CN115070646A

CN115070646A - Clamp and method for testing front light backlight of coaxial laser bare package

Info

Publication number: CN115070646A
Application number: CN202210808755.9A
Authority: CN
Inventors: 周彪; 李志超; 郭萍; 李浩凡
Original assignee: Liaoning Youxun Technology Co ltd
Current assignee: Liaoning Youxun Technology Co ltd
Priority date: 2022-07-11
Filing date: 2022-07-11
Publication date: 2022-09-20
Anticipated expiration: 2042-07-11
Also published as: CN115070646B

Abstract

The invention provides a clamp for testing front light and back light of a coaxial laser bare package and a testing method. The upper end of the tightening table is provided with a cross-shaped deformation notch, and the center of the cross-shaped deformation notch is used for placing a bare coaxial laser to be tested; the bearing table is arranged at the lower end of the compact table, a photosensitive head is accommodated between the compact table and the bearing table, and the photosensitive head can receive light of the laser from the bottom of the compact table; the clamping cap is arranged above the tightening platform, the cross-shaped deformation notch of the tightening platform is deformed by rotating the clamping cap, the bare coaxial laser is finally fixed in the clamp, meanwhile, the power-on position of the bare coaxial laser can be exposed, and the coaxial laser fixed in the clamp can measure two data of front light and backlight only through one-time operation. The laser product of the naked CoaxialtOSA can be fixed in the clamp, the required front light and backlight data can be measured only by one-time operation, and the naked device is prevented from being separated from the clamp in the test process.

Description

Clamp and method for testing front light backlight of coaxial laser bare package

Technical Field

The invention relates to the technical field of optical communication, in particular to a clamp and a test method for optical backlight before bare package test of a coaxial laser.

Background

In the production process of all the Coaxial TOSA products, performance test before capping is required to be carried out, and in the front light backlight test, laser products are required to be placed into a special clamp to be fixed, manually held and matched through an electric plug core. The irretrievable device damage can be caused to the bare mounted device if no special clamp is used. The small components inside the bare mounted device are easy to damage and easily touch the edge of the clamp, so that the device is damaged by short circuit.

When the Coaxial TOSA product is subjected to front light test, the device, the electric insertion core and the additional wire are required to be taken down together for front light test, and then the device is dismounted, so that the device is easy to deviate to cause short circuit breakdown.

In current anchor clamps, do not have the anchor clamps that can test before the naked dress of Coaxial TOSA product and be shaded simultaneously, so lead to Coaxial TOSA test before the light process in a poor light very difficult go on, for the simple swift test procedure before accomplishing the sealing cap, the supporting anchor clamps of urgent need design press from both sides tight fixed, convenient test carries out the productivity and promotes.

Disclosure of Invention

In order to solve the technical problems in the prior art, the invention provides a clamp and a test method for testing front light and back light of a bare Coaxial laser, which can fix a laser product of the bare Coaxial TOSA in the clamp, and can test two kinds of required data of the front light and the back light only by one-time operation, thereby avoiding the defects of short circuit, damage, appearance abrasion and poor quality caused by the fact that a bare device is separated from the clamp in the test process.

In order to achieve the purpose, the invention adopts the following technical scheme:

a clamp for the front light backlight of the bare mounting test of a coaxial laser comprises a clamping cap, a tightening table and a bearing table, wherein a cross-shaped deformation opening is formed in the upper end of the tightening table, and the center of the cross-shaped deformation opening is used for placing the bare mounting coaxial laser to be tested; the bearing table is arranged at the lower end of the compact table, a photosensitive head is accommodated between the compact table and the bearing table, and the photosensitive head can receive light of the laser from the bottom of the compact table; the clamping cap is arranged above the tightening platform, the cross-shaped deformation notch of the tightening platform is deformed by rotating the clamping cap, the bare coaxial laser is finally fixed in the clamp, meanwhile, the power-on position of the bare coaxial laser can be exposed, and the coaxial laser fixed in the clamp can measure two data of front light and backlight only through one-time operation.

Furthermore, the upper part of the compact table is in a shape of a circular truncated cone, two square grooves penetrating through the upper plane are arranged on the upper plane to form a cross-shaped deformation opening, and a tube seat placing groove is formed in the center of the cross-shaped deformation opening and used for placing a naked coaxial laser; the center of the bottom of the tube seat placing groove is provided with a through hole; the lower part of the compact table is a hollow lower skirt, the inside of the lower skirt is used for accommodating a photosensitive head of a laser, and threads are arranged in the lower skirt; the plummer is the platform structure of disc, and the screw in tightening platform through the skirt down is screwed on the plummer.

Furthermore, the upper portion of plummer still be equipped with the upper skirt and enclose, upper skirt periphery has the screw thread, passes through the screw thread with the lower skirt of reducing platform and screws.

Furthermore, the clamping cap is in a round cap shape and comprises a cap cylinder part and a cap peak part, the inner side of the cap cylinder part is provided with an inclined plane for pressing the cross-shaped deformation notch of the upper plane of the tightening table, and the top of the cap cylinder part is provided with a positioning hole for exposing the upper plane of the tightening table and a bare laser; the brim part is internally provided with threads, and the clamping cap is screwed above the tightening platform through the threads of the brim part.

Furthermore, a wire guide hole is arranged below the side of the bearing table and used for placing a transmission line of a photosensitive head of the laser.

Furthermore, the bottom of the bearing table is also provided with a bottom heightening leg.

Further, the testing method of the fixture for testing the front light and the back light of the coaxial laser bare package comprises the following steps:

1) after confirming the orientation of the head of the photosensitive head, putting the head of the photosensitive head on a base of a bearing table, and then leading out the transmission line from the wire hole;

2) correspondingly wrapping the upper skirt on the bearing table and the lower skirt of the tightening table with the good sense optical heads, and then rotating the tightening table until the tightening table is locked;

3) after the clamping cap is matched with the tightening platform through the positioning hole at the top end of the clamping cap, the internal pressure thread is confirmed to be matched with the external pressure thread of the tightening platform, and the tightening is not needed;

4) aligning the bare coaxial laser to a tube seat placing concave platform on a compact platform, and stably placing the bare coaxial laser, wherein the transmission power-up position of the bare coaxial laser is upward;

5) after the naked coaxial laser is placed, the hand rotates the hand twisting edge on the clamping cap clockwise, so that the naked coaxial laser can be fixed in the tube seat placing groove;

6) the power-on equipment is connected to the transmission power-on position behind the naked coaxial laser and then is powered on, so that the light backlight test before the test can be completed at one time without other operations;

the front light of the naked coaxial laser is received by a photosensitive head at the lower end of the naked coaxial laser, and is transmitted and tested through a transmission line, and the backlight of the naked coaxial laser is directly read and tested at a transmission power-up position;

7) and after the test is finished, the power-on equipment is dismounted, the brim part on the clamping cap is rotated anticlockwise, and the naked coaxial laser is taken down.

Compared with the prior art, the invention has the beneficial effects that:

1) the invention relates to a clamp and a test method for optical backlight before a Coaxial laser bare package test, which utilize a clamping groove of a compact table to form a cross-shaped deformation notch, position a bare package laser in a central groove of the bare package laser, deform the cross-shaped deformation notch by rotating a clamping cap above the cross-shaped deformation notch, and finally fix a bare package Coaxial laser (Coaxial TOSA) product in the clamp. The two data of the front light and the backlight can be measured only by one-time operation, and the defects of short circuit, damage, appearance abrasion and poor quality caused by the fact that a bare device is separated from a clamp in the test process are avoided.

2) One part of the top of the clamping cap is a smooth inclined pressure surface without threads, and can be tightly attached to the deformation round table structure at the upper end of the tightening table.

3) The lower side of the bearing table is provided with a wire guide hole which can lead the transmission line of the photosensitive head out of the clamp.

4) The bottom heightening legs are arranged below the bearing table, so that the transmission lines can be prevented from influencing the overall stability of the clamp.

Drawings

FIG. 1 is a finished view of a fixture for a front light backlight for a bare package test of a coaxial laser according to the present invention;

FIG. 2 is an exploded view of a fixture for a coaxial laser bare package pre-test optical backlight according to the present invention;

FIG. 3 is a side view of the finished product of the present invention;

FIG. 4 is a cross-sectional view of the finished article of the present invention;

FIG. 5 is a perspective view of the clamp cap of the present invention;

FIG. 6 is a cross-sectional view of the clamp cap of the present invention;

FIG. 7 is a perspective view of a compact platform of the present invention;

FIG. 8 is a cut away view of a compact table of the present invention;

FIG. 9 is an exploded view of the present invention after installation of a laser;

fig. 10 is a perspective view of the laser according to the present invention after installation.

In the figure: 1-clamping cap 2-tightening table 3-bearing table 4-positioning hole 5-brim part (hand-screwed edge) 6-tube seat placing groove 7-deformation boss 8-deformation opening 9-bottom heightening leg 10-wire guide 11-base 12-upper skirt 13-lower skirt 14-internal pressure thread 15-external pressure thread 16-light sensing head 17-transmission line 18-bare mounting laser 19-transmission power-up part 20-inclined surface (cap cylinder part) 21-square groove 22-through hole.

Detailed Description

The following detailed description of the present invention will be made with reference to the accompanying drawings.

As shown in fig. 1-10, a fixture for a coaxial laser bare mount test front light backlight comprises a clamping cap 1, a compact stage 2 and a bearing stage 3.

The upper portion of the tightening platform 2 is a deformation boss 7 in the shape of a circular truncated cone, the upper plane is provided with two square grooves 21 which penetrate vertically and horizontally to form a cross-shaped deformation opening 8, the tightening platform 2 can be made of elastic steel, and the elasticity of the cross-shaped deformation opening 8 is increased. A tube seat placing groove 6 is arranged at the center of the cross-shaped deformation notch 8 and used for placing a naked laser 18; the bottom center of the tube seat placing groove 6 is provided with a through hole 22, the inner diameter of the through hole 22 is smaller than that of the groove 6, the tube seat placing groove 6 can support the outer edge of the bare-packaged laser 18, and the placed bare-packaged laser 18 cannot fall into the through hole 22. The lower part of the compact table 2 is a hollow lower skirt 13, a light-sensitive head 16 of a laser is accommodated in the lower skirt 13, and the bottom of a bare laser 18 enables the light-sensitive head 16 to sense light through a through hole 22 in the center of the tube seat placing groove 6 (sensing is the front light of the laser, see the subsequent description of the using method); the lower skirt 13 is internally provided with threads; the plummer 3 is the platform structure of disc, and the screw in the platform 2 that contracts through skirt 13 is screwed on plummer 3.

The clamping cap 1 is in a round cap shape and comprises a cap cylinder part and a cap peak part 5, an inclined plane 20 is arranged on the inner side of the cap cylinder part and forms an inclined pressure surface for pressing the cross-shaped deformation opening 8 on the upper plane of the tightening platform 2, the inclination angle of the inclined plane 20 is slightly larger than that of the deformation boss 7 in the round platform shape, the inclined plane 20 is tightly attached to the deformation boss 7 in the round platform shape at the upper end of the tightening platform 2, and the purpose that the tightening platform 2 is tightened by the downward force generated when the clamping cap 1 moves downwards is achieved. The top of the cap cylinder part is provided with a positioning hole 4 for exposing the upper plane of the tightening platform 2 and the bare laser 18, and the opening of the positioning hole 4 at the top of the clamping cap 1 is large, so that the bare laser 18 can be conveniently, rapidly and clearly placed. An internal pressure thread 14 is arranged in the brim part 5, the clamping cap 1 is screwed above the tightening platform 2 through the matching of the internal pressure thread 14 of the brim part 5 and an external pressure thread 15 of the tightening platform 2, and the brim part 5 is a hand-screwed edge, so that an operator can conveniently and quickly rotate and screw the brim part, and the purpose of locking and fixing is achieved.

The upper surface of the bearing table 3 is a platform base 11 for placing a photosensitive head 16, an upper skirt 12 is further arranged on the upper portion of the bearing table, threads are arranged on the periphery of the upper skirt 12 and screwed with the lower skirt 13 of the compact table 2 through the threads, and the space between the lower skirt 13 of the compact table 2 and the upper skirt 12 of the bearing table 3 is used for accommodating the photosensitive head 16 of a laser.

And a wire guide hole 10 is also arranged below the side of the bearing table 3 and is used for placing a transmission line 17 of a photosensitive head 16 of a laser.

The bottom of the bearing table 3 is also provided with a bottom heightening leg 9, so that the transmission line 17 is prevented from influencing the stability of the whole clamp.

The test method of the clamp comprises the following steps:

1) after confirming the head orientation of the photosensitive head 16, putting the head onto the base 11 of the bearing table 3, and then leading out the transmission line 17 from the wire hole 10;

2) correspondingly wrapping the upper skirt 12 on the bearing table 3 and the lower skirt 13 on the tightening table 2 with the good sense optical head 16, and then rotating the tightening table 2 until locking;

3) after the clamping cap 1 is matched with the tightening platform 2 through the positioning hole 4 at the top end of the clamping cap 1, the internal pressure thread 14 is matched with the external pressure thread 15 of the tightening platform 2, and the tightening is not needed;

4) the bare mounted laser 18 is aligned to the tube seat placing concave table 6 on the compact table 2 and placed stably, and the transmission power-on part 19 of the bare mounted laser 18 faces upwards;

5) after the naked laser 18 is placed, the hand rotates the hand screwing edge 5 on the clamping cap 1 clockwise, and then the naked laser 18 can be fixed in the tube seat placing concave table 6;

6) the pre-test optical backlight test can be completed in one time without other operations by connecting the power-up equipment to the transmission power-up part 19 behind the bare-mounted laser 18 and then supplying power.

The front light of the bare mounted laser 18 is received by the photosensitive head 16 at the lower end thereof and transmitted through the transmission line 17 for testing, and the back light of the bare mounted laser 18 is directly read by the transmission power-up 19 for testing.

7) After the test is finished, the bare mounted laser 18 can be removed by rotating the visor portion 5 of the clamping cap 1 counterclockwise after the powered device is removed.

The above embodiments are implemented on the premise of the technical solution of the present invention, and detailed embodiments and specific operation procedures are given, but the scope of the present invention is not limited to the above embodiments. The methods used in the above examples are conventional methods unless otherwise specified.

Claims

1. A clamp for the light backlight before the bare mounting test of a coaxial laser is characterized by comprising a clamping cap, a tightening table and a bearing table, wherein the upper end of the tightening table is provided with a cross-shaped deformation opening, and the center of the cross-shaped deformation opening is used for placing the bare mounted coaxial laser to be tested; the bearing table is arranged at the lower end of the compact table, a photosensitive head is accommodated between the compact table and the bearing table, and the photosensitive head can receive front light of the laser from the bottom of the compact table; the clamping cap is arranged above the tightening platform, the cross-shaped deformation notch of the tightening platform is deformed by rotating the clamping cap, the bare coaxial laser is finally fixed in the clamp, meanwhile, the power-on position of the bare coaxial laser can be exposed, and the coaxial laser fixed in the clamp can measure two data of front light and backlight only through one-time operation.

2. The fixture for the front light and the back light of the bare-package test of the coaxial laser according to claim 1, wherein the upper part of the tightening table is in the shape of a circular truncated cone, two square grooves penetrating through the upper plane of the tightening table form a cross-shaped deformation notch, and a tube seat placing groove is formed in the center of the cross-shaped deformation notch and used for placing the bare-package coaxial laser; the center of the bottom of the tube seat placing groove is provided with a through hole; the lower part of the compact table is a hollow lower skirt, the inside of the lower skirt is used for accommodating a photosensitive head of a laser, and threads are arranged in the lower skirt; the plummer is the platform structure of disc, and the screw in tightening platform through the skirt down is screwed on the plummer.

3. The fixture for the front light backlight before the bare package test of the coaxial laser device as claimed in claim 2, wherein the upper portion of the platform is further provided with an upper skirt, the upper skirt is threaded on the outer circumference and screwed with the lower skirt of the compact platform.

4. The fixture for the front light and the back light of the bare package test of the coaxial laser device as claimed in claim 1, wherein the clamping cap is in the shape of a round cap and comprises a cap cylinder part and a cap peak part, an inclined surface is arranged on the inner side of the cap cylinder part and is used for pressing a cross-shaped deformation notch on the upper plane of the compact table, and a positioning hole is arranged on the top of the cap cylinder part and is used for exposing the upper plane of the compact table and the bare package laser device; the brim part is internally provided with threads, and the clamping cap is screwed above the tightening platform through the threads of the brim part.

5. The fixture for the front light backlight before the bare package test of the coaxial laser as claimed in claim 1, wherein a wire hole is further formed below the side of the bearing platform for placing a transmission line of a photosensitive head of the laser.

6. The fixture for the front light backlight of the coaxial laser bare package test according to claim 1, wherein the bottom of the bearing platform further comprises a bottom heightening leg.

7. The method for testing the jig for the bare mounting test of the front light backlight of the coaxial laser as set forth in any one of claims 1 to 6, comprising the steps of: