JP2864185B2 - Polishing device for optical connector ferrule end face - Google Patents
Polishing device for optical connector ferrule end faceInfo
- Publication number
- JP2864185B2 JP2864185B2 JP20316692A JP20316692A JP2864185B2 JP 2864185 B2 JP2864185 B2 JP 2864185B2 JP 20316692 A JP20316692 A JP 20316692A JP 20316692 A JP20316692 A JP 20316692A JP 2864185 B2 JP2864185 B2 JP 2864185B2
- Authority
- JP
- Japan
- Prior art keywords
- optical connector
- polishing
- face
- connector ferrule
- 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.)
- Expired - Fee Related
Links
Landscapes
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Light Guides In General And Applications Therefor (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、光ファイバを接続する
光コネクタフェルールの端面を球面状に高精度かつ高品
質に研磨する小型軽量の自動化した研磨装置に関するも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a small and lightweight automatic polishing apparatus for polishing an end face of an optical connector ferrule for connecting an optical fiber to a spherical surface with high precision and high quality.
【０００２】[0002]
【従来の技術】従来、この種の研磨装置として特公平２
−４４６６８号公報に開示されているものがあり、これ
を図４を用いて説明する。モータ５１を内蔵する把持部
を兼ねた円筒筐体５３と、前記モータ５１に軸着し回転
するラッピングフィルム付研磨板５２と、前記研磨板５
２の研磨面には光コネクタフェルール１９を挿通し、ね
じ５８をばね５５を付勢圧着して螺合させた突設部を有
する光コネクタ保持板５６と、前記光コネクタ保持板５
６が前記研磨板５２の研磨面に対し往復運動させる案内
のための前記円筒筐体５３と嵌合する円筒状ヘッド５７
とから成っている。また、該円筒状ヘッド５７は前記光
コネクタ保持板５６を手動によって摺動案内するための
貫通溝が設けられている。以上の構成によって、光コネ
クタフェルールの端面は前記光コネクタ保持板を手動に
より前記貫通溝を摺動させ、回転する研磨板５２によっ
て研磨される。2. Description of the Related Art Conventionally, Japanese Patent Publication No.
Japanese Patent No. 44668/44, which will be described with reference to FIG. A cylindrical housing 53 that also serves as a gripping portion that houses a motor 51; a polishing plate 52 with a wrapping film that is pivotally mounted on the motor 51;
The optical connector holding plate 56 having a projecting portion in which the optical connector ferrule 19 is inserted through the polishing surface of the second connector 2 and the screw 58 is screwed by urging and pressing a spring 55, and the optical connector holding plate 5
6 is a cylindrical head 57 fitted with the cylindrical housing 53 for guiding reciprocating movement with respect to the polishing surface of the polishing plate 52.
And consists of Further, the cylindrical head 57 is provided with a through groove for manually slidingly guiding the optical connector holding plate 56. With the above configuration, the end face of the optical connector ferrule is polished by the rotating polishing plate 52 by manually sliding the optical connector holding plate through the through groove.
【０００３】[0003]
【発明が解決しようとする課題】通常、光ファイバもし
くは光コネクタフェルール端面では、中心軸に対し対称
性の良い高精度、高品位な球面形状にしたもの同士を突
き合わせることによって、光学特性（接続特性、反射減
衰量）が大幅に向上することが知られている。しかしな
がら、従来の光コネクタフェルールの端面研磨機では、
回転する研磨板上のラッピングフィルム５２の研磨面
に、光コネクタフェルール１９の端面を垂直に保持する
光コネクタ保持板５６を作業者が手動で円筒状ヘッド５
７の貫通溝の案内に沿って平行に往復運動させることに
よって、研磨板５２に対し光コネクタフェルールの端面
をフラット形状にのみ研磨できる。このような手動によ
る光コネクタフェルールの端面研磨機では以下に示す多
くの問題点があった。すなわち、 （１）手作業であるため、作業者の熟練を必要とし取扱
いが複雑で作業性が極めて悪い。この結果、研磨面が一
様に研磨されないなど再現性のない研磨となる。 （２）手動であるため、研磨速度が一定にならず、所期
の研磨面の加工形状、加工精度、品質等を確保すること
が困難で、研磨時間も制御できない。 （３）ラッピングフィルムによるフラット研磨作業であ
るため、光学特性（特に、反射減衰量と透過損失）に有
利な球面研磨が得られない。特に、光コネクタの接続現
場においては、研磨作業として研磨時間の短縮化、研磨
面の高品質化、もしくは場所を選ばない研磨等の容易化
と小型、軽量の自動研磨装置の実現が望まれていた。こ
のため本発明は、小型軽量で研磨装置を自動化して、光
コネクタフェルール端面を高精度、高品質な球面研磨加
工と同時に研磨作業の向上を図る光コネクタフェルール
の端面研磨装置を提供することを目的とするものであ
る。Generally, at the end face of an optical fiber or an optical connector ferrule, high-precision and high-quality spherical shapes having good symmetry with respect to the central axis are abutted to each other to obtain optical characteristics (connection). It is known that characteristics and return loss) are greatly improved. However, in a conventional optical connector ferrule end face polishing machine,
An operator manually mounts the optical connector holding plate 56 for vertically holding the end face of the optical connector ferrule 19 on the polishing surface of the lapping film 52 on the rotating polishing plate.
The end face of the optical connector ferrule can be polished only to a flat shape with respect to the polishing plate 52 by reciprocating in parallel along the guide of the through groove 7. Such manual polishing of the end face of the optical connector ferrule has many problems described below. That is, (1) Since it is a manual operation, skill is required for the operator, handling is complicated, and workability is extremely poor. As a result, non-reproducible polishing is performed such that the polished surface is not uniformly polished. (2) Since it is manual, the polishing rate is not constant, it is difficult to ensure the desired processing shape, processing accuracy, quality, etc. of the polishing surface, and the polishing time cannot be controlled. (3) Since the flat polishing is performed using a wrapping film, spherical polishing that is advantageous in optical characteristics (particularly, return loss and transmission loss) cannot be obtained. In particular, at the connection site of an optical connector, it is desired to realize a small and lightweight automatic polishing apparatus as well as a reduction in polishing time, a high quality of a polished surface, or easiness of polishing in any place as a polishing operation. Was. Therefore, the present invention provides an optical connector ferrule end surface polishing apparatus which is small and lightweight, automates the polishing apparatus, and improves the polishing work at the same time with high precision and high quality spherical polishing of the end face of the optical connector ferrule. It is the purpose.
【０００４】[0004]
【課題を解決するための手段】課題を解決するために、
請求項１において、光コネクタフェルールの端面を球面
研磨する光コネクタフェルールの端面研磨装置におい
て、モータとモータ減速機および電源を内蔵した手把部
を兼ねた筐体と、モータ駆動軸に軸着され、上面に軟質
弾性体を貼着した研磨板と、光コネクタフェルールを前
記研磨板に対し垂直に保持し、該光コネクタフェルール
の端面を前記研磨板に押圧する手段を有する光コネクタ
保持板と、前記モータによつて駆動され、前記光コネク
タ保持板の研磨面に対し平行に自動往復させる揺動部
と、とにより構成されたことを特徴とする光コネクタフ
ェルールの端面研磨装置を構成し、請求項２において、
研磨板の上面は、下部の軟質弾性体と上部の研磨砥粒を
含むラツピングフィルムとの貼着構造として、光コネク
タフェルールの端面を研磨することを特徴とする請求項
１の光コネクタフェルールの端面研磨装置を構成し、請
求項３において、研磨板の上面は、軟質弾性体とセルロ
ーズ系フィルムで貼着構造としたものと、仕上げ加工用
の研磨剤を用いて、光コネクタフェルールの端面を研磨
することを特徴とする請求項１の光コネクタフェルール
の端面研磨装置を構成した。[Means for Solving the Problems] To solve the problems,
2. The optical connector ferrule end surface polishing apparatus according to claim 1, wherein the end surface of the optical connector ferrule is spherically polished. A polishing plate having a soft elastic body adhered to the upper surface thereof, and an optical connector holding plate having means for holding an optical connector ferrule perpendicular to the polishing plate and pressing an end face of the optical connector ferrule against the polishing plate, An optical connector ferrule end surface polishing apparatus, comprising: a swinging portion driven by the motor to automatically reciprocate in parallel to a polishing surface of the optical connector holding plate; In item 2,
2. The optical connector ferrule according to claim 1, wherein the upper surface of the polishing plate has an end face of the optical connector ferrule as an adhesive structure of a lower soft elastic body and an upper lapping film containing abrasive grains. An end face polishing device is constituted, and in claim 3, the upper face of the polishing plate is formed by attaching a soft elastic body and a cellulosic film to each other, and the end face of the optical connector ferrule is formed by using an abrasive for finishing. A polishing apparatus for polishing an end face of an optical connector ferrule according to claim 1, wherein the polishing is performed.
【０００５】[0005]
【作用】本発明を前記の通り構成したので、請求項１に
よる光コネクタフェルールの端面研磨装置においては、
光コネクタフェルールの端面が研磨板に対し垂直に保持
されると共に該光コネクタフェルールの端面を研磨板に
押圧する手段を有する光コネクタ保持板が前記研磨板の
研磨面に対し平行に繰り返し自動揺動することにより該
光コネクタフェルールの端面を研磨するので、球面研磨
状態を一定に保持して、加工特性、および光学特性の再
現性が高められ、しかも前記端面は確実に研磨できる。
従つて、前記繰り返し自動揺動により、従来の手作業か
ら解放されるので、地面あるいは柱上等での作業現場で
簡単に使用でき、かつ、光ファイバケーブルの接続作業
も高性能で行えることになる。また、請求項２による研
磨板上面に軟質弾性体とラツピングフィルムの積層貼着
構造としたこと、請求項３による研磨板上面に軟質弾性
体とセルローズ系フィルムを用いて貼着構造とし所定の
研磨剤を用いたことにより、容易に光コネクタフェルー
ルの端面の球面研磨が得られ、従来例のラツピングフィ
ルムによる光コネクタフェルールの端面加工よりも格段
すぐれた加工特性、光学特性が得られる。According to the present invention, the apparatus for polishing an end face of an optical connector ferrule according to the first aspect has the following features.
The end face of the optical connector ferrule is held perpendicular to the polishing plate, and the optical connector holding plate having means for pressing the end surface of the optical connector ferrule against the polishing plate repeatedly and automatically swings in parallel to the polishing surface of the polishing plate. By doing so, the end face of the optical connector ferrule is polished, so that the spherical polishing state is kept constant, the reproducibility of processing characteristics and optical characteristics is improved, and the end face can be polished reliably.
Therefore, since the repetitive automatic swing releases the conventional manual work, it can be easily used at the work site on the ground or on a pillar, and the work of connecting the optical fiber cable can be performed with high performance. Become. Further, a laminated structure of a soft elastic body and a wrapping film is formed on the upper surface of the polishing plate according to claim 2, and a laminated structure is formed by using a soft elastic material and a cellulose film on the upper surface of the polishing plate according to claim 3. By using the abrasive, the end face of the optical connector ferrule can be easily polished spherically, and the processing characteristics and optical properties which are much better than the end face processing of the optical connector ferrule by the conventional wrapping film can be obtained.
【０００６】[0006]
【実施例】本発明の実施例を図面と共に説明する。 （実施例１）図１ないし図３は本発明の光コネクタフェ
ルールの端面研磨装置の説明図であって、図１は光コネ
クタフェルールの端面研磨装置の一部縦断面図、図２は
前記装置の構成主要部を示す斜視図、図３は光コネクタ
保持板、光コネクタ取付板の実施例を示す一部縦断面図
である。図１において手把部を兼ねた筐体３は電池収納
部９、電源端子の両方またはいずれか一方を具備した電
源部、タイマー１０、スイッチ１１および減速機１２と
結合したモータ１を内蔵収納している。減速機１２の回
転軸には研磨板２が結合しており、その下面部は一体の
歯車形状を有する。揺動カム１３は下面の歯車と上面の
カム部とが一体に構成されており、支持板１４上にピン
１５によって固定されていて、研磨板２の下面部に設け
られた歯車と揺動カム下面の歯車とが噛合っている。さ
らに光コネクタ保持板１６を揺動させるため、前記光コ
ネクタ保持板１６にセットされているカムフォロワーベ
アリング１７に前記揺動カム１３が平行に合わされ、ヘ
ッド１８の一端にけん架した揺動ばね２２によりセット
されて揺動カム１３の上面に設けられたカムに圧接して
いる。光コネクタ保持板１６の上には、光コネクタフェ
ルールを研磨板２に対して垂直に保持する光コネクタ取
付板２０と前記光コネクタ取付板２０を案内するための
溝を設けたヘッド１８とからなり、このヘッド１８は手
把部筐体３と固定ねじ２３により固定されており、手把
部筐体３とヘッド１８との固定位置を設定する役割をす
る。光コネクタフェルール１９は光コネクタ取付板２０
に穿設された穴に挿入され、光コネクタ保持板１６上の
穿設されたねじ穴に対し光コネクタ取付板２０に穿設さ
れた穴とがスタッドピン２４を介して固定される（図
３）。 これによりスタッドピン２４により挿入されたば
ね２１により研磨板２の上面に貼着した研磨粒入り軟質
弾性体２５の研磨面に押圧する。モータ１は電池収納部
９の電池を電源とし、減速機１２により回転を下げてト
ルクを増加し、その回転を研磨板２に伝達する。これに
より回転する研磨板２の下面部の歯車と噛み合っている
揺動カムの下面部の歯車を介し揺動カム１３を回転させ
ると同時に、その揺動回転をカムフォロワーベアリング
１７およびばね２２を介して光コネクタ保持板１６を研
磨板２の研磨面に対し、平行に自動往復させることがで
きる。上述のようにセットした状態で、手把部を兼ねた
筐体３を片手に持ち、タイマー１０で加工時間を制御し
た後、電源スイッチ１１によりモータ１を始動させる
と、研磨板２が回転し、同時に揺動カム１３も回転し
て、カムフォロワーベアリング１７と一体化した光コネ
クタ保持板１６を研磨板２に対して平行に自動往復運動
を繰り返す。この際、光コネクタフェルール１９は光コ
ネクタ取付板２０の穴にセットされたばね２１の圧力を
受けて、光コネクタフェルールの端面は球面研磨され
る。図２は本発明の光コネクタ保持板１６と揺動カム１
３を含むヘッド１８を示すとともに要部全体の構成を一
部断面で示した斜視図である。ヘッド１８は手把部筐体
３と嵌合するように分割されており、ヘッド１８には光
コネクタ取付板２０を搭載した光コネクタ保持板１６を
揺動中にヘッドから外れないように案内板２６がねじ２
７によりヘッド１８に固定されている。これにより、光
コネクタ保持板１６は研磨板１２に対して平行に繰り返
し自動揺動ができる。組立は光コネクタ保持板１６をヘ
ッド１８の切欠溝に挿入した後、そのヘッド１８の下端
を手把部筐体３の上面のねじ穴の位置に重ね合わせ双方
をねじ２３で固定して部分組立を行なう。最後にタイマ
ー１０、スイッチ１１を収納する筐体７と手把部筐体３
とをねじ２８で固定して全体の組立を行なう。このよう
に研磨板２の回転軸と同軸に歯車が固定され、揺動カム
１３を介して光コネクタ保持板１６を研磨板２に対して
平行に揺動を案内する。また研磨板２に対して光コネク
タ保持板１６の回転比の制御は研磨板２の下面部の歯車
と揺動カム１３の下面部の歯車の組合せにより容易に設
定できる。さらに、本実施例では光コネクタ保持板２０
の揺動往復数の制御に歯車を使用したがベルトによる揺
動往復させる方式としてもよい。また電源に電池を使用
したが外部電源によるモータ駆動方式でもよい。本実施
例による自動研磨装置は重量は５００ｇ以下で、従来の
ものより遙かに軽量である。なお光コネクタフェルール
１９の種類は通常ジルコニアまたはアルミナセラミック
ス製のフェルールだけでなく、プラグおよびプリドーム
フェルールさらに光ファイバの素線端面のみの研磨も対
象に可能である。また光コネクタ取付板２０には複数本
の光コネクタフェルールが同時に取付けることも可能で
ある。 （実施例２）本発明による装置において、研磨板２の上
面には押下するとその押下された表面の一部が凹状に弾
性変形特性を有する弾性体が貼着されている。前記弾性
体にはコルク入り合成ゴム（例えば永柳製）またはバフ
研磨剤（例えばユタカトレンズ製）が貼着され、その上
にアルミナおよびダイヤモンド粒子の研磨層を有するラ
ッピングフィルムが貼着して構成されている。この構成
において、光コネクタフェルール１９の端面を押付け、
表面を変形させることによって、前記光コネクタフェル
ールの端面を凸球面に研磨することができる。 （実施例３）本発明による装置において、研磨板２の上
面の弾性体には実施例２記載の弾性体材料を用い、その
表面上にセルローズ樹脂フィルムを配置し、かつ研磨剤
として微細で高硬度なダイヤモンドを含んだ水溶液およ
びＡｌ2 Ｏ3 ，ＣｅＯ2 ，ＳｉＯ2 ，ＣｒＯ2 ，Ｆｅ2
Ｏ3 ，ＴｉＯ2 ，ＺｒＯ2 等の酸化物系微粒子を含んだ
水溶液のものを用いる。これにより光コネクタフェルー
ル１９の端面を凸球面に研磨することができる。前述の
（実施例２）および（実施例３）で述べたように、光コ
ネクタ保持板の自動揺動と研磨剤および研磨板の組合せ
による光コネクタフェルールの端面の球面研磨法により
研磨速度、加工時間等の研磨条件を容易に制御できる。
この結果、所要の加工特性が得られることから光学特性
も安定する。また、セルローズ系樹脂フィルム等の寿命
により研磨が不能の場合には、ヘッド１８を手把部筐体
３から外し、貼り替え交換を容易にすることができる。
また、ラッピングフィルムおよびセルローズ系樹脂フィ
ルム裏面および研磨板には接着剤が塗布してある。ま
た、研磨剤には種々の粒径を選択し、材質には前記ダイ
ヤモンドの他、ＣｅＯ2 ，Ａｌ2 Ｏ2 ，ＳｉＯ2 ，Ｃｒ
Ｏ2 ，Ｆｅ2 Ｏ3 ，ＴｉＯ2 ，ＺｒＯ2 等の酸化物系微
粒子を用いて、石英，Ａｌ，Ｚｒセラミックス製の材質
の光コネクタの端面研磨に適用することができる。An embodiment of the present invention will be described with reference to the drawings. (Embodiment 1) FIGS. 1 to 3 are explanatory views of an end polishing apparatus for an optical connector ferrule of the present invention. FIG. 1 is a partial longitudinal sectional view of an end polishing apparatus for an optical connector ferrule, and FIG. FIG. 3 is a partial longitudinal sectional view showing an embodiment of an optical connector holding plate and an optical connector mounting plate. In FIG. 1, a housing 3 also serving as a hand-holding portion houses therein a battery housing portion 9, a power supply portion having at least one of a power supply terminal, a motor 10 combined with a timer 10, a switch 11 and a speed reducer 12. ing. The polishing plate 2 is connected to the rotation shaft of the speed reducer 12, and the lower surface thereof has an integral gear shape. The oscillating cam 13 has a lower gear and an upper cam portion integrally formed, is fixed on a support plate 14 by pins 15, and has a gear and an oscillating cam provided on the lower surface of the polishing plate 2. The gear on the lower surface is engaged. Further, in order to swing the optical connector holding plate 16, the swing cam 13 is fitted in parallel with a cam follower bearing 17 set on the optical connector holding plate 16, and a swing spring 22 suspended on one end of the head 18. And presses against the cam provided on the upper surface of the swing cam 13. On the optical connector holding plate 16, an optical connector mounting plate 20 for holding the optical connector ferrule perpendicular to the polishing plate 2 and a head 18 provided with a groove for guiding the optical connector mounting plate 20 are provided. The head 18 is fixed to the hand housing 3 by a fixing screw 23, and serves to set a fixing position between the hand housing 3 and the head 18. The optical connector ferrule 19 includes an optical connector mounting plate 20.
The holes formed in the optical connector mounting plate 20 are fixed via stud pins 24 to the screw holes formed in the optical connector holding plate 16 (FIG. 3). ). As a result, the spring 21 inserted by the stud pins 24 presses against the polished surface of the soft elastic body 25 containing abrasive grains attached to the upper surface of the polishing plate 2. The motor 1 uses the battery in the battery housing 9 as a power source, reduces the rotation by the speed reducer 12 to increase the torque, and transmits the rotation to the polishing plate 2. Thus, the swing cam 13 is rotated via the gear on the lower surface of the swing cam meshing with the gear on the lower surface of the rotating polishing plate 2, and the swing rotation is simultaneously performed via the cam follower bearing 17 and the spring 22. Thus, the optical connector holding plate 16 can be automatically reciprocated in parallel to the polishing surface of the polishing plate 2. With the setting as described above, holding the housing 3 serving also as a handhold in one hand, controlling the processing time with the timer 10, and then starting the motor 1 with the power switch 11, the polishing plate 2 rotates. At the same time, the swing cam 13 also rotates, and the optical connector holding plate 16 integrated with the cam follower bearing 17 repeats the automatic reciprocating motion in parallel with the polishing plate 2. At this time, the end face of the optical connector ferrule 19 is spherically polished by receiving the pressure of the spring 21 set in the hole of the optical connector mounting plate 20. FIG. 2 shows the optical connector holding plate 16 and the swing cam 1 of the present invention.
FIG. 2 is a perspective view showing a head 18 including a head 3 and a partial cross-sectional view of a configuration of a main part as a whole. The head 18 is divided so as to fit with the handle housing 3, and the head 18 is provided with a guide plate so that the optical connector holding plate 16 on which the optical connector mounting plate 20 is mounted does not come off from the head while swinging. 26 is screw 2
7 is fixed to the head 18. As a result, the optical connector holding plate 16 can repeatedly and automatically swing in parallel with the polishing plate 12. After the optical connector holding plate 16 is inserted into the cutout groove of the head 18, the lower end of the head 18 is overlapped with the screw hole on the upper surface of the handle housing 3, and both are fixed by screws 23. Perform Lastly, the housing 7 for storing the timer 10 and the switch 11 and the handhold housing 3
Are fixed with screws 28 to perform the entire assembly. Thus, the gear is fixed coaxially with the rotation axis of the polishing plate 2, and guides the swing of the optical connector holding plate 16 in parallel with the polishing plate 2 via the swing cam 13. Further, the control of the rotation ratio of the optical connector holding plate 16 with respect to the polishing plate 2 can be easily set by a combination of a gear on the lower surface of the polishing plate 2 and a gear on the lower surface of the swing cam 13. Further, in this embodiment, the optical connector holding plate 20
Although a gear is used for controlling the number of reciprocating swings, a method of reciprocating swinging by a belt may be used. Although a battery is used as the power supply, a motor drive system using an external power supply may be used. The automatic polishing apparatus according to the present embodiment weighs less than 500 g and is much lighter than the conventional one. The type of the optical connector ferrule 19 is not limited to a ferrule usually made of zirconia or alumina ceramics, but can be used for polishing only a plug, a pre-dome ferrule, and an optical fiber end face. Also, a plurality of optical connector ferrules can be attached to the optical connector attachment plate 20 at the same time. (Embodiment 2) In the apparatus according to the present invention, when pressed down, an elastic body having elastic deformation characteristics is attached to the upper surface of the polishing plate 2 so that a part of the pressed surface is concave. The elastic body is formed by adhering a synthetic rubber containing cork (for example, made by Nagayanagi) or a buffing abrasive (for example, made by Yutaka Tolens), and then attaching a wrapping film having a polishing layer of alumina and diamond particles thereon. ing. In this configuration, the end face of the optical connector ferrule 19 is pressed,
By deforming the surface, the end face of the optical connector ferrule can be polished to a convex spherical surface. (Embodiment 3) In the apparatus according to the present invention, the elastic body material described in Embodiment 2 is used for the elastic body on the upper surface of the polishing plate 2, a cellulose resin film is disposed on the surface, and fine and high- Aqueous solution containing hard diamond and Al 2 O 3 , CeO 2 , SiO 2 , CrO 2 , Fe 2
An aqueous solution containing oxide-based fine particles such as O 3 , TiO 2 , and ZrO 2 is used. Thereby, the end face of the optical connector ferrule 19 can be polished to a convex spherical surface. As described in the above (Example 2) and (Example 3), the polishing speed and the processing are performed by the automatic swinging of the optical connector holding plate and the spherical polishing method of the end face of the optical connector ferrule by the combination of the abrasive and the polishing plate. Polishing conditions such as time can be easily controlled.
As a result, the required processing characteristics are obtained, and the optical characteristics are also stabilized. If polishing is impossible due to the life of the cellulosic resin film or the like, the head 18 can be removed from the handle housing 3 to facilitate replacement and replacement.
An adhesive is applied to the back surface of the wrapping film, the cellulose resin film and the polishing plate. Various particle sizes are selected for the abrasive, and the material is CeO 2 , Al 2 O 2 , SiO 2 , Cr, in addition to the diamond.
The present invention can be applied to polishing of the end face of an optical connector made of quartz, Al, or Zr ceramics using oxide-based fine particles such as O 2 , Fe 2 O 3 , TiO 2 , and ZrO 2 .
【０００７】[0007]
【発明の効果】本発明は、上記のように構成されている
ので次に記載する効果を奏する。請求項１ないし請求項
３の光コネクタフェルールの端面研磨装置において、装
置の小型、軽量自動化、各構成部品のユニット化により
組立、分解の容易化がはかられた。この装置において研
磨に使用する弾性体とラッピングフィルムおよび弾性体
と研磨剤との組合せを用いた研磨板により、光コネクタ
フェルール端面を研磨板に押圧して、保持手段を自動揺
動させ、光コネクタフェルール端面を凸球面研磨でき
る。この結果曲率半径の小さな端面と形状精度の高い均
一な研磨ができ、接続損失および反射減衰量がきわめて
小さい高性能な光コネクタフェルールを得ることができ
るという効果がある。さらに、光コネクタ現場作業とし
て、手で携帯できるほか、小型、軽量の自動研磨装置と
して光ファイバを用いた通信および計測分野へ与える効
果は大である。また、光コネクタの一例としてあらかじ
め曲率加工したプリドームフェルール端面にも高品位で
均一な研磨を得ることができるので、現場での加工時間
を短縮し、かつ研磨作業を容易にする。さらに、光コネ
クタフェルールの端面をばねにより複数本研磨板の研磨
面に押圧することによって、同時にしかも均一に複数本
を研磨することができるので、研磨にかかる加工コスト
の低減が実現できるという利点もある。Since the present invention is configured as described above, the following effects can be obtained. In the apparatus for polishing an end face of an optical connector ferrule according to any one of claims 1 to 3, assembly and disassembly are facilitated by miniaturization of the apparatus, lightweight automation, and unitization of each component. In this apparatus, the end face of the optical connector ferrule is pressed against the polishing plate by a polishing plate using a combination of an elastic body and a wrapping film and an elastic body and an abrasive used for polishing, and the holding means is automatically swung, and the optical connector The ferrule end surface can be polished to a convex spherical surface. As a result, an end face having a small radius of curvature and uniform polishing with high shape accuracy can be performed, and a high-performance optical connector ferrule with extremely small connection loss and return loss can be obtained. Furthermore, the optical connector can be carried by hand as an on-site work, and as a small and lightweight automatic polishing apparatus, the effect on the communication and measurement fields using optical fibers is great. Further, as an example of the optical connector, a high-quality and uniform polishing can be obtained on the end face of the pre-dome ferrule which has been subjected to a curvature processing in advance, so that the processing time on site is shortened and the polishing operation is facilitated. Furthermore, by pressing the end face of the optical connector ferrule against the polishing surface of a plurality of polishing plates with a spring, a plurality of polishing plates can be simultaneously and uniformly polished, so that there is an advantage that the processing cost required for polishing can be reduced. is there.
【図１】本発明の光コネクタフェルールの端面研磨装置
の一部断面を示す縦断面図FIG. 1 is a longitudinal sectional view showing a partial cross section of an apparatus for polishing an end face of an optical connector ferrule of the present invention.
【図２】本発明の光コネクタフェルールの端面研磨装置
の構成主要部を示す斜視図FIG. 2 is a perspective view showing a main part of a configuration of an end face polishing apparatus for an optical connector ferrule of the present invention.
【図３】本発明の光コネクタフェルールの端面研磨装置
の光コネクタ保持板・取付板の実施例を示す一部断面を
示す縦断面図FIG. 3 is a longitudinal sectional view showing a partial section showing an embodiment of an optical connector holding plate and an attaching plate of the end face polishing apparatus for an optical connector ferrule of the present invention.
【図４】従来の光コネクタ端面研磨機の一部断面を示す
縦断面図FIG. 4 is a longitudinal sectional view showing a partial section of a conventional optical connector end face polishing machine.
１ モータ ２ 研磨板 ３ 手把部筐体 ７ 筐体 ９ 電池収納部 １０ タイマー １１ スイッチ １２ 減速機 １３ 揺動カム １４ 支持板 １５ ピン １６ 光コネクタ保持板 １７ カムフォロワーベアリング １８ ヘッド １９ 光コネクタフェルール ２０ 光コネクタ取付板 ２１ ばね ２２ ばね ２３ 固定ねじ ２４ スタッドピン ２５ 軟質弾性体 ２６ 案内板 ２７ 固定ねじ ２８ 固定ねじ ５１ モータ ５２ ラッピングフィルム付研磨板 ５３ 円筒筐体 ５５ ばね ５６ 光コネクタ保持板 ５７ 円筒状ヘッド ５８ ねじ DESCRIPTION OF SYMBOLS 1 Motor 2 Polishing plate 3 Handhold housing 7 Housing 9 Battery storage unit 10 Timer 11 Switch 12 Reduction gear 13 Swing cam 14 Support plate 15 Pin 16 Optical connector holding plate 17 Cam follower bearing 18 Head 19 Optical connector ferrule 20 Optical connector mounting plate 21 Spring 22 Spring 23 Fixing screw 24 Stud pin 25 Soft elastic body 26 Guide plate 27 Fixing screw 28 Fixing screw 51 Motor 52 Polishing plate with wrapping film 53 Cylindrical housing 55 Spring 56 Optical connector holding plate 57 Cylindrical head 58 screws
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭61−209865（ＪＰ，Ａ) 実開 昭62−150050（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.6，ＤＢ名) G02B 6/00 335──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-61-209865 (JP, A) JP-A-62-150050 (JP, U) (58) Fields investigated (Int. Cl. 6 , DB name) G02B 6/00 335
Claims (3)
る光コネクタフェルールの端面研磨装置において、 モータとモータ減速機および電源を内蔵した手把部を兼
ねた筐体と、 モータ駆動軸に軸着され、上面に軟質弾性体を貼着した
研磨板と、 光コネクタフェルールを前記研磨板に対し垂直に保持
し、該光コネクタフェルールの端面を前記研磨板に押圧
する手段を有する光コネクタ保持板と、 前記モータによって駆動され、前記光コネクタ保持板を
前記研磨板の研磨面に対し平行に自動往復させる揺動部
と、 とにより構成されたことを特徴とする光コネクタフェル
ールの端面研磨装置。An end polishing apparatus for an optical connector ferrule for spherically polishing an end face of an optical connector ferrule, wherein a housing which also serves as a hand holding a motor, a motor speed reducer and a power supply, and which is axially mounted on a motor drive shaft. A polishing plate having a soft elastic body adhered to an upper surface thereof, and an optical connector ferrule held vertically to the polishing plate, and an end face of the optical connector ferrule pressed against the polishing plate.
An optical connector holding plate having means for performing the operation, and a swing unit driven by the motor to automatically reciprocate the optical connector holding plate in parallel with a polishing surface of the polishing plate. An end face polishing device for an optical connector ferrule.
部の研磨砥粒を含むラツピングフィルムとの貼着構造と
して、光コネクタフェルールの端面を研磨することを特
徴とする請求項１の光コネクタフェルールの端面研磨装
置。2. An end face of an optical connector ferrule is polished as an adhesive structure of a lower soft elastic body and an upper lapping film containing abrasive grains on an upper surface of the polishing plate. Polishing device for optical connector ferrule.
ズ系フィルムで貼着構造としたものと、仕上げ加工用の
研磨剤を用いて、光コネクタフェルールの端面を研磨す
ることを特徴とする請求項１の光コネクタフェルールの
端面研磨装置。3. The polishing plate is characterized in that the upper surface of the polishing plate is bonded with a soft elastic body and a cellulosic film, and the end face of the optical connector ferrule is polished using a polishing agent for finishing. An apparatus for polishing an end face of an optical connector ferrule according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20316692A JP2864185B2 (en) | 1992-07-08 | 1992-07-08 | Polishing device for optical connector ferrule end face |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20316692A JP2864185B2 (en) | 1992-07-08 | 1992-07-08 | Polishing device for optical connector ferrule end face |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0627330A JPH0627330A (en) | 1994-02-04 |
| JP2864185B2 true JP2864185B2 (en) | 1999-03-03 |
Family
ID=16469544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20316692A Expired - Fee Related JP2864185B2 (en) | 1992-07-08 | 1992-07-08 | Polishing device for optical connector ferrule end face |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2864185B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003039313A (en) * | 2001-08-02 | 2003-02-13 | Speedfam Co Ltd | Center drive unit for one-side polishing device |
| US6945860B2 (en) | 2002-10-28 | 2005-09-20 | Nippon Telegraph And Telephone Corporation | Apparatus for and method of machining of optical connector end |
| CN101610875B (en) | 2007-02-16 | 2011-05-25 | 3M创新有限公司 | Optical fiber polishing apparatus and method |
| JP2012521021A (en) * | 2009-03-17 | 2012-09-10 | スリーエム イノベイティブ プロパティズ カンパニー | Optical fiber polishing apparatus and method |
| KR101630194B1 (en) * | 2014-11-25 | 2016-06-15 | 휴센트주식회사 | Portable apparatus of grinding optical connector using grinding wheel |
| KR101677393B1 (en) * | 2015-10-01 | 2016-11-18 | 주식회사 포스코 | Apparatus for grinding sample |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61209865A (en) * | 1985-03-13 | 1986-09-18 | Sumitomo Electric Ind Ltd | Optical fiber polishing device |
| JPS62150050U (en) * | 1986-03-14 | 1987-09-22 |
-
1992
- 1992-07-08 JP JP20316692A patent/JP2864185B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0627330A (en) | 1994-02-04 |
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