JPS61253183A - Welding tip - Google Patents
Welding tipInfo
- Publication number
- JPS61253183A JPS61253183A JP9499285A JP9499285A JPS61253183A JP S61253183 A JPS61253183 A JP S61253183A JP 9499285 A JP9499285 A JP 9499285A JP 9499285 A JP9499285 A JP 9499285A JP S61253183 A JPS61253183 A JP S61253183A
- Authority
- JP
- Japan
- Prior art keywords
- tip
- welding
- welding wire
- hole
- main body
- 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
Landscapes
- Arc Welding In General (AREA)
Abstract
Description
【発明の詳細な説明】
(産業上の利用分野)
本発明は、溶接ワイヤ自動送給式のアーク溶接機のトー
チに取付けられる溶接チップ、特にチップ本体に対する
先端チップの取付は技術に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a welding tip attached to a torch of an automatic welding wire feeding type arc welding machine, and particularly to a technique for attaching the tip to the tip body.
(従来の技術)
近年の鋼製品の組立てにおいては、溶接継手が多用され
、それには溶接ワイヤ自動送給式のアーク溶接機が多く
使用されている。(Prior Art) In recent years, welded joints are often used in the assembly of steel products, and arc welding machines with automatic welding wire feeding are often used for this purpose.
この種のアーク溶接機は、フィル状に巻取られた別置の
溶接ワイヤを電動装置等で直線状に繰り出しながら送給
し、これをトーチに取付けた溶接子ノブの挿入孔に挿通
させて一定の送給方向を確保し、かつ溶接ワイヤを前記
溶接チップの挿入孔の内壁に接触させることによって溶
接チップから溶接ワイヤに溶接電流を通電し、溶接チッ
プ先端部で、溶接ワイヤと母材との間にアークを発生さ
せて溶接するように形成されている。This type of arc welding machine uses a separately placed welding wire wound into a fill shape to feed it in a straight line using an electric device, etc., and inserts it into the insertion hole of the welder knob attached to the torch. By ensuring a constant feeding direction and bringing the welding wire into contact with the inner wall of the insertion hole of the welding tip, welding current is applied from the welding tip to the welding wire, and the welding wire and base metal are connected at the tip of the welding tip. It is designed to weld by generating an arc between the two.
前記溶接チップは、電導率のよい胴や銅合金で形成する
ものであるが、溶接ワイヤが常時摺接することから、溶
接チップの挿入孔、特に先端部分が激しく摩耗し、この
摩耗によって溶接ワイヤに遊びが生じるため、アークの
乱れ、溶接部の脚長の不揃い、溶は込み不足、ビートの
乱れ等の溶接欠陥が生じたり、溶接ワイヤと挿入孔の隙
間にスパッタが侵入し、これが溶接ワイヤの送給を停止
させ、溶接が中断してしまう等のトラブルが発生してい
た。The welding tip is made of a body or copper alloy with good conductivity, but because the welding wire is constantly in sliding contact with the welding tip, the insertion hole of the welding tip, especially the tip, is severely worn, and this wear causes the welding wire to become damaged. Because of the play, welding defects such as arc disturbance, uneven weld leg length, insufficient penetration, and irregular beats may occur, and spatter may enter the gap between the welding wire and the insertion hole, which may cause problems in the welding wire feed. Problems such as stopping the supply and interrupting welding were occurring.
このようなことから、従来の溶接チップでは、チップ本
体の先端に、耐熱耐摩耗性素材、例えば銅お上びタング
“、テンよりなる焼結合金やセラミンク等による先端チ
ップを取付けるようにしていた。For this reason, in conventional welding tips, a tip made of a heat-resistant and wear-resistant material, such as a sintered alloy made of copper, a sintered alloy made of ten, or ceramics, is attached to the tip of the tip body. .
そして、この先端チップの取付は構造としては、チップ
本体の先端に嵌合穴を形成し、この嵌合穴に先端チップ
を嵌め込んで、これを有機質の接着剤により固着させた
り、或いは、実開昭52−26630号公報に示すよう
に、ネジ込みによって固着させるものが知られている。The structure for attaching this tip is to form a fitting hole at the tip of the tip body, fit the tip into the fitting hole, and fix it with an organic adhesive, or to As shown in Japanese Patent Application Laid-Open No. 52-26630, there is known a device that is fixed by screwing.
(発明が解決しようとする問題点)
しかしながら、従来のように先端チップを有機質の接着
剤やネジ込みによって固着させるものでは、溶接電流値
が20OAから30OAで使用される時の溶接チップの
温度力弓70℃から230°Cとなることから、溶接チ
ップと焼結合金との熱膨張率の違いによって取付部に隙
間が生じると共に、有機質の接着剤の耐熱温度(略20
0°C)が低いために、接着面が剥離してしまい、この
結果、先端チップか脱落したり、ガタが生じてしまうと
いう問題があった。(Problem to be solved by the invention) However, in the conventional method in which the tip is fixed by organic adhesive or screwing, the temperature of the welding tip when used at a welding current value of 20OA to 30OA is Since the bow temperature ranges from 70°C to 230°C, there will be a gap in the mounting part due to the difference in thermal expansion coefficient between the welding tip and the sintered alloy, and the heat resistance temperature of the organic adhesive (approximately 20°C) will occur.
Since the temperature (0°C) is low, the adhesive surface peels off, resulting in the tip tip falling off or wobbling.
(問題点を解決するための手段)
本発明は、かかる従来の問題点を解決するためになされ
たものて゛、このだめの技術的手段として本発明では、
チップ本体の先端に、耐熱耐摩耗性を有する先端チップ
が装着された溶接チップにおいて、前記チップ本体の先
端面に嵌合穴を形成し、該嵌合穴に先端チップを焼す嵌
めによI)嵌着した構成を採用することとした。(Means for Solving the Problems) The present invention has been made to solve the problems of the conventional art.As a further technical means, the present invention provides heat-resistant and abrasion-resistant material at the tip of the tip body. In the welding tip to which a tip having a tip is attached, a fitting hole is formed in the tip surface of the tip body, and the tip is fitted into the fitting hole by burning. did.
(作用)
従って、本発明の溶接チップでは、チップ本体の先端に
嵌合穴を形成し、該嵌合穴に先端チップを焼き嵌めによ
り嵌着するために、チップ本体と先端チップの熱膨張率
の違いによって生じる隙間以上に締め代が設定されるこ
とになり、先端チップがガタ付いたり、脱落することは
ない。(Function) Therefore, in the welding tip of the present invention, a fitting hole is formed at the tip of the tip body, and in order to fit the tip into the fitting hole by shrink fitting, the thermal expansion coefficient of the tip body and the tip is The tightening margin is set to be larger than the gap caused by the difference in the size, so the tip will not wobble or fall off.
又、先端チップが耐熱耐摩耗性を有しているので、熱に
よる変形や破壊もなく、又、溶接ワイヤの摺接による先
端チップの摩耗もなく、溶接ワイヤを常に一定方向に正
常に繰り出すことができる。In addition, since the tip has heat and abrasion resistance, there is no deformation or breakage due to heat, and there is no wear of the tip due to sliding contact of the welding wire, and the welding wire can always be fed out normally in a fixed direction. I can do it.
(実施例) 以下、本発明の実施例を図面に示して説明する。(Example) Embodiments of the present invention will be described below with reference to the drawings.
この実施例の溶接チップAは、チップ本体1と、先端チ
ップ2と、から構成されている。The welding tip A of this embodiment is composed of a tip body 1 and a distal tip 2.
チップ本体1は、銅クロム合金で略棒状に形成され、軸
心には挿入孔3が貫通して形成され、かつ先端側は円筒
状に形成され、その先端面4には、前記挿入孔3と同軸
の嵌合穴5が形成され、又、基端には段部6を介して雄
ネジ7が突設され、該雄ネ77の先端面8にはテーパガ
イド穴9が形成されている。The tip body 1 is made of a copper chromium alloy and is formed into a substantially rod shape, and has an insertion hole 3 penetrating through its axis, and is formed in a cylindrical shape at the tip side. A fitting hole 5 is formed coaxially with the male thread 7, and a male thread 7 is protruded from the base end through a step 6, and a tapered guide hole 9 is formed in the distal end surface 8 of the male thread 77. .
前記先端チップ2は、純度99.5%程度のアルミナ系
セラミックスで、7ランン11を一方に有した円筒状に
形成され、円筒部の肉厚1.が嵌合穴5の肉厚L2以下
とされ、かつ軸心に設けた〃イド穴12は前記挿入孔3
の直径と同一に形成され、かつ7ランノ面10は鏡面仕
上げされている。The tip 2 is made of alumina-based ceramics with a purity of about 99.5%, and is formed into a cylindrical shape with 7 runs 11 on one side, and the wall thickness of the cylindrical portion is 1. is less than or equal to the wall thickness L2 of the fitting hole 5, and the id hole 12, which is provided at the axis, is similar to the insertion hole 3.
, and the seven run surfaces 10 are mirror-finished.
尚、この先端チップ2の外径は、前記嵌合穴5の内径に
対する締め代が0.02m+n程度になるように形成さ
れている。The outer diameter of the distal tip 2 is formed such that the interference with respect to the inner diameter of the fitting hole 5 is approximately 0.02 m+n.
前記先端チップ2は、焼き嵌めにより、チップ本体1の
嵌合穴5にガイド穴12を挿入孔3に符合させる状態で
嵌着されるもので、二の場合、まず不活性ガスの雰囲気
下でチップ本体1を加熱し、チップ本体1か略490°
Cに加熱されてから、先端チップ2を嵌め込むようにし
ている。 又、実施例では、チップ本体1の先端面4と
、先端チップ2の7ランン′11の内面11aと、の合
せ面にシリカ系無機質の接着剤20(耐熱温度400°
C)が塗布されており、これにより先端チップ2は一層
強固に固着される。The tip tip 2 is fitted into the fitting hole 5 of the tip body 1 by shrink fitting with the guide hole 12 aligned with the insertion hole 3. Heat the chip body 1 and heat the chip body 1 to approximately 490°.
After it is heated to C, the tip 2 is fitted. In addition, in the embodiment, a silica-based inorganic adhesive 20 (heat resistant temperature 40°
C) is applied, thereby making the distal tip 2 even more firmly fixed.
尚、図において、13はフィル状に巻取った溶接ワイヤ
、14は該溶接ワイヤ13の先端、15は前記溶接ワイ
ヤ13の電動送給装置、】6はトーチ、17はトーチ1
6の/ズルである。In the figure, 13 is a welding wire wound into a fill shape, 14 is a tip of the welding wire 13, 15 is an electric feeding device for the welding wire 13, ]6 is a torch, and 17 is a torch 1
6/cheating.
次に、本実施例の作用を、先端チップ2が半自動溶接機
に取付られな場合で説明する。Next, the operation of this embodiment will be explained with reference to a case where the tip 2 is not attached to a semi-automatic welding machine.
溶接チップAをトーチ16内に雄ネジ7で取付け、この
状態で電動送給装置15を作動させると、該電動送給装
置15により溶接ワイヤ13がトーチ16に送給され、
引き続きテーパガイド穴9に案内されなからチップ本体
1の挿入孔3に挿通されると共に、先端チップ2のガイ
ド穴12に挿通され、そして先端チップ2の7ランノ面
10から溶接ワイヤ13の先端14を突出させた状態で
溶接が行われることになる。When the welding tip A is installed in the torch 16 with the male screw 7 and the electric feeding device 15 is operated in this state, the welding wire 13 is fed to the torch 16 by the electric feeding device 15,
Subsequently, the tip 14 of the welding wire 13 is guided through the taper guide hole 9 and then inserted into the insertion hole 3 of the tip body 1, and is also inserted into the guide hole 12 of the distal tip 2, and then from the 7-run surface 10 of the distal tip 2. Welding will be carried out with the part protruding.
この溶接時において、溶接チップAの先端は約170°
C〜230°Cに加熱されることになるが、先端チップ
2は、0.02+n+nの締め代を持って焼き嵌め温度
約490°Cでチップ本体1に嵌着されているので、先
端チップ2とチップ本体1の熱膨張率の違いにより生ず
る隙間を締め代によって吸収することかで外、従って、
溶接作業時に先端チップ2が緩んで脱落するということ
はない。During this welding, the tip of welding tip A is approximately 170°
The tip tip 2 will be heated to 230 degrees Celsius, but since the tip tip 2 is fitted into the tip body 1 with an interference of 0.02+n+n at a shrink fitting temperature of about 490 degrees Celsius, the tip tip 2 By absorbing the gap caused by the difference in the coefficient of thermal expansion of the chip body 1 and the chip body 1 by the interference,
The tip 2 will not loosen and fall off during welding work.
又、前記先端チップ2を耐熱耐摩耗性を有するアルミナ
系のセラミックスで形成したので、溶接作業時の高温で
先端チップが変形したり、劣化したりすることもなく、
又溶接ワイヤ13が先端チップ2のガイド穴12に摺接
しても該ガイド穴12か摩耗することがないので、これ
まで−日に2.3回取替えなければならなかったものが
3ケ月は使用でき、その耐用寿命を大幅に向上すること
ができる。In addition, since the tip 2 is made of alumina-based ceramics that are heat-resistant and wear-resistant, the tip will not be deformed or deteriorated at high temperatures during welding work.
In addition, even if the welding wire 13 slides into the guide hole 12 of the tip 2, the guide hole 12 will not wear out, so the wire that previously had to be replaced 2.3 times a day can now be used for 3 months. and its service life can be greatly improved.
又、ガイド穴12の摩耗がないので溶接ワイヤ13が振
れることなく常に一定方向に繰り出され、母材との間に
適正なアークが形成され、脚長の不揃いや溶は込み不足
、ビートの乱れ等の欠陥を生じることかない。In addition, since there is no wear on the guide hole 12, the welding wire 13 is always fed out in a fixed direction without swinging, and an appropriate arc is formed between the welding wire 13 and the base metal, which eliminates problems such as uneven leg length, insufficient penetration, and irregular beats. No defects may occur.
又、先端チップ2の7ランノ面10を鏡面に研磨したの
で、又バッタが耐着しにくく、〃イド穴12にスパッタ
が侵入してガイド穴12と溶接ワイヤ13との隙間に食
い込むことがないので、溶接途中で溶接ワイヤ13の繰
り出しが停止して溶接が中断することもない。In addition, since the 7-run surface 10 of the tip 2 is polished to a mirror finish, it is difficult for grasshoppers to adhere to it, and spatter does not enter the guide hole 12 and bite into the gap between the guide hole 12 and the welding wire 13. Therefore, there is no possibility that welding wire 13 stops feeding out during welding and welding is interrupted.
以上、本発明の実施例を図面により説明したが、本発明
の具体的な構成はこの実施例に限定されるものではなく
、発明の要旨を逸脱しない範囲の設計変更等があっても
本発明の技術的範囲に含まれる。Although the embodiments of the present invention have been described above with reference to the drawings, the specific configuration of the present invention is not limited to these embodiments, and even if there are design changes within the scope of the invention, the present invention included in the technical scope of
例えば、本実施例では、先端チップをアルミナ系のセラ
ミックスで形成したが、これに限らずノルコニア等の池
のセラミックス、銅とタングステン等の合金を使用する
ことも可能である。For example, in this embodiment, the tip is made of alumina-based ceramics, but the tip is not limited to this, and it is also possible to use ceramics such as norconia, or alloys of copper and tungsten.
又、実施例では締め代を0.02mmに設定したが、こ
れに限られることはなく、O〜0.02mm程度の締め
代を一応の範囲としている。Further, in the embodiment, the tightening margin is set to 0.02 mm, but it is not limited to this, and the tightening margin is set within a range of about 0 to 0.02 mm.
又、実施例では、チップ本体の先端面と、先端チップの
7ランノ内面と、の間に無機質の接着剤を塗付したが、
この接着剤による接合は必ずしも必要でない。In addition, in the example, an inorganic adhesive was applied between the tip surface of the tip body and the 7-run inner surface of the tip tip.
This adhesive bonding is not necessarily required.
又、第4図に示すように先端チップ21の端面に7ラン
ノ面を形成しないで、チップ本体1の先端面22と先端
チップ21の先端面23が均−面になるように形成して
も良い。Alternatively, as shown in FIG. 4, instead of forming a 7-run surface on the end surface of the tip 21, the tip surface 22 of the tip body 1 and the tip surface 23 of the tip 21 may be formed to be an even surface. good.
(発明の効果)
以上説明したように本発明によれば、先端チップを焼き
嵌めによりチップ本体の嵌合穴に嵌着させたので、溶接
作業中にアークによる加熱によって先端チップが脱落す
るといった不都合がない。(Effects of the Invention) As explained above, according to the present invention, since the tip is fitted into the fitting hole of the tip body by shrink fitting, there is an inconvenience that the tip falls off due to heating by the arc during welding work. There is no.
又、先端ナツプは耐熱耐摩耗性を有するので、アークに
よる高温に晒されても、変形したり劣化しrこりするこ
とかなく、又、溶接ワイヤの摺接によっても先端チップ
が摩耗しないので、溶接ワイヤは振れることなく正確な
位置に繰り出され、母材との開で適正なアークを形成し
て欠陥のない溶接を長期に亘って行なうことができる。In addition, the tip has heat and abrasion resistance, so it will not deform, deteriorate, or become stiff even when exposed to high temperatures caused by an arc, and the tip will not wear out even when the welding wire slides on it. The welding wire is fed out to a precise position without wobbling, forms an appropriate arc with the base metal, and can perform defect-free welding over a long period of time.
第1図は本発明実施例の溶接チップを示す断面図、第2
図は該溶接チップの斜視図、第3図は溶接ワイヤをトー
チに送給する説明図、第4図は先端チップの池例を示す
一部断面図である。
A:溶接チップ
にチップ本体
2:先端チップ。
4:先端面
5:嵌合穴Fig. 1 is a sectional view showing a welding tip according to an embodiment of the present invention;
FIG. 3 is a perspective view of the welding tip, FIG. 3 is an explanatory diagram of feeding the welding wire to the torch, and FIG. 4 is a partial cross-sectional view showing an example of a pond at the tip. A: Welding tip and tip body 2: Tip tip. 4: Tip surface 5: Fitting hole
Claims (1)
ップが装着された溶接チップにおいて、前記チップ本体
の先端面に嵌合穴を形成し、該嵌合穴に先端チップを焼
き嵌めにより嵌着したことを特徴とした溶接チップ。1) In a welding tip in which a heat-resistant and wear-resistant tip is attached to the tip of the tip body, a fitting hole is formed in the tip surface of the tip body, and the tip is fitted into the fitting hole by shrink fitting. A welding tip that is characterized by the fact that it is worn.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9499285A JPS61253183A (en) | 1985-05-02 | 1985-05-02 | Welding tip |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9499285A JPS61253183A (en) | 1985-05-02 | 1985-05-02 | Welding tip |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS61253183A true JPS61253183A (en) | 1986-11-11 |
Family
ID=14125371
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9499285A Pending JPS61253183A (en) | 1985-05-02 | 1985-05-02 | Welding tip |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS61253183A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3476521A1 (en) * | 2017-10-26 | 2019-05-01 | Newfrey LLC | Welding stud and method for the manufacture of a welding stud |
-
1985
- 1985-05-02 JP JP9499285A patent/JPS61253183A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3476521A1 (en) * | 2017-10-26 | 2019-05-01 | Newfrey LLC | Welding stud and method for the manufacture of a welding stud |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4575612A (en) | Arc welding guide tube with non-adhesive tip | |
KR20120051646A (en) | Contact tip with refractroy material reinforced copper composite, contact tip with front portion having reduced diameter | |
WO1986000843A1 (en) | Nozzle for gas-shielded arc welding | |
JPH02177284A (en) | Manufacture of ignition plug electrode | |
US3697721A (en) | Pyrolytic graphite nozzles and guide tubes for welding torches | |
EP0025990A1 (en) | Non-consumable composite welding electrode | |
USRE22411E (en) | Welding oboanization | |
US3470349A (en) | Guide for welding wire | |
JPS61253183A (en) | Welding tip | |
JP2012218046A (en) | Welding contact tip | |
JPS61253184A (en) | Welding tip | |
JPS5927674B2 (en) | Contact tip for consumable electrode type arc welding | |
KR101669406B1 (en) | A Ceramic Welding Contact Tip prevented burn back | |
JPS6380978A (en) | Welding torch | |
JP2005103643A (en) | Method for welding copper wire of torch head for carbon dioxide gas welding machine, and structure of torch head welded by the method | |
JPS6072684A (en) | Tig arc welding torch | |
JP2721276B2 (en) | Power tip for arc welding torch | |
JPH0321823Y2 (en) | ||
JP2914875B2 (en) | Method of fixing ceramic pieces by welding and ceramic pieces | |
JPS6064779A (en) | Guide nozzle of welding core wire for electric welding | |
JPH10193122A (en) | Contact tip for arc welding | |
JPS6024279A (en) | Arc welding device | |
JPH07256460A (en) | Contact tip for gas shield arc welding | |
JP2022007947A (en) | Power supply chip and power supply chip unit | |
JPS62104683A (en) | Welding torch |