JPS5855863B2 - Shoumo Denkiyokua - Kuyosetsuki - Google Patents
Shoumo Denkiyokua - KuyosetsukiInfo
- Publication number
- JPS5855863B2 JPS5855863B2 JP13320575A JP13320575A JPS5855863B2 JP S5855863 B2 JPS5855863 B2 JP S5855863B2 JP 13320575 A JP13320575 A JP 13320575A JP 13320575 A JP13320575 A JP 13320575A JP S5855863 B2 JPS5855863 B2 JP S5855863B2
- Authority
- JP
- Japan
- Prior art keywords
- core wire
- feeding
- speed
- guide tube
- consumable electrode
- 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
Links
Landscapes
- Arc Welding In General (AREA)
Description
【発明の詳細な説明】
本発明は消耗電極アーク溶接機における消耗電極心線送
給部の改良に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a consumable electrode core wire feeding section in a consumable electrode arc welding machine.
第１図は従来のこの種溶接機の略図で、この図において
１は消耗電極心線（以下心線と云う）、２はこの心線の
案内管、３は給電用のチップ、４は心線供給ローラで、
このローラは電動機（図示せず）により、駆動されその
回転数を調節することにより心線１の送給速度を調節す
るものである。Figure 1 is a schematic diagram of a conventional welding machine of this type. In this figure, 1 is a consumable electrode core wire (hereinafter referred to as the core wire), 2 is a guide tube for this core wire, 3 is a power supply tip, and 4 is a core wire. With the wire supply roller,
This roller is driven by an electric motor (not shown), and the feeding speed of the core wire 1 is adjusted by adjusting its rotation speed.
５は上記電動機を含む心線送給装置である。Reference numeral 5 denotes a core wire feeding device including the above-mentioned electric motor.
この第１図に示す溶接機において案内管２内の心線１の
状態は第２図Ａに示すように「たわみ」をみせている状
態と、同図Ｂに示すように真直ぐになった状態との間を
変動するようになるものでこれは案内管２と心線１との
間に作用する摩擦力が変化するためである。In the welding machine shown in Fig. 1, the state of the core wire 1 in the guide tube 2 is "deflected" as shown in Fig. 2A, and in a straight state as shown in Fig. 2B. This is because the frictional force acting between the guide tube 2 and the core wire 1 changes.
このように心線１が「たわみ」をみせる状態から真直ぐ
になる状態に移行するとき、すなわち案内管２と心線１
との間に作用する摩擦力が小さくなるときには給電チッ
プ３から送り出される心線１の速度が速くなるもので、
またこれと逆の場合すなわち心線１が真直ぐな状態から
「たわみ」の状態に移行するときには給電チップ３から
送り出される心線１の速さは遅くなるものである。In this way, when the core wire 1 transitions from a state showing "deflection" to a state where it becomes straight, that is, the guide tube 2 and the core wire 1
When the frictional force acting between the
Moreover, in the opposite case, that is, when the core wire 1 shifts from a straight state to a "deflected" state, the speed of the core wire 1 sent out from the power feeding chip 3 becomes slow.
この結果送給ローラ４によって一定速度で心線１が送ら
れているに拘らず第３図に示すように給電チップ３から
送り出される心線１の速度変動が大きくなりこの心線の
速度が消耗電極アーク特有のアーク自己制御作用の適用
範囲外になる場合がありこのためにアークが不安定とな
るものである。As a result, even though the core wire 1 is being fed at a constant speed by the feeding roller 4, as shown in FIG. The arc self-control function peculiar to electrode arcs may not be applicable, and the arc becomes unstable.
この不利を除くには心線１の案内管２内での状態を第２
図Ａの状態またはＢの状態の伺れか一方に限定するのが
有効である。In order to eliminate this disadvantage, the state of the core wire 1 in the guide tube 2 should be
It is effective to limit the situation to either the state shown in Figure A or the state shown in Figure B.
本発明は以上の点に鑑み第４図に示すように案内管２の
先端と給電チップ３との間の心線１に送給抵抗を与える
ための例えば押しばねのような機構６，６′を設け、こ
れにより心線に対し常に一定の送給抵抗を与えて案内管
２内で心線１が常に第２図ａの状態を保持するようにし
たものである。In view of the above points, the present invention provides mechanisms 6, 6', such as push springs, for applying feeding resistance to the core wire 1 between the tip of the guide tube 2 and the power feeding tip 3, as shown in FIG. is provided so that a constant feeding resistance is always applied to the core wire so that the core wire 1 is always maintained in the state shown in FIG. 2a within the guide tube 2.
このようにすれば第５図に示すように給電チップ３から
の心線１の送り出し速度の変化を小さくすることができ
従ってアークが安定して良好な溶接を行なうことができ
るようになるものである。In this way, as shown in Fig. 5, the change in the feeding speed of the core wire 1 from the power feeding tip 3 can be reduced, and the arc can be stabilized and good welding can be performed. be.
但しこの場合心線１と与えられる送給抵抗が大きすぎる
ときは心線の「たわみ」が大きくなり過ぎて心線１の座
屈を招来するので、送給抵抗としては最大３ｋｇまでが
適当である。However, in this case, if the feeding resistance given to the core wire 1 is too large, the "deflection" of the core wire will become too large and cause buckling of the core wire 1, so a maximum of 3 kg is appropriate as the feeding resistance. be.
また心線１に与えられる送給抵抗が小さ過ぎる場合には
心線１の送り出し速度の変化を小にする効果がないので
最小５００ｇ以上の送給抵抗が必要である。Furthermore, if the feeding resistance given to the core wire 1 is too small, it will not be effective in reducing changes in the feeding speed of the core wire 1, so a minimum feeding resistance of 500 g or more is required.
従って本発明においては第４図に示すように調整ネジ７
を設けて上記送給抵抗の調整を行ってもよくまた押しば
ね６，６′と心線１との間の摩擦力によって送給抵抗を
与える場合この押しばね６，６′の表面に動摩擦と静摩
擦との差の小さな材料、すなわちせん断強さの小さい材
料または層状固体物質等例えばグラファイトなどを用い
ると上記送給速度の変動を小さくすることができる。Therefore, in the present invention, as shown in FIG.
Alternatively, if the feeding resistance is provided by the frictional force between the push springs 6, 6' and the core wire 1, dynamic friction may be applied to the surface of the push springs 6, 6'. By using a material with a small difference in static friction, that is, a material with a small shear strength, or a layered solid material such as graphite, the above-mentioned fluctuation in the feeding speed can be reduced.
第６図は本発明の他の実施例を示すものでこの実施例で
は心線１に摩擦抵抗を与える代りに慣性抵抗を与えるよ
うにしたものである。FIG. 6 shows another embodiment of the present invention, in which inertial resistance is applied to the core wire 1 instead of frictional resistance.
すなわち給電チップ３と心線案内管２との間に心線の移
動によって回転させられるローラ６．６′を設け、この
ローラの回転によって回転させられる慣性をもったはず
み車７をローラ６と結合したものである。That is, a roller 6,6' that is rotated by the movement of the core wire is provided between the power supply tip 3 and the wire guide tube 2, and a flywheel 7 having inertia that is rotated by the rotation of this roller is coupled to the roller 6. It is something.
但しローラ６自身を慣性の太きなるはずみ車としても差
支えない。However, the roller 6 itself may be used as a flywheel with a large inertia.
この第６図の実施例では心線１が動力源となってはずみ
車７を回転させているので心線１は案内管２内で一定の
「たわみ」状態が保持され上記の摩擦による送給抵抗と
同様の心線速度の安定性が保慣されるものである。In the embodiment shown in FIG. 6, since the core wire 1 serves as a power source to rotate the flywheel 7, the core wire 1 is maintained in a constant "deflection" state within the guide tube 2, and the feeding resistance due to the above-mentioned friction is maintained. The same stability of the core wire speed as in the above is maintained.
またこの実施例では仮に心線１の速度が微小な変動をみ
せてもはずみ車７の慣性運動４こよってその変動を防止
するように作用する。Furthermore, in this embodiment, even if the speed of the core wire 1 exhibits minute fluctuations, the inertial motion 4 of the flywheel 7 acts to prevent such fluctuations.
例えば心線１の速さが急に増した場合はずみ車７の速度
を増す、すなわちはずみ車７に運動のエネルギーを供給
しなければならないが、これは心線１の早さの増加の一
部が受は持つことになり心線１の急激な速度変動が防止
できる。For example, if the speed of the core wire 1 suddenly increases, the speed of the flywheel 7 must be increased, that is, kinetic energy must be supplied to the flywheel 7, but this is because part of the increase in the speed of the core wire 1 is received. As a result, sudden speed fluctuations of the core wire 1 can be prevented.
逆の場合にはずみ車７から慣性のもつエネルギーが供給
されて送給速さの低下を防止することになる。In the opposite case, inertial energy is supplied from the flywheel 7 to prevent the feed speed from decreasing.
このような効果により心線１の送給はさらに安定になり
安定した溶接が行なわれるものである。Due to these effects, the feeding of the core wire 1 becomes more stable and stable welding can be performed.
本発明の溶接機は以上説明したような構成および作用を
有するものであるから心線の送給速度が常に一定となり
安定した溶接を行なうことができるものである。Since the welding machine of the present invention has the configuration and operation as described above, the feeding speed of the core wire is always constant and stable welding can be performed.
第１図は従来の消耗電極アーク溶接機の略図、第２図は
その心線の案内管中での状態を示す図、第３図は上記従
来のこの種溶接機の心線速度の変動を示す図、第４図は
本発明溶接機の一実施例要部の断面図、第５図は本発明
溶接機の心線速度の変動を示す図、第６図は本発明溶接
機の他の実施例要部の断面図である。
１・・・・・・消耗電極心線、２・・・・・・案内管。Fig. 1 is a schematic diagram of a conventional consumable electrode arc welding machine, Fig. 2 is a diagram showing the state of the core wire in the guide tube, and Fig. 3 is a diagram showing fluctuations in the core wire speed of the above-mentioned conventional welding machine of this type. FIG. 4 is a sectional view of the essential parts of an embodiment of the welding machine of the present invention, FIG. 5 is a diagram showing fluctuations in core speed of the welding machine of the present invention, and FIG. FIG. 3 is a sectional view of the main part of the embodiment. 1... Consumable electrode core wire, 2... Guide tube.
Claims (1)
消耗電極心線にこれが座屈しない範囲の送給抵抗を付加
する手段を設けたことを特徴とする消耗電極アーク溶接
機。1. Between the guide tube that sends the consumable electrode core wire and the power supply tip,
A consumable electrode arc welding machine characterized by being provided with means for adding a feeding resistance to the consumable electrode core wire within a range that does not cause the consumable electrode core wire to buckle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13320575A JPS5855863B2 (en) | 1975-11-06 | 1975-11-06 | Shoumo Denkiyokua - Kuyosetsuki |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13320575A JPS5855863B2 (en) | 1975-11-06 | 1975-11-06 | Shoumo Denkiyokua - Kuyosetsuki |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5257051A JPS5257051A (en) | 1977-05-11 |
| JPS5855863B2 true JPS5855863B2 (en) | 1983-12-12 |
Family
ID=15099178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13320575A Expired JPS5855863B2 (en) | 1975-11-06 | 1975-11-06 | Shoumo Denkiyokua - Kuyosetsuki |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5855863B2 (en) |
-
1975
- 1975-11-06 JP JP13320575A patent/JPS5855863B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5257051A (en) | 1977-05-11 |
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