JP2005066711A - Cutting fluid/chip separator - Google Patents

Cutting fluid/chip separator Download PDF

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Publication number
JP2005066711A
JP2005066711A JP2003208696A JP2003208696A JP2005066711A JP 2005066711 A JP2005066711 A JP 2005066711A JP 2003208696 A JP2003208696 A JP 2003208696A JP 2003208696 A JP2003208696 A JP 2003208696A JP 2005066711 A JP2005066711 A JP 2005066711A
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cutting fluid
chips
chip
separator
rotation
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Takao Miyatani
孝夫 宮谷
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Yutaka Seimitsu Kogyo Ltd
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Yutaka Seimitsu Kogyo Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cutting fluid/chip separator facilitating the disposal of chips from which a cutting fluid is separated and eliminated by centrifugal separation. <P>SOLUTION: A rotary separating cylinder 12 provided with a downward opening 48, an upward opening 46, a tapered inner peripheral surface 50 and a cover body 56, and a receiving plate 14 are held in a relatively nonrotatable manner to a rotary shaft 28, and a plurality of scrapers 80 are held in a relatively rotatable manner to the rotary shaft 28. The chips with the cutting fluid thrown into the rotary separating cylinder 12 are received by the receiving plate 14, flown by centrifugal force and impact force caused by rotation, and received by the tapered inner peripheral surface 50. With the rotation of the rotary separating cylinder 12, the cutting fluid flows upward by the inclination of the tapered inner peripheral surface 50 and centrifugal force and flows out of an opening 60, and the chips held to the tapered inner peripheral surface 50 rotate the scrapers 80. When the rotation of an electric motor 18 is stopped by a brake to stop the rotary separating cylinder 12, the chips fall by gravity and are received in a chip storage truck 66, and the scrapers 80 are rotated by inertia to scrape and eliminate the chips. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は、切削液が付着した切粉である切削液付着切粉の、切削液と切粉とを遠心分離により分離する装置に関するものであり、特に、切削液が分離除去された切粉の処理の容易化に関するものである。
【０００２】
【従来の技術】
切削液付着切粉の切削液と切粉とを遠心分離により分離させる装置は、例えば、特許文献１に記載されているように既に知られている。特許文献１に記載の分離装置は、底付きの円筒状の缶と、その缶の上向きの開口を覆う蓋と、鉛直軸線まわりに回転可能に設けられ、缶を着脱可能に保持する回転台座と、回転台座を回転させる回転駆動装置とを備えている。缶の周壁は、上部ほど直径が直線的に増大するテーパ状を成し、その上部には、周壁を厚さ方向に貫通して複数の油排出口が設けられている。缶内に切削油が付着した切粉が収容されるとともに回転台座が回転させられ、缶が鉛直軸線まわりに回転させられて、切削油付着切粉が遠心力によって缶の周壁側へ飛ばされるとともに、切粉に付着した切削油が周壁の傾斜および遠心力によって周壁に沿って上方へ流れ、油排出口を通って缶の外へ排出され、油溜め容器に溜められる。切削油が分離された切粉は缶内に残り、その切粉の処理時には缶が回転台座から外され、新たな缶が回転台座に取り付けられる。
【０００３】
【特許文献１】
特開２０００−２１８４６４号公報
【０００４】
【発明が解決しようとする課題，課題解決手段および効果】
しかしながら、特許文献１に記載の分離装置においては、切削油が分離除去された切粉を処理するために缶を回転台座から外し、代わりに空の新たな缶を取り付けることが必要であり、面倒である。
【０００５】
本発明は、以上の事情を背景とし、遠心分離を利用した切削液・切粉分離装置において、切削液が分離された切粉の処理を容易にすることを課題としてなされたものであり、本発明によって、下記各態様の切削液・切粉分離装置が得られる。各態様は請求項と同様に、項に区分し、各項に番号を付し、必要に応じて他の項の番号を引用する形式で記載する。これは、あくまでも本発明の理解を容易にするためであり、本明細書に記載の技術的特徴およびそれらの組合わせが以下の各項に記載のものに限定されると解釈されるべきではない。また、一つの項に複数の事項が記載されている場合、それら複数の事項を常に一緒に採用しなければならないわけではない。一部の事項のみを選択して採用することも可能なのである。
【０００６】
なお、以下の各項において、 （１）項が請求項１に相当し、 （２）項が請求項２に、 （３）項が請求項３に、 （４）項が請求項４に、（１６）項および（１７）項を併せた項が請求項５に、（１８）項が請求項６に、（２０）項が請求項７にそれぞれ相当する。
【０００７】
（１）切削液が付着した切粉である切削液付着切粉を切削液と切粉とに分離する切削液・切粉分離装置であって、
ほぼ鉛直な軸線のまわりに回転可能に設けられ、上部ほど内のり寸法が大きい内側面と、下向きに開口する下向き開口と、前記内側面の上部に設けられ、前記切削液の通過を許容する切削液排出部とを備えた回転分離体と、
前記回転分離体内の前記下向き開口の高さ以上の位置に回転分離体と同心にかつ上向きに設けられ、回転分離体の回転軸線と直交する方向の寸法が前記内側面の対応する部分の内のり寸法より小さい受面を備え、前記内側面との間に前記切粉の通過可能な隙間を残した状態で配設されて前記切削液付着切粉を受ける受部材と、
前記回転分離体と前記受部材とを回転させる回転駆動装置と
を含む切削液・切粉分離装置。
内側面は横断面形状が円形であることが望ましく、また、内のり寸法が上部ほど直線的に大きくなるテーパ内側面であることが望ましい。
受面は、回転分離体の下向き開口より上側の位置に設けることが望ましい。
回転分離体と受部材とを、共通の回転駆動装置によって回転させてもよく、それぞれ専用の回転駆動装置によって回転させてもよい。
回転分離体内に投入された切削液付着切粉は受部材の受面により下方から受けられ、受部材が回転駆動装置によって回転させられることにより、遠心力および衝撃力によって回転分離体の内側面に向かって飛ばされ、内側面により受けられる。受面は回転分離体内の下向き開口の高さ以上の位置に設けられており、遠心力等によって飛ばされた切粉は内側面により受けられる。回転分離体の下向き開口より上側の位置に受面を設ければ、遠心力等によって飛ばされた切粉が内側面から外れることなく受けられる。そして、回転分離体が回転駆動装置によって回転させられることにより、内側面に受けられた切削液付着切粉のうち、切粉は内側面との間の摩擦力によって内側面に対する相対移動を抑制されるのに対し、切削液は、遠心力および内側面の傾斜の作用により内側面に沿って上方へ流れ、切削液排出部から回転分離体の外へ排出される。回転分離体の回転速度，内側面の傾斜および内側面の摩擦係数が、切粉は摩擦力により内側面に保持され、切削液は上方へ流れるように選定されるのである。回転分離体の回転が停止させられれば、内側面に保持された切粉は、遠心力が作用しなくなるため、重力により内側面から離れて落下し、内側面と受面との間の隙間を通って、回転分離体の下向きの開口から回転分離体の外へ排出される。
このように本項の切削液・切粉分離装置によれば、回転分離体および受部材を回転させることにより、切削液と切粉とを分離させることができるとともに、回転分離体を停止させれば、切粉が回転分離体から排出されるため、切削液が分離させられた切粉を処理するために回転分離体を回転駆動装置から外さなくてもよく、切粉の処理が容易となる。
【０００８】
（２）前記回転分離体の前記内側面の横断面形状が円形である （１）項に記載の切削液・切粉分離装置。
横断面形状を円形とすれば、例えば、回転分離体を容易に製造することができる。
なお、内側面の横断面形状は、円形に限らず、楕円形，小判形でもよく、三角形，四角形等の多角形でもよい。多角形とする場合、角に丸みを設けてもよい。
（３）前記回転分離体の前記内側面が、内のり寸法が上部に向かうに従って直線的に増大するテーパ面を成す （１）項または （２）項に記載の切削液・切粉分離装置。
本項の切削液・切粉分離装置によれば、内側面の傾斜が回転分離体の回転軸線に平行な方向において一定であり、回転分離体の製造が容易であり、また、切削液付着切粉が内側面のいずれの箇所に受けられても切削液が同様に上方へ流れさせられる。
なお、内側面は、内のり寸法が上部に向かうに従って曲線的、例えば、二次曲線的に増大する湾曲面としてもよい。
【０００９】
（４）前記受部材の前記受面が円形の平面を成す （１）項ないし （３）項のいずれかに記載の切削液・切粉分離装置。
受面が平面を成す場合、受部材の回転により切削液付着切粉が遠心力によって飛ばされるとき、切粉の飛散を妨げるものがなく、受面により受けられた切削液付着切粉が飛ばされ易い。
受面は、円形に限らず、楕円形，小判形でもよく、矩形等の多角形でもよい。
（５）前記受部材の前記受面が上部ほど直径の大きいテーパ円筒面を成す （１）項ないし （３）項のいずれかに記載の切削液・切粉分離装置。
本項の受部材は、上向きに開口する容器状を成すこととなり、回転分離体に切削液付着切粉が投入されるとき、切削液付着切粉が十分な遠心力を付与されないで受部材からこぼれ落ちることが良好に回避される。
【００１０】
（６）前記回転駆動装置が、
回転駆動源と、
その回転駆動源の回転を前記回転分離体および前記受部材に伝達する回転伝達装置と
を含む （１）項ないし （５）項のいずれかに記載の切削液・切粉分離装置。
本項の切削液・切粉分離装置においては、回転駆動源が回転分離体と受部材とに共通となる。回転伝達装置は全体が共通であっても、少なくとも一部が専用であってもよい。前者の場合には、回転分離体と受部材とが共通の回転部材に固定され、その共通の回転部材に共通の回転駆動源の回転が共通の回転伝達装置により伝達することとなる。後者の場合には、回転伝達装置の少なくとも一部が回転分離体と受部材との少なくとも一方に専用とされるのであり、例えば、回転分離体と受部材との角速度を互いに異ならせたり、一方のみを回転させたりすることが可能となる。一方のみ回転させる場合には、例えば、上記専用部分に連結状態と切断状態とをとり得る断切型のクラッチを設けるのである。
（７）前記回転駆動装置が前記回転分離体の回転を止めるブレーキを含む （１）項ないし （６）項のいずれかに記載の切削液・切粉分離装置。
回転駆動装置を回転駆動源を含む装置とする場合、回転駆動源を、ブレーキ機能を有する電動モータとすることが望ましい。その場合、電動モータの回転を電気的に停止させる電気式ブレーキとしてもよく、機械的に停止させる機械式ブレーキを設けてもよい。電気式ブレーキとしては、例えば、電動モータを発電機として機能させ、発電された電気エネルギを抵抗器内で熱エネルギとして放散させる発電制動装置、あるいは電動モータの回転磁界の回転方向を逆にして制動する逆相制動装置が使用可能である。機械式ブレーキは、例えば、電動モータのロータあるいは出力軸を拘束部材により拘束して停止させる構成とすることができる。
本項のブレーキは、（１７）項に記載の切粉除去部材と組み合わせて採用される場合に特に有効であるが、切粉除去部材と組み合わせることは不可欠ではない。例えば、回転分離体の回転をブレーキによって急激に停止させれば、停止時に切粉および回転分離体に作用する衝撃により、内側面に保持された切粉が効果的に落下させられる。
【００１１】
（８）前記回転分離体を保持する回転分離体保持部材と、前記受部材を保持する受部材保持部材とを含み、前記回転伝達装置がそれら回転分離体保持部材と受部材保持部材との少なくとも一方に前記回転駆動源の回転を伝達する （６）項または （７）項に記載の切削液・切粉分離装置。
回転分離体保持部材は、回転分離体を着脱可能に保持する部材でもよく、着脱不能に保持する部材でもよい。受部材保持部材も同様である。
回転分離体保持部材が受部材または受部材保持部材により保持される態様では、受部材保持部材に回転が伝達され、受部材保持部材または受部材の回転により回転分離体保持部材が回転させられ、回転分離体が回転させられる。受部材保持部材を回転分離体または回転分離体保持部材に保持させ、それらの一方に回転が伝達されるようにしてもよい。これらの場合、回転分離体と受部材とが共通の回転駆動装置によって回転させられることとなり、切削液・切粉分離装置を簡易に構成することができる。
（９）前記回転分離体保持部材が前記回転分離体を外側から保持する （８）項に記載の切削液・切粉分離装置。
回転分離体保持部材により回転分離体を外側から保持すれば、切削液付着切粉に、例えば、ボルト，ナット等が混入し、それら異物が切削液付着切粉と共に回転分離体内に投入されて遠心力により飛ばされても、回転分離体保持部材に当たって回転分離体保持部材を傷付けることがない。
また、回転分離体の外側の部分は切削液と切粉との分離には関係がなく、回転分離体保持部材の配置の自由度が高く、回転分離体を回転軸線に平行な方向や軸線まわりの方向において長く保持させ、強固に保持させることができる。
（１０）前記回転分離体保持部材が前記回転分離体を内側から保持する （８）項に記載の切削液・切粉分離装置。
本項の切削液・切粉分離装置によれば、回転分離体内に受部材も回転分離体保持部材も収容されることとなり、装置をコンパクトに構成することができる。
（１１）前記回転分離体保持部材が前記受部材と前記受部材保持部材との一方により保持されて前記回転分離体を保持し、前記回転伝達装置が前記受部材と前記受部材保持部材との一方に回転を伝達する （８）項ないし（１０）項のいずれかに記載の切削液・切粉分離装置。
【００１２】
（１２）前記回転伝達装置が、前記回転分離体および前記受部材と同心に設けられた回転軸を含み、前記回転分離体保持部材および前記受部材保持部材が前記回転軸に相対回転不能に接続された （８）項ないし（１１）項のいずれかに記載の切削液・切粉分離装置。
回転軸が回転させられることにより、回転分離体保持部材および受部材保持部材が回転させられ、回転分離体および受部材が一体的に回転させられる。
回転軸が受部材保持部材を構成してもよい。
（１３）前記回転軸が前記回転分離体を軸線方向に貫通して設けられた（１２）項に記載の切削液・切粉分離装置。
（１４）前記回転駆動源が前記回転軸と同心に設けられた（１２）項または（１３）項に記載の切削液・切粉分離装置。
本項の発明によれば、切削液・切粉分離装置を、回転分離体の回転軸線と直交する方向においてコンパクトに構成することができる。
【００１３】
（１５）前記回転分離体が上向きに開口した上向き開口を有するとともに、前記切削液の通過は許容するが、前記切粉の通過は阻止する複数の開口を備えて前記上向き開口の少なくとも外周部を覆う切削液排出用閉塞部材を備え、その切削液排出用閉塞部材が前記切削液排出部を構成している （１）項ないし（１４）項のいずれかに記載の切削液・切粉分離装置。
本項の切削液・切粉分離装置によれば、遠心力によって飛ばされた切粉が回転分離体の内側面に当たって飛ばされたり、転がったりして上方へ移動することがあっても、切削液排出用閉塞部材により回転分離体の外へ飛び出すことが阻止され、切削液のみが排出される。
なお、回転分離体に上向き開口を設けず、回転分離体の側壁の上部に、厚さ方向に貫通する開口を設けて切削液が排出されるようにしてもよい。この場合、側壁の開口が設けられた部分が切削液排出部を構成する。
また、切粉が上方へ移動することがないのであれば、切粉の飛出し防止を考慮することなく、切削液排出部を構成することができ、切削液排出口の形状，寸法等を設定することができる。
【００１４】
（１６）前記回転分離体の前記内側面に保持された切粉を除去する切粉除去装置を含む （１）項ないし（１５）項のいずれかに記載の切削液・切粉分離装置。
切粉除去装置を設ければ、回転分離体の内側面に保持された切粉をより確実に内側面から離間させ、排出することができる。
（１７）前記回転分離体の前記内側面の横断面形状が円形であり、前記切粉除去装置が、
前記内側面に沿って前記回転分離体の軸方向の成分を有する方向に延びる第一除去部を備え、回転分離体内に、同心にかつ回転分離体に対して相対回転可能に収容された少なくとも１つの切粉除去部材と、
その切粉除去部材と前記回転分離体とを相対的に回転させる相対回転装置と
を含む（１６）項に記載の切削液・切粉分離装置。
第一除去部がゴムあるいはその類似物から成る場合には内側面に接触した状態で配設することが可能であるが、第一除去部が金属等硬質材料から成る剛体である場合には、内側面との間に相対回転を許容する隙間を残して配設することが望ましい。
相対回転装置は、（ａ）後述するように、回転分離体の回転を停止させるブレーキを含み、慣性を利用して切粉除去部材を回転分離体に対して回転させる装置としてもよく、（ｂ）専用の回転駆動源を備え、切粉除去部材を回転分離体に対して強制的に回転させる装置としてもよく、（ｃ）切粉除去時に切粉除去部材を停止状態に保ち、回転分離体を切粉除去部材に対して回転させる装置としてもよい。 （ｂ）の場合、相対回転装置は、例えば、後述するように、常には切粉除去部材が、回転分離体からの作用により回転分離体と共に回転することを許容し、切粉除去時には切粉除去部材を強制的に回転させ、回転分離体に対して回転させる装置とされる。この際、切粉除去部材を回転分離体に対して回転させればよく、回転分離体は停止させられてもよく、切粉除去部材とは異なる角速度で回転させられていてもよい。また、切粉除去時以外のときには、切粉除去部材を分離回転体と同期させて回転させ、両者が相対回転しないようにしてもよい。（ｃ）の場合、例えば、常には、切粉除去部材が回転分離体と共に回転することを許容し、回転分離体に保持された切粉によって切粉除去部材が回転分離体と共に回転させられ、切粉除去時に切粉除去部材の回転を阻止する回転阻止装置を設ける。回転分離体の回転を止めず、切粉除去部材の回転を止めて両者が相対回転する状態を生じさせ、切粉除去部材に切粉を除去させるのである。
切粉除去部材は１つ設けてもよく、複数設けてもよい。切粉除去部材を１つ設ける場合、その回転のバランスが悪いのであれば、バランスウェイトを設け、切粉除去部材がバランス良く回転するようにすることが望ましい。また、切粉除去部材を複数設ける場合、２つ設けてもよく、３つ設けてもよく、４つ以上設けてもよく、等角度間隔に設け、軸対称とすることが望ましい。
第一除去部は、回転分離体の軸方向の成分のみを有し、周方向の成分は有しない方向へ延びるものとしてもよく、両方向の成分を有する方向へ延びるものとしてもよい。
切粉除去部材と回転分離体とが相対回転させられれば、その相対回転により、第一除去部が内側面に保持された切粉をこそげ取って除去し、除去された切粉は、受部材と回転分離体の内側面との間の隙間を通って落下し、回転分離体外へ排出される。
【００１５】
（１８）前記回転分離体が上向きに開口する上向き開口を備えるとともに、前記切削液の通過は許容するが、前記切粉の通過は阻止する複数の開口を有して前記上向き開口の少なくとも外周部を覆う切削液排出用閉塞部材を備えてその切削液排出用閉塞部材が前記切削液排出部を構成し、かつ、前記切粉除去部材が、前記切削液排出用閉塞部材に沿って前記回転分離体の回転軸線に直角な方向の成分を有する方向に延びる第二除去部を備えた（１７）項に記載の切削液・切粉分離装置。
第二除去部は、切削液排出用閉塞部材との間に、第二除去部と切削液排出用閉塞部材との相対回転を許容する隙間を残して回転分離体内に収容されることが望ましい。
第二除去部は、第一除去部と同様に、ゴムあるいはその類似物から成るものとし、切削液排出用閉塞部材に接触した状態で配設してもよく、第二除去部が金属等硬質材料から成る剛体である場合には、切削液排出用閉塞部材との間に相対回転を許容する隙間を残して配設することが望ましい。
第二除去部は、回転分離体の半径方向の成分のみを有するものとしてもよく、半径方向と周方向との両方の成分を有するものとしてもよい。
第二除去部を設ければ、例えば、切粉が上向き開口側へ移動し、切削液により切削液排出用閉塞部材に付着させられることがあっても、第二除去部によってこそげ落とされる。
【００１６】
（１９）前記切粉除去部材が複数、等角度間隔に設けられた（１７）項または（１８）項に記載の切削液・切粉分離装置。
本項の切削液・切粉分離装置によれば、複数の切粉除去部材がバランス良く回転させられる。
（２０）前記回転駆動装置が前記回転分離体の回転を停止させるブレーキを含み、そのブレーキが前記相対回転装置を構成している（１７）項ないし（１９）項のいずれかに記載の切削液・切粉分離装置。
本項に記載の切削液・切粉分離装置においては、回転分離体が回転させられるとき、内側面に保持された切粉によって切粉除去部材が回転させられ、回転分離体と共に回転させられるが、回転分離体の回転がブレーキによって停止させられた状態では、切粉除去部材のみが慣性によって回転させられ、回転分離体に対して回転させられて切粉をこそげ取り、除去する。
相対回転装置は、専用の駆動源を有する装置としてもよい。しかし、本項の構成を採用すれば相対回転装置を簡易化することができる。
【００１７】
（２１）前記回転分離体の外側に回転分離体を囲んで設けられ、前記切削液排出部から排出された切削液を収容する切削液収容部材を含む （１）項ないし（２０）項のいずれかに記載の切削液・切粉分離装置。
本項に記載の切削液・切粉分離装置によれば、例えば、切粉から分離させられた切削液を集めて再利用することができ、また、切削液が排出されたままとされず、回転分離体の周囲に切削液が飛散して周辺部材にかかり、汚すことが防止される等の効果が得られる。
（２２）前記切削液収容部材が、
上向きに開口し、前記切削液排出部より下方の位置に前記回転分離体を囲んで設けられた切削液受部と、
その切削液受部および前記回転分離体の上方空間を覆う覆い部と、
前記切削液受部からの切削液の流出を許容する切削液流出部と
を備えた（２１）項に記載の切削液・切粉分離装置。
切削液受部は水平に設けられてもよい。しかし、水平面に対して傾斜させられることが望ましく、その傾斜した切削液受部の最も低い部分に切削液流出部が設けられることが望ましい。
切削液が切削液排出部から上方へ流出することがあっても、覆い部に当たって落ちて切削液受部により受けられ、切削液の飛散が防止されるとともに、確実に切削液受部により受けられる。
【００１８】
（２３）前記回転分離体内へ上方から投入される前記切削液付着切粉を案内する投入ガイドを含む （１）項ないし（２２）項のいずれかに記載の切削液・切粉分離装置。
【００１９】
（２４）前記回転分離体の下向き開口に対向して設けられ、前記切削液が分離除去された切粉を収容する切粉収容容器を含む （１）項ないし（２３）項のいずれかに記載の切削液・切粉分離装置。
切粉収容容器は、切削液・切粉分離装置の装置本体に着脱可能に設けられてもよく、固定して設けられてもよく、移動可能に設けられてもよい。切粉収容容器を移動可能に設ける場合、例えば、車輪を備えた台車により構成してもよく、切粉処理場に接続されたコンベヤ等、切粉搬送装置により構成してもよい。
本項に記載の切削液・切粉分離装置によれば、切削液が分離除去され、回転分離体から落とされた切粉を集めて容易に処理することができる。
【００２０】
【発明の実施の形態】
以下、本発明の実施形態を図面に基づいて詳細に説明する。
図１において符号１０はフレームであり、本切削液・切粉分離装置の装置本体を構成している。フレーム１０により回転分離体としての回転分離筒１２，受部材としての受板１４および回転分離筒１２と受板１４とを回転させる回転駆動装置１６等が支持されている。
【００２１】
回転駆動装置１６は、電動モータ１８を回転駆動源とする。電動モータ１８は、本実施形態においてはブレーキ機能を有するモータとされており、回転駆動装置１６は回転分離筒１２の回転を止めるブレーキを含んでいる。ブレーキは、例えば、電気式ブレーキとされ、あるいは機械式ブレーキとされ、電動モータ１８の回転を停止させて回転分離筒１２を強制的に停止させる。電気式ブレーキは、例えば、前述の発電制動装置とされ、あるいは逆相制動装置とされ、機械式ブレーキは、例えば、電動モータ１８のロータあるいは出力軸を拘束する拘束部材を含んで構成される。
【００２２】
電動モータ１８はフレーム１０により下向きに保持されており、その出力軸２０はフレーム１０により軸受２２を介して鉛直軸線まわりに回転可能に支持されている。出力軸２０の回転は継手部材２６を介して回転軸２８に伝達される。回転軸２８は、その上端部において継手部材２６を介して出力軸２０に同心に連結され、下端部においてフレーム１０により軸受３０を介して回転可能に支持されている。電動モータ１８は回転軸２８と同心に設けられ、回転軸２８は、電動モータ１８を介して、その上下両端部をそれぞれフレーム１０により回転可能に支持されているのであり、電動モータ１８によって鉛直軸線まわりに回転させられる。回転軸２８は回転体ないし回転部材の一種であり、回転伝達装置を構成し、電動モータ１８と共に回転駆動装置１６を構成している。軸受３０は、回転軸２８に固定して設けられたカバー３２によって覆われている。カバー３２の上面３４は、回転軸２８から離れるほど下方へ傾斜させられたテーパ面であって、下部ほど直径の大きいテーパ円筒面とされている。
【００２３】
回転軸２８の下端部には、回転分離体保持部材としての保持枠３６が固定されている。保持枠３６は、回転軸２８に同心状に固定されたボス部３８と、ボス部３８から半径方向外向きに延び出させられた複数のアーム４０とを有し、回転軸２８に相対回転不能に接続されて回転軸２８と一体的に回転させられる。複数のアーム４０はそれぞれ、Ｌ字形を成し、ボス部３８から半径方向外向きに延び出させられた後、回転軸２８の軸線に平行に、かつ上方へ延び出させられており、上下方向に延びる保持部４２を備えている。複数のアーム４０は等角度間隔に設けられ、各保持部４２の内側面（回転軸２８側の面）４４はそれぞれ、回転軸２８の軸線を中心とし、横断面形状が円形を成すテーパ面であって、上部ほど直径が直線的に増大するテーパ面の一部を成すように構成されている。
【００２４】
上記複数のアーム４０の各保持部４２の内側に前記回転分離筒１２が着脱可能にかつ鉛直方向に固定されている。回転分離筒１２は、本実施形態においては、金属製、例えば、ステンレススチール製とされており、上向きに開口する上向き開口４６と、下向きに開口する下向き開口４８とを備えている。また、回転分離筒１２の内側面は、横断面形状が円形を成すとともに、内径が上部に向かうに従って直線的に増大するテーパ面であるテーパ内周面５０とされている。回転分離筒１２の外側面も同様の傾斜のテーパ外周面５２とされている。
【００２５】
これらテーパ内周面５０およびテーパ外周面５２の傾斜は、アーム４０の保持部４２の内側面４４の傾斜と同じ大きさとされており、回転分離筒１２は複数のアーム４０の各保持部４２の中に同心状に嵌合され、複数のアーム４０にそれぞれ、複数のボルト（図示省略）等、適宜の固定手段により着脱可能に固定されて保持されている。保持枠３６は回転軸２８に同心に固定されており、保持枠３６により同心に保持された回転分離筒１２は回転軸２８と同心に、かつ回転軸２８の鉛直な軸線まわりに回転可能に設けられ、回転軸２８と一体的に回転させられる。また、回転分離筒１２は、回転軸２８の軸受２２，３０により支持された部分の間の部分に設けられており、回転軸２８は回転分離筒１２を貫通している。
【００２６】
テーパ内周面５０の傾斜角度は、２度以上であることが望ましく、３度以上であることが更に望ましく、５度以上であることが更に望ましく、３０度以下であることが望ましく、１５度以下であることが更に望ましく、１０度以下であることが更に望ましい。テーパ内周面５０の傾斜角度は、後述するように、回転分離筒１２が回転させられて切削液と切粉とが分離させられるとき、テーパ内周面５０の傾斜および遠心力の作用により、切削液はテーパ内周面５０に沿って上方へ流れるが、切粉は遠心力によってテーパ内周面５０に保持された状態に保たれる大きさに設定されることが必要であるが、切粉の形状，寸法および切削液の性状ないし種類（例えば、切削油であるか切削水であるか）に応じて適切な傾斜角度に設定される。本切削液・切粉分離装置は、主として、まがりばかさ歯車，ハイポイドギヤ等のまがりばかさ状歯車を加工する装置に設けられ、歯車の切削加工により生じる切削屑である切粉の処理に使用され、切粉は比較的短く切断された破片状を成し、テーパ内周面５０の傾斜角度は、本実施形態においては、７度とされている。
【００２７】
前記上向き開口４６は、切削液排出用閉塞部材としての蓋体５６によって覆われている。蓋体５６は、本実施形態においては、金属製、例えば、ステンレススチール製の薄い板状を成し、その中央部に切削液付着切粉を投入するための投入口５８が設けられ、外周部に、蓋体５６を厚さ方向に貫通して複数の開口６０が設けられている。これら開口６０は、切削液の通過は許容するが、切粉の通過は阻止する大きさとされており、本実施形態においては、蓋体５６が切削液排出部を構成している。
【００２８】
回転分離筒１２の前記下向き開口４８の下方には、下向き開口４８に対向して、切粉収容容器としての切粉収容台車６６が配置されており、切削液が分離除去された切粉を収容する。切粉収容台車６６は移動可能であり、作業者は切粉収容台車６６を移動させ、切粉を容易に処理場へ搬送することができる。
【００２９】
前記受板１４は、本実施形態においては円板状を成し、前記回転軸２８の下部であって、回転分離筒１２内の下向き開口４８よりやや上側の位置に回転軸２８と同心に、かつ相対回転不能に設けられており、回転軸２８および回転分離筒１２と一体的に回転させられる。受板１４は回転分離筒１２に対しても同心であり、その上面は円形の平面を成し、上向きの受面７０を構成し、回転分離筒１２および回転軸２８と同心であって下向き開口４８より上側に位置している。受板１４ないし受面７０の直径であって、回転分離筒１２の回転軸線である回転軸２８の鉛直な軸線と直交する方向の寸法は、テーパ内周面５０の軸線方向において受面７０に対応する部分の内径より小さくされており、受面７０とテーパ内周面５０との間には、切粉の通過可能な円環状の隙間７２が残されている。
【００３０】
本実施形態においては、回転軸２８の受板１４を保持する部分が受部材保持部材を構成し、受部材保持部材が回転軸２８に相対回転不能に接続され、受部材保持部材により回転分離体保持部材としての保持枠３６が保持されて回転分離筒１２を保持している。回転分離体保持部材は受部材保持部材を介して回転軸２８に相対回転不能に接続され、回転軸２８が受部材保持部材に電動モータ１８の回転を伝達する。回転軸２８の受板１４が設けられた部分のみが受部材保持部材を構成し、保持枠３６は回転軸２８に直接接続され、受部材保持部材と回転分離体保持部材とにそれぞれ、回転軸２８の回転が伝達されると考えることもできる。いずれにしても、本実施形態においては、回転駆動装置１６の全部が回転分離筒１２と受板１４とに共通である。
【００３１】
回転分離筒１２内には、切粉除去部材としての複数、例えば、３本のスクレーパ８０が収容されている。これらスクレーパ８０および本切削液・切粉分離装置の回転分離筒１２および蓋体５６以外の構成要素は、本実施形態においては、金属製、例えば、通常の構造用の鋼製とされている。３本のスクレーパ８０はそれぞれ、板状を成し、切粉除去部材保持部材としての回転部材の一種であるスリーブ８４により保持されている。スリーブ８４は、回転軸２８により軸受８２を介して鉛直軸線まわりに回転可能に支持されており、複数のスクレーパ８０は、本体部ないし被保持部８５においてスリーブ８４に等角度間隔に固定されて保持され、スリーブ８４と共に回転軸２８の軸線まわりに回転可能に設けられている。複数のスクレーパ８０は、軸対称に保持されているのである。これらスクレーパ８０は、本実施形態においては、回転分離筒１２内に、同心にかつ回転分離筒１２および回転軸２８に対して相対回転可能であって、回転分離筒１２の回転軸線まわりに回転可能に収容されている。
【００３２】
３本のスクレーパ８０はそれぞれ、被保持部８５のスリーブ８４から半径方向外向きに延び出させられた突出端部に設けられ、回転分離筒１２のテーパ内周面５０の傾斜に対応した傾斜を有する第一除去部としての第一掻取り部８６と、前記蓋体５６に沿って回転分離筒１２の回転軸線に直角な方向の成分を有する方向に延びる第二除去部としての第二掻取り部８８とを備えている。
【００３３】
第一掻取り部８６は、回転分離筒１２の回転軸線を含む鉛直な平面内に位置し、回転分離筒１２の軸方向の成分および半径方向の成分を有し、周方向の成分は有せず、テーパ内周面５０を外周面の一部とする円錐の母線に沿う方向に延びる状態で、テーパ内周面５０に沿って設けられており、テーパ内周面５０との間に回転分離筒１２に対する相対回転を許容する隙間９０（図２参照）を残して配設されている。
【００３４】
第二掻取り部８８は、第一掻取り部８６の上端部から、蓋体５６に沿って、蓋体５６の開口６０が設けられた部分に対応して延び出させられており、回転分離筒１２の回転軸線に直角な方向の成分であって、半径方向の成分を有する方向に延びている。第二掻取り部８８は、蓋体５６との間に回転を許容する隙間９２を残して設けられている。上記隙間９０，９２の大きさは、後述するように、回転分離筒１２の回転時にテーパ内周面５０に保持された切粉がスクレーパ８０を押して回転させ、回転分離筒１２とスクレーパ８０との相対回転時にはスクレーパ８０がテーパ内周面５０や蓋体５６に付着した切粉を掻き落とすために、４ミリ以下にすることが望ましく、２ミリ以下にすることが更に望ましく、１ミリ以下にすることが更に望ましい。
【００３５】
上記回転分離筒１２の外側であって、保持枠３６のアーム４０の外側には、切削液収容部材としての切削液収容器１００が配設されている。切削液収容器１００は前記フレーム１０によって支持されており、上向きに開口し、前記蓋体５６より下方の位置に回転分離筒１２を囲んで設けられた容器状の切削液受部１０２と、その切削液受部１０２と回転分離筒１２の上方空間を覆う覆い部１０４と、切削液受部１０２からの切削液の流出を許容する切削液流出部としての切削液流出口１０６とを有する。
【００３６】
切削液受部１０２は、水平面に対して傾斜させられており、その傾斜した切削液受部１０２の最も低い部分は、切削液受部１０２の傾斜と同じ傾斜で側方へ突出させられ、切削液流出口１０６を構成している。切削液流出口１０６は、例えば、図示を省略するホースにより切削液回収器に接続されて切削液が溜められ、再利用されるようにすることも可能であり、本切削液・切粉分離装置が設けられる切削加工装置の機械本体に設けられた切削液供給部に戻し、再利用されるようにすることも可能である。
【００３７】
上記回転分離筒１２に近接して、切削液付着切粉を搬送する搬送装置としてのチップコンベヤ１２０が配設されている。チップコンベヤ１２０は、回転分離筒１２の上向き開口４６から回転分離筒１２内に切削液付着切粉を投入するように設けられており、その先端には投入部１２２が設けられ、蓋体５６の投入口５８に設けられた投入ガイド１２４に向かって延び出させられている。
【００３８】
投入ガイド１２４は、回転分離筒１２の上方から投入される切削液付着切粉を回転分離筒１２内へ案内する。投入ガイド１２４は、筒状、本実施形態においては、横断面形状が円形の円筒状を成し、前記フレーム１０により回転分離筒１２と同心に、かつ回転可能に嵌合され、保持されている。投入ガイド１２４の上端部には、上部ほど直径が直線的に増大するテーパ状のガイド部１３２が設けられ、投入ガイド１２４は、そのストレートな下端部が前記蓋体５６の中央部に設けられた投入口５８を通って回転分離筒１２内に位置させられるとともに、ガイド部１３２は蓋体５６から上方へ突出する状態で設けられている。投入ガイド１２４のストレート部は、投入口５８には回転分離筒１２の回転を許容する隙間を残して嵌合されている。前記チップコンベヤ１２０の投入部１２２は、ガイド部１３２に切削液付着切粉を投入するように設けられており、ガイド部１３２には、その上端縁から、投入ガイド１２４の軸線に平行に立ち上がるとともに、ガイド部１３２の上端縁に沿って遮蔽部１３４が設けられ、投入部１２２から投入される切削液付着切粉の飛散を防止し、ガイド部１３２に投入されるようにされている。投入ガイド１２４は、チップコンベヤ１２０の配置に応じてフレーム１０に対して回され、遮蔽部１３４が投入部１２２から投入される切削液付着切粉の飛散を良好に防止する位置に位置させられている。
【００３９】
本切削液・切粉分離装置は、制御装置１５０により制御される。制御装置１５０はコンピュータを主体として構成されており、図示を省略する駆動回路を介して電動モータ１８，電動モータ１８のブレーキおよびチップコンベヤ１２０等を制御する。制御装置１５０には入力装置１５２が接続されており、本切削液・切粉分離装置の作動条件等の設定等が作業者によって行われる。切削液・切粉分離装置は、タイマを含む専用の電子回路により制御してもよい。
【００４０】
次に作動を説明する。
本切削液・切粉分離装置は、例えば、まがりばかさ状歯車を加工するまがりばかさ状歯車加工装置に設けられて切削液付着切粉の処理に用いられる。本切削液・切粉分離装置は、回転分離筒１２等の構成要素がフレーム１０により保持されていて設置が容易であり、また、電動モータ１８，回転軸２８，回転分離筒１２，受板１４およびスクレーパ８０が互いに同心に設けられて、コンパクトに構成されており、加工装置への設置が容易である。
【００４１】
歯車の切削加工時には、切削油，けんだく液，水溶液等の切削液が加工工具や歯車素材にかけられ、加工により生じた切削液付着切粉はチップコンベヤ１２０により加工領域から搬出され、投入部１２２，投入ガイド１２４から回転分離筒１２内に投入され、受板１４上により受けられて受面７０上に載る。切削液付着切粉の投入時には、電動モータ１８が回転させられており、回転軸２８，受板１４および回転分離筒１２が予め設定された速度で回転させられている。そのため、回転分離筒１２内に投入され、受面７０より受けられた切削液付着切粉は遠心力および回転している受面７０に当たった際の衝撃力によって外周側へ飛ばされ、回転分離筒１２のテーパ内周面５０に受けられる。受面７０は回転分離筒１２の下向き開口４８より上側の位置に設けられており、遠心力等によって飛ばされた切粉は、テーパ内周面５０から外れることなく受けられる。
【００４２】
切削液付着切粉は、遠心力およびテーパ内周面５０との間の摩擦力によってテーパ内周面５０に保持された状態に保たれる一方、切削液はテーパ内周面５０の傾斜および遠心力の作用により、テーパ内周面５０をつたって上昇させられ、切削液と切粉とが分離させられる。そして、切削液は、蓋体５６の開口６０を通って回転分離筒１２の外へ排出され、切削液収容器１００の切削液受部１０２により受けられるとともに、その傾斜によって切削液流出口１０６へ流れ、切削液回収器に溜められ、あるいは切削液供給部に戻される。開口６０から上方へ飛び出した切削液は、覆い部１０４に当たって落ち、切削液受部１０２により受けられる。本切削液・切粉分離装置は歯車加工装置と共に設けられており、歯車の加工と並行して切削液付着切粉を分離装置へ搬送して切削液を分離させることができ、切削液を迅速に回収することができる。
【００４３】
回転分離筒１２内に切粉が投入され、遠心力等により外周側へ飛ばされるとき、切粉が上昇することがあっても、蓋体５６の開口６０を通過することができず、切削液のみが回転分離筒１２から流出し、切粉は蓋体５６に引っかかり、付着し、飛出しが防止されて回転分離筒１２内に残る。蓋体５６は、回転分離筒１２内に投入され、受面７０により受けられるとともに遠心力等により飛ばされた切削液付着切粉のうち、比較的大きい切粉がテーパ内周面５０に当たったときにはね上がったり、ころがったりして上方へ移動することがあっても回転分離筒１２の外へ飛び出してしまうことを防止することを主たる目的として設けられている。
【００４４】
上記のように回転分離筒１２が回転させられるとき、その回転開始当初はスクレーパ８０は停止している。回転分離筒１２の回転に伴って、図２に示すように、回転分離筒１２のテーパ内周面５０に切粉１６０が保持されて溜まれば、それらがスクレーパ８０と係合してそれを駆動し、スクレーパ８０を回転分離筒１２と共に回転させる。
【００４５】
チップコンベヤ１２０による切削液付着切粉の回転分離筒１２への投入は連続して行われ、切削液と切粉とが分離させられる。そして、予め設定された条件の成立時、例えば、まがりばかさ状歯車の加工工数が設定数に達した場合、切削液付着切粉の投入量が設定量に達した場合、連続して行われる分離作動時間が設定時間に達した場合等に電動モータ１８の回転がブレーキによって停止させられ、回転軸２８の回転が止められて回転分離筒１２の回転が止められる。この停止条件は、前記入力装置１５２を用いて作業者により予め設定されており、分離作業の開始が指示されれば、上記設定に従って制御装置１５０が電動モータ１８およびチップコンベヤ１２０等を制御し、切削液付着切粉の搬送，投入，分離が行われる。回転分離筒１２が停止させられ、遠心力が作用しなくなれば、テーパ内周面５０に保持されていた切粉の多くは重力によってテーパ内周面５０から離れて落下し、テーパ内周面５０と受板１４との間の隙間７２から下向き開口４８を通って切粉収容台車６６により受けられ、収容される。前記軸受３０を覆うカバー３２の上面３４は、回転軸２８から離れるほど下方へ傾斜させられたテーパ面であって、下部ほど直径の大きいテーパ円筒面とされており、切粉が落下するとき、上面３４上に載ることがあっても、傾斜により落下させられる。なお、回転分離筒１２の回転停止時には、チップコンベヤ１２０による切削液付着切粉の投入も停止される。切削液・切粉分離装置がタイマを含む専用の電子回路により制御される場合、回転分離筒１２は、タイマにより設定された時間、回転させられ、設定時間の経過時に電動モータ１８の回転がブレーキによって停止させられ、回転分離筒１２の回転が止められる。この場合、チップコンベヤ１２０による切削液付着切粉の搬送，投入もタイマによる時間設定に基づいて行われ、回転分離筒１２の停止時には搬送，投入が停止される。
【００４６】
また、スクレーパ８０は回転軸２８により回転軸２８に対して回転可能に保持されているため、回転軸２８が回転を止められても慣性により回転し続け、回転分離筒１２に対して相対的に回転し、第一掻取り部８６がテーパ内周面５０に付着している切粉をこそげ取る。第二掻取り部８８は蓋体５６に対して相対的に回転し、蓋体５６に付着している切粉があればこそげ取る。回転分離筒１２および蓋体５６は、本実施形態においては、ステンレススチールによって作られており、表面が滑らかで摩擦係数が小さく、切粉１６０が容易に掻き落とされる。掻き落とされた切粉１６０は、テーパ内周面５０と受板１４との間の隙間７２から下向き開口４８を通って落下し、切粉収容台車６６により受けられ、収容される。本実施形態においては、ブレーキ８０が相対回転装置を構成し、複数のスクレーパ８０と共に切粉除去装置を構成しているのである。スクレーパ８０および回転分離筒１２は金属製であるが、第一，第二掻取り部８６，８８とテーパ内周面５０および蓋体５６に接触させられておらず、互いに接触して損傷することなく、切粉１６０が掻き落とされる。
なお、回転分離筒１２および蓋体５６は全体がステンレススチール製とされることは不可欠ではなく、少なくとも切粉１６０と接触する面がステンレススチール製とされればよい。
【００４７】
電動モータ１８の回転がブレーキにより停止させられて回転分離筒１２が急激に停止させられれば、停止時の減速度が大きく、停止時に切粉１６０および回転分離筒１２に作用する衝撃によってもテーパ内周面５０に保持された切粉が落下する。また、蓋体５６の開口６０に切粉が挟まることがあっても外れ、落下して切粉収容台車６６に収容される。
【００４８】
このように回転分離筒１２が停止させられるとともに、テーパ内周面５０に保持された切粉１６０が除去されたならば、チップコンベヤ１２０による切削液付着切粉の回転分離筒１２への搬送，投入および分離が再開される。これら搬送等は、予め設定された作業再開条件の成立時、例えば、回転分離筒１２の停止から設定時間の経過時あるいは停止後のまがりばかさ状歯車の加工工数が設定数に達した場合に再開される。再開時にも切削液付着切粉の投入時には、回転分離筒１２および受板１４が予め設定された速度で回転させられているようにされる。なお、作業者は、切粉収容台車６６を見て、切粉１６０が溜まったならば、切粉収容台車６６を移動させて溜まった切粉１６０を処理場へ搬送する。この間、別の空の切粉収容台車６６を回転分離筒１２の下向き開口４８に対向して設け、切粉１６０を収容させてもよく、あるいは分離装置の分離作動中（回転分離筒１２の回転中）に収容された切粉を処理し、回転分離筒１２の停止前に戻すようにしてもよい。また、切粉収容台車６６に切粉収容量検出装置を設け、切粉が設定量以上収容されたならば、報知装置によって作業者に報知され、それに基づいて切粉を処理するようにしてもよい。
【００４９】
制御装置１５０の回転駆動装置１６，チップコンベヤ１２０を予め設定された条件に従って制御し、作動を開始，停止および再開させる部分が分離制御部を構成し、回転分離筒１２および受板１４が回転している状態で切削剤付着切粉が回転分離筒１２内に投入されるように回転，切粉搬送，投入を制御する部分が切粉投入時回転制御部を構成し、分離制御部を構成している。
【００５０】
切削液・切粉分離装置がタイマを含む専用の電子回路により制御される場合、回転分離筒１２の回転時間と共に回転分離筒１２の停止時間もタイマにより設定され、設定された停止時間が経過したならば回転分離筒１２の回転等が自動で再開されるようにしてもよく、作業者の指示により再開されるようにしてもよい。前者の場合、タイマの作動により、切削液・切粉の分離および停止が設定された時間ずつ自動で繰り返し実行され、これら一連の分離および停止の開始および終了が作業者により指示される。回転時間ないし分離時間および停止時間は、作業者により設定されてもよく、予め設定されていてもよい。いずれにしても、回転分離筒１２および受板１４が回転している状態で切削剤付着切粉が回転分離筒１２内に投入されるように分離が開始され、再開されるように制御が行われる。
【００５１】
回転分離筒１２の回転開始当初にテーパ内周面５０や蓋体５６に切粉１６０が切削液により付着させられていることがあれば、回転開始当初においてもスクレーパ８０は切粉の掻取り作用を為す。テーパ内周面５０に付着している切粉１６０がスクレーパ８０を回転分離筒１２と共に回転させるほどの量でなければ、電動モータ１８の起動により回転分離筒１２のみが回転させられてスクレーパ８０が回転分離筒１２に対して相対回転させられ、切粉１６０を掻き落とすのである。
【００５２】
切削液・切粉分離装置は、歯車の加工と並行して連続して作動させられ、回転分離筒１２が連続して回転させられて切削液と切粉とを分離させるようにされていたが、設定個数の歯車が加工される毎に切削液・切粉分離装置を作動させ、切削液付着切粉を回転分離筒１２に投入し、分離させるようにしてもよい。
【００５３】
なお、切粉除去部材において第一除去部を、回転分離体の周方向と半径方向との少なくとも一方の方向に移動可能に設けてもよい。例えば、切粉除去部材の、回転分離体に対して同心にかつ相対回転可能に保持される被保持部ないし本体部に対して、第一除去部を、切粉除去部材の回転軸線と平行な軸線まわりに正逆両方向に回動可能に設ける。第一除去部は、通常は、規制部材により規制され、切粉除去部材の回転軸線と直交する方向に位置し、切粉除去部材の相対回転軸線を含む平面内に位置する原位置に位置させられる。規制部材は、例えば、ばね部材の一種である板ばねにより構成される。板ばねは、被保持部と第一除去部とにわたって設けられ、第一除去部の回動方向の両側にそれぞれ設けられ、第一除去部に、回動方向（回転分離体との相対回転方向）において一定以上の力が作用した場合には弾性変形により第一除去部の回動を許容し、力が減少すれば第一除去部を付勢して原位置へ戻す。
【００５４】
切粉除去部材は、第一除去部が回転分離体の内側面との間に相対回転を許容する僅かな隙間を残して配設されており、回転分離体と相対回転させられて切粉をこそげ落とすときに第一除去部に作用する力は、通常は、板ばねが第一除去部を原位置に位置させる力より小さく、第一除去部が原位置に位置して切粉を掻き落とす。それに対し、例えば、切粉が第一除去部と内側面との間の隙間に噛み込まれて第一除去部に一定以上の力を作用させることがあれば、第一除去部は板ばねの付勢力に抗して回動させられ、切粉を乗り越える。このようにすれば、切粉の形状，寸法等により、切粉除去部材と回転分離体の内側面との間の隙間に噛み込まれてそれらを損傷したり、切粉除去部材を相対回転不能とする可能性がある場合には、そのような事態の発生が回避される。
【００５５】
また、第一除去部を被保持部に対して、回転分離体の半径方向に移動可能に設けてもよい。この場合、例えば、第一除去部と被保持部との間に付勢手段の一種である弾性部材としてのばね部材を設け、第一除去部を被保持部から離れる方向であって、回転分離体の内側面に接近する方向に付勢する。この付勢による第一除去部の移動限度は、例えば、第一除去部および被保持部の間に長穴およびピンを含む移動規制装置を設けて規制し、常には第一除去部を前進端位置ないし原位置であって切粉除去位置に位置させ、第一除去部を予荷重が作用した状態で回転分離体の内側面に相対回転を許容する隙間を残して対向させる。
【００５６】
そして、切粉除去部材と回転分離体とが相対回転させられるとき、内側面に保持された切粉が第一除去部と内側面との間の隙間に噛み込まれ、第一除去部に一定以上の力が作用することがあれば、第一除去部はばねの付勢力に抗して内側面から離れる向きに後退させられ、切粉を乗り超える。その後、第一除去部はばねの付勢により切粉除去位置に戻される。このように切粉除去部材を、可動除去部，可動除去部位置規制部を備えた構成とすることにより、より良好に切粉の除去が行われる。
【００５７】
第二除去部についても被保持部ないし本体部に対して移動可能に設け、切粉の形状，寸法等により、噛込みが発生して切削液排出用閉塞部材等に損傷等の可能性がある場合であっても、回避するようにすることができる。例えば、第二除去部を被保持部に対して、切粉除去部材の相対回転軸線に平行な方向に移動可能に設けるとともに、付勢手段を含む規制装置を設け、常には切削液排出用閉塞部材に付着した切粉を除去する切粉除去位置に位置させ、第二除去部と切削液排出用閉塞部材との間に切粉が噛み込まれ、一定以上の力が加えられた場合には、第二除去部が、付勢手段の付勢力に抗して、切粉除去部材の相対回転軸線に平行な方向において後退させられ、切粉を乗り越えるようにする。あるいは、第二除去部を被保持部に対して、切粉除去部材の相対回転軸と直交する軸線まわりに正逆両方向に回動可能に設けるとともに、付勢手段を含む規制装置により、切粉除去位置（第二除去部が切粉除去部材の相対回転軸線を含む平面内に位置する位置）に位置させ、切削液排出用閉塞部材との間に切粉が噛み込まれ、一定以上の力が加えられた場合には、付勢手段の付勢力に抗して回動し、切粉を乗り越えるようにしてもよい。
【００５８】
上記実施形態において切粉除去部材と回転分離体とを相対回転させる相対回転装置は、回転分離体の回転を停止させるブレーキにより構成されていたが、相対回転装置は専用の回転駆動源を有し、切粉除去部材を強制的に回転させる切粉除去部材回転駆動装置としてもよい。その実施形態を図３に基づいて説明する。なお、上記実施形態の切削液・切粉分離装置の構成要素と同じ作用を為す構成要素には同一の符号を付して対応関係を示し、説明を省略する。
【００５９】
本切削液・切粉分離装置の切粉除去装置は、上記実施形態の切粉除去装置と同様に、切粉除去部材としての複数のスクレーパ（図示省略）を備えるとともに、切粉除去部材回転駆動装置１７０を備えている。これらスクレーパは、本実施形態においては、前記スクレーパ８０と同様に、回転駆動装置１６の回転軸２８に軸受８２を介して回転可能に支持されたスリーブ１７２により等角度間隔に保持されている。スリーブ１７２はチップコンベヤ（図示省略）の投入部より上方へ延び出させられており、切粉除去部材回転駆動装置１７０は、回転駆動源としての電動モータ１７８と、電動モータ１７８の出力軸１８０に設けられて電動モータ１７８により駆動される回転伝達部材としてのプーリ１８２，スリーブ１７２の上部に相対回転不能に設けられた回転伝達部材としてのプーリ１８４，これらプーリ１８２，１８４に巻き掛けられた無端の巻掛体としてのベルト１８６を含む回転伝達装置１８８を備えている。
【００６０】
出力軸１８０とプーリ１８２との間には一方向クラッチ１９０が設けられている。この一方向クラッチ１９０は回転伝達許容・遮断装置の一種であり、電動モータ１７８の停止時には、プーリ１８２が出力軸１８０に対して回転することを許容し、電動モータ１７８の回転時には、出力軸１８０の回転をプーリ１８２に伝達するように構成されており、スクレーパが切粉除去部材回転駆動装置１７０により回転させられる。
【００６１】
本実施形態の切削液・切粉分離装置においては、回転分離筒が回転させられるとき、スクレーパは前記スクレーパ８０と同様に、回転分離筒の内周面に保持された切粉により回転分離筒と共に回転させられる。この際、電動モータ１７８は停止させられているが、一方向クラッチによりプーリ１８２が回転し、スクレーパが回転することが許容され、回転分離筒により回転させられるのである。また、スクレーパの回転は一方向クラッチ１９０の作用により電動モータ１７８に伝達されず、電動モータ１７８がつれ回ることはない。そして、本切削液・切粉分離装置においては、回転分離筒の回転をブレーキによって停止させず、電動モータへの電流供給の停止により自然に停止させることができる。回転分離筒の停止後に電動モータ１７８を起動し、スリーブ１７２を回転させ、スクレーパを回転分離筒に対して回転させて、テーパ内周面に保持された切粉を除去させることができるからである。また、回転分離筒の回転とは関係なく、任意の時期にスクレーパを回転させて切粉を除去させることができる。回転分離筒の回転時にスクレーパを回転させ、回転分離筒に対して相対回転させて切粉を除去させることも可能である。回転分離筒の回転速度とは異なる回転速度で回転させて、回転分離筒とスクレーパとを相対回転させるのである。さらに、スクレーパの回転速度を制御することも可能である。
【００６２】
一方向クラッチに代えて、電気的あるいは機械的に接続、遮断されるクラッチを設け、切粉除去部材回転駆動装置の回転駆動源の回転が切粉除去部材に伝達される状態と、伝達されない状態とが得られるようにしてもよい。なお、一方向クラッチ等を設け、スクレーパが回転分離体と共に回転するとき、電動モータがつれ回らないようにすることが望ましいが、不可欠ではなく、一方向クラッチ等の回転伝達許容・遮断装置を省略してもよい。
【００６３】
上記各実施形態の切削液・切粉分離装置においてはスクレーパ８０が設けられ、回転分離筒１２のテーパ内周面５０に保持された切粉が掻き落とされるようにされていたが、スクレーパ８０を設けることは不可欠ではなく、省略してもよい。また、回転分離体保持部材は回転分離体を内側から保持するものとしてもよい。それらの実施形態を図４に基づいて説明する。なお、前記実施形態の切削液・切粉分離装置の構成要素と同じ作用を為す構成要素には同一の符号を付して対応関係を示し、説明を省略する。
【００６４】
本実施形態の切削液・切粉分離装置においては、回転駆動装置１６を構成する回転軸２８の下部に受部材としての受器２００が固定されている。受器２００は外面が円錐形状の容器状を成し、その内周面である受面２０２が上を向いた状態で設けられ、受面２０２は上部ほど直径が直線的に増大するテーパ円筒面とされている。この受器２００に回転分離体保持部材としての複数のアーム２０６の一端部がそれぞれ固定されている。アーム２０６の他端部には回転分離体としての回転分離筒２０８が溶接等、適宜の固定手段によって固定されている。アーム２０６は回転分離筒２０８を内側から保持するとともに、受器２００によって保持されているのである。
【００６５】
回転分離筒２０８は、前記回転分離筒１２と同様に円筒状を成し、上向き開口２１０，下向き開口２１２および上部ほど直径が直線的に増大するテーパ内周面２１４を備え、受器２００および回転軸２８と同心に設けられ、上向き開口２１０は蓋体５６によって覆われている。回転分離筒２０８は、下向き開口２１２が受器２００より下方へ延び出させられ、受器２００は回転分離筒２０８内に位置し、受面２０２は下向き開口２１２よりやや上側に位置する。受器２００の開口部の直径であって、受面２０２の最大直径は、テーパ内周面２１４の、受器２００の開口部に対応する部分の直径より小さくされており、受器２００は、回転分離筒２０８内の下部に配設されるとともに、テーパ内周面２１４との間に半径方向において円環状の隙間２１６を有している。また、投入ガイド１２４のストレート部２１８は長くされ、受器２００の開口に近接させられており、切削液付着切粉が受器２００に近い位置において投入され、受器２００により確実に受けられる。
【００６６】
本実施形態の切削液・切粉分離装置においては、チップコンベヤ（図４には投入部１２２の一部が図示されている）により搬送され、投入部１２２から投入ガイド１２４を通って回転分離筒２０８内に投入された切削液付着切粉は、受器２００により受けられる。切削液付着切粉の投入時には回転軸２８が回転させられ、受器２００および回転分離筒２０８が回転させられており、切削液付着切粉は受器２００によって受けられるとともに遠心力によって回転分離筒２０８側へ飛ばされ、テーパ内周面２１４に受けられる。そして、遠心力およびテーパ内周面２１４の傾斜の作用により、切削液が切粉から分離されて上方へ流れさせられ、蓋体５６の開口６０を通って排出され、切削液収容器１００により受けられる。
【００６７】
電動モータ１８の回転がブレーキにより止められ、回転軸２８が回転を停止させられれば、受器２００，回転分離筒２０８も停止させられる。そして、テーパ内周面２１４に保持された切粉は、遠心力が作用しなくなり、重力によって落下させられるとともに、停止時に切粉および回転分離筒２０８に作用する衝撃によってテーパ内周面２１４から離れ、受部材２００と内周面２１４との間の隙間２１６を通って落下し、切粉収容台車（図示省略）に収容される。
【００６８】
なお、モータをブレーキ機能を有するモータとすることは不可欠ではない。切粉除去部材を設けなくても回転分離体の停止により保持された切粉が重力により落下し、排出されるからであり、また、切粉除去部材を専用の回転駆動装置によって回転させれば、任意の時期に回転分離体に対して回転させて切粉を除去させることができるからである。
【００６９】
また、回転分離体と受部材とを回転させる回転駆動装置は、それらの回転軸線から外れた位置に設けてもよい。また、回転駆動装置に回転分離体を直接、駆動させてもよい。回転駆動源の回転を回転分離体に直接伝達するようにしてもよいのである。例えば、回転分離体の下向き開口側の中心に軸を突設し、フレームに回転可能に支持させるとともに、上部を上記軸と同心に設けた投入ガイドに回転可能に支持させる。そして、回転分離体に回転伝達部材としてのプーリを設け、回転分離体から外れて設けられた駆動源としての電動モータの回転をプーリおよびベルトを含む回転伝達装置により伝達し、回転分離体を回転させる。また、回転分離体あるいは軸に受部材を保持させ、回転分離体を回転させることにより受部材を一体的に回転させる。軸に、回転分離体および受部材とは別の位置に設けられた回転駆動源の回転を回転伝達装置により伝達し、回転分離体，受部材を回転させるようにしてもよい。また、回転分離体をフレームに軸受を介して回転可能に支持させ、回転分離体に回転駆動源の回転を伝達して回転させるようにしてもよい。さらに、受部材を回転駆動装置により直接駆動してもよい。
【００７０】
さらに、上記各実施形態においては、切削液付着切粉の搬送，投入，分離の各停止，再開は自動的に行われるようにされていたが、作業者の手動操作により、停止，再開させられるようにしてもよい。
【００７１】
また、回転分離体の回転を停止させて内側面に保持された切粉を排出させるとき、切粉搬送装置による切削液付着切粉の搬送，回転分離体への投入は行ったままとしてもよい。
【００７２】
さらに、回転分離体内への切削液付着切粉の投入と同時に回転分離体および受部材を回転させてもよく、投入後に回転させてもよい。
【００７３】
さらに、上記各実施形態においては、切削液・切粉分離装置が工作機械の一種であるまがりばかさ状歯車加工装置、１つについて設けられていたが、複数の歯車加工装置を含む歯切りラインについて設けてもよい。切削液・切粉分離装置は、例えば、歯切りラインの末尾に設け、複数の歯車加工装置において加工により生じる切粉を搬送装置により切削液・切粉分離装置に搬送する。切削液・切粉分離装置は連続して作動させ、複数の歯車加工装置から搬送されて来る切削液付着切粉について切削液と切粉とを順次分離させることが望ましい。歯切りラインを構成する複数の歯車加工装置は、まがりばかさ状歯車加工装置以外の歯車加工装置でもよい。また、加工対象の種類を異にする複数種類の歯車加工装置について共通に切削液・切粉分離装置を設けてもよい。
【００７４】
また、回転分離体の上向き開口の少なくとも外周部は、網により覆ってもよい。網は、切削液の通過は許容するが、切粉の通過は阻止する大きさの網目を有するものとされ、例えば、金属製、例えば、ステンレススチール製とされる。
【００７５】
さらに、回転分離体保持部材が回転分離体を内側から保持する場合、受部材により保持されることは不可欠ではない。例えば、回転軸に保持させてもよく、例えば、回転軸に回転軸から放射状に延び出す複数のアームを設けて回転分離体保持部材とし、その突出端部に回転分離体の下部の内側面を固定するのである。
【００７６】
また、本発明に係る切削液・切粉分離装置は、まがりばかさ状歯車加工装置以外の歯車加工装置、例えば、平歯車やはすば歯車の加工を行うホブ盤や、歯車加工装置以外の工作機械一般、例えば、切削液付着切粉が破断型であるフライス盤，ブローチ盤等に設けてもよい。加工により生じる切削液付着切粉が分断型の切粉であれば、そのまま回転分離体に投入して切削液と切粉とを分離させればよく、流れ型の切粉であれば、分断装置によって分断してから回転分離体に投入し、切削液と切粉とを分離させることが望ましい。例えば、旋盤であれば、チップブレーカを設け、切粉が分断されるようにすればよい。加工により生じた切削液付着切粉を、加工装置とは別に設けた分断装置へ送り、分断させてもよい。
【００７７】
以上、本発明のいくつかの実施形態を詳細に説明したが、これらは例示に過ぎず、本発明は、前記〔発明が解決しようとする課題，課題解決手段および効果〕の項に記載された態様を始めとして、当業者の知識に基づいて種々の変更、改良を施した形態で実施することができる。
【図面の簡単な説明】
【図１】本発明の実施形態である切削液・切粉分離装置を示す正面図（一部断面）である。
【図２】上記切削液・切粉分離装置において回転分離筒のテーパ内周面に切粉が保持された状態を示す平面図である。
【図３】本発明の別の実施形態である切削液・切粉分離装置を示す正面図（一部断面）である。
【図４】本発明の更に別の実施形態である切削液・切粉分離装置を示す正面図（一部断面）である。
【符号の説明】
１２：回転分離筒 １４：受板 １６：回転駆動装置 １８：電動モータ ２８：回転軸 ３６：保持枠 ４６：上向き開口 ４８：下向き開口 ５０：テーパ内周面 ５６：蓋体 ６０：開口 ６６：切粉収容台車 ７０：受面 ７２：隙間 ８０：スクレーパ ８６：第一掻取り部
８８：第二掻取り部 １００：切削液収容器 １０２：切削液受部
１０４：覆い部 １０６：切削液流出口 １５０：制御装置 １７０：切粉除去部材回転駆動装置 ２００：受器 ２０２：受面 ２０８：回転分離筒 ２１０：上向き開口 ２１２：下向き開口 ２１４：テーパ内周面
２１６：隙間[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an apparatus for separating the cutting fluid and the chips of the cutting fluid adhering chips, which are the chips to which the cutting fluid has adhered, by centrifugal separation, and in particular, the cutting fluid from which the cutting fluid is separated and removed. It relates to facilitating processing.
[0002]
[Prior art]
An apparatus for separating the cutting fluid adhering cutting fluid and the cutting fluid by centrifugation is already known, for example, as described in Patent Document 1. The separation device described in Patent Document 1 includes a cylindrical can with a bottom, a lid that covers an upward opening of the can, a rotating pedestal that is rotatably provided around a vertical axis, and holds the can in a detachable manner. And a rotation driving device for rotating the rotation base. The peripheral wall of the can has a tapered shape whose diameter increases linearly toward the upper part, and a plurality of oil discharge ports are provided in the upper part so as to penetrate the peripheral wall in the thickness direction. The chips with cutting oil attached are contained in the can and the rotating pedestal is rotated, the can is rotated around the vertical axis, and the cutting oil attached chips are blown to the peripheral wall side of the can by centrifugal force. The cutting oil adhering to the chips flows upward along the peripheral wall due to the inclination and centrifugal force of the peripheral wall, is discharged out of the can through the oil discharge port, and is stored in the oil reservoir. The chips from which the cutting oil has been separated remain in the can. When the chips are processed, the can is removed from the rotating base, and a new can is attached to the rotating base.
[0003]
[Patent Document 1]
JP 2000-218464 A
[0004]
[Problems to be solved by the invention, means for solving problems and effects]
However, in the separation apparatus described in Patent Document 1, it is necessary to remove the can from the rotating base in order to process the chips from which the cutting oil has been separated and removed, and instead to install a new empty can. It is.
[0005]
In the cutting fluid / chip separating apparatus using centrifugal separation, the present invention has been made with the background of the above circumstances as an object of facilitating the processing of the chips from which the cutting fluid has been separated. According to the invention, the cutting fluid / chip separating apparatus of each aspect described below is obtained. As with the claims, each aspect is divided into sections, each section is numbered, and is described in a form that cites the numbers of other sections as necessary. This is for the purpose of facilitating understanding of the present invention, and should not be construed as limiting the technical features described in the present specification and the combinations thereof to those described in the following sections. . In addition, when a plurality of items are described in one section, it is not always necessary to employ the plurality of items together. It is also possible to select and employ only some items.
[0006]
In each of the following items, (1) corresponds to claim 1, (2) corresponds to claim 2, (3) corresponds to claim 3, (4) corresponds to claim 4, The combination of (16) and (17) corresponds to claim 5, (18) corresponds to claim 6, and (20) corresponds to claim 7.
[0007]
(1) A cutting fluid / chip separating device that separates cutting fluid adhering chips, which are cutting chips to which cutting fluid has adhered, into cutting fluid and chips,
A cutting fluid that is provided so as to be rotatable about a substantially vertical axis and has an inner surface with a larger inner dimension toward the upper portion, a downward opening that opens downward, and a cutting fluid that is provided above the inner surface and allows the cutting fluid to pass therethrough. A rotating separator having a discharge part;
The rotary separator is provided concentrically and upwardly at a position higher than the height of the downward opening in the rotary separator, and the dimension in the direction perpendicular to the rotation axis of the rotary separator is the inner dimension of the corresponding portion of the inner surface. A receiving member that is provided with a smaller receiving surface and that receives the cutting fluid adhering chips disposed in a state in which a gap through which the chips can pass is left between the inner surface and the inner surface;
A rotation driving device for rotating the rotating separator and the receiving member;
Cutting fluid / chip separation equipment including
It is desirable that the inner surface has a circular cross-sectional shape, and it is desirable that the inner surface be a tapered inner surface whose inner dimension is linearly increased toward the top.
The receiving surface is desirably provided at a position above the downward opening of the rotary separator.
The rotating separator and the receiving member may be rotated by a common rotation driving device, or may be rotated by a dedicated rotation driving device.
The cutting fluid adhering chips thrown into the rotating separation body are received from below by the receiving surface of the receiving member, and the receiving member is rotated by the rotation driving device, so that it is applied to the inner surface of the rotating separation body by centrifugal force and impact force. Flew away and received by the inner surface. The receiving surface is provided at a position higher than the height of the downward opening in the rotating separation body, and the chips blown off by centrifugal force or the like are received by the inner surface. If a receiving surface is provided at a position above the downward opening of the rotating separator, chips blown off by centrifugal force or the like can be received without detaching from the inner surface. Then, when the rotary separator is rotated by the rotation drive device, among the cutting fluid adhering chips received on the inner surface, the chips are restrained from moving relative to the inner surface by the frictional force with the inner surface. On the other hand, the cutting fluid flows upward along the inner surface by the action of the centrifugal force and the inclination of the inner surface, and is discharged out of the rotating separator from the cutting fluid discharge portion. The rotational speed of the rotating separator, the inclination of the inner surface and the friction coefficient of the inner surface are selected so that the chips are held on the inner surface by the frictional force and the cutting fluid flows upward. If the rotation of the rotating separator is stopped, the chips held on the inner surface will not be affected by the centrifugal force, and will fall away from the inner surface due to gravity, leaving a gap between the inner surface and the receiving surface. Through this, the rotary separator is discharged from the downward opening to the outside of the rotary separator.
As described above, according to the cutting fluid / chip separating apparatus of this section, by rotating the rotating separator and the receiving member, the cutting fluid and the chips can be separated and the rotating separator can be stopped. For example, since the chips are discharged from the rotary separator, it is not necessary to remove the rotary separator from the rotary drive device in order to process the chips from which the cutting fluid has been separated, which facilitates the processing of the chips. .
[0008]
(2) The cutting fluid / chip separating apparatus according to item (1), wherein a cross-sectional shape of the inner surface of the rotating separator is circular.
If the cross-sectional shape is circular, for example, a rotating separator can be easily manufactured.
The cross-sectional shape of the inner surface is not limited to a circle, but may be an ellipse or an oval, or a polygon such as a triangle or a rectangle. In the case of a polygon, the corner may be rounded.
(3) The cutting fluid / chip separating apparatus according to (1) or (2), wherein the inner surface of the rotating separator has a tapered surface that linearly increases as the inner dimension increases toward the top.
According to the cutting fluid / chip separating apparatus of this section, the inclination of the inner surface is constant in the direction parallel to the rotation axis of the rotating separator, and the rotating separator can be easily manufactured. Even if the powder is received at any location on the inner surface, the cutting fluid is similarly caused to flow upward.
The inner surface may be a curved surface that increases in a curvilinear manner, for example, in a quadratic curve, as the inner dimension increases toward the top.
[0009]
(4) The cutting fluid / chip separating apparatus according to any one of (1) to (3), wherein the receiving surface of the receiving member forms a circular plane.
When the receiving surface is flat, when the cutting fluid adhering chips are blown off by centrifugal force due to the rotation of the receiving member, there is nothing to prevent the chips from scattering, and the cutting fluid adhering chips received by the receiving surface are blown off. easy.
The receiving surface is not limited to a circular shape, and may be an elliptical shape, an oval shape, or a polygonal shape such as a rectangle.
(5) The cutting fluid / chip separating apparatus according to any one of (1) to (3), wherein the receiving surface of the receiving member forms a tapered cylindrical surface having a larger diameter toward the top.
The receiving member of this section will form a container opening upward, and when the cutting fluid adhering chips are put into the rotating separator, the cutting fluid adhering chips are not given sufficient centrifugal force from the receiving member. Spilling off is well avoided.
[0010]
(6) The rotational driving device is
A rotational drive source;
A rotation transmission device for transmitting the rotation of the rotation drive source to the rotation separator and the receiving member;
The cutting fluid / chip separating apparatus according to any one of (1) to (5).
In the cutting fluid / chip separating apparatus of this section, the rotation drive source is common to the rotating separator and the receiving member. The entire rotation transmission device may be common, or at least a part of the rotation transmission device may be dedicated. In the former case, the rotating separator and the receiving member are fixed to a common rotating member, and the rotation of the common rotation drive source is transmitted to the common rotating member by a common rotation transmitting device. In the latter case, at least a part of the rotation transmission device is dedicated to at least one of the rotating separator and the receiving member. For example, the angular velocities of the rotating separator and the receiving member are different from each other. It is possible to rotate only. In the case of rotating only one side, for example, a cut-off type clutch that can be connected and disconnected is provided in the dedicated portion.
(7) The cutting fluid / chip separating apparatus according to any one of (1) to (6), wherein the rotation driving device includes a brake that stops the rotation of the rotating separator.
When the rotation drive device is a device including a rotation drive source, it is desirable that the rotation drive source is an electric motor having a brake function. In that case, an electric brake that electrically stops the rotation of the electric motor may be used, or a mechanical brake that mechanically stops may be provided. As an electric brake, for example, a power generation braking device that causes an electric motor to function as a generator and dissipates the generated electric energy as heat energy in a resistor, or a brake that reverses the rotation direction of the rotating magnetic field of the electric motor. A reverse phase braking device can be used. For example, the mechanical brake can be configured to be stopped by restraining the rotor or output shaft of the electric motor by a restraining member.
The brake in this section is particularly effective when used in combination with the chip removing member described in (17), but it is not essential to combine it with the chip removing member. For example, if the rotation of the rotating separator is suddenly stopped by a brake, the chips held on the inner surface are effectively dropped by the impact acting on the chips and the rotating separator when stopped.
[0011]
(8) A rotation separator holding member that holds the rotation separator and a receiving member holding member that holds the receiving member, and the rotation transmission device includes at least one of the rotation separator holding member and the receiving member holding member. The cutting fluid / chip separating apparatus according to (6) or (7), wherein the rotation of the rotational drive source is transmitted to one side.
The rotary separator holding member may be a member that holds the rotary separator in a detachable manner or a member that holds the rotary separator in a non-detachable manner. The same applies to the receiving member holding member.
In the aspect in which the rotating separator holding member is held by the receiving member or the receiving member holding member, the rotation is transmitted to the receiving member holding member, and the rotating separator holding member is rotated by the rotation of the receiving member holding member or the receiving member, The rotating separator is rotated. The receiving member holding member may be held by the rotary separator or the rotary separator holding member, and the rotation may be transmitted to one of them. In these cases, the rotating separator and the receiving member are rotated by a common rotation driving device, and the cutting fluid / chip separating device can be simply configured.
(9) The cutting fluid / chip separating apparatus according to (8), wherein the rotating separator holding member holds the rotating separator from the outside.
If the rotary separator is held from the outside by the rotary separator holding member, for example, bolts, nuts, etc. are mixed in the cutting fluid adhering chips, and these foreign substances are put into the rotating separator together with the cutting fluid adhering chips and centrifuged. Even if it is blown off by force, it does not hit the rotating separator holding member and damage the rotating separator holding member.
In addition, the outer part of the rotating separator has no relation to the separation of the cutting fluid and the chips, and the degree of freedom of arrangement of the rotating separator holding member is high, and the rotating separator is arranged in a direction parallel to the rotation axis or around the axis. It can be held long in this direction, and can be held firmly.
(10) The cutting fluid / chip separating apparatus according to (8), wherein the rotating separator holding member holds the rotating separator from the inside.
According to the cutting fluid / chip separating apparatus of this section, the receiving member and the rotating separator holding member are accommodated in the rotating separator, and the apparatus can be configured compactly.
(11) The rotating separation body holding member is held by one of the receiving member and the receiving member holding member to hold the rotating separation body, and the rotation transmission device includes the receiving member and the receiving member holding member. The cutting fluid / chip separating apparatus according to any one of (8) to (10), wherein rotation is transmitted to one side.
[0012]
(12) The rotation transmission device includes a rotating shaft provided concentrically with the rotating separator and the receiving member, and the rotating separator holding member and the receiving member holding member are connected to the rotating shaft so as not to be relatively rotatable. The cutting fluid / chip separating apparatus according to any one of (8) to (11).
By rotating the rotating shaft, the rotating separator holding member and the receiving member holding member are rotated, and the rotating separator and the receiving member are integrally rotated.
The rotating shaft may constitute a receiving member holding member.
(13) The cutting fluid / chip separating apparatus according to item (12), wherein the rotating shaft is provided so as to penetrate the rotating separator in the axial direction.
(14) The cutting fluid / chip separating apparatus according to item (12) or (13), wherein the rotation drive source is provided concentrically with the rotation shaft.
According to the invention of this section, the cutting fluid / chip separating apparatus can be configured compactly in a direction orthogonal to the rotation axis of the rotating separator.
[0013]
(15) The rotating separator has an upward opening that opens upward, and includes a plurality of openings that allow passage of the cutting fluid but prevent passage of the chips, and provide at least an outer peripheral portion of the upward opening. A cutting fluid / swarf separating device according to any one of (1) to (14), further comprising a cutting fluid discharge closing member that covers the cutting fluid discharge closing member. .
According to the cutting fluid / chip separating apparatus of this section, even if the chips blown off by the centrifugal force hit the inner surface of the rotating separator or roll up and move upward, Jumping out of the rotating separator is prevented by the discharge closing member, and only the cutting fluid is discharged.
Note that the cutting fluid may be discharged by providing an opening penetrating in the thickness direction in the upper part of the side wall of the rotating separator without providing the upward opening in the rotating separator. In this case, the part provided with the opening in the side wall constitutes the cutting fluid discharge part.
In addition, if the chips do not move upward, the cutting fluid discharge part can be configured without considering the prevention of chip discharge, and the shape and dimensions of the cutting fluid discharge port can be set. can do.
[0014]
(16) The cutting fluid / chip separating apparatus according to any one of (1) to (15), including a chip removing device that removes the chips held on the inner surface of the rotating separator.
If the chip removing device is provided, the chips held on the inner surface of the rotary separator can be more reliably separated from the inner surface and discharged.
(17) The cross-sectional shape of the inner surface of the rotating separator is circular, and the chip removing device is
A first removal portion extending in a direction having an axial component of the rotating separator along the inner side surface, and at least one accommodated in the rotating separator concentrically and relatively rotatable with respect to the rotating separator; Two chip removal members,
A relative rotation device for relatively rotating the chip removing member and the rotary separator;
The cutting fluid / chip separating apparatus according to item (16).
When the first removal portion is made of rubber or the like, it can be disposed in contact with the inner surface, but when the first removal portion is a rigid body made of a hard material such as metal, It is desirable to leave a clearance allowing relative rotation between the inner surface and the inner surface.
As will be described later, the relative rotation device may include a brake that stops the rotation of the rotating separator, and may be a device that rotates the chip removing member with respect to the rotating separator using inertia. ) A dedicated rotation drive source may be provided, and the chip removal member may be forcibly rotated with respect to the rotating separator. (C) When the chip is removed, the chip removing member is stopped and the rotating separator is stopped. It is good also as an apparatus which rotates with respect to a chip removal member. In the case of (b), as will be described later, for example, the relative rotation device always allows the chip removing member to rotate together with the rotating separator by the action of the rotating separator, and the chips are removed when removing the chips. The removing member is forcibly rotated and rotated with respect to the rotating separator. At this time, the chip removing member may be rotated with respect to the rotating separator, the rotating separator may be stopped, or may be rotated at an angular velocity different from that of the chip removing member. Further, at times other than during chip removal, the chip removal member may be rotated in synchronism with the separation rotator so that they do not rotate relative to each other. In the case of (c), for example, the chip removing member is always allowed to rotate together with the rotating separator, and the chip removing member is rotated together with the rotating separator by the chips held by the rotating separator, A rotation prevention device for preventing rotation of the chip removing member during chip removal is provided. The rotation of the rotary separator is not stopped, the rotation of the chip removing member is stopped to cause a state in which both rotate relative to each other, and the chip removing member removes the chip.
One chip removing member may be provided, or a plurality of chip removing members may be provided. In the case of providing one chip removing member, if the rotation balance is poor, it is desirable to provide a balance weight so that the chip removing member rotates with a good balance. In addition, when a plurality of chip removal members are provided, two, three, four or more may be provided, and it is desirable that they be provided at equiangular intervals and be axisymmetric.
The first removal unit may have only a component in the axial direction of the rotating separator and may extend in a direction not having a circumferential component, or may extend in a direction having components in both directions.
If the chip removing member and the rotary separator are rotated relative to each other, the relative rotation causes the first removal portion to scrape and remove the chips held on the inner surface, and the removed chips are removed from the receiving member. And fall through the gap between the rotary separator and the inner surface of the rotary separator.
[0015]
(18) The rotating separator includes an upward opening that opens upward, and has a plurality of openings that allow the cutting fluid to pass but prevent the passage of the chips, and at least an outer peripheral portion of the upward opening. A cutting fluid discharge blocking member is formed, the cutting fluid discharge blocking member constitutes the cutting fluid discharge portion, and the chip removal member is rotated and separated along the cutting fluid discharge blocking member. The cutting fluid / chip separating apparatus according to item (17), further comprising a second removing portion extending in a direction having a component in a direction perpendicular to the rotation axis of the body.
It is desirable that the second removal portion is accommodated in the rotating separation body while leaving a clearance allowing relative rotation between the second removal portion and the cutting fluid discharge closing member between the second removal portion and the cutting fluid discharge closing member.
Similar to the first removal section, the second removal section is made of rubber or the like, and may be disposed in contact with the cutting fluid discharge closing member. In the case of a rigid body made of a material, it is desirable to leave a clearance allowing relative rotation with the cutting fluid discharge closing member.
The second removal unit may have only the radial component of the rotating separator, or may have both the radial and circumferential components.
If the second removal portion is provided, for example, even if the chips move upward toward the opening and are attached to the cutting fluid discharge closing member by the cutting fluid, they are scraped off by the second removal portion.
[0016]
(19) The cutting fluid / chip separating apparatus according to (17) or (18), wherein a plurality of the chip removing members are provided at equal angular intervals.
According to the cutting fluid / chip separating apparatus of this section, the plurality of chip removing members are rotated with good balance.
(20) The cutting fluid according to any one of (17) to (19), wherein the rotation driving device includes a brake that stops the rotation of the rotating separation body, and the brake constitutes the relative rotation device.・ Chip separation device.
In the cutting fluid / chip separating apparatus described in this section, when the rotating separator is rotated, the chip removing member is rotated by the chips held on the inner surface, and is rotated together with the rotating separator. In a state where the rotation of the rotating separator is stopped by the brake, only the chip removing member is rotated by inertia and rotated with respect to the rotating separator to scrape and remove the chips.
The relative rotation device may be a device having a dedicated drive source. However, if the configuration of this section is adopted, the relative rotation device can be simplified.
[0017]
(21) Any one of (1) to (20), including a cutting fluid containing member that is provided outside the rotating separator so as to surround the rotating separator and that contains the cutting fluid discharged from the cutting fluid discharge portion. The cutting fluid / chip separating apparatus according to crab.
According to the cutting fluid / chip separating apparatus described in this section, for example, the cutting fluid separated from the cutting can be collected and reused, and the cutting fluid is not left discharged, The cutting fluid scatters around the rotary separator and is applied to the peripheral members, so that an effect such as prevention of contamination can be obtained.
(22) The cutting fluid containing member is
A cutting fluid receiving portion that opens upward and is provided so as to surround the rotary separator at a position below the cutting fluid discharge portion;
A cover that covers the upper space of the cutting fluid receiver and the rotary separator;
A cutting fluid outflow portion that allows the cutting fluid to flow out of the cutting fluid receiving portion;
The cutting fluid / chip separating apparatus according to item (21).
The cutting fluid receiver may be provided horizontally. However, it is desirable to be inclined with respect to the horizontal plane, and it is desirable that the cutting fluid outflow portion is provided at the lowest portion of the inclined cutting fluid receiving portion.
Even if the cutting fluid flows upward from the cutting fluid discharge portion, it falls on the cover and is received by the cutting fluid receiving portion, so that the scattering of the cutting fluid is prevented and reliably received by the cutting fluid receiving portion. .
[0018]
(23) The cutting fluid / chip separating apparatus according to any one of (1) to (22), including a charging guide that guides the cutting fluid adhering chips charged from above into the rotating separation body.
[0019]
(24) A chip storage container that is provided opposite to the downward opening of the rotating separator and that stores the chips from which the cutting fluid has been separated and removed, (1) to (23) Cutting fluid / chip separation equipment.
The chip container may be detachably provided on the main body of the cutting fluid / chip separating apparatus, may be fixedly provided, or may be provided movably. When the chip container is movably provided, for example, the chip container may be constituted by a cart provided with wheels, or may be constituted by a chip conveying device such as a conveyor connected to a chip processing plant.
According to the cutting fluid / chip separating apparatus described in this section, the cutting fluid is separated and removed, and the chips dropped from the rotating separator can be collected and processed easily.
[0020]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
In FIG. 1, reference numeral 10 denotes a frame, which constitutes the main body of the present cutting fluid / chip separating apparatus. The frame 10 supports a rotation separation cylinder 12 as a rotation separator, a receiving plate 14 as a receiving member, a rotation drive device 16 that rotates the rotation separation cylinder 12 and the receiving plate 14, and the like.
[0021]
The rotation drive device 16 uses the electric motor 18 as a rotation drive source. The electric motor 18 is a motor having a brake function in the present embodiment, and the rotation driving device 16 includes a brake that stops the rotation separation cylinder 12 from rotating. The brake is, for example, an electric brake or a mechanical brake, and the rotation separation cylinder 12 is forcibly stopped by stopping the rotation of the electric motor 18. The electric brake is, for example, the above-described power generation braking device or a reverse phase braking device, and the mechanical brake is configured to include, for example, a rotor of the electric motor 18 or a restraining member that restrains the output shaft.
[0022]
The electric motor 18 is held downward by the frame 10, and its output shaft 20 is supported by the frame 10 via a bearing 22 so as to be rotatable around a vertical axis. The rotation of the output shaft 20 is transmitted to the rotation shaft 28 via the joint member 26. The rotating shaft 28 is concentrically connected to the output shaft 20 via a joint member 26 at the upper end portion thereof, and is rotatably supported by the frame 10 via a bearing 30 at the lower end portion. The electric motor 18 is provided concentrically with the rotary shaft 28, and the rotary shaft 28 is supported by the frame 10 so that the upper and lower ends of the rotary shaft 28 are rotatable by the frame 10. Rotated around. The rotating shaft 28 is a kind of rotating body or rotating member, constitutes a rotation transmission device, and constitutes the rotation driving device 16 together with the electric motor 18. The bearing 30 is covered with a cover 32 that is fixed to the rotary shaft 28. The upper surface 34 of the cover 32 is a tapered surface that is inclined downward as it moves away from the rotating shaft 28, and is a tapered cylindrical surface having a larger diameter as it is lower.
[0023]
A holding frame 36 as a rotary separator holding member is fixed to the lower end portion of the rotary shaft 28. The holding frame 36 has a boss portion 38 concentrically fixed to the rotation shaft 28 and a plurality of arms 40 extending radially outward from the boss portion 38, and cannot be rotated relative to the rotation shaft 28. To be rotated integrally with the rotary shaft 28. Each of the plurality of arms 40 has an L-shape and extends radially outward from the boss portion 38, and then extends upward in parallel with the axis of the rotary shaft 28. A holding portion 42 extending in the direction is provided. The plurality of arms 40 are provided at equiangular intervals, and the inner surface (surface on the rotating shaft 28 side) 44 of each holding portion 42 is a tapered surface having a circular cross-sectional shape centering on the axis of the rotating shaft 28. Thus, the upper part is configured to form part of a tapered surface whose diameter increases linearly.
[0024]
The rotary separation cylinder 12 is detachably fixed in the vertical direction inside each holding portion 42 of the plurality of arms 40. In the present embodiment, the rotary separation cylinder 12 is made of metal, for example, stainless steel, and includes an upward opening 46 that opens upward and a downward opening 48 that opens downward. Further, the inner side surface of the rotary separation cylinder 12 has a tapered inner peripheral surface 50 which is a tapered surface having a circular cross-sectional shape and linearly increases as the inner diameter goes upward. The outer surface of the rotary separation cylinder 12 is also a tapered outer peripheral surface 52 having the same inclination.
[0025]
The inclination of the taper inner peripheral surface 50 and the taper outer peripheral surface 52 is set to the same magnitude as the inclination of the inner side surface 44 of the holding portion 42 of the arm 40, and the rotary separation cylinder 12 has It is fitted concentrically inside, and is detachably fixed to the plurality of arms 40 by appropriate fixing means such as a plurality of bolts (not shown). The holding frame 36 is fixed concentrically to the rotating shaft 28, and the rotary separation cylinder 12 held concentrically by the holding frame 36 is provided concentrically with the rotating shaft 28 and rotatable about the vertical axis of the rotating shaft 28. And rotated integrally with the rotary shaft 28. The rotary separation cylinder 12 is provided in a portion between the portions of the rotary shaft 28 supported by the bearings 22 and 30, and the rotary shaft 28 passes through the rotary separation cylinder 12.
[0026]
The inclination angle of the taper inner peripheral surface 50 is preferably 2 degrees or more, more preferably 3 degrees or more, further preferably 5 degrees or more, and preferably 30 degrees or less, 15 degrees. It is more preferable that the temperature is 10 degrees or less. As will be described later, the inclination angle of the taper inner peripheral surface 50 is determined by the inclination of the taper inner peripheral surface 50 and the action of centrifugal force when the rotary separation cylinder 12 is rotated to separate the cutting fluid and chips. Although the cutting fluid flows upward along the taper inner peripheral surface 50, the chip needs to be set to a size that is maintained in the state held by the taper inner peripheral surface 50 by centrifugal force. An appropriate inclination angle is set according to the shape and size of the powder and the nature or type of the cutting fluid (for example, whether it is cutting oil or cutting water). This cutting fluid / chip separation device is mainly used in the processing of chips, which are cutting waste generated by gear cutting, provided in devices for processing spiral bevel gears such as spiral bevel gears and hypoid gears. In this embodiment, the chip has a shape of a piece cut relatively short, and the inclination angle of the taper inner peripheral surface 50 is 7 degrees in this embodiment.
[0027]
The upward opening 46 is covered with a lid 56 as a cutting fluid discharge closing member. In this embodiment, the lid body 56 is a thin plate made of metal, for example, stainless steel, and is provided with an inlet 58 for feeding cutting fluid adhering chips at the center thereof. A plurality of openings 60 are provided through the lid body 56 in the thickness direction. These openings 60 are sized to permit the passage of the cutting fluid but prevent the passage of chips, and in this embodiment, the lid 56 constitutes a cutting fluid discharge portion.
[0028]
Below the downward opening 48 of the rotary separation cylinder 12, a chip storage cart 66 as a chip storage container is arranged facing the downward opening 48, and stores the chips from which the cutting fluid has been separated and removed. To do. The chip storage cart 66 is movable, and the operator can move the chip storage cart 66 and easily transport the chips to the treatment plant.
[0029]
In the present embodiment, the receiving plate 14 has a disk shape, is concentric with the rotating shaft 28 at a position below the rotating shaft 28 and slightly above the downward opening 48 in the rotating separation cylinder 12. In addition, it is provided so as not to be relatively rotatable, and is rotated integrally with the rotary shaft 28 and the rotary separation cylinder 12. The receiving plate 14 is also concentric with the rotary separation cylinder 12, and the upper surface thereof forms a circular plane, and constitutes an upward receiving surface 70, which is concentric with the rotary separation cylinder 12 and the rotary shaft 28 and has a downward opening. It is located above 48. The diameter of the receiving plate 14 or the receiving surface 70, and the dimension in the direction perpendicular to the vertical axis of the rotating shaft 28 that is the rotating axis of the rotating separation cylinder 12 is the same as the receiving surface 70 in the axial direction of the tapered inner peripheral surface 50. An annular gap 72 through which chips can pass is left between the receiving surface 70 and the taper inner peripheral surface 50.
[0030]
In the present embodiment, the portion of the rotating shaft 28 that holds the receiving plate 14 constitutes a receiving member holding member, and the receiving member holding member is connected to the rotating shaft 28 so as not to rotate relative to the rotating shaft 28. A holding frame 36 as a holding member is held to hold the rotary separation cylinder 12. The rotary separator holding member is connected to the rotary shaft 28 through the receiving member holding member so as not to be relatively rotatable, and the rotary shaft 28 transmits the rotation of the electric motor 18 to the receiving member holding member. Only the portion of the rotating shaft 28 provided with the receiving plate 14 constitutes a receiving member holding member, the holding frame 36 is directly connected to the rotating shaft 28, and the rotating shaft 28 is respectively connected to the receiving member holding member and the rotating separator holding member. It can also be considered that 28 rotations are transmitted. In any case, in the present embodiment, all of the rotary drive device 16 is common to the rotary separation cylinder 12 and the receiving plate 14.
[0031]
A plurality of, for example, three scrapers 80 serving as a chip removing member are accommodated in the rotary separation cylinder 12. In the present embodiment, the constituent elements other than the scraper 80 and the rotary separation cylinder 12 and the lid 56 of the present cutting fluid / chip separating apparatus are made of metal, for example, steel for ordinary structures. Each of the three scrapers 80 has a plate shape and is held by a sleeve 84 which is a kind of a rotating member as a chip removing member holding member. The sleeve 84 is supported by the rotary shaft 28 via a bearing 82 so as to be rotatable about a vertical axis, and the plurality of scrapers 80 are fixed to the sleeve 84 and held at equal angular intervals in the main body portion or the held portion 85. The sleeve 84 is provided so as to be rotatable around the axis of the rotary shaft 28. The plurality of scrapers 80 are held axially symmetrical. In the present embodiment, these scrapers 80 are concentrically arranged in the rotary separation cylinder 12 and can rotate relative to the rotary separation cylinder 12 and the rotary shaft 28, and can rotate around the rotation axis of the rotary separation cylinder 12. Is housed in.
[0032]
Each of the three scrapers 80 is provided at a protruding end portion extending radially outward from the sleeve 84 of the held portion 85 and has an inclination corresponding to the inclination of the tapered inner peripheral surface 50 of the rotary separation cylinder 12. A first scraping portion 86 as a first removing portion, and a second scraping portion as a second removing portion extending in a direction having a component perpendicular to the rotation axis of the rotary separation cylinder 12 along the lid body 56. Part 88.
[0033]
The first scraping portion 86 is located in a vertical plane including the rotation axis of the rotary separation cylinder 12, and has an axial component and a radial component of the rotary separation cylinder 12, and no circumferential component. The tapered inner peripheral surface 50 is provided along the tapered inner peripheral surface 50 so as to extend in a direction along the conical generatrix with the outer peripheral surface being a part of the outer peripheral surface. The gap 90 (see FIG. 2) allowing the relative rotation with respect to the cylinder 12 is left.
[0034]
The second scraping portion 88 extends from the upper end portion of the first scraping portion 86 along the lid body 56 so as to correspond to the portion where the opening 60 of the lid body 56 is provided. The component extends in a direction perpendicular to the rotational axis of the cylinder 12 and has a radial component. The second scraping portion 88 is provided with a gap 92 that allows rotation between the lid body 56 and the second scraping portion 88. As will be described later, the gaps 90 and 92 are sized so that chips held on the taper inner peripheral surface 50 push the scraper 80 to rotate when the rotary separation cylinder 12 rotates, and the rotation separation cylinder 12 and the scraper 80 are rotated. In order to scrape off the chips adhering to the taper inner peripheral surface 50 and the lid 56 during relative rotation, the scraper 80 is preferably 4 mm or less, more preferably 2 mm or less, and 1 mm or less. It is further desirable.
[0035]
A cutting fluid container 100 as a cutting fluid containing member is disposed outside the rotating separation cylinder 12 and outside the arm 40 of the holding frame 36. The cutting fluid container 100 is supported by the frame 10, opens upward, and has a container-like cutting fluid receiving portion 102 provided around the rotary separation cylinder 12 at a position below the lid body 56, A cover 104 that covers the space above the cutting fluid receiver 102 and the rotary separation cylinder 12 and a cutting fluid outlet 106 as a cutting fluid outlet that allows the cutting fluid to flow out of the cutting fluid receiver 102 are provided.
[0036]
The cutting fluid receiving portion 102 is inclined with respect to a horizontal plane, and the lowest portion of the inclined cutting fluid receiving portion 102 is protruded laterally at the same inclination as the inclination of the cutting fluid receiving portion 102, and cutting is performed. A liquid outlet 106 is formed. The cutting fluid outlet 106 can be connected to a cutting fluid collector by a hose (not shown), for example, so that the cutting fluid can be stored and reused. It is also possible to return to the cutting fluid supply part provided in the machine main body of the cutting processing apparatus provided with and to be reused.
[0037]
In the vicinity of the rotary separation cylinder 12, a chip conveyor 120 is disposed as a conveying device for conveying the cutting fluid adhering chips. The chip conveyor 120 is provided so as to throw cutting fluid adhering chips into the rotary separation cylinder 12 from the upward opening 46 of the rotary separation cylinder 12, and a feeding portion 122 is provided at the tip of the chip conveyor 120. It extends toward the charging guide 124 provided at the charging port 58.
[0038]
The charging guide 124 guides the cutting fluid adhering chips supplied from above the rotary separation cylinder 12 into the rotary separation cylinder 12. The charging guide 124 has a cylindrical shape, in the present embodiment, a circular cylindrical shape in cross section, and is concentrically and rotatably fitted and held by the frame 10 with the rotary separation cylinder 12. . A taper-shaped guide portion 132 whose diameter increases linearly toward the upper portion is provided at the upper end portion of the insertion guide 124, and the straight lower end portion of the insertion guide 124 is provided at the central portion of the lid body 56. The guide portion 132 is provided in a state of projecting upward from the lid 56 while being positioned in the rotary separation cylinder 12 through the insertion port 58. The straight portion of the charging guide 124 is fitted to the charging port 58 leaving a clearance allowing the rotation separating cylinder 12 to rotate. The feeding section 122 of the chip conveyor 120 is provided so as to feed cutting fluid adhering chips to the guide section 132, and the guide section 132 rises in parallel with the axis of the feeding guide 124 from the upper end edge thereof. A shielding portion 134 is provided along the upper edge of the guide portion 132 to prevent the cutting fluid adhering chips thrown from the throwing portion 122 from being scattered and thrown into the guide portion 132. The charging guide 124 is rotated with respect to the frame 10 according to the arrangement of the chip conveyor 120, and the shielding part 134 is positioned at a position that well prevents scattering of cutting fluid adhering chips injected from the charging part 122. Yes.
[0039]
This cutting fluid / chip separating apparatus is controlled by a control device 150. The control device 150 is mainly composed of a computer, and controls the electric motor 18, the brake of the electric motor 18, the chip conveyor 120, and the like through a drive circuit (not shown). An input device 152 is connected to the control device 150, and an operator sets the operating conditions of the cutting fluid / chip separating device. The cutting fluid / chip separating apparatus may be controlled by a dedicated electronic circuit including a timer.
[0040]
Next, the operation will be described.
This cutting fluid / chip separating apparatus is provided, for example, in a spiral bevel gear processing apparatus that processes a spiral bevel gear, and is used to process cutting fluid adhering chips. This cutting fluid / chip separating apparatus is easy to install because the components such as the rotary separation cylinder 12 are held by the frame 10, and the electric motor 18, the rotary shaft 28, the rotary separation cylinder 12, and the receiving plate 14. Further, the scraper 80 is provided concentrically with each other and is compact, and can be easily installed in a processing apparatus.
[0041]
At the time of gear cutting, cutting fluid such as cutting oil, soaping fluid, and aqueous solution is applied to the processing tool and gear material, and cutting fluid adhering chips generated by the processing are carried out of the processing region by the chip conveyor 120 and supplied to the input unit 122. , Is introduced into the rotary separation cylinder 12 from the insertion guide 124, received by the receiving plate 14, and placed on the receiving surface 70. When the cutting fluid adhering chips are introduced, the electric motor 18 is rotated, and the rotating shaft 28, the receiving plate 14 and the rotating separation cylinder 12 are rotated at a preset speed. Therefore, the cutting fluid adhering chips received in the rotating separation cylinder 12 and received from the receiving surface 70 are blown to the outer peripheral side by centrifugal force and impact force when hitting the rotating receiving surface 70, and are separated by rotation. It is received by the taper inner peripheral surface 50 of the cylinder 12. The receiving surface 70 is provided at a position above the downward opening 48 of the rotary separation cylinder 12, and the chips blown off by centrifugal force or the like can be received without detaching from the tapered inner peripheral surface 50.
[0042]
The cutting fluid adhering chips are kept in a state of being held on the taper inner peripheral surface 50 by centrifugal force and frictional force between the taper inner peripheral surface 50 and the cutting fluid is inclined and centrifuged by the taper inner peripheral surface 50. By the action of the force, the taper inner circumferential surface 50 is raised and the cutting fluid and the chips are separated. Then, the cutting fluid is discharged out of the rotary separation cylinder 12 through the opening 60 of the lid 56, and is received by the cutting fluid receiving portion 102 of the cutting fluid container 100, and to the cutting fluid outlet 106 by the inclination thereof. Flow, collected in the cutting fluid recovery device, or returned to the cutting fluid supply section. The cutting fluid jumping upward from the opening 60 falls on the cover 104 and is received by the cutting fluid receiver 102. This cutting fluid / chip separating device is provided together with the gear machining device. In parallel with the gear machining, the cutting fluid adhering chips can be conveyed to the separating device to separate the cutting fluid. Can be recovered.
[0043]
When chips are put into the rotary separation cylinder 12 and are blown to the outer peripheral side by centrifugal force or the like, even if the chips rise, they cannot pass through the opening 60 of the lid 56 and the cutting fluid. Only flows out of the rotary separation cylinder 12, and the chips are caught on and adhered to the lid 56 and are prevented from popping out and remain in the rotary separation cylinder 12. The lid 56 is put into the rotary separation cylinder 12 and received by the receiving surface 70, and among the cutting fluid adhering chips that are blown away by centrifugal force or the like, relatively large chips hit the tapered inner peripheral surface 50. It is provided mainly for the purpose of preventing it from jumping out of the rotary separation cylinder 12 even if it sometimes rises or rolls and moves upward.
[0044]
When the rotary separating cylinder 12 is rotated as described above, the scraper 80 is stopped at the beginning of the rotation. As the rotary separation cylinder 12 rotates, as shown in FIG. 2, if the chips 160 are held and collected on the tapered inner peripheral surface 50 of the rotary separation cylinder 12, they engage with the scraper 80 and are Driven to rotate the scraper 80 together with the rotary separation cylinder 12.
[0045]
The cutting fluid adhering chips by the chip conveyor 120 are continuously fed into the rotary separation cylinder 12, and the cutting fluid and the chips are separated. Then, when a preset condition is satisfied, for example, when the processing man-hour of the spiral bevel gear reaches the set number, when the amount of cutting fluid adhering chips reaches the set amount, it is continuously performed When the separation operation time reaches the set time, the rotation of the electric motor 18 is stopped by the brake, the rotation of the rotating shaft 28 is stopped, and the rotation separation cylinder 12 is stopped. This stop condition is set in advance by the operator using the input device 152, and when the start of separation work is instructed, the control device 150 controls the electric motor 18, the chip conveyor 120, etc. according to the above setting, Cutting fluid adhering chips are transported, loaded, and separated. If the rotary separation cylinder 12 is stopped and the centrifugal force does not act, most of the chips held on the taper inner peripheral surface 50 fall away from the taper inner peripheral surface 50 due to gravity, and the taper inner peripheral surface 50. And the receiving plate 14 through the downward opening 48 and received by the chip storage cart 66 and stored. The upper surface 34 of the cover 32 that covers the bearing 30 is a tapered surface that is inclined downward as it moves away from the rotation shaft 28, and has a tapered cylindrical surface that has a larger diameter toward the lower portion. Even if it is placed on the upper surface 34, it is dropped by the inclination. In addition, when rotation of the rotary separation cylinder 12 is stopped, the introduction of cutting fluid adhering chips by the chip conveyor 120 is also stopped. When the cutting fluid / chip separating device is controlled by a dedicated electronic circuit including a timer, the rotary separation cylinder 12 is rotated for a time set by the timer, and the rotation of the electric motor 18 is braked when the set time elapses. The rotation separation cylinder 12 is stopped from rotating. In this case, the cutting fluid adhering chips are transported and charged by the chip conveyor 120 based on the time setting by the timer, and the transport and charging are stopped when the rotary separation cylinder 12 is stopped.
[0046]
Further, since the scraper 80 is rotatably held by the rotary shaft 28 with respect to the rotary shaft 28, the scraper 80 continues to rotate due to inertia even when the rotary shaft 28 stops rotating, and relatively with respect to the rotary separation cylinder 12. It rotates, and the 1st scraping part 86 scrapes off the chips adhering to the taper inner peripheral surface 50. The second scraping portion 88 rotates relative to the lid body 56 and scrapes off any chips adhering to the lid body 56. In this embodiment, the rotary separation cylinder 12 and the lid 56 are made of stainless steel, have a smooth surface and a small coefficient of friction, and the chips 160 are easily scraped off. The scraped chips 160 fall from the gap 72 between the tapered inner peripheral surface 50 and the receiving plate 14 through the downward opening 48, and are received and stored by the chip storage cart 66. In the present embodiment, the brake 80 constitutes a relative rotation device, and constitutes a chip removing device together with the plurality of scrapers 80. Although the scraper 80 and the rotary separation cylinder 12 are made of metal, they are not brought into contact with the first and second scraping portions 86, 88, the taper inner peripheral surface 50 and the lid 56, and are damaged by contact with each other. The chip 160 is scraped off.
It is not indispensable that the rotary separation cylinder 12 and the lid 56 are entirely made of stainless steel, and at least the surface in contact with the chips 160 may be made of stainless steel.
[0047]
If the rotation of the electric motor 18 is stopped by the brake and the rotary separation cylinder 12 is suddenly stopped, the deceleration at the time of stoppage is large, and even within the taper due to the impact acting on the chips 160 and the rotary separation cylinder 12 at the time of stop Chips held on the peripheral surface 50 fall. Further, even if chips are caught in the opening 60 of the lid 56, the chips 56 come off and fall and are stored in the chip storage cart 66.
[0048]
If the rotary separation cylinder 12 is stopped in this way and the chips 160 held on the taper inner peripheral surface 50 are removed, the cutting fluid adhering chips are conveyed to the rotary separation cylinder 12 by the chip conveyor 120. Input and separation is resumed. These conveyances and the like are performed when a preset work resumption condition is satisfied, for example, when a set time elapses after the rotation separating cylinder 12 is stopped or when the processing man-hour of the spiral bevel gear after the stop reaches a set number. Resumed. At the time of restarting, when the cutting fluid adhering chips are introduced, the rotating separation cylinder 12 and the receiving plate 14 are rotated at a preset speed. Note that the operator looks at the chip storage cart 66 and, if the chip 160 is collected, moves the chip storage cart 66 and transports the collected chip 160 to the treatment plant. During this time, another empty chip storage carriage 66 may be provided facing the downward opening 48 of the rotary separation cylinder 12 to accommodate the chip 160, or during the separation operation of the separation device (the rotation of the rotary separation cylinder 12). The chips stored in the middle) may be processed and returned before the rotation separation cylinder 12 is stopped. In addition, a chip storage detection device is provided in the chip storage cart 66, and if the chip is stored in a set amount or more, the notification device notifies the operator and processes the chips based on the notification. Good.
[0049]
The rotation drive device 16 and the chip conveyor 120 of the control device 150 are controlled in accordance with preset conditions, and the portion where the operation is started, stopped and restarted constitutes a separation control unit, and the rotary separation cylinder 12 and the receiving plate 14 rotate. The part that controls rotation, chip conveyance, and feeding so that the cutting agent adhering chips are thrown into the rotary separation cylinder 12 in the state where the cutting agent is placed constitutes the rotation control unit at the time of chip feeding, and constitutes the separation control unit ing.
[0050]
When the cutting fluid / chip separation device is controlled by a dedicated electronic circuit including a timer, the stop time of the rotary separation cylinder 12 is set by the timer together with the rotation time of the rotary separation cylinder 12, and the set stop time has elapsed. Then, the rotation of the rotary separation cylinder 12 may be automatically restarted, or may be restarted according to an operator's instruction. In the former case, the operation of the timer automatically and repeatedly performs the separation and stop of the cutting fluid and chips for a set time, and the operator instructs the start and end of the series of separation and stop. The rotation time or separation time and stop time may be set by the operator or may be set in advance. In any case, the control is performed so that the separation is started and restarted so that the cutting agent adhering chips are put into the rotary separation cylinder 12 while the rotary separation cylinder 12 and the receiving plate 14 are rotating. Is called.
[0051]
If the chip 160 is attached to the taper inner peripheral surface 50 or the lid 56 by the cutting fluid at the beginning of the rotation of the rotary separation cylinder 12, the scraper 80 can scrape the chip even at the beginning of the rotation. Do it. If the amount of chips 160 adhering to the taper inner peripheral surface 50 is not so large as to rotate the scraper 80 together with the rotary separation cylinder 12, only the rotary separation cylinder 12 is rotated by the activation of the electric motor 18, and the scraper 80 is It is rotated relative to the rotating separation cylinder 12 and scrapes off the chips 160.
[0052]
The cutting fluid / chip separation device is operated continuously in parallel with the machining of the gear, and the rotary separation cylinder 12 is continuously rotated to separate the cutting fluid and the chips. Each time a set number of gears are machined, the cutting fluid / chip separating device may be operated so that the cutting fluid adhering chips are put into the rotary separation cylinder 12 and separated.
[0053]
In the chip removal member, the first removal portion may be provided so as to be movable in at least one of the circumferential direction and the radial direction of the rotating separator. For example, with respect to the held part or the main body part of the chip removing member that is concentrically and relatively rotatably held with respect to the rotating separator, the first removing unit is parallel to the rotation axis of the chip removing member. It is provided so as to be rotatable in both forward and reverse directions around the axis. The first removing unit is normally regulated by a regulating member, is located in a direction perpendicular to the rotation axis of the chip removing member, and is located at an original position located within a plane including the relative rotation axis of the chip removing member. It is done. The restricting member is constituted by, for example, a leaf spring that is a kind of spring member. The leaf springs are provided across the held portion and the first removal portion, and are respectively provided on both sides of the rotation direction of the first removal portion, and the rotation direction (relative rotation direction with respect to the rotating separator) is provided on the first removal portion. ), When the force exceeds a certain level, the first removal portion is allowed to rotate by elastic deformation, and when the force decreases, the first removal portion is urged to return to the original position.
[0054]
The chip removing member is disposed with the first removal portion leaving a slight gap allowing relative rotation between the inner surface of the rotating separator and is rotated relative to the rotating separator to remove the chips. The force acting on the first removal part when scraping off is usually smaller than the force that the leaf spring positions the first removal part in the original position, and the first removal part is located in the original position and scrapes off the chips. . On the other hand, for example, if the chips are caught in the gap between the first removal portion and the inner surface and a force of a certain level or more is applied to the first removal portion, the first removal portion It is turned against the urging force and gets over the chips. In this way, depending on the shape, size, etc. of the chip, the chip is caught in the gap between the chip removing member and the inner surface of the rotating separator and damaged, or the chip removing member cannot be relatively rotated. Occurrence of such a situation is avoided.
[0055]
Moreover, you may provide a 1st removal part so that a movement to the radial direction of a rotation separation body is possible with respect to a to-be-held part. In this case, for example, a spring member as an elastic member, which is a kind of urging means, is provided between the first removal portion and the held portion, and the first removal portion is separated from the held portion and is rotationally separated. Energize in a direction approaching the inner surface of the body. The movement limit of the first removal unit by this urging is regulated by, for example, providing a movement regulating device including a long hole and a pin between the first removal unit and the held portion, and the first removal unit is always moved forward. The first removal portion is located at the position or the original position and the chip removal position, and is opposed to the inner side surface of the rotary separator with a gap allowing relative rotation on the inner surface of the rotary separator.
[0056]
Then, when the chip removing member and the rotary separator are rotated relative to each other, the chips held on the inner surface are caught in the gap between the first removing portion and the inner surface, and are constant in the first removing portion. If the above force is applied, the first removal portion is retracted in the direction away from the inner surface against the biasing force of the spring, and gets over the chips. Thereafter, the first removal portion is returned to the chip removal position by the bias of the spring. As described above, the chip removal member is configured to include the movable removal unit and the movable removal unit position regulation unit, so that the chip removal is performed more favorably.
[0057]
The second removal part is also provided so as to be movable relative to the held part or the main body part, and there is a possibility that the cutting member will be damaged due to the biting due to the shape and size of the chips. Even in cases, it can be avoided. For example, the second removing portion is provided so as to be movable in a direction parallel to the relative rotation axis of the chip removing member with respect to the held portion, and a regulating device including a biasing means is provided, and the cutting fluid discharge blockage is always provided. When the chip is positioned between the second removal part and the cutting fluid discharge blocking member and a force exceeding a certain level is applied, the chip is positioned at the chip removal position to remove the chips adhering to the member. The second removal portion is retracted in a direction parallel to the relative rotation axis of the chip removal member against the biasing force of the biasing means so as to get over the chip. Alternatively, the second removal portion is provided so as to be rotatable in both forward and reverse directions about an axis orthogonal to the relative rotation axis of the chip removal member with respect to the held portion, and by a regulating device including a biasing means, It is positioned at the removal position (the position where the second removal portion is located in the plane including the relative rotation axis of the chip removing member), and the chip is caught between the cutting fluid discharge closing member and the force exceeds a certain level. May be turned against the urging force of the urging means to get over the chips.
[0058]
In the above embodiment, the relative rotation device that relatively rotates the chip removing member and the rotary separator is configured by a brake that stops the rotation of the rotary separator, but the relative rotary device has a dedicated rotational drive source. The chip removal member rotation driving device for forcibly rotating the chip removal member may be used. The embodiment will be described with reference to FIG. In addition, the same code | symbol is attached | subjected to the component which performs the same effect | action as the component of the cutting fluid / chip separation apparatus of the said embodiment, description is abbreviate | omitted.
[0059]
The chip removing device of the present cutting fluid / chip separating apparatus includes a plurality of scrapers (not shown) as a chip removing member, as well as a chip removing member rotating drive, like the chip removing device of the above-described embodiment. A device 170 is provided. In the present embodiment, like the scraper 80, these scrapers are held at equal angular intervals by a sleeve 172 that is rotatably supported by a rotary shaft 28 of the rotary drive device 16 via a bearing 82. The sleeve 172 extends upward from an input portion of a chip conveyor (not shown), and the chip removing member rotation driving device 170 is connected to an electric motor 178 as a rotation driving source and an output shaft 180 of the electric motor 178. A pulley 182 as a rotation transmission member provided and driven by an electric motor 178, a pulley 184 as a rotation transmission member provided on the upper portion of the sleeve 172 so as not to be relatively rotatable, and an endless wound around these pulleys 182 and 184 A rotation transmission device 188 including a belt 186 as a winding body is provided.
[0060]
A one-way clutch 190 is provided between the output shaft 180 and the pulley 182. The one-way clutch 190 is a kind of rotation transmission permitting / shut-off device. When the electric motor 178 is stopped, the pulley 182 is allowed to rotate with respect to the output shaft 180, and when the electric motor 178 is rotated, the output shaft 180 is rotated. Is transmitted to the pulley 182, and the scraper is rotated by the chip removing member rotation driving device 170.
[0061]
In the cutting fluid / chip separating apparatus according to the present embodiment, when the rotating separation cylinder is rotated, the scraper is moved together with the rotating separation cylinder by the chips held on the inner peripheral surface of the rotating separation cylinder, similarly to the scraper 80. Rotated. At this time, the electric motor 178 is stopped, but the pulley 182 is rotated by the one-way clutch, the scraper is allowed to rotate, and is rotated by the rotating separation cylinder. Further, the rotation of the scraper is not transmitted to the electric motor 178 by the action of the one-way clutch 190, and the electric motor 178 does not rotate. In the present cutting fluid / chip separating apparatus, the rotation of the rotary separation cylinder can be stopped naturally by stopping the supply of electric current to the electric motor without stopping by the brake. This is because the electric motor 178 is started after the rotation separation cylinder is stopped, the sleeve 172 is rotated, the scraper is rotated with respect to the rotation separation cylinder, and the chips held on the taper inner peripheral surface can be removed. . Moreover, regardless of the rotation of the rotary separation cylinder, the scraper can be rotated at any time to remove chips. It is also possible to rotate the scraper during rotation of the rotating separation cylinder and rotate the scraper relative to the rotating separation cylinder to remove chips. The rotation separation cylinder and the scraper are rotated relative to each other by rotating at a rotation speed different from the rotation speed of the rotation separation cylinder. Furthermore, it is possible to control the rotational speed of the scraper.
[0062]
In place of the one-way clutch, a clutch that is electrically or mechanically connected or disconnected is provided, and the rotation of the rotation drive source of the chip removal member rotation drive device is transmitted to the chip removal member and the state in which the rotation is not transmitted May be obtained. It is desirable to provide a one-way clutch, etc., so that the electric motor does not rotate when the scraper rotates together with the rotating separator. May be.
[0063]
In the cutting fluid / chip separating apparatus of each of the above embodiments, the scraper 80 is provided, and the chips held on the taper inner peripheral surface 50 of the rotary separation cylinder 12 are scraped off. Providing is not essential and may be omitted. Further, the rotary separator holding member may hold the rotary separator from the inside. These embodiments will be described with reference to FIG. In addition, the same code | symbol is attached | subjected to the component which performs the same effect | action as the component of the cutting fluid / chip separation apparatus of the said embodiment, description is abbreviate | omitted.
[0064]
In the cutting fluid / chip separating apparatus according to the present embodiment, a receiver 200 as a receiving member is fixed to a lower portion of the rotating shaft 28 constituting the rotation driving device 16. The receptacle 200 is formed in a container shape with an outer surface having a conical shape, and a receiving surface 202 which is an inner peripheral surface thereof is provided facing upward, and the receiving surface 202 has a tapered cylindrical surface whose diameter increases linearly toward the top. It is said that. One end portions of a plurality of arms 206 as rotating separator holding members are fixed to the receiver 200. A rotation separation cylinder 208 as a rotation separation body is fixed to the other end portion of the arm 206 by appropriate fixing means such as welding. The arm 206 holds the rotary separation cylinder 208 from the inside and is held by the receiver 200.
[0065]
The rotary separation cylinder 208 has a cylindrical shape similar to the rotary separation cylinder 12 and includes an upward opening 210, a downward opening 212, and a tapered inner peripheral surface 214 whose diameter increases linearly toward the upper part. It is provided concentrically with the shaft 28, and the upward opening 210 is covered with a lid 56. The rotary separation cylinder 208 has a downward opening 212 extending downward from the receiver 200, the receiver 200 is positioned in the rotary separation cylinder 208, and the receiving surface 202 is positioned slightly above the downward opening 212. The diameter of the opening of the receiver 200, and the maximum diameter of the receiving surface 202 is made smaller than the diameter of the tapered inner peripheral surface 214 corresponding to the opening of the receiver 200. An annular gap 216 is provided in the radial direction between the rotating separation cylinder 208 and the taper inner peripheral surface 214. Further, the straight portion 218 of the charging guide 124 is elongated and is brought close to the opening of the receiver 200, so that cutting fluid adhering chips are charged at a position close to the receiver 200 and are reliably received by the receiver 200.
[0066]
In the cutting fluid / chip separating apparatus of the present embodiment, the rotary separation cylinder is conveyed by a chip conveyor (a part of the charging unit 122 is shown in FIG. 4) and passes from the charging unit 122 through the charging guide 124. The cutting fluid adhering chips thrown into 208 are received by the receiver 200. When the cutting fluid adhering chips are introduced, the rotary shaft 28 is rotated, and the receiver 200 and the rotating separation cylinder 208 are rotated. The cutting liquid adhering chips are received by the receiver 200 and are rotated and separated by centrifugal force. It is blown to the 208 side and received by the taper inner peripheral surface 214. Then, the cutting fluid is separated from the chips by the centrifugal force and the action of the inclination of the taper inner peripheral surface 214, is caused to flow upward, is discharged through the opening 60 of the lid 56, and is received by the cutting fluid container 100. It is done.
[0067]
If the rotation of the electric motor 18 is stopped by the brake and the rotation shaft 28 is stopped, the receiver 200 and the rotation separation cylinder 208 are also stopped. The chips held on the taper inner peripheral surface 214 no longer act on the centrifugal force and are dropped by gravity, and are separated from the taper inner peripheral surface 214 by an impact acting on the chips and the rotary separation cylinder 208 when stopped. Then, it falls through the gap 216 between the receiving member 200 and the inner peripheral surface 214 and is accommodated in a chip accommodating cart (not shown).
[0068]
It is not essential that the motor be a motor having a brake function. This is because the chips held by the stop of the rotating separator are dropped and discharged by gravity without providing the chip removing member, and if the chip removing member is rotated by a dedicated rotation driving device. This is because the chips can be removed by rotating the rotating separator at any time.
[0069]
Moreover, you may provide the rotational drive apparatus which rotates a rotation separation body and a receiving member in the position remove | deviated from those rotating shaft lines. Further, the rotary separator may be directly driven by the rotary drive device. The rotation of the rotation drive source may be directly transmitted to the rotation separator. For example, a shaft protrudes from the center of the rotating separator on the downward opening side and is rotatably supported by the frame, and is rotatably supported by a dosing guide provided concentrically with the shaft. Then, a pulley as a rotation transmission member is provided on the rotation separator, and the rotation of the electric motor as a drive source provided off the rotation separator is transmitted by a rotation transmission device including a pulley and a belt to rotate the rotation separator. Let Further, the receiving member is held by the rotating separator or the shaft, and the receiving member is rotated integrally by rotating the rotating separator. You may make it rotate to a shaft by transmitting rotation of the rotational drive source provided in the position different from a rotation separation body and a receiving member with a rotation transmission apparatus, and a rotation separation body and a receiving member. Further, the rotary separator may be rotatably supported on the frame via a bearing, and the rotary separator may be rotated by transmitting the rotation of the rotary drive source. Further, the receiving member may be directly driven by the rotation driving device.
[0070]
Further, in each of the above-described embodiments, the stopping, restarting of the cutting fluid adhering chips is automatically stopped but restarted by the operator's manual operation. You may do it.
[0071]
Also, when the rotation of the rotating separator is stopped and the chips held on the inner surface are discharged, the cutting fluid adhering chips may be conveyed by the chip conveying device and put into the rotating separator. .
[0072]
Further, the rotary separator and the receiving member may be rotated simultaneously with the introduction of the cutting fluid adhering chips into the rotary separator, or may be rotated after the injection.
[0073]
Further, in each of the above embodiments, the cutting fluid / chip separating device is provided for one spiral bevel gear processing device which is a kind of machine tool, but the gear cutting line includes a plurality of gear processing devices. May be provided. The cutting fluid / chip separating apparatus is provided at the end of the gear cutting line, for example, and transports chips generated by machining in the plurality of gear machining apparatuses to the cutting fluid / chip separating apparatus by the transport device. It is desirable that the cutting fluid / chip separating device is operated continuously to separate the cutting fluid and the chips sequentially from the cutting fluid adhering chips conveyed from a plurality of gear processing devices. The plurality of gear machining devices constituting the gear cutting line may be gear machining devices other than the spiral bevel gear machining device. Further, a cutting fluid / chip separating device may be provided in common for a plurality of types of gear processing devices having different types of processing targets.
[0074]
Further, at least the outer peripheral portion of the upward opening of the rotating separator may be covered with a net. The net has a mesh size that allows the cutting fluid to pass but prevents the passage of chips, and is made of metal, for example, stainless steel.
[0075]
Further, when the rotary separator holding member holds the rotary separator from the inside, it is not essential that the rotary separator holding member is held by the receiving member. For example, the rotary shaft may be held.For example, a rotary separator is provided with a plurality of arms extending radially from the rotary shaft to form a rotary separator holding member. It is fixed.
[0076]
Further, the cutting fluid / chip separating apparatus according to the present invention is a gear processing device other than a spiral bevel gear processing device, for example, a hobbing machine for processing a spur gear or a helical gear, or a gear processing device other than a gear processing device. You may provide in machine tools in general, for example, a milling machine, a broaching machine, etc. whose cutting fluid adhesion chips are a fracture type. If the cutting fluid adhering swarf generated by machining is a split type swarf, it can be put into the rotary separator as it is to separate the cutting fluid and the swarf, and if it is a flow type swarf, a severing device It is desirable that the cutting fluid and the chips are separated from each other after being divided by the above. For example, in the case of a lathe, a chip breaker may be provided so that chips are divided. The cutting fluid adhering chips generated by the processing may be sent to a cutting device provided separately from the processing device and divided.
[0077]
As mentioned above, although some embodiment of this invention was described in detail, these are only illustrations and this invention was described in the above-mentioned section of [the subject which invention intends to solve, a problem-solving means, and an effect]. The present invention can be implemented in various forms including various modifications and improvements based on the knowledge of those skilled in the art.
[Brief description of the drawings]
FIG. 1 is a front view (partial cross section) showing a cutting fluid / chip separating apparatus according to an embodiment of the present invention.
FIG. 2 is a plan view showing a state in which chips are held on a tapered inner peripheral surface of a rotary separating cylinder in the cutting fluid / chip separating apparatus.
FIG. 3 is a front view (partial cross section) showing a cutting fluid / chip separating apparatus according to another embodiment of the present invention.
FIG. 4 is a front view (partly in section) showing a cutting fluid / chip separating apparatus according to still another embodiment of the present invention.
[Explanation of symbols]
12: rotation separation cylinder 14: receiving plate 16: rotation drive device 18: electric motor 28: rotation shaft 36: holding frame 46: upward opening 48: downward opening 50: taper inner peripheral surface 56: lid body 60: opening 66: cut Powder storage cart 70: receiving surface 72: gap 80: scraper 86: first scraping part
88: Second scraping unit 100: Cutting fluid container 102: Cutting fluid receiving unit
104: Cover 106: Cutting fluid outlet 150: Control device 170: Chip removal member rotation drive device 200: Receiver 202: Receiving surface 208: Rotating separation cylinder 210: Opening upward 212: Downward opening 214: Tapered inner peripheral surface
216: gap

Claims (7)

切削液が付着した切粉である切削液付着切粉を切削液と切粉とに分離する切削液・切粉分離装置であって、
ほぼ鉛直な軸線のまわりに回転可能に設けられ、上部ほど内のり寸法が大きい内側面と、下向きに開口する下向き開口と、前記内側面の上部に設けられ、前記切削液の通過を許容する切削液排出部とを備えた回転分離体と、
前記回転分離体内の前記下向き開口の高さ以上の位置に回転分離体と同心にかつ上向きに設けられ、回転分離体の回転軸線と直交する方向の寸法が前記内側面の対応する部分の内のり寸法より小さい受面を備え、前記内側面との間に前記切粉の通過可能な隙間を残した状態で配設されて前記切削液付着切粉を受ける受部材と、
前記回転分離体と前記受部材とを回転させる回転駆動装置と
を含むことを特徴とする切削液・切粉分離装置。A cutting fluid / chip separating device that separates cutting fluid adhering chips, which are cutting chips with cutting fluid, into cutting fluid and chips,
A cutting fluid that is provided so as to be rotatable about a substantially vertical axis and has an inner surface with a larger inner dimension toward the upper portion, a downward opening that opens downward, and a cutting fluid that is provided above the inner surface and allows the cutting fluid to pass therethrough. A rotating separator having a discharge part;
The rotary separator is provided concentrically and upwardly at a position higher than the height of the downward opening in the rotary separator, and the dimension in the direction perpendicular to the rotation axis of the rotary separator is the inner dimension of the corresponding portion of the inner surface. A receiving member that is provided with a smaller receiving surface and that receives the cutting fluid adhering chips disposed in a state in which a gap through which the chips can pass is left between the inner surface and the inner surface;
A cutting fluid / chip separating apparatus comprising: a rotary driving device that rotates the rotating separator and the receiving member. 前記回転分離体の前記内側面の横断面形状が円形である請求項１に記載の切削液・切粉分離装置。The cutting fluid / chip separating apparatus according to claim 1, wherein a cross-sectional shape of the inner surface of the rotating separator is circular. 前記回転分離体の前記内側面が、内径が上部に向かうに従って直線的に増大するテーパ面を成す請求項１または２に記載の切削液・切粉分離装置。The cutting fluid / chip separating apparatus according to claim 1, wherein the inner side surface of the rotary separator forms a tapered surface that linearly increases as the inner diameter goes upward. 前記受部材の前記受面が円形の平面を成す請求項１ないし３のいずれかに記載の切削液・切粉分離装置。The cutting fluid / chip separating apparatus according to claim 1, wherein the receiving surface of the receiving member forms a circular plane. 前記回転分離体の前記内側面に保持された切粉を除去する切粉除去装置を含み、前記回転分離体の前記内側面の横断面形状が円形であり、かつ、前記切粉除去装置が、
前記内側面に沿って前記回転分離体の軸方向の成分を有する方向に延びる第一除去部を備え、回転分離体内に、同心にかつ回転分離体に対して相対回転可能に収容された少なくとも１つの切粉除去部材と、
その切粉除去部材と前記回転分離体とを相対的に回転させる相対回転装置と
を含む請求項１ないし４のいずれかに記載の切削液・切粉分離装置。Including a chip removing device for removing chips held on the inner surface of the rotating separator, a cross-sectional shape of the inner surface of the rotating separator is circular, and the chip removing device,
A first removal portion extending in a direction having an axial component of the rotating separator along the inner side surface, and at least one accommodated in the rotating separator concentrically and relatively rotatable with respect to the rotating separator; Two chip removal members,
The cutting fluid / chip separating apparatus according to any one of claims 1 to 4, further comprising a relative rotating device that relatively rotates the chip removing member and the rotating separator. 前記回転分離体が上向きに開口する上向き開口を備えるとともに、前記切削液の通過は許容するが、前記切粉の通過は阻止する複数の開口を有して前記上向き開口の少なくとも外周部を覆う切削液排出用閉塞部材を備えてその切削液排出用閉塞部材が前記切削液排出部を構成し、かつ、前記切粉除去部材が、前記切削液排出用閉塞部材に沿って前記回転分離体の回転軸線に直角な方向の成分を有する方向に延びる第二除去部を備えた請求項５に記載の切削液・切粉分離装置。The rotary separator has an upward opening that opens upward, and has a plurality of openings that allow the cutting fluid to pass but prevent the passage of the chips, and that covers at least the outer periphery of the upward opening. The cutting fluid discharge blocking member includes the cutting fluid discharge blocking portion, and the chip removal member rotates the rotary separator along the cutting fluid discharge blocking member. The cutting fluid / chip separating apparatus according to claim 5, further comprising a second removal portion extending in a direction having a component in a direction perpendicular to the axis. 前記回転駆動装置が前記回転分離体の回転を停止させるブレーキを含み、そのブレーキが前記相対回転装置を構成している請求項５または６に記載の切削液・切粉分離装置。The cutting fluid / chip separating apparatus according to claim 5 or 6, wherein the rotation driving device includes a brake that stops the rotation of the rotating separator, and the brake constitutes the relative rotating device.
JP2003208696A 2003-08-25 2003-08-25 Cutting fluid/chip separator Withdrawn JP2005066711A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008302470A (en) * 2007-06-07 2008-12-18 Daikin Ind Ltd Cooling system
WO2010084782A1 (en) * 2009-01-26 2010-07-29 巴工業株式会社 Vertical-type centrifugal separation apparatus
CN102049651A (en) * 2009-11-02 2011-05-11 严方 Impact rolling technology
KR101103149B1 (en) 2010-05-04 2012-01-04 이동석 Oil centrifugal separator
WO2022209025A1 (en) * 2021-03-29 2022-10-06 日本国土開発株式会社 Construction apparatus
CN115179100A (en) * 2022-08-17 2022-10-14 万青青 Machine tool machining scrap separation method

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008302470A (en) * 2007-06-07 2008-12-18 Daikin Ind Ltd Cooling system
WO2010084782A1 (en) * 2009-01-26 2010-07-29 巴工業株式会社 Vertical-type centrifugal separation apparatus
JP5512552B2 (en) * 2009-01-26 2014-06-04 巴工業株式会社 Vertical centrifuge
US9005097B2 (en) 2009-01-26 2015-04-14 Tomoe Engineering Co., Ltd. Vertical centrifugal separator
CN102049651A (en) * 2009-11-02 2011-05-11 严方 Impact rolling technology
KR101103149B1 (en) 2010-05-04 2012-01-04 이동석 Oil centrifugal separator
WO2022209025A1 (en) * 2021-03-29 2022-10-06 日本国土開発株式会社 Construction apparatus
JP7196366B1 (en) 2021-03-29 2022-12-26 日本国土開発株式会社 Construction equipment and method of assembling construction equipment
CN115179100A (en) * 2022-08-17 2022-10-14 万青青 Machine tool machining scrap separation method
CN115179100B (en) * 2022-08-17 2024-02-09 遵义绿环废弃电器电子产品回收处理有限公司 Machine tool processing waste chip separation method

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