magnetic welding base material 1 is an anode, electrode rod 3 is a cathode,
Alternatively, the non-magnetic welding base material 1 is used as a cathode and the electrode rod 3 is used as an anode, and the above is performed while ejecting inert gas B to surround the arc A from the internal inert gas discharge space 5 of the ceramic cup 4 at the tip of the torch 2. A direct current arc A is generated by supplying a high frequency current between the electrode rod 3 and the base metal 1 to TIG weld the butt, overlap, or fillet of non-magnetic weld base metals 1 at high speed. Due to changes in the movement conditions and operations of the non-magnetic welding base metal 1 and electrode rod 3, and other welding conditions, the state of arc A deviated from the ideal and optimal state that matched the welding conditions at that time. In this case, the ideal arc A can be used as a control means to correct the deviation of the arc A, or to actively control the state of the arc A in accordance with changes in the welding conditions at that time. In an automatic arc control method in TIG welding using a group of a pair of magnets 6 with N and S poles arranged point-symmetrically with respect to the center: The group of the pair of magnets 6 is as follows: A group of electromagnetic coil magnets that can be energized and demagnetized, and detected by optical detection means 8 arranged around the arc A at each coordinate spread out in a plane in order to detect the light generated from the arc A. By energizing and demagnetizing the pair of magnets 6 according to a predetermined program according to the state of the arc A, the arc A is
A TI characterized by being able to variably control the state of
Arc control method in G welding.
アークＡの状態を検出し、理想とされる状態から最も離
れている所の座標を求め、その座標と理想とされるアー
クＡの中心とを結ぶ仮想線分１５に対して直交し理想と
されるアークＡの中心を通る仮想線分１６上に配されて
いる上記一対の磁石６を励磁して制御することを特徴と
する請求項第１項記載のＴＩＧ溶接に於けるアークの制
御方法。(2) To control the arc A, the state of the arc A is detected by the optical detection means 8, the coordinates of the point farthest from the ideal state are determined, and the coordinates and the center of the ideal arc A are determined. A claim characterized in that the pair of magnets 6 arranged on an imaginary line segment 16 that is orthogonal to an imaginary line segment 15 that connects the imaginary line segment 15 and that passes through the center of an ideal arc A is energized and controlled. A method for controlling an arc in TIG welding according to item 1.
座標盤９と上記光ファイバー取付座標盤９に所定の座標
配置で配設された光ファイバー１０、上記光ファイバー
１０に導入されるアナログ量を電気量に変換する為のフ
ォトセンサ１１、高周波成分及びノイズをカットする為
のフォトカプラ１２、制御部１３、そして制御部１３に
入力し出力させる為の入出力装置１４によって行なわれ
ることを特徴とする請求項第１項、第２項記載のＴＩＧ
溶接に於けるアークの制御方法。(3) The state of the arc A is detected by converting the analog quantity introduced into the optical fiber 10 arranged in a predetermined coordinate arrangement on the optical fiber attachment coordinate board 9 and the optical fiber 10 into an electric quantity. A claim characterized in that the conversion is performed by a photo sensor 11 for conversion, a photo coupler 12 for cutting high frequency components and noise, a control section 13, and an input/output device 14 for inputting to and outputting from the control section 13. TIG described in paragraphs 1 and 2
Arc control method in welding.
に交互に変えられることを特徴とする請求項第１項〜第
３項記載のＴＩＧ溶接に於けるアークの制御方法。(4) The arc control method in TIG welding according to any one of claims 1 to 3, wherein the polarity of the pair of magnets 6 and the strength of the magnetic field are automatically changed alternately.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9365190A JPH0747214B2 (en) | 1990-04-09 | 1990-04-09 | Arc control method in TIG welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9365190A JPH0747214B2 (en) | 1990-04-09 | 1990-04-09 | Arc control method in TIG welding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03291168A true JPH03291168A (en) | 1991-12-20 |
| JPH0747214B2 JPH0747214B2 (en) | 1995-05-24 |
Family
ID=14088283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9365190A Expired - Lifetime JPH0747214B2 (en) | 1990-04-09 | 1990-04-09 | Arc control method in TIG welding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0747214B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114473139A (en) * | 2022-01-28 | 2022-05-13 | 湘潭大学 | Self-adaptive control method and system for curved surface of rotary TIG arc welding line |
-
1990
- 1990-04-09 JP JP9365190A patent/JPH0747214B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114473139A (en) * | 2022-01-28 | 2022-05-13 | 湘潭大学 | Self-adaptive control method and system for curved surface of rotary TIG arc welding line |
| CN114473139B (en) * | 2022-01-28 | 2023-10-20 | 湘潭大学 | Self-adaptive control method and system for rotating TIG arc welding seam curved surface |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0747214B2 (en) | 1995-05-24 |
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