JP6804064B2 - Vertical butt welding equipment - Google Patents

Vertical butt welding equipment Download PDF

Info

Publication number
JP6804064B2
JP6804064B2 JP2018198065A JP2018198065A JP6804064B2 JP 6804064 B2 JP6804064 B2 JP 6804064B2 JP 2018198065 A JP2018198065 A JP 2018198065A JP 2018198065 A JP2018198065 A JP 2018198065A JP 6804064 B2 JP6804064 B2 JP 6804064B2
Authority
JP
Japan
Prior art keywords
rolling
metal thin
strip
shaft
shaped metal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
JP2018198065A
Other languages
Japanese (ja)
Other versions
JP2020066006A (en
Inventor
村田　彰久
彰久 村田
唯介 村田
唯介 村田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Murata Welding Laboratories Inc
Original Assignee
Murata Welding Laboratories Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Murata Welding Laboratories Inc filed Critical Murata Welding Laboratories Inc
Priority to JP2018198065A priority Critical patent/JP6804064B2/en
Publication of JP2020066006A publication Critical patent/JP2020066006A/en
Application granted granted Critical
Publication of JP6804064B2 publication Critical patent/JP6804064B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Shearing Machines (AREA)

Description

本発明は、例えば、ステンレス、鉄、銅、アルミ等の帯状金属薄板の表面処理や熱処理等を連続的に行うライン、特に、帯状金属薄板をその幅方向を垂直にして搬送するメッキラインに設置されるものであり、メッキライン上を流れている垂直姿勢の先行の帯状金属薄板の後端に同じく垂直姿勢の後行の帯状金属薄板の先端を突合せ溶接により接合できるようにした縦型突合せ溶接装置に係り、特に、突合せ溶接した帯状金属薄板の溶接部を垂直姿勢の状態で圧延加工して溶接部の厚みや硬度、組織を均一化する圧延装置を備えた縦型突合せ溶接装置に関するものである。 The present invention is installed, for example, in a line for continuously performing surface treatment, heat treatment, etc. of a strip metal thin plate such as stainless steel, iron, copper, aluminum, etc., particularly in a plating line for transporting the strip metal thin plate with its width direction vertical. Vertical butt welding that allows the tip of the trailing strip metal thin plate of the same vertical posture to be joined by butt welding to the rear end of the strip metal thin plate of the preceding vertical posture flowing on the plating line. It relates to the equipment, and in particular, it relates to a vertical butt welding apparatus equipped with a rolling apparatus for rolling the welded portion of a butt-welded strip-shaped metal thin plate in a vertical posture to make the thickness, hardness and structure of the welded portion uniform. is there.

一般に、ステンレスや鉄等の帯状金属薄板を連続的に供給しながら帯状金属薄板にメッキ処理を行うメッキラインにおいては、生産性の向上等を図るためにメッキライン上に通されている先行の帯状金属薄板の後端に後行の帯状金属薄板の先端を突合せ溶接により接合し、帯状金属薄板を連続して加工処理することが行われている。 Generally, in a plating line in which a strip metal thin plate such as stainless steel or iron is continuously supplied and a strip metal thin plate is plated, a preceding strip shape passed through the plating line in order to improve productivity and the like. The tip of the strip-shaped metal thin plate behind is joined to the rear end of the metal thin plate by butt welding, and the strip-shaped metal thin plate is continuously processed.

従来、先行の帯状金属薄板と後行の帯状金属薄板を突合せ溶接する突合せ溶接装置としては、本件発明者が先に開発した特許第３９７４４６４号公報（特許文献１）、特許第４７３３５７８号公報（特許文献２）、特許第４９２７７８２号公報（特許文献３）、特許第５１８０８９８号公報（特許文献４）、特許第５１９９９２０号公報（特許文献５）、特許第５８０９３７８号公報（特許文献６）、特許第６３３８６２９号公報（特許文献７）、特開２０１８−６９３０６号公報（特許文献８）及び特開２０１８−１１４５２０（引用文献９）号公報等に開示された突合せ接合装置が知られている。 Conventionally, as a butt welding apparatus for butt-welding a preceding strip-shaped metal thin plate and a trailing strip-shaped metal thin plate, Japanese Patent No. 3974464 (Patent Document 1) and Japanese Patent No. 4733578 (Patent) developed earlier by the present inventor. 2), Japanese Patent No. 4927782 (Patent Document 3), Japanese Patent No. 5180898 (Patent Document 4), Japanese Patent No. 5199920 (Patent Document 5), Japanese Patent No. 5809378 (Patent Document 6), Patent No. The butt joining apparatus disclosed in Japanese Patent Application Laid-Open No. 6338629 (Patent Document 7), Japanese Patent Application Laid-Open No. 2018-69306 (Patent Document 8), Japanese Patent Application Laid-Open No. 2018-114520 (Patent Document 9), and the like are known.

即ち、前記各突合せ溶接装置（突合せ接合装置）は、図示していないが、何れも先行の帯状金属薄板の後端部及び後行の帯状金属薄板の先端部を支持する水平な作業テーブルと、先行の帯状金属薄板の後端部及び後行の帯状金属薄板の先端部を幅方向に沿って切断する切断装置と、両帯状金属薄板の切断端同士を突き合せた状態でその突合せ部近傍を上方から押圧する左右の上部クランプと、両帯状金属薄板の突合せ部を突合せ溶接するＴＩＧ溶接用トーチを備えた溶接装置等をそれぞれ備えており、帯状金属薄板の突合せ溶接を高能率且つ高精度で行うことができる等の利点を有する。 That is, although not shown, each of the butt welding devices (butt welding devices) includes a horizontal work table that supports the rear end portion of the preceding strip-shaped metal thin plate and the tip portion of the trailing strip-shaped metal thin plate. A cutting device that cuts the rear end of the leading strip metal thin plate and the tip of the trailing strip metal thin plate along the width direction, and the vicinity of the butted portion with the cut ends of both strip metal thin plates abutted against each other. It is equipped with left and right upper clamps that press from above and a welding device equipped with a TIG welding torch that butt-welds the butt welds of both strip-shaped metal thin plates, respectively, and butt-welding of strip-shaped metal thin plates with high efficiency and high accuracy. It has advantages such as being able to be performed.

また、帯状金属薄板の突合せ溶接においては、突合せ溶接した帯状金属薄板の溶接部の厚みが帯状金属薄板の厚みよりも厚くなったり、また、帯状金属薄板の溶接部及びその近傍が熱の影響を受けて硬度が高くなったり、組織が悪くなったりする等の問題が発生するため、前記突合せ溶接装置には、帯状金属薄板の溶接部を圧延加工して溶接部の厚みや硬度、組織を均一化する圧延装置を備えたものがある。 Further, in the butt welding of the strip metal thin plate, the thickness of the welded portion of the strip metal thin plate that has been butt welded becomes thicker than the thickness of the strip metal thin plate, and the welded portion of the strip metal thin plate and its vicinity are affected by heat. In response to this, problems such as high hardness and poor structure occur. Therefore, in the butt welding device, the welded portion of the strip-shaped metal thin plate is rolled to make the thickness, hardness, and structure of the welded portion uniform. Some are equipped with a rolling mill.

ところで、帯状金属薄板を連続的にメッキ処理するメッキ設備においては、通常コイル状に巻き取られた帯状金属薄板をアンコイラーから連続的に繰り出し、リコイラーで巻き取る間に、脱脂や酸洗等の前処理と、メッキ、水洗、乾燥、防錆等の後処理が連続的に行われており、前記帯状金属薄板は、通常その幅方向を水平にして搬送され、メッキ処理が施されている。 By the way, in a plating facility for continuously plating a strip-shaped metal thin plate, a strip-shaped metal thin plate that is normally wound in a coil shape is continuously unwound from an anchorer, and while being wound by a recoiler, before degreasing or pickling. The treatment and post-treatment such as plating, washing with water, drying, and rust prevention are continuously performed, and the strip-shaped metal thin plate is usually transported with its width direction horizontal and plated.

このように、帯状金属薄板をメッキ処理する際に、帯状金属薄板がその幅方向を水平にして横方向に搬送されていると、帯状金属薄板に弛みが生じて帯状金属薄板の正確な位置決めが困難になったり、メッキ処理液槽内のメッキ液が揺れたり、或いは、水平な帯状金属薄板の下面に化学変化等により生じた気泡等の逃げ道がなくなり、その結果、メッキに斑が生じて高品位なメッキ処理を行えなくなると言う問題があった。 In this way, when the strip metal thin plate is plated, if the strip metal thin plate is transported in the lateral direction with the width direction horizontal, the strip metal thin plate is loosened and the accurate positioning of the strip metal thin plate is performed. It becomes difficult, the plating solution in the plating solution tank shakes, or there is no escape route for air bubbles generated by chemical changes on the lower surface of the horizontal strip-shaped metal thin plate, and as a result, the plating becomes uneven and high. There was a problem that the high-quality plating process could not be performed.

一方、帯状金属薄板を連続的にメッキ処理するメッキ設備においては、上述したメッキ処理の問題を解決するため、帯状金属薄板をその幅方向を垂直にして搬送し、その間にメッキ処理を施すようにしたメッキ設備が使用に供されている。 On the other hand, in a plating facility for continuously plating a strip metal thin plate, in order to solve the above-mentioned problem of plating treatment, the strip metal thin plate is conveyed with its width direction vertical, and the plating treatment is performed between them. Plating equipment is available for use.

しかしながら、上述した従来の各帯状金属薄板の突合せ溶接装置は、何れも水平姿勢で搬送される帯状金属薄板を突合せ溶接するものであり、垂直姿勢で横方向に搬送される帯状金属薄板には、対応しておらず、幅方向を垂直にして搬送される帯状金属薄板の突合せ溶接を行えないと言う問題があった。 However, all of the above-mentioned conventional butt-welding devices for strip-shaped metal thin plates are for butt-welding strip-shaped metal thin plates transported in a horizontal posture, and for strip-shaped metal thin plates transported in a vertical posture in a horizontal direction, There was a problem that the butt welding of the strip-shaped metal thin plate transported with the width direction vertical was not possible.

そこで、本件発明者は、幅方向を垂直にして搬送される帯状金属薄板の突合せ溶接を行えるようにした縦型突合せ溶接装置を開発し、これを特許出願（特願２０１８−０８１９４２）している。 Therefore, the present inventor has developed a vertical butt welding apparatus capable of butt welding of strip-shaped metal thin plates transported with the width direction vertical, and has applied for a patent application (Japanese Patent Application No. 2018-081942). ..

しかし、前記縦型突合せ溶接装置においても、未だ解決すべき問題点が残されている。 However, even in the vertical butt welding apparatus, there are still problems to be solved.

即ち、前記縦型突合せ接合装置においては、突合せ溶接した帯状金属薄板の溶接部を圧延加工する圧延装置を備えていないため、帯状金属薄板の溶接部を別の場所に設置した圧延装置により圧延加工しなければならず、取扱性や作業性に劣ると云う問題があった。 That is, since the vertical butt joining device does not have a rolling device for rolling the welded portion of the butt-welded strip metal thin plate, the welded portion of the strip-shaped metal thin plate is rolled by a rolling apparatus installed at another location. There was a problem that it was inferior in handleability and workability.

特許第３９７４４６４号公報Japanese Patent No. 3974464 特許第４７３３５７８号公報Japanese Patent No. 4733578 特許第４９２７７８２号公報Japanese Patent No. 4927782 特許第５１８０８９８号公報Japanese Patent No. 5180898 特許第５１９９９２０号公報Japanese Patent No. 5199920 特許第５８０９３７８号公報Japanese Patent No. 5809378 特許第６３３８６２９号公報Japanese Patent No. 6338629 特開２０１８−６９３０６号公報JP-A-2018-69306 特開２０１８−１１４５２０号公報JP-A-2018-114520

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、幅方向を垂直にして搬送される帯状金属薄板の突合せ溶接を行えると共に、突合せ溶接した帯状金属薄板の溶接部を垂直姿勢の状態で圧延加工できるようにした縦型突合せ溶接装置を提供することにある。 The present invention has been made in view of such problems, and an object of the present invention is to perform butt welding of strip-shaped metal thin plates transported with the width direction vertical, and to weld butt-welded strip-shaped metal thin plates. An object of the present invention is to provide a vertical butt welding apparatus capable of rolling a portion in a vertical posture.

上記目的を達成するために、本発明の請求項１に記載の縦型突合せ溶接装置は、幅方向を垂直にして搬送される先行の帯状金属薄板及び後行の帯状金属薄板の背面にそれぞれ面接触状態で当接し得る上下動自在な垂直姿勢の作業テーブルと、作業テーブルに設けられ、先行の帯状金属薄板の後端部及び後行の帯状金属薄板の先端部をそれぞれ幅方向に沿って切断する切断装置と、作業テーブルに設けられ、幅方向に沿って切断された先行の帯状金属薄板の後端部及び後行の帯状金属薄板の先端部を背面側から支持すると共に、両帯状金属薄板の突合せ部の背面に対向するバックバーを有する背面治具ユニットと、背面治具ユニットの前方位置に上下動自在に設けられ、先行の帯状金属薄板の後端と後行の帯状金属薄板の先端とを突き合せた状態で両帯状金属薄板の突合せ部近傍を背面治具ユニットのバックバーとで前後方向から挟持固定する左右の前部クランプと、両帯状金属薄板の突合せ部に沿って上下動し、両帯状金属薄板の突合せ部を突合せ溶接するＴＩＧ溶接用トーチを有する溶接装置と、突合せ溶接した両帯状金属薄板の溶接部を垂直姿勢の状態で圧延加工して溶接部の厚みや硬度、組織を均一化する圧延装置と、を備え、前記圧延装置は、切断装置の前面に取り付けられ、突合せ溶接した両帯状金属薄板の溶接部が当接する垂直姿勢の圧延台と、圧延台に前方へ突出する状態で設けた水平姿勢の圧延支持軸と、圧延台に前方へ突出する状態で設けられ、圧延支持軸に対向する水平姿勢の取付エンド部材と、両端部が圧延支持軸及び取付エンド部材にそれぞれ支持され、突合せ溶接した両帯状金属薄板の溶接部に沿う圧延シャフトと、圧延シャフトに当該圧延シャフトの軸線方向へ往復移動自在に支持された圧延移動台と、圧延移動台に回転自在に設けられ、圧延台に当接する両帯状金属薄板の溶接部上を転動する圧延ローラと、圧延移動台に設けられ、圧延ローラを圧延台側へ加圧する加圧手段と、を備えていることに特徴がある。 In order to achieve the above object, the vertical butt-rolling apparatus according to claim 1 of the present invention has surfaces on the back surfaces of the preceding strip-shaped metal thin plate and the succeeding strip-shaped metal thin plate, which are conveyed with the width direction perpendicular to each other. A vertical work table that can be moved up and down that can be in contact with each other, and a work table that is provided on the work table and cuts the rear end of the leading strip metal sheet and the tip of the trailing strip metal thin plate along the width direction. The cutting device to be rolled and the trailing end of the leading strip metal thin plate and the tip of the trailing strip metal thin plate, which are provided on the work table and cut along the width direction, are supported from the back side, and both strip metal thin plates are supported. A back jig unit having a back bar facing the back surface of the butted portion, and a rear end of the leading strip metal thin plate and the tip of the trailing strip metal thin plate, which are movably provided at the front position of the back jig unit. Left and right front clamps that hold and fix the vicinity of the butt portion of both strip-shaped metal thin plates with the back bar of the back jig unit from the front-rear direction, and move up and down along the butt portion of both strip-shaped metal thin plates. Then, a welding device having a TIG welding torch that butt-welds the butt joints of both strip-shaped metal thin plates and the welded portion of both butt-welded strip metal thin plates are rolled in a vertical posture to determine the thickness and hardness of the weld. A rolling apparatus for homogenizing the structure is provided , and the rolling apparatus is mounted on the front surface of the cutting apparatus and has a vertical rolling table in which the welded portions of the butt-welded strip-shaped metal thin plates abut and the rolling table is forward. A horizontal rolling support shaft provided in a protruding state, a horizontal mounting end member provided on the rolling table in a forward protruding state and facing the rolling support shaft, and both ends of the rolling support shaft and mounting end member. A rolling shaft along the welded part of both strip-shaped metal thin plates that are butt-welded and supported by the rolling shaft, a rolling moving table that is rotatably supported by the rolling shaft in the axial direction of the rolling shaft, and a rolling moving table that can be rotated freely. It is provided with a rolling roller that is provided and rolls on a welded portion of both strip-shaped metal thin plates that abut on the rolling table, and a pressurizing means that is provided on the rolling moving table and pressurizes the rolling roller toward the rolling table. There is a feature in.

本発明の請求項２に記載の縦型突合せ溶接装置は、請求項１に記載の縦型突合せ溶接装置において、前記切断装置は、作業テーブルに埋設された状態となる待機位置と、作業テーブルの前面から前方へ突出して先行の帯状金属薄板の後端部及び後行の帯状金属薄板の先端部をそれぞれ幅方向に沿って切断する切断作業位置とに亘って、作業テーブルに前後方向へ移動可能に設けられ、また、前記圧延装置は、切断装置の前面に取り付けられていることに特徴がある。 The vertical butt welding apparatus according to claim 2 of the present invention is the vertical butt welding apparatus according to claim 1, wherein the cutting apparatus has a standby position in which it is embedded in a work table and a work table. It can be moved back and forth to the work table over the cutting work position where the rear end of the leading strip metal thin plate and the tip of the trailing strip metal thin plate are cut along the width direction, respectively, protruding from the front to the front. Also, the rolling apparatus is characterized in that it is attached to the front surface of the cutting apparatus.

本発明の請求項３に記載の縦型突合せ溶接装置は、請求項１に記載の縦型突合せ溶接装置において、前記圧延シャフトは、圧延シャフトの一端部が圧延支持軸に上下方向へ回動自在に支持されていると共に、圧延シャフトの他端部が取付エンド部材に着脱自在に取り付けられており、圧延台に対向して平行になる圧延位置と、圧延位置から外れて水平姿勢になる待避位置とを取り得るようになっていることに特徴がある。 The vertical butt welding apparatus according to claim 3 of the present invention is the vertical butt welding apparatus according to claim 1 , wherein one end of the rolling shaft is rotatable in the vertical direction with respect to the rolling support shaft. The other end of the rolling shaft is detachably attached to the mounting end member, and the rolling position is parallel to the rolling table and the retreat position is out of the rolling position and is in a horizontal position. It is characterized by being able to take.

本発明の請求項４に記載の縦型突合せ溶接装置は、請求項３に記載の縦型突合せ溶接装置において、前記圧延台に、圧延位置から待避位置に回動した圧延シャフトを待避位置に保持するシャフト保持機構を設けたことに特徴がある。 The vertical butt welding apparatus according to claim 4 of the present invention holds a rolling shaft rotated from a rolling position to a retreat position in the repellent position on the rolling table in the vertical butt welding apparatus according to claim 3. It is characterized by providing a shaft holding mechanism.

本発明の請求項５に記載の縦型突合せ溶接装置は、請求項４に記載の縦型突合せ溶接装置において、前記シャフト保持機構は、圧延台に設けられ、圧延シャフトの一部分が抜き差し自在に挿入される凹部を形成した保持具と、保持具に設けられ、保持具の凹部に挿入された圧延シャフトを凹部から抜け止めする締め付け具とを備えていることに特徴がある。 The vertical butt welding apparatus according to claim 5 of the present invention is the vertical butt welding apparatus according to claim 4 , wherein the shaft holding mechanism is provided on a rolling table, and a part of the rolling shaft can be inserted and removed freely. It is characterized in that it is provided with a holder having a concave portion formed therein and a fastener provided on the holder to prevent the rolling shaft inserted into the concave portion of the holder from coming off from the concave portion.

本発明の請求項６に記載の縦型突合せ溶接装置は、請求項３に記載の縦型突合せ溶接装置において、前記圧延支持軸と圧延シャフトとの間に、圧延位置から待避位置に回動した圧延シャフトを待避位置にロックし得ると共に、圧延シャフトのロック状態を解除し得るロック機構を設けたことに特徴がある。 The vertical butt welding apparatus according to claim 6 of the present invention is the vertical butt welding apparatus according to claim 3 , in which the rolling support shaft and the rolling shaft are rotated from a rolling position to a relief position. It is characterized by providing a locking mechanism that can lock the rolling shaft to the retracted position and release the locked state of the rolling shaft.

本発明の請求項７に記載の縦型突合せ溶接装置は、請求項６に記載の縦型突合せ溶接装置において、前記ロック機構は、圧延シャフトの一端部に形成した回転用穴及び回転用穴に連通して回転用穴の内径よりも幅が狭い圧延シャフトの軸線方向に沿うスリット状の溝穴から成るガイド穴と、ガイド穴に挿通されて圧延支持軸の先端部に螺着され、ガイド穴内に位置する水平姿勢の板状軸部を有するロック用ボルトとを備えており、前記ロック用ボルトの板状軸部の幅は、ガイド穴の回転用穴の内周面に当接し、また、板状軸部の厚みは、ガイド穴のスリット状の溝穴に摺動自在に挿入されるようにそれぞれ設定されていることに特徴がある。 The vertical butt welding apparatus according to claim 7 of the present invention is the vertical butt welding apparatus according to claim 6 , wherein the lock mechanism is formed in a rotation hole and a rotation hole formed at one end of a rolling shaft. A guide hole consisting of a slit-shaped groove along the axial direction of the rolling shaft, which is narrower than the inner diameter of the rotating hole, and a guide hole that is inserted through the guide hole and screwed to the tip of the rolling support shaft, inside the guide hole. It is provided with a locking bolt having a plate-shaped shaft portion in a horizontal posture located at, and the width of the plate-shaped shaft portion of the locking bolt abuts on the inner peripheral surface of the rotation hole of the guide hole. The thickness of the plate-shaped shaft portion is characterized in that it is set so as to be slidably inserted into the slit-shaped groove hole of the guide hole.

本発明の縦型突合せ溶接装置は、幅方向を垂直にして搬送される先行の帯状金属薄板の後端部及び後行の帯状金属薄板の先端部を支持する垂直姿勢の作業テーブルと、先行の帯状金属薄板の後端部及び後行の帯状金属薄板の先端部をそれぞれ幅方向に沿って切断する切断装置と、先行の帯状金属薄板の後端部及び後行の帯状金属薄板の先端部を支持する背面治具ユニットと、先行の帯状金属薄板の後端と後行の帯状金属薄板の先端とを突き合せた状態で両帯状金属薄板の突合せ部近傍を背面治具ユニットとで前後方向から挟持固定する左右の前部クランプと、両帯状金属薄板の突合せ部に沿って上下動し、両帯状金属薄板の突合せ部を突合せ溶接するＴＩＧ溶接用トーチを有する溶接装置と、を備えているため、幅方向を垂直にして搬送される帯状金属薄板の突合せ溶接を確実且つ良好に行うことができる。 The vertical butt welding apparatus of the present invention includes a work table in a vertical posture that supports the rear end portion of the leading strip metal thin plate and the tip portion of the trailing strip metal thin plate that are conveyed vertically in the width direction, and a preceding work table. A cutting device that cuts the rear end of the strip metal thin plate and the tip of the trailing strip metal thin plate along the width direction, and the rear end of the preceding strip metal thin plate and the tip of the trailing strip metal thin plate, respectively. With the back jig unit to support and the rear end of the preceding strip metal thin plate and the tip of the trailing strip metal thin plate abutting, the vicinity of the abutment portion of both strip metal thin plates is formed from the front and rear direction with the back jig unit. Because it is equipped with left and right front clamps for sandwiching and fixing, and a welding device having a TIG welding torch that moves up and down along the butt portion of both strip-shaped metal thin plates and butt-welds the butt portions of both strip-shaped metal thin plates. However, butt welding of strip-shaped metal thin plates transported with the width direction perpendicular can be performed reliably and satisfactorily.

また、本発明の縦型突合せ溶接装置は、作業テーブルを上下動自在としているため、例えば、メッキライン上を搬送されている帯状金属薄板の幅やメッキ設備の構造等によって帯状金属薄板の搬送ラインの高さが変わっても、帯状金属薄板の突合せ溶接を確実且つ良好に行うことができる。 Further, in the vertical butt welding apparatus of the present invention, since the work table can be moved up and down, for example, the strip metal thin plate transport line depends on the width of the strip metal thin plate transported on the plating line and the structure of the plating equipment. Even if the height of the strip is changed, the butt welding of the strip metal thin plate can be performed reliably and satisfactorily.

更に、本発明の縦型突合せ溶接装置は、突合せ溶接した両帯状金属薄板の溶接部を垂直姿勢の状態で圧延加工する圧延装置を備えているため、両帯状金属薄板の溶接部の厚みや硬度、組織を均一化することができると共に、突合せ溶接した両帯状金属薄板の溶接部を別の場所に設置した圧延装置により圧延加工したりする必要もなく、取扱性や作業性に優れたものとなる。 Further, since the vertical butt welding apparatus of the present invention includes a rolling apparatus for rolling the welded portion of the butt-welded double-band metal thin plate in a vertical posture, the thickness and hardness of the welded portion of the double-band metal thin plate are provided. In addition to being able to make the structure uniform, it is not necessary to roll the welded part of both butt-welded strip-shaped metal thin plates with a rolling machine installed at another location, and it is excellent in handleability and workability. Become.

更に、本発明の縦型突合せ溶接装置は、切断装置が、作業テーブルに埋設された状態となる待機位置と、作業テーブルの前面から前方へ突出して先行の帯状金属薄板の後端部及び後行の帯状金属薄板の先端部をそれぞれ幅方向に沿って切断する切断作業位置とに亘って、作業テーブルに前後方向へ移動可能に設けられているため、帯状金属薄板の搬送時や突合せ溶接時に切断装置が邪魔になると言うことがない。また、本発明の縦型突合せ装置は、圧延装置が切断装置の前面に取り付けられているため、作業テーブルに圧延装置を設置するためのスペースを取る必要がなく、作業テーブルのコンパクト化を図ることができる。 Further, in the vertical butt welding apparatus of the present invention, the cutting apparatus has a standby position in which the cutting apparatus is embedded in the work table, and the rear end portion and the trailing portion of the preceding strip-shaped metal thin plate protruding forward from the front surface of the work table. Since the tip of the strip metal thin plate is provided so as to be movable in the front-rear direction on the work table over the cutting work position where the tip of the strip metal thin plate is cut along the width direction, the strip metal thin plate is cut during transportation or butt welding. There is nothing to say that the device gets in the way. Further, in the vertical butt apparatus of the present invention, since the rolling apparatus is mounted on the front surface of the cutting apparatus, it is not necessary to take a space for installing the rolling apparatus on the work table, and the work table can be made compact. Can be done.

更に、本発明の縦型突合せ溶接装置は、圧延装置が、圧延台、圧延支持軸、取付エンド部材、圧延シャフト、圧延移動台、圧延ローラ、加圧手段を備え、圧延シャフトの一端部が圧延支持軸に上下方向へ回動自在に支持されていると共に、圧延シャフトの他端部が取付エンド部材に着脱自在に取り付けられており、且つ、圧延シャフトが、圧延台に対向して平行になる圧延位置と、圧延位置から外れて水平姿勢になる待避位置とを取り得るようになっているため、突合せ溶接した両帯状金属薄板の溶接部を圧延装置にセットしたり、或いは、圧延装置から取り外したりするのが容易になると共に、帯状金属薄板の搬送時に圧延装置が帯状金属薄板と干渉するのを防止することができる。 Further, in the vertical butt welding apparatus of the present invention, the rolling apparatus includes a rolling table, a rolling support shaft, a mounting end member, a rolling shaft, a rolling moving table, a rolling roller, and a pressurizing means, and one end of the rolling shaft is rolled. It is rotatably supported in the vertical direction by the support shaft, the other end of the rolling shaft is detachably attached to the mounting end member, and the rolling shaft is parallel to the rolling table. Since it is possible to take a rolling position and a retreat position that deviates from the rolling position and becomes a horizontal posture, the welded portion of the butt-welded double-band metal thin plate is set in the rolling device or removed from the rolling device. In addition to facilitating the rolling, it is possible to prevent the rolling apparatus from interfering with the strip metal thin plate during transportation of the strip metal thin plate.

更に、本発明の縦型突合せ溶接装置は、圧延装置が、圧延移動台、圧延ローラ及び加圧手段を設けた圧延シャフトを待避位置に保持するシャフト保持機構又は待避位置にロックし得るロック機構を備えているため、突合せ溶接した両帯状金属薄板の溶接部を圧延装置にセットしたり、或いは、圧延装置から取り外したりするのがより一層容易になると共に、帯状金属薄板の搬送時に圧延装置が帯状金属薄板と干渉するのをより確実に防止することができる。 Further, the vertical butt welding apparatus of the present invention includes a shaft holding mechanism for holding the rolling shaft provided with a rolling moving table, a rolling roller and a pressurizing means in a retracting position, or a locking mechanism capable of locking the rolling shaft in a retracting position. Since it is provided, it is easier to set the welded portion of the butt-welded double strip metal thin plate in the rolling apparatus or to remove it from the rolling apparatus, and the rolling apparatus is strip-shaped when the strip metal thin plate is conveyed. It is possible to more reliably prevent interference with the thin metal plate.

本発明の一実施形態に係る縦型突合せ溶接装置を示し、（Ａ）は縦型突合せ溶接装置の正面図、（Ｂ）は縦型突合せ溶接装置の右側面図、（Ｃ）は縦型突合せ溶接装置の背面図である。A vertical butt welding apparatus according to an embodiment of the present invention is shown, (A) is a front view of the vertical butt welding apparatus, (B) is a right side view of the vertical butt welding apparatus, and (C) is a vertical butt welding apparatus. It is a rear view of a welding apparatus. キャビネット本体に設けた上下移動台を示し、（Ａ）は上下移動台の概略正面図、（Ｂ）は上下移動台の右側面図である。The vertical moving table provided in the cabinet body is shown, (A) is a schematic front view of the vertical moving table, and (B) is a right side view of the vertical moving table. 切断装置の概略右側面図である。It is a schematic right side view of a cutting device. 切断装置の一部切欠き底面図である。It is a partial notch bottom view of the cutting device. 背面治具ユニットの正面図である。It is a front view of the rear jig unit. 背面治具ユニットの左側面図である。It is a left side view of the rear jig unit. 背面治具ユニットの底面図である。It is a bottom view of the rear jig unit. 背面治具ユニットの要部の断面図である。It is sectional drawing of the main part of the back jig unit. 左右の前部クランプ及び溶接装置の平面図である。It is a top view of the left and right front clamps and a welding apparatus. 左右の前部クランプ及び溶接装置の正面図である。It is a front view of the left and right front clamps and a welding apparatus. 左右の前部クランプ及び溶接装置の側面図である。It is a side view of the left and right front clamps and a welding apparatus. ＴＩＧ溶接用トーチの縦断面図である。It is a vertical sectional view of the torch for TIG welding. 突き合せた先行の帯状金属薄板と後行の帯状金属薄板を左右の前部クランプと背面治具ユニットとで挟持固定した状態の一部切欠き平面図である。It is a partial notch plan view of the state in which the leading strip-shaped metal thin plate and the trailing strip-shaped metal thin plate are sandwiched and fixed by the left and right front clamps and the back jig unit. 圧延装置の正面図である。It is a front view of the rolling mill. 圧延装置の左側面図である。It is a left side view of a rolling mill. 図１４のイ−イ線拡大断面図である。FIG. 14 is an enlarged cross-sectional view taken along the line of FIG. 図１４のロ−ロ線拡大断面図である。FIG. 14 is an enlarged cross-sectional view taken along the line of FIG. 図１５のハ−ハ線拡大断面図である。FIG. 15 is an enlarged cross-sectional view taken along the line Ha-ha of FIG. 圧延装置の圧延シャフトをシャフト保持機構により待避位置に保持した状態の圧延装置の一部省略正面図である。It is a partially omitted front view of the rolling apparatus in a state where the rolling shaft of a rolling apparatus is held in a retreat position by a shaft holding mechanism. 図１９のニ−ニ線断面図である。FIG. 19 is a cross-sectional view taken along the line Ny in FIG. 図１９のホ−ホ線拡大断面図である。FIG. 19 is an enlarged cross-sectional view taken along the Ho-ho line of FIG. 圧延装置の他の例を示す正面図である。It is a front view which shows another example of a rolling apparatus. 図２２に示す圧延装置の左側面図である。It is a left side view of the rolling mill shown in FIG. 図２２に示す圧延装置の要部の一部切欠き拡大正面図である。FIG. 22 is an enlarged front view of a part of a main part of the rolling mill shown in FIG. 22 with a notch. 図２２に示す圧延装置の要部の一部切欠き拡大左側面図である。FIG. 22 is an enlarged left side view of a part of a notch of a main part of the rolling mill shown in FIG. 図２２に示す圧延装置の圧延シャフトをロック機構により待避位置にロックする状態を示し、（Ａ）は圧延シャフトを圧延位置から待避位置へ回動させて圧延シャフトが非ロック状態の圧延装置の要部の一部切欠き拡大正面図、（Ｂ）は圧延シャフトを待避位置でロックした状態の圧延装置の要部の一部切欠き拡大正面図である。A state in which the rolling shaft of the rolling apparatus shown in FIG. 22 is locked to the retracted position by a locking mechanism is shown, and (A) is the key to the rolling apparatus in which the rolling shaft is unlocked by rotating the rolling shaft from the rolling position to the retracting position. An enlarged front view of a part of the notch of the portion, (B) is an enlarged front view of a part of the main part of the rolling apparatus in a state where the rolling shaft is locked at the retracted position.

以下、本発明の一実施形態を図面に基づいて詳細に説明する。
図１は本発明の一実施形態に係る帯状金属薄板Ｗ１，Ｗ２の縦型突合せ溶接装置を示し、当該縦型突合せ溶接装置は、主に、ステンレス、鉄、銅、アルミ等の帯状金属薄板Ｗ１，Ｗ２を連続的に供給しながら帯状金属薄板Ｗ１，Ｗ２にメッキ処理を行うメッキラインに設置されるものであり、幅方向を垂直（上下方向）にしてメッキライン上を流れている先行の帯状金属薄板Ｗ１の後端に、同じく幅方向を垂直（上下方向）にした後行の帯状金属薄板Ｗ２の先端を突合せ溶接により接合し、新しい後行の帯状金属薄板Ｗ２を先行の帯状金属薄板Ｗ１に引き続いてメッキライン上へ供給できるようにしたものである。 Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.
FIG. 1 shows a vertical butt-welding device for strip-shaped metal thin plates W1 and W2 according to an embodiment of the present invention, and the vertical butt-welding device is mainly a strip-shaped metal thin plate W1 such as stainless steel, iron, copper, and aluminum. , W2 is installed on the plating line where the strip-shaped metal thin plates W1 and W2 are plated while continuously supplying W2, and the leading strip-shaped flowing on the plating line with the width direction vertical (vertical direction). The tip of the trailing strip metal thin plate W2, which is also vertical (vertical) in the width direction, is joined to the rear end of the metal strip W1 by butt plating, and the new trailing strip metal thin plate W2 is joined to the preceding strip metal thin plate W1. It is made possible to supply it on the plating line subsequently.

即ち、前記縦型突合せ溶接装置は、図１に示す如く、キャビネット本体１と、キャビネット本体１に上下動自在に設けられ、先行の帯状金属薄板Ｗ１の背面及び後行の帯状金属薄板Ｗ２の背面に面接触状態で当接し得る垂直姿勢の作業テーブル２と、作業テーブル２に設けられ、先行の帯状金属薄板Ｗ１の後端部及び後行の帯状金属薄板Ｗ２の先端部をそれぞれ幅方向に沿って切断する切断装置３と、作業テーブル２に設けられ、切断装置３により各帯状金属薄板Ｗ１，Ｗ２を幅方向に沿って切断する際に各帯状金属薄板Ｗ１，Ｗ２を背面側から真空吸着により作業テーブル２の前面へ吸引保持する切断用真空吸引機構４と、作業テーブル２に設けられ、先行の帯状金属薄板Ｗ１の後端部及び後行の帯状金属薄板Ｗ２の先端部を背面側から支持して両帯状金属薄板Ｗ１，Ｗ２の突合せ部の背面に対向するバックバー３５を有する背面治具ユニット５と、背面治具ユニット５の前方位置に上下動自在に設けられ、先行の帯状金属薄板Ｗ１の後端と後行の帯状金属薄板Ｗ２の先端とを突き合せた状態で両帯状金属薄板Ｗ１，Ｗ２の突合せ部近傍を背面治具ユニット５のバックバー３５とで前後方向から挟持固定する左右の前部クランプ６と、両帯状金属薄板Ｗ１，Ｗ２の突合せ部に沿って上下動し、両帯状金属薄板Ｗ１，Ｗ２の突合せ部を突合せ溶接するＴＩＧ溶接用トーチ５２を有する溶接装置７と、突合せ溶接した両帯状金属薄板Ｗ１，Ｗ２の溶接部を垂直姿勢の状態で圧延加工する圧延装置８を備えており、例えば、板厚が０．１ｍｍ〜０．５ｍｍで且つ幅が最大で４００ｍｍの帯状金属薄板Ｗ１，Ｗ２を突合せ溶接できるようになっている。 That is, as shown in FIG. 1, the vertical butt welding apparatus is provided on the cabinet body 1 and the cabinet body 1 so as to be vertically movable, and is provided on the back surface of the preceding strip-shaped metal thin plate W1 and the back surface of the trailing strip-shaped metal thin plate W2. A vertical work table 2 that can be brought into contact with the surface in contact with the surface, and the rear end of the preceding strip metal thin plate W1 and the tip of the trailing strip metal thin plate W2 provided on the work table 2 along the width direction, respectively. When the strip-shaped metal thin plates W1 and W2 are cut along the width direction by the cutting device 3 provided on the work table 2 and the strip-shaped metal thin plates W1 and W2 are cut by vacuum suction from the back side. A vacuum suction mechanism 4 for cutting that sucks and holds to the front surface of the work table 2, and a rear end portion of the preceding strip-shaped metal thin plate W1 and a tip portion of the trailing strip-shaped metal thin plate W2 provided on the work table 2 are supported from the back side. A back jig unit 5 having a back bar 35 facing the back surface of the butt portion of both strip-shaped metal thin plates W1 and W2, and a preceding strip-shaped metal thin plate movably provided at a position in front of the back jig unit 5 With the rear end of W1 and the tip of the trailing strip metal thin plate W2 abutting, the vicinity of the butted portion of both strip metal thin plates W1 and W2 is sandwiched and fixed by the back bar 35 of the back jig unit 5 from the front-rear direction. A welding device 7 having left and right front clamps 6 and a TIG welding torch 52 that moves up and down along the butt portions of the two strip metal thin plates W1 and W2 to butt weld the butt portions of the two strip metal thin plates W1 and W2. A rolling apparatus 8 for rolling the welded portions of the butt-welded double-band metal thin plates W1 and W2 in a vertical posture is provided. For example, the plate thickness is 0.1 mm to 0.5 mm and the width is 400 mm at the maximum. The strip-shaped metal thin plates W1 and W2 can be butt-welded.

前記キャビネット本体１は、図１に示す如く、フレーム材及び金属板により縦長の直方体状に形成されており、キャビネット本体１の内部には、溶接用ガスボンベ９、溶接用電源装置（図示省略）、油圧ユニット（図示省略）、切断装置３及び溶接装置７等の制御装置（図示省略）等がそれぞれ格納されていると共に、キャビネット本体１の底面には、キャスター１０及びフットロック１１が設けられている。 As shown in FIG. 1, the cabinet body 1 is formed in a vertically long rectangular shape by a frame material and a metal plate, and inside the cabinet body 1, a welding gas cylinder 9, a welding power supply device (not shown), and a welding power supply device (not shown). A hydraulic unit (not shown), a control device (not shown) such as a cutting device 3 and a welding device 7 are stored, and a caster 10 and a foot lock 11 are provided on the bottom surface of the cabinet body 1. ..

また、キャビネット本体１の前面には、図１に示す如く、垂直姿勢の板状の上下移動台１２と、上下移動台１２に設けられ、背面が開放された開閉可能なボックス状の下部正面カバー１３と、下部正面カバー１３に固定され、切断装置３や溶接装置７等を作動させる各種スイッチ１４ａを備えた正面操作盤１４と、作業灯１５ａを備えた上部正面カバー１５とが設けられている。 Further, on the front surface of the cabinet body 1, as shown in FIG. 1, a plate-shaped vertical moving table 12 in a vertical position and a box-shaped lower front cover provided on the vertical moving table 12 and having an open back surface can be opened and closed. A front operation panel 14 fixed to the lower front cover 13 and provided with various switches 14a for operating the cutting device 3 and the welding device 7, and an upper front cover 15 provided with a work light 15a are provided. ..

前記上下移動台１２は、図２に示す如く、キャビネット本体１の前面に垂直姿勢で配設した案内レール１６ａ及び案内レール１６ａ上を摺動するスライダー１６ｂから成るリニアガイド１６を介してキャビネット本体１の前面に上下動自在に支持されており、モータ１７ａ、ピニオン１７ｂ及びラック１７ｃから成る移動台駆動装置１７によりキャビネット本体１の前面に沿って上下動するようになっている。この上下移動台１２の上下動に伴って下部正面カバー１３及び正面操作盤１４も上下動動するようになっている。 As shown in FIG. 2, the vertical moving table 12 is provided via a linear guide 16 including a guide rail 16a arranged vertically on the front surface of the cabinet body 1 and a slider 16b sliding on the guide rail 16a. It is supported vertically on the front surface of the cabinet, and is moved up and down along the front surface of the cabinet body 1 by a moving platform drive device 17 including a motor 17a, a pinion 17b, and a rack 17c. The lower front cover 13 and the front operation panel 14 also move up and down with the vertical movement of the vertical movement table 12.

更に、キャビネット本体１の背面には、図１に示す如く、溶接条件等を設定して溶接電流や溶接速度等を表示するタッチパネル１８ａ及び設定用の各種スイッチ１８ｂを備えた主操作盤１８が設けられている。 Further, as shown in FIG. 1, a main operation panel 18 provided with a touch panel 18a for setting welding conditions and displaying the welding current, welding speed, etc. and various switches 18b for setting is provided on the back surface of the cabinet body 1. Has been done.

前記作業テーブル２は、図１に示す如く、厚肉の金属板により矩形状に形成されており、上下移動台１２の前面に、テーブル面が前方を向く姿勢で且つ垂直姿勢で固定されている。この作業テーブル２の左側部分には、切断装置３が挿通される縦長の細長い開口２ａが形成されていると共に、作業テーブル２の幅方向中間位置には、背面治具ユニット５が収容される縦長の長方形状の開口２ｂが形成されている。 As shown in FIG. 1, the work table 2 is formed in a rectangular shape by a thick metal plate, and is fixed to the front surface of the vertical moving table 12 in a posture in which the table surface faces forward and in a vertical posture. .. A vertically long elongated opening 2a through which the cutting device 3 is inserted is formed in the left side portion of the work table 2, and a vertically long elongated opening 2a in which the back jig unit 5 is housed is formed at an intermediate position in the width direction of the work table 2. A rectangular opening 2b is formed.

また、作業テーブル２の前面位置には、図５に示す如く、背面治具ユニット５を挟むようにして長尺ブロック状の位置決めストッパー１９が水平姿勢で設けられている。この位置決めストッパー１９は、作業テーブル２の前面に面接触状態で当接した先行の帯状金属薄板Ｗ１及び後行の帯状金属薄板Ｗ２の下辺を支持して両帯状金属薄板Ｗ１，Ｗ２の幅方向（上下方向）の位置決めを行うものである。 Further, at the front position of the work table 2, as shown in FIG. 5, a long block-shaped positioning stopper 19 is provided in a horizontal posture so as to sandwich the back jig unit 5. The positioning stopper 19 supports the lower sides of the preceding strip-shaped metal thin plate W1 and the trailing strip-shaped metal thin plate W2 that are in contact with the front surface of the work table 2 in a surface contact state, and supports both strip-shaped metal thin plates W1 and W2 in the width direction ( Positioning in the vertical direction).

前記切断装置３は、図３及び図４に示す如く、帯状金属薄板Ｗ１，Ｗ２を挿通可能な垂直姿勢の板状の固定側部材２０と、固定側部材２０に帯状金属薄板Ｗ１，Ｗ２の幅方向（上下方向）に沿う姿勢で固定された固定刃２１と、固定側部材２０にリニアレール２２を介して前後方向（図３の左右方向、図４の上下方向）へスライド自在に取り付けられ、帯状金属薄板Ｗ１，Ｗ２を挿通可能な垂直姿勢の板状の可動側部材２３と、可動側部材２３に固定刃２１に沿う姿勢で固定され、固定刃２１との協働作用により帯状金属薄板Ｗ１，Ｗ２を幅方向に沿って切断する可動刃２４と、固定側部材２０と可動側部材２３との間に介設され、可動刃２４が固定刃２１から離間するように可動側部材２３を前方（図３の左方向、図４の上方向）へ付勢する複数の圧縮コイルスプリング２５と、固定側部材２０と可動側部材２３との間に介設され、可動側部材２３を後退させて可動刃２４を固定刃２１側へ移動させる切断用流体圧シリンダ２６と、可動側部材２３に支持ピン２７を介して前後方向へ移動自在に支持され、帯状金属薄板Ｗ１，Ｗ２の前面に面接触状態で当接し得るクッション材２８を貼り付けた押え板２９と、可動側部材２３と押え板２９との間に介設され、押え板２９を帯状金属薄板Ｗ１，Ｗ２側へ付勢する複数の圧縮コイルスプリング３０と、を備えており、可動刃２４が切断用流体圧シリンダ２６により固定刃２１側へ近づくときに、可動刃２４よりも先に押え板２９がクッション材２８を介して先行の帯状金属薄板Ｗ１の前面又は後行の帯状金属薄板Ｗ２の前面へ弾性的に当接し、各帯状金属薄板Ｗ１，Ｗ２を固定刃２１と押え板２９とでそれぞれ強固（切断時に帯状金属薄板Ｗ１，Ｗ２が動かないように）に挟持固定するようになっている。 As shown in FIGS. 3 and 4, the cutting device 3 has a plate-shaped fixed side member 20 having a vertical posture through which the strip metal thin plates W1 and W2 can be inserted, and a width of the strip metal thin plates W1 and W2 in the fixed side member 20. The fixed blade 21 fixed in a posture along the direction (vertical direction) and the fixed side member 20 are slidably attached to the fixed side member 20 in the front-rear direction (horizontal direction in FIG. 3 and vertical direction in FIG. 4) via a linear rail 22. A plate-shaped movable side member 23 having a vertical posture through which the strip metal thin plates W1 and W2 can be inserted, and a strip-shaped metal thin plate W1 fixed to the movable side member 23 in a posture along the fixed blade 21 and collaborating with the fixed blade 21. , W2 is interposed between the movable blade 24 that cuts W2 along the width direction, the fixed side member 20 and the movable side member 23, and the movable side member 23 is moved forward so that the movable blade 24 is separated from the fixed blade 21. A plurality of compression coil springs 25 urging (leftward in FIG. 3 and upward in FIG. 4) are interposed between the fixed-side member 20 and the movable-side member 23, and the movable-side member 23 is retracted. The cutting fluid pressure cylinder 26 that moves the movable blade 24 to the fixed blade 21 side and the movable side member 23 are movably supported in the front-rear direction via the support pin 27 and come into surface contact with the front surfaces of the strip metal thin plates W1 and W2. A plurality of pressing plates 29 to which a cushioning material 28 that can come into contact with each other in the state is interposed between the movable side member 23 and the pressing plate 29, and the pressing plates 29 are urged toward the strip-shaped metal thin plates W1 and W2. A compression coil spring 30 is provided, and when the movable blade 24 approaches the fixed blade 21 side by the cutting fluid pressure cylinder 26, the pressing plate 29 precedes the movable blade 24 via the cushion material 28. The front surface of the strip metal thin plate W1 or the front surface of the trailing strip metal thin plate W2 is elastically contacted, and each strip metal thin plate W1 and W2 are firmly formed by the fixing blade 21 and the holding plate 29 (when cutting, the strip metal thin plate W1, It is designed to be pinched and fixed (so that W2 does not move).

そして、前記切断装置３は、作業テーブル２に前後方向（図３の左右方向、図４の上下方向）へ移動可能に設けられており、切断装置３の前面（可動側部材２３の前面）が作業テーブル２の細長い開口２ａ内に位置して作業テーブル２に埋設された状態となる待機位置（図３参照）と、切断装置３の前面（可動側部材２３の前面）が作業テーブル２の前面から前方へ突出して固定刃２１及び可動刃２４により先行の帯状金属薄板Ｗ１の後端部又は後行の帯状金属薄板Ｗ２の先端部をそれぞれ幅方向に沿って切断し得る切断作業位置（図４参照）と、を取り得るようになっている。 The cutting device 3 is provided on the work table 2 so as to be movable in the front-rear direction (horizontal direction in FIG. 3, vertical direction in FIG. 4), and the front surface of the cutting device 3 (front surface of the movable side member 23) is provided. The standby position (see FIG. 3) located in the elongated opening 2a of the work table 2 and embedded in the work table 2 and the front surface of the cutting device 3 (front surface of the movable side member 23) are the front surfaces of the work table 2. A cutting work position (FIG. 4) in which the rear end portion of the preceding strip-shaped metal thin plate W1 or the tip portion of the trailing strip-shaped metal thin plate W2 can be cut along the width direction by the fixed blade 21 and the movable blade 24. (See), and can be taken.

即ち、前記切断装置３は、作業テーブル２の細長い開口２ａの内周縁部に作業テーブル２の背面側へ突出する状態で取り付けた切断装置用取付板３１にリニアガイド３２を介して作業テーブル２の前後方向（図４の上下方向）へ移動自在に支持されており、切断装置用取付板３１と切断装置３との間に介設した前後移動用流体圧シリンダ３３を伸縮動作させることによって、待機位置（図３に示す位置）と切断作業位置（図４に示す位置）とを取り得るようになっている。 That is, the cutting device 3 is attached to the inner peripheral edge of the elongated opening 2a of the work table 2 in a state of projecting toward the back surface side of the work table 2 via the linear guide 32. It is movably supported in the front-rear direction (vertical direction in FIG. 4), and stands by by expanding and contracting the back-and-forth movement fluid pressure cylinder 33 interposed between the cutting device mounting plate 31 and the cutting device 3. It is possible to take a position (position shown in FIG. 3) and a cutting work position (position shown in FIG. 4).

前記切断用真空吸引機構４は、図１（Ａ）に示す如く、前記作業テーブル２の切断装置３の近傍位置に設けられており、先行の帯状金属薄板Ｗ１の後端部又は後行の帯状金属薄板Ｗ２の先端部を切断装置３により切断する際に、先行の帯状金属薄板Ｗ１の後端部又は後行の帯状金属薄板Ｗ２の先端部を背面側から真空吸着により作業テーブル２の前面へ吸引保持するものである。 As shown in FIG. 1A, the cutting vacuum suction mechanism 4 is provided at a position near the cutting device 3 of the work table 2, and has a rear end portion of the preceding strip-shaped metal thin plate W1 or a trailing strip shape. When the tip of the metal thin plate W2 is cut by the cutting device 3, the rear end of the preceding strip metal thin plate W1 or the tip of the trailing strip metal thin plate W2 is vacuum-sucked from the back side to the front of the work table 2. It holds by suction.

即ち、切断用真空吸引機構４は、作業テーブル２の切断装置３の片側位置に埋設状態で設けられ、帯状金属薄板Ｗ１，Ｗ２の幅方向（図１の上下方向）に一定の間隔を空けて直列状に配置されると共に、真空吸引により帯状金属薄板Ｗ１，Ｗ２の背面を吸引する複数の真空吸着盤４ａと、各真空吸着盤４ａにマニホールド（図示省略）、配管（図示省略）及び電磁弁（図示省略）等を介して接続された真空ポンプ（図示省略）とを備えており、帯状金属薄板Ｗ１，Ｗ２の幅に応じて適宜の真空吸着盤４ａ（帯状金属薄板Ｗ１，Ｗ２に対向する真空吸着盤４ａのみ）が作動するように構成されている。尚、切断用真空吸引機構４は、作業テーブル２の切断装置３の両側位置にそれぞれ埋設状態で設けても良い。 That is, the vacuum suction mechanism 4 for cutting is provided in a state of being embedded in one side of the cutting device 3 of the work table 2, and is spaced at regular intervals in the width direction (vertical direction in FIG. 1) of the strip-shaped metal thin plates W1 and W2. A plurality of vacuum suction plates 4a that are arranged in series and suck the back surfaces of the strip metal thin plates W1 and W2 by vacuum suction, and a manifold (not shown), piping (not shown) and an electromagnetic valve on each vacuum suction plate 4a. It is equipped with a vacuum pump (not shown) connected via (not shown) or the like, and faces an appropriate vacuum suction plate 4a (strip metal thin plates W1 and W2) according to the width of the strip metal thin plates W1 and W2. The vacuum suction plate 4a only) is configured to operate. The cutting vacuum suction mechanism 4 may be provided in a state of being embedded at both side positions of the cutting device 3 of the work table 2.

前記背面治具ユニット５は、図５〜図７に示す如く、作業テーブル２に形成した開口２ｂ内に埋設状態で配設されており、少なくとも背面治具ベース３４と、背面治具本体３５と、バックバー３６と、センタープレート３７と、左右のクランプ３８と、溶接用真空吸引機構３９と、複数枚のクリップ板４０と、スタートタブ４１と、を備えている。 As shown in FIGS. 5 to 7, the back jig unit 5 is arranged in an embedded state in the opening 2b formed in the work table 2, and includes at least the back jig base 34 and the back jig main body 35. A back bar 36, a center plate 37, left and right clamps 38, a vacuum suction mechanism 39 for welding, a plurality of clip plates 40, and a start tab 41 are provided.

具体的には、前記背面治具ベース３４は、図７に示す如く、金属材により横断面形状が凹状に形成されており、作業テーブル２の開口２ｂ周縁部の背面側に複数本のボルト４２により固定されている。 Specifically, as shown in FIG. 7, the back jig base 34 has a concave cross-sectional shape made of a metal material, and a plurality of bolts 42 are formed on the back side of the peripheral portion of the opening 2b of the work table 2. Is fixed by.

前記背面治具本体３５は、背面治具ベース３４の前面に前後方向（図６の左右方向、図７の上下方向）へ移動可能に設けられており、先行の帯状金属薄板Ｗ１の後端部及び後行の帯状金属薄板Ｗ２の先端部を背面側から支持するものである。 The back jig main body 35 is provided on the front surface of the back jig base 34 so as to be movable in the front-rear direction (horizontal direction in FIG. 6 and vertical direction in FIG. 7), and is a rear end portion of the preceding strip-shaped metal thin plate W1. And the tip end portion of the strip-shaped metal thin plate W2 behind is supported from the back surface side.

この背面治具本体３５は、金属材により作業テーブル２の開口２ｂよりも若干小さい矩形の厚肉板状に形成されており、背面治具ベース３４にガイドブッシュ４３及びガイド軸４４を介して前後方向（図６の左右方向、図７の上下方向）へ移動可能に支持され、作業テーブル２の開口２ｂ内及び凹状の背面治具ベース３４内に位置するようになっている。 The back jig main body 35 is formed of a metal material in the shape of a rectangular thick plate slightly smaller than the opening 2b of the work table 2, and is front and rear on the back jig base 34 via a guide bush 43 and a guide shaft 44. It is movably supported in a direction (horizontal direction in FIG. 6 and vertical direction in FIG. 7) and is located in the opening 2b of the work table 2 and in the concave back jig base 34.

また、背面治具本体３５は、背面治具ベース３４の背面に設けた二つの背面治具本体用流体圧シリンダ４５により作業テーブル２の前面と面一になる待機位置（図６及び図７参照）と、作業テーブル２の前面から前方へ突出して前部クランプ６とで両帯状金属薄板Ｗ１，Ｗ２の突合せ部近傍を前後方向から挟持する突出位置（図１３参照）とに亘って前後移動するようになっている。 Further, the back jig main body 35 is in a standby position where the back jig main body 35 is flush with the front surface of the work table 2 by the two back jig main body fluid pressure cylinders 45 provided on the back surface of the back jig base 34 (see FIGS. 6 and 7). ) And the front clamp 6 projecting forward from the front surface of the work table 2 and moving back and forth over the projecting position (see FIG. 13) for sandwiching the vicinity of the abutting portion of both strip-shaped metal thin plates W1 and W2 from the front-rear direction. It has become like.

前記バックバー３６は、図１３に示す如く、両帯状金属薄板Ｗ１，Ｗ２の突合せ部を突合せ溶接する際に、両帯状金属薄板Ｗ１，Ｗ２の突合せ部を背面側から支持するものであり、余分な熱を吸収してビードの溶け落ちや穴あき等を防止すると共に、両帯状金属薄板Ｗ１，Ｗ２の突合せ部の裏面側にアルゴンガス等のシールドガスを流して溶接部の酸化を防止するようになっている。 As shown in FIG. 13, the back bar 36 supports the butt portions of the two strip-shaped metal thin plates W1 and W2 from the back side when the butt portions of the two strip-shaped metal thin plates W1 and W2 are butt-welded. To prevent bead melting and perforation by absorbing heat, and to prevent oxidation of welded parts by flowing shield gas such as argon gas on the back side of the abutting part of both band-shaped metal thin plates W1 and W2. It has become.

このバックバー３６は、銅材により厚肉の長尺板状に形成されており、幅方向中心部には、図８に示す如く、シールドガスが流れると共に、センタープレート３７が前後方向へ移動可能に挿通されるスリット状溝３６ａが形成されている。 The back bar 36 is formed of a copper material in the shape of a thick long plate, and as shown in FIG. 8, a shield gas flows in the central portion in the width direction, and the center plate 37 can move in the front-rear direction. A slit-shaped groove 36a to be inserted into the groove 36a is formed.

また、バックバー３６は、背面治具本体３５の前面に形成した溝状の凹部３５ａに、帯状金属薄板Ｗ１，Ｗ２の幅方向に沿う姿勢で且つ背面治具本体３５の前面と面一になるように嵌め込み固定されている。 Further, the back bar 36 is in a groove-shaped recess 35a formed on the front surface of the back jig body 35 in a posture along the width direction of the strip metal thin plates W1 and W2 and is flush with the front surface of the back jig body 35. It is fitted and fixed like this.

前記センタープレート３７は、先行の帯状金属薄板Ｗ１の後端及び後行の帯状金属薄板Ｗ２の先端の位置決めを行うものであり、図８に示す如く、バックバー３６にバックバー３６の前面から前方へ突出可能に挿通されている。 The center plate 37 positions the rear end of the preceding strip-shaped metal thin plate W1 and the tip of the trailing strip-shaped metal thin plate W2, and as shown in FIG. 8, the back bar 36 is located in front of the back bar 36 from the front surface. It is inserted so that it can protrude into.

このセンタープレート３７は、薄板の鋼板により長尺板状に形成されており、バックバー３６に形成したスリット状溝３６ａ内に前後方向へ移動可能に挿通されている。 The center plate 37 is formed in a long plate shape by a thin steel plate, and is inserted into a slit-shaped groove 36a formed in the back bar 36 so as to be movable in the front-rear direction.

また、センタープレート３７は、背面治具本体３５の背面に取り付けたセンタープレート用流体圧シリンダ４６により先端がバックバー３６のスリット状溝３６ａ内に収納される収納位置（図８の実線位置）と、センタープレート３７の先端部がバックバー３６の前面から前方へ数ミリ程度突出する突出位置（図８の一点鎖線位置）とに亘って前後方向（図８の上下方向）へ移動するようになっている。 Further, the center plate 37 has a storage position (solid line position in FIG. 8) in which the tip is stored in the slit-shaped groove 36a of the back bar 36 by the fluid pressure cylinder 46 for the center plate attached to the back surface of the back jig main body 35. , The tip of the center plate 37 moves in the front-rear direction (vertical direction in FIG. 8) over the protruding position (one-dot chain line position in FIG. 8) protruding from the front surface of the back bar 36 forward by about several millimeters. ing.

前記左右のクランプ３８は、先行の帯状金属薄板Ｗ１の後端部と後行の帯状金属薄板Ｗ２の先端部とをそれぞれ背面治具本体３５の前面へ密着状態で保持固定するものであり、背面治具本体３５に配設されている。 The left and right clamps 38 hold and fix the rear end portion of the preceding strip-shaped metal thin plate W1 and the tip portion of the trailing strip-shaped metal thin plate W2 to the front surface of the back jig body 35 in close contact with each other. It is arranged on the jig body 35.

即ち、左右のクランプ３８は、図５〜図７に示す如く、背面治具本体３５の下端部前面の左右位置に前後方向（図６の左右方向、図７の上下方向）へ移動可能に配設されており、背面治具本体３５の背面に固定されたクランプ用流体圧シリンダ３８ａと、クランプ用流体圧シリンダ３８ａのロッドに連結され、背面治具本体３５に支持された帯状金属薄板Ｗ１，Ｗ２の前面に当接し得るクランプ板３８ｂと、クランプ板３８ｂの背面に貼り付けたウレタン部材等のクッション材３８ｃとを備えている。 That is, as shown in FIGS. 5 to 7, the left and right clamps 38 are arranged so as to be movable in the front-rear direction (horizontal direction in FIG. 6 and vertical direction in FIG. 7) at the left and right positions on the front surface of the lower end portion of the rear jig body 35. A strip-shaped metal thin plate W1, which is provided and is connected to a clamp fluid pressure cylinder 38a fixed to the back surface of the back jig body 35 and a rod of the clamp fluid pressure cylinder 38a and supported by the back jig body 35. A clamp plate 38b that can come into contact with the front surface of the W2 and a cushion material 38c such as a urethane member attached to the back surface of the clamp plate 38b are provided.

而して、前記左右のクランプ３８によれば、クランプ用流体圧シリンダ３８ａの伸長時には、クランプ板３８ｂと背面治具本体３５の前面との間に帯状金属薄板Ｗ１，Ｗ２の下辺を挿入できる間隙（図６及び図７参照）が形成され、また、クランプ用流体圧シリンダ３８ａの短縮時には、クランプ板３８ｂが後方（図６の左方向、図７の下方向）へ移動してクランプ板３８ｂの下面に貼り付けたクッション材３８ｃにより帯状金属薄板Ｗ１，Ｗ２を背面治具本体３５の前面へ保持固定するようになっている。 Therefore, according to the left and right clamps 38, when the clamp fluid pressure cylinder 38a is extended, a gap through which the lower sides of the strip-shaped metal thin plates W1 and W2 can be inserted between the clamp plate 38b and the front surface of the back jig main body 35. (See FIGS. 6 and 7) are formed, and when the clamping fluid pressure cylinder 38a is shortened, the clamp plate 38b moves rearward (to the left in FIG. 6 and downward in FIG. 7) to form the clamp plate 38b. The strip-shaped metal thin plates W1 and W2 are held and fixed to the front surface of the back jig main body 35 by the cushion material 38c attached to the lower surface.

前記溶接用真空吸引機構３９は、図５に示す如く、背面治具本体３５のバックバー３６の両側に位置する部分に配設されており、先行の帯状金属薄板Ｗ１の後端部及び後行の帯状金属薄板Ｗ２の先端部を背面側から真空吸着により背面治具本体３５の前面へ吸引保持するものである。 As shown in FIG. 5, the welding vacuum suction mechanism 39 is arranged at portions located on both sides of the back bar 36 of the back jig main body 35, and is the rear end portion and the trailing portion of the preceding strip-shaped metal thin plate W1. The tip of the strip-shaped metal thin plate W2 is sucked and held from the back side to the front surface of the back jig main body 35 by vacuum suction.

即ち、溶接用真空吸引機構３９は、背面治具本体３５のバックバー３６の両側位置に埋設状態で設けられ、帯状金属薄板Ｗ１，Ｗ２の幅方向に一定の間隔を空けて直列状に配置されると共に、真空吸引により帯状金属薄板Ｗ１，Ｗ２の背面を吸引する複数の真空吸着盤３９ａと、各真空吸着盤３９ａにマニホールド３９ｂ、配管（図示省略）及び電磁弁（図示省略）等を介して接続された真空ポンプ（図示省略）とを備えており、帯状金属薄板Ｗ１，Ｗ２の幅に応じて適宜の真空吸着盤３９ａ（帯状金属薄板Ｗ１，Ｗ２に対向する真空吸着盤３９ａのみ）が作動するように構成されている。 That is, the vacuum suction mechanism 39 for welding is provided in a state of being embedded at both side positions of the back bar 36 of the back jig main body 35, and is arranged in series at regular intervals in the width direction of the strip metal thin plates W1 and W2. In addition, a plurality of vacuum suction plates 39a that suck the back surfaces of the strip metal thin plates W1 and W2 by vacuum suction, and each vacuum suction plate 39a via a manifold 39b, a pipe (not shown), an electromagnetic valve (not shown), and the like. It is equipped with a connected vacuum pump (not shown), and an appropriate vacuum suction plate 39a (only the vacuum suction plate 39a facing the strip metal thin plates W1 and W2) operates according to the width of the strip metal thin plates W1 and W2. It is configured to do.

前記複数枚のクリップ板４０は、背面治具本体３５の前面に設けられており、先行の帯状金属薄板Ｗ１の後端部及び後行の帯状金属薄板Ｗ２の先端部を背面治具ユニット５にセットする際に、クリップ板４０自体の弾性力を利用して先行の帯状金属薄板Ｗ１の後端部及び後行の帯状金属薄板Ｗ２の先端部を背面治具本体３５の前面へ押圧保持するものである。 The plurality of clip plates 40 are provided on the front surface of the back jig main body 35, and the rear end portion of the preceding strip-shaped metal thin plate W1 and the tip end portion of the trailing strip-shaped metal thin plate W2 are attached to the back jig unit 5. When setting, the elastic force of the clip plate 40 itself is used to press and hold the rear end portion of the preceding strip-shaped metal thin plate W1 and the tip portion of the trailing strip-shaped metal thin plate W2 to the front surface of the back jig body 35. Is.

即ち、各クリップ板４０は、弾性を有する金属板により長方形状に形成されており、図５に示す如く、背面治具本体３５の上端部前面及び下端部前面にそれぞれ二枚ずつボルト４７により取り付けられ、各クリップ板４０の先端部が背面治具本体３５の前面へ弾性的に当接するようになっている。 That is, each clip plate 40 is formed in a rectangular shape by an elastic metal plate, and as shown in FIG. 5, two clip plates 40 are attached to the front surface of the upper end portion and the front surface of the lower end portion of the back jig body 35 by bolts 47, respectively. The tip of each clip plate 40 is elastically in contact with the front surface of the back jig body 35.

背面治具本体３５の上端部前面に取り付けた二枚のクリップ板４０は、特に幅が広い先行の帯状金属薄板Ｗ１の後端部上辺及び後行の帯状金属薄板Ｗ２の先端部上辺を背面治具本体３５の前面へ押圧保持するものであり、両帯状金属薄板Ｗ１，Ｗ２の上辺をそれぞれ二枚のクリップ板４０の下端部と背面治具本体３５の前面との間に挿入することによって、両帯状金属薄板Ｗ１，Ｗ２の上辺を背面治具本体３５の前面へ押圧保持することができる。 The two clip plates 40 attached to the front surface of the upper end of the back jig body 35 cure the upper side of the rear end of the leading strip metal thin plate W1 and the upper side of the tip of the trailing strip metal thin plate W2, which are particularly wide. It is pressed and held to the front surface of the tool body 35, and by inserting the upper sides of both strip-shaped metal thin plates W1 and W2 between the lower ends of the two clip plates 40 and the front surface of the back jig body 35, respectively. The upper sides of both strip-shaped metal thin plates W1 and W2 can be pressed and held to the front surface of the back jig body 35.

一方、背面治具本体３５の下端部前面に取り付けた二枚のクリップ板４０は、先行の帯状金属薄板Ｗ１の後端部下辺及び後行の帯状金属薄板Ｗ２の先端部下辺を背面治具本体３５の前面へ押圧保持するものであり、両帯状金属薄板Ｗ１，Ｗ２の下辺をそれぞれ二枚のクリップ板４０の上端部と背面治具本体３５の前面との間に挿入することによって、両帯状金属薄板Ｗ１，Ｗ２の下辺を背面治具本体３５の前面へ押圧保持することができる。 On the other hand, the two clip plates 40 attached to the front surface of the lower end portion of the back jig main body 35 have the lower side of the rear end portion of the preceding strip-shaped metal thin plate W1 and the lower side of the tip portion of the trailing strip-shaped metal thin plate W2 as the back jig main body. It is pressed and held to the front surface of the 35, and by inserting the lower sides of the two strip-shaped metal thin plates W1 and W2 between the upper ends of the two clip plates 40 and the front surface of the back jig body 35, both strips are formed. The lower sides of the thin metal plates W1 and W2 can be pressed and held against the front surface of the back jig body 35.

前記スタートタブ４１は、バークバー３６の下端部に設けられており、初期アークを発生させるものである。このスタートタブ４１は、銅材により形成されており、バックバー３６の下端部にバックバー３６の前面に対して突出量を調整できるように埋設状態で設けられている。 The start tab 41 is provided at the lower end of the bark bar 36 and generates an initial arc. The start tab 41 is made of a copper material, and is provided at the lower end of the back bar 36 in a state of being embedded so that the amount of protrusion with respect to the front surface of the back bar 36 can be adjusted.

前記左右の前部クランプ６は、ボックス状の下部正面カバー１３内に収納されて上下移動台１２の前方位置で上下方向（帯状金属薄板Ｗ１，Ｗ２の幅方向）へ移動する溶接装置７の略枠状のフレーム５０の背面に、両帯状金属薄板Ｗ１，Ｗ２の幅方向に沿う姿勢で且つ所定の間隙を空けて対向状に配設されており、鋭角状に形成した先端部が両帯状金属薄板Ｗ１，Ｗ２の突合せ部近傍の前面へそれぞれ当接するようになっている（図１３参照）。この左右の前部クランプ６は、両帯状金属薄板Ｗ１，Ｗ２の突合せ部を溶接する際に、主にアークの拡がりを遮断して両帯状金属薄板Ｗ１，Ｗ２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。 The left and right front clamps 6 are abbreviated as a welding device 7 which is housed in a box-shaped lower front cover 13 and moves in the vertical direction (width direction of strip metal thin plates W1 and W2) at a position in front of the vertical moving table 12. The two strip-shaped metal thin plates W1 and W2 are arranged on the back surface of the frame-shaped frame 50 in a posture along the width direction and facing each other with a predetermined gap, and the tip portion formed in a sharp angle is a double strip-shaped metal. The thin plates W1 and W2 are in contact with each other in the vicinity of the abutting portion (see FIG. 13). The left and right front clamps 6 mainly block the spread of the arc when welding the butt portions of the two strip metal thin plates W1 and W2, and concentrate the arc energy on the butt portions of the two strip metal thin plates W1 and W2. To give to.

また、左右の前部クランプ６は、銅材により両帯状金属薄板Ｗ１，Ｗ２の幅よりも長めの長尺板状に形成されており、左右の前部クランプ６のうち、一方の前部クランプ６（例えば、図９の右側の前部クランプ６）を帯状金属薄板Ｗ１，Ｗ２の長手方向へ移動調整可能として左右の前部クランプ６の間隔を微調整できるようにし、また、他方の前部クランプ６（例えば、図９の左側の前部クランプ６）を前後方向（図９の上下方向、図１３の上下方向）へ揺動可能とし、前部クランプ６の先端部を複数の加圧バネ（図示省略）により一方の帯状金属薄板Ｗ２の上面へ弾性的に当接させるようにしている。 Further, the left and right front clamps 6 are formed of a copper material in a long plate shape longer than the width of both strip-shaped metal thin plates W1 and W2, and one of the left and right front clamps 6 is a front clamp. 6 (for example, the front clamp 6 on the right side of FIG. 9) can be moved and adjusted in the longitudinal direction of the strip metal thin plates W1 and W2 so that the distance between the left and right front clamps 6 can be finely adjusted, and the other front part. The clamp 6 (for example, the front clamp 6 on the left side of FIG. 9) can be swung in the front-rear direction (vertical direction of FIG. 9 and the vertical direction of FIG. 13), and the tip of the front clamp 6 is made of a plurality of pressure springs. By (not shown), the upper surface of one strip-shaped metal thin plate W2 is elastically contacted.

前記溶接装置７は、上下移動台１１（又は作業テーブル２）の前面に上下方向へ往復移動自在に配設されており、下部正面カバー１３内に位置する待機位置（図１（Ａ）参照）と、下部正面カバー１３の天板に形成した開口から上方へ突出して背面治具ユニット５の前方に位置する溶接作業位置（図示省略）とを取り得るようになっている。この溶接装置７は、両帯状金属薄板Ｗ１，Ｗ２の突合せ部を突合せ溶接する際に、下部正面カバー１３内から上方へ引き出されてＴＩＧ溶接用トーチ５２が所定の速度で両帯状金属薄板Ｗ１，Ｗ２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 7 is arranged on the front surface of the vertical movement table 11 (or work table 2) so as to be reciprocally movable in the vertical direction, and is a standby position located in the lower front cover 13 (see FIG. 1 (A)). And, a welding work position (not shown) that protrudes upward from the opening formed in the top plate of the lower front cover 13 and is located in front of the back jig unit 5 can be taken. In this welding device 7, when the butt portions of the double strip metal thin plates W1 and W2 are butt welded, the TIG welding torch 52 is pulled upward from the inside of the lower front cover 13 and the double strip metal thin plates W1 and W2 are welded at a predetermined speed. It is designed to move linearly along the butt portion of W2.

即ち、溶接装置７は、図９〜図１１に示す如く、上下移動台１２（又は作業テーブル２）の前面に垂直姿勢で配設したレール台４８上にリニアガイド４９（案内レール及び案内レール上を摺動するスライダーから成る）を介して上下方向へ往復移動自在に支持された略枠状のフレーム５０と、フレーム５０を待機位置と溶接作業位置とに亘って往復移動させるロッドレスシリンダ５１と、フレーム５０に両帯状金属薄板Ｗ１，Ｗ２の幅方向に沿って往復移動自在に支持され、シールドガスＧを外側と内側に分流し且つ内側のシールドガスＧを外側のシールドガスＧより高速で噴出させるようにシールドノズル５２ｂの内側に狭窄ノズル５２ａを備えたＴＩＧ溶接用トーチ５２と、ＴＩＧ溶接用トーチ５２を両帯状金属薄板Ｗ１，Ｗ２の幅方向に沿って往復移動させるモータ５３ａ、ラック５３ｂ及びピニオンギア（図示省略）等から成るトーチ走行用駆動装置５３等から構成されている。 That is, as shown in FIGS. 9 to 11, the welding device 7 is placed on the linear guide 49 (on the guide rail and the guide rail) on the rail base 48 arranged in a vertical position on the front surface of the vertical movement table 12 (or the work table 2). A substantially frame-shaped frame 50 that is supported so as to be reciprocally movable in the vertical direction via a slider that slides on the frame 50, and a rodless cylinder 51 that reciprocates the frame 50 between a standby position and a welding work position. , The frame 50 is supported by the frame 50 so as to be reciprocally movable along the width direction of both strip-shaped metal thin plates W1 and W2, the shield gas G is divided into the outside and the inside, and the inner shield gas G is ejected at a higher speed than the outer shield gas G. A TIG welding torch 52 provided with a constriction nozzle 52a inside the shield nozzle 52b, and a motor 53a, a rack 53b, and a motor 53a, a rack 53b, which reciprocate the TIG welding torch 52 along the width directions of both strip-shaped metal thin plates W1 and W2. It is composed of a torch traveling drive device 53 and the like including pinion gears (not shown) and the like.

また、狭窄ノズル５２ａを備えたＴＩＧ溶接用トーチ５２は、図１２に示す如く、シールドノズル５２ｂと、シールドノズル５２ｂの内側に設けられ、タングステン電極棒５２ｃが同芯状に挿入される狭窄ノズル５２ａと、シールドガスＧを層流化するガスレンズ５２ｄと、タングステン電極棒５２ｃを把持するコレットチャック５２ｅと、コレットチャック５２ｅの締め付け部材５２ｆと、シールドガス供給口５２ｇとを備えており、シールドガス供給口５２ｇから供給されたシールドガスＧが、ガスレンズ５２ｄを通って狭窄ノズル５２ａとシールドノズル５２ｂの間を流れるシールドガスＧと、ガスレンズ５２ｄを通らずに狭窄ノズル５２ａの内側を流れるシールドガスＧとに分流され、狭窄ノズル５２ａの内側を流れるシールドガスＧが狭窄ノズル５２ａとシールドノズル５２ｂの間を流れるシールドガスＧより高速となって吐出されるようになっている。 Further, as shown in FIG. 12, the TIG welding torch 52 provided with the narrowing nozzle 52a is provided inside the shield nozzle 52b and the shield nozzle 52b, and the tungsten electrode rod 52c is inserted concentrically into the narrowing nozzle 52a. A gas lens 52d for stratifying the shield gas G, a collet chuck 52e for gripping the tungsten electrode rod 52c, a tightening member 52f for the collet chuck 52e, and a shield gas supply port 52g are provided to supply the shield gas. The shield gas G supplied from the mouth 52g flows through the gas lens 52d between the narrowing nozzle 52a and the shield nozzle 52b, and the shield gas G that flows inside the narrowing nozzle 52a without passing through the gas lens 52d. The shield gas G flowing inside the narrowing nozzle 52a is discharged at a higher speed than the shield gas G flowing between the narrowing nozzle 52a and the shield nozzle 52b.

前圧延装置８は、切断装置３の前面（可動側部材２３の前面）に取り付けられており、突合せ溶接した両帯状金属薄板Ｗ１，Ｗ２の溶接部を垂直姿勢の状態で圧延加工して溶接部の厚みや硬度、組織を均一化するものである。 The pre-rolling device 8 is attached to the front surface of the cutting device 3 (front surface of the movable side member 23), and the welded portions of the butt-welded double-band metal thin plates W1 and W2 are rolled in a vertical posture to form the welded portion. It is intended to make the thickness, hardness, and structure of the roll uniform.

即ち、前記圧延装置８は、図１、図１４及び図１５に示す如く、切断装置３の前面に取り付けられ、突合せ溶接した両帯状金属薄板Ｗ１，Ｗ２の溶接部が当接する垂直姿勢の圧延台５４と、圧延台５４に前方へ突出する状態で設けた水平姿勢の圧延支持軸５５と、圧延台５４に前方へ突出する状態で設けられ、圧延支持軸５５に対向する水平姿勢の取付エンド部材５６と、一端部が圧延支持軸５５に回動自在に支持されていると共に、他端部が取付エンド部材５６に着脱自在に支持され、圧延台５４の前面に位置して両帯状金属薄板Ｗ１，Ｗ２の溶接部に沿う圧延位置（図１４の実線位置及び図１５に示す位置）と作業テーブル２の前面に沿って上方へ回動して水平姿勢になる待避位置（図１９及び図２０に示す位置）とを取り得る圧延シャフト５７と、圧延シャフト５７に当該圧延シャフト５７の軸線方向へ往復移動自在に支持された圧延移動台５８と、圧延移動台５８に回転自在に設けられ、圧延台５４に当接する両帯状金属薄板Ｗ１，Ｗ２の溶接部上を転動する圧延ローラ６０と、圧延移動台５８に設けられ、圧延ローラ６０を圧延台５４側へ加圧する加圧手段６１と、圧延台５４に設けられ、圧延位置から待避位置に回動した圧延シャフト５７を待避位置に保持するシャフト保持機構６２と、を備えている。 That is, as shown in FIGS. 1, 14 and 15, the rolling apparatus 8 is a rolling table in a vertical posture in which the welded portions of both butt-welded strip-shaped metal thin plates W1 and W2 are attached to the front surface of the cutting apparatus 3 and are in contact with each other. The 54, the rolling support shaft 55 in a horizontal posture provided on the rolling table 54 in a state of projecting forward, and the mounting end member in a horizontal posture provided on the rolling table 54 in a state of projecting forward and facing the rolling support shaft 55. 56 and one end are rotatably supported by the rolling support shaft 55, and the other end is detachably supported by the mounting end member 56, and are located in front of the rolling table 54 and are both strip-shaped metal thin plates W1. , The rolling position along the welded part of W2 (the solid line position in FIG. 14 and the position shown in FIG. 15) and the retreat position (in FIGS. 19 and 20) which rotates upward along the front surface of the work table 2 and becomes a horizontal posture. A rolling shaft 57 that can take the position shown), a rolling moving table 58 that is rotatably supported on the rolling shaft 57 in the axial direction of the rolling shaft 57, and a rolling table that is rotatably provided on the rolling moving table 58. A rolling roller 60 that rolls on the welded portions of both strip-shaped metal thin plates W1 and W2 that come into contact with 54, a pressurizing means 61 that is provided on the rolling moving table 58 and pressurizes the rolling roller 60 toward the rolling table 54, and rolling. It is provided on the table 54 and includes a shaft holding mechanism 62 for holding the rolled shaft 57 rotated from the rolling position to the retreat position in the retreat position.

具体的には、前記圧延台５４は、図１４及び図１５に示す如く、金属材により厚肉の長尺板状に形成されており、切断装置３の前面である可動側部材２３の前面に複数本のボルト（図示省略）により可動側部材２３に沿う姿勢で固定されている。 Specifically, as shown in FIGS. 14 and 15, the rolling table 54 is formed of a metal material in the shape of a thick long plate, and is formed on the front surface of the movable side member 23 which is the front surface of the cutting device 3. It is fixed in a posture along the movable side member 23 by a plurality of bolts (not shown).

前記圧延支持軸５５は、図１５及び図２０に示す如く、金属材により円柱状に形成されており、圧延支持軸５５の一端部には、圧延台５４に螺着固定される小径の雄ネジ部５５ａが突出形成され、また、圧延支持軸５５の他端部には、圧延シャフト５７の一端部が回動自在に取り付けられる小径の軸部５５ｂが突出形成されている。 As shown in FIGS. 15 and 20, the rolling support shaft 55 is formed in a columnar shape made of a metal material, and a small-diameter male screw is screwed and fixed to a rolling table 54 at one end of the rolling support shaft 55. A protruding portion 55a is formed, and a small-diameter shaft portion 55b to which one end of the rolling shaft 57 is rotatably attached is formed at the other end of the rolling support shaft 55.

この圧延支持軸５５は、その雄ネジ部５５ａを圧延台５４の上端部に形成した雌ネジ穴に螺着することによって、圧延台５４の上端部に前方へ突出する水平姿勢の状態で取り付けられている。 The rolling support shaft 55 is attached to the upper end of the rolling table 54 in a horizontal posture by screwing the male screw portion 55a into the female screw hole formed at the upper end of the rolling table 54. ing.

前記取付エンド部材５６は、図１４、図１５及び図１８に示す如く、金属材により長方形の板状に形成され、圧延台５４の下端部に複数本のボルト６３により前方へ突出する水平姿勢の状態で固定された取付エンド板５６′と、金属材により板状に形成され、取付エンド板５６′の圧延支持軸５５に対向する面（取付エンド板５６′の上面）に複数本のボルト６４により固定された案内板５６″とを備えている。 As shown in FIGS. 14, 15 and 18, the mounting end member 56 is formed of a metal material in a rectangular plate shape, and is in a horizontal posture in which a plurality of bolts 63 project forward at the lower end of the rolling table 54. A plurality of bolts 64 on the surface (upper surface of the mounting end plate 56') facing the rolling support shaft 55 of the mounting end plate 56', which is formed in a rectangular shape by the mounting end plate 56'fixed in the state and a metal material. It is provided with a guide plate 56 ″ fixed by.

また、取付エンド部材５６の案内板５６″には、図１８に示す如く、圧延シャフト５７の他端部が抜き差し自在に挿入係止されるＵ字状の案内溝５６ａが形成されていると共に、Ｕ字状の案内溝５６ａに挿入された圧延シャフト５７の他端部を抜け止めするための止めネジ６５が螺挿されている。この案内板５６″に形成したＵ字状の案内溝５６ａは、圧延支持軸５５の小径の軸部５５ｂに対向し且つ作業テーブル２の左右方向を向くようになっている。 Further, as shown in FIG. 18, the guide plate 56 ″ of the mounting end member 56 is formed with a U-shaped guide groove 56a in which the other end of the rolling shaft 57 is freely inserted and removed and locked. A set screw 65 for preventing the other end of the rolling shaft 57 inserted into the U-shaped guide groove 56a is screwed in. The U-shaped guide groove 56a formed in the guide plate 56 ″ is formed. , It faces the small diameter shaft portion 55b of the rolling support shaft 55 and faces the left and right direction of the work table 2.

尚、上記の実施形態においては、取付エンド部材５６は、取付エンド板５６′と案内板５６″とを別体に形成し、両者をボルト６４により固定するようにしたが、他の実施形態においては、取付エンド部材５６は、取付エンド板５６′と案内板５６″とを一体的に形成するようにしても良い。 In the above embodiment, the mounting end member 56 is formed by forming the mounting end plate 56 ′ and the guide plate 56 ″ as separate bodies and fixing them with bolts 64, but in other embodiments, the mounting end member 56 is formed as a separate body. The mounting end member 56 may integrally form the mounting end plate 56 ′ and the guide plate 56 ″.

前記圧延シャフト５７は、図１５及び図２０に示す如く、金属材により棒状に形成されており、圧延シャフト５７の一端部（上端部）が圧延支持軸５５の小径の軸部５５ｂに挿通され、二つのスラストベアリング６６を介して回転自在に支持されている。この圧延シャフト５７の一端部（上端部）は、小径の軸部５５ｂ端面に螺着した抜け止めボルト８２により抜け止めされている。また、圧延シャフト５７の他端部（下端部）は、取付エンド部材５６のＵ字状の案内溝５６ａに抜き差し自在に挿入されている。 As shown in FIGS. 15 and 20, the rolling shaft 57 is formed in a rod shape by a metal material, and one end (upper end) of the rolling shaft 57 is inserted into a small diameter shaft portion 55b of the rolling support shaft 55. It is rotatably supported via two thrust bearings 66. One end (upper end) of the rolled shaft 57 is prevented from coming off by a retaining bolt 82 screwed to the end surface of the shaft portion 55b having a small diameter. Further, the other end (lower end) of the rolling shaft 57 is freely inserted and removed from the U-shaped guide groove 56a of the mounting end member 56.

そして、圧延シャフト５７は、当該圧延シャフト５７の下端部を取付エンド部材５６のＵ字状の案内溝５６ａに挿入し、止めネジ６５を締め付けることによって、圧延台５４の前面に位置する両帯状金属薄板Ｗ１，Ｗ２の溶接部に沿う圧延位置を取り、また、止めネジ６５を緩め、圧延シャフト５７の下端部をＵ字状の案内溝５６ａから引き抜いて作業テーブル２の前面に沿って上方へ回動させることによって、水平姿勢になる待避位置を取るようになっている。圧延シャフト５７が圧延位置のときには、圧延シャフト５７は圧延台５４と平行になっている。また、圧延シャフト５７が待避位置のときには、圧延シャフト５７は両帯状金属薄板Ｗ１，Ｗ２と干渉しないようになっている。 Then, in the rolling shaft 57, the lower end portion of the rolling shaft 57 is inserted into the U-shaped guide groove 56a of the mounting end member 56, and the set screw 65 is tightened, whereby the double strip metal located on the front surface of the rolling table 54. Take a rolling position along the welded portion of the thin plates W1 and W2, loosen the set screw 65, pull out the lower end of the rolling shaft 57 from the U-shaped guide groove 56a, and rotate it upward along the front surface of the work table 2. By moving it, it takes a shunting position to be in a horizontal position. When the rolling shaft 57 is in the rolling position, the rolling shaft 57 is parallel to the rolling table 54. Further, when the rolling shaft 57 is in the retracting position, the rolling shaft 57 does not interfere with both strip-shaped metal thin plates W1 and W2.

尚、本実施形態においては、圧延シャフト５７には、従来公知のボールスプラインのスプライン軸５７が使用されている。ボールスプラインは、軸線方向に沿う軸溝を形成したスプライン軸５７と、スプライン軸５７が挿通され、内部に保持器（図示省略）及び複数個の転動体（図示省略）等が組み込まれた外筒体６７とを備えており、外筒体６７がスプライン軸５７に対して軸方向へ相対的に移動するときに、受ける摩擦力が転動体の転がり摩擦だけであるので、滑らかに移動することができるようになっている。 In the present embodiment, a conventionally known ball spline spline shaft 57 is used for the rolling shaft 57. The ball spline is an outer cylinder in which a spline shaft 57 having an axial groove formed along the axial direction and a spline shaft 57 are inserted, and a cage (not shown) and a plurality of rolling elements (not shown) are incorporated therein. The body 67 is provided, and when the outer cylinder 67 moves relative to the spline shaft 57 in the axial direction, the frictional force received is only the rolling friction of the rolling element, so that the outer cylinder 67 can move smoothly. You can do it.

前記圧延移動台５８は、図１４及び図１５に示す如く、金属材によりブロック状に形成されており、圧延移動台５８の中心部に挿着したボールスプラインの外筒体６７を介して圧延シャフト５７にその軸線方向へ沿って往復移動自在に支持されている。 As shown in FIGS. 14 and 15, the rolling moving table 58 is formed of a metal material in a block shape, and the rolling shaft is interposed via an outer cylinder 67 of a ball spline inserted into the center of the rolling moving table 58. It is supported by 57 so as to be reciprocally movable along its axial direction.

この圧延移動台５８の前面には、圧延移動台５８を圧延シャフト５７に沿って移動操作するための球状の取っ手５９が設けられ、また、圧延移動台５８の背面には、圧延ローラ６０を取り付けるための支持片５８ａが後方へ向って一体的に突出形成されている。 A spherical handle 59 for moving the rolling moving table 58 along the rolling shaft 57 is provided on the front surface of the rolling moving table 58, and a rolling roller 60 is attached to the back surface of the rolling moving table 58. The support piece 58a for the purpose is integrally projected toward the rear.

前記圧延ローラ６０は、図１５及び図１７に示す如く、圧延移動台５８の支持片５８ａの両側面に支持軸６８を介して前後方向（図１５の左右方向）へ揺動自在に支持された一対のローラ側板６９間に回転自在に取り付けられており、一対のローラ側板６９間に水平姿勢で架設したローラ軸７０にベアリング（図示省略）を介してローラ軸７０の軸線回りに回転自在に支持され、その外周縁部が一対のローラ側板６９の前面、背面及び下面から外方へ突出している。 As shown in FIGS. 15 and 17, the rolling roller 60 is swingably supported on both side surfaces of the support piece 58a of the rolling transfer table 58 in the front-rear direction (horizontal direction in FIG. 15) via the support shaft 68. It is rotatably attached between the pair of roller side plates 69, and is rotatably supported around the axis of the roller shaft 70 via a bearing (not shown) on the roller shaft 70 erected between the pair of roller side plates 69 in a horizontal posture. The outer peripheral edge thereof protrudes outward from the front surface, the back surface, and the lower surface of the pair of roller side plates 69.

また、圧延ローラ６０を支持するローラ軸７０は、圧延台５４の前面に当接する両帯状金属薄板Ｗ１，Ｗ２の溶接部に直交する水平姿勢となっている。その結果、圧延ローラ６０は、圧延台５４の前面に当接する両帯状金属薄板Ｗ１，Ｗ２の溶接部上を転動することになる。 Further, the roller shaft 70 that supports the rolling roller 60 is in a horizontal posture orthogonal to the welded portion of both strip-shaped metal thin plates W1 and W2 that abut on the front surface of the rolling table 54. As a result, the rolling roller 60 rolls on the welded portion of both strip-shaped metal thin plates W1 and W2 that abut on the front surface of the rolling table 54.

前記加圧手段６１は、図１５及び図１７に示す如く、圧延移動台５８の背面側に形成した二つのスプリング収納穴５８ｂに挿入され、一端部がスプリング収納穴５８ｂから突出して一対のローラ側板６９の前面にそれぞれ弾性的に当接する一対の圧縮コイルスプリング６０から成り、一対のローラ側板６９を圧延台５４側へ押圧付勢することによって、圧延ローラ６０を圧延台５４側へ加圧するようになっている。 As shown in FIGS. 15 and 17, the pressurizing means 61 is inserted into two spring storage holes 58b formed on the back side of the rolling moving table 58, and one end of the pressurizing means 61 projects from the spring storage holes 58b and a pair of roller side plates. It is composed of a pair of compression coil springs 60 that elastically abut on the front surface of the 69, and by pressing and urging the pair of roller side plates 69 toward the rolling table 54 side, the rolling roller 60 is pressed toward the rolling table 54 side. It has become.

前記シャフト保持機構６２は、図１４〜図１６、図１９〜図２１に示す如く、圧延支持軸５５の基端部に圧延台５４の上端部前面に接触する状態で取り付けられ、圧延台５４に直交する状態の金属製の連結板７１と、連結板７１の先端部に複数本のボルト７２により前方へ突出する状態で固定され、圧延シャフト５７の一部が抜き差し自在に挿入される下向きのＵ字状の凹部７３ａを形成した金属製の保持具７３と、保持具７３に設けられ、保持具７３のＵ字状の凹部７３ａに挿入された圧延シャフト５７をＵ字状の凹部７３ａから抜け止めする締め付け具７４とを備えている。 As shown in FIGS. 14 to 16 and 19 to 21, the shaft holding mechanism 62 is attached to the base end portion of the rolling support shaft 55 in a state of being in contact with the front surface of the upper end portion of the rolling table 54, and is attached to the rolling table 54. A downward U that is fixed to the tip of the metal connecting plate 71 in an orthogonal state by a plurality of bolts 72 so as to project forward, and a part of the rolling shaft 57 is inserted and removed freely. A metal holder 73 having a character-shaped recess 73a and a rolling shaft 57 provided in the holder 73 and inserted into the U-shaped recess 73a of the holder 73 are prevented from coming off from the U-shaped recess 73a. A fastener 74 for rolling is provided.

また、連結板７１は、図１６に示す如く、圧延支持軸５５の雄ネジ部５５ａ近傍の外周面に形成した環状のＶ溝５５ｃに連結板７１に螺着した複数本の止めネジ７５の先端部を締め付け固定することによって、圧延支持軸５５に強固に取り付けられている。 Further, as shown in FIG. 16, the connecting plate 71 has the tips of a plurality of set screws 75 screwed onto the connecting plate 71 in an annular V groove 55c formed on the outer peripheral surface of the rolling support shaft 55 near the male screw portion 55a. By tightening and fixing the portion, it is firmly attached to the rolling support shaft 55.

更に、締め付け具７４には、ノブ付きボルト７４が使用されており、保持具７３に螺着したノブ付きボルト７４を締め付け操作し、保持具７３のＵ字状の凹部７３ａに挿入された圧延シャフト５７をＵ字状の凹部７３ａ内へ押圧することによって、圧延シャフト５７を待避位置に保持できるようになっている。 Further, a bolt with a knob 74 is used for the fastener 74, and a rolling shaft inserted into the U-shaped recess 73a of the holder 73 by tightening the bolt with a knob 74 screwed to the holder 73. By pressing the 57 into the U-shaped recess 73a, the rolling shaft 57 can be held in the retracted position.

尚、図１において、７６は上部正面カバー１５に設けられ、上下移動台１２が上下動するときに上部正面カバー１５と上下移動台１２の上端部との間に形成される開口を引き出し可能なスクリーン７６ａにより覆うロールカーテンである。 In FIG. 1, 76 is provided on the upper front cover 15 and can pull out an opening formed between the upper front cover 15 and the upper end portion of the vertical moving table 12 when the vertical moving table 12 moves up and down. A roll curtain covered by a screen 76a.

次に、上述した縦型突合せ溶接装置を用いて先行の帯状金属薄板Ｗ１と後行の帯状金属薄板Ｗ２を突合せ溶接により接合する場合について説明する。 Next, a case where the preceding strip-shaped metal thin plate W1 and the trailing strip-shaped metal thin plate W2 are joined by butt welding using the above-mentioned vertical butt welding apparatus will be described.

先ず、待機位置にある切断装置３を切断作業位置に前進させ、切断装置３により先行の帯状金属薄板Ｗ１の後端部と後行の帯状金属薄板Ｗ２の先端部とをそれぞれ幅方向に沿って順次切断する。切断装置３は、両帯状金属薄板Ｗ１，Ｗ２を切断した後、切断作業位置から待機位置へ後退させる。 First, the cutting device 3 in the standby position is advanced to the cutting work position, and the cutting device 3 moves the rear end portion of the preceding strip-shaped metal thin plate W1 and the tip portion of the trailing strip-shaped metal thin plate W2 along the width direction. Cut in sequence. After cutting both strip-shaped metal thin plates W1 and W2, the cutting device 3 retracts from the cutting work position to the standby position.

尚、切断装置３により両帯状金属薄板Ｗ１，Ｗ２をそれぞれ切断する際には、作業テーブル２に設けた切断用真空吸引機構４を作動させ、先行の帯状金属薄板Ｗ１の後端部又は後行の帯状金属薄板Ｗ２の先端部を作業テーブル２の前面にそれぞれ吸引保持する。その結果、垂直姿勢の両帯状金属薄板Ｗ１，Ｗ２であっても、作業テーブル２の前面に確実且つ良好に吸引保持することができ、切断装置３による帯状金属薄板Ｗ１，Ｗ２の切断処理を高精度で行うことができる。 When both strip-shaped metal thin plates W1 and W2 are cut by the cutting device 3, the cutting vacuum suction mechanism 4 provided on the work table 2 is operated to operate the rear end portion or the trailing portion of the preceding strip-shaped metal thin plate W1. The tip of the strip-shaped metal thin plate W2 is suction-held on the front surface of the work table 2. As a result, even the double strip metal thin plates W1 and W2 in the vertical posture can be reliably and satisfactorily sucked and held on the front surface of the work table 2, and the cutting process of the strip metal thin plates W1 and W2 by the cutting device 3 is high. It can be done with precision.

次に、センタープレート３７をセンタープレート用流体圧シリンダ４６により前進させ、センタープレート３７の先端部をバックバー３６の前面よりも前方へ突出させる。 Next, the center plate 37 is advanced by the center plate fluid pressure cylinder 46, and the tip end portion of the center plate 37 is projected forward from the front surface of the back bar 36.

センタープレート３７の先端をバックバー３６の前面よりも前方へ突出させたら、先行の帯状金属薄板Ｗ１の後端部下辺を、右側のクランプ３８のクランプ板３８ｂと背面治具本体３５との間及び右側のクリップ板４０の上端部と背面治具本体３５との間にそれぞれ挿入し、先行の帯状金属薄板Ｗ１の後端部下辺を作業テーブル２に設けた右側の位置決めストッパー１９に当接させて先行の帯状金属薄板Ｗ１の幅方向（上下方向）の位置決めした後、先行の帯状金属薄板Ｗ１の切断した後端をセンタープレート３７の一方の側面に押し当てると共に、先行の帯状金属薄板Ｗ１の下辺先端をスタートタブ４１に押し当て、この状態で右側のクランプ３８を作動させて先行の帯状金属薄板Ｗ１の後端部下辺を、右側のクランプ３８により背面治具本体３５の前面及び作業テーブル２の前面へ密着状に保持固定する。また、背面治具ユニット５に設けた右側の溶接用真空吸引機構３９を作動させ、先行の帯状金属薄板Ｗ１の後端部を背面治具本体３４の前面に吸引保持する。 When the tip of the center plate 37 is projected forward from the front surface of the back bar 36, the lower side of the rear end portion of the preceding strip-shaped metal thin plate W1 is placed between the clamp plate 38b of the clamp 38 on the right side and the back jig body 35. Insert each between the upper end of the right clip plate 40 and the back jig body 35, and bring the lower side of the rear end of the preceding strip-shaped metal thin plate W1 into contact with the right positioning stopper 19 provided on the work table 2. After positioning the preceding strip-shaped metal thin plate W1 in the width direction (vertical direction), the cut rear end of the preceding strip-shaped metal thin plate W1 is pressed against one side surface of the center plate 37, and the lower side of the preceding strip-shaped metal thin plate W1 is pressed. The tip is pressed against the start tab 41, and in this state, the clamp 38 on the right side is operated to move the lower side of the rear end portion of the preceding strip-shaped metal thin plate W1 to the front surface of the back jig body 35 and the work table 2 by the clamp 38 on the right side. Hold and fix in close contact with the front surface. Further, the right welding vacuum suction mechanism 39 provided on the back jig unit 5 is operated to suck and hold the rear end portion of the preceding strip-shaped metal thin plate W1 on the front surface of the back jig main body 34.

その後、センタープレート３７をセンタープレート用流体圧シリンダ４６により後退させてバックバー３６内に収納し、後行の帯状金属薄板Ｗ２の先端部下辺を、左側のクランプ３８のクランプ板３８ｂと背面治具本体３５との間及び左側のクリップ板４０の上端部と背面治具本体３５との間にそれぞれ挿入し、作業テーブル２に設けた左側の位置決めストッパー１９に当接させて後行の帯状金属薄板Ｗ２の幅方向（上下方向）の位置決めをした後、後行の帯状金属薄板Ｗ２の切断した先端を目視によって先に背面治具本体３４の前面及び作業テーブル２の前面に保持固定した先行の帯状金属薄板Ｗ１の後端に突き合せると共に、先行の帯状金属薄板Ｗ１の下辺先端をスタートタブ４１に押し当て、この状態で左側のクランプ３８を作動させて後行の帯状金属薄板Ｗ２の先端部を、左側のクランプ３８により背面治具本体３４の前面及び作業テーブル２の前面へ密着状に保持固定する。また、背面治具ユニット５に設けた左側の溶接用真空吸引機構３９を作動させ、後行の帯状金属薄板Ｗ２の先端部を背面治具本体３５の前面に吸引保持する。 After that, the center plate 37 is retracted by the fluid pressure cylinder 46 for the center plate and stored in the back bar 36, and the lower side of the tip portion of the trailing strip metal thin plate W2 is placed on the clamp plate 38b of the left clamp 38 and the back jig. Insert it between the main body 35 and between the upper end of the clip plate 40 on the left side and the back jig main body 35, respectively, and bring it into contact with the positioning stopper 19 on the left side provided on the work table 2 to make a trailing strip metal thin plate. After positioning the W2 in the width direction (vertical direction), the cut tip of the trailing strip metal thin plate W2 is visually held and fixed to the front surface of the back jig body 34 and the front surface of the work table 2. While abutting against the rear end of the metal thin plate W1, the lower end of the preceding strip metal thin plate W1 is pressed against the start tab 41, and in this state, the left clamp 38 is operated to press the tip of the trailing strip metal thin plate W2. , The clamp 38 on the left side firmly holds and fixes the back jig body 34 to the front surface and the front surface of the work table 2. Further, the left welding vacuum suction mechanism 39 provided on the back jig unit 5 is operated to suck and hold the tip end portion of the trailing strip-shaped metal thin plate W2 on the front surface of the back jig body 35.

尚、先行の帯状金属薄板Ｗ１の後端部及び後行の帯状金属薄板Ｗ２の先端部を背面治具ユニット５にセットする際に、クリップ板４０を用いて先行の帯状金属薄板Ｗ１の後端部及び後行の帯状金属薄板Ｗ２の先端部を背面治具本体３５の前面へ押圧保持するようにしているため、両帯状金属薄板Ｗ１，Ｗ２を作業員が常時保持しておく必要もなく、両帯状金属薄板Ｗ１，Ｗ２のセットを行い易くなる。 When setting the rear end portion of the preceding strip-shaped metal thin plate W1 and the tip portion of the trailing strip-shaped metal thin plate W2 on the back jig unit 5, the rear end of the preceding strip-shaped metal thin plate W1 is used by using the clip plate 40. Since the tip of the strip-shaped metal thin plate W2 behind the portion and the trailing portion is pressed and held toward the front surface of the back jig main body 35, it is not necessary for the worker to always hold both the strip-shaped metal thin plates W1 and W2. It becomes easy to set both strip-shaped metal thin plates W1 and W2.

また、背面治具ユニット５が溶接用真空吸引機構３９を備えているため、垂直姿勢の両帯状金属薄板Ｗ１，Ｗ２であっても、背面治具ユニット５の前面に確実且つ良好に吸引保持することができ、両帯状金属薄板Ｗ１，Ｗ２の突合せ精度を保つことができる。 Further, since the back jig unit 5 is provided with a vacuum suction mechanism 39 for welding, even if the double strip metal thin plates W1 and W2 are in a vertical posture, the back jig unit 5 is surely and satisfactorily sucked and held on the front surface. This makes it possible to maintain the matching accuracy of both strip-shaped metal thin plates W1 and W2.

そして、先行の帯状金属薄板Ｗ１の後端と後行の帯状金属薄板Ｗ２の先端とがバックバー３６の前面で突き合せ固定されたら、溶接装置７を待機位置から溶接作業位置へ上昇させ、左右の前部クランプ６を両帯状金属薄板Ｗ１，Ｗ２の突合せ部の前方位置へ移動させる。この状態で背面治具本体３５を背面治具本体用流体圧シリンダ４５により突出位置へ前進させ、背面治具本体３５の前面の位置を固定状態になっている一方の前部クランプ６の背面側先端の位置と略同じ位置にする。これにより、両帯状金属薄板Ｗ１，Ｗ２の突合せ部近傍が左右の前部クランプ６と背面治具本体３５に設けたバックバー３６とにより前後方向から挾持固定されることになる。 Then, when the rear end of the preceding strip-shaped metal thin plate W1 and the tip of the trailing strip-shaped metal thin plate W2 are abutted and fixed at the front surface of the back bar 36, the welding device 7 is raised from the standby position to the welding work position to the left and right. The front clamp 6 of the above is moved to the front position of the butt portion of both strip-shaped metal thin plates W1 and W2. In this state, the back jig body 35 is advanced to the protruding position by the fluid pressure cylinder 45 for the back jig body, and the front position of the back jig body 35 is fixed on the back side of one front clamp 6. Make it almost the same position as the tip. As a result, the vicinity of the abutting portion of both strip-shaped metal thin plates W1 and W2 is held and fixed from the front-rear direction by the left and right front clamps 6 and the back bar 36 provided on the back jig main body 35.

両帯状金属薄板Ｗ１，Ｗ２の突合せ部近傍が左右の前部クランプ６と背面治具本体３５に設けたバックバー３６とにより前後方向から挾持固定されたら、溶接装置７のＴＩＧ溶接用トーチ５２の前後位置を調整した後、溶接用トーチ５２のタングステン電極棒５２ｃ先端とスタートタブ４１との間にアークを発生させる。アークが安定したら、この状態で溶接用トーチ５２を帯状金属薄板Ｗ１，Ｗ２の幅方向に沿って移動させ、両帯状金属薄板Ｗ１，Ｗ２の突合せ部を突合せ溶接する。 When the vicinity of the abutting portion of both strip-shaped metal thin plates W1 and W2 is held and fixed from the front-rear direction by the left and right front clamps 6 and the back bar 36 provided on the back jig body 35, the TIG welding torch 52 of the welding device 7 is used. After adjusting the front-rear position, an arc is generated between the tip of the tungsten electrode rod 52c of the welding torch 52 and the start tab 41. When the arc is stable, the welding torch 52 is moved along the width direction of the strip metal thin plates W1 and W2 in this state, and the butt portions of both strip metal thin plates W1 and W2 are butt-welded.

このとき、ＴＩＧ溶接用トーチ５２は、狭窄ノズル５２ａを備えているため、アークに作用する電磁力及び磁界を強化してアークのエネルギー密度、アークの指向性及び硬直性を高めて安定したアークが得られることになり、その結果、溶接速度を高めることができるうえ、ビード幅が裏表とも均一で且つビードの波形の間隔が等間隔に形成されることになり、垂直姿勢の帯状金属薄板Ｗ１，Ｗ２を突合せ溶接しても、溶融プールが垂れ下がることがなく、高品質の安定した溶接を行える。 At this time, since the TIG welding torch 52 is provided with a narrowing nozzle 52a, the electromagnetic force and magnetic field acting on the arc are strengthened to enhance the energy density of the arc, the directivity and rigidity of the arc, and a stable arc is produced. As a result, the welding speed can be increased, the bead width is uniform on both the front and back sides, and the bead waveforms are formed at equal intervals, and the strip-shaped metal thin plate W1 in a vertical posture is formed. Even if W2 is butt welded, the molten pool does not hang down, and high quality and stable welding can be performed.

両帯状金属薄板Ｗ１，Ｗ２の突合せ部の突合せ溶接が終了したら、アーク及びシールドガスＧが停止され、背面治具本体３５が後退すると共に、溶接装置７が溶接作業位置から待機位置へ後退する。また、左右のクランプ３８及び溶接用真空吸引機構３９による両帯状金属薄板Ｗ１，Ｗ２の保持固定状態を解除する。これにより、突合せ溶接された両帯状金属薄板Ｗ１，Ｗ２は、フリーの状態となる。 When the butt welding of the butt portions of the two strip-shaped metal thin plates W1 and W2 is completed, the arc and the shield gas G are stopped, the back jig main body 35 is retracted, and the welding device 7 is retracted from the welding work position to the standby position. Further, the holding and fixing states of the double-band metal thin plates W1 and W2 are released by the left and right clamps 38 and the welding vacuum suction mechanism 39. As a result, the butt-welded double-band metal thin plates W1 and W2 are in a free state.

突合せ溶接された両帯状金属薄板Ｗ１，Ｗ２がフリーの状態になったら、両帯状金属薄板Ｗ１，Ｗ２の溶接部を圧延装置８により圧延加工する。 When the butt-welded double strip metal thin plates W1 and W2 are in a free state, the welded portions of the double strip metal thin plates W1 and W2 are rolled by the rolling apparatus 8.

即ち、突合せ溶接が終了した両帯状金属薄板Ｗ１，Ｗ２の溶接部を圧延台５４の前面に当接させ、切断用真空吸引機構４や溶接用真空吸引機構３９を作動させて両帯状金属薄板Ｗ１，Ｗ２を真空吸着により作業テーブル２の前面へ吸引保持する。 That is, the welded portions of the double strip metal thin plates W1 and W2 for which butt welding has been completed are brought into contact with the front surface of the rolling table 54, and the vacuum suction mechanism 4 for cutting and the vacuum suction mechanism 39 for welding are operated to operate the double strip metal thin plates W1. , W2 is sucked and held to the front surface of the work table 2 by vacuum suction.

両帯状金属薄板Ｗ１，Ｗ２が作業テーブル２の前面へ吸引保持されたら、取っ手５９を持って圧延移動台５８を圧延シャフト５７に沿って上下方向へ往復移動させ、圧延移動台５８に回転自在に支持された圧延ローラ６０を両帯状金属薄板Ｗ１，Ｗ２の溶接部上で転動させる。これによって、両帯状金属薄板Ｗ１，Ｗ２の溶接部が圧延加工され、両帯状金属薄板Ｗ１，Ｗ２の厚みや硬さ、組織が均一化される。 When both strip-shaped metal thin plates W1 and W2 are attracted and held to the front surface of the work table 2, the rolling moving table 58 is reciprocated in the vertical direction along the rolling shaft 57 by holding the handle 59, and is rotatably moved to the rolling moving table 58. The supported rolling roller 60 is rolled on the welded portion of both strip-shaped metal thin plates W1 and W2. As a result, the welded portions of the two strip metal thin plates W1 and W2 are rolled, and the thickness, hardness, and structure of the two strip metal thin plates W1 and W2 are made uniform.

このとき、圧延装置８においては、圧延ローラ６０を回転自在に支持するローラ側板６９が加圧手段６１により圧延台５４側へ押圧付勢され、圧延ローラ６０に圧延台５４へ向って加圧力が加えられているため、両帯状金属薄板Ｗ１，Ｗ２の溶接部を確実且つ良好に圧延加工することができる。 At this time, in the rolling apparatus 8, the roller side plate 69 that rotatably supports the rolling roller 60 is pressed and urged toward the rolling table 54 by the pressurizing means 61, and the rolling roller 60 is pressed toward the rolling table 54. Since it is added, the welded portions of both strip-shaped metal thin plates W1 and W2 can be reliably and satisfactorily rolled.

また、圧延装置８においては、圧延シャフト５７が、圧延台５４に対向して平行になる圧延位置と、圧延位置から外れて水平姿勢になる待避位置とに亘って、圧延支持軸５５に回動自在に設けられているため、圧延シャフト５７を待避位置にすると、突合せ溶接された両帯状金属薄板Ｗ１，Ｗ２の溶接部を圧延装置８に容易にセットすることができると共に、帯状金属薄板Ｗ１，Ｗ２の搬送時に圧延装置８が帯状金属薄板Ｗ１，Ｗ２と干渉するのを防止することができる。 Further, in the rolling apparatus 8, the rolling shaft 57 rotates around the rolling support shaft 55 over a rolling position where the rolling shaft 57 is parallel to the rolling table 54 and a retreat position where the rolling shaft 57 deviates from the rolling position and is in a horizontal posture. Since the rolling shaft 57 is freely provided, when the rolling shaft 57 is set to the retracting position, the welded portions of the butt-welded double strip metal thin plates W1 and W2 can be easily set in the rolling apparatus 8 and the strip metal thin plates W1 and W1 can be easily set. It is possible to prevent the rolling apparatus 8 from interfering with the strip-shaped metal thin plates W1 and W2 during the transportation of W2.

このように、上述した縦型突合せ溶接装置は、垂直姿勢の作業テーブル２、垂直姿勢の背面治具ユニット５、上下移動するＴＩＧ溶接用トーチ５２を有する溶接装置７等を備えているため、メッキ設備のように幅方向を垂直にして搬送される帯状金属薄板Ｗ１，Ｗ２であっても、帯状金属薄板Ｗ１，Ｗ２の突合せ溶接を高精度で行うことができる。 As described above, the above-mentioned vertical butt welding apparatus includes a work table 2 in a vertical posture, a back jig unit 5 in a vertical posture, a welding device 7 having a TIG welding torch 52 that moves up and down, and the like. Even in the case of strip-shaped metal thin plates W1 and W2 that are conveyed with the width direction perpendicular to each other as in equipment, butt welding of strip-shaped metal thin plates W1 and W2 can be performed with high accuracy.

また、前記縦型突合せ接合装置は、両帯状金属薄板Ｗ１，Ｗ２の溶接部を垂直姿勢の状態で圧延加工する圧延装置８を備えているため、両帯状金属薄板Ｗ１，Ｗ２の溶接部の厚みや硬度、組織を均一化することができると共に、突合せ溶接した帯状金属薄板Ｗ１，Ｗ２の溶接部を別の場所に設置した圧延装置により圧延加工したりする必要もなく、取扱性や作業性にも優れている。 Further, since the vertical butt joining device includes a rolling apparatus 8 for rolling the welded portions of the double strip metal thin plates W1 and W2 in a vertical posture, the thickness of the welded portions of the double strip metal thin plates W1 and W2 is provided. In addition to being able to make the hardness and structure uniform, there is no need to roll the welded parts of the butt-welded strip-shaped metal thin plates W1 and W2 with a rolling machine installed at another location, resulting in ease of handling and workability. Is also excellent.

図２２〜図２６は圧延装置８の他の例を示し、当該圧延装置８は、図１４〜図２１に示す圧延装置８のシャフト保持機構６２を省略し、当該シャフト保持機構６２に換えてロック機構７７を設けたものである。 22 to 26 show another example of the rolling apparatus 8, and the rolling apparatus 8 omits the shaft holding mechanism 62 of the rolling apparatus 8 shown in FIGS. 14 to 21 and locks in place of the shaft holding mechanism 62. The mechanism 77 is provided.

尚、図２２〜図２６に示す圧延装置８のロック機構７７を除くその他の構成（圧延台５４、圧延支持軸５５、取付エンド部材５６、圧延シャフト５７、圧延移動台５８、圧延ローラ６０及び加圧手段６１等）は、図１４〜図２１に示す圧延装置８のものと同様構造に構成されており、図１４〜図２１に示す圧延装置８と同じ部材・部位には同一の参照番号を付し、その詳細な説明を省略する。 Other configurations (rolling table 54, rolling support shaft 55, mounting end member 56, rolling shaft 57, rolling moving table 58, rolling roller 60, and addition) other than the lock mechanism 77 of the rolling apparatus 8 shown in FIGS. 22 to 26. The compression means 61 and the like) have the same structure as that of the rolling apparatus 8 shown in FIGS. 14 to 21, and the same reference numbers are assigned to the same members and parts as those of the rolling apparatus 8 shown in FIGS. 14 to 21. The detailed description thereof will be omitted.

前記ロック機構７７は、圧延支持軸５５と圧延シャフト５７との間に設けられており、圧延位置（図２２〜図２５に示す位置）から待避位置（図２６に示す位置）に回動した圧延シャフト５７を待避位置にロックし得ると共に、圧延シャフト５７のロック状態を解除し得るものである。 The lock mechanism 77 is provided between the rolling support shaft 55 and the rolling shaft 57, and is rolled from a rolling position (positions shown in FIGS. 22 to 25) to a retreat position (position shown in FIG. 26). The shaft 57 can be locked to the shelter position and the rolled shaft 57 can be released from the locked state.

即ち、ロック機構７７は、図２４〜図２６に示す如く、圧延シャフト５７の一端部（上端部）に形成され、圧延シャフト５７の軸線方向に沿う長穴状の回転用穴７８ａ及び回転用穴７８ａに連通して回転用穴７８ａの内径よりも幅の狭い圧延シャフト５７の軸線方向に沿うスリット状の溝穴７８ｂから成るガイド穴７８と、ガイド穴５７に挿通されて圧延支持軸５５の先端部に螺着され、ガイド穴７８内に位置する水平姿勢の板状軸部７９ａを有するロック用ボルト７９とを備えている。 That is, as shown in FIGS. 24 to 26, the lock mechanism 77 is formed at one end (upper end) of the rolling shaft 57, and has an elongated hole-shaped rotation hole 78a and a rotation hole along the axial direction of the rolling shaft 57. A guide hole 78 composed of slit-shaped groove holes 78b that communicate with 78a and are narrower than the inner diameter of the rotation hole 78a along the axial direction of the rolling shaft 57, and the tip of the rolling support shaft 55 that is inserted through the guide hole 57. It is provided with a locking bolt 79 having a horizontal plate-shaped shaft portion 79a screwed to the portion and located in the guide hole 78.

具体的には、前記ガイド穴７８は、図２４及び図２５に示す如く、回転用穴７８ａが圧延シャフト５７の先端側へ位置するように圧延シャフト５７の上端部に形成されており、圧延シャフト５７のガイド穴７８の前面側周囲には、ロック用ボルト７９の円盤状の頭部７９ｂが摺動自在に嵌合される前面側凹部８０が形成され、また、圧延シャフト５７のガイド穴７８の背面側周囲には、圧延支持軸５５の先端部が摺動自在に嵌合される背面側凹部８１が形成されている。 Specifically, as shown in FIGS. 24 and 25, the guide hole 78 is formed at the upper end of the rolling shaft 57 so that the rotation hole 78a is located toward the tip end side of the rolling shaft 57. A front side recess 80 in which the disk-shaped head 79b of the locking bolt 79 is slidably fitted is formed around the front surface side of the guide hole 78 of the 57, and the guide hole 78 of the rolling shaft 57 is formed. A back surface side recess 81 in which the tip end portion of the rolling support shaft 55 is slidably fitted is formed around the back surface side.

一方、前記ロック用ボルト７９は、図２４及び図２５に示す如く、圧延支持軸５５の先端面に螺着される雄ネジ部７９ｃと、雄ネジ部７９ｃに連設され、圧延シャフト５７に形成したガイド穴７８に挿通される水平姿勢の板状軸部７９ａと、板状軸部７９ａに連設され、圧延シャフト５７の前面側凹部８０に摺動自在に嵌合される円盤状の頭部７９ｂとを備えている。 On the other hand, as shown in FIGS. 24 and 25, the locking bolt 79 is connected to the male screw portion 79c screwed to the tip surface of the rolling support shaft 55 and the male screw portion 79c, and is formed on the rolling shaft 57. A disk-shaped head that is connected to the plate-shaped shaft portion 79a in a horizontal posture and inserted into the guide hole 78 and slidably fitted into the front side recess 80 of the rolling shaft 57. It is equipped with 79b.

また、ロック用ボルト７９の板状軸部７９ａの幅（図２４に示す板状軸部７９ａの左右方向の幅）は、ガイド穴７８の回転用穴７８ａの対向する内周面に当接し、また、板状軸部７９ａの厚み（図２４に示す板状軸部７９ａの上下方向の厚み）は、ガイド穴７８のスリット状の溝穴７８ｂに摺動自在に挿入されるようにそれぞれ設定されている。 Further, the width of the plate-shaped shaft portion 79a of the locking bolt 79 (the width of the plate-shaped shaft portion 79a shown in FIG. 24 in the left-right direction) abuts on the facing inner peripheral surface of the rotation hole 78a of the guide hole 78. Further, the thickness of the plate-shaped shaft portion 79a (thickness of the plate-shaped shaft portion 79a shown in FIG. 24 in the vertical direction) is set so as to be slidably inserted into the slit-shaped groove hole 78b of the guide hole 78. ing.

而して、前記ロック機構７７によれば、圧延シャフト５７が圧延位置のときには、図２４に示す如く、ロック用ボルト７９の水平姿勢の板状軸部７９ａが圧延シャフト５７の回転用穴７８ａ内に位置して回転用穴７８ａの内周面に当接し、圧延シャフト５７の左右方向及び下方向の移動を規制している。 Therefore, according to the locking mechanism 77, when the rolling shaft 57 is in the rolling position, as shown in FIG. 24, the horizontal plate-shaped shaft portion 79a of the locking bolt 79 is inside the rotation hole 78a of the rolling shaft 57. It abuts on the inner peripheral surface of the rotation hole 78a and restricts the movement of the rolling shaft 57 in the left-right direction and the downward direction.

この状態から取付エンド部材５６に支持固定されている圧延シャフト５７の下端部を開放し、図２６（Ａ）に示す如く、圧延シャフト５７を圧延位置から上方へ９０度回動させて水平姿勢にした後、図２６（Ｂ）に示す如く、圧延シャフト５７を左方向へスライドさせると、ロック用ボルト７９の水平姿勢の板状軸部７９ａが圧延シャフト５７のスリット状の溝穴７９ｂに摺動自在に挿入され、圧延シャフト５７の回動が阻止されて圧延シャフト５７が待避位置にロックされた状態で保持されることになる。 From this state, the lower end of the rolling shaft 57 supported and fixed to the mounting end member 56 is opened, and as shown in FIG. 26 (A), the rolling shaft 57 is rotated 90 degrees upward from the rolling position to be in a horizontal posture. Then, as shown in FIG. 26B, when the rolling shaft 57 is slid to the left, the horizontal plate-shaped shaft portion 79a of the locking bolt 79 slides into the slit-shaped groove hole 79b of the rolling shaft 57. It is freely inserted, the rotation of the rolling shaft 57 is blocked, and the rolling shaft 57 is held in a locked state in the retracted position.

また、圧延シャフト５７を図２６（Ｂ）の状態から右方向へスライドさせると、ロック用ボルト７９の板状軸部７９ａがガイド穴７８のスリット状の溝穴７８ｂから抜けて回転用穴７８ａ内に位置し、圧延シャフト５７が回動可能となってロック状態が解除されることになる。 Further, when the rolling shaft 57 is slid to the right from the state shown in FIG. 26B, the plate-shaped shaft portion 79a of the locking bolt 79 comes out of the slit-shaped groove hole 78b of the guide hole 78 and is inside the rotation hole 78a. The rolling shaft 57 becomes rotatable and the locked state is released.

尚、上記の実施形態においては、縦型突合せ溶接装置をメッキラインに設置したが、縦型突合せ溶接装置の設置場所は、メッキラインに限定されるものではなく、帯状金属薄板Ｗ１，Ｗ２をその幅方向を垂直にして搬送するラインであれば、如何なるライン（例えば、プレイライン、焼鈍ライン、造管ライン等）であっても良い。 In the above embodiment, the vertical butt welding apparatus is installed on the plating line, but the installation location of the vertical butt welding apparatus is not limited to the plating line, and the strip-shaped metal thin plates W1 and W2 are used. Any line (for example, a play line, an annealing line, a pipe making line, etc.) may be used as long as the line is conveyed with the width direction vertical.

また、上記の実施形態においては、先行の帯状金属薄板Ｗ１及び後行の帯状金属薄板Ｗ２の両方を切断した後、両方の帯状金属薄板Ｗ１，Ｗ２を背面治具ユニット５にセットするようにしたが、他の実施形態においては、一方の帯状金属薄板Ｗ１，Ｗ２を切断し、背面治具ユニット５にセットした後、他方の帯状金属薄板Ｗ１，Ｗ２を切断し、背面治具ユニット５にセットするようにしても良い。 Further, in the above embodiment, after cutting both the preceding strip-shaped metal thin plate W1 and the trailing strip-shaped metal thin plate W2, both strip-shaped metal thin plates W1 and W2 are set in the back jig unit 5. However, in another embodiment, one strip metal thin plate W1 and W2 are cut and set in the back jig unit 5, then the other strip metal thin plate W1 and W2 are cut and set in the back jig unit 5. You may try to do it.

更に、上記の実施形態においては、背面治具ユニット５にセットされた両帯状金属薄板Ｗ１，Ｗ２の突合せ部を溶接装置７により下方から上方へ向って突合せ溶接するようにしたが、他の実施形態においては、両帯状金属薄板Ｗ１，Ｗ２の突合せ部を溶接装置７により上方から下方へ向って突合せ溶接するようにしても良い。 Further, in the above embodiment, the butt portions of the double strip metal thin plates W1 and W2 set in the back jig unit 5 are butt welded from the lower side to the upper side by the welding device 7, but other embodiments are performed. In the embodiment, the butt portions of the two strip-shaped metal thin plates W1 and W2 may be butt-welded from above to below by the welding device 7.

更に、上記の実施形態においては、圧延装置８を切断装置３の前面（可動側部材２３の前面）に取り付けるようにしたが、他の実施形態においては、圧延装置８を作業テーブル２に設けるようにしても良い。この場合、圧延装置８は、切断装置３による両帯状金属薄板Ｗ１，Ｗ２の切断作業や溶接装置７による両帯状金属薄板Ｗ１，Ｗ２の溶接作業に支障を来たさないように作業テーブル２に設ける。 Further, in the above embodiment, the rolling apparatus 8 is attached to the front surface of the cutting apparatus 3 (the front surface of the movable side member 23), but in other embodiments, the rolling apparatus 8 is provided on the work table 2. You can do it. In this case, the rolling apparatus 8 is placed on the work table 2 so as not to interfere with the cutting work of the double strip metal thin plates W1 and W2 by the cutting device 3 and the welding work of the double strip metal thin plates W1 and W2 by the welding device 7. Provide.

２は作業テーブル、３は切断装置、５は背面治具ユニット、６は左右の前部クランプ、７は溶接装置、８は圧延装置、３６はバックバー、５２はＴＩＧ溶接用トーチ、５４は圧延台、５５は圧延支持軸、５６取付エンド部材、５７は圧延シャフト、５８は圧延移動台、６０は圧延ローラ、６１は加圧手段、６２はシャフト保持機構、７３は保持具、７３ａは保持具の凹部、７４は締め付け具、７７はロック機構、７８はガイド穴、７８ａはガイド穴の回転用穴、７８ｂはガイド穴のスリット状の溝穴、７９はロック用ボルト、７９ａは板状軸部、Ｗ１は先行の帯状金属薄板、Ｗ２は後行の帯状金属薄板。 2 is a work table, 3 is a cutting device, 5 is a back jig unit, 6 is left and right front clamps, 7 is a welding device, 8 is a rolling device, 36 is a back bar, 52 is a TIG welding torch, and 54 is rolling. Table, 55 is a rolling support shaft, 56 mounting end member, 57 is a rolling shaft, 58 is a rolling moving table, 60 is a rolling roller, 61 is a pressurizing means, 62 is a shaft holding mechanism, 73 is a holder, 73a is a holder. 74 is a fastener, 77 is a lock mechanism, 78 is a guide hole, 78a is a hole for rotating a guide hole, 78b is a slit-shaped groove hole of a guide hole, 79 is a lock bolt, and 79a is a plate-shaped shaft. , W1 is a leading strip metal thin plate, and W2 is a trailing strip metal thin plate.

Claims (7)

幅方向を垂直にして搬送される先行の帯状金属薄板（Ｗ１）及び後行の帯状金属薄板（Ｗ２）の背面にそれぞれ面接触状態で当接し得る上下動自在な垂直姿勢の作業テーブル（２）と、作業テーブル（２）に設けられ、先行の帯状金属薄板（Ｗ１）の後端部及び後行の帯状金属薄板（Ｗ２）の先端部をそれぞれ幅方向に沿って切断する切断装置（３）と、作業テーブル（２）に設けられ、幅方向に沿って切断された先行の帯状金属薄板（Ｗ１）の後端部及び後行の帯状金属薄板（Ｗ２）の先端部を背面側から支持すると共に、両帯状金属薄板（Ｗ１），（Ｗ２）の突合せ部の背面に対向するバックバー（３６）を有する背面治具ユニット（５）と、背面治具ユニット（５）の前方位置に上下動自在に設けられ、先行の帯状金属薄板（Ｗ１）の後端と後行の帯状金属薄板（Ｗ２）の先端とを突き合せた状態で両帯状金属薄板（Ｗ１），（Ｗ２）の突合せ部近傍を背面治具ユニット（５）のバックバー（３６）とで前後方向から挟持固定する左右の前部クランプ（６）と、両帯状金属薄板（Ｗ１），（Ｗ２）の突合せ部に沿って上下動し、両帯状金属薄板（Ｗ１），（Ｗ２）の突合せ部を突合せ溶接するＴＩＧ溶接用トーチ（５２）を有する溶接装置（７）と、突合せ溶接した両帯状金属薄板（Ｗ１），（Ｗ２）の溶接部を垂直姿勢の状態で圧延加工して溶接部の厚みや硬度、組織を均一化する圧延装置（８）と、を備え、前記圧延装置（８）は、切断装置（３）の前面に取り付けられ、突合せ溶接した両帯状金属薄板（Ｗ１），（Ｗ２）の溶接部が当接する垂直姿勢の圧延台（５４）と、圧延台（５４）に前方へ突出する状態で設けた水平姿勢の圧延支持軸（５５）と、圧延台（５４）に前方へ突出する状態で設けられ、圧延支持軸（５５）に対向する水平姿勢の取付エンド部材（５６）と、両端部が圧延支持軸（５５）及び取付エンド部材（５６）にそれぞれ支持され、突合せ溶接した両帯状金属薄板（Ｗ１），（Ｗ２）の溶接部に沿う圧延シャフト（５７）と、圧延シャフト（５７）に当該圧延シャフト（５７）の軸線方向へ往復移動自在に支持された圧延移動台（５８）と、圧延移動台（５８）に回転自在に設けられ、圧延台（５４）に当接する両帯状金属薄板（Ｗ１），（Ｗ２）の溶接部上を転動する圧延ローラと（６０）、圧延移動台（５８）に設けられ、圧延ローラ（６０）を圧延台（５４）側へ加圧する加圧手段（６１）と、を備えていることを特徴とする縦型突合せ溶接装置。 A work table in a vertically movable vertical posture (2) that can come into contact with the back surfaces of the preceding strip-shaped metal thin plate (W1) and the trailing strip-shaped metal thin plate (W2) that are transported vertically in the width direction, respectively, in a surface contact state. A cutting device (3) provided on the work table (2) for cutting the rear end portion of the preceding strip-shaped metal thin plate (W1) and the tip portion of the trailing strip-shaped metal thin plate (W2) along the width direction. And, the rear end portion of the preceding strip-shaped metal thin plate (W1) provided on the work table (2) and cut along the width direction and the tip portion of the trailing strip-shaped metal thin plate (W2) are supported from the back side. At the same time, the back jig unit (5) having a back bar (36) facing the back surface of the butted portion of both strip-shaped metal thin plates (W1) and (W2) and the back jig unit (5) move up and down to the front position. It is freely provided, and in a state where the rear end of the preceding strip-shaped metal thin plate (W1) and the tip of the trailing strip-shaped metal thin plate (W2) are butted, the vicinity of the abutting portion of both strip-shaped metal thin plates (W1) and (W2). The left and right front clamps (6), which are sandwiched and fixed by the back bar (36) of the rear jig unit (5) from the front-back direction, and the upper and lower parts along the abutment portions of the two strips of metal thin plates (W1) and (W2). A welding device (7) having a TIG welding torch (52) that moves and butt-wells the butt portions of both strip-shaped metal thin plates (W1) and (W2), and both strip-shaped metal thin plates (W1) and (W2) that are butt-rolled. ) Is rolled in a vertical posture to equalize the thickness, hardness, and structure of the welded portion, and the rolling apparatus (8) is the cutting apparatus (3). A rolling table (54) in a vertical position in which the welded portions of both strip-shaped metal thin plates (W1) and (W2) mounted on the front surface and butt-welded are in contact with each other, and a horizontal rolling table (54) provided so as to project forward. The rolling support shaft (55) in the posture and the mounting end member (56) in the horizontal posture, which is provided on the rolling table (54) so as to project forward and faces the rolling support shaft (55), and both ends are rolling support. The rolling shaft (57) along the welded portion of both strip-shaped metal thin plates (W1) and (W2) supported by the shaft (55) and the mounting end member (56) and butt-welded, and the rolling shaft (57). A rolling moving table (58) supported so as to be reciprocally movable in the axial direction of the shaft (57), and a double-band metal thin plate (W1) rotatably provided on the rolling moving table (58) and in contact with the rolling table (54). ), (W2) rolling roller rolling on the welded portion and (60), a pressurizing hand provided on the rolling moving table (58) to pressurize the rolling roller (60) toward the rolling table (54). A vertical butt welding apparatus including a step (61) . 前記切断装置は（３）、作業テーブル（２）に埋設された状態となる待機位置と、作業テーブル（２）の前面から前方へ突出して先行の帯状金属薄板（Ｗ１）の後端部及び後行の帯状金属薄板（Ｗ２）の先端部をそれぞれ幅方向に沿って切断する切断作業位置とに亘って、作業テーブル（２）に前後方向へ移動可能に設けられ、また、前記圧延装置（８）は、切断装置（３）の前面に取り付けられていることを特徴する請求項１に記載の縦型突合せ溶接装置。 The cutting device (3) has a standby position embedded in the work table (2), and a rear end portion and a rear portion of the preceding strip-shaped metal thin plate (W1) protruding forward from the front surface of the work table (2). The tip of the strip-shaped metal sheet (W2) of the row is provided on the work table (2) so as to be movable in the front-rear direction over the cutting work position for cutting each along the width direction, and the rolling apparatus (8). ) Is the vertical butt welding apparatus according to claim 1, wherein the vertical butt welding apparatus is attached to the front surface of the cutting apparatus (3). 前記圧延シャフト（５７）は、圧延シャフト（５７）の一端部が圧延支持軸（５５）に上下方向へ回動自在に支持されていると共に、圧延シャフト（５７）の他端部が取付エンド部材（５６）に着脱自在に取り付けられており、圧延台（５４）に対向して平行になる圧延位置と、圧延位置から外れて水平姿勢になる待避位置とを採り得るようになっていることを特徴とする請求項１に記載の縦型突合せ溶接装置。 In the rolling shaft (57), one end of the rolling shaft (57) is rotatably supported by the rolling support shaft (55) in the vertical direction, and the other end of the rolling shaft (57) is a mounting end member. It is detachably attached to (56), and it is possible to take a rolling position that is parallel to the rolling table (54) and a retreat position that deviates from the rolling position and becomes a horizontal posture. The vertical butt-rolling apparatus according to claim 1, which is characterized . 前記圧延台（５４）に、圧延位置から待避位置に回動した圧延シャフト（５７）を待避位置に保持するシャフト保持機構（６２）を設けたことを特徴とする請求項３に記載の縦型突合せ溶接装置。 The vertical type according to claim 3 , wherein the rolling table (54) is provided with a shaft holding mechanism (62) for holding the rolling shaft (57) rotated from the rolling position to the shunting position in the shunting position. Butt welding equipment. 前記シャフト保持機構（６２）は、圧延台（５４）に設けられ、圧延シャフト（５７）
の一部分が抜き差し自在に挿入される凹部（７３ａ）を形成した保持具（７３）と、保持具（７３）に設けられ、保持具（７３）の凹部（７３ａ）に挿入された圧延シャフト（５７）を凹部（７３ａ）から抜け止めする締め付け具（７４）とを備えていることを特徴とする請求項４に記載の縦型突合せ溶接装置。 The shaft holding mechanism (62) is provided on the rolling table (54), and the rolling shaft (57)
A holder (73) having a recess (73a) into which a part of the holder (73a) can be freely inserted and removed, and a rolling shaft (57) provided in the holder (73) and inserted into the recess (73a) of the holder (73). The vertical butt welding apparatus according to claim 4 , further comprising a fastener (74) for preventing the recess (73a) from coming off . 前記圧延支持軸（５５）と圧延シャフト（５７）との間に、圧延位置から待避位置に回動した圧延シャフト（５７）を待避位置にロックし得ると共に、圧延シャフト（５７）のロック状態を解除し得るロック機構（７７）を設けたことを特徴とする請求項３に記載の縦型突合せ溶接装置。 Between the rolling support shaft (55) and the rolling shaft (57), the rolling shaft (57) rotated from the rolling position to the retracting position can be locked to the retracting position, and the locked state of the rolling shaft (57) can be locked. The vertical butt welding apparatus according to claim 3 , further comprising a lock mechanism (77) that can be released . 前記ロック機構（７７）は、圧延シャフト（５７）の一端部に形成した回転用穴（７８ａ）及び回転用穴（７８ａ）に連通して回転用穴（７８ａ）の内径よりも幅が狭い圧延シャフト（５７）の軸線方向に沿うスリット状の溝穴（７８ｂ）から成るガイド穴（７８）と、ガイド穴（７８）に挿通されて圧延支持軸（５５）の先端部に螺着され、ガイド穴（７８）内に位置する水平姿勢の板状軸部（７９ａ）を有するロック用ボルト（７９）とを備えており、前記ロック用ボルト（７９）の板状軸部（７９ａ）の幅は、ガイド穴（７８）の回転用穴（７８ａ）の内周面に当接し、また、板状軸部（７９ａ）の厚みは、ガイド穴（７８ａ）のスリット状の溝穴（７８ｂ）に摺動自在に挿入されるようにそれぞれ設定されていることを特徴とする請求項６に記載の縦型突合せ溶接装置。 The locking mechanism (77) communicates with the rotation hole (78a) and the rotation hole (78a) formed at one end of the rolling shaft (57) and is narrower than the inner diameter of the rotation hole (78a). A guide hole (78) composed of a slit-shaped groove hole (78b) along the axial direction of the shaft (57) and a guide hole (78) inserted into the guide hole (78) and screwed to the tip of the rolling support shaft (55) to guide the guide. It is provided with a locking bolt (79) having a plate-shaped shaft portion (79a) in a horizontal posture located in the hole (78), and the width of the plate-shaped shaft portion (79a) of the locking bolt (79) is , The guide hole (78) abuts on the inner peripheral surface of the rotation hole (78a), and the thickness of the plate-shaped shaft portion (79a) slides into the slit-shaped groove hole (78b) of the guide hole (78a). The vertical butt welding apparatus according to claim 6 , wherein each is set so as to be movably inserted .
JP2018198065A 2018-10-22 2018-10-22 Vertical butt welding equipment Active JP6804064B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2018198065A JP6804064B2 (en) 2018-10-22 2018-10-22 Vertical butt welding equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2018198065A JP6804064B2 (en) 2018-10-22 2018-10-22 Vertical butt welding equipment

Publications (2)

Publication Number Publication Date
JP2020066006A JP2020066006A (en) 2020-04-30
JP6804064B2 true JP6804064B2 (en) 2020-12-23

Family

ID=70389162

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2018198065A Active JP6804064B2 (en) 2018-10-22 2018-10-22 Vertical butt welding equipment

Country Status (1)

Country Link
JP (1) JP6804064B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116100236B (en) * 2023-04-11 2023-06-16 深圳市振勤电子科技有限公司 Hardware welding device
CN117464294B (en) * 2023-12-26 2024-03-08 山西八建集团有限公司 Be used for heavy steel construction welded auxiliary positioning device

Also Published As

Publication number Publication date
JP2020066006A (en) 2020-04-30

Similar Documents

Publication Publication Date Title
JP5043625B2 (en) Pipe welding method
JP5346899B2 (en) Horizontal automatic welding equipment
JP6804064B2 (en) Vertical butt welding equipment
JP5106811B2 (en) Butt work butt joining device
US6460440B1 (en) Cutting apparatus
KR102228693B1 (en) Steel plate material supply for laser cutting
JP2009279604A (en) Butt welding equipment for belt-like workpiece
JP4537902B2 (en) Horizontal automatic welding equipment
JP2001047281A (en) Device for butting and joining belt-like metal sheet
JP4615261B2 (en) Butt joining device for strip metal sheet
JP2016221559A (en) Butt joint device for strip metal sheet
JP3974464B2 (en) Butt metal plate butt joining device
JP2006051531A (en) Horizontal-type automatic welding equipment
JP4861959B2 (en) Cutting device used for butt joining device of strip-shaped workpiece
JP3126789B2 (en) Laser welding equipment
JP2015030014A (en) Laser beam welder
JP3797932B2 (en) Automatic welding equipment for sheet metal
JP6664711B2 (en) Vertical butt welding equipment
JPH11347792A (en) Device and method for butt welding of beltlike metallic sheet
JP2010201488A (en) Butt joining apparatus for beltlike metal sheet
JP6441976B2 (en) Corner automatic welding equipment
JP2002336964A (en) Butt joint equipment of strip-like metal sheet
JP7154052B2 (en) Processing method by laser processing machine and multi-tasking machine
KR100770324B1 (en) Apparatus for changing and fixing the welding wheels of strip seam welding machine
JP2001191191A (en) Working head for laser beam welding robot

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20200514

A871 Explanation of circumstances concerning accelerated examination

Free format text: JAPANESE INTERMEDIATE CODE: A871

Effective date: 20200514

A975 Report on accelerated examination

Free format text: JAPANESE INTERMEDIATE CODE: A971005

Effective date: 20200709

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20200722

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20200908

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20201124

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20201124

R150 Certificate of patent or registration of utility model

Ref document number: 6804064

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250