JP2506882B2 - Contact tip for welding - Google Patents
Contact tip for weldingInfo
- Publication number
- JP2506882B2 JP2506882B2 JP63005868A JP586888A JP2506882B2 JP 2506882 B2 JP2506882 B2 JP 2506882B2 JP 63005868 A JP63005868 A JP 63005868A JP 586888 A JP586888 A JP 586888A JP 2506882 B2 JP2506882 B2 JP 2506882B2
- Authority
- JP
- Japan
- Prior art keywords
- contact tip
- welding
- wire
- core
- copper
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
- B23K35/0255—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in welding
- B23K35/0261—Rods, electrodes, wires
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、消耗電極式アーク溶接用トーチに使用する
溶接用コンタクトチップに関するものである。TECHNICAL FIELD The present invention relates to a contact tip for welding used in a consumable electrode type arc welding torch.
従来の技術 第２図に従来の溶接用コンタクトチップ（以下単にチ
ップという）の例を示す。チップ５は、消耗電極（以下
単にワイヤという）をその中心部に設けたワイヤ通孔３
を経て溶接部に供給するガイドの役目と、溶接電流をワ
イヤへ供給する給電の役目を果たしている。2. Description of the Related Art FIG. 2 shows an example of a conventional welding contact tip (hereinafter simply referred to as a tip). The tip 5 has a wire through hole 3 in which a consumable electrode (hereinafter, simply referred to as a wire) is provided in the center thereof.
It plays the role of a guide for supplying the welding current to the welded part and the function of supplying the welding current to the wire.
チップ５は、ワイヤに対して接触給電を行っており、
給電時には、ワイヤの接触部分が高温になり、ワイヤの
送給によってワイヤ通孔３が著しく摩耗し、摩耗状態に
よっては、ワイヤのガイドやワイヤへの給電の役目を果
たし得なくなる。The chip 5 supplies contact power to the wire,
At the time of power feeding, the contact portion of the wire becomes high in temperature, and the wire feeding hole 3 is significantly worn due to the feeding of the wire, and depending on the worn state, it cannot serve as a guide for the wire or a power feeding to the wire.
そのため、従来のチップは高温での耐摩耗性に優れた
クロム銅により全体が構成されていた。Therefore, the conventional chip is entirely composed of chromium copper, which has excellent wear resistance at high temperatures.
発明が解決しようとする課題 しかし、このような従来のチップでは、全体を高価な
クロム銅で構成しているため、材料コストが非常に高
く、また加工上でも多少の課題があった。However, in such a conventional chip, since the whole is made of expensive chrome copper, the material cost is very high and there are some problems in processing.
課題を解決するための手段 上記課題を解決する本発明の技術的な手段は、機能上
からチップを中子部とチップ本体部２の２部分に分割
し、中子部をコイル状としたものである。Means for Solving the Problems The technical means of the present invention for solving the above problems is to divide the chip into two parts, that is, a core part and a chip body part 2 from the viewpoint of function, and form the core part into a coil shape. Is.
作 用 この技術的手段による作用は次のようになる。Operation The effects of this technical means are as follows.
中子部をコイル状にすることによってドリル等による
穴開け加工が不要となるため、ドリルの破損等によるメ
ンテナンスが省かれ作業能率が向上する。By making the core part into a coil shape, there is no need for drilling or the like, so maintenance due to breakage of the drill is omitted and work efficiency is improved.
また、ワイヤのガイド及び溶接電流の給電点となって
いるワイヤ通孔部の最小限の部分（中子部）を、堅固で
耐熱耐摩耗性に優れている硬質の導電性金属とし、チッ
プ本体部を安価な銅，黄銅，アルミニウムあるいは、ア
ルミニウム合金で構成することによって、チップの大部
分がチップ本体部で構成されているため、チップ全体の
材料コストを大幅に削減することができる。In addition, the minimum part (core part) of the wire guide hole and the wire feeding hole that is the feeding point of the welding current is made of a hard conductive metal that is solid and has excellent heat resistance and abrasion resistance. Since the part is made of inexpensive copper, brass, aluminum, or aluminum alloy, most of the chip is made up of the chip body, so that the material cost of the entire chip can be significantly reduced.
実施例 第１図は、本発明による一実施例である。第１図
（ａ）においては、１は中子部、２はチップ本体部を示
す。中子部１はコイル状に巻かれており、コイルの線径
は、0.1mm〜2mmが効果的で、0.5mm〜1.2mmが最も実用的
である。0.1mm以下では、中子部１の効果は著しく弱ま
り、2mmを越えるとコイル加工が困難で、コストメリッ
トが少なくなる。巻ピッチは、線径比１（密着巻）〜２
倍（疎巻）が有効である。２倍を越えると、コイルの固
定が不安定となり、ワイヤ４への給電が安定せず、溶接
電流の安定性が悪くなる。このとき、特に摩耗の著しい
チップ先端部を密着巻にして後部を疎巻にしてもよい。Embodiment FIG. 1 shows an embodiment according to the present invention. In FIG. 1 (a), 1 is a core portion and 2 is a chip body portion. The core part 1 is wound in a coil shape, and the wire diameter of the coil is effectively 0.1 mm to 2 mm, and 0.5 mm to 1.2 mm is most practical. If it is less than 0.1 mm, the effect of the core portion 1 is significantly weakened, and if it exceeds 2 mm, coil processing is difficult and cost merit is reduced. The winding pitch is a wire diameter ratio of 1 (contact winding) to 2
Double (sparse winding) is effective. If it exceeds 2 times, the fixation of the coil becomes unstable, the power supply to the wire 4 becomes unstable, and the stability of the welding current becomes poor. At this time, the tip end portion, which is particularly worn, may be closely wound and the rear portion may be loosely wound.
本実施例では、中子部１とチップ本体部２の接合方法
として、チップ本体部２に中子部１を挿入し、中子部１
の中にワイヤ４への溶接電流を給電するための内径に相
当する外径を有する硬線を挿入し、チップ本体部外周か
ら円錐状成形部を有するダイスで、チップ素材に衝撃加
圧を与えながらチップ素材の伸展加圧を行ってワイヤ通
孔３に溶接電流を給電するための内径の穴を形成させる
加工（以下スウェージング加工という）によって圧接す
る機械的接合手段を用いている。また、接合方法とし
て、他の機械的接合（コイルのネジ込み、かしめ等）、
化学的接合、及び金属的接合のいずれによることもでき
る。第１図（ｂ）に、スウェージング加工後の断面図を
示す。In this embodiment, as a method of joining the core portion 1 and the chip body portion 2, the core portion 1 is inserted into the chip body portion 2 and the core portion 1
Insert a hard wire having an outer diameter corresponding to the inner diameter for supplying a welding current to the wire 4, and apply impact pressure to the tip material with a die having a conical shaped portion from the outer periphery of the tip body. Meanwhile, a mechanical joining means is used in which the tip material is stretched and pressed to form a hole having an inner diameter for supplying a welding current to the wire through hole 3 (hereinafter referred to as swaging). Also, as a joining method, other mechanical joining (screw-in of coil, caulking, etc.),
Both chemical bonding and metallic bonding can be used. FIG. 1 (b) shows a sectional view after swaging.
このとき、コイル（中子）の長さは、第１図（ｂ）の
ようにチップ先端の一部（実施例では20mm）、または第
１図（ｃ）のようにチップ全長としてもよい。At this time, the length of the coil (core) may be a part of the tip of the chip (20 mm in the embodiment) as shown in FIG. 1 (b) or the entire length of the chip as shown in FIG. 1 (c).
スウェージング加工による圧接の場合、第１図（ｂ）
のようにチップ本体部２とコイル（中子部１）の各ピッ
チ間の隙間に、チップ本体部２がスウェージング加工の
際に埋め込まれるため、中子部１が圧接固定され、ワイ
ヤ送給の際、中子部１が軸方向に移動することなく（押
し出されることなく）、また大電流においても圧接部で
の発熱は殆んど認められない。In case of pressure welding by swaging, Fig. 1 (b)
As described above, since the chip body 2 is embedded in the gap between the pitches of the chip body 2 and the coil (core portion 1) during the swaging process, the core portion 1 is fixed by pressure contact and wire feeding. At this time, the core portion 1 does not move in the axial direction (without being pushed out), and even at a large current, almost no heat generation is observed at the pressure contact portion.
また、中子部とチップ本体部２の機械的結合を増すた
めに、チップ本体部２の先端を内側に曲げた構造あるい
は、チップ本体部２の内面側、中子部１の外面側のいず
れか一方あるいは、両方に不均質部（凹凸部、ローレッ
ト加工部等）を設けてもよい。Further, in order to increase the mechanical coupling between the core portion and the chip body portion 2, either the structure in which the tip of the chip body portion 2 is bent inward, the inner surface side of the chip body portion 2 or the outer surface side of the core portion 1 is used. One or both of them may be provided with a heterogeneous portion (uneven portion, knurled portion, etc.).
チップ５において、ワイヤ４のガイド部及びワイヤ４
への溶接電流の給電点となっている部分は、ワイヤ通孔
３の内壁薄層部分であるため、この重要な薄層部分を中
子部１とし、これを硬質の導電性金属で、残りの部分
（チップ本体部２）を、銅，黄銅，アルミニウムあるい
は、アルミニウム合金で構成することによって、チップ
の寿命は従来品とほぼ同等で、なおかつ加工がし易く、
安価なチップを市場に供給することができる。In the chip 5, the guide portion of the wire 4 and the wire 4
Since the portion serving as the feeding point of the welding current to the inner wall is a thin layer portion of the inner wall of the wire through hole 3, this important thin layer portion is used as the core portion 1, and the core portion 1 is made of hard conductive metal. By making the part (chip body 2) of copper, brass, aluminum or aluminum alloy, the life of the chip is almost the same as that of the conventional product, and it is easy to process.
Inexpensive chips can be supplied to the market.
発明の効果 以上のように本発明によれば以下の効果が奏せられ
る。EFFECTS OF THE INVENTION As described above, the present invention has the following effects.
（１） 中子部をコイル状にすることによって、クロム
銅等のドリルによる穴加工工程が省かれる。それによっ
て、ドリルの破損等によるメンテナンスが省かれ作業能
率が向上する。(1) By forming the core portion into a coil shape, a drilling process using a drill such as chrome copper is omitted. This saves maintenance due to breakage of the drill and improves work efficiency.
（２） 中子部をコイル状にすることにより、コイルの
各ピッチ間の隙間に、チップ本体部が埋め込まれるの
で、中子部と本体部の軸方向の接合強度が強く、ワイヤ
を送給したり、溶接作業中に中子部が、軸方向に移動
（押し出される）することがない。(2) By making the core part into a coil shape, the chip body is embedded in the gap between the pitches of the coil, so the axial strength between the core part and the body is strong, and the wire is fed. And the core part does not move (extrude) in the axial direction during welding work.
（３） チップを中子部（硬質の導電性金属）とチップ
本体部（銅、黄銅、アルミニウムあるいは、アルミニウ
ムの合金）で構成することによって、従来と同等の性
能、寿命で、材料コストが安価となる。(3) By configuring the chip with the core part (hard conductive metal) and the chip body part (copper, brass, aluminum, or aluminum alloy), the performance and life are the same as the conventional one, and the material cost is low. Becomes
（４） チップ本体部が、銅、アルミニウム等であるた
め、チップ外形加工等の作業能率が向上できる。また、
切削バイト、転造ローラ等加工工具の寿命が長くなる。(4) Since the chip body is made of copper, aluminum, or the like, work efficiency such as chip outer shape processing can be improved. Also,
The service life of cutting tools such as cutting tools and rolling rollers is extended.
第１図は本発明の一実施例を示すチップの断面図、第２
図は従来のチップの断面図である。 １……中子部、２……チップ本体部、３……ワイヤ通
孔、４……ワイヤ、５……コンタクトチップ。FIG. 1 is a sectional view of a chip showing an embodiment of the present invention, FIG.
The figure is a cross-sectional view of a conventional chip. 1 ... Core part, 2 ... Chip body part, 3 ... Wire through hole, 4 ... Wire, 5 ... Contact chip.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 坂野 与志勝 大阪府門真市大字門真1006番地 松下電 器産業株式会社内 (72)発明者 山田 幸敏 大阪府門真市大字門真1006番地 松下電 器産業株式会社内 (72)発明者 半田 克巳 大阪府門真市大字門真1006番地 松下電 器産業株式会社内 (56)参考文献 特開 平１−181979（ＪＰ，Ａ) 実開 昭48−171418（ＪＰ，Ｕ) 実開 昭61−122077（ＪＰ，Ｕ) 実公 昭51−29317（ＪＰ，Ｙ１) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yokatsu Sakano 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (72) Yukitoshi Yamada 1006 Kadoma, Kadoma City, Osaka Matsushita Electric Sangyo Co., Ltd. (72) Inventor Katsumi Handa 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (56) Reference JP-A-1-181979 (JP, A) , U) Actual development Sho 61-122077 (JP, U) Actual public Sho 51-29317 (JP, Y1)
Claims (4)
ンタクトチップにおいて、消耗電極と接触する中子部
と、残部のコンタクトチップ本体部の２部分で構成し、
中子部をコイル状としたことを特徴とする溶接用コンタ
クトチップ。1. A welding contact tip having a through hole for a consumable electrode in a central portion, which comprises a core portion that contacts the consumable electrode and a remaining contact tip body portion.
A contact tip for welding, characterized in that the core portion has a coil shape.
の導電性金属としたことを特徴とする特許請求の範囲第
１項記載の溶接用コンタクトチップ。2. The welding contact tip according to claim 1, wherein the core portion is made of a conductive metal that is harder than the contact tip body portion.
有率0.1％〜５％）とし、コンタクトチップ本体部を銅
（銅含有率99％以上）、黄銅（亜鉛含有率25％〜45
％）、アルミニウムあるいはアルミニウム合金により構
成したことを特徴とする特許請求の範囲第２項記載の溶
接用コンタクトチップ。3. The conductive metal of the core part is chromium copper (chromium content 0.1% to 5%), and the contact chip body is copper (copper content 99% or more), brass (zinc content 25% to). 45
%), Aluminum or an aluminum alloy, The contact tip for welding according to claim 2, characterized in that it is made of aluminum or an aluminum alloy.
率0.005％〜３％）とし、コンタクトチップ本体部を銅
（銅含有率99％以上）、黄銅（亜鉛含有率25％〜45
％）、アルミニウムあるいはアルミニウム合金により構
成したことを特徴とする特許請求の範囲第２項記載の溶
接用コンタクトチップ。4. The conductive metal of the core is phosphor bronze (phosphorus content 0.005% to 3%), and the contact tip body is copper (copper content 99% or more), brass (zinc content 25% to). 45
%), Aluminum or an aluminum alloy, The contact tip for welding according to claim 2, characterized in that it is made of aluminum or an aluminum alloy.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63005868A JP2506882B2 (en) | 1988-01-14 | 1988-01-14 | Contact tip for welding |
| US07/275,518 US4937428A (en) | 1988-01-14 | 1988-11-23 | Consumable electrode type arc welding contact tip |
| DE3887676T DE3887676T2 (en) | 1988-01-14 | 1988-11-25 | Contact end for arc welding of the consumable electrode type. |
| EP88119706A EP0324088B1 (en) | 1988-01-14 | 1988-11-25 | Consumable electrode type arc welding contact tip |
| CN 88108800 CN1035790A (en) | 1988-01-14 | 1988-12-24 | Touching welding holder of argon-arc welding of self-consuming electrode type |
| KR1019890000265A KR890011668A (en) | 1988-01-14 | 1989-01-12 | Contact tip for arc welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63005868A JP2506882B2 (en) | 1988-01-14 | 1988-01-14 | Contact tip for welding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01181980A JPH01181980A (en) | 1989-07-19 |
| JP2506882B2 true JP2506882B2 (en) | 1996-06-12 |
Family
ID=11622922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63005868A Expired - Lifetime JP2506882B2 (en) | 1988-01-14 | 1988-01-14 | Contact tip for welding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2506882B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01181979A (en) * | 1988-01-14 | 1989-07-19 | Matsushita Electric Ind Co Ltd | Consumable electrode type contact chip for arc welding |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4817418U (en) * | 1971-07-14 | 1973-02-27 | ||
| JPS5129317U (en) * | 1974-08-27 | 1976-03-03 | ||
| JPS61122077U (en) * | 1985-01-17 | 1986-08-01 | ||
| JPS6216977U (en) * | 1985-07-17 | 1987-01-31 | ||
| JPH01181979A (en) * | 1988-01-14 | 1989-07-19 | Matsushita Electric Ind Co Ltd | Consumable electrode type contact chip for arc welding |
-
1988
- 1988-01-14 JP JP63005868A patent/JP2506882B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01181980A (en) | 1989-07-19 |
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