JPS633748Y2 - - Google Patents
Info
- Publication number
- JPS633748Y2 JPS633748Y2 JP1980089476U JP8947680U JPS633748Y2 JP S633748 Y2 JPS633748 Y2 JP S633748Y2 JP 1980089476 U JP1980089476 U JP 1980089476U JP 8947680 U JP8947680 U JP 8947680U JP S633748 Y2 JPS633748 Y2 JP S633748Y2
- Authority
- JP
- Japan
- Prior art keywords
- welding
- inner cylinder
- arc welding
- fume
- suction port
- 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
Links
- 238000003466 welding Methods 0.000 claims description 26
- 239000003496 welding fume Substances 0.000 claims description 14
- 239000007789 gas Substances 0.000 claims description 12
- 238000007664 blowing Methods 0.000 claims description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 239000003517 fume Substances 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- -1 that is Substances 0.000 description 1
Landscapes
- Arc Welding In General (AREA)
Description
【考案の詳細な説明】
本考案は、ガスシールドアーク溶接に使用され
る溶接装置のアーク溶接用ノズルに関し、詳しく
は、溶接時に発生する溶接ヒユームの拡散を防止
することができるアーク溶接用ノズルに関する。[Detailed description of the invention] The present invention relates to an arc welding nozzle for a welding device used in gas-shielded arc welding, and more particularly to an arc welding nozzle that can prevent the diffusion of welding fume generated during welding. .
従来、ガスシールドアーク溶接に使用される溶
接装置では、たとえば、第１図に示すようなアー
ク溶接用ノズルが用いられていた。このアーク溶
接用ノズルは、コンタクトチツプに支持されて図
示しない電源装置から通電される溶接用ワイヤな
どの消耗電極２の周囲に、同心状に筒体３を設
け、コンタクトチツプ１と筒体３とでシールドガ
スの吹出口４を形成したものである。 Conventionally, welding equipment used for gas shielded arc welding has used an arc welding nozzle as shown in FIG. 1, for example. In this arc welding nozzle, a cylindrical body 3 is provided concentrically around a consumable electrode 2, such as a welding wire, which is supported by a contact tip and energized from a power supply (not shown). A shielding gas outlet 4 is formed in this embodiment.
このアーク溶接用ノズルによると、被溶接物５
と消耗電極２との間でアーク溶接を行なつている
際に、吹出口４からシールドガス６を吹出して、
周囲の空気を遮断する。このとき、アークによつ
て、溶着金属７および、被溶接物５の赤熱部分か
ら煙状のガス、すなわち溶接ヒユームが発生し、
これが室内または大気中に拡散し、作業員に対す
る悪影響、あるいは大気汚染を招く虞れがあり、
これを集煙するには大流量の集煙機を要するなど
の欠点があつた。 According to this arc welding nozzle, the workpiece 5
During arc welding between the electrode 2 and the consumable electrode 2, the shielding gas 6 is blown out from the outlet 4,
Block out the surrounding air. At this time, smoky gas, that is, welding fume, is generated from the red-hot parts of the weld metal 7 and the workpiece 5 due to the arc.
This may spread indoors or into the atmosphere, causing negative effects on workers or causing air pollution.
There were drawbacks such as the need for a smoke collector with a large flow rate to collect the smoke.
一方、このような溶接ヒユームを防止するた
め、筒体３の外側に溶接ヒユームの吸引孔を設け
て溶接ヒユームを吸引すると共に、さらに外側に
空気吐出孔を設けるようにした先行技術がある
（実開昭49−130119号公報および実開昭48−86118
号公報）。しかし、このような構造では、筒体構
造が三重構造となり、ノズル部分が大型化すると
共に、最内側のガス噴出によつて溶接ヒユームが
外側に流れ、結局、充分な溶接ヒユームの捕捉は
できなかつた。 On the other hand, in order to prevent such welding fumes, there is a prior art in which a welding fume suction hole is provided on the outside of the cylinder body 3 to suck the welding fume, and an air discharge hole is further provided on the outside. Publication No. 49-130119 and Utility Model No. 86118
Publication No.). However, in such a structure, the cylindrical structure becomes a triple structure, the nozzle part becomes large, and the welding fume flows outward due to the gas ejected from the innermost part, and in the end, it is not possible to capture enough welding fume. Ta.
本考案は、上記事情に鑑みてなされたもので、
溶接時に発生する溶接ヒユームの拡散を防止する
ことができるアーク溶接用ノズルを提供すること
を目的とする。 This invention was made in view of the above circumstances,
An object of the present invention is to provide an arc welding nozzle that can prevent diffusion of weld fume generated during welding.
以下、第１図と同一部分には同符号を付して、
その説明を省略して示す、図示の実施例を参照し
ながら本考案を詳細に説明する。 Hereinafter, the same parts as in Fig. 1 are given the same reference numerals.
The invention will be described in detail with reference to illustrated embodiments, the description of which will be omitted.
第２図において、アーク溶接用ノズル８は、消
耗電極２の周囲に、互いに同心状に内筒９および
外筒１０を設け、内筒９と外筒１０とによつてシ
ールドガスを吹き出す吹出口１１を形成し、かつ
消耗電極２を支持するコンタクトチツプ１と内筒
９とによつて溶接ヒユームを吸い込む吸込口１２
を形成している。 In FIG. 2, an arc welding nozzle 8 has an inner tube 9 and an outer tube 10 provided concentrically around the consumable electrode 2, and an outlet for blowing out shielding gas through the inner tube 9 and the outer tube 10. 11 and a suction port 12 for sucking welding fume by the contact tip 1 supporting the consumable electrode 2 and the inner cylinder 9;
is formed.
上記内筒９は外筒１０よりわずかに突出させて
形成し、吸込口１２が吹出口１１より溶接部によ
り接近するように形成してある。 The inner cylinder 9 is formed to slightly protrude from the outer cylinder 10, and the suction port 12 is formed closer to the welding part than the air outlet 11.
本考案のアーク溶接用ノズルの作用は次のとお
りである。 The action of the arc welding nozzle of the present invention is as follows.
消耗電極２と被溶接物５との間で、アーク溶接
が行なわれている際に、吹出口１１から吹出され
たシールドガスは、被溶接物５に吹付けられて溶
接個所と外部空気とのシールドを行なうととも
に、図示矢印のように吸込口１２から吸込まれ
る。そして、溶接時に被溶接物５から生じる溶接
ヒユームは、シールドガスとともに吸込口１２か
ら集煙される。このとき、シールドガスによつて
外部空気から遮断された内側部分では、吸込口１
２から吸込まれるシールドガスの流れによつて負
圧が生じているので、溶接ヒユームは周囲に拡散
せずに集煙される。 When arc welding is being performed between the consumable electrode 2 and the workpiece 5, the shielding gas blown out from the outlet 11 is blown onto the workpiece 5 and causes a connection between the welding location and the outside air. While shielding, it is sucked in from the suction port 12 as shown by the arrow in the figure. Welding fume generated from the workpiece 5 during welding is collected from the suction port 12 together with the shielding gas. At this time, in the inner part cut off from the outside air by the shield gas, the suction port 1
Since a negative pressure is generated by the flow of shielding gas sucked in from 2, welding fume is collected without spreading to the surroundings.
吸入口１２が吹出口１１よりも溶接部に近いの
で発生した溶接ヒユームを拡散前に捕捉する。 Since the suction port 12 is closer to the welding part than the air outlet 11, the generated welding fume is captured before it spreads.
以上述べたように、本考案によるアーク溶接用
ノズルによれば、電極の周囲に、互いに同心状に
内筒および外筒を設け、上記内筒と外筒とによつ
てシールドガスを吹き出す吹出口を形成し、かつ
電極と内筒とによつて溶接ヒユームを吸い込む吸
込口を形成し、上記内筒を外筒よりも突出させた
ので、溶接ヒユームが周囲に拡散する前に吸込口
から効果的と吸引することができる。内筒と外筒
の二重構造で、外筒は内筒よりも位置がずれてい
るので、ノズル部分の径を極力細くした状態で溶
接ヒユームの拡散を防止できる。 As described above, according to the arc welding nozzle according to the present invention, an inner tube and an outer tube are provided concentrically around the electrode, and the outlet port blows out shielding gas through the inner tube and the outer tube. The electrode and the inner cylinder form a suction port for sucking welding fume, and the inner cylinder is made to protrude beyond the outer cylinder, so that the welding fume can be effectively absorbed from the suction port before it spreads to the surrounding area. and can be inhaled. Since it has a double structure of an inner cylinder and an outer cylinder, and the outer cylinder is offset from the inner cylinder, it is possible to prevent weld fume from spreading while keeping the diameter of the nozzle part as thin as possible.
第１図は従来のアーク溶接用ノズルを示す概念
断面図、第２図は本考案のアーク溶接用ノズルの
一実施例を示す概念断面図である。
１……コンタクトチツプ、２……消耗電極、８
……アーク溶接用ノズル、９……内筒、１０……
外筒、１１……吹出口、１２……吸込口。
FIG. 1 is a conceptual sectional view showing a conventional arc welding nozzle, and FIG. 2 is a conceptual sectional view showing an embodiment of the arc welding nozzle of the present invention. 1...Contact chip, 2...Consumable electrode, 8
... Arc welding nozzle, 9 ... Inner cylinder, 10 ...
Outer cylinder, 11...Blowout port, 12...Suction port.
Claims (1)
を設け、上記内筒と外筒とによつてシールドガス
を吹き出す吹出口を形成し、かつ電極と内筒とに
よつて溶接ヒユームを吸い込む吸込口を形成し、
上記内筒を外筒よりも突出させたことを特徴とす
るアーク溶接用ノズル。 An inner cylinder and an outer cylinder are provided concentrically around the electrode, and the inner cylinder and the outer cylinder form an outlet for blowing out the shielding gas, and the electrode and the inner cylinder suck in welding fume. forming a suction port,
An arc welding nozzle characterized in that the inner cylinder is made to protrude more than the outer cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980089476U JPS633748Y2 (en) | 1980-06-26 | 1980-06-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980089476U JPS633748Y2 (en) | 1980-06-26 | 1980-06-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5711681U JPS5711681U (en) | 1982-01-21 |
| JPS633748Y2 true JPS633748Y2 (en) | 1988-01-29 |
Family
ID=29451505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1980089476U Expired JPS633748Y2 (en) | 1980-06-26 | 1980-06-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS633748Y2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6558920B2 (en) * | 2015-01-26 | 2019-08-14 | 株式会社神戸製鋼所 | Welding apparatus and welding method |
| JP6536339B2 (en) * | 2015-10-07 | 2019-07-03 | 株式会社デンソー | Welding torch, welding apparatus, and method of manufacturing welding product |
| JP6661415B2 (en) * | 2016-03-04 | 2020-03-11 | 株式会社神戸製鋼所 | Welding torch |
| JP6683505B2 (en) | 2016-03-08 | 2020-04-22 | 株式会社神戸製鋼所 | Welding method using special torch |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4886118U (en) * | 1972-01-21 | 1973-10-18 | ||
| JPS49130119U (en) * | 1973-03-12 | 1974-11-08 |
-
1980
- 1980-06-26 JP JP1980089476U patent/JPS633748Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5711681U (en) | 1982-01-21 |
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