JPH0353824Y2 - - Google Patents
Info
- Publication number
- JPH0353824Y2 JPH0353824Y2 JP1985134517U JP13451785U JPH0353824Y2 JP H0353824 Y2 JPH0353824 Y2 JP H0353824Y2 JP 1985134517 U JP1985134517 U JP 1985134517U JP 13451785 U JP13451785 U JP 13451785U JP H0353824 Y2 JPH0353824 Y2 JP H0353824Y2
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- workpiece
- welding
- split mold
- torch
- 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
- 238000003466 welding Methods 0.000 claims description 31
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Arc Welding In General (AREA)
Description
【考案の詳細な説明】
(産業上の利用分野)
本考案は、管継手の自動溶接装置、より詳細に
はトーチ及びトーチへワイヤを供給するワイヤ供
給装置を配設した摺動自在のワーククランプ部を
備え、特にその厚さが3mm以下程度の薄肉のアル
ミニウム製の管にアルミニウム製の管継手をミグ
溶接(MIG溶接)するのに適した装置に関する。[Detailed description of the invention] (Field of industrial application) The present invention is an automatic welding device for pipe joints, more specifically, a slidable work clamp equipped with a torch and a wire supply device that supplies wire to the torch. The present invention relates to an apparatus suitable for MIG welding an aluminum pipe joint to a thin-walled aluminum pipe having a thickness of approximately 3 mm or less.
(従来の技術)
この種薄肉の管に管継手をミグ溶接する場合、
低電流領域におけるアークの不安定さを補うた
め、最近ではパルスドミグ溶接法が採用されてお
り、このパスルドミグ溶接の採用により比較的薄
肉の管に管継手を溶接することが可能となつてき
ている。(Prior art) When MIG welding a pipe joint to this kind of thin-walled pipe,
In order to compensate for the instability of the arc in the low current range, pulsed DIG welding has recently been adopted, and by adopting this pulsed DIG welding, it has become possible to weld pipe joints to relatively thin-walled pipes.
(考案が解決しようとする問題点)
しかしパルスドミグ溶接にあつても、従来の自
動溶接装置を用いたのでは、管の肉厚が3mm以下
程度の薄肉のものになると、溶接部への入熱のコ
ントロールが困難となり、穴あき等が生じ高速で
自動式ミグ溶接を施すことができなかつた。(Problem that the invention aims to solve) However, even in pulsed welding, if conventional automatic welding equipment is used, heat input to the welded part will increase when the tube has a thin wall thickness of about 3 mm or less. It became difficult to control the welding process, causing holes, etc., and it was not possible to perform automatic MIG welding at high speed.
(問題を解決するための手段)
本考案に係る管継手の自動溶接装置は、上記し
た如き問題点に鑑み考案したもので、トーチと、
トーチへワイヤを供給するワイヤ供給装置と、管
及び管継手からなるワークの端部をクランプする
ワーククランプ部とを備え、自動でワークをクラ
ンプし且つ管継手の溶接を行なう管継手の自動溶
接装置であつて、上記ワーククランプ部は、ワー
ク固定側先端部に、上記管の端面に当接する円筒
形状の当金と、当金から突設し閉じた状態では上
記管の内径より小さい外径を有し開いた状態では
上記管の内壁に圧接する外径を有する割型と、当
金及び割型内を軸心方向に進退自在であつて割型
を拡開させる外径を有するマンドレルとを備えて
いることを特徴とするものである。(Means for solving the problem) The automatic welding device for pipe joints according to the present invention was devised in view of the above-mentioned problems.
An automatic pipe joint welding device that is equipped with a wire supply device that supplies wire to a torch, and a work clamp section that clamps the end of a workpiece consisting of a pipe and a pipe joint, and that automatically clamps the workpiece and welds the pipe joint. The work clamp section has a cylindrical abutment that abuts the end surface of the tube at its tip on the workpiece fixing side, and a cylindrical abutment that protrudes from the abutment and has an outer diameter smaller than the inner diameter of the tube when closed. A split mold having an outer diameter that presses against the inner wall of the pipe when opened, and a mandrel that is movable in the axial direction within the stopper and the split mold and has an outer diameter that expands the split mold. It is characterized by the fact that it is equipped with
(実施例)
本考案に係る自動溶接装置の実施例を示す第1
図及び第2図において、1は駆動側ワーククラン
プ部であり、2は従動側ワーククランプ部であ
り、これらワーククランプ部1,2にはそれぞれ
トーチ支持台3が固着されており、これらトーチ
支持台3にトーチ3aが上下方向に摺動自在に取
付けられている。これらトーチ3aの上下動をモ
ータ3bにより行い、又前記トーチ支持台3には
トーチ3aにワイヤ3cを供給するワイヤ供給装
置3dを併設してある。(Example) A first example showing an example of an automatic welding device according to the present invention.
In the figures and FIG. 2, 1 is a drive side work clamp part, 2 is a driven side work clamp part, and a torch support stand 3 is fixed to each of these work clamp parts 1 and 2, and these torch supports A torch 3a is attached to the stand 3 so as to be slidable in the vertical direction. These torches 3a are moved up and down by a motor 3b, and the torch support base 3 is also provided with a wire supply device 3d for supplying a wire 3c to the torch 3a.
ワーククランプ部1,2は基台4に固着された
固定部1a,2aとこれら固定部1a,2aに基
台4の長さ方向に摺動自在に取付けられた摺動部
1b,2bとから構成されており、これら摺動部
1b,2bの駆動は油圧装置(図示せず)により
行なうようになつている。駆動側ワーククランプ
部1の摺動部1bには、ワーク回転装置1cが載
置されている。又ワーククランプ部1,2のワー
ク固定側先端部には、円筒形状の当金1d,2d
及び多数の割目が形成された割型1e,2eを突
設すると共に、割型1e,2eの軸心方向に進退
自在の先細状となしたマンドレル1f,2fを内
設してあり、上記当金1d,2dの前進(お互い
に接近する方向への動き)により管5及び管継手
6,7から成るワーク8の挾持を行なうと共にワ
ーク8の長さ方向の位置決めを行なう一方、マン
ドレル1f,2fの前進により割型1e,2eを
拡開させ、割型1e,2eをワーク8の内周壁面
に圧接させるごとくなしている。即ち、割型1
e,2eは、閉じた状態では管5の内径より小さ
い外径を有し開いた状態では管5の内壁に圧接す
る外径を有しており、マンドレル1f,2fは、
割型1e,2eを拡開させる外径を有している。 The work clamp parts 1 and 2 consist of fixed parts 1a and 2a fixed to the base 4 and sliding parts 1b and 2b attached to these fixed parts 1a and 2a so as to be slidable in the length direction of the base 4. The sliding parts 1b and 2b are driven by a hydraulic system (not shown). A work rotation device 1c is mounted on the sliding portion 1b of the drive-side work clamp portion 1. In addition, cylindrical butts 1d and 2d are provided at the ends of the workpiece clamping parts 1 and 2 on the workpiece fixing side.
The split molds 1e and 2e with a large number of splits are provided protrudingly, and tapered mandrels 1f and 2f that can move forward and backward in the axial direction of the split molds 1e and 2e are provided inside, and the above-mentioned The forward movement of the supports 1d and 2d (movement toward each other) clamps the workpiece 8 consisting of the pipe 5 and the pipe fittings 6 and 7, and positions the workpiece 8 in the length direction, while the mandrels 1f, As 2f advances, the split dies 1e, 2e are expanded, and the split dies 1e, 2e are brought into pressure contact with the inner circumferential wall surface of the work 8. That is, split mold 1
e, 2e have an outer diameter smaller than the inner diameter of the tube 5 in the closed state, and have an outer diameter that presses against the inner wall of the tube 5 in the open state, and the mandrels 1f, 2f are
It has an outer diameter that expands the split molds 1e and 2e.
基台4には、ワーク8を受け取り排出すると共
にワーク8の高さ方向の位置決めを行なうワーク
受け台9,9を立設すると共に、これらワーク受
け台9,9間にワーク8の移動を容易にする受け
ローラ10,10が立設されている。 Work holders 9, 9 are provided upright on the base 4 for receiving and discharging the work 8 and positioning the work 8 in the height direction, and the work 8 can be easily moved between these work holders 9, 9. Receiving rollers 10, 10 are provided upright.
以上の如く構成した管継手の自動溶接装置に制
御装置11、ミグ溶接機12及び冷却水循環装置
(図示せず)を接続して溶接を行なうのであり、
13は電源用配線、14は冷却水配管、15はシ
ールドガスとしてのArガスの供給管である。 Welding is performed by connecting the control device 11, MIG welding machine 12, and cooling water circulation device (not shown) to the automatic welding device for pipe joints configured as described above.
Reference numeral 13 indicates power supply wiring, 14 indicates a cooling water pipe, and 15 indicates a supply pipe for Ar gas as a shielding gas.
溶接を接すワーク8は、例えば第3図に示すご
とく雄側管継手6及び雌側管継手7を備えるもの
で、ワンタツチで同軸上に配置した2個の管の接
続が行え、砂漠地帯の灌漑に主に使用されてお
り、アルミニウム製の管径約50mm〜150mm、肉厚
1.3〜1.5mm程度のものである。 The workpiece 8 to be welded is equipped with a male pipe joint 6 and a female pipe joint 7, for example, as shown in Fig. 3, and can connect two coaxially arranged pipes with a single touch, making it ideal for desert areas. Mainly used for irrigation, aluminum pipe diameter approximately 50mm to 150mm, wall thickness
It is about 1.3 to 1.5 mm.
上記した管継手の自動溶接装置を用いてワーク
8に溶接を施すには、まず管5の両端部に管継手
6,7をセツトした状態のワーク8をワーク受け
台9,9に供給した後、当金1d,2dを油圧装
置によりワーク8側に前進させ、管5両端面にそ
れぞれ当金1d,2dを当接させると同時に割型
1e,2eを管5の両端部に挿入する。次に、マ
ンドレル1f,2fを割型1e,2eの軸心方向
に前進させて割型1e,2eを拡開し、割型1
e,2eを管5の内周壁面に押圧してワーク8の
固定を行なうと同時に管5の両端部を拡管させて
管5と、管継手6,7との間の溶接部のギヤツプ
をなくする。 To weld the workpiece 8 using the automatic welding device for pipe fittings described above, first, the workpiece 8 with the pipe fittings 6 and 7 set at both ends of the pipe 5 is fed to the workpiece holders 9 and 9. The butts 1d and 2d are advanced toward the workpiece 8 by a hydraulic device, and the split dies 1e and 2e are inserted into both ends of the tube 5 at the same time as the butts 1d and 2d are brought into contact with both end surfaces of the tube 5, respectively. Next, the mandrels 1f and 2f are advanced in the axial direction of the split molds 1e and 2e to expand the split molds 1e and 2e.
e and 2e are pressed against the inner circumferential wall surface of the pipe 5 to fix the workpiece 8, and at the same time, both ends of the pipe 5 are expanded to eliminate the gap in the weld between the pipe 5 and the pipe fittings 6 and 7. do.
次に駆動側ワーククランプ部1のワーク回転装
置1cを駆動すると同時にトーチ3a,3aを管
継手6,7端部の溶接部分をめがけて下降させ、
ワーク8を回転させながらパルスドミグ溶接を施
す。ワーク回転装置1cは、ワーク8の回転周速
度が1m/minとなる程度に設定し、又いわゆる
スロープコントロールとしての溶接電流の制御
は、開始時をスロープアツプとし、クレータ処理
時をスロープダウンとする。 Next, while driving the work rotation device 1c of the drive-side work clamp section 1, the torches 3a, 3a are lowered toward the welded parts at the ends of the pipe joints 6, 7,
Pulse DOMIG welding is performed while rotating the workpiece 8. The workpiece rotation device 1c is set to such an extent that the circumferential rotational speed of the workpiece 8 is 1 m/min, and the welding current is controlled as a so-called slope control such that the welding current is sloped up at the start and sloped down at the time of cratering treatment. .
溶接が終了すれば、トーチ3a,3aを上昇復
帰させ、マンドレル1f,2fを後退させること
により割型1e,2eによるワーク8への押圧を
解除した後、当金1d,2dを後退させてワーク
8のクランプを解除し、ワーク8を溶接装置から
排出する。 When the welding is completed, the torches 3a, 3a are raised and returned, and the mandrels 1f, 2f are moved back to release the pressure on the workpiece 8 by the split molds 1e, 2e. 8 is released, and the workpiece 8 is discharged from the welding device.
上記した実施例によれば、割型1e,2eの拡
開によりワーク8の固定が確実に行なわれると同
時に、管5と管継手6,7とのギヤツプをなくし
て密接状態を良好なものとなして溶接を施すこと
ができ、しかもワーク8の溶接部内側に溶接時に
は割型1e,2eを位置せしめているのでがこれ
ら割型1e,2eが薄肉管5を厚肉管となすごと
くの効果を発揮することとなり、薄肉管に溶接を
施す場合には特に必要となる微妙な入熱のコント
ロールを必要とせず、管5の肉厚が薄く1mm程度
のものまで高速で自動式のパルスドミグ溶接を施
すことが可能となる。 According to the above-described embodiment, the workpiece 8 is securely fixed by expanding the split molds 1e and 2e, and at the same time, the gap between the pipe 5 and the pipe fittings 6 and 7 is eliminated to maintain a good close contact state. Furthermore, since the split dies 1e and 2e are positioned inside the welded part of the workpiece 8 during welding, these split dies 1e and 2e have the effect of turning the thin-walled pipe 5 into a thick-walled pipe. This makes it possible to perform high-speed, automatic pulsed MIG welding of pipes 5 with a thickness of approximately 1 mm, without requiring delicate control of heat input, which is especially necessary when welding thin-walled pipes. It becomes possible to apply
尚上記実施例では、1対のトーチ3a,3aを
配設し、ワーク両端部において同時に溶接を施す
場合を示したが、何らかかる構造に限られるもの
ではなく、溶接を施すのはわーくの片側端部のみ
とし、他方端部側にはトーチ等を配置しない単な
る従動側ワーククランプ部となしてもよい。 In the above embodiment, a pair of torches 3a, 3a are arranged and welding is performed at both ends of the workpiece at the same time, but the structure is not limited to this, and it is difficult to perform welding. It is also possible to provide only one end of the workpiece clamping section and a mere driven-side work clamping section without a torch or the like disposed at the other end.
(考案の効果)
本考案に係る管継手の自動溶接装置によれば、
溶接時の入熱の微妙なコントロールを要せず、1
mm程度の薄肉の管に管継手を高速で自動式パルス
ドミグ溶接することが可能となるのである。(Effects of the invention) According to the automatic welding device for pipe joints according to the invention,
1 without requiring delicate control of heat input during welding.
This makes it possible to perform high-speed automatic pulse-domig welding of pipe joints on pipes as thin as mm.
第1図は本考案実施例の全体を示す一部縦断側
面略図、第2図は要部の部分縦断面図、第3図は
ワークの縦断側面図である。1……駆動側ワーク
クランプ部、2……従動側ワーククランプ部、1
e,2e……割型、1f,2f……マンドレル、
3a……トーチ、3c……ワイヤ、3d……ワイ
ヤ供給装置、5……管、6,7……管継手、8…
…ワーク。
FIG. 1 is a schematic partial longitudinal sectional view showing the entire embodiment of the present invention, FIG. 2 is a partial vertical sectional view of the main part, and FIG. 3 is a vertical sectional side view of a workpiece. 1... Drive side work clamp section, 2... Drive side work clamp section, 1
e, 2e... split mold, 1f, 2f... mandrel,
3a...Torch, 3c...Wire, 3d...Wire supply device, 5...Pipe, 6, 7...Pipe joint, 8...
…work.
Claims (1)
給装置と、管及び管継手からなるワークの端部を
クランプするワーククランプ部とを備え、自動で
ワークをクランプし且つ管継手の溶接を行なう管
継手の自動溶接装置であつて、上記ワーククラン
プ部は、ワーク固定側先端部に、上記管の端面に
当接する円筒形状の当金と、当金から突設し閉じ
た状態では上記管の内径より小さい外径を有し開
いた状態では上記管の内壁に圧接する外径を有す
る割型と、当金及び割型内を軸心方向に進退自在
であつて割型を拡開させる外径を有するマンドレ
ルとを備えていることを特徴とする管継手の自動
溶接装置。 A pipe joint that is equipped with a torch, a wire supply device that supplies wire to the torch, and a work clamp section that clamps the end of a workpiece consisting of a pipe and a pipe joint, and that automatically clamps the workpiece and welds the pipe joint. The workpiece clamp section is an automatic welding device, and the workpiece clamp section includes a cylindrical abutment that abuts the end surface of the tube at the tip of the workpiece fixing side, and a cylindrical abutment that protrudes from the abutment and is smaller than the inner diameter of the tube in a closed state. A split mold having an outer diameter that presses against the inner wall of the pipe when opened, and an outer diameter that allows the split mold to be moved forward and backward in the axial direction within the stopper and the split mold to expand the split mold. An automatic welding device for pipe fittings, characterized in that it is equipped with a mandrel.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1985134517U JPH0353824Y2 (en) | 1985-09-02 | 1985-09-02 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1985134517U JPH0353824Y2 (en) | 1985-09-02 | 1985-09-02 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6261390U JPS6261390U (en) | 1987-04-16 |
JPH0353824Y2 true JPH0353824Y2 (en) | 1991-11-26 |
Family
ID=31035827
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1985134517U Expired JPH0353824Y2 (en) | 1985-09-02 | 1985-09-02 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0353824Y2 (en) |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55129585U (en) * | 1978-11-29 | 1980-09-12 |
-
1985
- 1985-09-02 JP JP1985134517U patent/JPH0353824Y2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS6261390U (en) | 1987-04-16 |
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