JP3055175U - Optical fiber end polishing machine - Google Patents

Abstract

[PROBLEMS] To simultaneously polish the end faces of a large number of optical fibers, automatically perform rough finishing and finish polishing, and evenly use a wide area of a polishing machine. Thereby, the use efficiency of the polishing machine is improved. Kind Code: A1 A two-axis polishing machine is provided in which a rough-finishing polishing machine and a finishing polishing machine driven in rotation are arranged side by side on the same plane, and a large number of optical fibers are arranged side by side. The clamp means 22 to which the mounting jig 21 for fixing the optical fiber is detachably fixed is moved to a position in front of the one surface of the two-axis polishing machine 10 so that the end faces of a large number of optical fibers are brought into contact with one surface by a predetermined amount. In this state, the clamp means 22 is reciprocated horizontally and circularly along one of the boards, thereby causing the end faces of a large number of optical fibers of the mounting jig 21 to swing with respect to the rotating one of the boards. Then, after this polishing, the end face polishing in two steps of moving the clamping means 22 to a position in front of the other disc surface of the biaxial polishing disc 10 is performed.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to an optical fiber end face polishing machine for polishing an end face of an optical fiber.

[0002]

[Prior art]

 In the butt connection of optical fibers, it is necessary to minimize the connection loss of transmitted light as much as possible. For this reason, the end face of the connector (ferrule) provided at the end of the optical fiber is polished with high precision.

[0003] To perform such high-accuracy end face polishing, finish polishing is performed using a fine-grinding finisher, but in order to improve work efficiency, a pre-process is required. Rough polishing is required.

[0004]

[Problems to be solved by the invention]

 However, since the conventional end face polishing machine has a single spindle that rotates the polishing machine, the rough finishing polishing and the finish polishing using such a polishing machine require a rough finishing polishing machine. After performing the polishing work, it is necessary to remove this polishing board and replace it with a finishing polishing board. This replacement requires much time and requires polishing a small number of optical fibers on one polishing board. However, there was a drawback that work efficiency was very poor.

Further, in the conventional end face polishing machine, since the mounting position of the optical fiber with respect to the polishing disc is fixed, the polishing disc is quickly worn, and the use efficiency of the polishing disc is extremely low. .

The present invention has been made in order to solve the above-mentioned problems, and simultaneously polishes the end faces of a large number of optical fibers and automatically performs two processes of rough finishing and finish polishing. It is another object of the present invention to provide an optical fiber end face polishing machine capable of improving the use efficiency of the polishing machine by using the polishing machine uniformly over a wide area.

[0007]

[Means for Solving the Problems]

 In order to achieve the above object, the optical fiber end face polishing machine according to the present invention has a rough finish polishing machine fixed to two rotationally driven main spindles and a finish polishing machine arranged in the same plane. A jig for fixing the ends of a large number of optical fibers in a side-by-side state, a clamp means for detachably fixing the jig, and the mounting means fixed to the clamp means. A moving mechanism for moving a jig to a front position of each board surface of the two-axis polishing machine; and a plurality of mounting jigs fixed to the clamp means by bringing the clamp means closer to the one board face. A feed mechanism for bringing the end face of the optical fiber into contact with the one board surface by a predetermined amount, a reciprocating mechanism for horizontally reciprocating the clamp means approaching the one board face along the one board face; An arc movement mechanism for reciprocatingly moving the clamp means along the one board surface, and the mounting jig fixed to the clamp means by simultaneously operating the reciprocation mechanism and the arc movement mechanism. Polishing is performed by swinging the end faces of a large number of optical fibers of the fixture with respect to the rotating one of the disk surfaces, and after the polishing by the one of the two-axis polishing disks, the clamping means is used for the biaxial polishing. The end faces of the optical fibers are polished in two steps by moving them to a position in front of the other board surface of the board.

[0008] Further, two micrometers are fixed in a vertical direction in parallel to an upper base constituting the feed mechanism, and a stopper is fixed to the middle base constituting the reciprocating mechanism so as to be movable up and down. The selection was made according to which one of the rough polishing machine and the finishing machine of the biaxial polishing machine was used to polish the end faces of a large number of optical fibers of the mounting jig fixed to the clamp means. By detecting the stop timing of the feed mechanism by contacting the tip of the one micrometer with the stopper in the elevating or descending state, rough finishing polishing of the two-axis polishing machine is performed according to the set amount of the micrometer. The polishing amount of the end face of the optical fiber for each of the disc and the finishing polishing disc may be adjusted.

[0009]

[Embodiment of the invention]

 Hereinafter, embodiments of the present invention will be described with reference to the drawings.

As shown in FIG. 1, in the optical fiber end face polishing machine of the present embodiment, a horizontal bed 2 is provided on the upper surface of a work table 1, and a housing in which a motor and the like are stored inside the bed 2 behind the bed 2. The housing 4 has a configuration in which a rough finishing polisher 6 and a finishing polisher 7 fixed to the two spindles 5 are exposed from the front surface of the housing 4 toward the bed 2. The work table 1 is made movable by fixedly mounting casters 3, 3... At four positions on the lower surface.

The configuration inside the housing 4 shown in FIG. 9 shows the driving means of the roughing polishing machine 6 on one side. The drive means for the panel 7 is provided with a similar configuration.

In FIG. 9, a bearing stand 9 is provided upright behind the bed 2, and a main shaft 5 is rotatably provided via a bearing 11 a or the like in a sleeve 11 provided laterally above the bearing stand 9. At the front end of the main shaft 5, a roughing polishing machine 6 is fixed vertically to the bed 2.

A motor 12 is fixedly mounted on the bed 2 behind the bearing base 9, and a pulley 14 fixedly mounted on a rotating shaft 13 of the motor 12 and a pulley fixedly mounted on a rear end of the main shaft 5. 15 are connected via a belt 16 so that the rotation of the motor 12 is transmitted to the main shaft 5 to rotate the rough finishing polishing machine 6.

By providing such driving means on the left and right along the back of the bed 2 at an interval, two main shafts 5 and 5 are arranged in parallel, and each main shaft 5 and 5 is provided with a polishing machine for rough finishing. The two-axis polishing machine 10 is formed by joining the polishing machine 6 and the finishing polishing machine 7 and juxtaposing them in the same plane perpendicular to the bed 2.

Further, as shown in FIG. 7, the optical fiber end face polishing machine of this embodiment comprises a clamp means 22 for detachably fixing a mounting jig 21 of a large number of optical fibers 20, 20,. A moving mechanism for moving the mounting jig 21 fixed to the polishing machine 22 to a position in front of the polishing machine 6 (or 7) of the two-axis polishing machine 10, and moving the clamping means 22 closer to the polishing machine 6 (or 7). .. Of the mounting jig 21 comes into contact with the surface of one of the polishing disks 6 (or 7) and the one of the polishing disks 6 (or 7). Reciprocating mechanism for reciprocating the clamp means 22 in the horizontal direction along the surface of one of the polishing disks 6 (or 7), and reciprocating circular arcs of the clamp means 22 along the surface of the one of the polishing disks 6 (or 7). Arc movement to move And a mechanism.

Here, the above moving mechanism will be described. As shown in FIG. 1, on the upper surface of the bed 2 of the work table 1, two lower guide rails 31 provided along the board surface of the biaxial polishing machine 10 are spaced apart in front and rear. Fixed. Are fixed on all four sides on the lower surface of the lower base 32, and the front and rear guides 33, 33 are slidably inserted into the lower guide rails 31, 31 on the bed 2. By being attached, the lower base 32 can move in parallel along the board surface of the biaxial polishing machine 10 along the lower guide rails 31, 31.

As shown in FIG. 9, an air slider 34 is fixed behind the lower guide rail 31 in parallel with the lower guide rail 31, and the air slider 34 and the lower base 32 form a bracket 35. The lower base 32 can move in parallel along the surface of the two-axis polishing machine 10 by driving the air slider 34 by being connected through the intermediary.

Next, the reciprocating mechanism will be described. As shown in FIG. 4, a middle base 40 is provided above the lower base 32. A through hole 42 for providing a cam mechanism 41 to be described later is formed at the right front corner of the middle base 40, and a groove member 43 is fixed below the through hole 42 on the upper surface of the lower base 32. Has been established.

As shown in FIG. 9, two middle guide rails 44 are fixedly provided on the upper surface of the lower base 32 behind the groove member 43 in parallel with the lower guide rails 31. The guides 45, 45 having concave cross sections fixed at four places on the lower surface of the middle base 40 are slidably inserted into the middle guide rails 44, 44, so that the middle base 40 becomes lower base 32. It is possible to move in the same direction.

Further, as shown in FIG. 6, a motor base 46 is fixed above the through hole 42 of the middle base 40 so as to straddle the through hole 42, and a reduction gear 47 is attached to the motor base 46. The motor 48 is mounted via the motor.

As shown in FIG. 8, the output shaft 47 a of the speed reducer 47 faces downward, and a circular rotating member 49 is fixedly provided at the lower end thereof. The rotating member 49 rotates in the through hole 42 by the rotation of the motor 48. However, below the rotating member 49, a cam shaft 50 is rotatably fixed via a bearing 50a at a position eccentric to the output shaft 47a of the speed reducer 47 with a nut 50b, and is fixed to a lower end of the cam shaft 50. The formed circular cam 51 is housed in the lateral groove 43a of the groove member 43 on the upper surface of the lower base 32. The lateral groove 43a of the groove member 43 has a width to accommodate the outer periphery of the circular cam 51 and has a groove shape oriented in a direction perpendicular to the middle guide rail 44, that is, in the direction of the biaxial polishing machine 10. It has been done.

With the above configuration, when the motor 48 is rotated, the rotating member 49 is rotated via the speed reducer 47, and the circular cam 51 is rotated at an eccentric position with respect to the output shaft 47a of the speed reducer 47. , The middle base 40 can be reciprocated along the middle guide rails 44, 44.

Next, the feed mechanism will be described. As shown in FIG. 4, two upper guide rails 52, 52 are fixed to the upper surface of the left rear portion of the middle base 40 at intervals with respect to the lower guide rails 31, 31. An upper base 53 is provided above the left rear portion of the middle base 40 and has an area reduced from the middle base 40. Guides 54, 54,... By being inserted into the rails 52, 52, the upper base 53 is movable along the upper guide rails 52, 52 in a direction approaching or separating from the biaxial polishing machine 10.

As shown in FIG. 4, a rack 55 is fixed along the right end of the upper base 53, and a small supporting plate is provided on the upper surface of the middle base 40 from the side close to the rack 55 to the right. The support plate 56, the medium-sized support plate 57, and the large-sized support plate 58 are fixedly provided, and the respective support plates 56, 57, 58 are provided with through holes 56a, 57a, 58a.

As shown in FIG. 5, a motor 61 is fixedly mounted on the large-sized support plate 58 via a speed reducer 60, and a hysteresis clutch is mounted on the medium-sized support plate 57 via the output shaft 62 of the speed reducer 60. 63, a rotating shaft (not shown) of the clutch 63 is rotatably supported by a through hole 56a of the small supporting plate 56, and a pulley 64 and a rack 55 are provided at an end of the rotating shaft. Is fixedly provided.

As shown in FIGS. 10 and 11, a rotary encoder 66 fixed to a support plate 66 a is provided in front of the hysteresis clutch 63 on the upper surface of the middle base 40. By connecting a pulley 64 provided on the rotating shaft and a pulley 67 provided on the rotary encoder 66 via a belt 68, the moving distance of the upper base 53 back and forth is measured.

With such a configuration, by driving the motor 61, the pinion gear 65 is rotated via the speed reducer 60 and the clutch 63, and the upper base 53 is connected via the rack 55 to the upper guide rail 52, 52 can be moved in a direction approaching the biaxial polishing machine 10.

Next, the circular motion mechanism will be described. As shown in FIG. 4, a support 71 having an insertion hole 70 in the direction of the biaxial polishing machine 10 is fixedly provided on the upper surface of the upper base 53, and a support shaft 72 is provided in the insertion hole 70 of the support 71. Are rotatably inserted through bearings 71a and the like (see FIG. 12). A rotating piece 73 is fixed to the front end of the support shaft 72, while a T-shaped clamp support member 74 is fixed to the rear end of the support shaft 73.

On the other hand, as shown in FIG. 2, a motor 75 supported by a motor base 76 a and a speed reducer 76 are fixedly mounted on the upper surface of the middle base 40 on the right side of the upper base 53, and a rotating shaft of the speed reducer 76. Reference numeral 77 protrudes horizontally forward, and a sliding cam 78 is fixed to the end thereof. The sliding cam 78 has a lateral groove 79 in the diametrical direction, and a convex pivot 80 is pivotally mounted on the lateral groove 79 so as to be rotatable and slidable along the groove direction. A connecting member 81 is rotatably connected to a front end of the connecting member 80, and one end of an adjusting screw 82 is screwed into the connecting member 81 in a direction perpendicular to the pivot shaft 80.

On the other hand, a support shaft 83 protrudes from an eccentric position of the support shaft 72 on a rotation piece 73 at the front end of the support shaft 72 rotatably inserted into the support 71 of the upper base 53. The other end of an adjusting screw 82 screwed into the connecting member 81 on the slide cam 78 side is screwed to a connecting member 84 pivotally mounted on the support shaft 83.

With the above configuration, when the motor 75 is driven, the sliding cam 78 is rotated, so that the pivot shaft 80 reciprocates along the lateral groove 79, and the rotating piece 73 is moved via the adjusting screw 82. The circular motion is performed around the support shaft 72, and the T-shaped clamp support member 74 fixed to the rear end of the support shaft 72 is circularly moved.

In the above configuration, the reciprocating mechanism for reciprocating the middle base 40 and the circular motion mechanism for circularly moving the clamp support member 74 (which supports the clamp means 22 described later) are simultaneously operated. In addition, the attachment jig 22 fixed to the clamp means 22 can be swung so as to draw a locus in which a figure 8 is laid on the surface of the polishing machine 6 (or 7).

As shown in FIG. 4, the clamp means 22 has front and rear standing plates 85, 85 and left and right width plates 86, 86 fixed on a flat surface on the upper part of the clamp support member 74. A holding piece 87 is provided between the base plates 85. A clamp shaft 88 is rotatably provided on the holding piece 87, and the clamp shaft 88 is screwed into a front fixed plate 85. With such a configuration, the clamping plate 87 can be moved back and forth by rotating the clamp lever 89 fixed to the front end of the clamp shaft 88.

With this configuration, as shown in FIGS. 6 and 7, the mounting jig 21 is inserted between the rear fixing plate 85 and the holding plate 87 to rotate the clamp lever 89. The mounting jig 21 can be tightened and fixed by the holding plate 87.

As shown in FIG. 6, the mounting jig 21 is formed of an integrally formed metal block having a rising piece 23 on the upper surface of the rear end of a horizontally long rectangular parallelepiped. A plurality of mounting holes 24, 24,... For inserting ferrules 20a fixed to the end of the optical fiber 20 are formed.

In order to fix the ferrules 20a to the respective mounting holes 24, as shown in FIG. 3, a mounting screw 25 screwed into the mounting hole 24 from the upper end of the rising piece 23 is attached to the ferrule 20a. It can be fixed by tightening. Note that such a method of fixing the ferrule 20a is an example, and the mounting hole 24 and the mounting screw 25 are not shown in other drawings of FIG.

A water receiving plate 29 is screwed on the upper surface of the clamp support member 74 shown in FIG. 4, as shown in FIG. 5, and water used for polishing the end face of the optical fiber 20 is supplied to the water receiving plate 2. 9 may be received. The water receiving plate 29 has no frame formed at the rear, and water can flow down from the rear without the frame. Further, a gutter 28 is provided below the flowing water as shown in FIG. 1 to perform water treatment.

As shown in FIG. 10 or FIG. 11, two micrometers 90 are separated from each other vertically by a T-shaped bracket 91 fixed to the upper surface of the left end of the upper base 53. It is fixed. As shown in FIG. 13, the upper and lower micrometers 90, 90 are arranged with their operating rods 92, 92 directed horizontally rearward.

On the other hand, an air cylinder 94 fixed to the middle base 40 is provided behind the micrometers 90, 90, and the stopper 95 is configured to move up and down by driving the cylinder 94. The stopper 95 can move up and down between locking pieces 96, 96 protruding up and down of the cylinder 94.

In this embodiment, when the end faces of a large number of optical fibers 20, 20,... Of the mounting jig 21 fixed to the clamping means 22 are polished using the rough finishing polishing machine 6 of the biaxial polishing machine 10. As shown in FIG. 13, the stopper 95 is stopped at the raised position by the driving of the cylinder 94 and performs measurement by the upper micrometer 90. When the end faces of the optical fibers 20, 20... Are polished by using the finishing polishing machine 7 of the biaxial polishing machine 10, the stopper 95 is stopped at the lowered position in the direction of the arrow by driving the cylinder 94. The measurement is performed by the micrometer 90 below.

When the tip of the operating rod 92 of one micrometer 90 comes into contact with the stopper 95 fixed at the raised or lowered position depending on which of the two-axis polishing machines 10 is used, the feed The stop timing of the mechanism can be detected, and the end faces of the optical fibers 20, 20,... The polishing amount can be adjusted.

Hereinafter, the operation of the optical fiber end face polishing machine according to the present embodiment will be described. As shown in FIG. 3, the ferrule 20a of the optical fiber 20 is inserted into each of the mounting holes 24 of the mounting jig 21, and the mounting screws 25 are tightened. At this time, the end of each ferrule 20a is in a state of protruding from the rear surface of the mounting jig 21 toward the polishing plate 6 (or 7).

Next, as shown in FIG. 2, the optical fiber mounting jig 21 is set on the clamp means 22, and is fixed by tightening the clamp lever 89.

In a state before the operation of the end face polishing machine, as shown in FIGS. 1 and 2, the upper base 53 is moved in a direction away from the rough finishing polishing board 6, and the mounting is fixed accordingly. The tool 21 is in a standby state at a position separated from the rough finishing polishing machine 6. At this time, the upper and lower micrometers 90, 90 are also waiting at positions separated from the side surface of the air cylinder 94. Further, when the end surface is polished by the rough polishing polisher 6, the stopper 95 of the air cylinder 64 is stopped at the upper position.

By starting rotation of the biaxial polishing machine 10 and simultaneously driving the motor 48 of the reciprocating mechanism and the motor 75 of the circular motion mechanism, the mounting fixture fixed to the clamp means 22 is fixed. The end faces of the optical fibers 20, 20,... Of the tool 21 are swung so as to draw a trajectory such that the figure 8 is set to be horizontal with respect to the surface of the rotating rough finishing polishing machine 6.

When the pinion 65 is rotationally driven by the motor 61, the operation of the feed mechanism moves the clamp means 22 in a direction approaching the rough finishing polishing board 6.

At this time, the movement of the upper base 53 causes the motor 61 to stop driving the pinion 65 when the upper micrometer 90 comes into contact with the end surface of the stopper 95 at the ascending position by the air cylinder 94. In the state shown in FIG. 3, the end faces (end faces of the ferrules 20a) of a large number of optical fibers 20, 20,... Of the mounting jig 21 fixed to the clamp means 22 by the roughing polishing board 6 are polished by a set polishing amount. .

Next, after the end surface polishing by the rough polishing disc 6 is performed for a predetermined time, when the pinion 65 is driven to rotate in the opposite direction by the motor 61, the clamping means 22 is separated from the rough polishing disc 6. Move in the direction.

Next, the lower base 32 is moved in parallel along the surface of the two-axis polishing machine 10 by driving the air slider 34 and stopped at a position in front of the finishing polishing machine 7. The clamp means 22 is moved in a direction approaching the polishing grinder 7 by rotating the pinion 65 by the drive of.

At this time, the stopper 95 of the air cylinder 64 moves to the lower position and acts on the lower micrometer 90 as described above.

Thereafter, the end faces of the optical fibers 20, 20,... Are polished by the finishing polisher 7 by the set amount of the lower micrometer 90 by the same operation as the end face polishing of the rough finishing polisher 6. it can.

In the configuration of the present embodiment described above, in addition to polishing the end surface of the optical fiber 20 so as to form a vertical surface with respect to the axial direction, in addition to polishing the end surface of the optical fiber 20 with an inclination, This can be achieved by a method of fixing the mounting jig 21 in an inclined state with respect to the clamp means 22 or the like.

[0053]

[Effect of the invention]

 As described above, according to the optical fiber end face polishing machine of the present invention, a large number of optical fibers can be mounted on the mounting jig, and the end faces of these optical fibers can be simultaneously polished.

Further, the optical fiber end face polishing machine of the present invention includes a biaxial polishing machine in which a rough polishing machine and a finishing polishing machine are arranged side by side on the same plane. The end faces of a large number of optical fibers of the mounting jig fixed to the pumping means can be automatically moved and approached to polish the end faces. It is possible to automatically perform the two steps of finish polishing.

Further, the mounting jig fixed to the clamping means can be swung so as to draw a locus of an eight-shape with respect to the surface of each polishing machine. The end faces of a large number of optical fibers attached to the tool can be polished using a wide area of the polishing machine, and the use efficiency of the polishing machine can be greatly improved.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of an optical fiber end face polishing machine according to the present invention.

FIG. 2 is a perspective view showing a configuration above a lower base of the optical fiber end surface polishing machine according to the present invention;

FIG. 3 is a cross-sectional view of the mounting jig showing a state where the optical fiber is mounted on the mounting jig in the present invention.

FIG. 4 is a perspective view illustrating a configuration above a lower base of the optical fiber end face polishing machine according to the present invention, in which components are partially removed.

FIG. 5 is a perspective view showing a state where a motor for a feed mechanism and the like are attached to the configuration of FIG. 4;

6 is a perspective view showing a state where a motor and the like for a reciprocating mechanism are attached to the configuration of FIG. 5;

FIG. 7 is a perspective view showing a state in which an optical fiber attaching jig is attached to the clamp means of FIG. 6;

FIG. 8 is a partial sectional view showing a cam and the like in the reciprocating mechanism of the present invention.

FIG. 9 is a side view of the optical fiber end surface polishing machine according to the present invention on a bed.

FIG. 10 is a plan view of an optical fiber end face polishing machine according to the present invention.

FIG. 11 is a front view of the optical fiber end surface polishing machine according to the present invention on a bed.

FIG. 12 is a side view of the optical fiber end surface polishing machine according to the present invention on a bed.

FIG. 13 is a side view of the optical fiber end-face polishing machine according to the present invention on a bed, showing an operation state of the microswitch.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... End surface grinder, 2 ... Bed, 4 ... Housing, 5 ... Spindle, 6 ... Finishing polishing machine, 7 ... Roughing polishing machine, 10
... 2-axis polishing machine, 12 ... moving motor, 20 ... optical fiber, 21 ... mounting jig, 22 ... clamping means, 24 ... mounting hole, 31 ... lower guide rail, 32 ... lower base, 4
0: middle base, 41: cam mechanism, 43: groove member, 44:
Middle guide rail 47a Output shaft 48 Reciprocating motor 49 Rotating member 50 Camshaft 51 Circular cam 52 Upper guide rail 53 Upper base 55
Rack, 65: Pinion, 61: Motor for feed mechanism, 6
3 ... Hysteresis clutch, 72 ... Support shaft, 73 ... Rotating piece, 74 ... Clamp support member, 75 ... Circular motion motor, 78 ... Sliding cam, 79 ... Side groove, 80 ... Pivot shaft, 81
... Connecting member, 82 ... Adjusting screw, 83 ... Support shaft, 84 ... Connecting member, 85 ... Standing plate, 87 ... Nipping piece, 89 ... Clamp lever, 90 ... Micrometer, 94 ... Air cylinder, 95 ... Stopper.

Claims (2)

[Utility model registration claims] A rough polishing machine fixed to two spindles driven in rotation and a polishing machine for finishing are provided in parallel on the same plane, and a plurality of optical fiber ends are provided. Mounting jigs for fixing the parts in a juxtaposed state, clamping means for detachably fixing the mounting jigs, and mounting jigs fixed to the clamping means in front of the respective surfaces of the two-axis polishing machine. A moving mechanism for moving to a position, and a feed for bringing the end faces of a number of optical fibers of the mounting jig fixed to the clamp means into contact with the one board face by a predetermined amount by bringing the clamp means closer to the one board face. A mechanism, a reciprocating mechanism for reciprocating the clamp means approaching the one board surface in a horizontal direction along the one board surface, and causing a reciprocating circular motion of the clamp means along the one board surface. An arc motion mechanism, and by simultaneously operating the reciprocating motion mechanism and the arc motion mechanism, the end faces of the plurality of optical fibers of the mounting jig fixed to the clamp means are attached to the one board surface being rotated. Then, after being polished by swinging, the polishing means is moved to a position in front of the other surface of the two-axis polisher after the polishing by one surface of the two-axis polisher.
An end polishing machine for an end face of an optical fiber, wherein end faces of the plurality of optical fibers are polished in a step. 2. A method according to claim 1, wherein two micrometers are fixed in parallel in a vertical direction to an upper base constituting said feeding mechanism, and a stopper is fixed to the middle base constituting said reciprocating mechanism so as to be able to move up and down. Elevation or lowering or lowering which is selected depending on which one of a rough polishing machine and a finishing machine of a two-axis polishing machine is used to polish the end faces of a large number of optical fibers of the mounting jig fixed to the clamp means. The stop timing of the feed mechanism is detected by the tip of the one micrometer abutting on the stopper in the state, and the stop amount of the one micrometer is detected.
2. The optical fiber end surface polishing machine according to claim 1, wherein the amount of polishing of the end surface of the optical fiber with respect to each of the rough polishing polishing machine and the finishing polishing machine of the shaft polishing machine is adjusted.