JPH03221362A - Toric face polishing device - Google Patents
Toric face polishing deviceInfo
- Publication number
- JPH03221362A JPH03221362A JP1127390A JP1127390A JPH03221362A JP H03221362 A JPH03221362 A JP H03221362A JP 1127390 A JP1127390 A JP 1127390A JP 1127390 A JP1127390 A JP 1127390A JP H03221362 A JPH03221362 A JP H03221362A
- Authority
- JP
- Japan
- Prior art keywords
- workpiece
- wheel
- polisher
- tool
- polishing tool
- 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
- 238000005498 polishing Methods 0.000 title claims abstract description 25
- 239000003082 abrasive agent Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 abstract description 3
- 229910000420 cerium oxide Inorganic materials 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract description 2
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 241000635279 Dorcatragus megalotis Species 0.000 description 1
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、特殊レンズ等におけるトーリック面、即ち直
交する方向の曲率が互いに異なっている曲面の研磨装置
に関するものである。。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an apparatus for polishing a toric surface of a special lens or the like, that is, a curved surface having different curvatures in orthogonal directions. .
従来の技術
以下、従来のトーリック面研磨装置について第３図（ａ
）、 （ｂ）を参照して説明する。同図において、１１
はトーリック面を有するレンズ（以下、トーリックレン
ズと称す〉に加工すべき被加工物であって、水平軸心回
りに回転自在に支持されたホイール１２の外周部に取付
固定されている。創成される子線半径ｒの曲率を有する
回転研磨工具１４の回転軸をホイール１２の回転軸と同
一平面上で、かつ平面に垂直な軸心回りに旋回すること
によりトーリックレンズを加工している。Conventional technology The conventional toric surface polishing device is shown in Fig. 3 (a).
) and (b). In the same figure, 11
is a workpiece to be processed into a lens having a toric surface (hereinafter referred to as a toric lens), and is fixed and attached to the outer periphery of a wheel 12 that is rotatably supported around a horizontal axis. The toric lens is machined by rotating the rotating shaft of the rotary polishing tool 14, which has a curvature of a sagittal radius r, on the same plane as the rotating axis of the wheel 12, and around an axis perpendicular to the plane.
発明が解決しようとする課題
トーリックレンズは、角棒状あるいは近似的な曲率半径
の球面に予め研削加工された被加工物１１より製作して
いるが、このような従来の研磨装置では、回転研磨工具
１４の回転運動方向とホイール１２の回転運動方向が一
致している。従って高精度に研削加工されていても、母
線半径方向Ｒの研削痕が残り、すなわち子線半径方向ｒ
の形状精度は、ａ線半径方向Ｒの形状精度と比較しても
悪くなる。このレンズを仕上げ加工するには、非常に長
時間かかると共に、子線半径方向ｒが高精度にならない
という問題があった。Problems to be Solved by the Invention Toric lenses are manufactured from a workpiece 11 that has been pre-ground into a rectangular rod shape or a spherical surface with an approximate radius of curvature. The direction of rotation of wheel 14 and the direction of rotation of wheel 12 match. Therefore, even if the grinding process is performed with high precision, grinding marks in the generatrix radial direction R remain, that is, in the sagittal radial direction r.
The shape accuracy is worse than the shape accuracy in the a-line radial direction R. There was a problem in that it took a very long time to finish the lens, and the radial direction r of the sagittal wire could not be highly accurate.
そこで本発明は、この課題を解決するため、高速かつ高
精度にトーリック面を仕上げることができる研磨装置を
提供するものである。Therefore, in order to solve this problem, the present invention provides a polishing apparatus that can finish a toric surface at high speed and with high precision.
課題を解決するための手段
第１の発明は、上記目的を達成するため、被加工物を被
加工面の有する第１の曲率面に沿って移動させる被加工
物保持体と、被加工物に対し被加工面の有する第２の曲
率面に沿って研磨材を移動角
させる研磨具とを備荒トーリック面研磨装置において、
研磨具を被加工物保持体の移動方向と異なる方向に回転
させるように構成したことを特徴とする。Means for Solving the Problems In order to achieve the above object, a first invention provides a workpiece holder for moving a workpiece along a first curvature surface of a workpiece surface; On the other hand, in a Beira toric surface polishing apparatus, a polishing tool that moves an abrasive material along a second curvature surface of the surface to be processed is used.
The present invention is characterized in that the polishing tool is configured to rotate in a direction different from the moving direction of the workpiece holder.
第２の発明は上記構成において研磨材がカップ形状を有
することを特徴とする。A second invention is characterized in that the abrasive material in the above structure has a cup shape.
第３の発明は、上記構成において研磨材が内圧を有する
弾性体からなることを特徴とする。A third invention is characterized in that, in the above structure, the abrasive material is made of an elastic body having internal pressure.
作 用
第１の発明によれば研磨材を母線半径方向と異なる方向
に回転させることができるのて、母線半径方向の形状精
度に対する子線半径方向の形状精度を向上させることが
できる。According to the first invention, since the abrasive can be rotated in a direction different from the radial direction of the generatrix, it is possible to improve the shape accuracy in the radial direction of the sagittal wire relative to the shape accuracy in the radial direction of the generatrix.
また第２の発明によれば、回転研磨材がカップ形状にな
っているために、回転研磨工具の運動方向が被加工物を
取付けたホイールの回転方向と直交することができるた
めに、子線半径方向の高精度化が図れる。Further, according to the second invention, since the rotary abrasive material has a cup shape, the direction of movement of the rotary abrasive tool can be orthogonal to the rotation direction of the wheel to which the workpiece is attached, so that the High accuracy in the radial direction can be achieved.
更に第３の発明によれば、回転研磨材が内圧を有した弾
性体であるために、被加工物と接触している部分の圧力
を一定にすることができ、したがって研削で作られた形
状を維持したまま仕上げることができる。Furthermore, according to the third invention, since the rotating abrasive material is an elastic body with internal pressure, the pressure in the part that is in contact with the workpiece can be kept constant, so that the shape made by grinding can be kept constant. It can be finished while maintaining the .
実 施 例
本発明の一実施例におけるトーリック面研磨装置につい
て以下図面を参照しながら説明する。Embodiment A toric surface polishing apparatus according to an embodiment of the present invention will be described below with reference to the drawings.
第１図において、１はトーリックレンズに加工すべき被
加工物であって、前工程にて所定の曲率半径に仕上げら
れている。この被加工物１は、回転自在に支持されたホ
イール２の外周部に取付固定されている。ホイール２は
、１０〜２００ｒ。In FIG. 1, reference numeral 1 denotes a workpiece to be processed into a toric lens, which has been finished to a predetermined radius of curvature in a previous process. This workpiece 1 is attached and fixed to the outer periphery of a rotatably supported wheel 2. Wheel 2 is 10-200r.
ｐ、ｍ程度の回転数で回転駆動される。この被加工面に
対向してポリラシャ−３を取付けた回転研磨工具４を配
設し、酸化セリウムと水からなる研磨液を供給しながら
１００〜２００ ｒ ｐｍで回転させて加工する。It is driven to rotate at a rotation speed of about p and m. A rotary polishing tool 4 equipped with a polyrusher 3 is disposed facing the surface to be machined, and the polishing tool 4 is rotated at 100 to 200 rpm while supplying a polishing liquid consisting of cerium oxide and water.
第２図に回転研磨工具４の断面図を示す。FIG. 2 shows a sectional view of the rotary polishing tool 4.
ポリラシャ−３は弾性を有し、工具４の内部よりエアー
等によって与えられる内圧によりカップ形状に弾性変形
している。The poly lasher 3 has elasticity and is elastically deformed into a cup shape by internal pressure applied from inside the tool 4 by air or the like.
本実施例ではポリラシャ−３がカップ形状をしているた
めに、ポリラシャ−３の回転によって与えられる運動方
向は、ホイール２の運動方向と直交して一致しない。In this embodiment, since the poly lasher 3 has a cup shape, the direction of movement given by the rotation of the poly lasher 3 does not coincide orthogonally with the direction of movement of the wheel 2.
また、本実施例ではポリラシャ−３が内圧を与えられて
変形しているために被加工面と接触しているポリラシャ
−３の圧力は常に内圧と等しく一定になり、被加工面を
均一に研磨することができる。In addition, in this example, since the poly lasher 3 is deformed by applying internal pressure, the pressure of the poly lasher 3 in contact with the workpiece surface is always constant and equal to the internal pressure, and the workpiece surface is uniformly polished. can do.
発明の効果
第１の発明によれば、子線半径方向の精度を向上させる
ことができる。Effects of the Invention According to the first invention, accuracy in the radial direction of the sagittal wire can be improved.
また第２の発明によれば、回転研磨工具の運動方向を被
加工物の運動方向に合わせないので、トーリック面を高
速に仕上げることができる。Further, according to the second invention, since the direction of movement of the rotary polishing tool is not aligned with the direction of movement of the workpiece, a toric surface can be finished at high speed.
更に第３の発明によれば、回転研磨材が内圧を与えた弾
性体であるため、トーリック面を高精度に仕上げること
ができる。Furthermore, according to the third invention, since the rotating abrasive material is an elastic body to which internal pressure is applied, the toric surface can be finished with high precision.
第１図（ａ）、 （ｂ）は本発明の一実施例におけるト
ート−リック面研磨装置の断面図である。
１・・・・・・被加工物、２・・・・・・ホイール、３
・・・・・・ポリラシャ−，４・・・・・・回転研磨工
具。FIGS. 1(a) and 1(b) are sectional views of a tautric surface polishing apparatus according to an embodiment of the present invention. 1...Workpiece, 2...Wheel, 3
...Polyrusher, 4...Rotary polishing tool.
Claims (3)
て移動させる被加工物保持体と、被加工物に対し被加工
面の有する第２の曲率面に沿って研磨材を移動させる研
磨具とを備えたトーリック面研磨装置において、研磨具
を被加工物保持体の移動方向と異なる方向に回転させる
ように構成したことを特徴とするトーリック面研磨装置
。(1) A workpiece holder that moves the workpiece along a first curvature surface of the workpiece surface, and an abrasive material that moves the workpiece along the second curvature surface of the workpiece surface. What is claimed is: 1. A toric surface polishing device comprising a moving polishing tool, characterized in that the polishing tool is configured to rotate in a direction different from the moving direction of a workpiece holder.
とする請求項１記載のトーリック面研磨装置。(2) The toric surface polishing apparatus according to claim 1, wherein the rotating abrasive tool has a cup shape.
とを特徴とする請求項１記載のトーリック面研磨装置。(3) The toric surface polishing apparatus according to claim 1, wherein the rotating abrasive tool is made of an elastic body having internal pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1127390A JPH03221362A (en) | 1990-01-19 | 1990-01-19 | Toric face polishing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1127390A JPH03221362A (en) | 1990-01-19 | 1990-01-19 | Toric face polishing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03221362A true JPH03221362A (en) | 1991-09-30 |
Family
ID=11773373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1127390A Pending JPH03221362A (en) | 1990-01-19 | 1990-01-19 | Toric face polishing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03221362A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6514133B1 (en) * | 1999-07-02 | 2003-02-04 | Essilor International (Compagnie Generale D'optique) | Tool for smoothing optical surfaces, in particular for ophthalmic lenses |
| DE10031057B4 (en) * | 2000-06-26 | 2005-04-07 | Optotech Optikmaschinen Gmbh | Method and apparatus for corrective fine polishing of pre-processed optical lenses and mirrors |
| EP3126091B1 (en) | 2014-04-03 | 2018-01-24 | Carl Zeiss Vision International GmbH | Polishing tool as well as device and method for form-defect-optimized polishing of spectacle lens surfaces and casting mould shells for spectacle lens production |
-
1990
- 1990-01-19 JP JP1127390A patent/JPH03221362A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6514133B1 (en) * | 1999-07-02 | 2003-02-04 | Essilor International (Compagnie Generale D'optique) | Tool for smoothing optical surfaces, in particular for ophthalmic lenses |
| DE10031057B4 (en) * | 2000-06-26 | 2005-04-07 | Optotech Optikmaschinen Gmbh | Method and apparatus for corrective fine polishing of pre-processed optical lenses and mirrors |
| EP3126091B1 (en) | 2014-04-03 | 2018-01-24 | Carl Zeiss Vision International GmbH | Polishing tool as well as device and method for form-defect-optimized polishing of spectacle lens surfaces and casting mould shells for spectacle lens production |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4768308A (en) | Universal lens polishing tool, polishing apparatus and method of polishing | |
| US3816997A (en) | Apparatus for simultaneously performing rough and fine grinding operations | |
| JPS58181556A (en) | Machine for processing lens | |
| US4907373A (en) | Toric finer-polisher | |
| JPH03221362A (en) | Toric face polishing device | |
| GB1179818A (en) | Method and apparatus for grinding and polishing aspheric surfaces of revolution | |
| US5085007A (en) | Toric lens fining apparatus | |
| JPH01274960A (en) | Lens processing method | |
| JP3631281B2 (en) | Lens groove processing equipment | |
| JPH04240071A (en) | Method and device for polishing ring-shaped grinder element | |
| JPS6234763A (en) | Polishing method for ferrule having convex tip | |
| JP2574278B2 (en) | Toric surface processing equipment | |
| JPH05245767A (en) | Polishing attachment | |
| JPH0632887B2 (en) | Chamfering method | |
| JP3452619B2 (en) | Spherical surface grinding method | |
| JP2001038592A (en) | Polishing method and polishing device | |
| JP4136283B2 (en) | Polishing equipment | |
| JPH10277909A (en) | Polishing tool | |
| JPH0957606A (en) | Polishing device | |
| JPS585138B2 (en) | Chiyoushiagehouhouto Souchi | |
| JPS618271A (en) | Curved-face polishing device | |
| JPS63260754A (en) | Chamfering device | |
| JP2504874Y2 (en) | Forming tool holder for grindstone forming equipment | |
| JPH07195275A (en) | End edge part grinding-polishing method of grinding wheel and glass plate and device thereof | |
| SU542626A1 (en) | The method of processing aspherical surfaces of parts |