JPS63174846A - Spindle device - Google Patents

Spindle device

Info

Publication number
JPS63174846A
JPS63174846A JP62006625A JP662587A JPS63174846A JP S63174846 A JPS63174846 A JP S63174846A JP 62006625 A JP62006625 A JP 62006625A JP 662587 A JP662587 A JP 662587A JP S63174846 A JPS63174846 A JP S63174846A
Authority
JP
Japan
Prior art keywords
spindle shaft
grinding fluid
spindle
hollow part
grinding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP62006625A
Other languages
Japanese (ja)
Other versions
JPH0790443B2 (en
Inventor
Kenichi Matsumura
憲一 松村
Mamoru Inoue
守 井上
Kiyoshi Mayahara
馬屋原　潔
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP62006625A priority Critical patent/JPH0790443B2/en
Publication of JPS63174846A publication Critical patent/JPS63174846A/en
Publication of JPH0790443B2 publication Critical patent/JPH0790443B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/10—Arrangements for cooling or lubricating tools or work
    • B23Q11/1015—Arrangements for cooling or lubricating tools or work by supplying a cutting liquid through the spindle

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)

Abstract

PURPOSE:To keep off any backflow of the grinding fluid supplied to a spindle shaft, by installing a screw in the same direction as a rotational direction looking from the working tool attached side, in a part or the overall length of a hollow part of the spindle shaft. CONSTITUTION:A spindle shaft 10 is rotated at high speed by a high frequency motor 15, and at the time of grinding a workpiece, it supplies grinding fluid from a pipe 14. At this time, a part of the grinding fluid is sometimes to flow back due to centrifugal force to be produced by high speed rotation of the spindle shaft. However, since a screw 13 in the same direction as a rotational direction of the spindle shaft 10 locking from the grindstone attached side is threaded in a hollow part 12 of the spindle shaft 10, it presses the grinding fluid to the stone direction all the time, whereby the fluid is in no case spouted out of the other end of the spindle shaft 10 due to its backflow. Therefore, any back flow of the grinding fluid supplied to the hollow part 12 of the spindle shaft 10 is preventable.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は中空状のスピンドルシャフト内より研削液を供
給する構造のスピンドル装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a spindle device having a structure in which grinding fluid is supplied from within a hollow spindle shaft.

従来の技術 スピンドルシャフトを中空軸とし、砥石内部よシ研削液
を供給する構造のスピンドル装置の従来例を第２図に示
す。１はスピンドルシャフトで、中空軸となっている。BACKGROUND ART FIG. 2 shows a conventional example of a spindle device in which the spindle shaft is a hollow shaft and a grinding fluid is supplied to the inside of a grindstone. 1 is the spindle shaft, which is a hollow shaft.

２はスピンドルシャフト１の先端に取りつけられた砥石
である。３はスピンドルシャフトを高速回転させる高周
波モータである。４は研削液をスピンドルシャフト１内
に供給するパイプである。研削時にはパイプ４より研削
液が被研削物に供給される。2 is a grindstone attached to the tip of the spindle shaft 1. 3 is a high frequency motor that rotates the spindle shaft at high speed. A pipe 4 supplies grinding fluid into the spindle shaft 1. During grinding, a grinding fluid is supplied from the pipe 4 to the object to be ground.

発明が解決しようとする問題点 しかしながら上記のような構成では、砥石を高速で回転
させて研削するとミストがたちあがり、スピンド化シャ
フト中空部より上昇して高周波モーターについて漏電を
起こしたり、スピンドルシャフト１が高速回転すること
による遠心力により、パイプ４よシ供給された研削液の
一部がスピンドルシャフト１の中空部内壁を伝わって矢
印Ａの方向に逆流し、高周波モータ３にかかって漏電し
たり、外部に飛び散るという問題があった。Problems to be Solved by the Invention However, with the above configuration, when the grinding wheel is rotated at high speed for grinding, mist rises and rises from the hollow part of the spun shaft, causing electrical leakage in the high frequency motor and causing the spindle shaft 1 to Due to the centrifugal force caused by the high-speed rotation, a part of the grinding fluid supplied through the pipe 4 travels through the inner wall of the hollow part of the spindle shaft 1 and flows back in the direction of arrow A, which may cause electrical leakage if it is applied to the high-frequency motor 3. There was a problem with the particles scattering outside.

本発明は上記問題点に鑑み、スピンドルシャフト中空部
より研削液が逆流することがない、砥石内部より研削液
を供給する構成のスピンドル装置を提供することである
。SUMMARY OF THE INVENTION In view of the above-mentioned problems, it is an object of the present invention to provide a spindle device configured to supply the grinding liquid from inside the grindstone so that the grinding liquid does not flow backward from the hollow part of the spindle shaft.

問題点を解決するための手段 上記問題点を解決するために本発明のスピンドル装置は
加工工具取付は側からみた回転方向と同方向のねじを前
記スピンドルシャフトの中空部の一部もしくは全長に設
けたものである。Means for Solving the Problems In order to solve the above problems, the spindle device of the present invention is provided with a screw in the same direction as the rotational direction as seen from the side for mounting the processing tool, in a part or the entire length of the hollow part of the spindle shaft. It is something that

作　　用 本発明は上記した構成によって、パイプより供給された
研削液は、スピンドル装置が回転している時には常に砥
石側に押しやられ、スピンドルシャフト中空部の内壁を
伝わって研削液が逆流するということがない。Function: Due to the above-described configuration, the grinding fluid supplied from the pipe is always pushed toward the grinding wheel when the spindle device is rotating, and the grinding fluid flows back through the inner wall of the hollow part of the spindle shaft. There is no.

実施例 以下本発明の一実施例のスピンドル装置について、図面
を参照しながら説明する。EXAMPLE Hereinafter, a spindle device according to an example of the present invention will be described with reference to the drawings.

第１図は本発明の実施例におけるスピンドル装置の断面
図である。１０はスピンドルシャフトで、１１は加工工
具としての砥石である（以下砥石という。）。スピンド
ルシャフト１０は研削液を砥石１１内より被研削物（図
示せず）に供給するため中空軸となっている。スピンド
ルシャフト１゜の中空部１２には、砥石１１の取りつけ
側からみたスピンドルシャフト１ｏの回転方向と同方向
のねじ１３が全長もしくは一部に設けられている。FIG. 1 is a sectional view of a spindle device in an embodiment of the present invention. 10 is a spindle shaft, and 11 is a grindstone as a processing tool (hereinafter referred to as a grindstone). The spindle shaft 10 is a hollow shaft for supplying grinding fluid from the inside of the grindstone 11 to a workpiece to be ground (not shown). The hollow portion 12 of the spindle shaft 1° is provided with a screw 13 along the entire length or part thereof, which runs in the same direction as the rotational direction of the spindle shaft 1o when viewed from the mounting side of the grindstone 11.

１４は研削液を砥石１１よシ被研削物に供給するためス
ピンドルシャフトに挿入されたパイプである。パイプ１
４の砥石１１側の先端はねじ１３の砥石と反対側の先端
より砥石１１側である。１６はスピンドルシャフト１ｏ
を高速で回転させる高周波モータであり、１６は高周波
モータ１６を内蔵したモータハウジングである。１７は
モータハウジング１６のカバー、１８はスピンドルシャ
フト１０の端部に固定された傘であり、砥石１１の研削
液の出口が蓋される等の原因で万一研削液が逆流した場
合に、高周波モータ１５に直接研削液がかかることを最
小限にとどめるようになっている。１９はパイプ１４の
保持部材である。２０はベアリングであり、２１はスピ
ンドル本体である。A pipe 14 is inserted into the spindle shaft for supplying grinding fluid to the grinding wheel 11 and the object to be ground. pipe 1
The tip of the screw 4 on the grindstone 11 side is closer to the grindstone 11 than the tip of the screw 13 on the side opposite to the grindstone. 16 is spindle shaft 1o
This is a high frequency motor that rotates at high speed, and 16 is a motor housing that houses the high frequency motor 16. Reference numeral 17 indicates a cover of the motor housing 16, and reference numeral 18 indicates an umbrella fixed to the end of the spindle shaft 10. In the event that the grinding fluid flows back due to the outlet of the grinding fluid of the grinding wheel 11 being covered, etc., high-frequency Direct application of grinding fluid to the motor 15 is kept to a minimum. 19 is a holding member for the pipe 14. 20 is a bearing, and 21 is a spindle body.

２２はスピンドルシャフト中空部に砥石取付は側と反対
側より圧縮空気を供給する空気孔である。Reference numeral 22 denotes an air hole for supplying compressed air from the side opposite to the side where the grindstone is attached to the hollow part of the spindle shaft.

以上のように構成されたスピンドル装置について動作を
説明する。The operation of the spindle device configured as described above will be explained.

スピンドルシャフト１ｏは高周波モータ１６により高速
回転する。被研削物を研削する時には研削液がパイプ１
４より供給される。この時スピンドルシャフト１０が高
速回転することによって発生する遠心力によって研削液
の一部が逆流することがある。しかしスピンドルシャフ
ト１ｏの中空部１２には砥石取付は側からみたスピンド
ルシャフト１ｏの回転方向と同方向のねじが切られてい
るため、研削液は砥石方向に常におしやられ、逆流して
スピンドルシャフトの他端より研削液が噴出することは
ない。また圧縮空気がスピンドルシャフト中空部に供給
されているためミストが中空部より上昇することもない
。The spindle shaft 1o is rotated at high speed by a high frequency motor 16. When grinding the object to be ground, the grinding fluid flows into pipe 1.
Supplied from 4. At this time, a part of the grinding fluid may flow backwards due to the centrifugal force generated by the high speed rotation of the spindle shaft 10. However, in the hollow part 12 of the spindle shaft 1o, a thread is cut in the same direction as the rotating direction of the spindle shaft 1o when the grinding wheel is attached, so the grinding fluid is always pushed towards the grinding wheel and flows backwards into the spindle shaft. Grinding fluid will not spout from the other end. Furthermore, since compressed air is supplied to the hollow part of the spindle shaft, mist does not rise above the hollow part.

以上のように本実施例によれば、砥石取付は側からみた
スピンドルシャフトの回転方向と同方向のねじをスピン
ドルシャフトの中空部の少なくとも一部に設けることに
より、スピンドルシャフトの中空部に供給した研削液の
逆流を防止することができ、またスピンドルシャフト中
空部に圧縮空気を供給することにより、中空部からのミ
ストの上昇を防止することができる。As described above, according to this embodiment, the grinding wheel is attached by providing a screw in the same direction as the rotational direction of the spindle shaft as seen from the side in at least a part of the hollow part of the spindle shaft. It is possible to prevent backflow of the grinding fluid, and by supplying compressed air to the hollow part of the spindle shaft, it is possible to prevent mist from rising from the hollow part.

発明の効果 以上のように本発明によれば、加工工具取付は側からみ
た回転方向と同方向のねじを前記スピンドルシャフトの
中空部に設けることにより、スピンドルシャフトの中空
部に供給された研削液の逆流を防止することができる。Effects of the Invention As described above, according to the present invention, the machining tool is attached by providing a screw in the hollow part of the spindle shaft in the same direction as the direction of rotation when viewed from the side, so that the grinding fluid supplied to the hollow part of the spindle shaft is fixed. backflow of water can be prevented.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明の実施例におけるスピンドル装置の断面
図、！２図は従来のスピンドル装置の断面図である。 １ｏ・・・・・・スピンドルシャフト、１１・・・・・
・砥石、１２・・・・・・中空部、１３・・・・・・ね
じ、１４・・・・・・パイプ。 第１図 クク 第２図FIG. 1 is a sectional view of a spindle device in an embodiment of the present invention. FIG. 2 is a sectional view of a conventional spindle device. 1o...Spindle shaft, 11...
・Whetstone, 12...Hollow part, 13...Screw, 14...Pipe. Figure 1 Kuku Figure 2

Claims (2)

【特許請求の範囲】[Claims] （１）スピンドルシャフトが中空軸で、このスピンドル
シャフトの中空部に上端より加工液供給パイプを挿入し
て加工液を前記スピンドルシャフトの中空部を通してス
ピンドルシャフト下端に取り付けた加工工具と被加工物
との間に供給するスピンドル装置において、加工工具取
付け側からみた回転方向と同方向のねじを前記スピンド
ルシャフトの中空部の内周面の少なくとも一部に設けた
スピンドル装置。(1) The spindle shaft is a hollow shaft, and a machining fluid supply pipe is inserted into the hollow part of the spindle shaft from the upper end, and the machining fluid is passed through the hollow part of the spindle shaft and attached to the lower end of the spindle shaft. In the spindle device, the spindle device is provided with a screw in the same direction as the rotational direction as seen from the processing tool mounting side on at least a part of the inner circumferential surface of the hollow portion of the spindle shaft. （２）前記スピンドルシャフト中空部に加工工具の取付
け側と反対側より圧縮空気を供給することを特徴とする
特許請求の範囲第１項記載のスピンドル装置。(2) The spindle device according to claim 1, characterized in that compressed air is supplied to the hollow portion of the spindle shaft from a side opposite to a side on which the processing tool is attached.
JP62006625A 1987-01-14 1987-01-14 Spindle device Expired - Lifetime JPH0790443B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62006625A JPH0790443B2 (en) 1987-01-14 1987-01-14 Spindle device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62006625A JPH0790443B2 (en) 1987-01-14 1987-01-14 Spindle device

Publications (2)

Publication Number Publication Date
JPS63174846A true JPS63174846A (en) 1988-07-19
JPH0790443B2 JPH0790443B2 (en) 1995-10-04

Family

ID=11643542

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62006625A Expired - Lifetime JPH0790443B2 (en) 1987-01-14 1987-01-14 Spindle device

Country Status (1)

Country Link
JP (1) JPH0790443B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996002353A1 (en) * 1994-07-20 1996-02-01 Koyo Seiko Co., Ltd. Magnetic bearing spindle apparatus
WO2006089594A1 (en) * 2005-02-24 2006-08-31 Shell Internationale Research Maatschappij B.V. Metal working fluid
CN103158070A (en) * 2011-12-12 2013-06-19 北京中电科电子装备有限公司 Grinding coolant input mechanism of motorized main shaft and thinner
CN109333363A (en) * 2018-11-21 2019-02-15 山东大学 A kind of flexible bistrique cleaning tool and method for deep hole and intersection hole bur
CN114247937A (en) * 2021-12-15 2022-03-29 黄志福 High-end plastics mould burring device for manufacturing

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996002353A1 (en) * 1994-07-20 1996-02-01 Koyo Seiko Co., Ltd. Magnetic bearing spindle apparatus
US5804900A (en) * 1994-07-20 1998-09-08 Koyo Seiko Co., Ltd. Magnetic bearing spindle device
WO2006089594A1 (en) * 2005-02-24 2006-08-31 Shell Internationale Research Maatschappij B.V. Metal working fluid
CN103158070A (en) * 2011-12-12 2013-06-19 北京中电科电子装备有限公司 Grinding coolant input mechanism of motorized main shaft and thinner
CN109333363A (en) * 2018-11-21 2019-02-15 山东大学 A kind of flexible bistrique cleaning tool and method for deep hole and intersection hole bur
CN114247937A (en) * 2021-12-15 2022-03-29 黄志福 High-end plastics mould burring device for manufacturing

Also Published As

Publication number Publication date
JPH0790443B2 (en) 1995-10-04

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