JP4733578B2 - Butt work butt joining device - Google Patents

Butt work butt joining device Download PDF

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JP4733578B2
JP4733578B2 JP2006194206A JP2006194206A JP4733578B2 JP 4733578 B2 JP4733578 B2 JP 4733578B2 JP 2006194206 A JP2006194206 A JP 2006194206A JP 2006194206 A JP2006194206 A JP 2006194206A JP 4733578 B2 JP4733578 B2 JP 4733578B2
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彰久 村田
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本発明は、例えば金属薄板製の帯状ワークからリードフレームやコネクター、シャーシ類等の各種製品を連続的に生産するプレスライン等に設置され、ライン上を流れている帯状ワークの端部同士を突合せ溶接により接合する帯状ワークの突合せ接合装置の改良に係り、特に、リードフレームのように位置決め用のパイロット孔を等間隔毎に形成した帯状ワークの突合せ接合装置に関するものである。   The present invention is installed on a press line or the like that continuously produces various products such as lead frames, connectors, chassis, etc. from a strip-shaped workpiece made of, for example, a thin metal plate, and butt-ends the ends of the strip-shaped workpiece flowing on the line In particular, the present invention relates to a butt-joining apparatus for strip-shaped workpieces in which pilot holes for positioning are formed at regular intervals like a lead frame.

一般に、鉄や銅、アルミ、ステンレス等の金属薄板製の帯状ワークを連続的に供給しながらリードフレームやコネクター、シャーシ類等を成形加工するプレスライン等に於いては、金型内へ帯状ワークを挿入するための手数を省くため、ライン上に繰り出されている帯状ワークの終端に新しい帯状ワークの始端を突合せ溶接により接合し、新しい帯状ワークをプレスラインへ連続的に供給することが行われている。   Generally, in a press line that forms lead frames, connectors, chassis, etc. while continuously supplying strip-shaped workpieces made of thin metal plates such as iron, copper, aluminum, and stainless steel, strip-shaped workpieces are put into the mold. In order to save the labor for inserting a new belt-like workpiece, the start of the new belt-like workpiece is joined to the end of the belt-like workpiece fed out on the line by butt welding, and the new belt-like workpiece is continuously supplied to the press line. ing.

従来、帯状ワークを突合せ溶接により接合する装置としては、本件発明者が先に開発した帯状金属薄板（帯状ワーク）の突合せ接合装置が知られている（例えば、特許文献１及び特許文献２参照）。
即ち、前記突合せ接合装置は、図示していないが、帯状ワークを支持載置するテーブルを備えたキャビネット本体と、帯状ワークを幅方向に切断する切断装置と、帯状ワークを突き合せた状態でその突合せ部近傍を上下方向から挾持するクランプ機構と、帯状ワークの突合せ部を突合せ溶接する溶接用トーチを備えた溶接装置と、帯状ワークの溶接部を圧延して溶接部の厚みや組織を均一化する圧延装置等から構成されており、金属薄板製の帯状ワークの突合せ溶接を高精度で且つ高能率で行うことができる等の利点を有する。 Conventionally, as a device for joining strip-shaped workpieces by butt welding, a butt-joining device for strip-shaped metal thin plates (band-shaped workpieces) previously developed by the present inventors has been known (see, for example, Patent Document 1 and Patent Document 2). .
That is, although the butt joining device is not shown, the cabinet body provided with a table for supporting and placing the strip-shaped workpiece, the cutting device for cutting the strip-shaped workpiece in the width direction, and the strip-shaped workpiece in a state in which the strip-shaped workpiece is butted. Uniform thickness and structure of the welded part by rolling the welded part of the belt-like work by rolling the welded part of the belt-like work, and a clamping device that holds the vicinity of the butted part from above and below, a welding torch that butt welds the butt part of the belt-like work It has an advantage that butt welding of a strip-shaped workpiece made of a thin metal plate can be performed with high accuracy and high efficiency.

ところで、プレス加工された帯状ワーク（位置決め用のパイロット孔等を形成したリードフレーム等）は、引き続き別のプレス工程（フォーミングプレス、切断プレス）やボンディング工程（ダイボンディング、ワイヤボンディング）等に送り込まれて加工されている。この場合にも、帯状ワークをプレス工程やボンディング工程へ連続的に供給できるように、上述した突合せ接合装置を用いて先行の帯状ワークの終端に後行の帯状ワークの始端を突合せ溶接により接合することが行われている。   By the way, the pressed strip-shaped workpiece (such as a lead frame formed with positioning pilot holes) is continuously sent to another pressing process (forming press, cutting press), bonding process (die bonding, wire bonding), etc. Have been processed. Also in this case, the start end of the succeeding strip-shaped workpiece is joined by butt welding to the end of the preceding strip-shaped workpiece using the above-described butt joining apparatus so that the strip-shaped workpiece can be continuously supplied to the pressing process or the bonding process. Things have been done.

又、プレス加工された帯状ワーク（位置決め用のパイロット孔等を形成したリードフレーム等）に於いては、プレス加工中にバリや傷、打痕跡、変形等の不良部分が発生することがある。特に、帯状ワークに部分的な変形が生じた場合には、位置決め用のパイロット孔のピッチに狂いが生じることになる。
このような状態の帯状ワークを別のプレス工程やボンディング工程等に送り込んで加工した場合、製品の品質に支障を来たすばかりでなく、金型が損傷する等の問題が発生する。然も、プレス工程中やボンディング工程中に帯状ワークの送りが不良となったり、位置決め精度が悪くなったりする等の問題も発生する。 Further, in a pressed belt-like workpiece (such as a lead frame in which a positioning pilot hole or the like is formed), defective portions such as burrs, scratches, dent marks, and deformation may occur during pressing. In particular, when a partial deformation occurs in the belt-like workpiece, the pitch of the positioning pilot holes is deviated.
When the belt-like workpiece in such a state is sent to another press process or bonding process and processed, not only will the product quality be impaired, but there will be problems such as damage to the mold. However, problems such as poor feeding of the strip-shaped workpiece and poor positioning accuracy during the pressing process and the bonding process also occur.

そのため、位置決め用のパイロット孔を形成した帯状ワークを加工するプレスライン等に於いては、帯状ワークの不良部分近傍を幅方向に切断して不良部分を取り除き、帯状ワークの切断端面同士を突合せ溶接により接合してから、不良部分の無くなった帯状ワークを後続の加工工程等へ送るようにしている。この突合せ溶接にも、上述した突合せ接合装置が使用されている。   For this reason, in press lines that process strip-shaped workpieces with pilot holes for positioning, the defective portions of the strip-shaped workpiece are cut in the width direction to remove the defective portions, and the cut end surfaces of the strip-shaped workpiece are butt welded together. After the joining, the belt-like workpiece having no defective portion is sent to the subsequent processing step or the like. The butt joining apparatus described above is also used for this butt welding.

ところが、上述した突合せ接合装置を用いてリードフレームのように一旦加工された帯状ワークを突合せ溶接する場合には、様々な問題が生じることになる。
例えば、前記突合せ接合装置の切断装置を用いて位置決め用のパイロット孔を等間隔毎に形成した帯状ワークの終端部や始端部を幅方向に切断した後、或いは帯状ワークの不良部分を切断加工により取り除いた後、二つの帯状ワークの切断端面同士を突合せ溶接により接合した場合、帯状ワークの突合せ部分のパイロット孔のピッチが狂うと云う問題が発生する。
何故なら、帯状ワークの終端部や始端部、不良部分を切断装置により切断する際に正確な位置で切断することが極め困難であり、帯状ワークの切断端面同士を突合せ溶接したときにパイロック孔のピッチにバラツキが生じるからである。その結果、この帯状ワークを後続の加工工程（ボンディング工程等）へ送り込むと、帯状ワークの送りが不良となったり、位置決め精度が悪くなったりする等、様々な不都合を生じることになる。 However, various problems arise when a belt-like workpiece once processed like a lead frame is butt welded using the butt joining apparatus described above.
For example, the cutting end of the belt-like workpiece in which the pilot holes for positioning are formed at equal intervals using the cutting device of the butt-joining device is cut in the width direction, or the defective portion of the belt-like workpiece is cut by cutting. After the removal, when the cut end faces of the two band-like workpieces are joined together by butt welding, there arises a problem that the pitch of the pilot holes at the butt portion of the band-like workpieces is out of order.
This is because it is extremely difficult to cut the end part, the start end part, and the defective part of the belt-like workpiece at an accurate position with a cutting device. This is because the pitch varies. As a result, when this belt-like workpiece is fed into a subsequent processing step (bonding step or the like), various disadvantages such as poor feeding of the belt-like workpiece or poor positioning accuracy occur.

一方、本件発明者等は、上述した問題を解決する突合せ接合装置を開発し、これを特開２００４−２８３８６６号公報（特許文献３）として公開している。
即ち、前記突合せ接合装置は、図示していないが、位置決め用のパイロット孔を等間隔毎に形成した帯状ワークを幅方向に切断する切断装置と、帯状ワークを突き合せた状態でその突合せ部近傍を上下方向から挾持するクランプ機構と、帯状ワークの突合せ部を突合せ溶接する溶接用トーチを備えた溶接装置と、帯状ワークのパイロット孔のピッチと同一ピッチで直列状に配置されて帯状ワークの各パイロット孔に夫々着脱自在に嵌合される複数本の切断用位置決めピンから成る切断用位置決め機構と、同じく帯状ワークのパイロット孔のピッチと同一ピッチで直列状に配置されて帯状ワークの各パイロット孔に夫々着脱自在に嵌合される複数本の突合せ用位置決めピンから成る突合せ用位置決め機構等を備えており、帯状ワークの切断時にそのパイロット孔を切断用位置決め機構の切断用位置決めピンに嵌め込み、又、帯状ワークの突合せ時にそのパイロット孔を突合せ用位置決め機構の突合せ用位置決めピンに嵌め込むことによって、帯状ワークの位置決めを正確に行えるようになっている。
その結果、この突合せ接合装置を用いれば、リードフレームのようにプレス加工等が施された帯状ワークであっても、帯状ワークの切断や帯状ワークの突き合せ等を夫々正確に行うことができ、接合された帯状ワークもその寸法精度が高精度に保たれることになる。 On the other hand, the present inventors have developed a butt-joining apparatus that solves the above-described problems, and has disclosed this as Japanese Patent Application Laid-Open No. 2004-283866 (Patent Document 3).
That is, although the butt joining device is not shown in the drawing, a cutting device that cuts the strip-shaped workpiece in which positioning pilot holes are formed at equal intervals in the width direction, and the vicinity of the butted portion in a state in which the strip-shaped workpiece is butted A clamping mechanism that holds the belt-shaped workpiece from above and below, a welding device equipped with a welding torch that butt-welds the butting part of the belt-shaped workpiece, and each belt-shaped workpiece arranged in series at the same pitch as the pilot hole pitch of the belt-shaped workpiece. A cutting positioning mechanism comprising a plurality of cutting positioning pins that are detachably fitted to the pilot holes, respectively, and each pilot hole of the belt-like workpiece arranged in series at the same pitch as the pilot hole pitch of the belt-like workpiece. Is equipped with a butt positioning mechanism consisting of a plurality of butt positioning pins that are detachably fitted to each other. The belt-shaped workpiece can be accurately positioned by fitting the pilot hole into the positioning pin for cutting of the positioning mechanism for cutting and by fitting the pilot hole into the positioning pin for abutting of the positioning mechanism for abutting when the belt-shaped workpiece is butted. It is like that.
As a result, using this butt-joining device, even if it is a strip-shaped workpiece that has been subjected to press processing or the like like a lead frame, it is possible to accurately perform cutting of the strip-shaped workpiece, butting of the strip-shaped workpiece, The dimensional accuracy of the joined belt-like workpieces is also kept high.

然し乍ら、上述した切断用位置決め機構及び突合せ用位置決め機構を備えた突合せ接合装置に於いても、未だ解決すべき問題点が残されている。
即ち、前記突合せ接合装置に於いては、切断用位置決め機構及び突合せ用位置決め機構が何れも帯状ワークのパイロット孔と同一ピッチで直列状に配置された複数本の位置決めピン（切断用位置決めピン及び突合せ用位置決めピン）から成り、帯状ワークの切断時及び突合せ時に前記複数本の位置決め用ピンに帯状ワークの複数のパイロット孔を夫々嵌め込んで位置決めするようにしているため、帯状ワークを切断用位置決めピンや突合せ用位置決めピンから引き抜くときに極めて引き抜き難く、取扱性や作業性に劣ると云う問題があった。特に、切断用位置決め機構及び突合せ用位置決め機構は、帯状ワークの位置決めを正確に行えるように帯状ワークのパイロット孔と位置決め用ピンとの嵌め合い公差を小さく設定しているため、前記問題がより一層顕著に現れることになる。
又、厚みの極めて薄い帯状ワークを切断用位置決めピンや突合せ用位置決めピンから無理に引き抜いたりした場合、帯状ワークが部分的に変形してしまい、パイロット孔のピッチに狂いが生じると云う問題があった。この帯状ワークを後続の加工工程（ボンディング工程等）へ送り込んだ場合には、帯状ワークの送りが不良となったり、位置決め精度が悪くなったりする等、様々な不都合を生じることになる。
更に、この突合せ接合装置に於いては、切断装置の雌型に切断用位置決めピンを、又、クランプ機構の下部クランプ板（下部治具）に突合せ用位置決めピンを夫々設け、全ての位置決めピンを同一のピッチで配置しているため、パイロット孔のピッチが全て同じ帯状ワークしか取り扱うことができないと云う問題があった。若し、パイロット孔のピッチが異なる帯状ワークを突合せ溶接する場合には、切断用位置決めピン及び突合せ用位置決めピンを異なるピッチで配置した雌型及び下部クランプ板と交換しなければならず、取り換えに極めて手数が掛かると云う問題があった。然も、別の雌型及び下部クランプ板を用意しておかなければならず、コストの高騰を招くと云う問題もあった。
特開平１１−３４７７９２号公報 特開２００１−４７２８１号公報 特開２００４−２８３８６６号公報 However, there are still problems to be solved in the butt joining apparatus provided with the above-described cutting positioning mechanism and butt positioning mechanism.
That is, in the butt welding apparatus, a plurality of positioning pins (cutting positioning pins and butt positioning mechanisms) are arranged in series at the same pitch as the pilot holes of the belt-like workpiece. Positioning pins), and when the band-shaped workpiece is cut and abutted, a plurality of pilot holes of the band-shaped workpiece are fitted into the plurality of positioning pins, respectively. In addition, there is a problem that it is very difficult to pull out from the butt positioning pin and is inferior in handling and workability. In particular, the positioning mechanism for cutting and the positioning mechanism for abutment set the fitting tolerance between the pilot hole of the strip-shaped workpiece and the positioning pin small so that the positioning of the strip-shaped workpiece can be accurately performed. Will appear.
In addition, if a strip-shaped workpiece with an extremely thin thickness is forcibly pulled out from a cutting positioning pin or a butting positioning pin, the strip-shaped workpiece is partially deformed, resulting in a problem in that the pitch of the pilot holes is distorted. It was. When this belt-like workpiece is fed to a subsequent processing step (bonding step or the like), various inconveniences such as poor feeding of the belt-like workpiece or poor positioning accuracy occur.
Further, in this butt joining device, a cutting positioning pin is provided on the female die of the cutting device, and a butt positioning pin is provided on the lower clamp plate (lower jig) of the clamp mechanism, and all the positioning pins are provided. Since they are arranged at the same pitch, there is a problem that only the belt-like workpieces having the same pitch of the pilot holes can be handled. If the belt-like workpieces with different pilot hole pitches are butt welded, the cutting positioning pins and the butt positioning pins must be replaced with female dies and lower clamp plates arranged at different pitches. There was a problem that it took a lot of work. However, another female mold and a lower clamp plate have to be prepared, and there is a problem that the cost increases.
Japanese Patent Laid-Open No. 11-347792 JP 2001-47281 A JP 2004-283866 A

本発明は、このような問題点に鑑みて為されたものであり、その目的は、取扱性や作業性に優れていると共に、位置決め用のパイプロット孔を形成した帯状ワークを変形させることなく、正確に突合せ溶接することができ、然も、一台の装置で異なるピッチのパイロット孔を形成した二種類の帯状ワークの位置決め及び突合せ溶接を行えるようにした帯状ワークの突合せ接合装置を提供することにある。   The present invention has been made in view of such problems, and its purpose is excellent in handleability and workability, and without deforming the strip-shaped workpiece in which the positioning pipe lot hole is formed. Provided is a belt workpiece butt joining apparatus that can perform butt welding accurately, but can perform positioning and butt welding of two types of belt workpieces in which pilot holes having different pitches are formed by a single device. There is.

上記目的を達成するために、本発明の請求項１の発明は、位置決め用のパイロット孔を等間隔毎に形成した帯状ワークを幅方向に切断する切断装置と、帯状ワークのパイロット孔のピッチと同一ピッチで配置されて各パイロット孔に夫々着脱自在に嵌合される複数本の切断用位置決めピンから成り、帯状ワークの切断時に帯状ワークを所定の位置に位置決めする切断用位置決め機構と、帯状ワークの切断終了後に切断用位置決めピンに嵌合された帯状ワークを切断用位置決めピンに沿って移動させて切断用位置決めピンから押し出す第１払出し機構と、二つの帯状ワークの切断端面同士を突き合せた状態でその突合せ部近傍を上下方向から挾持する上部治具及び下部治具から成るクランプ機構と、帯状ワークのパイロット孔のピッチと同一ピッチで配置されて各パイロット孔に夫々着脱自在に嵌合される複数本の突合せ用位置決めピンから成り、二つの帯状ワークの突合せ時に両帯状ワークを所定の位置に位置決めする突合せ用位置決め機構と、帯状ワークの突合せ部を突合せ溶接する溶接装置と、帯状ワークの突合せ溶接後に突合せ用位置決めピンに嵌合された帯状ワークを突合せ用位置決めピンに沿って移動させて突合せ用位置決めピンから押し出す第２払出し機構とを具備した帯状ワークの突合せ接合装置であって、前記切断用位置決めピン及び突合せ用位置決めピンは、夫々二列ずつ配置されており、一方の列の切断用位置決めピン及び突合せ用位置決めピンのピッチと他方の列の切断用位置決めピン及び突合せ用位置決めピンのピッチとを夫々異なるピッチに設定し、異なるピッチのパイロット孔を形成した二種類の帯状ワークの位置決めを行えるようにし、又、前記二列の切断用位置決めピンは、帯状ワークを位置決めして切断装置で切断するときに帯状ワークが隣接するパイロット孔の丁度中間位置で幅方向に沿って切断されるように配置されていることに特徴がある。 In order to achieve the above object, the invention of claim 1 of the present invention is a cutting device for cutting a strip-shaped workpiece in which positioning pilot holes are formed at equal intervals in the width direction, and the pitch of the pilot holes of the strip-shaped workpiece. A cutting positioning mechanism comprising a plurality of cutting positioning pins arranged at the same pitch and detachably fitted to the pilot holes, and for positioning the belt-like workpiece at a predetermined position when the belt-like workpiece is cut, and the belt-like workpiece After the end of cutting, the first payout mechanism that pushes the band-shaped workpiece fitted to the cutting positioning pin along the positioning pin for cutting and pushes it out from the positioning pin for cutting, and the cutting end surfaces of the two band-shaped workpieces are butted together In the state, the clamp mechanism consisting of an upper jig and a lower jig that holds the vicinity of the abutting part from above and below, and the pitch of the pilot holes of the belt-like workpiece are the same pitch. A butt positioning mechanism that comprises a plurality of butt positioning pins that are arranged in a pair and are detachably fitted to the pilot holes, respectively, for positioning the two band workpieces at a predetermined position when the two belt workpieces are butted. A welding apparatus for butt welding the butt portion of the belt-like workpiece, and a second payout in which the belt-like workpiece fitted to the butt positioning pin after the butt welding of the belt-like workpiece is moved along the butt positioning pin and pushed out from the butt positioning pin A strip-shaped workpiece butt joining apparatus having a mechanism , wherein the cutting positioning pins and the butt positioning pins are arranged in two rows each, and the cutting positioning pins and the butt positioning pins of one row are arranged. The pitch and the pitch of the cutting positioning pin and the butting positioning pin in the other row are set to different pitches. It is possible to perform positioning of two types of belt-shaped workpieces having pilot holes having a predetermined pitch, and the two rows of cutting positioning pins are adjacent to each other when the belt-shaped workpiece is positioned and cut by a cutting device. It is characterized in that it is arranged so as to be cut along the width direction at an intermediate position of the pilot hole .

本発明の請求項２の発明は、切断装置が、左右の下刃を備えた雌型と、雌型に対して上下動自在に配設され、雌型の左右の下刃との協働作用により帯状ワークを幅方向に切断する左右の上刃を備えた雄型と、雄型を上下動させる流体圧シリンダと、雄型に設けられ、帯状ワークの切断時に帯状ワークを雌型の上面側へ押え付ける材料押え機構とから構成されていることに特徴がある。 According to the invention of claim 2 of the present invention, the cutting device is disposed so as to be movable up and down with respect to the female mold having left and right lower blades, and cooperates with the left and right lower blades of the female mold. The male mold with left and right upper blades for cutting the strip workpiece in the width direction, the hydraulic cylinder for moving the male mold up and down, and the male mold are provided on the upper side of the female mold when cutting the strip workpiece. It is characterized in that it is composed of a material presser mechanism that presses against the foot .

本発明の請求項３の発明は、第１払出し機構が、切断用位置決めピンに沿って上下動自在に配設され、切断用位置決めピンに嵌合された帯状ワークの裏面側に当接して帯状ワークの切断用位置決めピンに嵌合された部分全域を押し上げる払出し板と、払出し板を切断用位置決めピンに沿って上下動させる駆動部とから成り、前記払出し板を駆動部により切断用位置決めピンの先端側へ移動させて切断用位置決めピンに嵌合されている帯状ワークを切断用位置決めピンから押し出すようにしたことに特徴がある。   According to a third aspect of the present invention, the first payout mechanism is arranged so as to be movable up and down along the cutting positioning pins, and comes into contact with the back side of the belt-like work fitted to the cutting positioning pins. A payout plate that pushes up the entire area of the part fitted to the workpiece cutting positioning pin, and a drive unit that moves the payout plate up and down along the cutting positioning pin. It is characterized in that the belt-like workpiece fitted to the cutting positioning pin is pushed out from the cutting positioning pin by moving to the distal end side.

本発明の請求項４の発明は、第２払出し機構が、突合せ用位置決めピンに沿って上下動自在に配設され、突合せ用位置決めピンに嵌合された帯状ワークの裏面側に当接して帯状ワークの突合せ用位置決めピンに嵌合された部分全域を押し上げるクランプ機構の下部治具を形成する下部クランプ板と、下部クランプ板を突合せ用位置決めピンに沿って上下動させる駆動部とから成り、前記下部クランプ板を駆動部により突合せ用位置決めピンの先端がわ移動させて突合せ用位置決めピンに嵌合されている帯状ワークを突合せ用位置決めピンから押し出すようにしたことに特徴がある。   According to a fourth aspect of the present invention, the second payout mechanism is arranged so as to be movable up and down along the abutting positioning pins and comes into contact with the back side of the belt-like workpiece fitted to the abutting positioning pins. The lower clamp plate that forms the lower jig of the clamp mechanism that pushes up the entire portion of the part that is fitted to the workpiece butt positioning pin, and the drive unit that moves the lower clamp plate up and down along the butt positioning pin, It is characterized in that the lower clamp plate is moved by the drive unit at the tip of the abutting positioning pin so that the belt-like workpiece fitted to the abutting positioning pin is pushed out from the abutting positioning pin.

本発明の請求項５の発明は、突合せ接合装置が、突合せ溶接により接合された帯状ワークのパイロット孔のピッチを検査する検査用ゲージを備えており、当該検査用ゲージは、検査台と、検査台に帯状ワークのパイロット孔のピッチと同一ピッチで配置されて各パイロット孔に夫々着脱自在に嵌合される複数本の検査用ピンと、検査用ピンに嵌合された帯状ワークを検査用ピンに沿って移動させて検査用ピンから押し出す取出し機構とから構成され、又、検査用ゲージの検査用ピンが、二列の状態で配置されており、一方の列の検査用ピンのピッチと他方の列の検査用ピンのピッチとを夫々異なるピッチに設定し、異なるピッチのパイロット孔を形成した二種類の帯状ワークの検査を行えるようにしたことに特徴がある。 According to a fifth aspect of the present invention, the butt joining apparatus includes an inspection gauge for inspecting the pitch of the pilot holes of the strip-shaped workpieces joined by butt welding. The inspection gauge includes an inspection table, an inspection table, A plurality of inspection pins that are arranged on the base at the same pitch as the pitch of the pilot holes of the belt-like workpiece and are detachably fitted to the pilot holes, and the belt-like workpiece fitted to the inspection pins are used as the inspection pins. The inspection pin of the inspection gauge is arranged in two rows, and the pitch of the inspection pin in one row and the other is arranged. A characteristic is that the pitch of the inspection pins in the row is set to a different pitch, and two types of belt-like workpieces having pilot holes having different pitches can be inspected .

本発明の請求項１の突合せ接合装置は、帯状ワークの切断時に帯状ワークを位置決めする複数本の切断用位置決めピンから成る切断用位置決め機構と、帯状ワークの突合せ時に帯状ワークを位置決めする複数本の突合せ用位置決めピンから成る突合せ用位置決め機構とを備えているため、位置決め用のパイロット孔を等間隔毎に形成した帯状ワークであっても、帯状ワークの切断、帯状ワークの突合せ、帯状ワークの突合せ溶接を夫々正確に行える。その結果、本発明の突合せ接合装置を用いれば、接合された帯状ワークは、その寸法精度が極めて高精度に保たれることになり、後続の加工工程に送り込んでも何ら支障を来たすことがない。
又、本発明の請求項１の突合せ接合装置は、切断用位置決めピンに嵌合された帯状ワークを切断用位置決めピンに沿って移動させて切断用位置決めピンから押し出す第１払出し機構と、突合せ用位置決めピンに嵌合された帯状ワークを突合せ用位置決めピンに沿って移動させて突合せ用位置決めピンから押し出す第２払出し機構とを備えているため、帯状ワークのパイロット孔が複数本の切断用位置決めピンや突合せ用位置決めピンに夫々嵌合されていても、帯状ワークを切断用位置決めピンや突合せ用位置決めピンから簡単且つ容易に引き抜くことができ、取扱性や作業性に優れたものとになる。然も、帯状ワークを切断用位置決めピンや突合せ用位置決めピンから無理に引き抜いたりすることがないため、帯状ワークの部分的な変形を防止することができ、帯状ワークのパイロット孔のピッチに狂いが生じることもない。
更に、本発明の請求項１の突合せ接合装置は、切断用位置決めピン及び突合せ用位置決めピンを夫々二列ずつ配置し、一方の列の切断用位置決めピン及び突合せ用位置決めピンのピッチと他方の列の切断用位置決めピン及び突合せ用位置決めピンのピッチとを夫々異なるピッチに設定しているため、異なるピッチのパイロット孔を形成した二種類の帯状ワークの位置決めを行える。その結果、従来の突合せ接合装置のように切断用位置決めピンを設けた切断装置の雌型や突合せ用位置決めピンを設けた下部クランプを別の雌型や下部クランプと交換したり、或いは新しい部品を用意したりする必要もなく、取り換えに要する手数を省けると共に、コストの低減を図れる。 According to a first aspect of the present invention, there is provided a butt joining apparatus including a cutting positioning mechanism including a plurality of cutting positioning pins for positioning a strip-shaped workpiece when the strip-shaped workpiece is cut, and a plurality of positioning mechanisms for positioning the strip-shaped workpiece when the strip-shaped workpiece is butted. Because it is equipped with a butt positioning mechanism consisting of butt positioning pins, even if it is a strip work with positioning pilot holes formed at regular intervals, cutting the strip work, butting the strip work, butting the strip work Welding can be performed accurately. As a result, when the butt joining apparatus of the present invention is used, the dimensional accuracy of the joined belt-like workpieces can be kept extremely high, and there is no problem even if it is sent to the subsequent machining process.
According to a first aspect of the present invention, there is provided a first butting mechanism for moving a strip-shaped workpiece fitted to a cutting positioning pin along the cutting positioning pin and pushing the workpiece from the cutting positioning pin. The belt-shaped workpiece fitted with the positioning pin is moved along the butting positioning pin and pushed out from the butting positioning pin, so that the pilot hole of the belt-like workpiece has a plurality of cutting positioning pins. Even if it is fitted to the positioning pins for butt contact, the belt-like workpiece can be easily and easily pulled out from the positioning pin for slicing or the positioning pin for butt contact, and the handling and workability are excellent. However, since the strip workpiece is not forcibly pulled out from the cutting positioning pin or the butt positioning pin, partial deformation of the strip workpiece can be prevented, and the pitch of the pilot holes of the strip workpiece is distorted. It does not occur.
Furthermore, in the butt-joining apparatus according to claim 1 of the present invention, the cutting positioning pins and the butting positioning pins are arranged in two rows each, and the pitch of the cutting positioning pin and the butting positioning pin in one row and the other row are arranged. Because the pitches of the cutting positioning pins and the butting positioning pins are set to different pitches, two types of belt-like workpieces having pilot holes having different pitches can be positioned. As a result, the female die of the cutting device provided with the cutting positioning pin as in the conventional butt joining device or the lower clamp provided with the butt positioning pin is replaced with another female die or the lower clamp, or a new part is replaced. There is no need to prepare it, and the labor required for replacement can be saved and the cost can be reduced.

本発明の請求項２乃至請求項５の突合せ接合装置は、上記効果に加えて更に次のような効果を奏することができる。
即ち、本発明の請求項２の突合せ接合装置は、切断装置が、左右の下刃を備えた雌型と、雌型に対して上下動自在に配設され、雌型の左右の下刃との協働作用により帯状ワークを幅方向に切断する左右の上刃を備えた雄型と、雄型を上下動させる流体圧シリンダと、雄型に設けられ、帯状ワークの切断時に帯状ワークを雌型の上面側へ押え付ける材料押え機構とから構成されているため、帯状ワークを切断するときに、帯状ワークが材料押え機構により雌型の上面側へ押圧固定されるので、帯状ワークＷの切断をより正確且つ確実に行える。
又、本発明の請求項３の突合せ接合装置は、第１払出し機構が、切断用位置決めピンに嵌合された帯状ワークの裏面側に当接して帯状ワークの切断用位置決めピンに嵌合された部分全域を押し上げる払出し板と、払出し板を切断用位置決めピンに沿って上下動させる駆動部とから構成されているため、帯状ワークを切断用位置決めピンからより一層簡単且つ容易に引き抜くことができる。その結果、帯状ワークのパイロット孔と切断用位置決め用ピンとの嵌め合い公差が小さく設定されていても、帯状ワークを切断用位置決めピンから円滑且つスムースに引き抜くことができる。
更に、本発明の請求項４の突合せ接合装置は、第２払出し機構が、突合せ用位置決めピンに嵌合された帯状ワークの裏面側に当接して帯状ワークの突合せ用位置決めピンに嵌合された部分全域を押し上げる下部クランプと、下部クランプを突合せ用位置決めピンに沿って上下動させる駆動部とから構成されているため、帯状ワークを突合せ用位置決めピンからより一層簡単且つ容易に引き抜くことができる。
そのうえ、本発明の請求項５の突合せ接合装置は、接合された帯状ワークのパイロット孔のピッチを検査する検査用ゲージを備え、当該検査用ゲージが、検査台と、検査台に帯状ワークのパイロット孔のピッチと同一ピッチで配置されて各パイロット孔に夫々着脱自在に嵌合される複数本の検査用ピンと、検査用ピンに嵌合された帯状ワークを検査用ピンに沿って移動させて検査用ピンから押し出す取出し機構とから構成されているため、寸法精度が高精度に保たれた帯状ワークを後続の加工工程等へ送ることができるうえ、帯状ワークを検査用ピンから円滑且つスムースに引き抜くことができる。
加えて、本発明の請求項５の突合せ接合装置は、検査用ゲージの検査用ピンが、二列の状態で配置されており、一方の列の検査用ピンのピッチと他方の列の検査用ピンのピッチとを夫々異なるピッチに設定しているため、異なるピッチのパイロット孔を形成した二種類の帯状ワークの検査を行え、至極便利である。 The butt-joining apparatus according to claims 2 to 5 of the present invention can further exhibit the following effects in addition to the above effects.
That is, in the butt-joining device according to claim 2 of the present invention, the cutting device is provided with a female die provided with left and right lower blades, and a female die left and right lower blade, Are provided in a male mold with a left and right upper blade that cuts the strip-shaped workpiece in the width direction by the cooperative action, a hydraulic cylinder that moves the male mold up and down, and the male workpiece when the strip-shaped workpiece is cut. Since it is composed of a material presser mechanism that presses against the upper surface side of the mold, when cutting the strip-shaped workpiece, the strip-shaped workpiece is pressed and fixed to the upper surface side of the female mold by the material presser mechanism. Can be performed more accurately and reliably.
In the butt joining apparatus according to claim 3 of the present invention, the first payout mechanism is fitted to the cutting positioning pin of the belt-like workpiece by contacting the back side of the belt-like workpiece fitted to the cutting positioning pin. Since the discharge plate that pushes up the entire region and the drive unit that moves the discharge plate up and down along the cutting positioning pins, the belt-like workpiece can be more easily and easily pulled out from the cutting positioning pins. As a result, even if the fitting tolerance between the pilot hole of the strip workpiece and the cutting positioning pin is set small, the strip workpiece can be smoothly and smoothly pulled out from the cutting positioning pin.
Furthermore, in the butt-joining device according to claim 4 of the present invention, the second payout mechanism is fitted to the butt positioning pin of the belt-like workpiece in contact with the back side of the belt-like workpiece fitted to the butt positioning pin. Since the lower clamp that pushes up the entire area and the drive unit that moves the lower clamp up and down along the butting positioning pin, the belt-like workpiece can be more easily and easily pulled out from the butting positioning pin.
In addition, the butt joining apparatus according to claim 5 of the present invention includes an inspection gauge for inspecting the pitch of the pilot holes of the joined strip-shaped workpieces, and the inspection gauge includes the inspection table and the pilot of the strip-shaped workpiece on the inspection table. Inspection with multiple inspection pins arranged at the same pitch as the holes and detachably fitted in each pilot hole, and a strip-shaped workpiece fitted to the inspection pins moved along the inspection pins Because it is composed of a take-out mechanism that pushes out from the test pin, it is possible to send the strip-shaped workpiece with high dimensional accuracy to the subsequent machining process, etc., and to smoothly and smoothly pull the strip-shaped workpiece from the inspection pin. be able to.
In addition, in the butt-joining apparatus according to claim 5 of the present invention, the inspection pins of the inspection gauge are arranged in two rows, and the pitch of the inspection pins in one row and the inspection pins in the other row are used. Since the pin pitches are set to different pitches, it is possible to inspect two types of belt-like workpieces having pilot holes with different pitches, which is extremely convenient.

図１は本発明の実施の形態に係る帯状ワークＷの突合せ接合装置を示し、当該突合せ接合装置は、金属薄板製の帯状ワークＷからリードフレームやコネクター、シャーシ類等の各種製品を連続的に生産するプレスライン等に設置されており、リードフレームのように位置決め用のパイロット孔Ｗａを等間隔毎に形成した先行の帯状ワークＷの後端に同じく位置決め用のパイロット孔Ｗａを等間隔毎に形成した後行の帯状ワークＷの先端を突合せ溶接により接合し、後行の帯状ワークＷを先行の帯状ワークＷに引き続いてライン上へ供給できるようにしたり、或いは位置決め用のパイロット孔Ｗａを等間隔毎に形成した帯状ワークＷの不良部分を切断除去し、不良部分を除去した帯状ワークＷの切断端面同士を突合せ溶接により接合し、当該帯状ワークＷを引き続いてライン上へ供給できるようにしたりするものである。   FIG. 1 shows a butt-joining apparatus for a strip-shaped workpiece W according to an embodiment of the present invention. The butt-joining device continuously feeds various products such as lead frames, connectors, and chassis from a strip-shaped workpiece W made of a thin metal plate. It is installed in the press line to be produced, etc., and the pilot holes Wa for positioning are also arranged at regular intervals at the rear end of the preceding strip-shaped workpiece W in which pilot holes Wa for positioning are formed at regular intervals like a lead frame. The leading end of the succeeding strip-shaped workpiece W is joined by butt welding so that the succeeding strip-shaped workpiece W can be supplied onto the line following the preceding strip-shaped workpiece W, or a pilot hole Wa for positioning is provided. The defective portion of the strip-shaped workpiece W formed at every interval is cut and removed, and the cut end surfaces of the strip-shaped workpiece W from which the defective portion has been removed are joined by butt welding, In which or can be supplied subsequently the workpiece W onto the line.

即ち、前記突合せ接合装置は、帯状ワークＷが支持載置される作業用テーブル１を備えたキャビネット本体２と、先行の帯状ワークＷの後端部や後行の帯状ワークＷの先端部、帯状ワークＷの不良部分近傍を幅方向に切断する切断装置３と、帯状ワークＷのパイロット孔Ｗａのピッチと同一ピッチで配置されて各パイロット孔Ｗａに夫々着脱自在に嵌合される複数本の縦向きの切断用位置決めピン４ａから成り、帯状ワークＷの切断時に帯状ワークＷを位置決めする切断用位置決め機構４と、帯状ワークＷの切断後に切断用位置決めピン４ａに嵌合された帯状ワークＷを切断用位置決めピン４ａに沿って移動させて切断用位置決めピン４ａから押し出す第１払出し機構５と、二つの帯状ワークＷの切断端面同士を突き合せた状態でその突合せ部近傍を上下方向から挾持する上部治具６及び下部治具７から成るクランプ機構８と、帯状ワークＷのパイロット孔Ｗａのピッチと同一ピッチで配置されて各パイロット孔Ｗａに夫々着脱自在に嵌合される複数本の縦向きの突合せ用位置決めピン９ａから成り、二つの帯状ワークＷの突合せ時に両帯状ワークＷを突き合せた状態で位置決めする突合せ用位置決め機構９と、両帯状ワークＷの突合せ部を突合せ溶接する溶接装置１０と、帯状ワークＷの突合せ溶接後に突合せ用位置決めピン９ａに嵌合された帯状ワークＷを突合せ用位置決めピン９ａに沿って移動させて突合せ用位置決めピン９ａから押し出す第２払出し機構１１と、帯状ワークＷの溶接部を圧延加工して溶接部の厚みや組織を均一化する圧延装置１２と、帯状ワークＷの溶接部の圧延加工時に帯状ワークＷを位置決めする圧延用位置決め機構１３と、接合された帯状ワークＷのパイロット孔Ｗａのピッチを検査する検査用ゲージ１４とから構成されており、帯状ワークＷの先端部及び後端部の切断、帯状ワークＷの不良部分の切断除去、切断された帯状ワークＷの突合せ溶接、帯状ワークＷの溶接部の圧延加工、接合された帯状ワークＷの寸法検査を夫々行えるようになっている。   That is, the butt joining apparatus includes a cabinet body 2 provided with a work table 1 on which a belt-like workpiece W is supported and placed, a rear end portion of a preceding belt-like workpiece W, a tip portion of a succeeding belt-like workpiece W, a belt-like shape. A cutting device 3 that cuts the vicinity of a defective portion of the workpiece W in the width direction, and a plurality of vertical members that are arranged at the same pitch as the pitch of the pilot holes Wa of the strip-shaped workpiece W and are detachably fitted to the pilot holes Wa, respectively. A cutting positioning mechanism 4 that includes a cutting positioning pin 4a in the direction and that positions the band-shaped workpiece W when cutting the band-shaped workpiece W, and after the band-shaped workpiece W is cut, the band-shaped workpiece W fitted to the cutting positioning pin 4a is cut. The first payout mechanism 5 that is moved along the positioning pins 4a and pushed out from the cutting positioning pins 4a, and the cut end surfaces of the two strip-shaped workpieces W are butted against each other. A clamp mechanism 8 composed of an upper jig 6 and a lower jig 7 that hold the vicinity from above and below, and the pitch of the pilot holes Wa of the strip-shaped workpiece W are arranged at the same pitch and are detachably fitted to the pilot holes Wa respectively. A butt positioning mechanism 9 for positioning the two strip-shaped workpieces W when the two strip-shaped workpieces W are butted, and a butting portion of the two strip-shaped workpieces W. And a welding apparatus 10 for butt welding, and a second one for moving the belt-like workpiece W fitted to the butt positioning pin 9a after the butt welding of the belt-like workpiece W along the butt positioning pin 9a and pushing out from the butt positioning pin 9a. Rolling device 12 for rolling out the welded portion of the discharge mechanism 11 and the belt-like workpiece W to uniformize the thickness and structure of the welded portion, and welding of the belt-like workpiece W The rolling positioning mechanism 13 for positioning the strip-shaped workpiece W during the rolling process, and the inspection gauge 14 for inspecting the pitch of the pilot holes Wa of the joined strip-shaped workpiece W, Cutting the rear end, cutting and removing defective portions of the strip-shaped workpiece W, butt welding of the strip-shaped workpiece W, rolling of the welded portion of the strip-shaped workpiece W, and dimensional inspection of the joined strip-shaped workpiece W can be performed. It has become.

前記キャビネット本体２は、前面側の中間部に水平姿勢の作業用テーブル１を備えており、当該作業用テーブル１の中間部には、図７に示すようにクランプ機構８の下部治具７が収納される凹所１ａが形成されている。この凹所１ａは、作業用テーブル１の下面に固定した左右の側板１ｂ及び左右の側板１ｂの下端に固定した下板１ｃとから形成されている。
又、キャビネット本体２の内部には、切断装置３や溶接装置１０等の駆動用モータ及び駆動用シリンダ、各駆動用モータ及び駆動用シリンダの制御装置、溶接用ガスボンベ及びその付属品、溶接用電源装置及びその制御装置（何れも図示省略）等が格納されている。 The cabinet body 2 is provided with a working table 1 in a horizontal posture at an intermediate part on the front side, and a lower jig 7 of a clamp mechanism 8 is provided in the intermediate part of the working table 1 as shown in FIG. A recess 1a to be stored is formed. The recess 1a is formed by left and right side plates 1b fixed to the lower surface of the work table 1 and a lower plate 1c fixed to the lower ends of the left and right side plates 1b.
The cabinet body 2 includes a driving motor and a driving cylinder for the cutting device 3 and the welding device 10, a control device for each driving motor and the driving cylinder, a welding gas cylinder and its accessories, and a welding power source. The device and its control device (both not shown) are stored.

前記切断装置３は、図２乃至図５に示す如く、水平姿勢の取付け台１５と、取付け台１５の上面側に固定され、左右の下刃１６ａを備えた雌型１６と、雌型１６に対して上下動自在に配設され、雌型１６の左右の下刃１６ａとの協働作用により帯状ワークＷの先端部、後端部及び不良部分近傍を幅方向に切断する左右の上刃１７ａを備えた雄型１７と、取付け台１５の下面側に固定され、雄型１７を上下動させる流体圧シリンダ１８と、雄型１７に設けられ、帯状ワークＷの切断時に帯状ワークＷを雌型１６の上面側へ押え付ける材料押え機構１９等から構成されており、作業用テーブル１の奥部に前後方向へ移動自在に配設されて帯状ワークＷの切断時に作業用テーブル１側へ引き出されるようになってる。   As shown in FIGS. 2 to 5, the cutting device 3 includes a horizontal mounting base 15, a female mold 16 that is fixed to the upper surface of the mounting base 15 and includes left and right lower blades 16 a, and a female mold 16. The left and right upper blades 17a are arranged so as to be movable up and down, and cut in the width direction at the front end portion, the rear end portion, and the vicinity of the defective portion of the belt-like workpiece W by the cooperative action with the left and right lower blades 16a of the female die 16. Are provided on the lower surface side of the mounting base 15 and move the male die 17 up and down. The male die 17 is provided on the male die 17, and the belt-like workpiece W is cut into the female die when the belt-like workpiece W is cut. 16 is composed of a material presser mechanism 19 that presses against the upper surface side of the work table 16, and is disposed at the back of the work table 1 so as to be movable in the front-rear direction, and is pulled out to the work table 1 side when the strip-shaped workpiece W is cut. It ’s like that.

具体的には、切断装置３の雌型１６は、図２乃至図５に示す如く、高速度工具鋼等の金属材によりブロック状に形成されており、その中央部付近には、雄型１７が上下動可能に挿入される平面形状凸形の挿入穴１６ｂが上下方向に貫通状に形成されていると共に、挿入穴１６ｂの幅の狭い部分には、左右の下刃１６ａが対向状態で且つ雌型１６と一体的に形成されている。
更に、雌型１６の左右の下刃１６ａ近傍の上面には、第１払出し機構５の払出し板２２が上下動自在に嵌合される左右一対の矩形状の凹部１６ｃが、又、雌型１６の左右の凹部１６ｃに対向する下面には、第１払出し機構５の駆動部２３を形成するピストン２３ｂ及びピストンロッド２３ｃが上下方向へ摺動自在に嵌合される複数の段付きのピストン穴１６ｄが夫々形成されている。 Specifically, as shown in FIGS. 2 to 5, the female die 16 of the cutting device 3 is formed in a block shape by a metal material such as high-speed tool steel, and a male die 17 is provided near the center. Is formed so as to penetrate in the vertical direction, and the left and right lower blades 16a are opposed to each other in a narrow portion of the insertion hole 16b. It is formed integrally with the female die 16.
Further, a pair of left and right rectangular recesses 16c into which the payout plate 22 of the first payout mechanism 5 is fitted up and down are fitted on the upper surface of the female die 16 in the vicinity of the left and right lower blades 16a. A plurality of stepped piston holes 16d into which a piston 23b and a piston rod 23c forming the driving portion 23 of the first payout mechanism 5 are slidably fitted in the vertical direction are formed on the lower surface of the left and right concave portions 16c. Are formed respectively.

切断装置３の雄型１７は、図２乃至図５に示す如く、高速度工具鋼等の金属材により平面形状凸形のブロック状に形成されており、幅の狭い突起部１７ｂの下面側には、左右の上刃１７ａが雄型１７と一体的に形成されている。この左右の上刃１７ａの間隔は、左右の上刃１７ａが雌型１６の左右の下刃１６ａに夫々摺接するように設定されている。
又、雄型１７の左右の上刃１７ａは、その刃先が傾斜状に形成されており、雌型１６の左右の下刃１６ａとの協働作用により帯状ワークＷを切断する際に切断装置３に大きな負荷が掛からないように工夫されている。 As shown in FIGS. 2 to 5, the male die 17 of the cutting device 3 is formed in a planar convex block shape with a metal material such as high-speed tool steel, and is formed on the lower surface side of the narrow projecting portion 17b. The left and right upper blades 17 a are formed integrally with the male mold 17. The interval between the left and right upper blades 17 a is set so that the left and right upper blades 17 a are in sliding contact with the left and right lower blades 16 a of the female mold 16, respectively.
Further, the left and right upper blades 17a of the male mold 17 are formed so that the cutting edges thereof are inclined, and the cutting device 3 is used when cutting the strip-shaped workpiece W by the cooperative action with the left and right lower blades 16a of the female mold 16. It is devised so that a large load is not applied to the.

そして、前記雄型１７は、雌型１６の挿入穴１６ｂに上下動自在に配設されており、取付け台１５の下面側に固定した流体圧シリンダ１８によって、左右の上刃１７ａが雌型１６の上面よりも上方に位置して左右の上刃１７ａと下刃１６ａとの間に帯状ワークＷを挿入できる待機位置（図３、図４及び図５に示す位置）と左右の上刃１７ａが雌型１６内に位置して帯状ワークＷを切断する切断位置（図１５に示す位置）とに亘って昇降動できるようになっている。
尚、図３に於いて、１７ｃは雄型１７の外面に形成した油溝、２０は雄型１７にボルトにより固定され、雄型１７を覆うカバー体、２１は雄型１７に設けたグリースニップルである。 The male mold 17 is disposed in the insertion hole 16b of the female mold 16 so as to be movable up and down, and the left and right upper blades 17a are fixed to the female mold 16 by a fluid pressure cylinder 18 fixed to the lower surface side of the mounting base 15. A stand-by position (position shown in FIGS. 3, 4 and 5) where the belt-like workpiece W can be inserted between the left and right upper blades 17a and the lower blade 16a and the left and right upper blades 17a are located above the upper surface of It can be moved up and down over a cutting position (position shown in FIG. 15) which is located in the female die 16 and cuts the belt-like workpiece W.
In FIG. 3, 17c is an oil groove formed on the outer surface of the male mold 17, 20 is a cover body fixed to the male mold 17 with bolts and covers the male mold 17, and 21 is a grease nipple provided on the male mold 17. It is.

切断装置３の材料押え機構１９は、図３乃至図５に示す如く、雄型１７の狭い突起部１７ｂの上面に立設した取付け軸１９ａと、取付け軸１９ａに上下動自在に支持され、雄型１７の突起部１７ｂを上方から覆うアルミニウム合金等の金属材によりブロック状に形成された材料押え１９ｂと、取付け軸１９ａの頭部と材料押え１９ｂとの間に介設され、材料押え１９ｂを下方へ附勢する圧縮スプリング１９ｃとから構成されており、雄型１７が待機位置から切断位置へ下降するときに材料押え１９ｂの下端面が雌型１６の上面に配置した帯状ワークＷの上面へ弾性的に当接し、帯状ワークＷを雌型１６の上面側へ押圧固定するようになっている（図１５参照）。   As shown in FIGS. 3 to 5, the material pressing mechanism 19 of the cutting device 3 is supported by a mounting shaft 19a erected on the upper surface of the narrow projection 17b of the male mold 17 and the mounting shaft 19a so as to be movable up and down. A material presser 19b formed in a block shape by a metal material such as an aluminum alloy that covers the protrusion 17b of the mold 17 from above, and a material presser 19b interposed between the head of the mounting shaft 19a and the material presser 19b. The lower end surface of the material presser 19b is disposed on the upper surface of the female mold 16 when the male mold 17 is lowered from the standby position to the cutting position. The belt-shaped work W is pressed against and fixed to the upper surface side of the female die 16 by elastic contact (see FIG. 15).

前記切断用位置決め機構４は、切断装置３の雌型１６に配設されて帯状ワークＷの切断時に帯状ワークＷを所定の位置に位置決めするものであり、図２乃至図４に示す如く、雌型１６の左右の凹部１６ｃに帯状ワークＷのパイロット孔Ｗａと同一ピッチのピン孔１６ｅを雌型１６の幅方向に沿って夫々二列ずつ形成し、各ピン孔１６ｅに帯状ワークＷのパイロット孔Ｗａに着脱自在に嵌合される切断用位置決めピン４ａを突出状態で嵌着することにより構成されている。   The cutting positioning mechanism 4 is disposed on the female die 16 of the cutting device 3 to position the band-shaped workpiece W at a predetermined position when cutting the band-shaped workpiece W. As shown in FIGS. Two rows of pin holes 16e having the same pitch as the pilot holes Wa of the belt-like workpiece W are formed in the left and right recesses 16c of the die 16 along the width direction of the female die 16, and the pilot holes of the belt-like workpiece W are formed in each pin hole 16e. A cutting positioning pin 4a, which is detachably fitted to Wa, is fitted in a protruding state.

即ち、切断用位置決め用ピンは、雌型１６にその幅方向に沿って二列の状態で配置されており、一方の列の切断用位置決めピン４ａのピッチＰと他方の列の切断用位置決めピン４ａのピッチＰ′とを夫々異なるピッチＰ，Ｐ′に設定し、異なるピッチＰ，Ｐ′のパイロット孔Ｗａを形成した二種類の帯状ワークＷの位置決めを行えるようになっている。
又、一方の列の切断用位置決めピン４ａと他方の列の切断用位置決めピン４ａは、何れも雌型１６の左右の下刃１６ａに隣接する切断用位置決めピン４ａが左右の下刃１６ａの刃先から帯状ワークＷのパイロット孔ＷａのピッチＰ，Ｐ′の１／２の寸法だけ離れた位置になるように雌型１６に夫々配置されており、帯状ワークＷを切断用位置決めピン４ａにより位置決めして切断装置３で切断するときに帯状ワークＷが隣接するパイロット孔Ｗａの丁度中間位置で幅方向に切断されるようになっている。
更に、各切断用位置決めピン４ａの上端部は、帯状ワークＷの各パイロット孔Ｗａが切断用位置決めピン４ａへ簡単且つ容易に嵌合されるようにテーパ状に形成されている。 That is, the cutting positioning pins are arranged in two rows along the width direction on the female die 16, and the pitch P of the cutting positioning pins 4a in one row and the cutting positioning pins in the other row are arranged. The pitch P ′ of 4a is set to different pitches P and P ′, and two types of belt-like workpieces W formed with pilot holes Wa of different pitches P and P ′ can be positioned.
The cutting positioning pins 4a in one row and the cutting positioning pins 4a in the other row both have cutting edges 4a adjacent to the left and right lower blades 16a of the female die 16 and the cutting edges of the left and right lower blades 16a. Are disposed on the female die 16 so as to be separated from each other by a half dimension of the pitches P and P ′ of the pilot holes Wa of the strip-shaped workpiece W, and the strip-shaped workpiece W is positioned by the cutting positioning pins 4a. When the cutting device 3 cuts the belt-shaped workpiece W, the strip-shaped workpiece W is cut in the width direction just at an intermediate position between the adjacent pilot holes Wa.
Furthermore, the upper end portion of each cutting positioning pin 4a is formed in a tapered shape so that each pilot hole Wa of the strip-shaped workpiece W can be easily and easily fitted to the cutting positioning pin 4a.

前記第１払出し機構５は、帯状ワークＷが切断用位置決め機構４により位置決めされて切断装置３により切断された後、当該帯状ワークＷを水平姿勢で上方へ持ち上げて切断用位置決めピン４ａから引き抜くものであり、図２、図３及び図５に示す如く、切断用位置決めピン４ａに沿って上下動自在に配設され、切断用位置決めピン４ａに嵌合された帯状ワークＷの裏面側に当接して帯状ワークＷの切断用位置決めピン４ａに嵌合された部分全域を押し上げる左右の払出し板２２と、左右の払出し板２２を切断用位置決めピン４ａに沿って上下動させる複数の駆動部２３とから構成されている。   The first payout mechanism 5 is a mechanism in which, after the band-like workpiece W is positioned by the cutting positioning mechanism 4 and cut by the cutting device 3, the band-like workpiece W is lifted upward in a horizontal posture and pulled out from the cutting positioning pin 4a. 2, 3, and 5, it is arranged so as to be movable up and down along the cutting positioning pins 4 a, and comes into contact with the back side of the belt-like workpiece W fitted to the cutting positioning pins 4 a. Left and right payout plates 22 that push up the entire area of the belt-like workpiece W fitted to the cutting positioning pins 4a, and a plurality of drive units 23 that move the left and right paying plates 22 up and down along the cutting positioning pins 4a. It is configured.

具体的には、左右の払出し板２２は、図２乃至図４に示す如く、黄銅等の金属材により雌型１６の凹部１６ｃに上下動自在に嵌合される矩形の板状に形成されており、当該払出し板２２の中間部分には、払出し板２２を雌型１６の凹部１６ｃに嵌合したときに切断用位置決め機構４の各切断用位置決めピン４ａが挿通される貫通孔２２ａが二列の状態で形成されている。この払出し板２２は、雌型１６の凹部１６ｃ内に収納されて切断用位置決めピン４ａの上端よりも下方に位置して帯状ワークＷの切断用位置決めピン４ａへの嵌合を許容する嵌め込み位置（図３、図４及び図５に示す位置）と切断用位置決めピン４ａの上端と面一になって帯状ワークＷを切断用位置決めピン４ａから押し出す押出し位置（図１６に示す位置）とに亘って上下動するようになっている。   Specifically, as shown in FIGS. 2 to 4, the left and right payout plates 22 are formed in a rectangular plate shape that is fitted into the concave portion 16 c of the female mold 16 so as to be movable up and down by a metal material such as brass. In the middle portion of the payout plate 22, there are two rows of through holes 22a into which the cutting positioning pins 4a of the cutting positioning mechanism 4 are inserted when the payout plate 22 is fitted into the recess 16c of the female die 16. It is formed in the state. The payout plate 22 is housed in the recess 16c of the female die 16 and is positioned below the upper end of the cutting positioning pin 4a so as to allow the belt-like workpiece W to be fitted into the cutting positioning pin 4a ( 3, 4, and 5) and an extrusion position (position shown in FIG. 16) that is flush with the upper end of the cutting positioning pin 4 a and pushes the strip-shaped workpiece W from the cutting positioning pin 4 a. It is designed to move up and down.

一方、各駆動部２３は、図２、図３及び図５に示す如く、雌型１６のピストン穴１６ｄの大径部分にＯリング２３ａを介して摺動自在に嵌合されたピストン２３ｂと、ピストン２３ｂの上面に設けられ、雌型１６のピストン穴１６ｄの小径部分に挿通されて払出し板２２にボルトを介して連結されたピストンロッド２３ｃと、ピストン穴１６ｄの大径部分に配設され、ピストン２３ｂ及びピストンロッド２３ｃを下方へ附勢して払出し板２２を雌型１６の凹部１６ｃ内（嵌め込み位置）に位置させる復帰用の圧縮スプリング２３ｄと、雌型１６のピストン穴１６ｄの大径部分に螺着され、ピストン２３ｂ等を抜け止めすると共に、ピストン２３ｂの下面側へ作動流体（圧縮空気）を供給する作動流体用通路２３ｅ′を形成したプラグ２３ｅとから夫々構成されており、作動流体供給源からの作動流体をピストン穴１６ｄへ供給すると、ピストン２３ｂ、ピストンロッド２３ｃ及び払出し板２２が圧縮スプリング２３ｄの弾性力に抗して上昇し、払出し板２２が切断用位置決めピン４ａの上端と面一になる押出し位置（図１６に示す位置）になり、又、作動流体の供給を停止すると、圧縮スプリング２３ｄの弾性力によりピストン２３ｂ、ピストンロッド２３ｃ及び払出し板２２が下降し、払出し板２２が雌型１６の凹部１６ｃ内に収納されて切断用位置決めピン４ａの上端よりも下方に位置する嵌め込み位置（図３、図４及び図５に示す位置）になるように制御されている。   On the other hand, as shown in FIGS. 2, 3 and 5, each drive unit 23 includes a piston 23b slidably fitted to a large diameter portion of the piston hole 16d of the female die 16 via an O-ring 23a, A piston rod 23c provided on the upper surface of the piston 23b, inserted into the small diameter portion of the piston hole 16d of the female die 16 and connected to the discharge plate 22 via a bolt, and disposed on the large diameter portion of the piston hole 16d; A return compression spring 23d for biasing the piston 23b and the piston rod 23c downward to position the discharge plate 22 in the recess 16c (fitting position) of the female die 16, and a large diameter portion of the piston hole 16d of the female die 16 And a plug 23e formed with a working fluid passage 23e 'for supplying the working fluid (compressed air) to the lower surface side of the piston 23b. When the working fluid from the working fluid supply source is supplied to the piston hole 16d, the piston 23b, the piston rod 23c, and the discharge plate 22 rise against the elastic force of the compression spring 23d, and the discharge plate 22 Becomes the pushing position (position shown in FIG. 16) which is flush with the upper end of the positioning pin 4a for cutting, and when the supply of the working fluid is stopped, the piston 23b, the piston rod 23c and the discharge are caused by the elastic force of the compression spring 23d. The plate 22 is lowered, and the payout plate 22 is housed in the recess 16c of the female die 16 and is in a fitting position (position shown in FIGS. 3, 4 and 5) located below the upper end of the cutting positioning pin 4a. It is controlled to become.

前記クランプ機構８は、図６乃至図８に示す如く、作業用テーブル１の上方位置に前後方向へ水平移動自在に配設され、二つの帯状ワークＷの突合せ部近傍上面を保持する上部治具６と、作業用テーブル１の凹所１ａに上下動自在に収納され、下板１ｃの下面側に固定した流体圧シリンダ２４により上下動されて上部治具６との間で両帯状ワークＷの突合せ部近傍を挾持する下部治具７とから構成されており、上部治具６を前進させて下部治具７の上方位置へ移動させた後、下部治具７を上昇させることによって、両帯状ワークＷの突合せ部近傍を上部治具６と下部治具７との間で緊密且つ強固に挾持固定することができるようになっている。   As shown in FIGS. 6 to 8, the clamp mechanism 8 is disposed above the work table 1 so as to be horizontally movable in the front-rear direction, and holds the upper surface in the vicinity of the abutting portion of the two strip-shaped workpieces W. 6 and the recess 1a of the work table 1 are movably moved up and down, and are moved up and down by a fluid pressure cylinder 24 fixed to the lower surface side of the lower plate 1c. It is composed of a lower jig 7 that holds the vicinity of the butting portion. After the upper jig 6 is moved forward and moved to an upper position of the lower jig 7, the lower jig 7 is lifted to thereby form both bands. The vicinity of the butting portion of the workpiece W can be tightly and firmly held and fixed between the upper jig 6 and the lower jig 7.

具体的には、クランプ機構８の上部治具６は、図７に示す如く、作業用テーブル１の上方位置に前後方向へ移動自在に配設した支持フレーム２５の下面に僅かの間隙を空けて対向状に固定された銅材製の左右の板状の上部クランプ板６ａから成り、主にアークの拡がりを遮断して両帯状ワークＷの突合せ部にアークエネルギーを集中的に与えるものである。
又、左右の上部クランプ板６ａは、その先端部が薄肉の板状に形成されており、薄肉の先端部底面でもって帯状ワークＷの突合せ部近傍上面を保持するようになっている。 Specifically, as shown in FIG. 7, the upper jig 6 of the clamp mechanism 8 is provided with a slight gap on the lower surface of the support frame 25 which is disposed above the work table 1 so as to be movable in the front-rear direction. It consists of left and right plate-like upper clamp plates 6a made of copper material fixed in opposition, and mainly blocks arc spreading and concentrates arc energy on the abutting portions of both belt-like workpieces W.
Further, the left and right upper clamp plates 6a are formed in a thin plate shape at the tip, and the upper surface in the vicinity of the abutting portion of the belt-like workpiece W is held by the bottom surface of the thin tip.

一方、クランプ機構８の下部治具７は、図６乃至図８に示す如く、作業用テーブル１の凹所１ａに上下動自在に配設され、下板１ｃの下面側に固定した流体圧シリンダ２４に連結された下部治具本体７ａと、下部治具本体７ａの上面にボルトにより固定された位置決め治具７ｂと、位置決め治具７ｂの上面に配設され、帯状ワークＷを裏面側から支持する下部クランプ板７ｃとから構成されており、流体圧シリンダ２４の短縮時には、下部治具本体７ａ、位置決め治具７ｂ及び下部クランプ板７ｃが作業用テーブル１の凹所１ａ内に収納されて下部クランプ板７ｃの上面が作業用テーブル１の上面と面一になる非挾持位置（図７及び図８に示す位置）を取り、又、流体圧シリンダ２４の伸長時には、下部治具本体７ａ、位置決め治具７ｂ及び下部クランプ板７ｃが一緒に上昇し、下部クランプ板７ｃと上部クランプ板６ａとの間での両帯状ワークＷの突合せ部近傍を挾持する挾持位置（図１８に示す位置）を取り得るように構成されている。   On the other hand, as shown in FIGS. 6 to 8, the lower jig 7 of the clamp mechanism 8 is disposed in the recess 1a of the work table 1 so as to be movable up and down, and is fixed to the lower surface side of the lower plate 1c. 24, a lower jig main body 7a connected to 24, a positioning jig 7b fixed to the upper surface of the lower jig main body 7a with a bolt, and an upper surface of the positioning jig 7b to support the belt-like workpiece W from the back side. When the fluid pressure cylinder 24 is shortened, the lower jig body 7a, the positioning jig 7b, and the lower clamp plate 7c are housed in the recess 1a of the work table 1 and the lower part. A non-holding position (position shown in FIGS. 7 and 8) where the upper surface of the clamp plate 7c is flush with the upper surface of the work table 1 is taken, and when the fluid pressure cylinder 24 is extended, the lower jig body 7a is positioned. Jig 7b and The part clamp plate 7c rises together, and is configured to be able to take a gripping position (position shown in FIG. 18) for gripping the vicinity of the abutting part of the belt-like workpiece W between the lower clamp plate 7c and the upper clamp plate 6a. Has been.

前記下部治具本体７ａは、図６及び図８に示す如く、アルミニウム合金等の金属材によりブロック状に形成されており、その中央部付近には、位置決め治具７ｂが嵌合される収納溝７ａ′が下部治具本体７ａの幅方向に沿って形成されていると共に、下部治具本体７ａの収納溝７ａ′に対向する下面には、第２払出し機構１１の駆動部２７を形成するピストン２７ｂ及びピストンロッド２７ｃが上下方向へ摺動自在に嵌合される複数の段付きのピストン穴７ａ″が夫々形成されている。
又、位置決め治具７ｂは、図７に示す如く、アルミニウム合金等の金属材に横長の長方形の板状に形成されており、位置決め治具７ｂの前後方向の中間部には突合せ用位置決め機構９の突合せ用位置決めピン９ａが嵌着されるピン孔７ｂ′が形成されている。このピン孔７ｂ′は、位置決め治具７ｂの幅方向に沿って二列の状態で形成されており、一方の列のピン孔７ｂ′のピッチＰと他方の列のピン孔７ｂ′のピッチＰ′とが夫々異なるピッチＰ，Ｐ′に設定されている。
更に、下部クランプ板７ｃは、図６及び図７に示す如く、銅材により横長の長方形の板状に形成されており、下部クランプ板７ｃの前後方向の中間部には、下部クランプ板７ｃを位置決め治具７ｂの上面に配置したときに突合せ用位置決め機構９の突合せ用位置決めピン９ａが挿通される貫通孔７ｃ′が二列の状態で形成されている。この下部クランプ板７ｃは、帯状ワークＷを突合せ溶接する際に余分な熱を吸収してビードの溶け落ちや穴あき、帯状ワークＷの熱歪等を防止すると共に、帯状ワークＷの突合せ部の裏側にシールドガスを流して溶接部の酸化を防止するものであり、下部クランプ板７ｃの中央部には、帯状ワークＷの幅方向に沿う浅溝７ｃ″を形成することによって、溶接金属の溶け落ち防止と裏側のシールドを行うバックバーとしての機能を有する部分が形成されることになる。 As shown in FIGS. 6 and 8, the lower jig body 7a is formed in a block shape from a metal material such as an aluminum alloy, and in the vicinity of the center thereof, a storage groove into which the positioning jig 7b is fitted. 7a 'is formed along the width direction of the lower jig body 7a, and a piston that forms the drive portion 27 of the second payout mechanism 11 on the lower surface of the lower jig body 7a facing the storage groove 7a'. A plurality of stepped piston holes 7a ″ are formed in which the piston rod 27c and the piston rod 27c are slidably fitted in the vertical direction.
Further, as shown in FIG. 7, the positioning jig 7b is formed in a horizontally-long rectangular plate shape on a metal material such as an aluminum alloy. The positioning jig 7b has a butting positioning mechanism 9 at an intermediate portion in the front-rear direction. A pin hole 7b 'into which the butting positioning pin 9a is fitted is formed. The pin holes 7b 'are formed in two rows along the width direction of the positioning jig 7b. The pitch P of the pin holes 7b' in one row and the pitch P of the pin holes 7b 'in the other row. 'Is set to different pitches P and P'.
Further, as shown in FIGS. 6 and 7, the lower clamp plate 7c is formed in a horizontally-long rectangular plate shape with a copper material, and the lower clamp plate 7c is provided at an intermediate portion in the front-rear direction of the lower clamp plate 7c. Through holes 7c 'through which the butting positioning pins 9a of the butting positioning mechanism 9 are inserted when arranged on the upper surface of the positioning jig 7b are formed in two rows. The lower clamp plate 7c absorbs excess heat when the band-shaped workpieces W are butt-welded to prevent the beads from being melted or perforated, the thermal distortion of the band-shaped workpieces W, and the like. A shield gas is flowed to the back side to prevent oxidation of the welded portion, and a shallow groove 7c ″ along the width direction of the strip-shaped workpiece W is formed at the center of the lower clamp plate 7c to melt the weld metal. A portion having a function as a back bar for preventing dropping and shielding on the back side is formed.

前記突合せ用位置決め機構９は、クランプ機構８の下部治具７に配設されて帯状ワークＷの突合せ時に帯状ワークＷの突合せ部を溶接位置（溶接用トーチ１０ａの下方位置）へ位置決めするものであり、図７に示す如く、位置決め治具７ｂに形成した二列のピン孔７ｂ′に帯状ワークＷのパイロット孔Ｗａに着脱自在に嵌合される突合せ用位置決めピン９ａを突出状態で嵌着することにより構成されている。   The abutting positioning mechanism 9 is disposed on the lower jig 7 of the clamp mechanism 8 and positions the abutting portion of the belt-like workpiece W at the welding position (a position below the welding torch 10a) when the belt-like workpiece W is abutted. 7. As shown in FIG. 7, abutting positioning pins 9a that are detachably fitted into pilot holes Wa of the strip-like workpiece W are fitted in the protruding state into two rows of pin holes 7b 'formed in the positioning jig 7b. It is constituted by.

即ち、突合せ用位置決めピン９ａは、図６及び図７に示す如く、下部治具７にその幅方向に沿って二列の状態で配置されており、一方の列の突合せ用位置決めピン９ａのピッチＰと他方の列の突合せ用位置決めピン９ａのピッチＰ′とを夫々異なるピッチＰ，Ｐ′に設定し、異なるピッチＰ，Ｐ′のパイロット孔Ｗａを形成した二種類の帯状ワークＷの位置決めを行えるようになっている。
又、一方の列の突合せ用位置決めピン９ａと他方の列の突合せ用位置決めピン９ａは、何れも下部クランプ板７ｃの浅溝７ｃ″に隣接する突合せ用位置決めピン９ａが浅溝７ｃ″から帯状ワークＷのパイロット孔Ｗａのピッチの１／２の寸法だけ離れた位置になるように位置決め治具７ｂに夫々配置されており、二つの帯状ワークＷを突合せ用位置決めピン９ａにより位置決めしてその切断端面同士を突き合せたときにその突合せ部が下部クランプ板７ｃの浅溝７ｃ″上で突き合されるようになっている。
更に、各突合せ用位置決めピン９ａの上端部は、帯状ワークＷの各パイロット孔Ｗａが切断用位置決めピン４ａへ簡単且つ容易に嵌合されるようにテーパ状に形成されている。 That is, as shown in FIGS. 6 and 7, the butting positioning pins 9a are arranged in two rows along the width direction of the lower jig 7, and the pitch of the butting positioning pins 9a in one row is as follows. P and the pitch P ′ of the butt positioning pins 9a in the other row are set to different pitches P and P ′, respectively, and positioning of the two types of belt-like workpieces W formed with pilot holes Wa of different pitches P and P ′ is performed. It can be done.
The butt positioning pins 9a in one row and the butt positioning pins 9a in the other row both have a butt positioning pin 9a adjacent to the shallow groove 7c ″ of the lower clamp plate 7c. Positioned on the positioning jig 7b so as to be separated from each other by a half dimension of the pitch of the pilot holes Wa of W, the two strip-shaped workpieces W are positioned by the butting positioning pins 9a, and the cut end faces thereof When abutting each other, the abutting portion is abutted on the shallow groove 7c ″ of the lower clamp plate 7c.
Further, the upper end portion of each butting positioning pin 9a is formed in a tapered shape so that each pilot hole Wa of the strip-shaped workpiece W can be easily and easily fitted to the cutting positioning pin 4a.

前記溶接装置１０は、作業用テーブル１の上方位置に前後方向へ水平移動自在に配設されており、切断された帯状ワークＷの切断端面同士を突合せ溶接するものである。この溶接装置１０には、従来公知のＧＴＡ溶接装置が使用されている。
即ち、溶接装置１０は、先端部からアルゴンガス等のシールドガスを流すと共に、タングステン電極棒を挿着した溶接用トーチ１０ａと、溶接用トーチ１０ａを昇降動させるサーボモータ等から成るトーチ上下動駆動装置（図示省略）等を備えており、帯状ワークＷの突合せ部を突合せ溶接する際に前方へ自動的に引き出され、溶接用トーチ１０ａの先端が設定位置に保持され且つ溶接用トーチ１０ａが所定の速度で帯状ワークＷの突合せ部に沿って直線移動するようになっている。 The welding device 10 is disposed above the work table 1 so as to be horizontally movable in the front-rear direction, and butt welds the cut end faces of the cut strip-shaped workpiece W. A conventionally known GTA welding apparatus is used for the welding apparatus 10.
That is, the welding apparatus 10 is a torch vertical drive comprising a welding torch 10a with a tungsten electrode rod inserted and a servo motor for moving the welding torch 10a up and down while flowing a shielding gas such as argon gas from the tip. Provided with an apparatus (not shown), etc., automatically pulled forward when the butt portion of the belt-like workpiece W is butt welded, the tip of the welding torch 10a is held at the set position, and the welding torch 10a is predetermined. The linear movement is made along the abutting portion of the belt-like workpiece W at a speed of.

尚、この実施の形態に於いては、溶接装置１０には、ＧＴＡ溶接装置を使用しているが、他の実施の形態に於いては、溶接装置１０にプラズマ溶接装置やレーザー溶接装置を使用するようにしても良い。
又、この実施の形態に於いては、図６に示す如く、下部クランプ板７ｃの前後位置に銅材製のＴ字型のタブ材２６を夫々配設し、一方のタブ材２６に溶接用トーチ１０ａを臨ませてこのタブ材２６とタングステン電極棒との間にアークを発生させ、この初期アークが安定した状態になってから溶接用トーチ１０ａをワークの突合せ部に沿って移動させた後、他方のタブ材２６の上で通電を停止することが行われている。このようにすれば、ワークＰの突合せ部を安定したアーク状態で突合せ溶接することができるうえ、ワークＰの溶接開始部及び溶接終了部に溶け落ち等の溶接欠陥の無い突合せ溶接を行えることになる。 In this embodiment, a GTA welding apparatus is used as the welding apparatus 10, but in other embodiments, a plasma welding apparatus or a laser welding apparatus is used as the welding apparatus 10. You may make it do.
Further, in this embodiment, as shown in FIG. 6, T-shaped tab members 26 made of copper are respectively disposed at the front and rear positions of the lower clamp plate 7c, and one tab member 26 is welded. After the torch 10a is faced and an arc is generated between the tab member 26 and the tungsten electrode rod, after the initial arc becomes stable, the welding torch 10a is moved along the butt portion of the workpiece. The energization is stopped on the other tab member 26. In this way, the butt portion of the workpiece P can be butt welded in a stable arc state, and butt welding without welding defects such as burn-out can be performed at the welding start portion and the welding end portion of the workpiece P. Become.

前記第２払出し機構１１は、帯状ワークＷが突合せ用位置決め機構９により位置決めされて溶接装置１０により突合せ溶接された後、当該帯状ワークＷを水平姿勢で上方へ持ち上げて突合せ用位置決めピン９ａから引き抜くものであり、図６及び図８に示す如く、下部治具７の位置決め治具７ｂの上面に突合せ用位置決めピン９ａに沿って上下動自在に配設され、突合せ用位置決めピン９ａに嵌合された帯状ワークＷの裏面側に当接して帯状ワークＷの突合せ用位置決めピン９ａに嵌合された部分全域を押し上げるクランプ機構８の下部治具７を形成する下部クランプ板７ｃと、下部クランプ板７ｃを突合せ用位置決めピン９ａに沿って上下動させる複数の駆動部２７とから構成されている。   After the belt-like workpiece W is positioned by the butt positioning mechanism 9 and butt-welded by the welding device 10, the second payout mechanism 11 lifts the belt-like workpiece W upward in a horizontal posture and pulls it out from the butt positioning pin 9a. 6 and 8, it is arranged on the upper surface of the positioning jig 7b of the lower jig 7 so as to be movable up and down along the butting positioning pin 9a, and is fitted to the butting positioning pin 9a. A lower clamp plate 7c that forms a lower jig 7 of the clamp mechanism 8 that abuts on the back surface side of the belt-like workpiece W and pushes up the entire area of the belt-like workpiece W fitted to the butting positioning pin 9a. And a plurality of driving portions 27 that move the boss up and down along the butting positioning pins 9a.

具体的には、下部クランプ板７ｃは、図７に示す如く、突合せ用位置決め機構９の突合せ用位置決めピン９ａに上下方向へスライド自在に嵌合されており、位置決め治具７ｂの上面に密着されて突合せ用位置決めピン９ａの上端よりも下方に位置して帯状ワークＷの突合せ用位置決めピン９ａへの嵌合を許容する嵌め込み位置（図７に示す位置）と突合せ用位置決めピン９ａの上端と面一になって帯状ワークＷを突合せ用位置決めピン９ａから押し出す押出し位置（図１９に示す位置）とに亘って上下動するようになっている。   Specifically, as shown in FIG. 7, the lower clamp plate 7c is fitted to the butting positioning pin 9a of the butting positioning mechanism 9 so as to be slidable in the vertical direction, and is in close contact with the upper surface of the positioning jig 7b. And a fitting position (position shown in FIG. 7) that is positioned below the upper end of the butting positioning pin 9a and allows the band-shaped workpiece W to be fitted into the butting positioning pin 9a, and an upper end and a surface of the butting positioning pin 9a. The belt-like workpiece W is moved up and down over the push-out position (position shown in FIG. 19) where the belt-like work W is pushed out from the butt positioning pin 9a.

一方、各駆動部は、図６及び図８に示す如く、下部治具本体７ａのピストン穴７ａ″の大径部分にＯリング２７ａを介して摺動自在に嵌合されたピストン２７ｂと、ピストン２７ｂの上面に設けられ、下部治具本体７ａのピストン穴７ａ″の小径部分及び位置決め治具７ｂに挿通されて下部クランプ板７ｃにボルトを介して連結されたピストンロッド２７ｃと、ピストン穴７ａ″の大径部分に配設され、ピストン２７ｂ及びピストンロッド２７ｃを下方へ附勢して下部クランプ板７ｃを位置決め治具７ｂの上面へ密着させる復帰用の圧縮スプリング２７ｄと、下部治具本体７ａのピストン穴７ａ″の大径部分に螺着され、ピストン２７ｂ等を抜け止めすると共に、ピストン２７ｂの下面側へ作動流体（圧縮空気）を供給する作動流体用通路２７ｅ′を形成したプラグ２７ｅとから夫々構成されており、作動流体供給源からの作動流体をピストン穴７ａ″へ供給すると、ピストン２７ｂ、ピストンロッド２７ｃ及び下部クランプ板７ｃが圧縮スプリング２７ｄの弾性力に抗して上昇し、下部クランプ板７ｃが突合せ用位置決めピン９ａの上端よりも上方に位置する押出し位置（図１９に示す位置）になり、又、作動流体の供給を停止すると、圧縮スプリング２７ｄの弾性力によりピストン２７ｂ、ピストンロッド２７ｃ及び下部クランプ板７ｃが下降し、下部クランプ板７ｃが位置決め治具７ｂの上面に密着して突合せ用位置決めピン９ａの上端よりも下方に位置する嵌め込み位置（図８に示す位置）になるように制御されている。   On the other hand, as shown in FIGS. 6 and 8, each drive unit includes a piston 27b slidably fitted to a large diameter portion of the piston hole 7a ″ of the lower jig body 7a through an O-ring 27a, A piston rod 27c provided on the upper surface of 27b, inserted through the small diameter portion of the piston hole 7a ″ of the lower jig body 7a and the positioning jig 7b and connected to the lower clamp plate 7c via a bolt, and the piston hole 7a ″. A return compression spring 27d for biasing the piston 27b and the piston rod 27c downward to bring the lower clamp plate 7c into close contact with the upper surface of the positioning jig 7b, and a lower jig body 7a. A working fluid passage 2 that is screwed into the large-diameter portion of the piston hole 7a ″ to prevent the piston 27b and the like from coming off and supplies working fluid (compressed air) to the lower surface side of the piston 27b. and a plug 27e formed with e ′. When the working fluid from the working fluid supply source is supplied to the piston hole 7a ″, the piston 27b, the piston rod 27c and the lower clamp plate 7c are elastically applied by the compression spring 27d. When the lower clamp plate 7c is in the pushing position (position shown in FIG. 19) located above the upper end of the butting positioning pin 9a, and the supply of the working fluid is stopped, the compression spring 27d Due to the elastic force, the piston 27b, the piston rod 27c and the lower clamp plate 7c are lowered, and the lower clamp plate 7c is brought into close contact with the upper surface of the positioning jig 7b and is positioned below the upper end of the butting positioning pin 9a ( The position is controlled to be the position shown in FIG.

前記圧延装置１２は、図１９及び図１０に示す如く、作業用テーブル１の下面側に取り付けた水平姿勢の圧延台取付け板２８と、圧延台取付け板２８の上面に固定したブロック状の圧延台２９と、圧延台２９の上面側に取り付けたスライド板３０と、圧延台取付け板２８の下面側に連結金具３１及び圧延用シリンダ取付け板３２を介して取り付けた流体圧シリンダ３３と、作業用テーブル１の上面側に配設された圧延本体３４と、圧延用シリンダ取付け板３２及び圧延本体３４に挿通されて両者を連結する連結シャフト３５と、圧延本体３４の先端部下面に取り付けられ、圧延台２９に圧接可能な加圧爪３６とから構成されており、圧延本体３４及び加圧爪３６が上昇している状態で圧延台２９の上面に帯状ワークＷの溶接部を位置せしめ、この状態で流体圧シリンダ３３により圧延本体３４及び加圧爪３６を下降させ、帯状ワークＷの溶接部を圧延台２９と加圧爪３６により加圧することにより、帯状ワークＷの溶接部を圧延してその厚みや組織を均一化することができるようになっている。   As shown in FIGS. 19 and 10, the rolling device 12 includes a horizontal rolling table mounting plate 28 attached to the lower surface side of the work table 1 and a block-shaped rolling table fixed to the upper surface of the rolling table mounting plate 28. 29, a slide plate 30 attached to the upper surface side of the rolling table 29, a fluid pressure cylinder 33 attached to the lower surface side of the rolling table attachment plate 28 via a coupling fitting 31 and a rolling cylinder attachment plate 32, and a work table. 1, a rolling body 34 disposed on the upper surface side, a connecting cylinder 35 that is inserted through and connected to the rolling cylinder mounting plate 32 and the rolling body 34, and is attached to the lower surface of the front end of the rolling body 34. 29, and a welding portion of the strip-shaped workpiece W is positioned on the upper surface of the rolling table 29 with the rolling main body 34 and the pressing claw 36 raised. In this state, the rolling main body 34 and the pressure claw 36 are lowered by the fluid pressure cylinder 33, and the welded portion of the band-shaped workpiece W is pressed by the rolling table 29 and the pressure claw 36, thereby rolling the welded portion of the band-shaped workpiece W. The thickness and structure can be made uniform.

前記圧延用位置決め機構１３は、帯状ワークＷの溶接部の圧延加工時に帯状ワークＷを位置決めするものであり、図９及び図１０に示す如く、圧延装置１２の圧延台２９に各帯状ワークＷのパイロット孔Ｗａと同一ピッチのピン孔２９ａを圧延台２９の幅方向に沿って夫々二列形成し、各ピン孔２９ａに帯状ワークＷのパイロット孔Ｗａに着脱自在に嵌合される圧延用位置決めピン１３ａを突出状態で嵌着することにより構成されている。
即ち、圧延用位置決めピン１３ａは、圧延台２９にその幅方向に沿って二列の状態で配置されており、一方の列の圧延用位置決めピン１３ａのピッチＰと他方の列の圧延用位置決めピン１３ａのピッチＰ′とを夫々異なるピッチＰ，Ｐ′に設定し、異なるピッチＰ，Ｐ′のパイロット孔Ｗａを形成した二種類の帯状ワークＷの位置決めを行えるようになっている。
又、一方の列の圧延用位置決めピン１３ａと他方の列の圧延用位置決めピン１３ａは、帯状ワークＷの溶接部を圧延加工した後、帯状ワークＷを圧延用位置決めピン１３ａから簡単且つ容易に引き抜けるように夫々二本宛設けられている。
更に、各圧延用位置決めピン１３ａの上端部は、帯状ワークＷの各パイロット孔Ｗａが圧延用位置決めピン１３ａへ簡単且つ容易に嵌合されるようにテーパ状に形成されている。 The positioning mechanism 13 for rolling positions the band-shaped workpiece W during the rolling process of the welded portion of the band-shaped workpiece W. As shown in FIGS. 9 and 10, the strip-shaped workpiece W is placed on the rolling table 29 of the rolling device 12. Two pin holes 29a having the same pitch as the pilot holes Wa are formed along the width direction of the rolling table 29, and the rolling positioning pins are detachably fitted to the pilot holes Wa of the strip-shaped workpiece W in the respective pin holes 29a. It is configured by fitting 13a in a protruding state.
That is, the positioning pins for rolling 13a are arranged in two rows along the width direction on the rolling table 29, and the pitch P of the positioning pins for rolling 13a in one row and the positioning pins for rolling in the other row. The pitch P ′ of 13a is set to different pitches P and P ′, respectively, so that the two types of belt-like workpieces W formed with pilot holes Wa of different pitches P and P ′ can be positioned.
Further, the rolling positioning pin 13a in one row and the rolling positioning pin 13a in the other row can easily and easily pull out the belt-like workpiece W from the rolling positioning pin 13a after rolling the welded portion of the belt-like workpiece W. As such, they are each addressed to two.
Furthermore, the upper end portion of each rolling positioning pin 13a is formed in a tapered shape so that each pilot hole Wa of the strip-shaped workpiece W can be easily and easily fitted to the rolling positioning pin 13a.

前記検査用ゲージ１４は、図１に示す如く、溶接装置１０の斜め上方位置で且つ圧延装置１２の上方位置に配設されて突合せ溶接により接合された帯状ワークＷのパイロット孔Ｗａのピッチを検査するものであり、検査台３７と、検査台３７に帯状ワークＷのパイロット孔Ｗａのピッチと同一ピッチで配置されて各パイロット孔Ｗａに夫々着脱自在に嵌合される複数本の検査用ピン３８と、検査用ピン３８に嵌合された帯状ワークＷを検査用ピン３８に沿って移動させて検査用ピン３８から押し出す取出し機構３９とから構成されている。   As shown in FIG. 1, the inspection gauge 14 is disposed at an oblique upper position of the welding apparatus 10 and an upper position of the rolling apparatus 12 and inspects the pitch of the pilot holes Wa of the strip-shaped workpiece W joined by butt welding. An inspection table 37 and a plurality of inspection pins 38 that are arranged on the inspection table 37 at the same pitch as the pilot holes Wa of the strip-shaped workpiece W and are detachably fitted to the pilot holes Wa, respectively. And a take-out mechanism 39 that moves the belt-like workpiece W fitted to the inspection pin 38 along the inspection pin 38 and pushes it out from the inspection pin 38.

具体的には、検査台３７は、図１１乃至図１３に示す如く、アルミニウム合金等の金属材によりブロック状に形成されており、当該検査台３７の前後方向の中間部分には検査用ピン３８が嵌着されるピン孔３７ａが二列の状態で形成されている。
又、検査用ピン３８は、検査台３７に二列の状態で配置されており、一方の列の検査用ピン３８のピッチＰと他方の列の検査用ピン３８のピッチＰ′とを夫々異なるピッチＰ，Ｐ′に設定し、異なるピッチＰ，Ｐ′のパイロット孔Ｗａを形成した二種類の帯状ワークＷの検査を行えるようになっている。
更に、取出し機構３９は、検査台３７の上面側に配設されて検査用ピン３８に上下方向へスライド自在に支持され、検査用ピン３８が挿通される二列の貫通孔３９ａ′を形成した取出し板３９ａと、取出し板３９ａを検査用ピン３８から抜け止めする抜け止めピン３９ｂと、検査台３７と取出し板３９ａとの間に介設され、取出し板３９ａを上昇位置に附勢保持する圧縮スプリング３９ｃとから構成されており、前記取出し板３９ａが、検査用ピン３８の上端よりも下方に位置して検査用ピン３８に帯状ワークＷのパイロット孔Ｗａが嵌合される嵌め込み位置（図２２に示す位置）と帯状ワークＷを検査用ピン３８に沿って押し上げて検査用ピン３８から取り出す取出し位置（図１２及び図１３に示す位置）とに亘って上下動自在となっている。 Specifically, as shown in FIGS. 11 to 13, the inspection table 37 is formed in a block shape from a metal material such as an aluminum alloy, and an inspection pin 38 is provided at an intermediate portion in the front-rear direction of the inspection table 37. The pin holes 37a into which are inserted are formed in two rows.
The inspection pins 38 are arranged in two rows on the inspection table 37, and the pitch P of the inspection pins 38 in one row is different from the pitch P 'of the inspection pins 38 in the other row. Two types of strip-shaped workpieces W formed with pilot holes Wa having different pitches P and P ′ can be inspected by setting the pitches P and P ′.
Further, the take-out mechanism 39 is disposed on the upper surface side of the inspection table 37 and is supported by the inspection pins 38 so as to be slidable in the vertical direction, thereby forming two rows of through holes 39a ′ through which the inspection pins 38 are inserted. A compression plate 39a, a retaining pin 39b for retaining the extraction plate 39a from the inspection pin 38, and a compression member interposed between the inspection table 37 and the extraction plate 39a to bias the extraction plate 39a to the raised position. The spring 39c is configured so that the take-out plate 39a is positioned below the upper end of the inspection pin 38, and the fitting position (FIG. 22) where the pilot hole Wa of the belt-like workpiece W is fitted to the inspection pin 38. ) And the take-out position (position shown in FIGS. 12 and 13) that pushes the belt-like workpiece W along the inspection pin 38 and removes it from the inspection pin 38. .

次に、上述した帯状ワークＷの突合せ接合装置を用いてパイロット孔Ｗａを形成したリードフレーム等の先行の帯状ワークＷの後端に同じくパイロット孔Ｗａを形成したリードフレーム等の後行の帯状ワークＷの先端を突合せ溶接に接合する場合やパイロット孔Ｗａを形成したリードフレーム等の帯状ワークＷの不良部分を切断除去して帯状ワークＷの切断端面同士を突合せ溶接により接合する場合について説明する。
尚、溶接電流、アーク長、不活性ガスの供給量、溶接用トーチ１０ａの走行速度、タングステン電極棒の先端形状等の溶接条件は、帯状ワークＷの材質、板厚、幅等に応じて最適の条件下に設定されていることは勿論である。 Next, a succeeding strip-shaped workpiece such as a lead frame in which a pilot hole Wa is also formed at the rear end of the preceding strip-shaped workpiece W such as a lead frame in which a pilot hole Wa is formed using the butt joining apparatus for the strip-shaped workpiece W described above. A case where the tip of W is joined to butt welding, or a case where a defective portion of the belt-like workpiece W such as a lead frame having a pilot hole Wa is cut and removed and the cut end surfaces of the belt-like workpiece W are joined by butt welding will be described.
The welding conditions such as welding current, arc length, supply amount of inert gas, traveling speed of the welding torch 10a, tip shape of the tungsten electrode rod, etc. are optimal according to the material, plate thickness, width, etc. of the strip workpiece W. Of course, it is set under the following conditions.

先行の帯状ワークＷの後端部、後行の帯状ワークＷの先端部、或いは帯状ワークＷの不良部分を切断用位置決め機構４により位置決めし、この状態で先行の帯状ワークＷの後端部、後行の帯状ワークＷの先端部、或いは帯状ワークＷの不良部分を切断装置３により幅方向に一直線状に切断する。
即ち、先行の帯状ワークＷの後端、後行の帯状ワークＷの先端、或いは帯状ワークＷの不良部分が切断装置３の雌型１６の左右の下刃１６ａ間に位置するように各帯状ワークＷのパイロット孔Ｗａを切断用位置決め機構４の一方の列の切断用位置決めピン４ａに嵌め込んで帯状ワークＷを雌型１６上で位置決めし、この状態で上昇位置にある切断装置３の雄型１７を流体圧シリンダ１８により下降位置へ下降させる（図１４及び図１５参照）。
そうすると、切断装置３の左右の上刃１７ａ及び下刃１６ａにより先行の帯状ワークＷの後端部、後行の帯状ワークＷの先端部、或いは帯状ワークＷの不良部分が幅方向に切断除去される。このとき、先行の帯状ワークＷの後端部、後行の帯状ワークＷの先端部、帯状ワークＷの不良部分は、帯状ワークＷの切断端と切断端に隣接するパイロット孔Ｗａとの距離がパイロット孔Ｗａのピッチの１／２の寸法になるように切断される。又、帯状ワークＷを切断するときには、帯状ワークＷが材料押え機構１９により雌型１６の上面側へ押圧固定されているため、帯状ワークＷの切断をより正確且つ確実に行える。 The rear end portion of the preceding strip-shaped workpiece W, the leading end portion of the following strip-shaped workpiece W, or the defective portion of the strip-shaped workpiece W is positioned by the cutting positioning mechanism 4, and in this state, the rear end portion of the preceding strip-shaped workpiece W, The leading end portion of the subsequent strip-shaped workpiece W or the defective portion of the strip-shaped workpiece W is cut in a straight line in the width direction by the cutting device 3.
That is, each belt-like workpiece is arranged such that the rear end of the preceding belt-like workpiece W, the tip of the succeeding belt-like workpiece W, or a defective portion of the belt-like workpiece W is positioned between the left and right lower blades 16a of the female die 16 of the cutting device 3. The pilot hole Wa of W is fitted into the cutting positioning pins 4a of one row of the cutting positioning mechanism 4 to position the belt-like workpiece W on the female die 16, and the male die of the cutting device 3 in the raised position in this state. 17 is lowered to the lowered position by the fluid pressure cylinder 18 (see FIGS. 14 and 15).
Then, the rear end portion of the preceding strip-shaped workpiece W, the leading end portion of the following strip-shaped workpiece W, or the defective portion of the strip-shaped workpiece W is cut and removed in the width direction by the left and right upper blades 17a and the lower blade 16a of the cutting device 3. The At this time, the rear end portion of the preceding strip-shaped workpiece W, the leading end portion of the following strip-shaped workpiece W, and the defective portion of the strip-shaped workpiece W have a distance between the cut end of the strip-shaped workpiece W and the pilot hole Wa adjacent to the cut end. Cutting is performed so that the size of the pilot holes Wa is ½ of the pitch. Further, when cutting the strip-shaped workpiece W, the strip-shaped workpiece W is pressed and fixed to the upper surface side of the female die 16 by the material pressing mechanism 19, so that the strip-shaped workpiece W can be cut more accurately and reliably.

先行の帯状ワークＷの後端部、後行の帯状ワークＷの先端部、或いは帯状ワークＷの不良部分が切断装置３により切断除去されると、第１払出し機構５の払出し板２２が駆動部２３により上昇し、帯状ワークＷを水平姿勢で切断用位置決めピン４ａに沿って上方へ持ち上げ、切断用位置決めピン４ａから引き抜く（図１６参照）。このとき、第１払出し機構５の払出し板２２が、切断用位置決めピン４ａに嵌合された帯状ワークＷの裏面側に当接して帯状ワークＷの切断用位置決めピン４ａに嵌合された部分全域を押し上げるため、帯状ワークＷを複数本の切断用位置決めピン４ａに嵌め込んでいても、帯状ワークＷを変形させることなく、切断用位置決めピン４ａから簡単且つ容易に引き抜くことができる。   When the trailing end of the preceding strip-shaped workpiece W, the leading end portion of the succeeding strip-shaped workpiece W, or the defective portion of the strip-shaped workpiece W is cut and removed by the cutting device 3, the dispensing plate 22 of the first dispensing mechanism 5 is driven. 23, the belt-like workpiece W is lifted upward along the cutting positioning pins 4a in a horizontal posture and pulled out from the cutting positioning pins 4a (see FIG. 16). At this time, the payout plate 22 of the first payout mechanism 5 is in contact with the back surface side of the strip-shaped workpiece W fitted to the cutting positioning pin 4a, and the entire part of the strip-shaped workpiece W fitted to the cutting positioning pin 4a. Therefore, even if the belt-like workpiece W is fitted into the plurality of cutting positioning pins 4a, the belt-like workpiece W can be easily and easily pulled out from the cutting positioning pins 4a without being deformed.

帯状ワークＷを切断用位置決めピン４ａから引き抜いたら、帯状ワークＷの切断端部付近を突合せ用位置決め機構９により位置決めして帯状ワークＷの切断端面同士を突き合せ、帯状ワークＷの突合せ部近傍をクランプ機構８により上下方向から挾持する（図１７及び図１８参照）。
即ち、帯状ワークＷの切断端面同士が下部クランプ板７ｃの浅溝７ｃ″上で突き合されるように帯状ワークＷのパイロット孔Ｗａを突合せ用位置決め機構９の一方の列の突合せ用位置決めピン９ａに嵌め込んで帯状ワークＷを下部クランプ板７ｃ上で位置決めする。このとき、帯状ワークＷの切断端面同士は、突合せ用位置決めピン９ａにより位置決めされるため、正確に且つ密着状に突き合される。
そして、帯状ワークＷの切断端面同士が下部クランプ板７ｃ上で突き合されたら、溶接装置１０及びクランプ機構８の上部治具６が前進して帯状ワークＷの上方位置へ移動すると共に、この状態で待機位置にある下部治具７が流体圧シリンダ２４により挾持位置へ上昇する。これによって、帯状ワークＷの突合せ部近傍は、上部クランプ板６ａと下部クランプ板７ｃとの間で緊密且つ強固に挾持固定される。 After the belt-like workpiece W is pulled out from the cutting positioning pin 4a, the vicinity of the cutting end portion of the belt-like workpiece W is positioned by the abutting positioning mechanism 9 so that the cut end surfaces of the belt-like workpiece W are abutted to each other, The clamp mechanism 8 is used to hold it from above and below (see FIGS. 17 and 18).
That is, the pilot holes Wa of the belt-like workpiece W are brought into contact with the shallow grooves 7c ″ of the lower clamp plate 7c so that the cut end surfaces of the belt-like workpiece W are brought into contact with each other. And the band-shaped workpiece W is positioned on the lower clamp plate 7c.At this time, the cut end faces of the band-shaped workpiece W are positioned by the butting positioning pins 9a, so that they are butted accurately and closely. .
When the cut end surfaces of the strip-shaped workpiece W are abutted on the lower clamp plate 7c, the welding apparatus 10 and the upper jig 6 of the clamp mechanism 8 move forward and move to an upper position of the strip-shaped workpiece W. Then, the lower jig 7 in the standby position is raised to the holding position by the fluid pressure cylinder 24. As a result, the vicinity of the butt portion of the belt-like workpiece W is tightly and firmly clamped and fixed between the upper clamp plate 6a and the lower clamp plate 7c.

帯状ワークＷの突合せ部近傍がクランプ機構８により挾持固定されたら、溶接装置１０が作動して帯状ワークＷの突合せ部が自動溶接される。即ち、溶接用トーチ１０ａが下降してタングステン電極棒の先端を一方のタブ２６上面に位置させ、タブ材２６とタングステン電極棒との間でアークを発生させる。その後、溶接用トーチ１０ａが所定の速度で帯状ワークＷ側へ移動し、帯状ワークＷの突合せ部に沿って移動しつつ帯状ワークＷの突合せ部を突合せ溶接する。   When the vicinity of the butt portion of the belt-like workpiece W is clamped and fixed by the clamp mechanism 8, the welding apparatus 10 is activated and the butt portion of the belt-like workpiece W is automatically welded. That is, the welding torch 10a is lowered, the tip of the tungsten electrode rod is positioned on the upper surface of one tab 26, and an arc is generated between the tab material 26 and the tungsten electrode rod. Thereafter, the welding torch 10a moves toward the strip-shaped workpiece W at a predetermined speed, and butt welds the butted portion of the strip-shaped workpiece W while moving along the butted portion of the strip-shaped workpiece W.

帯状ワークＷの突合せ溶接が終了したら、帯状ワークＷのクランプ状態を解除すると共に、下部クランプ板７ｃが駆動部２７により上昇し、帯状ワークＷを水平姿勢で突合せ用位置決めピン９ａに沿って上方へ持ち上げ、突合せ用置決めピンから引き抜く（図１９参照）。このとき、第２払出し機構１１の下部クランプ板７ｃが、突合せ用位置決めピン９ａに嵌合された帯状ワークＷの裏面側に当接して帯状ワークＷの突合せ用位置決めピン９ａに嵌合された部分全域を押し上げるため、帯状ワークＷを複数本の突合せ用位置決めピン９ａに嵌め込んでいても、帯状ワークＷを変形させることなく、切断用位置決めピン４ａから簡単且つ容易に引き抜くことができる。   When the butt welding of the belt-like workpiece W is completed, the clamp state of the belt-like workpiece W is released, and the lower clamp plate 7c is raised by the drive unit 27, and the belt-like workpiece W is moved upward along the butt positioning pin 9a in a horizontal posture. Lift up and pull out from the butting pin (see FIG. 19). At this time, the lower clamp plate 7c of the second payout mechanism 11 is in contact with the back side of the strip-shaped workpiece W fitted to the butting positioning pin 9a and is fitted to the butting positioning pin 9a of the strip-shaped workpiece W In order to push up the entire area, even if the belt-like workpiece W is fitted into the plurality of butting positioning pins 9a, the belt-like workpiece W can be easily and easily pulled out from the cutting positioning pins 4a without deformation.

帯状ワークＷを突合せ用位置決めピン９ａから引き抜いたら、帯状ワークＷの溶接部が圧延装置１２の圧延台２９上に位置するように帯状ワークＷのパイロット孔Ｗａを圧延用位置決め機構１３の一方の列の圧延用位置決めピン１３ａに嵌め込んで帯状ワークＷを圧延台２９上で位置決めすると共に、この状態で圧延装置１２を作動させて帯状ワークＷの溶接部を圧延加工し、帯状ワークＷの溶接部の厚みや組織を均一化する（図２０参照）。このとき、帯状ワークＷの溶接部は、圧延用位置決めピン１３ａにより位置決めされているため、圧延台２９及び加圧爪３６により確実且つ良好に圧延加工される。   When the strip-shaped workpiece W is pulled out from the butt positioning pin 9a, the pilot holes Wa of the strip-shaped workpiece W are arranged in one row of the rolling positioning mechanism 13 so that the welded portion of the strip-shaped workpiece W is positioned on the rolling table 29 of the rolling device 12. The belt-shaped workpiece W is fitted on the rolling positioning pin 13a to position the strip-shaped workpiece W on the rolling table 29. In this state, the rolling device 12 is operated to roll the welded portion of the strip-shaped workpiece W, and the welded portion of the strip-shaped workpiece W is welded. The thickness and the structure are made uniform (see FIG. 20). At this time, the welded portion of the belt-like workpiece W is positioned by the rolling positioning pin 13a, and thus is reliably and satisfactorily rolled by the rolling table 29 and the pressure claw 36.

帯状ワークＷの溶接部の圧延加工が終了したら、帯状ワークＷを圧延用位置決めピン１３ａから引き抜き、接合された帯状ワークＷのパイロット孔Ｗａのピッチが一定になっているかどうかを検査用ケージ１４により検査する。
即ち、帯状ワークＷの接合部近傍のパイロット孔Ｗａを検査用ケージ１４の一方の列の検査用ピン３８に合致させ、この状態で帯状ワークＷを下方へ押して取出し板３９ａを圧縮スプリング３９ｃの附勢力に抗して検査用ピン３８に沿って下方へスライドさせつつ、帯状ワークＷのパイロット孔Ｗａへ検査用ピン３８を嵌め込み、全ての検査用ピン３８がパイロット孔Ｗａへ確実且つスムースに嵌り込むかを確認する（図２１及び図２２参照）。全ての検査用ピン３８が帯状ワークＷの各パイロット孔Ｗａに嵌り込めば、帯状ワークＷの接合が精度良く行われていることになる。
尚、帯状ワークＷを圧延用位置決めピン１３ａから引き抜く際、帯状ワークＷは、二本の圧延用位置決めピン１３ａに嵌め込まれているため、作業員が帯状ワークＷを手作業により圧延用位置決めピン１３ａから引き抜いても、帯状ワークＷを変形させることなく、圧延用位置決めピン１３ａから簡単且つ容易に引き抜くことができる。 When the rolling process of the welded portion of the strip-shaped workpiece W is completed, the strip-shaped workpiece W is pulled out of the positioning pin 13a for rolling, and the inspection cage 14 checks whether the pitch of the pilot holes Wa of the strip-shaped workpiece W is constant. inspect.
That is, the pilot hole Wa in the vicinity of the joint portion of the belt-like workpiece W is matched with the inspection pin 38 in one row of the inspection cage 14, and the belt-like workpiece W is pushed downward in this state to attach the take-out plate 39a to the compression spring 39c. The inspection pins 38 are fitted into the pilot holes Wa of the belt-like workpiece W while sliding downward along the inspection pins 38 against the force, and all the inspection pins 38 are securely and smoothly fitted into the pilot holes Wa. (See FIGS. 21 and 22). If all the inspection pins 38 are fitted into the pilot holes Wa of the strip-shaped workpiece W, the strip-shaped workpiece W is joined with high accuracy.
When the strip-shaped workpiece W is pulled out from the rolling positioning pins 13a, the strip-shaped workpiece W is fitted into the two rolling positioning pins 13a. Therefore, the operator manually pulls the strip-shaped workpiece W into the rolling positioning pins 13a. Even if it is pulled out, it can be easily and easily pulled out from the positioning pin 13a for rolling without deforming the belt-like workpiece W.

帯状ワークＷの検査が終了したら、帯状ワークＷを下方へ押し付けている力を緩める。そうすると、取出し板３９ａが圧縮スプリング３９ｃの弾性力により上昇し、帯状ワークＷを水平姿勢で検査用ピン３８に沿って上方へ持ち上げ、検査用ピン３８から引き抜く。このとき、帯状ワークＷを取出し板３９ａにより水平姿勢で検査用ピン３８に沿って持ち上げているため、帯状ワークＷを複数本の検査用ピン３８に嵌め込んでいても、帯状ワークＷを変形させることなく、検査用ピン３８から簡単且つ容易に引き抜くことができる。   When the inspection of the belt-like workpiece W is completed, the force pressing the belt-like workpiece W downward is loosened. Then, the take-out plate 39a is raised by the elastic force of the compression spring 39c, and the belt-like workpiece W is lifted upward along the inspection pin 38 in a horizontal posture and pulled out from the inspection pin 38. At this time, since the strip-shaped workpiece W is lifted along the inspection pin 38 in a horizontal posture by the take-out plate 39a, the strip-shaped workpiece W is deformed even if the strip-shaped workpiece W is fitted to the plurality of inspection pins 38. Without being pulled out from the inspection pin 38 easily and easily.

本発明の実施の形態に係る帯状ワークの突合せ接合装置の概略正面図である。It is a schematic front view of the butt | joint joining apparatus of the strip | belt-shaped workpiece | work which concerns on embodiment of this invention. 切断装置の一部省略平面図である。It is a partially-omission top view of a cutting device. 切断装置の縦断側面図である。It is a vertical side view of a cutting device. 図３のＡ−Ａ線断面図である。FIG. 4 is a sectional view taken along line AA in FIG. 3. 図３のＢ−Ｂ線断面図である。FIG. 4 is a sectional view taken along line BB in FIG. 3. クランプ機構の下部治具の平面図である。It is a top view of the lower jig of a clamp mechanism. 図６のＣ−Ｃ線断面図である。It is CC sectional view taken on the line of FIG. 図６のＤ−Ｄ線断面図である。It is the DD sectional view taken on the line of FIG. 圧延装置の縦断側面図である。It is a vertical side view of a rolling apparatus. 圧延装置の縦断正面図である。It is a vertical front view of a rolling device. 検査用ゲージの平面図である。It is a top view of an inspection gauge. 図１１のＥ−Ｅ線断面図である。It is the EE sectional view taken on the line of FIG. 図１１のＦ−Ｆ線断面図である。It is the FF sectional view taken on the line of FIG. 切断装置で帯状ワークを切断する状態を示し、帯状ワークを切断用位置決め機構で位置決めした状態の切断装置の一部省略平面図である。FIG. 5 is a partially omitted plan view of the cutting device in a state in which the cutting device is in the state of cutting the belt-like workpiece and the belt-like workpiece is positioned by the cutting positioning mechanism. 帯状ワークを切断装置で切断した状態の切断装置の縦断正面図である。It is a vertical front view of the cutting device of the state which cut | disconnected the strip | belt-shaped workpiece | work with the cutting device. 帯状ワークを第１払出し機構により切断用位置決めピンから引き抜いた状態の切断装置の一部省略縦断側面図である。It is a partially omitted vertical side view of the cutting device in a state in which the belt-like workpiece is pulled out from the cutting positioning pin by the first payout mechanism. 帯状ワークを突合せ位置決め機構によりクランプ機構の下部治具上で位置決めした状態を示す下部治具の一部省略平面図である。It is a partially omitted plan view of the lower jig showing a state in which the belt-like workpiece is positioned on the lower jig of the clamp mechanism by the butt positioning mechanism. 帯状ワークの突合せ部近傍をクランプ機構でクランプし、溶接装置で突合せ溶接する状態を示すクランプ機構の縦断正面図である。It is a vertical front view of a clamp mechanism showing a state in which the vicinity of a butt portion of a belt-like workpiece is clamped by a clamp mechanism and butt welded by a welding apparatus. 突合せ溶接により接合された帯状ワークを第２払出し機構により突合せ用位置決めピンから引き抜いた状態の下部治具の縦断正面図である。It is a vertical front view of a lower jig in a state where a strip-like work joined by butt welding is pulled out from a butt positioning pin by a second payout mechanism. 帯状ワークの溶接部を圧延装置により圧延加工する状態を示す圧延装置の縦断正面図である。It is a vertical front view of the rolling apparatus which shows the state which rolls the welding part of a strip | belt-shaped workpiece | work with a rolling apparatus. 突合せ溶接により接合された帯状ワークを検査用ゲージで検査している状態を示す検査用ゲージの平面図である。It is a top view of the inspection gauge which shows the state which test | inspects the strip | belt-shaped workpiece | work joined by butt welding with the inspection gauge. 同じく帯状ワークを検査用ゲージで検査している状態を示す検査用ゲージの縦断側面図である。It is a vertical side view of the inspection gauge showing a state where the strip-like workpiece is inspected with the inspection gauge.

符号の説明Explanation of symbols

３は切断装置、４は切断用位置決め機構、４ａは切断用位置決めピン、５は第１払出し機構、６は上部治具、７は下部治具、７ｃは下部治具の下部クランプ板、８はクランプ機構、９は突合せ用位置決め機構、９ａは突合せ用位置決めピン、１０は溶接装置、１１は第２払出し装置、１３は検査用ゲージ、２２は第１払出し機構の払出し板、２３は第１払出し機構の駆動部、２７は第２払出し機構の駆動部、３７は検査台、３８は検査用ピン、３９は取出し機構、Ｗは帯状ワーク、Ｗａは帯状ワークのパイロット孔、Ｐ，Ｐ′はパイロット孔、切断用位置決めピン、突合せ用位置決めピン、圧延用位置決めピン及び検査用ピンのピッチ。   3 is a cutting device, 4 is a positioning mechanism for cutting, 4a is a positioning pin for cutting, 5 is a first paying mechanism, 6 is an upper jig, 7 is a lower jig, 7c is a lower clamp plate of the lower jig, and 8 Clamping mechanism, 9 is a butting positioning mechanism, 9a is a butting positioning pin, 10 is a welding device, 11 is a second dispensing device, 13 is an inspection gauge, 22 is a dispensing plate of the first dispensing mechanism, and 23 is a first dispensing. The drive unit of the mechanism, 27 is the drive unit of the second delivery mechanism, 37 is the inspection table, 38 is the inspection pin, 39 is the take-out mechanism, W is the strip-shaped workpiece, Wa is the pilot hole of the strip-shaped workpiece, and P and P 'are the pilots Pitch of holes, cutting positioning pins, butting positioning pins, rolling positioning pins and inspection pins.

Claims (5)

位置決め用のパイロット孔（Ｗａ）を等間隔毎に形成した帯状ワーク（Ｗ）を幅方向に切断する切断装置（３）と、帯状ワーク（Ｗ）のパイロット孔（Ｗａ）のピッチと同一ピッチで配置されて各パイロット孔（Ｗａ）に夫々着脱自在に嵌合される複数本の切断用位置決めピン（４ａ）から成り、帯状ワーク（Ｗ）の切断時に帯状ワーク（Ｗ）を所定の位置に位置決めする切断用位置決め機構（４）と、帯状ワーク（Ｗ）の切断終了後に切断用位置決めピン（４ａ）に嵌合された帯状ワーク（Ｗ）を切断用位置決めピン（４ａ）に沿って移動させて切断用位置決めピン（４ａ）から押し出す第１払出し機構（５）と、二つの帯状ワーク（Ｗ）の切断端面同士を突き合せた状態でその突合せ部近傍を上下方向から挾持する上部治具（６）及び下部治具（７）から成るクランプ機構（８）と、帯状ワーク（Ｗ）のパイロット孔（Ｗａ）のピッチと同一ピッチで配置されて各パイロット孔（Ｗａ）に夫々着脱自在に嵌合される複数本の突合せ用位置決めピン（９ａ）から成り、二つの帯状ワーク（Ｗ）の突合せ時に両帯状ワーク（Ｗ）を所定の位置に位置決めする突合せ用位置決め機構（９）と、帯状ワーク（Ｗ）の突合せ部を突合せ溶接する溶接装置（１０）と、帯状ワーク（Ｗ）の突合せ溶接後に突合せ用位置決めピン（９ａ）に嵌合された帯状ワーク（Ｗ）を突合せ用位置決めピン（９ａ）に沿って移動させて突合せ用位置決めピン（９ａ）から押し出す第２払出し機構（１１）とを具備した帯状ワークの突合せ接合装置であって、前記切断用位置決めピン（４ａ）及び突合せ用位置決めピン（９ａ）は、夫々二列ずつ配置されており、一方の列の切断用位置決めピン（４ａ）及び突合せ用位置決めピン（９ａ）のピッチと他方の列の切断用位置決めピン（４ａ）及び突合せ用位置決めピン（９ａ）のピッチとを夫々異なるピッチ（Ｐ），（Ｐ′）に設定し、異なるピッチ（Ｐ），（Ｐ′）のパイロット孔（Ｗａ）を形成した二種類の帯状ワーク（Ｗ）の位置決めを行えるようにし、又、前記二列の切断用位置決めピン（４ａ）は、帯状ワーク（Ｗ）を位置決めして切断装置（３）で切断するときに帯状ワーク（Ｗ）が隣接するパイロット孔（Ｗａ）の丁度中間位置で幅方向に沿って切断されるように配置されていることを特徴とする帯状ワークの突合せ接合装置。 A cutting device (3) for cutting the strip-shaped workpiece (W) in which positioning pilot holes (Wa) are formed at equal intervals in the width direction and the pitch of the pilot holes (Wa) of the strip-shaped workpiece (W) at the same pitch. It is composed of a plurality of cutting positioning pins (4a) that are arranged and detachably fitted to the pilot holes (Wa), respectively, and position the belt-like workpiece (W) at a predetermined position when the belt-like workpiece (W) is cut. The cutting positioning mechanism (4) to be moved and the band-shaped workpiece (W) fitted to the cutting positioning pin (4a) after the cutting of the band-shaped workpiece (W) is moved along the cutting positioning pin (4a). A first payout mechanism (5) pushed out from the positioning pin (4a) for cutting, and an upper jig (6 for holding the vicinity of the butted portion from above and below in a state where the cut end surfaces of the two strip-like workpieces (W) are butted together. ) And below A plurality of clamp mechanisms (8) comprising a jig (7) and a plurality of pilot holes (Wa) that are arranged at the same pitch as the pitch of pilot holes (Wa) of the belt-like workpiece (W) and are detachably fitted to the pilot holes (Wa). A butt positioning mechanism (9) which comprises two butt positioning pins (9a) for positioning the two band workpieces (W) at predetermined positions when the two belt workpieces (W) are butted. A welding device (10) for butt welding the butt portion, and a belt-like workpiece (W) fitted to the butt positioning pin (9a) after butt welding of the belt-like workpiece (W) along the butt positioning pin (9a) a butt joint device of the belt-like workpiece and a second payout mechanism pressing out the moved by the positioning butting pin (9a) (11), said cutting positioning pin (4a) and the butt for position The deciding pins (9a) are arranged in two rows each, and the pitch of the cutting positioning pins (4a) and the butting positioning pins (9a) in one row and the cutting positioning pins (4a) in the other row and Two types of belt-shaped workpieces in which pilot holes (Wa) having different pitches (P) and (P ') are formed by setting different pitches (P) and (P') to the butt positioning pins (9a). (W) can be positioned, and the two rows of cutting positioning pins (4a) are arranged so that the band-shaped workpiece (W) is positioned when the band-shaped workpiece (W) is positioned and cut by the cutting device (3). A belt-shaped workpiece butt-joining apparatus, which is arranged so as to be cut along the width direction at an intermediate position between adjacent pilot holes (Wa) . 切断装置（３）は、左右の下刃（１６ａ）を備えた雌型（１６）と、雌型（１６）に対して上下動自在に配設され、雌型（１６）の左右の下刃（１６ａ）との協働作用により帯状ワーク（Ｗ）を幅方向に切断する左右の上刃（１７ａ）を備えた雄型（１７）と、雄型（１７）を上下動させる流体圧シリンダ（１８）と、雄型（１７）に設けられ、帯状ワーク（Ｗ）の切断時に帯状ワーク（Ｗ）を雌型（１６）の上面側へ押え付ける材料押え機構（１９）とから構成されていることを特徴とする請求項１に記載の帯状ワークの突合せ接合装置。 The cutting device (3) is provided with a female die (16) having left and right lower blades (16a) and a vertically movable relative to the female die (16), and left and right lower blades of the female die (16). A male die (17) having left and right upper blades (17a) for cutting the strip-like workpiece (W) in the width direction by the cooperative action with (16a), and a fluid pressure cylinder (moving up and down the male die (17)) 18) and a material pressing mechanism (19) that is provided on the male mold (17) and presses the band-shaped work (W) to the upper surface side of the female mold (16) when the band-shaped work (W) is cut. The belt-like workpiece butt joining apparatus according to claim 1. 第１払出し機構（５）は、切断用位置決めピン（４ａ）に沿って上下動自在に配設され、切断用位置決めピン（４ａ）に嵌合された帯状ワーク（Ｗ）の裏面側に当接して帯状ワーク（Ｗ）の切断用位置決めピン（４ａ）に嵌合された部分全域を押し上げる払出し板（２２）と、払出し板（２２）を切断用位置決めピン（４ａ）に沿って上下動させる駆動部（２３）とから成り、前記払出し板（２２）を駆動部（２３）により切断用位置決めピン（４ａ）の先端側へ移動させて切断用位置決めピン（４ａ）に嵌合されている帯状ワーク（Ｗ）を切断用位置決めピン（４ａ）から押し出すようにしたことを特徴とする請求項１に記載の帯状ワークの突合せ接合装置。   The first payout mechanism (5) is arranged so as to be movable up and down along the cutting positioning pin (4a), and abuts on the back side of the belt-like workpiece (W) fitted to the cutting positioning pin (4a). The discharge plate (22) that pushes up the entire area of the belt-shaped workpiece (W) that is fitted to the cutting positioning pin (4a), and the drive that moves the discharging plate (22) up and down along the cutting positioning pin (4a). A belt-like workpiece that is fitted to the cutting positioning pin (4a) by moving the discharge plate (22) to the distal end side of the cutting positioning pin (4a) by the driving portion (23). 2. The belt-like workpiece butt joining apparatus according to claim 1, wherein (W) is pushed out from a cutting positioning pin (4a). 第２払出し機構（１１）は、突合せ用位置決めピン（９ａ）に沿って上下動自在に配設され、突合せ用位置決めピン（９ａ）に嵌合された帯状ワーク（Ｗ）の裏面側に当接して帯状ワーク（Ｗ）の突合せ用位置決めピン（９ａ）に嵌合された部分全域を押し上げるクランプ機構（８）の下部治具（７）を形成する下部クランプ板（７ｃ）と、下部クランプ板（７ｃ）を突合せ用位置決めピン（９ａ）に沿って上下動させる駆動部（２７）とから成り、前記下部クランプ板（７ｃ）を駆動部（２７）により突合せ用位置決めピン（９ａ）の先端側へ移動させて突合せ用位置決めピン（９ａ）に嵌合されている帯状ワーク（Ｗ）を突合せ用位置決めピン（９ａ）から押し出すようにしたことを特徴とする請求項１に記載の帯状ワークの突合せ接合装置。   The second payout mechanism (11) is disposed so as to be movable up and down along the butting positioning pin (9a) and abuts on the back surface side of the belt-like workpiece (W) fitted to the butting positioning pin (9a). A lower clamp plate (7c) that forms a lower jig (7) of the clamp mechanism (8) that pushes up the entire area of the belt-shaped workpiece (W) that is fitted to the butting positioning pin (9a), and a lower clamp plate ( 7c) and a drive part (27) that moves up and down along the butting positioning pin (9a). The lower clamp plate (7c) is moved to the tip side of the butting positioning pin (9a) by the driving part (27). The butt joint of the strip-shaped workpiece according to claim 1, wherein the strip-shaped workpiece (W) fitted to the butt positioning pin (9a) is pushed out from the butt positioning pin (9a). Location. 突合せ接合装置は、突合せ溶接により接合された帯状ワーク（Ｗ）のパイロット孔（Ｗａ）のピッチを検査する検査用ゲージ（１４）を備えており、当該検査用ゲージ（１４）は、検査台（３７）と、検査台（３７）に帯状ワーク（Ｗ）のパイロット孔（Ｗａ）のピッチと同一ピッチで配置されて各パイロット孔（Ｗａ）に夫々着脱自在に嵌合される複数本の検査用ピン（３８）と、検査用ピン（３８）に嵌合された帯状ワーク（Ｗ）を検査用ピン（３８）に沿って移動させて検査用ピン（３８）から押し出す取出し機構（３９）とから構成され、又、検査用ゲージ（１４）の検査用ピン（３８）は、二列の状態で配置されており、一方の列の検査用ピン（３８）のピッチと他方の列の検査用ピン（３８）のピッチとを夫々異なるピッチ（Ｐ），（Ｐ′）に設定し、異なるピッチ（Ｐ），（Ｐ′）のパイロット孔（Ｗａ）を形成した二種類の帯状ワーク（Ｗ）の検査を行えるようにしたことを特徴とする請求項１に記載の帯状ワークの突合せ接合装置。 The butt joining apparatus includes an inspection gauge (14) for inspecting the pitch of the pilot holes (Wa) of the strip-like workpieces (W) joined by butt welding, and the inspection gauge (14) is an inspection table ( 37) and a plurality of inspections that are arranged on the inspection table (37) at the same pitch as the pilot holes (Wa) of the belt-like workpiece (W) and are detachably fitted to the pilot holes (Wa), respectively. From the pin (38) and the take-out mechanism (39) that moves the belt-like workpiece (W) fitted to the inspection pin (38) along the inspection pin (38) and pushes it out from the inspection pin (38). The inspection pins (38) of the inspection gauge (14) are arranged in two rows, the pitch of the inspection pins (38) in one row and the inspection pins in the other row. (38) and a different pitch (P , Claims, characterized in that so as to perform an inspection of (P ') is set to a different pitch (P), (P') two of the strip-shaped workpiece (W) forming a pilot hole (Wa) of The strip-shaped workpiece butt joining apparatus according to 1.
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