JPH02235580A - Metallic coil inside diameter welding equipment - Google Patents
Metallic coil inside diameter welding equipmentInfo
- Publication number
- JPH02235580A JPH02235580A JP1057616A JP5761689A JPH02235580A JP H02235580 A JPH02235580 A JP H02235580A JP 1057616 A JP1057616 A JP 1057616A JP 5761689 A JP5761689 A JP 5761689A JP H02235580 A JPH02235580 A JP H02235580A
- Authority
- JP
- Japan
- Prior art keywords
- welding
- coil
- inside diameter
- unit
- horizontal arm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000003466 welding Methods 0.000 title claims abstract description 91
- 238000003825 pressing Methods 0.000 claims abstract description 19
- 238000004804 winding Methods 0.000 claims abstract description 19
- 230000002093 peripheral effect Effects 0.000 claims abstract description 13
- 238000001514 detection method Methods 0.000 claims abstract description 10
- 239000002184 metal Substances 0.000 claims description 41
- 229910052751 metal Inorganic materials 0.000 claims description 41
- 230000005611 electricity Effects 0.000 abstract description 3
- 230000001629 suppression Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 20
- 230000007246 mechanism Effects 0.000 description 11
- 239000000463 material Substances 0.000 description 6
- 238000000137 annealing Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007665 sagging Methods 0.000 description 2
- 235000001018 Hibiscus sabdariffa Nutrition 0.000 description 1
- 240000004153 Hibiscus sabdariffa Species 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
Landscapes
- Resistance Welding (AREA)
- Winding, Rewinding, Material Storage Devices (AREA)
Abstract
Description
【発明の詳細な説明】
（イ）産東上の利用分野
本発明は、金属コイルの内径巻端をコイル内周面に仮付
け溶接を行う金属コイル内径溶接装置に関するものであ
る．
（口）従来技術
金属コイルを水平に寝かせて、運撤するさいに、コイル
内周近傍に端面くずれが生じたり、コイルの焼鈍処理時
にコイル内周ゆるみを生じる．このような現象を防止す
るなめに、コイル内径端をコイル内周に仮付け溶接する
方法が従来からとられてきた．
従来、金属コイルの仮付け溶接法として下記の３つのも
のがある．
■ ハンドによるスポットアーク溶接法この方法は、通
常仮置されたコイル内周近傍の端面凹凸をハンマにて修
正し、コイル内周の板タレを治具（通称、拡径棒という
．）により修正後、コイル内周近傍のコイル端而をハン
ドによりアーク溶接を行い仮付けする．
しかし、この方法には、次の問題点がある．１６専従要
員が必要であること．
１１，コイル・コンベア近傍での作業となり危険である
こと．
１１１．溶接信顆性が低いこと（板厚、材質によっては
端面凹凸修正が不完全となるとともに、ラフな溶接のた
めに溶接割れが発生する場合もある）．
ｖｉ，溶接後のスラブ除去が必要であること．対応策と
して従来より種々の提案がなされてきた．その１つに、
このスポットアーク溶接法を改善するために上記■に代
えて下記の２つの方法が提案された．
■ コイル巻取リール位置における金属コイル最内径部
の自動スポット溶接法．
この方法は、例えば特開昭４！）− １３５８５３ 号
公報、特開昭５４− １５９３５０号公報等に提案され
ている．この方法は、巻取リール周辺に溶接装置を配置
し、金属ストリップの巻始め（少なくとも１巻程度）に
数点スポット溶接を施し、仮付けされたコイル内径を形
成させる．
しかし、この方法番こは次の問題点がある．．ｉｇ接作
業時巻取装置停機が前提となること．このために、既存
ラインの処理能率の低下をきなし、ラインによってはラ
イン前後設備の改造が必要となる（例えば、酸洗ライン
では、人出側ルーパ設備の延長等）．
Ｉｔ ．適用対象が限定されること．このために、旋回
式巻取リール交換方式（通称力ローゼル方式）には設備
配置上適用困難となり、また、■ラインに複数の固定巻
取リールがある場合、１リール１設備が必要であり、設
備台数が増加する。DETAILED DESCRIPTION OF THE INVENTION (a) Field of Application The present invention relates to a metal coil inner diameter welding device for tack welding the inner diameter winding end of a metal coil to the inner peripheral surface of the coil. (Explanation) Conventional technology When a metal coil is laid down horizontally and transported or removed, the end face may become distorted near the inner periphery of the coil, and the inner periphery of the coil may become loose during annealing. In order to prevent this phenomenon, a method has traditionally been used in which the inner diameter end of the coil is tack welded to the inner circumference of the coil. Conventionally, there are three methods for tack welding metal coils: ■ Spot arc welding method by hand In this method, the unevenness of the end face near the inner circumference of the temporarily placed coil is corrected using a hammer, and the sagging of the plate on the inner circumference of the coil is corrected using a jig (commonly known as a diameter expansion rod). After that, the end of the coil near the inner circumference of the coil is arc welded by hand to temporarily attach it. However, this method has the following problems. 16 dedicated employees are required. 11. It is dangerous to work near the coil conveyor. 111. Poor weld susceptibility (depending on plate thickness and material, edge surface unevenness correction may be incomplete, and weld cracking may occur due to rough welding). vi, it is necessary to remove the slab after welding. Various proposals have been made as countermeasures. One of them is
In order to improve this spot arc welding method, the following two methods have been proposed in place of the above method. ■ Automatic spot welding method for the innermost diameter part of the metal coil at the coil take-up reel position. This method can be used, for example, in Japanese Patent Application Publication No. 4! )-135853, Japanese Unexamined Patent Publication No. 159350/1983, etc. In this method, a welding device is placed around the take-up reel, and spot welding is performed at several points at the beginning of the winding of the metal strip (at least one winding) to form the inner diameter of the tacked coil. However, this method has the following problems. ．． It is a prerequisite that the take-up device is stopped during ignition work. For this reason, the processing efficiency of existing lines will decrease, and depending on the line, it will be necessary to modify the equipment before and after the line (for example, in a pickling line, the looper equipment on the output side may need to be extended). It. The scope of application is limited. For this reason, it is difficult to apply the rotating take-up reel exchange method (commonly known as the force Roselle method) due to the equipment layout. Also, if there are multiple fixed take-up reels on the line, one piece of equipment is required for each reel. The number of equipment increases.
ｉｉｉ ．コイル内周近傍端面凹凸を修正できないこと
．このために、仮付け信頼性が低い．巻付け開始時の板
先端は無張力で、リールに供給されるので、板の蛇行制
御は困難であり、コイル状巻取時コイル内径近傍のみ端
面凹凸が発生する場合がある．また、焼鈍処理時（連続
焼鈍を除く》は、コイルを…［して積み重ねるが、その
さい、端面凸部にコイル荷重がかかり仮付け部に集中す
る．その結果、板厚、材質によっては仮付け外れが頻繁
に発生する．
■ 金属製リボンによる自動スポット溶接法．この方法
は特開昭６２−１５８５７６号公報に提案されている．
この方法は巻き取られたコイルの端面形状、内径ゆるみ
修正の後、コイル内周側板先端部に金属製リボンを当て
自動的にスポット溶接をする装置をコイル両端面に配置
している．しかし、この方法には、次の問題点がある．
ｉ．適用対象材料が限定されること．仮付け強度は薄い
金属製リボンにより制限されるので、高降伏点材または
板厚の厚いコイルでは接合強度不足となる．また、実施
例では電極チップの昇降は片押え式流体ジリンダを径方
向に配置しており、小型化および高押圧力発揮はｍ梢的
に困難となり、高降伏点材または板厚の厚いコイルおよ
び板厚が薄いために内周の板タレ大のジイルへは適用が
極めて困難である．したがって、内周の板タレの少ない
板厚の薄いコイルだけが対象となる．
ｔ．複雑な機構により設備コストが大となること．１台
の溶接装置にコイル端面形状および内径ゆるみ修正機構
、溶接機構、押圧機棺ならびに金属製リボン脱着ａｍを
配置するのでその機構は極めて複雑となり、コイル内筒
内に進入出可能に小型化することは困難である．実用１
ヒするためには、コイル両端面側に各々装置を配備させ
なければならない．修正機楕によるスラスト力および押
圧機構による偏荷重に耐えるために装置主軸受は頑強に
作られなければならない．すなわち、複雑な機構、リボ
ンを吸着、リボン供給装置を要し、頑強な主軸受および
構造となり、装置台数は最低２台必要となり、結果的に
は全体の装置コストは多大となる．《ハ》発明が解決し
ようとする課題
本発明が解決しようとする課題は、比較的簡単な構造の
装置で金属コイルの内径端を迅速かつ信頼性高く自動溶
接することにある．
（二）課題を解決するための手段
本発明の金属コイル内径溶接装置は、金属コイルの内径
巻端をコイル内周面に仮付け溶接を行う装置において、
金属コイルの軸心にそって前進後退をする直立スタンド
と、該直立スタンドに昇降自在にかつ金属コイル軸心と
平行な軸のまわりに回転自在に取り付けられた水平アー
ムと、該水平アームの自由端に取り付けられた仮付け溶
接ヘッドと、前記直立スタンド、水平アームおよび仮付
け溶接ヘッドを駆動制御する機器とからなり、前記仮付
け溶接ヘッドが金属コイル内径巻端を検出する検出ユニ
ットと、該巻端をコイル内周面に仮付け溶接する溶接ユ
ニットと、該溶接ユニットをコイル内周面に弾性変位自
在に押し付ける押圧ユニットとを有していることからな
る手段によって、上記課題を解決している．
前記溶接ユニットが前記金属コイル内径巻端をコイル内
周面にスボント溶接することが好ましい．
（ホ）ｆ￥− 用
本発明の装置は、コイル状に巻き取られた金属コイルの
内周を仮固定するために、仮付け溶接を行う溶接装置で
あり、内径端の垂れの大きな極薄肉コイル以外のコイル
を対象としている．まず、金属コイル端面形状の修正を
別に設けた装！によって行う．次いで、直立スタンドを
コイル端面に向かって前進させる．平行して水平アーム
の上下位置を調節した後、ヘッドを再び前進させて、コ
イル内径に挿入する．
水平アームを回転させ、ヘッドに設けてある検出ユニッ
トによってコイル内径端を検出し、押圧ユニットがコイ
ル内径端をコイル内周に押し付け、仮付け溶接ユニット
によって内径端を内周にスポット溶接する．
（へ）実施例
図面を参照して、本発明の金属コイル内径溶接装置の実
施例について説明する．
第１図に示すように、本発明の金属コイル内径溶接装置
は、金属コイル１の内径巻端１１をコイル内周面１２に
仮付け溶接を行う装置において、金属コイル１の軸心１
３にそって前進後退をする直立スタンド２と、直立スタ
ンド２に昇降自在にかつ金属コイル軸心１３と平行な軸
のまわりに回転自在に取り付けられた水平アーム３と、
水平アーム３の自由端に収り付けられた仮付け溶接ヘッ
ド４と、直立スタンド２、水平アーム３および仮付け溶
接ヘッド４を駆動制御する機器５とがらなっている．
仮付け溶接ヘッド４は、第２図および第３図に示すよう
に、金属コイル端接触ユニット４１と、金属コイル内径
巻端１１を検出する検出ユニッ１・４２と、巻端１１を
コイル内周面１２に仮付，け溶接する溶接ユニット４３
と、溶接ユニット４３をコイル内周面１２に弾性変位自
在に押し付ける押圧ユニット４４とからできている．
駆動制御機器５は、制御器５１、走行用モータ５２、昇
降用モータ５３、旋回用モータ５４、走行用ボール軸５
５、昇降用ボール軸５６、旋回用歯車列５７とからでき
ている．
水平アーム３の基端側には、溶接電源４３１が取り付け
られる．溶接電源４３１は、仮付け溶接ヘッド４とのバ
ランスを取るように水平アーム３に取り付けられる．
第１図に示すように、仮付け溶接ヘッド４は水平アーム
３の先端に取り付けられており、水平アーム３は、歯車
列５７をかいして旋回用モータ５４によって旋回できる
．主軸受３１は昇降用モタ５３によって昇降用ボール軸
５６をがいして、ガイド５６にそって上下方向に昇降で
きる．直立スタンド２は走行用モータ５２によって走行
用ボール軸５５をかいし゜て、ガイド２１にそって前後
方向に前後進できる．溶接電源４３１は水平アーム３の
後端部に取り付けられており、水平アーム３と共に旋回
する．
エア、電気および冷却水は水平アーム３の後部より供給
され、水平アーム３を通り、アーム先端部に送られてい
る．溶剤条件および各機器５２、５３、５４、４３１は
、専用コンピュータを備えた制御器５１により制御され
る．
第２図および第３図に仮付溶接ヘッド４の詳細を示す．
仮付け溶接ヘッド４を金属コイル１の内径内に挿入する
際の衝突防止機構として接触ユニット４１が設けられて
いる．このユニット４１の接触板４１１、センサ４１２
、バネ（図示せず）が数セット配置されている．コイル
内周側の内径端１１の位置検出機構として検出ユニット
４２が設けられている．このユニット４２の拡縮用シリ
ンダ４２１、倣いローラ４２２、センサ４２３が配置さ
れている．
仮付け溶接機楕としての溶接ユニット４３は内径端１１
をまたぎコイル内周１２に接触する１対の溶接チップ４
３４がホルダ４３２に配置されており、溶接チソプ４３
４またはアーム３内を導びかれた銅板４３３がそれぞれ
接続されている．溶接チップ４３４の押圧機構としての
押圧ユニット４４は押圧力を発生させる空気バネ４４１
、反溶接チップ側にあり押圧力を支持するサポート４４
２、縮径力発生ｍ楕および縮径時のヘッド４の心出し機
構としてのシリンダ４４３とストツパ４４４が配置され
ている．
次に、本発明の金属コイル内径溶接装置の動作について
説明する．コイル状に巻き取られた金属コイル１は、コ
イル転倒防止に十分配慮された１対の簡易プレス（図示
せず｝により、内径近傍端面凹凸を修正される．
次に、コイル１が所定の位置に送り込まれると、簡易プ
レスからのコイルの幅、位置情報と上位コンピュータ《
図示せず）からの情報により、溶接装置のＭ御器ラ１は
演算を行い、各機器の位置決め情報、溶接条件（電流、
時間、パターン、押圧力）を指示する．
まず、制御器５１からの指示により、水平アーム３は、
昇降用モータ５３によって、ボール軸５６をかいして、
ガイド５６１にそって、コイル内径心高さに位置決めさ
れる．平行して仮付け溶接ヘッド４がコイル１の内径内
の所定の位置まで走行用モータ５２によってボール軸５
５をかいしてガイド２１にそって前進させて停止する．
第５図に示すように、シリンダ４２１によってローラ４
２２をコイル１の内周面１２に押し付けると同時にセン
サ４２３を近接させた後、水平ア−ム３を旋回用モータ
５４によって歯車列５７をかいして、コイル１の板巻き
方向に合わせて旋回させ、内径端１１の位置を検出する
．次いで、センサ４２３、ローラ４２２を退避させ、溶
接チップ４３１を内径端１１をまたぐ位置に水平アーム
３を旋回させる（第４図）．ジリンダ４４３が開放され
、制御器５１により選択され・た圧力の空気が空気バネ
４４１に流入され、溶接チップ４３１およびサポート４
４゜２はコイル内周面１２を最適押付力で、コイル１の
心位置と水平アーム３位置がズレていた場合でも、主軸
受３１に影響を及ぼすことなく押し付ける．空気バネ４
４１を採用することで、低圧力源で、高押付け力が得ら
れ、また装置もコンパクトに仕上げることができる．
次いで、銅板４３３を通して制御器５１により選択され
た溶接条件の電気が溶接チップ４３４に通電され、内径
端１１の仮付け溶接が行われる．溶接チップ４３４は、
板厚が変化した場合でも、ビン４３３により追従し、無
理なくコイル内周面に押し付けられるようになっている
．
仮付け溶接が完了した後に、空気バネ４４１は開放され
、ジリンダ４４３は縮小する．シリンダ４４３に連結さ
れた軸受４４５はガイド４４６にそって移動し、ストッ
パ４４４にそれぞれ当たり停止する。これによりヘッド
４は心出しされる。iii. It is not possible to correct the unevenness of the end face near the inner circumference of the coil. For this reason, the reliability of tacking is low. Since the tip of the plate is supplied to the reel without tension at the start of winding, it is difficult to control the meandering of the plate, and when winding into a coil, unevenness may occur on the end surface only near the inner diameter of the coil. In addition, during annealing treatment (excluding continuous annealing), coils are piled up, but at that time, the coil load is applied to the convex part of the end face and concentrated on the temporary attachment part.As a result, depending on the plate thickness and material, the temporary Attachment and detachment frequently occur. ■ Automatic spot welding method using a metal ribbon. This method is proposed in Japanese Patent Application Laid-open No. 158576/1983.
In this method, after correcting the end face shape and inner diameter of the wound coil, a metal ribbon is applied to the tip of the inner side plate of the coil, and devices are placed on both end faces of the coil to automatically perform spot welding. However, this method has the following problems.
i. Applicable materials are limited. Temporary bonding strength is limited by the thin metal ribbon, so high yield point materials or thick coils will result in insufficient bonding strength. In addition, in the example, a one-sided fluid cylinder is arranged in the radial direction to raise and lower the electrode tip, making it difficult to downsize and exert a high pressing force. Due to the thinness of the plate, it is extremely difficult to apply it to a jill with large sag on the inner periphery. Therefore, only thin coils with little plate sagging on the inner circumference are targeted. t. Equipment costs are high due to complex mechanisms. Since the coil end face shape and inner diameter loosening correcting mechanism, welding mechanism, press machine coffin, and metal ribbon attachment/detachment am are arranged in one welding device, the mechanism becomes extremely complex, but it has to be miniaturized so that it can enter and exit the coil inner cylinder. That is difficult. Practical 1
In order to do this, devices must be installed on both end faces of the coil. The main bearing of the device must be made robust to withstand the thrust force caused by the correction machine ellipse and the uneven load caused by the pressing mechanism. That is, it requires a complicated mechanism, a ribbon suction device, a ribbon feeding device, a strong main bearing and structure, and a minimum of two devices, resulting in a large overall device cost. <<C>> Problems to be solved by the invention The problem to be solved by the present invention is to automatically weld the inner diameter end of a metal coil quickly and reliably using a device with a relatively simple structure. (2) Means for Solving the Problems The metal coil inner diameter welding apparatus of the present invention is an apparatus for tack welding the inner diameter winding end of a metal coil to the inner circumferential surface of the coil.
An upright stand that moves forward and backward along the axis of a metal coil, a horizontal arm that is attached to the upright stand so that it can be raised and lowered freely, and that can rotate around an axis that is parallel to the axis of the metal coil, and a horizontal arm that moves freely around an axis parallel to the axis of the metal coil. A detection unit comprising a tack welding head attached to the end, a device for driving and controlling the upright stand, the horizontal arm and the tack welding head, and a detection unit for the tack welding head to detect the inner diameter winding end of the metal coil; The above problem is solved by a means comprising a welding unit that temporarily welds the winding end to the inner circumferential surface of the coil, and a pressing unit that presses the welding unit against the inner circumferential surface of the coil so as to be elastically displaceable. There is. It is preferable that the welding unit spont welds the inner diameter winding end of the metal coil to the inner peripheral surface of the coil. (e) f￥- The device of the present invention is a welding device that performs tack welding to temporarily fix the inner circumference of a metal coil wound into a coil shape, and is used to weld an extremely thin wall with a large sag at the inner diameter end. This applies to coils other than coils. First of all, the metal coil end face shape has been modified separately! This is done by Next, move the upright stand forward toward the end of the coil. After adjusting the vertical position of the horizontal arm in parallel, move the head forward again and insert it into the inner diameter of the coil. The horizontal arm is rotated, the inner diameter end of the coil is detected by the detection unit installed in the head, the pressing unit presses the inner diameter end of the coil against the inner circumference of the coil, and the inner diameter end is spot-welded to the inner circumference by the tack welding unit. (F) Embodiment An embodiment of the metal coil inner diameter welding device of the present invention will be described with reference to the drawings. As shown in FIG. 1, the metal coil inner diameter welding device of the present invention is a device for tack welding the inner diameter winding end 11 of the metal coil 1 to the coil inner peripheral surface 12.
an upright stand 2 that moves forward and backward along 3; a horizontal arm 3 attached to the upright stand 2 so as to be able to rise and fall freely and to be rotatable around an axis parallel to the metal coil axis 13;
A tack welding head 4 housed in the free end of the horizontal arm 3 is connected to a device 5 for driving and controlling the upright stand 2, the horizontal arm 3, and the tack welding head 4. As shown in FIGS. 2 and 3, the tack welding head 4 includes a metal coil end contact unit 41, detection units 1 and 42 that detect the inner diameter winding end 11 of the metal coil, and a metal coil end contact unit 41 that detects the inner diameter winding end 11 of the metal coil. Welding unit 43 for tack welding and welding to surface 12
and a pressing unit 44 that presses the welding unit 43 against the inner circumferential surface 12 of the coil so as to be elastically displaceable. The drive control device 5 includes a controller 51, a traveling motor 52, a lifting motor 53, a turning motor 54, and a traveling ball shaft 5.
5. It consists of a ball shaft 56 for lifting and lowering, and a gear train 57 for turning. A welding power source 431 is attached to the base end side of the horizontal arm 3. The welding power source 431 is attached to the horizontal arm 3 so as to balance it with the tack welding head 4. As shown in FIG. 1, the tack welding head 4 is attached to the tip of the horizontal arm 3, and the horizontal arm 3 can be rotated by a rotation motor 54 through a gear train 57. The main bearing 31 can be raised and lowered in the vertical direction along the guide 56 by scraping the lifting ball shaft 56 by the lifting motor 53. The upright stand 2 can be moved forward and backward along the guide 21 by a traveling motor 52 and a traveling ball shaft 55. The welding power source 431 is attached to the rear end of the horizontal arm 3 and rotates together with the horizontal arm 3. Air, electricity, and cooling water are supplied from the rear of the horizontal arm 3, pass through the horizontal arm 3, and are sent to the tip of the arm. The solvent conditions and each device 52, 53, 54, 431 are controlled by a controller 51 equipped with a dedicated computer. Figures 2 and 3 show details of the tack welding head 4.
A contact unit 41 is provided as a collision prevention mechanism when inserting the tack welding head 4 into the inner diameter of the metal coil 1. Contact plate 411 and sensor 412 of this unit 41
, several sets of springs (not shown) are arranged. A detection unit 42 is provided as a position detection mechanism for the inner diameter end 11 on the inner circumferential side of the coil. An expansion/contraction cylinder 421, a copying roller 422, and a sensor 423 of this unit 42 are arranged. The welding unit 43 as a tack welding machine ellipse has the inner diameter end 11
A pair of welding tips 4 that straddle the coil and contact the inner circumference 12 of the coil.
34 is arranged in the holder 432, and the welding chisop 43
4 or a copper plate 433 guided inside the arm 3 are connected to each other. The pressing unit 44 as a pressing mechanism for the welding tip 434 includes an air spring 441 that generates pressing force.
, a support 44 located on the side opposite to the welding tip and supporting the pressing force.
2. A cylinder 443 and a stopper 444 are arranged as a mechanism for generating diameter reduction force and for centering the head 4 during diameter reduction. Next, the operation of the metal coil inner diameter welding device of the present invention will be explained. The metal coil 1 wound into a coil shape is corrected for unevenness on the end surface near the inner diameter using a pair of simple presses (not shown) that are designed to prevent the coil from falling over.Next, the coil 1 is placed in a predetermined position. When the coil is fed into the machine, the width and position information of the coil from the simple press and the host computer
M controller 1 of the welding device performs calculations based on information from the
time, pattern, pressing force). First, according to instructions from the controller 51, the horizontal arm 3
By using the lifting motor 53 and moving the ball shaft 56,
It is positioned along the guide 561 at the height of the inner diameter of the coil. In parallel, the tack welding head 4 is moved to a predetermined position within the inner diameter of the coil 1 by means of a traveling motor 52.
5 to advance along the guide 21 and stop.
As shown in FIG. 5, the roller 4 is
22 is pressed against the inner peripheral surface 12 of the coil 1 and at the same time the sensor 423 is brought close to it, the horizontal arm 3 is rotated by the rotation motor 54 through the gear train 57 in accordance with the plate winding direction of the coil 1. to detect the position of the inner diameter end 11. Next, the sensor 423 and roller 422 are retracted, and the horizontal arm 3 is turned to a position where the welding tip 431 straddles the inner diameter end 11 (FIG. 4). The cylinder 443 is opened, and air at a pressure selected by the controller 51 flows into the air spring 441, causing the welding tip 431 and the support 4 to flow into the air spring 441.
4°2 allows the inner peripheral surface 12 of the coil to be pressed with the optimum pressing force without affecting the main bearing 31 even if the center position of the coil 1 and the position of the horizontal arm 3 are misaligned. air spring 4
By adopting 41, high pressing force can be obtained with a low pressure source, and the device can also be made compact. Next, electricity under the welding conditions selected by the controller 51 is applied to the welding tip 434 through the copper plate 433, and tack welding of the inner diameter end 11 is performed. The welding tip 434 is
Even if the plate thickness changes, the pin 433 follows the change and allows it to be pressed against the inner circumferential surface of the coil without any force. After the tack welding is completed, the air spring 441 is released and the jirinda 443 is contracted. The bearings 445 connected to the cylinder 443 move along the guide 446 and stop by hitting the stoppers 444, respectively. The head 4 is thereby centered.
内径端位置検出動作を除く仮付け動作を走行用モータ５
２によって仮付け溶接ヘッド４をコイル内径端幅方向に
移動させることにより必要な位置に必要な数だけ仮付け
をする．
（ト）効 果
本発明の装置によれば、下記の効果が得られる．
■ 適用ラインの能率維持が可能になる。The traveling motor 5 performs the temporary attachment operation except for the inner diameter end position detection operation.
2, the tack welding head 4 is moved in the width direction of the inner diameter end of the coil to perform tack welding in the required position and number of times. (g) Effects According to the apparatus of the present invention, the following effects can be obtained. ■ It becomes possible to maintain the efficiency of the application line.
■ 広範な板厚、材質に適用可能である．特にヘッド部
および押圧機構の工夫により、段差対策、大押付け力が
実現できる．例えば、４則厚のコイル材へも適用可能と
なる．
■ 信頼性の高い仮付け溶接が可能になる．端面凹凸修
正工程の分離により、強力修正実施が可能となり、コン
ピュータによるＩｊＩ．１１ ？Ｗ ｔＨ条件の選定が
でき、幅方向２点以上の仮付け実施（実機では４点）が
でき、間接通電法採用による安定した溶接制御ができ、
空気バネ方式採用による十分な押付け力を確保できる．
■ コイル・センタリングのズレに対処できる．阪付け
溶接ユニット自身の必要時、フローティング機能および
チップホルダ工夫により、本体剛性を寓めることなく、
センタリングのズレに対応ができる．
■ 楕遣が比較的簡単かつ安価である．金属リボンを必
要とせず、押圧力、溶接条件変更による仮付け動作およ
び機器構成に大幅な変更がない．また、仮付け溶接ユニ
ット移動方式により装置は１台で処理か可能となり、特
殊ユニット方式により装置剛性の低減化を図られる．
■ 全自動動作により要員不要となる．■ Applicable to a wide range of plate thicknesses and materials. In particular, by devising the head section and pressing mechanism, it is possible to counteract unevenness and achieve large pressing force. For example, it can be applied to coil materials with four standard thicknesses. ■ Enables highly reliable tack welding. By separating the end face unevenness correction process, it is possible to carry out powerful correction, and IjI. 11? W tH conditions can be selected, tack welding can be performed at two or more points in the width direction (four points in the actual machine), and stable welding control can be performed by adopting the indirect energization method.
Adopting an air spring system ensures sufficient pressing force. ■ Can deal with misalignment of coil centering. When necessary, the Sakazuke welding unit itself can be used without compromising the rigidity of the main body due to its floating function and tip holder design.
Can deal with misalignment of centering. ■ Ellipse is relatively easy and inexpensive. No metal ribbon is required, and there are no major changes to the tacking operation or equipment configuration due to changes in pressing force or welding conditions. In addition, the tack welding unit movement system allows processing with a single device, and the special unit system reduces the rigidity of the device. ■ Fully automatic operation eliminates the need for personnel.
第１図は本発明の金属コイル内径溶接装置の側面図．第
２図は本発明の装置の仮付け溶接ヘッドの側面図．第３
図は第２図のＩｌｌ−１線からみた正面図．第４図は第
３図のＩＶ − ＩＶ線からみた部分正面図．第５図は
第３図のＶ−Ｖ線からみた部分正面図．
１：金属コイル ２：直立スタンド３：水平アー
ム ４：ｖｉ付け溶接へッド５：駆動制１１！Ｉ
ＪＲ器 １１：内径端１２：内周面 ４１：金
属ｔ４Ａ接触ユニット４２：検出ユニット ４３：溶
接ユニット４４：押圧ユニント ５２：走行用モータ
５３：昇降用ユニット ５４：旋回用モータ５５：走行
用ボール軸 ５６：昇降用ボール軸特許出願人 住友
金属工業株式会社
（外４名）
簗，３図
尾２図
Ｅ
ＴｆFigure 1 is a side view of the metal coil inner diameter welding device of the present invention. Figure 2 is a side view of the tack welding head of the device of the present invention. Third
The figure is a front view seen from line Ill-1 in Figure 2. Figure 4 is a partial front view taken from line IV-IV in Figure 3. Figure 5 is a partial front view taken along line V-V in Figure 3. 1: Metal coil 2: Upright stand 3: Horizontal arm 4: Welding head with VI 5: Drive control 11! I
JR device 11: Inner diameter end 12: Inner peripheral surface 41: Metal t4A contact unit 42: Detection unit 43: Welding unit 44: Pressing unit 52: Traveling motor 53: Lifting unit 54: Swivel motor 55: Traveling ball shaft 56: Lifting ball shaft patent applicant: Sumitomo Metal Industries, Ltd. (4 others), 3 figures tail 2 figures E Tf
Claims (1)
を行う装置において、金属コイルの軸心にそって前進後
退をする直立スタンドと、該直立スタンドに昇降自在に
かつ金属コイル軸心と平行な軸のまわりに回転自在に取
り付けられた水平アームと、該水平アームの自由端に取
り付けられた仮付け溶接ヘッドと、前記直立スタンド、
水平アームおよび仮付け溶接ヘッドを駆動制御する機器
とからなり、前記仮付け溶接ヘッドが金属コイル内径巻
端を検出する検出ユニットと、該巻端をコイル内周面に
仮付け溶接する溶接ユニットと、該溶接ユニットをコイ
ル内周面に弾性変位自在に押し付ける押圧ユニットとを
有していることを特徴とした金属コイル内径溶接装置。 ２、前記溶接ユニットが前記金属コイル内径巻端をコイ
ル内周面にスポット溶接することを特徴とした請求項１
記載の装置。[Scope of Claims] 1. An apparatus for tack welding the inner diameter winding end of a metal coil to the inner peripheral surface of the coil, including an upright stand that moves forward and backward along the axis of the metal coil, and that can be freely raised and lowered from the upright stand. a horizontal arm rotatably mounted around an axis parallel to the axis of the metal coil; a tack welding head mounted on the free end of the horizontal arm; and the upright stand;
The tack welding head comprises a horizontal arm and a device for driving and controlling the tack welding head, a detection unit for the tack welding head to detect the end of the inner diameter winding of the metal coil, and a welding unit for tack welding the end of the winding to the inner peripheral surface of the coil. and a pressing unit that presses the welding unit against the inner peripheral surface of the coil so as to be elastically displaceable. 2. Claim 1, wherein the welding unit spot-welds the inner diameter winding end of the metal coil to the inner peripheral surface of the coil.
The device described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1057616A JPH02235580A (en) | 1989-03-09 | 1989-03-09 | Metallic coil inside diameter welding equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1057616A JPH02235580A (en) | 1989-03-09 | 1989-03-09 | Metallic coil inside diameter welding equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02235580A true JPH02235580A (en) | 1990-09-18 |
Family
ID=13060809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1057616A Pending JPH02235580A (en) | 1989-03-09 | 1989-03-09 | Metallic coil inside diameter welding equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02235580A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5302795A (en) * | 1990-09-13 | 1994-04-12 | Hitachi, Ltd. | Welding equipment for fabricating a combustion liner |
| CN103286429A (en) * | 2013-04-03 | 2013-09-11 | 宁波正欣制冷设备有限公司 | Efficient energy-saving and noise-reducing servo spot-welding equipment |
| WO2020249284A1 (en) | 2019-06-13 | 2020-12-17 | Sms Group Gmbh | Fixing a strip end segment of a metal strip coil to an adjacent strip winding |
| CN114473317A (en) * | 2022-04-18 | 2022-05-13 | 新沂市向荣电子有限公司 | Micro motor coil automatic weld machine |
-
1989
- 1989-03-09 JP JP1057616A patent/JPH02235580A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5302795A (en) * | 1990-09-13 | 1994-04-12 | Hitachi, Ltd. | Welding equipment for fabricating a combustion liner |
| CN103286429A (en) * | 2013-04-03 | 2013-09-11 | 宁波正欣制冷设备有限公司 | Efficient energy-saving and noise-reducing servo spot-welding equipment |
| CN103286429B (en) * | 2013-04-03 | 2015-04-22 | 宁波正欣制冷设备有限公司 | Efficient energy-saving and noise-reducing servo spot-welding equipment |
| WO2020249284A1 (en) | 2019-06-13 | 2020-12-17 | Sms Group Gmbh | Fixing a strip end segment of a metal strip coil to an adjacent strip winding |
| CN113950387A (en) * | 2019-06-13 | 2022-01-18 | Sms集团有限公司 | Fastening of a strip end section of a metal strip coil to an adjacent strip coil |
| CN114473317A (en) * | 2022-04-18 | 2022-05-13 | 新沂市向荣电子有限公司 | Micro motor coil automatic weld machine |
| CN114473317B (en) * | 2022-04-18 | 2022-06-14 | 新沂市向荣电子有限公司 | Micro motor coil automatic weld machine |
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