JPH0379263A - Method and device for polishing ferrule - Google Patents

Abstract

PURPOSE:To continuously perform a finishing polishing from a rough polishing by one polishing plate by parting the polishing capacity degrees of a polishing plate in plural annular shapes by a concentric circle. CONSTITUTION:The end faces of ferrules 1A-1C to be polished are pressed to a rotating polishing plate 5, reciprocated and polished. By changing the position of this reciprocating motion the ferrule end face is moved in order to the sections 51, 52, 53 of different capacity degrees formed annularly on the polishing plate 5. Accordingly, a series of polishing works from a rough polishing to finishing polish are executed on this ferrule 1A-1C end face.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a ferrule polishing method and apparatus.

[Conventional technology]

Ferrules used for connecting single-core or multi-core optical fiber cables must have opposing ferrule connection contact surfaces as smooth as possible in order to reduce optical fiber connection loss.For this reason, ferrule connections are A suitable polishing machine is used for the purpose of polishing the end face.

[Problem to be solved by the invention]

When polishing the end face of a ferrule, it is necessary to first perform rough polishing, then medium polishing, and finally final polishing, in order to increase the degree of polishing, just as in the case of regular polishing of materials to be polished. Therefore, the polishing plate of the polishing machine must be replaced for each polishing process, which is complicated.

[Means to solve the problem]

This invention was made in order to solve the above-mentioned problems, and includes a process of rotating a polishing plate whose circular polishing surface is divided into a plurality of circular rings by concentric circles according to the degree of polishing ability, and a process of rotating a ferrule. a step of pressing and holding the surface to be polished against the polishing surface and reciprocating the polishing plate in the radial direction; and a step of sequentially shifting the position of the reciprocating movement in the radial direction after one polishing level of polishing work is completed. This is a method of polishing a ferrule having the following steps.

Further, a disc-shaped polishing plate is rotatably driven on the substrate, a sliding base is provided to be slidable in the radial direction of one of the polishing plates with respect to the substrate, and a sliding base is provided on the sliding base to reciprocate in the sliding direction. and a ferrule mounting arm attached to the slider and extending above substantially the center of the polishing plate, the polishing plate having a polishing capacity divided into a plurality of rings formed by concentric circles. This is a ferrule polishing device characterized by the following.

[Effect]

The end face of the ferrule to be polished is pressed against a rotating polishing plate and polished by reciprocating motion.

By changing the position of the reciprocating movement, the polishing operation is performed by sequentially moving the ferrule end face to areas of different polishing abilities on the polishing plate.

〔Example〕

An embodiment of the present invention will be described with reference to FIG.

A disk-shaped polishing plate 5 is rotatably provided on the upper part of the flat substrate 10, and a sliding base 8 is attached to a part of the substrate 10 outside the area where the polishing plate 5 is provided. It is slidably provided.

The sliding base 8 has a female threaded body 8A provided in a part thereof and a feed screw 9 rotatably provided on the substrate 1O, so that the feed screw 9 is rotated according to the rotation of a handle 11 attached to the end of the feed screw 9. It can be slid in the axial direction of the screw 9.

A rotating plate 7 is placed on the sliding base 8, and a polishing plate 5 is placed on the substrate 10.
The drive pulley 13 of the drive motor 12 rotates the drive pulley 13 of the drive motor 12 by means of an endless belt 14 such as a timing belt. A tension roller 15 is interposed in this belt drive mechanism,
This tension roller 15 has its shaft supported in a long hole and is tensioned by a tension spring 16.

A pair of guide rails 41 extend on the sliding base 8 in the same direction as the sliding direction thereof, and the slider 4 guided by these rails is connected to a link 6 whose one end is eccentrically attached to the rotary plate 7 so as to be rotatable. By being rotatably connected to the end, it is caused to reciprocate as the rotating plate 7 rotates.

An arm 3 is attached to the slider 4, and a mounting arm 2 for attaching ferrules IA, IB, IC, etc. to be polished is attached to the tip of the arm 3 so as to be rotatable within a plane parallel to the surface of the polishing plate 5. . The set screw 21 is used to stop and fix the mounting arm 2 from rotating.

An important feature of the present invention is that the polishing surface on the upper surface of the polishing plate 5 is divided into a plurality of circular rings by concentric circles, as clearly shown in FIG. In other words, in the case of FIG. 2, the rough polishing area 51. It is divided into three areas: a medium polishing area 52 and a final polishing area 53. This division can be done arbitrarily; for example, there are two areas: rough and medium polishing and final polishing.

In FIG. 1, reference numeral 17 indicates a polishing liquid tank, reference numeral 17A indicates a polishing liquid supply nozzle, and reference numeral 18 indicates a used polishing liquid recovery tank.

The polishing operation itself for one level of polishing performed by the above-mentioned polishing machine of the present invention is self-evident by looking at FIG. That is, FIG. 3 shows a state in which the ferrule IC is in contact with the rough polishing area 51 and being roughly polished.

A feature of this invention is the case of conversion of the degree of polishing.

In the case shown in Figure 1, the ferrule IC has been roughly polished (in this case, the ferrule IA has been finished polished).
The state is shown below, but next is the ferrule I that has been polished.
After removing A, turn the handle 11 to remove the sliding base 8.
can be moved a predetermined distance to the right in FIG. The ferrule IC is thus placed on the medium polishing area 52 and the ferrule I
B moves onto the final polishing area 53, and as the slider 4 moves back and forth, it comes into contact with each polishing area and is polished by reciprocating.

When one side of the mounting arm 2 is finished, the set screw 21 is loosened, the mounting arm 2 is rotated 180 degrees, and the polishing of the ferrule on the other side is continued.

〔Effect of the invention〕

According to this invention, since one polishing plate can be used commonly from rough polishing to final polishing, there is no need to replace the polishing plate every time, making the polishing work more efficient. Since the movement is perpendicular to the movement, it has the advantage that the ferrule surface that contacts the polishing plate can be polished efficiently and smoothly.

[Brief explanation of drawings]

FIG. 1 is a plan view showing an embodiment of the present invention, FIG. 2 is an enlarged plan view illustrating a polishing plate used in the present invention, and FIG. 3 is a partial side view showing the contact area between the polishing plate and the ferrule. It is. IA, IB, IC...ferrule, 2...mounting arm, 5...polishing plate, 8...sliding base, 10...substrate.

Claims (1)

[Claims] 1. A step of rotating a polishing plate (5) whose circular polishing surface is divided into a plurality of circular rings by concentric circles according to the degree of its polishing ability, and ferrules (1A, 1B, . . . ) ) of pressing and holding the surface to be polished against the polishing surface and reciprocating the polishing plate in the radial direction; and after completing the polishing work of one polishing level, the position of the reciprocating movement is sequentially moved in the radial direction. A method for polishing a ferrule, comprising the steps of: 2. A disc-shaped polishing plate (
5); a sliding base (8) provided to be slidable in the radial direction of one of the polishing plates with respect to the substrate; and a slider (4) provided on the sliding base to reciprocate in the sliding direction. , ferrules (1A, 1B, . . . attached to the slider and extending above approximately the center of the polishing plate)
), and the polishing plate (5) is divided into a plurality of concentric circles in terms of polishing capacity.