JPH05104430A - Electro-chemical machining for concave lens - Google Patents
Electro-chemical machining for concave lensInfo
- Publication number
- JPH05104430A JPH05104430A JP29243191A JP29243191A JPH05104430A JP H05104430 A JPH05104430 A JP H05104430A JP 29243191 A JP29243191 A JP 29243191A JP 29243191 A JP29243191 A JP 29243191A JP H05104430 A JPH05104430 A JP H05104430A
- Authority
- JP
- Japan
- Prior art keywords
- lens
- conductive
- holder
- spherical
- 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.)
- Withdrawn
Links
Landscapes
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ガラスやセラミックス
等の硬脆材料の凹球面創成加工方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concave spherical surface forming method for hard and brittle materials such as glass and ceramics.
【０００２】[0002]
【従来の技術】従来、凹球面創成加工方法として以下の
様な発明が開示されている。例えば、実公昭６０−３５
５８３号公報記載の発明においては、鉛直方向のラップ
圧が一定となる様に構成することともに、被加工物に接
するラップ体に複数の盲穴を穿設し、該盲穴にラップ剤
保持体を充填する。ラップ体を揺動すると、その揺動に
伴いラップ剤保持体によってラップ剤を被加工物とラッ
プ体との間に均一に供給する発明である。2. Description of the Related Art Conventionally, the following inventions have been disclosed as a concave spherical surface generating / processing method. For example, Jitsuko Sho 60-35
In the invention described in Japanese Patent No. 583, the wrap pressure in the vertical direction is configured to be constant, and a plurality of blind holes are formed in the lap body in contact with the workpiece, and the wrap agent holder is provided in the blind holes. To fill. When the wrapping body is swung, the wrapping agent holding body uniformly supplies the wrapping agent between the workpiece and the wrapping body along with the swinging.
【０００３】[0003]
【発明が解決しようとする課題】しかるに、前記従来技
術には以下の様な欠点がある。すなわち、加工を行って
いる内にラップ体が偏磨耗する。この偏磨耗状態で加工
すると、加工条件が変化し、レンズ加工面の所望面精度
を確保することができない。However, the above-mentioned prior art has the following drawbacks. That is, the lap body is unevenly worn during processing. If processing is performed in this uneven wear state, the processing conditions change, and it is not possible to secure the desired surface accuracy of the lens processed surface.
【０００４】また、砥石を新品の状態で使用する場合
は、加工を開始する前に目立て（ドレッシング）し、砥
粒を砥石加工面の表面に露出させる必要がある。砥粒と
してダイアモンドを使用する砥石の場合は、特に使用前
のドレッシングが必要であった。以上のような加工前に
行う新品状態の砥石のドレッシング工程は、レンズの加
工工程とは別に行っていたため、作業時間が長くかかっ
ていた。Further, when the grindstone is used in a new state, it is necessary to dress it (dressing) before starting the processing so that the abrasive grains are exposed on the surface of the grindstone processing surface. In the case of a grindstone using diamond as an abrasive grain, dressing before use was especially required. Since the dressing process of the new grindstone performed before the processing as described above is performed separately from the lens processing process, it takes a long working time.
【０００５】因って本発明は、前記従来技術における欠
点に鑑みて開発されたもので、偏磨耗のない真球の研磨
工具により精度の良い凹レンズが得られるとともに、新
品状態の砥石のドレッシングとレンズ加工とを同一工程
で行うことにより作業時間を短縮できる凹レンズ電解加
工方法の提供を目的とする。Therefore, the present invention has been developed in view of the above-mentioned drawbacks of the prior art, and a precise concave lens can be obtained by a true spherical polishing tool without uneven wear, and dressing of a new grindstone is possible. An object of the present invention is to provide a concave lens electrolytic processing method capable of reducing working time by performing lens processing in the same step.
【０００６】[0006]
【課題を解決するための手段および作用】本発明は、弱
電性クーラントを供給しつつ上軸の導電性保持具に陰極
を下軸に陽極をそれぞれ印加して電解加工を行うにあた
り、前記導電性保持具に保持された導電性球状工具を下
軸の上端平面部へ転動自在に当接して目立てた後、下軸
の上端凹部に嵌合保持された被加工物の回転中心軸と導
電性球状工具の球心とを合致させ、導電性球状工具を転
動自在に回転させつつ被加工物を加工する方法である。Means and Action for Solving the Problems According to the present invention, in conducting electrolytic processing by applying a cathode to a conductive holder of an upper shaft and an anode to a lower shaft of the conductive holder while supplying a weakly conductive coolant, the above-mentioned conductive The conductive spherical tool held by the holder is rotatably brought into contact with the upper end flat part of the lower shaft to make it stand out, and then fitted into the upper end recess of the lower shaft This is a method of processing a work piece while matching the spherical center of the spherical tool and rotatably rotating the conductive spherical tool.
【０００７】本発明で用いる装置は、回転軸中心に中空
孔を有する上軸の回転軸の下端部に固定され、回転軸中
心には前記中空孔に貫通する孔と、前記孔に貫通し、そ
の下端部に球状の導電性球状工具を非接触で保持するた
めの工具保持孔とを有する導電性ホルダと、上端が平面
である外周縁を有し、回転自在である導電性のレンズ素
材保持具と、前記導電性ホルダに陰極、前記レンズ素材
保持具に陽極を印加するための電源と、弱電性クーラン
トを供給する供給装置と、上軸もしくはレンズ素材保持
具を導電性球状工具の球心中心で揺動させるための揺動
機構と、上軸もしくはレンズ素材保持具を、レンズ素材
およびレンズ素材保持具の上端平面部分に平行で、レン
ズ素材保持具の回転中心軸と導電性球状工具の球心とが
一致する方向に上軸もしくはレンズ素材保持具を移動さ
せる機構と、導電性球状工具のレンズ素材に対する切り
込み量に応じて、上軸もしくはレンズ素材保持具を上下
動させる機構とから構成されている。The device used in the present invention is fixed to the lower end of the rotary shaft of the upper shaft having a hollow hole at the center of the rotary shaft, and the hole passing through the hollow hole and the hole at the center of the rotary shaft, A conductive holder having a tool holding hole for holding a spherical conductive spherical tool at its lower end in a non-contact manner, and an electrically conductive lens material holding rotatable outer peripheral edge having a flat upper end. Tool, a power source for applying a cathode to the conductive holder and an anode to the lens material holder, a supply device for supplying a weakly conductive coolant, and an upper shaft or a lens material holder with a spherical center of a conductive spherical tool. The swinging mechanism for swinging at the center, the upper shaft or the lens material holder is parallel to the lens material and the upper end flat portion of the lens material holder, and the rotation center axis of the lens material holder and the conductive spherical tool Up in the direction that matches the ball center Or a mechanism for moving the lens blank holder, according to the amount of cut for the lens material of the conductive spherical tool, and a mechanism for vertically moving the upper shaft or lens blank retainer.
【０００８】以上の構成から成る装置を用いての凹レン
ズ電解加工方法は、上軸の下端部に備えられた導電性ホ
ルダの工具保持孔に、レンズ素材保持具の上端平面部
（外周縁上）にて導電性球状工具を配置する。上軸およ
びレンズ素材保持具を回転させ、上軸もしくはレンズ素
材保持具に揺動を与える。このとき、上軸とレンズ素材
保持具の回転は互いに反対方向である。同時に、上軸の
中空孔より導電性球状工具に流体を吹き付けるととも
に、弱電性クーラントを導電性球状工具に供給し、導電
性ホルダに陰極をレンズ素材保持具に陰極を印加する。In the concave lens electrolytic machining method using the apparatus having the above structure, the tool holding hole of the conductive holder provided at the lower end of the upper shaft is fitted into the upper end flat portion (on the outer peripheral edge) of the lens material holder. Place a conductive spherical tool at. The upper shaft and the lens material holder are rotated to swing the upper shaft or the lens material holder. At this time, the rotation of the upper shaft and the lens material holder is opposite to each other. At the same time, a fluid is sprayed from the hollow hole of the upper shaft to the conductive spherical tool, a weakly conductive coolant is supplied to the conductive spherical tool, and a cathode is applied to the conductive holder and a cathode is applied to the lens material holder.
【０００９】以上のような上軸およびレンズ素材保持具
の回転と、上軸もしくはレンズ素材保持具の揺動と、上
軸に設けられた中空孔からの流体の加圧力との相互作用
により、導電性球状工具は自在転動する。従って、導電
性球状工具は導電性ホルダに印加された陰極、レンズ素
材保持具に印加された陽極、弱電性クーラントの作用に
より、真球の状態を維持したまま電解ドレッシングされ
る。電解ドレッシングにより、前記導電性球状工具の表
面に砥粒が露出し、加工が行える状態となったら、上軸
もしくはレンズ素材保持具をレンズ素材保持具の回転中
心軸と前記導電性球状工具の球心とが一致する方向に移
動させる。By the above-described interaction between the rotation of the upper shaft and the lens material holder, the swing of the upper shaft or the lens material holder, and the pressure of the fluid from the hollow hole provided in the upper shaft, The conductive spherical tool rolls freely. Therefore, the conductive spherical tool is electrolytically dressed while maintaining a true sphere state by the action of the cathode applied to the conductive holder, the anode applied to the lens material holder, and the weakly conductive coolant. By electrolytic dressing, the abrasive grains are exposed on the surface of the conductive spherical tool, and when processing is ready, the upper shaft or the lens material holder is attached to the rotation center axis of the lens material holder and the ball of the conductive spherical tool. Move it in the direction that matches your heart.
【００１０】前記レンズ素材保持具の回転中心軸と導電
性球状工具の球心とが一致した位置で、上軸もしくはレ
ンズ素材保持具の移動を停止させ、ガラス素材に切り込
みを与える。導電性球状工具は前述した作用により自在
転動を続けており、ガラス素材への切り込みは導電性球
状工具の自在転動によって行われる。そして、良好な状
態で自在転動が行われ、かつ導電性球状工具と導電性ホ
ルダとのクリアランスを一定に保つために、上軸および
レンズ素材保持具は導電性球状工具の切り込み量に応じ
て上下動する。At the position where the central axis of rotation of the lens material holder coincides with the spherical center of the conductive spherical tool, the movement of the upper shaft or the lens material holder is stopped to make a cut in the glass material. The electrically conductive spherical tool continues to freely roll due to the above-described action, and the incision in the glass material is made by the freely rolling of the electrically conductive spherical tool. Then, in order to perform free rolling in a good state, and to keep the clearance between the conductive spherical tool and the conductive holder constant, the upper shaft and the lens material holder are set according to the cut amount of the conductive spherical tool. Move up and down.
【００１１】[0011]
【実施例１】図１および図２は本実施例で用いる装置を
示し、図１は球状の導電性球状工具をレンズ加工前にド
レッシングしている状態の概略構成図、図２はレンズ加
工状態を示す概略構成図である。[Embodiment 1] FIGS. 1 and 2 show an apparatus used in the present embodiment. FIG. 1 is a schematic configuration diagram of a state in which a spherical conductive spherical tool is dressed before lens processing, and FIG. 2 is a lens processing state. It is a schematic block diagram which shows.
【００１２】図１に示すように、上回転軸１の下端には
銅製の導電性ホルダ２が取り付けられており、両部材
１，２には中心軸方向に流体を流入させるための中穴孔
８が貫通している。導電性ホルダ２の下部には、母地が
Ｆｅで砥粒がダイアモンドから成る導電性球状工具３を
非接触で保持するための工具保持孔１２が形成されてい
る。As shown in FIG. 1, a conductive holder 2 made of copper is attached to the lower end of the upper rotary shaft 1, and a hollow hole for allowing a fluid to flow in the central axes of both members 1 and 2. 8 penetrates. In the lower part of the conductive holder 2, a tool holding hole 12 for holding the conductive spherical tool 3 having a base material of Fe and abrasive grains of diamond in a non-contact manner is formed.
【００１３】上回転軸１の垂直下方には、レンズ６を保
持したときに、その上端平面部（外周縁上）がレンズ６
の上端平面部分と一致するように形成された導電性のレ
ンズ保持部材５が配置されており、レンズ保持部材５は
回転自在な下回転軸９上端に固設されている。上回転軸
１に固設された導電性ホルダ２とレンズ保持具５との間
隔は、導電性ホルダ２がレンズ保持部材５の上端平面部
に接触せず、前記工具保持孔１２に導電性球状工具３を
配置したとき、導電性球状工具３を導電性ホルダ２によ
って非接触で保持できる程度に保たれている。When the lens 6 is held vertically below the upper rotary shaft 1, the upper end flat portion (on the outer peripheral edge) of the lens 6 is held by the lens 6.
An electrically conductive lens holding member 5 is formed so as to match the upper end plane portion of the lens holding member 5, and the lens holding member 5 is fixed to the upper end of the rotatable lower rotation shaft 9. The distance between the conductive holder 2 fixed to the upper rotary shaft 1 and the lens holder 5 is such that the conductive holder 2 does not contact the upper end flat surface of the lens holding member 5 and the tool holding hole 12 has a conductive spherical shape. When the tool 3 is placed, the conductive spherical tool 3 is held by the conductive holder 2 in a non-contact manner.
【００１４】前記上回転軸１は、図示しない駆動装置に
より回転自在でかつ図示しない揺動装置により、導電性
ホルダ２に非接触で保持されている導電性球状工具３の
球心を中心に揺動可能に配置されている。また、上回転
軸１は図示しない移動機構により、レンズ６およびレン
ズ保持具５の上端平面部と平行で、レンズ保持具５の回
転中心軸と導電性球状工具３の球心とが一致する方向に
移動可能に配置されている。さらに、上回転軸１は図示
しない上下駆動装置によって、導電性球状工具３のレン
ズ６に対する切り込み量に応じた下降ができる様に構成
されている。The upper rotary shaft 1 swings around a spherical center of a conductive spherical tool 3 held in non-contact with the conductive holder 2 by a swinging device (not shown) which is rotatable by a driving device (not shown). It is arranged to be movable. Further, the upper rotation shaft 1 is parallel to the upper end flat portions of the lens 6 and the lens holder 5 by a moving mechanism (not shown), and the rotation center axis of the lens holder 5 and the spherical center of the conductive spherical tool 3 coincide with each other. It is arranged to be movable. Further, the upper rotary shaft 1 is configured to be able to descend according to the cut amount of the conductive spherical tool 3 with respect to the lens 6 by a vertical drive device (not shown).
【００１５】給電ブラシ１１を介して、導電性ホルダ２
には陰極が、レンズ保持部材５には陽極が電源７により
印加される。また、図示しないクーラント供給装置によ
り導電性球状工具３に弱電性クーラント４が供給され
る。The conductive holder 2 is connected via the power feeding brush 11.
Is applied to the lens holding member 5 by a power source 7. In addition, a weakly-conductive coolant 4 is supplied to the conductive spherical tool 3 by a coolant supply device (not shown).
【００１６】以上の構成から成る装置を用いて本実施例
では、円筒状のガラス素材から、φ１ｍｍの球状導電性
工具を使用し、前記ガラス素材に０．２ｍｍの切り込み
を与え，曲率半径０．４７５ｍｍの凹面を形成した。In the present embodiment using the apparatus having the above-mentioned configuration, a spherical glass conductive material having a diameter of 1 mm is used from a cylindrical glass material, a 0.2 mm cut is made in the glass material, and a radius of curvature of 0. A 475 mm concave surface was formed.
【００１７】使用する導電性球状砥石外径は、加工開始
前の砥石の電解ドレッシングによる外径の微小な変化
と、ガラス素材に対する球状砥石の切り込み量に関連し
た加工に際しての球状砥石の外径の変化とから、所望の
光学面の曲率が得られるように考慮して決定する。従っ
て、得たレンズの曲率および切り込み量によって、球状
工具の外径は異なり、それに応じて導電性ホルダ２の工
具保持孔１２の形状も変える必要がある。The outer diameter of the conductive spherical grindstone to be used is determined by a minute change in the outer diameter of the grindstone due to electrolytic dressing before the start of processing and the outer diameter of the spherical grindstone during processing related to the cut amount of the spherical grindstone with respect to the glass material. It is determined in consideration of the change so that the desired curvature of the optical surface can be obtained. Therefore, the outer diameter of the spherical tool differs depending on the obtained curvature and the cut amount of the lens, and it is necessary to change the shape of the tool holding hole 12 of the conductive holder 2 accordingly.
【００１８】本実施例にて使用した工具保持孔１２の内
面形状は、本実施例に於いて使用した球状工具（φ１ｍ
ｍ）の曲率半径である０．５ｍｍを超える曲率を有し、
かつ前記球状工具との間に、電解ドレッシングを良好に
行うことが可能な空巾である０．０５ｍｍ〜０．３ｍｍ
程度のクリアランスが設けられる程度の球面である。The inner surface shape of the tool holding hole 12 used in this embodiment is the spherical tool (φ1 m) used in this embodiment.
m) has a curvature greater than the radius of curvature of 0.5 mm,
Moreover, the space between the spherical tool and the spherical tool is 0.05 mm to 0.3 mm, which is a width that allows favorable electrolytic dressing.
It is a spherical surface with a certain clearance.
【００１９】加工方法は、まず上回転軸１の下端部に固
設された導電性ホルダ２の工具保持孔１２にレンズ保持
具５の上端平面部（外周縁上）にて、球状の導電性球状
工具３を配置する。上回転軸１およびレンズ保持具５を
回転させ、上回転軸１を角度θ揺動させる。このとき、
回転軸１とレンズ保持具５の回転は、互いに反対方向で
ある。同時に上回転軸１の中空孔８より導電性球状工具
３に流体を吹きつけるとともに、弱電性クーラント４を
導電性球状工具３に供給し、導電性ホルダ２に陰極をレ
ンズ保持具５に陽極を印加する。The processing method is as follows. First, in the tool holding hole 12 of the conductive holder 2 fixedly provided at the lower end of the upper rotary shaft 1, at the upper end flat surface (on the outer peripheral edge) of the lens holder 5, spherical conductivity is obtained. The spherical tool 3 is arranged. The upper rotary shaft 1 and the lens holder 5 are rotated to swing the upper rotary shaft 1 by an angle θ. At this time,
The rotation of the rotary shaft 1 and the lens holder 5 are opposite to each other. At the same time, a fluid is sprayed from the hollow hole 8 of the upper rotary shaft 1 to the conductive spherical tool 3, and the weakly conductive coolant 4 is supplied to the conductive spherical tool 3 so that the conductive holder 2 has a cathode and the lens holder 5 has an anode. Apply.
【００２０】以上のような回転軸１およびレンズ保持具
５の回転と、上回転軸１の揺動と、上回転軸１に設けら
れた中空孔８からの流体による導電性球状工具３への加
圧力との相互作用により、導電性球状工具３は自在転動
する。従って、導電性球状工具３は導電性ホルダ２に印
加された陰極と、レンズ保持具５に印加された陽極と、
弱電性クーラント４との作用により、真球の状態を維持
したまま電解ドレッシングされる。The rotation of the rotary shaft 1 and the lens holder 5 as described above, the swing of the upper rotary shaft 1, and the conductive spherical tool 3 by the fluid from the hollow hole 8 provided in the upper rotary shaft 1 The conductive spherical tool 3 rolls freely by the interaction with the pressing force. Therefore, the conductive spherical tool 3 has a cathode applied to the conductive holder 2 and an anode applied to the lens holder 5.
By the action with the weak electric coolant 4, electrolytic dressing is performed while maintaining the state of a true sphere.
【００２１】電解ドレッシングにより、導電性球状工具
３の表面に、ダイアモンド砥粒を露出させて加工が行え
る状態とした後、上回転軸１をレンズ保持具５の回転中
心軸と導電性球状工具３の球心とが一致する方向に移動
させる。レンズ保持具５の回転中心軸と球状工具３の球
心とが一致した位置で、上回転軸１の移動を停止させ、
レンズ６に切り込みを与える。After the diamond abrasive grains are exposed on the surface of the conductive spherical tool 3 by electrolytic dressing so as to be ready for processing, the upper rotary shaft 1 and the rotary central axis of the lens holder 5 and the conductive spherical tool 3 are used. Move in a direction that matches the ball center of. At the position where the central axis of rotation of the lens holder 5 and the spherical center of the spherical tool 3 coincide, the movement of the upper rotary shaft 1 is stopped,
A cut is given to the lens 6.
【００２２】本実施例によれば、上回転軸１を揺動しつ
つ上回転軸１と下回転軸９とをそれぞれ反対方向に回転
させ、上回転軸１の中空孔８からの流体の吐出と弱電性
クーラント４との吐出により導電性球状工具３が自在転
動し、良好な凹面が創成できる。According to this embodiment, the upper rotary shaft 1 and the lower rotary shaft 9 are rotated in opposite directions while swinging the upper rotary shaft 1, and the fluid is discharged from the hollow hole 8 of the upper rotary shaft 1. The conductive spherical tool 3 rolls freely by the discharge of the weak electric coolant 4 and a good concave surface can be created.
【００２３】[0023]
【実施例２】図３および図４は本実施例を示し、図３は
球状の導電性工具をレンズ加工前にドレッシングしてい
る状態の概略構成図、図４はレンズ加工状態を示す概略
構成図である。[Embodiment 2] FIGS. 3 and 4 show the present embodiment. FIG. 3 is a schematic configuration diagram showing a state where a spherical conductive tool is dressed before lens processing, and FIG. 4 is a schematic configuration showing a lens processing state. It is a figure.
【００２４】本実施例は、前記実施例１における上回転
軸１の揺動に代わり、下回転軸９をθ2 揺動させる様に
構成した点が異なり、他の構成は同一の構成から成るも
ので、同一番号を付して構成の説明を省略する。The present embodiment is different in that the lower rotary shaft 9 is made to oscillate by θ 2 instead of the upper rotary shaft 1 being oscillated in the first embodiment, and other configurations are the same. However, the same numbers are assigned and the description of the configuration is omitted.
【００２５】本実施例では、前記実施例１と同様な作用
であり、作用の説明を省略する。In this embodiment, the operation is the same as in the first embodiment, and the description of the operation is omitted.
【００２６】本実施例によれば、前記実施例１と同一な
効果が得られる。According to this embodiment, the same effect as that of the first embodiment can be obtained.
【００２７】[0027]
【発明の効果】以上説明した様に、本発明に係る凹レン
ズ電解加工方法によれば、新品状態の砥石のドレッシン
グとレンズ加工とを同一の工程で行い、かつ偏磨耗のな
い真球の研磨工具が自在転動することにより、目詰まり
のない高能率加工ができるとともに、良好な凹レンズが
創成できる。As described above, according to the concave lens electrolytic machining method according to the present invention, the dressing of a new grindstone and the lens machining are performed in the same step, and a true spherical polishing tool without uneven wear is provided. Freely rolling allows high-efficiency processing without clogging and good concave lens to be created.
【図１】実施例１を示す概略構成図である。FIG. 1 is a schematic configuration diagram illustrating a first embodiment.
【図２】実施例１を示す概略構成図である。FIG. 2 is a schematic configuration diagram showing a first embodiment.
【図３】実施例２を示す概略構成図である。FIG. 3 is a schematic configuration diagram showing a second embodiment.
【図４】実施例２を示す概略構成図である。FIG. 4 is a schematic configuration diagram showing a second embodiment.
【符号の説明】 １ 上回転軸 ２ 導電性ホルダ ３ 導電性球状工具 ４ 弱電性クーラント ５ レンズ保持具 ６ レンズ ７ 電源 ８ 中空孔 ９ 下回転軸 １１ 給電ブラシ １２ 工具保持孔[Explanation of symbols] 1 upper rotary shaft 2 conductive holder 3 conductive spherical tool 4 weakly conductive coolant 5 lens holder 6 lens 7 power supply 8 hollow hole 9 lower rotary shaft 11 power supply brush 12 tool holding hole
Claims (1)
電性保持具に陰極を下軸に陽極をそれぞれ印加して電解
加工を行うにあたり、前記導電性保持具に保持された導
電性球状工具を下軸の上端平面部へ転動自在に当接して
目立てた後、下軸の上端凹部に嵌合保持された被加工物
の回転中心軸と導電性球状工具の球心とを合致させ、導
電性球状工具を転動自在に回転させつつ被加工物を加工
することを特徴とする凹レンズ電解加工方法。1. A conductive spherical tool held by the conductive holder when performing electrolytic processing by applying a cathode to a conductive holder on an upper shaft and a cathode on a lower shaft while supplying a weakly conductive coolant. After rotatably abutting on the upper end flat portion of the lower shaft to stand out, match the rotation center axis of the workpiece fitted and held in the upper end recess of the lower shaft with the spherical center of the conductive spherical tool, A concave lens electrolytic machining method, characterized in that a workpiece is machined while a conductive spherical tool is rotatably rotated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29243191A JPH05104430A (en) | 1991-10-11 | 1991-10-11 | Electro-chemical machining for concave lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29243191A JPH05104430A (en) | 1991-10-11 | 1991-10-11 | Electro-chemical machining for concave lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05104430A true JPH05104430A (en) | 1993-04-27 |
Family
ID=17781705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29243191A Withdrawn JPH05104430A (en) | 1991-10-11 | 1991-10-11 | Electro-chemical machining for concave lens |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05104430A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010253593A (en) * | 2009-04-23 | 2010-11-11 | Institute Of Physical & Chemical Research | Recessed spherical surface grinding device and method |
| CN102284754A (en) * | 2011-07-29 | 2011-12-21 | 常州工学院 | electrochemical spherical composite polishing device |
-
1991
- 1991-10-11 JP JP29243191A patent/JPH05104430A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010253593A (en) * | 2009-04-23 | 2010-11-11 | Institute Of Physical & Chemical Research | Recessed spherical surface grinding device and method |
| CN102284754A (en) * | 2011-07-29 | 2011-12-21 | 常州工学院 | electrochemical spherical composite polishing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19990107 |