JP2002066895A - Polishing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a polishing machine to perform high-precise polishing processing, the working efficiency is excellent, and be suitable for use at a working site. SOLUTION: A plurality of tape-form polishing sheets 1a, 1b, and 1c juxtaposed with each other are capable of being carried over a platen 45. A work to be polished support body 50 to support a work 7 to be polished is slid in a direction vertical to the carry directions of a plurality of the tape-form polishing sheets 1a, 1b, and 1c and the work 7 to be polished is positioned on one of a plurality of tape-form polishing sheets 1a, 1b, and 1c. The work to be polished support body 50 and the platen support body 41 are caused to integrally effect a periodic motion, such as circular motion.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a polishing machine for polishing an object to be polished, such as an end face of a ferrule, into which an optical fiber is inserted. It is about the machine.

[0002]

2. Description of the Related Art In order to reduce a connection loss at the time of connecting an optical connector, an end face of a ferrule in which an optical fiber is inserted is usually polished into a convex spherical shape.

[0003] In this spherical machining, the following steps are usually performed.

(1) The surplus adhesive at the tip of the ferrule is removed by rough polishing. (2) The tip of the ferrule is processed into a spherical surface (grind).
Further polishing the surface (polishing) (3) Grinding the modified layer at the fiber tip (finishing) JP-A-9-29599, JP-A-10-32899
In Japanese Patent Publication No. 7, the spherical processing of the ferrule end face as described above is performed using a tape-shaped abrasive paper.

In these prior arts, a ferrule into which an optical fiber is inserted is brought into contact with a polishing table having a concave portion via a tape-shaped polishing body, and in this state, the tape-shaped polishing body is run and the ferrule is rotated. It is disclosed that the ferrule end surface is polished by reciprocating in a direction perpendicular to the running direction of the tape-shaped polishing body while performing the polishing.

In these prior arts, first, a tape-shaped abrasive having a coarse particle size is set in an apparatus, and pre-processing of a plurality of ferrule end faces is sequentially performed. When the tape-shaped abrasive is wound up to the end, Finishing is performed by replacing the tape-shaped abrasive body with a finer one.

[0007]

However, in the above prior art, since there is only one system for transporting the tape-shaped abrasive body, it is necessary to use a plurality of abrasive papers having different particle sizes as in the above-mentioned spherical polishing of the ferrule end surface. If there is, it is necessary to interrupt the work every time the process changes and replace the tape-shaped abrasive body, it is cumbersome and inefficient, and it is not suitable for high places such as fiber laying sites and poor site work .

Further, in the above-mentioned prior art, since the ferrule is rotated, the optical fiber inserted into the ferrule also rotates, causing a problem that the optical fiber is stressed.

In this prior art, since the chuck for supporting the ferrule and the polishing table for pressing the polishing paper are separately fixed, it is difficult to obtain the accuracy of the perpendicularity between the ferrule and the surface of the polishing table. There is a high possibility that a vertex shift will occur in the convex spherical surface of.

[0010] The present invention has been made in view of such circumstances, and can perform high-precision polishing with good work efficiency, and is suitable for use in a bad environment such as a fiber laying site or in a factory. It is an object of the present invention to provide an improved polishing machine.

[0011]

According to one aspect of the present invention,
In a polishing machine for polishing the tip of an object to be polished using a tape-shaped polishing paper, a platen support for supporting a platen made of an elastic body, and a tape for conveying a plurality of tape-shaped polishing papers arranged in parallel on the platen Conveying means, a polished object slidable in a direction perpendicular to a conveying direction of the plurality of tape-shaped abrasive papers, and supporting the polished object such that a tip of the polished object comes into contact with the tape-shaped abrasive paper. It is characterized by comprising a support, and a periodic movement mechanism for causing the object-to-be-polished support to perform a predetermined periodic movement.

According to the present invention, the object to be polished is positioned on one of the plurality of tape-shaped abrasive papers, and the support for the object to be polished is circularly moved while the tape-shaped abrasive paper on which the object to be polished is positioned is moved. Then, the object to be polished is polished. When the polishing is completed, the object to be polished is slid to position the object to be polished on another tape-shaped abrasive paper, and the object to be polished is cyclically moved while running the tape-shaped abrasive paper as described above. Then, the object to be polished is polished. This operation is repeated. By making the particle size of each tape-shaped abrasive paper different, the polishing operation in each step can be continuously performed without interruption of the operation due to tape replacement or the like.

In another embodiment of the present invention, the platen support and the object-to-be-polished are integrally formed, and the object-to-be-polished and the platen support are integrally and periodically moved.

According to the present invention, since the platen support and the object-to-be-polished are integrally formed, the object to be polished can always take a predetermined angle, for example, a right angle with respect to the platen. Polishing can be performed.

Still another aspect of the present invention is characterized in that the tape transport means has a transport switching means for selectively transporting the plurality of tape-shaped abrasive papers.

In the present invention, only the tape-shaped abrasive paper for polishing is carried, and the other tapes are stopped.
Even if a plurality of tape-shaped abrasive papers are set in the same manner, no tape other than the tape used is conveyed.

[0017]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

FIG. 1 shows the overall internal structure of a polishing machine according to the present invention.

This polishing machine has three tape-shaped polishing papers 1
a, 1b, and 1c can be run in parallel, and the three types of polishing paper are used to perform the spherical processing of the ferrule end surface of the optical fiber connector as the object to be polished.

For example, a water-resistant abrasive tape is used as the first abrasive paper 1a, and the adhesive at the tip of the ferrule is removed.
As the second polishing paper 1b, a grinding tape having a coarse particle size is used, and grinding and polishing of the tip of the ferrule are executed. As the third polishing paper 1c, a polishing tape having a fine particle size is used, and finishing of the tip of the ferrule is executed.

This polishing machine is roughly classified into a tape transport mechanism 10, a polishing section 40, a circular motion mechanism 80, and a driving force transmission mechanism 100.

First, in addition to FIG. 1, the tape transport mechanism 10 will be described with reference to FIGS.

The tape transport mechanism 10 for transporting the three types of abrasive papers 1a to 1c is basically driven independently of three systems.

Three types of tape-shaped abrasive paper 1a, 1b, 1c
Is wound around three bobbins 11a, 11b, 11c. These three bobbins 11a, 11b, 11c
It is fixed to a bobbin rotating shaft 12 rotatably mounted on a side plate 4a of the polishing machine housing 4.

The three types of tape-shaped abrasive papers 1a, 1b, 1c fed from the bobbins 11a, 11b, 11c are
After being hung over the two guide rollers 13, 14 and 15, and further hung over the discharge rubber roller 16, it is discharged through the discharge port 17. Each of the guide rollers 13, 14, 15 is provided with three rollers in parallel, and these three rollers are independently rotatable. The discharge roller 16 is made of an elastic material such as rubber, and one end thereof is fixed to a toothed driven pulley 18. Therefore, the discharge roller 16 and the driven pulley 18 rotate integrally. The driven pulley 18 is connected to the timing belt 1.
9 and the worm pulley 20 constitute a wrapping transmission mechanism. In this case, the worm pulley 20 is disposed on the side close to the motor 90 as a drive source, and constitutes a driven pulley.

Three pressing rollers 21a, 21b, and 21c are disposed so as to face the discharging roller 16, and the discharging roller 16 and the pressing rollers 21a, 21b, and 21c are disposed.
and the tape-shaped abrasive papers 1a, 1b, 1c are respectively run. The pressing rollers 21a, 21b, and 21c are provided so as to be rotatable about the rotation shaft 23 with respect to the arm bodies 22a, 22b, and 22c.

The arm bodies 22a, 22b and 22c are substantially L
It has a frame structure having right and left side plates, and the pressing rollers 21a, 21b,
21c, a ball support (ball plunger) 24a,
24b and 24c. Arm body 22a, 2
2b and 22c are rotatably supported by a support shaft 25, and by this rotation, the pressing rollers 21a, 21b,
21 c can be moved toward and away from the discharge roller 16.

The ball supports 24a, 24b, 24c are
A ball 26 that freely rolls is provided at each of its distal ends.

Above the ball supports 24a, 24b, 24c, these three ball supports 24a, 24b, 2
Cam surface 31 for selectively pressing 4c (see FIG. 4)
Is provided on the lower surface.
The tape switching cam 30 sandwiches the upper plate 4b of the polishing machine housing 4 between the upper body and the lower body that are bolted together, and moves in the tape running direction via a guide groove 32 (see FIG. 4) formed between the upper body and the lower body. It is configured to be slidable in a direction perpendicular to. The cam surface 31 is connected to the ball supports 24a, 24
b, 24c, three stages (most protruding surface,
(Idle surface, standby surface).

FIG. 4 shows a state in which the tape switching cam 30 is positioned at one position (see FIG. 1). The most protruding surface comes into contact with the ball 26 of the ball support 24a. An idle surface is in contact with 24b and 24c. Therefore, the ball support 24a is pressed downward, and the arm 22a rotates about the support shaft 25 in the approaching direction of the discharge roller 16. As a result, the arm body 22
The pressing roller 21a supported by a is pressed against the discharge roller 16 so that the tape-shaped abrasive paper 1a can be transported. At this time, the cam surfaces 3 are provided on the other ball supports 24b and 24c.
Since the pressing force from No. 1 is not acting, the pressing roller 21
The b and 21c are only in contact with the surface of the discharge roller 16 by the weight of the arm bodies 22b and 22c.
In this state, the pressing rollers 21b and 21c also roll (idle) with the rotation of the discharge roller 16, but the tape-shaped abrasive paper 1b and 1c are not conveyed because the frictional force is small.

Similarly, when the tape switching cam 30 is slid to the two positions, only the pressing roller 21b is pressed against the discharge roller 16, so that only the tape-shaped abrasive paper 1b can be conveyed. When the tape switching cam 30 is slid to the three positions, only the pressing roller 21c is pressed against the discharge roller 16, and only the tape-shaped abrasive paper 1c can be transported. When the tape switching cam 30 is located at the 0 position, all the tape transport systems are in a standby state.

Next, with reference to FIGS. 5 and 6 in addition to FIG. 1, a description will be given of the polishing section 40 for polishing the tip of the ferrule 7 to which the optical fiber 6 is adhered and fixed.

The polishing section 40 includes a ferrule holder base (platen support) 41 for supporting three platens 45 arranged in parallel for three types of polishing, and a direction perpendicular to the tape running direction with respect to the ferrule holder base 41. Slidable ferrule holder (substrate to be polished) 50, 3
Ferrule holder 5 located at any of the positions
0 for pressing and fixing the three holder pressing members 60a, 60
0b and 60c.

Between the pair of upper base bodies 42a, 42b and the lower base body 43 constituting the ferrule holder base 41, a tape running for running three tape-shaped abrasive papers 1a, 1b, 1c in parallel. A passage (hole) 44 is formed. Three platens 45 made of an elastic body are fixed to the lower base body 43, and the tape-shaped abrasive paper 1a, 1
b, 1c run on each platen 45.

The pair of upper base bodies 42a and 42b have a rail shape extending in a direction (arrow Y) perpendicular to the tape running direction, and function as guide rails for sliding the ferrule holder 50 in the arrow Y direction. .

The ferrule holder 50 has a carrier portion 51 movable along a pair of upper base members 42a and 42b.
And a pair of shaft supports 52 disposed above the carrier portion 51, and a ferrule presser 54 that can rotate vertically about a shaft 53 supported between the pair of shaft supports 52. ing.

The carrier part 51 is formed with a ferrule insertion hole 55 having a shape corresponding to the ferrule 7 to be inserted. In this case, the ferrule 7 is positioned with respect to the carrier portion 51 by abutting the flange portion of the ferrule 7 against the abutting wall 55 a formed in the ferrule insertion hole 55.

The ferrule retainer 54 also has a groove 54a through which the ferrule 7 penetrates. The ferrule holder 54 presses the ferrule 7 from above by contacting the flanges of the ferrule 7 with the portions on both sides of the groove 54 a of the ferrule holder 54.

The three holder pressing members 60a, 60b, 60
“c” is for pressing and fixing the ferrule holder 50 and applying an appropriate pressing force in the direction of the platen 45 to the ferrule 7.

The holder pressing members 60a, 60b, 60c
The shaft 61 is provided rotatably with respect to the upper base body 42a. Each shaft 61 has a cylindrical coil spring 62a, 6
2b, 62c are provided, and the holder pressing body 60a,
60 b and 60 c are urged in the direction in which the ferrule holder 50 is pressed.

With one of the holder pressing members 60a, 60b, and 60c raised upward against the spring force of the cylindrical coil spring 62, the ferrule holder 50 on which the ferrule 7 is set is moved to the position of the holder pressing member. When the holder pressing body lifted upward is released after sliding, the holder pressing body rotates downward by the return force of the cylindrical coil spring 62, and presses and fixes the ferrule presser 54 of the ferrule holder 50 from above.

Next, with reference to FIGS. 7 and 8, a description will be given of the circular motion mechanism 80 for causing the entire polishing section 40 to perform a circular motion.

As shown in FIG. 6, the eccentric shaft 71 of the eccentric cam 70 which is rotated by the driving force of the motor 90 is fixed to the lower base body 43 of the ferrule holder base 41. Therefore, when the main shaft 72 of the eccentric cam 70 is rotated by the rotation of the motor 90, the eccentric shaft 71 follows a circular orbit around the main shaft 72. Therefore, the ferrule holder base 41, that is, the entire polishing section 40 makes a circular motion.

In order to enable such a circular motion of the ferrule holder base 41, a circular motion mechanism 80 of an XY table mechanism type is provided below the lower base body 43.

The fixed base 81 has two X-axis bases 82.
Has been fixed. Each X-axis base 82 has a V pulley 8
2 are provided. On both sides of the intermediate base 84,
A V guide 85 for engaging the V pulley 83 and moving the intermediate base 84 in the X direction is provided. On the upper surface of the intermediate base 84, two Y-axis bases 86 are fixed. Each Y-axis base 86 is provided with two V pulleys 87 each. V guides 88 for engaging the V pulley 87 and moving the lower base body 43 in the Y direction are provided on both side ends of the lower surface of the lower base body 43 of the ferrule holder base 41.

According to the circular motion mechanism 80 composed of the above components, the main shaft 72 of the eccentric cam 70 rotates and the eccentric shaft 71
Makes a circular motion, this circular motion is caused by the Y of the lower base body 43 of the ferrule holder base 41 with respect to the intermediate base 84.
Base 84 against directional linear movement and fixed base 81
In the X direction. Accordingly, the lower base body 43 of the ferrule holder base 41 performs a circular motion with respect to the fixed base 81.

As shown in FIGS. 7 and 8, a long hole 47 for sliding the ferrule holder 50 is formed in the lower base body 43 of the ferrule holder base 41. An elongated hole 84a for rotating the eccentric cam 70 is formed.
Is formed with a hole 81a for inserting the main shaft 72 of the eccentric cam 70.

Next, the driving force transmitting mechanism 100 for driving the above-described tape transport mechanism 10 and circular motion mechanism 80 will be described with reference to FIG.

The tape transport mechanism 10 and the circular motion mechanism 80 use one motor 90 as a drive source.

The circular motion mechanism 80 includes a motor 90, a motor rotating shaft 90a, and a gear 9 fixed to the motor rotating shaft 90a.
1. Drive on the main shaft 72 of a gear 92 meshed with the gear 91, a worm 93 coaxially coupled to the gear 92, a worm wheel 94 meshed with the worm 93, and an eccentric cam 70 coaxially coupled to the worm wheel 94. Power is transmitted.

On the other hand, the tape transport mechanism 10 includes a motor 9
0, motor rotating shaft 90a, gear 91, gear 92, worm 93, worm wheel 94, worm wheel 94
The driving force is transmitted through a worm 95 coaxially coupled to the worm wheel 96, a worm wheel 96 meshed with the worm 95, and a worm pulley 20 coaxially coupled to the worm wheel 96.

Next, the operation of the operator and the operation of each mechanism when polishing the end face of the ferrule 7 of the above-mentioned polishing machine will be described.

First, as the first abrasive paper 1a (rough abrasive paper)
A water-resistant polishing tape is set, a spherical polishing paper (diamond polishing tape) is set as the second polishing paper 1b, and a finish polishing paper (silica polishing tape) is set as the third polishing paper 1c.
Is set.

(Step of Removing Excess Adhesive) In this state, the ferrule 7 into which the optical fiber 6 has been inserted is set in the ferrule holder 50. Then, the ferrule holder 50 is slid onto the first polishing paper 1a, and the ferrule holder 50 is further pressed and fixed by the holder pressing body 60a, and the end face of the ferrule 7 is brought into contact with the first polishing paper 1a with a predetermined pressing force. Further, the tape switching cam 30 is positioned at one position (see FIG. 1), and the motor 90 is turned on. Thus, the above-described tape transport mechanism 10 is driven, and the first abrasive paper 1a is transported. At the same time, the ferrule holder base 41, that is, the entire polishing section 40 performs a circular motion, and as a result, the ferrule 7 supported by the ferrule holder 50 also performs a similar circular motion.

FIG. 10 shows an example of the locus of the ferrule 7 on the polishing paper 1 during polishing.

As described above, the step of removing the surplus adhesive at the tip of the ferrule using the rough abrasive paper 1a is executed. When this step is completed, the motor 90 is temporarily stopped.

(Grinding and Polishing Step) Next, the ferrule holder 50 is slid onto the second polishing paper 1b, and the ferrule holder 50 is further pressed and fixed by the holder pressing body 60b. With a predetermined pressing force. further,
Position the tape switching cam 30 at two positions (see FIG. 1),
The motor 90 is turned on. Thus, the above-described tape transport mechanism 10 is driven, and the second abrasive paper 1b is transported. At the same time, the entire polishing section 40 makes a circular motion, and the ferrule 7 makes a similar circular motion.

Thus, the grinding and polishing steps using the spherical abrasive paper 1b are performed. When this step is completed, the motor 90 is temporarily stopped.

(Finishing Step) Next, the ferrule holder 50 is slid onto the third polishing paper 1c, and the ferrule holder 50 is further pressed and fixed by the holder pressing body 60c, and the end surface of the ferrule 7 is fixed to the third polishing paper 1c. Contact with the pressing force of. Further, the tape switching cam 30 is positioned at three positions (see FIG. 1), and the motor 90 is turned on. Thereby, the tape transport mechanism 10 described above is
Is driven, and the 32nd abrasive paper 1c is transported. At the same time, the entire polishing section 40 makes a circular motion, and the ferrule 7 makes a similar circular motion.

Thus, the finishing step using the finished abrasive paper 1c is performed.

As described above, according to this embodiment, a plurality of tape-shaped abrasive papers 1a to 1c having different particle sizes are arranged side by side, and the end face of the ferrule 7 is polished by sequentially using each of the abrasive papers. The polishing operation in each step can be performed continuously without being interrupted by a tape change or the like as in the related art. Therefore, it is useful for high places such as a fiber laying site, poor site work, and a factory.

Further, according to this embodiment, the platen support 41 and the ferrule support 50 have an integral structure,
The platen support 41 and the ferrule support 50
The ferrule 7
Can always take a vertical position with respect to the platen 455, and can perform high-precision polishing without occurrence of a shift in a vertex.

In this embodiment, the polishing is performed using a running tape-shaped abrasive paper.
Since the polishing powder does not remain at the polishing position, dry polishing with good workability can be completed, and it is not necessary to perform wet polishing with a long time and poor workability.

Further, since the type of the platen 45 can be changed for each process, each process can be further optimized. In the above embodiment, the platen 45 is divided into three parts, but one platen of the same material is used.
A platen of the same material may be used in each step.

In the above embodiment, one ferrule 7 is supported by the ferrule holder 50. However, two or more ferrules 7 may be supported and a plurality of polishing processes may be performed simultaneously. Good.

In the above embodiment, the arm 22
a, 22b, 22c are the cam surfaces 3 of the tape switching cam 30
Only the arm body selected by using the discharge roller 16
The other arm is made to idle on the discharge roller 16, but only a required arm body is pressed against the discharge roller 16 using an appropriate mechanism such as a spring, and the other rollers are separated from the discharge roller. You may comprise so that it may be separated.

Further, in the above embodiment, the ferrule 7 is made to perform a circular motion, but it may be made to perform any other periodic motion such as an elliptical motion or a linear motion. Also,
The platen 45 may be fixed, and a periodic motion such as a circular motion may be performed only on the ferrule holder 50 side.

In the above embodiment, the ferrule holder 50 is manually slid. However, the end of each process is appropriately detected, and in response to this detection, the ferrule holder 50 is automatically moved to the next tape position. You may make it do.

Further, the tape transport mechanism 10, the polishing section 4
0, the circular motion mechanism 80 and the driving force transmission mechanism 100 may employ any other mechanism or structure that achieves the same function as the above-described embodiment.

Further, in the above embodiment, the polishing machine of the present invention is applied to polishing the end face of the ferrule. However, the polishing machine may be applied to polishing of any object other than the ferrule.

[0071]

As explained above, according to the present invention,
A plurality of tape-shaped abrasive papers can be transported in parallel, and the object to be polished can be selectively slid and positioned on one of the plurality of tape-shaped abrasive papers. In addition, the polishing operation can be continuously and efficiently performed. Therefore, it is possible to provide a polishing machine suitable for a high place such as a fiber laying site or a poor site work.

Further, since the platen support and the object-to-be-polished are integrally formed, the object to be polished can always take a predetermined angle, for example, a right angle with respect to the platen.
High precision polishing can be realized.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an overall configuration of a polishing machine according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a tape transport mechanism of the embodiment of the polishing machine according to the present invention.

FIG. 3 is a side view showing a tape transport mechanism of the embodiment of the polishing machine according to the present invention.

FIG. 4 is a cross-sectional view showing a configuration near a discharge roller of the tape transport mechanism of the polishing machine according to the embodiment of the present invention.

FIG. 5 is a perspective view showing a polishing unit of the polishing machine according to the embodiment of the present invention;

FIG. 6 is a sectional view showing a polishing section of the polishing machine according to the embodiment of the present invention;

FIG. 7 is a perspective view showing a circular motion mechanism of the embodiment of the polishing machine according to the present invention.

FIG. 8 is an exploded perspective view showing a circular motion mechanism of the embodiment of the polishing machine according to the present invention.

FIG. 9 is a perspective view showing a driving force transmission mechanism of the embodiment of the polishing machine according to the present invention.

FIG. 10 is a diagram showing an example of a polishing locus of a ferrule in the embodiment of the polishing machine according to the present invention.

[Explanation of symbols]

 1a Tape-shaped abrasive paper 1b Tape-shaped abrasive paper 1c Tape-shaped abrasive paper 4 Polisher housing 4a Housing side plate 4b Housing upper plate 6 Optical fiber 7 Ferrule 10 Tape transport mechanism 11a Bobbin 11b Bobbin 11c Bobbin 12 Bobbin rotating shaft 13 Guide roller 14 Guide Roller 15 Guide roller 16 Discharge rubber roller 18 Follower pulley 19 Timing belt 20 Warm pulley 21a Press roller 21b Press roller 21c Press roller 22a Arm 22b Arm 22c Arm 24a Ball support (ball plunger) 24b Ball support (ball plunger) 24c Ball Support (Ball Plunger) 25 Support Shaft 26 Ball 30 Tape Switching Cam 31 Cam Surface 32 Guide Groove 40 Polishing Unit 41 Ferrule Holder (Platen support) 42a upper base body 42b upper base body 43 lower base body 44 tape running path (hole) 45 platen 50 ferrule holder (substrate to be polished) 51 carrier part 52 shaft support 54 ferrule presser 54a groove 55 Ferrule insertion hole 55a Butt wall 60a Holder pressing body 60b Holder pressing body 60c Holder pressing body 62a Cylindrical coil spring 62b Cylindrical coil spring 62c Cylindrical coil spring 70 Eccentric cam 71 Eccentric shaft 72 Main shaft 80 Circular motion mechanism 81 Fixed base 82 X-axis base 83 V pulley 84 intermediate base 85 V guide 86 Y axis base 87 V pulley 88 V guide 90 motor 91 gear 92 gear 93 worm 94 worm wheel 95 worm 96 worm wheel 100 driving force transmission mechanism

Continued on the front page F term (reference) 2H036 KA04 2H038 CA22 3C049 AA05 AA18 AB04 AB09 AC01 CB01 3C058 AA05 AA09 AA11 AA14 AB01 AB04 CA01 CB01 CB03 CB06

Claims (5)

[Claims] 1. A polishing machine for polishing a tip end of an object to be polished using a tape-shaped polishing paper, comprising: a platen support for supporting a platen made of an elastic material; and a plurality of tape-shaped polishing papers arranged in parallel. A tape transporting unit that transports the polishing object, and a slidable object that is slidable in a direction perpendicular to a conveying direction of the plurality of tape-shaped abrasive papers so that a tip of the polished object comes into contact with the tape-shaped abrasive paper. A polishing machine comprising: an object support to be polished; and a periodic motion mechanism for causing the object support to perform a predetermined periodic motion. 2. The apparatus according to claim 1, wherein the platen support and the object-to-be-polished are integrally formed, and the periodic movement mechanism causes the object-to-be-polished and the platen to be integrally and periodically moved. 2. The polishing machine according to 1. 3. The polishing machine according to claim 1, wherein the periodic motion mechanism is a circular motion mechanism that performs a circular motion. 4. The circular motion mechanism moves an eccentric cam shaft fixed to the platen support, and moves the platen support in a direction perpendicular to the direction in which the tape-shaped abrasive paper is transported and the direction in which the tape-shaped abrasive paper is transported. The polishing machine according to claim 3, further comprising an XY table mechanism that enables the polishing. 5. A polishing machine according to claim 1, wherein said tape transport means has a transport switching means for selectively transporting said plurality of tape-shaped abrasive papers.