JPH0224189B2 - - Google Patents
Info
- Publication number
- JPH0224189B2 JPH0224189B2 JP19717884A JP19717884A JPH0224189B2 JP H0224189 B2 JPH0224189 B2 JP H0224189B2 JP 19717884 A JP19717884 A JP 19717884A JP 19717884 A JP19717884 A JP 19717884A JP H0224189 B2 JPH0224189 B2 JP H0224189B2
- Authority
- JP
- Japan
- Prior art keywords
- conduit tube
- torch body
- torch
- welding
- center
- 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 15
- 239000002184 metal Substances 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims description 3
- HSFWRNGVRCDJHI-UHFFFAOYSA-N Acetylene Chemical compound C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
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
- B23K9/24—Features related to electrodes
- B23K9/28—Supporting devices for electrodes
- B23K9/29—Supporting devices adapted for making use of shielding means
- B23K9/291—Supporting devices adapted for making use of shielding means the shielding means being a gas
-
- 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
- B23K9/12—Automatic feeding or moving of electrodes or work for spot or seam welding or cutting
- B23K9/122—Devices for guiding electrodes, e.g. guide tubes
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は溶接用トーチに関するものである。[Detailed description of the invention] Industrial applications The present invention relates to a welding torch.
従来例の構成とその問題点
第１図に従来の溶接用トーチの一例を示す。１
は管状のトーチ本体で、溶接作業性ならびに溶接
ワイヤに適度の曲率を与え、チツプ２での通電を
良好にする目的で、通常、曲線部を有している。
３は可撓性を有するコンジツトチユーブで、溶接
用ワイヤの通路となり、プラスチツクチユーブを
用いたり、金属線をらせん状に巻いて可撓性をも
たせたチユーブを用いたりしている。４はノズ
ル、５はコネクタである。Configuration of conventional example and its problems Figure 1 shows an example of a conventional welding torch. 1
is a tubular torch body, which usually has a curved section for the purpose of improving welding workability, giving the welding wire an appropriate curvature, and improving current conduction at the tip 2.
Reference numeral 3 designates a flexible conduit tube, which serves as a passage for the welding wire, and is made of a plastic tube or a flexible tube made by winding a metal wire in a spiral shape. 4 is a nozzle, and 5 is a connector.
通常、第２図に示すようにトーチ本体１の内径
は、コンジツトチユーブ３の外径より大きく設計
され、両者の間に空間６を設け、その空間６を溶
接用ガスが流れるように設計されている。そのた
め、コンジツトチユーブ３は、トーチ本体１の中
で振動しやすい状態にあり、コンジツトチユーブ
３の中を溶接ワイヤが送給されると、その影響を
受けて、複雑な振動を起こし、これがアーク不安
定を引起こす大きな要因となつていた。 Usually, as shown in Fig. 2, the inner diameter of the torch body 1 is designed to be larger than the outer diameter of the conduit tube 3, and a space 6 is provided between the two, and the welding gas is designed to flow through the space 6. ing. Therefore, the conduit tube 3 is in a state where it easily vibrates inside the torch body 1, and when the welding wire is fed through the conduit tube 3, it is affected by the welding wire and causes complex vibrations. This was a major factor causing arc instability.
上記問題を解決するためには、コンジツトチユ
ーブ３が振動しないように、トーチ本体１により
拘束する方法も考えられるが、溶接用ガス流路の
構造が複雑となり、コストも高くなる。 In order to solve the above problem, a method of restraining the conduit tube 3 by the torch body 1 so as not to vibrate may be considered, but this would complicate the structure of the welding gas flow path and increase costs.
発明の目的
本発明の目的は、アークの安定性の良い溶接用
トーチを安価に提供することにある。OBJECT OF THE INVENTION An object of the present invention is to provide a welding torch with good arc stability at a low cost.
発明の構成
この目的を達成するために本発明は、コンジツ
トチユーブは金属線をらせん状に巻いて形成し、
かつトーチ本体の曲線部に挿入される部分の中央
部付近を疎巻とし、他の部分を密着巻としたもの
であり、コンジツトチユーブに剛性の弱い部分
（疎巻部）と剛性の強い部分（密着巻部）とが形
成される。Structure of the Invention To achieve this object, the present invention provides that a conduit tube is formed by spirally winding a metal wire,
In addition, the part inserted into the curved part of the torch body is loosely wound near the center, and the other parts are tightly wound, and the conduit tube has a part with weak rigidity (loosely wound part) and a part with strong rigidity. (closely wound part) is formed.
周知のとおり、金属線をらせん状に巻いた時
（コイルを作つた時）、密着巻の方が初張力が大き
く、その結果、剛性が強く、疎巻にすると初張力
が小さくなり、剛性が弱くなる。 As is well known, when metal wire is spirally wound (to make a coil), tightly wound wires have a higher initial tension and, as a result, higher rigidity, whereas loosely wound wires have a lower initial tension and lower rigidity. become weak.
前記のコンジツトチユーブを、トーチ本体内に
挿入すると、コンジツトチユーブは、剛性の弱い
部分（疎に巻いた部分）で優先的に（局部的に）
屈曲を起こすようになる。 When the conduit tube is inserted into the torch body, the conduit tube will preferentially (locally) be placed in the less rigid parts (loosely wound parts).
It begins to bend.
他方、溶接用ワイヤの送給抵抗は、トーチ本体
の曲線部分において最も大きく、この部分に位置
するコンジツトチユーブが振動源となつて振動が
コンジツトチユーブ全体に波及するものと考えら
れるが、この振動源の部分に、前記で述べた局部
的に屈曲するコンジツトチユーブを用いると、振
動が局部的な振動に変わり、コンジツトチユーブ
全体に波及しにくくなり、よつてアークの安定性
が向上する。 On the other hand, the feeding resistance of the welding wire is greatest in the curved part of the torch body, and it is thought that the conduit tube located in this part becomes a source of vibration, and the vibration spreads throughout the conduit tube. If the locally bent conduit tube mentioned above is used as the vibration source, the vibration will change to a localized vibration and will be less likely to spread throughout the conduit tube, thus improving the stability of the arc. .
実施例の説明 第３図、第４図に本発明の一実施例を示す。Description of examples An embodiment of the present invention is shown in FIGS. 3 and 4. FIG.
第３図はコンジツトチユーブ１０を示す図で、
金属線をトーチ本体曲線部に挿入される部分の中
央部付近を疎巻、他の部分を密着巻とし疎巻該当
箇所の剛性を他の部分より弱くしたものの図であ
り、第４図は、前記第３図で示したコンジツトチ
ユーブをトーチ本体に挿入した時のトーチ本体部
分の断面の様子を示したものである。 FIG. 3 is a diagram showing the conduit tube 10,
This is a diagram in which the metal wire is loosely wound near the center of the part where it is inserted into the curved part of the torch body, and tightly wound in other parts, so that the rigidity of the loosely wound part is weaker than that of the other parts. This is a cross-sectional view of the torch main body when the conduit tube shown in FIG. 3 is inserted into the torch main body.
第４図において、１１はトーチ本体で、ガス入
口金具１２、ガス出口穴１３、及びガス逆流防止
金具１４が設けられ、トーチ本体１１の内径は、
コンジツトチユーブ１０の外径より大きく作られ
ており、両者の間の空間を溶接用ガスが流れるよ
うになつている。コンジツトチユーブ１０は、ト
ーチ本体１１の先端部及びガス逆流防止金具１４
によりトーチ本体１の軸心部に支持されており、
その中心部を溶接用ワイヤが送られる。コンジツ
トチユーブ１０は、トーチ本体１１の曲線部の中
央部付近の疎に巻かれた部分の剛性が弱く、その
部分で局部的に屈曲を起こしている。１５はチツ
プ、１６はノズル、１７はコネクタである。 In FIG. 4, reference numeral 11 denotes a torch body, which is provided with a gas inlet fitting 12, a gas outlet hole 13, and a gas backflow prevention fitting 14. The inner diameter of the torch body 11 is as follows.
The outer diameter of the conduit tube 10 is larger than that of the conduit tube 10, so that welding gas flows through the space between the two. The conduit tube 10 is connected to the tip of the torch body 11 and the gas backflow prevention fitting 14.
is supported at the axial center of the torch body 1,
A welding wire is fed through the center. The conduit tube 10 has low rigidity at a loosely wound portion near the center of the curved portion of the torch body 11, and is locally bent at that portion. 15 is a chip, 16 is a nozzle, and 17 is a connector.
発明の効果
以上のように本発明によれば、簡単にして安価
なトーチ構造により、大幅にアークの安定性を向
上させることができる。Effects of the Invention As described above, according to the present invention, arc stability can be significantly improved with a simple and inexpensive torch structure.
第１図は従来の溶接用トーチの一例を示す断面
図、第２図は第１図のＡ−A′断面図、第３図ａ，
ｂは本発明による溶接用トーチのコンジツトチユ
ーブの一例を示す断面図及び側面図、第４図は本
発明による溶接用トーチの一実施例を示す断面図
である。
１０……コンジツトチユーブ、１１……トーチ
本体。
Fig. 1 is a sectional view showing an example of a conventional welding torch, Fig. 2 is a sectional view taken along line A-A' in Fig. 1, Fig. 3 a,
4b is a cross-sectional view and a side view showing an example of a conduit tube of a welding torch according to the present invention, and FIG. 4 is a cross-sectional view showing an example of the welding torch according to the present invention. 10... Conduit tube, 11... Torch body.
Claims (1)
ーチ本体内部を貫通し溶接用ワイヤの通路となる
可撓性コンジツトチユーブとを有し、前記可撓性
コンジツトチユーブは金属線をらせん状に巻いて
形成し、かつ前記トーチ本体の曲線部に挿入され
る部分の中央部付近を疎巻とし、他の部分を密着
巻とした溶接用トーチ。1. It has a tubular torch body having a curved part, and a flexible conduit tube that passes through the inside of this torch body and serves as a passage for a welding wire, and the flexible conduit tube has a metal wire spirally formed in the torch body. A welding torch that is formed by winding, and has a loosely wound portion near the center of the portion inserted into the curved portion of the torch body, and a tightly wound portion in the other portions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59197178A JPS6174784A (en) | 1984-09-20 | 1984-09-20 | welding torch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59197178A JPS6174784A (en) | 1984-09-20 | 1984-09-20 | welding torch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6174784A JPS6174784A (en) | 1986-04-17 |
| JPH0224189B2 true JPH0224189B2 (en) | 1990-05-28 |
Family
ID=16370097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59197178A Granted JPS6174784A (en) | 1984-09-20 | 1984-09-20 | welding torch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6174784A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019198356A1 (en) * | 2018-04-09 | 2019-10-17 | パナソニックＩｐマネジメント株式会社 | Welding torch |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2570553Y2 (en) * | 1989-04-17 | 1998-05-06 | 松下電器産業株式会社 | Arc welding torch |
| JP2005172058A (en) * | 2003-12-09 | 2005-06-30 | Toshiba Teli Corp | Flexible spring insert |
| JP5248753B2 (en) * | 2006-06-14 | 2013-07-31 | 株式会社ダイヘン | Welding torch |
| US9061366B2 (en) | 2007-06-22 | 2015-06-23 | Illinois Tool Works Inc. | Welding system and method having controlled liner contour and welding wire curvature |
| US9255745B2 (en) * | 2009-01-05 | 2016-02-09 | Hamilton Sundstrand Corporation | Heat exchanger |
-
1984
- 1984-09-20 JP JP59197178A patent/JPS6174784A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019198356A1 (en) * | 2018-04-09 | 2019-10-17 | パナソニックＩｐマネジメント株式会社 | Welding torch |
| JPWO2019198356A1 (en) * | 2018-04-09 | 2021-04-08 | パナソニックＩｐマネジメント株式会社 | Welding torch |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6174784A (en) | 1986-04-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |