JP2004074257A

JP2004074257A - Method for straightening long material and its straightening device

Info

Publication number: JP2004074257A
Application number: JP2002241165A
Authority: JP
Inventors: Teruhiko Suzuki; 鈴木　輝彦
Original assignee: TECHNO SUZUHIDE KK
Current assignee: TECHNO SUZUHIDE KK
Priority date: 2002-08-21
Filing date: 2002-08-21
Publication date: 2004-03-11

Abstract

<P>PROBLEM TO BE SOLVED: To suitably straighten into the straightness of a long material to be straightened, having rectangular cross section and to improve the workability. <P>SOLUTION: In a method for straightening the straightness of the long material W to be straightened, having the rectangular cross section, this method is composed of a process which intermittently feeds the material W to be straightened in order by a prescribed length to a straightening means 1 for pressing the mutually faced two surfaces of the materials W to be straightened, a straightening process which straightens by partially pressing with a plurality of pressing dies 8, 12 from the mutually faced two direction to the material W to be straightened, fed in this straightening means 1, and a process which intermittently draws out the material W to be straightened from the straightening means 1 in order by the prescribed length according to the completion of feeding the material W to be straightened to the straightening means 1. <P>COPYRIGHT: (C)2004,JPO

Description

【０００１】
【発明が属する技術分野】
本発明は、断面矩形状の長尺物からなる被矯正材料、例えば、リニアガイドにおける案内レール等の真直度を矯正（上下面方向及び左右面方向の曲がりをとる）する方法及びその装置に関するものである。
【０００２】
【従来の技術】
一般に、この種のリニアガイドにおける案内レール等にあっては、冷間引抜により加工された長尺の鋼材が使用されるとともに、所定の機械加工が施されており、その断面矩形状における上下面方向及び左右面方向の曲がりのない、いわゆる４面の真直度が要求されるものであった。
そして、上記長尺の鋼材における上下面方向及び左右面方向の曲がりをとる（４面の真直度を矯正する）手段としてコンベアー状に上下互い違いに配置された押圧ローラ（ピンチローラ）間を通して鋼材の相対向する上下の２面ずつ連続して矯正する手段や、鋼材を２ヶ所の受け台により支えて該受け台間の上方から鋼材を押圧する単一状のプレス装置によって部分的に矯正する手段がある。
【０００３】
【発明が解決しようとする課題】
しかしながら、上記した従来の手段にあって、前者の手段においては、鋼材を押圧ローラ（ピンチローラ）間に通して連続的に矯正し得るため、作業性の良化向上を得ることができるが、矯正すべき材料（鋼材）が断面矩形状、すなわち、リニアガイドにおける案内レール等のようにブロック状である場合には、押圧ローラ（ピンチローラ）間を通して行うには不向きで、適正に矯正することができないものとなり、多くは後者の手段が採用されているが、この後者の手段においては、単一状のプレス装置によって部分的に行うもので、実際の矯正作業に際しては作業者の感に頼っているのが現状で相当の熟練を要するとともに、作業性の悪化は避けられなかった。
そこで、本発明は、上記した従来の問題点に鑑み、断面矩形状の長尺の被矯正材料の真直度の矯正を適正に行うことができるとともに、その作業性の良化向上を図ることができる長尺物の矯正方法及びその矯正装置を提供することにある。
【０００４】
【課題を解決するための手段】
上記した課題を達成するために、請求項１記載の発明は、断面矩形状の長尺物からなる被矯正材料の真直度を矯正するための方法であって、被矯正材料の相対向する２面を押圧する矯正手段に対して被矯正部材を所定の長さずつ間欠的に順次送り込む工程と、この矯正手段において送り込まれた被矯正部材に対して相対向する２面方向から複数の押圧子により部分的に押圧して矯正する矯正工程と、前記矯正手段に対する被矯正部材の送り込み終了に伴って該矯正手段からの被矯正部材を所定の長さずつ間欠的に順次引出す工程とからなることを要旨とする。
【０００５】
この構成によれば、被矯正材料を間欠的に所定の長さずつ順次矯正手段に送り込み、この矯正手段において送り込まれた被矯正部材に対して相対向する２面方向から複数の押圧子により部分的に押圧して真直度を矯正し、その後、矯正を終えた被矯正部材を矯正手段所定の長さずつ間欠的に順次引出すことによって、長尺の被矯正材料における真直度の矯正を、一連の送り進行中において連続して行うことができる。
【０００６】
請求項２記載の発明は、請求項１記載の長尺物の矯正方法であって、被矯正部材を送り込む工程と該被矯正部材を引出す工程との間欠送り量を同一長さに設定するとともに、同期動作するように設定したことを要旨とする。
【０００７】
この構成によれば、請求項１記載の発明に加え、矯正手段に対する被矯正部材の送り込みと引出し動作を連繋的にして円滑になし得るものである。
【０００８】
請求項３記載の発明は、請求項１又は２記載の長尺物の矯正方法であって、矯正工程における複数の押圧子により被矯正部材を部分的に押圧するに際して、被矯正部材の送り込み側から引き出し側に至るにしたがって押圧力を暫時低減するようになしたことを要旨とする。
【０００９】
この構成によれば、被矯正部材に対して矯正のための押圧力を無理なく作用させて矯正することができ、効果的に矯正動作をなし得るものである。
【００１０】
請求項４記載の発明は、断面矩形状の長尺物からなる被矯正材料の真直度を矯正するための装置であって、被矯正材料の相対向する２面に対し矯正工程して矯正する矯正手段と、この矯正手段に対して被矯正部材を所定の長さずつ間欠的に順次送り込むための送り込み手段と、前記矯正手段に対する被矯正部材の送り込み終了に伴って該矯正手段からの被矯正部材を所定の長さずつ間欠的に順次引出すための引出し手段とを備えたことを要旨とする。
【００１１】
この構成によれば、請求項１記載の発明と同様に、被矯正材料を間欠的に所定の長さずつ順次矯正手段に送り込み、この矯正手段において送り込まれた被矯正部材に対して相対向する２面方向から複数の押圧子により部分的に押圧して真直度を矯正し、その後、矯正を終えた被矯正部材を矯正手段所定の長さずつ間欠的に順次引出すことによって、長尺の被矯正材料における真直度の矯正を、一連の送り進行中に連続して行うことができる。
【００１２】
請求項５記載の発明は、請求項４記載の長尺物の矯正装置であって、送り込み手段と引出し手段との間欠送り量を同一長さに設定し、該両者の間欠送り動作を同期するように設定したことを要旨とする。
【００１３】
この構成によれば、請求項２記載の発明と同様に、請求項４記載の発明に加え、矯正手段に対する被矯正部材の送り込みと引出し動作を連繋的にして円滑になし得るものである。
【００１４】
請求項６記載の発明は、請求項４又は５記載の長尺物の矯正装置であって、矯正手段の複数の押圧子を被矯正部材の送り方向に沿って所定の間隔で配設するとともに、該押圧子を固定側圧子とこの固定側圧子間に対向位置された可動側圧子とからなり、この可動側圧子による押圧力を前記被矯正部材の送り込み側から引き出し側に至るにしたがって暫時低減するように構成したことを要旨とする。
【００１５】
この構成によれば、請求項３記載の発明と同様に、被矯正部材に対して矯正のための押圧力を無理なく作用させて矯正することができ、効果的に矯正動作をなし得るものである。
【００１６】
【発明の実施の形態】
以下、本発明を具体化した実施の形態を図にしたがって詳述する。
まず、本実施の形態における矯正方法に使用される矯正装置について説明すると、本実施の形態における矯正装置は、大別すると、図１の（ａ）に示すように、プレス装置からなる矯正手段１と、該矯正手段１の後述する被矯正部材Ｗが送り込まれる側（図１の（ａ）及び図２において左側）に対向して配置された被矯正部材Ｗの送り込み手段２と、矯正手段１から被矯正部材Ｗを引出す側（図１の（ａ）及び図２において右側）に対向して配置された被矯正部材Ｗの引出し手段３とから構成されている。
【００１７】
なお、送り込み手段２、矯正手段１、引出し手段３は被矯正部材Ｗの進行方向（送り方向）に沿って同一直線上に直列状態で順に配置されるとともに、送り込み手段２の一方側面側には該送り込み手段２に供給する被矯正部材Ｗを載置するための供給側載置台４がその側面に沿って配置され、引出し手段３の他方側面には、該引出し手段３から取出した被矯正部材Ｗを載置するための取出し側載置台５がその側面に沿って配置されている。
【００１８】
また、被矯正部材Ｗは、例えば、リニアガイドにおける案内レールや、スライダ等の素材として使用されるもので、冷間引抜により加工された断面矩形状の長尺の鋼材で、かつ所望の機械加工が施されている。
【００１９】
前記矯正手段１は、図１の（ａ）及び図２、３に示すように、送り込まれる被矯正部材Ｗの相対向する２面（この場合は上下面）の矯正を行う第１の矯正手段１Ａと該被矯正部材Ｗの相対向する２面（この場合は左右面）の矯正を行う第２の矯正手段１Ｂとから構成されている。
【００２０】
第１の矯正手段１Ａは、図５及び図６に示すように、矩形状に形成された本体ベース６と、該本体ベース６上に立設されかつ矩形状に枠組みされた本体フレーム７とから構成され、本体ベース６の中心部の長手方向には、被矯正部材Ｗの送り進行部位が形成されるとともに、該部位の入口側（送り込み側）から出口側（引出し側）にかけて複数個のブロック状の固定側圧子８〜８が所定の間隔（図では等間隔）で同一直線上に装設されている。なお、送り進行部位の入口側の両側部には送り込まれる被矯正部材Ｗの両側方を規制して固定側圧子８側への送り込みをガイドする一対の曲板状のガイド板９が装設されている。
【００２１】
前記本体フレーム７における被矯正部材Ｗの送り進行部位（ほぼ入口側と出口側の部位）の上方に対向された部位の中央フレーム部７ａには複数（図では２個）の油圧シリンダ等からなる加圧（押圧）手段を構成する流体圧シリンダ１０、１０が垂下状に装設され、その下方に突出されたピストンロッド１０ａ、１０ａには加圧フレーム１１が前記複数個の固定側圧子８〜８上方に対向して被矯正部材Ｗの送り進行に沿う方向に傾動可能にブラケット１１ａ、１１ａを介して装設されている。
【００２２】
そして、加圧フレーム１１の下面には前記複数個の固定側圧子８〜８間に対向位置するように複数個のブロック状の可動側圧子１２〜１２が所定の間隔（図では等間隔）で同一直線上に装設されている。
【００２３】
なお、前記各固定側圧子８〜８の上面は同一平面上に位置するように構成されるとともに、各可動側圧子１２〜１２の下面も同一平面上に位置するように構成されるものである。
【００２４】
また、両流体圧シリンダ１０、１０において、入口側に位置した流体圧シリンダ１０の加圧（押圧）力を出口側に位置した流体圧シリンダ１０のより加圧（押圧）力より大きく設定して被矯正部材Ｗに対し入口側で大きな歪みを付与し、出口側に至るにしたがって暫時その加圧（押圧）力を暫時小さく（弱く）して小さな歪みを付与することにより被矯正部材Ｗの曲がりをとる（矯正する）ように構成されている。
【００２５】
前記第２の矯正手段１Ｂは、図１の（ａ）及び図３に示すように、前記第１の矯正手段１Ａの後工程側に装設されて被矯正部材Ｗの左右面を矯正するもので、基本的には該第１の矯正手段１Ａを横向き水平状態にして構成されており、第１の矯正手段１Ａの被矯正部材Ｗの送り進行部位と同一直線上に位置された被矯正部材Ｗの送り進行ガイド面１３を挟んで前記各固定側圧子８〜８と各可動側圧子１２〜１２が対向位置されている。この送り進行ガイド面１３は第１の矯正手段１Ａにおける各固定側圧子８〜８の上面と同一平面上に位置合わせすることが望ましい。なお、第２の矯正手段１Ｂは、基本的には第１の矯正手段１Ａと同様であり、同一部材については図中同一の符号を付してその説明を省略する。
【００２６】
また、第１の矯正手段１Ａの被矯正部材Ｗの送り進行部位と第２の矯正手段１Ｂの送り進行ガイド面１３との間には、該第１の矯正手段１Ａから第２の矯正手段１Ｂの送り進行ガイド面１３の入口側に送り込まれる被矯正部材Ｗの両側方を規制してその被矯正部材Ｗの送り込みをガイドする一対の曲板状のガイド板１４が装設されている。
【００２７】
前記被矯正部材Ｗの送り込み手段２は、第１の矯正手段１Ａの入口側に配置されており、長尺の被矯正部材Ｗをその全長にわたって収納し得る長方形のます形状に形成された本体フレーム１６と、該本体フレーム１６にその長手方向に沿って往復移動可能に装設されたキャリエッジ１７とから構成されている。
【００２８】
このキャリエッジ１７は相対向する支持片１８、１８と該支持片１８、１８の後端側（図４において左端側）を連結する連結片１９から平面逆コ字状に形成されていて、その支持片１８、１８の開放された先端側（図４において右端側）には、それぞれ内方に向かい合う後述する間欠運動子２０の抜脱阻止部１８ａ、１８ａが形成されており、該支持片１８、１８及び連結片１９の一部が本体フレーム１６の両側壁に対してその長手方向に沿う方向、すなわち、被矯正部材Ｗの送り進行方向に往復移動するように組込まれ、この支持片１８、１８の対向する内面には間欠運動子２０が該キャリエッジ１７の往復移動方向と同方向に移動可能に組込まれている。
【００２９】
前記間欠運動子２０のほぼ中心部には支持片１８、１８の開放先端部側から後端側にかけて該開放先端部側を広くしかつ後端側を狭くした角孔状の摺動孔２１が貫設されており、この摺動孔２１の横方向に相対向する面は平面からみて開放先端部側を広くしかつ後端側を狭くする斜状の摺動面２１ａ、２１ａとなし、後述する記被矯正部材Ｗを把持するためのグリッパー２２、２２が装設されるものである。
【００３０】
グリッパー２２、２２は、外側面を斜状部２２ａ、２２ａとしかつ内側面をストレート部２２ｂ、２２ｂとなした一対のブロック状に構成されていて、前記間欠運動子２０に対し、その斜状部２２ａ、２２ａを摺動孔２１内の相対向する斜状の摺動面２１ａ、２１ａに沿って摺動可能に接するように組込まれている。したがって、グリッパー２２、２２は、間欠運動子２０の摺動面２１ａ、２１ａに対する斜状部２２ａ、２２ａの移動に伴ってその内面のストレート部２２ｂ、２２ｂの間隔縮小したり拡開したりすることにより被矯正部材Ｗの一方端側（図１において左端）を把持及び開放するように構成されている。なお、グリッパー２２、２２の把持及び開放は、例えば、電気的に作動される動作制御手段により行うように構成されている。
【００３１】
そして、前記キャリエッジ１７において、連結片１９と間欠運動子２０との間には、圧縮ばね等からなる複数の弾力付与手段２３が弾装されていて、常にはキャリエッジ１７に対して間欠運動子２０が被矯正部材Ｗの送り進行方向（図４において右方向）に移動するように付勢している。
【００３２】
また、前記キャリエッジ１７の一部は、図１の（ｂ）に示すように、本体フレーム１６の長手方向の両端部に装設された駆動側のスプロケットホイール２４及び従動側のスプロケットホイール２５間に掛装されたチェーン２６に連繋部２７を介して連繋されており、この駆動側のスプロケットホイール２４に連結された駆動モータ等の駆動手段２８の回転駆動により該チェーン２６を介して所定の速度で移動されるように構成されている。
【００３３】
しかして、キャリエッジ１７は、図１の（ａ）（ｂ）に示すように、本体フレーム１６対し、その長手方向の一方端部（図において左端部）に位置された状態を移動開始位置（元位置）として被矯正部材Ｗを受入れ、その間欠運動子２０に組込まれたグリッパー２２によって供給側載置台４から本体フレーム１６内に供給された被矯正部材Ｗの一方端部を把持するものである。
【００３４】
なお、送り込み手段２の本体フレーム１６には、前記上下面の第１の矯正手段１Ａにおける固定側圧子８〜８の上面と同一面上に位置されて被矯正部材Ｗを受入れ支持する支持部材（図示しない）が形成されている。
【００３５】
そして、グリッパー２２は、通常時には間欠運動子２０に対して拡開状態にあり、送り込み手段２の本体フレーム１６内の支持部材（図示しない）に被矯正部材Ｗが受入れ支持されたとき、この状態を例えば、第１のリミットスイッチ２９により検知するとともに、該第１のリミットスイッチ２９の検知信号に基づき駆動手段２８を駆動してキャリエッジ１７を前進移動することによって被矯正部材Ｗの端部をそのストレート部２２ｂ、２２ｂで把持状態とし、該第１のリミットスイッチ２９の検知信号に基づき電気的に作動される動作制御手段（図示しない）により開放状態から把持状態に作動されるように構成されるものである。
【００３６】
また、前記キャリエッジ１７の前進移動時に際して、被矯正部材Ｗ側の移動が阻止された状態になると、該被矯正部材Ｗを把持したグリッパー２２及び間欠運動子２０がともに移動停止状態となってキャリエッジ１７のみ前進移動するため、該キャリエッジ１７と間欠運動子２０との間に弾装された弾力付与手段２３の弾力が蓄積（圧縮）されるとともに、キャリエッジ１７の先端側において間欠運動子２０とキャリエッジ１７における支持片１８の抜脱阻止部１８ａ、１８ａとの間に該弾力付与手段２３の圧縮された分に相当する間隔が形成される。
【００３７】
そして、被矯正部材Ｗ側の移動阻止状態を解除すると、弾力が蓄積された弾力付与手段２３の復帰弾力により該被矯正部材Ｗを把持したグリッパー２２及び間欠運動子２０が一体となってキャリエッジ１７に対して前進移動される。
【００３８】
上記のようにして間欠運動子２０が該被矯正部材Ｗを把持したグリッパー２２とともに前進移動、すなわち、間欠運動子２０がキャリエッジ１７の前進移動とともに間欠的に前進移動される。したがって、被矯正部材Ｗが所定の長さずつ間欠的に前進移動されるものである。
【００３９】
前記被矯正部材Ｗの引出し手段３は、送り込み手段２と同様に構成されて、該送り込み手段２の各部材の方向を１８０度反転させた状態で前記第２の矯正手段１Ｂの出口側に対して配置されている。なお、引出し手段３は前記したように送り込み手段２と同様に構成されており、各構成部材についいて図中同符号を付してその説明を省略する。
【００４０】
この引出し手段３のキャリエッジ１７は、図１の（ａ）（ｂ）に示すように、本体フレーム１６対し、その長手方向の一方端部（図において左端部）に位置された状態を移動開始位置（元位置）として第２の矯正手段１Ｂからの被矯正部材Ｗの他方端部（先端部）を間欠運動子２０に組込まれたグリッパー２２によって把持し、その移動終端位置において、本体フレーム１６内に位置された被矯正部材Ｗを取出し側載置台５に搬出可能とするものである。
【００４１】
そして、送り出し手段２の本体フレーム１６に形成された支持部材（図示しない）が、送り進行ガイド面１３と同一面上に位置されるように設定されている。
【００４２】
本実施の形態における矯正装置は上述したように構成されており、その作用とともに、本実施の形態における一連の矯正方法について説明する。
【００４３】
さて、図１の（ａ）に示すように、送り出し手段３におけるキャリエッジ１７が本体フレーム１６の一方端部（図において左端部）に位置された移動開始位置（元位置）状態において、供給側載置台４から適宜手段により供給された被矯正部材Ｗを受入れ、その一方端部を間欠運動子２０に組込まれたグリッパー２２によって把持する。この場合、グリッパー２２は第１のリミットスイッチ２９の検知信号に基づき電気的に作動される動作制御手段により開放状態から把持状態に作動される。
【００４４】
これと同期して、キャリエッジ１７による被矯正部材Ｗの受入れ動作（第１のリミットスイッチ２９の検知信号に基づき）に伴って、駆動手段２８が駆動されるので、該キャリエッジ１７がチェーン２６を介して所定（一定）の速度で前進移動される。このキャリエッジ１７とともに、間欠運動子２０及び被矯正部材Ｗを把持したグリッパー２２が一体となって第１の矯正手段１Ａ側に向けて送り込まれる。
【００４５】
そこで、被矯正部材Ｗの他方端部（先端部）が前記第１の矯正手段１Ａにおけるプレス動作中、すなわち、下動状態の可動側圧子１２に当接されると、キャリエッジ１７の前進移動時に際して被矯正部材Ｗを把持したグリッパー２２及び間欠運動子２０がともに移動停止状態となってキャリエッジ１７のみが前進移動するため、該キャリエッジ１７と間欠運動子２０との間に弾装された弾力付与手段２３の弾力が蓄積（圧縮）されるとともに、キャリエッジ１７の先端側と間欠運動子２０との間に該弾力付与手段２３の圧縮された分に相当する間隔が形成される。
【００４６】
そして、矯正手段１Ａにおける可動側圧子１２の上動により被矯正部材Ｗの当接を解除すると、弾力が蓄積された弾力付与手段２３の復帰弾力によって被矯正部材Ｗを把持したグリッパー２２及び間欠運動子２０が一体となってキャリエッジ１７に対して弾力が蓄積された分に相当する長さ前進移動される。
【００４７】
この状態において、被矯正部材Ｗは第１の矯正手段１Ａにおける固定側圧子８上に送り出し（供給）され、該第１の矯正手段１Ａによる上下面の矯正、すなわち、流体圧シリンダ１０、１０により各可動側圧子１２が下動され、その押圧力により各固定側圧子８上の被矯正部材Ｗの上下方向の曲がり等の矯正工程が開始される。
【００４８】
この矯正工程における各可動側圧子１２による押圧動作中は被矯正部材Ｗが位置固定された状態となり、キャリエッジ１７が所定（一定）の速度で前進移動されているため、前述のように、キャリエッジ１７のみが前進移動されて弾力付与手段２３の弾力を再度蓄積（圧縮）するとともに、間欠運動子２０との間に該弾力付与手段２３の圧縮された分に相当する間隔が形成される。
【００４９】
そして、各可動側圧子１２の上動により被矯正部材Ｗの位置固定状態が解除されると、前述のようにして弾力付与手段２３の復帰弾力によって被矯正部材Ｗを把持したグリッパー２２及び間欠運動子２０が一体となってキャリエッジ１７に対して弾力が蓄積された分に相当する長さ前進移動され、再び、第１の矯正手段１Ａにおいて流体圧シリンダ１０、１０により各可動側圧子１２が下動され、その押圧力により各固定側圧子８上の被矯正部材Ｗの上下方向の曲がり等の矯正動作が行なわれる。
【００５０】
上述のようにして、送り込み手段２により被矯正部材Ｗを第１の矯正手段１Ａ内にその矯正動作に連繋して所定の長さずつ間欠的に送り込み（送り込み工程）、該第１の矯正手段１Ａにおいて送り込まれた被矯正部材Ｗの上下方向の曲がり等の矯正（矯正工程）を一連の送り状態の下で行うものである。
【００５１】
ついで、該第１の矯正手段１Ａにより上下方向の曲がり等が矯正された被矯正部材Ｗは、前述のように送り込み手段２により前述のようにして第２の矯正手段１Ｂに順次間欠的に送り込まれ、該第２の矯正手段１Ｂにおいて、その左右横方向に位置された各固定側圧子８と流体圧シリンダ１０、１０により横動される各可動側圧子１２の押圧力により、被矯正部材Ｗの左右横方向の曲がり等の矯正動作が行なわれる。この場合、第１の矯正手段１Ａのよる矯正動作と第２の矯正手段１Ｂによる矯正動作とが同時に行なわれるように設定されている。
【００５２】
そこで、送り込み手段２におけるキャリエッジ１７が本体フレーム１６の他方端部（図において右端部）の移動終端位置の近傍に位置された状態になると、その被矯正部材Ｗの他方端部（先端部）は第１の矯正手段１Ａのよる矯正動作と第２の矯正手段１Ｂによる矯正動作とが終了されて引出し手段３の一方端部に臨んだ状態に位置される。
【００５３】
この状態において、引出し手段３の一方端部（図において左端部）の移動開始位置にあるキャリエッジ１７において、被矯正部材Ｗの他方端部（先端部）をその間欠運動子２０に組込まれたグリッパー２２によって把持する。このグリッパー２２は、送り込み手段２におけるキャリエッジ１７の移動終端位置の近傍に位置された状態を第２のリミットスイッチ３０により検知するともに、該第２のリミットスイッチ３０の検知信号に基づき電気的に作動される動作制御手段により把持状態となる。
【００５４】
そして、送り込み手段２と引出し手段３とで被矯正部材Ｗを把持した状態で送り込みが動作が該送り込み手段２におけるキャリエッジ１７が本体フレーム１６の移動終端位置に位置された状態になるまで行なわれて、その移動終端に位置されると、その位置を検知する第３のリミットスイッチ３１の検知信号に基づき電気的に作動される動作制御手段により送り込み手段２側のグリッパー２２が開放状態となり、被矯正部材Ｗの一方端部の把持状態を開放する。
【００５５】
その後は、引出し手段３におけるキャリエッジ１７を第１の矯正手段１Ａ及び第２の矯正手段１Ｂの矯正動作に連繋して前述の送り込み手段３と同様に作動させて被矯正部材Ｗを所定の長さずつ間欠的に引出し（引出し工程）、該第１の矯正手段１Ａにおける被矯正部材Ｗの上下方向の曲がり等の矯正（矯正工程）と、該第２の矯正手段１Ｂにおける被矯正部材Ｗの左右横方向の曲がり等の矯正（矯正工程）との同時矯正、さらには、被矯正部材Ｗの上下方向の曲がり等の矯正が終了した被矯正部材Ｗを第２の矯正手段１Ｂにおいて左右横方向の曲がり等の単独矯正を前記一連の送り状態の下で行うものである。
【００５６】
そして、被矯正部材Ｗのすべての矯正が終了して引出し手段３におけるキャリエッジ１７がその他方端部（図において右端部）の移動終端に位置されると、その位置を検知する第４のリミットスイッチ３２の検知信号に基づき電気的に作動される動作制御手段により引出し手段３側のグリッパー２２が開放状態となり、被矯正部材Ｗの他方端部の把持状態を開放し、この本体フレーム１６内に位置された被矯正部材Ｗは、適宜の取出し手段により取出されて取出し側載置台５に搬出される。
【００５７】
ここに、断面矩形状の長尺の被矯正部材Ｗに対するその上下左右面の曲がりの矯正、すなわち、真直度の矯正を行なうものであり、第１の矯正手段１Ａ及び第２の矯正手段１Ｂの矯正動作に際し、両流体圧シリンダ１０、１０において、入口側に位置した流体圧シリンダ１０の加圧（押圧）力を出口側に位置した流体圧シリンダ１０のより加圧（押圧）力より大きく設定して被矯正部材Ｗに対し入口側で大きな歪みを付与し、出口側に至るにしたがって暫時その加圧（押圧）力を暫時小さく（弱く）して小さな歪みを付与するように設定されているため、被矯正部材Ｗに対して矯正のための押圧力を無理なく作用させて矯正することができ、効果的な矯正動作を得ることができる。
【００５８】
なお、送り込み手段２及び引出し手段３において、その移動終端に位置されたキャリエッジ１７は、例えば、駆動手段２８を逆に駆動して、それぞれ元の位置、すなわち、移動開始位置に復帰されるものである。
【００５９】
上記した実施の形態において、矯正手段１を被矯正部材Ｗの相対向する上下面矯正を行う第１の矯正手段１Ａと相対向する左右面の矯正を行う第２の矯正手段１Ｂとから構成したが、いずれか一方の矯正手段を採用した場合でもよく、矯正手段１における押圧力（押圧力）は被矯正部材Ｗの断面矩形の寸法によって任意に設定し、同設定をコンピュータによる管理にて行なうことができる。
【００６０】
【発明の効果】
請求項１の発明にあっては、被矯正材料を間欠的に所定の長さずつ順次矯正手段に送り込み、この矯正手段において送り込まれた被矯正部材に対して相対向する２面方向から複数の押圧子により部分的に押圧して真直度を矯正し、その後、矯正を終えた被矯正部材を矯正手段所定の長さずつ間欠的に順次引出すことによって、長尺の被矯正材料における真直度の矯正を、一連の送り進行中において連続して行うことができる。
【００６１】
請求項２の発明にあっては、請求項１記載の発明の効果に加え、矯正手段に対する被矯正部材の送り込みと引出し動作を連繋的にして円滑になし得る。
【００６２】
請求項３の発明にあっては、被矯正部材に対して矯正のための押圧力を無理なく作用させて矯正することができ、効果的に矯正動作をなし得る。
【００６３】
請求項４の発明にあっては、請求項１記載の発明の効果と同様に、断面矩形状の長尺の被矯正材料における真直度の矯正を、一連の送り進行中に連続して行うことができる。
【００６４】
請求項５の発明にあっては、請求項２記載の発明の効果と同様に、請求項４記載の発明に加え、矯正手段に対する被矯正部材の送り込みと引出し動作を連繋的にして円滑になし得る。
【００６５】
請求項６の発明にあっては、請求項３記載の発明の効果と同様に、被矯正部材に対して矯正のための押圧力を無理なく作用させて矯正することができ、効果的に矯正動作をなし得る。
【図面の簡単な説明】
【図１】（ａ）は，本実施の形態における矯正装置の概要を示す説明図であり、（ｂ）は、矯正装置における被矯正部材の送り受け渡し状態を示す説明図である。
【図２】矯正装置における送り出し手段及び上下方向の矯正手段を示す一部断面の拡大平面図である。
【図３】矯正装置における左右方向の矯正手段及び引出し手段を示す一部断面の拡大平面図である。
【図４】矯正装置における送り出し手段及び引出し手段の要部を示す一部断面の拡大平面図である。
【図５】上下方向の矯正手段を示す一部断面の拡大平面図である。
【図６】同じく、上下方向の矯正手段を示す拡大側面図である。
【図７】同じく、上下方向（左右方向）の矯正手段の動作説明図である。
【符号の説明】
１　矯正手段
１Ａ　第１の矯正手段
１Ｂ　第２の矯正手段
２　送り込み手段
３　引出し手段
８　固定側圧子
１０　流体圧シリンダ
１２　可動側圧子
１７　キャリエッジ
Ｗ　被矯正部材[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a method and an apparatus for correcting the straightness of a long material having a rectangular section in cross section, for example, straightness of a guide rail or the like in a linear guide (takes bending in the vertical and horizontal directions). It is.
[0002]
[Prior art]
In general, in the case of a guide rail or the like in this type of linear guide, a long steel material processed by cold drawing is used, and predetermined machining is performed, and the upper and lower surfaces in a rectangular cross section are used. That is, it is required to have a so-called straightness of four sides without bending in the direction and the left and right direction.
Then, as a means for taking a bend in the vertical and horizontal directions (correcting the straightness of the four sides) of the long steel material, the steel material is passed between press rollers (pinch rollers) arranged alternately in the form of a conveyor. Means for straightening the upper and lower surfaces facing each other continuously, and means for partially correcting the steel material by supporting the steel material with two cradles and pressing the steel material from above between the cradles. There is.
[0003]
[Problems to be solved by the invention]
However, in the above-mentioned conventional means, in the former means, the steel material can be continuously corrected by passing between the pressing rollers (pinch rollers), so that improvement in workability can be improved. If the material (steel) to be straightened has a rectangular cross section, that is, a block shape such as a guide rail in a linear guide, etc., it is not suitable to perform between pressing rollers (pinch rollers), and it should be properly corrected. In many cases, the latter means is adopted.However, in the latter means, partial pressing is performed by a single press device, and actual correction work depends on the feeling of the worker. However, at the present time, considerable skill was required, and deterioration of workability was inevitable.
In view of the above-mentioned conventional problems, the present invention can appropriately correct the straightness of a long material to be corrected having a rectangular cross section, and can improve the workability of the material. An object of the present invention is to provide a method for correcting a long object and a device for correcting the same.
[0004]
[Means for Solving the Problems]
In order to achieve the above object, an invention according to claim 1 is a method for correcting the straightness of a material to be corrected, which is formed of a long object having a rectangular cross section. A step of intermittently feeding the member to be corrected to the correcting means for pressing the surface by a predetermined length intermittently, and a plurality of pressing elements from two face directions opposed to the member to be corrected sent in the correcting means. And a step of intermittently sequentially withdrawing the member to be corrected from the correcting unit by a predetermined length with completion of the feeding of the member to be corrected to the correcting unit. Is the gist.
[0005]
According to this configuration, the material to be corrected is intermittently sent to the correcting means by a predetermined length intermittently, and a plurality of pressing elements are used by a plurality of pressing elements from two opposing directions with respect to the member to be corrected sent in the correcting means. The straightness is corrected by pressurizing the straightness, and then the straightened member, which has been straightened, is intermittently pulled out by a predetermined length of the straightening means, thereby straightening the straightness of the long material to be straightened. Can be continuously performed while the feeding is in progress.
[0006]
According to a second aspect of the present invention, there is provided the method for correcting a long object according to the first aspect, wherein the step of feeding the member to be corrected and the step of pulling out the member to be corrected are set to have the same intermittent feed amount. The gist of the present invention is that synchronous operation is set.
[0007]
According to this configuration, in addition to the first aspect of the present invention, the feeding and pulling-out operations of the member to be corrected with respect to the correcting means can be performed smoothly.
[0008]
According to a third aspect of the present invention, there is provided the method for correcting a long object according to the first or second aspect, wherein when the member to be corrected is partially pressed by the plurality of pressing elements in the correcting step, the feeding side of the member to be corrected is provided. The point is that the pressing force is temporarily reduced from the to the drawer side.
[0009]
According to this configuration, the member to be corrected can be pressed by the pressing force for correction without difficulty, and the member can be corrected, and the correcting operation can be performed effectively.
[0010]
According to a fourth aspect of the present invention, there is provided an apparatus for correcting the straightness of a material to be corrected, which is formed of a long object having a rectangular cross section, and performs correction by performing a correction process on two opposing surfaces of the material to be corrected. Correcting means, feeding means for intermittently feeding the member to be corrected intermittently by a predetermined length to the correcting means, and correction from the correcting means upon completion of the feeding of the member to the correcting means. A drawer for intermittently pulling out the member by a predetermined length sequentially is provided.
[0011]
According to this configuration, similarly to the first aspect of the invention, the material to be corrected is intermittently fed into the correcting means by a predetermined length in an intermittent manner, and faces the member to be corrected sent in the correcting means. The straightness is corrected by partially pressing with a plurality of pressing elements from two directions, and then the corrected member, which has been corrected, is intermittently pulled out by a predetermined length of the correction means, so that the long member is removed. Straightening of the straightening material can be performed continuously during a series of feeds.
[0012]
According to a fifth aspect of the present invention, there is provided the device for correcting a long object according to the fourth aspect, wherein the intermittent feeding amounts of the feeding means and the drawing means are set to the same length, and the two intermittent feeding operations are synchronized. The gist is that the settings are made as follows.
[0013]
According to this configuration, similarly to the invention of the second aspect, in addition to the invention of the fourth aspect, the feeding and pulling-out operation of the member to be corrected with respect to the correction means can be smoothly performed.
[0014]
According to a sixth aspect of the present invention, there is provided the device for correcting a long object according to the fourth or fifth aspect, wherein the plurality of pressing elements of the correcting means are arranged at predetermined intervals along the feeding direction of the member to be corrected. The presser is composed of a fixed-side indenter and a movable-side indenter positioned between the fixed-side indenter, and the pressing force of the movable-side indenter is temporarily reduced from the feeding side to the drawing side of the member to be corrected. The gist is that it is configured to perform
[0015]
According to this configuration, similarly to the third aspect of the present invention, the member to be corrected can be corrected by applying a pressing force for correction to the member to be corrected without difficulty, and the correcting operation can be performed effectively. is there.
[0016]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
First, the straightening device used in the straightening method according to the present embodiment will be described. The straightening device according to the present embodiment can be roughly classified as shown in FIG. A feeding means 2 for the member W to be corrected, which is disposed opposite to a side (left side in FIG. 1A and FIG. 2) into which a member W to be described later of the correcting means 1 is fed; And a pull-out means 3 for the member to be corrected W, which is disposed to face the side from which the member to be corrected W is drawn (right side in FIGS. 1A and 2).
[0017]
The feeding means 2, the correcting means 1, and the drawing means 3 are sequentially arranged in a straight line on the same straight line along the traveling direction (feeding direction) of the member W to be corrected. A supply-side mounting table 4 for mounting the correction target member W to be supplied to the feeding means 2 is arranged along the side surface thereof, and the correction member removed from the extraction means 3 is provided on the other side surface of the extraction means 3. An unloading side mounting table 5 for mounting W is arranged along the side surface.
[0018]
The member W to be corrected is used, for example, as a material for a guide rail or a slider in a linear guide, and is a long steel material having a rectangular cross section processed by cold drawing, and has a desired mechanical processing. Is given.
[0019]
As shown in FIG. 1A and FIGS. 2 and 3, the correction means 1 is a first correction means for correcting two opposing surfaces (upper and lower surfaces in this case) of the member to be corrected W to be fed. 1A and a second correcting means 1B for correcting two opposing surfaces (in this case, left and right surfaces) of the member W to be corrected.
[0020]
As shown in FIGS. 5 and 6, the first straightening means 1A includes a main body base 6 formed in a rectangular shape, and a main body frame 7 erected on the main body base 6 and framed in a rectangular shape. In the longitudinal direction of the central portion of the main body base 6, a portion where the member to be corrected W is advanced is formed, and a plurality of blocks are formed from the inlet side (feed side) to the outlet side (drawer side) of the portion. The fixed indenters 8 to 8 are mounted on the same straight line at predetermined intervals (equal intervals in the figure). A pair of curved guide plates 9 are provided on both sides on the entrance side of the feed-advancing portion to regulate both sides of the member W to be fed and guide the member W to be sent to the fixed-side indenter 8 side. ing.
[0021]
The central frame portion 7a of the main body frame 7, which is located above the feed progression portion (substantially the entrance side and the exit side) of the correction target member W, includes a plurality of (two in the figure) hydraulic cylinders and the like. Fluid pressure cylinders 10 and 10 constituting pressure (pressing) means are provided in a hanging manner, and a pressure frame 11 is provided on piston rods 10a and 10a projecting below the pressure cylinders 10 and 10a. 8 is provided via brackets 11a, 11a so as to be tiltable in a direction along the feeding progress of the correction target member W facing upward.
[0022]
On the lower surface of the pressing frame 11, a plurality of block-shaped movable indenters 12 to 12 are arranged at predetermined intervals (equal intervals in the figure) so as to be opposed to the plurality of fixed indenters 8 to 8. They are installed on the same straight line.
[0023]
The upper surfaces of the fixed side indenters 8 to 8 are configured to be located on the same plane, and the lower surfaces of the movable side indenters 12 to 12 are also configured to be located on the same plane. .
[0024]
Further, in both the hydraulic cylinders 10, 10, the pressing (pressing) force of the hydraulic cylinder 10 located on the inlet side is set to be larger than the pressing (pressing) force of the hydraulic cylinder 10 located on the outlet side. Bending of the member W to be corrected by applying a large strain to the member W to be corrected on the inlet side, and temporarily reducing (weakening) the pressing (pressing) force for a while toward the outlet side to apply a small distortion. (Correction).
[0025]
As shown in FIG. 1A and FIG. 3, the second straightening means 1B is provided on the post-process side of the first straightening means 1A to straighten the left and right surfaces of the member W to be straightened. Basically, the first correction means 1A is configured to be in a horizontal horizontal state, and the correction target member positioned on the same straight line as the feeding progress portion of the correction target member W of the first correction means 1A. The fixed-side indenters 8 to 8 and the movable-side indenters 12 to 12 are opposed to each other with the W advance guide surface 13 interposed therebetween. It is desirable that the feed progress guide surface 13 is positioned on the same plane as the upper surfaces of the fixed side indenters 8 to 8 in the first straightening means 1A. The second correcting means 1B is basically the same as the first correcting means 1A, and the same members are denoted by the same reference numerals in the drawings and description thereof will be omitted.
[0026]
In addition, between the feed progression portion of the correction target member W of the first correction means 1A and the feed progress guide surface 13 of the second correction means 1B, the first correction means 1A to the second correction means 1B A pair of curved guide plates 14 are provided to regulate the sides of the correction target member W fed into the entrance side of the feeding progress guide surface 13 to guide the correction target member W to be fed.
[0027]
The feeding means 2 for the member to be corrected W is arranged on the entrance side of the first correcting means 1A, and has a rectangular main body frame capable of storing a long member to be corrected W over its entire length. And a carry edge 17 mounted on the main body frame 16 so as to be able to reciprocate along its longitudinal direction.
[0028]
The carry edge 17 is formed in a plane inverted U-shape from opposing support pieces 18, 18 and a connecting piece 19 connecting the rear end sides (the left end side in FIG. 4) of the support pieces 18, 18. On the open front end side (right end side in FIG. 4) of the support pieces 18, 18 are formed inwardly-facing intermittent movement elements 20 withdrawal prevention portions 18 a, 18 a to be described later. , 18 and a part of the connecting piece 19 are assembled so as to reciprocate in the direction along the longitudinal direction of the both side walls of the main body frame 16, that is, in the direction of advance of the member W to be corrected. An intermittent motion element 20 is incorporated in the opposing inner surfaces of 18 so as to be movable in the same direction as the reciprocating movement direction of the carry edge 17.
[0029]
At a substantially central portion of the intermittent motion element 20, a rectangular hole-shaped sliding hole 21 having a wide open front end side and a narrow rear end side from the open front end side to the rear end side of the support pieces 18, 18 is provided. The surfaces facing each other in the lateral direction of the sliding hole 21 are oblique sliding surfaces 21a, 21a that widen the open front end side and narrow the rear end side when viewed from a plane. The grippers 22 for holding the member W to be corrected are provided.
[0030]
The grippers 22 and 22 are formed in a pair of blocks having outer surfaces formed as inclined portions 22a and 22a and inner surfaces formed as straight portions 22b and 22b. 22a, 22a are assembled so as to be slidably contacted along opposing oblique sliding surfaces 21a, 21a in the sliding hole 21. Accordingly, the gaps between the straight portions 22b, 22b on the inner surfaces of the grippers 22, 22 are reduced or expanded with the movement of the inclined portions 22a, 22a with respect to the sliding surfaces 21a, 21a of the intermittent motion element 20. Thereby, one end side (the left end in FIG. 1) of the correction target member W is configured to be gripped and opened. The grippers 22 are gripped and released by, for example, electrically operated operation control means.
[0031]
In the carry edge 17, a plurality of elasticity applying means 23 made of a compression spring or the like is elastically mounted between the connecting piece 19 and the intermittent motion element 20. The child 20 is urged to move in the direction in which the correction target member W is advanced (rightward in FIG. 4).
[0032]
Further, as shown in FIG. 1B, a part of the carry edge 17 is formed between a drive side sprocket wheel 24 and a driven side sprocket wheel 25 provided at both longitudinal ends of the main body frame 16. And a predetermined speed through the chain 26 by the rotational drive of a drive means 28 such as a drive motor connected to the sprocket wheel 24 on the drive side. It is configured to be moved by.
[0033]
As shown in FIGS. 1 (a) and 1 (b), the carry edge 17 moves from the state where the carry edge 17 is positioned at one end (the left end in the figure) in the longitudinal direction of the main body frame 16 to the movement start position ( As the original position), the correction target member W is received, and one end of the correction target member W supplied into the main body frame 16 from the supply side mounting table 4 by the gripper 22 incorporated in the intermittent motion element 20 is gripped. is there.
[0034]
In addition, the main body frame 16 of the feeding means 2 has a supporting member which is positioned on the same plane as the upper surfaces of the fixed side indenters 8 to 8 in the first correcting means 1A on the upper and lower surfaces and receives and supports the member W to be corrected. (Not shown).
[0035]
The gripper 22 is normally in the expanded state with respect to the intermittent motion element 20. When the correction target member W is received and supported by a support member (not shown) in the main body frame 16 of the feeding means 2, the gripper 22 is in this state. Is detected by the first limit switch 29, and the drive unit 28 is driven based on the detection signal of the first limit switch 29 to move the carry edge 17 to move the end of the member W to be corrected. The straight portions 22b, 22b are held in a gripping state, and are operated from an open state to a gripping state by operation control means (not shown) electrically operated based on a detection signal of the first limit switch 29. Things.
[0036]
In addition, when the carry edge 17 is moved forward, when the movement of the correction target member W side is prevented, the gripper 22 and the intermittent motion element 20 holding the correction target member W are both stopped. Since only the carry edge 17 moves forward, the resilience of the elasticity applying means 23 mounted between the carry edge 17 and the intermittent motion element 20 is accumulated (compressed), and the intermittent motion at the tip side of the carry edge 17 is performed. An interval corresponding to the compression of the elasticity applying means 23 is formed between the child 20 and the removal preventing portions 18a, 18a of the support piece 18 in the carry edge 17.
[0037]
Then, when the movement inhibition state on the correction target member W side is released, the gripper 22 and the intermittent motion element 20 holding the correction target member W are integrally formed by the return elasticity of the elasticity applying means 23 in which the elasticity is accumulated. 17 is moved forward.
[0038]
As described above, the intermittent motion element 20 moves forward together with the gripper 22 gripping the correction target member W, that is, the intermittent motion element 20 moves intermittently with the advance movement of the carry edge 17. Therefore, the correction target member W is intermittently moved forward by a predetermined length.
[0039]
The withdrawing means 3 of the member to be corrected W is configured in the same manner as the feeding means 2, and the direction of each member of the feeding means 2 is reversed by 180 degrees with respect to the outlet side of the second correcting means 1B. Is arranged. The drawer 3 has the same configuration as the feeder 2 as described above, and the same reference numerals in the drawings denote the respective components, and a description thereof will be omitted.
[0040]
As shown in FIGS. 1A and 1B, the carry edge 17 of the pull-out means 3 starts moving in a state where the carry edge 17 is positioned at one end (left end in the figure) of the main body frame 16 in the longitudinal direction. As the position (original position), the other end (tip) of the correction target member W from the second correction means 1B is gripped by the gripper 22 incorporated in the intermittent motion element 20, and at the movement end position, the main body frame 16 is moved. The member W to be corrected, which is located in the inside, can be carried out to the take-out side mounting table 5.
[0041]
A support member (not shown) formed on the main body frame 16 of the feeding means 2 is set so as to be located on the same plane as the feed progress guide surface 13.
[0042]
The correction device according to the present embodiment is configured as described above, and a series of correction methods according to the present embodiment will be described together with the operation thereof.
[0043]
Now, as shown in FIG. 1A, in the movement start position (original position) where the carry edge 17 of the feeding means 3 is located at one end (the left end in the figure) of the main body frame 16, the supply side The correction target member W supplied from the mounting table 4 by appropriate means is received, and one end thereof is gripped by the gripper 22 incorporated in the intermittent motion element 20. In this case, the gripper 22 is operated from the open state to the gripping state by operation control means electrically operated based on the detection signal of the first limit switch 29.
[0044]
In synchronization with this, the driving means 28 is driven in accordance with the receiving operation of the correction target member W by the carry edge 17 (based on the detection signal of the first limit switch 29), so that the carry edge 17 is Is moved forward at a predetermined (constant) speed via. Together with the carry edge 17, the intermittent motion element 20 and the gripper 22 gripping the correction target member W are sent together toward the first correction means 1A.
[0045]
Therefore, when the other end (tip) of the member to be corrected W is in contact with the movable indenter 12 in the downward moving state during the pressing operation of the first correcting means 1A, the carry edge 17 moves forward. At this time, the gripper 22 and the intermittent motion element 20 that have gripped the correction target member W are both in a stopped state and only the carry edge 17 moves forward, so that the carrier is mounted between the carry edge 17 and the intermittent motion element 20. The elasticity of the elasticity applying means 23 is accumulated (compressed), and a space corresponding to the compressed amount of the elasticity applying means 23 is formed between the distal end side of the carry edge 17 and the intermittent motion element 20.
[0046]
Then, when the contact of the member to be corrected W is released by the upward movement of the movable side indenter 12 in the correcting means 1A, the gripper 22 holding the member to be corrected W and the intermittent motion by the return elasticity of the elasticity applying means 23 having accumulated elasticity. The child 20 is integrally moved forward with respect to the carry edge 17 by a length corresponding to the amount of elasticity accumulated.
[0047]
In this state, the correction target member W is sent out (supplied) onto the fixed side indenter 8 in the first correction means 1A, and the upper and lower surfaces are corrected by the first correction means 1A, that is, by the fluid pressure cylinders 10, 10. Each movable indenter 12 is moved down, and the pressing force starts a correction process such as vertical bending of the member W to be corrected on each fixed indenter 8.
[0048]
During the pressing operation by each movable side indenter 12 in the correction process, the correction target member W is in a fixed state, and the carry edge 17 is moved forward at a predetermined (constant) speed. Only the edge 17 is moved forward to accumulate (compress) the elasticity of the elasticity applying means 23 again, and a space corresponding to the compression of the elasticity applying means 23 is formed between the edge 17 and the intermittent motion element 20.
[0049]
When the fixed position of the correction target member W is released by the upward movement of each movable indenter 12, the gripper 22 holding the correction target member W and the intermittent movement by the return elasticity of the elasticity applying means 23 as described above. The movable element 12 is moved forward by a length corresponding to the amount of elasticity accumulated with respect to the carry edge 17 as a unit, and the movable indenter 12 is again moved by the fluid pressure cylinders 10 and 10 in the first correcting means 1A. The member W is moved downward, and a correction operation such as a vertical bending of the member W to be corrected on each fixed side indenter 8 is performed by the pressing force.
[0050]
As described above, the correction target member W is intermittently fed into the first correcting means 1A by a predetermined length by the feeding means 2 in connection with the correcting operation (feeding step), and the first correcting means The correction (correction process) such as the vertical bending of the correction target member W fed in 1A is performed under a series of feeding conditions.
[0051]
Next, the correction target member W whose vertical bending or the like has been corrected by the first correction means 1A is sequentially and intermittently fed into the second correction means 1B by the feeding means 2 as described above. In the second correction means 1B, the member W to be corrected is pressed by the pressing force of each fixed side indenter 8 positioned in the left and right lateral direction and each movable side indenter 12 traversed by the fluid pressure cylinders 10, 10. A correction operation such as right and left lateral bending is performed. In this case, the correction operation by the first correction unit 1A and the correction operation by the second correction unit 1B are set to be performed simultaneously.
[0052]
Therefore, when the carry edge 17 in the feeding means 2 is located near the movement end position of the other end (right end in the figure) of the main body frame 16, the other end (tip) of the member W to be corrected is provided. After the correction operation by the first correction unit 1A and the correction operation by the second correction unit 1B are completed, the device is positioned so as to face one end of the extraction unit 3.
[0053]
In this state, at the carry edge 17 at the movement start position of one end (the left end in the drawing) of the drawer 3, the other end (the tip) of the member to be corrected W is incorporated into the intermittent motion element 20. It is gripped by the gripper 22. The gripper 22 detects, by the second limit switch 30, a state in which the carry edge 17 is located in the vicinity of the movement end position of the carry edge 17 in the feeding means 2, and electrically detects the state based on the detection signal of the second limit switch 30. The gripping state is set by the activated operation control means.
[0054]
Then, the feeding operation is performed in a state where the correction target member W is gripped by the feeding means 2 and the drawing means 3 until the carry edge 17 of the feeding means 2 is positioned at the movement end position of the main body frame 16. When the gripper 22 is located at the end of the movement, the gripper 22 on the feeding means 2 side is opened by the operation control means electrically operated based on the detection signal of the third limit switch 31 for detecting the position, and The gripping state of one end of the correction member W is released.
[0055]
Thereafter, the carry edge 17 of the drawing means 3 is linked to the correcting operation of the first correcting means 1A and the second correcting means 1B, and is operated in the same manner as the above-mentioned feeding means 3 so that the member to be corrected W has a predetermined length. The first correction means 1A intermittently pulls out (drawing step), corrects the correction target member W in the vertical direction (such as bending) in the first correction means 1A (correction step), and removes the correction target member W in the second correction means 1B. The correction is performed simultaneously with the correction (correction process) such as bending in the left and right direction, and further, the correction target member W that has completed the correction such as the bending in the vertical direction of the correction target member W is processed by the second correction unit 1B in the left and right direction. Is performed under the above-mentioned series of feeding conditions.
[0056]
When all the corrections of the member to be corrected W have been completed and the carry edge 17 of the drawer 3 is located at the end of movement of the other end (the right end in the figure), a fourth limit for detecting the position is provided. The gripper 22 on the side of the pull-out means 3 is opened by the operation control means which is electrically operated based on the detection signal of the switch 32, and the gripping state of the other end of the member W to be corrected is released. The positioned member W to be corrected is taken out by an appropriate taking out means and carried out to the take-out mounting table 5.
[0057]
Here, the correction is performed on the upper and lower left and right surfaces of the long correction target member W having a rectangular cross section, that is, the straightness correction is performed, and the first correction unit 1A and the second correction unit 1B perform the correction. In the correcting operation, the pressurizing (pressing) force of the fluid pressure cylinder 10 located on the inlet side is set to be greater than the pressurizing (pressing) force of the fluid pressure cylinder 10 located on the outlet side in both the fluid pressure cylinders 10, 10. Then, a large strain is applied to the member to be corrected W on the inlet side, and the pressing (pressing) force is temporarily reduced (weakened) for a while toward the outlet side to apply a small strain. Therefore, it is possible to apply the pressing force for the correction to the member to be corrected W without difficulty, and the correction can be performed, and an effective correction operation can be obtained.
[0058]
In the feeding means 2 and the drawing means 3, the carry edge 17 positioned at the end of movement is driven, for example, by driving the driving means 28 in the reverse direction to return to the original position, that is, the movement start position. It is.
[0059]
In the above-described embodiment, the correction means 1 is constituted by the first correction means 1A for correcting the opposed upper and lower surfaces of the member to be corrected W and the second correction means 1B for correcting the opposed left and right surfaces. However, any one of the correcting means may be adopted, and the pressing force (pressing force) in the correcting means 1 is arbitrarily set according to the size of the cross-sectional rectangle of the member to be corrected W, and the setting is performed by management by a computer. be able to.
[0060]
【The invention's effect】
According to the first aspect of the present invention, the material to be corrected is intermittently sent to the correcting means by a predetermined length intermittently, and a plurality of materials to be corrected sent by the correcting means are supplied to the correcting member from a plurality of directions facing each other from two surfaces. The straightness is corrected by partially pressing with a pressing element, and thereafter, the straightened member having been corrected is intermittently sequentially pulled out by a predetermined length of the straightening means, whereby the straightness of the long straightened material is corrected. The straightening can be performed continuously during the course of a series of feeds.
[0061]
According to the second aspect of the present invention, in addition to the effect of the first aspect of the present invention, the feeding and pulling-out operations of the member to be corrected with respect to the correcting means can be smoothly performed.
[0062]
According to the third aspect of the invention, the member to be corrected can be corrected by applying a pressing force for correction to the member to be corrected without difficulty, and the correcting operation can be performed effectively.
[0063]
According to the invention of claim 4, similarly to the effect of the invention of claim 1, straightness correction of a long material to be corrected having a rectangular cross section is continuously performed during a series of feeding progresses. Can be.
[0064]
According to the fifth aspect of the present invention, as well as the effect of the second aspect of the invention, in addition to the fourth aspect of the present invention, the operation of feeding and withdrawing the member to be corrected with respect to the correcting means is performed smoothly. obtain.
[0065]
According to the sixth aspect of the present invention, similarly to the effect of the third aspect of the present invention, the member to be corrected can be corrected by applying a pressing force for correction to the member to be corrected without difficulty, and the correction can be performed effectively. Action can be taken.
[Brief description of the drawings]
FIG. 1A is an explanatory diagram showing an outline of a correction device according to an embodiment, and FIG. 1B is an explanatory diagram showing a state of a member to be corrected being sent and received in the correction device.
FIG. 2 is an enlarged plan view of a partial cross section showing a feeding means and a vertical correcting means in the straightening device.
FIG. 3 is an enlarged plan view of a partial cross section showing a correcting device and a drawing device in a horizontal direction in the correcting device.
FIG. 4 is an enlarged plan view of a partial cross section showing a main part of a feeding unit and a drawing unit in the straightening device.
FIG. 5 is an enlarged plan view of a partial cross section showing a vertical correcting means.
FIG. 6 is an enlarged side view showing the vertical correcting means.
FIG. 7 is an explanatory view of the operation of the correcting means in the vertical direction (horizontal direction).
[Explanation of symbols]
1 Corrective measures
1A First correction means
1B Second correction means
2 sending means
3 Withdrawal means
8 Fixed side indenter
10 Fluid pressure cylinder
12 Moving side indenter
17 Carry Edge
W Corrected member

Claims

A method for correcting the straightness of a material to be corrected comprising a long object having a rectangular cross section, wherein the member to be corrected has a predetermined length with respect to a correction means for pressing two opposing surfaces of the material to be corrected. A step of intermittently feeding the member one by one intermittently, a correcting step of partially pressing the member to be corrected sent by the correcting means from two opposing surface directions by a plurality of pressing elements, and correcting the member. A step of intermittently sequentially pulling out the member to be corrected from the correcting means at a predetermined length in accordance with the completion of the feeding of the member to be corrected.

2. The method for correcting a long object according to claim 1, wherein an intermittent feeding amount of the step of feeding the member to be corrected and a step of pulling out the member to be corrected are set to the same length, and are set so as to perform a synchronous operation. A method for straightening a long object, characterized in that:

3. The method for correcting a long object according to claim 1 or 2, wherein when the member to be corrected is partially pressed by a plurality of pressing elements in a correcting step, the member is pressed from a feeding side to a drawing side of the member to be corrected. A method for correcting a long object, wherein the pressure is temporarily reduced.

An apparatus for correcting the straightness of a material to be corrected comprising a long object having a rectangular cross section, comprising: a correction means for performing a correction process on two opposing surfaces of the material to be corrected; Feeding means for intermittently feeding the member to be corrected intermittently by a predetermined length; and A straightening device for a long object, comprising: a drawer for sequentially drawing sequentially.

5. The device for correcting a long object according to claim 4, wherein the intermittent feeding amount of the feeding means and the drawing means is set to the same length, and the intermittent feeding operations of the two are set to be synchronized. For straightening long objects.

The device for correcting a long object according to claim 4 or 5, wherein a plurality of pressers of the correction means are arranged at predetermined intervals along a feed direction of the member to be corrected, and the pressers are fixed side indenters. And a movable-side indenter positioned between the fixed-side indenter, and the pressing force of the movable-side indenter is configured to be reduced for a while from the feeding side to the drawing side of the member to be corrected. A straightening device for long objects.