JP3403213B2 - Grooving method and grooving device - Google Patents
Grooving method and grooving deviceInfo
- Publication number
- JP3403213B2 JP3403213B2 JP26434892A JP26434892A JP3403213B2 JP 3403213 B2 JP3403213 B2 JP 3403213B2 JP 26434892 A JP26434892 A JP 26434892A JP 26434892 A JP26434892 A JP 26434892A JP 3403213 B2 JP3403213 B2 JP 3403213B2
- Authority
- JP
- Japan
- Prior art keywords
- groove
- processed
- grindstone
- cutting surface
- inclined surface
- 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 - Lifetime
Links
Landscapes
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、たとえば光ファイバな
どの位置決めなどとして利用されるＶ溝または台形溝な
どの傾斜面溝が形成してある光コネクタあるいは光コネ
クタを形成するための金型などの部品を精度良くしかも
効率的に製造するための傾斜面溝を有する部品の製造方
法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical connector having an inclined surface groove such as a V groove or a trapezoidal groove used for positioning an optical fiber or the like, or a mold for forming the optical connector. The present invention relates to a method for manufacturing a component having an inclined surface groove for accurately and efficiently manufacturing the component.
【０００２】[0002]
【従来の技術】光通信技術では、光ファイバー相互を正
確に位置合わせして接続することが重要である。光ファ
イバー相互を正確に位置合わせして接続するための手段
として、光コネクタなどが用いられる。2. Description of the Related Art In optical communication technology, it is important to accurately align and connect optical fibers. An optical connector or the like is used as a means for accurately aligning and connecting optical fibers to each other.
【０００３】多心光コネクタの代表的な構造を図６に示
す。この光コネクタ１０では、等ピッチで配列されたフ
ァイバー挿入孔２に光ファイバー３が挿入され、ファイ
バー挿入孔２の両端に、接続の基準となる嵌合ピンを挿
入するガイド孔４を有する。ガイド孔４には、位置合わ
せのためのガイドピン６が挿入される。光コネクタ１０
の材質は、モールド成形されたプラスチックが一般的で
ある。このような光コネクタ１０において、光ファイバ
ー相互を精度良く接続するために、各孔２，４の穴径精
度、位置精度はシングルモードファイバーでは１μｍ以
下が要求される。A typical structure of a multi-fiber optical connector is shown in FIG. In this optical connector 10, the optical fibers 3 are inserted into the fiber insertion holes 2 arranged at equal pitches, and both ends of the fiber insertion holes 2 have guide holes 4 into which fitting pins serving as a reference for connection are inserted. A guide pin 6 for alignment is inserted into the guide hole 4. Optical connector 10
The material of is generally molded plastic. In such an optical connector 10, in order to accurately connect the optical fibers to each other, the hole diameter accuracy and the position accuracy of the holes 2 and 4 are required to be 1 μm or less in the single mode fiber.
【０００４】このような光コネクタ１０の一般的な製造
方法を図７に示す。図７に示すように、コネクタは、上
型２２と下型２３とが組合わさることにより形成される
キャビティ２６内に、注入口２８から樹脂を射出し、射
出成形することにより形成される。その際に、ファイバ
ー挿入孔およびガイド孔を精度良く成形するために、下
型２３に形成してあるキャビティ２６に隣接する凹所３
０内にＶ溝入子２０を装着する。このＶ溝入子２０に
は、位置決めのためのＶ溝１６，１８が形成してある。A general method of manufacturing such an optical connector 10 is shown in FIG. As shown in FIG. 7, the connector is formed by injecting a resin from an injection port 28 into a cavity 26 formed by assembling an upper mold 22 and a lower mold 23 and performing injection molding. At that time, in order to accurately form the fiber insertion hole and the guide hole, the recess 3 adjacent to the cavity 26 formed in the lower mold 23 is formed.
The V-groove insert 20 is mounted in the slot 0. The V-groove insert 20 is provided with V-grooves 16 and 18 for positioning.
【０００５】成形ピン１２，１４の先端は、Ｖ溝入子２
０のＶ溝１６，１８と、上型２２の位置決め用面２４，
２５とにより３点接触で位置決めされる。成形ピン１２
の後端には、ホルダー１３が装着してあり、このホルダ
ー１３と成形ピン１４の後端は、下型２３に形成してあ
る位置決め用凹所３２，３４と上型２２に形成してある
位置決め用凹所３６，３８との間に挟持されて固定され
る。この状態でキャビティ２６に樹脂を注入口２８から
注入し、硬化後に型を開き、成形品である光コネクタを
各成形ピンもろとも取り出し、その後各成形ピン１２，
１４を抜去する。The tips of the molding pins 12 and 14 have V-groove inserts 2
0 V-grooves 16, 18 and positioning surface 24 of the upper die 22,
It is positioned by three-point contact with 25. Forming pin 12
A holder 13 is attached to the rear end of the holder 13 and the rear ends of the holder 13 and the molding pin 14 are formed in the positioning recesses 32 and 34 formed in the lower mold 23 and the upper mold 22. It is sandwiched and fixed between the positioning recesses 36 and 38. In this state, resin is injected into the cavity 26 through the injection port 28, the mold is opened after curing, and the optical connector, which is a molded product, is taken out together with the respective molding pins 12, and then the molding pins 12,
Remove 14
【０００６】この製造方法において光コネクタの性能
（精度）を決めてしまうのはＶ溝入子２０に形成してあ
るＶ溝１６，１８のピッチおよび深さ精度である。プラ
スチックの射出成形であるため、成形品の収縮誤差、変
形等が避けられないため、このＶ溝入子２０には、コネ
クタ精度以上の寸法精度が要求される。そこで、従来で
は、Ｖ溝入子２０は、次のようにして製造することによ
り、精度向上を図っている。Ｖ溝入子２０の材質は、耐
磨耗性を重視し、超硬合金、セラミック等の硬脆材料が
使われるので、Ｖ溝１６，１８の加工は、一般にダイヤ
モンド砥石を使った研削加工で行う。In this manufacturing method, it is the pitch and depth accuracy of the V grooves 16 and 18 formed in the V groove insert 20 that determine the performance (accuracy) of the optical connector. Since it is an injection molding of plastic, shrinkage error and deformation of the molded product cannot be avoided. Therefore, the V-groove insert 20 is required to have a dimensional accuracy higher than the connector accuracy. Therefore, conventionally, the V-groove insert 20 is manufactured as follows to improve the accuracy. The V-groove insert 20 is made of a hard and brittle material such as cemented carbide or ceramic, with emphasis placed on wear resistance, so the V-grooves 16 and 18 are generally ground by using a diamond grindstone. To do.
【０００７】従来のＶ溝の研削加工方法は大きく２つに
分けられる。第１の方法としては、図８に示すような総
形砥石を使った成形研削が挙げられる。この方法では、
Ｖ溝（または台形溝）１８ａの両斜面角度θ0 と同じ角
度θ1にツルーイングされた円盤状の回転砥石（総形砥
石）４０を、所定のピッチおよび深さに位置決めさせ、
Ｖ溝入子と成る加工物（ワーク）２０ａを送り方向Ｘへ
移動させ加工していく。隣接した溝の加工は、ピッチ方
向のみ砥石を所定量移動し、同じ加工を行う。深さ方向
Ｚの加工量は１パスで加工するクリープフィード研削法
と、切込みを数回に分けるプランジ研削法とに分けられ
る。Conventional V-groove grinding methods are roughly divided into two. As a first method, forming grinding using a shaped grindstone as shown in FIG. 8 can be mentioned. in this way,
A disc-shaped rotary grindstone (genuine grindstone) 40 trued at the same angle θ 1 as the both slope angles θ 0 of the V groove (or trapezoidal groove) 18 is positioned at a predetermined pitch and depth.
A workpiece (workpiece) 20a that is a V-groove insert is moved in the feed direction X for machining. The adjacent grooves are processed by moving the grindstone by a predetermined amount only in the pitch direction. The amount of processing in the depth direction Z is divided into a creep feed grinding method of processing in one pass and a plunge grinding method of dividing the cutting into several times.
【０００８】光コネクタの加工に用いられるＶ溝入子２
０を形成するには、細孔成形用のピン位置決め用Ｖ溝
（以下細溝）と、ガイド孔成形用のピン位置決め用Ｖ溝
（以下太溝）とがある場合、細溝加工と太溝加工とで砥
石を交換して行う場合が多い。この加工法の特徴は砥石
の形状をワークに転写させるだけなので、加工機の各軸
の位置決め制御は単純であり、ＮＣプログラミングも容
易である。また加工送りの回数も少ないため加工時間も
短くなり、加工機周囲のゆるやかな温度変化による加工
機自体の精度低下も避けられるため、加工機の精度をワ
ーク精度に十分生かしきれるという利点がある。V-groove insert 2 used for processing an optical connector
In order to form 0, when there are a pin positioning V groove for forming a fine hole (hereinafter referred to as a thin groove) and a pin positioning V groove for forming a guide hole (hereinafter referred to as a thick groove), fine groove processing and a thick groove are performed. In many cases, the grindstone is exchanged for processing. The feature of this processing method is that the shape of the grindstone is simply transferred to the workpiece, so the positioning control of each axis of the processing machine is simple and NC programming is easy. Further, since the number of machining feeds is small, the machining time is shortened, and the precision of the machining machine itself can be prevented from being lowered due to a gentle temperature change around the machining machine.
【０００９】また、第２の方法として、図９（Ａ），
（Ｂ）に示すように、狭角砥石を使ったコンタリング
（プロファイル）研削が挙げられる。この方法では、Ｖ
溝の角度θ0 よりも狭い角度θ2 にツルーイングされた
円盤状の回転砥石４０ａを用い、設計された加工部断面
の輪郭にそって予めプログラミングされたＮＣデータを
基に、図９（Ｂ）に示すように、砥石先端のノーズＲ部
で加工を行う方法である。具体的には輪郭のある一部に
先端を位置決めし、ワーク２０ａを加工送りした後、Ｖ
溝１８ａの斜面に沿ったある位置に、ピッチ方向Ｙおよ
び深さ方向Ｚに、砥石を微少移動させ、送り方向Ｘに加
工送りを行う。この動作を溝全面にわたり繰り返す。As a second method, as shown in FIG.
As shown in (B), contouring (profile) grinding using a narrow-angle grindstone can be mentioned. In this method, V
Using a disk-shaped rotary grindstone 40a trued at an angle θ 2 narrower than the groove angle θ 0 , based on NC data preprogrammed along the designed contour of the cross section of the processed portion, FIG. As shown in (1), this is a method of working at the nose R portion at the tip of the grindstone. Specifically, after the work 20a is processed and fed by positioning the tip on a part with a contour, V
At a certain position along the slope of the groove 18a, the grindstone is slightly moved in the pitch direction Y and the depth direction Z, and the work is fed in the feed direction X. This operation is repeated over the entire surface of the groove.
【００１０】この加工法の特徴は、砥石４０ａの形状精
度、砥粒径（粒度）等の影響を受け難く、一工程（全溝
の加工）中に発生する砥石の磨耗、変形も次の工程で補
正する事ができ、砥石の磨耗、変形にかかわらず常にプ
ログラミング通りのＶ溝形状を実現する事ができるとい
う利点を有する。また、太溝、細溝で砥石を交換する必
要もなく、砥石の位置決めで生ずる誤差を無視できる。The characteristic of this processing method is that it is hardly affected by the shape accuracy of the grindstone 40a, the abrasive grain size (grain size), etc., and the abrasion and deformation of the grindstone occurring during one step (processing of all grooves) are also the following steps. It has the advantage that the V-groove shape can always be realized as programmed regardless of wear and deformation of the grindstone. Further, it is not necessary to replace the grindstone with the thick groove or the thin groove, and the error caused by the positioning of the grindstone can be ignored.
【００１１】[0011]
【発明が解決しようとする課題】ところが、前述した従
来の二つの方法では、それぞれ次に示す問題点を有して
いる。まず図８に示す総形砥石４０を使った成形研削加
工の場合の問題点について述べる。図８に示す方法にお
いて、加工に使用する砥石４０は、ダイヤモンド砥粒を
レジン、メタル等のボンド材で焼き固めた焼成品であ
り、サブミクロンの精度にツルーイングする事は不可能
である。このため、砥石形状を転写させる方法では、満
足するＶ溝の形状精度は得られない。However, the above-mentioned two conventional methods have the following problems, respectively. First, problems in the case of forming and grinding using the shaped grindstone 40 shown in FIG. 8 will be described. In the method shown in FIG. 8, the grindstone 40 used for processing is a fired product obtained by baking diamond abrasive grains with a bond material such as resin or metal, and it is impossible to true to submicron accuracy. Therefore, the method of transferring the shape of the grindstone cannot obtain satisfactory V groove shape accuracy.
【００１２】また、切れ刃砥粒の磨耗、脱落、ボンドの
磨耗、切れ刃砥粒生成を繰り返しながら加工を行う研削
加工では、砥石の磨耗は避けられず、加工の進行につ
れ、Ｖ溝形状も変化していき所望の精度が得られない。
また、砥石表面の砥粒一粒一粒は、ワーク加工面に対し
垂直な面上で回転運動を行うため、砥石表面の微少なう
ねり、凹凸をワークに転写させてしまう。そのため、ワ
ークにはＶ溝長手方向に条痕が表れる。このような凹凸
の条痕を持つ入子を金型に使用すると、ピンとの接触部
近傍で起こる磨耗が多く、金型の寿命を縮めてしまう。Further, in the grinding process in which the cutting edge abrasive grains are repeatedly worn and removed, the bond is worn, and the cutting edge abrasive grains are repeatedly produced, the abrasion of the grindstone is unavoidable, and the V groove shape is also increased as the machining progresses. It changes and the desired accuracy cannot be obtained.
Further, since each of the abrasive grains on the surface of the grindstone makes a rotary motion on a plane perpendicular to the work surface, a slight waviness or unevenness on the surface of the grindstone is transferred to the work. Therefore, a scratch appears on the work in the longitudinal direction of the V groove. When the insert having such uneven ridges is used for the mold, much wear occurs near the contact portion with the pin, which shortens the life of the mold.
【００１３】次に、図９に示す狭角砥石を使ったコンタ
リング研削加工方法の問題点について述べる。この方法
では、ある加工点への砥石の位置決めに、常にピッチ方
向と深さ方向の２軸を駆動する必要があるため、プラン
ジ研削の場合に比べ、軸の位置決め誤差、ピッチング、
ヨーイングの誤差も２倍になってしまうため、加工精度
に狂いが生じやすい。また、砥石先端の極一部で溝面全
てを加工するため、加工送りの回数が非常に多くなり、
加工時間が長くなってしまう。加工時間が長くなると、
加工機自体が周囲の温度変化の影響を受け易くなり精度
低下にもつながる。また、加工送りの回数を減らすた
め、輪郭送り量を粗くすると、後述する表面粗さも悪く
なる。Next, problems of the contouring grinding method using the narrow-angle grindstone shown in FIG. 9 will be described. In this method, it is necessary to always drive two axes in the pitch direction and the depth direction to position the grindstone at a certain processing point. Therefore, as compared with the plunge grinding, axis positioning error, pitching,
Since the yawing error is also doubled, the processing accuracy tends to be incorrect. In addition, since the entire groove surface is machined with a very small part of the tip of the grindstone, the number of machining feeds is extremely large,
Processing time becomes long. As the processing time increases,
The processing machine itself is easily affected by changes in ambient temperature, leading to a decrease in accuracy. Further, if the contour feed amount is roughened in order to reduce the number of machining feeds, the surface roughness described later also becomes poor.
【００１４】さらに、砥石先端の極一部で加工するた
め、輪郭送り量をどんなに細かくしても、同送り量のピ
ッチで凹凸が条痕として加工表面に表れる。この条痕も
プランジ研削による条痕の場合と同じように金型の寿命
を縮めてしまう。さらにまた、砥石の変形、磨耗は補正
できるものの、工程中に均一な磨耗が進むとは限らない
ので、何度も補正を繰り返し、ピッチ、深さを所望の精
度にしていかなければならない。Further, since the work is carried out only on a very small part of the tip of the grindstone, no matter how fine the contour feed amount is, irregularities appear as streaks on the work surface at the pitch of the same feed amount. This striation also shortens the life of the die as in the case of plunge grinding. Furthermore, although the deformation and wear of the grindstone can be corrected, uniform wear does not always progress during the process. Therefore, the correction must be repeated many times to achieve the desired accuracy in pitch and depth.
【００１５】本発明は、上記従来の課題を解決するため
のものであり、その目的は、光コネクタの成形に使われ
るＶ溝入子などの溝を有する部品を製造する際に、砥石
の形状精度、表面性状に左右されず、かつ砥石の磨耗が
少なく、安定した研削加工が可能であり、形状精度、寸
法精度、表面粗さを向上させることができる溝加工方法
および溝加工装置を提供することである。The present invention is to solve the above-mentioned conventional problems, and an object of the present invention is to form a shape of a grindstone when manufacturing a component having a groove such as a V-groove insert used for molding an optical connector. Provided are a groove machining method and a groove machining apparatus that are not affected by precision and surface texture, have less abrasion of a grindstone, can perform stable grinding, and can improve shape precision, dimensional precision, and surface roughness. That is.
【００１６】[0016]
【課題を解決するための手段】本発明の溝加工方法は、
一対の傾斜面で構成され、開口部側が底部側よりも広く
構成された溝を有する、光コネクタ、ファイバーアレ
イ、メカニカルスプライス、導波路コネクタ、光スイッ
チ用コネクタ、光コネクタ製造用金型の入子のいずれか
の被加工対象物の溝加工方法であって、回転軸に垂直な
平坦面からなる第１の切削面と、この第１の切削面と所
定の角度をなす第２の切削面とをもつ回転型砥石を用
い、前記被加工対象物に形成すべき溝の一方の傾斜面に
対して前記回転型砥石の回転軸が垂直となるように配置
するとともに、前記回転型砥石を前記第１の切削面が前
記被加工対象物に形成すべき溝の一方の傾斜面の形成位
置に位置するように位置決めし、更に前記回転型砥石と
前記被加工対象物とを形成すべき溝の形成すべき方向に
相対的に移動して、前記第１の切削面により形成すべき
溝の一方の傾斜面を加工した後、前記被加工対象物を前
記回転型砥石に対して１８０度相対的に回転し、次に前
記回転型砥石を前記第１の切削面が前記被加工対象物に
形成すべき溝の他方の傾斜面の形成位置に位置するよう
に位置決めし、更に前記回転型砥石と前記被加工対象物
とを形成すべき溝の形成すべき方向に相対的に移動し
て、前記第１の切削面により形成すべき溝の他方の傾斜
面を加工することを特徴とする。The groove machining method of the present invention comprises:
An optical connector, a fiber array, a mechanical splice, a waveguide connector, an optical switch connector, an optical connector manufacturing die insert, which has a groove formed of a pair of inclined surfaces and whose opening side is wider than the bottom side. And a first cutting surface formed of a flat surface perpendicular to the rotation axis, and a second cutting surface forming a predetermined angle with the first cutting surface. Using a rotary grindstone having a, the rotation axis of the rotary grindstone is arranged to be perpendicular to one inclined surface of the groove to be formed in the workpiece, the rotary grindstone The cutting surface of No. 1 is positioned so as to be positioned at the formation position of one inclined surface of the groove to be formed in the object to be processed, and further the groove to be formed with the rotary grindstone and the object to be processed is formed. Move relative to the direction you should After processing one inclined surface of the groove to be formed by the first cutting surface, the workpiece is rotated 180 degrees relative to the rotary grindstone, and then the rotary grindstone is moved to the first The cutting surface of No. 1 is positioned so as to be located at the formation position of the other inclined surface of the groove to be formed in the object to be processed, and the groove for forming the rotary grindstone and the object to be processed is further formed. It is characterized in that the other inclined surface of the groove to be formed by the first cutting surface is processed by moving relatively in the desired direction.
【００１７】また、本発明の溝加工装置は、一対の傾斜
面で構成され、開口部側が底部側よりも広く構成された
溝を有する、光コネクタ、ファイバーアレイ、メカニカ
ルスプライス、導波路コネクタ、光スイッチ用コネク
タ、光コネクタ製造用金型の入子のいずれかの被加工対
象物の溝加工装置であって、回転軸に垂直な平坦面から
なる第１の切削面と、形成すべき溝の傾斜面間のなす角
度よりも狭い角度で前記第１の切削面に対して傾斜した
円錐面からなる第２の切削面とをもち、前記回転軸が形
成すべき溝の一方の傾斜面に対して垂直となるように配
置された回転型砥石と、回転する前記回転型砥石の前記
被加工対象物に対する姿勢を一定に保ちつつ、当該回転
型砥石を前記第１の切削面が前記被加工対象物に形成す
べき溝の一方の傾斜面の形成位置に位置するように位置
決めする位置決め手段と、前記回転型砥石と前記被加工
対象物とを前記形成すべき溝の形成方向に相対移動させ
る相対移動手段と、前記形成すべき溝の一方の傾斜面を
形成した後、更に前記回転型砥石の第１の切削面により
形成すべき溝の他方の傾斜面を形成するために前記被加
工対象物を前記回転型砥石に対して１８０度相対的に回
転させる反転手段とを有する。Further, the groove processing apparatus of the present invention comprises an optical connector, a fiber array, a mechanical splice, a waveguide connector, an optical fiber, which has a groove which is composed of a pair of inclined surfaces and whose opening side is wider than the bottom side. A groove processing apparatus for a target object to be processed, which is either a switch connector or an optical connector manufacturing die, comprising a first cutting surface formed of a flat surface perpendicular to a rotation axis and a groove to be formed. A second cutting surface formed of a conical surface inclined with respect to the first cutting surface at an angle narrower than an angle formed between the inclined surfaces, and with respect to one inclined surface of the groove to be formed by the rotating shaft. And a rotary grindstone arranged so as to be vertical, and the posture of the rotating rotary grindstone with respect to the object to be processed is kept constant, the rotary grindstone has the first cutting surface as the object to be processed. One of the grooves to be formed in the object Positioning means for positioning so as to be positioned at the formation position, relative movement means for relatively moving the rotary grindstone and the workpiece in the forming direction of the groove to be formed, and one of the grooves to be formed. 180 ° relative to the rotary grindstone in order to form the other inclined surface of the groove to be formed by the first cutting surface of the rotary grindstone after forming the slanted surface of the rotary grindstone. And a reversing means for rotating the same.
【００１８】[0018]
【作用】本発明では、回転型砥石の第１の切削面側にお
ける加工に作用する砥粒一つを注目した場合、その軌跡
は、回転型砥石の回転運動と、溝を形成すべき被加工対
象物の送り運動とにより、１つの平面をむらなく移動す
ることになる。また、この第１の切削面で形成すべき溝
の傾斜面を加工する場合、１つの砥粒が回転しながら溝
内に入り、溝外へ出ていくまで連続的に被加工対象物に
作用する。以上のことから、従来技術と異なり、断続的
かつ直線的に砥粒が加工に作用しないため、本発明方法
では、Ｖ溝斜面の平坦度および表面性状（表面粗さが小
さい）は極めて向上する。In the present invention, when attention is paid to one abrasive grain acting on the first cutting surface side of the rotary grindstone, its locus is the rotational movement of the rotary grindstone and the workpiece to be processed to form the groove. The movement of the object causes the object to move uniformly on one plane. Further, when processing the inclined surface of the groove to be formed by this first cutting surface, one abrasive grain continuously rotates and acts on the object to be processed until it goes out of the groove. To do. From the above, unlike the prior art, since the abrasive grains do not act intermittently and linearly on the processing, in the method of the present invention, the flatness and surface quality (small surface roughness) of the V groove slope are significantly improved. .
【００１９】また、従来技術と異なり、２軸を制御しな
がら加工送りを何度も行う必要がないため、加工機の運
動性能を十分ワークに反映でき、すなわち加工時間も短
くてすむので、周囲の温度変化の影響を受けにくく、高
精度な溝を被加工対象物に加工することができる。ま
た、回転型砥石の磨耗についても、回転型砥石の第１の
切削面側から（平面的に）均一に磨耗していくため、常
に回転型砥石の第１の切削面の平坦度は保たれ、加工す
る溝の傾斜面の平坦度も常に均一に維持することができ
る。Further, unlike the prior art, since it is not necessary to feed the machining many times while controlling the two axes, the motion performance of the machining machine can be sufficiently reflected on the work, that is, the machining time can be shortened. The groove is not easily affected by the temperature change and the high-precision groove can be processed on the object to be processed. Further, as to the wear of the rotary grindstone, the flatness of the first cut surface of the rotary grindstone is always maintained because it is worn uniformly (planarly) from the first cutting surface side of the rotary grindstone. The flatness of the inclined surface of the groove to be processed can always be kept uniform.
【００２０】[0020]
【実施例】以下、本発明の溝加工方法および溝加工装置
の一実施例について図面に基づき詳細に説明する。図１
は本発明の一実施例に係る溝加工装置および溝加工方法
を示す概略斜視図、図２は同実施例に係る加工工程を示
す概略図、図３は本発明の他の実施例に係る加工工程を
示す概略図、図４は本発明のその他の実施例に係る溝加
工方法を示す概略斜視図、図５は本発明の溝加工方法で
加工可能な光ファイバー関連部品の概略図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the groove processing method and groove processing apparatus of the present invention will be described in detail below with reference to the drawings. Figure 1
Is a schematic perspective view showing a groove processing apparatus and a groove processing method according to an embodiment of the present invention, FIG. 2 is a schematic view showing a processing step according to the same embodiment, and FIG. 3 is a processing according to another embodiment of the present invention. 4 is a schematic view showing the steps, FIG. 4 is a schematic perspective view showing a groove processing method according to another embodiment of the present invention, and FIG. 5 is a schematic view of an optical fiber-related component which can be processed by the groove processing method of the present invention.
【００２１】図１，２に示す実施例は、光コネクタを射
出成形で製造する際に用いられる図８に示すＶ溝入子を
製造する場合を示し、ワーク５０の上部に、比較的小さ
いＶ溝５６（細溝５６とも言う）と比較的大きいＶ溝５
８（太溝５８とも言う）とを複数形成する。図１に示す
ように、本実施例の溝加工方法に使用される溝加工装置
としての研削盤は、ワーク５０を回転砥石５２に対し送
るテーブル５５を持ったＸ軸と、ワーク５０と砥石５２
とをピッチ方向Ｙおよび深さ方向Ｚに相対的に移動させ
るＹ，Ｚ軸を持ち、各軸は互いに直交している。The embodiment shown in FIGS. 1 and 2 shows a case where the V-groove insert shown in FIG. 8 used for manufacturing an optical connector by injection molding is manufactured. Groove 56 (also called thin groove 56) and relatively large V groove 5
8 (also referred to as thick grooves 58) are formed. As shown in FIG. 1, a grinder as a groove machining device used in the groove machining method of the present embodiment has an X-axis having a table 55 for feeding the work 50 to a rotary grindstone 52, the work 50 and the grindstone 52.
It has Y and Z axes for moving and relative to each other in the pitch direction Y and the depth direction Z, and the axes are orthogonal to each other.
【００２２】砥石５２を回転させるスピンドル（主軸）
５４の回転軸はＹ，Ｚ平面上にあり且つ、Ｘ軸方向に形
成されるＶ溝５６，５８の片方の傾斜面に垂直に配置さ
せている。砥石５２としては、カップ型砥石が用いられ
る。このカップ型砥石５２は、スピンドル５４に対して
垂直で且つ同心である環形面を端面（第１の切削面）５
２ａに備えている。この端面５２ａと外周円錐面（第２
の切削面）５２ｂとの角度は、形成しようとするＶ溝５
６，５８の角度よりも小さく構成してある。たとえば、
得ようとするＶ溝５６，５８の傾斜面角度が６０度であ
る場合には、スピンドル軸５４の傾斜角度を３０度に設
定し、端面５２ａと外周円錐面５２ｂとの角度を３０度
とする。Ｘ軸上で移動するテーブル５５上にはＺ軸と平
行な回転軸を持った反転テーブル６０を備えている。Spindle (spindle) for rotating the grindstone 52
The rotation axis of 54 is on the Y and Z planes, and is arranged perpendicular to one inclined surface of the V grooves 56 and 58 formed in the X axis direction. A cup-shaped grindstone is used as the grindstone 52. The cup-shaped grindstone 52 has a ring-shaped surface that is perpendicular and concentric to the spindle 54 as an end surface (first cutting surface) 5
Prepare for 2a. The end surface 52a and the outer peripheral conical surface (second
The cutting surface) 52b has an angle with the V groove 5 to be formed.
The angle is smaller than 6, 58. For example,
When the V-grooves 56, 58 to be obtained have an inclined surface angle of 60 degrees, the inclination angle of the spindle shaft 54 is set to 30 degrees, and the angle between the end surface 52a and the outer peripheral conical surface 52b is set to 30 degrees. . A reversing table 60 having a rotation axis parallel to the Z axis is provided on the table 55 that moves on the X axis.
【００２３】本実施例では、このような溝加工装置を用
い、Ｘ軸上で往復運動する反転テーブル６０上にセット
されたワーク５０に対し、まず、図２（Ａ）に示すよう
に、所定の位置で回転している砥石５２を位置決めす
る。この砥石５２は、Ｘ軸の送りにより、砥石５２の端
面５２ａおよび円錐面５２ｂからなる角度の設計値角度
に配置されるので、１回の加工送りで所望の角度の溝が
得られる。In the present embodiment, using such a groove processing apparatus, first, as shown in FIG. 2A, a predetermined value is given to the work 50 set on the reversing table 60 that reciprocates on the X axis. The grindstone 52 rotating at the position is positioned. The grindstone 52 is arranged at the design value angle of the angle formed by the end surface 52a and the conical surface 52b of the grindstone 52 by the X-axis feed, so that a groove having a desired angle can be obtained by one machining feed.
【００２４】つまり、太溝５８および細溝５６における
片傾斜面の位置に、予めプログラミングされたＮＣデー
タを基に、Ｙ，Ｚ軸で位置決めし、この工程を繰り返せ
ば片方の傾斜面が加工できる。この加工工程を図２
（Ｂ）〜同図（Ｃ）に示す。In other words, by positioning the sloping surface in the thick groove 58 and the narrow groove 56 on the Y and Z axes based on the pre-programmed NC data, and repeating this process, one sloping surface can be processed. . This machining process is shown in Figure 2.
(B) to (C) of the same figure.
【００２５】次に、反転テーブル６０により、θ＝１８
０°の回転角度で正確にワーク５０を反転させ、所定の
位置から同一のプログラムで加工を行えばほぼ対称な形
のＶ溝５６，５８が完成する。この加工工程を図２
（Ｄ）〜（Ｇ）に示す。Next, according to the inversion table 60, θ = 18
If the workpiece 50 is accurately inverted at a rotation angle of 0 ° and machining is performed from a predetermined position with the same program, the V grooves 56 and 58 having substantially symmetrical shapes are completed. This machining process is shown in Figure 2.
It shows in (D)-(G).
【００２６】このような本実施例の方法によれば、砥石
５２の端面５２ａ側における加工に作用する砥粒一つを
注目した場合、その軌跡は、砥石５２の回転運動と、Ｖ
溝５６，５８を形成すべきワーク５０の送り運動とによ
り、１つの平面をむらなく移動することになる。また、
この端面５２ａで溝の傾斜面を加工する場合、１つの砥
粒が回転しながら溝内に入り、溝外へ出ていくまで連続
的にワークに作用する。According to the method of this embodiment, when attention is paid to one abrasive grain acting on the end face 52a side of the grindstone 52, its locus is the rotational movement of the grindstone 52 and V.
The movement of the work 50 in which the grooves 56 and 58 are to be formed makes it possible to move one plane evenly. Also,
When processing the inclined surface of the groove with this end surface 52a, one abrasive grain continuously acts on the work until it enters the groove while rotating and goes out of the groove.
【００２７】以上のことから、従来技術と異なり、断続
的かつ直線的に砥粒が加工に作用しないため、本発明の
溝加工方法では、Ｖ溝斜面の平坦度および表面性状（表
面粗さが小さい）は極めて向上する。From the above, unlike the prior art, since the abrasive grains do not act on the machining intermittently and linearly, in the groove machining method of the present invention, the flatness and surface texture (surface roughness of the V groove slope) Small) is greatly improved.
【００２８】また、従来技術と異なり、２軸を制御しな
がら加工送りを何度も行う必要がないため、加工機の運
動性能を十分ワークに反映でき、すなわち加工時間も短
くてすむので、周囲の温度変化の影響を受けにくく、高
精度なＶ溝５６，５８を形成することができる。また、
砥石５２の磨耗についても、砥石の端面５２ａ側から
（平面的に）均一に磨耗していくため、常に砥石端面５
２ａの平坦度は保たれ、加工する溝斜面の平坦度も常に
均一に維持することができる。したがって、位置決めと
して用いて最適なＶ溝が形成された図７に示すＶ溝入子
２０を容易且つ高精度に加工することができる。Further, unlike the prior art, since it is not necessary to repeatedly perform the machining feed while controlling the two axes, the motion performance of the machining machine can be sufficiently reflected in the work, that is, the machining time can be shortened. The V-shaped grooves 56 and 58 can be formed with high accuracy and less affected by the temperature change. Also,
As for the wear of the grindstone 52, the grindstone end surface 5a is always worn from the end surface 52a side of the grindstone (planarly) evenly.
The flatness of 2a is maintained, and the flatness of the groove slope to be processed can always be maintained uniform. Therefore, the V-groove insert 20 shown in FIG. 7 in which an optimal V-groove is formed for use in positioning can be easily and highly accurately processed.
【００２９】なお、本発明は、上述した実施例に限定さ
れず、本発明の範囲内で、種々に改変することができ
る。図３は他の実施例を示す。この実施例では、同図
（Ａ）に示すように、研削盤でＶ溝の加工を行う前に、
予め汎用の研削盤で荒加工を行う。そうすれば、仕上代
は、たとえば約４０μｍ程度と少なく、仕上砥石の磨耗
に対する負荷を少なくすることができる。また、同一の
研削盤を用いて、荒仕上砥石を使い分けて加工すること
もできる。The present invention is not limited to the above-mentioned embodiments, but can be variously modified within the scope of the present invention. FIG. 3 shows another embodiment. In this embodiment, as shown in FIG. 3A, before the V groove is processed by the grinder,
Rough processing is performed in advance with a general-purpose grinder. Then, the finishing allowance is small, for example, about 40 μm, and the load on the abrasion of the finishing grindstone can be reduced. Further, it is also possible to use the same grinder and separately process rough finishing grindstones.
【００３０】位置決めに際しては、研削盤の反転テーブ
ル上に荒加工したワークをセットし、荒加工された太溝
５８ａの一方に砥石５２を位置決めする。砥石５２の位
置決めは、直接砥石５２をワーク５０（この場合は荒加
工された斜面）に接触させるか、ワークの不要の部分、
またはダミーの部品に実際に溝を加工し、荒加工された
Ｖ溝とのオフセットを計測し、位置決めする方法があ
る。At the time of positioning, the rough-worked work is set on the reversing table of the grinder, and the grindstone 52 is positioned in one of the rough-worked thick grooves 58a. The positioning of the grindstone 52 is performed by directly contacting the grindstone 52 with the work 50 (in this case, a rough-processed slope), or by an unnecessary portion of the work,
Alternatively, there is a method of actually processing a groove on a dummy part, measuring an offset from the rough-processed V groove, and performing positioning.
【００３１】次に、図３（Ｂ）に示すように、砥石５２
を回転させワーク５０を加工送りさせ太溝５８ａの片方
の傾斜面の加工を行う。次に、Ｙ軸、Ｚ軸を制御し細溝
５６ａの位置に砥石５２を位置決めし、加工を行う。こ
の加工を、同図（Ｃ）に示すように、全溝について行っ
た後に、同図（Ｄ）に示すように、回転テーブル６０を
反転させて、ワーク５０を１８０°正確に反転させる。
ワーク５０の中心と回転中心がずれている場合、最初に
砥石５２を位置決めした位置では仕上代が違ってくるた
め、同図（Ｅ）に示すように、再度Ｙ軸方向のみ砥石５
２の位置決めを行う。Next, as shown in FIG.
Is rotated to feed the workpiece 50, and one inclined surface of the thick groove 58a is processed. Next, the Y-axis and the Z-axis are controlled to position the grindstone 52 at the position of the narrow groove 56a, and processing is performed. After this processing is performed for all the grooves as shown in FIG. 6C, the rotary table 60 is inverted and the workpiece 50 is inverted 180 ° accurately as shown in FIG.
When the center of rotation of the workpiece 50 is deviated from the center of rotation, the finishing allowance differs at the position where the grindstone 52 is first positioned. Therefore, as shown in FIG.
Position two.
【００３２】次に、同図（Ｆ）に示すように、もう一方
の傾斜面を加工していく。そして、Ｖ溝が所望の深さに
なるまで深さ方向のみ調整し、（Ｂ）〜（Ｆ）の工程を
繰り返し加工していく。ただし、砥石の位置決めはそれ
ぞれ最初の１回だけ行うだけでよい。Next, as shown in FIG. 6F, the other inclined surface is processed. Then, only the depth direction is adjusted until the V groove has a desired depth, and the steps (B) to (F) are repeatedly processed. However, the positioning of the grindstone only needs to be performed once at the beginning.
【００３３】図４は、さらにその他の実施例を示す。こ
の実施例では、スピンドル軸５４ｃを水平のままとし、
ワーク５０を所望角度に傾け加工を行う。FIG. 4 shows still another embodiment. In this embodiment, the spindle shaft 54c remains horizontal,
The workpiece 50 is tilted at a desired angle and processed.
【００３４】また、本発明の溝加工方法により加工され
る部品としては、光コネクタを製造するために用いられ
る図７に示すＶ溝入子２０のみでなく、図５に示すよう
な光ファイバー関連部品などが考えられる。図５（Ａ）
は、光コネクタ７０を示し、この光コネクタ７０では、
光ファイバーの挿入孔７２および位置決めピンの嵌合孔
７４がＶ溝形状となっているので、これらを、本発明の
溝加工方法を用いて形成することができる。同図（Ｂ）
は、ファイバーアレイ７６を示し、光ファイバー挿入孔
７８がＶ溝形状となっているので、これらを、本発明の
溝加工方法を用いて形成することができる。同図（Ｃ）
は、メカニカルプライス７９を示し、光ファイバー挿入
孔８０がＶ溝形状となっているので、これらを、本発明
の溝加工方法を用いて形成することができる。同図
（Ｄ）は導波路コネクタ８２を示し、位置決めピンの嵌
合孔８４がＶ溝形状となっているので、これを、本発明
の方法を用いて形成することができる。同図（Ｅ）は光
スイッチ用コネクタ８６を示し、光ファイバーの挿入孔
８８がＶ溝形状になっていると共に、位置決めピンの嵌
合孔９０が台形溝形状となっているので、これらを、本
発明の溝加工方法を用いて形成することができる。Further, as the component processed by the groove processing method of the present invention, not only the V-groove insert 20 shown in FIG. 7 used for manufacturing an optical connector but also an optical fiber related component as shown in FIG. And so on. Figure 5 (A)
Indicates an optical connector 70. In this optical connector 70,
Since the insertion hole 72 of the optical fiber and the fitting hole 74 of the positioning pin have the V-groove shape, these can be formed by using the groove processing method of the present invention. Same figure (B)
Shows the fiber array 76, and since the optical fiber insertion hole 78 has a V groove shape, these can be formed by using the groove processing method of the present invention. The same figure (C)
Indicates a mechanical price 79, and the optical fiber insertion hole 80 has a V-groove shape, so that these can be formed using the groove processing method of the present invention. FIG. 3D shows the waveguide connector 82, and the fitting hole 84 of the positioning pin has a V-groove shape, which can be formed using the method of the present invention. FIG. 6E shows the optical switch connector 86, in which the insertion hole 88 for the optical fiber has a V-groove shape and the fitting hole 90 for the positioning pin has a trapezoidal groove shape. It can be formed by using the groove processing method of the invention.
【００３５】[0035]
【発明の効果】以上説明してきたように、本発明によれ
ば、砥石を総形に加工する（ツルーイング）従来例に比
べ、カップ砥石のように側面で加工する回転型砥石であ
ってもツルーイングすることは容易であり、形状精度
（総形加工では立体的精度を出す必要があるのに対し、
本発明の回転型砥石では端面の平坦度のみの精度）も出
しやすいことから良好な溝の傾斜面の加工精度が得られ
る。また、本発明の場合、回転型砥石の磨耗変形が直
接、溝の傾斜面の形状精度の低下につながらず、加工面
に作用する砥粒数が多いことから磨耗の進行も非常に遅
い。よって所望の形状、深さ、ピッチ精度が出しやす
い。As described above, according to the present invention, as compared with the conventional example in which a grindstone is machined into a whole shape (truing), even a rotary grindstone that is machined on the side like a cup grindstone is truing. It is easy to do, and shape accuracy (though it is necessary to obtain three-dimensional accuracy in forming processing,
With the rotary grindstone of the present invention, it is easy to obtain the accuracy of only the flatness of the end face), so that good processing accuracy of the inclined surface of the groove can be obtained. Further, in the case of the present invention, the wear deformation of the rotary grindstone does not directly lead to a decrease in the shape accuracy of the inclined surface of the groove, and the number of abrasive grains acting on the processed surface is large, so that the progress of wear is very slow. Therefore, it is easy to obtain a desired shape, depth, and pitch accuracy.
【００３６】さらに、本発明では、回転型砥石における
砥粒の軌跡が、加工面上を平面的に、かつ重複している
ため、極めて表面性状（表面粗さが小さい）のよい溝の
傾斜面が得られる。すなわち、条痕がおきにくい。さら
にまた、従来のプロファイル研削に比較し、複雑（１溝
当たり２軸を使う）な動きを必要としないため、加工機
の精度を十分生かせ、加工能率も良いため短時間で高精
度な傾斜面の加工ができる。したがって、本発明の方法
で形成した溝の傾斜面は、光ファイバーなどの高精度な
位置決めが必要とされる位置決め手段として有効に用い
ることができ、この溝が形成してある部品を、光コネク
タ成形用Ｖ溝入子または光コネクタ自体として有効に用
いることができる。Further, according to the present invention, since the loci of the abrasive grains in the rotary grindstone are planar and overlapping on the processed surface, the inclined surface of the groove having a very good surface texture (small surface roughness). Is obtained. That is, streaks are unlikely to occur. Furthermore, compared to conventional profile grinding, it does not require complicated movements (uses two axes per groove), so the precision of the processing machine can be fully utilized and the machining efficiency is also good, so a highly accurate inclined surface in a short time. Can be processed. Therefore, the inclined surface of the groove formed by the method of the present invention can be effectively used as a positioning means such as an optical fiber that requires highly accurate positioning. It can be effectively used as a V-groove insert or an optical connector itself.
【図１】本発明の一実施例に係る溝加工装置および溝加
工方法を示す概略斜視図である。FIG. 1 is a schematic perspective view showing a groove processing apparatus and a groove processing method according to an embodiment of the present invention.
【図２】同実施例に係る加工工程を示す概略図である。FIG. 2 is a schematic view showing a processing step according to the embodiment.
【図３】本発明の他の実施例に係る加工工程を示す概略
図である。FIG. 3 is a schematic view showing a processing step according to another embodiment of the present invention.
【図４】本発明のその他の実施例に係る溝加工装置およ
び溝加工方法を示す概略斜視図である。FIG. 4 is a schematic perspective view showing a groove processing apparatus and a groove processing method according to another embodiment of the present invention.
【図５】本発明の溝加工方法により加工可能な光ファイ
バー関連部品の概略図である。FIG. 5 is a schematic view of an optical fiber-related component that can be processed by the groove processing method of the present invention.
【図６】一般的な光コネクタの分解斜視図である。FIG. 6 is an exploded perspective view of a general optical connector.
【図７】図６に示す光コネクタの製造装置を示す分解斜
視図である。7 is an exploded perspective view showing a manufacturing apparatus of the optical connector shown in FIG.
【図８】図７に示すＶ溝入子を従来技術で製造する例を
示す斜視図である。8 is a perspective view showing an example of manufacturing the V-groove insert shown in FIG. 7 by a conventional technique.
【図９】図７に示すＶ溝入子を他の従来技術で製造する
例を示す斜視図である。9 is a perspective view showing an example of manufacturing the V-groove insert shown in FIG. 7 by another conventional technique.
２０… Ｖ溝入子 ５０… ワーク ５２… 砥石 ５２ａ…端面 ５２ｂ…外周面 ５４… スピンドル軸 ５６… Ｖ溝（細溝） ５８… Ｖ溝（太溝） ６０… 回転テーブル 20 ... V groove insert 50 ... Work 52 ... Whetstone 52a ... end face 52b ... Outer peripheral surface 54 ... Spindle shaft 56 ... V groove (fine groove) 58 ... V groove (thick groove) 60 ... rotary table
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平３−196956（ＪＰ，Ａ) 特開 平４−310359（ＪＰ，Ａ) 特開 昭56−56336（ＪＰ，Ａ) 特開 平３−214109（ＪＰ，Ａ) 特開 昭62−39177（ＪＰ，Ａ) 特公 昭42−15998（ＪＰ，Ｂ１) 特公 平３−27341（ＪＰ，Ｂ２) (58)調査した分野(Int.Cl.7，ＤＢ名) B23D 1/08 B24B 1/00 - 1/04 B24B 9/00 - 19/28 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-3-196956 (JP, A) JP-A-4-310359 (JP, A) JP-A-56-56336 (JP, A) JP-A-3- 214109 (JP, A) JP 62-39177 (JP, A) JP 42-15998 (JP, B1) JP 3-27341 (JP, B2) (58) Fields investigated (Int.Cl. 7 , DB name) B23D 1/08 B24B 1/00-1/04 B24B 9/00-19/28
Claims (4)
部側よりも広く構成された溝を有する、光コネクタ、フ
ァイバーアレイ、メカニカルスプライス、導波路コネク
タ、光スイッチ用コネクタ、光コネクタ製造用金型の入
子のいずれかの被加工対象物の溝加工方法であって、 回転軸に垂直な平坦面からなる第１の切削面と、この第
１の切削面と所定の角度をなす第２の切削面とをもつ回
転型砥石を用い、 前記被加工対象物に形成すべき溝の一方の傾斜面に対し
て前記回転型砥石の回転軸が垂直となるように配置する
とともに、前記回転型砥石を前記第１の切削面が前記被
加工対象物に形成すべき溝の一方の傾斜面の形成位置に
位置するように位置決めし、更に前記回転型砥石と前記
被加工対象物とを形成すべき溝の形成すべき方向に相対
的に移動して、前記第１の切削面により形成すべき溝の
一方の傾斜面を加工した後、前記被加工対象物を前記回
転型砥石に対して１８０度相対的に回転し、次に前記回
転型砥石を前記第１の切削面が前記被加工対象物に形成
すべき溝の他方の傾斜面の形成位置に位置するように位
置決めし、更に前記回転型砥石と前記被加工対象物とを
形成すべき溝の形成すべき方向に相対的に移動して、前
記第１の切削面により形成すべき溝の他方の傾斜面を加
工することを特徴とする 溝加工方法。1. An optical connector, a fiber array, a mechanical splice, a waveguide connector, an optical switch connector, and an optical connector for manufacturing, which has a groove formed of a pair of inclined surfaces and whose opening side is wider than the bottom side. A method for grooving an object to be processed in any one of a mold insert, comprising: a first cutting surface formed of a flat surface perpendicular to a rotation axis; and a first cutting surface forming a predetermined angle with the first cutting surface. A rotary grindstone having two cutting surfaces is used, and the rotary grindstone is arranged such that the rotation axis of the grindstone is perpendicular to one inclined surface of the groove to be formed in the object to be processed. The grinding wheel is positioned such that the first cutting surface is located at the formation position of one inclined surface of the groove to be formed in the object to be processed, and the rotary grinding wheel and the object to be processed are further formed. direction relative to be formed should do groove Go and after processing one of the inclined surface of the groove to be formed by said first cutting surface, the 180 ° rotated relative to the work object with respect to the rotary grinding stone, then the rotation The grinding wheel is positioned so that the first cutting surface is located at the formation position of the other inclined surface of the groove to be formed in the object to be processed, and the rotary grinding wheel and the object to be processed are further arranged.
Move relative to the direction to be formed to be formed grooves, grooves wherein the processing the other inclined surface of the groove to be formed by the first cutting surface.
のなす角度よりも狭い角度で前記第１の切削面に対して
傾斜した円錐面からなる 請求項１に記載の溝加工方法。2. The groove machining according to claim 1, wherein the second cutting surface is a conical surface inclined with respect to the first cutting surface at an angle narrower than an angle formed between the inclined surfaces of the groove. Method.
のち、前記回転型砥石を用いて各傾斜面を加工する 請求項１、または２のいずれかに記載の溝加工方法。3. The groove processing method according to claim 1, wherein after the groove is roughly processed on the object to be processed, each inclined surface is processed by using the rotary grindstone.
部側よりも広く構成された溝を有する、光コネクタ、フ
ァイバーアレイ、メカニカルスプライス、導波路コネク
タ、光スイッチ用コネクタ、光コネクタ製造用金型の入
子のいずれかの被加工対象物の溝加工装置であって、 回転軸に垂直な平坦面からなる第１の切削面と、形成す
べき溝の傾斜面間のなす角度よりも狭い角度で前記第１
の切削面に対して傾斜した円錐面からなる第２の切削面
とをもち、前記回転軸が形成すべき溝の一方の傾斜面に
対して垂直となるように配置された回転型砥石と、 回転する前記回転型砥石の前記被加工対象物に対する姿
勢を一定に保ちつつ、当該回転型砥石を前記第１の切削
面が前記被加工対象物に形成すべき溝の一方の傾斜面の
形成位置に位置するように位置決めする位置決め手段
と、 前記回転型砥石と前記被加工対象物とを前記形成すべき
溝の形成方向に相対移動させる相対移動手段と、 前記形成すべき溝の一方の傾斜面を形成した後、更に前
記回転型砥石の第１の切削面により形成すべき溝の他方
の傾斜面を形成するために前記被加工対象物を前記回転
型砥石に対して１８０度相対的に回転させる反転手段
と、 を有する溝加工装置。4. An optical connector, a fiber array, a mechanical splice, a waveguide connector, an optical switch connector, and an optical connector for manufacturing, which has a groove formed of a pair of inclined surfaces and whose opening side is wider than the bottom side. A groove machining apparatus for an object to be machined in one of mold inserts, the angle being formed between a first cutting surface formed of a flat surface perpendicular to a rotation axis and an inclined surface of a groove to be formed. The first at a narrow angle
A rotary grinding wheel having a second cutting surface formed of a conical surface inclined with respect to the cutting surface, and being arranged so as to be perpendicular to one inclined surface of the groove in which the rotation axis is to be formed, Forming position of one inclined surface of the groove in which the first cutting surface of the rotating grindstone is to be formed in the object to be processed while keeping the attitude of the rotating grindstone to be constant with respect to the object to be processed. and positioning means for positioning so as to be positioned, and relative movement means for relatively moving the said rotary grindstone and said object to be processed in the forming direction of <br/> groove to be the formation of the grooves to be the formation After forming one inclined surface, the object to be processed is 180 degrees with respect to the rotary grindstone in order to further form the other inclined surface of the groove to be formed by the first cutting surface of the rotary grindstone. A grooving device having a reversing means for relatively rotating .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26434892A JP3403213B2 (en) | 1992-09-07 | 1992-09-07 | Grooving method and grooving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26434892A JP3403213B2 (en) | 1992-09-07 | 1992-09-07 | Grooving method and grooving device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0691510A JPH0691510A (en) | 1994-04-05 |
| JP3403213B2 true JP3403213B2 (en) | 2003-05-06 |
Family
ID=17401915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26434892A Expired - Lifetime JP3403213B2 (en) | 1992-09-07 | 1992-09-07 | Grooving method and grooving device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3403213B2 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4570885B2 (en) * | 2004-02-13 | 2010-10-27 | 株式会社フジクラ | Manufacturing method of V-groove substrate |
| KR101228961B1 (en) * | 2009-10-26 | 2013-02-01 | (주)원에스티 | Grinding method for a v-shape rail surface |
| CN104148992B (en) * | 2014-07-16 | 2016-08-24 | 北京航空航天大学 | A kind of grinding processing method for the processing of impeller hub tongue-and-groove |
| CN104493670B (en) * | 2014-12-22 | 2017-09-05 | 溧阳市超强链条制造有限公司 | A kind of method for grinding of chain head riveter roll groove profile |
| CN105834839B (en) * | 2016-04-06 | 2018-03-02 | 中国南方航空工业(集团)有限公司 | Method of the double angle tenon tooths of grinding to table part |
| JP7149178B2 (en) * | 2018-12-20 | 2022-10-06 | 株式会社アマダ | Grinding method |
| JP7263872B2 (en) * | 2019-03-25 | 2023-04-25 | 株式会社デンソー | Drill manufacturing method |
-
1992
- 1992-09-07 JP JP26434892A patent/JP3403213B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0691510A (en) | 1994-04-05 |
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