JP2567587B2 - Optical fiber connector end face polishing device - Google Patents
Optical fiber connector end face polishing deviceInfo
- Publication number
- JP2567587B2 JP2567587B2 JP61125259A JP12525986A JP2567587B2 JP 2567587 B2 JP2567587 B2 JP 2567587B2 JP 61125259 A JP61125259 A JP 61125259A JP 12525986 A JP12525986 A JP 12525986A JP 2567587 B2 JP2567587 B2 JP 2567587B2
- Authority
- JP
- Japan
- Prior art keywords
- grindstone
- ferrule
- optical fiber
- fiber connector
- center
- 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.)
- Expired - Fee Related
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
- B24B19/22—Single-purpose machines or devices for particular grinding operations not covered by any other main group characterised by a special design with respect to properties of the material of non-metallic articles to be ground
- B24B19/226—Single-purpose machines or devices for particular grinding operations not covered by any other main group characterised by a special design with respect to properties of the material of non-metallic articles to be ground of the ends of optical fibres
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Coupling Of Light Guides (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は光ファイバーコネクタの端面を凸球面状に研
摩すべく回転する凹球面の砥石面に対し、光ファイバー
コネクタ端面を当接させ、該コネクタを成すフェルール
の端面を凸球面状に研摩する装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention allows the end face of an optical fiber connector to be brought into contact with a grindstone surface of a concave spherical surface which is rotated to polish the end face of the optical fiber connector into a convex spherical surface. The present invention relates to a device for polishing the end surface of a ferrule to be formed into a convex spherical shape.
この種の従来技術としては第４図のようなものが知ら
れている。即ち、１は回転台であり、この回転台１はモ
ータに連動して回転すると共に、上端には上面に半径Ｒ
の凹球面12を形成した砥石３を支持している。また４は
円板状の治具であり、凹球面２に対向する部分の複数箇
所に先端端面を研摩すべきフェルールＦを固定する。し
かも治具４はその中央部に球軸受５で支持し、治具４が
球軸受５を中心に揺動するようにした研摩装置が使用さ
れている。As a conventional technique of this kind, one shown in FIG. 4 is known. That is, 1 is a turntable, which turns in conjunction with a motor and has a radius R on the upper surface at the upper end.
The whetstone 3 having the concave spherical surface 12 is supported. Reference numeral 4 denotes a disc-shaped jig for fixing the ferrules F, whose tip end faces are to be ground, at a plurality of positions facing the concave spherical surface 2. In addition, a polishing device is used in which the jig 4 is supported by a ball bearing 5 at the center thereof and the jig 4 swings around the ball bearing 5.
このような従来の装置でもってフェルールＦの先端端
面を研摩するには、第４図のように治具４に複数のフェ
ルールＦを取付け一定位置で回転する砥石３の凹球面２
に当接させて研摩するが、治具４が一定箇所に静止した
状態であるために、治具４に対するフェルールＦの取付
け方のバラツキ又はフェルールＦ自体の長さのバラツキ
等によって、第５図に示すように、フェルールＦの中心
を通る線の交点と砥石３の凹球面２の中心Ａとが上下方
向にずれたり、または第６図に示すようにそれらの中心
が左右にずれて研摩される状態が発生する。In order to grind the tip end face of the ferrule F with such a conventional device, as shown in FIG. 4, a plurality of ferrules F are attached to the jig 4 and the concave spherical surface 2 of the grindstone 3 which rotates at a fixed position.
Although the jig 4 is brought into contact with the jig 4 for polishing, the jig 4 is stationary at a certain position. Therefore, the ferrule F may be attached to the jig 4 in a manner different from the mounting method or the ferrule F itself in length. As shown in FIG. 5, the intersection of the line passing through the center of the ferrule F and the center A of the concave spherical surface 2 of the grindstone 3 are vertically displaced, or as shown in FIG. Occurs.
このため第５図及び第６図のいずれの場合において
も、研摩されたフェルールＦの端面は、球面の最も高い
部分がフェルールＦの中心軸線からずれた球面状態にて
研摩され、かつ端面の球面にバラツキが乗じる結果，こ
のようなフェルールＦから成るコネクタ同士を接続した
場合、砥石の曲率及びフェルールＦの中心位置とファイ
バーＦの中心位置がずれることによって各フェルールＦ
端面にファイバー先端が位置する先端面（球面）形状が
相異することになる。そのため光ファイバの接続に伴う
光伝導率が低下したり、または光伝導率にバラツキが生
ずるような研摩仕上りとなる欠点があった。Therefore, in both cases of FIG. 5 and FIG. 6, the end surface of the ground ferrule F is ground in a spherical state in which the highest part of the spherical surface is displaced from the central axis of the ferrule F, and the spherical surface of the end surface. As a result of the variation of the ferrules F, when the connectors made of such ferrules F are connected to each other, the curvature of the grindstone and the center position of the ferrules F and the center position of the fibers F are displaced from each other.
The shape of the tip surface (spherical surface) where the fiber tip is located on the end surface is different. Therefore, there has been a drawback that the photoconductivity is lowered due to the connection of the optical fibers, or the polishing finish is such that the photoconductivity varies.
本発明は、上記従来の欠点を解消するため、回転する
凹球面形状をした砥石の研摩面に対し、光ファイバーコ
ネクタのフェルール端面を対向させて支持した揺動台
を、砥石の凹球面中心にほぼ一致した中心をもつ固定円
弧に沿って揺動させつつフェルール端面を研摩するよう
にしたものである。In order to solve the above-mentioned conventional drawbacks, the present invention provides a rocking table, which is supported by facing the polishing surface of a rotating grindstone having a concave spherical surface with the ferrule end surface of an optical fiber connector facing the concave spherical surface of the grindstone. The ferrule end face is polished while being swung along a fixed arc having a coincident center.
以下、図によって本発明の実施例を説明する。 Embodiments of the present invention will be described below with reference to the drawings.
第１図は本発明の研摩装置の中央縦断面図であり、10
は回転台で、その中央に孔10aをもつと共に、図示しな
い回転駆動手段により回転可能に支承され構成されてい
る。11は砥石台であり、中央に孔11aを形成し砥石台11
に設けた複数本の垂直軸12を回転台10に設けたスライド
ベアリング13に遊嵌して砥石台11が回転台10に対して若
干の上下動ができるように支持されている。14は調節ね
じであり、砥石台11に垂直にねじ込むと共に、その調節
ねじ14の下端と回転台10との間にばね15を圧縮状態に設
けて、該ばね15の弾性力によって砥石台11を常時上方に
押圧し、かつ調節ねじ14を砥石台11に対してねじ込んだ
り、あるいはゆるめることによって、砥石台11の上方へ
の押圧力を調節するようになっている。さらに16は砥石
であり、下部を砥石11台に固定すると共に上面に半径R2
の凹球面形状の研摩面17を形成し、中央に孔16aが形成
してある。18は回転台10の孔10aと砥石台11の孔11aと砥
石16の孔16aの内部を貫通させて立設固定した支持台で
ある。この支持台18には、第２図及び第３図に示すよう
に上方と下方とに複数のローラベアリング19を、それら
の間に一定の幅をもつ溝を形成するように円弧状に配置
し，この円弧は半径R1をもち、かつその中心は砥石16の
研摩面17の円弧中心に一致させてある。20は揺動台であ
り、下端両側の円弧状のレール21,21をローラベアリン
グ19で形成した溝に遊嵌し、揺動台20がローラベアリン
グ19で形成した円弧状の溝に沿って円弧運動できるよう
に設けてある。また、揺動台20の上方の円筒部20aをシ
ルクハット状をした治具22の内筒部22a中に嵌合せし
め、螺子23により円筒部20aに固定する。また治具22の
つば22bには、研摩すべき複数のフェルール24,24を着脱
可能に取付け、且つフェルール24,24の中心軸線が研摩
面17の円弧中心に一致するように設ける。25は摺動腕で
あり、その中央部を第２図、第３図に示すように支持台
18に設けた軸26に対して揺動可能に支持すると共に、そ
の上端に形成した二又27を揺動台20に設けた連結軸28に
遊嵌する。29はモーターであり、そのモーター29の回転
軸30にはクランク31を設けると共に、クランク軸32と揺
動腕25下端とを球関節リンク33によって連結し、モータ
ー29の回転によって揺動腕25を軸26のを中心に往復揺動
するようになっている。FIG. 1 is a central longitudinal sectional view of the polishing apparatus of the present invention.
Is a rotary table which has a hole 10a at its center and is rotatably supported by a rotary driving means (not shown). 11 is a grindstone head, and a hole 11a is formed in the center to form the grindstone 11
A plurality of vertical shafts 12 provided on the rotary table 10 are loosely fitted to a slide bearing 13 provided on the rotary table 10, and the grindstone table 11 is supported so as to be capable of slightly moving up and down with respect to the rotary table 10. Reference numeral 14 denotes an adjusting screw, which is screwed vertically into the grindstone base 11, and a spring 15 is provided in a compressed state between the lower end of the adjusting screw 14 and the rotary base 10, and the grindstone base 11 is elastically moved by the spring 15. By constantly pressing upward and screwing or loosening the adjusting screw 14 into the grindstone base 11, the upward pressing force of the grindstone base 11 is adjusted. Further, 16 is a grindstone, and the lower part is fixed to 11 grindstones and the radius R 2 is set on the upper surface.
Forming a concave spherical surface 17 and forming a hole 16a in the center. Reference numeral 18 denotes a support table which is erected and fixed by penetrating the inside of the hole 10a of the rotary table 10, the hole 11a of the grindstone table 11 and the hole 16a of the grindstone 16. As shown in FIGS. 2 and 3, a plurality of roller bearings 19 are arranged on the support base 18 in the upper and lower portions in an arc shape so as to form a groove having a constant width therebetween. ， This arc has a radius R 1 and its center coincides with the center of the arc of the polishing surface 17 of the grindstone 16. Reference numeral 20 denotes a rocking base, in which arc-shaped rails 21 and 21 on both sides of the lower end are loosely fitted in a groove formed by a roller bearing 19, and the rocking base 20 makes an arc along the arc-shaped groove formed by the roller bearing 19. It is provided so that you can exercise. Further, the cylindrical portion 20a above the rocking table 20 is fitted into the inner cylindrical portion 22a of the jig 22 having a top hat shape, and is fixed to the cylindrical portion 20a by the screw 23. Further, a plurality of ferrules 24, 24 to be polished are detachably attached to the collar 22b of the jig 22, and the central axes of the ferrules 24, 24 are provided so as to coincide with the arc center of the polishing surface 17. Reference numeral 25 is a sliding arm, the central portion of which is a support base as shown in FIGS. 2 and 3.
A shaft 26 provided on 18 is swingably supported, and a fork 27 formed on the upper end of the shaft 26 is loosely fitted on a connecting shaft 28 provided on the swing base 20. 29 is a motor, and a crank 31 is provided on a rotary shaft 30 of the motor 29, and the crank shaft 32 and the lower end of the swing arm 25 are connected by a ball joint link 33, and the swing arm 25 is rotated by the rotation of the motor 29. It reciprocally swings around the shaft 26.
本発明装置は以上のように構成されており、次にその
作動を説明する。まずフェルール24の端面を研摩する準
備として円筒部20aから取り外した治具22のつば部に対
して複数本のフェルール24を所定位置に固定した後に、
治具22の内筒部22aに円筒部20aを嵌合させてねじ23を徐
々にねじこむ。The device of the present invention is configured as described above, and its operation will be described below. First, in order to prepare for polishing the end surface of the ferrule 24, after fixing a plurality of ferrules 24 at predetermined positions with respect to the brim portion of the jig 22 removed from the cylindrical portion 20a,
The cylindrical portion 20a is fitted into the inner cylindrical portion 22a of the jig 22, and the screw 23 is gradually screwed.
これによりフェルール24の下端面が砥石16の研摩面17
に当接し、さらにねじ23をねじ込むと砥石16を介して、
砥石台11はばね15を圧縮して第１図に示すように下方に
移動し、これによりフェルール24の下端と研摩面17と
は、ばね15の弾性力によって圧接した状態となる。As a result, the lower end surface of the ferrule 24 becomes the polishing surface 17 of the grindstone 16.
Abutting on, and further screwing in the screw 23, through the grindstone 16,
The grindstone 11 compresses the spring 15 and moves downward as shown in FIG. 1, whereby the lower end of the ferrule 24 and the polishing surface 17 are pressed against each other by the elastic force of the spring 15.
この状態のもとに、別置のモーター（次のモーター29
の回転力を利用してもよい）により砥石16を回転すると
共にモーター29の回転によってクランク31、球関節リン
ク33を介して揺動腕25が軸26を中心に揺動する。さらに
二又27を介して治具22を固定した揺動台20は、そのレー
ル21,21がローラベアリング19,19で形成された溝に沿っ
て所定の振幅で揺動しつつ、フェルール24の端面は回転
する砥石16の研摩面17によって研摩される。Under this condition, a separate motor (next motor 29
The rotating arm 25 is rotated about the axis 26 by the rotation of the motor 29 via the crank 31 and the ball joint link 33. Further, the rocking base 20 to which the jig 22 is fixed via the fork 27 has the rails 21 and 21 rocking along the groove formed by the roller bearings 19 and 19 at a predetermined amplitude while the ferrule 24 of the ferrule 24 is being rocked. The end surface is polished by the polishing surface 17 of the rotating grindstone 16.
なお、図示した実施例においては、摺動台20のレール
21をボールベアリングで形成した円弧状の溝に支持して
円弧運動させる構成のものを示したが、他の実施例とし
て一定の固定軸線を中心に揺動台を支持して揺動させる
ものであってもよい。In the illustrated embodiment, the rail of the slide base 20 is
Although the structure in which 21 is supported in an arc-shaped groove formed by a ball bearing to make an arc motion is shown, as another embodiment, a rocking table is supported and rocked about a fixed axis. It may be.
以上のように本発明は、回転する凹球面状をした砥石
の研摩面に対し光ファイバーコネクタ端面、すなわちフ
ェルール端面を対向させて支持した揺動台を、砥石の研
摩面中心にほぼ一致した中心をもつ固定円弧に沿って揺
動させつつ、フェルール端面を球面状に研摩するように
したことにより、研摩されたフェルール端面がフェルー
ルの中心軸線上に球面の頂部を正確に一致した状態に研
摩できることから、研摩されたフェルール同士を正確に
対向（接続）させることができ、その結果、光伝導率を
高めることができると共に、球面のばらつきも従来のも
のに比べて極めて小さくなり、製品の品質が安定し且つ
向上する等の効果が得られる。さらに使用する砥石の研
摩面は、被研摩物体が揺動運動するように作動すること
から、予め精緻な凹球面状に整形しておく必要が無く、
かつ研摩面の凹球曲率のわざわざ修正加工する必要がな
いなど多くの特長をもっている。INDUSTRIAL APPLICABILITY As described above, the present invention provides a rocking table that supports an optical fiber connector end surface, that is, a ferrule end surface facing the polishing surface of a rotating concave spherical grindstone so that the center substantially coincides with the polishing surface center of the grinding stone. While swinging along the fixed arc, the end face of the ferrule was polished into a spherical shape, so that the polished end face of the ferrule can be ground so that the top of the spherical surface is exactly aligned with the center axis of the ferrule. , The polished ferrules can be accurately opposed (connected) to each other, resulting in higher photoconductivity, and the dispersion of the spherical surface is much smaller than the conventional one, and the product quality is stable. And an effect such as improvement can be obtained. Furthermore, since the polishing surface of the grindstone to be used operates so that the object to be polished oscillates, it is not necessary to shape it into a precise concave spherical shape in advance.
Moreover, it has many features such as no need to modify the concave curvature of the polished surface.
【図面の簡単な説明】 第１図は本発明実施例に係るファイバーコネクタの端面
研摩装置の中央略断面図、第２図は本発明研摩装置を構
成する揺動機構を示す部分断面図、第３図は第２図のＸ
−Ｘ断面図、第４図は従来の研摩装置の要部断面図、第
５図、第６図はそれぞれ従来の研摩装置の問題点を説明
するための概略図である。 10:回転台、11:砥石台、16:砥石、17:研摩面、20:揺動
台、22:治具、24:フェルール、25:揺動腕、29:モーターBRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic center sectional view of an end surface polishing apparatus for a fiber connector according to an embodiment of the present invention, and FIG. 2 is a partial sectional view showing a rocking mechanism constituting the polishing apparatus of the present invention. Figure 3 is X in Figure 2
-X sectional view, FIG. 4 is a sectional view of a main part of a conventional polishing apparatus, and FIGS. 5 and 6 are schematic views for explaining problems of the conventional polishing apparatus. 10: rotary table, 11: whetstone table, 16: whetstone, 17: polishing surface, 20: rocking table, 22: jig, 24: ferrule, 25: rocking arm, 29: motor
───────────────────────────────────────────────────── フロントページの続き (72)発明者 薗田 秀人 滋賀県蒲生郡蒲生町川合10番地の１ 京 セラ株式会社滋賀蒲生工場内 (72)発明者 猪目 哲也 滋賀県蒲生郡蒲生町川合10番地の１ 京 セラ株式会社滋賀蒲生工場内 (56)参考文献 特開 昭60−221256（ＪＰ，Ａ) 特開 昭62−173159（ＪＰ，Ａ) 特開 昭59−169756（ＪＰ，Ａ) 特開 昭57−163842（ＪＰ，Ａ) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Hideto Sonoda, 1 at 10 Kawai, Gamo-cho, Gamo-gun, Shiga Prefecture Inside Kyocera Corporation's Shiga-Gamo Plant (72) Inventor Tetsuya Inome, Gaya-cho, Gamo-cho, Gamo-gun, Shiga Prefecture Address No. 1 Inside Shiga Gamo Factory of Kyocera Corporation (56) Reference JP-A-60-221256 (JP, A) JP-A-62-173159 (JP, A) JP-A-59-169756 (JP, A) Special Kai Sho 57-163842 (JP, A)
Claims (1)
介して取付けた回転台と、被研摩物である光ファイバー
コネクタのフェルールを上記砥石の研摩面に当接させて
固定する支持機構を備え、かつ上記凹球状をした研摩面
の中心とほぼ一致した中心をもった固定円弧に沿って揺
動する揺動台を上記支持機構に結合するとともに、この
揺動台に連結した揺動腕を有し、上記回転台と揺動腕と
を駆動する駆動機構を備えてなる光ファイバーコネクタ
の端面研摩装置。1. A rotating table having a magnet having a concave spherical polishing surface attached thereto via an elastic member, and a supporting mechanism for fixing a ferrule of an optical fiber connector, which is an object to be polished, against the polishing surface of the grindstone. And a rocking base which swings along a fixed arc having a center substantially coincident with the center of the concave spherical polishing surface, is coupled to the support mechanism, and is connected to the rocking base. An end face polishing device for an optical fiber connector, which has an arm and is provided with a drive mechanism for driving the rotary base and the swing arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61125259A JP2567587B2 (en) | 1986-05-29 | 1986-05-29 | Optical fiber connector end face polishing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61125259A JP2567587B2 (en) | 1986-05-29 | 1986-05-29 | Optical fiber connector end face polishing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62282856A JPS62282856A (en) | 1987-12-08 |
| JP2567587B2 true JP2567587B2 (en) | 1996-12-25 |
Family
ID=14905663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61125259A Expired - Fee Related JP2567587B2 (en) | 1986-05-29 | 1986-05-29 | Optical fiber connector end face polishing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2567587B2 (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5953153A (en) * | 1982-09-22 | 1984-03-27 | Hitachi Ltd | Method and apparatus for polishing spherical body |
| JPS60221256A (en) * | 1984-04-17 | 1985-11-05 | Tochigi Kouseki Kk | Spherical working apparatus for edge surface of rod member |
| JPH0647227B2 (en) * | 1986-01-24 | 1994-06-22 | 日本電信電話株式会社 | Method and device for processing rod end face |
-
1986
- 1986-05-29 JP JP61125259A patent/JP2567587B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62282856A (en) | 1987-12-08 |
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