JP3976676B2 - Tool mounting device for lathe - Google Patents

Tool mounting device for lathe Download PDF

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Publication number
JP3976676B2
JP3976676B2 JP2002380159A JP2002380159A JP3976676B2 JP 3976676 B2 JP3976676 B2 JP 3976676B2 JP 2002380159 A JP2002380159 A JP 2002380159A JP 2002380159 A JP2002380159 A JP 2002380159A JP 3976676 B2 JP3976676 B2 JP 3976676B2
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JP
Japan
Prior art keywords
wedge
clamp shaft
clamp
tool
engaging portion
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Expired - Fee Related
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JP2002380159A
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Japanese (ja)
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JP2004209569A (en
Inventor
多喜夫 中村
義明 松本
達雄 清水
若月  博
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OM MFG CO., LTD.
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OM MFG CO., LTD.
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Priority to JP2002380159A priority Critical patent/JP3976676B2/en
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  • Cutting Tools, Boring Holders, And Turrets (AREA)

Description

【0001】
【発明の属する技術分野】
本発明は、ドローバー機構により旋削工具を着脱自在にラムに取り付ける旋盤における工具取付装置に関するものである。
【0002】
【従来の技術及び発明が解決しようとする課題】
旋盤における工具取付装置は、一般に次のような構成である。
【0003】
旋削工具の基端部に設けたテーパシャンク部が係合するテーパ状の取付係合部をラムに設け、このラムにドローバー駆動装置によって進退させるクランプ軸を駆動若しくは付勢により引動することで、前記テーパシャンク部のクランプ用突出部をクランプしてこのテーパシャンク部を前記取付係合部に押圧係合し前記工具をラムに着脱自在に取り付け固定するドローバークランプ機構を設けた構成としている。
【0004】
即ち、例えばバネによる付勢によってクランプ軸が引動されると、チャック部がテーパシャンク部のクランプ用突出部(プルトップ)をチャックしつつ引動し、このテーパシャンク部をラム下端のテーパ状の取付係合部に引き寄せ係合して工具をクランプ固定し、逆にこの引動付勢に抗してドローバー駆動装置の駆動によってクランプ軸を押圧すると、チャックが外れて工具を外せるように構成している。
【0005】
また、バネの付勢によってのみ引動チャックする構成とせずに、ドローバー駆動装置の駆動によってクランプ軸を引動して(勿論バネ付勢に加えて引動するようにしても良い。)チャックし、逆方向への駆動によってクランプ軸を押動すれば(バネ付勢に抗して押動するようにしても良い。)チャックが外れるように構成するものもある。
【0006】
いずれにしても、ドローバー機構のクランプ軸を引動することで工具をチャック保持する構成である。
【0007】
しかしながら、旋削工具をチャック固定して施削する場合、この工具の自重のみならず、旋削時には大きな負荷がかかる。
【0008】
即ち、大きな切削力が工具に加わるため、大きなクランプ力を必要とする。
【0009】
そのため、大きな引動力でクランプ軸を引動しなければならないため、これを引動駆動あるいはバネ付勢で引動する場合でも解除時にはこのバネ付勢に抗してクランプ軸を押動駆動する必要があることからこの押動駆動を行なうドローバー機構のドローバー駆動装置は、大きな駆動力の出せる大径の油圧シリンダ装置を用いなければならず、またそのため油圧二段シリンダとするものもある。
【0010】
従って、従来の旋盤における工具取付装置は、必ず油圧シリンダ装置を必要とするために油圧レス化できず、省エネや省資源が図れない。
【0011】
本発明は、油圧レス化の大きな阻害要因となっていた旋盤における工具取付装置の駆動源に着目し、従来の固定観念を打破してエアシリンダ装置によって旋盤における工具取付装置を実現できるようにしたもので、直に加わる大きな切削力に対して直接対向できる駆動力は生じ得ないエアシリンダ装置を駆動源としても、大きな切削力に十分耐えられ、これによって旋削機能に支障を与えずに油圧レス化が実現でき、省エネ,省資源を図れる画期的な旋盤における工具取付装置を提供することを目的としている。
【0012】
【課題を解決するための手段】
添付図面を参照して本発明の要旨を説明する。
【0013】
旋削工具1の基端部に設けたテーパシャンク部2が係合する取付係合部3をラム4に設け、このラム4にドローバー駆動装置5によって進退させるクランプ軸6を駆動若しくは付勢により引動することで、前記テーパシャンク部2のクランプ用突出部2Aをクランプしてこのテーパシャンク部2を前記取付係合部3に押圧係合し前記工具1をラム4に着脱自在に取り付け固定するドローバークランプ機構7を設けた旋盤における工具取付装置において、前記ドローバークランプ機構7のクランプ軸6を引動して工具1をラム4に取り付け固定した際、このクランプ軸6若しくはクランプ軸6と共に引動される引動部6Aにクサビ係合部8を設け、このクサビ係合部8に係合するクサビ部9を進退自在に設け、クサビ駆動装置10により進退させる前記クサビ部9を駆動若しくは付勢により移動させて前記クサビ係合部8に押圧係合することで、前記クランプ軸6の引動クランプ位置が係止保持されるクサビ機構11を備え、前記クサビ係合部8は、前記クランプ軸6と共に移動する前記引動部6として若しくは前記引動部6に、クサビ係合部形成部材8Aを、このクランプ軸6の軸受部8Bの端面に対して対向状態に設けて、この軸受部8Bと前記クランプ軸6と共に移動するクサビ係合部形成部材8Aとで、前記クサビ部9が挿入進退できる凹部若しくは孔部を形成することで構成し、前記クサビ部9若しくは前記クサビ係合部8には転動部13を設け、この転動部13が圧接してクサビ部9とクサビ係合部8とが押圧係合するように構成し、前記転動部13は、前記クサビ係合部8の対向内面若しくは前記クサビ部9の外面の対向面に設けたことを特徴とする旋盤における工具取付装置に係るものである。
【0014】
また、前記ドローバー駆動装置5及び前記クサビ駆動装置10を油圧シリンダ装置ではなく、エアシリンダ装置で構成したことを特徴とする請求項1記載の旋盤における工具取付装置に係るものである。
【0015】
また、少なくとも前記クサビ係合部8若しくは前記クサビ部9の前記転動部13が押圧係合する部分に、前記クサビ部9の進退方向に対して傾斜したクサビテーパ面12を形成したことを特徴とする請求項1,2のいずれか1項に記載の旋盤における工具取付装置に係るものである。
【0016】
また、前記クサビ部9を移動して前記クサビ係合部8に押圧係合した際には、前記クランプ軸6の引動クランプ位置が係止保持されて前記工具1は前記ラム4に強固に取り付け固定され、前記クサビ部9を戻動させた際には、前記クランプ軸6をクランプ方向とは逆方向のクランプ解除方向に移動し得るクランプ作動・解除用スペースが生じるように前記クサビ係合部8並びに前記クサビ部9を構成したことを特徴とする請求項1〜3のいずれか1項に記載の旋盤における工具取付装置に係るものである。
【0017】
また、前記クランプ軸6若しくはこのクランプ軸6と共に引動される引動部6Aに前記クサビ係合部8を移動調整自在に設けて、前記クサビ機構11による前記クランプ軸6の引動係止保持位置を微調整し得るように構成したことを特徴とする請求項1〜4のいずれか1項に記載の旋盤における工具取付装置に係るものである。
【0018】
また、前記転動部13は前記クサビ係合部8の対向内面若しくは前記クサビ部9の対向外面の一側のクサビ部9の進退方向に複数設け、反対側にも複数若しくは前記一側の複数の転動部13間の対向位置に少なくとも設けたことを特徴とする請求項1〜5のいずれか1項に記載の旋盤における工具取付装置に係るものである。
【0019】
【発明の実施の形態】
好適と考える本発明の実施の形態(発明をどのように実施するか)を、図面に基づいてその作用効果を示して簡単に説明する。
【0020】
工具1をクランプ固定する場合は、従来通りドローバークランプ機構7によってクランプ固定、即ち、クランプ軸6を付勢若しくはドローバー駆動機構5の駆動によって引動してクランプ固定するが、この際、更にこの引動した状態でクサビ機構11によってこのクランプ軸6の引動位置を係止保持する。
【0021】
即ち、クランプ軸6を引動した際、クサビ係合部8も所定の位置まで引動され、このクサビ係合部8に対してクサビ部9を付勢若しくは押圧駆動装置10の駆動により、例えばクランプ軸6の進退方向と直交する方向に移動させてクサビ係合部8にクサビ部9を押圧係合させる。
【0022】
これにより工具1はクランプ軸6の引動によって取付係合部3に係合固定される上、クサビ機構11によってこのクランプ軸6の引動位置がクサビロックされることとなるため、旋削加工時に大きな切削力がこの工具1に加わった場合、この大きな切削力に対してクランプ軸6を引動した付勢力やドローバー駆動装置5の駆動力が直接には対向できなくても、クサビ機構11のクサビ係合部8とクサビ部9との係合によってこのクランプ軸6の引動位置がロックされているため、たとえ大きな切削力でもこの力が直ちにこのクサビ係合部8とクサビ部9との係合を離脱させる力とならないため、クサビ係合部8とクサビ部9との係合のための付勢力や駆動力が十分に大きくなくても、またクランプ軸6の引動のための付勢力や駆動力が十分に大きくなくても、大きな切削力に十分に抗し得ることとなる。
【0023】
従って、ドローバー駆動装置5もクサビ駆動装置10も大きな切削力に直接対向し得るような大きな力を生じ得る油圧シリンダ装置でなくても、エアシリンダ装置でも構成でき、油圧レス化を実現できることとなる。
【0024】
即ち、言い換えれば、従来は工具を直接引っ張り上げていたため、切削力に対向する大きな力を必要としたが、クランプ装置にクサビ機構を持たせることにより、クサビのセルフロック機構によって、外力とクランプ軸6の軸力が作用・反作用の関係となり、シリンダの推力に依存しないため、シリンダ推力の小さなエアシリンダで十分となり、油圧レスが可能となると共に、クサビそのものが工具1の落下防止となるため安全性にも秀れる。
【0025】
しかも前記クサビ部9若しくは前記クサビ係合部8には転動部13(例えばローラ)を設け、この転動部13が例えば押圧係合部分に形成したテーパ面12に圧接して係止するため、このクサビの食い付きは防止され、スムーズにクサビ部9の進退駆動が行え、クサビ係合の係脱がスムーズに行えることとなる。
【0026】
また、更にクサビ駆動装置10の引動駆動力と押動駆動力が同等である場合(転動部13によって圧接してクサビ係合する構成とせず)、単なるテーパ面接によるクサビ係合させる構成とすると、動摩擦より静止摩擦の方がはるかに大きくなってしまうため、引動してクサビ係合させる場合、同等の力で押動駆動してもクサビ係合が外れない場合がある。
【0027】
そのため、エアシリンダ装置の受圧面積が多少異なる程度ではこの問題が解消し得ないことから動摩擦と静止摩擦に大きな差がある場合には、クサビ係合させる方向(例えば引動)の駆動力を弱める減圧回路を必要とする場合があるが、この点転動部13によって圧接しクサビ係合させることで動摩擦と静止摩擦の差や静止摩擦を極力小さくできることから、このような減圧回路を構じる必要もなく、常にスムーズにクサビ駆動装置10の駆動によりクサビ係合の係脱が行えることとなる。
【0028】
【実施例】
本発明の具体的な実施例について図面に基づいて説明する。
【0029】
本実施例では、ドローバークランプ機構7のドローバー駆動装置5も、クサビ機構11のクサビ駆動装置10も、油圧シリンダ装置ではなく、エアシリン装置で構成し油圧レス化を実現した実施例であって、いずれもこのエアシリンダ装置によりクランプ軸6あるいはクサビ部9を進退駆動制御する構成としている。
【0030】
即ち、移動制御自在に設けたラム4の下端部にテーパ状の取付係合部3を設け、ドローバークランプ機構7のドローバー駆動装置5によって進退させるクランプ軸6を引動駆動することで、テーパシャンク部2のクランプ用突出部2Aをクランプしてこのテーパシャンク部2を前記取付係合部3に押圧係合し前記工具1をラム4に着脱自在に取り付け固定するドローバークランプ機構7を設けた構成とし、このドローバークランプ機構7のクランプ軸6を引動して工具1をラム4に取り付け固定した際、クランプ軸6と共に引動されて所定位置に位置する引動部6Aにクサビ係合部8を設け、このクサビ係合部8に係合するクサビ部9をクサビ駆動装置10によりクランプ軸6の進退方向と直交する方向に進退駆動させて前記クサビ係合部8に押圧係合することで、前記クランプ軸6の引動クランプ位置が係止保持されるクサビ機構11を設けた構成としている。
【0031】
具体的には前記クサビ係合部8の押圧係合部分にクサビ部9の進退方向に対して傾斜したクサビテーパ面12を形成している。即ち、クサビ係合部8は、クランプ軸6と連動して進退させるクサビ係合部形成部材8Aを引動部6Aとしてクランプ軸6に固定し、この形成部材8Aとクランプ軸6の軸受部8Bとによって、クサビ部9が挿入進退できる凹部あるいは孔部を形成することで構成し、この係合部(凹部あるいは孔部)の内面の一方に前記テーパ面12を形成し他方をストレート面(本実施例では形成部材8Aにテーパ面12を形成し、不動の軸受部8Bの前記形成部材8Aと対向する端面をストレート面)としている。
【0032】
また、本実施例では、クサビ部9の外面に前記クサビ係合部8の内面に転動自在に当接する転動部13(回転ローラ)を設け、クサビ部9の本体部よりやや突出状態にして回動自在に設けたこの回転ローラ13がクサビ係合部8の内面に点当り当接するように構成し、押圧係合時の食い付きを防止している。
【0033】
更に具体的に説明すれば、この回転ローラ13は、クサビ部9の外面の対向面夫々に対して設けているが、クサビ係合部8の一側内面となる軸受部8B端面側のクサビ部9の外面には進退方向に複数対設け、反対側のクサビ係合部形成部材8A側のクサビ部9外面には前記複数対の回転ローラ13間の対向位置に一対設けている。
【0034】
従って、この軸受部8B側の複数対の回転ローラ13を軸受部8B端面に当接させて支承しつつ反対側の対の回転ローラ13で形成部材8Aに設けたテーパ面12に押圧係合するように構成している。
【0035】
従って、クサビ部9が移動してこのテーパ面12にクサビ部9の回転ローラ13が押圧することでクサビ係合部8にクサビ部9がクサビ係止するように構成し、スムーズにクサビ部9の進退駆動が行え、クサビ係合の係脱がスムーズに行えるようにしている。
【0036】
また、クサビ駆動装置10の引動駆動力と押動駆動力が同等である場合(転動部13によって圧接してクサビ係合する構成とせず)、単なるテーパ面接によるクサビ係合とすると、動摩擦より静止摩擦の方がはるかに大きくなってしまうため、引動してクサビ係合させる場合、同等の力で押動駆動してもクサビ係合が外れない場合があり、そのため、エアシリンダ装置の受圧面積が多少異なる程度ではこの問題が解消し得ないことから動摩擦と静止摩擦に大きな差がある場合には、クサビ係合させる方向(例えば引動)の駆動力を弱める減圧回路をクサビ駆動装置10に設ける必要とする場合がある。しかし、本実施例では、この点転動部13によって圧接しクサビ係合させることで動摩擦と静止摩擦の差や静止摩擦を極力小さくできることから、このような減圧回路を構じる必要もなく、常にスムーズにクサビ駆動装置10の駆動によりクサビ係合の係脱が行えるように構成している。
【0037】
また、しかも常にクサビ部9の一側は進退方向に対して複数の転動部13で支承されつつ、この複数の転動部13間の対向位置に設けた転動部13によってテーパ面12に押圧係止するため、できるだけクサビ部9自体に回動力が生じないようにし、仮にクサビ部9に回動力が生じても転動部13で受け、スムーズにクサビ部9の進退駆動が行え、クサビ係合の係脱がスムーズに行えるようにしている。
【0038】
また、前記クサビ部9を移動して前記クサビ係合部8に押圧係合(クサビ係止)した際には、前記クランプ軸6の引動クランプ位置が係止保持されて前記工具1は前記ラム4に強固に取り付け固定され、前記クサビ部9を戻動させた際には、前記クランプ軸6をクランプ方向とは逆方向のクランプ解除方向に移動し得るクランプ作動・解除用スペースが生じるように前記クサビ係合部8並びに前記クサビ部9の形状を設定している。
【0039】
具体的には、クサビ係合部形成部材8Aに軸受部8Bの端面との対向距離が変化することとなる突出部8Cをクランプ軸6をまたいで対向位置に2箇所設け、クサビ部9をクサビ駆動装置10によりクランプ軸6の進退方向と直交する方向に引動駆動した際、このクサビ部9の回転ローラ13が前記突出部8C上に乗り上がり、この突出部8Cに設けたテーパ面12に回転ローラ13が圧接してクサビ係止するように構成し、逆にクサビ駆動装置10によって反対方向に押圧駆動するとテーパ面12での係止が外れ、クサビ部9の回転ローラ13は突出部8Cより落ち、このクサビ部9に対して、クランプ軸6に設けたクサビ係合部形成部材8Aの移動が許容されるクリアランスが形成される構成とし、回転ローラ13が突出部8Cから外れ落ちて押圧係合が解除された状態では、クランプ作動・解除用のスペースが確保される形状にクサビ係合部8とクサビ部9を設計している。
【0040】
また、本実施例では、クサビ部9は補助バネ14の付勢に加えて引動することで回転ローラ13がテーパ面12に係止し、補助バネ14に抗して押動することで回転ローラ13とテーパ面12の係止が外れ、回転ローラ13はテーパ面12を形成した突出部8Cから外れ落ちると共に左右一対の回転ローラ13を支点に係合部奥側へやや回動し、前記クランプ作動・解除のスペースが形成されるように構成している。
【0041】
また、本実施例では、クサビ係合部8、即ちクサビ係合部形成部材8Aを移動調整自在に設けて、前記クサビ機構11による前記クランプ軸6の引動係止保持位置を微調整し得るように構成している。即ち、クサビ係合部8を形成する前記形成部材8Aはクランプ軸6に設けたネジ部に螺動自在に設けられ、この螺動調整した位置をダブルナット方式で固定ナット8Dで固定する構成しと、クランプ軸6を引動して工具1を取付固定した位置で、工具1が弛み外れることなく、クサビ機構11のクサビ係合によって更に微妙に引き上げロックされてクサビ係止が確実に行なわれるように構成している。
【0042】
、本発明は、本実施例に限られるものではなく、各構成要件の具体的構成は適宜設計し得るものである。
【0043】
【発明の効果】
本発明は上述のように構成したから、直に加わる大きな切削力に対して直接対向できる駆動力は生じ得ないエアシリンダ装置を駆動源としても、大きな切削力に十分耐えられ、これによって旋削機能に支障を与えずに油圧レス化が実現でき、省エネ,省資源を図れる画期的な旋盤における工具取付装置となる。
【0044】
即ち、工具はクランプ軸の引動によって取付係合部に係合固定される上、クサビ機構によってこのクランプ軸の引動位置が係合保持されることとなるため、旋削加工時に大きな切削力がこの工具に加わった場合、この大きな切削力に対してクランプ軸を引動した付勢力やドローバー駆動装置の駆動力が直接には対向できなくても、クサビ機構のクサビ係合部とクサビ部との係合によってこのクランプ軸の引動位置がロックされているため、たとえ大きな切削力でもこの力が直ちにこのクサビ係合部とクサビ部との係合を離脱させる力とならないため、クサビ係合部とクサビ部との係合のための付勢力や駆動力が十分に大きくなくても、またクランプ軸の引動のための付勢力や駆動力が十分に大きくなくても、大きな切削力に十分に抗し得ることとなる。
【0045】
従って、ドローバー駆動装置もクサビ駆動装置も大きな切削力に直接対向し得るような大きな力を生じ得る油圧シリンダ装置でなくても、引動チャックでき、またクサビ係脱し得るに十分なエアシリンダ装置でも構成でき、油圧レス化を実現できる画期的な旋盤における工具取付装置となる。
【0046】
しかも前記クサビ部若しくは前記クサビ係合部には転動部(例えばローラ)を設け、この転動部がテーパ面に圧接してクサビ部とクサビ係合部とが押圧係合するためクサビの食い付きが防止され、スムーズにクサビ部の進退駆動が行え、クサビ係合の係脱がスムーズに行えることとなる。
【0047】
また、更にクサビ駆動装置の引動駆動力と押動駆動力が同等である場合(転動部によって圧接してクサビ係合する構成とせず)、単なるテーパ面接によるクサビ係合とすると、動摩擦より静止摩擦の方がはるかに大きくなってしまうため、引動してクサビ係合させる場合、同等の力で押動駆動してもクサビ係合が外れない場合があるが、転動部によって圧接しクサビ係合させることで動摩擦と静止摩擦の差や静止摩擦を極力小さくできることから、減圧回路を構じる必要もなく、常にスムーズにクサビ駆動装置によりクサビ係合の係脱が行えることとなる極めて画期的な旋盤における工具取付装置となる。
【0048】
また、請求項2,3,4記載の発明においては、簡易な構成にして前記作用・効果が確実に発揮される本発明を一層容易に実現できる実用性に秀れた画期的な旋盤における工具取付装置となる。
【0049】
また、請求項5記載の発明においては、クランプ機能が常に保持され、且つ良好なクサビ機能が係脱自在に発揮されるように微調整できるため、極めて実用性に秀れる。
【0050】
また、請求項6記載の発明においては、一層スムーズにクサビ部の進退駆動が行え、クサビ係合の係脱がスムーズに行える秀れた旋盤における工具取付装置となる。
【図面の簡単な説明】
【図1】 本実施例のクランプ時のクサビ係止状態の説明正断面図である。
【図2】 本実施例のクランプ時のクサビ係止状態の要部の拡大正断面図である。
【図3】 本実施例のクランプ時のクサビ係止状態の要部の拡大説明平断面図である。
【図4】 本実施例の(クサビ係止解除時での)クランプ解除状態を示す説明正断面図である。
【図5】 本実施例の(クサビ係止解除時での)クランプ解除状態を示す要部の拡大説明正断面図である。
【図6】 本実施例の(クサビ係止解除時での)クランプ解除状態を示す要部の拡大説明平断面図である。
【符号の説明】
1 工具
2 テーパシャンク部
2A クランプ用突出部
3 取付係合部
4 ラム
5 ドローバー駆動装置
6 クランプ軸
6A 引動部
7 ドローバークランプ機構
8 クサビ係合部
9 クサビ部
10 クサビ駆動装置
11 クサビ機構
12 テーパ面
13 転動部(回転ローラ)
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a tool attachment device in a lathe that attaches a turning tool to a ram in a detachable manner by a draw bar mechanism.
[0002]
[Prior art and problems to be solved by the invention]
A tool mounting apparatus in a lathe generally has the following configuration.
[0003]
By providing the ram with a tapered mounting engagement portion that engages with a tapered shank portion provided at the base end portion of the turning tool, and pulling the ram with a drawbar drive device by driving or biasing it, A clamp bar projecting portion of the taper shank portion is clamped, the taper shank portion is pressed and engaged with the mounting engagement portion, and a draw bar clamp mechanism for detachably mounting and fixing the tool on the ram is provided.
[0004]
That is, for example, when the clamp shaft is pulled by urging by a spring, the chuck portion moves while chucking the clamp protrusion (pull top) of the taper shank portion, and this taper shank portion is attached to the taper-shaped attachment member at the lower end of the ram. The tool is clamped and fixed by pulling and engaging the joint, and conversely, when the clamp shaft is pressed by driving the draw bar drive device against this pulling bias, the chuck is detached and the tool can be removed.
[0005]
In addition, instead of a configuration in which the chucking is performed only by the biasing of the spring, the clamp shaft is pulled by driving the draw bar driving device (of course, it may be pulled in addition to the spring biasing) and chucked in the reverse direction. In some cases, the chuck may be detached if the clamp shaft is pushed by driving (to be pushed against the spring bias).
[0006]
In any case, the tool is chucked by pulling the clamp shaft of the draw bar mechanism.
[0007]
However, when machining with the turning tool fixed to the chuck, not only its own weight but also a large load is applied during turning.
[0008]
That is, since a large cutting force is applied to the tool, a large clamping force is required.
[0009]
For this reason, the clamp shaft must be pulled with a large pulling force. Therefore, even when this is driven by a pull drive or a spring bias, it is necessary to push the clamp shaft against the spring bias when releasing. Therefore, the drawbar drive device of the drawbar mechanism that performs this pushing drive must use a large-diameter hydraulic cylinder device that can generate a large driving force, and there is also a hydraulic two-stage cylinder.
[0010]
Therefore, the conventional tool mounting device in a lathe requires a hydraulic cylinder device, so that it cannot be hydraulicless, and energy and resources cannot be saved.
[0011]
The present invention focuses on the driving source of a tool mounting device in a lathe, which has been a major impediment to the reduction of hydraulic pressure, and breaks down the conventional fixed idea so that a tool mounting device in a lathe can be realized by an air cylinder device. However, even if an air cylinder device that cannot directly face the large cutting force applied directly can be generated, it can sufficiently withstand the large cutting force, and without hydraulic pressure without hindering the turning function. The purpose is to provide an innovative tool mounting device in a lathe that can be realized and can save energy and resources.
[0012]
[Means for Solving the Problems]
The gist of the present invention will be described with reference to the accompanying drawings.
[0013]
A mounting engagement portion 3 that engages a tapered shank portion 2 provided at the base end portion of the turning tool 1 is provided in the ram 4, and a clamp shaft 6 that is advanced and retracted by the draw bar driving device 5 is driven or biased by the ram 4. Thus, the draw bar for clamping the projecting portion 2A for clamping of the taper shank portion 2 and press-engaging the taper shank portion 2 with the mounting engagement portion 3 so that the tool 1 can be detachably attached to the ram 4 and fixed. In a tool mounting device in a lathe provided with a clamp mechanism 7, when the clamp shaft 6 of the draw bar clamp mechanism 7 is pulled and the tool 1 is mounted and fixed to the ram 4, the pulling motion that is pulled together with the clamp shaft 6 or the clamp shaft 6. The wedge engaging portion 8 is provided in the portion 6A, and the wedge portion 9 that engages with the wedge engaging portion 8 is provided so as to freely advance and retract, and is advanced and retracted by the wedge driving device 10. The wedge portion 9 is moved by driving or biasing, and is pressed and engaged with the wedge engaging portion 8, thereby providing a wedge mechanism 11 that holds and holds the pulling clamp position of the clamp shaft 6. engaging portion 8, the引動portion 6 and to or the引動unit 6 which moves together with the clamp shaft 6, the wedge engagement portion forming member 8A, the opposed state with respect to the end face of the bearing portion 8B of the clamp shaft 6 of this By providing the bearing portion 8B and the wedge engaging portion forming member 8A that moves together with the clamp shaft 6, the wedge portion 9 is configured to form a recess or a hole into which the wedge portion 9 can be inserted and advanced, and the wedge portion 9 or The wedge engaging portion 8 is provided with a rolling portion 13, and the rolling portion 13 is press-contacted so that the wedge portion 9 and the wedge engaging portion 8 are press-engaged. The opposing inner surface of the wedge engaging portion 8 Properly is one of the tool mounting devices in the lathe, characterized in that the only set on the facing surface of the outer surface of the wedge portion 9.
[0014]
2. The tool mounting device in a lathe according to claim 1, wherein the draw bar driving device 5 and the wedge driving device 10 are constituted by air cylinder devices instead of hydraulic cylinder devices.
[0015]
Further, a wedge taper surface 12 inclined with respect to the advancing and retreating direction of the wedge portion 9 is formed at least in a portion where the rolling portion 13 of the wedge engaging portion 8 or the wedge portion 9 is pressed and engaged. It concerns on the tool attachment apparatus in the lathe of any one of Claims 1,2.
[0016]
When the wedge portion 9 is moved and pressed into the wedge engaging portion 8, the pulling clamp position of the clamp shaft 6 is locked and held, and the tool 1 is firmly attached to the ram 4. When the wedge portion 9 is fixed and the wedge portion 9 is moved back, the wedge engaging portion is formed such that a space for clamping operation / release is generated that can move the clamp shaft 6 in a clamp releasing direction opposite to the clamping direction. 8 and the wedge part 9 are configured according to the tool mounting device in a lathe according to any one of claims 1 to 3.
[0017]
Further, the wedge engaging portion 8 is provided in the clamp shaft 6 or a pulling portion 6A that is pulled together with the clamp shaft 6 so as to be movable and adjustable, so that the wedge lock mechanism 11 can move the holding position of the clamp shaft 6 slightly. The tool mounting device for a lathe according to any one of claims 1 to 4, wherein the tool mounting device is configured to be adjustable.
[0018]
Further, a plurality of rolling portions 13 are provided in the advancing and retreating direction of the wedge portion 9 on one side of the opposed inner surface of the wedge engaging portion 8 or the opposed outer surface of the wedge portion 9, and plural on the opposite side or plural on the one side. The tool attachment device for a lathe according to any one of claims 1 to 5, wherein the tool attachment device is provided at least at a position opposite to each other between the rolling portions 13.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention (how to carry out the invention) considered to be suitable will be briefly described with reference to the drawings, showing its effects.
[0020]
When the tool 1 is clamped and fixed, it is clamped by the drawbar clamp mechanism 7 as usual, that is, the clamp shaft 6 is urged or driven by the drawbar drive mechanism 5 to be clamped. In this state, the wedge mechanism 11 locks and holds the pulling position of the clamp shaft 6.
[0021]
That is, when the clamp shaft 6 is moved, the wedge engaging portion 8 is also moved to a predetermined position, and the wedge portion 9 is urged against the wedge engaging portion 8 or driven by the pressing drive device 10, for example, the clamp shaft. The wedge portion 9 is pressed and engaged with the wedge engaging portion 8 by moving in a direction orthogonal to the forward / backward direction 6.
[0022]
As a result, the tool 1 is engaged and fixed to the mounting engagement portion 3 by the pulling of the clamp shaft 6, and the wedge mechanism 11 is wedge-locked by the wedge mechanism 11. When a force is applied to the tool 1, the wedge engagement of the wedge mechanism 11 is possible even if the urging force that pulled the clamp shaft 6 and the drive force of the draw bar drive device 5 cannot directly face this large cutting force. Since the pulling position of the clamp shaft 6 is locked by the engagement between the portion 8 and the wedge portion 9, even if a large cutting force is applied, this force immediately releases the engagement between the wedge engaging portion 8 and the wedge portion 9. Therefore, even if the urging force or driving force for engaging the wedge engaging portion 8 and the wedge portion 9 is not sufficiently large, the urging force or driving force for pulling the clamp shaft 6 is not sufficient. Big enough Even without this, it can sufficiently resist a large cutting force.
[0023]
Therefore, both the draw bar driving device 5 and the wedge driving device 10 can be configured by an air cylinder device, not a hydraulic cylinder device that can generate a large force that can directly face a large cutting force, and the hydraulic pressure can be reduced. .
[0024]
In other words, in the past, the tool was directly pulled up, so a large force opposed to the cutting force was required, but by providing the wedge mechanism in the clamping device, the wedge force self-locking mechanism allowed the external force and the clamping shaft to Since the axial force of 6 is an action / reaction relationship and does not depend on the thrust of the cylinder, an air cylinder with a small cylinder thrust is sufficient, making it possible to eliminate hydraulic pressure, and the wedge itself prevents the tool 1 from dropping. It excels in sex.
[0025]
Moreover, the wedge portion 9 or the wedge engaging portion 8 is provided with a rolling portion 13 (for example, a roller), and the rolling portion 13 is pressed against and locked to the tapered surface 12 formed at the pressing engagement portion, for example. The wedge is prevented from biting, and the wedge portion 9 can be smoothly advanced and retracted, and the wedge engagement can be smoothly engaged and disengaged.
[0026]
Further, when the wedge driving force and the pushing driving force of the wedge driving device 10 are equal (not the configuration in which the wedge is pressed by the rolling portion 13 and the wedge is engaged), the wedge is simply engaged by the taper surface contact. Since the static friction is much larger than the dynamic friction, the wedge engagement may not be disengaged even if the wedge is engaged by being driven by the same force.
[0027]
Therefore, this problem cannot be solved if the pressure receiving area of the air cylinder device is slightly different. Therefore, if there is a large difference between the dynamic friction and the static friction, the pressure reduction that weakens the driving force in the direction of wedge engagement (for example, pulling). Although a circuit may be required, it is necessary to construct such a decompression circuit because the difference between dynamic friction and static friction and static friction can be reduced as much as possible by press-contacting and wedge-engaging with this point rolling part 13 Accordingly, the wedge engagement can be engaged and disengaged by always driving the wedge driving device 10 smoothly.
[0028]
【Example】
Specific embodiments of the present invention will be described with reference to the drawings.
[0029]
In this embodiment, also drawbar driving device 5 of the drawbar a clamping mechanism 7, also the wedge driver 10 of the wedge mechanism 11, rather than a hydraulic cylinder device, an example of realizing a hydraulic-less constituted by Eashirin da device, In any case, the clamp shaft 6 or the wedge portion 9 is controlled to advance and retract by this air cylinder device.
[0030]
In other words, a tapered attachment engaging portion 3 is provided at the lower end portion of the ram 4 provided so as to be movable, and the taper shank portion is driven by pulling and driving the clamp shaft 6 that is advanced and retracted by the draw bar drive device 5 of the draw bar clamp mechanism 7. 2 is provided with a draw bar clamp mechanism 7 that clamps the clamp projection 2A, presses and engages the taper shank 2 with the mounting engagement 3 and attaches and fixes the tool 1 to the ram 4 in a detachable manner. When the clamp shaft 6 of the draw bar clamp mechanism 7 is pulled and the tool 1 is attached and fixed to the ram 4, the wedge engaging portion 8 is provided in the pulling portion 6A which is pulled together with the clamp shaft 6 and located at a predetermined position. The wedge portion 9 engaged with the wedge engaging portion 8 is driven to advance and retract in the direction orthogonal to the advancing and retreating direction of the clamp shaft 6 by the wedge driving device 10. By pressure coefficient case, 引動 clamping position of the clamp shaft 6 has a configuration in which a wedge mechanism 11 to be locking retained.
[0031]
Specifically, a wedge taper surface 12 that is inclined with respect to the advancing and retreating direction of the wedge portion 9 is formed at the pressing engagement portion of the wedge engaging portion 8. That is, the wedge engaging portion 8 fixes a wedge engaging portion forming member 8A that moves forward and backward in conjunction with the clamp shaft 6 to the clamp shaft 6 as a moving portion 6A, and this forming member 8A and the bearing portion 8B of the clamp shaft 6 Thus, the wedge portion 9 is formed by forming a concave portion or a hole portion into which the insert portion can be inserted and retracted. The tapered surface 12 is formed on one of the inner surfaces of the engaging portion (the concave portion or the hole portion), and the other is a straight surface (this embodiment). In the example, the tapered surface 12 is formed on the forming member 8A, and the end surface of the stationary bearing portion 8B facing the forming member 8A is a straight surface.
[0032]
Further, in this embodiment, a rolling portion 13 (rotating roller) is provided on the outer surface of the wedge portion 9 so as to be able to roll on the inner surface of the wedge engaging portion 8 so as to protrude slightly from the main body portion of the wedge portion 9. The rotating roller 13 provided so as to be rotatable is configured to abut against the inner surface of the wedge engaging portion 8 to prevent biting during press engagement.
[0033]
More specifically, the rotating roller 13 is provided for each of the opposing surfaces of the outer surface of the wedge portion 9, but the wedge portion on the end surface side of the bearing portion 8 </ b> B serving as one inner surface of the wedge engaging portion 8. A plurality of pairs are provided on the outer surface of 9 in the advancing and retreating direction, and a pair is provided on the outer surface of the wedge portion 9 on the opposite side of the wedge engaging portion forming member 8 </ b> A at a position facing the plurality of pairs of rotating rollers 13.
[0034]
Therefore, a plurality of pairs of rotating rollers 13 on the bearing portion 8B side are brought into contact with and supported by the end surface of the bearing portion 8B, and are pressed and engaged with the tapered surfaces 12 provided on the forming member 8A by the pair of rotating rollers 13 on the opposite side. It is configured as follows.
[0035]
Accordingly, the wedge portion 9 is moved and the rotating roller 13 of the wedge portion 9 is pressed against the tapered surface 12 so that the wedge portion 9 is wedge-engaged with the wedge engaging portion 8. The forward / backward drive can be performed so that the wedge engagement can be smoothly engaged and disengaged.
[0036]
Further, when the driving force of the wedge driving device 10 is equal to the driving force of the pushing force (not configured to be pressed and wedge-engaged by the rolling portion 13), if the wedge is simply engaged by the taper surface contact, Since the static friction becomes much larger, the wedge engagement may not be disengaged even if the wedge is engaged by pulling even if it is driven with the same force. Therefore, the pressure receiving area of the air cylinder device Since this problem cannot be solved with a slightly different degree, if there is a large difference between dynamic friction and static friction, a pressure reducing circuit that weakens the driving force in the direction of wedge engagement (for example, pulling) is provided in the wedge driving device 10 You may need it. However, in this embodiment, the difference between the dynamic friction and the static friction and the static friction can be reduced as much as possible by press-contacting and wedge-engaging with the point rolling portion 13, so there is no need to construct such a decompression circuit, It is configured such that the wedge engagement can be engaged and disengaged by driving the wedge driving device 10 smoothly and constantly.
[0037]
Moreover, one side of the wedge portion 9 is always supported by the plurality of rolling portions 13 in the advancing and retreating direction, and the tapered portion 12 is formed on the tapered surface 12 by the rolling portions 13 provided at the opposing positions between the plurality of rolling portions 13. Since it is pressed and locked, the wedge part 9 itself is prevented from generating rotational force as much as possible. Even if the wedge part 9 has rotational force, it is received by the rolling part 13, and the wedge part 9 can be smoothly driven forward and backward. Engagement / disengagement can be performed smoothly.
[0038]
Further, when the wedge portion 9 is moved and pressed and engaged (wedge locking) with the wedge engaging portion 8, the pulling clamp position of the clamp shaft 6 is locked and held, and the tool 1 is moved to the ram. When the wedge portion 9 is moved back and forth, the clamping shaft 6 is moved and moved in the clamping release direction opposite to the clamping direction so that a space for clamping operation / release is generated. The shapes of the wedge engaging portion 8 and the wedge portion 9 are set.
[0039]
Specifically, the wedge engaging portion forming member 8A is provided with two projecting portions 8C that face the end surface of the bearing portion 8B at opposite positions across the clamp shaft 6, and the wedge portion 9 is wedged. When the drive device 10 pulls and drives the clamp shaft 6 in a direction perpendicular to the advancing / retreating direction, the rotating roller 13 of the wedge portion 9 rides on the protruding portion 8C and rotates on the tapered surface 12 provided on the protruding portion 8C. The roller 13 is configured to come into pressure contact with the wedge, and conversely, when the wedge driving device 10 is driven in the opposite direction, the locking at the tapered surface 12 is released, and the rotating roller 13 of the wedge portion 9 is released from the protrusion 8C. The wedge portion 9 is configured such that a clearance that allows movement of the wedge engaging portion forming member 8A provided on the clamp shaft 6 is formed with respect to the wedge portion 9, and the rotating roller 13 is separated from the protruding portion 8C and pressed. The match is released In this state, the wedge engaging portion 8 and the wedge portion 9 are designed in a shape that ensures a space for clamping operation / release.
[0040]
In this embodiment, the wedge portion 9 is pulled in addition to the urging of the auxiliary spring 14 so that the rotating roller 13 is locked to the tapered surface 12 and is pushed against the auxiliary spring 14 to rotate the rotating roller 13. 13 and the tapered surface 12 are disengaged, and the rotating roller 13 falls off from the projecting portion 8C forming the tapered surface 12, and rotates slightly toward the back of the engaging portion with the pair of left and right rotating rollers 13 as fulcrums. An operation / release space is formed.
[0041]
Further, in this embodiment, the wedge engaging portion 8, that is, the wedge engaging portion forming member 8A, is provided so as to be movable and adjustable, so that the movement lock holding position of the clamp shaft 6 by the wedge mechanism 11 can be finely adjusted. It is configured. In other words, the forming member 8A forming the wedge engaging portion 8 is provided so as to be freely screwed on a screw portion provided on the clamp shaft 6, and the screw-adjusted position is fixed by a fixing nut 8D by a double nut method. Then, at the position where the clamp 1 is pulled and the tool 1 is mounted and fixed, the tool 1 does not loosen and is further lifted and locked by the wedge engagement of the wedge mechanism 11 so that the wedge is reliably engaged. It is configured.
[0042]
Note that the present invention is not limited to this embodiment, and the specific configuration of each component can be designed as appropriate.
[0043]
【The invention's effect】
Since the present invention is configured as described above, it can sufficiently withstand a large cutting force even with an air cylinder device that cannot generate a driving force that can be directly opposed to a directly applied large cutting force. This is a revolutionary tool mounting device in a lathe that can reduce oil pressure without causing any problems, and can save energy and resources.
[0044]
That is, the tool is engaged and fixed to the mounting engagement portion by the pulling movement of the clamp shaft, and the pulling position of the clamp shaft is engaged and held by the wedge mechanism, so that a large cutting force is applied during turning. If the urging force that pulled the clamp shaft against the large cutting force or the drive force of the drawbar drive device cannot be directly opposed to each other, the wedge engagement portion of the wedge mechanism is engaged with the wedge portion. Since the pulling position of the clamp shaft is locked by this, even if a large cutting force is applied, this force does not immediately become a force for releasing the engagement between the wedge engaging portion and the wedge portion. Therefore, the wedge engaging portion and the wedge portion Even if the urging force and driving force for engagement with the clamp shaft are not sufficiently large, and even if the urging force and driving force for pulling the clamp shaft are not sufficiently large, it can sufficiently resist a large cutting force This To become.
[0045]
Therefore, even if the drawbar drive device and the wedge drive device are not hydraulic cylinder devices that can generate a large force that can be directly opposed to a large cutting force, the draw bar drive device and the wedge drive device can be pulled and chucked, and the air cylinder device can be engaged and disengaged with the wedge This is an innovative tool mounting device for a lathe that can be hydraulic-less.
[0046]
In addition, the wedge portion or the wedge engaging portion is provided with a rolling portion (for example, a roller), and this rolling portion presses the taper surface and presses and engages the wedge portion and the wedge engaging portion. Sticking is prevented, the wedge part can be smoothly driven forward and backward, and the wedge engagement can be smoothly engaged and disengaged.
[0047]
Furthermore, when the wedge driving force and the pushing driving force of the wedge driving device are equal (not configured to be wedge-engaged by pressing by the rolling part), if the wedge engagement is simply a taper surface contact, it is more stationary than dynamic friction. Since the friction becomes much larger, when the wedge is engaged by pulling, the wedge may not be disengaged even if it is driven with the same force, but it is pressed against the wedge by the rolling part. By combining them, the difference between dynamic friction and static friction and static friction can be reduced as much as possible, so there is no need to construct a decompression circuit, and the wedge drive can be engaged and disengaged smoothly with the wedge drive device. It becomes a tool mounting device in a simple lathe.
[0048]
Further, in the inventions according to claims 2, 3 and 4, in a revolutionary lathe excellent in practicality, which can easily realize the present invention in which the functions and effects are reliably exhibited with a simple configuration. It becomes a tool mounting device.
[0049]
Further, in the invention described in claim 5, since the clamping function is always maintained and fine adjustment can be performed so that a good wedge function can be exerted freely, it is extremely practical.
[0050]
According to the sixth aspect of the present invention, the tool mounting device in an excellent lathe capable of smoothly driving the wedge portion back and forth and smoothly engaging and disengaging the wedge engagement.
[Brief description of the drawings]
FIG. 1 is an explanatory front sectional view of a wedge locking state at the time of clamping according to the present embodiment.
FIG. 2 is an enlarged front sectional view of a main part in a wedge locking state at the time of clamping according to the embodiment.
FIG. 3 is an enlarged explanatory plan sectional view of a main part in a wedge locking state at the time of clamping according to the embodiment.
FIG. 4 is an explanatory front sectional view showing a clamp release state (when releasing the wedge lock) of the present embodiment.
FIG. 5 is an enlarged front sectional view of a main part showing a clamp release state (when releasing the wedge lock) of the present embodiment.
FIG. 6 is an enlarged explanatory plan cross-sectional view of the main part showing a clamp release state (when releasing the wedge lock) of the present embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Tool 2 Tapered shank part 2A Clamping protrusion part 3 Mounting engagement part 4 Ram 5 Drawbar drive device 6 Clamp shaft 6A Pulling part 7 Drawbar clamp mechanism 8 Wedge engagement part 9 Wedge part
10 Wedge drive
11 Wedge mechanism
12 Tapered surface
13 Rolling part (rotating roller)

Claims (6)

旋削工具の基端部に設けたテーパシャンク部が係合する取付係合部をラムに設け、このラムにドローバー駆動装置によって進退させるクランプ軸を駆動若しくは付勢により引動することで、前記テーパシャンク部のクランプ用突出部をクランプしてこのテーパシャンク部を前記取付係合部に押圧係合し前記工具をラムに着脱自在に取り付け固定するドローバークランプ機構を設けた旋盤における工具取付装置において、前記ドローバークランプ機構のクランプ軸を引動して工具をラムに取り付け固定した際、このクランプ軸若しくはクランプ軸と共に引動される引動部にクサビ係合部を設け、このクサビ係合部に係合するクサビ部を進退自在に設け、クサビ駆動装置により進退させる前記クサビ部を駆動若しくは付勢により移動させて前記クサビ係合部に押圧係合することで、前記クランプ軸の引動クランプ位置が係止保持されるクサビ機構を備え、前記クサビ係合部は、前記クランプ軸と共に移動する前記引動部として若しくは前記引動部に、クサビ係合部形成部材を、このクランプ軸の軸受部の端面に対して対向状態に設けて、この軸受部と前記クランプ軸と共に移動するクサビ係合部形成部材とで、前記クサビ部が挿入進退できる凹部若しくは孔部を形成することで構成し、前記クサビ部若しくは前記クサビ係合部には転動部を設け、この転動部が圧接してクサビ部とクサビ係合部とが押圧係合するように構成し、前記転動部は、前記クサビ係合部の対向内面若しくは前記クサビ部の外面の対向面に設けたことを特徴とする旋盤における工具取付装置。A taper shank provided on the base end of the turning tool is provided on the ram, and the taper shank is moved by driving or biasing a clamp shaft that is advanced and retracted by a draw bar driving device to the ram. In a tool mounting apparatus in a lathe provided with a draw bar clamp mechanism that clamps a projecting part for clamping of a part and presses and engages the taper shank part with the mounting engaging part and detachably attaches and fixes the tool to a ram. When the tool is attached to and fixed to the ram by pulling the clamp shaft of the drawbar clamp mechanism, a wedge engaging portion is provided on the clamp shaft or a pulling portion that is moved together with the clamp shaft, and the wedge portion is engaged with the wedge engaging portion. The wedge portion that is advanced and retracted by the wedge driving device is moved by driving or urging to move the wedge. A wedge mechanism is provided in which the pulling clamp position of the clamp shaft is locked and held by being press-engaged with the bi-engaging portion, and the wedge engaging portion serves as the pulling portion that moves together with the clamp shaft or the pulling motion. in part, a wedge engaging portion forming member, is provided on the opposite state to the end face of the bearing portion of the clamp shaft of this, in a wedge engaging portion forming member which moves together with the clamping shaft and the bearing portion, the wedge Forming a recessed part or a hole part through which the part can be inserted / retracted, and the wedge part or the wedge engaging part is provided with a rolling part, and the rolling part is in pressure contact with the wedge part and the wedge engaging part. There was configured to press engagement, said rolling unit, the tool attachment device in a lathe, wherein the digits set the opposing surface of the opposing inner surface or outer surface of the wedge portion of the wedge engagement portion. 前記ドローバー駆動装置及び前記クサビ駆動装置を油圧シリンダ装置ではなく、エアシリンダ装置で構成したことを特徴とする請求項1記載の旋盤における工具取付装置。  2. The tool mounting device in a lathe according to claim 1, wherein the draw bar driving device and the wedge driving device are constituted by an air cylinder device instead of a hydraulic cylinder device. 少なくとも前記クサビ係合部若しくは前記クサビ部の前記転動部が押圧係合する部分に、前記クサビ部の進退方向に対して傾斜したクサビテーパ面を形成したことを特徴とする請求項1,2のいずれか1項に記載の旋盤における工具取付装置。  The wedge taper surface inclined with respect to the advancing / retreating direction of the wedge portion is formed at least in the wedge engaging portion or a portion where the rolling portion of the wedge portion is pressed and engaged. The tool mounting apparatus in the lathe of any one of Claims. 前記クサビ部を移動して前記クサビ係合部に押圧係合した際には、前記クランプ軸の引動クランプ位置が係止保持されて前記工具は前記ラムに強固に取り付け固定され、前記クサビ部を戻動させた際には、前記クランプ軸をクランプ方向とは逆方向のクランプ解除方向に移動し得るクランプ作動・解除用スペースが生じるように前記クサビ係合部並びに前記クサビ部を構成したことを特徴とする請求項1〜3のいずれか1項に記載の旋盤における工具取付装置。  When the wedge portion is moved and pressed into the wedge engaging portion, the traction clamp position of the clamp shaft is locked and held, and the tool is firmly attached and fixed to the ram. The wedge engaging portion and the wedge portion are configured so that a clamp actuating / releasing space that can move the clamp shaft in a clamp releasing direction opposite to the clamping direction is generated when the clamp shaft is moved back. The tool mounting apparatus in the lathe of any one of Claims 1-3 characterized by the above-mentioned. 前記クランプ軸若しくはこのクランプ軸と共に引動される引動部に前記クサビ係合部を移動調整自在に設けて、前記クサビ機構による前記クランプ軸の引動係止保持位置を微調整し得るように構成したことを特徴とする請求項1〜4のいずれか1項に記載の旋盤における工具取付装置。  The wedge engaging portion is provided on the clamp shaft or a pulling portion that is moved together with the clamp shaft so as to be movable and adjustable so that the movement lock holding position of the clamp shaft by the wedge mechanism can be finely adjusted. The tool mounting apparatus in the lathe of any one of Claims 1-4 characterized by these. 前記転動部は前記クサビ係合部の対向内面若しくは前記クサビ部の対向外面の一側のクサビ部の進退方向に複数設け、反対側にも複数若しくは前記一側の複数の転動部間の対向位置に少なくとも設けたことを特徴とする請求項1〜5のいずれか1項に記載の旋盤における工具取付装置。  A plurality of rolling parts are provided in the advancing and retreating direction of the wedge part on one side of the opposing inner surface of the wedge engaging part or the opposing outer surface of the wedge part. The tool mounting device in a lathe according to any one of claims 1 to 5, wherein the tool mounting device is provided at least at a facing position.
JP2002380159A 2002-12-27 2002-12-27 Tool mounting device for lathe Expired - Fee Related JP3976676B2 (en)

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JP2015127085A (en) * 2013-12-28 2015-07-09 株式会社オーエム製作所 Tool attachment device of lathe

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TW200535566A (en) * 2004-01-15 2005-11-01 Jsr Corp Upper layer film forming composition for liquid immersion and method of forming photoresist pattern

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Publication number Priority date Publication date Assignee Title
JP2015127085A (en) * 2013-12-28 2015-07-09 株式会社オーエム製作所 Tool attachment device of lathe

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