JPS6328553A - Nonspherical member polishing device - Google Patents
Nonspherical member polishing deviceInfo
- Publication number
- JPS6328553A JPS6328553A JP16784686A JP16784686A JPS6328553A JP S6328553 A JPS6328553 A JP S6328553A JP 16784686 A JP16784686 A JP 16784686A JP 16784686 A JP16784686 A JP 16784686A JP S6328553 A JPS6328553 A JP S6328553A
- Authority
- JP
- Japan
- Prior art keywords
- polishing
- plate
- nonspherical
- aspherical
- curved surface
- 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
Links
- 238000005498 polishing Methods 0.000 title claims abstract description 89
- 239000013013 elastic material Substances 0.000 abstract description 3
- 239000011162 core material Substances 0.000 abstract description 2
- 229920001971 elastomer Polymers 0.000 abstract description 2
- 229920002635 polyurethane Polymers 0.000 abstract description 2
- 239000004814 polyurethane Substances 0.000 abstract description 2
- 238000004804 winding Methods 0.000 abstract 1
- 238000007517 polishing process Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 239000000758 substrate Substances 0.000 description 3
- 230000001680 brushing effect Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔発明の目的〕
（Ｍ梁上の利用分野）
この発明は、回転対称の非球面レンズなど、非球面部材
のみがき装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Application on M Beams) This invention relates to a polishing device for aspherical members such as rotationally symmetrical aspherical lenses.
（従来の技術）
シュミットカメラの補正板あるいはカラー受像管の露光
に使用される補正レンズは、回転対称の非球面で構成さ
れている。(Prior Art) A correction plate of a Schmidt camera or a correction lens used for exposure of a color picture tube is composed of a rotationally symmetrical aspherical surface.
従来、かかる非球面部材のみがき加工は、第３図に示す
みがき装置でおこなわれていた。すなわち、基台■上に
駆動装置により回転駆動される被研磨部材保持板■が設
けられ、この保持板■に対して水平方向に位置調整可能
に設けられた支持部■にみかき皿支持軸■を取付け、こ
れを駆動装置■により回転駆動するようにした装置が用
いられている。また、上記支持軸■に取付けられるみが
き皿０としては、第４図に示すように、基板■にウレタ
ンフオームなどの弾性体（８）を介してポリシャ（９）
を取付けて研磨バット（１０）としたものが用いられて
いる。Conventionally, polishing of such an aspherical member has been carried out using a polishing apparatus shown in FIG. In other words, a polishing member holding plate (■) which is rotationally driven by a drive device is provided on a base (■), and a polishing plate support shaft (2) is mounted on a support part (2) whose position can be adjusted in the horizontal direction with respect to this holding plate (■). A device is used in which a drive unit (2) is attached and rotated by a drive unit (3). Furthermore, as shown in FIG. 4, the polishing plate 0 attached to the support shaft (2) has a polisher (9) attached to the substrate (2) via an elastic body (8) such as urethane foam.
A polishing bat (10) with a polishing bat (10) is used.
非球面の研磨は、第５図に示すように、たとえばカラー
受像管の露光に用いられる補正レンズ（１２）を、研磨
しようとする曲面を上向きにして上記保持板■に取付け
、この補正レンズ（１２）に対して、支持軸■に取付け
られたみがき皿（Ｑを適宜偏心かつ押圧して１弾性体（
８）の変形によりポリシャ（９）を曲面になじませ、研
磨剤を供給しながら保持板■およびみがき皿（ｅを回転
駆動することによりおこなわれる。To polish an aspherical surface, as shown in FIG. 12), press the polishing plate (Q) attached to the support shaft
This is done by making the polisher (9) conform to the curved surface by deforming the polisher (8), and rotating the holding plate (2) and the polishing plate (e) while supplying the polishing agent.
ところで、このみがき加工は、研磨圧力、弾性体（８）
の材質、研磨剤、被研磨部材の材質、みがき皿（へ）の
回転数、保持板■の回転数などが同一ならば、研磨量は
研磨時間に比例するということを前提とした加工方法で
ある。By the way, this polishing process uses polishing pressure, elastic body (8)
This is a processing method based on the premise that the amount of polishing is proportional to the polishing time if the material, polishing agent, material of the workpiece to be polished, rotation speed of the polishing plate, rotation speed of the holding plate, etc. are the same. be.
しかし、上記みがき皿０では、研磨圧力を一定に保つこ
とは、弾性体（ハ）の劣化、レンズ曲面へのなじみなど
の点で困難であり、そのため、正確な曲面が得られず、
また、曲面精度を向上させようとする場合は、やわらか
い弾性体を用い、かつ研磨圧力を低くして長時間かけて
加工する必要があった費
（発明が解決しようとする問題点）
上記のように非球面部材をみがき加工する場合、従来の
みがき皿では、弾性体の劣化、曲面に対するなじみなど
の点で、正確な曲面が得られず、また、曲面精度を向上
させるために、やわらかい弾性体を用い研磨圧力を低く
した場合は、加工に時間がかかるなどの問題点がある。However, in the above-mentioned polishing plate 0, it is difficult to maintain a constant polishing pressure due to deterioration of the elastic body (c) and conformity to the curved surface of the lens, so that an accurate curved surface cannot be obtained.
In addition, when trying to improve the precision of curved surfaces, it is necessary to use a soft elastic material and process at low polishing pressure over a long period of time (a problem that the invention aims to solve). When polishing an aspherical member, it is difficult to obtain an accurate curved surface using conventional polishing pans due to deterioration of the elastic body and conformability to the curved surface. When using a low polishing pressure, there are problems such as processing time.
この発明は、かかる問題点を解決するためになされたも
のであり、非球面部材の曲面を短時間かつ高精度にみが
くことができるみがき皿を構成することを目的としてい
る。The present invention was made to solve these problems, and an object of the present invention is to construct a polishing tray that can polish the curved surface of an aspherical member in a short time and with high precision.
（問題点を解決するための手段）
非球面部材の曲面にみがき皿を押圧し、かつ非球面部材
とみがき皿とを相対的に動かしながらその曲面をみがく
非球面部材のみがき装置において、みがき皿を、複数個
各別の研磨パッドを基体に取着して構成し、かつ各研磨
パッドをポリシャで被覆された弾性体で構成した。(Means for solving the problem) In an aspherical member polishing device that presses a polishing plate against the curved surface of an aspherical member and polishes the curved surface while moving the aspherical member and the polishing plate relatively, the polishing plate is used. was constructed by attaching a plurality of separate polishing pads to a base, and each polishing pad was constructed of an elastic body coated with a polisher.
（作用）
弾性体をポリシャで被覆した研磨パッドを複数個各別に
基体に取付けてみがき皿を構成すると、個々の研磨パッ
ドが独立に非球面部材の曲面に均一な研磨圧力を与える
ようになり、短時間かつ高精度のみがき加工が可能とな
る。(Function) When a polishing plate is constructed by attaching a plurality of polishing pads each made of an elastic body coated with a polisher to a base, each polishing pad can independently apply uniform polishing pressure to the curved surface of the aspherical member. High-precision polishing becomes possible in a short time.
（実施例）
以下、図面を参照してこの発明を実施例に基づいて説明
する。(Example) Hereinafter, the present invention will be described based on an example with reference to the drawings.
第１図にこの発明の一実施例に係るみがき皿を示す。こ
のみがき皿を取付けてみがき加工をおこなうみがき装置
は、第３図に示した従来装置と同一であるので、その説
明を省略する。FIG. 1 shows a polishing plate according to an embodiment of the present invention. The polishing device to which this polishing plate is attached and performs the polishing process is the same as the conventional device shown in FIG. 3, so its explanation will be omitted.
この例のみがき皿は、第３図に示したみがき装置のみが
き皿支持軸（０に取付けられる中心軸（２０）を有する
剛性の高い円板状の基板■と、この基板ωに直立する如
く取着された複数個各別の研磨パッド（２１）とからな
り、各研磨パッド（２１）は、ポリウレタン、ゴムなど
からなる柱状の弾性体（２２）を心材として、これをポ
リシャ（２３）で被覆または巻付けるなどして構成した
ものである。The polishing plate in this example consists of a highly rigid disc-shaped substrate (2) having a central axis (20) attached to the polishing device support shaft (0) shown in FIG. Each polishing pad (21) has a columnar elastic body (22) made of polyurethane, rubber, etc. as a core material, and is polished with a polisher (23). It is constructed by covering or wrapping.
上記複数個の研磨パッド（２１）は、隣接研磨パッドと
接触する如く密に取付けてよく、また図面に示したよう
に互いに間隔をおいて粗に取付けてもよい。The plurality of polishing pads (21) may be closely attached so as to be in contact with adjacent polishing pads, or may be loosely attached at intervals as shown in the drawings.
みがき加工は、第２図に示すように、みがき装置の保持
板■に非球面部材、たとえばカラー受像管の露光に用い
られる補正レンズ（１２）を、研磨しようとする曲面を
上向きにして取付け、一方、上記みがき皿（２５）を支
持軸■に取付け、かつ上記補正レンズ（１２）に対して
適宜偏心かつ押圧して、研磨剤を供給しながらこれら保
持板■およびみがき皿を回転駆動することによりおこな
われる。In the polishing process, as shown in Fig. 2, an aspherical member, such as a correction lens (12) used for exposure of a color picture tube, is attached to the holding plate of the polishing device with the curved surface to be polished facing upward. On the other hand, the polishing plate (25) is attached to the support shaft (2), and is appropriately eccentric and pressed against the correction lens (12) to rotate the holding plate (2) and the polishing plate while supplying the abrasive. This is done by
ところで、このみがき加工において、上記のように構成
されたみがき皿は、複数個各別の研磨パッド（２１）が
それぞれ独立に補正レンズ（１２）に対する押圧力を伝
達し、補正レンズ（１２）の曲面にならって変形するの
で、その全接触面に一定の研磨圧力を与え、補正レンズ
（１２）の全面を均一にみがくことができる。すなわち
、従来のみがき皿では、補正レンズの全接触面に一定の
研磨圧力を与えることが困難であり、特に外周のはね上
り部内側に研磨不足の部分ができやすく、また研磨圧力
を高くすると、レンズの曲面精度を低下させるなどの問
題点があったが、このみがき皿では、補正レンズ（１２
）の全接触面に一定の圧力を加えて均一にみがくことが
できるので、弾性体（２２）の許容範囲内で押圧力を高
めることにより、研磨時間を短縮してかつ高精度にみが
くことができる。By the way, in this polishing process, in the polishing plate configured as described above, a plurality of separate polishing pads (21) each independently transmit a pressing force to the correction lens (12), and the polishing plate is configured as described above. Since it deforms to follow the curved surface, a constant polishing pressure can be applied to all contact surfaces, and the entire surface of the correction lens (12) can be uniformly polished. In other words, with conventional polishing plates, it is difficult to apply a constant polishing pressure to all contact surfaces of the correction lens, and insufficient polishing tends to occur, especially on the inside of the raised part of the outer periphery, and when the polishing pressure is increased, , there were problems such as reducing the precision of the curved surface of the lens, but with this polishing plate, the correction lens (12
) can be uniformly polished by applying a constant pressure to all contact surfaces, so by increasing the pressing force within the allowable range of the elastic body (22), polishing time can be shortened and polishing can be performed with high precision. can.
すなわち、従来のみがき皿で士数時間要した補正レンズ
のみがき加工を、このみがき皿では、その約１７４の４
時間で、所望の精度を得ることができた。In other words, polishing a correction lens that took several hours with a conventional polishing plate can be done in approximately 174 hours.
In time, we were able to obtain the desired accuracy.
非球面部材の曲面にみがき皿を押圧し、かつ非球面部材
とみがき皿とを相対的に動かしながらその曲面をみがく
非球面部材のみがき装置において、そのみがき皿を、複
数個各別の研磨パッドを基体に取着し、かつその各研磨
パッドをポリシャで被覆された弾性体で構成し、個々の
研磨パッドが独立に非球面部材の曲面に均一な研磨圧力
を与えるようにしたので、短時間にかつ高精度に非球面
部材の曲面をみがくことができるようになった。In an aspherical member polishing device that presses a polishing plate against the curved surface of an aspherical member and polishes the curved surface while moving the aspherical member and the polishing plate relative to each other, the polishing plate is polished using a plurality of separate polishing pads. is attached to the base, and each polishing pad is made of an elastic body coated with a polisher, so that each polishing pad independently applies uniform polishing pressure to the curved surface of the aspherical member, so that it can be polished in a short time. It is now possible to polish the curved surface of an aspherical member with high precision.
第１図はこの発明のみがき装置に用いられるみがき皿の
構成を示す図、第２図はそのみがき加工説明図、第３図
は非球面部材のみがき装置の構成を示す斜視図、第４図
は従来のみがき皿の構成を示す図、第５図はそのみがき
加工説明図である。
■・・・非球面部材保持板 に）・・・みがき皿支持軸
■・・・駆動装置 ■・・・基板（１２）・・
・補正レンズ （２１）・・研磨パッド（２２）・
・・弾性体 （２３）・・・ポリシャ（２５）
・・・みがき皿FIG. 1 is a diagram showing the configuration of a polishing plate used in the polishing device of the present invention, FIG. 2 is an explanatory diagram of the polishing process, FIG. 3 is a perspective view showing the configuration of the polishing device for aspherical members, and FIG. 4 5 is a diagram showing the structure of a conventional polishing plate, and FIG. 5 is an explanatory diagram of the polishing process. ■...Aspherical member holding plate)...Brushing plate support shaft■...Drive device ■...Substrate (12)...
・Correction lens (21)・・Polishing pad (22)・
...Elastic body (23) ...Polisher (25)
...Brushing plate
Claims (2)
面部材とみがき皿とを相対的に動かしながら上記曲面を
みがく非球面部材のみがき装置において、 上記みがき皿が基体と、この基体に取着された複数個各
別の研磨パッドとで構成され、かつ各研磨パッドがポリ
シャで被覆された弾性体からなることを特徴とする非球
面部材のみがき装置。(1) In an aspherical member polishing device that presses a polishing plate against the curved surface of an aspherical member and polishes the curved surface while moving the aspherical member and the polishing plate relatively, the polishing plate is attached to a base and the base is 1. A polishing device for an aspherical member, comprising a plurality of separate polishing pads attached to the surface, each polishing pad being made of an elastic body coated with a polisher.
する特許請求の範囲第１項記載の非球面部材のみがき装
置。(2) The aspherical member polishing device according to claim 1, wherein the polishing pad is formed in a columnar shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61167846A JPH07115284B2 (en) | 1986-07-18 | 1986-07-18 | Polishing device for aspherical members |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61167846A JPH07115284B2 (en) | 1986-07-18 | 1986-07-18 | Polishing device for aspherical members |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6328553A true JPS6328553A (en) | 1988-02-06 |
| JPH07115284B2 JPH07115284B2 (en) | 1995-12-13 |
Family
ID=15857169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61167846A Expired - Lifetime JPH07115284B2 (en) | 1986-07-18 | 1986-07-18 | Polishing device for aspherical members |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07115284B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4039700A1 (en) * | 1989-12-26 | 1991-06-27 | Riso Kagaku Corp | ROTATION SCREEN PRINTING MACHINE WITH A NETWORK FORM CYLINDER |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54120795U (en) * | 1978-02-13 | 1979-08-23 | ||
| JPS6013792A (en) * | 1983-06-20 | 1985-01-24 | ジ−・デイ・サ−ル・アンド・コンパニ− | Triazolopyrimidine compound |
-
1986
- 1986-07-18 JP JP61167846A patent/JPH07115284B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54120795U (en) * | 1978-02-13 | 1979-08-23 | ||
| JPS6013792A (en) * | 1983-06-20 | 1985-01-24 | ジ−・デイ・サ−ル・アンド・コンパニ− | Triazolopyrimidine compound |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4039700A1 (en) * | 1989-12-26 | 1991-06-27 | Riso Kagaku Corp | ROTATION SCREEN PRINTING MACHINE WITH A NETWORK FORM CYLINDER |
| DE4039700C2 (en) * | 1989-12-26 | 1995-07-27 | Riso Kagaku Corp | Rotary screen printing machine with a mesh cylinder |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07115284B2 (en) | 1995-12-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |