JP4220590B2

JP4220590B2 - Method for producing a product having a microscopic hole and / or slit

Info

Publication number: JP4220590B2
Application number: JP15559398A
Authority: JP
Inventors: 昭二二村; 力村田
Original assignee: Hoden Seimitsu Kako Kenkyusho Co Ltd
Current assignee: Hoden Seimitsu Kako Kenkyusho Co Ltd
Priority date: 1998-06-04
Filing date: 1998-06-04
Publication date: 2009-02-04
Anticipated expiration: 2018-06-04
Also published as: JPH11347646A

Description

【０００１】
【発明の属する技術分野】
本発明は、例えば直径0.１〜0.５mmの穴および／または幅寸法0.１〜0.５mmのスリットのような微小寸法の空隙を有する製品の製造方法に関するものであり、特に打抜加工によって成形した複数個の板状部材を係合一体化させて前記微小寸法の穴および／またはスリットを有する製品を製造する方法に関するものである。
【０００２】
【従来の技術】
従来、穴またはスリットを有する製品を製造する場合には、ドリルおよび／またはエンドミルを使用する機械加工によるのが最も一般的である。しかしながら、直径が例えば0.１〜0.５mmのような微小寸法の穴を加工する場合には、特に被加工材が硬質材料であるときや、深さ寸法が直径の５倍を超えるものでは、機械加工が極めて困難であるか、極端な場合には加工が不可能となることがある。
【０００３】
【発明が解決しようとする課題】
一方、上記のような微小寸法の穴および／またはスリットを有する製品を、薄板材料の部材の積層によって製造する手段がある。この場合には原材料である薄板を予め製品の外形輪郭に対応する形状に打抜成形すると共に、前記の穴および／またはスリットを例えばパンチおよびダイによって打抜き成形し、これらの穴および／またはスリットの位置を合致させた状態で積層一体化すればよい。しかしながら、上記の穴の直径寸法またはスリットの幅寸法は、薄板の厚さ寸法と同一か、あるいは９０％程度までに限定されるのが通常であり、これら以下の寸法のものを例えばパンチ・ダイによって打抜加工することは不可能である。従って、例えば0.１〜0.５mmのような微小寸法の穴および／またはスリットを打抜成形するためには、原材料である薄板の厚さ寸法もまた0.１〜0.５mmに限定されることとなり、所定厚さ寸法の製品を積層成形するためには、積層枚数が極めて大となる。この結果製造コストの高騰に加えて、穴および／またはスリットの位置決めが困難となり、寸法精度を低下させる、という問題点がある。
【０００４】
一方、上記のような微小寸法の穴またはスリットを加工する手段として、例えばレーザ加工またはワイヤカット放電加工が知られている。しかしながら、これらの加工手段においては、電源および制御手段等の付帯設備を必要とし、装置全体が高価であると共に、加工に要する時間と工数が多大となり、製造コストの高騰を招来するという問題点がある。
【０００５】
特にワイヤカット放電加工においては、直径0.０５〜0.２５mmのようなワイヤ電極を使用することができるため、微小寸法の穴の加工は勿論のこと、複雑な曲線状のスリットの加工も可能であるが、ワイヤ電極を被加工材を貫通させて走行させるために、予め下穴を穿設するか、被加工材の端縁部から所定の加工部位まで導入させる必要がある。従って、被加工材の中央部に独立的に存在する穴またはスリットを加工することは不可能である。
【０００６】
更に、上記レーザ加工およびワイヤカット放電加工においては、被加工材を貫通する穴またはスリットの加工は可能であるが、いわゆる有底状の非貫通の穴またはスリットは加工できないという問題点がある。
【０００７】
本発明は、上記従来技術に存在する問題点を解決し、微小寸法の穴および／またはスリットを有する製品を、高寸法精度でかつ容易に製造できる方法を提供することを目的とするものである。
【０００８】
【課題を解決するための手段】
上記の課題を解決するために、本発明においては、板状部材の端縁部の一部に穴および／またはスリットの横断面輪郭に対応する形状に形成した成形部と前記端縁部の他の一部に係合部とを形成してなる各々第１の板状部材と第２の板状部材とを、前記各々の係合部を平面への投影輪郭を同一形状にかつ第１の板状部材と第２の板状部材との間において相互に凹凸関係を有するように形成すると共に、第１の板状部材と第２の板状部材とを複数個打抜加工によって形成し、第１の板状部材と第２の板状部材とを成形部を対向させかつ係合部を密着係合させて一体化し、係合部の板状部材を積層するという技術的手段を採用した。
【０００９】
本発明において、板状部材に同軸的にダボおよびダボ穴を複数対成形し、隣接する板状部材間において前記ダボとダボ穴とを係合させて複数個の板状部材を積層一体化することができる。
【００１０】
また本発明において、板状部材にダボまたはダボ穴を複数個成形し、これらのダボまたはダボ穴をベース部材に成形した複数個のダボ穴またはダボと係合させて１層の板状部材をベース部材上に一体化することができる。
【００１１】
さらに本発明において、最下層の板状部材のダボまたはダボ穴をベース部材に成形した複数個のダボ穴またはダボと係合させて複数層の板状部材をベース部材上に一体化することができる。
【００１２】
次に本発明において、フープ状の被加工材を長手方向に順送りすると共に、複数個のステージにおいて複数個の板状部材を打抜き成形し、打抜いた板状部材をプッシュバックにより被加工材の打抜穴に係止させ、被加工材の順送り最終ステージにおいて板状部材を順次押抜いて一体化することができる。
【００１３】
なお本発明において、フープ状の被加工材を長手方向に順送りすると共に、複数個のステージにおいてベース部材および複数個の板状部材を打抜き成形し、打抜いたベース部材および板状部材をプッシュバックにより被加工材の打抜穴に係止させ、被加工材の順送り最終ステージにおいてベース部材および板状部材を順次押抜いて一体化することができる。
【００１４】
【発明の実施の形態】
図１は本発明の第１の実施の形態における製品の例を示す説明図であり、（ａ）は平面、（ｂ）は（ａ）におけるＡ−Ａ線断面、（ｃ）は（ａ）におけるＢ−Ｂ線要部拡大断面、（ｄ）は（ａ）におけるＣ部拡大平面を示す。図１において、１，２は各々板状部材であり、例えば厚さ１mmの鉄板の打抜成形により、各々擬似Ｕ字形および擬似Ｈ形に成形する。
【００１５】
３０は成形部であり、板状部材１，２の端縁部の一部に、例えば直径0.５mmの穴３に対応する半円形に形成して設けられる。次に４は係合部であり、板状部材１，２の他の端縁部の一部に、平面への投影輪郭が相互に同一形状となるように、例えばジグザグ状に成形する。なお板状部材１，２の残余の端縁部は、製品の外周縁に対応する形状に形成する。
【００１６】
５，６は各々ダボおよびダボ穴であり、板状部材１，２の角隅部に例えば２個宛設けられる。このようなダボ５およびダボ穴６を形成するには、例えば横断面が円形のパンチおよびダイを使用し、パンチ先端部のダイへの進入深さ寸法ｄを、板状部材２の厚さ寸法ｔより小に形成することによって可能である。なお上記ダボ５およびダボ穴６は、板状部材１，２の打抜成形と同時に形成してもよく、または板状部材１，２の打抜成形と別個の工程で成形してもよい。なお最下層を形成する板状部材１，２においては、ダボ５を打抜いて、ダボ穴６を貫通した状態に形成することが好ましい。
【００１７】
図２は図１における製品の積層状態を示す要部斜視図であり、同一部分は図１と同一の参照符号で示す。図２において、板状部材１，２を、各々の成形部３０を対向させ、かつ係合部４を係合させて一体化する。これにより成形部３０は、例えば直径0.５mmの穴３（図１参照）に形成されると共に、ジグザグ状の係合部４の係合により、板状部材１，２は平面内における相互移動が拘束されて、隙間なく密着一体化される。
【００１８】
次に他の板状部材１，２を、前記板状部材１，２上に載置してダボ穴６にダボ５を係合させて圧着すれば、両者の対向面を隙間なく密着一体化させることができ、所定枚数を積層すれば、所定厚さの製品を製造することができる。この場合、積層された板状部材１，２は何れもダボ５およびダボ穴６に対する成形部３０および係合部４の相対位置が同一に形成されているため、成形部３０によって形成される穴３の内面は、積層方向において同一面に形成され、高寸法精度が確保され得る。
【００１９】
上記のようにして積層一体化した製品を、真空または保護雰囲気中において、製品の上下方向の圧力を印加し、板状部材１，２を形成する材料の固相線以下の温度に加熱することにより、板状部材１，２の夫々の積層相互間に拡散を行なわせる、いわゆる拡散溶接を行なうと、積層製品の固着一体化を更に向上させ得る。
【００２０】
図３は本発明の第１の実施の形態における被加工材の加工態様を示す要部平面図であり、同一部分は前記図１および図２と同一の参照符号で示す。図３において、７は被加工材であり、長尺状のフープ材を使用し、パンチおよびダイを備えた打抜加工装置を直列的に複数個配設してなる順送り加工装置（図示せず）内を矢印方向に定ピッチＰ宛間欠的にピッチ送りされる。上記打抜加工装置は、少なくともダボ穴６およびダボおよび板状部材１，２を打抜加工するパンチおよびダイを備えると共に、被加工材７の送り方向にｎＰ（ｎは任意の正の整数）のピッチにて配設され、被加工材７に板状部材１，２をピッチＰ宛交互に打抜加工し得るように、それらの作動状態が制御されている。
【００２１】
次に８はパイロット穴であり、前記打抜加工装置の被加工材７の送り方向最上流側に設けられたものにより、被加工材７に定ピッチＰの間隔で規則的に加工され、以後の加工工程における位置決めの基準穴となるものである。
【００２２】
上記のパイロット穴８の加工後、またはパイロット穴８の加工と共に、ダボ穴６およびダボ（図示せず。図１（ｃ）における符号５参照）の成形を行ない、次に必要に応じて最下層を形成する板状部材１，２に対応するダボ穴６のダボ抜き加工を行なう。
【００２３】
更に被加工材７を順次ピッチＰ宛送りながら、板状部材１，２の外形形状に対応する横断面形状を有するパンチおよびダイを備えた打抜加工装置により、図３に示すように被加工材７から板状部材１，２を交互に打抜成形し、かつ打抜いた板状部材１，２をプッシュバックにより被加工材７の打抜穴に係止させる。そして最終ステージにおいて、被加工材７にプッシュバックされて送られた板状部材１，２を順次押抜いて、前記図１および図２に示すように係合させかつ積層するのである。
【００２４】
図４は本発明の第２の実施の形態における製品の例を示す説明図であり、（ａ）は平面、（ｂ）は（ａ）におけるＤ−Ｏ−Ｄ線断面を示し、同一部分は前記図１ないし図３と同一の参照符号で示す。図４において、板状部材１は前記図１に示すものと同様の材料により、中空円板状に打抜成形し、内周端縁部に四分円弧状の例えば幅寸法0.５mmのスリット９，１０を外縁を形成する成形部３１，３２と、直線状の係合部４を設ける。
【００２５】
次に板状部材２は前記板状部材１と同様の等厚の板材により、平面への投影輪郭を鼓状に打抜成形し、外周端縁部に前記スリット９，１０の内縁を形成する成形部３１，３２と、直線状の係合部４とを設け、中央部に穴１１を設ける。なお板状部材１には等軸的に形成したダボ穴６およびダボ５を、中心から等距離に対向させて設ける。
【００２６】
図５は図４における製品の積層状態を示す要部斜視図であり、同一部分は図４と同一の参照符号で示す。図５において、板状部材１，２を、各々成形部３１，３２を対向させ、かつ係合部４を係合させて一体化する。これにより成形部３１，３２により、例えば幅寸法が0.５mmの四分円弧状のスリット９，１０が形成されると共に、直交的に形成された係合部４の係合により、板状部材１，２は平面内における相対移動が拘束されて一体化される。板状部材１，２の積層の態様は前記図１および図２に示すものと同様であり、例えば幅寸法0.５mm、深さ寸法１０mmのスリット９，１０が高精度かつ容易に形成され得るのである。
【００２７】
図６は本発明の第２の実施の形態における被加工材の加工態様を示す要部平面図であり、同一部分は前記図３ないし図５と同一の参照符号で示す。図６において、ダボ穴６およびダボ（図示せず）は、被加工材７に２Ｐ宛成形される。なお図６に示すものにおける板状部材１，２の成形加工および積層態様は、前記図３を参照して記述したものと同様である。
【００２８】
図７および図８は各々本発明の第３の実施の形態における製品の例を示す平面図および板状部材の係合状態を示す斜視図であり、同一部分は前記図１および図２と同一の参照符号で示す。図７および図８に示すものは、板状部材１，２を係合部４を介して係合一体化させることにより、板状部材１，２の１枚の厚さ寸法（例えば１mm）に相当する軸方向寸法を有する例えば0.５mmの微小直径の穴３を形成する手段であり、必要に応じて係合部４を例えばレーザ溶接等によって接合し、固着一体化を向上させることができる。なお１２は貫通穴であり、板状部材１，２の取付用穴を形成し、板状部材１，２と共に、または別個に成形される。
【００２９】
図９および図１０は各々本発明の第４の実施の形態における製品の例を示す平面図および板状部材の係合状態を示す斜視図であり、同一部分は前記図４ないし図８と同一の参照符号で示す。図９および図１０に示すものは、板状部材１，２の形状が異なるものの、前記図７および図８に示すものと基本的には同一の構成および作用である。
【００３０】
図１１は本発明の第５の実施の形態における製品の例を示す説明図であり、（ａ）は平面、（ｂ）は（ａ）におけるＥ−Ｅ線断面を示し、同一部分は前記図９および図１０と同一の参照符号で示す。図１１において、１３は欠円状のスリットであり、板状部材１，２に設けられた成形部３３の対向によって形成される。係合部４は例えばＴ字状に形成されている。１４はベース部材であり、円板状に形成され、このベース部材１４上にダボ穴６およびダボ５を介して板状部材１，２が載置一体化され、スリット１３の下方がベース部材１４によって閉塞されるのである。
【００３１】
図１２は図１１における板状部材１，２およびベース部材１４を係合一体化させる状態を示す斜視図であり、同一部分は前記図１１と同一の参照符号で示す。図１２において、まずベース部材１４上に板状部材１をダボ穴６およびダボ５（図示せず、図１１（ｂ）参照）を介して載置一体化し、次に板状部材２を板状部材１およびベース部材１４に係合一体化する。この場合、板状部材２は係合部４およびダボ穴６とダボ５とにより、板状部材１およびベース部材１４と係合一体化され、成形部３３により下方が閉塞された欠円状のスリット１３が形成されるのである。なお板状部材１，２を予め係合させた後、ベース部材１４上に係合させてもよい。
【００３２】
図１１および図１２においては、ベース部材１４上に１層の板状部材１，２を載置係合させた例について記述したが、板状部材１，２を前記図４および図５に示すような多層構造に形成することもできる。
【００３３】
図１３は本発明の第５の実施の形態における被加工材の加工態様を示す説明図であり、（ａ）（ｂ）は各々被加工材の要部平面、（ｃ）は加工に使用する金型の要部平面を示し、同一部分は前記図１１および図１２と同一の参照符号で示す。図１３（ａ）（ｂ）において、長尺状のフープ材からなる被加工材７は、矢印方向に所定ピッチＰ宛間欠的にピッチ送りされ、ダボ出しパイロット穴抜き工程Ｓ１、ダボ抜き工程Ｓ２、内形抜き工程Ｓ３、外形抜き工程Ｓ４および積層工程Ｓ５を順次経由する間に所定の加工が施されて、前記図１１に示す製品が製造されるのである。なお紙面の都合で被加工材７は２本に分断した状態で示されているが、連続した長尺状のフープ材であり、内形抜き工程Ｓ３の部分を重複して示してある。
【００３４】
図１３（ｃ）において、Ｄ１〜Ｄ６は夫々金型であり、順送り加工装置（図示せず）内に、被加工材７の送り方向にｎＰ（ｎは任意の正の整数）のピッチにて配設されて、前記の夫々の工程における所定の加工を行なうものである。まず金型Ｄ１にはパイロット穴８および貫通穴１２を加工するパンチ１５，１６およびダボ穴６とダボ（図示せず）を加工するパンチ１７ならびにこれらのパンチに対応するダイ（図示せず）が設けられている。金型Ｄ２には前記金型Ｄ１のパンチ１７に対応する位置にパンチ１８とダイ（図示せず、以下同じ）が設けられ、前記図１２に示すベース部材１４のダボ穴６を貫通させる加工を行なう。
【００３５】
次に金型Ｄ３には図１２に示す板状部材１の成形部３３および係合部４を打抜加工するパンチ１９およびダイが設けられる。更に金型Ｄ４およびＤ５には、夫々前記図１２に示す板状部材２ならびに板状部材１およびベース部材１４の外形を打抜き、かつプッシュバックするためのパンチ２０，２１およびこれらのパンチに対応するダイが設けられている。金型Ｄ６には押抜き積層用のパンチ２２，２３と平滑な平面を有するダイとが設けられており、パンチ２２，２３の下死点位置を調整可能とし、必要あれば両者が各々独立して作動可能とするのが好ましい。なお図１３（ａ）（ｂ）における符号Ｄ１〜Ｄ６は、（ｃ）の夫々金型Ｄ１〜Ｄ６の作動位置を示している。
【００３６】
上記の構成により、まずダボ出しパイロット穴抜き工程Ｓ１において金型Ｄ１により、２個のパイロット穴８、２個の貫通穴１２および５個のダボ穴６およびダボ（図示せず、図１１（ｂ）における符号５参照）が、ピッチＰ毎に被加工材７に加工される。このパイロット穴８は以後の加工工程において金型に設けられたパイロットピンの係合により、加工位置の基準穴となるものである。
【００３７】
次にダボ抜き工程Ｓ２においては、金型Ｄ２により被加工材７の送りピッチ３Ｐ毎に５個のダボ穴６が貫通加工される。このダボ穴６は図１２におけるベース部材１４に対するものであり、その下面にダボが突出するのを防止するためのものである。このダボ抜き工程Ｓ２においては、被加工材７の送りピッチ３Ｐ毎に金型Ｄ２を選択的に作動させて行なう。
【００３８】
内形抜き工程Ｓ３においては、金型Ｄ３により図１１および図１２における板状部材１の内形部分の穴抜きを行なう。すなわち金型Ｄ３のパンチ１９およびダイにより、成形部３３および係合部４が打抜加工され打抜かれた部分１ａは、ダイを経て下方に落下し系外に排出される。なおこの内形抜き工程Ｓ３においても、打抜き加工は金型Ｄ３の選択的作動によって被加工材７の送りピッチ３Ｐ毎に行なわれる。
【００３９】
更に外形抜き工程Ｓ４においては、金型Ｄ４，Ｄ５により、図１２における板状部材１，２およびベース部材１４の外形部分の打抜きおよびこれらの打抜部分の被加工材７へのプッシュバックが行なわれる。すなわち、金型Ｄ４により図１１および図１２における板状部材２の外形部分である成形部３３および係合部４が加工されて打抜かれ、その後被加工材７の打抜穴にプッシュバックされて係止される。
【００４０】
次に金型Ｄ５により、被加工材７の打抜かれた部分１ａに相当する位置において、図１１および図１２における板状部材１の外形部分の打抜きとプッシュバック、および被加工材７のダボ抜きが行なわれた部分に相当する位置において、図１１および図１２におけるベース部材１４の外形部分の打抜きとプッシュバックが行なわれる。なお金型Ｄ４の作動は被加工材７の送りピッチ３Ｐ毎に行なわれ、金型Ｄ５の作動は、被加工材７の送りピッチ３Ｐ毎に１回停止する。
【００４１】
そして最終の積層工程Ｓ５においては、まず金型Ｄ６のパンチ２３によってベース部材１４に相当する部分が押抜かれ、次に同じパンチ２３によって板状部材１に相当する部分が押抜かれて、ベース部材１４上に積層され、図１１（ｂ）に示すようにベース部材１４のダボ穴６に板状部材１のダボ５が係合して一体化される。次に金型Ｄ６のパンチ２２によって板状部材２が押抜かれ、前記図１１に示すように板状部材２と係合部４を介し、またベース部材１４とダボ５およびダボ穴６を介して一体に係合されるのである。この場合押抜き用のパンチ２２，２３の外形寸法は、図１２に示す板状部材２の外形寸法、ならびに板状部材１およびベース部材１４の外形寸法より若干小さく形成しておくことが好ましい。
【００４２】
図１４は本発明の第６の実施の形態における製品の例を示す説明図であり、（ａ）は平面、（ｂ）は（ａ）におけるＦ−Ｆ線断面を示し、同一部分は前記図１１と同一の参照符号で示す。図１４において、２４はカバー部材であり、ベース部材１４と同様に、中央部に穴２５を有する中空円板状に形成され、相互に係合一体化された板状部材１，２をカバー部材２４とベース部材１４とによって上下方向から挟着積層一体化し、穴２５内にスリット１３が臨むように形成したものであり、基本的には前記図１１に示すものと同様の構成のものである。
【００４３】
図１５は図１４における夫々の部材を係合一体化させる状態を示す斜視図であり、同一部分は図１４と同一の参照符号で示す。図１５において、まずベース部材１４上に板状部材１をダボ穴６とダボ５（図示せず、図１４（ｂ）参照）とを介して載置一体化し、次に板状部材２を板状部材１に係合部４を介して係合一体化し、更にカバー部材２４を板状部材１，２上に載置一体化する。これにより、板状部材１，２の係合部４はベース部材１４とカバー部材２４とによって上下面を挟着されるから、板状部材２の自由端が上下に相対移動することなく、成形部３３によって形成されるスリット１３の微小幅寸法が高精度に確保され得るのである。なお夫々の部材の係合に際して、板状部材１，２を予め係合一体化させておいてもよいことは勿論である。
【００４４】
図１６は本発明の第６の実施の形態における被加工材の加工態様を示す説明図であり、（ａ）（ｂ）は各々被加工材の要部平面、（ｃ）は加工に使用する金型の要部平面を示し、同一部分は前記図１３ないし図１５と同一の参照符号で示す。図１６において、金型Ｄ７はベース部材１４およびカバー部材２４の穴２５を打抜くためのパンチ２６およびこれと対をなすダイを備えている。なお金型Ｄ５は板状部材１、ベース部材１４およびカバー部材２４の外形の打抜きおよびプッシュバックを行なうためのものである。
【００４５】
上記の構成により、図１４および図１５に示す４種の部材を順送り加工により被加工材７から打抜加工し、プッシュバックによって被加工材７の打抜穴に係止させ、最終工程においてこれらの部材を順次押抜いて積層一体化させるのである。すなわち、前記図１３におけると同様にして、まずダボ出しパイロット穴抜き工程Ｓ１において、金型Ｄ１により２個のパイロット穴８、２個の穴１２および３個のダボ穴６とこれらに対応する３個のダボ（図示せず）が、ピッチＰ毎に被加工材７に加工される。
【００４６】
次にダボ抜き工程Ｓ２においては、金型Ｄ２の選択的作動により、被加工材７の４Ｐピッチ送り毎に３個のダボ穴６が貫通加工される。内形抜き工程Ｓ３においては、金型Ｄ７によりベース部材１４およびカバー部材２４の穴２５が、貫通ダボ穴６を加工した位置に相当する位置およびその１Ｐ下流側の位置に連続して、被加工材７の送りピッチ４Ｐの間に選択的に加工される。また内形抜き工程Ｓ３において、金型Ｄ３の選択的作動により、板状部材１の内形の部分１ａが、被加工材７の送りピッチ４Ｐ毎に打抜かれる。
【００４７】
更に外形抜き工程Ｓ４においては、金型Ｄ５によりベース部材１４の外形部分、同じく金型Ｄ５により板状部材１の外形部分、金型Ｄ４により板状部材２の外形部分、および金型Ｄ５によりカバー部材２４の外形部分が、夫々金型Ｄ４，Ｄ５の選択的作動によって打抜加工され、かつ被加工材７の打抜穴にプッシュバックにより係止されて矢印方向に順送りされる。
【００４８】
最終の積層工程Ｓ５においては、まず金型Ｄ６のパンチ２３によってベース部材１４、次いで板状部材１が順に押抜かれて積層され、金型Ｄ６のパンチ２２によって板状部材２が押抜かれて、前記板状部材１と係合一体化され、最後に金型Ｄ６のパンチ２３によってカバー部材２４が押抜かれて、板状部材１，２上に積層一体化されるのである。
【００４９】
上記の発明の実施の形態においては、円形の微小寸法の穴を有する製品の例について記述したが、これに限定されず、角形、星形、楕円その他の幾何学的形状の穴を有するものであってもよく、またスリットの平面への投影輪郭形状についても、円弧状、欠円状のものに限らず、他の曲線状のもの、または直線の組合せ、あるいはこれらの組合せ形状のものでもよく、更にはその内形寸法が位置によって異なるものでもよく、要するに板状部材の端縁部の一部に形成された成形部の対向によって形成され得るものであればよい。
【００５０】
なお、上記の穴および／またはスリットが板状部材の表面に対してそれらの内形輪郭が直交するものについて記述したが、これらのほかに厚さ方向に例えばくの字状またはＳ字状に傾斜するものであってもよく、また穴および／またはスリットの内形寸法が、厚さ方向の位置によって異なるものであっても、本発明の適用が可能である。
【００５１】
また板状部材を構成する材料としては、金属材料が最も一般的であるが、非金属材料であっても、いわゆる打抜き、穴抜き等の加工によって成形され得るものであれば本発明の適用が可能である。
【００５２】
【発明の効果】
本発明は以上記述のような構成および作用であるから、下記の効果を奏することができる。
（１）板状部材の成形部の対向によって微小寸法の間隙を形成できるため、寸法精度の向上が可能であると共に、製造コストの低減が可能である。
（２）成形部の形状を選定することにより、間隙寸法が位置によって異なるようなスリットであっても、また異形の穴であっても容易に形成できる。
（３）従来のパンチ・ダイを使用する打抜加工におけるような板状部材に対する厚さ寸法の制限がないため、厚さ寸法の比較的大なる製品であっても、積層枚数を少なくすることができる。
【図面の簡単な説明】
【図１】本発明の第１の実施の形態における製品の例を示す説明図であり、（ａ）は平面、（ｂ）は（ａ）におけるＡ−Ａ線断面、（ｃ）は（ａ）におけるＢ−Ｂ線要部拡大断面、（ｄ）は（ａ）におけるＣ部拡大平面を示す。
【図２】図１における製品の積層状態を示す要部斜視図である。
【図３】本発明の第１の実施の形態における被加工材の加工態様を示す要部平面図である。
【図４】本発明の第２の実施の形態における製品の例を示す説明図であり、（ａ）は平面、（ｂ）は（ａ）におけるＤ−Ｏ−Ｄ線断面を示す。
【図５】図４における製品の積層状態を示す要部斜視図である。
【図６】本発明の第２の実施の形態における被加工材の加工態様を示す要部平面図である。
【図７】本発明の第３の実施の形態における製品の例を示す平面図である。
【図８】本発明の第３の実施の形態における板状部材の係合状態を示す斜視図である。
【図９】本発明の第４の実施の形態における製品の例を示す平面図である。
【図１０】本発明の第４の実施の形態における板状部材の係合状態を示す斜視図である。
【図１１】本発明の第５の実施の形態における製品の例を示す説明図であり、（ａ）は平面、（ｂ）は（ａ）におけるＥ−Ｅ線断面を示す。
【図１２】図１１における板状部材１，２およびベース部材１４を係合一体化させる状態を示す斜視図である。
【図１３】本発明の第５の実施の形態における被加工材の加工態様を示す説明図であり、（ａ）（ｂ）は各々被加工材の要部平面、（ｃ）は加工に使用する金型の要部平面を示す。
【図１４】本発明の第６の実施の形態における製品の例を示す説明図であり、（ａ）は平面、（ｂ）は（ａ）におけるＦ−Ｆ線断面を示す。
【図１５】図１４における夫々の部材を係合一体化させる状態を示す斜視図である。
【図１６】本発明の第６の実施の形態における被加工材の加工態様を示す説明図であり、（ａ）（ｂ）は各々被加工材の要部平面、（ｃ）は加工に使用する金型の要部平面を示す。
【符号の説明】
１，２：板状部材
３：穴
４：係合部
１０，１３：スリット
３０，３１，３２，３３：成形部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method for producing a product having a microscopic gap such as a hole having a diameter of 0.1 to 0.5 mm and / or a slit having a width dimension of 0.1 to 0.5 mm. The present invention relates to a method for manufacturing a product having a hole and / or a slit having a minute dimension by engaging and integrating a plurality of plate-like members formed by processing.
[0002]
[Prior art]
Traditionally, when manufacturing products with holes or slits, it is most commonly by machining using a drill and / or end mill. However, when machining a hole with a small dimension such as 0.1 to 0.5 mm in diameter, especially when the workpiece is a hard material or when the depth dimension exceeds 5 times the diameter. Machining is extremely difficult or, in extreme cases, machining may be impossible.
[0003]
[Problems to be solved by the invention]
On the other hand, there is a means for manufacturing a product having a minute dimension hole and / or slit as described above by laminating thin plate material members. In this case, a thin plate as a raw material is previously punched and formed into a shape corresponding to the outer contour of the product, and the holes and / or slits are punched and formed using, for example, a punch and a die. What is necessary is just to carry out lamination | stacking integration in the state which matched the position. However, the diameter of the hole or the width of the slit is usually the same as the thickness of the thin plate or limited to about 90%. It is impossible to punch by. Therefore, in order to punch and form minute dimensions of holes and / or slits, for example, 0.1 to 0.5 mm, the thickness of the raw sheet is also limited to 0.1 to 0.5 mm. Thus, in order to laminate a product having a predetermined thickness, the number of laminated layers becomes extremely large. As a result, in addition to the increase in manufacturing cost, there is a problem that positioning of the hole and / or slit becomes difficult and the dimensional accuracy is lowered.
[0004]
On the other hand, for example, laser processing or wire-cut electric discharge processing is known as a means for processing a hole or slit having a minute dimension as described above. However, these processing means require ancillary equipment such as a power source and a control means, and the entire apparatus is expensive, and the time and man-hours required for processing become large, leading to a rise in manufacturing cost. is there.
[0005]
Especially in wire-cut electrical discharge machining, wire electrodes with a diameter of 0.05 to 0.25 mm can be used, so it is possible to machine not only minute holes but also complicated curved slits. However, in order to run the wire electrode through the workpiece, it is necessary to drill a prepared hole in advance or to introduce a predetermined machining site from the edge of the workpiece. Therefore, it is impossible to machine a hole or slit that exists independently in the center of the workpiece.
[0006]
Further, in the laser processing and wire-cut electric discharge processing, a hole or slit that penetrates the workpiece can be processed, but there is a problem that a so-called bottomed non-through hole or slit cannot be processed.
[0007]
SUMMARY OF THE INVENTION An object of the present invention is to solve the above-described problems in the prior art and to provide a method that can easily manufacture a product having a microscopic hole and / or slit with high dimensional accuracy. .
[0008]
[Means for Solving the Problems]
In order to solve the above-described problems, in the present invention, a molded part formed in a shape corresponding to a cross-sectional contour of a hole and / or a slit in a part of an edge part of a plate-like member, and the edge part. Each of the first plate-like member and the second plate-like member formed by forming an engagement portion on a part of the projection portion, and each of the engagement portions projected onto a plane Same A plurality of first plate members and second plate members are formed in a single shape so as to have a concavo-convex relationship between the first plate member and the second plate member. It is formed by punching, and the first plate member and the second plate member are integrated with the molding portion facing each other and the engagement portion closely engaged with each other, and the plate member of the engagement portion is laminated. The technical means was adopted.
[0009]
In the present invention, a plurality of dowels and dowel holes are formed coaxially on the plate-like member, and the dowels and dowel holes are engaged between adjacent plate-like members to stack and integrate the plurality of plate-like members. be able to.
[0010]
In the present invention, a plurality of dowels or dowel holes are formed in the plate member, and the dowels or dowel holes are engaged with a plurality of dowel holes or dowels formed in the base member to form a single layer plate member. It can be integrated on the base member.
[0011]
Further, in the present invention, the dowels or dowel holes of the lowermost plate member may be engaged with a plurality of dowel holes or dowels formed in the base member to integrate the plural layers of plate members on the base member. it can.
[0012]
Next, in the present invention, the hoop-shaped workpiece is sequentially fed in the longitudinal direction, and a plurality of plate-like members are punched and formed on a plurality of stages, and the punched plate-like member is pushed back to form the workpiece. The plate-like member can be integrated by pushing the punched hole and sequentially punching the plate-like member at the last stage of progressive feeding of the workpiece.
[0013]
In the present invention, a hoop-shaped workpiece is fed forward in the longitudinal direction, and a base member and a plurality of plate-like members are punched and formed on a plurality of stages, and the punched back base member and plate-like members are pushed back. Thus, the base member and the plate-like member can be sequentially punched and integrated at the final stage of the progressive feeding of the workpiece.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is an explanatory view showing an example of a product according to the first embodiment of the present invention, where (a) is a plane, (b) is a cross-sectional view taken along line AA in (a), and (c) is (a). BB line principal part expanded cross section in (d) shows the C section enlarged plane in (a). In FIG. 1, reference numerals 1 and 2 denote plate-like members, which are formed into a pseudo-U shape and a pseudo-H shape, for example, by stamping a steel plate having a thickness of 1 mm.
[0015]
Reference numeral 30 denotes a molding part, which is provided in a part of the edge of the plate-like members 1 and 2 in a semicircular shape corresponding to the hole 3 having a diameter of 0.5 mm, for example. Next, 4 is an engaging part, and the projected contour on the plane is mutually formed on a part of the other edge portions of the plate-like members 1 and 2. Same as For example, it is formed in a zigzag shape so as to have one shape. The remaining edge portions of the plate-like members 1 and 2 are formed in a shape corresponding to the outer peripheral edge of the product.
[0016]
Reference numerals 5 and 6 denote dowels and dowel holes, respectively, and two are provided at the corners of the plate-like members 1 and 2, for example. In order to form such dowels 5 and dowel holes 6, for example, a punch and die having a circular cross section are used, and the penetration depth d of the punch tip is set to the thickness dimension of the plate-like member 2. It is possible to make it smaller than t. The dowels 5 and dowel holes 6 may be formed simultaneously with the punching of the plate members 1 and 2 or may be formed in a separate process from the punching of the plate members 1 and 2. In addition, in the plate-shaped members 1 and 2 which form the lowest layer, it is preferable to form the dowel 5 so as to penetrate through the dowel hole 6.
[0017]
FIG. 2 is a perspective view of a main part showing a stacked state of products in FIG. 1, and the same parts are denoted by the same reference numerals as those in FIG. In FIG. 2, the plate-like members 1 and 2 are integrated by making the respective molding parts 30 face each other and engaging the engaging parts 4. As a result, the molded part 30 is formed in the hole 3 (see FIG. 1) having a diameter of 0.5 mm, for example, and the plate-like members 1 and 2 are moved in a plane by the engagement of the zigzag engaging part 4. Is constrained and closely integrated with no gap.
[0018]
Next, if the other plate-like members 1 and 2 are placed on the plate-like members 1 and 2 and the dowels 5 are engaged with the dowel holes 6 and are crimped, the opposing surfaces are closely integrated with no gap. If a predetermined number of sheets are laminated, a product having a predetermined thickness can be manufactured. In this case, since the laminated plate-like members 1 and 2 are both formed with the same relative positions of the forming portion 30 and the engaging portion 4 with respect to the dowel 5 and the dowel hole 6, the holes formed by the forming portion 30 are formed. The inner surface of 3 is formed on the same surface in the stacking direction, and high dimensional accuracy can be ensured.
[0019]
The product laminated and integrated as described above is heated to a temperature equal to or lower than the solidus of the material forming the plate-like members 1 and 2 by applying a pressure in the vertical direction of the product in a vacuum or a protective atmosphere. Thus, when so-called diffusion welding is performed, in which diffusion is performed between the respective laminations of the plate-like members 1 and 2, the fixation and integration of the laminated products can be further improved.
[0020]
FIG. 3 is a main part plan view showing a processing mode of the workpiece in the first embodiment of the present invention, and the same portions are denoted by the same reference numerals as those in FIGS. In FIG. 3, reference numeral 7 denotes a workpiece, which uses a long hoop material, and a progressive machining apparatus (not shown) in which a plurality of punching apparatuses having punches and dies are arranged in series. ) Is intermittently pitch-fed to the constant pitch P in the direction of the arrow. The punching apparatus includes at least a dowel hole 6 and punches and dies for punching the dowels and the plate-like members 1 and 2, and nP (n is an arbitrary positive integer) in the feed direction of the workpiece 7. The operation state is controlled so that the plate-like members 1 and 2 can be punched alternately on the workpiece 7 with the pitch P.
[0021]
Next, reference numeral 8 denotes a pilot hole, which is provided on the work piece 7 on the most upstream side in the feed direction of the work piece 7 and is regularly machined at a constant pitch P interval. This is a reference hole for positioning in the machining process.
[0022]
After processing the pilot hole 8 or with the processing of the pilot hole 8, the dowel hole 6 and the dowel (not shown; see reference numeral 5 in FIG. 1 (c)) are formed, and then the lowermost layer if necessary. The dowel holes 6 corresponding to the plate-like members 1 and 2 forming the dowel are removed.
[0023]
Further, as shown in FIG. 3, the workpiece 7 is sequentially sent to the pitch P by a punching device having a punch and a die having a cross-sectional shape corresponding to the outer shape of the plate-like members 1 and 2. The plate-like members 1 and 2 are punched alternately from the material 7, and the punched plate-like members 1 and 2 are locked in the punched holes of the workpiece 7 by pushback. In the final stage, the plate-like members 1 and 2 that have been pushed back to the workpiece 7 are sequentially pushed out and engaged and stacked as shown in FIGS.
[0024]
FIG. 4 is an explanatory view showing an example of a product in the second embodiment of the present invention, where (a) is a plane, (b) is a cross-sectional view taken along the line D-O-D in (a), and the same parts are The same reference numerals as those in FIGS. 1 to 3 are used. In FIG. 4, a plate-like member 1 is punched and formed into a hollow disc shape using the same material as shown in FIG. 1, and a quarter-arc shaped slit having a width dimension of 0.5 mm, for example, at the inner peripheral edge. 9 and 10 are provided with molding portions 31 and 32 forming outer edges and linear engaging portions 4.
[0025]
Next, the plate-like member 2 is formed by punching the projected contour onto the plane in a drum shape by using a plate material having the same thickness as the plate-like member 1, and forming the inner edges of the slits 9 and 10 at the outer peripheral edge portions. The molding parts 31 and 32 and the linear engaging part 4 are provided, and the hole 11 is provided in the center part. The plate-like member 1 is provided with dowel holes 6 and dowels 5 formed equiaxially so as to face each other at an equal distance from the center.
[0026]
FIG. 5 is a perspective view of a main part showing a stacked state of products in FIG. 4, and the same portions are denoted by the same reference numerals as those in FIG. In FIG. 5, the plate-like members 1 and 2 are integrated by making the molding parts 31 and 32 face each other and engaging the engaging part 4. Thereby, for example, quarter-arc slits 9 and 10 having a width dimension of 0.5 mm are formed by the molding parts 31 and 32, and the engagement of the engaging parts 4 formed orthogonally causes the plate-like member. 1 and 2 are integrated by restricting relative movement in a plane. The lamination of the plate-like members 1 and 2 is the same as that shown in FIGS. 1 and 2. For example, the slits 9 and 10 having a width dimension of 0.5 mm and a depth dimension of 10 mm can be easily formed with high accuracy. It is.
[0027]
FIG. 6 is a main part plan view showing a processing mode of a workpiece in the second embodiment of the present invention, and the same portions are denoted by the same reference numerals as those in FIGS. In FIG. 6, dowel holes 6 and dowels (not shown) are formed on the workpiece 7 so as to address 2P. 6 is the same as that described with reference to FIG. 3 above.
[0028]
7 and 8 are a plan view showing an example of a product in the third embodiment of the present invention and a perspective view showing an engaged state of the plate-like members, respectively, and the same parts are the same as those in FIGS. This is indicated by reference numerals. 7 and 8, the plate-like members 1 and 2 are integrated with each other through the engaging portion 4 so that the thickness of the plate-like members 1 and 2 is reduced to 1 mm (for example, 1 mm). It is a means for forming a hole 3 having a corresponding axial dimension of a minute diameter of 0.5 mm, for example, and the engagement portion 4 can be joined, for example, by laser welding or the like, if necessary, to improve the fixation and integration. . Reference numeral 12 denotes a through hole which forms a mounting hole for the plate-like members 1 and 2 and is molded together with the plate-like members 1 and 2 or separately.
[0029]
9 and 10 are a plan view showing an example of a product in the fourth embodiment of the present invention and a perspective view showing an engaged state of plate-like members, respectively, and the same parts are the same as those in FIGS. This is indicated by reference numerals. 9 and 10 are basically the same in configuration and operation as those shown in FIGS. 7 and 8, although the shapes of the plate-like members 1 and 2 are different.
[0030]
FIG. 11 is an explanatory view showing an example of a product according to the fifth embodiment of the present invention, in which (a) is a plane, (b) is a cross-sectional view taken along line EE in (a), and the same part is the above-mentioned figure. 9 and the same reference numerals as in FIG. In FIG. 11, reference numeral 13 denotes a notch-shaped slit, which is formed by facing the forming portion 33 provided on the plate-like members 1 and 2. The engaging portion 4 is formed in a T shape, for example. Reference numeral 14 denotes a base member, which is formed in a disk shape. The plate members 1 and 2 are placed and integrated on the base member 14 via the dowel hole 6 and the dowel 5, and the base member 14 is below the slit 13. It is blocked by.
[0031]
FIG. 12 is a perspective view showing a state in which the plate-like members 1 and 2 and the base member 14 in FIG. 11 are engaged and integrated, and the same parts are denoted by the same reference numerals as in FIG. In FIG. 12, the plate-like member 1 is first placed and integrated on the base member 14 via the dowel hole 6 and the dowel 5 (not shown, see FIG. 11B), and then the plate-like member 2 is plate-like. The member 1 and the base member 14 are engaged and integrated. In this case, the plate-like member 2 is engaged and integrated with the plate-like member 1 and the base member 14 by the engaging portion 4, the dowel hole 6 and the dowel 5, and the lower portion is closed by the molding portion 33. A slit 13 is formed. In addition, after engaging the plate-like members 1 and 2 in advance, they may be engaged on the base member 14.
[0032]
11 and 12, an example in which the single-layer plate-like members 1 and 2 are placed and engaged on the base member 14 has been described. The plate-like members 1 and 2 are shown in FIGS. 4 and 5. It can also be formed in such a multilayer structure.
[0033]
FIG. 13 is an explanatory view showing a processing mode of a workpiece in the fifth embodiment of the present invention, wherein (a) and (b) are planes of main parts of the workpiece, and (c) is used for processing. The main part plane of a metal mold | die is shown, and the same part is shown with the same referential mark as the said FIG. 11 and FIG. 13 (a) and 13 (b), the workpiece 7 made of a long hoop material is intermittently pitched to a predetermined pitch P in the direction of the arrow, and a doweling pilot hole punching step S1 and a dowel punching step S2 are performed. A predetermined process is performed while sequentially passing through the inner shape punching step S3, the outer shape punching step S4, and the stacking step S5, and the product shown in FIG. 11 is manufactured. Although the workpiece 7 is shown in a state of being divided into two parts due to space limitations, it is a continuous long hoop material, and the portion of the inner shape removing step S3 is shown in an overlapping manner.
[0034]
In FIG. 13 (c), D1 to D6 are dies, respectively, and are fed into a progressive feed apparatus (not shown) at a pitch of nP (n is an arbitrary positive integer) in the feed direction of the workpiece 7. Arranged to perform predetermined processing in each of the aforementioned steps. First, the mold D1 has punches 15 and 16 for processing the pilot holes 8 and through holes 12, punches 17 for processing the dowel holes 6 and dowels (not shown), and dies (not shown) corresponding to these punches. Is provided. The die D2 is provided with a punch 18 and a die (not shown, the same applies hereinafter) at a position corresponding to the punch 17 of the die D1, and is processed to penetrate the dowel hole 6 of the base member 14 shown in FIG. Do.
[0035]
Next, the die D3 is provided with a punch 19 and a die for punching the forming portion 33 and the engaging portion 4 of the plate-like member 1 shown in FIG. Further, the molds D4 and D5 correspond to punches 20 and 21 for punching out and pushing back the outer shape of the plate-like member 2 and the plate-like member 1 and the base member 14 shown in FIG. 12, and these punches, respectively. A die is provided. The die D6 is provided with punching punches 22 and 23 and a die having a smooth plane so that the bottom dead center position of the punches 22 and 23 can be adjusted. It is preferable to be operable. In addition, the codes | symbols D1-D6 in Fig.13 (a) (b) have shown the operation position of each metal mold | die D1-D6 of (c).
[0036]
With the above configuration, first, in the dowel removal pilot hole punching step S1, the two pilot holes 8, two through holes 12, five dowel holes 6 and dowels (not shown, FIG. ) Is processed into the workpiece 7 for each pitch P. This pilot hole 8 becomes a reference hole for the processing position by the engagement of a pilot pin provided in the mold in the subsequent processing steps.
[0037]
Next, in the dowel removal step S2, five dowel holes 6 are perforated by the die D2 for each feed pitch 3P of the workpiece 7. This dowel hole 6 is for the base member 14 in FIG. 12, and is for preventing the dowel from protruding on the lower surface thereof. This doweling step S2 is performed by selectively operating the mold D2 for each feed pitch 3P of the workpiece 7.
[0038]
In the inner shape punching step S3, the inner shape portion of the plate-like member 1 in FIGS. 11 and 12 is punched by the die D3. That is, the punched portion 19 of the die D3 and the die 1 are used to punch the molded portion 33 and the engaging portion 4 so that the portion 1a is dropped downward through the die and discharged out of the system. In this inner die cutting step S3, the punching process is performed for each feed pitch 3P of the workpiece 7 by the selective operation of the mold D3.
[0039]
Further, in the outer shape punching step S4, the die portions D4 and D5 are used to punch out the outer portions of the plate-like members 1 and 2 and the base member 14 in FIG. 12 and push back the punched portions to the workpiece 7. It is. That is, the molding part 33 and the engaging part 4 which are the outer parts of the plate-like member 2 in FIGS. 11 and 12 are processed and punched by the mold D4, and then pushed back into the punching hole of the workpiece 7. Locked.
[0040]
Next, at the position corresponding to the portion 1a in which the workpiece 7 is punched by the die D5, the outer portion of the plate-like member 1 in FIG. 11 and FIG. 12 is punched and pushed back, and the dowel removal of the workpiece 7 is performed. At the position corresponding to the portion where the step is performed, the outer portion of the base member 14 in FIGS. 11 and 12 is punched out and pushed back. The operation of the mold D4 is performed at every feed pitch 3P of the workpiece 7, and the operation of the mold D5 is stopped once every feed pitch 3P of the workpiece 7.
[0041]
In the final stacking step S5, a portion corresponding to the base member 14 is first punched out by the punch 23 of the mold D6, and then a portion corresponding to the plate-like member 1 is punched out by the same punch 23. As shown in FIG. 11B, the dowels 5 of the plate-like member 1 are engaged and integrated with the dowel holes 6 of the base member 14 as shown in FIG. Next, the plate-like member 2 is pushed out by the punch 22 of the die D6, and through the plate-like member 2 and the engaging portion 4 as shown in FIG. 11, and through the base member 14, the dowel 5 and the dowel hole 6. They are engaged together. In this case, the outer dimensions of the punching punches 22 and 23 are preferably slightly smaller than the outer dimensions of the plate-like member 2 and the outer dimensions of the plate-like member 1 and the base member 14 shown in FIG.
[0042]
FIG. 14 is an explanatory view showing an example of a product according to the sixth embodiment of the present invention, in which (a) is a plane, (b) is a cross-sectional view taken along line FF in (a), and the same part is the above-mentioned figure. 11 is denoted by the same reference numerals. In FIG. 14, reference numeral 24 denotes a cover member. Like the base member 14, the plate members 1 and 2 are formed in a hollow disk shape having a hole 25 at the center and are integrally engaged with each other. 24 and the base member 14 are sandwiched and integrated from above and below, and formed so that the slit 13 faces the hole 25, and basically has the same configuration as that shown in FIG. .
[0043]
FIG. 15 is a perspective view showing a state in which the respective members in FIG. 14 are engaged and integrated, and the same parts are denoted by the same reference numerals as in FIG. In FIG. 15, the plate-like member 1 is first placed and integrated on the base member 14 via the dowel hole 6 and the dowel 5 (not shown, see FIG. 14 (b)), and then the plate-like member 2 is attached to the plate. The cover member 24 is mounted and integrated on the plate-like members 1 and 2, and the cover member 24 is mounted on the plate-like members 1 and 2. Thereby, since the upper and lower surfaces of the engaging portions 4 of the plate-like members 1 and 2 are sandwiched between the base member 14 and the cover member 24, the free end of the plate-like member 2 is molded without moving up and down. The minute width dimension of the slit 13 formed by the portion 33 can be ensured with high accuracy. Of course, the plate-like members 1 and 2 may be engaged and integrated in advance when the respective members are engaged.
[0044]
FIGS. 16A and 16B are explanatory views showing a processing mode of the workpiece in the sixth embodiment of the present invention, wherein FIGS. 16A and 16B are planes of main parts of the workpiece, respectively, and FIG. The main part plane of a metal mold | die is shown, and the same part is shown with the same referential mark as the said FIG. 13 thru | or FIG. In FIG. 16, a mold D7 includes a punch 26 for punching holes 25 in the base member 14 and the cover member 24, and a die paired therewith. The mold D5 is for punching out and pushing back the outer shapes of the plate member 1, the base member 14, and the cover member 24.
[0045]
14 and 15 is punched from the workpiece 7 by progressive feeding, and is locked in the punched hole of the workpiece 7 by pushback. These members are sequentially pushed out and integrated into a stack. That is, in the same manner as in FIG. 13, first, in the doweling pilot hole punching step S1, two pilot holes 8, two holes 12 and three dowel holes 6 and 3 corresponding to these are formed by the mold D1. A number of dowels (not shown) are processed into the workpiece 7 for each pitch P.
[0046]
Next, in the dowel removal step S2, three dowel holes 6 are perforated for each 4P pitch feed of the workpiece 7 by selective operation of the mold D2. In the inner shape removal step S3, the hole 25 of the base member 14 and the cover member 24 is continuously processed by the mold D7 at a position corresponding to the position where the through dowel hole 6 is processed and a position 1P downstream thereof. It is selectively processed during the feed pitch 4P of the material 7. Further, in the inner shape cutting step S3, the inner shape portion 1a of the plate-like member 1 is punched at every feed pitch 4P of the workpiece 7 by the selective operation of the mold D3.
[0047]
Further, in the outer shape extracting step S4, the outer shape portion of the base member 14 is covered by the mold D5, the outer shape portion of the plate-like member 1 is also covered by the die D5, the outer shape portion of the plate-like member 2 is covered by the die D4, and the die D5 is covered. The outer portions of the member 24 are punched by selective actuation of the dies D4 and D5, respectively, are locked by pushback in the punched holes of the workpiece 7, and are sequentially fed in the arrow direction.
[0048]
In the final stacking step S5, first, the base member 14 and then the plate-like member 1 are sequentially punched and stacked by the punch 23 of the die D6, and the plate-like member 2 is punched and punched by the punch 22 of the die D6. The plate member 1 is engaged and integrated, and finally, the cover member 24 is pushed out by the punch 23 of the die D6, and the plate members 1 and 2 are laminated and integrated.
[0049]
In the above embodiment of the present invention, an example of a product having a circular minute hole has been described. However, the present invention is not limited to this, and a hole having a square shape, a star shape, an ellipse or other geometric shapes is used. Also, the projected contour shape on the plane of the slit is not limited to the arc shape or the oval shape, but may be another curved shape, a combination of straight lines, or a combination of these shapes. Further, the inner shape dimension may be different depending on the position, and in short, any shape can be used as long as it can be formed by facing the forming part formed at a part of the edge part of the plate-like member.
[0050]
In addition, although the said hole and / or slit described what the inner shape outline of them orthogonally crossed with respect to the surface of a plate-shaped member, in addition to these, for example in a dogleg shape or S shape in thickness direction The present invention can be applied even if it is inclined and the inner dimension of the hole and / or slit differs depending on the position in the thickness direction.
[0051]
Further, as a material constituting the plate-like member, a metal material is the most common, but even if it is a non-metallic material, the present invention can be applied as long as it can be formed by processing such as so-called punching and punching. Is possible.
[0052]
【The invention's effect】
Since the present invention has the configuration and operation as described above, the following effects can be obtained.
(1) Since gaps of minute dimensions can be formed by facing the molded portions of the plate-like member, it is possible to improve dimensional accuracy and reduce manufacturing costs.
(2) By selecting the shape of the forming part, it can be easily formed even if it is a slit whose gap size varies depending on the position or an irregularly shaped hole.
(3) Since there is no limitation on the thickness of the plate-like member as in punching using a conventional punch and die, the number of laminated sheets should be reduced even for products with a relatively large thickness. Can do.
[Brief description of the drawings]
BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is an explanatory diagram illustrating an example of a product according to a first embodiment of the present invention, where (a) is a plane, (b) is a cross-sectional view taken along line AA in (a), and (c) is (a) BB line main part expanded cross-section in (), (d) shows the C section enlarged plane in (a).
2 is a perspective view of a main part showing a stacked state of products in FIG. 1. FIG.
FIG. 3 is a plan view of relevant parts showing a processing mode of a workpiece in the first embodiment of the present invention.
FIGS. 4A and 4B are explanatory diagrams illustrating an example of a product according to a second embodiment of the present invention, where FIG. 4A is a plan view, and FIG. 4B is a cross-sectional view taken along line D-O-D in FIG.
5 is a perspective view of a main part showing a stacked state of products in FIG. 4. FIG.
FIG. 6 is a plan view of relevant parts showing a processing mode of a workpiece in a second embodiment of the present invention.
FIG. 7 is a plan view showing an example of a product in the third embodiment of the present invention.
FIG. 8 is a perspective view showing an engaged state of plate-like members in a third embodiment of the present invention.
FIG. 9 is a plan view showing an example of a product in the fourth embodiment of the present invention.
FIG. 10 is a perspective view showing an engaged state of plate-like members according to the fourth embodiment of the present invention.
11A and 11B are explanatory views showing an example of a product according to a fifth embodiment of the present invention, where FIG. 11A is a plan view, and FIG. 11B is a cross-sectional view taken along line EE in FIG.
12 is a perspective view showing a state in which the plate-like members 1 and 2 and the base member 14 in FIG. 11 are engaged and integrated. FIG.
FIGS. 13A and 13B are explanatory views showing a processing mode of a workpiece in the fifth embodiment of the present invention, wherein FIGS. 13A and 13B are planes of main parts of the workpiece, respectively, and FIG. The main part plane of the metal mold | die to perform is shown.
14A and 14B are explanatory views showing an example of a product according to a sixth embodiment of the present invention, where FIG. 14A is a plan view, and FIG. 14B is a cross-sectional view taken along line FF in FIG.
15 is a perspective view showing a state in which the respective members in FIG. 14 are engaged and integrated. FIG.
FIGS. 16A and 16B are explanatory views showing a processing mode of a workpiece in the sixth embodiment of the present invention, wherein FIGS. 16A and 16B are planes of main parts of the workpiece, respectively, and FIG. The main part plane of the metal mold | die to perform is shown.
[Explanation of symbols]
1, 2: Plate-shaped member
3: Hole
4: Engagement part
10, 13: Slit
30, 31, 32, 33: Molding part

Claims

Each formed by forming a molding part formed in a shape corresponding to the cross-sectional contour of the hole and / or slit in a part of the edge part of the plate-like member and an engaging part in the other part of the edge part between the first plate member and the second plate-shaped member and a, and the engagement portion of the each projection contour of the plane at the same shape first plate-like member and the second plate-like member The first plate member and the second plate member are formed by punching a plurality of first plate members and second plate members. With the molded part facing each other and the engaging part closely engaged with each other,
A manufacturing method of a product having a minute size hole and / or slit characterized by laminating plate members of engaging portions.

A plurality of dowels and dowel holes are formed coaxially on a plate-like member, and the dowels and dowel holes are engaged between adjacent plate-like members to laminate and integrate the plurality of plate-like members. The manufacturing method of the product which has a micro dimension hole and / or slit of Claim 1.

A plurality of dowels or dowel holes are formed in the plate member, and these dowels or dowel holes are engaged with a plurality of dowel holes or dowels formed in the base member so that one layer of the plate member is integrated on the base member. The manufacturing method of the product which has a micro dimension hole and / or slit of Claim 1 characterized by the above-mentioned.

The dowels or dowel holes of the lowermost plate member are engaged with a plurality of dowel holes or dowels formed in the base member to integrate the plural layers of plate members on the base member. 3. A method for producing a product having a microscopic hole and / or slit according to 2.

The hoop-shaped workpiece is fed forward in the longitudinal direction, a plurality of plate-like members are punched and formed on a plurality of stages, and the punched plate-like members are locked in the punched holes of the workpiece by pushback. 3. A method for producing a product having microscopic holes and / or slits according to claim 1 or 2, wherein the plate-like members are sequentially pushed out and integrated in a final feed progressive stage of the workpiece.

The hoop-shaped workpiece is sequentially fed in the longitudinal direction, and the base member and the plurality of plate-like members are punched and formed on a plurality of stages, and the punched base member and the plate-like member are pushed back to form the workpiece. 5. A micro-sized hole and / or slit according to claim 3 or 4, wherein the base member and the plate-like member are sequentially punched and integrated in the final feed stage of the workpiece, which are locked in the punched hole. A method of manufacturing a product having