JPS6192792A - Method and device for welding - Google Patents
Method and device for weldingInfo
- Publication number
- JPS6192792A JPS6192792A JP59214912A JP21491284A JPS6192792A JP S6192792 A JPS6192792 A JP S6192792A JP 59214912 A JP59214912 A JP 59214912A JP 21491284 A JP21491284 A JP 21491284A JP S6192792 A JPS6192792 A JP S6192792A
- Authority
- JP
- Japan
- Prior art keywords
- welding
- weld zone
- laser beam
- processing head
- welded
- 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.)
- Pending
Links
Landscapes
- Laser Beam Processing (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明はレーザビーム等を利用した溶接方法及び溶接
装置に係り、特に溶接ビードを整形できる機能を備えた
ものに関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a welding method and a welding device using a laser beam or the like, and particularly to a welding device having a function of shaping a weld bead.
レーザビームなどのエネルギー密度の高い熱源を適正に
制御し被溶接材の突合せ線に添って照射させ、この部分
を溶融、再凝固させると溶接ビード巾の狭い深溶込みの
高品質溶接を行うことができる。この場合、従来のアー
ク溶接などに比べ溶接ビード巾が狭く溶接部衣・裏面の
ビードの盛上りも小さくすることができる。しかしなが
ら溶接部品質、特に継手形状の要求によっては裏゛表の
小さなビード盛上りも除去あるいはなめらかに仕上げる
事を要求される場合が多い。A high-energy-density heat source such as a laser beam is properly controlled and irradiated along the butt line of the materials to be welded, melting and resolidifying this area to perform high-quality welding with deep penetration and a narrow weld bead width. Can be done. In this case, the weld bead width is narrower than in conventional arc welding, and the bead bulge on the welding jacket and back side can also be reduced. However, depending on the quality of the weld, especially the shape of the joint, it is often required to remove small bead protrusions on the back side or to make them smooth.
この場合従来から採用されている方法を第８図。Fig. 8 shows the conventionally adopted method in this case.
第４図に示す。図において、（１）は被溶接材、（２）
はその溶接部、（３） （４）は被溶接材（１）を強固
に支持する上部クランプ及び下部クランプ、（６）（ａ
）は砥石を取り付けた上部グラインダヘッド及び下部グ
ラインダヘッド、（７）はグラインダヘッド駆動装置で
ある。It is shown in Figure 4. In the figure, (1) is the material to be welded, (2)
(3) (4) are the upper and lower clamps that firmly support the welded material (1), (6) (a)
) is an upper grinder head and a lower grinder head to which a grindstone is attached, and (7) is a grinder head driving device.
次に動゛作について説明する。溶接された被溶接材（１
）を上部り２ンプ（３）及び下部クランプ（４）でクラ
ンプし、上部グラインダヘッド（５）及び下部グライン
ダヘッド（６）：こよって溶接部（２）の上下同一位置
を加圧し砥石を回転させて走行しながら溶接部分の表溶
接ビート責８）及び裏溶接ビード（９）を同時書こ研削
除去する。グラインダヘッド（５） （６）の回転はグ
ラインダヘッド駆動装置（７）によって与えられる。Next, the operation will be explained. Welded material to be welded (1
) is clamped with the upper two clamps (3) and lower clamps (4), and the upper and lower grinder heads (5) and lower grinder heads (6) apply pressure to the same upper and lower positions of the welded part (2) and rotate the grindstone. While running, remove the front weld bead (8) and the back weld bead (9) of the welded part at the same time. Rotation of the grinder heads (5) (6) is provided by a grinder head drive (7).
この方式では溶接ビード表面は比較的高品質に研削仕上
げされるが次の様な問題点がある。ａち、上部・下部グ
ラインダヘット責５） （６）およびグラインダヘッド
駆動装置（７）などの機構が比較的大きくなり溶接装置
内に組込むことが困難であり溶接位置でビード表・裏面
の研削を行うことが出来ないため、溶接装置以後に研削
ステーションとして本方式の装置を設置せざるを得ない
。このため研削装置を含めた全溶融装置が大形化するの
みならず溶接位置から研削位置への被溶接材（１）の搬
送、研Ｆｉ１位置での溶接線と研削線の位置合せが必要
となり溶接から研削完了までに比較的時間を要する。本
発明はこれらの問題を解決し１コンノ４クトな装置で短
時間に溶接ビードを整形する装置を提供しようとするも
のである。Although this method grinds the weld bead surface to a relatively high quality, it has the following problems. First, the mechanisms such as the upper and lower grinder heads (5) (6) and the grinder head drive device (7) are relatively large and difficult to incorporate into the welding equipment, making it difficult to grind the front and back surfaces of the bead at the welding position. Since this cannot be done, it is necessary to install this type of equipment as a grinding station after the welding equipment. For this reason, not only does the entire melting device including the grinding device become larger, but it also becomes necessary to transport the welded material (1) from the welding position to the grinding position, and to align the weld line and the grinding line at the grinding Fi1 position. It takes a relatively long time from welding to completion of grinding. The present invention aims to solve these problems and provide a device for shaping a weld bead in a short time using a single-component device.
この発明に係る溶接方法は、溶接終了後熱源を再度溶接
部に照射しその表面を再溶融させて溶接ビード表面を整
形するものである。また、この方法を実現するための溶
接装置は、溶接部検出器と、その出力により必要な照射
エネルギー密度を演算する演算器と、その出力に応じて
レーザビー・ムの焦点位置を調整□する加工ヘッド駆動
装置を備えｔコものである。In the welding method according to the present invention, after welding is completed, the heat source is irradiated onto the welded part again to re-melt the surface and shape the weld bead surface. In addition, the welding equipment to realize this method includes a welding part detector, a calculator that calculates the necessary irradiation energy density based on the output, and a process that adjusts the focal position of the laser beam according to the output. It is equipped with a head drive device.
この発明においては、溶接位置で溶接部表面を再溶融さ
せて溶接ビード表面を整形する。また１溶接部の盛り上
り高さに応じて照射エネルギー密度を制御するので、溶
接ビード表面をきれいに精度よく整形できる。In this invention, the welding part surface is remelted at the welding position to shape the weld bead surface. Furthermore, since the irradiation energy density is controlled according to the height of the bulge in one weld, the weld bead surface can be shaped neatly and precisely.
第１図、第２図はこの発明の一実施例を示す説明図で、
第８図、第４図と同一符号の部分は従来の場合と同一の
ものである。図において、αＧはレーザビームを被溶接
材（１）に照射するための加工ヘッド、（ロ）（２）は
加工ヘッドαＯの移動方向直前に組み込まれたそれぞれ
被溶接材板厚検出器及び溶接部板厚検出器、輪は雨検出
器（ロ）（２）の出力差から溶接部（２）の盛り上り高
さを演算する比較器で、再検出器（ロ）（２）及び比較
器（２）により溶接部検出器α尋を構成する。（ト）は
比較器（２）の出力から溶接部（２）の表面を再溶融さ
せるに必要な照射エネルギー密度を演算する演算器、Ｑ
Ｑは演算器（ト）の出力に応じて加工ヘッドＱＧを上下
方向に移動してレーザビームの焦点位置を調整する加工
ヘッド駆動装置である。FIG. 1 and FIG. 2 are explanatory diagrams showing one embodiment of this invention,
8 and 4 are the same as in the conventional case. In the figure, αG is a processing head for irradiating the laser beam to the welded material (1), (b) and (2) are the welding material plate thickness detector and welding material installed immediately before the moving direction of the processing head αO, respectively. The plate thickness detector, the ring is a comparator that calculates the height of the welding part (2) from the difference in the output of the rain detector (b) (2), and the re-detector (b) (2) and the comparator (2) constitutes the welding part detector α. (G) is a computing unit that calculates the irradiation energy density necessary to remelt the surface of the welded part (2) from the output of the comparator (2);
Q is a processing head driving device that moves the processing head QG in the vertical direction according to the output of the arithmetic unit (G) to adjust the focal position of the laser beam.
次に動作について説明する。先ず、溶接段階では、被溶
接後（１）は上部クランプ（３）および下部クランプ（
４）によって強固にクランプされ突合せ線に添って加工
ヘッドαＱからレーザビームのエネルギー密度の高い熱
源が適正に制御され溶接部（２）に照射させて移動しな
がら溶接を行う。溶接終了後、上部クランプ（３）及び
下部クランプ（４）はクランプされた状態のまま保持さ
れ、溶接と同一加工ヘッドαＯが再度溶接部（２）をト
レースする。この場合、加工ヘッドＱＱの直前に組込ま
れた被溶接材板厚検出器（ロ）および溶接部板厚検出器
（２）によってそれぞれの板厚を検出し比較器亜によっ
て溶接部（２）の盛り上り高さを演算させこの出力を演
算器（ト）を介して加工ヘッド駆動装置αＱに接続し加
工ヘッドＱＯから照射されるレーザビームの焦点位置を
自動的に調整することによって加工ヘッドαＯから適正
量のエネルギー密度の入熱を溶接部（２）に与えながら
走行することによって溶接部表面を再溶融させ溶接ビー
ド表面を奇麗ｌζ精度よ（整形することができる。Next, the operation will be explained. First, in the welding stage, after welding (1), the upper clamp (3) and the lower clamp (
4), the welding part (2) is firmly clamped and a high energy density heat source of a laser beam is appropriately controlled from the processing head αQ along the butt line to irradiate the welding part (2) and perform welding. After the welding is completed, the upper clamp (3) and the lower clamp (4) are held in a clamped state, and the same processing head αO that welded traces the welded part (2) again. In this case, the plate thickness of the welded material (b) and the welded part plate thickness detector (2) installed immediately before the processing head QQ detect the respective plate thicknesses, and the comparator (2) detects the thickness of the welded part (2). The height of the bulge is calculated, and this output is connected to the processing head driving device αQ via a computing unit (G), and the focal position of the laser beam irradiated from the processing head QO is automatically adjusted. By running while applying heat input with an appropriate amount of energy density to the welding part (2), the welding part surface can be remelted and the weld bead surface can be shaped with fine precision.
なお、上記実施例では裏溶接ピード（９）の整形は行っ
ていないが、一般に裏溶接ビード（９）は表溶接ビード
（８）に比較して小さく、表側のみの整形で十分な場合
が多い。In addition, although the back weld bead (9) was not shaped in the above example, the back weld bead (9) is generally smaller than the front weld bead (8), and shaping only the front side is often sufficient. .
上記実施例の方式を採用することによって（１）従来方
式では溶接装置と研削装置が別々であったため装置全体
として大きくなるとともｌ′ｃ溶接位置から研削位置へ
被溶接材（１）を搬送すること、溶接線と研削線を合せ
る位置合せが必要であったため比較的時間を要したが本
装置では溶接位置で溶接部整形を行うため装置が小型化
（１つの装置で溶接、整形ができろ）されるとともに溶
接から整形終了までの必要時間が短縮される
（２）従来のグラインダ方式研削に比べができるため研
削のみの必要時間も極端に短縮することができる
（３）グラインダ方式では研削粉が周囲に飛散するが、
本方式では表面再溶融によってビード表面を整形するの
で整形層の発生がない
などの利点が生じる。By adopting the method of the above embodiment, (1) In the conventional method, the welding device and the grinding device were separate, so the entire device becomes larger, and the material to be welded (1) is transported from the l'c welding position to the grinding position. In addition, it was necessary to align the weld line and the grinding line, which took a relatively long time, but with this device, the weld area is shaped at the welding position, so the device is smaller (one device can weld and shape). ), and the time required from welding to the completion of shaping is shortened. (2) Compared to the conventional grinder method, the time required for grinding alone can be drastically shortened. (3) With the grinder method, the amount of grinding powder is reduced. is scattered around, but
In this method, the bead surface is shaped by surface remelting, so there are advantages such as no formation of a shaping layer.
この発明は以上説明したように、溶接終了後熱源を再度
溶接部に照射しその表面を再溶融させて溶接ビード表面
を整形するので１溶接から整形完了までの必要時間を短
縮でき、溶接と整形に必要な器具を共用できるという効
果がある。また、溶接部の盛り上り高さに応じて照射エ
ネルギー密度を制御するので、溶接ビード表面をきれい
に精度よく整形できる効果がある。As explained above, this invention re-irradiates the welded part with a heat source after welding is completed to re-melt the surface and shape the weld bead surface, so the time required from one weld to completion of shaping can be shortened, and welding and shaping This has the effect of allowing the necessary equipment to be shared. Furthermore, since the irradiation energy density is controlled according to the height of the welded area, the weld bead surface can be shaped neatly and accurately.
第１図、第２図はこの発明の一実施例に係る溶接装置の
整形時の状況を説明するそれぞれ正面図及び側面図、第
８図、第４図は従来の装置における研削時の状況を示す
それぞれ正面図及び側面図である。図において、（１）
は被溶接材１（２）は溶接部１（８１（９）は溶接ビー
ド、ＱＯは加工ヘッド、Ｑ４は溶接部検出器、（ト）は
演算器、Ｑ叶は加工ヘッド駆動装置である。
なお１各図中同−符号は同−又は相当部分を示す。FIGS. 1 and 2 are front and side views, respectively, to explain the conditions during shaping of a welding device according to an embodiment of the present invention, and FIGS. 8 and 4 illustrate the conditions during grinding in a conventional device. FIG. 2 is a front view and a side view, respectively. In the figure, (1)
The material to be welded 1 (2) is the welding part 1 (81 (9) is the welding bead, QO is the processing head, Q4 is the welding part detector, (g) is the computing unit, and Q is the processing head drive device. Note that the same reference numerals in each figure indicate the same or equivalent parts.
Claims (2)
溶接材に照射して突合せ溶接を行う方法において、溶接
終了後上記熱源を制御して再度溶接部に照射し上記溶接
部の表面を再溶融させることにより上記溶接部の溶接ビ
ード表面を整形することを特徴とする溶接方法。(1) In a method of butt welding by irradiating the workpiece with a heat source with high energy density such as a laser beam, after welding is completed, the heat source is controlled and irradiated to the welded area again to remelt the surface of the welded area. A welding method characterized by shaping the weld bead surface of the welded part by
射して突合せ溶接を行うものにおいて、上記加工ヘッド
の移動方向前方に設けられ溶接後の溶接部の盛り上り高
さを検出する溶接部検出器と、この溶接部検出器の出力
から上記溶接部の表面を再溶融させるに必要な照射エネ
ルギー密度を演算する演算器と、この演算器の出力に応
じて上記加工ヘッドを移動して上記レーザビームの焦点
位置を調整する加工ヘッド駆動装置とを備えたことを特
徴とする溶接装置。(2) In a device that has a processing head and performs butt welding by irradiating the workpiece with a laser beam, a welding device is installed in front of the processing head in the direction of movement to detect the height of the weld after welding. a welding part detector; a computing unit for calculating the irradiation energy density necessary to remelt the surface of the welding part from the output of the welding part detector; and a computing unit that moves the processing head in accordance with the output of the computing unit. A welding device comprising: a processing head drive device that adjusts the focal position of the laser beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59214912A JPS6192792A (en) | 1984-10-12 | 1984-10-12 | Method and device for welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59214912A JPS6192792A (en) | 1984-10-12 | 1984-10-12 | Method and device for welding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6192792A true JPS6192792A (en) | 1986-05-10 |
Family
ID=16663628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59214912A Pending JPS6192792A (en) | 1984-10-12 | 1984-10-12 | Method and device for welding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6192792A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01105085U (en) * | 1987-12-28 | 1989-07-14 | ||
| JP2002239762A (en) * | 2001-02-19 | 2002-08-28 | Sony Corp | Method of sealing injection port of container and hermetic container |
| JP2012169255A (en) * | 2011-01-25 | 2012-09-06 | Toshiba Corp | Secondary battery and method for manufacturing secondary battery |
| EP2818272A1 (en) * | 2013-06-28 | 2014-12-31 | TI Automotive (Heidelberg) GmbH | Welding method to prevent weld cracking |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS569088A (en) * | 1979-07-04 | 1981-01-29 | Hitachi Ltd | Bead shaping method and welding torch for laser welding |
-
1984
- 1984-10-12 JP JP59214912A patent/JPS6192792A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS569088A (en) * | 1979-07-04 | 1981-01-29 | Hitachi Ltd | Bead shaping method and welding torch for laser welding |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01105085U (en) * | 1987-12-28 | 1989-07-14 | ||
| JPH0442077Y2 (en) * | 1987-12-28 | 1992-10-02 | ||
| JP2002239762A (en) * | 2001-02-19 | 2002-08-28 | Sony Corp | Method of sealing injection port of container and hermetic container |
| JP2012169255A (en) * | 2011-01-25 | 2012-09-06 | Toshiba Corp | Secondary battery and method for manufacturing secondary battery |
| EP2818272A1 (en) * | 2013-06-28 | 2014-12-31 | TI Automotive (Heidelberg) GmbH | Welding method to prevent weld cracking |
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