JPS62166934A - Manufacturing method of floating head - Google Patents
Manufacturing method of floating headInfo
- Publication number
- JPS62166934A JPS62166934A JP1045886A JP1045886A JPS62166934A JP S62166934 A JPS62166934 A JP S62166934A JP 1045886 A JP1045886 A JP 1045886A JP 1045886 A JP1045886 A JP 1045886A JP S62166934 A JPS62166934 A JP S62166934A
- Authority
- JP
- Japan
- Prior art keywords
- floating head
- gas
- head
- floating
- machining jig
- 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
- 238000007667 floating Methods 0.000 title claims abstract description 77
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 claims description 16
- 238000001816 cooling Methods 0.000 abstract description 8
- 239000003795 chemical substances by application Substances 0.000 abstract description 7
- 239000000314 lubricant Substances 0.000 abstract description 7
- 238000003754 machining Methods 0.000 abstract description 6
- 230000001050 lubricating effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 244000089486 Phragmites australis subsp australis Species 0.000 description 1
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000000834 fixative Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
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
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/08—Work-clamping means other than mechanically-actuated
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は記録ｆｅｉｔに用いられる浮動形ヘッドの３Ｂ
造方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a 3B floating head used for recording feit.
Regarding the manufacturing method.
本発明は、記録！！置に用いられる浮動形ヘッドの製造
方法において、気体潤滑面形成前に加工治具に浮動形ヘ
ッドを固定する際に、気体潤滑面形成予定面側の温度を
その逆面より低く保持して固定し、気体潤滑面形成予定
面とその逆面に熱膨張差による内部応力を内在させたま
ま、前記気体潤滑面を平面状に形成することにより、浮
動形ヘッドを加工治具より解放すれば、所要の平坦度公
差内の凸形状の気体潤滑面を有する浮動形ヘッドを製造
できる。また、この際に特殊な形状をした刀ロ工治具が
必要ではないため、製造費か安くまた浮動形ヘッドの生
産性も高い。The present invention records! ! In the manufacturing method for floating heads used in machines, when fixing the floating head to a processing jig before forming the gas-lubricated surface, the temperature of the surface on which the gas-lubricated surface is to be formed is maintained lower than that of the opposite side. However, if the floating head is released from the machining jig by forming the gas lubrication surface into a planar shape while retaining the internal stress due to the difference in thermal expansion between the surface where the gas lubrication surface is to be formed and the opposite surface, Floating heads can be manufactured with convex gas-lubricated surfaces within the required flatness tolerances. In addition, since no specially shaped knife tool is required at this time, manufacturing costs are low and the productivity of the floating head is high.
ところで、コンタクト・スタート・ストップ（以１：’
ａｓｓと略す）方式とは浮動形ヘッドと記録媒体との相
対速度が零のときに両者か密着していて、浮動形ヘッド
に対して記録媒体の相対速度が充分になれば気体潤滑面
により浮動形ヘッドと記録媒体が非接触状態になるとい
うものであるが、前述の凸形状の気体潤滑面を持つ浮勧
形ヘソドはこのａＳＳ方式に適合している。By the way, contact start/stop (hereafter 1:'
The floating head and recording medium are in close contact when their relative speed is zero, and when the relative speed of the recording medium to the floating head is sufficient, the recording medium floats due to the gas lubricated surface. The aSS type head and the recording medium are in a non-contact state, and the aforementioned floating type head having a convex gas-lubricated surface is compatible with this aSS method.
ａＳＳ方式を用いた浮動形ヘッドの一例には、外部記憶
装置である磁気ディスクなどのヘッドがある。そして、
昨今の外部記憶装置は高密度化がますます望まれ、これ
に伴ない浮動形ヘッドと記録媒体の間隙瀘も減少してい
る。これにより、ａＳＳ方式で用いられる浮動形ヘッド
は、記録媒体と離れる時点での相対速度が増加し、従来
以上にＣ８Ｓ方式に適した浮動形ヘッドが望まれている
。An example of a floating head using the aSS method is a head for a magnetic disk, which is an external storage device. and,
In recent years, it has become increasingly desirable for external storage devices to have higher densities, and as a result, the gap between the floating head and the recording medium is also decreasing. As a result, the relative speed of the floating head used in the aSS method increases when it separates from the recording medium, and a floating head suitable for the C8S method is more desired than ever.
一般的に浮動形ヘッドの気体潤滑面の平面度は５１１０
（Ｘ）以下と厳しい規格であるが、この気体潤滑面の形
状には二様式か存在する◎一方は気体潤滑面が凸状であ
シ、また他方は凹状の場合である。Generally, the flatness of the gas lubricated surface of a floating head is 5110.
Although it is a strict standard (X) or less, there are two types of shapes of this gas lubricated surface. One is where the gas lubricated surface is convex, and the other is concave.
この二形状の浮動形ヘッドについて、０８８方式に対し
ての適合性の調査結果を第２図に示す。浮動形ヘッドの
相手は表面に固体潤滑膜を付加しである磁気ディスクで
ある。第２図によれば、凸形状の気体潤滑面を持つ浮動
形ヘッドの摩擦係数はａＳＳ回数の増加により漸増する
のに対して、凹形状の気体潤滑面を持つ浮動形ヘッドの
摩擦係数はＯ８８回数の初期から大幅な増加を呈し、１
もなく２１で記録媒体が損傷してしまう。この両者の差
は、特に凹形状の気体潤滑面が記録媒体の固体潤滑膜を
けずシ易いことに起因している。 □これらの結果より
、ａＳＳ方式に適合する浮動形ヘッドは凸形状の気体潤
滑面を持つものである。FIG. 2 shows the results of an investigation into the compatibility of these two types of floating heads with the 088 system. The counterpart of the floating head is a magnetic disk, which has a solid lubricant film added to its surface. According to Figure 2, the friction coefficient of the floating head with a convex gas-lubricated surface gradually increases as the number of aSS increases, whereas the friction coefficient of the floating head with a concave gas-lubricated surface is O88. There was a significant increase from the beginning of the number of times, and 1
The recording medium is damaged at 21. This difference between the two is due to the fact that the concave gas lubricant surface is particularly likely to damage the solid lubricant film of the recording medium. □From these results, a floating head suitable for the aSS method has a convex gas-lubricated surface.
しかし、前述の従来技術では、目的の平面度以内であ夛
、かつ凸状である気体潤滑面を有する浮動形ヘッドを意
図的に、また安定的に製造することが困難であるという
問題点を有する◎この対処としては、浮動形ヘッドを固
定する加工治具を特殊形状、例えば浮動形ヘッドを固定
する部分をくぼませてそこに浮動形ヘッドを強性的にな
られせて気体潤滑面を形成する方法があるか、これは加
工治具の製造が非常に困難である。However, the above-mentioned conventional technology has the problem that it is difficult to intentionally and stably manufacture a floating head having a convex gas-lubricated surface within the desired flatness. ◎To deal with this, the processing jig that fixes the floating head can be shaped into a special shape, for example, the part where the floating head is fixed is recessed, and the floating head is forcefully placed there to create a gas lubricated surface. Is there a way to form this, but it is very difficult to manufacture a processing jig?
そこで本発明はこのような問題点を解決するもので、そ
の目的とするところは、ａＳＳ方式に適した凸状の気体
潤滑面を持つ浮動形ヘッドの製造方法を提供するところ
にある。The present invention is intended to solve these problems, and its purpose is to provide a method for manufacturing a floating head having a convex gas-lubricated surface suitable for the aSS method.
本発明の浮動形ヘッドの製造方法は、気体潤滑面形成前
に加工治具に前記浮動形ヘッドを固定する際に、前記気
体潤滑面形成予定面側の温度をその逆面より低く保持し
て前記浮動形ヘッドを前記加工治具に固定し、つぎに気
体潤滑面をほぼ平面状に形成し、さらに浮動形ヘッドを
加工治具より解放することを特徴とする。In the method for manufacturing a floating head of the present invention, when fixing the floating head to a processing jig before forming the gas-lubricated surface, the temperature of the surface on which the gas-lubricated surface is to be formed is maintained lower than that of the opposite side. The floating head is fixed to the processing jig, the gas lubricated surface is formed into a substantially planar shape, and the floating head is released from the processing jig.
本発明の上記の構成によれば、浮動形ヘッドを加工治具
に固定する際に浮動形ヘッドに内部応力を内在させ、ま
たその内部応力は浮動形ヘッドを加工治具よ）解放した
ときに気体潤滑面を凸状に形成する類のものであシ、ま
た加工治具に固定する際の浮動形ヘッドの気体潤滑面形
成予定面とその逆面との温度差を意図的に制御すること
により加工治具に固定された浮動形ヘッドの気体潤滑面
金平面に形成した後、浮動形ヘッドを加工治具より解放
すれば、所要の平坦度の凸状の気体潤滑面を有する浮動
形ヘッドを安定的に製造することができる。According to the above structure of the present invention, when the floating head is fixed to the processing jig, internal stress is generated in the floating head, and when the floating head is released from the processing jig, the internal stress is It is a type that forms a convex gas-lubricated surface, and it intentionally controls the temperature difference between the surface where the gas-lubricated surface is to be formed and the opposite surface of the floating head when it is fixed to a processing jig. After the gas-lubricated surface of the floating head fixed to the processing jig is formed into a flat metal surface, if the floating head is released from the processing jig, the floating head has a convex gas-lubricated surface with the required flatness. can be produced stably.
第１図は本発明の一実施例における浮動形ヘッドの製造
方法を示す側面図である。浮動形ヘッド１は加工治具２
に固定されるに際し、熱軟化性の固定剤３を両者間に塗
布して用いられることが多い。この固定剤５は浮動形ヘ
ッド１と加工治具２を放置することにより、冷却固化す
る０さて、本発明においては、この固定剤３の冷却同化
時に第１図（ａ）に示すように、浮動形ヘッド１の上方
に冷却ファン４ｔ−配置し、これにより冷却風５を送り
浮動形ヘッド１の気体潤滑面形成予定面６金冷却する。FIG. 1 is a side view showing a method of manufacturing a floating head according to an embodiment of the present invention. Floating head 1 is processing jig 2
When fixing the two, a heat-softening fixing agent 3 is often applied between the two. This fixing agent 5 is cooled and solidified by leaving the floating head 1 and processing jig 2 alone.In the present invention, when the fixing agent 3 is cooled and assimilated, as shown in FIG. 1(a), A cooling fan 4t is disposed above the floating head 1, thereby sending cooling air 5 to cool the surface 6 of the floating head 1 where the gas lubricated surface is to be formed.
これにより、加工治具２も冷却されるが、その度合は浮
動形ヘッド１の気体潤滑面形成予定面６の方が大きく、
気体潤滑面形成予定面６の温度は逆面７よりも低くなる
。この両者の温度差と浮動形ヘッド１の材質による線膨
張係数とに応じて、第１図（ａ）に示すように気体潤滑
面形成予定面Ｘ６が凹状のまま、浮動形ヘッド１は加工
治具２に固定され、浮動形ヘッド１中には解放後に気体
潤滑面形成予定面６′ｔ−凸状にしようとする内部応力
が内在することになる。As a result, the processing jig 2 is also cooled, but the degree of cooling is greater on the surface 6 where the gas lubricated surface of the floating head 1 is to be formed.
The temperature of the surface 6 where the gas lubrication surface is to be formed is lower than that of the opposite surface 7. Depending on the temperature difference between the two and the coefficient of linear expansion due to the material of the floating head 1, the floating head 1 is processed while the surface X6 where the gas lubricating surface is to be formed remains concave, as shown in FIG. 1(a). The floating head 1 is fixed to the tool 2, and internal stress exists in the floating head 1 which tends to make the gas lubricating surface forming surface 6't-convex after release.
つぎに、第１図（ｂ）に示すように気体潤滑面８を平面
状に形成、例えば研削、研磨、エツチングなどじ九後に
、浮動形ヘッド１′ヲ加工治具２′から解放すれば前述
の内部応力により、第１図（ｃ）のように気体潤滑面８
″が凸状になる。このようにして、所要の凸形状及び平
坦度を持つ浮動形ヘッドが製造できるが、浮動形ヘッド
の材質にも多種多様なもの、例えば各種フェライト、ガ
ラス、セラミックスなどかあシ、なかには線膨張係数の
大きなものもある。このとき、第１図１（ａ）に示す気
体潤滑面形成予定面６と逆面７の温度差を微かにしなけ
れば、平坦度５ｏｏ（４の規格内に納まらないことも考
えられる。このため、第１図（ａ）に示すような冷却フ
ァン４を用いず、第３図に示すように電気ヒータ１２，
１３を利用して気体潤滑面形成予定面６の温度が逆面７
より微かだけ低くなるように制御したまま、浮動形ヘッ
ド１を加工治具２に固定するのも一案である。Next, as shown in FIG. 1(b), after forming the gas lubricating surface 8 into a planar shape, for example by grinding, polishing, etching, etc., the floating head 1' is released from the processing jig 2'. Due to the internal stress of the gas lubricated surface 8 as shown in FIG.
'' becomes convex. In this way, a floating head with the required convex shape and flatness can be manufactured, but the floating head can be made of a wide variety of materials, such as various ferrites, glasses, ceramics, etc. Some reeds have a large coefficient of linear expansion.At this time, unless the temperature difference between the surface 6 where the gas lubricated surface is to be formed and the opposite surface 7 shown in FIG. Therefore, instead of using the cooling fan 4 as shown in FIG. 1(a), the electric heater 12, as shown in FIG.
13, the temperature of the surface 6 where the gas lubricated surface is to be formed is set to the opposite surface 7.
One idea is to fix the floating head 1 to the processing jig 2 while controlling it so that it is slightly lower.
また、第４図に示すように重シ１ｏを利用して。Also, as shown in FIG. 4, by using a heavy shield 1o.
浮動形ヘッド１の内部応力の度合を調節するのも良い。It is also good to adjust the degree of internal stress in the floating head 1.
尚、本発明によれば１本実施例では磁気ディスクに用い
られる浮動形ヘッドについて説明したが、その他の形式
で用いられるもの、例えば光記録。According to the present invention, in this embodiment, a floating head used for a magnetic disk has been described, but it can also be used for other formats, such as optical recording.
光磁気記録などについても、ＯＢＢ方式である浮動形ヘ
ッドであれば同等の効果を有する。また、浮動形ヘッド
の形状、材質、加工治具に固定する几めの固定剤の種類
、その塗布方法によらないのは言うまでもない。Regarding magneto-optical recording, an OBB type floating head has the same effect. It goes without saying that this does not depend on the shape and material of the floating head, the type of fixative used to fix it to the processing jig, or the method of applying it.
以上述べたように本発明によれば、気体潤滑面形成前に
加工治具に浮動形ヘッドを固定する際に、気体潤滑面形
成予定面側の温度をその逆面より低く保持して固定し、
気体潤滑面形成予定面とその逆面とに生じる熱膨張差に
起因する内部応力を内在させ、つぎに気体潤滑面金はぼ
平面状に形成した後に浮動形ヘッドを加工治具から解放
することにより、凸状の気体潤滑面を持つ浮動形ヘッド
を意図的に、また安定的に製造することができる。As described above, according to the present invention, when fixing the floating head to the processing jig before forming the gas-lubricated surface, the temperature of the surface on which the gas-lubricated surface is to be formed is maintained lower than that of the opposite side. ,
Incorporating internal stress due to the difference in thermal expansion between the surface on which the gas-lubricated surface is to be formed and the opposite surface, and then releasing the floating head from the processing jig after forming the gas-lubricated surface into a nearly flat surface. Accordingly, a floating head having a convex gas-lubricated surface can be intentionally and stably manufactured.
また、気体潤滑面の平坦度の制御も容易であシ、ａＳＳ
方式に適した浮動形ヘッドを得ることかできる。In addition, it is easy to control the flatness of the gas lubricated surface.
It is possible to obtain a floating head suitable for the method.
第１図（ａ） （ｂ） （ｃ）は本発明の浮動形ヘッド
の製造方法の一実施例を示す製造工程図。
第２図はａＳＳ試験をしたときの気体潤滑面の形状の違
いによる浮動形ヘッドの摩擦係数の変化を表わすグラフ
。
第６図は本発明の浮動形ヘッドの製造方法の一実施例を
示す側面図。
第４図は本発明の浮動形ヘッドの製造方法の一実施例を
示す側面図。
１、＋／、Ｐ′・・・浮動形ヘッド
２ 、２′ ・・・加工治具
３．３′・・・固定剤
４・・・冷却用ファン
５・・・冷却風
６・・・気体潤滑面形成予定面
７・・・逆面
８・・・気体潤滑面
９・・・断熱板
１０・・・重シ
１１・・・台
１２．１３・・・電気ヒータ
２１・・・記録媒体損傷点
以 上
出願人 セイコーエプソン株式会社
浮動形へ・・７Ｆ：゛の製置工程図
４６７ 図
Ｃ，ＳＳ回数０．、ＪＪる乃−（イ糸数のグツフ名２図FIGS. 1(a), 1(b), and 1(c) are manufacturing process diagrams showing an embodiment of the method for manufacturing a floating head of the present invention. Figure 2 is a graph showing changes in the coefficient of friction of the floating head due to differences in the shape of the gas lubricated surface during the aSS test. FIG. 6 is a side view showing an embodiment of the method for manufacturing a floating head according to the present invention. FIG. 4 is a side view showing an embodiment of the method for manufacturing a floating head according to the present invention. 1, +/, P'...Floating head 2, 2'...Processing jig 3.3'...Fixing agent 4...Cooling fan 5...Cooling air 6...Gas Lubricating surface planned surface 7... Reverse surface 8... Gas lubricating surface 9... Heat insulating plate 10... Heavy board 11... Stand 12.13... Electric heater 21... Recording medium damage Applicant Seiko Epson Co., Ltd. Floating type... 7F: Manufacturing process diagram 467 Diagram C, SS number 0. , JJ Runo (2 numbers of Gutsuf names)
Claims (1)
プ方式で用いられる浮動形ヘッドの製造方法において、
気体潤滑面形成前に気体潤滑面形成予定面側の温度をそ
の逆面より低くして、熱軟化性の固定剤により前記浮動
形ヘッドを加工治具に固定する第一工程、前記気体潤滑
面をほぼ平面状に形成する第二工程、前記浮動形ヘッド
を前記加工治具より解放する第三工程を含むことを特徴
とする浮動形ヘッドの製造方法。In a method for manufacturing a floating head used in a contact start-stop method as a part of a recording device,
A first step of fixing the floating head to a processing jig with a heat-softening fixing agent by lowering the temperature of the surface on which the gas-lubricated surface is to be formed before forming the gas-lubricated surface than the opposite side; the gas-lubricated surface; A method for manufacturing a floating head, comprising a second step of forming the floating head into a substantially planar shape, and a third step of releasing the floating head from the processing jig.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1045886A JPS62166934A (en) | 1986-01-21 | 1986-01-21 | Manufacturing method of floating head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1045886A JPS62166934A (en) | 1986-01-21 | 1986-01-21 | Manufacturing method of floating head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62166934A true JPS62166934A (en) | 1987-07-23 |
Family
ID=11750694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1045886A Pending JPS62166934A (en) | 1986-01-21 | 1986-01-21 | Manufacturing method of floating head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62166934A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0520826A (en) * | 1991-07-09 | 1993-01-29 | Alps Electric Co Ltd | Magnetic head and manufacture of magnetic head |
| US5508863A (en) * | 1991-04-10 | 1996-04-16 | Hitachi Metals, Ltd. | Flying-type magnetic head comprising a slider/gimbal connection which suppresses slider height differences |
| US5687042A (en) * | 1994-11-03 | 1997-11-11 | International Business Machines Corporation | Slider having shifted crown peak for reduced fly height sensitivity |
-
1986
- 1986-01-21 JP JP1045886A patent/JPS62166934A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5508863A (en) * | 1991-04-10 | 1996-04-16 | Hitachi Metals, Ltd. | Flying-type magnetic head comprising a slider/gimbal connection which suppresses slider height differences |
| JPH0520826A (en) * | 1991-07-09 | 1993-01-29 | Alps Electric Co Ltd | Magnetic head and manufacture of magnetic head |
| US5687042A (en) * | 1994-11-03 | 1997-11-11 | International Business Machines Corporation | Slider having shifted crown peak for reduced fly height sensitivity |
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