JPH08303B2 - Welding tip - Google Patents
Welding tipInfo
- Publication number
- JPH08303B2 JPH08303B2 JP5269958A JP26995893A JPH08303B2 JP H08303 B2 JPH08303 B2 JP H08303B2 JP 5269958 A JP5269958 A JP 5269958A JP 26995893 A JP26995893 A JP 26995893A JP H08303 B2 JPH08303 B2 JP H08303B2
- Authority
- JP
- Japan
- Prior art keywords
- tip
- welding
- welding rod
- passage hole
- spring
- 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 - Lifetime
Links
- 238000003466 welding Methods 0.000 title claims description 109
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 241000282693 Cercopithecidae Species 0.000 claims 1
- 230000001012 protector Effects 0.000 description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 239000000463 material Substances 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 4
- 229910001285 shape-memory alloy Inorganic materials 0.000 description 3
- PYVHTIWHNXTVPF-UHFFFAOYSA-N F.F.F.F.C=C Chemical compound F.F.F.F.C=C PYVHTIWHNXTVPF-UHFFFAOYSA-N 0.000 description 2
- 229910000639 Spring steel Inorganic materials 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 230000003405 preventing effect Effects 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000010407 anodic oxide Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000004021 metal welding Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
Landscapes
- Arc Welding In General (AREA)
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、溶接棒を所望の位置に位置させることが困難とな
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 Rukoto is positioned in the desired position it is difficult, when moving the welding rod into an elliptical shape by welding robot or the like, in particular, there is a risk that the quality of the weld is reduced.
【０００４】本発明は、かかる事情に鑑み、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 the above situation, the present invention provides good contact between the welding rod and the welding rod passage hole even if the welding rod passage hole 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 rod and performing 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、チップ本体の中心部に溶接棒用通路孔が軸方向に形
成された溶接用チップであって、先端部および後端部を
有する前記チップ本体と締め付け用のバネから構成され
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チップ
本体の外周に環状溝が形成されており、前記バネが前紀
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
おり、前記先端部を覆う金属製のキャップが該先端部に
装着されていることを特徴とする。A welding tip of the present invention is a welding tip having a welding rod passage hole formed axially in a central portion of a tip body. Rear end
The tip main body is provided with a tightening spring, and at the tip of the tip main body, a vertical slit extending from the tip along the welding rod passage hole is formed, and the vertical slit is formed. An annular groove is formed on the outer periphery of the chip body within the range defined by the above, and the spring is fitted into the annular groove so as to tighten the longitudinal slit.
And a metal cap that covers the tip is attached to the tip.
It is characterized by being installed .
【０００６】[0006]
【作用】本発明の溶接用チップでは、チップ本体の先端
部の環状溝には締め付け用のバネが嵌合されているた
め、縦スリ割りが締め付けられ、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。また、
キャップ４は溶接作業時にスパッタが飛散してもキャッ
プ４の表面に付 着するだけで、チップ本体の先端の溶接
棒用通路孔の周囲に付着せず、溶接棒をスムーズに送り
出すことができる。 [Action] In the welding tip of the present invention, since the can is fitted springs for fastening to the annular groove of the tip portion of the chip body, a vertical slit is tightened, welding through the welding rod passage hole Since the rod is always clamped, 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. Also,
The cap 4 is capped even if spatter is scattered during welding work.
Just stick to a surface of the flop 4, the welding of the chip body tip of
The welding rod is fed smoothly without sticking around the rod passage hole.
Can be issued.
【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。図１は本発明の一実施例である溶接用チップのキ
ャップを除いた状態の斜視図である。符号Ａはキャップ
を装着しない状態の溶接用チップを示し、これはチップ
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
を備えており、チップ本体１の中心部には溶接棒用通路
孔６が軸方向に形成されている。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１
７を形成している。Embodiments of the present invention will now be described with reference to the drawings. FIG. 1 shows a key of a welding tip which is an embodiment of the present invention.
It is a perspective view of the state which removed the cap . Reference A is a cap
1 shows a welding tip in a state where is not attached , which is composed of a tip body 1 and a spring 3. The chip body 1 is
As shown in FIGS. 1 and 3, a front end portion 11 and a rear end portion 21 are provided.
Has a welding rod passage hole 6 in the eccentric part in the tip body 1 is formed in the axial direction. Then, the tip of the welding rod passage hole 6 is formed in the center of the tip 12 of the tip portion 11 by the small hole 1
7 are 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 long 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-shaped member. There is. That is, the vertical slit 13 is shown in FIGS.
As shown in FIG. 3, the frusto-conical member is formed so as to be divided into two in the diametrical direction between the tip 12 of the frusto-conical member and the vicinity of the bottom surface. In the present 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 is, as shown in FIGS. 1 and 3, on both sides of the vertical slit 13 slightly above the terminal end of the vertical slit 13, and at right angles to the vertical slit 13 as shown in FIG. It is a semi-disc shaped notch formed in. In the present embodiment, the width y of the lateral slit 14 is set to 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 its position can be set freely. However, considering that the horizontal slit 14 is formed in order to make it easier to tighten the vertical slit 13 with a spring which will be 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. The horizontal slit 14 is not always necessary, but it is preferable to form it as in the present 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１
６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１
６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.
Although the annular groove 16 is formed in the vicinity of the tip of the tip portion 11 of the chip body 1 in this embodiment, the formation position of the annular groove 16 can be freely set within the range in which the vertical slit 13 is formed. . However, as will be described later, the annular groove 1
Considering that a spring for tightening the vertical slit 13 is fitted in 6, the tip portion 11 of the chip body 1 as in the present embodiment is required to effectively tighten the vertical slit 13. It is preferable to form the annular groove 16 near the tip of the. When the horizontal slit 14 is formed slightly above the end of the vertical slit 13 as in the present embodiment, the annular groove 1 is formed above the position where the horizontal slit 14 is formed.
6 may be formed. 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】締め付け用のバネ３は、図５に示すような
Ｃ形板バネなどでの締め付け力が発揮しやすい形状のバ
ネであり、バネ鋼を材質としている。そして、このバネ
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の
で、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。The tightening spring 3 is a spring having a shape such that a C-shaped leaf spring as shown in FIG. 5 can easily exert a tightening force, and is made of spring steel. As shown in FIGS. 1 and 3, the spring 3 is fitted in the annular groove 16 and serves to tighten the vertical slit 13. Therefore, the inner diameter of the spring 3 is formed to be slightly smaller than the outer diameter of the annular groove 16. And is fitted into the annular groove 16. That is,
In this embodiment, the inner diameter of the spring 3 is 2.5 mm with respect to the outer diameter of the annular groove 16 of 3 mm, but the size can be set freely. Further, the thickness of the spring 3 can be freely set 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
るもの等も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 in the annular groove 16 and tighten the vertical slit 13. A material made of a memory alloy or the like can also be used. When the shape memory alloy is used as the material, the spring 3 is used at an ambient temperature of about 500 ° C.
Is formed so that the inner diameter thereof is slightly smaller than the outer diameter of the annular groove 16, and is fitted into the annular groove 16 at room temperature. The thickness of the spring 3 may be the same as that of the leaf spring.
【００１３】つぎに、上記溶接用チップの作用について
説明する。溶接用チップの環状溝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。[0013] Next, a description will be given of the operation of the chip for welding. The annular groove 16 of the welding tip has an annular groove 16
Since the C-shaped leaf spring 3 having an inner diameter slightly smaller than the outer diameter of the tip body 1 is fitted to the tip body 1 through the welding rod passage hole 6.
The welding rod (not shown) protruding from the small hole 17 formed at the tip 12 of the tip portion 11 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:
It is clamped by the memory shape alloy spring 3 within the range where the vertical slit 13 is formed during welding.
【００１５】以上のように、本実施例の溶接用チップを
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。[0015] As described above, by using the welding chip of the present embodiment, the welding rod is within the range of the vertical slit 13 is formed is clamped by the vertical slit 13 welding rod passage hole 6 Therefore, even if the inner diameter of the welding rod passage hole 6 increases due to wear, the inner diameter can be maintained 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. Further, since the tip of the welding rod protruding from the small hole 17 of the tip 12 of the tip portion 11 of the tip body 1 is stable, the tip of the welding rod can be brought into contact with a desired position, so that accurate welding is performed. In addition, the efficiency of welding work can be improved.
【００１６】本実施例の溶接チップは、さらにキャップ
４を備えている。以下、キャップ４を備えた溶接チップ
を符号Ｂで表示する。 図１〜３に示すようにチップ本体
１が露出した状態のままであると、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、チップ本体１が露出した溶接用チップ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の先端１
２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。 The welding tip of this embodiment further includes a cap.
It is equipped with 4. Below, a welding tip with a cap 4
Is indicated by symbol B. As shown in FIGS. 1 to 3, when the chip body 1 is left exposed , the chip body 1 is usually made of metal, which causes the following problems. That is, when the tip body 1 is carried out gas arc welding operation using the welding tip A exposed, spatter scatter during welding fusing, the tip 1 of a portion of chip for metal welding
There is a possibility that the welding rod may not be smoothly delivered from the small hole 17 of the tip 12 of the tip body 1 due to the adhesion and welding around the second small hole 17, and the efficiency of welding work may be reduced.
【００１７】そこで、本発明では、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を装着して
いる。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、鉄板等の金属により形成さ
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。[0017] Therefore, in the present invention, as shown in FIG. 6-7, by mounting the cap 4 on the tip portion 11 of the chip body 1
I have. The cap 4 is a truncated cone-shaped cylindrical body similar to the tip portion 11 of the chip body 1, and is made of metal such as an iron plate. The tip end 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 an inwardly bent locking piece 43. Has been done. The shape of the inner surface of the cap 4 is substantially the same as the shape of the outer surface of the tip portion 11 of the chip body 1 when the annular groove 16 and the lateral slits 14 are not formed.
【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１
１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 reliably mounted on the tip portion 11. . And the tip portion 1 of the chip body 1
When the welding tip B in which the cap 4 is covered with 1 is used,
Even if spatter is scattered and adheres to the periphery of the small hole 42 of the lid 41 of the cap 4, it can be easily removed.
【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、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。[0020] As described above, by using the cap 4 with welding tip B of the present embodiment, or sputtering around hardly adhere the small holes 42 of the lid 41 of the caps 4, easily be attached Since it can be removed, the efficiency of the welding work can be further improved.
【００２１】つぎに、本発明の他の実施例を説明する。
前記実施例では、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。 Next, another embodiment of the present invention will be described.
In the previous you facilities example, a vertical slit 13 formed in the distal end portion 11 of the tip body 1, tightening the vertical slit 13 by the spring 3 fitted into the annular groove 16, the inner diameter of the welding rod passage hole 6 Although the outer diameters of the welding rod and the welding rod can be kept substantially the same, there were the following problems when they were used in a robot welding machine. That is, since the robot welding machine performs welding while rotating the welding rod, the vicinity of the tip of the tip portion 11 of the tip body 1 is worn in the diametrical direction in which the vertical slit 13 is formed, 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。この
実施例の溶接用チップを符号Ｃで示す。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１
１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。[0022] Therefore, in the present real施例, as shown in FIG. 8-9, bonding the protector 5 to the tip 12 of the chip body 1 of the distal end portion 11, fitted with a cap 4 from above. this
The welding tip of the embodiment is indicated by reference numeral C. Protector 5
Is a disk made of ceramics having a small hole 51 formed in the center, 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 tip of the tip body 1. Part 1
The outer diameter of the tip 12 is substantially the same. In addition,
Although the thickness of the protector 5 is set to 1.5 mm in this embodiment, its 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。[0023] Cap 4 is substantially the same as in the previous you施例, is longer by the thickness of the protector 5 length. 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 spatter from adhering, 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１
３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。[0024] As described above, by using the chips C cap with 4 welding of the protector 5 built in the present embodiment, in addition to the effect of prior you <br/>施例, the chip body 1 of the distal end portion 11 Vertical slitting 1 because the vicinity of the tip does not wear in either direction
Since the welding rod does not enter the inside of 3, it can be effectively used as a welding tip of 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、溶接棒の送
り出しがスムーズに行え、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. In addition, feeding of welding rod
Since the protrusion can be performed smoothly and the tip 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】本発明の一実施例であってキャップを装着して
いない状態の溶接用チップの斜視図である。[1] is one embodiment of the present invention by mounting the cap
It is a perspective view of the tip for welding in the state where it is not.
【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】本発明の一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 an 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】本発明の他の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 another 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 ４ キャップ 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 4 Cap 6 Welding rod passage hole 11 Tip 13 Vertical slot 16 Annular groove 21 Rear end
Claims (1)
方向に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有する前記チップ本体と締め付け
用の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チップ本体の外
周に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おり、前
記先端部を覆う金属製のキャップが該先端部に装着され
ていることを特徴とする溶接用チップ。1. A chip welding rod passage hole in the center of the body axis
A welding tip formed in a direction , which is tightened with the tip body having a front end and a rear end.
Is composed of a spring use, the distal end of the tip body, a chip with a vertical slit is formed monkey extending along said welding rod passage hole from the tip, to the extent that said longitudinal slit is formed Outside the body
An annular groove is formed on the circumference, and the spring is fitted in the annular groove so as to tighten the vertical slit ,
A metal cap that covers the tip is attached to the tip.
Welding tip, wherein a is.
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 JPH07100653A (en) | 1995-04-18 |
| JPH08303B2 true 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) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996026034A1 (en) * | 1993-09-30 | 1996-08-29 | Nagamine Manufacturing Co., Ltd. | Welding tip |
| US6943318B2 (en) * | 2001-06-14 | 2005-09-13 | Daido Tokushuko Kabushiki Kaisha | Welding tip for arc welding and arc welding apparatus |
| JP4504062B2 (en) * | 2004-03-30 | 2010-07-14 | 株式会社ダイヘン | Thermal spray contact tips |
| GB0418899D0 (en) | 2004-08-24 | 2004-09-29 | Saipem Spa | Welding torch |
| AU2011383784B2 (en) * | 2011-12-20 | 2014-10-09 | Esab Ab | Contact tip for use in gas metal-arc welding |
| JP5985202B2 (en) * | 2012-02-23 | 2016-09-06 | 株式会社ダイヘン | Power supply tip and consumable electrode gas shield arc welding torch |
| CN106425054B (en) * | 2016-11-30 | 2019-05-17 | 上海永言特种材料研究所 | A kind of ignition tip |
| JP2019025530A (en) * | 2017-08-01 | 2019-02-21 | 株式会社ダイヘン | Power feeding chip and welding torch |
| KR102032479B1 (en) * | 2018-06-20 | 2019-10-15 | (주)큐엠앤이 이노베이션 | Contact tip and welding apparatus having the same |
| CN114406421A (en) * | 2020-06-13 | 2022-04-29 | 何强 | Easily-adjustable durable welding contact nozzle and method |
| PL442934A1 (en) * | 2022-11-24 | 2024-05-27 | Wiktor Straszak | Contact tip for gas welding |
Family Cites Families (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
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07100653A (en) | 1995-04-18 |
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