JPH07100653A - Tip for welding - Google Patents
Tip for weldingInfo
- Publication number
- JPH07100653A JPH07100653A JP5269958A JP26995893A JPH07100653A JP H07100653 A JPH07100653 A JP H07100653A JP 5269958 A JP5269958 A JP 5269958A JP 26995893 A JP26995893 A JP 26995893A JP H07100653 A JPH07100653 A JP H07100653A
- Authority
- JP
- Japan
- Prior art keywords
- tip
- welding
- welding rod
- vertical slit
- passage hole
- 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
Landscapes
- Arc Welding In General (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は溶接用チップに関する。
さらに詳しくは、溶接ロボット等に好適な溶接用チップ
に関する。FIELD OF THE INVENTION This invention relates to welding tips.
More specifically, it relates to a welding tip suitable for a welding robot and the like.
【０００２】[0002]
【従来の技術】従来の溶接用チップは、チップの中心部
に溶接棒用通路孔が形成されており、その孔に溶接棒が
通されるようになっている。そして、長時間使用してい
ると、溶接棒用通路孔の周囲が摩耗し通路孔が拡大す
る。2. Description of the Related Art In a conventional welding tip, a welding rod passage hole is formed at the center of the tip, and the welding rod is passed through the hole. When used for a long time, the periphery of the welding rod passage hole is worn and the passage hole expands.
【０００３】[0003]
【発明が解決しようとする課題】ところが、前記従来の
溶接棒用通路孔が摩耗により拡大した溶接用チップを使
用する場合には、つぎのような問題があった。 溶接棒と溶接棒用通路孔の間で接触不良が生じるた
め、電流の流れが不安定となり溶接の品質が低下するの
で、通路孔が摩耗により一定限度以上に拡大した溶接用
チップは使用することができない。 溶接棒用通路孔が摩耗により拡大するときは、チッ
プの先端に形成された小孔も拡大するのが普通であるた
め、チップ先端から送出される溶接棒の先端が不安定と
なり、溶接棒を所望位置に当接することが困難となるの
で、溶接ロボット等で溶接棒を楕円状に動かすとき、と
くに、溶接の品質が低下するおそれがある。However, when using the welding tip in which the conventional welding rod passage hole is enlarged due to wear, there are the following problems. Since poor contact occurs between the welding rod and the passage hole for the welding rod, the flow of current becomes unstable and the quality of the welding deteriorates.Therefore, use a welding tip whose passage hole has expanded beyond a certain limit due to wear. I can't. When the passage hole for the welding rod expands due to wear, the small hole formed at the tip of the tip also usually expands, so the tip of the welding rod fed from the tip of the tip becomes unstable and Since it becomes difficult to contact the welding rod at a desired position, when the welding rod is moved in an elliptical shape by a welding robot or the like, there is a possibility that the quality of welding may be deteriorated.
【０００４】本発明は、かかる事情に鑑みて、溶接棒用
通路孔が摩耗により拡大しても、溶接棒と溶接棒用通路
孔の間の接触が良好で電流が安定しており、また、溶接
棒の先端を安定に固定できて正確な溶接をすることがで
き、溶接の品質向上を図ることができる溶接用チップを
提供することを目的とする。In view of such circumstances, the present invention provides good contact between the welding rod and the passage hole for the welding rod even if the passage hole for the welding rod expands due to wear, and the current is stable. An object of the present invention is to provide a welding tip capable of stably fixing the tip of a welding rod to perform accurate welding and improving the quality of welding.
【０００５】[0005]
【課題を解決するための手段】本発明の溶接用チップ
は、軸方向中心部に溶接棒用通路孔が形成された溶接用
チップであって、先端部および後端部を備えたチップ本
体とバネから構成されており、前記チップ本体の先端部
には、先端から前記溶接棒用通路孔に沿って延びる縦ス
リ割りが形成さるとともに、該縦スリ割りが形成された
範囲内において環状溝が形成されており、前記バネが前
記縦スリ割りを締め付けるように前記環状溝に嵌合され
ているを特徴とする。A welding tip according to the present invention is a welding tip having a welding rod passage hole formed in a central portion in an axial direction, and a tip body having a tip portion and a rear end portion. The tip body of the tip is formed of a spring, and a vertical slit extending from the tip along the welding rod passage hole is formed at the tip portion, and an annular groove is formed in the range where the vertical slit is formed. Is formed, and the spring is fitted in the annular groove so as to tighten the vertical slit.
【０００６】[0006]
【作用】本発明の溶接用チップは、チップ本体の先端部
に、先端から溶接棒用通路孔に沿って延びる縦スリ割り
が形成されるとともに、縦スリ割りが形成される範囲内
において環状溝が構成されており、環状溝には縦スリ割
りを締め付けるようにバネが嵌合されているため、縦ス
リ割りが形成された部分の溶接棒用通路孔内を通る溶接
棒は、常時締め付けられた状態となるので、摩耗により
溶接棒用通路孔の内径が拡大しても、溶接棒用通路孔の
内径を溶接棒の外径と略同一に維持することができる。
したがって、常に接触が良好で電流の供給が安定してお
り、また、溶接棒の先端が安定している。In the welding tip of the present invention, a vertical slit extending from the tip along the welding rod passage hole is formed at the tip of the tip body, and an annular groove is formed within the range where the vertical slit is formed. Since the spring is fitted in the annular groove so as to tighten the vertical slit, the welding rod passing through the welding rod passage hole in the portion where the vertical slit is formed is always tightened. Therefore, even if the inner diameter of the welding rod passage hole increases due to wear, the inner diameter of the welding rod passage hole can be maintained substantially the same as the outer diameter of the welding rod.
Therefore, the contact is always good, the current supply is stable, and the tip of the welding rod is stable.
【０００７】[0007]
【実施例】つぎに本発明の実施例を図面に基づいて説明
する。 （第１実施例）図１は本発明の第１実施例である溶接用
チップＡの斜視図である。この溶接用チップＡは、チッ
プ本体１とバネ３から構成されている。チップ本体１
は、図１および図３に示すように、先端部11と後端部21
から構成されており、チップ本体１の軸方向中心部には
溶接棒用通路孔６が形成されている。そして、溶接棒用
通路孔６の先端は、先端部11の先端12の中心部に小孔17
を形成している。Embodiments of the present invention will now be described with reference to the drawings. (First Embodiment) FIG. 1 is a perspective view of a welding tip A which is a first embodiment of the present invention. This welding tip A is composed of a tip body 1 and a spring 3. Chip body 1
Is a front end portion 11 and a rear end portion 21 as shown in FIGS.
And a welding rod passage hole 6 is formed at the center of the tip body 1 in the axial direction. The tip of the welding rod passage hole 6 has a small hole 17 at the center of the tip 12 of the tip 11.
Is formed.
【０００８】チップ本体１の先端部11は、縦長の円錐台
状部材であり、先端12から溶接棒用通路孔６に沿って延
びる縦スリ割り13が円錐台状部材の底面付近まで形成さ
れている。すなわち、縦スリ割り13は、図１〜３に示す
ように円錐台状部材の先端12から底面付近までの間で円
錐台状部材を直径方向に２分割するように形成されてい
る。なお、本実施例では縦スリ割り13の幅ｘを0.4mm と
したが、その大きさは自在に設定できる。The tip 11 of the tip body 1 is a vertically elongated truncated cone-shaped member, and a vertical slit 13 extending from the tip 12 along the welding rod passage hole 6 is formed up to near the bottom of the truncated cone. There is. That is, as shown in FIGS. 1 to 3, the vertical slit 13 is formed so as to divide the truncated cone-shaped member into two in the diametrical direction from the tip 12 of the truncated cone-shaped member to the vicinity of the bottom surface. In this embodiment, the width x of the vertical slit 13 is set to 0.4 mm, but the size can be set freely.
【０００９】また、縦スリ割り13の終端部よりやや上方
には横スリ割り14が形成されている。すなわち、横スリ
割り14は、図１および図３に示すように、縦スリ割り13
の終端部よりやや上方の縦スリ割り13の両側で、図４に
示すように、縦スリ割り13に直角に形成された半円板状
の切欠きである。なお、本実施例では横スリ割り14の幅
ｙを0.4mm としたが、その大きさは自在に設定できる。
また、本実施例では横スリ割り14を、縦スリ割り13の終
端部よりやや上方に形成したが、その位置は自在に設定
できる。しかし、横スリ割り14は、縦スリ割り13を後述
するバネで締め易くするために形成されていることを考
慮すると、本実施例のように縦スリ割り13の終端部より
やや上方に形成するのが好ましい。なお、横スリ割り14
は、必ずしも必要なものではないが、縦スリ割り13を効
果的に機能させるためには本実施例のように形成してお
くことが好ましい。A horizontal slit 14 is formed slightly above the end of the vertical slit 13. That is, the horizontal slit 14 has a vertical slit 13 as shown in FIGS.
As shown in FIG. 4, it is a semi-disc-shaped notch formed on both sides of the vertical slit 13 slightly above the terminal end of the vertical slit 13. In this embodiment, the width y of the lateral slit 14 is 0.4 mm, but the size can be set freely.
Further, in this embodiment, the horizontal slit 14 is formed slightly above the end of the vertical slit 13, but the position can be set freely. However, considering that the horizontal slit 14 is formed to facilitate the tightening of the vertical slit 13 with a spring described later, the horizontal slit 14 is formed slightly above the end portion of the vertical slit 13 as in the present embodiment. Is preferred. In addition, horizontal slot 14
Is not necessarily required, but is preferably formed as in this embodiment in order to make the vertical slit 13 effectively function.
【００１０】さらに、チップ本体１の先端部11の先端付
近には、外周に沿って環状溝16が形成されている。な
お、本実施例では環状溝16をチップ本体１の先端部11の
先端付近に形成したが、環状溝16の形成位置は縦スリ割
り13が形成された範囲内において自在に設定することが
できる。しかし、後述するように、環状溝16には縦スリ
割り13を締め付けるためのバネが嵌合されることを考慮
すると、縦スリ割り13の締め付けを効果的に行うために
は、本実施例のようにチップ本体１の先端部11の先端付
近に環状溝16を形成することが好ましい。なお、本実施
例のように、縦スリ割り13の終端部よりやや上方に横ス
リ割り14が形成されている場合には、横スリ割り14の形
成位置より上方に環状溝16を形成すればよい。チップ本
体１の後端部21は、図１および図３に示すように、溶接
機（図示省略）に接続するネジ部23を備えており、後端
部21の軸方向中心部には溶接棒用通路孔６が形成されて
いる。Further, an annular groove 16 is formed near the tip of the tip portion 11 of the chip body 1 along the outer circumference. In this embodiment, the annular groove 16 is formed near the tip of the tip portion 11 of the chip body 1. However, the formation position of the annular groove 16 can be freely set within the range where the vertical slit 13 is formed. . However, as will be described later, considering that a spring for tightening the vertical slit 13 is fitted in the annular groove 16, in order to effectively tighten the vertical slit 13, in order to effectively tighten the vertical slit 13. Thus, it is preferable to form the annular groove 16 near the tip of the tip portion 11 of the chip body 1. When the horizontal slit 14 is formed slightly above the terminal end of the vertical slit 13 as in the present embodiment, the annular groove 16 may be formed above the position where the horizontal slit 14 is formed. Good. As shown in FIGS. 1 and 3, the rear end portion 21 of the tip body 1 is provided with a screw portion 23 that is connected to a welding machine (not shown), and a welding rod is provided at the center of the rear end portion 21 in the axial direction. A passage hole 6 is formed.
【００１１】バネ３は、図５に示すように、Ｃ形板バネ
であり、バネ鋼を材質としている。そして、バネ３は、
図１および図３に示すように、環状溝16に嵌め合わさ
れ、縦スリ割り13を締め付ける役目を果たすものである
ため、バネ３の内径は環状溝16の外径よりやや小さく形
成され、環状溝16に嵌め合わされている。すなわち、本
実施例では環状溝16の外径３mmに対し、バネ３の内径を
2.5mm としたが、その大きさは自在に設定することがで
きる。また、バネ３の厚さは、環状溝16の幅に応じて自
在に設定することができ、本実施例では環状溝16の幅を
１mm、バネ３の厚さを0.5mm とした。As shown in FIG. 5, the spring 3 is a C-shaped leaf spring and is made of spring steel. And the spring 3
As shown in FIGS. 1 and 3, since the spring 3 is fitted in the annular groove 16 and serves to tighten the vertical slit 13, the inner diameter of the spring 3 is formed to be slightly smaller than the outer diameter of the annular groove 16. Fitted in 16. That is, in this embodiment, the inner diameter of the spring 3 is set to the outer diameter of the annular groove 16 of 3 mm.
The size is 2.5 mm, but the size can be set freely. Further, the thickness of the spring 3 can be set freely according to the width of the annular groove 16, and in this embodiment, the annular groove 16 has a width of 1 mm and the spring 3 has a thickness of 0.5 mm.
【００１２】なお、本実施例ではバネ３としてバネ鋼を
材質とする板バネを使用したが、環状溝16に嵌め合わさ
れ縦スリ割り13を締め付けることができれば、どのよう
なものでもよく、たとえば形状記憶合金を材質とするも
のを使用することができる。そして、形状記憶合金を材
質とする場合は、約500 ℃の周辺温度でバネ３の内径が
環状溝16の外径よりやや小さくなるように成形されてお
り、室温で環状溝16に嵌め合わされている。なお、バネ
３の厚さは板バネの場合と同様でよい。Although a leaf spring made of spring steel is used as the spring 3 in this embodiment, any spring may be used as long as it can be fitted into the annular groove 16 and tighten the vertical slit 13. A material made of a memory alloy can be used. When a shape memory alloy is used as the material, the spring 3 is molded such that the inner diameter of the spring 3 is slightly smaller than the outer diameter of the annular groove 16 at an ambient temperature of about 500 ° C. There is. The thickness of the spring 3 may be the same as that of the leaf spring.
【００１３】つぎに、本実施例の溶接用チップＡの作用
について説明する。溶接用チップＡの環状溝16には、環
状溝16の外径よりやや小さい内径のＣ形板バネ３が嵌め
合わされているため、溶接棒用通路孔６を通ってチップ
本体１の先端部11の先端12に形成された小孔17から突出
した溶接棒（図示省略）は、縦スリ割り13が形成された
範囲内においてＣ形板バネ３によって締め付けられる。Next, the operation of the welding tip A of this embodiment will be described. Since the C-shaped leaf spring 3 having an inner diameter slightly smaller than the outer diameter of the annular groove 16 is fitted in the annular groove 16 of the welding tip A, the tip portion 11 of the tip body 1 passes through the welding rod passage hole 6. A welding rod (not shown) projecting from a small hole 17 formed at the tip 12 of the is clamped by the C-shaped leaf spring 3 within the range where the vertical slit 13 is formed.
【００１４】また、形状記憶合金を材質とするバネ３の
場合は、溶接時にバネ３の周辺温度が約500 ℃に達する
ため、バネ３の内径は溶接時に元の成形時の大きさに戻
るので、溶接棒用通路孔６を通ってチップ本体１の先端
部11の先端12の小孔17から突出した溶接棒は、溶接時に
縦スリ割り13が形成された範囲内において記憶形状合金
バネ３によって締め付けられる。Further, in the case of the spring 3 made of a shape memory alloy, since the peripheral temperature of the spring 3 reaches about 500 ° C. during welding, the inner diameter of the spring 3 returns to the original size at the time of welding. The welding rod protruding from the small hole 17 of the tip 12 of the tip portion 11 of the tip body 1 through the welding rod passage hole 6 is formed by the memory shape alloy spring 3 within the range where the vertical slit 13 is formed during welding. Tightened.
【００１５】以上のように、本実施例の溶接用チッブＡ
を使用すれば、縦スリ割り13が形成された範囲内にある
溶接棒は、縦スリ割り13で締め付けられ溶接棒用通路孔
６に密着した状態となるため、摩耗により溶接棒用通路
孔６の内径が大きくなっても、その内径を溶接棒の外径
と略同一に維持することができる。したがって、溶接棒
と溶接棒用通路孔６との接触が良好となり電流が安定に
供給されるため、溶接箇所の品質の向上を図ることがで
きる。また、チップ本体１の先端部11の先端12の小孔17
から突出した溶接棒の先端が安定しているため、溶接棒
の先端を所望位置に当接することができるので、正確な
溶接をすることができるとともに溶接作業の能率向上を
図ることができる。As described above, the welding chip A of this embodiment is used.
Is used, the welding rod existing in the range where the vertical slit 13 is formed is tightened by the vertical slit 13 and comes into close contact with the welding rod passage hole 6, so that the welding rod passage hole 6 is worn due to wear. Even if the inner diameter of the welding rod becomes large, the inner diameter can be kept substantially the same as the outer diameter of the welding rod. Therefore, the contact between the welding rod and the welding rod passage hole 6 is good, and the current is stably supplied, so that the quality of the welded portion can be improved. In addition, a small hole 17 at the tip 12 of the tip 11 of the chip body 1
Since the tip of the welding rod projecting from is stable, the tip of the welding rod can be brought into contact with a desired position, so that accurate welding can be performed and the efficiency of welding work can be improved.
【００１６】（第２実施例）前記第１実施例では、チッ
プ本体１が露出した状態であり、かつ、チップ本体１は
通常金属製であるため、次のような問題があった。すな
わち、第１実施例の溶接用チップＡを使用してガスアー
ク溶接作業を実施すると、溶接溶断中にスパッタが飛び
散り、その一部が金属製溶接用チップＡの先端12の小孔
17の周囲に付着し溶着して、溶接棒がチップ本体１の先
端12の小孔17からスムーズに送出されない事態が生じ、
溶接作業の能率が低下するおそれがある。(Second Embodiment) In the first embodiment, since the chip body 1 is exposed and the chip body 1 is usually made of metal, there are the following problems. That is, when the gas arc welding work is carried out using the welding tip A of the first embodiment, spatter is scattered during welding fusing, and a part thereof is a small hole at the tip 12 of the metal welding tip A.
There is a situation in which the welding rod adheres to the periphery of 17 and is welded, and the welding rod is not smoothly delivered from the small hole 17 of the tip 12 of the tip body 1,
The efficiency of welding work may decrease.
【００１７】そこで、本第２実施例では、図６〜７に示
すように、チップ本体１の先端部11にキャップ４を装着
した。キャップ４は、チップ本体１の先端部11と相似形
の円錐台状の筒体であり、鉄板により形成されている。
そして、先端はチップ本体１の先端部11の先端12に形成
された小孔17より大なる小孔42が形成された蓋41で閉じ
られ、終端は内側に折り曲げられた係止片43が形成され
ている。なお、キャップ４の内面形状は、環状溝16や横
スリ割り14等が形成されていない状態でのチップ本体１
の先端部11の外面形状と略同一である。Therefore, in the second embodiment, as shown in FIGS. 6 to 7, the cap 4 is attached to the tip portion 11 of the chip body 1. The cap 4 is a truncated cone-shaped cylindrical body similar to the tip portion 11 of the chip body 1, and is formed of an iron plate.
The tip is closed by a lid 41 having a small hole 42 larger than the small hole 17 formed at the tip 12 of the tip portion 11 of the chip body 1, and the terminal end is formed with a locking piece 43 bent inward. Has been done. The shape of the inner surface of the cap 4 is such that the annular groove 16 and the lateral slits 14 are not formed.
The shape of the outer surface of the tip portion 11 is substantially the same.
【００１８】したがって、キャップ４をチップ本体１の
先端部11に被せ、係止片43を先端部11の底面の外周に係
止させると、先端部11に確実にキャップ４を装着するこ
とができる。そして、チップ本体１の先端部11にキャッ
プ４を被せた溶接用チップＢを使用すると、スパッタが
飛び散り、キャップ４の蓋41の小孔42の周囲に付着して
も簡単に取り除くことができる。Therefore, when the cap 4 is covered on the tip portion 11 of the chip body 1 and the locking piece 43 is locked to the outer periphery of the bottom surface of the tip portion 11, the cap 4 can be securely mounted on the tip portion 11. . When the welding tip B in which the tip 4 of the tip body 1 is covered with the cap 4 is used, spatter is scattered and can be easily removed even if it is attached to the periphery of the small hole 42 of the lid 41 of the cap 4.
【００１９】なお、本実施例ではキャップ４の材質とし
て鉄板を使用したが、四ふっ化エチレン樹脂や亜鉛メッ
キした鉄板等を使用することができる。そして四ふっ化
エチレン樹脂や亜鉛メッキした鉄板等は、スパッタが非
常に付着しにくいため、スパッタ付着防止効果が顕著で
ある。また、キャップ４の表面にタフラム処理を施した
ものを使用することもできる。タフラム処理とは、硫酸
浴を用いてアルミニウムの表面に硬質の陽極酸化皮膜を
生成させ、この皮膜の多孔層に２μｍ以下のフッ化炭化
水素重合体の水性分散液を含浸させる処理であり、金属
表面を非常に滑りやすくすることができる。Although an iron plate is used as the material of the cap 4 in this embodiment, an ethylene tetrafluoride resin, a galvanized iron plate, or the like can be used. Further, since ethylene tetrafluoride resin, a zinc-plated iron plate, and the like are extremely difficult for spatter to adhere, the spatter adhesion preventing effect is remarkable. Further, it is also possible to use a cap 4 whose surface is toughened. Toughram treatment is a treatment in which a hard anodic oxide film is formed on the surface of aluminum using a sulfuric acid bath, and the porous layer of this film is impregnated with an aqueous dispersion of a fluorohydrocarbon polymer of 2 μm or less. The surface can be made very slippery.
【００２０】以上のように、本実施例のキャップ４付溶
接用チップＢを使用すると、前記第１実施例の効果に加
えて、キャップ４の蓋41の小孔42の周囲にスパッタがほ
とんど付着しないか、付着しても容易に取り除くことが
できるので、溶接作業の能率をいっそう向上させること
ができる。As described above, when the welding tip B with the cap 4 of this embodiment is used, in addition to the effect of the first embodiment, almost all spatter adheres to the periphery of the small hole 42 of the lid 41 of the cap 4. If it does not, or if it adheres, it can be easily removed, so that the efficiency of the welding operation can be further improved.
【００２１】（第３実施例）前記第１実施例および第２
実施例では、チップ本体１の先端部11に縦スリ割り13を
形成し、環状溝16に嵌め合せたバネ３で縦スリ割り13を
締め付けて、溶接棒用通路孔６の内径と溶接棒の外径を
略同一に維持しうるようにしているが、これらをロボッ
ト溶接機に使用する場合には、次のような問題があっ
た。すなわち、ロボット溶接機では溶接棒を旋回させな
がら溶接を行うため、チップ本体１の先端部11の先端付
近は、縦スリ割り13が形成された直径方向に摩耗し、溶
接棒が縦スリ割り13内に入り、溶接箇所の品質低下、溶
接作業の能率低下をきたすおそれがある。(Third Embodiment) The first embodiment and the second embodiment
In the embodiment, a vertical slit 13 is formed in the tip portion 11 of the tip body 1, and the vertical slit 13 is tightened by the spring 3 fitted in the annular groove 16 so that the inner diameter of the welding rod passage hole 6 and the welding rod Although the outer diameters can be kept substantially the same, there are the following problems when these are used in a robot welding machine. That is, since the robot welding machine performs welding while rotating the welding rod, the tip body 11 is worn in the diametrical direction where the vertical slit 13 is formed in the vicinity of the tip of the tip portion 11, and the welding rod is vertically slit 13. If it gets inside, the quality of the welded part may deteriorate and the efficiency of the welding work may decrease.
【００２２】そこで、本第３実施例では、図８〜９に示
すように、チップ本体１の先端部11の先端12にプロテク
タ５を接合し、その上からキャップ４を装着した。プロ
テクタ５は、中心部に小孔51が形成されたセラミック製
の円板であり、小孔51の内径は溶接棒用通路孔６の内径
と略同一で、プロテクタ５の外径はチップ本体１の先端
部11の先端12の外径と略同一に形成されている。なお、
本実施例ではプロテクタ５の厚さを1.5mm としたが、そ
の寸法は自在に設定することができる。また、プロテク
タ５は、小孔51の内径が溶接棒用通路孔６の内径と略同
一であれば、プロテクタ５の外径は自在に設定すること
ができるが、プロテクタ５をチップ本体１の先端部11の
先端12に接合し、その上からキャップ４を装着すること
を考慮すると、本実施例のように成形することが好まし
い。なお、本実施例では、プロテクタ５の材質としてセ
ラミックを使用したが、耐摩耗性があれば、どのような
ものでもよく、たとえば超硬合金を使用することができ
る。Therefore, in the third embodiment, as shown in FIGS. 8 to 9, the protector 5 is joined to the tip 12 of the tip portion 11 of the chip body 1, and the cap 4 is mounted thereon. The protector 5 is a ceramic disk having a small hole 51 formed in the center thereof. The inner diameter of the small hole 51 is substantially the same as the inner diameter of the welding rod passage hole 6, and the outer diameter of the protector 5 is the chip body 1. The outer diameter of the tip 12 of the tip 11 is substantially the same. In addition,
In this embodiment, the thickness of the protector 5 is 1.5 mm, but the size can be set freely. Further, in the protector 5, if the inner diameter of the small hole 51 is substantially the same as the inner diameter of the welding rod passage hole 6, the outer diameter of the protector 5 can be freely set. Considering that it is joined to the tip 12 of the portion 11 and the cap 4 is attached from above, it is preferable to mold as in this embodiment. In this embodiment, ceramic is used as the material of the protector 5, but any material may be used as long as it has wear resistance, for example, cemented carbide can be used.
【００２３】キャップ４は、前記第１実施例の場合と略
同様であるが、長さがプロテクタ５の厚さ分だけ長くな
っている。なお、チップ本体１の先端部11の先端12にプ
ロテクタ５を接合するだけで、キャップ４は必ずしも必
要ではないが、プロテクタ５のチップ本体１への完全固
定、スパッタの付着防止等の観点からは本実施例のよう
にキャップ４を装着することが好ましい。The cap 4 is substantially the same as that of the first embodiment, but its length is increased by the thickness of the protector 5. It should be noted that the cap 4 is not necessarily required only by joining the protector 5 to the tip 12 of the tip portion 11 of the chip body 1, but from the viewpoint of completely fixing the protector 5 to the chip body 1, preventing adhesion of spatter, and the like. It is preferable to attach the cap 4 as in this embodiment.
【００２４】以上のように、本実施例のプロテクタ５内
蔵のキャップ４付溶接用チップＣを使用すると、前記第
１および第２実施例の効果に加えて、チップ本体１の先
端部11の先端付近がいずれの方向にも摩耗しないため、
縦スリ割り13内に溶接棒が入ることはないので、ロボッ
ト溶接機の溶接用チップとしても有効に使用することが
できる。As described above, by using the welding tip C with the cap 4 having the protector 5 built-in according to this embodiment, in addition to the effects of the first and second embodiments, the tip of the tip portion 11 of the tip body 1 is used. Because the neighborhood does not wear in either direction,
Since the welding rod does not enter the vertical slit 13, it can be effectively used as a welding tip for a robot welding machine.
【００２５】[0025]
【発明の効果】本発明の溶接用チップは、溶接棒用通路
孔の内径が溶接棒の外径と略同一に維持されるため、常
に接触が良好で電流の供給が安定しているので、溶接箇
所の品質の向上を図ることができる。また、溶接棒の先
端が安定しているため、溶接棒を所望の位置に当接する
ことができるので、正確な溶接をすることができるとと
もに、溶接作業の能率向上を図ることができる。In the welding tip of the present invention, since the inner diameter of the welding rod passage hole is kept substantially the same as the outer diameter of the welding rod, the contact is always good and the current supply is stable. It is possible to improve the quality of the welded portion. Further, since the tip of the welding rod is stable, the welding rod can be brought into contact with a desired position, so that accurate welding can be performed and the efficiency of welding work can be improved.
【図１】本発明の第１実施例にかかわる溶接用チップの
斜視図である。FIG. 1 is a perspective view of a welding tip according to a first embodiment of the present invention.
【図２】溶接用チップの平面図である。FIG. 2 is a plan view of a welding tip.
【図３】溶接用チップの正面図である。FIG. 3 is a front view of a welding tip.
【図４】図１におけるIV−IV線断面図である。4 is a sectional view taken along line IV-IV in FIG.
【図５】Ｃ形バネの斜視図である。FIG. 5 is a perspective view of a C-shaped spring.
【図６】本発明の第２実施例にかかわる溶接用チップの
平面図である。FIG. 6 is a plan view of a welding tip according to a second embodiment of the present invention.
【図７】図６におけるVII −VII 線断面図である。7 is a sectional view taken along line VII-VII in FIG.
【図８】本発明の第３実施例にかかわる溶接用チップの
平面図である。FIG. 8 is a plan view of a welding tip according to a third embodiment of the present invention.
【図９】図８におけるIX−IX線断面図である。9 is a sectional view taken along line IX-IX in FIG.
Ａ 溶接用チップ １ チップ本体 ３ バネ ６ 溶接棒用通
路孔 11 先端部 13 縦スリ割り 16 環状溝 21 後端部A Welding tip 1 Tip body 3 Spring 6 Welding rod passage hole 11 Tip 13 Vertical slot 16 Annular groove 21 Rear end
Claims (1)
た溶接用チップであって、先端部および後端部を備えた
チップ本体とバネから構成されており、前記チップ本体
の先端部には、先端から前記溶接棒用通路孔に沿って延
びる縦スリ割りが形成さるとともに、該縦スリ割りが形
成された範囲内において環状溝が形成されており、前記
バネが前記縦スリ割りを締め付けるように前記環状溝に
嵌合されていることを特徴とする溶接用チップ。1. A welding tip having a welding rod passage hole formed in a central portion in an axial direction, the tip including a tip body having a tip portion and a rear end portion, and a spring, the tip of the tip body. The part has a vertical slit extending from the tip along the welding rod passage hole, and an annular groove is formed within the range in which the vertical slit is formed. A welding tip which is fitted in the annular groove so as to tighten.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5269958A JPH08303B2 (en) | 1993-09-30 | 1993-09-30 | Welding tip |
| PCT/JP1995/000245 WO1996026034A1 (en) | 1993-09-30 | 1995-02-20 | Welding tip |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5269958A JPH08303B2 (en) | 1993-09-30 | 1993-09-30 | Welding tip |
| PCT/JP1995/000245 WO1996026034A1 (en) | 1993-09-30 | 1995-02-20 | Welding tip |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07100653A true JPH07100653A (en) | 1995-04-18 |
| JPH08303B2 JPH08303B2 (en) | 1996-01-10 |
Family
ID=17479592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5269958A Expired - Lifetime JPH08303B2 (en) | 1993-09-30 | 1993-09-30 | Welding tip |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08303B2 (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996026034A1 (en) * | 1993-09-30 | 1996-08-29 | Nagamine Manufacturing Co., Ltd. | Welding tip |
| EP1266714A1 (en) * | 2001-06-14 | 2002-12-18 | Daido Tokushuko Kabushiki Kaisha | Welding tip for arc welding and arc welding apparatus |
| JP2005281771A (en) * | 2004-03-30 | 2005-10-13 | Daihen Corp | Contact tip for thermal spraying |
| US8106327B2 (en) | 2004-08-24 | 2012-01-31 | Saipem S.P.A. | ARC welding torch including a wire guide open on one side and arranged to receive a welding wire from a laterally spaced apart location and method of using same |
| JP2013169597A (en) * | 2012-02-23 | 2013-09-02 | Daihen Corp | Power feeding chip and consumable electrode gas shielded arc welding torch |
| CN104114313A (en) * | 2011-12-20 | 2014-10-22 | 依赛彼公司 | Contact tip for use in gas metal-arc welding |
| CN106425054A (en) * | 2016-11-30 | 2017-02-22 | 上海永言特种材料研究所 | Conductive nozzle and preparation method thereof |
| CN109317790A (en) * | 2017-08-01 | 2019-02-12 | 株式会社达谊恒 | Power supply tip and welding torch |
| KR102032479B1 (en) * | 2018-06-20 | 2019-10-15 | (주)큐엠앤이 이노베이션 | Contact tip and welding apparatus having the same |
| WO2021249413A1 (en) * | 2020-06-13 | 2021-12-16 | 何强 | Easily-adjustable durable contact tip for welding, and method therefor |
| PL442934A1 (en) * | 2022-11-24 | 2024-05-27 | Wiktor Straszak | Contact tip for gas welding |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59180860U (en) * | 1983-05-18 | 1984-12-03 | 三菱重工業株式会社 | Power supply chip for welding wire |
-
1993
- 1993-09-30 JP JP5269958A patent/JPH08303B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59180860U (en) * | 1983-05-18 | 1984-12-03 | 三菱重工業株式会社 | Power supply chip for welding wire |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996026034A1 (en) * | 1993-09-30 | 1996-08-29 | Nagamine Manufacturing Co., Ltd. | Welding tip |
| EP1266714A1 (en) * | 2001-06-14 | 2002-12-18 | Daido Tokushuko Kabushiki Kaisha | Welding tip for arc welding and arc welding apparatus |
| CN100415430C (en) * | 2001-06-14 | 2008-09-03 | 大同特殊钢株式会社 | Electric arc welding nozzle and electric arc welder |
| JP2005281771A (en) * | 2004-03-30 | 2005-10-13 | Daihen Corp | Contact tip for thermal spraying |
| JP4504062B2 (en) * | 2004-03-30 | 2010-07-14 | 株式会社ダイヘン | Thermal spray contact tips |
| US8106327B2 (en) | 2004-08-24 | 2012-01-31 | Saipem S.P.A. | ARC welding torch including a wire guide open on one side and arranged to receive a welding wire from a laterally spaced apart location and method of using same |
| US20150014282A1 (en) * | 2011-12-20 | 2015-01-15 | Esab Ab | Contact tip for use in gas metal-arc welding |
| CN104114313A (en) * | 2011-12-20 | 2014-10-22 | 依赛彼公司 | Contact tip for use in gas metal-arc welding |
| EP2794172A4 (en) * | 2011-12-20 | 2016-04-06 | Esab Ab | Contact tip for use in gas metal-arc welding |
| US10201872B2 (en) | 2011-12-20 | 2019-02-12 | Esab Ab | Contact tip for use in gas metal-arc welding |
| JP2013169597A (en) * | 2012-02-23 | 2013-09-02 | Daihen Corp | Power feeding chip and consumable electrode gas shielded arc welding torch |
| CN106425054A (en) * | 2016-11-30 | 2017-02-22 | 上海永言特种材料研究所 | Conductive nozzle and preparation method thereof |
| CN109317790A (en) * | 2017-08-01 | 2019-02-12 | 株式会社达谊恒 | Power supply tip and welding torch |
| KR102032479B1 (en) * | 2018-06-20 | 2019-10-15 | (주)큐엠앤이 이노베이션 | Contact tip and welding apparatus having the same |
| WO2021249413A1 (en) * | 2020-06-13 | 2021-12-16 | 何强 | Easily-adjustable durable contact tip for welding, and method therefor |
| PL442934A1 (en) * | 2022-11-24 | 2024-05-27 | Wiktor Straszak | Contact tip for gas welding |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08303B2 (en) | 1996-01-10 |
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