JP2555631B2 - Arc welding torch spatter removal device - Google Patents
Arc welding torch spatter removal deviceInfo
- Publication number
- JP2555631B2 JP2555631B2 JP62236784A JP23678487A JP2555631B2 JP 2555631 B2 JP2555631 B2 JP 2555631B2 JP 62236784 A JP62236784 A JP 62236784A JP 23678487 A JP23678487 A JP 23678487A JP 2555631 B2 JP2555631 B2 JP 2555631B2
- Authority
- JP
- Japan
- Prior art keywords
- coil
- spatter
- nozzle
- sub
- arc welding
- 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
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
- B23K9/328—Cleaning of weld torches, i.e. removing weld-spatter; Preventing weld-spatter, e.g. applying anti-adhesives
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (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、アーク溶接時に飛散してノズルや給電チッ
プの先端部に付着する、スパッタを除去するためのアー
ク溶接トーチのスパッタ除去装置の改良に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention is an improvement of a spatter removing device for an arc welding torch for removing spatter that scatters during arc welding and adheres to the tip of a nozzle or a power feed tip. Regarding
（従来の技術） アーク溶接時には、溶融部からスパッタ（溶融金属の
粒子）が飛散し、溶接トーチのノズルや給電チップの先
端部に付着する。この状態のまま溶接作業を継続する
と、スパッタが堆積してシールドガスの出口を塞ぐの
で、前記溶接作業に支障を来す。(Prior Art) During arc welding, spatter (molten metal particles) is scattered from the molten portion and adheres to the nozzle of the welding torch or the tip of the power feed tip. If the welding operation is continued in this state, spatters accumulate and block the outlet of the shield gas, which hinders the welding operation.
そこで、従来、ノズルの先端部付近にコイルを設け、
このコイルに瞬間的な大電流を流すことによって電磁力
を発生させ、この電磁力によりスパッタをノズルや給電
チップの先端部から除去させること（特願昭60−295454
号公報参照）、あるいはコイルを二重構造にして同心円
状に設け、両コイルに電流を互いに異なる方向に、かつ
同時に供給することにより、溶接トーチの要所に電磁力
を発生させて、スパッタをノズルや給電チップの先端部
から除去すること（特願昭62−146108号公報参照）が提
案されている。Therefore, conventionally, a coil is provided near the tip of the nozzle,
An electromagnetic force is generated by passing a momentary large current through this coil, and the spatter is removed from the tip of the nozzle or the power feed tip by this electromagnetic force (Japanese Patent Application No. 60-295454).
(See Japanese Laid-Open Patent Publication No. 2003-242242), or by providing coils in a concentric circular structure and supplying currents to both coils in different directions at the same time, electromagnetic force is generated at key points of the welding torch, and spatter is generated. It has been proposed to remove it from the tip of the nozzle or the power feed tip (see Japanese Patent Application No. 62-146108).
（発明が解決しようとする問題点） しかしながら、特願昭60−295454号公報に開示された
ものは、電磁力の広がりが大きく、ノズル周辺の磁束密
度は小さいために、スパッタが充分除去できない。(Problems to be Solved by the Invention) However, in the one disclosed in Japanese Patent Application No. 60-295454, the spread of electromagnetic force is large and the magnetic flux density around the nozzle is small, so that spatter cannot be sufficiently removed.
また、特願昭62−146108号公報に開示されたものは、
スパッタが内側のコイルに衝突するため、コイルの耐久
性が損なわれることになる。また、スパッタが前記衝突
によりコイルから跳ね返り飛散するので、危険であると
共に周囲の設備装置に噛みこまれ、故障を招くことにな
る。さらに、溶接トーチから突出した溶接ワイヤが内側
コイル内に収まるよう配置することが必要になるが、こ
のためのロボットティーチング作業が非常に面倒である
という欠点がある。Further, the one disclosed in Japanese Patent Application No. 62-146108 is
Since the spatter collides with the inner coil, the durability of the coil is impaired. Further, since the spatter bounces off the coil due to the collision and is scattered, it is dangerous and bites into peripheral equipment and causes a failure. Further, it is necessary to arrange the welding wire protruding from the welding torch so as to fit inside the inner coil, but there is a drawback that the robot teaching work for this purpose is very troublesome.
そのため、本発明は、スパッタをトーチからほぼ完全
に除去できるとともに、スパッタがコイルと衝突しない
スパッタ除去装置を提供するものである。Therefore, the present invention provides a spatter removing device that can almost completely remove spatter from a torch and does not collide with the coil.
（問題点を解決するための手段） 本発明は上記問題点を解決するために、ノズル７の先
端部側に主コイル２を配置するとともに、主コイル２よ
りもノズル７の基端部側に副コイル３を配置し、スパッ
タ12の除去時には主コイル２と副コイル３とに電流を互
いに逆向きに流し、主コイル２と副コイル３とから発生
する磁力線を互いに逆向きにしたことを特徴とするもの
である。(Means for Solving the Problems) In order to solve the above problems, the present invention arranges the main coil 2 on the tip end side of the nozzle 7 and arranges the main coil 2 on the base end side of the nozzle 7 with respect to the main coil 2. The sub-coil 3 is arranged so that when the spatter 12 is removed, currents are made to flow through the main coil 2 and the sub-coil 3 in opposite directions, and the magnetic force lines generated from the main coil 2 and the sub-coil 3 are opposite to each other. It is what
（作用） 本発明は以上のように構成したので、主コイル２と副
コイル３とに同時に電流を流して両コイル２、３を励磁
させると、主コイル２の磁力線は副コイル３の起磁力に
よって、主コイル２と副コイル３との間の磁束密度変化
は最大になる。このため主コイル２内の磁束は主コイル
２の内面に集中し、スパッタ12を通る磁力線の磁束密度
変化が大きくなる。(Operation) Since the present invention is configured as described above, when a current is simultaneously applied to the main coil 2 and the sub coil 3 to excite both coils 2 and 3, the magnetic force line of the main coil 2 causes the magnetomotive force of the sub coil 3. This maximizes the change in magnetic flux density between the main coil 2 and the sub coil 3. Therefore, the magnetic flux in the main coil 2 is concentrated on the inner surface of the main coil 2, and the change in the magnetic flux density of the magnetic force line passing through the spatter 12 becomes large.
また、スパッタ12はノズル前方のコイル２内に吸引さ
れるので、副コイル３に衝突しない。Further, since the spatter 12 is sucked into the coil 2 in front of the nozzle, it does not collide with the sub coil 3.
（実施例） 以下に、本発明の一実施例を図面に基いて詳細に説明
する。(Example) Below, one Example of this invention is described in detail based on drawing.
第１図において、１はアーク溶接トーチのスパッタ除
去装置で、主コイル２と副コイル３とを主な構成とし、
両コイル２、３は電流供給源４から供給された電流によ
って励磁される。５はアーク溶接トーチ５で、６はトー
チ本体、７はセラミックからなるノズルで、トーチ本体
６の先端部に螺着されている。トーチ本体６の内部およ
びノズル７内部には、第２図に示すように、給電チップ
８が配設され、給電チップ８の先端部にはを給電チップ
８の中心部を貫通した溶接ワイヤ９が導かれている。な
お、図示を省略したシールドガス経路はトーチ本体６に
設けてあり、溶接作業時にはノズル７と給電チップ８と
の間から噴出する。In FIG. 1, 1 is a spatter removing device for an arc welding torch, which has a main coil 2 and a sub coil 3 as main components,
Both coils 2 and 3 are excited by the current supplied from the current supply source 4. Reference numeral 5 is an arc welding torch 5, 6 is a torch body, and 7 is a nozzle made of ceramics, which is screwed to the tip of the torch body 6. As shown in FIG. 2, a power feed tip 8 is provided inside the torch body 6 and inside the nozzle 7, and a welding wire 9 penetrating the center of the power feed tip 8 is provided at the tip of the power feed tip 8. Have been guided. A shield gas path (not shown) is provided in the torch body 6 and is jetted from between the nozzle 7 and the power supply tip 8 during welding work.
主コイル２は電流によって誘起された電磁力によりノ
ズル７に堆積したスパッタ12を除去するためのものであ
り、同コイル２はノズル７の先端部と給電チップの先端
部とが、同コイル２の内部に臨むように配置され、さら
に主コイル２と副コイル３とはノズル７の軸線Ｌに同軸
状に配置され、かつこれらのコイル２、３は軸線Ｌ方向
に適宜間隔をおいて配置されている。この離間距離は、
スパッタ12を通る磁力線の磁束密度変化が最大になるよ
うに定められる。また、副コイル３はノズル７の先端部
が副コイル３によって包囲されるように配置してある。
主コイル２および副コイル３は、後述の、電流供給源４
に接続され、溶接後または溶接中断時に互いに逆向きの
電流が同時に供給される。なお、第２図はアーク溶接ト
ーチのスパッタ除去装置１の要部のみを表わしている。The main coil 2 is for removing the spatter 12 deposited on the nozzle 7 by the electromagnetic force induced by the current. The coil 2 has a tip portion of the nozzle 7 and a tip portion of the power feeding tip, The main coil 2 and the sub-coil 3 are arranged so as to face the inside, and are arranged coaxially with the axis L of the nozzle 7, and the coils 2 and 3 are arranged at appropriate intervals in the direction of the axis L. There is. This distance is
It is determined so that the change in the magnetic flux density of the magnetic force lines passing through the spatter 12 is maximized. The sub coil 3 is arranged so that the tip of the nozzle 7 is surrounded by the sub coil 3.
The main coil 2 and the sub coil 3 have a current supply source 4 which will be described later.
Are connected to each other, and electric currents opposite to each other are simultaneously supplied after welding or at the time of welding interruption. Note that FIG. 2 shows only a main part of the spatter removing device 1 of the arc welding torch.
電流供給源４は交流電源10と、この交流電源10の整流
回路11と、この整流回路11で整流された直流を充電する
ためのコンデンサ12とを主構成とするものである。電流
供給源４の出力端13は、連動する２系統のスイッチ15を
介して両コイル２、３に接続してあり、スイッチ15の開
放時に充電したコンデンサの電流を、スイッチ15の閉鎖
によって放電させ両コイル２、３に瞬間的な大電流を出
力する。電流供給源４の出力端13は接続線14を介して両
コイル２、３に接続され、この電流の向きは互いに逆向
きにしてある。The current supply source 4 is mainly composed of an AC power supply 10, a rectifier circuit 11 of the AC power supply 10, and a capacitor 12 for charging the DC rectified by the rectifier circuit 11. The output terminal 13 of the current supply source 4 is connected to both coils 2 and 3 via two interlocking switches 15, and the current of the capacitor charged when the switch 15 is opened is discharged by closing the switch 15. A large instantaneous current is output to both coils 2 and 3. The output terminal 13 of the current supply source 4 is connected to both coils 2 and 3 via a connection line 14, and the directions of the currents are opposite to each other.
つぎに、上記構成の装置１でスパッタ12を除去するに
は、まず、スイッチ15を操作して主コイル２と副コイル
３とに同時に電流を流し、両コイル２、３を励磁させ
る。このとき、両コイル２、３に発生する磁力線の方向
は逆向きで、主コイル２の磁力線は副コイル３の磁力線
によって、主コイル２の内面に集中するように発生す
る。この励磁による磁束密度変化は両コイル２、３間に
おいて最大になる。したがって、スパッタ12の吸引（除
去）力も両コイル２、３間において最大になる。この吸
引力により、スパッタ12はコイル２の内側に飛散する。Next, in order to remove the spatter 12 with the apparatus 1 having the above-described configuration, first, the switch 15 is operated to cause a current to flow through the main coil 2 and the sub coil 3 at the same time to excite both the coils 2 and 3. At this time, the magnetic lines of force generated in the coils 2 and 3 are in opposite directions, and the magnetic lines of force of the main coil 2 are generated by the magnetic lines of force of the sub coil 3 so as to concentrate on the inner surface of the main coil 2. The change in magnetic flux density due to this excitation becomes maximum between the coils 2 and 3. Therefore, the suction (removal) force of the spatter 12 is maximized between the coils 2 and 3. Due to this suction force, the spatter 12 is scattered inside the coil 2.
（発明の効果） 本発明は以上説明したように、主副コイルの配置によ
ってスパッタを通過する磁力線の磁束密度変化を最大に
するので、充分なスパッタの除去が可能になる。また、
スパッタの飛散方向にはコイルが存在しないので、スパ
ッタがコイルに衝突することはなく、このためコイルの
耐久性が向上する。さらに、トーチ本体から突出した溶
接ワイヤの位置決めを要しないので、作業が容易にな
る。(Effects of the Invention) As described above, the present invention maximizes the change in the magnetic flux density of the magnetic field lines passing through the sputter by the arrangement of the main and sub coils, so that the spatter can be sufficiently removed. Also,
Since the coil does not exist in the scattering direction of the spatter, the spatter does not collide with the coil, which improves the durability of the coil. Further, since the welding wire protruding from the torch body does not need to be positioned, the work becomes easy.
第１図は、本発明の一実施例の構成を示した斜視図、 第２図は、第１図の縦断面図である。 １……アーク溶接トーチのスパッタ除去装置 ２……主コイル、３……副コイル ７……ノズル FIG. 1 is a perspective view showing the configuration of an embodiment of the present invention, and FIG. 2 is a vertical sectional view of FIG. 1 ... Arc welding torch spatter removal device 2 ... Main coil, 3 ... Sub coil 7 ... Nozzle
Claims (1)
ともに、該主コイルよりも前記ノズルの基端部側に副コ
イルを配置し、スパッタの除去時には前記主コイルと前
記副コイルとに電流を互いに逆向きに流し、前記主コイ
ルと前記副コイルとから発生する磁力線を互いに逆向き
にしたことを特徴とするアーク溶接トーチのスパッタ除
去装置。1. A main coil is arranged on the tip end side of a nozzle, and a sub-coil is arranged on the base end side of the nozzle with respect to the main coil. When removing spatter, the main coil and the sub-coil are arranged. A spatter removing device for an arc welding torch, characterized in that electric currents are passed in opposite directions, and lines of magnetic force generated from the main coil and the sub coil are opposite directions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62236784A JP2555631B2 (en) | 1987-09-21 | 1987-09-21 | Arc welding torch spatter removal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62236784A JP2555631B2 (en) | 1987-09-21 | 1987-09-21 | Arc welding torch spatter removal device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6478679A JPS6478679A (en) | 1989-03-24 |
| JP2555631B2 true JP2555631B2 (en) | 1996-11-20 |
Family
ID=17005742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62236784A Expired - Lifetime JP2555631B2 (en) | 1987-09-21 | 1987-09-21 | Arc welding torch spatter removal device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2555631B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110030723A1 (en) * | 2008-06-24 | 2011-02-10 | Fronius International Gmbh | Apparatus and method for cleaning welding torches |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE8916249U1 (en) * | 1989-11-28 | 1996-02-01 | Paulmichl Dieter Fahrzeug- u. Anlagenbau, 88299 Leutkirch | Mechanical car park |
| JP2850504B2 (en) * | 1990-07-27 | 1999-01-27 | ブラザー工業株式会社 | Image forming device |
| US5374149A (en) * | 1993-01-13 | 1994-12-20 | Computower Technologies, Corp. | Vertical storage conveyor with symmetrical motor drive system |
| WO2001064383A1 (en) * | 2000-03-01 | 2001-09-07 | Weld-Aid Products, Inc. | Electromagnetic spatter removal from welding torch nozzle |
-
1987
- 1987-09-21 JP JP62236784A patent/JP2555631B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110030723A1 (en) * | 2008-06-24 | 2011-02-10 | Fronius International Gmbh | Apparatus and method for cleaning welding torches |
| US8627833B2 (en) * | 2008-06-24 | 2014-01-14 | Fronius International Gmbh | Apparatus and method for cleaning welding torches |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6478679A (en) | 1989-03-24 |
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