JPH0611760Y2 - Optical fiber connector polishing jig - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention enables the end faces of a single-fiber optical fiber connector and a multi-fiber optical fiber connector to be polished using the same polishing jig. The present invention relates to an optical fiber connector polishing jig.

"Prior Art" In recent years, a transmission system for transmitting information converted into an optical signal through an optical fiber has become widespread. In an optical transmission line using such an optical fiber, a merging portion of the optical transmission line,
Optical fiber interconnections will be formed at the branching part, extension part, or transmission line switching part, but at the connecting part, the axes of the optical fibers to be connected must be accurately aligned. , It is necessary to completely adhere the ends of both optical fibers.

In order to meet such requirements, the following means have been conventionally used as an optical fiber connecting means.

That is, in connection with a single-core optical fiber, the ends of a pair of single-core optical fibers to be connected are inserted into a cylindrical member called a ferrule of the single-core optical fiber connector 1 shown in FIG. Incidentally, by inserting these ferrules 2 into the sleeve (not shown) from both ends, the optical fibers exposed from the tip of the ferrule are brought into close contact with each other in a butted state.

Further, in the connection of the multi-core tape optical fiber, the ends of the pair of multi-core tape optical fibers to be connected are called a ferrule connector of the multi-core tape optical fiber connector 4 shown in FIG. The ferrule connector 5 is inserted into a body-shaped member, and the ferrule connector 5 is moved through a guide pin (not shown) inserted into the ferrule connector 5, and the respective tip surfaces of the ferrule connectors 5 are brought into contact with each other so that the ferrules are brought into contact with each other. The optical fibers exposed from the tip of the connector 5 are brought into close contact with each other in a butted state.

Then, in order to bring the optical fibers into close contact with each other in abutting state, the respective tip surfaces of the pair of single-fiber optical fiber connectors 1 and the tip surfaces of the pair of multi-fiber tape optical fiber connectors 4 are respectively rotated by a polishing machine. Polished by pressing it against the flat surface of the grindstone, making it flat so that the tip surfaces of the pair of single-fiber optical fiber connectors or the tip surfaces of the pair of multi-fiber tape optical fiber connectors can be accurately adhered to each other. .

"Problems to be solved by the invention" However, in order to attach such a single-fiber optical fiber connector 1 and a multi-fiber tape optical fiber connector 4 to a polishing machine, the single-core optical fiber is attached to the arm of the polishing machine. For the connection of the connector for the optical fiber, a jig dedicated to the connector for the single-fiber optical fiber must be separately attached for each connection of the connector for the multi-fiber optical fiber connector. Not only is it difficult and troublesome to attach and detach these jigs to and from the polishing machine, but there are two types of jigs, one for the single-fiber optical fiber connector and the other for the multi-fiber tape optical fiber connector. A jig must be prepared and stored, and there is a problem that handling of these becomes complicated.

The present invention has been made in view of the above circumstances, and the mounting of a single-fiber optical fiber connector to a polishing machine and the mounting of a multi-fiber optical fiber connector to a polishing machine can be accurately and quickly mounted by the same jig. It is an object of the present invention to provide an optical fiber connector polishing jig capable of simplifying the storage of the jig.

"Means for Solving Problems" The present invention has the following configuration in order to achieve the above object. That is, when mounted on a polishing machine, it has a concave portion which is composed of a planar bottom surface and a planar side surface orthogonal to the plane portion of the rotary grindstone of the polishing machine and into which a rectangular multi-fiber tape optical fiber connector is fitted. Further, a receiving member having a V groove formed on the bottom surface of the recess, the V groove being orthogonal to the flat surface portion of the rotary grindstone and holding a cylindrical single-core optical fiber connector, and a clamp surface parallel to the bottom surface. And a multi-core tape fitted between the V-groove and the clamp surface, or a single-core optical fiber connector formed between the V-groove and the clamp surface. The optical fiber connector comprises a clamp member for clamping the V groove or the bottom surface, and a pressing mechanism for pressing the clamp member toward the receiving member.

"Operation" Select and clamp a single-fiber optical fiber connector between the V groove of the recess of the receiving member and the clamp surface of the clamp member, and a multi-fiber optical fiber connector between the bottom surface of the recess and the clamp surface. Thus, the single-core optical fiber connector and the multi-core tape optical fiber connector can be accurately and promptly attached to the polishing machine by the same jig.

[Embodiment] An embodiment of the present invention will be described below with reference to FIGS. 1 to 4. Reference numeral 11 in these figures denotes a jig for attaching the single-core optical fiber connector 1 and the multi-core tape optical fiber connector 4 to the arm (the member to be polished) of the polishing machine. The jig 11 includes a receiving member 12 and the receiving member 1.
2 and a clamp member 14 attached by screws (pressing mechanism) 13, 13.

The receiving member 12 is a rectangular parallelepiped in which a rectangular concave portion 15 is formed at a predetermined position, and the bottom surface 16 of the concave portion 15 rotates horizontally when the jig 11 is attached to the polishing machine. , The plane portion of the rotary grindstone 10 shown by phantom lines in FIG. 4 (the upper surface of the rotary grindstone 10 in FIGS. 3 and 4) 1
It is formed on a plane orthogonal to 0a. Also, the bottom surface 16
A V groove 17 is formed in the central portion of the V groove 17 orthogonal to the flat surface portion 10a of the rotary grindstone 10.

On the other hand, the clamp member 14 is a rectangular parallelepiped provided with a rectangular convex portion 18, and the concave portion 18 is formed so as to be loosely fitted into the concave portion 15 when the clamp member 14 is attached to the receiving member 12. . Clamping surface 19 of convex portion 18
Is designed to be parallel to the bottom surface 16 when the convex portion 18 is fitted into the concave portion 15.

The receiving member 12 has screw holes 2 located on both sides of the recess 15.
0, 20 are formed in the clamp member 14, and the through holes 21, 21 are located on both sides of the convex portion 18 in the clamp member 14 and at positions facing the screw holes 20, 20 of the receiving member 12 when the convex portion 18 is fitted in the concave portion 15. Are formed. Recess 15 of receiving member 12
The convex portion 18 of the clamp member 14 is fitted into the screw hole 2
The screws 13 inserted into the through holes 21 and 21 are screwed into the 0 and 20, so that the clamp member 1 is attached to the receiving member 12.
4 is attached.

Next, the operation of the optical fiber connector polishing jig configured as described above will be described.

When the jig 11 is used, the bottom surface 16 of the concave portion 15 formed in the receiving member 12 on the arm (not shown) of the polishing machine,
The V groove 17 and the clamp surface 19 of the clamp member 14 are attached so as to be orthogonal to the flat surface portion 10a of the rotating grindstone 10 of the polishing machine that horizontally rotates.

Next, when the tip of the single-fiber optical fiber connector 1 is polished, the screws 13 and 13 are loosened, and as shown in FIG.
The tip side of the ferrule 2 of the single-fiber optical fiber connector 1 is inserted between the groove 17 and the clamp surface 19.

Next, the screws 13 and 13 are tightened. Then, the receiving member 12
The clamp member 14 approaches to the V groove 17, and the clamp surface 19 clamps the tip end side portion of the ferrule 2 of the single-fiber optical fiber connector 1 in the V groove 17.

When the tip of the multi-fiber tape optical fiber connector 4 is polished, the screws 13, 13 are loosened and the multi-fiber tape optical fiber is provided between the bottom surface 16 and the clamp surface 19 of the recess 15 as shown in FIG. The front end side of the ferrule connector 5 of the connector 4 is inserted.

Next, the screws 13 and 13 are tightened. Then, the receiving member 12
Then, the clamp member 14 approaches, and the tip end side of the ferrule connector 5 of the multi-fiber tape optical fiber connector 4 is clamped to the bottom surface 16 by the clamp surface 19.

Therefore, by using the polishing jig of this embodiment, when polishing the tip of the single-fiber optical fiber connector 1 or polishing the tip of the multi-core tape optical fiber connector, the polishing machine is dedicated to these connectors. It is not necessary to replace the jigs, and the single jig optical fiber connector 1 and the multi-fiber tape optical fiber connector 4 can be selected and replaced in the same jig 11 to quickly polish them. This can be done (the above is the first embodiment).

In the above embodiment, the V groove 17, the clamp surface 1
The single-fiber optical fiber connector 1 or the multi-fiber tape optical fiber connector 4 between 9 or the bottom surface 16 and the clamp surface 19 is clamped by screwing the clamp member 14 to the receiving member 12, but the present invention is not limited to this. For example, as shown in FIG. 5, the recess 15 and the screw hole 20 are provided in the surface 12a of the receiving member 12 that faces the clamp member 14.
The compression springs 31, 31 located between are fixedly attached,
The clamp member 14 is attached to the receiving member 12 by the compression springs 31, 31.
Alternatively, the single core optical fiber connector 1 or the multi-core tape optical fiber connector 4 may be clamped to the receiving member 12 by the clamp member 14 with a screw.

By using the compression springs 31 and 31 in this way, it is possible to reliably prevent loosening of the screws 13 and 13 during polishing of the single-fiber optical fiber connector 1 and the multi-fiber tape optical fiber connector (the second embodiment described above). Example).

Further, in the first embodiment, the convex portion 18 is integrally provided on the clamp member 14, but the present invention is not limited to this. For example, as shown in FIG. 6, the screw 13 inserted into the clamp base 41 is used. , 13 are loosely fitted with holes 43, 43 formed in a plate-shaped clamp member 42 having a convex portion 42a, and compression springs 44, 44 are provided between the clamp base 41 and the plate-shaped clamp member 42 with a space therebetween. The compression springs 44, 44 are attached to the plate-shaped clamp member 42, and the receiving member 12 is provided with the clamp base 41 and the plate-shaped clamp member 4.
By screwing 2 together, the clamp surface 42b of the plate-like clamp member 42 elastically presses and clamps the single-fiber optical fiber connector 1 or the multi-fiber optical fiber connector 4 on the receiving member 12. Good (above third embodiment).

[Advantage of the Invention] According to the present invention, a rectangular multi-core tape optical fiber having a flat bottom surface and a flat side surface that are orthogonal to the flat surface portion of the rotary grindstone of the polishing machine when mounted on the polishing machine Member having a concave portion into which the connector for optical fiber is fitted, and further having a V groove formed in the bottom surface of the concave portion for holding the cylindrical single-fiber optical fiber connector orthogonal to the plane portion of the rotary grindstone And a convex portion having a clamp surface parallel to the bottom surface and removably fitted into the concave portion, and the single-fiber optical fiber connector fitted between the V groove and the clamp surface or the concave portion, the clamp Since the multi-core tape optical fiber connector fitted between the surfaces is clamped to the V groove or the bottom, respectively, and a pressing mechanism for pressing the clamp member toward the receiving member, the single core When polishing the tip of an optical fiber connector, when polishing the tip of a multi-fiber tape optical fiber connector, it is not necessary to replace the jigs dedicated to these connectors with the polishing machine, By simply selecting and replacing the single-fiber optical fiber connector and the multi-fiber tape optical fiber connector, these can be rapidly polished by the polishing machine, which can improve the work efficiency and also the jig. The storage of the polishing jig can be simplified and the complexity of handling the polishing jig can be eliminated.

Further, since the connector is clamped in a state where the convex portion of the clamp member is fitted in the concave portion of the receiving member, vibration is transmitted to the receiving member and the clamp member via the connector when polishing the end face of the connector. Even if it does, the receiving member and the clamp member do not deviate from each other, and therefore the reliable clamped state of the connector can be maintained.

[Brief description of drawings]

1 to 4 show an embodiment of the present invention.
FIG. 1 is a partially omitted exploded perspective view, FIG. 2 is a partially omitted perspective view of a receiving member, FIG. 3 is a partially omitted perspective view showing a state in which a single-fiber optical fiber connector is attached, and FIG. FIG. 5 is a partially omitted perspective view showing a state in which a multi-fiber tape optical fiber connector is attached, FIG. 5 is a partially omitted perspective view of a receiving member showing another embodiment of the present invention, and FIG. FIG. 7 is a perspective view of a multi-fiber optical fiber connector, and FIG. 8 is a perspective view of a single-fiber optical fiber connector. 12 ... Receiving member, 13 ... Screw, 14, 42 ... Clamping member, 15 ... Recess, 16 ... Bottom surface, 17 ... V
Grooves, 18, 42a ... Projections, 19, 42b ... Clamping surfaces, 31, 44 ... Compression springs.

Claims (1)

[Scope of utility model registration request] 1. A rectangular multi-fiber tape optical fiber connector comprising a flat bottom surface (16) and a flat side surface that are orthogonal to the flat surface of a rotary grindstone of the grinding machine when mounted on the grinding machine (1). 4) a V-groove having a recess (15) into which the cylindrical single-core optical fiber connector (1) orthogonal to the flat surface of the rotary grindstone is held on the bottom surface of the recess. A receiving member (12) having (17) formed therein, and a convex portion (18) (42) which has a clamp surface (19) (42b) parallel to the bottom surface and which is removably fitted into the concave portion.
a) is formed, and the single core optical fiber connector fitted between the V groove and the clamp surface or the concave portion and the multi-core tape optical fiber connector fitted between the clamp surfaces are respectively formed into the V groove or the bottom surface. An optical fiber connector polishing jig comprising: clamp members (14) and (42) for clamping the clamp member and a pressing mechanism (13) for pressing the clamp member toward the receiving member.