JPS58151963A - Automatic all-position arc welding machine - Google Patents
Automatic all-position arc welding machineInfo
- Publication number
- JPS58151963A JPS58151963A JP3444882A JP3444882A JPS58151963A JP S58151963 A JPS58151963 A JP S58151963A JP 3444882 A JP3444882 A JP 3444882A JP 3444882 A JP3444882 A JP 3444882A JP S58151963 A JPS58151963 A JP S58151963A
- Authority
- JP
- Japan
- Prior art keywords
- surface temperature
- welding
- main power
- detection signal
- signal
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/06—Arrangements or circuits for starting the arc, e.g. by generating ignition voltage, or for stabilising the arc
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
- Arc Welding Control (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は全姿勢自動アーク溶接装置、特に銅などのよう
に熱伝導の良い管状金属の突合せ部に沿って溶接トーチ
を該管状金属の近傍を移動させ、上記突合せ部を溶接す
る全姿勢自動アーク溶接装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention is an all-position automatic arc welding device, in particular, a welding torch is moved in the vicinity of a tubular metal having good heat conductivity, such as copper, along the abutting part of the tubular metal, and The present invention relates to an all-position automatic arc welding device for welding.
一般に銅に代表される熱伝導率の高い金属を溶接する場
合、放熱による冷却効果が大きいため、アーク熱による
金属の溶融状態は非常に不安定となシ、良好な溶接結果
を得るには予熱などによって溶融部分を熱的に安定に保
つ必要がある。In general, when welding metals with high thermal conductivity, such as copper, the cooling effect due to heat radiation is large, so the molten state of the metal due to arc heat is extremely unstable. It is necessary to keep the molten part thermally stable.
また、管状の溶接対象物を全姿勢溶接するに際しては、
溶接線の開始点と終了点が一致していることから該終了
点に近づくに従い開始部分での入熱による温度上昇が加
わるので、開先付近での温度分布は非常に複雑となって
、溶接条件の選定は極めて困難なものである。In addition, when welding a tubular workpiece in all positions,
Since the start and end points of the weld line coincide, as the end point approaches, the temperature increases due to heat input at the start point, and the temperature distribution near the groove becomes very complex, making it difficult to weld. Selection of conditions is extremely difficult.
本発明は前述した従来の課題に鑑み為されたものであシ
、その目的は全姿勢溶接が非常に困難な材質の溶接対象
物即ち熱伝導率の高い金属に対しても安定な溶接結果が
得られる全姿勢自動アーク溶接装置を提供することにあ
る。The present invention was made in view of the above-mentioned conventional problems, and its purpose is to provide stable welding results even for welding objects made of materials that are extremely difficult to weld in all positions, that is, metals with high thermal conductivity. The object of the present invention is to provide an all-position automatic arc welding device that can be obtained.
上記目的を達成するために、本発明は、主電源装置よシ
溶接電流の供給を受けながら溶接線に沿って溶接対象物
の近傍を移動する溶接トーチと、この溶接トーチと共に
溶接対象物の近傍を移動しながら該溶接対象物の表面温
度を検出する温度検出器と、この温度検出器の検出信号
および上記溶接対象物の表面温度基準設定器からの基準
信号とに基づいて上記主電源装置を制御し該溶接対象物
の表面温度を一定に保つ制御回路と、からなることを特
徴とする。In order to achieve the above object, the present invention provides a welding torch that moves near an object to be welded along a welding line while being supplied with welding current from a main power supply; a temperature detector that detects the surface temperature of the welding object while moving the welding object; and a temperature detector that detects the surface temperature of the welding object while the and a control circuit that controls and keeps the surface temperature of the welding object constant.
以下、図面に基づいて本発明の好適な実施例を説明する
。図において、溶接対象物である管状の母材１０ａ−１
０ｂはその端面同志を突合せて設置する。溶接トーチ１
２＃ｉ不図示の支持部材に支持され、母材１０，１−１
０ｂの突合せ溶接線１４に沿って該母材の近傍を溶接の
進行に伴な−移動する。温度検出器１６は溶接トーチ１
２と一体となって母材の近傍を移動しなから該母材の表
面温度を検出する。この検出器１６は母材を倣い表から
移動するものでも、近接配置されて移動するものでもよ
い。この温度検出器１６の検出信号は増幅器１８を介し
て差動増幅器２０の一方の入力端子２０ｂに供給され、
他方の入力端子２０Ｍに供給された上記母材の表面温度
基準設定器２２からの基準信号と比較される。上記差動
増幅器２０の出力信５号は主電源装置２４に供給される
。この主電源装置２４は上記母材と溶接トーチとの間に
電圧を印加して溶接電流を供給するように構成されてい
る。Hereinafter, preferred embodiments of the present invention will be described based on the drawings. In the figure, a tubular base material 10a-1 that is the object to be welded
0b is installed with its end faces butted against each other. welding torch 1
2#i Supported by a support member (not shown), the base material 10, 1-1
It moves along the butt weld line 14 of 0b in the vicinity of the base metal as welding progresses. Temperature detector 16 is the welding torch 1
2 and moves near the base material to detect the surface temperature of the base material. This detector 16 may be one that moves from the scanning surface while scanning the base material, or one that moves while being placed nearby. The detection signal of this temperature detector 16 is supplied to one input terminal 20b of the differential amplifier 20 via the amplifier 18,
It is compared with a reference signal from the base material surface temperature reference setter 22 supplied to the other input terminal 20M. Output signal No. 5 of the differential amplifier 20 is supplied to the main power supply device 24. This main power supply device 24 is configured to apply a voltage between the base material and the welding torch to supply welding current.
本発明の実施例は上記の構成からなるもので、以下、そ
の作用を説明する。差動増幅器２０＃ｉ母材の表面温度
基準設定器２２からの基準信号と温度検出器１６で検出
し増幅器１８で増幅した母材の表面温度に比例した検出
信号とを比較し、その差信号によシ主電源装置２４を制
御する。即ち、上記基準信号に対し母材の表面温度に基
づく検出信号が低い場合は溶接電流を増加させるように
、また、反対に高論場合は減少させるように、差動増幅
器２０からの出力信号によって主電源装置２４を制御す
る。この制御によって母材の表面温度を一定に保ち溶接
部の溶融状態を安定化させてるものである。The embodiment of the present invention has the above configuration, and its operation will be explained below. Differential amplifier 20#i Compares the reference signal from the base metal surface temperature reference setter 22 with the detection signal proportional to the base metal surface temperature detected by the temperature detector 16 and amplified by the amplifier 18, and calculates the difference signal. The main power supply device 24 is controlled accordingly. That is, the output signal from the differential amplifier 20 is used to increase the welding current when the detection signal based on the surface temperature of the base metal is low relative to the reference signal, and to decrease it when the detection signal is high. Controls the main power supply device 24. This control keeps the surface temperature of the base metal constant and stabilizes the molten state of the weld.
なお、図示実施例は母材の表面温度を一定に保つために
溶接電流を増減させているが、別の方法として溶接速度
を増減しても溶接部の溶融状態を安定化させる同一の効
果は得られるのは当然である。Note that in the illustrated embodiment, the welding current is increased or decreased in order to keep the surface temperature of the base metal constant, but the same effect of stabilizing the molten state of the weld zone can be obtained by increasing or decreasing the welding speed as another method. Of course you can get it.
また、本発明全姿勢自動アーク溶接装置を適用すべき溶
接方法は特に限定されるものではなく、ＴＩＧ、ＭＩＧ
のいずれにも適用可能である。Furthermore, the welding method to which the all-position automatic arc welding device of the present invention is applied is not particularly limited, and includes TIG, MIG,
It is applicable to both.
以上説明しえように、本発明によれば、母材の表面温度
を常に検知しながらその温度を一定に保持するものであ
るから、金属の溶融状態が非常に安定となって溶込み不
足や溶落ちのない均一な溶接結果が容易に得られる０％
に、銅などの熱伝導率の高い金属を母材とする場合は該
母材の入熱量を厳密にコントロールする必要があるが、
本発明を適用することによって溶接部の品質を一段と向
上させることができるという極めて有用な効果が得られ
るものである。As explained above, according to the present invention, the surface temperature of the base metal is constantly detected and maintained at a constant temperature, so the molten state of the metal becomes extremely stable and there is no problem of insufficient penetration. 0% to easily obtain uniform welding results without burn-through
In addition, when using a metal with high thermal conductivity such as copper as a base material, it is necessary to strictly control the amount of heat input to the base material.
By applying the present invention, an extremely useful effect can be obtained in that the quality of the welded part can be further improved.
図面は本発明全姿勢自動アーク溶接装置の動作原理を示
すブロック図である。
１０ａ・１０ｂは母材、１２Ｈ溶接トーチ、１４は溶接
線、１６は温度検出器、１８Ｆｉ増幅器、２０は差動増
幅器、２２は表面温度基準設定器、２４は主電源装置で
ある。
代理人 弁理士 葛 野 信 −（＃１か１名
）The drawing is a block diagram showing the operating principle of the all-position automatic arc welding apparatus of the present invention. 10a and 10b are base metals, 12H welding torch, 14 welding line, 16 temperature detector, 18Fi amplifier, 20 differential amplifier, 22 surface temperature reference setting device, and 24 main power supply device. Agent Patent attorney Shin Kuzuno - (#1 or 1 person)
Claims (1)
線に沿って溶接対象物の近傍を移動する溶接トーチと、
この溶接トーチと共に溶接対象物の近傍を移動しながら
該溶接対象物の表面温度を検出する温度検出器と、この
温度検出器の検出信号および上記溶接対象物の表面温度
基準設定器からの基準信号とに基づいて上記主電源装置
を制御し該溶接対象物の表面温度を一定に保つ制御回路
と、からなることを特徴とする全姿勢自動アーク溶接装
置。(1) a welding torch that moves near the welding object along the welding line while being supplied with welding current from the main power supply;
A temperature detector that detects the surface temperature of the welding object while moving in the vicinity of the welding object with the welding torch, and a detection signal from this temperature detector and a reference signal from the surface temperature reference setting device of the welding object. and a control circuit that controls the main power supply device based on the above to maintain a constant surface temperature of the welding object.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3444882A JPS58151963A (en) | 1982-03-04 | 1982-03-04 | Automatic all-position arc welding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3444882A JPS58151963A (en) | 1982-03-04 | 1982-03-04 | Automatic all-position arc welding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58151963A true JPS58151963A (en) | 1983-09-09 |
Family
ID=12414527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3444882A Pending JPS58151963A (en) | 1982-03-04 | 1982-03-04 | Automatic all-position arc welding machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58151963A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0335878A (en) * | 1989-06-30 | 1991-02-15 | Ishikawajima Harima Heavy Ind Co Ltd | Welding control method |
| WO2014182523A1 (en) * | 2013-05-10 | 2014-11-13 | Illinois Tool Works Inc. | Welding system for determining a quality of a welding operation |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5285041A (en) * | 1976-01-07 | 1977-07-15 | Hitachi Ltd | Automatic welding equipment |
-
1982
- 1982-03-04 JP JP3444882A patent/JPS58151963A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5285041A (en) * | 1976-01-07 | 1977-07-15 | Hitachi Ltd | Automatic welding equipment |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0335878A (en) * | 1989-06-30 | 1991-02-15 | Ishikawajima Harima Heavy Ind Co Ltd | Welding control method |
| WO2014182523A1 (en) * | 2013-05-10 | 2014-11-13 | Illinois Tool Works Inc. | Welding system for determining a quality of a welding operation |
| CN105163891A (en) * | 2013-05-10 | 2015-12-16 | 伊利诺斯工具制品有限公司 | Welding system for determining quality of welding operation |
| CN105163891B (en) * | 2013-05-10 | 2018-12-07 | 伊利诺斯工具制品有限公司 | For determining the welding system of the quality of welding operation |
| US10213862B2 (en) | 2013-05-10 | 2019-02-26 | Illinois Tool Works Inc. | Welding system for determining a quality of a welding operation |
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