JPH01309787A - Torch nozzle for gas shielded welding - Google Patents
Torch nozzle for gas shielded weldingInfo
- Publication number
- JPH01309787A JPH01309787A JP13832288A JP13832288A JPH01309787A JP H01309787 A JPH01309787 A JP H01309787A JP 13832288 A JP13832288 A JP 13832288A JP 13832288 A JP13832288 A JP 13832288A JP H01309787 A JPH01309787 A JP H01309787A
- Authority
- JP
- Japan
- Prior art keywords
- tip
- nozzle
- torch nozzle
- welding
- balls
- 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 26
- 239000000919 ceramic Substances 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 18
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 229910001182 Mo alloy Inorganic materials 0.000 description 1
- 229910001080 W alloy Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003779 heat-resistant material Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- Arc Welding In General (AREA)
Abstract
Description
【発明の詳細な説明】
（イ）産業上の利用分野
本発明はアーク溶接機に関し、ガスシールド型の消耗電
極式溶接機のトーチノズルに関する。DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to an arc welder, and more particularly to a torch nozzle for a gas-shielded consumable electrode welder.
（ロ）従来の技術
従来一般のガスシールド消耗電極式アーク溶接機のトー
チノズルの断面図を第２図に示す。トーチノズル１のコ
ンジェットチューブ２に接続されるトーチ本体（図示し
ない）からの電導体ヂツプホールダ−３とその尖端に螺
合されるコンタクトチップ４はノズル筒５で被覆される
。該コンタクトチップ４はその中心に溶接用ワイヤを通
すワイヤ案内孔６をおけ、該ワイヤの案内とワイヤへの
給電を行う。そして上記コンタクトチップ４とノズル筒
５の間隙がシールドガスの流出路７とされ、溶接時は該
ガス流出路７からのシールドカス（現在は不活性ガスの
代りに安価な炭酸カスが主として用いられる）により電
極（上記溶接用ワイヤ）とそれからの溶着金属へのアー
クが被覆されるようになる。(b) Prior Art FIG. 2 shows a sectional view of a torch nozzle of a conventional gas-shielded consumable electrode type arc welding machine. A conductor dip holder 3 from a torch body (not shown) connected to a conduit tube 2 of a torch nozzle 1 and a contact tip 4 screwed onto the tip thereof are covered with a nozzle tube 5. The contact tip 4 has a wire guide hole 6 in its center, through which a welding wire passes, and guides the wire and supplies power to the wire. The gap between the contact tip 4 and the nozzle tube 5 is used as a shielding gas outflow path 7, and during welding, shielding scum (currently, inexpensive carbon dioxide scum is mainly used instead of inert gas) is discharged from the gas outflow path 7. ) covers the electrode (the above-mentioned welding wire) and the arc from it to the weld metal.
（ハ）発明が解決しようとする問題点
ガスシールド・アーク溶接は上記の如くシールドガスの
雰囲気中で溶接を行って、大気とアーク及び溶接部を遮
断して大気中の有害元素の溶着金属への悪影響を防止す
るものではあるが、溶接中に溶接用ワイヤ及び溶着金属
のアークにより飛散するスパッタがガス流出路７中に侵
入する。そしてこのスパッタが溜るとコンタクトチップ
４とノズル筒５の電気導通を生じてノズル筒５が溶着母
体に近づくと短絡して溶接不能になる。この状態は上記
ガス流出路７をそれ程大きくする訳には行かないので、
かなり頻繁に発生しその都度ノズル筒５を取り外して掃
除をしなければならない。上向き溶接等では特にこの現
象が甚だしく殆んど作業にならない位の状態である。(c) Problems to be solved by the invention In gas shield arc welding, welding is performed in an atmosphere of shielding gas as described above, which blocks the atmosphere from the arc and the welding area, and prevents harmful elements in the atmosphere from being removed from the deposited metal. However, spatter scattered by the arc of the welding wire and weld metal during welding enters the gas outlet path 7. When this spatter accumulates, electrical continuity occurs between the contact tip 4 and the nozzle tube 5, and when the nozzle tube 5 approaches the welding base, a short circuit occurs and welding becomes impossible. In this state, it is not possible to make the gas outlet passage 7 that large.
This occurs quite frequently, and the nozzle tube 5 must be removed and cleaned each time. This phenomenon is particularly severe in upward welding, etc., to the point where it is almost impossible to do the work.
（ニ）問題点を解決するための手段
コンタクトチップ４とノズル筒５との間のガス流出路７
にセラミックスのボールを挿置して置き、コンタクトチ
ップ４の尖端（ノズル筒５の開口部）に上記挿置ボール
の抜け止め端子を取付ける。(d) Means for solving the problem Gas outlet passage 7 between the contact tip 4 and the nozzle tube 5
A ceramic ball is inserted into the contact tip 4, and a retaining terminal of the inserted ball is attached to the tip of the contact tip 4 (the opening of the nozzle tube 5).
（ホ）実施例
本発明に係るガスシールド・アーク溶接用トーチノズル
の実施例を、上記第２図に示した従来ノズルの改良型と
して第１図に示す。第１図はノズル筒５とコンタクトチ
ップ４の先頭部分を切断して示したもので第２図の部分
符号と同一符号は同一部分を示す。ノズル筒５とコンタ
クトチップ４との間隙のガス流出路７にセラミックスの
多数のボール８を納め、コンタクトチップ４の先端部を
外周ねじ切り部９とし、該ねじ切り部９に上記ボール８
の抜け止め端子１０を螺合固定する。該端子１０の外径
は当然コンタクトチップ４の径よりも大径となる。そし
てモリブデン合金又はタングステン合金等の耐熱性材と
されるのがよい。(E) Example An example of the torch nozzle for gas shielded arc welding according to the present invention is shown in FIG. 1 as an improved version of the conventional nozzle shown in FIG. 2 above. FIG. 1 shows the nozzle tube 5 and the top portion of the contact tip 4 cut away, and the same reference numerals as those in FIG. 2 indicate the same parts. A large number of ceramic balls 8 are placed in the gas outlet passage 7 in the gap between the nozzle tube 5 and the contact tip 4, the tip of the contact tip 4 is made into an outer peripheral threaded part 9, and the balls 8 are inserted into the threaded part 9.
The retaining terminal 10 is screwed and fixed. The outer diameter of the terminal 10 is naturally larger than the diameter of the contact tip 4. It is preferable to use a heat-resistant material such as a molybdenum alloy or a tungsten alloy.
第３・４図に上記ボール抜け止め端子の仙の実施例を示
す。第３図はトーチノズルの前半部について第１図同様
トーチノズルを切断しコンタクトチップ４の先端部を切
断して示し、第４図は第３図のＡ矢示正面図である。ボ
ール抜け止め端子をその尖端部にノズル筒５の先端面を
覆う如き径大鍔面１０ｂを形成するボール抜け止め端子
１０ａとし、そして第４図に示すように上記鍔面１０ｂ
のシールドガス流出路７に該当する円周部分に、シール
ドガス流出の円孔１１を備える。このような構造のボー
ル俵は止め端子にされれば、溶接時のノズル筒の保護も
兼ね高機能のトーチノズルとするものである。Figures 3 and 4 show an embodiment of the ball retaining terminal. FIG. 3 shows the front half of the torch nozzle by cutting off the torch nozzle and cutting off the tip of the contact tip 4 as in FIG. 1, and FIG. 4 is a front view in the direction of arrow A in FIG. 3. The ball retaining terminal is a ball retaining terminal 10a having a large-diameter flange surface 10b that covers the tip surface of the nozzle tube 5 at its tip, and the flange surface 10b as shown in FIG.
A circular hole 11 for shielding gas outflow is provided in a circumferential portion corresponding to the shielding gas outflow path 7. If the ball bale having such a structure is used as a stop terminal, it will serve as a highly functional torch nozzle that also protects the nozzle tube during welding.
このように構成されて、ノズル筒５のガス流出路７内に
納められるのはボールであるからガスが流出するだけの
間隙は充分にあり、又ボールはセラミックスであるから
スタツパが付着することがなくノズル筒５とコンタクト
チップ４とが短絡するような恐れは全くない。With this structure, since the ball is housed in the gas outlet passage 7 of the nozzle tube 5, there is a sufficient gap for the gas to flow out, and since the ball is made of ceramics, there is no chance of sticking particles sticking to it. There is no fear that the nozzle tube 5 and the contact tip 4 will be short-circuited.
（へ）発明の効果
本発明に係るガスシールド・アーク溶接用トーチノズル
によれば、上記の如くノズル筒内のガス流出路にはセラ
ミック・ボールが納められているから、溶接中に溶接棒
（ワイヤー）及び溶着金属のアークによるスパッタが上
記ガス流出路中に侵入して溶接不能にするような不具合
は完全に防止され、又上記第３図の実施例に示したよう
なボール抜け止めリングとすればノズル筒尖端の保護も
兼ね得るものとなる。(f) Effects of the Invention According to the torch nozzle for gas shielded arc welding according to the present invention, since the ceramic ball is housed in the gas outlet passage in the nozzle cylinder as described above, the welding rod (wireless wire) is used during welding. ) and spatter of the welded metal due to the arc entering the gas outlet passage and making welding impossible can be completely prevented. It can also serve as protection for the tip of the nozzle tube.
第１図は本発明に係るガスシールド・アーク溶接用トー
チノズルの実施例図でノズル筒とコンタクトチップの先
頭部を切断して示す。第２図は従来一般のガスシールド
・アーク溶接用トーチノズルを示す断面図、第３図はボ
ール抜け止め端子の他の実施例について示づもので第４
図はそのＡ矢示正面図である。
１・・・トーチノズル、 ４・・・コンタクトチップ。
５・・・ノズル筒、 ７・・・シールドガス流出路
。
８・・・セラミックボール。
１０・１０ａ・・・ボール抜け止め端子。
１０ｂ・・・鍔面。FIG. 1 is an embodiment of a gas-shielded arc welding torch nozzle according to the present invention, with the nozzle tube and the top of the contact tip cut away. Fig. 2 is a sectional view showing a conventional general torch nozzle for gas shielded arc welding, Fig. 3 shows another embodiment of the ball retaining terminal;
The figure is a front view in the direction of arrow A. 1...Torch nozzle, 4...Contact tip. 5... Nozzle tube, 7... Shield gas outflow path. 8...Ceramic ball. 10・10a... Ball retaining terminal. 10b...Tsuba side.
Claims (1)
ス流出路内に多数のセラミック・ボールを納め、上記コ
ンタクトチップ尖端部に上記セラミック・ボールの抜け
止め端子を備えることを特徴とするガスシールド溶接用
トーチノズル。 ２、ボール抜け止め端子はトーチノズルのコンタクトチ
ップ先端をねじ切りし、該ねじに螺合取付けする特許請
求の範囲第１項記載のガスシールド溶接用トーチノズル
。 ３、ボール抜け止め端子はその尖端部にノズル筒の先端
面を覆う如き径大鍔面を形成する特許請求の範囲第１項
記載のガスシールド溶接用トーチノズル。[Claims] 1. A large number of ceramic balls are housed in a gas outlet path between the nozzle tube of the torch nozzle and the contact tip, and a terminal for preventing the ceramic balls from coming off is provided at the tip of the contact tip. Torch nozzle for gas shield welding. 2. The torch nozzle for gas shield welding according to claim 1, wherein the ball retaining terminal is threaded at the tip of the contact tip of the torch nozzle and is screwed onto the thread. 3. The torch nozzle for gas shield welding as set forth in claim 1, wherein the ball retaining terminal has a large-diameter flange surface at its tip portion so as to cover the tip surface of the nozzle tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13832288A JPH0667555B2 (en) | 1988-06-07 | 1988-06-07 | Torch nozzle for gas shield welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13832288A JPH0667555B2 (en) | 1988-06-07 | 1988-06-07 | Torch nozzle for gas shield welding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01309787A true JPH01309787A (en) | 1989-12-14 |
| JPH0667555B2 JPH0667555B2 (en) | 1994-08-31 |
Family
ID=15219193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13832288A Expired - Lifetime JPH0667555B2 (en) | 1988-06-07 | 1988-06-07 | Torch nozzle for gas shield welding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0667555B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1764179A2 (en) * | 2005-09-19 | 2007-03-21 | Lincoln Global, Inc. | Contact tip with a flange; Insulated protective sleeve; Metal nozzle with gripping means; Torch for arc welding with a wire with such contact tip, insulating protective sleeve and metal nozzle |
| WO2015148656A1 (en) * | 2014-03-25 | 2015-10-01 | Elco Enterprises, Inc. | End assembly for a welding device with diffuser sleeve and insert having both hole; methods of controlling a flow of gas in a welding device or of cooling a contact tip of a welding device |
| EP3075482A1 (en) * | 2015-03-24 | 2016-10-05 | Elco Enterprises, Inc. | End assembly for a welding device with diffuser sleeve and insert having both hole ; method of controlling a flow of gas in a welding device |
| US9950386B2 (en) | 2014-03-25 | 2018-04-24 | Elco Enterprises, Inc. | Method and end assembly for welding device |
| US10155280B2 (en) | 2014-03-25 | 2018-12-18 | Elco Enterprises, Inc. | End assembly for welding device |
| CN115229314A (en) * | 2022-07-29 | 2022-10-25 | 安徽中科大禹科技有限公司 | Dissimilar metal plate welding equipment |
-
1988
- 1988-06-07 JP JP13832288A patent/JPH0667555B2/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1764179A2 (en) * | 2005-09-19 | 2007-03-21 | Lincoln Global, Inc. | Contact tip with a flange; Insulated protective sleeve; Metal nozzle with gripping means; Torch for arc welding with a wire with such contact tip, insulating protective sleeve and metal nozzle |
| EP1764179A3 (en) * | 2005-09-19 | 2007-05-23 | Lincoln Global, Inc. | Contact tip with a flange ; Insulated protective sleeve ; Metal nozzle with gripping means ; Torch for arc welding with a wire with such contact tip, insulating protective sleeve and metal nozzle |
| US8552341B2 (en) | 2005-09-19 | 2013-10-08 | Lincoln Global, Inc. | Torch for arc welding gun |
| WO2015148656A1 (en) * | 2014-03-25 | 2015-10-01 | Elco Enterprises, Inc. | End assembly for a welding device with diffuser sleeve and insert having both hole; methods of controlling a flow of gas in a welding device or of cooling a contact tip of a welding device |
| US9950386B2 (en) | 2014-03-25 | 2018-04-24 | Elco Enterprises, Inc. | Method and end assembly for welding device |
| US10155280B2 (en) | 2014-03-25 | 2018-12-18 | Elco Enterprises, Inc. | End assembly for welding device |
| EP3705220A1 (en) * | 2014-03-25 | 2020-09-09 | Elco Enterprises, Inc. | Methods of controlling a flow of gas in a welding device or of cooling a contact tip of a welding device |
| US11203079B2 (en) | 2014-03-25 | 2021-12-21 | Elco Enterprises, Inc. | Method and end assembly for welding device |
| US11642738B2 (en) | 2014-03-25 | 2023-05-09 | Elco Enterprises, Inc. | Method and end assembly for welding device |
| EP3075482A1 (en) * | 2015-03-24 | 2016-10-05 | Elco Enterprises, Inc. | End assembly for a welding device with diffuser sleeve and insert having both hole ; method of controlling a flow of gas in a welding device |
| CN115229314A (en) * | 2022-07-29 | 2022-10-25 | 安徽中科大禹科技有限公司 | Dissimilar metal plate welding equipment |
| CN115229314B (en) * | 2022-07-29 | 2023-07-04 | 安徽中科大禹科技有限公司 | Dissimilar metal plate welding equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0667555B2 (en) | 1994-08-31 |
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