JP3620101B2

JP3620101B2 - Sheet material forming method and apparatus

Info

Publication number: JP3620101B2
Application number: JP16641795A
Authority: JP
Inventors: 隆史 ▲吉▼田; 茂夫松原
Original assignee: Matsushita Electric Works Ltd
Current assignee: Panasonic Electric Works Co Ltd
Priority date: 1995-06-30
Filing date: 1995-06-30
Publication date: 2005-02-16
Anticipated expiration: 2020-02-16
Also published as: JPH0910855A

Description

【０００１】
【産業上の利用分野】
本発明は、板材の成形方法及びその成形装置に関するものである。
【０００２】
【従来の技術】
図３は、平成５年度塑性加工委春季講演会、及び第４４回塑性加工連合講演会の予稿集に開示された板材の従来の成形方法、及び成形装置を示すものであり、この成形装置は、主に、基台１と支持枠２、第１押圧体３、第２押圧体４、駆動部（図示せず）、及び制御部（図示せず）とを有して構成されている。
【０００３】
基台１は、板状体であって、その周端近傍には２本のガイドポスト５が立設されてなり、基台１には、基台１をその板状の面内方向である水平面内方向に移動させるための駆動部である水平駆動部（図示せず）が設けられ、その水平駆動部が制御部により制御されて、基台１の水平面内方向の位置が制御されるようにされている。
【０００４】
支持枠２は、その略中央部に貫通孔が設けられると共に周端近傍にガイドポスト５が挿通されるガイド孔２ａを備えた枠本体２ｂと、枠本体２ｂの基台１と反対側である上面側に固着されて被加工板材６を挟持する素材台２ｃと、素材押さえ２ｄとを有して構成されている。また、素材台２ｃには第１押圧体３を挿通させるための挿入孔が、素材押さえ２ｄには第２押圧体４が挿入されると共に成形された完成品が突出するための逃がし孔２ｅが設けられている。そして、支持枠２は、ガイド孔２ａにガイドポスト５が挿通されて、ガイドポスト５に沿って摺動自在とされ、基台１に近接離間自在とされている。
【０００５】
第１押圧体３は、略円柱状に形成されて基台１上に立設されてなり、支持枠２の貫通孔側から挿入されて素材台２ｃの挿入孔に挿入され、その先端３ａが被加工板材６の一面側である下面に当接するように構成されている。そして、支持枠２は、第１押圧体３の先端３ａが支持枠２に固定された被加工板材６の一面側である下面に当接することで、その被加工板材６の剛性により基台１に対して所定の間隔を保って基台１と略平行に支持されるようにされている。
【０００６】
第２押圧体４は、先端に略半球状に形成された頭部４ａを備えてなり、その頭部４ａが、支持枠２に固定された被加工板材６に逃がし孔２ｅを通って当接してなり、制御部（図示せず）で制御されて、先端が駆動部である垂直駆動部により被加工板材６を押圧して押し込む方向に移動制御される。
【０００７】
このように構成された板材の成形装置では、制御部に組み込まれたプログラムにより、第１押圧体３と第２押圧体４の相対的な位置を制御して、被加工板材６を所定の３次元形状とする成形が行われる。つまり、まず水平駆動部により水平方向に基台１を移動させて、第２押圧体４を被加工板材６の所望の位置に合わせ、垂直駆動部により第２押圧体４を垂直方向に制御して、成形完了後の外形状である仮想成形面に沿うように、被加工板材６を押圧する方向である基台１の方向に所定量だけ押し込む。この押し込みにより、支持枠２はガイドポスト５にガイドされており、第２押圧体４の押し込み量と略同量だけ被加工板材６と共に基台１側に移動する。次に、基台１を、水平駆動部によりその面内方向である水平面内方向に移動させて、第１押圧体３の周りを第２押圧体４が相対移動するように制御させる。
【０００８】
つまり、被加工板材６に当接させた第２押圧体４を、第１押圧体３の周りに移動させながら、第１の押圧体３に対して第２押圧体４と支持枠２とを基台１側に移動させるように制御する。このとき、基台１は、第２押圧体４の頭部が第１押圧体３の周りであって仮想成形面上を１回転することで、成形される形状によって平面視では例えば円形状や、四角形状、あるいは多角形状等の種々の軌跡を描くように移動制御される。そして、その後に、第２押圧体４を、上述のように被加工板材６を押圧する方向である基台１と角度をなす斜め方向に所定量だけ押し込んで、上述の制御を繰り返す。また、第２押圧体４が第１押圧体３の周りを相対的に移動する方向は、その１回転毎に反転されて反対方向とされ、所定の３次元形状を有する成形完成品が得られるようにされている。
【０００９】
したがって、このような成形方法、及び成形装置によれば、成形品の横断面が円形に限らず種々の形状を成形できるほか、形状の異なる成形品を生産する場合に、その製品毎に金型を製作する必要がなく、金型製作コストや製作時間を削減できる。
【００１０】
【発明が解決しようとする課題】
しかしながら、上述のように構成された従来の板材の成形方法、及び成形装置にあっては、支持枠２は、第２押圧体４が被加工板材６を押圧することにより移動するようにされているために、被加工板材６の板厚や材質、支持枠２の重量等によっては、支持枠２が第２押圧体４の被加工板材６方向への移動と共に移動しないために所定の形状の成形品が得られない場合があるという問題点があり、また、被加工板材６が支持枠２の自重により変形してしまう恐れがあるという問題点もあった。
【００１１】
本発明は、上記問題点に鑑みてなされもので、その目的とするところは、支持枠と第２押圧体を連動して移動制御させると共に板材が不用意に変形しにくい板材の成形方法を提供することにあり、また、別の目的とするところは、その成形方法を実施するための板材の成形装置を提供することにある。
【００１２】
【課題を解決するための手段】
本発明は上記の問題点を解決するため、請求項１記載の発明にあっては、金属製の被加工板材６の周縁部６ａを支持枠２に固定し、被加工板材６を肉厚方向に押圧可能な第１押圧体３を前記周縁部６ａよりも内側の部位であって前記被加工板材６の一面側に当接させると共に、他面側に前記被加工板材６を前記第１押圧体３と反対方向に押圧可能な略半球状の頭部４ａを備えた第２押圧体４を当接させ、前記第２押圧体４を前記第１押圧体３の周りに移動させながら、前記第１押圧体３に対して第２押圧体４と前記支持枠２とを、前記第１押圧体３及び第２押圧体４が前記被加工板材６を押圧するように、前記被加工板材６の肉厚方向であって同方向に相対移動させて前記被加工板材６を所定の３次元形状に成形する板材の成形方法であって、前記第２押圧体４が前記被加工板材６を押圧するように移動した際に、前記支持枠２を前記押圧量に応じて前記被加工板材６の押圧方向と同方向に略同量だけ移動制御させて前記被加工板材６を成形することを特徴とするものである。
【００１３】
更に、請求項１記載の発明にあっては、前記板材の成形方法において、前記第２押圧体４が、前記第１押圧体３の周りを相対移動する際に、前記第１押圧体３の周りを１回りする毎に移動方向を反転するようにさせたことを特徴とするものである。
【００１４】
請求項２記載の発明にあっては、請求項１記載の板材の成形方法を実施するための成形装置であって、ガイドポスト５が立設された基台１と、前記ガイドポスト５が挿入されるガイド孔２ａを備え前記基台１に近接離間可能に設けられると共に被加工板材６の周縁部６ａを固定する支持枠２と、前記被加工板材６の一面側に当接して該被加工板材６を一面側から押圧可能な第１押圧体３と、前記被加工板材６の他面側に当接して該被加工板材６を他面側から押圧可能な半球状の頭部４ａを備えた第２押圧体４と、該第２押圧体４と前記第１押圧体３の少なくとも一方を、前記第１押圧体３と第２押圧体４とが前記被加工板材６を押圧しながら前記第２押圧体４が前記被加工板材６の仮想成形面に沿って前記第１押圧体３の周りを相対移動するように制御する制御部７と、前記第２押圧体４が前記被加工板材６を押圧するように移動した際に、該移動に連動させて前記支持枠２を同方向に同量だけ移動させる支持枠移動制御手段８とを有し、前記第２押圧体４が、前記第１押圧体３の周りを相対移動する際に、前記第１押圧体３の周りを１回りする毎に移動方向を反転するようになしたことを特徴とするものである。
【００１５】
請求項３記載の発明にあっては、請求項２記載の板材の成形装置において、前記支持枠移動制御手段８を、前記基台１に立設されたボールネジ８ａと、前記支持枠２を前記ボールネジ８ａに支持させるボールネジ取付部８ｃと、前記制御部７からの信号により前記ボールネジ８ａを駆動させるボールねじ駆動部８ｄとを備えて構成したことを特徴とするものである。
【００１６】
請求項４記載の発明にあっては、請求項３記載の板材の成形装置において、前記支持枠２の下面側に第１の球面軸受け２ｋを設け、該第１の球面軸受け２ｋを介して前記支持枠２を前記ボールネジ取付部８ｃに取り付けると共に、前記支持枠２のガイド孔２ａに第２の球面軸受け２ｍを設けて、前記支持枠２を前記基台１に対して傾けて配設したことを特徴とするものである。
【００１７】
【作用】
このように構成したため本発明は、請求項１記載の発明にあっては、支持枠２は、第２押圧体４の被加工板材６を押圧する方向への相対押し込み量に応じて略同量だけ連動して移動制御され、第２押圧体４が被加工板材６を押圧する方向へ移動した際に支持枠２が、同方向に移動しないことがなくなって所定の形状に成形ができると共に、支持枠２は第２押圧体４の被加工板材６を押圧する方向への移動量が制御されるものであるために、被加工板材６に支持枠２の重量を含めて必要以上に力をかけることがなくなり、被加工板材６が変形することがなくなる。
【００１８】
請求項１記載の発明にあっては、前記の作用に加えて、第２押圧体４が仮想成形面上を第１押圧体３のまわりに交互に反対方向に相対移動して、成形加工品にねじれを生じにくくなる。
【００１９】
請求項２、又は請求項３記載の発明にあっては、成形装置が、請求項１記載の成形方法の作用を奏する。
【００２０】
請求項４記載の発明にあっては、請求項３記載の成形装置の作用に加えて、成形加工品の支持枠２に狭持された周縁部６ａと仮想成形面のなす内角が９０度以下の成形も可能となり、また、成形加工品の天面と支持枠２に挟持された周縁部６ａが平行でない形状の成形も可能となる。
【００２１】
【実施例】
図１は、本発明の板材の成形方法、及びその方法を実施するための成形装置の第１の実施例を示すものであり、この成形装置は、主に、基台１と支持枠２、第１押圧体３、第２押圧体４、制御部７、支持枠移動制御手段８、及び駆動部９とを有して構成されている。
【００２２】
基台１は、その面内方向に数値制御が可能な板状体であって、その周端近傍には２本のガイドポスト５が立設されてなり、基台１には、基台１をその板状の面内方向である水平面内方向に移動させるための駆動部９である水平駆動部９ａが設けられ、その水平駆動部９ａが制御部７により制御されて、基台１の水平面内方向の位置が制御されるようにされている。
【００２３】
支持枠２は、その略中央部に貫通孔２ｆが設けられると共に周端近傍にガイドポスト５が挿通されるガイド孔２ａを備えた枠本体２ｂと、枠本体２ｂの基台１と反対側である上面側に固着されて被加工板材６の周縁部６ａを挟持する素材台２ｃと、素材押さえ２ｄとを有して構成されている。また、素材台２ｃには第１押圧体３を挿通させるための挿入孔２ｇが、素材押さえ２ｄには第２押圧体４が挿入されると共に成形された完成品が突出するための逃がし孔２ｅが設けられている。そして、支持枠２は、平面視で貫通孔２ｆと、挿入孔２ｇ及び逃がし孔２ｅとが重なりを生ずるように組み合わされると共に、ガイド孔２ａにガイドポスト５が挿通されて、ガイドポスト５に沿って摺動自在とされ、基台１に近接離間可能とされている。なお、図において２ｈは、ガイド孔２ａに配設されたガイドブシュである。
【００２４】
第１押圧体３は、略円柱状に形成され、基台１上の略中央部に立設されており、その先端３ａが支持枠２の枠本体２ｂに設けられた貫通孔２ｆ側から挿入されて、素材台２ｃの挿通孔２ｇを貫通し、被加工板材６の一面側である下側に当接するように構成されている。
【００２５】
第２押圧体４は、先端に半球状の頭部４ａを備えてなり、その頭部４ａが支持枠２に固定された被加工板材６の他面側である上面に、素材押さえ２ｄの逃がし孔２ｅを通って当接してなり、頭部４ａが制御部７で制御されて、駆動部９である垂直駆動部９ｂにより被加工板材６を押し込む方向である基台１の方向に移動制御される。
【００２６】
支持枠移動制御手段８は、支持枠２を第２押圧体４の被加工板材６の押し込み量に応じて移動制御させるもので、支持枠２の周端近傍に対をなすように設けられている。そして、その１つの支持枠移動制御手段８は、基台１に立設されたボールネジ８ａと、ボールネジ８ａを基台に固定させるためのボールネジ固定板８ｂと、支持枠２の異なる貫通孔に装着されて支持枠２をボールネジ８ａに支持させるボールネジ取付部８ｃと、ボールネジ８ａを駆動させるボールねじ駆動部８ｄと、制御部７からの信号により駆動部８ｄを制御するボールネジ制御部８ｅとを備えて構成されている。なお、図において８ｆは、ボールネジ取付ユニットを示す。
【００２７】
このように構成された板材の成形装置では、制御部に組み込まれたプログラムにより、第１押圧体３と第２押圧体４の相対的な位置を制御して、その押圧量や所定の移動経路を設定し、被加工板材６である例えばアルミニウム板を、所定の３次元形状とする成形が行われる。つまり、まず、水平駆動部９ａにより基台１を水平面内方向に移動させて第２押圧体４の水平方向の位置を合わせると共に、垂直駆動部９ｂにより垂直方向を制御して、成形完了後の外形状である仮想成形面に沿うように、被加工板材６を押圧する方向である基台１方向に所定量押し込む。そして、基台１を水平駆動部によりその面内方向である水平面内方向に移動させて、第２押圧体４を被加工板材６の仮想成形面に当接させたまま第１押圧体３の周りを移動するようにさせる。このとき、基台１は、第２押圧体４の先端が、仮想成形面に沿って被加工板材６を押圧して成形しながら移動し、成形される形状の横断面に応じて平面視で例えば円形状や、四角形状、あるいは多角形状等の種々の形状を描くように制御される。
【００２８】
このとき、制御部７は、ボールネジ制御部８ｅにその押し込み量に関する情報を送り、ボールネジ制御部８ｅがボールネジ駆動部８ｄによりボールネジ８ａを回転させて、支持枠２を、その押し込み方向と同方向である基台１方向に、被加工板材６の周縁部６ａを挟んだまま同量だけ移動させる。
【００２９】
その後は、第２押圧体４を、上述のように被加工板材６を押圧する方向である基台１と角度をなす斜め方向に所定量だけ押し込んで、上述の制御を繰り返す。このように制御することで、その押圧力により被加工板材６が、第２押圧体４の頭部４ａが当接した部分で変形して、第２押圧体４側に凸の所定の形状に成形される。また、第２押圧体４が第１押圧体３の周りを相対移動する方向は、１回り毎に反転されて反対方向とされ、所定の３次元形状を有する成形完成品が得られるようにされている。
【００３０】
このように構成されているため、本実施例においては、支持枠２は、第２押圧体４の被加工板材６を押圧する方向への相対押し込み量に応じて同量だけ連動して移動制御され、第２押圧体４が被加工板材６を押圧する方向へ移動した際に支持枠２が、同方向に移動しないことがなくなって所定の形状の成形品が得られると共に、支持枠２は第２押圧体４の被加工板材６を押圧する方向への移動量が制御されるものであるために、被加工板材６に支持枠２の重量を含めて必要以上に力をかけることがなくなり、被加工板材６が変形することがなくなる。また、第２押圧体４が仮想成形面上を第１押圧体３のまわりに交互に反対方向に相対移動して、成形加工品にねじれを生じにくくなる。
【００３１】
図２は、本発明の板材の成形方法、及びその方法を実施するための成形装置の第２の実施例を示すものであり、前記第１の実施例と異なる点は、支持枠２、及び支持枠２のボールネジ８ａへの取付であり、他は前記第１の実施例と同様に構成されている。
【００３２】
支持枠２は、支持枠２の下面側であって周端近傍には、第１の球面軸受け２ｋが設けられており、また、貫通孔２ａの内部には第２の球面軸受け２ｍが設けられて、その略中心を通るガイドポスト５と支持枠２のなす角度が、所定の範囲で変更自在に形成されている。そして、支持枠２は、第１の球面軸受け２ｋに係合する支持棒８ｈが立設された取付体８ｇを介してボールネジ取付部８ｃに取り付けられ、ボールネジ８ａに取り付けられている。このことにより、支持枠２は基台１に対して所定の角度を有するように配設される。
【００３３】
このように構成された板材の成形装置では、被加工板材６を挟持する支持枠２が基台１に対して傾けて配設した点を除いては、前記第１の実施例と同様に制御されて動作し、被加工板材６の成形が行われる。
【００３４】
このように構成されているため、本実施例においては、前記第１の実施例の効果に加えて、成形加工品の支持枠２に狭持された周縁部６ａと仮想成形面のなす内角が９０度以下の成形も可能となり、また、成形加工品の天面と支持枠２に挟持された周縁部６ａが平行でない形状の成形も可能となる。
【００３５】
なお、前記各実施例においては、第１押圧体３が水平面内方向に、第２押圧体４が垂直方向であって基台１の方向に移動して被加工板材６を成形するものとして説明を行ったが、本発明はこれに限らず、例えば第１押圧体は移動せず第２押圧体のみが３方向に移動するもの等、それらが移動制御されて被加工板材を押圧するように相対移動するものであればどのようなものであっても良い。また、本発明では、支持枠２が、枠本体２ｂと素材台２ｃ及び素材押さえ２ｄの３部品を有する必要はなく、例えば被加工板材を枠本体と素材押さえ挟持させたようなものであっても良い。さらには前記各実施例においては、被加工板材６としてアルミニウム板を例示したが、本発明はこれに限らず、他の材質の金属板材であっても良い。
【００３６】
【発明の効果】
上述のように構成されているため本発明は、請求項１記載の発明にあっては、支持枠は、第２押圧体の板材を押圧する方向への押し込み量に応じて同量だけ連動して移動して、第２押圧体が板材を押圧する方向へ移動した際に支持枠が、同方向に移動しないことがなくなって、所定の形状に成形が行えると共に、支持枠は第２押圧体の板材を押圧する方向への移動量が制御されるものであるために、板材に支持枠の重量を含めて必要以上に力をかけることがなくなり、板材が変形することがなくなる。
【００３７】
請求項１記載の発明にあっては、前記の効果に加えて、第２押圧体が仮想成形面上を第１押圧体の周りを交互に反対方向に相対移動して、成形加工品にねじれを生じにくくなる。
【００３８】
請求項２、又は請求項３記載の発明にあっては、成形装置が、請求項１記載の成形方法の効果を奏する。
【００３９】
請求項４記載の発明にあっては、請求項３記載の発明の効果に加えて、成形加工品の支持枠に狭持された部分と仮想成形面のなす内角が９０度以下の成形も可能となり、また、成形加工品の天面と支持枠に挟持された部分が平行でない形状の成形も可能となる。
【図面の簡単な説明】
【図１】本発明の板材の成形方法、及びその方法を実施するための成形装置の第１の実施例を示す一部断面正面図である。
【図２】本発明の板材の成形方法、及びその方法を実施するための成形装置の第２の実施例を示す一部断面正面図である。
【図３】従来の板材の成形方法、及びその方法を実施するための成形装置を示すもので、（ａ）は成形装置の要部の斜視図、（ｂ）は成形品上の第２押圧体の回動軌跡を説明するための模式図である。
【符号の説明】
１基台
２支持枠
２ａガイド孔
２ｋ第１の球面軸受け
２ｍ第２の球面軸受け
３第１押圧体
３ａ先端
４第２押圧体
５ガイドポスト
６板材
７制御部
８支持枠移動制御手段
８ａボールネジ
８ｃボールネジ取付部
８ｄボールネジ駆動部[0001]
[Industrial application fields]
The present invention relates to a plate material forming method and a forming apparatus thereof.
[0002]
[Prior art]
FIG. 3 shows a conventional forming method and forming apparatus of a plate material disclosed in the drafts of the 1993 Plastic Working Committee Spring Lecture Meeting and the 44th Plastic Working Joint Lecture Meeting. Primarily, the base 1 and the support frame 2, the first pressing body 3, the second pressing body 4, a drive unit (not shown), and a control unit (not shown) are configured.
[0003]
The base 1 is a plate-like body, and two guide posts 5 are erected in the vicinity of the peripheral end thereof. The base 1 is in the plate-like in-plane direction. A horizontal drive unit (not shown) that is a drive unit for moving in the horizontal plane direction is provided, and the horizontal drive unit is controlled by the control unit so that the position of the base 1 in the horizontal plane direction is controlled. Has been.
[0004]
The support frame 2 is provided on the opposite side of the frame main body 2b from the frame main body 2b provided with a guide hole 2a in which a through hole is provided in the substantially central portion and the guide post 5 is inserted in the vicinity of the peripheral end. A material base 2c that is fixed to the upper surface side and sandwiches the workpiece plate 6 and a material presser 2d are configured. Further, the material base 2c has an insertion hole for inserting the first pressing body 3, and the material pressing 2d has an escape hole 2e for inserting the second pressing body 4 and projecting the finished product. Is provided. The support frame 2 is inserted into the guide hole 2 a through the guide post 5, is slidable along the guide post 5, and is close to and away from the base 1.
[0005]
The first pressing body 3 is formed in a substantially cylindrical shape and is erected on the base 1. The first pressing body 3 is inserted from the through hole side of the support frame 2 and is inserted into the insertion hole of the material base 2 c, and its tip 3 a is It is comprised so that the lower surface which is the one surface side of the to-be-processed board | plate material 6 may be contact | abutted. Then, the support frame 2 comes into contact with the lower surface, which is one surface side of the processed plate material 6 fixed to the support frame 2, by the tip 3 a of the first pressing body 3. Is supported substantially parallel to the base 1 at a predetermined interval.
[0006]
The second pressing body 4 includes a head portion 4a formed in a substantially hemispherical shape at the tip, and the head portion 4a comes into contact with the workpiece plate 6 fixed to the support frame 2 through the escape hole 2e. Thus, the movement is controlled in a direction in which the workpiece 6 is pressed and pushed by a vertical drive unit whose tip is a drive unit, as controlled by a control unit (not shown).
[0007]
In the plate material forming apparatus configured as described above, a relative position between the first pressing body 3 and the second pressing body 4 is controlled by a program incorporated in the control unit, and the processed plate material 6 is moved to a predetermined 3 Molding to a dimensional shape is performed. That is, first, the base 1 is moved in the horizontal direction by the horizontal drive unit, the second pressing body 4 is adjusted to a desired position of the plate 6 to be processed, and the second pressing body 4 is controlled in the vertical direction by the vertical driving unit. Then, a predetermined amount is pushed in the direction of the base 1 that is the direction in which the processed plate material 6 is pressed along the virtual forming surface that is the outer shape after the forming is completed. By this pushing, the support frame 2 is guided by the guide post 5, and moves to the base 1 side together with the processed plate material 6 by the substantially same amount as the pushing amount of the second pressing body 4. Next, the base 1 is moved in the horizontal plane direction which is the in-plane direction by the horizontal drive unit, and the second pressing body 4 is controlled to move relative to the first pressing body 3.
[0008]
That is, the second pressing body 4 and the support frame 2 are moved with respect to the first pressing body 3 while the second pressing body 4 brought into contact with the workpiece plate 6 is moved around the first pressing body 3. Control is performed so as to move to the base 1 side. At this time, the base 1 has a head portion of the second pressing body 4 around the first pressing body 3 and makes one rotation on the virtual molding surface. The movement is controlled so as to draw various trajectories such as a rectangular shape or a polygonal shape. Then, after that, the second pressing body 4 is pushed by a predetermined amount in an oblique direction that forms an angle with the base 1 that is the direction in which the workpiece plate 6 is pressed as described above, and the above control is repeated. Further, the direction in which the second pressing body 4 moves relatively around the first pressing body 3 is reversed every time it is rotated to be the opposite direction, and a molded finished product having a predetermined three-dimensional shape is obtained. Has been.
[0009]
Therefore, according to such a molding method and molding apparatus, the cross-section of the molded product is not limited to a circular shape, and various shapes can be molded. In addition, when producing molded products having different shapes, a mold is provided for each product. There is no need to manufacture the mold, and the mold manufacturing cost and time can be reduced.
[0010]
[Problems to be solved by the invention]
However, in the conventional plate material molding method and molding apparatus configured as described above, the support frame 2 is moved by the second pressing body 4 pressing the workpiece plate 6. Therefore, depending on the plate thickness and material of the processed plate material 6, the weight of the support frame 2, etc., the support frame 2 does not move along with the movement of the second pressing body 4 in the direction of the processed plate material 6. There is a problem that a molded product may not be obtained, and there is also a problem that the processed plate material 6 may be deformed by its own weight.
[0011]
The present invention has been made in view of the above problems, and an object of the present invention is to provide a method for forming a plate material in which the support frame and the second pressing body are moved in conjunction with each other and the plate material is not easily deformed carelessly. Another object is to provide a plate material forming apparatus for performing the forming method.
[0012]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the present invention provides the invention according to claim 1, wherein the peripheral edge 6a of the metal work plate 6 is fixed to the support frame 2, and the work plate 6 is fixed in the thickness direction. The first pressing body 3 that can be pressed to the inner surface of the peripheral edge portion 6a is brought into contact with one surface side of the processed plate material 6 and the processed plate material 6 is pressed to the other surface side of the first pressing member 6. The second pressing body 4 having a substantially hemispherical head 4a that can be pressed in the opposite direction to the body 3 is brought into contact, and the second pressing body 4 is moved around the first pressing body 3 while the second pressing body 4 is moved around the first pressing body 3. The second pressing body 4 and the support frame 2 are pressed against the first pressing body 3, and the processed plate material 6 so that the first pressing body 3 and the second pressing body 4 press the processed plate material 6. A plate material forming method for forming the processed plate material 6 into a predetermined three-dimensional shape by relatively moving in the same direction. When the second pressing body 4 moves so as to press the processed plate material 6, the support frame 2 is moved in the same direction as the pressing direction of the processed plate material 6 according to the amount of pressing. The processed plate material 6 is formed by controlling.
[0013]
Furthermore, in the invention of claim 1, wherein, in the molding method of the plate, the second pressing member 4, when the relative movement around the first pressing member 3, the first pressing member 3 It is characterized in that the direction of movement is reversed every time it goes around.
[0014]
Insert In the second aspect of the invention, there is provided a molding apparatus for implementing the molding method of a plate material of claim 1, wherein a base 1 in which the guide posts 5 is erected, said guide post 5 And a support frame 2 that is provided in the base 1 so as to be able to approach and separate from the base 1 and that fixes the peripheral edge 6a of the plate 6 to be processed. a first pressing member 3 can be pressed plate material 6 from one side, with the head 4a of the depressible hemispherical an該被machining plate 6 abuts against the other surface of the processed plate material 6 from the other side The second pressing body 4, at least one of the second pressing body 4 and the first pressing body 3, while the first pressing body 3 and the second pressing body 4 press the workpiece plate 6 while pressing the workpiece plate 6. The second pressing body 4 relatively moves around the first pressing body 3 along the virtual molding surface of the processed plate material 6. A control unit 7 for controlled so, when the second pressing member 4 is moved so as to press the workpiece plate 6 moves the support frame 2 in conjunction to the mobile by the same amount in the same direction supporting possess a frame movement control means 8, the second pressing member 4, when the relative movement around the first pressing member 3, the moving direction for each of 1 around the circumference of the first pressing member 3 It is characterized by being reversed .
[0015]
In the invention of claim 3, wherein in the molding apparatus of the plate material according to claim 2, the support frame movement control means 8, a ball screw 8a erected on the base 1, the support frame 2 A ball screw mounting portion 8c to be supported by the ball screw 8a and a ball screw driving portion 8d for driving the ball screw 8a by a signal from the control portion 7 are provided.
[0016]
In the invention described in claim 4, in the molding apparatus of the plate material according to claim 3, the first spherical bearing 2k provided on the lower surface side of the support frame 2, via the spherical bearing 2k of first the The support frame 2 is attached to the ball screw attachment portion 8c, and a second spherical bearing 2m is provided in the guide hole 2a of the support frame 2 so that the support frame 2 is inclined with respect to the base 1. It is characterized by.
[0017]
[Action]
Since the present invention is configured as described above, in the invention according to claim 1, the support frame 2 has substantially the same amount according to the relative pressing amount of the second pressing body 4 in the direction in which the workpiece plate 6 is pressed. Only when the second pressing body 4 moves in the direction in which the workpiece plate 6 is pressed, the support frame 2 does not move in the same direction and can be molded into a predetermined shape. Since the support frame 2 controls the amount of movement of the second pressing body 4 in the direction in which the workpiece plate 6 is pressed, an excessive force is applied to the workpiece plate 6 including the weight of the support frame 2. It will not be applied, and the processed plate 6 will not be deformed.
[0018]
In the first aspect of the invention, in addition to the above-described operation, the second pressing body 4 is relatively moved in the opposite direction around the first pressing body 3 on the virtual molding surface, so that a molded product is obtained. Is less likely to twist.
[0019]
In the invention according to claim 2 or claim 3 , the forming apparatus exhibits the operation of the forming method according to claim 1 .
[0020]
In the invention described in claim 4 , in addition to the function of the molding apparatus described in claim 3, the inner angle formed by the peripheral portion 6a sandwiched by the support frame 2 of the molded product and the virtual molding surface is 90 degrees or less. In addition, the top surface of the molded product and the peripheral edge 6a sandwiched between the support frames 2 can be molded in parallel.
[0021]
【Example】
FIG. 1 shows a first embodiment of a plate material forming method and a forming apparatus for carrying out the method according to the present invention. The forming apparatus mainly includes a base 1 and a support frame 2. The first pressing body 3, the second pressing body 4, the control unit 7, the support frame movement control means 8, and the drive unit 9 are configured.
[0022]
The base 1 is a plate-like body that can be numerically controlled in the in-plane direction, and two guide posts 5 are erected in the vicinity of the peripheral end thereof. Is provided with a horizontal drive unit 9a, which is a drive unit 9 for moving in the horizontal plane direction, which is the plate-like in-plane direction. The horizontal drive unit 9a is controlled by the control unit 7, and the horizontal plane of the base 1 The position in the inward direction is controlled.
[0023]
The support frame 2 is provided with a through hole 2f at a substantially central portion thereof and a frame main body 2b provided with a guide hole 2a through which a guide post 5 is inserted in the vicinity of the peripheral end, and on the opposite side of the base 1 of the frame main body 2b. A material base 2c that is fixed to a certain upper surface side and sandwiches the peripheral edge 6a of the processed plate material 6 and a material presser 2d are configured. An insertion hole 2g for inserting the first pressing body 3 is inserted into the material base 2c, and an escape hole 2e for inserting the second pressing body 4 into the material pressing member 2d and projecting the finished product. Is provided. The support frame 2 is combined so that the through hole 2f, the insertion hole 2g, and the escape hole 2e are overlapped in plan view, and the guide post 5 is inserted into the guide hole 2a. The base 1 can be moved close to and away from the base 1. In the drawing, 2h is a guide bush disposed in the guide hole 2a.
[0024]
The first pressing body 3 is formed in a substantially columnar shape and is erected at a substantially central portion on the base 1, and its tip 3 a is from the side of the through hole 2 f provided in the frame body 2 b of the support frame 2. It is inserted, penetrates the insertion hole 2g of the material base 2c, and is configured to come into contact with the lower side, which is one surface side of the plate 6 to be processed.
[0025]
The second pressing member 4 is made provided with a head portion 4a of the semi-spherical tip, the upper surface thereof heads 4a is another side of the work plate 6 fixed to the support frame 2, the relief of the substrate pressure 2d The head 4 a is controlled by the control unit 7 and is controlled to move in the direction of the base 1, which is the direction in which the workpiece 6 is pushed, by the vertical driving unit 9 b which is the driving unit 9. The
[0026]
The support frame movement control means 8 controls the movement of the support frame 2 in accordance with the pressing amount of the work plate 6 of the second pressing body 4 and is provided so as to make a pair in the vicinity of the peripheral edge of the support frame 2. Yes. The one support frame movement control means 8 is mounted on a ball screw 8a erected on the base 1, a ball screw fixing plate 8b for fixing the ball screw 8a to the base, and different through holes in the support frame 2. And a ball screw mounting portion 8c for supporting the support frame 2 on the ball screw 8a, a ball screw driving portion 8d for driving the ball screw 8a, and a ball screw control portion 8e for controlling the driving portion 8d by a signal from the control portion 7. It is configured. In the figure, 8f represents a ball screw mounting unit.
[0027]
In the plate material forming apparatus configured as described above, the relative position between the first pressing body 3 and the second pressing body 4 is controlled by a program incorporated in the control unit, and the pressing amount and a predetermined movement path are controlled. Is set to form a predetermined three-dimensional shape, for example, an aluminum plate that is the processed plate material 6. That is, first, the base 1 is moved in the horizontal plane by the horizontal drive unit 9a to adjust the horizontal position of the second pressing body 4, and the vertical direction is controlled by the vertical drive unit 9b to complete the molding. A predetermined amount is pushed in the direction of the base 1 that is the direction in which the workpiece 6 is pressed along the virtual forming surface that is the outer shape. And the base 1 is moved in the horizontal plane direction which is the in-plane direction by a horizontal drive part, and the 2nd press body 4 of the 1st press body 3 is made to contact | abut to the virtual molding surface of the to-be-processed board | plate material 6. Let them move around. At this time, the base 1 moves while the tip of the second pressing body 4 presses the processed plate material 6 along the virtual forming surface and moves, and in plan view according to the cross section of the shape to be formed. For example, it is controlled to draw various shapes such as a circular shape, a quadrangular shape, or a polygonal shape.
[0028]
At this time, the control unit 7 sends information about the amount of pushing to the ball screw control unit 8e, the ball screw control unit 8e rotates the ball screw 8a by the ball screw driving unit 8d, and the support frame 2 is moved in the same direction as the pushing direction. The base plate 1 is moved by the same amount in the direction of the base 1 with the peripheral edge 6a of the plate 6 to be processed interposed therebetween.
[0029]
Thereafter, the second pressing body 4 is pushed by a predetermined amount in an oblique direction that forms an angle with the base 1 that is the direction in which the workpiece 6 is pressed as described above, and the above control is repeated. By controlling in this way, the processed plate material 6 is deformed at the portion where the head 4a of the second pressing body 4 abuts by the pressing force, and is formed into a predetermined shape convex toward the second pressing body 4 side. Molded. In addition, the direction in which the second pressing body 4 moves relative to the first pressing body 3 is reversed every time to the opposite direction so that a molded finished product having a predetermined three-dimensional shape is obtained. ing.
[0030]
Since it is configured in this manner, in the present embodiment, the support frame 2 is moved and controlled in conjunction with the same amount according to the relative pressing amount of the second pressing body 4 in the direction in which the workpiece plate 6 is pressed. When the second pressing body 4 moves in the direction in which the workpiece plate 6 is pressed, the support frame 2 does not move in the same direction, and a molded product having a predetermined shape is obtained. Since the amount of movement of the second pressing body 4 in the direction in which the processed plate material 6 is pressed is controlled, no excessive force is applied to the processed plate material 6 including the weight of the support frame 2. The processed plate 6 is not deformed. In addition, the second pressing body 4 is relatively moved on the virtual molding surface around the first pressing body 3 alternately in the opposite direction, so that the molded product is less likely to be twisted.
[0031]
FIG. 2 shows a second embodiment of the plate material forming method of the present invention and a forming apparatus for carrying out the method. The difference from the first embodiment is that the support frame 2 and The mounting of the support frame 2 to the ball screw 8a is the same as that of the first embodiment.
[0032]
The support frame 2 is provided with a first spherical bearing 2k on the lower surface side of the support frame 2 and in the vicinity of the peripheral end, and a second spherical bearing 2m is provided inside the through hole 2a. The angle between the guide post 5 passing through the approximate center and the support frame 2 is formed to be changeable within a predetermined range. The support frame 2 is attached to the ball screw attachment portion 8c via an attachment body 8g provided with a support rod 8h that engages with the first spherical bearing 2k, and is attached to the ball screw 8a. Thus, the support frame 2 is disposed so as to have a predetermined angle with respect to the base 1.
[0033]
The plate material forming apparatus thus configured is controlled in the same manner as in the first embodiment, except that the support frame 2 sandwiching the processed plate material 6 is inclined with respect to the base 1. Then, the processed plate material 6 is formed.
[0034]
In this embodiment, in addition to the effects of the first embodiment, in this embodiment, the inner angle formed between the peripheral edge portion 6a held by the support frame 2 of the molded product and the virtual molding surface is Molding of 90 degrees or less is also possible, and molding of a shape in which the top surface of the molded product and the peripheral edge 6a sandwiched between the support frames 2 are not parallel is also possible.
[0035]
In each of the above-described embodiments, the first pressing body 3 is moved in the horizontal plane direction and the second pressing body 4 is moved in the vertical direction toward the base 1 to form the processed plate material 6. However, the present invention is not limited to this. For example, the first pressing body does not move and only the second pressing body moves in three directions. Any object that moves relatively may be used. Further , in the present invention , the support frame 2 does not need to have three parts, that is , the frame main body 2b, the material base 2c, and the material presser 2d. May be. Furthermore, in each said Example, although the aluminum plate was illustrated as the to-be-processed board | plate material 6, this invention is not restricted to this, The metal plate material of another material may be sufficient.
[0036]
【The invention's effect】
Since the present invention is configured as described above, according to the present invention, the support frame is interlocked by the same amount according to the amount of pressing in the direction of pressing the plate member of the second pressing body. The support frame does not move in the same direction when the second pressing body moves in the direction of pressing the plate member, and can be molded into a predetermined shape. Since the amount of movement in the direction of pressing the plate material is controlled, the plate material is not subjected to an excessive force including the weight of the support frame, and the plate material is not deformed.
[0037]
In the first aspect of the invention, in addition to the above-described effect, the second pressing body relatively moves in the opposite direction around the first pressing body on the virtual molding surface and twists into the molded product. Is less likely to occur.
[0038]
In the invention according to claim 2 or claim 3 , the forming apparatus has the effect of the forming method according to claim 1 .
[0039]
In the invention according to claim 4 , in addition to the effect of the invention according to claim 3 , it is possible to mold the inner angle formed by the virtual molding surface with the portion sandwiched by the support frame of the molded product at 90 degrees or less. In addition, it is possible to mold the molded product in a shape where the top surface of the molded product and the portion sandwiched between the support frames are not parallel.
[Brief description of the drawings]
FIG. 1 is a partially sectional front view showing a first embodiment of a plate material forming method and a forming apparatus for carrying out the method according to the present invention.
FIG. 2 is a partial cross-sectional front view showing a second embodiment of a plate material forming method and a forming apparatus for carrying out the method of the present invention.
FIGS. 3A and 3B show a conventional plate material forming method and a forming apparatus for carrying out the method, wherein FIG. 3A is a perspective view of a main part of the forming apparatus, and FIG. It is a schematic diagram for demonstrating the rotation locus | trajectory of a body.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Base 2 Support frame 2a Guide hole 2k 1st spherical bearing 2m 2nd spherical bearing 3 1st press body 3a Tip 4 2nd press body 5 Guide post 6 Plate material 7 Control part 8 Support frame movement control means 8a Ball screw 8c Ball screw mounting part 8d Ball screw drive part

Claims

A peripheral portion of a metal work plate is fixed to a support frame, and a first pressing body capable of pressing the work plate in the thickness direction is a portion inside the peripheral portion and one surface side of the work plate is brought into contact, the other side of the processed plate material is brought into contact with the second pressing body having a depressible hemispherical head in the direction opposite to the first pressing body, the second pressing member While moving around the first pressing body, the second pressing body and the support frame are pressed against the first pressing body, and the first pressing body and the second pressing body press the processed plate material. And a plate material forming method for forming the plate material to be processed into a predetermined three-dimensional shape by relatively moving in the thickness direction of the plate material to be processed, wherein the second pressing body is the workpiece to be processed. when moved so as to press the plate material, wherein the pressure to the support frame in accordance with the pressing amount of the second pressing member Together form to shape the workpiece plate material just moved controlled the same amount in the pressing direction in the same direction of the plate material, the second pressing body, when the relative movement around the first pressing member, the second molding method to that plate material, characterized in that the direction of movement was to be reversed every time 1 around the circumference of the first pressing member.

A molding apparatus for carrying out the method for molding a plate material according to claim 1 , comprising a base on which a guide post is erected and a guide hole into which the guide post is inserted so as to be able to approach and separate from the base. A supporting frame that is provided and fixes a peripheral edge of the processed plate material; a first pressing body that is in contact with one surface side of the processed plate material and is capable of pressing the processed plate material from the one surface side; a second pressing member having a depressible hemispherical head of該被machining plate from the other side in contact with the side, at least one of the with the second pressing body first pressing member, the second The first pressing body and the second pressing body are controlled so that the second pressing body relatively moves around the first pressing body along the virtual molding surface of the processing board material while the pressing body presses the processing board material. When the control unit and the second pressing body move so as to press the processed plate material Said support frame in conjunction to the mobile and a supporting frame movement control means for moving the same amount in the same direction, the second pressing body, when the relative movement around the first pressing member, wherein An apparatus for forming a plate material , wherein the moving direction is reversed every time the first pressing body is rotated once .

The support frame movement control means includes a ball screw erected on the base, a ball screw mounting portion for supporting the support frame on the ball screw, and a ball screw driving portion for driving the ball screw by a signal from the control portion. The apparatus for forming a plate material according to claim 2, comprising:

A first spherical bearing is provided on the lower surface side of the support frame, the support frame is attached to the ball screw mounting portion via the first spherical bearing, and a second spherical bearing is provided in the guide hole of the support frame. 4. The apparatus for forming a plate material according to claim 3 , wherein the support frame is disposed to be inclined with respect to the base.