JPS61173852A - Lens polishing device - Google Patents
Lens polishing deviceInfo
- Publication number
- JPS61173852A JPS61173852A JP1295885A JP1295885A JPS61173852A JP S61173852 A JPS61173852 A JP S61173852A JP 1295885 A JP1295885 A JP 1295885A JP 1295885 A JP1295885 A JP 1295885A JP S61173852 A JPS61173852 A JP S61173852A
- Authority
- JP
- Japan
- Prior art keywords
- lens
- polishing
- center
- rotating
- movable plate
- 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
Landscapes
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明はカメラ、顕微鏡等のレンズの研摩装置に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a polishing device for lenses of cameras, microscopes, etc.
従来の技術
近年レンズ研摩において、レンズ研摩精度を精密に確保
するために、研摩皿へレンズを押しつける力が常にレン
ズの球芯を通る方向にかかる方法である球芯研摩方法が
多く用いられている。従来の球芯研摩機は第４図のに示
すように、レンズ１を保持するホルダー２とホルダー２
を介してレンズ１を研摩皿３に押しあてて加圧する加圧
ピン、加圧バネ６と加圧ピン４をスライド自在に保持し
てレンズ１へ球芯揺動運動を与える揺動レバー６
′とから構成されていた。ここで７はプーリ８ベルト
９回転シャフト１ｏを介して研摩皿３を回転させるため
のモーターである。Conventional technology In recent years, in lens polishing, in order to ensure precise lens polishing accuracy, the ball core polishing method, in which the force of pressing the lens against the polishing plate is always applied in the direction passing through the lens's spherical core, has been widely used. . As shown in Fig. 4, a conventional ball core polisher has a holder 2 for holding a lens 1 and a holder 2 for holding a lens 1.
a pressure pin that presses the lens 1 against the polishing plate 3 via a swing lever 6 that slidably holds the pressure spring 6 and the pressure pin 4 and provides a spherical swing motion to the lens 1;
' It was composed of. Here, 7 is a motor for rotating the polishing plate 3 via a pulley 8, a belt 9, and a rotating shaft 1o.
以上のように構成された球芯研摩機について以下その動
作について説明する。レンズ１はホルダー２を介して加
圧ピン４、加圧バネ５によって、回転する研摩皿３へ押
しつけられ、固定された点Ａ、（すなわちレンズ１０球
芯点）を揺動中心点として揺動する揺動レバー６により
矢印Ｂ方向に往復揺動運動を与えられる。レンズ１はこ
のようにして数回から数十回研摩皿３へ加圧された状態
で球芯揺動運動を与えられることにより鏡面に研摩され
る。The operation of the ball core polisher constructed as above will be explained below. The lens 1 is pressed against the rotating polishing plate 3 via the holder 2 by a pressure pin 4 and a pressure spring 5, and is swung around a fixed point A (that is, the spherical center point of the lens 10) as the center of oscillation. A reciprocating rocking motion is applied in the direction of arrow B by the rocking lever 6. In this way, the lens 1 is polished to a mirror surface by being subjected to a spherical swinging motion while being pressed against the polishing plate 3 several times to several tens of times.
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、揺動中ＩＣ，一点
が研摩皿に対して、固定であるために■レンズの曲率半
径Ｒが■のレンズ、すなわち平面レンズ力；研摩できな
い。また曲率半径Ｒが大きなレンズの球芯研筆をする場
合揺動中心点と研摩皿の底面との距離Ｈが非常に大きく
なり、（なぜならＨ＝Ｒ）さらにはレンズを研摩皿に加
圧する加圧ピンを長くする必要があり研摩装置全体が大
きくなり装置構成が困難なため■曲率半径Ｈの小さなレ
ンズに限定される。また生産品種の切替時にはレンズの
曲率半径Ｈに合わせるために研摩皿を上下方向に移動さ
せて揺動中心点と研摩皿底面との距離ＨをＨ＝Ｈになる
ように微細に調整する必要があるために■品種切替時間
が多く必要とする等の問題点を有していた。Problems to be Solved by the Invention However, in the above configuration, since one point of the IC is fixed with respect to the polishing plate during rocking, the radius of curvature R of the lens is ■, that is, the plane lens force; Cannot be polished. In addition, when using a spherical core polishing brush for a lens with a large radius of curvature R, the distance H between the center of oscillation and the bottom of the polishing plate becomes very large (because H = R). It is necessary to lengthen the pressing pin, which increases the size of the polishing device as a whole and makes the device configuration difficult. (2) It is limited to lenses with a small radius of curvature H. Also, when changing production types, it is necessary to move the polishing plate vertically to match the radius of curvature H of the lens and finely adjust the distance H between the center of swing and the bottom of the polishing plate so that H = H. Because of this, there were problems such as requiring a lot of time to switch types.
本発明は上記問題点に鑑み、球芯研摩でありながら曲率
半径の大きなレンズであっても小さなレンズであっても
曲率半径に制限されることがなく、生産品種の切替を簡
素化し、安定した品質のレンズ研摩装置を提供するもの
である。In view of the above problems, the present invention uses spherical core polishing, but is not limited by the radius of curvature, whether the lens has a large radius of curvature or a small lens, simplifies the changeover of production types, and provides stable We provide quality lens polishing equipment.
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レンズ研摩装置は
、水平方向に移動可能な水平移動板と水平移動板を往復
運動せしめる駆動源と水平移動板に直交し回転自在に軸
支され先端にレンズを保持し加圧する保持加圧部を有し
た回転体と水平移動板に取り付けられ回転体を回転運動
せしめる駆動源とで構成されたものである。Means for Solving the Problems In order to solve the above problems, the lens polishing apparatus of the present invention includes a horizontally movable plate that is movable in the horizontal direction, a drive source that causes the horizontally movable plate to reciprocate, and a drive source that is orthogonal to the horizontally movable plate. It is composed of a rotating body that is rotatably supported and has a holding and pressing part at its tip that holds and pressurizes the lens, and a drive source that is attached to a horizontally movable plate and rotates the rotating body.
作 用
本発明は上記した構成によって従来構成の問題点の根源
である、固定された揺動中心を、本発明ではレンズ加圧
ピンの回転中心を水平移動板へ回転自在に軸支し回転中
心の水平運動と回転運動に一ヨリ研摩皿へレンズを押し
つけ、加圧力が常にレンズの球芯点を通るように回転中
心の水平移動量Ｘとレンズノコ１．ｌ圧ピンの（ロ）転
中心となる回転体の回し回転中心の水平移動量にあわせ
て回転体を回転させることにより、レンズの曲率半径が
どんなものでも、演算データを変更するだけで（研摩皿
の交換は必要）レンズの球芯研摩を可能とし、そうする
ことによって従来構成の問題点である■平面レンズの研
摩不可能、■曲率半径が小さなレンズに限定される。■
品種切替時間が多く必要。という問題を解消したもので
ある。Effect The present invention has the above-described configuration, and the fixed center of rotation, which is the root of the problem of the conventional structure, can be fixed by pivoting the center of rotation of the lens pressure pin on the horizontally movable plate in a rotatable manner. The lens is pressed against the polishing plate along with the horizontal and rotational movements of the lens, and the horizontal movement X of the center of rotation and the lens saw 1. By rotating the rotating body in accordance with the horizontal movement of the rotating center of the rotating body, which is the center of (b) rotation of the pressure pin, no matter what the radius of curvature of the lens, you can simply change the calculation data (polishing). (It is necessary to replace the plate) It is possible to polish the spherical center of the lens, thereby solving the problems of the conventional structure: (1) the inability to polish plane lenses; and (2) limited to lenses with a small radius of curvature. ■
Requires a lot of time to change types. This problem has been solved.
実施例
以下本発明の実施例のレンズ研摩装置について図面を参
照しながら説明する。第１図は本発明の主要部である研
摩ヘッド部であり１は被加工物であるレンズでありレン
ズホルダー１１に保持され加圧ピン１２によって研摩皿
３へ加圧される。こコテ１４ｉｄ：レンズホルダー１１
、加圧ピン１２、ハウジング１３によって空圧シリンダ
ーを構成したレンズ保持加圧ユニットである。レンズ保
持加圧ユニット１４はアーム１６に取りつけられアーム
１５は上下方向にスライド可能（図示せず）に回転軸１
６に支持されている。１７は回転軸１６を回転自在に軸
支するベアリングハウジングであり水平移動板１８に固
定され水平移動案内レール１９に支持されている。水平
移動案内レール１９は本体フレーム２ｏに固されてる。EXAMPLE Hereinafter, a lens polishing apparatus according to an example of the present invention will be described with reference to the drawings. FIG. 1 shows a polishing head portion which is the main part of the present invention. Reference numeral 1 denotes a lens as a workpiece, which is held in a lens holder 11 and pressed against a polishing plate 3 by a pressure pin 12. Kote 14id: Lens holder 11
, a pressure pin 12, and a housing 13 constitute a pneumatic cylinder. The lens holding pressure unit 14 is attached to an arm 16, and the arm 15 is slidable up and down (not shown) on the rotation axis 1.
6 is supported. A bearing housing 17 rotatably supports the rotating shaft 16, and is fixed to a horizontal movement plate 18 and supported by a horizontal movement guide rail 19. The horizontal movement guide rail 19 is fixed to the main body frame 2o.
２１はモータであり、水平移動板１８に取りつけられ先
端にレンズ保持加圧ユニット１４を有したアーム１５を
扇形のギヤ２２．ギヤ２３、減速機２４を介して回転さ
せる駆動源である。また２５はモータであり、減速機２
６．ギヤ２７．水平移動板１８に固定されたラック２８
を介して水平移動板１８を駆動する駆動源である。ここ
で２９はモータブラケットであり本体フレーム２ｏに固
定されている。Reference numeral 21 denotes a motor, which is attached to the horizontal moving plate 18 and connects the arm 15, which has the lens holding and pressing unit 14 at its tip, with a fan-shaped gear 22. It is a drive source that rotates via a gear 23 and a speed reducer 24. Further, 25 is a motor, and the reducer 2
6. Gear 27. Rack 28 fixed to horizontal moving plate 18
This is a drive source that drives the horizontally moving plate 18 via the horizontally moving plate 18. Here, 29 is a motor bracket and is fixed to the main body frame 2o.
３ｏはモーターでありプーリ３１．ベルト３２゜ギヤ３
３９回転軸３４を介して研摩皿３を回転させる。回転軸
３４はハウジング３５ａ、／＼ウジング３５ｂに回転自
在に軸支されている。３６はノ１ウジング３５ａ、ノ１
ウジングｓｓｂを支持するフ゛ラケットであり本体フレ
ーム２ｏに固定されている。ここで３７はレンズ研摩面
に使用する研摩液を受けるタンクである。3o is a motor and a pulley 31. Belt 32° Gear 3
39 The polishing plate 3 is rotated via the rotating shaft 34. The rotating shaft 34 is rotatably supported by the housing 35a and housing 35b. 36 is No. 1 Uzing 35a, No. 1
This is a racket that supports the housing ssb and is fixed to the main body frame 2o. Here, 37 is a tank for receiving the polishing liquid used for polishing the lens surface.
以上のように構成されたレンズ研摩装置について、以下
第１図、第２図、第３図を用いてその動作を説明する。The operation of the lens polishing apparatus configured as described above will be explained below with reference to FIGS. 1, 2, and 3.
レンズ１は空圧シリンダーを内部に構成した保持加圧ユ
ニット１４の下端に位置するホルダー１１で保持され加
圧ピン１２によって高速回転する研摩皿へ加圧される。The lens 1 is held by a holder 11 located at the lower end of a holding and pressing unit 14 having a pneumatic cylinder inside, and is pressed by a pressing pin 12 against a polishing plate rotating at high speed.
この時レンズ１はモータ２１およびモータ２６によりレ
ンズ１の球芯点Ｃをあたかも揺動中心とするように往復
揺動運動をあたえられる。（凸レンズの時第２図参照、
凹レンズの時第３図参照）なぜならレンズ保持加圧ユニ
ット１４はアーム１５を介してモータ２１の駆動により
回転運動を与えられる回転軸１６に固定され、回転軸１
６はモータ２５に駆動により水平運動する水平移動板１
８に取りつけられおり回転軸１６の回転中心りは線Ｅを
往復運動し、この１時回転軸１６は回転中心りの移動量
Ｘに対してθ（−〇＝動量に合わせてレンズ保持加圧ユ
ニット１４を傾むけることにより常に加圧力Ｆはレンズ
の球芯点Ｃを通る軸になる。At this time, the lens 1 is given a reciprocating rocking motion by the motors 21 and 26 so that the spherical center point C of the lens 1 is the center of rocking. (For convex lenses, see Figure 2.
(For a concave lens, see FIG. 3) This is because the lens holding pressure unit 14 is fixed to a rotating shaft 16 which is given rotational motion by the drive of a motor 21 via an arm 15.
6 is a horizontally moving plate 1 that moves horizontally by being driven by a motor 25;
8, the rotation axis of the rotation shaft 16 reciprocates along the line E, and the rotation axis 16 moves θ (-〇 = lens holding pressure according to the amount of movement) with respect to the amount of movement X around the rotation center. By tilting the unit 14, the pressing force F always becomes an axis passing through the spherical center point C of the lens.
以上のように本実施例によれば、水平方向に移動可能な
水平移動板と水平移動板を往復移動せしめる駆動源と水
平移動板に直交し回転自在に軸支され先端にレンズを保
持し加圧する保持加圧部を有した回転体と水平移動板に
取り付けられ回転体を回動運動せしめる駆動源とを設け
ることによりレンズ精度よく研摩する手段である球芯研
摩を実現することができる。なお実施例において水平移
動板１８の駆動方法をギヤ２７、ラック２８としたが工
作機械等の送り手段として多く用いられる送りネジとナ
ンドの累合による水平駆動手段を用いてもよい。As described above, according to this embodiment, the horizontally movable plate is movable in the horizontal direction, the drive source for reciprocating the horizontally movable plate, the horizontally movable plate is perpendicular to the horizontally movable plate, the lens is rotatably supported, and the lens is held at the tip. Ball core polishing, which is a means of polishing lenses with high precision, can be achieved by providing a rotary body having a holding and pressurizing part that presses the lens and a drive source that is attached to the horizontally moving plate and rotates the rotary body. In the embodiment, the horizontally movable plate 18 is driven by the gear 27 and the rack 28, but a combination of a feed screw and a NAND, which is often used as a feed means for machine tools, may also be used.
発明の効果
以上のように本発明では、レンズを精度良く研摩する上
で不可欠である球芯研摩方法を、水平方向に移動可能な
水平移動板と水平移動板を往復運動せしめる駆動源と水
平移動板に直交し回転自在に軸支され先端にレンズを保
持し加圧する保持加圧部を有した回転体と水平移動板に
取り付けられ回転体を回転運動せしめる。駆動源を設け
て水平移動板の移動量、すなわち保持加圧部の回転中心
の移動量にあわせて回転体を回転させることにより常に
レンズの球芯点を通る軸上に加圧力が加わるようにした
ものである。Effects of the Invention As described above, in the present invention, the spherical core polishing method, which is indispensable for polishing lenses with high precision, is achieved by combining a horizontally movable plate that is movable in the horizontal direction, a drive source that causes the horizontally movable plate to reciprocate, and a horizontally movable plate. The rotating body is rotatably supported perpendicular to the plate and has a holding and pressing part at its tip that holds and pressurizes the lens, and the rotating body is attached to the horizontally movable plate to rotate the rotating body. By providing a drive source and rotating the rotating body in accordance with the amount of movement of the horizontal moving plate, that is, the amount of movement of the rotation center of the holding and pressure unit, the pressing force is always applied on the axis passing through the spherical center point of the lens. This is what I did.
そうしたことによる効果は、■平面レンズの研摩が可能
となる。（平面レンズの時は回転体を回転させないで水
平方向の移動だけとしそのだめに加圧力はレンズの中心
軸と平行でありレンズ中心に加わり、球面レンズでいつ
球芯研摩と同様な効果が得られる。） ■曲率半径の大
小に制限されることなく球芯研摩ができる。■品種切替
時にレンズの曲率半径のデータを入れ替えるたけで球芯
研摩ができるため短時間で品種切替ができる生産性に大
きく寄与する。さらに■機械的調整をすることなくレン
ズの振り幅すなわち水平方向の移動量をデータ変更によ
シ簡単に行なえるためにレンズ研摩の条件だしが簡単に
行なえる。The effects of this are: (1) Polishing of flat lenses becomes possible. (In the case of a flat lens, the rotating body is not rotated but only moved in the horizontal direction, and the pressurizing force is parallel to the central axis of the lens and applied to the center of the lens. With a spherical lens, the same effect as spherical core polishing can be obtained. ) ■ Ball core polishing is possible without being limited by the size of the radius of curvature. ■When changing the product type, the ball core can be polished by simply replacing the data on the radius of curvature of the lens, which greatly contributes to productivity as the product can be changed in a short time. Furthermore, the lens amplitude, that is, the amount of horizontal movement can be easily changed by changing data without mechanical adjustment, making it easy to set the conditions for lens polishing.
第１図は本発明の一実施例における側断面図、第２図は
凸レンズ研摩における研摩皿及び保持加圧ユニット先端
の概略断面図、第３図は凹レンズ研摩における研摩皿及
び保持加圧ユニ、７）先端の概略断面図、第４図は従来
の球芯研摩装置の概略断面図である。
１・・・・・・レンズ、２・・・・・・ホルダー、３・
・・・・・研摩皿、４・・・・・・加圧ピン、６・・・
・・・揺動レバー、１１・・・・・・レンズホルダー、
１２・・・・・・加圧ピン、１４・・・・・・保持加圧
ユニット、１５・・・・・・アーム、１６・・・・・・
回転軸、１８・・・・・・水平移動板、２１・・・・・
・モータ、２５・・・・・・モータ。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名第１
図
１１−−−レンス゛−Ｌルダゝ
１１−−オＩＩＩＥピン
匹−一−ラ朱７子１シ！１ニット
ｔｃ−−−１！亨ζ寧さ
ｔｇ −−，４平４を動石（
ｙｒ、ｒｓ、ｔｏ−−−そ−デー
２ｔ、Ｐｊ、２７−・−ギ′ヤ′
！δ・・−ラ、２
第２図
（−ｍ−しソス１゜
３−−一研厚ユ
１１−ｍ−しンズ゛′小ルター
ト＝噌しツス゛
４＝−Ｊ７Ｔ１７ｆｅ’ン
５−−一力１１迂〕ｆ年
６−−−丁を重カレ１１″−
７−ｕ−タFig. 1 is a side sectional view of an embodiment of the present invention, Fig. 2 is a schematic sectional view of the tip of a polishing plate and holding pressure unit in convex lens polishing, and Fig. 3 is a schematic sectional view of the polishing plate and holding pressure unit in concave lens polishing. 7) Schematic sectional view of the tip. FIG. 4 is a schematic sectional view of a conventional ball core polishing device. 1...Lens, 2...Holder, 3.
... Polishing plate, 4 ... Pressure pin, 6 ...
... Swing lever, 11... Lens holder,
12... Pressure pin, 14... Holding pressure unit, 15... Arm, 16...
Rotating shaft, 18... Horizontal moving plate, 21...
・Motor, 25...Motor. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 11 --- Lens - L Ruda 11 - O IIIE pins - 1 - La Zhu 7ko 1 Shi! 1 knit tc---1!亨ζNeisa tg --, 4 Hei 4 is a moving stone (yr, rs, to---So-day 2t, Pj, 27-...-gear'! δ...-ra, 2 Fig. 2 ( -m-shisosu 1゜3--Ikken Atsushiyu 11-m-shins゛'small route = -J7T17fe'n5--Ichiriki 11 turn〕f year 6--D 11″-7-u-ta
Claims (1)
、凹状あるいは凸状で高速回転せしめられる研摩皿に面
接触させ前記レンズを研摩皿にそって往復移動させてレ
ンズ表面の研摩を行なう研摩機において、水平方向に移
動可能な水平移動板と水平移動板を往復運動せしめる駆
動源と水平移動板に直交し回転自在に軸支され先端にレ
ンズを保持し加圧する保持加圧部を有した回転体と水平
移動板に取り付けられ回転体を回転運動せしめる駆動源
とから構成されるレンズ研摩装置。A spherical convex or concave lens is pressurized onto the spherical core axis, brought into surface contact with a concave or convex polishing plate that rotates at high speed, and the lens is moved back and forth along the polishing plate to polish the lens surface. A polishing machine has a horizontally movable plate that is movable in the horizontal direction, a drive source that causes the horizontally movable plate to reciprocate, and a holding and pressurizing part that is rotatably supported perpendicular to the horizontally movable plate and that holds and pressurizes a lens at its tip. A lens polishing device comprising a rotary body and a drive source attached to a horizontally moving plate to rotate the rotary body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1295885A JPH0622797B2 (en) | 1985-01-25 | 1985-01-25 | Lens polishing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1295885A JPH0622797B2 (en) | 1985-01-25 | 1985-01-25 | Lens polishing equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61173852A true JPS61173852A (en) | 1986-08-05 |
| JPH0622797B2 JPH0622797B2 (en) | 1994-03-30 |
Family
ID=11819767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1295885A Expired - Lifetime JPH0622797B2 (en) | 1985-01-25 | 1985-01-25 | Lens polishing equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0622797B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01216762A (en) * | 1988-02-23 | 1989-08-30 | Toshiji Kurobe | Device for polishing curved face |
| JPH02109672A (en) * | 1988-10-20 | 1990-04-23 | Olympus Optical Co Ltd | Device and method for grinding and polishing |
| JPH0590477A (en) * | 1991-09-30 | 1993-04-09 | Mitsubishi Electric Corp | Semiconductor integrated circuit device |
| US5482495A (en) * | 1993-09-29 | 1996-01-09 | Matsushita Electric Industrial Co., Ltd. | Apparatus for polishing a spherical surface |
| US10549321B2 (en) * | 2014-12-08 | 2020-02-04 | Novartis Ag | Method and device for cleaning deposited material from a molding surface of a mold for forming ophthalmic lenses |
-
1985
- 1985-01-25 JP JP1295885A patent/JPH0622797B2/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01216762A (en) * | 1988-02-23 | 1989-08-30 | Toshiji Kurobe | Device for polishing curved face |
| JPH02109672A (en) * | 1988-10-20 | 1990-04-23 | Olympus Optical Co Ltd | Device and method for grinding and polishing |
| JPH0659613B2 (en) * | 1988-10-20 | 1994-08-10 | オリンパス光学工業株式会社 | Grinding and polishing device and grinding and polishing method |
| JPH0590477A (en) * | 1991-09-30 | 1993-04-09 | Mitsubishi Electric Corp | Semiconductor integrated circuit device |
| US5482495A (en) * | 1993-09-29 | 1996-01-09 | Matsushita Electric Industrial Co., Ltd. | Apparatus for polishing a spherical surface |
| US10549321B2 (en) * | 2014-12-08 | 2020-02-04 | Novartis Ag | Method and device for cleaning deposited material from a molding surface of a mold for forming ophthalmic lenses |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0622797B2 (en) | 1994-03-30 |
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