JP2003053651A - Jig board - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a jig board capable of easily and surely fixing a bar-shaped member in a short time. SOLUTION: This jig board 10 is provided in an end face polishing device for polishing an end face of the bar-shaped member having a rectangular cross section and is arranged at a position facing a polishing disc. The jig board 10 is provided with a jig board body 20 provided with a first recessed part 21 abutting on two orthogonal surfaces of a side surface of the bar-shaped member 1, a pressing part 30 which is provided at a position facing the first recessed part 21 of the jig board body 20 and has a second recessed part 31 abutting on other two surfaces opposed to the two surfaces of the side surface of the bar-shaped member 1, and a holding part 40 which holds the pressing part 30 to be movable in the surface direction of the jig board body 20 and is movably provided in parallel to the surface of the jig board body 20 and in the direction orthogonally crossed with either one of the two surfaces of the first recessed part 21. The pressing part 30 is provided to be moved together with the holding part 40 in the same direction by moving the holding part 40 and to move a relative position in contact with the holding part 40 in the direction orthogonally crossed with the moving direction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a jig board for fixing a rod-shaped member provided in an end face polishing device for polishing the tip of the rod-shaped member such as a multi-fiber optical connector holding a plurality of optical communication fibers.

[0002]

2. Description of the Related Art A fiber for optical communication is used by bonding an optical fiber in the center hole of a ferrule which is a main member of a connector and then polishing the end face of the ferrule and the end face of the fiber at the same time to finish them into a mirror surface. If the polished surface of the ferrule and the optical fiber that have been polished is not a surface perpendicular to the center axis of the ferrule, or if the polished surface is scratched, the optical connector in which the ferrules are connected to each other will face each other with a matching position accuracy. Deteriorates and the loss increases. Therefore, the end surface of the ferrule including the optical fiber needs to be highly accurately polished and finished.

Further, in the conventional optical connector, one optical fiber is held, whereas a plurality of optical fibers can be held to perform high-speed transmission of a large amount of data, for example, MT type. , MPO type and other multi-fiber optical connectors are known.

FIG. 14 shows an MT type optical connector as an example of such a multi-fiber optical connector. Note that FIG.
4 is a perspective view of the multi-fiber optical connector.

As shown in the figure, the multi-fiber optical connector 1 has a quadrangular prism shape with a rectangular cross section, and has a plurality of optical fibers, for example, two optical fibers are fixed by an adhesive. It has a hole 2 and an optical fiber core wire holding hole 3 communicating with the optical fiber insertion hole 2 and holding the optical fiber core wire, and above the optical fiber core wire holding hole 3, that is, the multi-fiber optical connector 1 An adhesive injection hole 4 for introducing an adhesive is opened on the side surface of the.

Further, a guide pin for aligning with another multi-fiber optical connector when the multi-fiber optical connectors are oppositely connected to each other on one end face where the optical fiber insertion hole 2 of the multi-fiber optical connector 1 is opened. Is provided with a guide pin insertion hole 5.

At the other end of the multi-fiber optical connector 1 opposite to the side where the optical fiber insertion hole 2 is opened, a collar portion 6 for holding an optical fiber cord coated on the optical fiber core wire is provided.
Is provided.

According to the multi-fiber optical connector 1, a plurality of optical fibers can be connected to each other at a time, but the end face is polished in order to reduce the insertion loss due to the improvement of the facing position accuracy as the size is reduced. It is necessary to polish the precision to a higher degree than that of the conventional single-core optical connector.

Here, as a conventional end surface polishing apparatus, for example, there is one disclosed in Japanese Patent Application Laid-Open No. 3-26456. The end face polishing device disclosed in this publication has an eccentric disc that rotates on the center circle of a rotating disc, and has a planetary gear that transmits the rotation of a revolution motor to this eccentric disc. While rotating and revolving the polishing board, the end faces of a large number of optical connectors held by the jig board are pressed against the polishing member fixed to the polishing board for polishing.

A jig board provided in such an end face polishing apparatus for holding a rod-shaped member having a rectangular cross section, such as a multi-fiber optical connector, is disclosed in, for example, JP-A-6-138343. There is.

The jig board will be described in detail. 15 is a perspective view of a main part of the jig board, and FIG. 16 is a plan view and a cross-sectional view of the main part of the jig board.

As shown in the figure, the jig board 100 has a jig board body 102 having a recess 101 on the side surface to which the multi-fiber optical connector 1 is fitted, and a recess 101 of the jig board body 102.
Is provided at a position facing the
01 and a holding member 103 sandwiched therebetween.

As shown in FIG. 16A, the jig board body 1
02 is provided with a recess 101 having a width slightly larger than one width of the multi-fiber optical connector 1 with which the side surface of the multi-fiber optical connector 1 is fitted. This concave portion 101 is a multi-fiber optical connector 1
By being formed to be shallower than the other width, the multi-fiber optical connector 1 is fitted in a state of protruding from the side surface.

A holding member 103 is held by a fixing screw 104 at a position facing the recess 101 of the jig board body 102 so as to be movable in a direction orthogonal to the jig board body 102.

The holding member 103 abuts on the side surface of the multi-fiber optical connector 1 protruding from the recess 101 of the jig board main body 102 to sandwich the multi-fiber optical connector 1 with the recess 101.

Further, as shown in FIG. 16B, in the multi-fiber optical connector 1, the end surface of the flange portion 6 on the tip side is the jig board body 102.
The upper end of the multi-fiber optical connector 1 is restricted to move downward in the axial direction. Further, in the jig board main body 102, a regulation projection 105 that comes into contact with the upper end surface of the multi-fiber optical connector 1 and regulates the axial upward movement of the multi-fiber optical connector 1 is held by a regulation projection fixing screw 106. ing. That is,
The jig board body 102 and the restricting projection 105 sandwich the collar portion 6 of the multi-fiber optical connector 1 to restrict the axial movement of the multi-fiber optical connector 1.

[0017]

However, in such a conventional jig board, as shown in FIG. 16A, the recess 101 has a width slightly larger than one width of the multi-fiber optical connector 1. Since it is formed, a gap is formed between both side surfaces of the multi-fiber optical connector 1 and the recess 101. Therefore, even if the holding member 103 is pressed against the jig board main body 102 with a certain amount of pressure to sandwich the multi-fiber optical connector 1, the multi-fiber optical connector 1 will have a gap when the end face of the multi-fiber optical connector 1 is polished. Therefore, there is a problem in that high precision polishing cannot be performed.

Further, in such a jig board 100, the holding member 103 and the restriction projection 105 are alternately and gradually moved to fix the multi-fiber optical connector 1, so that the holding member 10 is held.
3 and the fixing screw 104 for fixing the restriction protrusion 105 and the fixing screw 106 for the restriction protrusion must be operated two times.
There is a problem that the operation is complicated and the work takes time.

In view of such circumstances, it is an object of the present invention to provide a jig board which can easily and reliably fix a rod-shaped member in a short time.

[0020]

According to a first aspect of the present invention for solving the above-mentioned problems, an end face polishing apparatus for polishing the end face of a rod-shaped member having a rectangular cross section is arranged at a position facing a polishing plate. In the jig board, the jig board body has a mounting portion to the polishing device at a substantially central portion, and a side surface provided with a first concave portion that comes into contact with two orthogonal side surfaces of the rod-shaped member, A pressing portion having a second concave portion provided at a position facing the first concave portion of the jig board main body, and having a second concave portion in contact with another two surfaces of the side surface of the rod-shaped member facing each other;
The pressing portion is movably held in the surface direction of the jig board body, and is provided so as to be movable in a direction parallel to the surface of the jig board body and orthogonal to either of the two surfaces of the first recess. The holding section is moved in the same direction as the holding section by the movement of the holding section, and the relative position in contact with the holding section is moved in a direction orthogonal to the moving direction. Jig board characterized by.

According to a second aspect of the present invention, in the first aspect, the pressing portion is provided with an inclined surface inclined at a predetermined angle with respect to the moving direction of the holding portion, while the holding portion is provided. A slidable contact surface that is inclined at an angle equal to that of the slanted surface is provided, and the holding portion is moved by the relative movement of the slidable contact surface and the slanted surface of the holding portion by moving the holding portion. It is in a jig board characterized by that.

According to a third aspect of the present invention, in the first aspect, the pressing portion is provided with an inclined surface inclined at a predetermined angle with respect to the moving direction of the holding portion, while the jig board main body is provided with the inclined surface. Is provided with a slidable contact surface inclined at an angle equal to that of the slanted surface, and by moving the holding part, the slidable contact surface and the slanted surface of the pressing part move relative to each other so that the pressing part is moved. It is in a jig board characterized by that.

According to a fourth aspect of the present invention, in the third aspect, the pressing portion is made of an elastic body that is elastically deformable, and the holding portion is provided with the pressing portion opposite to the one side surface of the rod-shaped member. In the jig board, a pressing means for elastically deforming toward the surface is provided.

A fifth aspect of the present invention is the jig according to the fourth aspect, characterized in that the pressing means is a screw member that is screwed into the holding portion and has a tip protruding toward the holding portion. It is on the board.

According to a sixth aspect of the present invention, in any one of the first to fifth aspects, the pressing portion has an abutting portion that abuts an upper end surface of the rod-shaped member, and the holding portion is moved. By doing so, the pressing portion is also moved in the thickness direction of the jig board main body, and the movement of the rod-shaped member to the upper side in the axial direction is restricted.

In a seventh aspect of the present invention, in any one of the first to sixth aspects, the holding member is provided with two holding portions, and the two holding portions provide two rod-shaped members. The jig board is characterized by holding.

In an eighth aspect of the present invention according to any one of the first to seventh aspects, a relief groove is provided in a corner portion of the first concave portion and the second concave portion in the thickness direction. It is in a jig board that is characterized by being.

In a ninth aspect of the present invention according to any one of the first to eighth aspects, the inner surface of the first recess and the second recess has a thickness at a position facing a burr of the rod-shaped member. The jig board is characterized in that a burr escape groove is provided in the direction.

A tenth aspect of the present invention is the jig board according to any one of the first to ninth aspects, wherein the rod-shaped member is a multi-core ferrule or a multi-core optical connector.

In the present invention, by moving the holding portion, it is possible to move the holding portion together with the holding portion in the same direction, and to move the relative position with respect to the holding portion in a direction orthogonal to this moving direction. By the movement of the pressing portion, it is possible to reliably hold the rod-shaped member having a rectangular cross section without a gap. Therefore, the end surface of the rod-shaped member can be highly accurately polished without tilting the rod-shaped member during polishing.

[0031]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings.

(Embodiment 1) FIG. 1 is a perspective view of a main part of a jig board according to a first embodiment of the present invention, and FIG. 2 is a top view and a side view of the main part of the jig board. , FIG. 3 shows A- of FIG.
It is an A'cross section figure.

The rod-shaped member held by the jig board 10 of the present embodiment is not particularly limited as long as it is a rod-shaped member having a rectangular cross section, but in the present embodiment, the multi-core optical fiber shown in FIG. Since the connector 1 is used, duplicated description will be omitted.

As shown in FIGS. 1 to 3, the jig board 10 includes a jig board body 20, a holding portion 30 movably provided in the surface direction of the jig board body 20, and a holding portion 30. And a holding unit 40 that is movably provided in a direction and is movably provided in a direction orthogonal to a side surface of the jig board body 20.

Although not shown, the jig board main body 20 is formed of, for example, a polygonal plate-shaped member such as a hexagonal shape, and the side surface of each side is orthogonal to the side surface of the multi-fiber optical connector 1. A first recess 21 is provided that abuts the two surfaces.

The first concave portion 21 is formed by cutting the edge portion of the step portion 22 provided on the side surface of the jig board main body 20 in the thickness direction so as to be orthogonal to the multi-fiber optical connector 1. It comes in contact with two surfaces.

Further, the holding portion 40 provided so as to face the first concave portion 21 of the jig board body 20 is provided with the jig board body 2
It is provided so as to be movable in a direction parallel to the 0 plane and orthogonal to either of the two surfaces of the first recess 21.

In this embodiment, the fixing screw 42 is inserted into each of the two through holes 41 provided in the holding portion 40,
The holding portion 40 is movably fixed in a direction orthogonal to the side surface of the jig board body 20 by screwing the tip of the fixing screw 42 onto the side surface of the jig board body 20.

Further, the holding portion 40 is provided with a second concave portion 43 at a position facing the first concave portion 21 of the jig board main body 20, and the holding portion 30 is provided in the second concave portion 43. It is provided.

On the inner surface of the second recess 43 of the holding portion 40, there is provided a sliding contact surface 44 inclined by a predetermined angle with respect to the moving direction of the holding portion 40 with respect to the jig board main body 20, which will be described in detail later. However, the pressing portion 30 is in sliding contact with the sliding contact surface 44.

The pressing portion 3 provided in the second recess 43
No. 0 has a position where it faces the first recess 21 of the jig board main body 20 and is in contact with the other two faces of the side surface of the multi-fiber optical connector 1 which face the first recess 21. 3 recesses 31
Is provided.

Further, the pressing portion 30 is provided with an insertion hole 32 through which one of the fixing screws 42 for fixing the holding portion 40 is inserted. By providing the insertion hole 32 with an inner diameter larger than that of the fixing screw 42, the holding portion 30 is held so as to be movable in the axial direction and the radial direction of the insertion hole 32.

Further, the pressing portion 30 is provided at the same angle as the sliding contact surface 44 in the second recess 43 of the holding portion 40, and comes into sliding contact with the sliding contact surface 44 as the holding portion 40 moves. An inclined surface 33 is provided.

When the holding portion 40 is moved to the jig board main body 20 side by tightening the fixing screw 42, the holding portion 40 and the holding portion 30 are slidably in contact with the holding portion 40 and the inclined surface of the holding portion 30. 33, the pressing portion 30 moves in the same direction as the moving direction of the holding portion 40, and the relative position with respect to the holding portion 40 moves in a direction orthogonal to the moving direction of the holding portion 40, so that the multi-fiber optical connector 1 side of the first concave portion 2
It is sandwiched between 1 and the third recess 31. Thereby, the multi-fiber optical connector 1 can be securely fixed to the jig board 10 without a gap.

When fixing the multi-fiber optical connector 1 to the jig board 10, the end face of the flange portion 6 of the multi-fiber optical connector 1 is brought into contact with the upper surface of the jig board body 20. It is preferable to fix it while pressing it downward in the axial direction with a finger. As a result, when fixing the multi-fiber optical connector 1, the multi-fiber optical connector 1 is not obliquely fixed, and the multi-fiber optical connector 1 can be fixed only by tightening the fixing screw 42, so that the fixing time can be shortened. You can

(Embodiment 2) FIG. 4 is a perspective view of a main part of a jig board according to the second embodiment, and FIG. 5 is a top view and a side view of the main part of the jig board. FIG. 6 is a sectional view taken along line BB ′ of FIG. The members described in the above-described first embodiment are denoted by the same reference numerals, and overlapping description will be omitted.

As shown, the jig board 10 of the second embodiment.
A is the jig board main body 20A, the pressing portion 30A, and the holding portion 4.
And 0A.

The jig board body 20A has a first recess 21A.
The stepped portion 22A provided with is provided with a sliding contact surface 44A inclined at a predetermined angle with respect to the moving direction of the holding portion.

In the holding portion 40A, a fixing screw 42 is inserted into each of the two through holes 41, and the tip of the fixing screw 42 is screwed onto the side surface of the jig board body 20 to hold the holding portion 40A.
A is movably fixed in a direction orthogonal to the side surface of the jig board body 20A. Further, a pressing screw 45 is screwed into the holding portion 40A substantially at the center thereof so that the tip of the holding portion 40A projects toward the surface of the holding portion 30A.

The holding portion 30A is made of a plate-like elastic body such as resin or leaf spring, and is provided with two insertion holes 32A through which the fixing screws 42 are inserted. The insertion hole 32A has an inner diameter slightly larger than that of the fixing screw 42, and the holding portion 30A includes the jig board body 20A and the holding portion 40.
It is held between A and A so as to be movable in the axial direction of the fixing screw 42.

In addition, the jig board main body 2 is attached to the pressing portion 30A.
0A of the jig board body 20 on the surface facing the first recess 21A.
A protruding portion 34 that projects into the stepped portion 22A of A is provided, and an inclined surface 33A that is inclined at an angle equivalent to the sliding contact surface 44A of the stepped portion 22A is provided. The surface of the protrusion 34 opposite to the inclined surface 33A is a third concave portion which is in contact with the other two surfaces of the side surface of the multi-fiber optical connector 1 which are in contact with the first concave portion 21A. It is 31A.

Here, the holding portion 40A and the holding portion 30A are engaged with a fixing screw 42 to hold the holding portion 40A.
When A is moved to the jig board body 20A side, the pressing portion 30A
Moves in the same direction as the moving direction of the holder 40A. At this time, the sliding contact surface 44A of the jig board body 20A and the pressing portion 30A
Slidable contact with the inclined surface 33A of the
The first concave portion 21A and the third concave portion 31A sandwich side surfaces facing each other in a direction orthogonal to the axial direction of the fixing screw 42 of the multi-fiber optical connector 1. Then, the pressing screw 45 provided on the holding portion 40A is tightened to project the tip thereof to the holding portion 40A side, whereby the holding portion 30A formed of an elastic body is elastically deformed toward the first recess 21A side, and thus the holding portion 30A is elastically deformed. The side surfaces of the fixing screw 42 of the optical fiber connector 1 that face each other in the axial direction are clamped. As a result, the multi-fiber optical connector 1 can be reliably held by the first recess 21A and the third recess 31A without a gap.

In such a jig board 10A, if the tightening amount of the pressing screw 45 is adjusted according to the first one of the multi-fiber optical connector 1, the multi-fiber optical connector 1 held thereafter is similar. If so, it is not necessary to adjust the tightening amount each time, and the multi-fiber optical connector 1 can be fixed only by the fixing screw 42. Therefore, the first embodiment described above
The same effect as can be obtained.

(Embodiment 3) FIG. 7 is a perspective view of a main part of a jig board according to the third embodiment, and FIG. 8 is a top view and a side view of the main part of the jig board. FIG. 9 is a sectional view taken along the line CC ′ of FIG. 8. The same members as those in the first embodiment described above are designated by the same reference numerals, and overlapping description will be omitted.

As shown, the jig board 10 of the third embodiment.
B is a jig board main body 20B, two pressing portions 30B,
And a holding portion 40B.

The step portion 22B of the jig board main body 20B has a concave shape, and the edge portions on both sides thereof are provided with a first concave portion 21B which comes into contact with two orthogonal side surfaces of the multi-fiber optical connector 1, respectively. Has been.

The holding portion 40B also has a second recess 43.
Sliding contact surfaces 44B are provided on the inner side surfaces on both sides of B, respectively.

The holding portion 40B is fixed by a single fixing screw 42 inserted in the through hole 41 so that the distance from the side surface of the jig board body 20B can be adjusted. Specifically, the fixing screw 42 is inserted through a through hole 41 provided through the holding portion 40B, and the tip thereof is the jig board body 20.
The holding portion 40B is fixed by a ring 46 fixed to the fixing screw 42 between the holding portion 40B and the jig board body 20B so that the distance from the side surface of the jig board body 20B can be adjusted. ing.

Further, the fixing screw 4 is attached to the jig board main body 20B.
The rod-shaped floating pin 47 protruding in the same direction as the axial direction of 2
Is provided, and the floating pin 47 is inserted into the floating pin insertion hole 48 provided in the holding portion 40B, whereby the holding portion 40B is restricted from moving in the rotational direction of the fixing screw 42. In addition, the two floating pins 47 fixed to the jig board body 20B are respectively provided with the insertion holes 32 of the holding portion 30B.
B is inserted, and the pressing portion 30B is provided so as to be movable in the axial direction and the radial direction of the floating pin 47.

In such a jig board 10B, the two holding portions 30B can fix the two multi-fiber optical connectors 1 at the same time. In addition, each pressing portion 30B
Since the movement of is similar to that of the above-described first embodiment, duplicate description will be omitted. As a result, the same effect as that of the first embodiment described above can be obtained.

Since the multi-fiber optical connector 1 is formed by molding, the side edges may not be formed at right angles, or
Since burr may be formed on the side surface, the first concave portion 21B and the pressing portion 30B of the jig board body 20B of the present embodiment.
In the third concave portion 31B, a relief groove 50 is provided in the thickness direction on the side surface facing the corner and the burr. This escape groove 5
By providing 0, the multi-fiber optical connector 1 can be reliably sandwiched between the inner surfaces of the first and third recesses 21B and 31B without a gap, and the multi-fiber optical connector 1 is inclined and polishing accuracy is deteriorated. It can be surely prevented. In addition, such an escape groove 50 is not limited to the present embodiment, but the first embodiment.
It is needless to say that the effect can be obtained by providing them in Nos. 1 and 2.

(Embodiment 4) In the jig boards 10 to 10B of Embodiments 1 to 3 described above, only the lateral direction of the multi-fiber optical connector 1 is held, but in the fourth embodiment, the multi-fiber optical connector is held. In this example, the axial direction of 1 is also held.

The fourth embodiment will be described as a modification of the third embodiment, but the present invention is not limited to this and can be applied to the first and second embodiments.

FIG. 10 is a perspective view of a main part of the jig board according to the fourth embodiment, FIG. 11 is a top view and a side view of the main part of the jig board, and FIG. It is DD 'sectional drawing and EE' sectional drawing. The same members as those in the first embodiment described above are designated by the same reference numerals, and overlapping description will be omitted.

As shown, the jig board 10 of the fourth embodiment.
C is a jig board main body 20C, two pressing portions 30C,
And a holding portion 40C.

The jig board main body 20C is provided with a pair of slide pins 49 provided in the same axial direction as the fixing screw 42, and the respective slide pins 49 are inserted into the holding portion 30C. A guide hole 35 is provided.

The pressing portion 30C has a contact portion 3 which projects toward the end face of the multi-fiber optical connector 1 and contacts the end face.
6 is provided.

Further, the inclined surface 33C provided on the pressing portion 30C and the sliding contact surface 44C provided on the holding portion 40C.
Are inclined in the thickness direction by a predetermined amount, and the holding portion 30C moves in the surface direction of both side surfaces of the first recess 21C as the holding portion 40C moves, and also in the thickness direction. Is also moving.

Therefore, the guide hole 35 provided in the holding portion 30C is formed as an elongated hole in the moving direction of the holding portion 30C so as not to restrict the movement of the holding portion 30C.

In the jig board 10C having such a structure, when the fixing screw 42 is tightened, the holding portion 40C moves and the sliding contact surface 44C of the holding portion 40C and the inclined surface 33C of the holding portion 30C.
And the pressing portion 30C sandwiches the multi-fiber optical connector 1 in the surface direction of the jig board body 20C, and the end face of the flange portion 6 of the multi-fiber optical connector 1 on the top surface of the jig board body 20C. It abuts and also clamps in the axial direction.

By limiting the movement in the axial direction in this way, the movement in the axial direction of the multi-fiber optical connector 1 due to the pressing force during polishing can be regulated, so that highly accurate polishing can be realized.

(Other Embodiments) The first to fourth embodiments of the present invention have been described above, but the basic construction of the jig board is not limited to this.

In the above-described first to fourth embodiments, the jig board main body has a hexagonal flat plate shape, and the pressing portions 30 to 30C and the holding portion 40 are provided on the respective side surfaces of the jig board main body 20 to 20C.
Although 40C to 40C are provided, the outer shape of the jig board main body and the positions and numbers of the holding portions and the holding portions are not particularly limited.

Further, the jig board 1 according to the first to fourth embodiments described above.
An end face polishing apparatus that is provided with 0 to 10 C and polishes the end face of the multi-fiber optical connector will be described in detail.

FIG. 13 is a partial sectional view and an enlarged sectional view of an essential part of the end face polishing apparatus according to the first embodiment of the present invention.

As shown in FIG. 13, the central portion of the first rotation transmission plate 52 is fixed to the rotation shaft of the rotation motor 51, and the first rotation transmission plate 52 is concentric with the rotation center as a fulcrum. A plurality of first connecting pins 53 are fixed. Then, each of the first connecting pins 53 corresponds to each of the corresponding rotation transmitting plates 5
4 is rotatably connected to the eccentric part 4 and each of the rotation transmission plates 5
The second connecting pin 55 is fixed to the eccentric portion of the No. 4 connector. Each second connection pin 55 is rotatably connected to the second rotation transmission board 56.

On the other hand, a central portion of a drive gear 58 is fixedly connected to the rotation shaft of the revolution motor 57, and a driven gear 59 is engaged with the drive gear 58. The driven gear 59 is fixed to the outer periphery of the lower part of the revolution transmission shaft 60.
The bearing cylinder portion 62 of the apparatus body 61 is fitted to the outer periphery of the upper part of the. Then, a rotation shaft 63 for rotation is rotatably fitted into the revolution transmission shaft 60 at a position eccentric from the center of rotation by a predetermined amount, and a lower end portion of the rotation shaft 63 for rotation has a second rotation transmission plate 5 at its lower end.
It is fixed at the center of 6.

The upper end of the rotation shaft 63 for rotation is connected to the polishing plate 65 via the connecting member 64.
A polishing member 65a is attached to the upper surface of the polishing board 65.

On the other hand, the jig plate 10 is supported on the apparatus main body 61 by the support mechanism 66.

The support mechanism 66 has a pressing shaft 67 having a conical shape at its tip end, which is urged downward by a predetermined pressing force on a supporting portion 61a fixed to the apparatus main body 61, and is parallel to the pressing shaft 67. It is composed of a rotation stop pin 68 provided.

The tip 67a of the pressing shaft 67 is the jig board 1
0 is fitted into the taper hole 16 of the boss portion 15 and biases the jig board 10 toward the polishing board 65, whereby the jig board 1
The multi-fiber optical connector 1 held at 0 is pressed against the polishing member 65a. Further, the engaging groove 17 provided in the boss portion 15 and the rotation stopping pin 68 are engaged with each other, whereby the jig board 1
The rotation of 0 is regulated.

Here, the operation of the end surface polishing apparatus will be described.

As shown in FIG. 13, first, for revolution movement, the revolution motor 57 is driven to rotate the revolution transmission shaft 60 via the gears 58 and 59, and the polishing plate 65 is revolved by a predetermined eccentric amount. Exercise. In this case, the revolution transmission shaft 60 includes the rotation shaft 63 for rotation, but since the plurality of rotation transmission discs 54 are arranged between the rotation transmission disc 54 and the first rotation transmission disc 52, the rotation transmission disc 54 is the revolution transmission shaft. They rotate around the first connecting pin 53 in the same phase as the rotation of 60. Therefore,
Even if the first rotation transmission board 52 is stopped or is rotating, the rotation of the revolution transmission shaft 60 is not restricted.

On the other hand, with respect to the rotation motion, the first rotation transmission board 52 is rotated by driving the rotation motor 51, but the first connecting pin 53 is on the concentric circle of the first rotation transmission board 52. The rotation shaft 63 for rotation is eccentric by a predetermined amount, but is connected via the rotation transmission plate 54, so that the same rotation speed as that of the first rotation transmission plate 52 is transmitted to the rotation shaft 63 for rotation. To be done.

In this way, the polishing disk 65 revolves while rotating by the rotational movements of the revolution transmission shaft 60 and the rotation shaft 63 for rotation.

On the other hand, with respect to the polishing member 65a of the polishing plate 65, the jig plate 10 is restricted from moving in the rotation direction by the rotation stop pin 68 and is urged by the pressing shaft 67 toward the polishing plate 65. Then, the end face of the multi-fiber optical connector 1 is pressed against the polishing member 65a. As a result, the tip of the multi-fiber optical connector 1 is highly accurately polished.

[0087]

As described above, according to the present invention,
By moving the holding portion, the holding portion can be moved together with the holding portion in the same direction, and the relative position to the holding portion can be moved in a direction orthogonal to this moving direction. By this movement, a rod-shaped member having a rectangular cross section. Can be securely held without a gap. Therefore, the end surface of the rod-shaped member can be highly accurately polished without tilting the rod-shaped member during polishing.

[Brief description of drawings]

FIG. 1 is a perspective view of a main part of a jig board according to a first embodiment of the present invention.

FIG. 2 is a top view and a side view of a main part of a jig board according to the first embodiment of the present invention.

FIG. 3 is a cross-sectional view of the jig board according to the first embodiment of the present invention, which is a cross-sectional view taken along the line AA ′ of FIG.

FIG. 4 is a perspective view of a main part of a jig board according to a second embodiment of the present invention.

5A and 5B are a top view and a side view of a main part of a jig board according to a second embodiment of the present invention.

FIG. 6 is a sectional view of a jig board according to a second embodiment of the present invention, which is a sectional view taken along the line BB ′ of FIG.

FIG. 7 is a perspective view of a main part of a jig board according to a third embodiment of the present invention.

8A and 8B are a top view and a side view of a main part of a jig board according to a third embodiment of the present invention.

9 is a sectional view of a jig board according to a third embodiment of the present invention, which is a sectional view taken along the line CC ′ of FIG.

FIG. 10 is a perspective view of a main part of a jig board according to a fourth embodiment of the present invention.

FIG. 11 is a top view and a side view of a main part of a jig board according to a fourth embodiment of the present invention.

FIG. 12 is a cross-sectional view of a jig board according to a fourth embodiment of the present invention, which is a cross-sectional view taken along the line DD ′ and the line EE ′ of FIG. 11.

FIG. 13 is a partial cross-sectional view and an enlarged cross-sectional view of a main part of an end surface polishing apparatus according to another embodiment of the present invention.

FIG. 14 is a perspective view of a conventional multi-fiber optical connector.

FIG. 15 is a perspective view of a main part of a jig board according to a conventional technique.

16A and 16B are a top view and a sectional view of a jig board according to a conventional technique.

[Explanation of symbols]

10, 10A, 10B, 10C jig board 20, 20A, 20B, 20C Jig board body 21, 21A, 21B, 21C First recess 22, 22A, 22B Stepped portion 30, 30A, 30B, 30C Holding part 31, 31A, 31B Third recess 33, 33A, 33C inclined surface 40, 40A, 40B, 40C holding part 41 through hole 42 fixing screw 44, 44A, 44B, 44C Sliding contact surface 45 push screw 46 ring 47 Free Pin 48 Floating pin insertion hole 49 slide pin 50 escape groove

Claims (10)

[Claims] 1. A jig plate provided in an end face polishing device for polishing an end face of a rod-shaped member having a rectangular cross section and arranged at a position facing a polishing plate, and a mounting portion to the polishing device at a substantially central portion. And a jig board body provided on its side surface with a first concave portion that comes into contact with two orthogonal side surfaces of the rod-shaped member, and a jig board body provided at a position facing the first concave portion. And a holding portion having a second concave portion that comes into contact with the other two surfaces of the side surface of the rod-shaped member that face each other, and the holding portion is movably held in the surface direction of the jig board main body. A holding part provided so as to be movable in a direction parallel to the surface of the jig board main body and orthogonal to either of the two surfaces of the first recess, wherein the pressing part moves the holding part. Is moved in the same direction together with the holding part by the relative contact with the holding part. Jig plates, characterized in that location is moved in a direction orthogonal to the moving direction. 2. The jig board according to claim 1, wherein the holding portion is provided with an inclined surface inclined at a predetermined angle with respect to the moving direction of the holding portion, and the holding portion is provided with the inclined surface. A sliding contact surface inclined at an equal angle is provided, and the holding portion is moved by the relative movement of the sliding contact surface and the inclined surface of the holding portion by moving the holding portion. And the jig board. 3. The jig board according to claim 1, wherein the pressing portion is provided with an inclined surface inclined at a predetermined angle with respect to the moving direction of the holding portion, while the jig board body is provided with the inclined surface. Is provided with a slidable contact surface inclined at an angle equivalent to, and the relative movement of the slidable contact surface and the inclined surface of the pressing portion by moving the holding portion, the pressing portion is moved. Characteristic jig board. 4. The jig board according to claim 3, wherein the holding portion is made of an elastic body that is elastically deformable, and the holding portion is provided with the holding portion on one of the opposite sides of the side surface of the rod-shaped member. A jig board characterized in that a pressing means for elastically deforming toward is provided. 5. The jig board according to claim 4, wherein the pressing means is a screw member that is screwed into the holding portion and has a tip protruding toward the holding portion. 6. The jig board according to claim 1, wherein the pressing portion has an abutting portion that abuts an upper end surface of the rod-shaped member, and moves the holding portion. As a result, the pressing portion is also moved in the thickness direction of the jig board main body,
A jig board in which movement of the rod-shaped member in the axially upper direction is restricted. 7. The jig board according to claim 1, wherein the holding member is provided with two holding portions, and the two holding portions form two rod-shaped members. Jig board characterized by holding. 8. The jig board according to claim 1, wherein a relief groove is provided in a corner portion of the first recess and the second recess over a thickness direction. Jig board characterized by being. 9. The jig board according to claim 1, wherein an inner surface of the first recess and the second recess is located at a position facing a burr of the rod-shaped member in a thickness direction. A jig board characterized in that a relief groove for burr is provided over the entire length. 10. The jig board according to claim 1, wherein the rod-shaped member is a multi-fiber ferrule or a multi-fiber optical connector.