JPS6331460A - Cleaning method for voice coil motor - Google Patents
Cleaning method for voice coil motorInfo
- Publication number
- JPS6331460A JPS6331460A JP17363586A JP17363586A JPS6331460A JP S6331460 A JPS6331460 A JP S6331460A JP 17363586 A JP17363586 A JP 17363586A JP 17363586 A JP17363586 A JP 17363586A JP S6331460 A JPS6331460 A JP S6331460A
- Authority
- JP
- Japan
- Prior art keywords
- vcm
- air
- voice coil
- magnetic powder
- coil motor
- 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.)
- Pending
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title claims description 6
- 239000000428 dust Substances 0.000 claims abstract description 6
- 238000007664 blowing Methods 0.000 claims description 2
- 239000006247 magnetic powder Substances 0.000 abstract description 19
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 abstract description 4
- 239000003960 organic solvent Substances 0.000 abstract description 4
- 239000012535 impurity Substances 0.000 abstract description 2
- 239000003921 oil Substances 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- XAEXSWVTEJHRMH-UHFFFAOYSA-N chloropyrilene Chemical compound C=1C=CC=NC=1N(CCN(C)C)CC1=CC=C(Cl)S1 XAEXSWVTEJHRMH-UHFFFAOYSA-N 0.000 abstract 1
- 229950005434 chloropyrilene Drugs 0.000 abstract 1
- 238000005238 degreasing Methods 0.000 abstract 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 101000986989 Naja kaouthia Acidic phospholipase A2 CM-II Proteins 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000006249 magnetic particle Substances 0.000 description 2
- 230000005415 magnetization Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Landscapes
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は磁気ディスク装置に係り、特に大容量、高速ア
クセスを行なうＨＤＡに好適な、ヘッド位置決め用ＶＣ
Ｍに付着した微小磁性粉の除去する清掃方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a magnetic disk device, and in particular to a head positioning VC suitable for HDA with large capacity and high speed access.
This invention relates to a cleaning method for removing minute magnetic particles attached to M.
従来のディスク装置においては、データの記録密度は低
くかったため、１ビット当りの磁化エネルギーも大きく
、外部磁場に対する感度も鈍かった。又磁気ヘッドの浮
上量も高いため、磁気ヘッドに磁性粉が付着してもデー
タに与える影響も小さく、微小磁性粉によるデータ消失
という障害は発生しなかったため、磁性粉を除去する清
掃は行なわれていなかった。In conventional disk devices, the data recording density was low, the magnetization energy per bit was large, and the sensitivity to external magnetic fields was low. In addition, because the flying height of the magnetic head is high, even if magnetic powder adheres to the magnetic head, it has little effect on data, and there was no problem of data loss due to minute magnetic particles, so cleaning to remove magnetic powder was not performed. It wasn't.
尚、磁気ディスク装置内のゴミを除去するものとして関
連するものとしては、特開昭５７−２００９７１号公報
があげられる。Note that Japanese Patent Application Laid-Open No. 57-200971 is a related method for removing dust from a magnetic disk device.
上記従来技術においては、データ記録密度も低く又、磁
気ヘッドの浮上量も高かったため、ボイスコイルモータ
（以下、ＶＣＭと呼ぶ）製造時にＶ ＣＭに付着した磁
石粉の影響はあまり問題にならなかった。しかし、磁気
ディスク装置がより大量化され、１ビット当りの磁化エ
ネルギーの低下、及び磁気ヘッドの低浮上化により、磁
気ディスク、磁気ヘッドスライダ一部に付着した磁性粉
の影響は大きくなった。又より高速アクセス２行なうた
め高性能ＶＣＭを使用する様になったため、ＶＣＭに使
用する磁石の性能も高くなり、微粉（１〜数１０μｍ）
になっても大きな磁場（数１００工ルスデツト以上）を
持つ様になった。このため、磁気ディスクの回転により
発生する風、振動により、ＶＣＭに付着していた、磁性
粉が飛散して、磁気ディスク、磁気ヘッドに磁性粉が付
着し、データを消失させるという問題があった。In the above conventional technology, the data recording density was low and the flying height of the magnetic head was high, so the influence of magnet powder attached to the VCM during the manufacture of voice coil motors (hereinafter referred to as VCM) did not pose much of a problem. . However, as magnetic disk drives have become more mass-produced, the magnetization energy per bit has decreased, and the flying height of the magnetic head has become lower, the influence of magnetic powder adhering to a portion of the magnetic disk and magnetic head slider has become greater. In addition, as high-performance VCMs have come to be used for faster access, the performance of the magnets used in VCMs has also increased, reducing fine particles (1 to several tens of micrometers).
Even now, it has a large magnetic field (more than several hundred millimeters). For this reason, there was a problem in that the wind and vibrations generated by the rotation of the magnetic disk would scatter the magnetic powder adhering to the VCM, causing the magnetic powder to adhere to the magnetic disk and magnetic head, causing data to be lost. .
本発明の目的は、ＶＣＭに付着している微小磁性粉？効
率よく除去し、データ消失障害を未然に防止することに
ある。The purpose of the present invention is to solve the problem of fine magnetic powder attached to VCM. The purpose is to remove data efficiently and prevent data loss failures.
上記目的は、ＶＣＭを有機溶剤（フレオン、アセトン、
クロロセン等）で脱脂を行ない、ＶＣＭに付着した磁性
粉がとれ易い状態にし、水分、油分、塵埃を取り除いた
清浄な高速空気流（最低、磁気ディスクの回転により発
生する風速以上）を、ＶＣＭ全面に均一に当て、磁性粉
を吹き飛すことにより達成される。For the above purpose, VCM is mixed with organic solvents (Freon, acetone,
The VCM is degreased with chlorocene, etc.) to make it easier to remove magnetic powder attached to the VCM, and a clean high-speed air flow (minimum, higher than the wind speed generated by the rotation of the magnetic disk) that removes moisture, oil, and dust is applied to the entire surface of the VCM. This is achieved by applying it evenly to the magnetic powder and blowing away the magnetic powder.
〔作用〕
工場用エアー源より取り出した空気はエアークリーニン
グユニット内で水分、油分、塵埃が除去される。この空
気は線状のノズル部より噴出し、へｒＣＭに当てる。Ｖ
ＣＭは全面均一に清浄高速空気流に当てるため、回転テ
ーブル上に設置されている。ＶＣＭに当てる空気流の速
度は、ＶＣＭが使用されるＨＤＡ内の風速を考慮し、ノ
ズル部圧力を調節することにより変更する。ＶＣＭより
吹き飛された磁性粉は排気ダクトより吸引し、再付着す
るのを防止する。[Operation] Water, oil, and dust are removed from the air taken out from the factory air source in the air cleaning unit. This air is ejected from a linear nozzle portion and hits the rCM. V
The CM is placed on a rotary table in order to uniformly expose the entire surface to a clean, high-speed air flow. The speed of the airflow applied to the VCM is changed by adjusting the nozzle pressure, taking into account the wind speed within the HDA in which the VCM is used. Magnetic powder blown away from the VCM is attracted through the exhaust duct to prevent it from re-adhering.
以下、本発明の一実施例？第１図により説明する。清掃
を行なうＶ ＣＭ ２は、ＶＣＭ回転テープ／Ｉ／３上
に設置する。ＶＣＭ回転回転テーブル上−タ６減速器３
により１〜１００ ｒｐｍ程度で回転する。The following is an example of the present invention? This will be explained with reference to FIG. The VCM 2 to be cleaned is installed on the VCM rotating tape/I/3. VCM rotary rotary table top-ta 6 reducer 3
It rotates at about 1 to 100 rpm.
７０Ｍ２には、７０Ｍ２を直接、手で触れ汚染すること
の防止と、７０Ｍ２のハンドリング性を良くするため、
持ち運び眉ハンドル４が取り付られている。清掃用空気
は、工場用空気源（圧力４〜７（−）から、空気内不純
物（水分、油分、塵埃）を除去するエアークリーニング
ユニット１１に１続される。エアークリーニングユニッ
ト１１内の構成は、手動止め弁１２、流量計１３、電磁
弁１４、粗フイルタ−１５、中フィルター１６、精密フ
ィルター１７、レギュレータ１８からなる。このエアー
クリーニングユニット１１より出た空気は・空気分配器
９から複数本（第１図では３本）の配管２０で、エアー
ノズル部７に接続し、７０Ｍ２の高さより長い線状ノズ
ルより、長手方向に、均一な空気流ご形成する。圧力計
８により、ノズルの直前の空気圧を測定する。ノズルか
ら噴出する、空気速度は、この圧力により、第２２図に
示すように、高圧になると、より高速空気流が発生する
。従ってレギュレータ１８により適正な速度になる様に
、調節を行なう。In order to prevent 70M2 from being contaminated by direct contact with the 70M2 and to improve the handling of the 70M2,
A carrying handle 4 is attached. Cleaning air is connected from a factory air source (pressure 4 to 7 (-)) to an air cleaning unit 11 that removes impurities in the air (moisture, oil, dust).The configuration inside the air cleaning unit 11 is as follows. , a manual stop valve 12, a flow meter 13, a solenoid valve 14, a coarse filter 15, a medium filter 16, a precision filter 17, and a regulator 18. The piping 20 (three in Fig. 1) is connected to the air nozzle part 7, and a linear nozzle with a height of more than 70 m2 forms a uniform air flow in the longitudinal direction. Measure the air pressure just before.The velocity of the air ejected from the nozzle is determined by this pressure, as shown in Fig. 22.The higher the pressure, the faster the airflow will be generated.Therefore, the regulator 18 will adjust the speed of the air to the appropriate speed. Make adjustments accordingly.
ノズル部７と７０Ｍ２の距離Ａは、極力小さくすること
により、より高速空気流が当るので清掃効果は上る。ノ
ズル部７と７０Ｍ２、■ＣＭ回転テーブル部３は、チャ
ンバー１で囲い、高速空気流で吹き飛ばされた、磁性粉
が、Ｖ ＣＭ ２に再付着しない様に、排気ダクト（図
示されていない）犬、接続されている。ノズル部７から
噴出する空気量より、排気ダクトから吸引する空気量を
多くすると、磁性粉で汚染された空気がチャンバー１外
に流出し、周囲を汚染することが防止される。By making the distance A between the nozzle part 7 and 70M2 as small as possible, the cleaning effect will be improved because a higher speed airflow will hit the nozzle part 7 and 70M2. The nozzle parts 7 and 70M2, and the CM rotary table part 3 are surrounded by a chamber 1, and an exhaust duct (not shown) is installed so that the magnetic powder blown off by the high-speed air flow does not adhere to the V CM 2 again. ,It is connected. If the amount of air sucked from the exhaust duct is larger than the amount of air ejected from the nozzle part 7, air contaminated with magnetic powder is prevented from flowing out of the chamber 1 and contaminating the surrounding area.
タイマー１０により、モータ６と電磁弁１４のオン／オ
フを行ない、一定時間Ｖ ＣＭ ２の清掃を行なう。ノ
ズル部の詳細を第３図乃至第７図に示す。The motor 6 and the solenoid valve 14 are turned on and off by the timer 10, and the V CM 2 is cleaned for a certain period of time. Details of the nozzle section are shown in FIGS. 3 to 7.
第６図は、空気流の噴出方向が一定なノズルを示す。第
４図には、固定ノズル７１の前に、可動ノズル７２を設
け、モータ７４により、可動ノズル号左右に動かし、空
気流の向きを左右±θ度根石ことが出来るノズル部の例
を示す。空気流の向きが左右に振れることと、７０Ｍ２
が回転することにより、空気流は第８図に示すＶ ＣＭ
２ （Ｖ ＣＭはヨーク３１とマグネット３０で構成
されている）のＤ面にも当り、清掃が、より均一に行な
われる。第６図は空気流の向き？変える他の実施例を示
す。回転可動ノズル７３はベアリング７６で支持され、
モータ７４で左右に±θ度回転し空気流の向きを変える
。清掃手項は、７０Ｍ２を有機溶剤（フレオン、アセ−
トン、クロロセン等）で脱脂を行ない、ＶＣＭ２に付着
している磁性粉が除去されや丁い状態にする。その後Ｖ
ＣＭ回転テーブル３上に乗せ、タイマー１０のＳＷをオ
ンにすると、電磁弁１４が開になり、又ＶＣＭ回転テー
ブル３が回転し、ＶＣＭ２に高速空気流が噴出される。FIG. 6 shows a nozzle in which the direction of air flow is constant. FIG. 4 shows an example of a nozzle section in which a movable nozzle 72 is provided in front of a fixed nozzle 71, and the movable nozzle is moved left and right by a motor 74, so that the direction of the airflow can be adjusted by ±θ degrees left and right. The direction of the air flow swings from side to side, and 70M2
As shown in Fig. 8, the airflow changes to V CM as shown in Fig. 8.
2 (VCM is composed of a yoke 31 and a magnet 30), the cleaning is performed more uniformly. What is the direction of air flow in Figure 6? Another example will be shown. The rotatable nozzle 73 is supported by a bearing 76,
The motor 74 rotates ±θ degrees left and right to change the direction of the airflow. The cleaning procedure is to use 70M2 with an organic solvent (Freon, acetic acid).
Degrease the VCM2 with a tonne, chlorocene, etc.) to remove the magnetic powder adhering to the VCM2 and bring it to a clean state. Then V
When placed on the CM rotating table 3 and turning on the SW of the timer 10, the solenoid valve 14 is opened, the VCM rotating table 3 rotates, and a high-speed air flow is ejected to the VCM 2.
一定時間高速空気流カ当るとタイマー１０によりオフと
なり清掃は完了する。本実施例によれば、ＶＣＭに付着
している磁性微粉が効率よく除去するのに効果がある。When the high speed air flow is applied for a certain period of time, the timer 10 turns off and the cleaning is completed. According to this embodiment, it is effective to efficiently remove magnetic fine powder adhering to the VCM.
本発明によれば、ＶＣＭに付着している微小な磁性粉（
１〜数１０μｍ）が、容易に除去出来るため、磁性粉が
磁気ディスク、磁気ヘッドに付着して、データが消失す
るという障害が未然に防止されるので、製造時の生産性
向上と、装置稼動中の磁性粉の飛散が、防止でき、高信
頼性の磁気ディスク装置２提供するのに効果がある０According to the present invention, minute magnetic powder (
1 to several tens of micrometers) can be easily removed, preventing problems such as data loss due to magnetic powder adhering to magnetic disks and magnetic heads, improving productivity during manufacturing and improving equipment operation. It is effective in preventing scattering of magnetic powder inside and providing a highly reliable magnetic disk device 2.
第１図は、本発明の一実施例の設備の概略図、第２図は
ノズル噴出空気速度特性を示す図、第３−図は固定ノズ
ル部の外観図、第４図は、可動ノズルを具備したノズル
部の断面来、第５図は第４図の断面Ｂ−Ｂ図、第６図は
可動ノズルの他の実施例を示す図、第７図は第６図のＣ
−Ｃ断面図、第８図は、清掃を行なうＶＣＭの外観図で
ある。
１・・・チャンバー、 ２・・・ＶＣＭ。Fig. 1 is a schematic diagram of equipment according to an embodiment of the present invention, Fig. 2 is a diagram showing nozzle jet air velocity characteristics, Fig. 3 is an external view of the fixed nozzle section, and Fig. 4 is a diagram showing the movable nozzle. 5 is a cross-sectional view taken along the line B-B in FIG. 4, FIG. 6 is a view showing another embodiment of the movable nozzle, and FIG.
-C sectional view and FIG. 8 are external views of the VCM that performs cleaning. 1...Chamber, 2...VCM.
Claims (1)
む磁気ディスク装置用ボイスコイルモータの清掃方法で
あって、前記ボイスコイルモータに前記磁気ディスクの
回転により生じる空気流以上の空気流を吹き当てること
により、ボイスコイルモータに付着したゴミを除去する
ことを特徴とするボイスコイルモータの清掃方法。1. A method for cleaning a voice coil motor for a magnetic disk device including a magnetic disk that generates a high-speed air flow by rotation, the method comprising blowing an air flow greater than the air flow generated by the rotation of the magnetic disk onto the voice coil motor. A voice coil motor cleaning method characterized by removing dust attached to the voice coil motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17363586A JPS6331460A (en) | 1986-07-25 | 1986-07-25 | Cleaning method for voice coil motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17363586A JPS6331460A (en) | 1986-07-25 | 1986-07-25 | Cleaning method for voice coil motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6331460A true JPS6331460A (en) | 1988-02-10 |
Family
ID=15964262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17363586A Pending JPS6331460A (en) | 1986-07-25 | 1986-07-25 | Cleaning method for voice coil motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6331460A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008119589A (en) * | 2006-11-10 | 2008-05-29 | Mitsubishi Electric Corp | Dust collector |
-
1986
- 1986-07-25 JP JP17363586A patent/JPS6331460A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008119589A (en) * | 2006-11-10 | 2008-05-29 | Mitsubishi Electric Corp | Dust collector |
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