JPS5918416Y2 - Optical fiber fusion alignment device - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an axis alignment device for an optical fiber fusion splicing device, and particularly to a device for determining the position of a fiber core prior to the start of fusion splicing.

Description of prior art "Fig. 1" shows an outline of an example of a fusion splicing device.

100 is the entire fiber core, 102 is the fiber, and 104 is the sheath coated thereon.

Reference numeral 10 denotes a block (1), which includes, for example, a sheath holding portion 20 and a fiber holding portion 30.

■ grooves 22 and 32 are provided in each, ■ a sheath 104 is placed in groove 22, ■ a fiber 102 is placed in groove 32,
Press using known means.

The holding means is not shown. At a position opposite to block 10, another block 110 is provided.

This also includes, for example, a sheath holding part 120 and a fiber holding part 130, each having V grooves 122 and 13.
2 will be provided.

The fiber holding parts 130 and 30 are integrated with a member 40 interposed therebetween.

■Put the sheath 104 into the groove 122, and ■Put the fiber 102 into the groove 132 and press.

The holding means is not shown.

This right sheath holding portion 120 can move forward and backward.

In addition, in the V block 110 on the right side, the left side is the front, and in the ■ block 10 on the left side, the right side is the front side (see arrow).

To perform fusion splicing, (1) Insert the fiber core 100 into each groove of the blocks 10 and 110 as described above and press it.

There is no need to particularly accurately determine the position where the fiber core 100 is placed, and it is sufficient that the space between the two fibers 102 is slightly opened.

(2) Move the right sheath holding part 120 forward and bring the fibers 102 together.

(3) Move the electrode 50 to the side of the butting position.

(4) Start fusion.

Purpose of the invention: To realize a device that eliminates the need to move the electrode 50 in the above-mentioned fusion operation.

Example Only the main parts are shown in "Figure 2".

60 is a stopper.

This is a square plate with a guide groove 62 provided therein.

The guide groove 62 is a V-shaped cutout on the upper side of the board, and a slit 6 that goes vertically downward from the lowest part.
3.

Further, the width of the slit 63 is larger than the diameter of the fiber 102 and smaller than the diameter of the fiber sheath 104.

■ Block 1 on the side that does not move forward or backward with this stopper 60
0, and fix it against the front surface of the sheath holding part 20.

At this time, the center of the slit 63 is made to coincide with the center of the groove 22.

Therefore, when hitting the end stopper 60 of the sheath 104,
You can't move forward any further.

Further, since the electrode 50 does not need to be moved, it is fixed at a fixed position.

The configuration of other parts is the same as in FIG. 1.

Method of operation (1) Drop the protruding fiber core 100 from above the stopper 60.

The fiber core 100 then slides down along the guide groove 62 and automatically enters the V groove 22°32.

In particular, if the stopper 60 is made to have a certain thickness as shown in FIG.
Even if it is dropped slightly obliquely to the groove 22, etc., while it falls through the slit 63, it will naturally become parallel to the ■ groove 22, etc., and will fit within the ■ groove 22.32.

Then, move the fiber core 100 forward a little and sheath 1
04 against the stopper 60.

Then, it is pressed by a pressing means.

The distance from the stopper 60 to the center of the electrode 50 is set equal to the length of the fiber core 100 (for example, 15 mm).

Then, the tip of the fiber 102 is located on the center line of the electrode 50.

(2) There is also a fiber core 100 in the V block 110 on the right side.
is set, and the sheath holding portion 120 is moved forward to butt the fibers 102 together.

(3) Since the abutting position of the fibers 102 and the center line of the electrode 50 coincide, fusion is started immediately.

Effects of the invention (1) Since the stopper 60 has an upper open guide groove 62, the stopper 60 not only serves to position the fiber core 100, but also has two functions: to facilitate insertion into the V groove. It has two roles.

(2) Since the electrode 50 is fixed, the distance between the stopper 60 and the electrode 50 is determined.

Therefore, if the length of the fiber core 100 is set to L as described above, the tip of the fiber 102 will naturally be connected to the electrode 50.
Comes right next to.

Furthermore, since the fiber core wire 100 on the other side is movable, the fibers 102 can be brought into contact with each other right next to the electrode 50.

[Brief explanation of the drawing]

FIG. 1 is a schematic explanatory diagram of a conventional optical fiber fusion splicer, and FIG. 2 is a perspective view of the main parts of an embodiment of this invention.

Claims (1)

[Claims for Utility Model Registration] Insert and hold the fiber cores into the V grooves of two opposing V blocks, move the fiber core on one side, butt the fibers against each other, and use the butt part as an electrode. In a fusion splicing device for optical fibers that uses arc discharge to fusion splice the fiber cores, the block on the side where the fiber cores are not moved has a square plate with a V-shaped cutout on its upper side, and a A stopper is provided with a slit that goes straight down directly below, and a guide groove whose width is larger than the diameter of the fiber and smaller than the diameter of the fiber sheath, and the center of the slit is aligned with the center of the groove. An optical fiber fusion axis alignment device characterized in that: the discharge electrode is mounted at a fixed position;