JP3920231B2 - Inner diameter ball groove measuring apparatus and inner diameter ball groove measuring method - Google Patents

Inner diameter ball groove measuring apparatus and inner diameter ball groove measuring method Download PDF

Info

Publication number
JP3920231B2
JP3920231B2 JP2003045880A JP2003045880A JP3920231B2 JP 3920231 B2 JP3920231 B2 JP 3920231B2 JP 2003045880 A JP2003045880 A JP 2003045880A JP 2003045880 A JP2003045880 A JP 2003045880A JP 3920231 B2 JP3920231 B2 JP 3920231B2
Authority
JP
Japan
Prior art keywords
inner diameter
ball groove
diameter ball
fitting shaft
measuring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP2003045880A
Other languages
Japanese (ja)
Other versions
JP2004257750A (en
Inventor
祐二 瀬崎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honda Motor Co Ltd
Original Assignee
Honda Motor Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Priority to JP2003045880A priority Critical patent/JP3920231B2/en
Publication of JP2004257750A publication Critical patent/JP2004257750A/en
Application granted granted Critical
Publication of JP3920231B2 publication Critical patent/JP3920231B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Description

【0001】
【発明の属する技術分野】
本発明は、内径ボール溝測定装置および内径ボール溝測定方法に関する。
【0002】
【従来の技術】
従来の内径ボール溝測定装置に関する技術として、ワークを載置させる測定台と、測定台に載置された状態のワークの内径側に挿入されるアームと、このアームの先端に設けられて内径ボール溝に挿入される測定子とを有し、測定子の位置をアームの揺動量として電気的に検出するものがある(例えば、特許文献1参照)。
【0003】
【特許文献1】
特開平9−210605号公報
【0004】
ところで、内径ボール溝加工装置の段取り替え時または刃具交換時においては、実際に内径ボール溝加工装置でワークを加工し、角度および位置の変化を避けるためこのワークを内径ボール溝加工装置から取り外すことなく内径ボール溝の寸法を確認し、その寸法から内径ボール溝加工装置の設定を調整してワークを加工するという作業が必要により何度か繰り返されることになる。このような段取り替え時または刃具交換時においては、上記のようにワークを内径ボール溝加工装置から取り外さずに内径ボール溝の測定を行わなければならないため、上記のようなワーク載置型の内径ボール溝測定装置を使用することはできない。
【0005】
このため、ワークの内径側に挿入される軸部とこの軸部の先端から直交方向一側に延出する基準当接部と、軸部の先端から直交方向逆側に延出する測定部とを有する機械的なシリンダゲージを用いて、基準当接部をワークの内径部に当接させた状態で測定部を内径ボール溝に挿入し、測定部の変位量を機械的に検出しているのが現状である。
【0006】
【発明が解決しようとする課題】
しかしながら、上記のようなシリンダゲージを用いて測定するのでは、基準当接部と測定部とを結んだ線つまり測定部の移動軸線とワークの内径部との直交度が確保できず、測定精度が不十分となってしまうという問題があった。一方、このような直交度不足の影響を極力排除しつつ測定を行うためには熟練を要するという問題があった。
【0007】
したがって、本発明は、熟練を要さずに測定精度を向上させることができる内径ボール溝測定装置および内径ボール溝測定方法の提供を目的とする。
【0008】
【課題を解決するための手段】
上記目的を達成するために、請求項1に係る発明は、把持部(例えば実施の形態における把持部23)と測定部(例えば実施の形態における測定部24)とを有し前記把持部において把持されて手持ち操作される内径ボール溝測定装置(例えば実施の形態における内径ボール溝測定装置11)であって、前記測定部は、ワーク(例えば実施の形態におけるワーク12)の内径部(例えば実施の形態における小径内径部18)に嵌合される嵌合軸部(例えば実施の形態における嵌合軸部30)と、該嵌合軸部の外径側に該嵌合軸部の半径方向に移動可能に設けられ該嵌合軸部がワークの内径部に嵌合された状態で該内径部に形成された内径ボール溝(例えば実施の形態における内径ボール溝21)に挿入されるとともに位置が電気的に検出される測定子(例えば実施の形態における測定子32)とを有しており、前記測定部には、前記嵌合軸部の前記把持部側に、前記ワークの軸直交方向に沿う当接面(例えば実施の形態における当接面20)に当接するフランジ部(例えば実施の形態におけるフランジ部31)が設けられていることを特徴としている。
【0009】
これにより、把持部において把持されて手持ち操作されることにより、嵌合軸部がワークの内径部に嵌合され内径部に形成された内径ボール溝に測定子が挿入されて、この測定子が内径ボール溝に合わせて変位することになり、この変位を電気的に検出して内径ボール溝を測定する。このように、嵌合軸部においてワークの内径部に嵌合させられるため、測定子と嵌合軸部の測定子に対し反対側とを嵌合軸部の径方向に沿って結んだ線つまり測定子の移動軸線のワークの内径部に対する直交度を確保できる。また、測定子はその位置が電気的に検出されるため、その検出データを演算装置に入力し演算装置においてこの検出データから補正データを演算するようにすれば、測定後の内径ボール溝加工装置への演算入力を自動化することが可能となる。
【0011】
また、嵌合軸部をワークの内径部に嵌合させてフランジ部をワークの軸直交方向に沿う当接面に当接させると、当接面とワークの内径部との直交度および嵌合軸部とフランジ部との直交度を管理しておくことで、測定子と嵌合軸部の測定子に対し反対側とを嵌合軸部の径方向に沿って結んだ線つまり測定子の移動軸線の内径部に対する直交度をさらに向上させることができる。
【0012】
請求項2に係る発明は、請求項1に係る発明において、前記嵌合軸部の前記測定子よりも先端側に前記内径ボール溝に挿入可能なガイド突起部(例えば実施の形態におけるガイド突起部33)が前記嵌合軸部の円周方向における位置を前記測定子に合わせて設けられていることを特徴としている。
【0013】
これにより、嵌合軸部をワークの内径部に嵌合させる際にガイド突起部を内径ボール溝に挿入すると、ガイド突起部が内径ボール溝に案内されることでこのガイド突起部と位置が合う測定子も内径ボール溝に案内されて挿入されることになる。
【0014】
請求項3に係る発明は、ワーク(例えば実施の形態におけるワーク12)の内径部(例えば実施の形態における小径内径部18)の内径ボール溝(例えば実施の形態における内径ボール溝21)を加工する内径ボール溝加工装置(例えば実施の形態における内径ボール溝加工装置44)の段取り替え時および刃具交換時の少なくともいずれか一方において、嵌合軸部(例えば実施の形態における嵌合軸部30)と該嵌合軸部の外径側に該嵌合軸部の半径方向に移動可能に設けられるとともに位置が電気的に検出される測定子(例えば実施の形態における測定子32)とを有する測定部(例えば実施の形態における測定部24)と把持部(例えば実施の形態における把持部23)とを備えた内径ボール溝測定装置(例えば実施の形態における内径ボール溝測定装置11)を前記把持部において把持して手持ち操作することにより、内径ボール溝加工後のワークを前記内径ボール溝加工装置から取り外すことなく、前記嵌合軸部を前記ワークの内径部に嵌合させつつ該内径部に形成された内径ボール溝に前記測定子を挿入して前記内径ボール溝を測定する方法であって、前記内径ボール溝測定装置は前記嵌合軸部の前記把持部側にフランジ部(例えば実施の形態におけるフランジ部31)を有しており、前記嵌合軸部を前記ワークの前記内径部に嵌合させて前記フランジ部を前記ワークの軸直交方向に沿う当接面(例えば実施の形態における当接面20)に当接させることを特徴としている。
【0015】
これにより、ワークの内径部の内径ボール溝を加工する内径ボール溝加工装置の段取り替え時および刃具交換時の少なくともいずれか一方において、内径ボール溝加工後のワークを内径ボール溝加工装置に取り付けた状態のまま、内径ボール溝測定装置を把持部において把持して手持ち操作することにより、その嵌合軸部をワークの内径部に嵌合させ内径部に形成された内径ボール溝に測定子を挿入させると、測定子が内径ボール溝に合わせて変位することになり、この変位を電気的に検出して内径ボール溝を測定する。このように、内径ボール溝測定装置は嵌合軸部においてワークの内径部に嵌合させられるため、測定子と嵌合軸部の測定子に対し反対側とを嵌合軸部の径方向に沿って結んだ線つまり測定子の移動軸線の内径部に対する直交度を確保できる。また、測定子はその位置が電気的に検出されるため、その検出データを演算装置に入力し演算装置においてこの検出データから補正データを演算するようにすれば、測定後の内径ボール溝加工装置への演算入力を自動化することが可能となる。
【0017】
また、嵌合軸部をワークの内径部に嵌合させてフランジ部をワークの軸直交方向に沿う当接面に当接させると、当接面とワークの内径部との直交度および嵌合軸部とフランジ部との直交度を管理しておくことで、測定子と嵌合軸部の測定子に対し反対側とを嵌合軸部の径方向に沿って結んだ線つまり測定子の移動軸線の内径部に対する直交度をさらに向上させることができる。
【0018】
請求項4に係る発明は、請求項3に係る発明において、前記内径ボール溝測定装置には前記嵌合軸部の前記測定子よりも先端側にガイド突起部(例えば実施の形態におけるガイド突起部33)が前記嵌合軸部の円周方向における位置を前記測定子に合わせて設けられており、前記嵌合軸部を前記ワークの前記内径部に嵌合させる際に前記ガイド突起部を前記内径ボール溝に挿入することを特徴としている。
【0019】
これにより、嵌合軸部をワークの内径部に嵌合させる際にガイド突起部を内径ボール溝に挿入すると、ガイド突起部が内径ボール溝に案内されることでこのガイド突起部と位置が合う測定子も内径ボール溝に案内されて挿入されることになる。
【0020】
【発明の実施の形態】
本発明の一実施形態の内径ボール溝測定装置および内径ボール溝測定方法について図面を参照して以下に説明する。
【0021】
図1において、符号11は内径ボール溝測定装置を、符号12は内径ボール溝測定装置11で測定が行われるワーク12を示している。
【0022】
ワーク12は、具体的には無段変速機(CVT)の可動体および固定体で構成されるプーリの可動体であり、軸線方向一側にテーパ部14が形成されるとともに軸線方向における逆側に軸部15が形成され、さらに中心軸線に沿って大径内径部17と小径内径部(内径部)18とを有する段付穴19が貫通形成されている。ここで、大径内径部17は軸線方向における位置がテーパ部14とほぼ一致しており、小径内径部18は軸線方向における位置が軸部15とほぼ一致している。なお、小径内径部18と大径内径部17との間の段部に形成された軸直交方向に沿う当接面20は小径内径部18に対する直交度が確保されている。
【0023】
このワーク12には、小径内径部18から半径方向外側に凹状をなしかつ軸線方向に沿って延在する内径ボール溝21が一カ所のみ形成されている。この内径ボール溝21は、小径内径部18の軸線方向における全長に形成されており、その溝底が大径内径部17よりも小径の位置に位置している。ここで、このワーク12の内径ボール溝21には、図示は略すがプーリの固定体の内径ボール溝とで形成される空間に球形状のボールまたは円柱状のニードルからなる回転規制部材が嵌合されることになり、これにより、プーリは可動体が固定体に対し円周方向の相対回転が規制されつつ軸線方向に摺動可能となる。
【0024】
本実施形態の内径ボール溝測定装置11は、作業者の手で把持される把持部23と内径ボール溝21の測定を行う測定部24とからなり把持部23において作業者により把持されて手持ち操作されて内径ボール溝21の測定を行う測定装置本体25と、この測定装置本体25に電気ケーブル26を介して接続される演算装置27とを有している。
【0025】
測定装置本体25の測定部24は、把持部23から直線状に延出しワーク12の小径内径部18に嵌合される嵌合軸部30と、嵌合軸部30の把持部23側に設けられて嵌合軸部30から半径方向外側に広がるフランジ部31と、嵌合軸部30のフランジ部31側の外径側に嵌合軸部30の半径方向に移動可能に一つのみ設けられた球面形状の測定子32と、嵌合軸部30の測定子32よりも先端側に嵌合軸部30の円周方向における位置を測定子32に合わせて設けられた球面形状のガイド突起部33とを有している。なお、フランジ部31の嵌合軸部30側の端面34は嵌合軸部30に対する直交度が確保されている。
【0026】
嵌合軸部30には、半径方向に沿って穴部36が形成されており、この穴部36に球形状の上記測定子32が嵌合軸部30の外径部37から一部突出するように摺動可能に嵌合されている。ここで穴部36の嵌合軸部30の外径部37側の端部には測定子32が穴部36から抜け出るのを規制する図示せぬ規制部が形成されている。また、測定子32は穴部36に設けられたスプリング39で嵌合軸部30の半径方向外側に付勢されている。嵌合軸部30の半径方向における測定子32の内側には測定子32の移動量を電気信号に変換する電気信号変換部41が設けられており、この電気信号変換部41が電気ケーブル26を介して演算装置27に接続されている。
【0027】
ここで、嵌合軸部30は、ワーク12の小径内径部18に対し、円滑に抜き差し可能であって差し込んだ状態でのがたつきが最小限に抑えられる大きさの隙間をもって嵌合させられる外径を有しており、測定子32は、このように嵌合軸部30がワーク12の小径内径部18に嵌合された状態で内径ボール溝21に挿入されることになる。このとき、嵌合軸部30の測定子32に対し反対側が小径内径部18に当接した状態で測定子32は内径ボール溝21に当接ししかも内径ボール溝21で押されて半径方向に若干引っ込んだ状態となる。なお、測定子32は、可動体と固定体との組み立て時に内径ボール溝21に挿入されるボールまたはニードルからなる図示せぬ回転規制部材と同径とされている。
【0028】
以上により、測定子32は、嵌合軸部30がワーク12の小径内径部18に嵌合された状態で小径内径部18に形成された内径ボール溝21に挿入されるとともに嵌合軸部30の半径方向における位置が電気信号変換部41により電気的に検出される。なお、電気信号変換部41から出力される電気信号は電気ケーブル26を介して演算装置27に出力されることになる。また、この演算装置27は、電気ケーブル43を介して内径ボール溝加工装置44の制御装置47に接続されている。
【0029】
ガイド突起部33は、嵌合軸部30からの突出量が最も突出した状態の測定子32よりも小さくされている。
【0030】
上記ワーク12は、図2に示すように、軸部15の外径側が内径ボール溝加工装置44のチャック45に把持されることになり、予め前工程で切削加工等により形成されている内径ボール溝21が内径ボール溝加工装置44の刃具46によって研削加工されることになる。
【0031】
ここで、ワーク12の小径内径部18の内径ボール溝21を研削加工する内径ボール溝加工装置44の段取り替え時および刃具交換時のいずれにおいても、内径ボール溝加工装置44のチャック45に対する刃具46の詳細位置が不明となるため、チャック45でワーク12を把持した状態で刃具46でワーク12の内径ボール溝21を実際に研削加工してフィードバック用の補正データを作成する。
【0032】
つまり、図2に示すように、チャック45でワーク12を把持した状態でこのワーク12の内径ボール溝21を一度刃具(砥石)46で研削加工すると、その後、ワーク12を内径ボール溝加工装置44に取り付けた状態のまま、つまりチャック45で把持した状態のまま、内径ボール溝測定装置11の測定装置本体25を作業者が把持部23において把持して手持ち操作することにより、図3に示すように、その嵌合軸部30をワーク12の小径内径部18に大径内径部17側から嵌合させ、その際に先端側のガイド突起部33を内径ボール溝21に挿入してから嵌合軸部30の嵌合をさらに進める。すると、ガイド突起部33が内径ボール溝21に案内されることで、このガイド突起部33と円周方向の位置が合う測定子32も内径ボール溝21に案内されて挿入される。この内径ボール溝21に挿入される際に測定子32は内径ボール溝21に載り上げて内径ボール溝21に対し当接状態となり、その結果、測定子32は嵌合軸部30の半径方向内方側に変位する。このとき、測定装置本体25のフランジ部31の端面34をワーク12の軸直交方向に沿う当接面20に全周にわたり当接させると、ワーク12は当接面20と小径内径部18との直交度が確保され、測定装置本体25は嵌合軸部30とフランジ部31の端面34との直交度が確保されているため、測定子32と嵌合軸部30の測定子32に対し反対側とを嵌合軸部30の径方向に沿って結んだ線つまり測定子32の移動軸線の小径内径部18に対する直交度が確保される。そして、この状態で上記測定子32の変位に応じた電気信号を電気信号変換部41が電気ケーブル26を介して演算装置27に出力する。
【0033】
演算装置27では、入力された電気信号から内径ボール溝21の実際の深さを検出するとともに、この実際の深さの内径ボール溝21の正規の深さに対するずれ量を演算し、これらの値を表示する。さらに、演算装置27は、このずれ量分を補正するように刃具46の内径ボール溝21を研削加工する際の位置データを補正する補正データを演算し、電気ケーブル43を介して結ばれた内径ボール溝加工装置44の制御装置47にこの補正データを出力し、この内径ボール溝加工装置44の制御装置47の制御データをこの補正データで補正する。
【0034】
次に、測定装置本体25が抜かれた状態で同じワーク12を、上記のようにして制御データが補正された内径ボール溝加工装置44の刃具46で再び研削加工することになり、このような内径ボール溝加工、内径ボール溝測定、制御データの補正の流れを適宜繰り返すことで、内径ボール溝21が正規の深さに研削加工されることになる。
【0035】
そして、このようにして内径ボール溝加工装置44が内径ボール溝21を正規の深さに研削加工できる状態となることで、内径ボール溝加工装置44の段取り替えあるいは刃具交換が完了することになる。
【0036】
以上に述べたように、本実施形態によれば、ワーク12の小径内径部18の内径ボール溝21を加工する内径ボール溝加工装置44の段取り替え時および刃具交換時の少なくともいずれか一方において、内径ボール溝21が加工された後のワーク12を内径ボール溝加工装置44に取り付けた状態のまま、作業者が、内径ボール溝測定装置11の測定装置本体25を把持部23において把持して手持ち操作することにより、その嵌合軸部30をワーク12の小径内径部18に嵌合させ小径内径部18に形成された内径ボール溝21に測定子32を挿入させる。すると、測定子32が内径ボール溝21の深さに合わせて変位することになり、この変位を電気的に検出して内径ボール溝21を測定する。このように、嵌合軸部30においてワーク12の小径内径部18に嵌合させられるため、測定子32と嵌合軸部30の測定子32に対し反対側とを嵌合軸部30の径方向に沿って結んだ線つまり測定子32の移動軸線の小径内径部18に対する直交度を確保できる。したがって、熟練を要さずに測定精度を向上させることができる。
【0037】
しかも、嵌合軸部30をワーク12の小径内径部18に嵌合させてフランジ部31をワーク12の軸直交方向に沿う当接面20に当接させるため、当接面20と小径内径部18との直交度および嵌合軸部30とフランジ部31との直交度が確保されていることから、測定子32と嵌合軸部30の測定子32に対し反対側とを嵌合軸部30の径方向に沿って結んだ線つまり測定子32の移動軸線の小径内径部18に対する直交度をさらに向上させることができる。したがって、さらに熟練を要さずに測定精度を向上させることができる。
【0038】
また、測定子32はその位置が電気的に検出されるため、上記のようにその検出データを演算装置27に入力し演算装置27においてこの検出データから補正データを演算することにより、測定後の内径ボール溝加工装置44へのフィードバックデータの演算入力を自動化することができる。
【0039】
さらに、嵌合軸部30をワーク12の小径内径部18に嵌合させる際にガイド突起部33を内径ボール溝21に挿入すると、ガイド突起部33が内径ボール溝21に案内されることでこのガイド突起部33と位置が合う測定子32も内径ボール溝21に案内されて挿入されることになる。したがって、測定子32が内径ボール溝21以外の部分に衝突して破損等を生じてしまうことがなくなる。
【0040】
【発明の効果】
以上詳述したように、請求項1に係る発明によれば、把持部において把持されて手持ち操作されることにより、嵌合軸部がワークの内径部に嵌合され内径部に形成された内径ボール溝に測定子が挿入されて、この測定子が内径ボール溝に合わせて変位することになり、この変位を電気的に検出して内径ボール溝を測定する。このように、嵌合軸部においてワークの内径部に嵌合させられるため、測定子と嵌合軸部の測定子に対し反対側とを嵌合軸部の径方向に沿って結んだ線つまり測定子の移動軸線の内径部に対する直交度を確保できる。したがって、熟練を要さずに測定精度を向上させることができる。また、測定子はその位置が電気的に検出されるため、その検出データを演算装置に入力し演算装置においてこの検出データから補正データを演算するようにすれば、測定後の内径ボール溝加工装置への演算入力を自動化することが可能となる。
【0041】
また、嵌合軸部をワークの内径部に嵌合させてフランジ部をワークの軸直交方向に沿う当接面に当接させると、当接面と内径部の軸線との直交度および嵌合軸部とフランジ部との直交度を管理しておくことで、測定子と嵌合軸部の測定子に対し反対側とを嵌合軸部の径方向に沿って結んだ線つまり測定子の移動軸線の内径部に対する直交度をさらに向上させることができる。したがって、さらに熟練を要さずに測定精度を向上させることができる。
【0042】
請求項2に係る発明によれば、嵌合軸部をワークの内径部に嵌合させる際にガイド突起部を内径ボール溝に挿入すると、ガイド突起部が内径ボール溝に案内されることでこのガイド突起部と位置が合う測定子も内径ボール溝に案内されて挿入されることになる。したがって、測定子が内径ボール溝以外の部分に衝突して破損等を生じてしまうことがなくなる。
【0043】
請求項3に係る発明によれば、ワークの内径部の内径ボール溝を加工する内径ボール溝加工装置の段取り替え時および刃具交換時の少なくともいずれか一方において、内径ボール溝加工後のワークを内径ボール溝加工装置に取り付けた状態のまま、内径ボール溝測定装置を把持部において把持して手持ち操作することにより、その嵌合軸部をワークの内径部に嵌合させ内径部に形成された内径ボール溝に測定子を挿入させると、測定子が内径ボール溝に合わせて変位することになり、この変位を電気的に検出して内径ボール溝を測定する。このように、嵌合軸部においてワークの内径部に嵌合させられるため、測定子と嵌合軸部の測定子に対し反対側とを嵌合軸部の径方向に沿って結んだ線つまり測定子の移動軸線の内径部に対する直交度を確保できる。したがって、熟練を要さずに測定精度を向上させることができる。また、測定子はその位置が電気的に検出されるため、その検出データを演算装置に入力し演算装置においてこの検出データから補正データを演算するようにすれば、測定後の内径ボール溝加工装置への演算入力を自動化することが可能となる。
【0044】
また、嵌合軸部をワークの内径部に嵌合させてフランジ部をワークの軸直交方向に沿う当接面に当接させると、当接面と内径部との直交度および嵌合軸部とフランジ部との直交度を管理しておくことで、測定子と嵌合軸部の測定子に対し反対側とを嵌合軸部の径方向に沿って結んだ線つまり測定子の移動軸線の内径部に対する直交度をさらに向上させることができる。したがって、さらに熟練を要さずに測定精度を向上させることができる。
【0045】
請求項4に係る発明によれば、嵌合軸部をワークの内径部に嵌合させる際にガイド突起部を内径ボール溝に挿入すると、ガイド突起部が内径ボール溝に案内されることでこのガイド突起部と位置が合う測定子も内径ボール溝に案内されて挿入されることになる。したがって、測定子が内径ボール溝以外の部分に衝突して破損等を生じてしまうことがなくなる。
【図面の簡単な説明】
【図1】 本発明の一実施形態の内径ボール溝測定装置およびワーク等を示す一部を断面とした側面図である。
【図2】 本発明の一実施形態の内径ボール溝測定装置で測定されるワークおよび内径ボール溝加工装置等を示す一部を断面とした側面図である。
【図3】 本発明の一実施形態の内径ボール溝測定装置でワークを測定する状態を示す一部を断面とした側面図である。
【符号の説明】
11 内径ボール溝測定装置
12 ワーク
18 小径内径部(内径部)
20 当接面
21 内径ボール溝
23 把持部
24 測定部
30 嵌合軸部
31 フランジ部
32 測定子
33 ガイド突起部
44 内径ボール溝加工装置
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an inner diameter ball groove measuring device and an inner diameter ball groove measuring method.
[0002]
[Prior art]
As a technology related to a conventional inner diameter ball groove measuring device, a measuring table for placing a workpiece, an arm inserted on the inner diameter side of the workpiece placed on the measuring table, and an inner diameter ball provided at the tip of this arm Some have a probe inserted into the groove, and electrically detect the position of the probe as the amount of swing of the arm (see, for example, Patent Document 1).
[0003]
[Patent Document 1]
Japanese Patent Laid-Open No. 9-210605
By the way, when changing the setup of the inner diameter ball grooving device or replacing the cutting tool, the workpiece is actually processed by the inner diameter ball grooving device, and this work is removed from the inner diameter ball grooving device in order to avoid changes in angle and position. The work of checking the dimensions of the inner diameter ball groove and adjusting the setting of the inner diameter ball groove processing apparatus based on the dimension is repeated several times as necessary. When changing the setup or cutting tool, it is necessary to measure the inner diameter ball groove without removing the workpiece from the inner diameter ball groove processing apparatus as described above. The groove measuring device cannot be used.
[0005]
For this reason, a shaft portion inserted on the inner diameter side of the workpiece, a reference contact portion extending from the tip of the shaft portion to one side in the orthogonal direction, and a measuring portion extending from the tip of the shaft portion to the opposite side in the orthogonal direction Using a mechanical cylinder gauge with a reference contact part in contact with the inner diameter part of the workpiece, the measurement part is inserted into the inner diameter ball groove, and the displacement of the measurement part is mechanically detected. is the current situation.
[0006]
[Problems to be solved by the invention]
However, when measuring using the cylinder gauge as described above, the degree of orthogonality between the line connecting the reference contact part and the measurement part, that is, the movement axis of the measurement part and the inner diameter part of the workpiece cannot be ensured. There was a problem that would become insufficient. On the other hand, there is a problem that skill is required to perform the measurement while eliminating the influence of such a lack of orthogonality as much as possible.
[0007]
Therefore, an object of the present invention is to provide an inner diameter ball groove measuring device and an inner diameter ball groove measuring method capable of improving measurement accuracy without requiring skill.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, the invention according to claim 1 includes a gripping part (for example, the gripping part 23 in the embodiment) and a measurement part (for example, the measuring part 24 in the embodiment) and grips the gripping part. An inner diameter ball groove measuring device (for example, an inner diameter ball groove measuring device 11 in the embodiment) that is hand-held and operated, and the measuring unit is an inner diameter portion (for example, an embodiment) of a workpiece (for example, the workpiece 12 in the embodiment). The fitting shaft portion (for example, the fitting shaft portion 30 in the embodiment) fitted to the small-diameter inner diameter portion 18) in the form, and moves in the radial direction of the fitting shaft portion toward the outer diameter side of the fitting shaft portion The fitting shaft is inserted into an inner diameter ball groove (for example, inner diameter ball groove 21 in the embodiment) formed in the inner diameter portion in a state where the fitting shaft portion is fitted to the inner diameter portion of the workpiece, and the position is electrically Detected And possess a feeler (feeler 32, for example in the embodiment), wherein the measuring unit, the grip portion side of the fitting shaft portion, the abutment surface along the axial orthogonal direction of the workpiece (e.g. A flange portion (for example, the flange portion 31 in the embodiment) that abuts on the abutment surface 20) in the embodiment is provided .
[0009]
As a result, when the gripping part is gripped and operated by hand, the fitting shaft part is fitted to the inner diameter part of the workpiece, and the measuring element is inserted into the inner diameter ball groove formed in the inner diameter part. The inner diameter ball groove is measured by detecting the displacement electrically. As described above, since the fitting shaft portion is fitted to the inner diameter portion of the workpiece, a line connecting the measuring element and the opposite side of the fitting shaft portion with respect to the measuring element along the radial direction of the fitting shaft portion, that is, It is possible to ensure the orthogonality of the moving axis of the probe with respect to the inner diameter portion of the workpiece. In addition, since the position of the probe is electrically detected, if the detection data is input to the calculation device and the correction data is calculated from the detection data in the calculation device, the inner diameter ball groove processing device after the measurement It is possible to automate the calculation input to the.
[0011]
Furthermore, fitting the interleaf shaft portion fitted to the inner diameter portion of the workpiece to abut against the abutment surface along the flange portion in the axial direction perpendicular to the workpiece, the orthogonality and the fitting of the inner diameter portion of the abutment surface and the workpiece By controlling the orthogonality between the shaft part and the flange part, the line connecting the measuring element and the opposite side of the fitting shaft part to the measuring element along the radial direction of the fitting shaft part, that is, the measuring element The degree of orthogonality with respect to the inner diameter portion of the moving axis can be further improved.
[0012]
According to a second aspect of the present invention, in the first aspect of the present invention, the guide protrusion (for example, the guide protrusion in the embodiment) that can be inserted into the inner diameter ball groove on the tip side of the fitting shaft. 33) is characterized in that the position of the fitting shaft portion in the circumferential direction is provided in accordance with the measuring element.
[0013]
Accordingly, when the guide projection is inserted into the inner diameter ball groove when the fitting shaft portion is fitted to the inner diameter portion of the workpiece, the guide projection is guided by the inner diameter ball groove, so that the guide projection is aligned with the guide projection. The measuring element is also guided and inserted into the inner diameter ball groove.
[0014]
The invention according to claim 3 processes the inner diameter ball groove (for example, the inner diameter ball groove 21 in the embodiment) of the inner diameter portion (for example, the small diameter inner diameter portion 18 in the embodiment) of the workpiece (for example, the workpiece 12 in the embodiment). A fitting shaft portion (for example, the fitting shaft portion 30 in the embodiment) and at least one of the stage change of the inner diameter ball groove processing device (for example, the inner diameter ball groove processing device 44 in the embodiment) and the blade replacement A measuring part having a measuring element (for example, the measuring element 32 in the embodiment) provided on the outer diameter side of the fitting shaft part so as to be movable in the radial direction of the fitting shaft part and whose position is electrically detected. An inner diameter ball groove measuring device (for example, an inner part in the embodiment) provided with a grip part (for example, the grip part 23 in the embodiment) (for example, the measurement part 24 in the embodiment). By gripping the ball groove measuring device 11) at the gripping portion and operating it by hand, the fitting shaft portion is connected to the inner diameter portion of the workpiece without removing the workpiece after the inner diameter ball groove processing from the inner diameter ball groove processing device. The inner diameter ball groove is measured by inserting the measuring element into the inner diameter ball groove formed in the inner diameter portion while being fitted to the inner diameter portion, and the inner diameter ball groove measuring device is configured to measure the gripping shaft portion. A flange portion (for example, the flange portion 31 in the embodiment) is provided on the portion side, the fitting shaft portion is fitted to the inner diameter portion of the workpiece, and the flange portion is along the direction orthogonal to the axis of the workpiece. It is characterized by being brought into contact with a contact surface (for example, the contact surface 20 in the embodiment) .
[0015]
Thereby, the workpiece after the inner diameter ball groove processing was attached to the inner diameter ball groove processing apparatus at least one of the setup change of the inner diameter ball groove processing apparatus for processing the inner diameter ball groove of the inner diameter portion of the work and the blade tool replacement. In this state, the inner diameter ball groove measuring device is gripped by the gripping part and operated by hand, so that the fitting shaft part is fitted to the inner diameter part of the workpiece and the measuring element is inserted into the inner diameter ball groove formed in the inner diameter part. Then, the measuring element is displaced in accordance with the inner diameter ball groove, and this displacement is electrically detected to measure the inner diameter ball groove. Thus, since the inner diameter ball groove measuring device is fitted to the inner diameter portion of the workpiece at the fitting shaft portion, the measuring element and the opposite side of the fitting shaft portion with respect to the measuring element are arranged in the radial direction of the fitting shaft portion. It is possible to secure a degree of orthogonality with respect to the inner diameter portion of the line connected along, that is, the moving axis of the measuring element. In addition, since the position of the probe is electrically detected, if the detection data is input to the calculation device and the correction data is calculated from the detection data in the calculation device, the inner diameter ball groove processing device after the measurement It is possible to automate the calculation input to the.
[0017]
Further , when the fitting shaft portion is fitted to the inner diameter portion of the workpiece and the flange portion is brought into contact with the contact surface along the workpiece orthogonal direction, the orthogonality between the contact surface and the inner diameter portion of the workpiece and the fitting By controlling the orthogonality between the shaft part and the flange part, the line connecting the measuring element and the opposite side of the fitting shaft part to the measuring element along the radial direction of the fitting shaft part, that is, the measuring element The degree of orthogonality with respect to the inner diameter portion of the moving axis can be further improved.
[0018]
The invention according to claim 4 is the invention according to claim 3 , wherein the inner diameter ball groove measuring device has a guide protrusion (for example, a guide protrusion in the embodiment) on the distal end side of the probe of the fitting shaft portion. 33) is provided in such a manner that the position of the fitting shaft portion in the circumferential direction is aligned with the measuring element, and when the fitting shaft portion is fitted to the inner diameter portion of the workpiece, It is characterized by being inserted into an inner diameter ball groove.
[0019]
Accordingly, when the guide projection is inserted into the inner diameter ball groove when the fitting shaft portion is fitted to the inner diameter portion of the workpiece, the guide projection is guided by the inner diameter ball groove, so that the guide projection is aligned with the guide projection. The measuring element is also guided and inserted into the inner diameter ball groove.
[0020]
DETAILED DESCRIPTION OF THE INVENTION
An inner diameter ball groove measuring device and an inner diameter ball groove measuring method according to an embodiment of the present invention will be described below with reference to the drawings.
[0021]
In FIG. 1, reference numeral 11 denotes an inner diameter ball groove measuring device, and reference numeral 12 denotes a workpiece 12 to be measured by the inner diameter ball groove measuring device 11.
[0022]
Specifically, the workpiece 12 is a pulley movable body composed of a movable body and a fixed body of a continuously variable transmission (CVT). A tapered portion 14 is formed on one side in the axial direction and the opposite side in the axial direction. A stepped hole 19 having a large diameter inner diameter portion 17 and a small diameter inner diameter portion (inner diameter portion) 18 is formed therethrough along the central axis. Here, the position of the large diameter inner diameter portion 17 in the axial direction substantially coincides with the taper portion 14, and the position of the small diameter inner diameter portion 18 in the axial direction substantially coincides with the shaft portion 15. Note that the contact surface 20 along the direction perpendicular to the axis formed in the step between the small diameter inner diameter portion 18 and the large diameter inner diameter portion 17 is ensured to be orthogonal to the small diameter inner diameter portion 18.
[0023]
The work 12 is formed with only one inner diameter ball groove 21 which is recessed radially outward from the small diameter inner diameter portion 18 and extends along the axial direction. The inner diameter ball groove 21 is formed in the entire length in the axial direction of the small diameter inner diameter portion 18, and the bottom of the groove is located at a position having a smaller diameter than the large diameter inner diameter portion 17. Here, although not shown, a rotation restricting member made of a spherical ball or a cylindrical needle is fitted in the inner diameter ball groove 21 of the work 12 in a space formed by the inner diameter ball groove of the pulley fixed body. As a result, the pulley can slide in the axial direction while the movable body is restricted from rotating relative to the fixed body in the circumferential direction.
[0024]
The inner diameter ball groove measuring device 11 according to the present embodiment includes a gripping part 23 gripped by an operator's hand and a measuring part 24 for measuring the inner diameter ball groove 21. The measuring device main body 25 for measuring the inner diameter ball groove 21 and the arithmetic device 27 connected to the measuring device main body 25 via an electric cable 26 are provided.
[0025]
The measuring unit 24 of the measuring apparatus main body 25 is provided on the side of the gripping portion 23 of the fitting shaft portion 30 and the fitting shaft portion 30 that extends linearly from the gripping portion 23 and is fitted to the small diameter inner diameter portion 18 of the workpiece 12. And only one flange portion 31 spreading outward in the radial direction from the fitting shaft portion 30 and the outer diameter side of the fitting shaft portion 30 on the flange portion 31 side so as to be movable in the radial direction of the fitting shaft portion 30. The spherically shaped measuring element 32 and the spherically shaped guide protrusion provided by aligning the position of the fitting shaft part 30 in the circumferential direction with the measuring element 32 on the tip side of the measuring part 32 of the fitting shaft part 30 33. The end surface 34 of the flange portion 31 on the fitting shaft portion 30 side is ensured to be orthogonal to the fitting shaft portion 30.
[0026]
A hole 36 is formed in the fitting shaft 30 along the radial direction, and the spherical measuring element 32 partially protrudes from the outer diameter portion 37 of the fitting shaft 30 in the hole 36. Are slidably fitted. Here, an unillustrated restricting portion for restricting the probe 32 from coming out of the hole 36 is formed at the end of the fitting portion 30 of the hole 36 on the outer diameter portion 37 side. The measuring element 32 is urged radially outward of the fitting shaft 30 by a spring 39 provided in the hole 36. An electric signal converter 41 that converts the amount of movement of the probe 32 into an electric signal is provided inside the probe 32 in the radial direction of the fitting shaft 30, and the electric signal converter 41 connects the electric cable 26 to the electric signal 26. To the arithmetic unit 27.
[0027]
Here, the fitting shaft portion 30 is fitted to the small-diameter inner diameter portion 18 of the work 12 with a gap of a size that can be smoothly inserted and removed and that rattling in the inserted state is minimized. The measuring element 32 is inserted into the inner diameter ball groove 21 in such a state that the fitting shaft portion 30 is fitted to the small diameter inner diameter portion 18 of the workpiece 12 as described above. At this time, in a state where the opposite side of the fitting shaft portion 30 with respect to the measuring piece 32 is in contact with the small-diameter inner diameter portion 18, the measuring piece 32 comes into contact with the inner diameter ball groove 21 and is pushed by the inner diameter ball groove 21 and slightly in the radial direction. Retracted. The measuring element 32 has the same diameter as a rotation restricting member (not shown) made of a ball or a needle inserted into the inner diameter ball groove 21 when the movable body and the fixed body are assembled.
[0028]
As described above, the probe 32 is inserted into the inner diameter ball groove 21 formed in the small-diameter inner diameter portion 18 in a state where the fitting shaft portion 30 is fitted to the small-diameter inner diameter portion 18 of the work 12 and the fitting shaft portion 30. The position in the radial direction is electrically detected by the electric signal converter 41. Note that the electrical signal output from the electrical signal converter 41 is output to the arithmetic unit 27 via the electrical cable 26. The arithmetic device 27 is connected to a control device 47 of the inner diameter ball groove processing device 44 through an electric cable 43.
[0029]
The guide protrusion 33 is made smaller than the measuring element 32 in a state in which the protrusion amount from the fitting shaft portion 30 is most protruded.
[0030]
As shown in FIG. 2, the workpiece 12 has an outer diameter side of the shaft portion 15 held by a chuck 45 of an inner diameter ball groove processing device 44, and an inner diameter ball formed in advance by cutting or the like in the previous process. The groove 21 is ground by the cutting tool 46 of the inner diameter ball groove processing device 44.
[0031]
Here, the cutting tool 46 with respect to the chuck 45 of the inner diameter ball groove processing apparatus 44 is used both when the inner diameter ball groove processing apparatus 44 for grinding the inner diameter ball groove 21 of the small diameter inner diameter portion 18 of the workpiece 12 is replaced. Therefore, the inner diameter ball groove 21 of the workpiece 12 is actually ground by the cutting tool 46 while the workpiece 12 is held by the chuck 45, and feedback correction data is created.
[0032]
That is, as shown in FIG. 2, the inner diameter ball groove 21 of the workpiece 12 is once ground by the cutting tool (grinding stone) 46 while the workpiece 12 is held by the chuck 45, and then the inner diameter ball groove processing device 44 is processed. As shown in FIG. 3, the operator grips the measuring device body 25 of the inner diameter ball groove measuring device 11 while holding it with the chuck 45 and performs a hand-held operation with the grip portion 23. Then, the fitting shaft portion 30 is fitted to the small-diameter inner diameter portion 18 of the workpiece 12 from the large-diameter inner diameter portion 17 side, and the guide protrusion 33 on the tip side is inserted into the inner-diameter ball groove 21 at that time. The fitting of the shaft part 30 is further advanced. Then, the guide protrusion 33 is guided into the inner diameter ball groove 21, and the measuring element 32 whose circumferential position is aligned with the guide protrusion 33 is also guided and inserted into the inner diameter ball groove 21. When inserted into the inner diameter ball groove 21, the measuring element 32 rides on the inner diameter ball groove 21 and comes into contact with the inner diameter ball groove 21, and as a result, the measuring element 32 is in the radial direction of the fitting shaft portion 30. Displace to the side. At this time, when the end surface 34 of the flange portion 31 of the measuring device body 25 is brought into contact with the contact surface 20 along the axis orthogonal direction of the workpiece 12 over the entire circumference, the workpiece 12 is formed between the contact surface 20 and the small-diameter inner diameter portion 18. Since the orthogonality is secured and the orthogonality between the fitting shaft portion 30 and the end surface 34 of the flange portion 31 is secured in the measuring device main body 25, the measuring device 32 and the measuring device 32 of the fitting shaft portion 30 are opposite to each other. The orthogonality of the line connecting the two sides along the radial direction of the fitting shaft 30, that is, the moving axis of the probe 32 to the small diameter inner diameter portion 18 is ensured. In this state, the electric signal conversion unit 41 outputs an electric signal corresponding to the displacement of the probe 32 to the arithmetic unit 27 via the electric cable 26.
[0033]
The arithmetic unit 27 detects the actual depth of the inner diameter ball groove 21 from the input electric signal, calculates the deviation amount of the actual depth with respect to the normal depth of the inner diameter ball groove 21, and these values. Is displayed. Further, the calculation device 27 calculates correction data for correcting position data when grinding the inner diameter ball groove 21 of the cutting tool 46 so as to correct the deviation amount, and the inner diameter connected via the electric cable 43. The correction data is output to the control device 47 of the ball groove processing device 44, and the control data of the control device 47 of the inner diameter ball groove processing device 44 is corrected with the correction data.
[0034]
Next, the same workpiece 12 is ground again with the cutting tool 46 of the inner diameter ball groove processing device 44 with the control data corrected as described above in a state where the measuring device main body 25 is removed. By appropriately repeating the flow of ball groove machining, inner diameter ball groove measurement, and control data correction, the inner diameter ball groove 21 is ground to a normal depth.
[0035]
In this way, when the inner diameter ball groove processing device 44 can grind the inner diameter ball groove 21 to a normal depth, the setup or cutting tool replacement of the inner diameter ball groove processing device 44 is completed. .
[0036]
As described above, according to the present embodiment, at least one of the step change of the inner diameter ball groove processing device 44 for processing the inner diameter ball groove 21 of the small diameter inner diameter portion 18 of the work 12 and the blade replacement, While the workpiece 12 after the inner diameter ball groove 21 has been processed is attached to the inner diameter ball groove processing apparatus 44, the operator holds the measuring device body 25 of the inner diameter ball groove measuring apparatus 11 with the grip portion 23 and holds it. By operating, the fitting shaft portion 30 is fitted to the small diameter inner diameter portion 18 of the workpiece 12, and the probe 32 is inserted into the inner diameter ball groove 21 formed in the small diameter inner diameter portion 18. Then, the measuring element 32 is displaced according to the depth of the inner diameter ball groove 21, and the inner diameter ball groove 21 is measured by electrically detecting the displacement. Thus, since the fitting shaft portion 30 is fitted to the small-diameter inner diameter portion 18 of the workpiece 12, the diameter of the fitting shaft portion 30 is set so that the measuring element 32 and the opposite side of the fitting shaft portion 30 with respect to the measuring element 32. It is possible to ensure the orthogonality of the line connected along the direction, that is, the moving axis of the measuring element 32 to the small diameter inner diameter portion 18. Therefore, measurement accuracy can be improved without requiring skill.
[0037]
Moreover, since the fitting shaft portion 30 is fitted to the small diameter inner diameter portion 18 of the workpiece 12 and the flange portion 31 is brought into contact with the abutting surface 20 along the axis orthogonal direction of the workpiece 12, the contact surface 20 and the small diameter inner diameter portion. 18, and the orthogonality between the fitting shaft 30 and the flange 31 are ensured, and therefore, the measuring element 32 and the opposite side of the fitting shaft 30 with respect to the measuring element 32 are connected to the fitting axis. It is possible to further improve the orthogonality of the line connected along the radial direction 30, that is, the moving axis of the measuring element 32 to the small-diameter inner diameter portion 18. Therefore, measurement accuracy can be improved without requiring further skill.
[0038]
Further, since the position of the measuring element 32 is electrically detected, the detected data is input to the arithmetic unit 27 as described above, and the arithmetic unit 27 calculates correction data from the detected data, thereby obtaining a post-measurement data. Calculation input of feedback data to the inner diameter ball groove processing device 44 can be automated.
[0039]
Furthermore, when the guide projection 33 is inserted into the inner diameter ball groove 21 when the fitting shaft portion 30 is fitted to the small diameter inner diameter portion 18 of the workpiece 12, the guide projection 33 is guided by the inner diameter ball groove 21. The measuring element 32 that is aligned with the guide protrusion 33 is also guided and inserted into the inner diameter ball groove 21. Therefore, the probe 32 does not collide with a portion other than the inner diameter ball groove 21 to cause damage or the like.
[0040]
【The invention's effect】
As described above in detail, according to the first aspect of the present invention, the inner diameter formed in the inner diameter portion by fitting the fitting shaft portion to the inner diameter portion of the workpiece by being gripped by the grip portion and operated by hand. A measuring element is inserted into the ball groove, and the measuring element is displaced in accordance with the inner diameter ball groove. The displacement is electrically detected to measure the inner diameter ball groove. As described above, since the fitting shaft portion is fitted to the inner diameter portion of the workpiece, a line connecting the measuring element and the opposite side of the fitting shaft portion with respect to the measuring element along the radial direction of the fitting shaft portion, that is, The degree of orthogonality with respect to the inner diameter portion of the moving axis of the probe can be secured. Therefore, measurement accuracy can be improved without requiring skill. In addition, since the position of the probe is electrically detected, if the detection data is input to the calculation device and the correction data is calculated from the detection data in the calculation device, the inner diameter ball groove processing device after the measurement It is possible to automate the calculation input to the.
[0041]
Further , when the fitting shaft portion is fitted to the inner diameter portion of the workpiece and the flange portion is brought into contact with the abutting surface along the direction perpendicular to the axis of the workpiece, the degree of orthogonality between the abutting surface and the axis of the inner diameter portion is fitted. By controlling the orthogonality between the shaft part and the flange part, the line connecting the measuring element and the opposite side of the fitting shaft part to the measuring element along the radial direction of the fitting shaft part, that is, the measuring element The degree of orthogonality with respect to the inner diameter portion of the moving axis can be further improved. Therefore, measurement accuracy can be improved without requiring further skill.
[0042]
According to the second aspect of the present invention, when the guide projection is inserted into the inner diameter ball groove when the fitting shaft portion is fitted to the inner diameter portion of the workpiece, the guide projection is guided into the inner diameter ball groove, thereby The measuring element whose position matches the guide protrusion is also guided and inserted into the inner diameter ball groove. Therefore, the probe does not collide with a portion other than the inner diameter ball groove to cause damage or the like.
[0043]
According to the invention of claim 3 , the workpiece after the inner diameter ball groove processing is performed at the inner diameter ball groove processing apparatus for processing the inner diameter ball groove of the inner diameter portion of the workpiece at at least one of the stage change and the blade tool replacement. The inner diameter formed in the inner diameter part by fitting the fitting shaft part to the inner diameter part of the workpiece by holding the inner diameter ball groove measuring device in the holding part and holding it in the state where it is attached to the ball groove processing device. When the probe is inserted into the ball groove, the probe is displaced in accordance with the inner diameter ball groove, and this displacement is electrically detected to measure the inner diameter ball groove. As described above, since the fitting shaft portion is fitted to the inner diameter portion of the workpiece, a line connecting the measuring element and the opposite side of the fitting shaft portion with respect to the measuring element along the radial direction of the fitting shaft portion, that is, The degree of orthogonality with respect to the inner diameter portion of the moving axis of the probe can be secured. Therefore, measurement accuracy can be improved without requiring skill. In addition, since the position of the probe is electrically detected, if the detection data is input to the calculation device and the correction data is calculated from the detection data in the calculation device, the inner diameter ball groove processing device after the measurement It is possible to automate the calculation input to the.
[0044]
In addition , when the fitting shaft portion is fitted to the inner diameter portion of the workpiece and the flange portion is brought into contact with the contact surface along the direction perpendicular to the axis of the workpiece, the orthogonality between the contact surface and the inner diameter portion and the fitting shaft portion By controlling the orthogonality between the probe and the flange part, a line connecting the measuring element and the opposite side of the fitting shaft part to the measuring element along the radial direction of the fitting shaft part, that is, the moving axis of the measuring element The degree of orthogonality with respect to the inner diameter portion can be further improved. Therefore, measurement accuracy can be improved without requiring further skill.
[0045]
According to the fourth aspect of the present invention, when the guide projection is inserted into the inner diameter ball groove when the fitting shaft portion is fitted to the inner diameter portion of the workpiece, the guide projection is guided into the inner diameter ball groove, thereby The measuring element whose position matches the guide protrusion is also guided and inserted into the inner diameter ball groove. Therefore, the probe does not collide with a portion other than the inner diameter ball groove to cause damage or the like.
[Brief description of the drawings]
FIG. 1 is a side view, partly in section, showing an inner diameter ball groove measuring device and a workpiece according to an embodiment of the present invention.
FIG. 2 is a side view, partly in section, showing a workpiece measured by an inner diameter ball groove measuring device according to an embodiment of the present invention, an inner diameter ball groove processing device, and the like.
FIG. 3 is a side view, partly in section, showing a state in which a workpiece is measured by the inner diameter ball groove measuring device according to one embodiment of the present invention.
[Explanation of symbols]
11 Inner Diameter Ball Groove Measuring Device 12 Workpiece 18 Small Diameter Inner Diameter (Inner Diameter)
20 Contact surface 21 Inner diameter ball groove 23 Grasping part 24 Measuring part 30 Fitting shaft part 31 Flange part 32 Measuring element 33 Guide projection part 44 Inner diameter ball groove processing apparatus

Claims (4)

把持部と測定部とを有し前記把持部において把持されて手持ち操作される内径ボール溝測定装置であって、
前記測定部は、ワークの内径部に嵌合される嵌合軸部と、該嵌合軸部の外径側に該嵌合軸部の半径方向に移動可能に設けられ該嵌合軸部がワークの内径部に嵌合された状態で該内径部に形成された内径ボール溝に挿入されるとともに位置が電気的に検出される測定子とを有しており、
前記測定部には、前記嵌合軸部の前記把持部側に、前記ワークの軸直交方向に沿う当接面に当接するフランジ部が設けられていることを特徴とする内径ボール溝測定装置。
An inner diameter ball groove measuring device that has a gripping part and a measuring part and is gripped by the gripping part and operated by hand,
The measuring portion is provided with a fitting shaft portion fitted to the inner diameter portion of the work, and provided on the outer diameter side of the fitting shaft portion so as to be movable in a radial direction of the fitting shaft portion. position while being inserted into the inner diameter ball groove formed in the inner diameter portion at the fitted state the inner diameter portion of the workpiece has have a electrically detected as measuring element,
The inner diameter ball groove measuring device according to claim 1, wherein the measuring portion is provided with a flange portion that is in contact with a contact surface along the direction perpendicular to the axis of the workpiece on the gripping portion side of the fitting shaft portion .
前記嵌合軸部の前記測定子よりも先端側に前記内径ボール溝に挿入可能なガイド突起部が前記嵌合軸部の円周方向における位置を前記測定子に合わせて設けられていることを特徴とする請求項1記載の内径ボール溝測定装置。 A guide protrusion that can be inserted into the inner diameter ball groove is provided on the tip side of the fitting shaft portion with respect to the measuring member so that the position of the fitting shaft portion in the circumferential direction is aligned with the measuring member. The inner diameter ball groove measuring device according to claim 1, characterized in that: ワークの内径部の内径ボール溝を加工する内径ボール溝加工装置の段取り替え時および刃具交換時の少なくともいずれか一方において、嵌合軸部と該嵌合軸部の外径側に該嵌合軸部の半径方向に移動可能に設けられるとともに位置が電気的に検出される測定子とを有する測定部と把持部とを備えた内径ボール溝測定装置を前記把持部において把持して手持ち操作することにより、内径ボール溝加工後のワークを前記内径ボール溝加工装置から取り外すことなく、前記嵌合軸部を前記ワークの内径部に嵌合させつつ該内径部に形成された内径ボール溝に前記測定子を挿入して前記内径ボール溝を測定する方法であって、
前記内径ボール溝測定装置は前記嵌合軸部の前記把持部側にフランジ部を有しており、前記嵌合軸部を前記ワークの前記内径部に嵌合させて前記フランジ部を前記ワークの軸直交方向に沿う当接面に当接させることを特徴とする内径ボール溝測定方法。
The fitting shaft and the fitting shaft on the outer diameter side of the fitting shaft portion at least one of the setup change of the inner diameter ball groove processing device for machining the inner diameter ball groove of the inner diameter portion of the workpiece and the exchange of the cutting tool. An inner diameter ball groove measuring device provided with a measuring part having a measuring element which is provided so as to be movable in the radial direction of the part and whose position is electrically detected, and a gripping part, and is gripped by the gripping part and hand-held. Thus, without removing the work after the inner diameter ball groove processing from the inner diameter ball groove processing apparatus, the measurement is performed on the inner diameter ball groove formed on the inner diameter part while fitting the fitting shaft part on the inner diameter part of the work. A method of measuring the inner diameter ball groove by inserting a child,
The inner diameter ball groove measuring device has a flange portion on the gripping portion side of the fitting shaft portion, and the fitting shaft portion is fitted to the inner diameter portion of the workpiece so that the flange portion is placed on the workpiece. A method for measuring an inner diameter ball groove, wherein the contact surface is in contact with an abutting surface along the direction perpendicular to the axis .
前記内径ボール溝測定装置には前記嵌合軸部の前記測定子よりも先端側にガイド突起部が前記嵌合軸部の円周方向における位置を前記測定子に合わせて設けられており、前記嵌合軸部を前記ワークの前記内径部に嵌合させる際に前記ガイド突起部を前記内径ボール溝に挿入することを特徴とする請求項3記載の内径ボール溝測定方法。 In the inner diameter ball groove measuring device, a guide protrusion is provided on the tip side of the fitting shaft portion with respect to the measuring member so that the position of the fitting shaft portion in the circumferential direction is aligned with the measuring member, 4. The inner diameter ball groove measuring method according to claim 3, wherein the guide protrusion is inserted into the inner diameter ball groove when the fitting shaft portion is fitted to the inner diameter portion of the workpiece .
JP2003045880A 2003-02-24 2003-02-24 Inner diameter ball groove measuring apparatus and inner diameter ball groove measuring method Expired - Fee Related JP3920231B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2003045880A JP3920231B2 (en) 2003-02-24 2003-02-24 Inner diameter ball groove measuring apparatus and inner diameter ball groove measuring method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003045880A JP3920231B2 (en) 2003-02-24 2003-02-24 Inner diameter ball groove measuring apparatus and inner diameter ball groove measuring method

Publications (2)

Publication Number Publication Date
JP2004257750A JP2004257750A (en) 2004-09-16
JP3920231B2 true JP3920231B2 (en) 2007-05-30

Family

ID=33112577

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2003045880A Expired - Fee Related JP3920231B2 (en) 2003-02-24 2003-02-24 Inner diameter ball groove measuring apparatus and inner diameter ball groove measuring method

Country Status (1)

Country Link
JP (1) JP3920231B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102305584A (en) * 2011-08-25 2012-01-04 芜湖禾田汽车工业有限公司 Spherical center depth detection apparatus of automobile control arm ball and detection method thereof

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102004898B1 (en) * 2018-06-28 2019-07-29 일륭기공(주) Ball housing inner diameter and outer diameter measuring device
JP6670896B2 (en) * 2018-08-10 2020-03-25 本田技研工業株式会社 Measurement jig

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102305584A (en) * 2011-08-25 2012-01-04 芜湖禾田汽车工业有限公司 Spherical center depth detection apparatus of automobile control arm ball and detection method thereof

Also Published As

Publication number Publication date
JP2004257750A (en) 2004-09-16

Similar Documents

Publication Publication Date Title
JP3846542B2 (en) Automatic dimension measuring device with roundness measurement function
JP5916417B2 (en) Drilling machine
JP2006058961A (en) Finish machining device
JP4855327B2 (en) Tool and tool compensation method
JP2014226765A (en) Punching device and punching method
US20120068420A1 (en) Centering method for optical elements
JP3920231B2 (en) Inner diameter ball groove measuring apparatus and inner diameter ball groove measuring method
JP4898290B2 (en) Work transfer device with electric chuck with measurement function
JP4511862B2 (en) Glass tube manufacturing method and manufacturing apparatus
JP2004098213A (en) Tool position measuring method, nc machining method and nc machine tool
FR2665658A1 (en) METHOD AND TOOL FOR DIGITIZING DRILLING TEMPLATES.
JP3660920B2 (en) Machine tool and processing method
JP3662632B2 (en) Tapered surface machining method and taper surface machining apparatus for movable sheave for continuously variable transmission
JP5251429B2 (en) Grinder
JP5262584B2 (en) Grinder
JP5128511B2 (en) Drill work having a pair of oil supply holes, centering method of work with holes, and centering device
KR101666606B1 (en) Workpiece comprising clamp with sensor
KR101650257B1 (en) Device for measuring diameter of large work
JP2008001956A (en) Method and apparatus for high-frequency quenching of crankshaft
JP2017100244A (en) Positioning method for hollow work-piece
CN108788925B (en) Chuck axiality detects orthotic devices and includes its lathe
JP2004223617A (en) Work support device
CN113182940B (en) Spherical inner surface oblique generating method parameter selection method
JP2009113161A (en) Grinding method and grinder
JP6897395B2 (en) Processing equipment

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20051129

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20060905

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20061012

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20070206

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20070214

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20100223

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110223

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110223

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120223

Year of fee payment: 5

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130223

Year of fee payment: 6

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130223

Year of fee payment: 6

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20140223

Year of fee payment: 7

LAPS Cancellation because of no payment of annual fees