JP2650663B2 - Seam welding equipment - Google Patents
Seam welding equipmentInfo
- Publication number
- JP2650663B2 JP2650663B2 JP3326154A JP32615491A JP2650663B2 JP 2650663 B2 JP2650663 B2 JP 2650663B2 JP 3326154 A JP3326154 A JP 3326154A JP 32615491 A JP32615491 A JP 32615491A JP 2650663 B2 JP2650663 B2 JP 2650663B2
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- Prior art keywords
- welding
- electrode
- measuring
- welded
- diameter
- Prior art date
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- Butt Welding And Welding Of Specific Article (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明は、先行ストリップ及び
後行ストリップを重ね合わせて、１対の電極円盤から電
流を供給し、電気抵抗発熱を利用して両ストリップを連
続的に溶接するシーム溶接装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to seam welding in which a leading strip and a succeeding strip are superimposed, current is supplied from a pair of electrode discs, and both strips are continuously welded using electric resistance heating. It concerns the device.
【０００２】[0002]
【従来の技術】図８は、本出願人が既に出願している
「シーム溶接装置」（特願平３−３６８２７号）に記載
された従来のシーム溶接装置を示す斜視図である。シー
ム溶接装置は、先行ストリップ１と後行ストリップ２
（または２ａ）とを溶接して鉄鋼プロセスラインの処理
装置に連続的に材料を供給するために設けられている。
先行ストリップ１及び後行ストリップ２は被溶接材を構
成する。なお、図８の構成例で、後行ストリップ２の上
側に別の後行ストリップ２ａが設けられているのは、先
行ストリップと後行ストリップの接続時間を短縮するた
めである。2. Description of the Related Art FIG. 8 is a perspective view showing a conventional seam welding apparatus described in "Seam Welding Apparatus" (Japanese Patent Application No. 3-36827) filed by the present applicant. The seam welding device includes a leading strip 1 and a following strip 2
(Or 2a) to continuously supply the material to the processing device of the steel process line.
The leading strip 1 and the trailing strip 2 constitute a material to be welded. In the configuration example of FIG. 8, another trailing strip 2a is provided above the trailing strip 2 in order to reduce the connection time between the preceding strip and the trailing strip.
【０００３】図８(ａ)に示すように、従来のシーム溶接
装置においては、コモンベース３に出側クランプ４及び
入側クランプ５が装着され、両クランプ４、５間にキャ
リッジ６が配置されている。キャリッジ６は、コモンベ
ース３上に設置されているガイド機構（図示せず）を案
内として、キャリッジ駆動装置７によって駆動される。
キャリッジ６には、ストリップ１、２を押し潰しながら
シーム溶接を行う１対の電極円盤８、ストリップ１、２
を切断するためのギロチンシャー９、溶接電流を給電す
るための溶接トランス１０及び二次導体１１が装着され
ている。As shown in FIG. 8A, in a conventional seam welding apparatus, an outgoing clamp 4 and an incoming clamp 5 are mounted on a common base 3 and a carriage 6 is arranged between the clamps 4 and 5. ing. The carriage 6 is driven by a carriage driving device 7 with a guide mechanism (not shown) provided on the common base 3 serving as a guide.
The carriage 6 has a pair of electrode disks 8 for performing seam welding while crushing the strips 1 and 2, and the strips 1 and 2.
, A guillotine shear 9 for cutting the wire, a welding transformer 10 for supplying a welding current, and a secondary conductor 11 are mounted.
【０００４】次に、図８に示した従来のシーム溶接装置
の動作について、図９を参照しながら説明する。まず、
図９(ａ)のように、先行ストリップ１の終端と後行スト
リップ２の先端とがギロチンシャー９の中央部（ダブル
カットシャー刃幅内）に停止した後、出側クランプ４及
び入側クランプ５でそれぞれストリップ１、２をクラン
プ拘束し、ギロチンシャー９によって先行ストリップ１
の終端と後行ストリップ２の先端とを切断する。続い
て、図９(ｂ)のように、切断された先行ストリップ１を
出側クランプ４によって傾動し、後行ストリップ２を入
側クランプ５によってインデックス（前進）する。イン
デックスが完了し出側クランプ４の傾動が元に戻ること
により重ね合わせ動作が終了し、先行ストリップ１と後
行ストリップ２とは図示の重ね量ｐ0だけ互いに重なり
合う状態になる。Next, the operation of the conventional seam welding apparatus shown in FIG. 8 will be described with reference to FIG. First,
As shown in FIG. 9 (a), after the end of the preceding strip 1 and the tip of the following strip 2 have stopped at the center of the guillotine shear 9 (within the width of the double cut shear blade), the exit clamp 4 and the entrance clamp are set. 5, the strips 1 and 2 are clamped and restrained by the guillotine shear 9, respectively.
And the leading end of the following strip 2 are cut off. Subsequently, as shown in FIG. 9B, the cut preceding strip 1 is tilted by the output clamp 4, and the succeeding strip 2 is indexed (advanced) by the input clamp 5. When the indexing is completed and the tilt of the output side clamp 4 returns to the original position, the overlapping operation is completed, and the preceding strip 1 and the following strip 2 overlap each other by the overlapping amount p 0 shown in the drawing.
【０００５】さらに、図９(ｃ)のように、重ね合わせ動
作によってストリップ端に得られた重ね量ｐ0の重ね合
わせ部に電極円盤８を下降させ、キャリッジ６をキャリ
ッジ駆動装置７によって移動させながら、溶接トランス
１０及び二次導体１１から溶接電流を供給することによ
りシーム溶接を行う。図９(ｄ)は図９(ｃ)の同じ状態の
斜視図である。溶接が完了すると、出側クランプ４、入
側クランプ５はそれぞれ先行ストリップ１、後行ストリ
ップ２を開放する。なお、図９(ｂ)のインデックス量を
調整することにより、重ね量ｐ0を調整することができ
る。[0005] Further, as shown in FIG. 9 (c), the lowering the electrode disk 8 to the overlapping portions of the overlapped amount p 0 obtained in the strip end by superimposing operation to move the carriage 6 by the carriage drive device 7 Meanwhile, seam welding is performed by supplying a welding current from the welding transformer 10 and the secondary conductor 11. FIG. 9D is a perspective view of the same state as FIG. 9C. When the welding is completed, the outlet clamp 4 and the inlet clamp 5 open the leading strip 1 and the trailing strip 2, respectively. The overlapping amount p 0 can be adjusted by adjusting the index amount in FIG. 9B.
【０００６】ここで、図９(ｃ)に示すように、重ね合わ
せ部のストリップ１、２は斜めになるので、シーム溶接
の際に電極円盤８で上下から圧力を加えると、ストリッ
プ１、２には互いに逃げようとする力が作用する。この
ため、出側クランプ４、入側クランプ５には、それぞれ
図中の矢印Ａ1、Ａ2方向の力が作用する。両クランプ
４、５は、この力を受けても動くことがないように、高
剛性の構造にする必要がある。しかるに、出側クランプ
４は傾動機能、入側クランプ５はインデックス機能を有
しているため高剛性の構造は得にくく、重ね量ｐ0がス
トリップ１、２の幅方向（図９(ａ)〜(ｃ)で紙面に垂直
な方向）に沿って変化してしまい、しばしば、溶接終端
において両クランプ４、５の間隔が広がり溶接不良が生
じていた。この現象は、重ね量ｐ0が小さいときや厚板
の溶接時に生じやすい傾向がある。Here, as shown in FIG. 9 (c), the strips 1 and 2 in the overlapped portion are oblique, and when pressure is applied from above and below with the electrode disk 8 during seam welding, the strips 1 and 2 are stripped. Act on each other. Therefore, forces in the directions of arrows A 1 and A 2 in FIG. Both clamps 4 and 5 need to have a highly rigid structure so that they do not move even under this force. However, since the exit side clamp 4 has a tilting function and the entrance side clamp 5 has an index function, it is difficult to obtain a highly rigid structure, and the overlapping amount p 0 is in the width direction of the strips 1 and 2 (FIG. 9A to FIG. (c), the distance between the two clamps 4 and 5 is increased at the end of welding, often resulting in poor welding. This phenomenon tends to easily occur at the time of or planks welding when overlapped amount p 0 is small.
【０００７】ところで、表面処理を施してある鋼板をシ
ーム溶接する場合には、電極円盤８の外周部に塗料等が
付着してしまう。これを取り除くために、一般に、図７
のように、電極円盤８ａ、８ｂの外周部にアクチュエー
タ１２ａ、１２ｂの作用によってドレッサ（電極成形用
のカッター）１３ａ、１３ｂを押し付け、電極円盤８
ａ、８ｂの外周部の研削、成形を行っている。この作業
はシーム溶接と同時に、あるいは整備用の時間を別に設
けて行われる。電極円盤８ａ、８ｂの外周部の研削、成
形に伴って電極円盤８ａ、８ｂの径は変化し、ストリッ
プ１、２と電極円盤８ａ、８ｂの接触面積すなわち通電
面積も変化する。つまり、電極円盤８ａ、８ｂの径が小
さくなると、外周の曲率が大きくなるため、通電面積は
小さくなる。なお、アクチュエータ１２ａ、１２ｂとド
レッサ１３ａ、１３ｂとによって電極成形手段が構成さ
れる。[0007] When seam welding is performed on a steel sheet that has been subjected to surface treatment, paint or the like adheres to the outer peripheral portion of the electrode disk 8. To get rid of this, generally, FIG.
The dressers (cutters for forming electrodes) 13a and 13b are pressed against the outer peripheral portions of the electrode disks 8a and 8b by the action of the actuators 12a and 12b as shown in FIG.
Grinding and forming of the outer peripheral portions of a and 8b are performed. This can be done at the same time as seam welding or with a separate time for maintenance. The diameters of the electrode disks 8a and 8b change as the outer peripheral portions of the electrode disks 8a and 8b are ground and formed, and the contact area between the strips 1 and 2 and the electrode disks 8a and 8b, that is, the current-carrying area also changes. That is, when the diameter of the electrode disks 8a and 8b decreases, the curvature of the outer periphery increases, and the energization area decreases. The electrode forming means is constituted by the actuators 12a and 12b and the dressers 13a and 13b.
【０００８】[0008]
【発明が解決しようとする課題】従来のシーム溶接装置
においては、重ね量ｐ0がストリップ１、２の幅方向で
変化している場合にも電流値等の溶接条件は一定のまま
である。このため、重ね量ｐ0が変化する場合には、こ
の変化に従って通電面積が変化し、さらに抵抗発熱量に
寄与する電流密度が変化するので、良好な溶接品質を安
定して得ることができないという問題点があった。ま
た、重ね量ｐ0を一定に保つためには、特別の拘束装置
が必要となり、構造の複雑化、重量及びコストの増大を
招くという問題点があった。In THE INVENTION An object of Trying to solve a conventional seam welding apparatus welding conditions of a current value and the like even when the overlapping amount p 0 is varied in the width direction of the strip 1 remains constant. For this reason, when the overlap amount p 0 changes, the current-carrying area changes in accordance with this change, and the current density contributing to the resistance heating value also changes, so that good welding quality cannot be stably obtained. There was a problem. Further, in order to keep the overlap amount p 0 constant, requires special restraint device, complication of the structure, there is a problem that results in an increase in weight and cost.
【０００９】また、電極円盤８ａ、８ｂの外周部の研
削、成形を、特にシーム溶接と同時に行う場合には、同
様に、通電面積の変化に従って電流密度が変化するの
で、良好な溶接品質を安定して得ることができないとい
う問題点があった。Also, when the outer peripheral portions of the electrode disks 8a and 8b are ground and formed at the same time as seam welding, the current density similarly changes in accordance with the change in the energized area. There was a problem that it could not be obtained.
【００１０】この発明は、上記のような問題点を解決す
るためになされたもので、重ね量や電極円盤径が変化し
た場合にも最適の溶接条件でシーム溶接を行うことがで
きるシーム溶接装置を得ることを目的とする。The present invention has been made in order to solve the above-mentioned problems, and a seam welding apparatus capable of performing seam welding under optimum welding conditions even when the overlapping amount or the electrode disk diameter changes. The purpose is to obtain.
【００１１】[0011]
【課題を解決するための手段】この発明の請求項１に係
る発明のシーム溶接装置は、被溶接材の溶接中において
重ね量を測定する重ね量測定手段と、重ね量測定手段の
出力信号に基づいて各溶接条件を最適溶接条件に設定す
る溶接条件設定手段とを備えたものである。According to a first aspect of the present invention, there is provided a seam welding apparatus comprising: an overlap amount measuring means for measuring an overlap amount during welding of a material to be welded; and an overlap amount measuring means. And welding condition setting means for setting each welding condition to an optimum welding condition based on the output signal of the above.
【００１２】また、この発明の請求項２に係る発明のシ
ーム溶接装置は、被溶接材の溶接中において電極円盤の
径を直接測定する電極円盤径測定手段と、電極円盤径測
定手段の出力信号に基づいて溶接電流、溶接速度及び電
極円盤加圧力の各溶接条件を最適溶接条件に設定する溶
接条件設定手段とを備えたものである。Further, according to a second aspect of the present invention, there is provided a seam welding apparatus comprising: an electrode disk diameter measuring means for directly measuring the diameter of an electrode disk during welding of a material to be welded ; and an output signal of the electrode disk diameter measuring means. Based on welding current, welding speed and current
And welding condition setting means for setting each welding condition of the electrode force of the disk to an optimum welding condition.
【００１３】さらに、この発明の請求項３に係る発明の
シーム溶接装置は、被溶接材の溶接中において電極成形
手段が外周部の研削及び成形を行った時間を測定するこ
とにより電極円盤の径を間接的に測定する電極円盤径間
接測定手段と、電極円盤径間接測定手段の出力信号に基
づいて溶接電流、溶接速度及び電極円盤加圧力の各溶接
条件を最適溶接条件に設定する溶接条件設定手段とを備
えたものである。Further, in the seam welding apparatus according to a third aspect of the present invention, the diameter of the electrode disk is measured by measuring the time during which the electrode forming means performs grinding and forming of the outer peripheral portion during welding of the material to be welded. Electrode disk diameter indirect measuring means for indirectly measuring electrode welding diameter , and welding condition setting for setting welding conditions of welding current, welding speed and electrode disk pressing force to optimal welding conditions based on output signals of electrode disk diameter indirect measuring means Means.
【００１４】[0014]
【作用】この発明の請求項１に係る発明においては、被
溶接材の溶接中において重ね量測定手段によって被溶接
材の重ね量が測定され、溶接条件設定手段によって、測
定された重ね量に基づいて最適溶接条件が求められさら
に各溶接条件が最適溶接条件に設定される。[Action] In the invention according to claim 1 of the present invention, the
During welding of the welding material, the overlapping amount of the material to be welded is measured by the overlapping amount measuring means, and the optimum welding conditions are obtained based on the measured overlapping amount by the welding condition setting means, and each welding condition is adjusted to the optimum welding condition. Is set.
【００１５】また、この発明の請求項２に係る発明にお
いては、被溶接材の溶接中において電極円盤径測定手段
によって電極円盤の径が直接測定され、溶接条件設定手
段によって、測定された電極円盤径に基づいて最適溶接
条件が求められさらに各溶接条件が最適溶接条件に設定
される。In the invention according to claim 2 of the present invention, the diameter of the electrode disk is directly measured by the electrode disk diameter measuring means during welding of the material to be welded , and the measured electrode disk is measured by the welding condition setting means. Optimal welding conditions are determined based on the diameter, and each welding condition is set as the optimal welding condition.
【００１６】さらに、この発明の請求項３に係る発明に
おいては、被溶接材の溶接中において電極円盤径間接測
定手段によって、電極成形手段による研削及び成形の時
間に基づいて電極円盤径が間接的に測定され、溶接条件
設定手段によって、測定された電極円盤径に基づいて最
適溶接条件が求められさらに各溶接条件が最適溶接条件
に設定される。Further, in the invention according to claim 3 of the present invention, the electrode disk diameter is indirectly measured by the electrode disk diameter indirect measuring means during welding of the material to be welded based on the grinding and forming time by the electrode forming means. The optimum welding conditions are determined by the welding condition setting means based on the measured electrode disk diameter, and the respective welding conditions are set to the optimum welding conditions.
【００１７】[0017]
【実施例】実施例１． 図１はこの発明の請求項１に係る発明の実施例１を示す
構成図、図２は同じく斜視図であり、図８、図９と同一
または相当部分には同一符号を付し、その説明は省略す
る。先行ストリップ１の終端位置は、この位置に応じて
前後するプレート１４ａを備えたポテンショメータ１５
ａによって測定される。同様に、後行ストリップ２の先
端位置は、プレート１４ｂを備えたポテンショメータ１
５ｂによって測定される。ポテンショメータ１５ａ、１
５ｂは、キャリッジ６（図８参照）に取り付けられてい
る。演算装置１６は、ポテンショメータ１５ａ、１５ｂ
の出力信号を入力されてストリップ１、２の重ね量ｐ0
を演算し、さらに、最適溶接条件を演算する。コントロ
ーラ１７は、各溶接条件（溶接電流、溶接速度及び電極
円盤加圧力）を演算によって求められた最適溶接条件に
設定する。また、プレート１４ａ、１４ｂとポテンショ
メータ１５ａ、１５ｂは重ね量測定手段を構成し、演算
装置１６とコントローラ１７は溶接条件設定手段を構成
する。[Embodiment 1] FIG. 1 is a block diagram showing a first embodiment of the present invention according to claim 1 of the present invention, and FIG. 2 is a perspective view of the same, in which the same or corresponding parts as those in FIGS. Is omitted. The end position of the preceding strip 1 is determined by a potentiometer 15 having a plate 14a which moves back and forth according to this position.
It is measured by a. Similarly, the leading end position of the trailing strip 2 is determined by the potentiometer 1 having the plate 14b.
5b. Potentiometers 15a, 1
5b is attached to the carriage 6 (see FIG. 8). The arithmetic unit 16 includes potentiometers 15a, 15b
And the overlap amount p 0 of the strips 1 and 2
And the optimum welding conditions are calculated. The controller 17 sets each welding condition (welding current, welding speed, and electrode disc pressure) to the optimum welding condition obtained by calculation. Further, the plates 14a, 14b and the potentiometers 15a, 15b constitute an overlapping amount measuring means, and the arithmetic unit 16 and the controller 17 constitute welding condition setting means.
【００１８】次に、図１、図２に示したこの発明の実施
例１の動作について、図３のフローチャートを参照しな
がら説明する。まず、互いに距離Ｌだけ離して設置され
たポテンショメータ１５ａ、１５ｂによって、先行スト
リップ１の終端位置までの距離ｐaと後行ストリップ２
の先端位置までの距離ｐbとが測定される（ステップＳ
１）。なお、プレート１４ａ、１４ｂは、電極円盤８か
ら溶接線方向（図１において紙面に垂直な方向）に一定
間隔離して設置されている。続いて、演算装置１６は、
ポテンショメータ１５ａ、１５ｂから距離ｐa、ｐbを入
力されて、次の式に従って重ね量ｐ0を演算する（ス
テップＳ２）。Next, the operation of the first embodiment of the present invention shown in FIGS. 1 and 2 will be described with reference to the flowchart of FIG. First, the potentiometer 15a disposed apart by a distance L from one another by 15b, the distance to the end position of the leading strip 1 p a and the trailing strip 2
And the distance p b of to the tip position is measured (step S
1). The plates 14a and 14b are spaced apart from the electrode disk 8 by a certain distance in the direction of the welding line (the direction perpendicular to the plane of FIG. 1). Subsequently, the arithmetic unit 16
Potentiometer 15a, is input distance p a, a p b from 15b, calculates the overlap amount p 0 according to the following equation (step S2).
【００１９】ｐ0＝Ｌ−（ｐa＋ｐb） … P 0 = L− (p a + p b )
【００２０】求められた重ね量ｐ0に対応する最適溶接
条件、すなわち、溶接電流、溶接速度及び電極円盤加圧
力の最適な組み合わせが、演算装置１６によって演算さ
れる（ステップＳ３）。ここで、種々の重ね量ｐ0に対
応する最適溶接条件は、実測データまたは数値計算デー
タを用いて予め求められている。さらに、コントローラ
１７は、溶接条件を、演算によって求められた最適溶接
条件に設定する（ステップＳ４）。以上の動作は、前回
求められた最適溶接条件のシーム溶接と同時に行われ、
また、シーム溶接が終了するまで（ステップＳ５）繰り
返し連続的に行われる。The optimum welding condition corresponding to the determined overlapping amount p 0 , that is, the optimum combination of the welding current, the welding speed and the electrode disc pressing force is calculated by the calculating device 16 (step S3). Here, the optimum welding conditions corresponding to the various overlapping amounts p 0 have been obtained in advance using actual measurement data or numerical calculation data. Further, the controller 17 sets the welding conditions to the optimum welding conditions obtained by the calculation (Step S4). The above operation is performed at the same time as seam welding under the optimal welding conditions obtained last time,
Further, the welding is repeatedly and continuously performed until the seam welding is completed (step S5).
【００２１】なお、実施例１では重ね量ｐ0の測定手段
としてポテンショメータ１５ａ、１５ｂを用いたが、図
４のように、非接触式計測器１８ａ、１８ｂ、例えばレ
ーザ変位計やＣＣＤカメラを用いてもよい。[0021] Incidentally, the potentiometer 15a as means for measuring lap amount p 0 In Example 1, was used 15b, as shown in FIG. 4, the non-contact measurement device 18a, 18b, for example, a laser displacement meter or a CCD camera using You may.
【００２２】実施例２． 図５はこの発明の請求項２に係る発明の実施例２を示す
構成図であり、１、２、８ａ、８ｂ、１７は前述と同様
のものである。ストリップ１、２は、図示の範囲Ｂ1に
おいては溶接され一体となっており、範囲Ｂ2において
は溶接前であり別々の状態である。変位計１９ａ、１９
ｂは、外周部の研削、成形に伴って変化する電極円盤８
ａ、８ｂの外周までの距離を測定するレーザ変位計ある
いはポテンショメータ等であり、また、キャリッジ６
（図８参照）に取り付けられている。演算装置１６ａ
は、変位計１９ａ、１９ｂの出力信号を入力されて電極
円盤８ａ、８ｂの径を演算し、さらに、最適溶接条件を
演算する。また、変位計１９ａ、１９ｂは電極円盤径測
定手段を構成し、演算装置１６ａとコントローラ１７は
溶接条件設定手段を構成する。Embodiment 2 FIG. FIG. 5 is a block diagram showing a second embodiment of the present invention according to a second embodiment of the present invention, wherein 1, 2, 8a, 8b and 17 are the same as those described above. Strips 1,2 are integral welded in the range B 1 shown, in the range B 2 is and separate states before welding. Displacement gauges 19a, 19
b is an electrode disk 8 that changes with the grinding and forming of the outer periphery.
a, a potentiometer or a laser displacement meter for measuring the distance to the outer periphery of 8b.
(See FIG. 8). Arithmetic unit 16a
Calculates the diameters of the electrode disks 8a and 8b by inputting the output signals of the displacement meters 19a and 19b, and further calculates the optimum welding conditions. Further, the displacement meters 19a and 19b constitute an electrode disk diameter measuring means, and the arithmetic unit 16a and the controller 17 constitute a welding condition setting means.
【００２３】次に、図５に示したこの発明の実施例２の
動作について、図６のフローチャートを参照しながら説
明する。まず、電極円盤８ａの中心から距離Ｌ1の位置
に設置された変位計１９ａによって、電極円盤８ａの外
周までの距離ｑ1が測定される。同様に距離ｑ2も測定さ
れる（ステップＳ６）。続いて、演算装置１６ａは、変
位計１９ａ、１９ｂから距離ｑ1、ｑ2を入力されて、次
の式、に従って電極円盤径ｑ01、ｑ02を演算する
（ステップＳ７）。Next, the operation of the second embodiment of the present invention shown in FIG. 5 will be described with reference to the flowchart of FIG. First, the displacement meter 19a disposed from the center of the electrode disc 8a at a distance L 1, the distance q 1 to the outer periphery of the electrode disc 8a is measured. Similarly the distance q 2 is also measured (step S6). Subsequently, the computing device 16a receives the distances q 1 and q 2 from the displacement meters 19a and 19b, and computes the electrode disk diameters q 01 and q 02 according to the following equation (step S7).
【００２４】 ｑ01＝Ｌ1−ｑ1 … ｑ02＝Ｌ2−ｑ2 … Q 01 = L 1 −q 1 ... Q 02 = L 2 −q 2 .
【００２５】ここで、演算装置１６ａは、求められた電
極円盤径ｑ01、ｑ02から電極円盤８ａ、８ｂの径の差す
なわち｜ｑ01−ｑ02｜を演算し、これが基準値内にある
か否かを判定して（ステップＳ８）、基準値より大きい
場合には円盤電極８ａ、８ｂの交換等の処置をさせるた
めに異常シグナルを出力する（ステップＳ９）。一方、
基準値内にある場合には、演算装置１６ａは、電極円盤
径ｑ01、ｑ02（または、ｑ01、ｑ02の平均値）に対応す
る最適溶接条件を演算する（ステップＳ１０）。ここ
で、種々の電極円盤径ｑ01、ｑ02に対応する最適溶接条
件は、実測データまたは数値計算データを用いて予め求
められている。さらに、コントローラ１７は、各溶接条
件を、演算によって求められた最適溶接条件に設定する
（ステップＳ１１）。以上の動作は、前回求められた最
適溶接条件のシーム溶接と同時に行われ、また、シーム
溶接が終了するまで（ステップＳ１２）繰り返し連続的
に行われる。[0025] Here, the arithmetic unit 16a is the obtained electrode disk diameter q 01, q 02 from the electrode disk 8a, difference or diameter of 8b | q 01 -q 02 | computes, it is within the reference value It is determined whether or not this is the case (step S8), and if it is larger than the reference value, an abnormal signal is output in order to take measures such as replacement of the disk electrodes 8a and 8b (step S9). on the other hand,
If it is within the reference value, the arithmetic unit 16a calculates the optimal welding conditions corresponding to the electrode disk diameters q 01 and q 02 (or the average value of q 01 and q 02 ) (step S10). Here, the optimum welding conditions corresponding to the various electrode disk diameters q 01 and q 02 are obtained in advance using actual measurement data or numerical calculation data. Further, the controller 17 sets each welding condition to the optimum welding condition obtained by the calculation (step S11). The above operation is performed simultaneously with the seam welding under the optimum welding conditions obtained last time, and is repeatedly and continuously performed until the seam welding is completed (step S12).
【００２６】実施例３． 実施例２においては、電極円盤８ａ、８ｂの径を、変位
計１９ａ、１９ｂによって言わば直接的に測定した。こ
れを、ドレッサ１３ａ、１３ｂによる電極円盤径の研削
及び成形の時間を測定することにより、電極円盤径を間
接的に測定するようにしてもよい。つまり、ドレッサ１
３ａ、１３ｂの研削成形能力は、例えば１秒当たり１ｍ
ｍというように一定であるので、研削及び成形の時間と
既知である電極円盤径の初期値とから、その時点での電
極円盤径を間接的に測定することができる。なお、実施
例３はこの発明の請求項３に係る発明の実施例であり、
研削及び成形の時間の測定器が電極円盤径間接測定手段
を構成する。Embodiment 3 FIG. In Example 2, the diameters of the electrode disks 8a, 8b were measured directly by the displacement meters 19a, 19b. The diameter of the electrode disk may be measured indirectly by measuring the time for grinding and forming the electrode disk diameter by the dressers 13a and 13b. That is, dresser 1
The grinding capacity of 3a, 13b is, for example, 1 m per second.
m, the electrode disk diameter at that time can be indirectly measured from the grinding and forming times and the known initial value of the electrode disk diameter. Embodiment 3 is an embodiment of the invention according to claim 3 of the present invention.
The measuring device for grinding and forming time constitutes an electrode disk diameter indirect measuring means.
【００２７】[0027]
【発明の効果】以上のようにこの発明の請求項１に係る
発明によれば、被溶接材の溶接中にお いて重ね量を測定
する重ね量測定手段と、重ね量測定手段の出力信号に基
づいて各溶接条件を最適溶接条件に設定する溶接条件設
定手段とを備えたので、被溶接材の溶接中において重ね
量が変化した場合にも最適の溶接条件でシーム溶接を行
うことができるシーム溶接装置が得られる効果がある。According to the invention according to claim 1 above in the invention according to the present invention, the overlap amount measuring means for measuring the amount Again have you during welding of the workpieces, the output signal of the superimposed measuring means And a welding condition setting means for setting each welding condition to an optimum welding condition based on the welding conditions. Therefore, even when the overlap amount changes during welding of the material to be welded , seam welding can be performed under the optimum welding condition. There is an effect that a welding device can be obtained.
【００２８】また、この発明の請求項２に係る発明によ
れば、被溶接材の溶接中において電極円盤の径を直接測
定する電極円盤径測定手段と、電極円盤径測定手段の出
力信号に基づいて溶接電流、溶接速度及び電極円盤加圧
力の各溶接条件を最適溶接条件に設定する溶接条件設定
手段とを備えたので、被溶接材の溶接中において電極円
盤径が変化した場合にも最適の溶接条件でシーム溶接を
行うことができるシーム溶接装置が得られる効果があ
る。According to the invention of claim 2 of the present invention, the electrode disk diameter measuring means for directly measuring the diameter of the electrode disk during welding of the material to be welded , and the output signal of the electrode disk diameter measuring means are used. Welding current, welding speed and electrode disc pressure
With the welding condition setting means for setting each welding condition of the force to the optimum welding condition, the seam welding can be performed under the optimum welding condition even when the electrode disk diameter changes during welding of the material to be welded. There is an effect that a seam welding device can be obtained.
【００２９】さらに、この発明の請求項３に係る発明に
よれば、被溶接材の溶接中において電極成形手段が外周
部の研削及び成形を行った時間を測定することにより電
極円盤の径を間接的に測定する電極円盤径間接測定手段
と、電極円盤径間接測定手段の出力信号に基づいて溶接
電流、溶接速度及び電極円盤加圧力の各溶接条件を最適
溶接条件に設定する溶接条件設定手段とを備えたので、
被溶接材の溶接中において電極円盤径が変化した場合に
も最適の溶接条件でシーム溶接を行うことができるシー
ム溶接装置が得られる効果がある。Further, according to the third aspect of the present invention, the diameter of the electrode disk can be indirectly measured by measuring the time during which the electrode forming means performs grinding and forming of the outer peripheral portion during welding of the material to be welded. Electrode disk diameter indirect measuring means to measure the diameter and welding based on the output signal of the electrode disk diameter indirect measuring means
With welding condition setting means for setting each welding condition of current, welding speed and electrode disc pressing force to optimal welding conditions,
There is an effect that a seam welding apparatus capable of performing seam welding under optimum welding conditions can be obtained even when the electrode disk diameter changes during welding of the material to be welded .
【図１】 この発明の請求項１に係る発明の実施例１を
示す構成図である。FIG. 1 is a configuration diagram showing a first embodiment of the present invention according to claim 1 of the present invention.
【図２】 実施例１を示す斜視図である。FIG. 2 is a perspective view showing the first embodiment.
【図３】 実施例１の動作を示すフローチャートであ
る。FIG. 3 is a flowchart illustrating an operation according to the first exemplary embodiment.
【図４】 この発明の請求項１に係る発明の別の実施例
を示す構成図である。FIG. 4 is a configuration diagram showing another embodiment of the invention according to claim 1 of the present invention.
【図５】 この発明の請求項２に係る発明の実施例２を
示す構成図である。FIG. 5 is a configuration diagram showing a second embodiment of the present invention according to a second embodiment of the present invention.
【図６】 実施例２の動作を示すフローチャートであ
る。FIG. 6 is a flowchart illustrating the operation of the second embodiment.
【図７】 一般的なシーム溶接装置における電極円盤外
周部の研削、成形を示す構成図である。FIG. 7 is a configuration diagram showing grinding and forming of an outer peripheral portion of an electrode disk in a general seam welding apparatus.
【図８】 従来のシーム溶接装置を示す斜視図である。FIG. 8 is a perspective view showing a conventional seam welding apparatus.
【図９】 従来のシーム溶接装置の動作の説明図であ
る。FIG. 9 is a diagram illustrating the operation of a conventional seam welding apparatus.
１ 先行ストリップ、２ 後行ストリップ、８，８ａ，
８ｂ 電極円盤，１２ａ，１２ｂ アクチュエータ、１
３ａ，１３ｂ ドレッサ、１４ａ，１４ｂ プレート、
１５ａ、１５ｂ ポテンショメータ、１６，１６ａ 演
算装置、１７コントローラ、１８ａ，１８ｂ 非接触式
計測器、１９ａ，１９ｂ 変位計、ｐ0 重ね量、
ｑ01、ｑ02 電極円盤径。1 leading strip, 2 trailing strip, 8, 8a,
8b Electrode disk, 12a, 12b Actuator, 1
3a, 13b dresser, 14a, 14b plate,
15a, 15b potentiometers, 16, 16a arithmetic unit, 17 controller, 18a, 18b non-contact type measuring instrument, 19a, 19b displacement meter, p 0 overlapped amount,
q 01 , q 02 Electrode disk diameter.
Claims (3)
接材の重ね合わせ部を挟みこんで前記重ね合わせ部に溶
接電流を供給することにより、電気抵抗発熱を利用して
前記被溶接材の溶接を連続的に行う１対の電極円盤を有
するシーム溶接装置において、前記被溶接材の溶接中において 前記重ね量を測定する重
ね量測定手段と、前記重ね量測定手段の出力信号に基づ
いて各溶接条件を最適溶接条件に設定する溶接条件設定
手段とを備えたことを特徴とするシーム溶接装置。1. A welding current is supplied to the overlapped portion by sandwiching the overlapped portion of a pair of materials to be overlapped with each other by an overlap amount, thereby welding the material to be welded using electric resistance heating. In a seam welding apparatus having a pair of electrode discs for continuously performing the welding, the overlap amount measuring means for measuring the overlap amount during welding of the material to be welded , and each welding is performed based on an output signal of the overlap amount measuring means. A welding condition setting means for setting conditions to optimum welding conditions.
１対の被溶接材の重ね合わせ部を挟みこんで前記重ね合
わせ部に溶接電流を供給することにより、電気抵抗発熱
を利用して前記被溶接材の溶接を連続的に行う１対の電
極円盤と、前記表面処理の影響を受けた前記電極円盤の
外周部の研削及び成形を行う電極成形手段とを有するシ
ーム溶接装置において、前記被溶接材の溶接中において 前記電極円盤の径を直接
測定する電極円盤径測定手段と、前記電極円盤径測定手
段の出力信号に基づいて溶接電流、溶接速度及び電極円
盤加圧力の各溶接条件を最適溶接条件に設定する溶接条
件設定手段とを備えたことを特徴とするシーム溶接装
置。2. A welding current is supplied to the overlapped portion by sandwiching the overlapped portion of a pair of materials to be welded which are overlapped with each other and subjected to surface treatment. a pair of electrode disk to perform welding of wood continuously, in the seam welding apparatus and an electrode forming means for performing grinding and shaping of the outer peripheral portion of the electrode disc affected by the surface treatment, the material to be welded An electrode disk diameter measuring means for directly measuring the diameter of the electrode disk during welding, and a welding current, a welding speed and an electrode circle based on an output signal of the electrode disk diameter measuring means.
A welding condition setting means for setting each welding condition of the panel pressing force to an optimum welding condition.
１対の被溶接材の重ね合わせ部を挟みこんで前記重ね合
わせ部に溶接電流を供給することにより、電気抵抗発熱
を利用して前記被溶接材の溶接を連続的に行う１対の電
極円盤と、前記表面処理の影響を受けた前記電極円盤の
外周部の研削及び成形を行う電極成形手段とを有するシ
ーム溶接装置において、前記被溶接材の溶接中において 前記電極成形手段が前記
外周部の研削及び成形を行った時間を測定することによ
り前記電極円盤の径を間接的に測定する電極円盤径間接
測定手段と、前記電極円盤径間接測定手段の出力信号に
基づいて溶接電流、溶接速度及び電極円盤加圧力の各溶
接条件を最適溶接条件に設定する溶接条件設定手段とを
備えたことを特徴とするシーム溶接装置。3. A welding current is supplied to the overlapped portion by sandwiching the overlapped portion of a pair of materials to be welded which are superimposed on each other and a welding current is supplied to the overlapped portion. a pair of electrode disk to perform welding of wood continuously, in the seam welding apparatus and an electrode forming means for performing grinding and shaping of the outer peripheral portion of the electrode disc affected by the surface treatment, the material to be welded During the welding of the electrode disc, the electrode disc indirect measuring means for indirectly measuring the diameter of the electrode disc by measuring the time during which the electrode forming means performs the grinding and shaping of the outer peripheral portion, and the electrode disc diameter indirect measuring A welding condition setting means for setting welding conditions such as a welding current, a welding speed and an electrode disc pressing force to optimum welding conditions based on an output signal of the means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3326154A JP2650663B2 (en) | 1991-12-10 | 1991-12-10 | Seam welding equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3326154A JP2650663B2 (en) | 1991-12-10 | 1991-12-10 | Seam welding equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05154662A JPH05154662A (en) | 1993-06-22 |
| JP2650663B2 true JP2650663B2 (en) | 1997-09-03 |
Family
ID=18184657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3326154A Expired - Lifetime JP2650663B2 (en) | 1991-12-10 | 1991-12-10 | Seam welding equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2650663B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4445633B2 (en) | 2000-02-28 | 2010-04-07 | 菊池プレス工業株式会社 | Seam welding method and apparatus |
| JP4489284B2 (en) * | 2000-12-22 | 2010-06-23 | 菊池プレス工業株式会社 | Seam welding equipment |
| JP4926397B2 (en) * | 2004-12-15 | 2012-05-09 | 株式会社Ｆｔｓ | Welding control device for seam welding machine |
| JP6323352B2 (en) * | 2015-01-30 | 2018-05-16 | Ｊｆｅスチール株式会社 | Seam welding machine lower electrode ring height control device, seam welding system, and seam welding machine lower electrode ring height control method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6021823A (en) * | 1983-07-19 | 1985-02-04 | Asahi Glass Co Ltd | Hollow body of silicate |
| JPS6152994A (en) * | 1984-08-21 | 1986-03-15 | Sumitomo Metal Ind Ltd | Continuous hot rolling |
| JPS63115685A (en) * | 1986-11-04 | 1988-05-20 | Horie Kinzoku Kogyo Kk | Automatic switching device for welding condition of seam welding machine |
| JPH01135176U (en) * | 1988-03-09 | 1989-09-14 |
-
1991
- 1991-12-10 JP JP3326154A patent/JP2650663B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05154662A (en) | 1993-06-22 |
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