Auxiliary tool for assembling optical fiber collimator

Abstract

The utility model relates to an auxiliary tool for assembling an optical fiber collimator, which is applied to the technical field of optical communication and comprises an optical platform, the optical platform is provided with an ultraviolet curing part, the ultraviolet curing part comprises a light curing support and an ultraviolet curing lamp, the ultraviolet curing lamp is fixed on the light curing support, and the ultraviolet curing lamp is fixed on the light curing support. The ultraviolet curing lamp is arranged towards the optical platform; an ultraviolet curing lamp is arranged on the optical platform, a collimator placing part is further arranged on the optical platform, the collimator placing part comprises a supporting base and a collimator placing table, and the collimator placing table is fixed to the supporting base and located below the ultraviolet curing lamp. Compared with the mode that a worker holds an ultraviolet curing lamp to conduct curing operation, the state of the ultraviolet curing lamp fixed to the light curing support is more stable, the light curing effect is improved to a certain degree, the worker can conduct other operations synchronously in the process, and the working efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of optical communication technology, and in particular to an auxiliary tooling for assembling an optical fiber collimator. Background Art

[0002] Fiber collimator is an important component in optical passive devices. It can convert the divergent light at the output end of the optical fiber into collimated light (parallel light) through the internal lens, and can also couple the parallel light in the free space into the optical fiber. It is widely used in optical communication systems and is the basis for making many other optical passive devices, such as polarizers, isolators, splitters, filters, optical switches and wavelength division multiplexers. In the internal structure of most optical passive devices, it is usually necessary to bond the assembled fiber collimator to a ceramic substrate, with the ceramic substrate as the base, to complete the installation of the fiber collimator, and realize the transmission and regulation of optical signals by precisely controlling the waveguide structure.

[0003] For example, in the process flow of the beam splitter, the first thing to do is to assemble the collimator; specifically, apply 353ND glue at 2 / 3 of the lens and then screw it into the glass sleeve, apply UV glue at 1mm where the lens is exposed outside the glass sleeve and pre-cure it under ultraviolet light for 20 seconds, check the glue solidification, then insert the pigtail into the other end of the glass sleeve, adjust the position and pull out the pigtail, apply 353ND glue at 1 / 3 of the distance from the wedge angle surface, push it into the glass sleeve, wipe off the excess glue that overflows, adjust the position to minimize the insertion loss, and finally apply a circle of UV glue between the pigtail and the glass sleeve, and cure it under ultraviolet light for 20 seconds to complete the assembly of the fiber optic collimator, then apply UV glue on the assembled fiber optic collimator and bond it to the ceramic substrate, and also cure the bonding point between the fiber optic collimator and the ceramic substrate under ultraviolet light to complete the installation of the fiber optic collimator inside the beam splitter.

[0004] But usually, UV curing operations need to rely on workers holding UV lamps. This method of holding UV lamps is relatively unstable, and workers cannot perform other operations simultaneously during the process, which leads to low work efficiency. Utility Model Content

[0005] In order to improve the defects in the above-mentioned prior art, the present application provides an auxiliary tooling for assembling a fiber collimator.

[0006] The present application provides an auxiliary tooling for assembling a fiber collimator, which adopts the following technical solution:

[0007] An auxiliary tooling for assembling an optical fiber collimator comprises an optical platform, on which an ultraviolet curing unit is arranged, the ultraviolet curing unit comprises a light curing support and an ultraviolet curing lamp, the ultraviolet curing lamp is fixed on the light curing support, and the ultraviolet curing lamp is arranged toward the optical platform; the optical platform is also provided with a collimator placement unit, the collimator placement unit comprises a support support and a collimator placement table, the collimator placement table is fixed on the support support, and the collimator placement table is located below the ultraviolet curing lamp.

[0008] By adopting the above technical solution, compared with the method in which workers hold the ultraviolet curing lamp for curing operations, the ultraviolet curing lamp fixed on the light curing support is more stable, which improves the light curing effect to a certain extent, and workers can also perform other operations simultaneously during this process, thereby improving work efficiency.

[0009] Optionally, the ultraviolet curing unit further comprises a guide rail, the guide rail is arranged toward the collimator placement table, a movable seat is arranged at the bottom of the light curing support, and the movable seat is slidably arranged on the guide rail.

[0010] By adopting the above technical solution, with the help of sliding cooperation between the movable seat and the guide rail, the ultraviolet curing part can be moved back and forth in the direction toward the collimator placement table. Before starting the curing operation, the ultraviolet curing part is pushed toward the collimator placement part so that the ultraviolet curing lamp is located above the collimator placement table. After the curing operation is completed, the ultraviolet curing part is pushed away from the collimator placement part so that the ultraviolet curing lamp is moved away from above the collimator placement table, so as to facilitate direct removal of the ceramic substrate.

[0011] Optionally, a limit plate is provided on the guide rail, and the limit plate is at one end of the guide rail close to the collimator placement table. When the movable seat abuts against the limit plate, the collimator placement table is located directly below the ultraviolet curing lamp.

[0012] By adopting the above technical solution, when the movable seat moves on the guide rail, it relies on the contact and abutment with the limit plate, so that the ultraviolet curing lamp can be accurately positioned just above the collimator placement table, thereby improving the curing effect.

[0013] Optionally, a positioning component is provided between the guide rail and the movable seat, and the movable seat abuts against the limit plate after passing through the positioning component, and the positioning component can limit the return movement of the movable seat.

[0014] By adopting the above technical solution, after the moving seat passes through the positioning component, the moving seat and the limit plate just abut against each other, thereby ensuring that the ultraviolet curing lamp is positioned directly above the collimator placement table, and at this time the moving seat cannot move back by itself, which can ensure that the ultraviolet curing lamp is always directly above the collimator placement table during the curing process, and is relatively stable during curing.

[0015] Optionally, the positioning component includes a hemispherical protrusion, a positioning steel ball and a spring, the hemispherical protrusion is arranged on the inner wall of the movable seat, and the hemispherical protrusion is in adaptive contact with the side wall of the guide rail, a mounting groove is provided on the side wall of the guide rail, the spring and the positioning steel ball are arranged in the mounting groove, one end of the spring is connected to the bottom of the mounting groove, and the other end of the spring is connected to the positioning steel ball, and the spring pushes the positioning steel ball out of the mounting groove;

[0016] When the hemispherical protrusion passes through the positioning steel ball, the hemispherical protrusion squeezes the positioning steel ball into the installation groove. After the hemispherical protrusion passes through the positioning steel ball, the spring pushes the positioning steel ball out of the installation groove. At this time, the hemispherical protrusion and the positioning steel ball are against each other, and at this time, the moving seat and the limit plate are against each other, and the positioning steel ball can limit the moving seat from moving back.

[0017] By adopting the above technical solution, the cooperation of the hemispherical protrusion, the positioning steel ball and the spring is utilized to make the movable seat and the limit plate just counteract each other, thereby ensuring that the ultraviolet curing lamp is positioned directly above the collimator placement table, and at this time, the positioning steel ball restricts the movable seat from moving back by itself, thereby ensuring that the ultraviolet curing lamp is always directly above the collimator placement table during the curing process, and is relatively stable during curing.

[0018] Optionally, a limiting groove is provided on the groove wall of the installation groove, the limiting groove is arranged along the moving direction of the positioning steel ball, a limiting block is integrally formed on the positioning steel ball, and the limiting block is slidably arranged in the limiting groove.

[0019] By adopting the above technical solution, the positioning steel ball will not completely extend out of the installation groove under the thrust of the spring, thus ensuring the effect of the positioning steel ball in limiting the return movement of the movable seat.

[0020] Optionally, a circle of baffles is arranged on the collimator placement table, and a space is provided inside the baffles for the ceramic substrate to fit in, and the height of the baffles is lower than the height of the ceramic substrate.

[0021] By adopting the above technical solution, the ceramic substrate is placed in the space formed by the baffle, and the baffle can limit the ceramic substrate to prevent the ceramic substrate from being displaced on the collimator placement table, thereby ensuring the effects of subsequent bonding operations and ultraviolet lamp curing operations. In addition, the height of the baffle is lower than the height of the ceramic substrate, which makes it easy for workers to take out the ceramic substrate that has completed bonding and curing.

[0022] Optionally, a side of an upper edge of the baffle close to the ceramic substrate is configured as a chamfered structure.

[0023] By adopting the above technical solution, the ceramic substrate can be placed more smoothly into the space inside the baffle by relying on the inclined side wall formed on the baffle by the chamfer structure.

[0024] In summary, this application includes the following beneficial technical effects:

[0025] 1. Compared with the way workers hold UV curing lamps for curing operations, the UV curing lamps fixed on the light curing support are more stable, which improves the light curing effect to a certain extent. In addition, workers can also perform other operations simultaneously during this process, which improves work efficiency.

[0026] 2. By using the cooperation of the hemispherical protrusion, the positioning steel ball and the spring, the movable seat and the limit plate are just against each other, so as to ensure that the ultraviolet curing lamp is positioned directly above the collimator placement table, and at this time, the positioning steel ball restricts the movable seat from moving back by itself, so that the ultraviolet curing lamp can always be directly above the collimator placement table during the curing process, which is relatively stable during curing. In addition, the positioning steel ball will not be completely extended from the installation slot under the thrust of the spring, thereby ensuring the effect of the positioning steel ball restricting the moving seat from moving back. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure of the auxiliary tooling for assembling the optical fiber collimator in the embodiment of the present application.

[0028] Figure 2 It is a schematic diagram of the partial structure of the collimator placement table in the embodiment of the present application.

[0029] Figure 3 This is a cross-sectional view of the structure of the positioning component between the moving seat and the guide rail in the embodiment of the present application.

[0030] Figure numerals: 1. optical platform; 2. ultraviolet curing part; 21. light curing support; 22. ultraviolet curing lamp; 23. guide rail; 231. mounting groove; 232. limit groove; 3. collimator placement part; 31. support support; 32. collimator placement table; 4. moving seat; 5. limit plate; 6. positioning component; 61. hemispherical protrusion; 62. positioning steel ball; 63. spring; 7. limit block; 8. baffle; 81. chamfer structure. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-3 This application is described in further detail.

[0032] The present application embodiment discloses an auxiliary tooling for assembling a fiber collimator, referring to Figure 1 The auxiliary tooling for assembling the optical fiber collimator includes an optical platform 1, on which are arranged an ultraviolet curing part 2 and a collimator placing part 3. The ultraviolet curing part 2 is used to perform curing operations on the optical fiber collimator and the ceramic substrate placed on the collimator placing part 3. Compared with the method in which workers hold an ultraviolet curing lamp 22 for curing operations, the light curing effect is improved to a certain extent, and the workers can also perform other operations simultaneously during the process, thereby improving work efficiency.

[0033] Reference Figure 1 and Figure 2 Specifically, the collimator placement part 3 includes a support bracket 31 and a collimator placement table 32. The support bracket 31 is fixedly mounted on the optical platform 1, and the collimator placement table 32 is fixedly mounted on the support bracket 31. The bearing surface of the collimator placement table 32 is a plane structure, and the table surface is slightly larger than the ceramic substrate. A circle of baffles 8 are arranged around the edges of the four sides of the collimator placement table 32. A space for the ceramic substrate to be adapted and placed is formed in the baffle 8, which can improve the stability of the ceramic substrate on the collimator placement table 32. The side of the upper edge of the baffle 8 close to the ceramic substrate is set to a chamfered structure 81. In this way, relying on the inclined side wall formed on the baffle 8 by the chamfered structure 81, the ceramic substrate can be more smoothly placed in the space in the baffle 8, and the height of the baffle 8 is lower than the height of the ceramic substrate, which is convenient for workers to take out the ceramic substrate that has completed adhesion and curing.

[0034] Reference Figure 1 Specifically, the ultraviolet curing part 2 includes a light curing support 21, an ultraviolet curing lamp 22 and a guide rail 23. The guide rail 23 is fixedly mounted on the optical platform 1 and is arranged toward the collimator placement table 32. The ultraviolet curing lamp 22 is fixedly mounted on the light curing support 21 and is arranged toward the optical platform 1. A movable seat 4 is arranged at the bottom of the light curing support 21, and the movable seat 4 is slidably mounted on the guide rail 23. When the optical fiber collimator and the ceramic substrate are light-cured, the worker pulls the light curing support 21 to move toward the collimator placement table 32 so that the ultraviolet curing lamp 22 is located directly above the collimator placement table 32. At this time, the ultraviolet curing lamp 22 is turned on to perform light curing operations on the optical fiber collimator and the ceramic substrate.

[0035] Reference Figure 1 and Figure 3Then, in order to accurately move the ultraviolet curing lamp 22 to the top of the collimator placement table 32 during the process of moving the light-curing support 21, it is necessary to use the limit plate 5 and the positioning component 6 in combination. Specifically, the limit plate 5 is arranged on the guide rail 23, and the limit plate 5 is located at one end of the guide rail 23 close to the collimator placement table 32, and the positioning component 6 is arranged between the guide rail 23 and the moving seat 4. The moving seat 4 will abut against the limit plate 5 after passing through the positioning component 6. At this time, the ultraviolet curing lamp 22 is just above the collimator placement table 32, and the positioning component 6 can limit the moving seat 4 from moving back. In this way, it can be ensured that the ultraviolet curing lamp 22 is always above the collimator placement table 32 during the light-curing process, which is relatively stable during curing and has a good curing effect.

[0036] The positioning component 6 includes a hemispherical protrusion 61, a positioning steel ball 62 and a spring 63. The hemispherical protrusion 61 is arranged on the inner wall of the movable seat 4. The hemispherical protrusion 61 is adapted to contact with the side wall of the guide rail 23. The side wall of the guide rail 23 is provided with a mounting groove 231. The positioning steel ball 62 and the spring 63 are arranged in the mounting groove 231. One end of the spring 63 is connected to the bottom of the mounting groove 231, and the other end of the spring 63 is connected to the positioning steel ball 62. The spring 63 can move the positioning steel ball 62 to the mounting groove 231. The mounting groove 231 is pushed outward, and a limiting groove 232 is provided on the groove wall of the mounting groove 231. The limiting groove 232 is arranged along the moving direction of the positioning steel ball 62. In addition, a limiting block 7 is arranged on the positioning steel ball 62. The limiting block 7 and the positioning steel ball 62 are an integrated structure. The limiting block 7 is slidably arranged in the limiting groove 232. Thanks to the cooperation between the above-mentioned limiting block 7 and the limiting groove 232, the positioning steel ball 62 cannot be completely separated from the mounting groove 231, thereby ensuring the positioning effect of the positioning steel ball 62. In this way, when the hemispherical protrusion 61 passes through the positioning steel ball 62, the hemispherical protrusion 61 squeezes the positioning steel ball 62 into the installation groove 231. After the hemispherical protrusion 61 passes through the positioning steel ball 62, the spring 63 pushes the positioning steel ball 62 out of the installation groove 231. At this time, the hemispherical protrusion 61 and the positioning steel ball 62 are against each other, and the movable seat 4 and the limit plate 5 are against each other. The positioning steel ball 62 can limit the moving seat 4 from moving back. At this time, the ultraviolet curing lamp 22 is just above the collimator placement table 32. When the light curing work is completed, the worker can push the light curing support 21 back with a little force, which is convenient for taking out the light-cured optical fiber collimator and ceramic substrate.

[0037] The implementation principle of an auxiliary tooling for assembling a fiber optic collimator according to an embodiment of the present application is as follows: a worker first places a ceramic substrate on a collimator placement table 32, then applies UV glue to the fiber optic collimator and places it on the ceramic substrate, then uses tweezers to clamp the pigtail and adhere it to the glue application point of the fiber optic collimator, pulls the light-curing support 21 through the positioning steel ball 62, so that the movable seat 4 abuts against the limit plate 5, and the hemispherical protrusion 61 abuts against the positioning steel ball 62. At this time, the ultraviolet curing lamp 22 is precisely located directly above the collimator placement table 32, turns on the ultraviolet curing lamp 22 to perform light curing on the adhesion between the fiber optic collimator and the ceramic substrate, and continues for 20 seconds. After the curing is completed, pushes away the light-curing support 21, and takes out the fiber optic collimator and the ceramic substrate that have completed the adhesion and curing from the collimator placement table 32, in preparation for the subsequent assembly operation of the spectrometer.

[0038] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An auxiliary tool for assembling a fiber collimator, characterized in that: The invention comprises an optical platform (1), wherein an ultraviolet curing unit (2) is arranged on the optical platform (1), wherein the ultraviolet curing unit (2) comprises a light curing support (21) and an ultraviolet curing lamp (22), wherein the ultraviolet curing lamp (22) is fixed on the light curing support (21), and the ultraviolet curing lamp (22) is arranged toward the optical platform (1); and a collimator placement unit (3) is also arranged on the optical platform (1), wherein the collimator placement unit (3) comprises a support support (31) and a collimator placement platform (32), wherein the collimator placement platform (32) is fixed on the support support (31), and the collimator placement platform (32) is located below the ultraviolet curing lamp (22).

2. The auxiliary tooling for assembling an optical fiber collimator according to claim 1, characterized in that: The ultraviolet curing part (2) further comprises a guide rail (23), wherein the guide rail (23) is arranged towards the collimator placement platform (32), and a movable seat (4) is arranged at the bottom of the light curing support (21), wherein the movable seat (4) is slidably arranged on the guide rail (23).

3. The auxiliary tooling for assembling an optical fiber collimator according to claim 2, characterized in that: A limit plate (5) is provided on the guide rail (23), and the limit plate (5) is located at one end of the guide rail (23) close to the collimator placement platform (32). When the movable seat (4) abuts against the limit plate (5), the collimator placement platform (32) is located directly below the ultraviolet curing lamp (22).

4. The auxiliary tooling for assembling an optical fiber collimator according to claim 3, characterized in that: A positioning component (6) is provided between the guide rail (23) and the movable seat (4); the movable seat (4) abuts against the limit plate (5) after passing through the positioning component (6); and the positioning component (6) can limit the return movement of the movable seat (4).

5. The auxiliary tooling for assembling an optical fiber collimator according to claim 4, characterized in that: The positioning component (6) comprises a hemispherical protrusion (61), a positioning steel ball (62) and a spring (63); the hemispherical protrusion (61) is arranged on the inner wall of the movable seat (4), and the hemispherical protrusion (61) is in adaptive contact with the side wall of the guide rail (23); a mounting groove (231) is provided on the side wall of the guide rail (23); the spring (63) and the positioning steel ball (62) are arranged in the mounting groove (231); one end of the spring (63) is connected to the bottom of the mounting groove (231), and the other end of the spring (63) is connected to the positioning steel ball (62); the spring (63) pushes the positioning steel ball (62) out of the mounting groove (231); When the hemispherical protrusion (61) passes through the positioning steel ball (62), the hemispherical protrusion (61) squeezes the positioning steel ball (62) into the installation groove (231). After the hemispherical protrusion (61) passes through the positioning steel ball (62), the spring (63) pushes the positioning steel ball (62) out of the installation groove (231). At this time, the hemispherical protrusion (61) and the positioning steel ball (62) are against each other, and at this time, the movable seat (4) and the limiting plate (5) are against each other, and the positioning steel ball (62) can limit the moving seat (4) from moving back.

6. The auxiliary tooling for assembling an optical fiber collimator according to claim 5, characterized in that: A limiting groove (232) is provided on the groove wall of the installation groove (231), and the limiting groove (232) is arranged along the moving direction of the positioning steel ball (62). A limiting block (7) is integrally formed on the positioning steel ball (62), and the limiting block (7) is slidably arranged in the limiting groove (232).

7. The auxiliary tooling for assembling an optical fiber collimator according to claim 1, characterized in that: A circle of baffles (8) is arranged on the collimator placement platform (32), and a space for a ceramic substrate to be accommodated in the baffles (8), and the height of the baffles (8) is lower than the height of the ceramic substrate.

8. The auxiliary tooling for assembling an optical fiber collimator according to claim 7, characterized in that: The upper edge of the baffle (8) is arranged at a side close to the ceramic substrate to form a chamfered structure (81).

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