JP3891393B2

JP3891393B2 - Distribution equipment and steel structure assembly equipment

Info

Publication number: JP3891393B2
Application number: JP2001067553A
Authority: JP
Inventors: 木新平青; 正三上; 田良介杉
Original assignee: 日鐵住金溶接工業株式会社
Priority date: 2001-03-09
Filing date: 2001-03-09
Publication date: 2007-03-14
Anticipated expiration: 2021-03-09
Also published as: JP2002263888A

Description

【０００１】
【発明の属する技術分野】
本発明は、鋼板体の上面に鋼条材を配置する配材装置およびそれを設置した鋼構造物組立設備に関し、特に、これに限定する意図では無いが、広幅かつ長尺の鋼板の複数枚を長辺の溶接により１枚にした、船体あるいは橋梁に用いられる大板にロンジなどの鋼条材を組付ける鋼条材配材装置、ならびに、それを用いて、大板の前記長辺の溶接線に対して鋼条材を平行に配置した鋼構造物および溶接線に対して直角に配置した鋼構造物を選択的に製造しうる鋼構造物組立設備に関する。
【０００２】
【従来の技術】
例えば、船底，デッキ，橋梁などに、下パネルの上平面に複数のロンジを垂直に立てて溶接し、ロンジ上に上パネルを載せてそれらの間を溶接した鋼構造体が用いられる。この鋼構造体の組立では、例えば２０ｍ×３０ｍのパネル（大板）上に、２０ｍ又は３０ｍのロンジ（条材）を垂直に立てて位置決めし、ロンジの長手方向各点で水平隅肉溶接により仮付溶接し、所要本数のロンジを仮付けした後、本溶接を実施してロンジの全長を大板に溶接する。
【０００３】
このような鋼構造体の製造ラインの一例を図１に示す。大板３の素材である広幅且つ長尺の鋼板が、その幅方向を搬送方向ｘに合わせて、搬送ライン１で、片面溶接装置２の直下に搬送されて、先行して搬送した鋼板と、長辺が溶接される。所要枚数を順次に溶接して出来た大板３は、配材装置５の場所に移される。そこでは、配材装置５を使用して、ロンジを大板上に配材し、自動溶接又は手溶接で、ロンジを大板に仮付溶接する。所要数のロンジを仮付溶接した大板は、ロンジ溶接装置６の場所に搬送して、そこでロンジ全長の溶接すなわち本溶接を行う。この種の組立て装置が、特公昭５１−２０３８１号公報および特公昭５２−１２９９９号公報に提示されている。
【０００４】
図１に示す配材装置５は、ｙ方向に平行にして図示しないスキッドに整然と並べられているロンジを、ｙ方向に平行な姿勢を維持して保持し、大板上に運搬し、大板上の所要位置に位置決めする。したがつて、大板上でもロンジは、ｙ方向に平行である。すなわち、ロンジの長手方向はｙ方向であり、大板の、ｙ方向に延びる板継溶接線と平行である。
【０００５】
大板にロンジを仮付溶接する時には、例えば特開平３−２３４３７０号公報に開示しているように、大板上に立てたロンジを挟むようにその厚み方向に相対向して鋼球を突き出して挟持して水平面に沿う方向の位置決めをし、更に、押下シュー又はローラをロンジの上面に圧接してロンジを大板に押しつけ、この押しつけ部を仮付溶接することが行われている。ところで、このような仮付組立の前に、大板上にロンジを立てて配置しておく必要がある。そこで本出願人は特許第３１１１１２８号の位置決め装置を開発した。これは、ｘ走行の門型台車上のｙビームに５組のクランパを装備して、それらで置場にあるロンジを挟持して大板上に搬送して位置決めし、押さえ部材を下駆動してロンジを大板に押しつけて、押し付け部を仮付溶接する。
【０００６】
【発明が解決しようとする課題】
ところがロンジを挟持するクランパは、上下逆Ｕ字型の基枠の相対向２脚にそれぞれ水平回動する支えアームと押さえアームを回動自在に装備し、押さえアームには押さえシューを突出す油圧シリンダを装備し、ロンジを挟持するする時には支えアームと押さえアームを、ロンジの長手方向ｙと平行な退避位置から、ｙに直交する挟持位置（ｘに平行な姿勢）に回動し、そして油圧シリンダで押さえシューを突出すことによりロンジを挟持する。支えアームと押さえアームの水平回動空間が必要であるので、上下逆Ｕ字型の基枠の相対向２脚間の空間が広く、該基枠のｘ方向（ロンジの厚み方向）の幅（ロンジの厚み方向）が広く、ロンジを短ピッチで配列し得ない。また、クランパが上下逆Ｕ字型の基枠に、支えアームと押さえアーム，これらを水平回動駆動する機構およびシューを突出す油圧シリンダを装備するので、大形で高重量となり、このようなクランパを複数支持するｙビームおよび門型台車が堅牢且つ大型になり、高価な設備になってしまう。加えて、高重量を運搬するので、作業速度が低くなる。
【０００７】
また、鋼条材を鋼板に圧下しても、鋼条材の下底の凹凸，鋼板の反り又は撓み、あるいは、鋼板が不等厚等により、鋼条材と鋼板とが密着しにくい場合がある。
【０００８】
一方、大板上の溶接線に対してロンジが直交するように配材する要求がある場合がある。大板に適用するものではないが実開昭６３−１２２７５９号公報の図面には、複数台の隅肉溶接機を支持する支持梁を門型架台に、垂直軸を中心に回転可に支持して、直交２方向ｙ，ｘのいずれが条材の長手方向でも、溶接機支持梁を９０度回転させることにより、隅肉溶接を可能にする溶接設備が開示されている。
【０００９】
大板に対するロンジの配材に関しては、本出願人の特開平８−８４９３９号公報がある。これにおいては、多数のロンジクランパを支持する水平支持梁を、走行台で垂直軸を中心に旋回可に吊り下げ支持して、大板に対してロンジを直交２方向ｙ，ｘのいずれかに平行に配材しうる。
【００１０】
しかしながら、多数のロンジクランパを支持する水平支持梁を垂直軸を中心に旋回可に支持する機構は、回転支持部の構造を堅固にする必要があって機構が大型化して、設備が高価になる。
【００１１】
本発明は、鋼条材を比較的に短いピッチで配列しうる配材装置を提供することを第１の目的とし、鋼板に対する鋼条材の位置調整を比較的に正確に容易にできる配材装置を提供することを第２の目的とし、鋼条材と鋼板とをより密着させることを第３の目的とし、鋼条材の保持およびその解除の作業を簡易にすることを第４の目的とし、低価格の配材装置を提供することを第５の目的とする。また、水平支持梁を垂直軸を中心に旋回駆動する配材装置を必要とせずに、鋼条材を鋼板に対して直行２方向のいずれの姿勢でも配置可能な鋼構造物組立設備を提供することを第６の目的とし、これを可及的に簡単および又は安価な、板支持が安定する機構で実現する鋼構造物組立設備を提供ことを第７の目的とする。
【００１２】
【課題を解決するための手段】
（１）ｘ方向に走行するｘ走行台車(41)；
ｘ走行台車に装備した、ｙ方向に延びるガーダ(46)；
ガーダを昇降駆動するｚ駆動手段(44,45)；
ガーダで支持された、ｙ方向に延びるフレーム(51)；
され、ｙ方向に延びる鋼条材にｘ方向で吸着する、ｙ方向に分布する複数個の条材吸着電磁石(61-71)；
ガーダで支持されｙ方向に走行するｙ走行体(55,56)；
条材吸着電磁石が吸着した鋼条材を下方に圧下するための、ｙ走行体で支持された押下部材(81)；および、
押下部材を昇降駆動する圧下駆動手段(58)；
を備える配材装置。
【００１３】
なお、理解を容易にするためにカッコ内には、図面に示し後述する実施例の対応要素又は相当部材もしくは対応事項の記号を、参考までに付記した。以下も同様である。
【００１４】
これによれば、置場に立ててある鋼条材の垂直面に条材吸着電磁石(61-71)が対向するまでガーダ(46)を降ろし、条材吸着電磁石に通電することにより、鋼条材を保持することができる。条材吸着電磁石が、ｙ方向に延びる鋼条材にｘ方向で吸着する姿勢でフレームで支持されているので、複数のｘ方向に配列しそれぞれがｙ方向に延びる鋼条材のｘ方向の配列ピッチは、フレームと条材吸着電磁石を合わせたｘ方向幅より広ければよく、短ピッチで複数の鋼条材を配列出来る。
【００１５】
鋼条材を条材吸着電磁石で吸着保持すると、ガーダ(46)を上げ、そしてｘ走行台車(41)を駆動して、鋼板上の所要ｘ位置でｘ走行台車(41)を止めて、ガーダ(46)を下げて鋼条材の下端を鋼板に当て、そして押下部材(81)で鋼条材の上端を圧下する。圧下したｙ位置で鋼条材と鋼板との間を仮付溶接する。次に押下部材(81)を上げてｙ走行体(55,56)を走らせて次の仮付位置に移動する。このようにして鋼条材を鋼板に固定出来る。
【００１６】
【発明の実施の形態】
（２）ｘ走行台車(41)上において、ガーダ(46)の一端部および他端部をそれぞれｘ方向に駆動する第１のｘ駆動手段(49)および第２のｘ駆動手段(50)；を更に備える。
【００１７】
これによれば、ｘ走行台車(41)のｘ位置に対して、フレーム(51)で保持した鋼条材の一端部および他端部のｘ位置をそれぞれ個別に調整することができる。すなわち、鋼条材のｘ位置の調整およびｙ方向に対する平行度又は傾きの調整をする事ができる。
【００１８】
（３）ｘ走行台車(41)上において、フレーム(51)をｙ方向に駆動するｙ駆動手段(53)；を更に備える。これによれば、ｘ走行台車(41)のｙ位置に対して、フレーム(51)で保持した鋼条材のｙ位置を調整することができる。
【００１９】
（４）ｙ方向に分布する複数個の条材吸着電磁石は、同一ｙ位置に上下一対(76,77)あり；フレーム(51)に、上位置の条材吸着電磁石を支持しその垂直位置をずらす高さ調整機構(73-75)を装備した。
【００２０】
これによれば、鋼条材の高さに合わせて調整機構(73-75)で上位置の条材吸着電磁石の高さを調整出来る。高さの異なる鋼条材の配材に適合する。
【００２１】
（５）下方にある鋼板の上面に吸着するための引上げ電磁石(85,86)、および、ｙ走行体(55,56)にあって引上げ電磁石を昇降駆動する引上げ駆動手段(83,84)；を更に備える。
【００２２】
これによれば、押下部材(81)で鋼条材を鋼板(3)に向けて押下すると同時に、引上げ電磁石(85,86)を鋼板(3)に吸着させて引上げ駆動手段(83,84)で引上げ電磁石を上駆動して鋼板(3)を持ち上げ、これにより鋼板(3)に鋼条材(80)を密着させることが出来る。鋼板(3)が不等厚で下面の凹凸により鋼板(3)が撓んで正面が反っている場合でも、鋼板(3)に鋼条材(80)を密着させることが出来る。
【００２３】
（６）ｙ走行体(55,56)は、ｙ方向の視線で見ると下に開いたコの字形であつてガーダ(46)を跨ぎ、ガーダ(46)でその下面の下方にフレーム(51)を吊下げ支持した、上記（５）の配材装置。これにより、フレーム(51)がガーダ(46)の直下に位置し、したがって、条材吸着電磁石(61-71)がガーダ(46)の下方で鋼条材を保持する。
【００２４】
（７）引上げ電磁石(85,86)とそれを昇降駆動する引上げ駆動手段(83,84)との組体は複数組であり、ｙ走行体(55,56)のコの字形の、ガーダ(46)を間において相対向する垂直枠材のそれぞれに各引上げ駆動手段(83,84)を装着した、上記（６）の配材装置。
【００２５】
ガーダ(46)の下方の鋼条材を間においてｘ方向に引上げ電磁石(85,86)が分布するので、鋼条材の下方の鋼板が、バランスよく垂直に引き上げられる。
【００２６】
（８）押下部材(81)は、ガーダ(46)の垂直側面に平行であって圧下駆動手段(58)で垂直駆動される垂直な上部分と、それに連続しｙ走行体(55,56)の下方で条材吸着電磁石の上方までｘ方向に延びた下部分を含むくの字形である、上記（６）または（７）載の配材装置。
【００２７】
これによれば、押下部材(81)がｙ走行体(55,56)の外から、その下方に廻り込むので、圧下駆動手段(58)を容易にｙ走行体(55,56)に装備することができる。ｙ走行体(55,56)が簡略になる。
【００２８】
（９）ｘ方向に鋼板を搬送するためのｘ搬送ライン(1)；
該ｘ搬送ライン(1)上にあって、平板状に並べた長方形の複数の鋼板の長辺どうしを溶接して大形板に集成する溶接装置(2)；
ｘ搬送ライン(1)上にあって、該大形板をｘ搬送ライン(1)の鋼板支持レベルより上方に押し上げそして旋回駆動する旋回装置(4)；および、
ｘ方向に走行するｘ走行台車(41)，このｘ走行台車に装備した、ｙ方向に延びるガーダ(46)，このガーダを昇降駆動するｚ駆動手段(44,45)，前記ガーダで支持された、ｙ方向に延びるフレーム(51)，このフレームで支持され、ｙ方向に延びる鋼条材にｘ方向で吸着する、ｙ方向に分布する複数個の条材吸着電磁石(61-71)，前記ガーダで支持されｙ方向に走行するｙ走行体(55,56)，条材吸着電磁石が吸着した鋼条材を下方に圧下するための、該ｙ走行体で支持された押下部材(81)、および、押下部材を昇降駆動する圧下駆動手段(58)、を備え、前記溶接装置(2)が製造しｘ搬送ライン(1)で搬送された大形板あるいは更に前記旋回装置(4)で旋回を施した大形板の上に、ｙ方向に長手軸を揃えて鋼条材を配置する配材装置；
を含む鋼構造物組立設備。
【００２９】
これによれば、水平支持梁を垂直軸を中心に旋回駆動する配材装置を必要とせずに、鋼条材を鋼板に対して直行２方向のいずれの姿勢でも配材出来る。また、上記（１）荷記述した作用効果が得られる。
【００３０】
（１０）前記旋回装置は、垂直方向ｚに昇降する昇降架台(11,12,13)；および、該昇降架台に、ｘ−ｙ水平面上の、一点(16)を中心とする円周上に分散する形で配設された複数個の、回転軸が該円周の半径方向に延びたフリクションローラ(24)を含み、垂直方向ｚに伸縮しうる複数個の旋回支持装置(17,18)；を備える。
【００３１】
これによれば、昇降架台(11,12,13)を下位置すなわち退避位置においておき、板(3)が例えばｘ方向に搬送されて昇降架台の上方に来ると、昇降架台を上げて、フリクションローラ(24)で板(3)を下支持する。そしてフリクションローラ(24)の回転駆動もしくは板(3)の引き廻し又は押し廻しによって、板(3)を任意の角度回転させることが出来る。板(3)が前述の大板でそれに前述のロンジを配材する場合には、ロンジの長手方向がｙで、これをｘにするように旋回させることができない場合でも、大板を９０度回転させることにより、ロンジの配材を、大板の溶接線（ｙ方向）に直角な方向（ｘ方向）にする事が出来る。すなわち、水平支持梁を垂直軸を中心に旋回駆動する配材装置を必要としない。
【００３２】
板(3)が、そのｘ，ｙ面上の場所によって厚みが異なる不等厚板である場合、例えば異厚片面溶接によって厚みが異なる鋼板を溶接して出来た大板、である場合でも、旋回支持装置(17,18)が垂直方向ｚに伸縮しうるので、実質上すべてのフリクションローラ(24)が板(3)の下面に当たって下支持するので、板(3)の支持が安定であり、旋回も滑らかである。
【００３３】
ｘ，ｙ水平面に分布する複数の旋回支持装置(17,18)を介して、昇降架台(11,12,13)を上駆動して板(3)を下支持する構造は、簡単および安価な機構で実現できると共に、板(3)を安定に支持し且つ安定して旋回させることができる。
【００３４】
（１１）前記フリクションローラ (24)に載った板をその下で支える、前記一点(16)を中心に旋回が可能でありしかも垂直方向ｚにクッション機能があるセンターターンテーブル(15)；を更に備える。
【００３５】
これによれば、センターターンテーブル(15)がクッションの弾力で板(3)に圧接する。このテーブル(15)は板(3)の旋回中心(16)を中心に旋回可能であるので、板(3)の旋回を妨げることは無い。板(3)の下支持が安定すると共に、板(3)の直線移動すなわち横滑りを防ぐ。
【００３６】
（１２）旋回支持装置(17,18)は、出力軸に前記フリクションローラが結合した減速機(22)，該減速機を回転駆動する電気モータ(23)、および、該減速機の基台(21)を支えるクッション部材(27)を含む。
【００３７】
これによれば、板(3)は旋回支持装置(17,18)で旋回駆動される。例えば板(3)が、不等厚の大板の場合、それが厚いところの旋回支持装置のクッション部材(27)は大きく縮み、薄いところの旋回支持装置のクッション部材(27)は縮みが少なく、自動的に支え荷重が均等になるように旋回支持装置(17,18)が伸縮する。したがって、板(3)の支持が安定であり、旋回も滑らかである。
【００３８】
（１３）更に、前記昇降架台(11,12,13)に、ｘ−ｙ水平面上の、前記一点(16)を中心とする円周上に分散する形で配設された複数個の、回転軸が該円周の半径方向に延びたアイドルローラ(40)；を備える旋回装置。これによれば、分散配置した旋回支持装置(17,18)の間にアイドルローラ(40)を配置して、旋回支持装置(17,18)の数を減らすことが出来る。
【００３９】
（１４）フリクションローラ(24)はタイヤ車輪である。タイヤ車輪は、弾力性が高くしかも摩擦力が高いので、不等厚の大板の旋回駆動に適する。
【００４０】
（１５）センターターンテーブル(15)は、上面に弾力部材(36)があり前記一点(16)を中心とするリング部材(15)，これを前記一点を中心に旋回可能に下支持および側面支持する下ガイドローラ(33)および側面ガイドローラ(34)ならびに上跳ねを防ぐ上止めローラ(35)、および、これらのローラを回転可能に支持するローラ基台(31)、を含む。
【００４１】
弾力部材(36)が板(3)の下面に当たるのでフリクションが強く、板(3)の横滑り防止効果、とくに不等厚の大板の横滑り防止効果、が高い。
【００４２】
（１６）前記ローラ基台(31)を下支持するクッション部材(32)、を備える。これによれば、例えば板(3)が、不等厚の大板の場合、それが厚いところのクッション部材(32)は大きく縮み、薄いところのクッション部材(32)は縮みが少なく、自動的に支え荷重が均等になるようにセンターターンテーブル(15)が板(3)に圧接する。したがって、板(3)の横滑り止めの信頼性が高い。
【００４３】
本発明の他の目的および特徴は、図面を参照した以下の実施例の説明より明らかになろう。
【００４４】
【実施例】
図１に示す鋼構造物製造ラインの、大板３のｘ方向搬送ライン上の、配材装置５の作業領域に、旋回装置４が設置されている。大板３の素材である広幅且つ長尺の鋼板が、その幅方向を搬送方向ｘに合わせて、搬送ライン１で、片面溶接装置２の直下に搬送されて、先行して搬送した鋼板と、長辺が溶接される。所要枚数を順次に溶接して出来た大板３は、配材装置５の場所に移される。そこで必要に応じて旋回装置４で９０度旋回される。なお、大板３を旋回装置４でｘ，ｙ面に平行な平面に沿って９０度旋回させる場合、配材装置５は、ロンジ溶接装置６の直近の退避位置に駆動（ｘ方向）される。
【００４５】
配材装置５は、ロンジを大板上に配材する。この実施例では手溶接で、ロンジを大板に仮付溶接する。所要数のロンジを仮付溶接した大板は、ロンジ溶接装置６の場所に搬送して、そこでロンジ全長の溶接すなわち本溶接を行う。
【００４６】
図２に、旋回装置４の概要を示す。ｘ方向の大板搬送ラインのｙ方向中央位置には、昇降架台１２があり、それとの間にｘ方向の大板搬送ローラ列の配置空間を開けて、昇降架台１１および１３がある。これらの昇降架台１１−１３は、昇降ガイドローラで垂直方向ｚに昇降可に案内され、しかも、油圧ジャッキで、下方の退避位置から上方の作用位置に、またその逆に駆動される。
【００４７】
中央の昇降架台１２の中心点１６はｘ方向の大板搬送ラインの中心にある。昇降架台１１−１３には、中心点１６を中心とした比較的に短い半径の円周上に、一定ピッチで６個の旋回支持装置１７があり、又、比較的に長い半径の円周上に、一定ピッチで１２個の旋回支持装置１８がある。これらの旋回支持装置１７，１８はすべて同一構造である。
【００４８】
図３に、１つの旋回支持装置１７を拡大して示す。図３の（ａ）は平面図（ただしタイヤ車輪２４は水平破断）、（ｂ）は中心点１６側から見た正面図（ただしタイヤ車輪２４は透視）、（ｃ）は右側面図（ただしタイヤ車輪２４は垂直破断）である。
【００４９】
昇降架台１１に固定された装置基板３８には、ピン２５で減速機基台２１が、ヒンジ結合している。基台２１の自由端すなわちピン２５に回転自在に結合した端部に対向する反対側の端部には、クッション当片２６が固着されており、この当片２６と装置基板３８との間に、厚肉円盤状の、弾力性および伸縮性が高い厚肉チューブ材の袋に空気を封入したエアークッション２７がある。
【００５０】
減速機基台２１には減速機２２が一体であり、その入力軸に電動モータ２３の回転軸が結合している。減速機２２の出力軸には、タイヤ車輪２４の回転軸が結合している。タイヤ車輪２４には空気が圧入されている。タイヤ車輪２４は鋼板に対する摩擦力が大きくしかも弾力性が高い。
【００５１】
旋回支持装置１７およびその他の旋回支持装置も、タイヤ車輪２４の回転中心軸が、中心点１６を中心とする、ｘ，ｙ平面上の半径線に平行になるように、昇降架台１１あるいは１２，１３に固定されている。したがって、大板３が来ているときに昇降架台１１−１３を作用位置に押し上げてタイヤ車輪で大板３を支えて大板３を持ち上げて、そして旋回支持装置（１７）の電気モータ（２３）を回転駆動すると、タイヤ車輪（２４）に載った大板（３）が、中心点１６を中心に回転する。タイヤ車輪２４に弾力性があり、またエアークッション２７に弾力性があるので、大板３が不等厚でも、全旋回支持装置（１７，１８）のタイヤ車輪２４が大板３の下面に圧接して大板３を回転駆動する。例えば大板３が不等厚の場合、それが厚いところの旋回支持装置のクッション部材２７は大きく縮み、薄いところの旋回支持装置のクッション部材２７は縮みが少なく、自動的に支え荷重が均等になるように旋回支持装置（１７，１８）が伸縮する。したがって、大板３の支持が安定であり、旋回も滑らかである。
【００５２】
再度図２を参照する。中央の昇降架台１２には正方形枠状のテーブル架台１４が固着されており、これに、センターターンテーブルのリング部材１５を旋回自在に案内する６個の案内装置１９が、固定されている。これらの６個の案内装置１９は、中心点１６を中心とするリング部材１５の円周に沿って分布している。
【００５３】
図４に、センターターンテーブルを拡大して示す。そして図５に案内装置１９を更に拡大して示す。図５の（ａ）は平面図、（ｂ）は側面ガイドローラ３４部の横断面図である。リング部材１５は、中心点１６を中心とする、横断面がＩ形の鋼リング１５の上面に、接触摩擦が高く少し弾力性がある硬質ゴム３６を積層したものである。
【００５４】
図５を参照する。テーブル架台１４に固定された案内装置基板３９でエアークッション３２が支持され、このエアークッション３２にローラ基台３１が載っている。装置基板３９に立てた３本のピン３７がローラ基台３１を貫通し、これらのピン３７でローラ基台３１が、垂直方向ｚには摺動可ではあるが、ｘおよびｙ方向には移動不可に拘束されている。ローラ基台３１には、リング部材１５の下底を支える下ガイドローラ３３，外側面に対向する側面ガイドローラ３４、および、リング部材１５の上跳ねを防ぐ上止めローラ３５を装備している。リング部材１５はしたがって、その周方向には旋回し得るが、ｘ，ｙ方向に直線移動し得ない。
【００５５】
大板３が来ているときに昇降架台１１−１３を作用位置に押し上げると、タイヤ車輪が大板３に圧接すると共に、リング部材１５の表層の硬質ゴム３６が大板３に圧接する。旋回支持装置１７の電気モータ２３を回転駆動すると、タイヤ車輪２４が回転して大板３が、中心点１６を中心に旋回するが、このとき大板３に圧接したリング部材１５が同じく旋回する。すなわちリング部材１５は大板３の旋回を妨げない。リング部材１５はｘ，ｙ方向に直線移動し得ないので、大板３が直線移動すなわち横ずれ又は縦ずれをしようとしても、リング部材１５がこれを阻止する。大板３に対するリング部材１５の摩擦力が強く、板３の横滑り防止効果、とくに不等厚の大板の横滑り防止効果、が高い。
【００５６】
図２を再度参照する。昇降架台１１−１３には更に、９６個の旋回受けローラ４０が分散設置されている。これらの旋回受けローラ４０は、大板３の旋回時にその撓みを防止する。
【００５７】
再度図１を参照する。詳しくは図６〜図１２を参照して後述するが、配材装置５は、ｘ方向搬送ラインの流れ方向に布設された１対のレール上を移動する門型ｘ走行台車４１に、２台の昇降用チェーンホイスト４４，４５でｙ方向に延びるガーダ４６を吊下げ、このガーダ４６にやはりｙ方向に延びるロンジ保持用フレーム５１を装備し、このロンジ保持用フレーム５１にはｙ方向に１２箇所に分散してロンジを吸着保持するための電磁石６１〜７１を装備し、しかも、ｙ走行台５６をガーダ４６を抱く形でガーダ４６に装着してそれに沿って走行するようにし、このｙ走行台５６に、仮溶接用の溶接装置，ロンジを大板に押しつける圧下クランパ（８１，５８），大板に吸着する引上げ電磁石８５，８６、および、この引上げ電磁石を上駆動する昇降駆動装置８３，８４を備えたものである。
【００５８】
配材装置５は、垂直軸を中心に旋回するビームを備えないので、ｘ方向の搬送ライン１上の配材装置５の作業領域に、長手軸をｙ方向としてロンジを準備する必要がある。
【００５９】
大板３に組付けるロンジは、ｘ方向搬送ライン１の外で、すなわちオフラインで、５〜６本のロンジを受け入れることができるスキッドに、立てて配置し、このスキッドを図示しないクレーンでｘ方向搬送ライン１上の配材装置５の作業領域に搬送し、ロンジの長手方向をｙ方向に実質上平行にして降ろすことにより、配材装置５の作業領域に準備する。
【００６０】
ロンジの長手方向を大板３の片面溶接線と平行にして大板３上に配材する時には、大板３は旋回させる必要が無いので、片面溶接装置２で大板３を製造すると、大板３を配材装置５の作業領域に搬送し、そして上述のようにロンジを配材装置５の作業領域に準備し、そして配材装置５でロンジを大板３上に配材し、仮付溶接する。このとき、配材装置５のｙ走行台車４１を仮付位置の上空に置き、圧下クランパ（８１，５８）でロンジ８０を大板３に向けて押下すると同時に、引上げ電磁石８５，８６を大板３に吸着させて昇降駆動装置８３，８４で引上げ電磁石８５，８６を上駆動して大板３を持ち上げ、これにより大板３にロンジ８０を密着させて、そこを仮付溶接する。
【００６１】
ロンジ８０の長手方向を大板３の片面溶接線に直角にして大板３上に配材する時には、大板３は９０度旋回させる必要があるので、片面溶接装置２で大板３を製造すると、配材装置５をロンジ溶接装置６に直近の退避位置に置いて、大板３を配材装置５の作業領域にある旋回装置４上に搬送し、そして昇降架台１１−１３を作用位置まで上駆動し、そして旋回支持装置１７，１８で大板３を９０度旋回させる。そして昇降架台１１−１３を退避位置まで下げて、配材装置５を作業位置に駆動して、上述のロンジ配材および仮付溶接を行う。
【００６２】
図６を参照する。門型のｘ走行台車４１の、一対のレールのそれぞれに載った脚台車に車輪駆動装置４２および４３があり、これらの車輪駆動装置４２，４３の車輪回転駆動により、ｘ走行台車４１がｘ方向に走行する。
【００６３】
図６〜図１０を参照する。ｙ方向に延びるガーダ４６の両端部がそれぞれ四角枠４７，４８で支持され、これらの四角枠４７，４８がそれぞれｘ走行台車４１の、レール上方の垂直柱で垂直方向（上下方向）ｚに昇降自在に案内され、しかも、それぞれチェーンホイスト４４および４５でｘ走行台車４１に吊り下げられている。
【００６４】
ガーダ４６の両端部はそれぞれ、四角枠４７および４８に、車輪機構５２および５４で、ｘ方向に移動自在に支持され、しかも、スクリュー（ねじ棒）にねじ結合したナットを回転駆動することによりスクリューを直線駆動するｘ駆動機４９および５０で、ｘ方向に駆動される。ガーダ４６の両端部をそれぞれｘ駆動機４９および５０で個別にｘ方向に駆動することにより、ｘ走行台車４１に対するガーダ４６のｘ位置ならびにｘ走行台車４１のｙ方向に延びる梁（ｙ軸）に対するガーダ４６の平行度又は傾きを調整出来る。
【００６５】
ガーダ４６には、この実施例では、２台のｙ走行台５５，５６（図６）を装備している。
【００６６】
図７，図９および図１０を参照すると、ガーダ４６の下面には、ｙ方向に延びる２本の上下に分布する平行ビームに、１１本の垂直柱を一定ピッチで固定した、馬柵状のフレーム５１が、ｙ方向に移動可能に、吊下げられ、スクリューにねじ結合したナットを回転駆動することによりスクリューを直線駆動するｙ駆動機５３（図９）で、ｙ方向に駆動される。このｙ駆動機５３でガーダ４６（ｘ走行台車４１）に対してフレーム５１のｙ位置を調整出来る。
【００６７】
図７を参照すると、フレーム５１の１１本の垂直柱の各脚部には、ロンジ吸着用の電磁石組体６１〜７１のそれぞれが装着されている。
【００６８】
図１１を参照して、第１組の電磁石組体６１の構造を説明する。フレーム５１の垂直柱の脚部に固着した組体基板には直接に支持ブロック７２が固定されており、このブロック７２に、下側電磁石７６が装着されている。組体基板には、ハンドル７５が付いた垂直ねじ棒７４が回転自在に支持されている。
【００６９】
可動ブロック７３の雌ねじ穴にねじ棒７４がねじ結合ししかもそれを垂直方向に貫通している。可動ブロック７３は、組体基板の垂直溝に嵌りこんで、垂直に昇降自在に案内されている。この可動ブロック７３に、上側電磁石７７が装着されている。ハンドル７５を廻すことにより、上側電磁石７７の垂直方向の位置すなわち高さを調整出来る。電磁石７６，７７の鋼板吸着面７８は、ｘ方向に直交する。すなわち、ｙ−ｚ平面に平行である。他の電磁石組体６２〜７１の構造も、第１組の電磁石組体６１と同じである。
【００７０】
図１２に、ガーダ４６の横断面を拡大して示す。ガーダ４６に載ったｙ走行台５６は、ｙ方向の視線で見ると、ガーダ４６の上面および垂直２側面に対向する下向きに開いたコの字型の枠体であり、ガーダ４６上を、それが延びる方向ｙに走行できる。５７が、ガーダ４６の上面に載った走行車輪を回転駆動する電気モータである。
【００７１】
ｙ走行台５６の下向きコの字型の枠体の対向２脚のそれぞれに、エアーシリンダ８３および８４が装着されており、これらの伸縮ロッドに、大板引上げ用の電磁石８５および８６が吊されている。
【００７２】
ｙ走行台５６の下向きコの字型の枠体の一脚に、くの字形の押さえアーム８１の垂直上半部が垂直方向に昇降可能に支持され、エアーシリンダ５８で昇降駆動される。押さえアーム８１の斜め下半分はガーダ４６の下面の下方に廻りこむように延びて、その下端は、電磁石７７の吸着面の上方に位置する。
【００７３】
ロンジ８０を大板３上に配置し、図１２に示すように、押さえアーム８１を下駆動してロンジ８０を圧下し、しかも引き上げ用の電磁石８５，８６を大板３の上に降ろして通電して大板３に吸着し、そしてエアーシリンダ８３，８４で電磁石８３，８４を引上げ駆動することにより、大板３が浮き上げられ、電磁石８３，８４があるｙ位置で、ロンジ８０の下底に大板３の上面が密着する。
【００７４】
図１２上の８７および８８は溶接ワイヤ送給装置であり、この実施例では、それらから溶接ワイヤを供給される、手操作用の溶接装置がｙ走行台５６に掛けてある。仮付け作業者が、溶接装置をｙ走行台５６から取り外して、ロンジ８０と大板の間を仮付溶接する。
【００７５】
ｙ走行台５５の構造および機能も、上述のｙ走行台５６と同じであり、ｙ走行台５５および５６を同時に使用できる。
【図面の簡単な説明】
【図１】（ａ）は、大板にロンジを溶接した鋼構造物を製造するラインの概要を示す平面図、（ｂ）は、側面図である。
【図２】図１に示す旋回装置４の主要部を拡大して示す平面図である。
【図３】（ａ）は図２に示す旋回支持装置１７の拡大平面図、（ｂ）は正面図、（ｃ）は右側面図である。
【図４】図２に示すリング部材１５の拡大平面図である。
【図５】（ａ）は図４に示す案内装置１９の拡大平面図、（ｂ）は（ａ）に示す側面ガイドローラ３４部での案内装置１９の横断面図である。
【図６】図１に示す配材装置５の拡大平面図である。
【図７】図６に示す配材装置５の背面図である。
【図８】図６に示す配材装置５の拡大右側面図である。
【図９】図７の１部分を更に拡大して示す背面図である。
【図１０】図７に示すガーダ４６の一端部を拡大して示す平面図である。
【図１１】（ａ）は図７に示す電磁石組体６１の拡大背面図、（ｂ）は（ａ）の１１Ｂ−１１Ｂ線断面図である。
【図１２】図６に示すガーダ４６の拡大横断面図である。
【符号の説明】
１：ｘ搬送ライン２：片面溶接装置
３：大板４：旋回装置
５：配材装置６：ロンジ溶接装置
１１−１３昇降架台１４：テーブル架台
１５：リング部材１６：中心点
１７，１８：旋回支持装置
１９：案内装置２１：基台
２２：減速機２３：電動モータ
２４：タイヤ車輪２５：ピン
２６：クッション当片
２７：エァークッション
３１：ローラ基台３２：エァークッション
３３：下ガイドローラ
３４：側面ガイドローラ
３５：上止めローラ３６：硬質ゴム
３７：ピン３８：旋回支持装置基板
３９：案内装置基板４０：旋回受けローラ
４１：ｙ走行台車４２，４３：車輪駆動装置
４４，４５：チェーンホイスト
４６：ガーダ４７，４８：四角枠
４９，５０：ｘ駆動機
５１：フレーム５３：ｙ駆動機
５２，５４：車輪機構
５５，５６：ｙ走行台
５７：電気モータ５８：エァーシリンダ
６１−７１：電磁石組体
７２：固定ブロック７３：可動ブロック
７４：ねじ棒７５：ハンドル
７６，７７：電磁石７８：吸着面
８０：ロンジ８１：押さえアーム
８３，８４：エァーシリンダ
８５，８６：電磁石８７，８８：溶接ワイヤ送給装置[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a distribution device for disposing a steel strip on the upper surface of a steel plate body and a steel structure assembly facility in which the steel strip is installed, and in particular, although not intended to be limited thereto, a plurality of wide and long steel plates. Steel strip material distribution device for assembling steel strip material such as Longi to a large plate used for hulls or bridges, and the long side of the large plate The present invention relates to a steel structure in which steel strips are arranged in parallel to a weld line and a steel structure assembly facility capable of selectively producing a steel structure arranged at a right angle to the weld line.
[0002]
[Prior art]
For example, a steel structure is used in which a plurality of longes are vertically mounted on the upper plane of a lower panel on a ship bottom, a deck, a bridge, and the like, and the upper panel is placed on the longe and welded between them. In assembling this steel structure, for example, a 20 m or 30 m longe (strip) is positioned vertically on a 20 m x 30 m panel (large plate), and horizontal fillet welding is performed at each longitudinal point of the longe. After temporary welding and temporarily attaching the required number of longes, the main welding is performed to weld the entire length of the longe to the large plate.
[0003]
An example of such a steel structure production line is shown in FIG. A wide and long steel plate, which is a material of the large plate 3, is transported immediately below the single-sided welding device 2 in the transport line 1 with its width direction aligned with the transport direction x, and a steel plate transported in advance. The long side is welded. The large plate 3 made by welding the required number of sheets sequentially is moved to the place of the distribution device 5. In this case, using the distribution device 5, the longe is distributed on the large plate, and the longe is temporarily welded to the large plate by automatic welding or manual welding. The large plate on which the required number of longages are tack welded is transported to the place of the long welding apparatus 6 where the full length welding, that is, the main welding is performed. This type of assembling apparatus is presented in Japanese Patent Publication No. 51-20381 and Japanese Patent Publication No. 52-12999.
[0004]
The distribution device 5 shown in FIG. 1 holds the longages arranged in order on a skid (not shown) parallel to the y direction while maintaining a posture parallel to the y direction, and transports them on the large plate. Position at the required position above. Therefore, even on the large plate, the longe is parallel to the y direction. In other words, the longitudinal direction of the longe is the y direction, which is parallel to the plate weld line extending in the y direction of the large plate.
[0005]
When temporarily welding a longe to a large plate, as disclosed in, for example, Japanese Patent Laid-Open No. 3-234370, a steel ball is protruded opposite to each other in the thickness direction so as to sandwich the longe standing on the large plate. In this method, positioning in the direction along the horizontal plane is performed, and a pressing shoe or roller is pressed against the upper surface of the longage to press the longage against the large plate, and the pressing portion is temporarily welded. By the way, before such temporary assembly, it is necessary to place a longe on a large plate. Therefore, the present applicant has developed a positioning device of Japanese Patent No. 3111128. This is because five sets of clampers are installed on the y beam on the x-type portal carriage, and the longages in the place are sandwiched and transported on the large plate for positioning, and the holding member is driven downward. The long part is pressed against the large plate, and the pressing part is temporarily welded.
[0006]
[Problems to be solved by the invention]
However, the clamper that clamps the longe is equipped with a support arm and a pressing arm that rotate horizontally on the opposite two legs of the upside-down inverted U-shaped base frame, respectively, and a hydraulic pressure that projects a pressing shoe on the pressing arm. Equipped with a cylinder, when holding the longe, the support arm and the holding arm are rotated from the retracted position parallel to the longitudinal direction y of the longe to the holding position (attitude parallel to x) perpendicular to y, and hydraulic pressure Clamp the longe by protruding the holding shoe with the cylinder. Since a horizontal rotation space between the support arm and the holding arm is required, the space between the two opposing legs of the upside down U-shaped base frame is wide, and the width of the base frame in the x direction (longage thickness direction) ( Longe thickness direction) is wide, and longes cannot be arranged at short pitch. In addition, the clamper is equipped with a support arm and a holding arm, a mechanism for horizontally rotating these and a hydraulic cylinder that protrudes the shoe on the upside-down U-shaped base frame. A y-beam and a portal carriage that support a plurality of clampers become rugged and large, resulting in expensive equipment. In addition, since a high weight is carried, the working speed is lowered.
[0007]
Moreover, even if the steel strip is squeezed into the steel plate, the steel strip and the steel plate may not be in close contact due to unevenness of the bottom of the steel strip, warpage or bending of the steel plate, or unequal thickness of the steel plate. is there.
[0008]
On the other hand, there may be a demand to distribute materials so that the longes are orthogonal to the weld line on the large plate. Although not applied to a large plate, in the drawings of Japanese Utility Model Publication No. 63-122759, a support beam for supporting a plurality of fillet welders is supported on a portal frame and rotatably supported about a vertical axis. Thus, there is disclosed a welding facility that enables fillet welding by rotating the welding machine support beam 90 degrees regardless of which of the two orthogonal directions y and x is the longitudinal direction of the strip.
[0009]
Japanese Patent Application Laid-Open No. 8-84939 filed by the present applicant relates to Longi's distribution material for a large plate. In this case, a horizontal support beam that supports a number of long clampers is suspended and supported by a traveling platform so as to be pivotable about a vertical axis, and the longi is parallel to one of the two orthogonal directions y and x with respect to the large plate. Can be distributed.
[0010]
However, the mechanism that supports the horizontal support beams that support a large number of long clampers so as to be pivotable about the vertical axis needs to make the structure of the rotation support portion firm, which increases the size of the mechanism and makes the equipment expensive.
[0011]
DISCLOSURE OF THE INVENTION A first object of the present invention is to provide a distribution device capable of arranging steel strips at a relatively short pitch, and the distribution of the steel strips can be adjusted relatively accurately and easily with respect to the steel sheet. The second object is to provide an apparatus, the third object is to bring the steel strip and the steel plate into closer contact, and the fourth object is to simplify the work of holding and releasing the steel strip. The fifth object is to provide a low-cost distribution device. Also provided is a steel structure assembling facility in which a steel strip can be arranged in any of two perpendicular directions with respect to a steel sheet without the need for a distribution device for turning the horizontal support beam around the vertical axis. It is a seventh object to provide a steel structure assembling facility that realizes this by a mechanism that stabilizes the plate support as easily and / or as inexpensively as possible.
[0012]
[Means for Solving the Problems]
(1) x traveling carriage (41) traveling in the x direction;
x girder (46) extending in the y direction, equipped on the traveling carriage;
Z drive means (44, 45) for raising and lowering the girder;
Frame (51) extending in the y direction supported by a girder;
A plurality of strip-adsorbing electromagnets (61-71) distributed in the y-direction and attracted in the x-direction to the steel strip extending in the y-direction;
Y-running body (55,56) supported in the girder and running in the y-direction;
A pressing member (81) supported by the y-traveling body for lowering the steel strip adsorbed by the strip adsorbing electromagnet downward; and
A reduction driving means (58) for raising and lowering the pressing member;
A distribution device comprising:
[0013]
In addition, in order to make an understanding easy, the code | symbol of the corresponding element of the Example which is shown in drawing and it mentions later, an equivalent member, or a corresponding matter was added in the parenthesis for reference. The same applies to the following.
[0014]
According to this, the girder (46) is lowered until the strip adsorbing electromagnet (61-71) faces the vertical surface of the steel strip standing on the yard, and the strip adsorbing electromagnet is energized. Can be held. Since the strip adsorbing electromagnet is supported by the frame so as to be attracted in the x direction to the steel strip extending in the y direction, an arrangement in the x direction of the steel strips arranged in a plurality of x directions, each extending in the y direction The pitch only needs to be wider than the width in the x direction of the frame and the strip material adsorption electromagnet, and a plurality of steel strip materials can be arranged at a short pitch.
[0015]
When the steel strip material is attracted and held by the strip material adsorption electromagnet, the girder (46) is raised and the x traveling carriage (41) is driven to stop the x traveling carriage (41) at the required x position on the steel plate. (46) is lowered, the lower end of the steel strip is applied to the steel plate, and the upper end of the steel strip is pressed down by the pressing member (81). Temporary welding is performed between the steel strip and the steel plate at the reduced y position. Next, the pressing member (81) is raised and the y traveling body (55, 56) is run to move to the next temporary attachment position. In this way, the steel strip can be fixed to the steel plate.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
(2) On the x traveling carriage (41), a first x driving means (49) and a second x driving means (50) for driving one end and the other end of the girder (46) in the x direction, respectively; Is further provided.
[0017]
According to this, with respect to the x position of the x traveling carriage (41), the x positions of the one end portion and the other end portion of the steel strip held by the frame (51) can be individually adjusted. That is, it is possible to adjust the x position of the steel strip and the parallelism or inclination with respect to the y direction.
[0018]
(3) The vehicle further includes y driving means (53) for driving the frame (51) in the y direction on the x traveling carriage (41). According to this, the y position of the steel strip held by the frame (51) can be adjusted with respect to the y position of the x traveling carriage (41).
[0019]
(4) A plurality of strip adsorbing electromagnets distributed in the y direction have a pair of upper and lower (76,77) at the same y position; the frame (51) supports the upper strip adsorbing electromagnet and has its vertical position Equipped with a sliding height adjustment mechanism (73-75).
[0020]
According to this, the height of the strip material adsorption electromagnet at the upper position can be adjusted by the adjusting mechanism (73-75) according to the height of the steel strip material. Fits steel strips with different heights.
[0021]
(5) A pulling electromagnet (85, 86) for adhering to the upper surface of the steel plate below, and a pulling drive means (83,84) in the y traveling body (55,56) for driving the pulling electromagnet up and down; Is further provided.
[0022]
According to this, at the same time that the steel strip is pressed toward the steel plate (3) by the pressing member (81), the pulling electromagnet (85, 86) is attracted to the steel plate (3) and the pulling drive means (83, 84) Then, the pulling electromagnet is driven upward to lift the steel plate (3), whereby the steel strip (80) can be brought into close contact with the steel plate (3). Even when the steel plate (3) has an unequal thickness and the steel plate (3) is bent due to unevenness on the lower surface and the front surface is warped, the steel strip (80) can be adhered to the steel plate (3).
[0023]
(6) The y traveling body (55, 56) has a U-shape that opens downward when viewed in the line of sight in the y direction and straddles the girder (46). The girder (46) has a frame (51 ) Is suspended and supported, and the distribution device according to (5) above. As a result, the frame (51) is positioned directly below the girder (46), and thus the strip material adsorption electromagnets (61-71) hold the steel strip material below the girder (46).
[0024]
(7) There are a plurality of sets of the pulling electromagnets (85, 86) and the pulling drive means (83, 84) for driving the lifting electromagnets (85, 86). 46. The material distribution device according to (6) above, wherein each pulling drive means (83, 84) is attached to each of the vertical frame members facing each other between 46).
[0025]
Since the electromagnets (85, 86) are distributed in the x direction between the steel strips below the girder (46), the steel plates below the steel strips are pulled up vertically in a well-balanced manner.
[0026]
(8) The pressing member (81) includes a vertical upper portion that is parallel to the vertical side surface of the girder (46) and is vertically driven by the reduction driving means (58), and a continuous y traveling body (55, 56). The material distribution device according to (6) or (7), wherein the distribution device is a dogleg shape including a lower portion extending in the x direction below the strip material adsorption electromagnet.
[0027]
According to this, since the push-down member (81) goes around from the outside of the y traveling body (55, 56), the reduction driving means (58) is easily installed in the y traveling body (55, 56). be able to. y traveling body (55, 56) is simplified.
[0028]
(9) x transport line (1) for transporting steel plates in the x direction;
A welding device (2) on the x transport line (1) for welding the long sides of a plurality of rectangular steel plates arranged in a flat plate to form a large plate;
a swiveling device (4) which is on the x transport line (1) and pushes the large plate above the steel plate support level of the x transport line (1) and drives it to swivel;
An x traveling carriage (41) traveling in the x direction, a girder (46) installed in the x traveling carriage, extending in the y direction, z driving means (44, 45) for driving the girder up and down, supported by the girder , A frame (51) extending in the y direction, a plurality of strip adsorbing electromagnets (61-71) distributed in the y direction supported by the frame and attracted in the x direction to a steel strip extending in the y direction, the girder A y-running body (55, 56) supported in the y-direction and driven in the y-direction, a pressing member (81) supported by the y-running body for reducing the steel strip adsorbed by the strip adsorbing electromagnet downward, and , A reduction driving means (58) for raising and lowering the pressing member, and a large plate manufactured by the welding device (2) and conveyed by the x conveying line (1) or further swiveled by the turning device (4) A distribution device that arranges steel strips with the longitudinal axis aligned in the y direction on the large plate that has been applied;
Including steel structure assembly equipment.
[0029]
According to this, it is possible to distribute the steel strip material in any of the two directions perpendicular to the steel plate without requiring a distribution device for rotating the horizontal support beam around the vertical axis. In addition, the function and effect described in (1) Load can be obtained.
[0030]
(10) The swivel device includes a lifting platform (11, 12, 13) that moves up and down in the vertical direction z; and the lifting platform on a circumference around a point (16) on an xy horizontal plane. A plurality of swivel support devices (17, 18) that include a plurality of friction rollers (24) that are arranged in a distributed manner and whose rotating shafts extend in the radial direction of the circumference, and that can expand and contract in the vertical direction z. Comprising.
[0031]
According to this, when the lifting platform (11, 12, 13) is placed in the lower position, that is, in the retracted position, and the plate (3) is conveyed, for example, in the x direction and comes above the lifting platform, the lifting platform is raised and the friction is raised. The plate (3) is supported below by the roller (24). The plate (3) can be rotated at an arbitrary angle by rotationally driving the friction roller (24) or drawing or pushing the plate (3). When the plate (3) is the above-mentioned large plate and the above-mentioned longi is distributed to the long plate, even if the longitudinal direction of the longi is y and it cannot be swung so as to be x, the large plate is rotated 90 degrees. By rotating, the Longi distribution material can be in a direction (x direction) perpendicular to the welding line (y direction) of the large plate. That is, there is no need for a distribution device that drives the horizontal support beam to pivot about the vertical axis.
[0032]
When the plate (3) is an unequal thickness plate with different thickness depending on the location on the x, y plane, for example, a large plate made by welding steel plates with different thicknesses by different thickness single side welding, Since the swivel support device (17, 18) can expand and contract in the vertical direction z, substantially all the friction rollers (24) hit the lower surface of the plate (3) and support it downward, so that the support of the plate (3) is stable The turning is also smooth.
[0033]
The structure for driving the lifting platform (11, 12, 13) upward and supporting the plate (3) downward via a plurality of swivel support devices (17, 18) distributed in the x, y horizontal plane is simple and inexpensive. In addition to being realized by the mechanism, the plate (3) can be stably supported and rotated stably.
[0034]
(11) A center turntable (15), which supports a plate placed on the friction roller (24) below, can be turned around the one point (16), and has a cushion function in the vertical direction z. Prepare.
[0035]
According to this, the center turntable (15) is pressed against the plate (3) by the elasticity of the cushion. Since the table (15) can be turned around the turning center (16) of the plate (3), the turning of the plate (3) is not hindered. The lower support of the plate (3) is stabilized, and the plate (3) is prevented from linear movement, that is, side slip.
[0036]
(12) The swivel support device (17, 18) includes a speed reducer (22) in which the friction roller is coupled to an output shaft, an electric motor (23) that rotationally drives the speed reducer, and a base of the speed reducer ( 21) includes a cushion member (27) for supporting.
[0037]
According to this, the plate (3) is swiveled by the swivel support device (17, 18). For example, if the plate (3) is a large plate of unequal thickness, the cushion member (27) of the swivel support device where the plate (3) is thick shrinks greatly, and the cushion member (27) of the swivel support device where it is thin is less shrunk. The swivel support devices (17, 18) expand and contract so that the support load is automatically equalized. Therefore, the support of the plate (3) is stable and the turning is also smooth.
[0038]
(13) Further, a plurality of rotations arranged on the elevating platform (11, 12, 13) in a distributed manner on a circle around the one point (16) on the xy horizontal plane. A swivel device comprising an idle roller (40) having a shaft extending in a radial direction of the circumference. According to this, the idle roller (40) can be arrange | positioned between the rotation support apparatuses (17,18) distributed, and the number of rotation support apparatuses (17,18) can be reduced.
[0039]
(14) The friction roller (24) is a tire wheel. Since the tire wheel has high elasticity and high frictional force, it is suitable for the turning drive of large plates with unequal thickness.
[0040]
(15) The center turntable (15) has an elastic member (36) on the upper surface, and a ring member (15) centered on the one point (16), which can be pivoted about the one point, and supported downward and side A lower guide roller (33) and a side guide roller (34), an upper stopper roller (35) for preventing upward splashing, and a roller base (31) for rotatably supporting these rollers.
[0041]
Since the elastic member (36) hits the lower surface of the plate (3), the friction is strong, and the side slip prevention effect of the plate (3), particularly the side slip prevention effect of the unequal thickness large plate, is high.
[0042]
(16) A cushion member (32) for supporting the roller base (31) below is provided. According to this, for example, when the plate (3) is a large plate of unequal thickness, the cushion member (32) where it is thick shrinks greatly, and the cushion member (32) where it is thin is less shrunk and automatically The center turntable (15) is pressed against the plate (3) so that the load is evenly supported. Therefore, the reliability of the side slip prevention of the plate (3) is high.
[0043]
Other objects and features of the present invention will become apparent from the following description of embodiments with reference to the drawings.
[0044]
【Example】
A swivel device 4 is installed in the work area of the distribution device 5 on the x-direction conveyance line of the large plate 3 in the steel structure production line shown in FIG. A wide and long steel plate, which is a material of the large plate 3, is transported immediately below the single-sided welding device 2 in the transport line 1 with its width direction aligned with the transport direction x, and a steel plate transported in advance. The long side is welded. The large plate 3 made by welding the required number of sheets sequentially is moved to the place of the distribution device 5. Therefore, the turning device 4 turns 90 degrees as necessary. When the large plate 3 is turned 90 degrees along the plane parallel to the x and y planes by the turning device 4, the distribution device 5 is driven (x direction) to the nearest retreat position of the longe welding device 6. .
[0045]
The distribution device 5 distributes the longages on the large plate. In this embodiment, the longe is temporarily welded to the large plate by manual welding. The large plate on which the required number of longages are tack welded is transported to the place of the long welding apparatus 6 where the full length welding, that is, the main welding is performed.
[0046]
In FIG. 2, the outline | summary of the turning apparatus 4 is shown. There is a lifting platform 12 at the center in the y direction of the large plate conveying line in the x direction, and there are lifting platforms 11 and 13 with an arrangement space for the large plate conveying roller row in the x direction therebetween. These lifting platforms 11-13 are guided by a lifting guide roller so as to be movable up and down in the vertical direction z, and are driven by a hydraulic jack from a lower retracted position to an upper working position and vice versa.
[0047]
The center point 16 of the central lifting platform 12 is at the center of the large plate conveyance line in the x direction. The lifting platform 11-13 has six swivel support devices 17 at a constant pitch on the circumference of a relatively short radius centered on the center point 16, and on the circumference of a relatively long radius. There are 12 swivel support devices 18 at a constant pitch. These swivel support devices 17 and 18 have the same structure.
[0048]
FIG. 3 shows one swivel support device 17 in an enlarged manner. 3A is a plan view (however, the tire wheel 24 is horizontally broken), FIG. 3B is a front view seen from the center point 16 side (however, the tire wheel 24 is seen through), and FIG. The tire wheel 24 is vertically broken).
[0049]
The reduction gear base 21 is hinged to the device substrate 38 fixed to the lifting platform 11 with pins 25. A cushion contact piece 26 is fixed to the free end of the base 21, that is, the end opposite to the end portion rotatably coupled to the pin 25, and between this contact piece 26 and the device substrate 38. There is an air cushion 27 in which air is enclosed in a bag of thick-walled tube material having a thick disk shape and high elasticity and elasticity.
[0050]
A reduction gear 22 is integrated with the reduction gear base 21, and a rotary shaft of an electric motor 23 is coupled to an input shaft thereof. The rotating shaft of the tire wheel 24 is coupled to the output shaft of the speed reducer 22. Air is pressed into the tire wheel 24. The tire wheel 24 has a large frictional force against the steel plate and has high elasticity.
[0051]
The swivel support device 17 and other swivel support devices also have the lifting platform 11 or 12, so that the rotation center axis of the tire wheel 24 is parallel to the radial line on the x, y plane with the center point 16 as the center. 13 is fixed. Therefore, when the large plate 3 is coming, the lifting platform 11-13 is pushed up to the working position, the large plate 3 is lifted by supporting the large plate 3 with the tire wheels, and the electric motor (23 of the turning support device (17)) ) Is rotated, the large plate (3) mounted on the tire wheel (24) rotates around the center point 16. Since the tire wheel 24 is elastic and the air cushion 27 is elastic, the tire wheel 24 of the all-turn support device (17, 18) is pressed against the lower surface of the large plate 3 even if the large plate 3 is unequal thickness. Then, the large plate 3 is driven to rotate. For example, when the large plate 3 has an unequal thickness, the cushion member 27 of the turning support device where the thick plate 3 is thick contracts greatly, and the cushion member 27 of the turning support device where the plate 3 is thin is less contracted, and the support load is automatically equalized. Thus, the swivel support devices (17, 18) expand and contract. Therefore, the support of the large plate 3 is stable and the turning is smooth.
[0052]
Refer to FIG. 2 again. A square frame-shaped table frame 14 is fixed to the central lifting frame 12, and six guide devices 19 for rotatably guiding the ring member 15 of the center turntable are fixed thereto. These six guide devices 19 are distributed along the circumference of the ring member 15 around the center point 16.
[0053]
FIG. 4 shows an enlarged center turntable. And the guide apparatus 19 is further expanded and shown in FIG. 5A is a plan view, and FIG. 5B is a cross-sectional view of the side guide roller 34 portion. The ring member 15 is formed by laminating a hard rubber 36 having a high contact friction and a little elasticity on the upper surface of a steel ring 15 having an I-shaped cross section centered on a center point 16.
[0054]
Please refer to FIG. The air cushion 32 is supported by a guide device substrate 39 fixed to the table base 14, and the roller base 31 is placed on the air cushion 32. Three pins 37 erected on the device substrate 39 penetrate the roller base 31, and the roller base 31 can slide in the vertical direction z but moves in the x and y directions. It is restrained. The roller base 31 is equipped with a lower guide roller 33 that supports the lower bottom of the ring member 15, a side guide roller 34 that faces the outer surface, and an upper stopper roller 35 that prevents the ring member 15 from bouncing upward. The ring member 15 can therefore pivot in its circumferential direction but cannot move linearly in the x and y directions.
[0055]
When the elevator base 11-13 is pushed up to the operating position when the large plate 3 is coming, the tire wheels are pressed against the large plate 3, and the hard rubber 36 on the surface layer of the ring member 15 is pressed against the large plate 3. When the electric motor 23 of the turning support device 17 is rotationally driven, the tire wheel 24 rotates and the large plate 3 turns around the center point 16. At this time, the ring member 15 pressed against the large plate 3 also turns. . That is, the ring member 15 does not prevent the large plate 3 from turning. Since the ring member 15 cannot move linearly in the x and y directions, the ring member 15 prevents this when the large plate 3 tries to move linearly, that is, laterally or vertically. The frictional force of the ring member 15 against the large plate 3 is strong, and the side slip prevention effect of the plate 3, particularly the side slip prevention effect of the unequal thickness large plate, is high.
[0056]
Please refer to FIG. 2 again. Further, 96 swivel receiving rollers 40 are installed in a distributed manner on the lifting platform 11-13. These turning receiving rollers 40 prevent the large plate 3 from bending when turning.
[0057]
Refer to FIG. 1 again. Although details will be described later with reference to FIGS. 6 to 12, the distribution device 5 includes two portal-type x traveling carriages 41 that move on a pair of rails laid in the flow direction of the x-direction conveyance line. The girder 46 extending in the y direction is suspended by the lifting chain hoists 44, 45, and the girder 46 is equipped with a longage holding frame 51 that also extends in the y direction. Electromagnets 61-71 for adsorbing and holding the longe by being dispersed to the girder 46 in such a manner that the y traveling platform 56 is held by the girder 46 and traveling along it. 56, a welding apparatus for temporary welding, a pressure clamper (81, 58) that presses the longage against the large plate, pulling electromagnets 85 and 86 that are attracted to the large plate, and a lifting drive unit 8 that drives the pulling electromagnet upward. , It is those with a 84.
[0058]
Since the distribution device 5 does not include a beam that pivots about the vertical axis, it is necessary to prepare a longe in the working area of the distribution device 5 on the conveyance line 1 in the x direction with the longitudinal axis as the y direction.
[0059]
The longe to be assembled to the large plate 3 is placed upright on a skid that can accept 5 to 6 longes outside the x-direction transport line 1, that is, offline, and this skid is placed in the x direction by a crane (not shown). The material is transported to the work area of the distribution device 5 on the transport line 1, and the longitudinal direction of the longi is lowered substantially parallel to the y direction to prepare for the work area of the distribution device 5.
[0060]
When the long plate 3 is distributed on the large plate 3 with the longitudinal direction of the long plate 3 parallel to the single-sided welding line of the large plate 3, the large plate 3 does not need to be rotated. The plate 3 is transported to the work area of the distribution device 5, and the longe is prepared in the work area of the distribution device 5 as described above, and the longi is distributed on the large plate 3 by the distribution device 5. Weld with welding. At this time, the y traveling carriage 41 of the distribution device 5 is placed above the temporary attachment position, and the longitudinal 80 is pushed toward the large plate 3 by the reduction clamper (81, 58), and at the same time, the pulling electromagnets 85, 86 are moved to the large plate. 3, the lifting electromagnets 85, 86 are driven upward by the elevating drive devices 83, 84 to lift the large plate 3, thereby bringing the longe 80 into close contact with the large plate 3 and temporarily welding it.
[0061]
When the long plate 80 is distributed on the large plate 3 with the longitudinal direction of the large plate 3 being perpendicular to the single-side weld line of the large plate 3, the large plate 3 needs to be rotated 90 degrees. Then, the distribution device 5 is placed at the retreat position closest to the long welding device 6, the large plate 3 is conveyed onto the swiveling device 4 in the work area of the distribution device 5, and the lifting platform 11-13 is moved to the working position. Then, the large plate 3 is turned 90 degrees by the turning support devices 17 and 18. Then, the lifting platform 11-13 is lowered to the retracted position, and the distribution device 5 is driven to the working position to perform the above-mentioned longi distribution and temporary welding.
[0062]
Please refer to FIG. The wheel drive devices 42 and 43 are provided on leg carts mounted on each of the pair of rails of the portal-type x traveling vehicle 41, and the x traveling vehicle 41 is moved in the x direction by the wheel rotation driving of these wheel driving devices 42 and 43. Drive to.
[0063]
Please refer to FIGS. Both ends of the girder 46 extending in the y direction are supported by square frames 47 and 48, respectively, and these square frames 47 and 48 are moved up and down in the vertical direction (vertical direction) z by the vertical pillars above the rails of the x traveling carriage 41, respectively. It is guided freely and is suspended from the x traveling carriage 41 by chain hoists 44 and 45, respectively.
[0064]
Both ends of the girder 46 are respectively supported by the square frames 47 and 48 by the wheel mechanisms 52 and 54 so as to be movable in the x direction, and the nuts screwed to the screws (screw rods) are driven to rotate. Are driven in the x direction by x drives 49 and 50 that linearly drive. Both ends of the girder 46 are individually driven in the x direction by x drives 49 and 50, respectively, so that the x position of the girder 46 with respect to the x traveling carriage 41 and the beam (y axis) extending in the y direction of the x traveling carriage 41 The parallelism or inclination of the girder 46 can be adjusted.
[0065]
In this embodiment, the girder 46 is equipped with two y traveling platforms 55 and 56 (FIG. 6).
[0066]
Referring to FIGS. 7, 9 and 10, on the lower surface of the girder 46, 11 vertical pillars are fixed at a constant pitch to two parallel beams extending in the y direction and extending in the vertical direction. The frame 51 is hung so as to be movable in the y direction, and is driven in the y direction by a y driving machine 53 (FIG. 9) that linearly drives the screw by rotationally driving a nut screwed to the screw. The y position of the frame 51 can be adjusted with respect to the girder 46 (x traveling carriage 41) by this y driving machine 53.
[0067]
Referring to FIG. 7, electromagnet assemblies 61 to 71 for longi adsorption are mounted on the legs of the eleven vertical columns of the frame 51.
[0068]
The structure of the first electromagnet assembly 61 will be described with reference to FIG. A support block 72 is directly fixed to the assembly substrate fixed to the leg portion of the vertical column of the frame 51, and a lower electromagnet 76 is attached to the block 72. A vertical screw rod 74 with a handle 75 is rotatably supported on the assembly board.
[0069]
A screw rod 74 is screwed into the female screw hole of the movable block 73 and penetrates it vertically. The movable block 73 is fitted in a vertical groove of the assembly substrate and is guided so as to be vertically movable. An upper electromagnet 77 is attached to the movable block 73. By turning the handle 75, the vertical position, that is, the height of the upper electromagnet 77 can be adjusted. The steel plate adsorption surfaces 78 of the electromagnets 76 and 77 are orthogonal to the x direction. That is, it is parallel to the yz plane. The structure of the other electromagnet assemblies 62 to 71 is the same as that of the first electromagnet assembly 61.
[0070]
FIG. 12 shows an enlarged cross section of the girder 46. The y platform 56 mounted on the girder 46 is a U-shaped frame that opens downward facing the upper surface and two vertical side surfaces of the girder 46 when viewed in the y direction. Can travel in the direction y. Reference numeral 57 denotes an electric motor that rotationally drives a traveling wheel mounted on the upper surface of the girder 46.
[0071]
The air cylinders 83 and 84 are mounted on the two opposing legs of the downwardly U-shaped frame body of the y carriage 56, and the electromagnets 85 and 86 for lifting the large plate are suspended from these telescopic rods. ing.
[0072]
The vertical upper half of the U-shaped holding arm 81 is supported by a monopod of the downwardly U-shaped frame body of the y traveling platform 56 so as to be vertically movable, and is driven up and down by an air cylinder 58. The oblique lower half of the holding arm 81 extends so as to wrap around the lower surface of the girder 46, and the lower end thereof is located above the attracting surface of the electromagnet 77.
[0073]
The longe 80 is disposed on the large plate 3, and as shown in FIG. 12, the holding arm 81 is driven downward to reduce the longe 80, and the lifting electromagnets 85 and 86 are lowered onto the large plate 3 to energize. Then, it is attracted to the large plate 3, and the electromagnets 83, 84 are pulled up and driven by the air cylinders 83, 84, thereby lifting the large plate 3. The upper surface of the large plate 3 is in close contact.
[0074]
Reference numerals 87 and 88 in FIG. 12 denote welding wire feeding devices. In this embodiment, a welding device for manual operation to which a welding wire is supplied is hung on the y platform 56. A tacking operator removes the welding apparatus from the y traveling platform 56 and performs tack welding between the longe 80 and the large plate.
[0075]
The structure and function of the y traveling platform 55 are also the same as the y traveling platform 56 described above, and the y traveling platforms 55 and 56 can be used simultaneously.
[Brief description of the drawings]
FIG. 1A is a plan view showing an outline of a line for manufacturing a steel structure in which a long plate is welded to a large plate, and FIG. 1B is a side view.
FIG. 2 is an enlarged plan view showing a main part of the turning device 4 shown in FIG.
3A is an enlarged plan view of the swivel support device 17 shown in FIG. 2, FIG. 3B is a front view, and FIG. 3C is a right side view.
FIG. 4 is an enlarged plan view of the ring member 15 shown in FIG.
5A is an enlarged plan view of the guide device 19 shown in FIG. 4, and FIG. 5B is a cross-sectional view of the guide device 19 at a side guide roller 34 shown in FIG.
FIG. 6 is an enlarged plan view of the distribution device 5 shown in FIG.
7 is a rear view of the distribution device 5 shown in FIG. 6;
FIG. 8 is an enlarged right side view of the distribution device 5 shown in FIG. 6;
FIG. 9 is a rear view showing a part of FIG. 7 further enlarged.
10 is an enlarged plan view showing one end of the girder 46 shown in FIG. 7. FIG.
11A is an enlarged rear view of the electromagnet assembly 61 shown in FIG. 7, and FIG. 11B is a sectional view taken along line 11B-11B of FIG.
12 is an enlarged cross-sectional view of the girder 46 shown in FIG.
[Explanation of symbols]
1: x conveying line 2: single-sided welding equipment
3: Large plate 4: Swivel device
5: Distribution equipment 6: Longi welding equipment
11-13 Elevating base 14: Table base
15: Ring member 16: Center point
17, 18: Rotating support device
19: Guide device 21: Base
22: Reducer 23: Electric motor
24: Tire wheel 25: Pin
26: Cushion piece
27: Air cushion
31: Roller base 32: Air cushion
33: Lower guide roller
34: Side guide roller
35: Top stopper roller 36: Hard rubber
37: Pin 38: Rotating support device substrate
39: Guide device substrate 40: Rotation receiving roller
41: y traveling carriage 42, 43: wheel drive device
44, 45: Chain hoist
46: Girder 47, 48: Square frame
49, 50: x drive
51: Frame 53: y drive
52, 54: Wheel mechanism
55, 56: y platform
57: Electric motor 58: Air cylinder
61-71: Electromagnet assembly
72: fixed block 73: movable block
74: Screw rod 75: Handle
76, 77: Electromagnet 78: Adsorption surface
80: Longi 81: Holding arm
83, 84: Air cylinder
85, 86: Electromagnet 87, 88: Welding wire feeder

Claims

x traveling cart traveling in the x direction;
x girder that extends in the y direction, equipped on the x traveling carriage;
Z drive means for raising and lowering the girder;
A frame extending in the y direction supported by a girder;
A plurality of strip adsorbing electromagnets distributed in the y direction, which are supported by a frame and attracted in the x direction to a steel strip extending in the y direction;
A y-running body supported in the girder and running in the y-direction;
A pressing member supported by the y-traveling body for lowering the steel strip adsorbed by the strip adsorbing electromagnet; and
A reduction driving means for raising and lowering the pressing member;
A distribution device comprising:

The distribution device according to claim 1, further comprising: a first x driving means and a second x driving means for driving one end and the other end of the girder in the x direction on the x traveling carriage.

The distribution device according to claim 1, further comprising y driving means for driving the frame in the y direction on the x traveling carriage.

A plurality of strip adsorbing electromagnets distributed in the y direction are vertically paired at the same y position; the frame is equipped with a height adjusting mechanism for supporting the upper strip adsorbing electromagnet and shifting its vertical position; The distribution apparatus of Claim 1, Claim 2 or Claim 3.

5. A pulling electromagnet for adsorbing on the upper surface of a steel plate located underneath, and a pulling drive means for driving the pulling electromagnet up and down in the y traveling body. The distribution device described.

The distribution device according to claim 5, wherein the y traveling body has a U-shape that opens downward when viewed in a line of sight in the y direction, straddles the girder, and supports the frame by hanging the girder below the lower surface thereof.

There are a plurality of sets of pulling electromagnets and pulling drive means for driving it up and down, and each pulling drive means is mounted on each of the U-shaped vertical frame members facing each other with the girder between them. The distribution device according to claim 6.

The pressing member includes a vertical upper portion that is parallel to the vertical side surface of the girder and is vertically driven by the reduction driving means, and a lower portion that extends in the x direction below the y traveling body and above the strip adsorbing electromagnet. The distribution device according to claim 6 or 7, wherein the distribution device has a dogleg shape including the shape.

x transport line for transporting steel plates in the x direction;
A welding device for welding long sides of a plurality of rectangular steel plates arranged in a flat plate shape on the x conveying line to assemble them into a large plate;
a swiveling device on the x transport line (1) for pushing the large plate above the steel plate support level of the x transport line and driving the swirling;
x traveling carriage traveling in the x direction, a girder extending in the y direction, equipped with the x traveling carriage, z driving means for driving the girder up and down, a frame extending in the y direction supported by the girder, and supported by the frame A plurality of strip adsorbing electromagnets distributed in the y direction, adsorbed in the y direction to the steel strip extending in the y direction, the y running body supported in the girder and running in the y direction, and the strip adsorbing electromagnet adsorbed A pressing member supported by the y-traveling body for reducing the steel strip downward, and a pressing drive means for driving the pressing member to move up and down. The welding apparatus is manufactured and transported on the x transport line. A distribution device for arranging steel strips with the longitudinal axis aligned in the y direction on the large plate or further on the large plate swiveled by the swivel device;
Including steel structure assembly equipment.

The swivel device includes a lifting platform that moves up and down in a vertical direction z; and a plurality of rotations arranged on the lifting platform in a distributed manner on a circle centered on one point on an xy horizontal plane. The steel structure assembling facility according to claim 9, further comprising: a plurality of swivel support devices whose shaft includes a friction roller extending in a radial direction of the circumference and capable of expanding and contracting in the vertical direction z.