JPH0345912A - Working method for connector ferrule for optical fiber - Google Patents
Working method for connector ferrule for optical fiberInfo
- Publication number
- JPH0345912A JPH0345912A JP18186889A JP18186889A JPH0345912A JP H0345912 A JPH0345912 A JP H0345912A JP 18186889 A JP18186889 A JP 18186889A JP 18186889 A JP18186889 A JP 18186889A JP H0345912 A JPH0345912 A JP H0345912A
- Authority
- JP
- Japan
- Prior art keywords
- master
- metallic mold
- ferrule
- point alloy
- mold
- 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
- 238000000034 method Methods 0.000 title claims description 6
- 239000013307 optical fiber Substances 0.000 title claims description 6
- 239000000956 alloy Substances 0.000 claims abstract description 19
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 19
- 238000001746 injection moulding Methods 0.000 claims abstract description 11
- 239000000919 ceramic Substances 0.000 claims abstract description 4
- 238000004519 manufacturing process Methods 0.000 claims abstract description 4
- 150000001875 compounds Chemical class 0.000 claims abstract description 3
- 238000002844 melting Methods 0.000 claims description 17
- 230000008018 melting Effects 0.000 claims description 17
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 238000009835 boiling Methods 0.000 abstract description 2
- 238000003780 insertion Methods 0.000 abstract description 2
- 230000037431 insertion Effects 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract 1
- 230000003252 repetitive effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/3833—Details of mounting fibres in ferrules; Assembly methods; Manufacture
- G02B6/3865—Details of mounting fibres in ferrules; Assembly methods; Manufacture fabricated by using moulding techniques
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2011/00—Optical elements, e.g. lenses, prisms
- B29L2011/0075—Light guides, optical cables
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Coupling Of Light Guides (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、光通信等に用いる光ファイバ同士を接続す
る時に用いる光ファイバコネクタの一部分であるフェル
ールに関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a ferrule that is a part of an optical fiber connector used when connecting optical fibers used in optical communication or the like.
本発明の光ファイバ用コネクタフェルール素材の製造方
法は射出成形用金型に、あらかじめセンターレス加工に
て精度が出ている低融点合金マスターを射出成形用金型
に挿入させておき、金型を閉じる際に低融点合金マスタ
ーを保持し、ゲートよりセラミックスコンパクトを挿入
させ、形状を得る。The method for manufacturing the optical fiber connector ferrule material of the present invention involves inserting a low melting point alloy master, which has been accurately processed through centerless processing, into the injection mold, and then inserting the master into the injection mold. When closing, hold the low melting point alloy master and insert the ceramic compact through the gate to obtain the shape.
その後、低融点合金マスターをお湯にて処理し小径の内
径孔を得ることにより、簡単にしかも精度のよいフェル
ール内に小径の内径孔が得られることを可能としたもの
である。Thereafter, by treating the low melting point alloy master with hot water to obtain a small diameter hole, it is possible to easily and accurately obtain a small diameter hole in the ferrule.
従来のフェルール素材の製造は、押出し成形及び射出成
形にて行なっており、射出成形にて小径の内径孔を得る
にはコアビン方式にて行なっていた。Conventional ferrule materials have been manufactured by extrusion molding and injection molding, and a core bin method has been used to obtain small inner diameter holes by injection molding.
しかしながら従来技術で示した加工方法（押出し成形）
では円筒上の単純形状しか製造できず、又、コアビン方
式での射出成形ではコアビンの形状精度（抜きテーパー
の問題）の問題、コアピンの摩耗の問題等があり、精度
よく加工するためには長時間必要であり、コスト高であ
るという問題がある。However, the processing method shown in the conventional technology (extrusion molding)
However, injection molding using the core bin method has problems with the shape accuracy of the core bin (pull taper problem) and wear of the core pin, so long lengths are required for accurate processing. There are problems in that it is time consuming and costly.
（課題を解決するための手段〕
上記従来の構造は、コアピンに抜きテーパーを必要とし
、このテーパーは金型からワークを取り出すためには必
要不可欠なものである。しかし、素材にて穴にテーパー
があると仕上げ加工で歩留まりが低下する。又、コアピ
ンの摩耗が激しく長時間、必要精度を維持することが難
しい、そこで、コアピンのかわりに低融点合金マスター
を用いることにより、センターレス加工にて精度よく仕
上げられ、１回ショットのみで新規マスターに交換し成
形するため精度保障ができ、又、ストレートピンのため
に出来上がった内径孔をストレートにすることができ、
次工程での歩留まりの低下がなく問題は解決される。(Means for solving the problem) The conventional structure described above requires a taper on the core pin, and this taper is essential for taking out the workpiece from the mold. In addition, the core pin is severely worn and it is difficult to maintain the required precision for a long time. Therefore, by using a low melting point alloy master instead of the core pin, centerless machining is possible. It is finished with high accuracy, and the precision can be guaranteed because it is replaced with a new master and molded with just one shot.In addition, the inner diameter hole created for a straight pin can be made straight.
The problem is solved without reducing the yield in the next process.
上述の如く構成することにより、従来の加工方法に比べ
精度も良く、特殊な加工機械を用いることなく、又、低
融点合金マスターは溶解するため、繰り返し使用できる
ので、安価に得ることができる。By configuring as described above, the accuracy is better than that of conventional processing methods, no special processing machines are required, and since the low melting point alloy master is melted, it can be used repeatedly, so it can be obtained at low cost.
以下、本発明の実施例を図面に基づいて説明する。 Embodiments of the present invention will be described below based on the drawings.
第１図は射出成形及び低融点合金マスターによって得ら
れたフェルール枠の側断面図である。FIG. 1 is a side sectional view of a ferrule frame obtained by injection molding and a low melting point alloy master.
第２図は本発明の低融点合金マスターを射出成形金型内
に配置した状態を示す側断面図である。FIG. 2 is a side sectional view showing the low melting point alloy master of the present invention placed in an injection mold.
第３図は射出成形により得られたワークであり、低融点
合金マスター３を取り除く前の斜視図である。まず第２
図に示すように射出成形金型内の挿入穴３ａに低融点合
金マスターを挿入する０次に金型２ｂを下降させて金型
締めをする。次にノズル４を金型に接触させ、ゲート５
を介してセラミックスコンパウンドを前記金型内に流し
込む０次に一定時間この状態を保持したのち金型２ｂを
上昇させエジェクトビン６にてワークを排出する。FIG. 3 shows a workpiece obtained by injection molding, and is a perspective view before the low melting point alloy master 3 is removed. First, the second
As shown in the figure, the low melting point alloy master is inserted into the insertion hole 3a in the injection mold, and then the mold 2b is lowered and the mold is clamped. Next, the nozzle 4 is brought into contact with the mold, and the gate 5 is
The ceramic compound is poured into the mold through the 0-th order, and after this state is maintained for a certain period of time, the mold 2b is raised and the workpiece is ejected into the eject bin 6.
次に第３図に示すように金型より排出されたリークを沸
騰したお湯の中へ投入し低融点合金マスターを溶融させ
フェルール枠１を得る。これで目的とする光ファイバコ
ネクタフェルール素材を得ることができる。Next, as shown in FIG. 3, the leak discharged from the mold is poured into boiling water to melt the low melting point alloy master and obtain the ferrule frame 1. In this way, the desired optical fiber connector ferrule material can be obtained.
上述の如く本発明は、フェルール素材を射出成形及び低
融点合金マスターを用いることにより精度よく、しかも
低融点合金マスターの繰り返し利用ができ、製造コスト
も低いということで実用上、優れた効果がある。As described above, the present invention has excellent practical effects because it uses injection molding of the ferrule material and a low melting point alloy master, which allows for high precision, the low melting point alloy master can be used repeatedly, and the manufacturing cost is low. .
第１図は射出成形で得たフェルール枠の断面図、第２図
は本発明の低融点合金マスターを射出成形金型内に配置
している側断面図、第３図は射出成形により得られたワ
ークであり、低融点合金マスターを取り除く前の斜視図
である。
１・・・フェルール枠
ｌａ ・
２ａ ・
２ ｂ ・
３ ・ ・
４ ・ ・
５ ・ ・
６ ・ ・
・フェルール枠内径
・下金型
・上金型
・低融点合金マスター
・ノズル
・ゲート
・エジェクトビン
以上Fig. 1 is a sectional view of a ferrule frame obtained by injection molding, Fig. 2 is a side sectional view of the low melting point alloy master of the present invention placed in an injection mold, and Fig. 3 is a sectional view of a ferrule frame obtained by injection molding. This is a perspective view of the work before removing the low melting point alloy master. 1... Ferrule frame la ・ 2a ・ 2 b ・ 3 ・ ・ 4 ・ ・ 5 ・ ・ 6 ・ ・ Ferrule frame inner diameter, lower mold, upper mold, low melting point alloy master, nozzle, gate, eject bin or more
Claims (1)
らかじめセンターレス加工にて形成された低融点合金マ
スターを射出成形用金型に挿入配置し、金型閉にて前記
低融点合金マスターを保持し、その周囲にセラミックコ
ンパウンドを射出することでフェルール素材を得ること
を特徴とする光ファイバ用コネクタフェルールの加工方
法。In the production of ferrule materials, a low melting point alloy master previously formed by centerless processing is inserted into an injection mold using the injection molding method, and the low melting point alloy master is held by closing the mold. A method for processing an optical fiber connector ferrule, which is characterized by obtaining a ferrule material by injecting a ceramic compound around the periphery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18186889A JP2929201B2 (en) | 1989-07-13 | 1989-07-13 | Processing method of connector ferrule for optical fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18186889A JP2929201B2 (en) | 1989-07-13 | 1989-07-13 | Processing method of connector ferrule for optical fiber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0345912A true JPH0345912A (en) | 1991-02-27 |
| JP2929201B2 JP2929201B2 (en) | 1999-08-03 |
Family
ID=16108251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18186889A Expired - Fee Related JP2929201B2 (en) | 1989-07-13 | 1989-07-13 | Processing method of connector ferrule for optical fiber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2929201B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6702962B2 (en) * | 2001-04-12 | 2004-03-09 | The Furukawa Electric Co., Ltd. | Manufacturing method of ferrule for multi optical connector |
-
1989
- 1989-07-13 JP JP18186889A patent/JP2929201B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6702962B2 (en) * | 2001-04-12 | 2004-03-09 | The Furukawa Electric Co., Ltd. | Manufacturing method of ferrule for multi optical connector |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2929201B2 (en) | 1999-08-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| S533 | Written request for registration of change of name |
Free format text: JAPANESE INTERMEDIATE CODE: R313533 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| LAPS | Cancellation because of no payment of annual fees |