CN115407145A

CN115407145A - Multifunctional APC interface test tool

Info

Publication number: CN115407145A
Application number: CN202211010647.3A
Authority: CN
Inventors: 王苗庆; 陶佳栋; 林巍巍
Original assignee: Shaoxing Zktel Equipment Co ltd
Current assignee: Shaoxing Zktel Equipment Co ltd
Priority date: 2022-08-23
Filing date: 2022-08-23
Publication date: 2022-11-29

Abstract

The invention relates to the field of testing of optical devices, in particular to a multifunctional APC interface testing tool, which comprises a base, wherein a limiting interface is arranged on the base, one end of the limiting interface is an optical fiber jumper wire insertion end, the other end of the limiting interface is an adapter insertion end, and the limiting interface sequentially comprises a clamping groove, a plane milling limiting groove, a plugging area and an optical fiber jumper wire guiding limiting groove from the adapter insertion end to the optical fiber jumper wire insertion end; has the advantages that: the adapter is fixed through the clamping groove, the milling plane limiting groove is matched with the adapter milling plane to prevent the optical device from rotating, the optical fiber jumper wire is guided to the limiting groove to ensure the uniqueness of the insertion direction of the optical fiber jumper wire, meanwhile, the limitation of the insertion depth is carried out, the phenomenon that the adapter of the APC type is abnormally attached to the end face of the jumper wire or the end face is damaged is avoided, and the photoelectric performance of the optical device is ensured; set up the base, make the frock have good bearing and anti deformability, stability is stronger, is convenient for fix at the testboard, avoids staff's hand-held type to operate unstably and leads to the operation deformation influence performance.

Description

Multifunctional APC interface test tool

Technical Field

The invention relates to the field of testing of optical devices, in particular to a multifunctional APC interface testing tool.

Background

The optical device adapter ceramic ferrule has different end faces, the optical device adapter ceramic ferrule is commonly provided with a UPC (Universal plug connector) and an APC (automatic Power control), and because the APC has an inclined angle, the ferrules with the two different end faces cannot be matched with each other for use. When testing the photoelectric performance of the APC end face device with the inclined plane angle, the APC inclined plane jumper with the same angle needs to be matched for testing. The test requires that the APC end face of the jumper wire insertion core and the APC end face of the optical device insertion core are parallel and attached, the test mode has high requirement on the alignment of the optical device and the optical fiber jumper wire APC face, and at present, when the photoelectric performance of the optical device of the APC interface is tested in batch, a manual visual inspection type matching test is usually adopted.

As shown in fig. 1, the left side is an optical device, the optical device is provided with an adapter, the right side is an optical fiber jumper, and the optical fiber jumper are plugged in a handheld pressing mode during testing. As shown in fig. 2 and 3, during testing, visual inspection control is required to ensure that the APC high point surface of the optical fiber jumper is perpendicular to the milling plane of the adapter, and it is required that the APC inclined surface of the adapter and the APC inclined surface of the optical fiber jumper are parallel and attached to each other in the testing direction (i.e., the direction is unique, and insertion in other directions may cause collision damage to the ferrule, which affects the testing performance).

The above test procedure has the following drawbacks:

1) The adapter and the optical fiber jumper are not limited in the testing direction, the testing direction is controlled only in a visual inspection mode, whether the APC end faces are parallel or not is uncertain, the testing direction cannot be guaranteed, and the optical performance is influenced;

2) The handheld pressing mode has no limit control, and whether the depth of a jumper inserted into the adapter is correct or not (namely whether the APC end surfaces are jointed or not is uncertain) cannot be confirmed, so that the joint has a risk of increasing the optical path loss due to a gap or damaging the end surfaces due to the rotation of any end surface, and the performance test is abnormal;

3) The handheld pressing mode cannot guarantee whether the jumper insertion core can be accurately inserted into the port of the adapter, and the risk of end face damage caused by collision and friction of the jumper insertion core and the port of the adapter exists;

4) The hand-held test is not convenient to take and place, the test product is single, and the operation efficiency is low.

Disclosure of Invention

The invention aims to provide a test tool which can ensure that an APC surface is horizontally attached, ensure that the insertion depth of a jumper wire meets the standard requirement, avoid the jumper wire inserting core from colliding with the port of an adapter, is suitable for different types of optical fiber jumper wires, is convenient for test assembly and disassembly and improves the test efficiency.

In order to achieve the purpose, the technical scheme of the invention is as follows:

the utility model provides a multi-functional APC interface test fixture, includes the base, is equipped with spacing interface on the base, the one end of spacing interface is that optic fibre jumper wire inserts the end, and the other end inserts the end for the adapter, spacing interface inserts the end by the adapter and includes draw-in groove, mill plane spacing groove, connect and insert district and optic fibre jumper wire direction spacing groove in proper order to optic fibre jumper wire.

Furthermore, the limit interface is detachably connected with the base.

Further, be equipped with the restorer on the base, the restorer is located the below of spacing interface, the restorer includes mount pad and strip that resets, and the mount pad is fixed in the base and establishes a vertical arrangement's mounting groove in, and the upper portion and the lower part of mounting groove are equipped with the guiding hole that runs through the mount pad, and the guiding hole is all worn out at both ends about just in the mounting groove to the strip that resets setting, milling plane spacing groove with insert and be equipped with the dismouting hole just right with the guiding hole between the district, the upper end of strip that resets is equipped with the thimble that can pass in and out dismouting hole, the lower extreme is equipped with the handle, the part that the strip that resets is located the mounting groove is equipped with the spring holder, and is equipped with reset spring between spring holder and mounting groove upper end or the mounting groove lower extreme.

Furthermore, the mounting seat is detachably connected with the base.

Furthermore, the optical fiber jumper wire guiding and limiting groove comprises an optical fiber jumper wire guiding opening and a U-shaped limiting groove arranged on the bottom surface of the optical fiber jumper wire guiding opening.

Furthermore, the optical fiber jumper guiding and limiting groove comprises an optical fiber jumper guiding opening and a convex limiting groove arranged on the bottom surface of the optical fiber jumper guiding opening.

Furthermore, the base comprises a modular assembly strip, a plurality of first connecting parts are arranged on the modular assembly strip, and second connecting parts matched with the first connecting parts are arranged on the base.

The invention has the advantages that:

1. the optical device adapter is fixed through the clamping groove, the milling plane limiting groove is matched with the adapter milling plane to prevent the optical device from rotating, the optical fiber jumper wire is guided to the limiting groove to ensure the uniqueness of the insertion direction of the optical fiber jumper wire, and meanwhile, the limitation of the insertion depth is carried out, so that the abnormal attachment or the end surface damage of the adapter of the APC type and the jumper wire end surface is avoided, and the photoelectric performance of the optical device is ensured;

2. the limit interfaces are detachably and modularly installed, and can be detached and replaced according to the type of the optical fiber patch cord, so that the coverage area of the types of test products is increased, and the practicability of the clamp is improved;

3. the base is arranged, so that the tool has good bearing and deformation resistance, is high in stability and convenient to fix on a test board, and the influence of operation deformation on the performance caused by unstable handheld operation of staff is avoided;

4. due to the arrangement of the restorer, the system has a convenient unloading function after the test is finished, the end face damage caused by unstable manual insertion and extraction is prevented, the loading and unloading speed is increased, the production test efficiency is improved, and the labor cost is saved;

5. the base passes through the modularization equipment strip fixed, can assemble a plurality of same functional module and integrate and increase test channel, realizes the multichannel test, improves production efficiency.

Drawings

FIG. 1 is a diagram illustrating a test state of an optical device and an optical fiber jumper in the prior art;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a schematic diagram of a milled plane location of an adapter on a prior art optical device;

FIG. 4 is a schematic three-dimensional structure of the test fixture in example 1;

FIG. 5 is a schematic bottom view of FIG. 4;

FIG. 6 is a side view of FIG. 4;

FIG. 7 is a schematic three-dimensional configuration diagram of a stopper interface in embodiment 1;

FIG. 8 is a schematic view of the assembly of the optical device and the stopper interface in example 1;

FIG. 9 is a schematic three-dimensional configuration of an SC fiber patch cord;

FIG. 10 is a schematic three-dimensional configuration of a restorer of embodiment 1;

fig. 11 is an assembly schematic diagram of an adapter and an SC optical fiber patch cord in a test fixture in embodiment 1;

FIG. 12 is a schematic view of FIG. 11 from another perspective;

FIG. 13 is a schematic view of a multi-channel test system according to embodiment 1;

fig. 14 is a schematic three-dimensional configuration diagram of a stopper interface in embodiment 2;

FIG. 15 is a schematic view from another perspective of FIG. 14;

FIG. 16 is a schematic diagram of a three-dimensional configuration of an LC optical fiber patch cord;

FIG. 17 is a schematic view of the internal construction of a LC fiber jumper head end;

fig. 18 is an assembly diagram of an LC optical fiber jumper and a limit interface in embodiment 2;

fig. 19 is a schematic diagram of a multi-channel test system in embodiment 2.

Description of the reference symbols

1-adapter, 11-milling plane, 2-optical fiber jumper, 21-SC optical fiber jumper, 210-guiding block, 22-LC optical fiber jumper, 220-pressing piece, 221-stop block, 3-limiting interface, 31-clamping groove, 32-milling plane limiting groove, 33-plugging area, 34-optical fiber jumper guide port, 35-U-shaped limiting groove, 36-convex limiting groove, 37-dismounting hole, 4-base, 41-second connecting part, 5-restorer, 51-mounting seat, 52-restoring strip, 53-mounting groove, 54-spring seat, 55-restoring spring, 56-guide hole and 6-modular assembling strip.

Detailed Description

The present invention is described in further detail below with reference to examples.

Example 1

The invention provides a multifunctional APC interface test tool, which comprises a base 4, wherein a limiting interface 3 and a restorer 5 are arranged on the base 4, and the restorer 5 is positioned below the limiting interface 3, as shown in FIGS. 4 to 6. As shown in fig. 7 and 8, one end of the limiting interface 3 is an optical fiber jumper insertion end, and the other end is an adapter insertion end, and the limiting interface 3 sequentially includes a clamping groove 31, a plane-milling limiting groove 32, a plugging area 33, and an optical fiber jumper guiding limiting groove from the adapter insertion end to the optical fiber jumper insertion end. The clamping groove 31 is used for fixing the adapter 1 and avoiding the adapter 1 from moving in the testing direction, the milling plane limiting groove 32 is matched with the milling plane 11 of the adapter 1 to prevent the optical device from rotating, and the plugging area 33 is a bonding area of the adapter plug core and the optical fiber jumper plug core.

The spacing interface 3 of the present embodiment is suitable for an SC optical fiber patch cord, and as shown in fig. 9, a guide block 210 is disposed at the bottom of the existing SC optical fiber patch cord (when the guide block 210 is subsequently installed, it is used for connecting with a device housing). As shown in fig. 12, the optical fiber jumper guide limiting groove of the present embodiment includes an optical fiber jumper guide opening 34 and a U-shaped limiting groove 35 disposed on the bottom surface of the optical fiber jumper guide opening 34. The optical fiber jumper wire guide opening 34 is matched with the SC optical fiber jumper wire in size, plays a role in guiding when the SC optical fiber jumper wire is inserted, avoids movement except for the test direction, and the U-shaped limiting groove 35 is matched with the shape of the guide block 210, and plays a role in limiting the insertion depth of the SC optical fiber jumper wire by being matched with the guide block 210.

As shown in fig. 10, the repositor 5 comprises a mounting seat 51 and a repositioning strip 52, the mounting seat 51 is fixed on the base 4 and is internally provided with a vertically arranged mounting groove 53, the upper part and the lower part of the mounting groove 53 are provided with guide holes 56 penetrating through the mounting seat 51, the repositioning strip 52 is arranged in the mounting groove 53, and the upper end and the lower end of the repositioning strip both penetrate through the guide holes 56. As shown in fig. 5 or 7, a mounting and dismounting hole 37 is provided between the milling plane limiting groove 32 and the inserting region 33, and is opposite to the guide hole 56. The upper end of the reset strip 52 is provided with a thimble which can go in and out of the dismounting hole 37, the lower end is provided with a handle, the left side and the right side of the reset strip 52 positioned in the mounting groove 53 are provided with spring seats 54, and a reset spring 55 is arranged between the spring seats 54 and the upper end of the mounting groove 53.

The working process of the tool is as follows:

1. horizontally placing the test tool on a test table;

2. according to the requirement of the test direction, the adapter 1 of the optical device is fixed through the clamping groove 31 and the plane milling limiting groove 32; meanwhile, the SC optical fiber jumper is inserted along the optical fiber jumper guide opening 34 until the U-shaped limiting groove 35 abuts against the guide block 210, and at the moment, the APC inclined surface of the adapter 1 is just attached to the APC inclined surface of the optical fiber ferrule;

3. the optical device is connected with the test line and scans the two-dimensional code to carry out power-on test;

2.4 After the test is finished, the test wire and the optical fiber jumper wire are pulled out, the reset strip 52 is pushed upwards, the ejector pin of the reset strip 52 upwards penetrates through the dismounting hole 37 and jacks up the optical device, the product can be dismounted at the moment, then the reset strip 52 is loosened, and the reset strip 52 returns under the action of the reset spring 55.

Preferably, as shown in fig. 7, the limit interface 3 and the base 4 are detachably connected through bolts and screw holes. Since there are multiple types of optical fiber patch cords (SC patch cords in this embodiment, LC optical fiber patch cords in embodiment 2), the structures of the limiting interfaces 3 may be different correspondingly. Through setting spacing interface 3 to detachable construction, can dismantle the change according to the type of optic fibre wire jumper, increase test product kind and cover the face, improve anchor clamps practicality. Furthermore, the mounting seat 51 of the restorer 5 is detachably connected with the base 4, so that the parts can be conveniently maintained and replaced.

As shown in fig. 13, the test fixture further includes a modular assembly strip 6, the modular assembly strip 6 is provided with a plurality of first connecting portions, and the base 4 is provided with a second connecting portion 41 engaged with the first connecting portions. The base 4 is fixed through the modularization equipment strip 6, can assemble a plurality of same functional module and integrate and increase the test channel, realizes the multichannel test, improves production efficiency. In this embodiment, the first connecting portion and the second connecting portion 41 may be implemented in the form of bolts and screw holes.

Example 2

The principle of this embodiment is substantially the same as that of embodiment 1, except that the limit interface 3 of this embodiment is suitable for LC optical fiber jumpers. As shown in fig. 16, the conventional LC optical fiber jumper head is provided with a pressing member 220, stoppers 221 are provided on both sides of the pressing member 220, and as shown in fig. 17, the ferrule inside the LC optical fiber jumper head is not integrated with the housing, but is provided with a buffer spring, that is, the ferrule of the LC optical fiber jumper can elastically expand and contract with respect to the housing. Regarding the structure of the LC optical fiber jumper, the spacing interface 3 of the present embodiment is shown in fig. 14 and 15, and the difference of the spacing interface mainly lies in the guiding and spacing groove of the optical fiber jumper. The optical fiber jumper guiding and limiting groove comprises an optical fiber jumper guiding opening 34 and a convex limiting groove 36 arranged on the bottom surface of the optical fiber jumper guiding opening 34. The outer dimension of the optical fiber jumper wire guiding opening 34 is matched with that of the LC optical fiber jumper wire, the LC optical fiber jumper wire is guided when being inserted, the LC optical fiber jumper wire is prevented from moving except in the testing direction, and the convex limiting groove 36 can be matched with the stop block 221 of the pressing piece 220 to realize limiting.

During the use, install fixed optical device earlier, later insert LC optic fibre wire jumper along optic fibre wire jumper guide port 34, until the APC terminal surface that makes optic fibre wire jumper and the APC terminal surface laminating of adapter 1, optic fibre wire jumper continues to push inwards this moment, compress to unable the promotion until buffer spring atress, explain that the depth of insertion has reached standard requirement this moment, then loosen the optic fibre wire jumper, buffer spring resets, optic fibre wire jumper head shell is outwards kick-backed, it is spacing until by protruding type spacing groove 36. As shown in fig. 18, the small opening of the convex limiting groove 36 can provide an abdicating space for the entrance and exit of the main body of the pressing member 220, and the stop block 221 of the pressing member 220 is matched with the large opening of the convex limiting groove 36 to realize limiting. When the LC optical fiber jumper needs to be pulled out, the pressing piece 220 can be pressed, so that the stop block 221 is dislocated with the convex limiting groove 36, and the limiting effect of the convex limiting groove 36 is cancelled.

As shown in fig. 19, the test fixture of the present embodiment may also implement multi-channel testing by modularly assembling strips.

The above-mentioned embodiments are merely illustrative of the inventive concept and are not intended to limit the scope of the invention, which is defined by the claims and the insubstantial modifications of the inventive concept can be made without departing from the scope of the invention.

Claims

1. The utility model provides a multi-functional APC interface test fixture which characterized in that: the optical fiber jumper wire inserting device comprises a base, wherein a limiting interface is arranged on the base, one end of the limiting interface is an optical fiber jumper wire inserting end, the other end of the limiting interface is an adapter inserting end, and the limiting interface sequentially comprises a clamping groove, a plane milling limiting groove, a plugging area and an optical fiber jumper wire guiding limiting groove from the adapter inserting end to the optical fiber jumper wire inserting end.

2. The multifunctional APC interface test tool according to claim 1, characterized in that: the limiting interface is detachably connected with the base.

3. The multifunctional APC interface testing tool according to claim 1, characterized in that: be equipped with the restorer on the base, the restorer is located the below of spacing interface, the restorer includes mount pad and strip that resets, and the mount pad is fixed in the base and establishes a vertical layout's mounting groove, and the upper portion and the lower part of mounting groove are equipped with the guiding hole that runs through the mount pad, and the guiding hole is all worn out at both ends about and in the mounting groove to the strip setting that resets, milling plane spacing groove with insert be equipped with between the district with the guiding hole just right dismouting hole, the upper end of strip that resets is equipped with the thimble that can pass in and out dismouting hole, the lower extreme is equipped with the handle, the part that the strip that resets is located the mounting groove is equipped with the spring holder, and is equipped with reset spring between spring holder and mounting groove upper end or mounting groove lower extreme.

4. The multifunctional APC interface testing tool according to claim 3, characterized in that: the mounting seat is detachably connected with the base.

5. The multifunctional APC interface testing tool according to claim 1, characterized in that: the optical fiber jumper wire guiding limiting groove comprises an optical fiber jumper wire guiding opening and a U-shaped limiting groove arranged on the bottom surface of the optical fiber jumper wire guiding opening.

6. The multifunctional APC interface testing tool according to claim 1, characterized in that: the optical fiber jumper guiding and limiting groove comprises an optical fiber jumper guiding opening and a convex limiting groove arranged on the bottom surface of the optical fiber jumper guiding opening.

7. The multifunctional APC interface test tool according to claim 1, characterized in that: the base is provided with a plurality of first connecting parts, and the base is provided with a second connecting part matched with the first connecting parts.