JP3568217B2 - Management method of component supply device information - Google Patents

Management method of component supply device information Download PDF

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Publication number
JP3568217B2
JP3568217B2 JP16827693A JP16827693A JP3568217B2 JP 3568217 B2 JP3568217 B2 JP 3568217B2 JP 16827693 A JP16827693 A JP 16827693A JP 16827693 A JP16827693 A JP 16827693A JP 3568217 B2 JP3568217 B2 JP 3568217B2
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Japan
Prior art keywords
supply device
component supply
component
information
electronic
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JP16827693A
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JPH0730288A (en
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茂樹 今福
孝 野山
典晃 吉田
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Panasonic Corp
Panasonic Holdings Corp
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Panasonic Corp
Matsushita Electric Industrial Co Ltd
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Description

【0001】
【産業上の利用分野】
本発明は、電子部品を回路基板に自動的に実装する電子部品実装機に関する。
【0002】
【従来の技術】
電子部品実装機における部品供給装置情報の管理方法について、従来の技術を図6、図7、図8、図9および図10を用いて説明する。
【0003】
電子部品実装機に供給される電子部品の荷姿として、特に表面実装部品においては、図6に示すように、電子部品1を紙またはプラスチックなどのテープ2に一定間隔で一列に収め、そのテープ2をリール3に巻いた荷姿が一般的である。このリールを電子部品実装機に搭載する場合、図7に示すような部品供給装置4を用いる。部品供給装置4の仕組みは、取り付けられたリール5からテープ6が引き出され、テープ上の電子部品は吸着位置7で電子部品実装機のノズル8に吸着されるようになっている。また、電子部品が吸着された後レバー9を押し下げることにより、テープ6が電子部品の収納間隔10だけ送り出され、次の電子部品が吸着位置7に位置するような機構になっている。
【0004】
次に、電子部品実装機は図8に示すような構成になっている。電子部品実装機の部品供給部11は複数の部品供給装置12を搭載することができ、これらの中から任意の部品供給装置12を選択し、ノズル13が電子部品を一個ずつ吸着する。また、ノズル13は鉛直な回転軸をもつ回転体14に複数取り付けられており、この回転体14は矢印Aの方向に回転する。この回転にしたがってノズル13はノズル15の位置まで移動するとともに、回路基板16上に下降し、電子部品を実装する。
【0005】
ところで、ノズルが電子部品を吸着する際、まれに電子部品を吸着できない場合や、吸着しても電子部品の姿勢が正常でないなどの異常状態が発生する。図9において、(a)は正常な吸着状態、(b)は電子部品を吸着しない場合、(c)は電子部品の姿勢が異常な場合を示している。このような吸着状態を検査するための一つの方法は、これらの各状態についてノズル17と電子部品18を横方向から見てその下端の高さを測定することである。図9のh1,h2,h3は、それぞれ(a),(b),(c)の各状態におけるノズルと電子部品の下端の高さである。正常な高さh1に比べて、電子部品を吸着していない場合の高さh2は大きく、また電子部品の姿勢が異常である場合の高さh3は小さい。よって、h1に対してある程度の誤差Δhを考慮して、測定した高さh1+Δhより大きい場合、およびh1−Δhより小さい場合は、なんらかの吸着異常であると判定できる。実際にこのような測定を行う場合は、図10に示したような一次元光センサ20を用いて、投光側21から発せられた光がノズル23や電子部品24でさえぎられる高さhを受光側22で検出するなどの方法をとる。
【0006】
また、これとは別にノズルの下方からカメラなどを用いて吸着されている電子部品の姿勢を撮影し、電子部品の水平方向の位置および傾きが所定の範囲に収まっていない場合、および電子部品の寸法があらかじめ設定されたデータと異なる場合を、異常状態とする場合もある。電子部品実装機では、このような電子部品の異常状態や未吸着を回路基板への実装に先だって判定するため、以上述べたような一次元光センサやカメラなどの検出機構を装備することが一般的である。
【0007】
さて従来より電子部品実装機では、以上に述べたような異常状態および未吸着などの回数を部品供給装置ごとに集計し、部品供給装置情報としてユーザが確認できるようになっているものが多い。その方法として、第一に電子部品実装機にCRTなどの表示装置を取付けこれにその情報を表示する方法、第二に電子部品実装機にプリンタを接続し印刷する方法、第三に電子部品実装機に磁気ディスク装置などの記憶装置を接続し情報を書き込む方法、第四に電子部品実装機に上位コンピュータを接続し情報を上位コンピュータ側で保存する方法などが、従来より行われてきた。
【0008】
このようにして電子部品実装機から外部媒体にアウトプットされた部品供給装置情報は、部品供給装置から取り出された電子部品の異常状態発生数を部品供給装置単位に集計しているため、部品供給装置の作動不良、寸法不良、電子部品実装機における部品供給装置位置の設定条件、および部品供給装置に搭載した電子部品の品種の誤りなど、部品供給装置単位で発生し得る不良状態の検出に使用されてきた。
【0009】
【発明が解決しようとする課題】
しかしながら、従来の部品供給装置情報は上記従来例のいずれの形態をとっても部品供給装置とは独立に管理されるため、ある特定の部品供給装置に相当する情報をその部品供給装置情報の中から抽出しようとすると、以下のような困難が生じる。
【0010】
まず第一に、電子部品実装機においては生産する回路基板の品種切り替えの際に実装する電子部品の種類が変わるため、それまでセットされていた部品供給装置を取り外し、次に生産する回路基板に使用する部品を搭載した部品供給装置をセットし直す必要がある。このような場合、どの部品供給装置が、どのような部品を搭載して、電子部品実装機のどの位置にセットされていたかを正確に記録していないと、集計した部品供給装置情報を利用することができない。また、部品供給装置情報も回路基板の品種が変わる度に必ずアウトプットしなければならない。このような管理は従来電子部品実装機を操作する人が行っており、回路基板の品種切り替えが頻繁に発生する場合には、集計もれが発生したり、管理が煩雑となるため実際には部品供給装置情報が活用されないままになってしまうという問題があった。
【0011】
第二に、同一の回路基板を生産している間でも、部品供給装置に搭載した電子部品の部品切れに備えるため、一般に同一の電子部品を搭載した部品供給装置を複数用意している場合が多い。電子部品実装機が部品供給装置情報を管理する場合、同一の部品供給装置取り付け位置に複数の部品供給装置が交互に取り付けられると、集計した部品供給装置情報はこれらの部品供給装置を使用している間の合計値となり、個々の部品供給装置について個別の情報を得ることはできない。そのため、ある特定の部品供給装置に不良がある場合に、部品供給装置情報から不良の部品供給装置を特定することができないという問題もあった。
【0012】
本発明は上記問題を解決するもので、電子部品実装機の部品供給装置に関する品質情報を各部品供給装置ごとに正確かつ容易に管理する部品供給装置情報の管理方法を提供することを目的とする。
【0013】
【課題を解決するための手段】
上記課題を解決するために、本発明の第1の方法は、複数の電子部品を搭載可能でかつ電子部品を一定個数ずつ供給するとともに、情報記憶手段を一体に付設した部品供給装置と、この部品供給装置を一個または複数個搭載するとともに、あらかじめ定められた動作プログラムによって指定された部品供給装置から指定された順序で電子部品を取り出す部品運搬手段と、部品運搬手段により取り出された電子部品の有無および異常状態を検査する部品検査手段とを有する電子部品実装機において、部品検査手段による検査結果を各部品供給装置単位で集計し記憶する部品供給装置情報保持手段と、個々の部品供給装置に付設した前記情報記憶手段に情報を書き込む書き込み手段を設け、部品供給装置情報保持手段に記憶された情報のうち所定の条件を満たす部品供給装置に関する情報を連続して所定回数部品無し状態となる部品切れのときに書き込み手段により当該部品供給装置に付設した情報記憶手段に書き込み、管理するものである。
【0014】
本発明の第2の方法は、第1の方法に加えて、部品供給装置情報をもとに部品供給装置の良否判定を行う部品供給装置判定手段を電子部品実装機に備え、部品供給装置判定手段で判定された部品供給装置良否情報のうち、所定の条件を満たす部品供給装置に関する情報を書き込み手段により当該部品供給装置に付設した情報記憶手段に書き込み管理するものである。
【0015】
本発明の第3の方法は、第1の方法に加えて、部品供給装置に付設した情報記憶手段に対し部品供給装置情報の読み出しおよび書き込みをする読み書き手段と、これにより読み出した部品供給装置情報をもとに部品供給装置の良否判定を行う部品供給装置判定手段とを電子部品実装機とは独立に備え、この部品供給装置判定手段で判定された部品供給装置良否情報を読み書き手段により当該部品供給装置に付設した情報記憶手段に書き込み、管理するものである。
【0016】
さらに、これらの管理方法は、各々の部品供給装置に固有な識別名を部品供給装置情報に加え、各々の部品供給装置に一体に付設した情報記憶手段に書き込み管理するものである。
【0017】
【作用】
上記構成により、まず、電子部品実装機に一個または複数個搭載された部品供給装置のうち、動作プログラムによって指定された部品供給装置から、部品運搬手段が電子部品を取り出し、次いで、部品検査手段が部品運搬手段により取り出された電子部品の有無および異常状態を検査し、部品検査手段による検査結果を部品供給装置情報保持手段に各部品供給装置単位で集計し記憶する。このような工程が動作プログラムに指定された順序に基づいて順次実行された後、所定の条件を満たした部品供給装置に対し、部品供給装置情報保持手段に記憶された当該部品供給装置に関する情報を、書き込み手段を用いて当該部品供給装置に付設した情報記憶手段に書き込み、管理する。
【0018】
さらに、部品供給装置判定手段を電子部品実装機に備えることにより、電子部品実装機が部品供給装置情報保持手段を用いて保持している情報をもとに、部品供給装置判定手段が当該部品供給装置に関する良否を判定する。これにより、部品供給装置情報保持手段の情報だけでなく、当該部品供給装置の良否情報をも、書き込み手段を用いて当該部品供給装置に付設した記憶手段に書き込み、管理することができる。
【0019】
さらには、部品供給装置に関する情報を書き込まれた情報記憶手段に対し、電子部品実装機とは独立に備えられた読み書き手段を用いてその部品供給装置に関する情報を読み出し、次いで電子部品実装機とは独立に備えられた部品供給装置判定手段がその情報をもとに部品供給装置の良否判定を行い、これによって得られた部品供給装置良否情報を読み書き手段を用いて当該部品供給装置に付設した記憶手段に書き込み、管理する。この読み書き手段と部品供給装置判定手段は電子部品実装機とは独立に備えられているため、電子部品実装機によって使用された部品供給装置に対し、電子部品実装機から取り外して上記作用を行うことができる。
【0020】
また、各々の部品供給装置に固有な識別名を部品供給装置情報に加え、各々の部品供給装置に一体に付設した情報記憶手段に書き込み管理することにより、部品供給装置情報を各部品供給装置に付設した情報記憶手段より読み出して部品供給装置とは独立に管理する場合に、管理されている情報と部品供給装置とを一対一に対応させることができる。
【0021】
【実施例】
以下本発明の一実施例を図面に基づいて説明する。
図1は本発明の第1の実施例の部品供給装置情報の管理方法を実施するための装置を示す構成図である。本実施例に用いる電子部品は、従来例と同様に図6のようにテープに収められ、そのテープをリールに巻いたものを用いる。また、部品供給装置の基本構成は従来例と同様に図7のような構成をとるが、本実施例においては図1に示すように情報記憶手段31を部品供給装置32に一体に付設する。このような情報記憶手段を一体に付設した部品供給装置は、特開平04−129300号公報において部品供給装置として示されたものと類似の機構を持つ。ただし特開平04−129300号公報との違いは、取出検出部が不要なことと、記憶手段に記憶させる内容が部品搭載数量ではなく部品検査手段による検査結果の集計となることである。
【0022】
図1において電子部品実装機の基本構成は従来例と同様で、部品供給部33、ノズル34および回転体35を有する構造である。また、部品供給部33は部品供給装置32の並設方向Bに往復移動可能な構成とし、これによってノズル34が所定の位置にあるときに、所望の部品供給装置32がノズル34の真下に位置するよう調整することができる。部品供給ごとの部品供給部33の位置は、あらかじめ設定された動作プログラム36によって定められ、動作プログラム36の設定に基づいて、位置決め装置37がモータ38を制御して部品供給部33を位置決めする。このように、電子部品実装機の構成要素である、部品供給部33、ノズル34、回転体35、位置決め装置37およびモータ38によって、部品運搬手段が実現される。
【0023】
本実施例では、電子部品実装機は上記の構成に加えて、部品検査手段として機能する一次元光センサ39、部品供給装置情報保持手段40、部品供給装置判定手段41、書き込み手段42を備える。ただし、部品供給装置判定手段41は、後述する本発明の第2の実施例の場合に必要である。まず、部品供給装置情報保持手段40は、一次元光センサ39の検査結果を部品供給装置別に保持するものであり、部品供給が行われ、次いでその部品の部品検査を行われる度に、それ以前の情報に新たな情報を積算した値を保持する。また、部品供給装置判定手段41は、部品供給装置情報保持手段40の情報をもとに、それぞれの部品供給装置の良否を決定するものである。また、書き込み手段42は、特開平04−129300号公報において部品装着機に備えられた受送信部と同様なものであって、部品供給装置情報保持手段40および部品供給装置判定手段41から得た情報を、該当する部品供給装置に付設された情報記憶手段31に書き込む機能を有する。ただし書き込みの際は、該当する部品供給装置を書き込み手段42の位置と合わせることが必要であるから、部品供給部33を所定の位置に移動させてから書き込みを行う。
【0024】
次に、部品供給装置情報の処理に着目して、本実施例の電子部品実装機の動作を図2の流れ図および図4の部品供給装置情報を用いて説明する。まず、部品検査手段の検査結果は、正常、部品無し、部品姿勢異常の三状態とする。これらは、それぞれ図9の(a)、(b)および(c)の状態に相当する。また、書き込み手段が情報記憶手段に情報を書き込む条件を、その部品供給装置で部品切れが発生したときと設定する。また、部品切れの判定条件は、その部品供給装置からの部品供給を部品検査手段を用いて検査した結果が、所定回数連続して部品なしと判定されたときとする。なお、説明の簡単化のため、図2の流れ図は一個の部品供給装置からの部品供給を想定して作成しているが、複数の部品供給装置から部品供給する場合でも、部品供給装置情報の計算および部品供給装置判定をそれぞれの部品供給装置に関して別々に行うだけであり、処理そのものは同様である。また、図4に示す部品供給装置情報には、各部品供給装置ごとに識別名、供給部品数、部品無し数、部品姿勢異常数および部品供給装置良否が保持されている。ただし、部品供給装置良否は後述する本発明の第2の実施例の場合に必要であり、識別名は管理されている情報と部品供給装置とを一対一に対応させる場合に必要である。
【0025】
図2の流れ図において、工程51で部品供給が行われた後、工程52で当該部品供給装置の部品供給回数に、供給された電子部品の数として1を加算する。次いで、工程53で一次元光センサによる部品検査を行い、その結果は図4に示すような正常、部品無しおよび部品姿勢異常の三状態のいずれかに判定される。ここで、正常ならば工程57で回路基板への電子部品の実装が行われる。また、部品姿勢異常ならば、工程54で当該部品供給装置の部品姿勢異常回数に1が加算され、工程56において電子部品の廃棄が行われる。また、部品無しならば、工程55において当該部品供給装置の部品無し回数に1が加算された後、部品切れであるかを確認するため、工程58において当該部品供給装置からの部品供給で連続して所定回数部品無し状態が連続しているかを検査する。ここで、所定回数に達していないならばそのまま部品実装を放棄するが、所定回数に達しているならば、工程59において、当該部品供給装置に付設された情報記憶手段に対し、電子部品実装機に付設された書き込み手段が書き込み可能な位置になるよう、部品供給部を移動させる。次いで、工程60において当該部品供給装置の部品供給装置情報をその情報記憶手段に書き込む。ここで、情報記憶手段への書き込みを部品切れのタイミングだけで行うのは、電子部品実装機の稼働をできるだけ止めないようにするため、必ず電子部品実装機が停止する部品切れの時間を用いて上記の書き込みを行うためである。また、ここで部品切れした部品供給装置の交換または部品補充が行われるので、工程61において当該部品供給装置に関する部品供給装置情報の初期化を行う。この後、工程62において部品補充の終了を待ち、部品実装を再開する。以上で、単一部品に対する処理は終了である。これらの処理を定められた動作プログラム通りに実行していくため、工程63において動作プログラムの終了判定を行い、終了になるまで上記処理を繰り返す。以上示したような方法により、本実施例は、その部品供給装置から供給された電子部品の品質情報を、部品供給装置と一体に管理することができる。
【0026】
図3は本発明の第2の実施例の部品供給装置情報の管理方法の要部を示す流れ図である。図2において、(a),(b)および(c)のブロックは、第2の実施例において、第1の実施例に追加する部分であり、それぞれの詳細は、図3の(a),(b)および(c)に示してある。図3(a)は、部品供給装置の良否判定手段の動作を説明したものである。工程71では、図1に示す部品供給装置判定手段41の良否判定のための所定の条件として式(1)に示される部品供給不良率を用いて、各部品供給装置ごとに良否判定を行っている。
【0027】

Figure 0003568217
ここで部品供給不良率が所定の値以上あれば、工程72において部品供給装置の供給装置良否を不良と設定し、所定の値以下であれば工程73において不良の設定を取り消す。ここで、一旦不良と設定したものを取り消すのは、電子部品実装機の生産開始直後に供給不良が集中したとしても、全般として供給不良率が低ければ部品供給装置は不良とはいえないためである。また、図3(b)に示すように、部品供給装置情報を情報記憶手段に書き込む際に、工程74において供給装置良否も併せて書き込むようにする。次いで、図3(c)に示すように、部品供給装置情報を初期化する際に、工程75において供給装置良否も併せて良に初期化する。以上に示したような方法により、本実施例は、部品供給装置の良否情報を部品供給装置と一体に管理することができる。
【0028】
図5は、本発明の第3の実施例の部品供給装置情報の管理方法を実施するための装置を示す構成図である。図5において、部品供給装置81に付設された情報記憶手段82より、書き込み手段83を用いて部品供給装置情報を読み出し、第2の実施例の部品供給装置判定手段41と同様な判定基準の部品供給装置判定手段84を電子部品実装機とは独立に設け、これによって部品供給装置の良否を判定する。次いで、この良否情報を読み書き手段83を用いて情報記憶手段82に書き込むことにより、部品供給装置の良否情報を部品供給装置と一体に管理することができる。
【0029】
なお、第1の実施例では、部品検査手段より得られる情報として部品供給不良率および部品無し率などを部品供給装置情報に加えてもよい。あるいは部品検査手段にカメラを使用した場合には、平均部品ずれ量、平均部品傾き角および部品検出不可数などの情報を部品供給装置情報に加えてもよい。また、第2および第3の実施例では、良否判定手段の判定基準として、部品供給不良が連続して発生した回数が所定回数を超えたかを用いてもよい。また、単純に良か不良かだけでなく、部品供給装置情報の各値を変数として、特定の関数を用いて良否評価値を導出し、これを部品供給装置の良否情報としてもよい。
【0030】
【発明の効果】
以上のように本発明の第1の管理方法によれば、ある特定の部品供給装置に関する部品供給装置情報を得ようとする場合、従来の部品供給装置情報が当該部品供給装置とは独立に管理されるのに対し、部品供給装置情報が当該部品供給装置と一体に管理されるため、以下の効果を得ることができる。
【0031】
まず第一に、生産する回路基板の品種切り替えの際に、集計した部品供給装置情報を利用するために、電子部品実装機に各部品供給装置がどのような配置でセットされていたかを正確に記録する必要がなくなる。また、部品供給装置情報も回路基板の品種が変わる度にアウトプットする必要がなくなる。また、これらの操作を人が行う必要がなくなるため、回路基板の品種切り替えが頻繁に発生する場合に集計もれの発生が抑えられ、煩雑な操作も不要なため部品供給装置情報を容易に活用することができる。
【0032】
第二に、同一の部品供給装置取り付け位置に複数の部品供給装置が交互に取り付けられる場合において、従来のように個々の部品供給装置について個別の部品供給装置情報を得ることができない、または部品供給装置情報から不良の部品供給装置を特定することができないといった問題がなくなる。
【0033】
また、本発明の第2の管理方法によれば、部品供給装置の良否判定および良否情報の部品供給装置との一体管理までも電子部品実装機が行うことができ、電子部品実装機単体で部品供給装置情報および良否情報の管理を完結することができる。
【0034】
また、本発明の第3の管理方法によれば、部品供給装置情報だけでなく部品供給装置の良否情報も部品供給装置と一体に管理できるため、部品供給装置情報を人が分析しなくとも部品供給装置の良否が判定できるとともに、その良否情報を人が管理する煩雑さもなくなる。
【0035】
また、各々の部品供給装置に付設された情報記憶手段から部品供給装置情報を読みだして、部品供給装置とは独立に管理する場合にも、管理されている情報と部品供給装置とが一対一に対応するため、特定の部品供給装置に関する情報の検索と管理を容易に行うことができる。
【図面の簡単な説明】
【図1】本発明の第1および第2の実施例の部品供給装置情報の管理方法で用いる装置構成図
【図2】本発明の第1の実施例の管理方法を説明する流れ図
【図3】本発明の第2の実施例の管理方法の要部を説明する流れ図
【図4】本発明のこれら実施例で用いる部品供給装置情報を説明する図
【図5】本発明の第3の実施例の部品供給装置情報の管理方法で用いる装置構成図
【図6】電子部品の荷姿図
【図7】従来例の部品供給装置の構成図
【図8】従来例で用いる装置構成図
【図9】部品検査方法の一例を説明する図
【図10】部品検査手段の一例を示す構成図
【符号の説明】
31 情報記憶手段
32 部品供給装置
33 部品供給部
34 ノズル
35 回転体
36 動作プログラム
37 位置決め装置
38 モータ
39 一次元光センサ(部品検査手段)
40 部品供給装置情報手段
41 部品供給装置判定手段
42 書き込み手段
81 部品供給装置
82 情報記憶手段
83 読み書き手段
84 部品供給装置判定手段[0001]
[Industrial applications]
The present invention relates to an electronic component mounter that automatically mounts electronic components on a circuit board.
[0002]
[Prior art]
A conventional technique for managing component supply device information in an electronic component mounter will be described with reference to FIGS. 6, 7, 8, 9, and 10. FIG.
[0003]
As shown in FIG. 6, as the packaging of electronic components supplied to the electronic component mounting machine, in particular, as shown in FIG. In general, the package 2 is wound on a reel 3. When this reel is mounted on an electronic component mounting machine, a component supply device 4 as shown in FIG. 7 is used. The mechanism of the component supply device 4 is such that the tape 6 is pulled out from the attached reel 5 and the electronic components on the tape are sucked by the nozzle 8 of the electronic component mounting machine at the suction position 7. When the lever 9 is pressed down after the electronic component is sucked, the tape 6 is sent out by the storage interval 10 of the electronic component, and the next electronic component is located at the suction position 7.
[0004]
Next, the electronic component mounter is configured as shown in FIG. The component supply unit 11 of the electronic component mounter can mount a plurality of component supply devices 12, select an arbitrary component supply device 12 from among them, and the nozzle 13 sucks the electronic components one by one. A plurality of nozzles 13 are attached to a rotating body 14 having a vertical rotation axis, and this rotating body 14 rotates in the direction of arrow A. With this rotation, the nozzle 13 moves to the position of the nozzle 15 and at the same time descends on the circuit board 16 to mount electronic components.
[0005]
By the way, when the nozzle sucks the electronic component, an abnormal state such as a case where the electronic component cannot be sucked or a case where the attitude of the electronic component is not normal even if the nozzle is sucked occurs. 9A shows a normal suction state, FIG. 9B shows a case where the electronic component is not sucked, and FIG. 9C shows a case where the attitude of the electronic component is abnormal. One method for inspecting such a suction state is to measure the height of the lower end of the nozzle 17 and the electronic component 18 when viewing the nozzle 17 and the electronic component 18 from each side in each state. H1, h2, and h3 in FIG. 9 indicate the heights of the lower ends of the nozzle and the electronic component in each of the states (a), (b), and (c). The height h2 when the electronic component is not sucked is larger than the normal height h1, and the height h3 when the posture of the electronic component is abnormal is smaller than the normal height h1. Therefore, in consideration of a certain error Δh with respect to h1, if the measured height is larger than h1 + Δh or smaller than h1-Δh, it can be determined that some kind of adsorption abnormality is present. When such a measurement is actually performed, the height h at which the light emitted from the light projecting side 21 is blocked by the nozzle 23 and the electronic component 24 is determined using a one-dimensional optical sensor 20 as shown in FIG. A method such as detection at the light receiving side 22 is used.
[0006]
Also, separately from this, the posture of the electronic component being sucked is photographed from below the nozzle using a camera or the like, and when the horizontal position and inclination of the electronic component are not within the predetermined ranges, and A case where the dimensions are different from the preset data may be regarded as an abnormal state. An electronic component mounter is usually equipped with a detection mechanism such as a one-dimensional optical sensor or a camera as described above in order to determine such an abnormal state or non-adsorption of the electronic component prior to mounting on a circuit board. It is a target.
[0007]
Conventionally, in many electronic component mounting machines, the number of times of the abnormal state and the unsucked state described above are counted for each component supply device, and the user can confirm the information as component supply device information. First, a method of attaching a display device such as a CRT to an electronic component mounter to display the information on the display device, second, connecting a printer to the electronic component mounter and printing, and thirdly, mounting an electronic component. A method of connecting a storage device such as a magnetic disk device to the device and writing information, and a fourth method of connecting a host computer to the electronic component mounting machine and storing the information on the host computer have been conventionally performed.
[0008]
The component supply device information output from the electronic component mounter to the external medium in this way counts the number of occurrences of abnormal states of the electronic components extracted from the component supply device for each component supply device. Used to detect faulty conditions that can occur in each component supply device, such as device malfunctions, dimensional defects, conditions for setting the position of the component supply device in the electronic component mounting machine, and errors in the type of electronic components mounted on the component supply device. It has been.
[0009]
[Problems to be solved by the invention]
However, since the conventional component supply device information is managed independently of the component supply device in any of the above-described conventional examples, information corresponding to a specific component supply device is extracted from the component supply device information. If this is attempted, the following difficulties will occur.
[0010]
First of all, in the electronic component mounting machine, the type of electronic components to be mounted changes when the type of circuit board to be produced changes, so the previously installed component supply device is removed, and the next circuit board to be produced is removed. It is necessary to reset the component supply device on which the components to be used are mounted. In such a case, if it is not accurately recorded which component supply apparatus has mounted what kind of component and in which position of the electronic component mounter, the totaled component supply apparatus information is used. I can't. Also, component supply device information must be output whenever the type of circuit board changes. Conventionally, such a management is performed by a person who operates the electronic component mounting machine.If the type of the circuit board is frequently changed, a total omission occurs or the management becomes complicated. There is a problem that the component supply device information is left unused.
[0011]
Second, even while producing the same circuit board, in general, in order to prepare for the depletion of electronic components mounted on the component supply device, there are cases where a plurality of component supply devices equipped with the same electronic component are prepared. Many. When the electronic component mounter manages the component supply device information, if a plurality of component supply devices are alternately mounted at the same component supply device mounting position, the aggregated component supply device information is used by using these component supply devices. The total value during this period cannot be obtained, and it is not possible to obtain individual information on individual component supply devices. Therefore, when there is a defect in a specific component supply device, there is also a problem that a defective component supply device cannot be specified from the component supply device information.
[0012]
SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problem, and to provide a component supply device information management method for accurately and easily managing quality information on a component supply device of an electronic component mounting machine for each component supply device. .
[0013]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, a first method of the present invention is to provide a component supply device capable of mounting a plurality of electronic components and supplying a fixed number of electronic components, and an information storage unit integrally provided, One or more component supply devices are mounted, and a component carrier for taking out electronic components in a specified order from a component supply device designated by a predetermined operation program; In an electronic component mounting machine having component inspection means for inspecting presence / absence and an abnormal state, a component supply device information holding unit for counting and storing inspection results by the component inspection unit for each component supply device, and an individual component supply device. A writing unit for writing information in the attached information storage unit is provided, and predetermined information among the information stored in the component supply device information holding unit is provided. Continuously information on satisfying the component supplying device writes to the information storage means annexed to the component feeding device by the writing means when the component shortage as a predetermined number component without condition, and manages.
[0014]
According to a second method of the present invention, in addition to the first method, the electronic component mounting apparatus further includes a component supply device determination unit configured to determine whether the component supply device is acceptable based on the component supply device information. The information on the component supply device that satisfies a predetermined condition among the component supply device pass / fail information determined by the device is written and managed in the information storage device attached to the component supply device by the writing device.
[0015]
According to a third method of the present invention, in addition to the first method, read / write means for reading and writing component supply device information from / to an information storage means attached to the component supply device; And a component supply device determining means for determining the quality of the component supply device based on the component supply device independent of the electronic component mounting machine. The information is written and managed in the information storage means attached to the supply device.
[0016]
Further, in these management methods, an identification name unique to each component supply device is added to the component supply device information, and the information is written and managed in an information storage unit integrally provided with each component supply device.
[0017]
[Action]
According to the above configuration, first, of the one or more component supply devices mounted on the electronic component mounter, the component transporter takes out the electronic component from the component supply device specified by the operation program, and then the component inspection device The presence / absence and abnormal state of the electronic component taken out by the component carrying means are inspected, and the inspection results by the component inspecting means are totaled and stored in the component supplying apparatus information holding means for each component supplying apparatus. After such steps are sequentially executed based on the order specified in the operation program, the information about the component supply device stored in the component supply device information holding unit is transmitted to the component supply device that satisfies the predetermined condition. Then, the information is written into the information storage means attached to the component supply device using the writing means and managed.
[0018]
Furthermore, by providing the component supply device determination means in the electronic component mounting machine, the component supply device determination means can use the component supply device determination device based on information held by the electronic component mounter using the component supply device information storage means. The quality of the device is determined. Accordingly, not only the information of the component supply device information holding unit but also the quality information of the component supply device can be written into the storage unit attached to the component supply device using the writing unit and managed.
[0019]
Further, the information storage means in which the information on the component supply device is written, reads the information on the component supply device using a read / write means provided independently of the electronic component mounter, and then reads the information on the electronic component mounter. Independently provided component supply device determination means determines the quality of the component supply device based on the information, and stores the component supply device quality information obtained by using the read / write means in a storage attached to the component supply device. Write and manage the means. Since the reading / writing means and the component supply device determining means are provided independently of the electronic component mounter, the component supply device used by the electronic component mounter must be detached from the electronic component mounter to perform the above operation. Can be.
[0020]
In addition, by adding an identification name unique to each component supply device to the component supply device information and writing and managing the information in an information storage unit integrally provided with each component supply device, the component supply device information is stored in each component supply device. When the information is read from the attached information storage means and managed independently of the component supply device, the managed information and the component supply device can be made to correspond one-to-one.
[0021]
【Example】
An embodiment of the present invention will be described below with reference to the drawings.
FIG. 1 is a configuration diagram showing an apparatus for implementing a method of managing component supply device information according to a first embodiment of the present invention. The electronic components used in this embodiment are housed in a tape as shown in FIG. 6 and wound on a reel as in the conventional example. Although the basic configuration of the component supply device is the same as that of the conventional example as shown in FIG. 7, in this embodiment, the information storage means 31 is integrally provided with the component supply device 32 as shown in FIG. A component supply device integrally provided with such information storage means has a mechanism similar to that shown as a component supply device in JP-A-04-129300. However, the difference from Japanese Patent Application Laid-Open No. 04-129300 is that an extraction detection unit is not required, and the content stored in the storage means is not the number of mounted components but the total of the inspection results by the component inspection means.
[0022]
In FIG. 1, the basic configuration of the electronic component mounter is the same as that of the conventional example, and has a component supply unit 33, a nozzle 34, and a rotating body 35. Further, the component supply unit 33 is configured to be capable of reciprocating in the direction B in which the component supply devices 32 are juxtaposed, so that when the nozzle 34 is at a predetermined position, the desired component supply device 32 is positioned directly below the nozzle 34. Can be adjusted to The position of the component supply unit 33 for each component supply is determined by a preset operation program 36, and based on the settings of the operation program 36, a positioning device 37 controls a motor 38 to position the component supply unit 33. As described above, the component supply unit 33, the nozzle 34, the rotating body 35, the positioning device 37, and the motor 38, which are the components of the electronic component mounting machine, realize a component transporting unit.
[0023]
In this embodiment, in addition to the above configuration, the electronic component mounter includes a one-dimensional optical sensor 39 functioning as a component inspection unit, a component supply device information holding unit 40, a component supply device determination unit 41, and a writing unit 42. However, the component supply device determination means 41 is necessary in the case of a second embodiment of the present invention described later. First, the component supply device information holding means 40 is for holding the inspection result of the one-dimensional optical sensor 39 for each component supply device. A value obtained by adding new information to the above information is held. Further, the component supply device determination unit 41 determines the quality of each component supply device based on the information of the component supply device information holding unit 40. The writing unit 42 is the same as the receiving / transmitting unit provided in the component mounting machine in JP-A-04-129300, and is obtained from the component supply device information holding unit 40 and the component supply device determination unit 41. It has a function of writing information to the information storage means 31 attached to the corresponding component supply device. However, at the time of writing, since it is necessary to match the position of the corresponding component supply device with the position of the writing unit 42, the component supply unit 33 is moved to a predetermined position before writing.
[0024]
Next, focusing on the processing of the component supply device information, the operation of the electronic component mounting machine of the present embodiment will be described using the flowchart of FIG. 2 and the component supply device information of FIG. First, the inspection result of the component inspection means is set to three states: normal, no component, and abnormal component posture. These correspond to the states shown in FIGS. 9A, 9B, and 9C, respectively. Further, the condition in which the writing means writes the information in the information storage means is set to the time when the component supply device has run out of components. Also, the condition for determining that the component has run out is that when the result of inspecting the component supply from the component supply device using the component inspection means has determined that there is no component continuously for a predetermined number of times. Note that, for simplicity of explanation, the flow chart of FIG. 2 is created on the assumption that components are supplied from one component supply device. Only the calculation and the component supply device determination are performed separately for each component supply device, and the processing itself is the same. Further, the component supply device information shown in FIG. 4 holds an identification name, the number of supplied components, the number of no components, the number of abnormal component postures, and the quality of the component supply device for each component supply device. However, the quality of the component supply device is necessary in the case of a second embodiment of the present invention described later, and the identification name is necessary when managing the managed information and the component supply device in one-to-one correspondence.
[0025]
In the flowchart of FIG. 2, after component supply is performed in step 51, 1 is added to the component supply frequency of the component supply device in step 52 as the number of supplied electronic components. Next, in step 53, a component inspection is performed using a one-dimensional optical sensor, and the result is determined to be one of three states: normal, no component, and abnormal component posture as shown in FIG. Here, if normal, the electronic components are mounted on the circuit board in step 57. If the component orientation is abnormal, 1 is added to the number of component orientation abnormalities of the component supply device in step 54, and the electronic component is discarded in step 56. If there is no component, after adding 1 to the number of no components of the component supply device in step 55, in order to confirm whether the component has run out, in step 58, continuous supply of components from the component supply device is performed. A check is made to see if the no-parts state continues a predetermined number of times. Here, if the predetermined number of times has not been reached, the component mounting is abandoned, but if the predetermined number of times has been reached, in step 59, the information storage means attached to the component supply device is sent to the electronic component mounting machine. The component supply unit is moved so that the writing unit attached to the position becomes a writable position. Next, in step 60, the component supply device information of the component supply device is written into the information storage unit. Here, the writing to the information storage means is performed only at the timing of running out of components. In order to minimize the operation of the electronic component mounter, it is necessary to use the time at which the electronic component mounter stops running. This is for performing the above writing. In addition, since the component supply device that has run out of components is replaced or replenished, the component supply device information relating to the component supply device is initialized in step 61. Thereafter, in step 62, the completion of component replenishment is waited for, and component mounting is resumed. This is the end of the processing for a single component. In order to execute these processes in accordance with the determined operation program, the end of the operation program is determined in step 63, and the above processes are repeated until the operation is completed. According to the method as described above, in the present embodiment, the quality information of the electronic component supplied from the component supply device can be managed integrally with the component supply device.
[0026]
FIG. 3 is a flowchart showing a main part of a method for managing component supply device information according to the second embodiment of the present invention. In FIG. 2, blocks (a), (b) and (c) are parts added to the first embodiment in the second embodiment, and details of each of them are shown in FIGS. (B) and (c). FIG. 3A illustrates the operation of the pass / fail determination means of the component supply device. In step 71, the quality of each component supply device is determined by using the component supply failure rate shown in Expression (1) as a predetermined condition for the quality determination of the component supply device determination unit 41 shown in FIG. I have.
[0027]
Figure 0003568217
Here, if the component supply defect rate is equal to or more than a predetermined value, the quality of the supply device of the component supply device is set as defective in step 72, and if not, the setting of the defect is canceled in step 73. Here, the reason why the failure once set is canceled is that even if the supply failure is concentrated immediately after the start of the production of the electronic component mounting machine, if the supply failure rate is low as a whole, the component supply device cannot be said to be defective. is there. Further, as shown in FIG. 3B, when writing the component supply device information to the information storage means, the quality of the supply device is also written in step 74. Next, as shown in FIG. 3C, when the component supply device information is initialized, in step 75, the quality of the supply device is also initialized to good. According to the method described above, according to the present embodiment, the pass / fail information of the component supply device can be managed integrally with the component supply device.
[0028]
FIG. 5 is a configuration diagram showing an apparatus for implementing the component supply device information management method according to the third embodiment of the present invention. In FIG. 5, component supply device information is read from an information storage device 82 attached to the component supply device 81 using a writing device 83, and a component having the same criterion as the component supply device determination device 41 of the second embodiment. The supply device determination means 84 is provided independently of the electronic component mounting machine, and thereby determines the quality of the component supply device. Next, the quality information of the component supply device can be managed integrally with the component supply device by writing the quality information in the information storage device 82 using the read / write device 83.
[0029]
In the first embodiment, a component supply failure rate and a component absence rate may be added to the component supply device information as information obtained by the component inspection unit. Alternatively, when a camera is used as the component inspection unit, information such as the average component deviation amount, the average component inclination angle, and the number of undetectable components may be added to the component supply device information. Further, in the second and third embodiments, whether the number of consecutive component supply failures exceeds a predetermined number may be used as a criterion of the pass / fail determination means. Further, it is also possible to derive a pass / fail evaluation value using a specific function by using each value of the component supply device information as a variable, instead of simply determining whether the component supply device is good or not, and use this as the pass / fail information of the component supply device.
[0030]
【The invention's effect】
As described above, according to the first management method of the present invention, when trying to obtain component supply device information on a specific component supply device, the conventional component supply device information is managed independently of the component supply device. On the other hand, since the component supply device information is managed integrally with the component supply device, the following effects can be obtained.
[0031]
First of all, when switching the type of circuit board to be produced, in order to use the totaled component supply device information, it is necessary to accurately determine the arrangement of each component supply device in the electronic component mounting machine. No need to record. Further, it is not necessary to output the component supply device information every time the type of the circuit board changes. In addition, since there is no need for humans to perform these operations, the occurrence of counting errors is suppressed when the type of circuit board is frequently switched, and complicated operations are not required, so that component supply device information can be easily used. can do.
[0032]
Second, when a plurality of component supply devices are alternately attached to the same component supply device attachment position, individual component supply device information cannot be obtained for each component supply device as in the related art, or component supply devices cannot be obtained. The problem that a defective component supply device cannot be specified from the device information is eliminated.
[0033]
Further, according to the second management method of the present invention, the electronic component mounter can perform the quality control of the component supply device and the integrated management of the quality information with the component supply device. The management of the supply device information and the quality information can be completed.
[0034]
According to the third management method of the present invention, not only the component supply device information but also the quality information of the component supply device can be managed integrally with the component supply device. The quality of the supply device can be determined, and the trouble of manually managing the quality information can be eliminated.
[0035]
Also, when the component supply device information is read from the information storage means attached to each component supply device and managed independently of the component supply device, the managed information and the component supply device have a one-to-one correspondence. Therefore, it is possible to easily search and manage information on a specific component supply device.
[Brief description of the drawings]
FIG. 1 is a diagram illustrating an apparatus configuration used in a method of managing component supply apparatus information according to first and second embodiments of the present invention. FIG. 2 is a flowchart illustrating a management method according to a first embodiment of the present invention. FIG. 4 is a flowchart for explaining a main part of a management method according to a second embodiment of the present invention. FIG. 4 is a diagram for explaining component supply apparatus information used in these embodiments of the present invention. FIG. 5 is a third embodiment of the present invention. Device configuration diagram used in the example component supply device information management method [FIG. 6] Packing diagram of electronic components [FIG. 7] Configuration diagram of a conventional component supply device [FIG. 8] Device configuration diagram used in a conventional example [FIG. 9 illustrates an example of a component inspection method. [FIG. 10] A configuration diagram illustrating an example of a component inspection unit.
31 information storage means 32 parts supply device 33 parts supply part 34 nozzle 35 rotating body 36 operation program 37 positioning device 38 motor 39 one-dimensional optical sensor (parts inspection means)
40 component supply device information means 41 component supply device determination means 42 writing means 81 component supply device 82 information storage means 83 read / write means 84 component supply device determination means

Claims (4)

複数の電子部品を搭載可能でかつ電子部品を一定個数ずつ供給するとともに、情報記憶手段を一体に付設した部品供給装置と、この部品供給装置を一個または複数個搭載するとともに、あらかじめ定められた動作プログラムによって指定された部品供給装置から指定された順序で電子部品を取り出す部品運搬手段と、部品運搬手段により取り出された電子部品の有無および異常状態を検査する部品検査手段とを有する電子部品実装機において、部品検査手段による検査結果を各部品供給装置搭載位置単位で集計し記憶する部品供給装置情報保持手段と、個々の部品供給装置に付設した前記情報記憶手段に情報を書き込む書き込み手段とを用い、部品供給装置情報保持手段に記憶された情報のうち所定の条件を満たす部品供給装置に関する情報を連続して所定回数部品無し状態となる部品切れのときに書き込み手段により当該部品供給装置に付設した情報記憶手段に書き込む部品供給装置情報の管理方法。A component supply device capable of mounting a plurality of electronic components and supplying a fixed number of electronic components, and integrally incorporating information storage means, and mounting one or more of the component supply devices and performing a predetermined operation. An electronic component mounter having a component carrier for extracting electronic components in a specified order from a component supply device specified by a program, and a component inspection unit for inspecting presence / absence and an abnormal state of the electronic component extracted by the component carrier. A component supply device information holding unit that totals and stores the inspection results by the component inspection unit for each component supply device mounting position, and a writing unit that writes information to the information storage unit attached to each component supply device. And information on a component supply device satisfying a predetermined condition among information stored in the component supply device information holding unit. Management method of the write to the information storage means annexed to the component supply device component feeder information by writing means when the component shortage that continuously a predetermined number component without condition. 部品供給装置情報をもとに部品供給装置の良否判定を行う部品供給装置判定手段を用い、この部品供給装置判定手段で判定された部品供給装置良否情報のうち所定の条件を満たす部品供給装置に関する情報を書き込み手段により当該部品供給装置に付設した情報記憶手段に書き込む請求項1記載の部品供給装置情報の管理方法。A component supply device that uses a component supply device determination unit that determines the quality of the component supply device based on the component supply device information and relates to a component supply device that satisfies a predetermined condition in the component supply device quality information determined by the component supply device determination unit. 2. The method according to claim 1, wherein the information is written into the information storage device attached to the component supply device by the writing device. 電子部品実装機とは独立に備えられて、部品供給装置に付設した情報記憶手段に対し部品供給装置情報の読み出しおよび書き込みをする読み書き手段と、これにより読み出した部品供給装置情報をもとに部品供給装置の良否判定を行う部品供給装置判定手段とを用い、この部品供給装置判定手段により判定された部品供給装置良否情報を読み書き手段により当該部品供給装置に付設した情報記憶手段に書き込む請求項1記載の部品供給装置情報の管理方法。Read / write means provided independently of the electronic component mounter for reading and writing component supply device information to and from information storage means attached to the component supply device; and a component based on the component supply device information read by the component. 2. A component supply device determining means for determining the quality of a supply device, wherein the component supply device quality information determined by the component supply device determination means is written to information storage means attached to the component supply device by a read / write means. A method for managing the described component supply device information. 各々の部品供給装置に固有な識別名を部品供給装置情報に加え、各々の部品供給装置に一体に付設した情報記憶手段に書き込む請求項1〜3のいずれかに記載の部品供給装置情報の管理方法。4. The component supply device information management according to claim 1, wherein an identification name unique to each component supply device is added to the component supply device information, and the information is written in information storage means integrally attached to each component supply device. Method.
JP16827693A 1993-07-08 1993-07-08 Management method of component supply device information Expired - Fee Related JP3568217B2 (en)

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DE19842951C1 (en) * 1998-09-18 2000-06-21 Siemens Nixdorf Inf Syst Automatic placement machine with identification device for component containers
EP1569004A1 (en) * 2004-02-25 2005-08-31 Omron Corporation Mounting-error inspecting method and substrate inspecting apparatus using the method
US7356176B2 (en) 2004-02-26 2008-04-08 Omron Corporation Mounting-error inspecting method and substrate inspecting apparatus using the method

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