JP4275220B2

JP4275220B2 - Milling equipment

Info

Publication number: JP4275220B2
Application number: JP18649198A
Authority: JP
Inventors: 知宏浜田
Original assignee: ダイジ▲ェ▼ット工業株式会社
Priority date: 1998-07-01
Filing date: 1998-07-01
Publication date: 2009-06-10
Anticipated expiration: 2018-07-01
Also published as: JP2000015516A

Description

【０００１】
【発明の属する技術分野】
この発明はフライス装置に係り、特に、先端外周部に複数のチップが装着されたカッタ本体を、主軸スピンドルの先端部に取り付けられるアダプタにがたつかないようにして強固に取り付けることが簡単に行えるフライス装置に関するものである。
【０００２】
【従来の技術】
従来より、フライス装置において、先端外周部に複数のチップが装着されたカッタ本体を回転する主軸スピンドルに取り付けるにあたっては、この主軸スピンドルの先端部にアダプタを取り付け、このアダプタに上記のカッタ本体を取り付けるようにしており、またこのようにカッタ本体をアダプタに取り付けるにあたっては、従来より様々な方法が用いられていた。
【０００３】
そして、近年においては、上記のようなフライス装置において、カッタ本体をアダプタに対してワンタッチで簡単に取り付けることができるようにするため、例えば、実公昭６１−１９８６１号公報等に示されるように、リング状になったカッタ本体の内周部に軸方向に伸びた切欠きを周方向に所要間隔を介して複数設けると共に、中心ボルトによってアダプタに取り付けられる中間部材の外周部に上記のカッタ本体に設けられた切欠き内に入り込む突起を設け、また上記のアダプタの先端面でカッタ本体の切欠きに対応する位置に、切欠きの回転方向側の側壁を押圧するキー部材を設けると共に、上記の中間部材のアダプタ側端外周部で前記の突起と異なる箇所に上記のキー部材に係合するキー溝を設けたものが開発された。
【０００４】
ここで、このようなフライス装置においては、上記の中間部材を中心ボルトによりアダプタに取り付けた状態で、この中間部材の突起と上記カッタ本体の切欠きとを合致させた状態でカッタ本体をアダプタ側に差し込み、その後、このカッタ本体を回転させて前記のキー部材に係止させ、これによりカッタ本体を上記中間部材の突起上に保持させ、この状態で、上記の中心ボルトを締め付けて中間部材をアダプタに固定させると共に、この中間部材における突起とアダプタとの間で上記カッタ本体の切欠きが設けられていない内周部分を挟み込んで、カッタ本体をアダプタに取り付けるようにしていた。
【０００５】
しかし、このようにアダプタと中間部材の突起との間でカッタ本体の内周部を挟み込むようにしてカッタ本体をアダプタに取り付けた場合、カッタ本体の先端外周部に設けられたチップの位置から離れた位置でカッタ本体がアダプタと中間部材とによって保持されることになり、このフライス装置において、カッタ本体を回転させて、カッタ本体の先端外周部に設けられたチップによって被切削物の切削を行った場合に、カッタ本体の振れ等を十分に抑制することができず、切削加工精度が低下して、被切削面の品位が悪くなったり、カッタ本体に装着されたチップが破損したりする等の問題があった。
【０００６】
【発明が解決しようとする課題】
この発明は、回転する主軸スピンドルの先端部にアダプタを取り付け、このアダプタにカッタ本体を取り付けるようにしたフライス装置における上記のような問題を解決することを課題とするものである。
【０００７】
すなわち、この発明においては、上記のように回転する主軸スピンドルの先端部に取り付けられたアダプタに、カッタ本体を取り付けるようにしたフライス装置において、カッタ本体の取り付けが簡単に行えると共に、このカッタ本体を回転させて被切削物を切削する場合において、カッタ本体ががたつくことがないように強固に取り付けられるようにすることを課題とするものである。
【０００８】
【課題を解決するための手段】
この発明に係るフライス装置においては、上記のような課題を解決するため、回転する主軸スピンドルの先端部に第１アダプタ１０を取り付け、中心部に回転部材用の貫通孔２１が設けられると共に周辺部に保持部材用の複数の貫通孔２２が設けられた第２アダプタ２０を上記の第１アダプタ１０に取り付けて、この第２アダプタ２０と第１アダプタ１０との間に、上記の回転部材用の貫通孔２１と連続した回転部材３０を収容させる回転部材用の空間部２３ａとこの回転部材用の空間部２３ａを中心にその周囲に設けられて昇降部材４０を収容させる昇降部材用の空間部２３ｂとからなる空間部２３を形成し、ねじ部３１が設けられた回転部材３０を上記の回転部材用の空間部２３ａに収容させ、この回転部材３０を上記の第２アダプタ２０によって保持させると共に、この回転部材３０の先端面３２を上記の回転部材用の貫通孔２１を通して露出させ、この回転部材３０のねじ部３１と噛み合うねじ孔４１が中心部に設けられた昇降部材４０を上記の回転部材３０の回転により昇降するようにして上記の昇降部材用の空間部２３ｂ内に収容させ、先端部に係止部５１が設けられた複数の保持部材５０を上記の昇降部材４０から第２アダプタ２０に設けられた上記の保持部材用の貫通孔２１を通して先端側に突出させ、先端外周部に複数のチップ６１が取り付けられたリング状のカッタ本体６０を上記の各保持部材５０の係止部５１に係止させ、上記の回転部材３０の回転により昇降部材４０を上昇させて、保持部材５０の係止部５１と第２アダプタ２０との間でカッタ本体６０を挟持させるようにしたのである。
【０００９】
ここで、この発明におけるフライス装置において、カッタ本体６０を取り付けるにあたっては、昇降部材４０から第２アダプタ２０に設けられた保持部材用の各貫通孔２２を通して各保持部材５０を突出させると共に、第１アダプタ１０と第２アダプタ２０との間の空間部２３内に収容させた昇降部材４０をフライス装置の先端側、すなわち空間部２３の下部側に位置させ、上記のように保持部材用の各貫通孔２２から突出された各保持部材５０の先端部に設けられた係止部５１にカッタ本体６０を係止させる。
【００１０】
そして、このように各保持部材５０の係止部５１にカッタ本体６０を係止させた状態で、上記の回転部材３０を回転させ、この回転部材３０のねじ部３１と噛み合ったねじ孔４１によって昇降部材４０をフライス装置の後方側、すなわち空間部２３の上方に移動させ、各保持部材５０における係止部５１と上記の第２アダプタ２０との間でカッタ本体６０を挟持して、カッタ本体６０を固定させるようにする。
【００１１】
また、この発明におけるフライス装置において、上記のように固定されたカッタ本体６０を取り外すにあたっては、上記の回転部材３０を取付時とは逆方向に回転させ、この回転部材３０のねじ部３１と噛み合ったねじ孔４１によって昇降部材４０をフライス装置の先端側、すなわち空間部２３の下方に移動させ、この昇降部材４０から延出された各保持部材５０と共にカッタ本体６０を下方に移動させて、カッタ本体６０を第２アダプタ２０から離し、この状態でカッタ本体６０を保持部材５０の係止部５１から取り外すようにする。
【００１２】
このように、この発明におけるフライス装置においては、カッタ本体６０を保持部材５０の係止部５１に係止させた状態で、上記の回転部材３０を回転させるだけで、カッタ本体６０を簡単に固定させたり、また固定されたカッタ本体６０を簡単に取り外したりすることができるようになる。
【００１３】
また、この発明におけるフライス装置においては、第２アダプタ２０の周辺部に設けられた保持部材用の各貫通孔２１を通して突出された各保持部材５０の係止部５１によりカッタ本体６０を第２アダプタ２０との間で挟持させて、カッタ本体６０を固定させるようにしているため、カッタ本体６０の先端外周部に設けられたチップ６１に近い位置でカッタ本体６０が固定されるようになり、このカッタ本体６０を回転させて切削を行った場合に、カッタ本体６０が振動するのが抑制され、被切削物に対して精度の良い切削加工が行えるようになり、被切削面の品位が悪くなるということがなく、またカッタ本体６０に設けられたチップ６１が破損するのも防止される。
【００１４】
【発明の実施の形態】
以下、この発明の実施形態に係るフライス装置を添付図面に基づいて具体的に説明する。
【００１５】
この実施形態におけるフライス装置においては、図１に示すように、機械本体（図示せず）の主軸スピンドル（図示せず）の先端部に取り付けられるリング状になった第１アダプタ１０の外周部に沿って第２アダプタ２０をねじ１１により取り付けるようにしている。
【００１６】
ここで、上記の第２アダプタ２０においては、図１及び図２に示すように、その中心部に回転部材用の貫通孔２１を設け、この貫通孔２１の上部側に回転部材３０を収容させる空間部２３ａを設けると共に、この空間部２３ａを中心にして昇降部材４０を収容させる空間部２３ｂを十字状に形成し、この十字状になった空間部２３ｂ内の各周辺部にそれぞれ保持部材５０を通す保持部材用の貫通孔２２を設けている。
【００１７】
一方、上記のような十字状になった空間部２３ｂが設けられていない部分においては、図３に示すように、第２アダプタ２０の肉厚を厚くして、第２アダプタ２０と第１アダプタ１０とを接触させると共に、十字状になった空間部２３ｂ間の位置において、この第２アダプタ２０や第１アダプタ１０を上記の主軸スピンドルに取り付ける取付ボルト７０を通すための取付孔７１，７２を第２アダプタ２０と第１アダプタ１０とに設けている。
【００１８】
そして、この第２アダプタ２０の中心部における空間部２３ａ内に、図４に示すように、ねじ部３１が設けられた回転部材３０を収容させると共に、レンチ穴３３が形成されたこの回転部材３０の先端面３２を上記の回転部材用の貫通孔２１を通して露出させるようにしている。
【００１９】
また、昇降部材４０としては、図５に示すように、上記の十字状になった空間部２３ｂに対応した十字状に形成され、その中心部に上記の回転部材３０のねじ部３１と噛み合うねじ孔４１が形成されると共に、十字状になった空間部２３ｂに設けられた保持部材用の各貫通孔２２と対応するようにして保持部材５０を取り付けるための取付穴４２を設けたものを用いている。
【００２０】
そして、この昇降部材４０のねじ孔４１に回転部材３０のねじ部３１をねじ込んだ状態で、この昇降部材４０を第２アダプタ２０に設けられた十字状の空間部２３ｂに収容させると共に、先端部に膨出した係止部５１が設けられた保持部材５０を、第２アダプタ２０に設けられた保持部材用の各貫通孔２２を通してこの昇降部材４０に設けられた各取付穴４２に通し、各保持部材５０をナット５２によって昇降部材４０に取り付け、第２アダプタ２０に設けられた保持部材用の各貫通孔２２を通して先端部に係止部５１が設けられた複数の保持部材５０を先端側に突出させるようにしている。
【００２１】
このようにして第２アダプタ２０に設けられた空間部２３ａ，２３ｂ内に回転部材３０と昇降部材４０を収容させた状態で、この第２アダプタ２０に上記の第１アダプタ１０をねじ１１によって取り付けると共に、図６に示すように、第２アダプタ２０と第１アダプタ１０とに設けられた上記の各取付孔７１，７２を通して取付ボルト７０によりこれらを主軸スピンドルに取り付ける。
【００２２】
ここで、このように取付ボルト７０によって第２アダプタ２０と第１アダプタ１０とを主軸スピンドルに取り付ける場合、回転部材３０や昇降部材４０を収容させる空間部２３ａ，２３ｂ以外においては、図３に示すように、第２アダプタ２０の肉厚が厚くなって第１アダプタ１０と接触しているため、取付ボルト７０を強く締め付けても第２アダプタ２０が変形するということがなく、これらを主軸スピンドルに強固に取り付けることができる。
【００２３】
一方、リング状になったカッタ本体６０においては、図６に示すように、第２アダプタ２０から突出された各保持部材５０と対応するようにして、各保持部材５０において膨出された係止部５１を挿入させる挿入孔６２を設けると共に、この挿入孔６２と連続するようにして保持部材５０の係止部５１よりも幅が狭くなった案内孔６３を周方向に設けると共に、このカッタ本体６０の先端外周部においては、その周方向に沿って所要間隔を介して複数のチップ６１を設け、各チップ６１のすくい面６１ａに当接するようにして切屑を外部に排出させる案内板６４を設けている。
【００２４】
ここで、この実施形態のフライス装置において、主軸スピンドルの先端部に取り付けられた上記の第２アダプタ２０に上記のカッタ本体６０を取り付けるにあたっては、第１アダプタ１０と第２アダプタ２０との間の空間部２３内に収容させた上記の昇降部材４０を空間部２３の下部側に位置させた状態で、第２アダプタ２０における保持部材用の各貫通孔２２を通して先端側に突出された各保持部材５０の先端部における係止部５１とカッタ本体６０に設けられた各挿入孔６２とを位置合わせし、この状態で、カッタ本体６０を持ち上げ、カッタ本体６０に設けられた各挿入孔６２内に各保持部材５０における係止部５１を挿入させて、各係止部５１を各挿入孔６２を通してカッタ本体６０の先端面側に導くようにする。
【００２５】
そして、このように各係止部５１を各挿入孔６２を通してカッタ本体６０の先端面側に導いた状態で、カッタ本体６０を少し回転させ、図４及び図６に示すように、保持部材５０を挿入孔６２に連続した案内孔６３に導き、各保持部材５０に設けられた係止部５１を案内孔６３の周辺部に係止させて、カッタ本体６０を保持させるようにする。
【００２６】
次いで、上記の第２アダプタ２０の中心部に設けられた回転部材用の貫通孔２１を通して、回転部材３０の先端面３２に設けられたレンチ穴３３にレンチ（図示せず）を差し込み、レンチによって昇降部材４０を上昇させる方向に回転部材３０を回転させ、この回転部材３０のねじ部３１と噛み合った昇降部材４０のねじ孔４１を介してこの昇降部材４０を上記の空間部２３ｂ内において上方に移動させる。
【００２７】
このようにすると、昇降部材４０の上昇に伴って、各保持部材５０の係止部５１に係止されたカッタ本体６０も保持部材５０と一緒に持ち上げられ、さらに回転部材３０を回転させて、昇降部材４０をさらに上方に移動させると、カッタ本体６０が第２アダプタ２０にあたり、カッタ本体６０が各保持部材５０における係止部５１と第２アダプタ２０の間で強く挟持されて、カッタ本体６０が強固に固定されるようになる。
【００２８】
このように、この実施形態のフライス装置においては、カッタ本体６０を保持部材５０の係止部５１に係止させた状態で、回転部材３０を回転させることによってカッタ本体６０が簡単に固定されるようになる。
【００２９】
また、この実施形態のフライス装置においては、チップ６１が設けられたカッタ本体６０の外周部に近い位置において、カッタ本体６０が上記の保持部材５０の係止部５１と第２アダプタ２０とにより挟み込まれて固定されるため、このフライス装置によりカッタ本体６０を回転させて切削を行った場合に、カッタ本体６０が振動するということが少なく、その切削加工精度が向上し、被切削面の品位が良くなり、またカッタ本体６０に設けられた各チップ６１が破損するということも少なくなる。
【００３０】
また、この実施形態のフライス装置において、上記のように固定されたカッタ本体６０を取り外すにあたっては、第２アダプタ２０の中心部に設けられた回転部材用の貫通孔２１を通して、回転部材３０の先端面３２に設けられたレンチ穴３３にレンチを差し込み、カッタ本体６０を固定させる場合とは逆方向に回転部材３０を回転させる。
【００３１】
このようにすると、この回転部材３０の回転に伴い、この回転部材３０のねじ部３１と噛み合った昇降部材４０ねじ孔４１を介して昇降部材４０が上記の空間部２３ｂ内において下方に移動し、これにより各保持部材５０の係止部５１と第２アダプタ２０との間に挟持されていたカッタ本体６０が、昇降部材４０の下降に伴って保持部材５０と共に下方に移動して、第２アダプタ２０から離れて保持部材５０の係止部５１に保持された状態になる。
【００３２】
そして、このように保持部材５０の係止部５１に保持された状態で、カッタ本体６０を上記の取付時とは逆方向に若干回転させ、各保持部材５０を案内孔６３に沿って挿入孔６２に導き、この挿入孔６２の位置において、各保持部材５０の先端における係止部５１を各挿入孔６２を通して抜き出し、カッタ本体６０を取り外すようにする。
【００３３】
なお、この実施形態におけるフライス装置においては、上記の第２アダプタ２０において昇降部材４０を収容させる空間部２３ｂを十字状に形成すると共に、十字状になった昇降部材４０を用いるようにしたが、第２アダプタ２０に設ける空間部２３の形状やこの空間部２３に収容させる昇降部材４０の形状は特にこのようなものに限定されるものではない。
【００３４】
【発明の効果】
以上詳述したように、この発明におけるフライス装置においては、第１アダプタと第２アダプタとの間の空間部内に収容させた昇降部材から第２アダプタに設けられた保持部材用の各貫通孔を通して各保持部材を先端側に突出させ、各保持部材の先端部に設けられた係止部にカッタ本体を係止させた状態で、回転部材を回転させて昇降部材を空間部の上方に移動させ、これにより各保持部材における係止部と第２アダプタとの間でカッタ本体を挟持させるようにしたため、カッタ本体を簡単に取り付けることができるようになった。
【００３５】
また、この発明におけるフライス装置においては、第２アダプタの周辺部に設けられた保持部材用の各貫通孔を通して突出された各保持部材の係止部によりカッタ本体を第２アダプタとの間で挟持させるようにしているため、カッタ本体の先端外周部に設けられたチップに近い位置でカッタ本体が固定され、このカッタ本体を回転させて切削を行った場合に、カッタ本体が振動するのが抑制され、被切削物に対して精度の良い切削加工が行え、被切削面の品位が悪くなるということがなく、またカッタ本体に設けられたチップが破損するのも防止されるようになった。
【図面の簡単な説明】
【図１】この発明の一実施形態におけるフライス装置において、第１アダプタと第２アダプタとの間に空間部が形成された状態を示した断面図である。
【図２】同実施形態におけるフライス装置において使用した第２アダプタの平面図である。
【図３】同実施形態におけるフライス装置において、第１アダプタと第２アダプタとの間に十字状の空間部が形成されていない部分の断面図である。
【図４】同実施形態におけるフライス装置の概略断面図である。
【図５】同実施形態におけるフライス装置において使用した昇降部材の平面図である。
【図６】同実施形態におけるフライス装置の概略正面図である。
【符号の説明】
１０第１アダプタ
２０第２アダプタ
２１回転部材用の貫通孔
２２保持部材用の貫通孔
２３，２３ａ，２３ｂ空間部
３０回転部材
３１ねじ部
３２回転部材の先端面
４０昇降部材
４１ねじ孔
５０保持部材
５１係止部
６０カッタ本体
６１チップ[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a milling device, and in particular, a cutter main body having a plurality of chips mounted on the outer periphery of a tip can be easily and firmly attached so as not to rattle an adapter attached to the tip of a spindle spindle. The present invention relates to a milling device.
[0002]
[Prior art]
Conventionally, in a milling apparatus, when attaching a cutter main body having a plurality of chips mounted on the outer periphery of the tip to a rotating spindle, an adapter is attached to the tip of the spindle spindle, and the cutter body is attached to the adapter. In addition, various methods have been conventionally used to attach the cutter body to the adapter in this manner.
[0003]
In recent years, in order to enable the cutter body to be easily attached to the adapter with one touch in the above-described milling device, for example, as shown in Japanese Utility Model Publication No. 61-19861, etc., A plurality of notches extending in the axial direction are provided in the inner peripheral portion of the cutter-shaped cutter body in the circumferential direction through the required interval, and the above-mentioned cutter main body is attached to the outer peripheral portion of the intermediate member attached to the adapter by the center bolt. Protrusions that enter the cutouts provided are provided, and a key member that presses the side wall on the rotation direction side of the cutouts is provided at a position corresponding to the cutouts of the cutter body on the tip surface of the adapter, and An intermediate member provided with a key groove that engages with the key member at a position different from the protrusion on the outer peripheral portion on the adapter side has been developed.
[0004]
Here, in such a milling apparatus, the cutter body is attached to the adapter side with the projection of the intermediate member and the notch of the cutter body aligned with the intermediate member attached to the adapter with the center bolt. After that, the cutter body is rotated and locked to the key member, thereby holding the cutter body on the protrusion of the intermediate member. In this state, the center bolt is tightened to fix the intermediate member. While fixing to the adapter, the cutter body was attached to the adapter by sandwiching the inner peripheral portion where the notch of the cutter body was not provided between the protrusion on the intermediate member and the adapter.
[0005]
However, when the cutter body is attached to the adapter so that the inner peripheral portion of the cutter body is sandwiched between the adapter and the protrusion of the intermediate member in this way, it is separated from the position of the tip provided on the outer peripheral portion of the tip of the cutter body. The cutter body is held by the adapter and the intermediate member at this position, and in this milling device, the cutter body is rotated and the workpiece is cut by the tip provided on the outer periphery of the tip of the cutter body. In such a case, the vibration of the cutter body cannot be sufficiently suppressed, the cutting accuracy is lowered, the quality of the cut surface is deteriorated, or the chip mounted on the cutter body is damaged. There was a problem.
[0006]
[Problems to be solved by the invention]
An object of the present invention is to solve the above-described problems in a milling apparatus in which an adapter is attached to the tip of a rotating spindle spindle and a cutter body is attached to the adapter.
[0007]
That is, according to the present invention, in the milling device in which the cutter body is attached to the adapter attached to the tip of the spindle spindle that rotates as described above, the cutter body can be easily attached, An object of the present invention is to firmly attach the cutter body so that the cutter body does not rattle when the workpiece is cut by rotation.
[0008]
[Means for Solving the Problems]
In milling apparatus according to the present invention, to solve the above problems, the peripheral portion with a mounting first adapter 10, the through-hole 21 of the rotary member in the center is provided at the distal end portion of the main spindle to rotate A second adapter 20 provided with a plurality of through holes 22 for holding members is attached to the first adapter 10, and the rotating adapter for the rotating member is interposed between the second adapter 20 and the first adapter 10. A space 23a for the rotating member that accommodates the rotating member 30 that is continuous with the through hole 21, and a space 23b for the lifting member that is provided around the space 23a for the rotating member and accommodates the lifting member 40 around the space 23a. the space portion 23 is formed consisting of a threaded portion 31 of the rotary member 30 is provided to accommodate in the space portion 23a of the rotary member described above, the rotary member 30 of the above second adapter 2 , And the tip end surface 32 of the rotating member 30 is exposed through the through hole 21 for the rotating member, and the elevating member 40 provided with a screw hole 41 engaging with the screw portion 31 of the rotating member 30 at the center. Is moved up and down by the rotation of the rotating member 30 and is housed in the space 23b for the lifting member, and the plurality of holding members 50 provided with the locking portions 51 at the distal end portions are moved to the lifting member 40. The ring-shaped cutter main body 60 having a plurality of tips 61 attached to the outer peripheral portion of the distal end is projected from the through-hole 21 for the holding member provided in the second adapter 20 to the distal end side. The lifting / lowering member 40 is lifted by the rotation of the rotating member 30, and the cutter body 60 is interposed between the locking portion 51 of the holding member 50 and the second adapter 20. It was so as to sandwich.
[0009]
Here, in the milling device according to the present invention, when the cutter body 60 is attached, the holding members 50 are protruded from the elevating member 40 through the through holes 22 for holding members provided in the second adapter 20, and the first The raising / lowering member 40 accommodated in the space 23 between the adapter 10 and the second adapter 20 is positioned on the tip side of the milling device, that is, the lower side of the space 23, and each of the through holes for the holding member as described above. The cutter main body 60 is locked to the locking portion 51 provided at the tip of each holding member 50 protruding from the hole 22.
[0010]
The rotating member 30 is rotated in a state where the cutter body 60 is locked to the locking portion 51 of each holding member 50 as described above, and the screw hole 41 engaged with the screw portion 31 of the rotating member 30 is used. The raising / lowering member 40 is moved to the rear side of the milling device, that is, above the space 23, and the cutter body 60 is sandwiched between the locking portion 51 of each holding member 50 and the second adapter 20. 60 is fixed.
[0011]
Further, in the milling apparatus according to the present invention, when removing the cutter main body 60 fixed as described above, the rotating member 30 is rotated in the direction opposite to that at the time of attachment, and meshed with the screw portion 31 of the rotating member 30. The lifting member 40 is moved by the screw hole 41 to the tip side of the milling device, that is, below the space 23, and the cutter body 60 is moved downward together with the holding members 50 extended from the lifting member 40. The main body 60 is separated from the second adapter 20, and the cutter main body 60 is removed from the locking portion 51 of the holding member 50 in this state.
[0012]
As described above, in the milling device according to the present invention, the cutter body 60 can be simply fixed by simply rotating the rotating member 30 while the cutter body 60 is locked to the locking portion 51 of the holding member 50. The fixed cutter body 60 can be easily removed.
[0013]
Further, in the milling device according to the present invention, the cutter body 60 is attached to the second adapter by the locking portions 51 of the holding members 50 protruding through the through holes 21 for holding members provided in the peripheral portion of the second adapter 20. Since the cutter body 60 is fixed between the cutter body 20 and the cutter body 60, the cutter body 60 is fixed at a position close to the tip 61 provided on the outer periphery of the tip of the cutter body 60. When cutting is performed by rotating the cutter main body 60, the cutter main body 60 is prevented from vibrating, the cutting work can be performed with high accuracy, and the quality of the cut surface is deteriorated. This also prevents the chip 61 provided in the cutter body 60 from being damaged.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a milling device according to an embodiment of the present invention will be specifically described with reference to the accompanying drawings.
[0015]
In the milling apparatus according to this embodiment, as shown in FIG. 1, a ring-shaped first adapter 10 attached to the tip of a spindle spindle (not shown) of a machine body (not shown) is attached to the outer peripheral portion. The second adapter 20 is attached along with the screw 11 along.
[0016]
Here, in the second adapter 20, as shown in FIGS. 1 and 2, a through hole 21 for a rotating member is provided at the center thereof, and the rotating member 30 is accommodated on the upper side of the through hole 21. The space portion 23a is provided, and the space portion 23b for accommodating the elevating member 40 is formed in a cross shape around the space portion 23a. The holding member 50 is provided at each peripheral portion in the cross-shaped space portion 23b. A through hole 22 for a holding member is provided.
[0017]
On the other hand, in the portion where the cross-shaped space portion 23b as described above is not provided, the second adapter 20 and the first adapter are made thicker as shown in FIG. 10 and contact holes 71 and 72 for passing the mounting bolts 70 for attaching the second adapter 20 and the first adapter 10 to the spindle spindle at positions between the cross-shaped spaces 23b. The second adapter 20 and the first adapter 10 are provided.
[0018]
Then, as shown in FIG. 4, the rotating member 30 provided with the screw portion 31 is accommodated in the space portion 23 a in the center portion of the second adapter 20, and the rotating member 30 in which the wrench hole 33 is formed. The tip end surface 32 of the rotating member is exposed through the through hole 21 for the rotating member.
[0019]
Further, as shown in FIG. 5, the elevating member 40 is formed in a cross shape corresponding to the space portion 23b having the cross shape, and a screw that meshes with the screw portion 31 of the rotary member 30 at the center thereof. The hole 41 is formed, and a mounting hole 42 for attaching the holding member 50 so as to correspond to each holding member through-hole 22 provided in the cross-shaped space 23b is used. ing.
[0020]
The elevating member 40 is accommodated in the cross-shaped space 23b provided in the second adapter 20 in a state where the screw portion 31 of the rotating member 30 is screwed into the screw hole 41 of the elevating member 40, and the distal end portion The holding member 50 provided with the locking portion 51 bulging out is passed through the mounting holes 42 provided in the elevating member 40 through the through holes 22 for holding members provided in the second adapter 20, The holding member 50 is attached to the elevating member 40 by a nut 52, and a plurality of holding members 50 each provided with a locking portion 51 are provided on the distal end side through the through holes 22 for the holding member provided in the second adapter 20. It is made to protrude.
[0021]
In this manner, the first adapter 10 is attached to the second adapter 20 with the screw 11 in a state where the rotating member 30 and the elevating member 40 are accommodated in the space portions 23 a and 23 b provided in the second adapter 20. At the same time, as shown in FIG. 6, these are attached to the main spindle by mounting bolts 70 through the mounting holes 71 and 72 provided in the second adapter 20 and the first adapter 10.
[0022]
Here, in the case where the second adapter 20 and the first adapter 10 are attached to the main spindle by the mounting bolts 70 in this way, the portions other than the space portions 23a and 23b for accommodating the rotating member 30 and the lifting member 40 are shown in FIG. As described above, since the thickness of the second adapter 20 is increased and is in contact with the first adapter 10, the second adapter 20 is not deformed even if the mounting bolt 70 is strongly tightened. Can be firmly attached.
[0023]
On the other hand, in the cutter body 60 in a ring shape, as shown in FIG. 6, the locking body bulged in each holding member 50 so as to correspond to each holding member 50 protruding from the second adapter 20. An insertion hole 62 for inserting the portion 51 is provided, and a guide hole 63 having a width narrower than the locking portion 51 of the holding member 50 is provided in the circumferential direction so as to be continuous with the insertion hole 62, and the cutter body A plurality of chips 61 are provided at a predetermined interval along the circumferential direction at the tip outer peripheral portion of 60, and a guide plate 64 is provided for discharging chips to the outside so as to contact the rake face 61a of each chip 61. ing.
[0024]
Here, in the milling apparatus according to this embodiment, when the cutter body 60 is attached to the second adapter 20 attached to the tip end portion of the spindle spindle, the first adapter 10 and the second adapter 20 are provided with each other. Each holding member protruded to the front end side through each through hole 22 for a holding member in the second adapter 20 in a state where the lifting member 40 accommodated in the space portion 23 is positioned on the lower side of the space portion 23. 50, the locking portion 51 at the front end portion and the respective insertion holes 62 provided in the cutter main body 60 are aligned, and in this state, the cutter main body 60 is lifted and placed in each insertion hole 62 provided in the cutter main body 60. The locking portions 51 in the holding members 50 are inserted, and the locking portions 51 are guided to the distal end surface side of the cutter body 60 through the insertion holes 62.
[0025]
Then, the cutter body 60 is slightly rotated in a state where the respective locking portions 51 are guided to the distal end surface side of the cutter body 60 through the respective insertion holes 62 as described above, and as shown in FIGS. Is guided to the guide hole 63 continuous with the insertion hole 62, and the locking portion 51 provided in each holding member 50 is locked to the peripheral portion of the guide hole 63 so that the cutter body 60 is held.
[0026]
Next, a wrench (not shown) is inserted into a wrench hole 33 provided in the distal end surface 32 of the rotating member 30 through the through hole 21 for the rotating member provided in the central portion of the second adapter 20, and the wrench is used. The rotary member 30 is rotated in the direction in which the lift member 40 is raised, and the lift member 40 is moved upward in the space portion 23b through the screw hole 41 of the lift member 40 meshed with the screw portion 31 of the rotary member 30. Move.
[0027]
If it does in this way, with the raising of the raising / lowering member 40, the cutter main body 60 latched by the latching | locking part 51 of each holding member 50 will also be lifted with the holding member 50, and also the rotation member 30 will be rotated, When the elevating member 40 is moved further upward, the cutter body 60 hits the second adapter 20, and the cutter body 60 is strongly held between the locking portion 51 and the second adapter 20 in each holding member 50, so that the cutter body 60 Becomes firmly fixed.
[0028]
Thus, in the milling apparatus of this embodiment, the cutter body 60 is simply fixed by rotating the rotating member 30 in a state where the cutter body 60 is locked to the locking portion 51 of the holding member 50. It becomes like this.
[0029]
In the milling apparatus of this embodiment, the cutter body 60 is sandwiched between the locking portion 51 of the holding member 50 and the second adapter 20 at a position close to the outer peripheral portion of the cutter body 60 provided with the chip 61. Therefore, when cutting is performed by rotating the cutter body 60 with this milling device, the cutter body 60 is less likely to vibrate, improving the cutting accuracy and improving the quality of the surface to be cut. In addition, the chip 61 provided in the cutter body 60 is less likely to be damaged.
[0030]
In the milling apparatus of this embodiment, when removing the cutter body 60 fixed as described above, the tip of the rotating member 30 is passed through the rotating member through-hole 21 provided in the center of the second adapter 20. A wrench is inserted into the wrench hole 33 provided in the surface 32, and the rotating member 30 is rotated in the direction opposite to the case where the cutter body 60 is fixed.
[0031]
In this way, as the rotating member 30 rotates, the elevating member 40 moves downward in the space portion 23b through the elevating member 40 screw hole 41 engaged with the screw portion 31 of the rotating member 30. As a result, the cutter main body 60 held between the locking portion 51 of each holding member 50 and the second adapter 20 moves downward together with the holding member 50 as the elevating member 40 descends, and the second adapter. It will be in the state which left | separated from 20 and was hold | maintained at the latching | locking part 51 of the holding member 50. FIG.
[0032]
Then, the cutter body 60 is slightly rotated in the direction opposite to that in the above attachment while being held by the locking portion 51 of the holding member 50 as described above, and each holding member 50 is inserted into the insertion hole 63 along the guide hole 63. At the position of the insertion hole 62, the locking portion 51 at the tip of each holding member 50 is extracted through the insertion hole 62, and the cutter body 60 is removed.
[0033]
In the milling apparatus according to this embodiment, the space 23b for accommodating the elevating member 40 in the second adapter 20 is formed in a cross shape, and the elevating member 40 in a cross shape is used. The shape of the space 23 provided in the second adapter 20 and the shape of the elevating member 40 accommodated in the space 23 are not particularly limited to this.
[0034]
【The invention's effect】
As described above in detail, in the milling device according to the present invention, the lifting member housed in the space between the first adapter and the second adapter passes through the through holes for the holding member provided in the second adapter. With each holding member protruding to the tip side and the cutter body locked to the locking portion provided at the tip of each holding member, the rotating member is rotated to move the lifting member above the space. As a result, the cutter body is sandwiched between the locking portion of each holding member and the second adapter, so that the cutter body can be easily attached.
[0035]
Further, in the milling apparatus according to the present invention, the cutter main body is clamped between the second adapter by the holding portions of the holding members protruding through the through holes for holding members provided in the peripheral portion of the second adapter. Therefore, the cutter body is fixed at a position close to the tip provided on the outer periphery of the tip of the cutter body, and when the cutter body is rotated for cutting, the cutter body is prevented from vibrating. In addition, the cutting work can be performed with high accuracy, the quality of the cut surface is not deteriorated, and the chip provided on the cutter body is prevented from being damaged.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing a state in which a space is formed between a first adapter and a second adapter in a milling apparatus according to an embodiment of the present invention.
FIG. 2 is a plan view of a second adapter used in the milling apparatus according to the embodiment.
FIG. 3 is a cross-sectional view of a portion where a cross-shaped space is not formed between the first adapter and the second adapter in the milling apparatus according to the embodiment.
FIG. 4 is a schematic cross-sectional view of a milling apparatus in the same embodiment.
FIG. 5 is a plan view of an elevating member used in the milling apparatus according to the embodiment.
FIG. 6 is a schematic front view of the milling device in the same embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 1st adapter 20 2nd adapter 21 Through-hole 22 for rotating members Through-hole 23, 23a, 23b for holding members Space 30 Rotating member 31 Screw part 32 Tip end surface 40 of rotating member Lifting member 41 Screw hole 50 Holding member 51 Locking part 60 Cutter body 61 Tip

Claims

The first adapter 10 attached to the tip portion of the rotating main spindle, the second adapter 20 having a plurality of through-holes 22 of the holding member for the peripheral portion is provided with a through hole 21 of the rotary member to the center portion is provided A rotating member space 23a that is attached to the first adapter 10 and accommodates the rotating member 30 continuous with the through hole 21 for the rotating member between the second adapter 20 and the first adapter 10. And a rotating member provided with a screw portion 31, which is provided around the space 23 a for the rotating member and is formed around the space 23 b for the lifting member that accommodates the lifting member 40. 30 was accommodated in the space portion 23a of the rotary member described above, the rotary member 30 causes held by the second adapter 20 of the rotation unit and the distal end surface 32 of the rotating member 30 of the Exposed through the through-hole 21 of the use, said lift member to the elevating member 40 to the screw hole 41 is provided at the center portion meshing with screw portion 31 of the rotary member 30 so as to lift by the rotation of the rotary member 30 of the A plurality of holding members 50 housed in the space portion 23b and provided with a locking portion 51 at the distal end portion are provided in the second adapter 20 through the holding member through holes 21 provided in the second adapter 20. The ring-shaped cutter body 60 having a plurality of tips 61 attached to the outer periphery of the distal end is engaged with the engaging portions 51 of the holding members 50, and the rotating member 30 is rotated. A milling apparatus characterized in that the elevating member 40 is raised so that the cutter body 60 is sandwiched between the locking portion 51 of the holding member 50 and the second adapter 20.