A cured assembly fixture for an optical fiber array

By designing clamping and limiting mechanisms, and combining them with lifting mechanisms and ultraviolet lamps, the problem of fiber damage to optical fibers by fiber array curing assembly fixtures was solved, achieving precise positioning and stable curing of fiber arrays.

CN224328272UActive Publication Date: 2026-06-05HUBEI NUOTONG ANNAN TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUBEI NUOTONG ANNAN TECHNOLOGY CO LTD
Filing Date
2025-09-04
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Existing fiber optic array curing and assembly fixtures are prone to damage when fixing optical fibers, affecting the normal use of the optical fibers.

Method used

A curing assembly fixture for fiber optic arrays was designed. The fixture employs a clamping mechanism and a limiting mechanism to ensure precise positioning of the fiber optics within the V-groove. Furthermore, the fixture utilizes a lifting mechanism and an ultraviolet lamp to achieve stable clamping of the fiber optics and effective curing of the UV adhesive.

Benefits of technology

This avoids positional deviations and damage to the optical fibers caused by movement or shrinkage of the adhesive layer during the fixing process, ensuring the accuracy and stability of the optical fiber array.

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Abstract

The utility model relates to the technical field of clamp, disclose a kind of solidification assembly fixture of optical fiber array, including operation platform, and optical fiber array mechanism is arranged on operation platform, and optical fiber array mechanism includes base, and several V-shaped grooves are opened in base, and optical fiber is placed on V-shaped groove, and the clamping mechanism for fixing the position of optical fiber is equipped with on the both sides of optical fiber, and lifting mechanism is equipped with directly above clamping mechanism;Limiting mechanism for fixing optical fiber array mechanism is also arranged on operation platform, and the limiting block of fixed base is included in limiting mechanism, and rubber pad is fixed in the inside of limiting block.The upper support of the utility model can form symmetrical clamping with lower support, and optical fiber is accurately clamped from top to bottom direction, avoid the intensity deviation of artificial operation, and the inside of upper support and lower support is equipped with flexible buffer layer, both can buffer the pressure when clamping by self elasticity, avoid the fracture of glass material due to rigid extrusion of optical fiber, and upper support and lower support can also prevent hard friction from occurring on the surface of optical fiber, and scratch optical fiber.
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Description

Technical Field

[0001] This utility model relates to the field of fixture technology, and in particular to a curing assembly fixture for fiber optic arrays. Background Technology

[0002] An optical fiber is a fibrous optical device made of glass or plastic. Its core function is to efficiently transmit optical signals through the principle of total internal reflection. An optical fiber array is an ordered optical component formed by fixing multiple optical fibers on a substrate material according to a specific arrangement. Its core function is to achieve efficient optical signal coupling or interconnection between optical fibers and other optical devices.

[0003] Fiber optic arrays consist of optical fibers, a substrate, and an encapsulation structure. The core diameter of the optical fibers varies; the substrate is typically made of high-precision materials such as ceramic, silicon, or glass, and its surface is pre-fabricated with V-grooves to precisely fix the fiber positions; the encapsulation structure uses adhesives such as UV glue and epoxy resin to fix the fibers within the V-grooves, and some arrays also include a metal shell or cover to enhance mechanical stability and anti-interference capabilities. Fiber optic arrays are widely used in optical communication and sensing fields, characterized by high density, high precision, and low loss.

[0004] Chinese utility model patent with authorization announcement number CN221446328U discloses a curing assembly fixture for an optical fiber array. This application can fix the optical fiber by pushing the pressure block into the interior of the V-groove. However, the pressure block is prone to damaging the optical fiber during the pressing process, affecting the normal use of the optical fiber. Utility Model Content

[0005] The purpose of this invention is to provide a curing assembly fixture for fiber optic arrays, which can accurately position the optical fiber within a V-groove without damaging the optical fiber.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a curing assembly fixture for an optical fiber array, including an operating table, an optical fiber array mechanism is provided on the operating table, the optical fiber array mechanism includes a base, a plurality of V-shaped grooves are opened on the base, optical fibers are placed on the V-shaped grooves, clamping mechanisms for fixing the position of the optical fibers are provided on the upper and lower sides of the optical fibers, and a lifting mechanism is provided directly above the clamping mechanisms.

[0007] By adopting the above technical solution, the clamping mechanism can ensure that the optical fiber remains in a stable position during the fixing process, avoid deviations in the optical fiber arrangement caused by factors such as movement, and ensure the accuracy of the optical fiber array.

[0008] A further feature of this invention is that a limiting mechanism for constraining the fiber optic array mechanism is provided on the operating table. The limiting mechanism includes a limiting block for constraining the base, and a rubber pad is fixed inside the limiting block.

[0009] By adopting the above technical solution, a limiting mechanism is set to ensure the stable positioning of the base and avoid the impact on the assembly accuracy caused by the movement of the base during the assembly process of the optical fiber; a rubber pad is fixed on the inner side of the limiting block to reduce the situation of excessive local pressure and avoid damage to the base.

[0010] A further feature of this invention is that a horizontal groove is provided in the middle of the operating table, and a clamping mechanism is provided in the middle of the operating table. The clamping mechanism includes a lower support component and an upper support component located above the lower support component. The lower support component includes several support rods fixedly installed in the horizontal groove.

[0011] A further feature of this invention is that a through groove is provided at the position corresponding to the horizontal groove on the operating table, and a lower support is provided at the junction of the through groove and the V-shaped groove, which is fixedly connected to the upper end of the support rod.

[0012] By adopting the above technical solution, the horizontal groove in the middle of the operating table is equivalent to providing a positioning groove for the support rod of the lower support component. A lower support is fixedly installed on the support rod. When setting the lower support, ensure that the lower support accurately corresponds to the V-shaped groove of the base and the optical fiber placed in the V-shaped groove. The lower support component stably supports the optical fiber from below.

[0013] A further feature of this invention is that: a support is fixedly installed on both sides of the operating table, and a lifting mechanism is fixedly installed on the support. The lifting mechanism includes a cylinder, and the lower support assembly includes a force-bearing crossbar fixedly connected to the lower end of the telescopic shaft of the cylinder. A support rod is fixedly connected to the lower part of the force-bearing crossbar, and an upper support located directly above the lower support is fixedly connected to the lower end of the support rod. The upper support and the lower support are arranged opposite to each other.

[0014] By adopting the above technical solution, the upper support and the lower support can form a symmetrical clamp, accurately clamping the optical fiber from the top and bottom, avoiding the force deviation of manual operation.

[0015] A further feature of this invention is that several ultraviolet lamps are fixedly installed on the load-bearing crossbar.

[0016] By adopting the above technical solution, the ultraviolet lamp can irradiate and cure the ultraviolet adhesive at the contact point between the optical fiber and the V-groove, ensuring the positional accuracy of the optical fiber and the stability of the array after curing.

[0017] The beneficial effects of this utility model are:

[0018] 1. The upper support of the clamping mechanism of this application can form a symmetrical clamp with the lower support, which can accurately clamp the optical fiber from the top and bottom, avoiding the force deviation of manual operation. In addition, the upper and lower supports are provided with a flexible buffer layer, which can not only buffer the pressure during clamping through its own elasticity, preventing the optical fiber from breaking due to rigid compression, but also prevent the upper and lower supports from hard friction with the surface of the optical fiber, thus preventing scratching the optical fiber.

[0019] 2. The ultraviolet lamp is fixed on the load-bearing crossbar and can irradiate and cure the ultraviolet adhesive at the contact point between the optical fiber and the V-groove. This can prevent the optical fiber from shifting due to external force or adhesive shrinkage during the curing process, and ensure the positional accuracy of the optical fiber and the stability of the array after curing. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of a fiber optic array curing assembly fixture according to the present invention.

[0022] Figure 2 This is a schematic diagram of the lower support component of a fiber optic array curing assembly fixture according to the present invention.

[0023] Figure 3 This is a top view of the fiber array and lower support assembly of a fiber array curing assembly fixture according to the present invention.

[0024] In the diagram, 1. Operating table; 2. Fiber optic array mechanism; 201. Base; 202. V-groove; 203. Fiber optic cable; 3. Limiting mechanism; 301. Limiting block; 4. Horizontal groove; 5. Clamping mechanism; 51. Lower support assembly; 511. Support rod; 512. Lower support; 52. Upper support assembly; 521. Force-bearing crossbar; 522. Support rod; 523. Upper support; 6. Through groove; 7. Bracket; 8. Lifting mechanism; 801. Cylinder; 9. Ultraviolet lamp. Detailed Implementation

[0025] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0026] This utility model embodiment specifically provides a curing assembly fixture for a fiber optic array, including an operating table 1, on which a fiber optic array mechanism 2 is provided. The fiber optic array mechanism 2 includes a base 201, on which a plurality of V-shaped grooves 202 are formed, on which optical fibers 203 are placed. Clamping mechanisms 5 for fixing the position of the optical fibers 203 are provided on the upper and lower sides of the optical fibers 203, and a lifting mechanism 8 is provided directly above the clamping mechanism 5.

[0027] It is worth noting that the fiber array mechanism 2 is existing technology. The fiber array mechanism 2 consists of fiber 203, substrate 201 and encapsulation structure. The core diameter of fiber 203 varies. The substrate 201 is mostly made of high-precision materials such as ceramic, silicon wafer or glass. The surface of the substrate 201 is pre-fabricated with V-grooves 202 that match the fiber arrangement for precise fixation of the fiber position. The encapsulation structure fixes the fiber 203 in the V-grooves 202 with UV adhesive. Some may also be equipped with a metal shell or cover to enhance mechanical stability and anti-interference ability.

[0028] Specifically, the clamping mechanism 5 can ensure that the optical fiber 203 remains in a stable position during the fixing process, avoid deviations in the arrangement of the optical fiber 203 due to factors such as movement, and ensure the accuracy of the optical fiber 203 array.

[0029] Furthermore, a limiting mechanism 3 for constraining the fiber array mechanism 2 is also fixedly installed on the operating table 1. The limiting mechanism 3 includes a limiting block 301 that constrains the base 201, and a rubber pad is fixedly provided on the inner side of the limiting block 301.

[0030] Specifically, a limiting mechanism 3 is set to ensure the stable positioning of the base and prevent the fiber optic cable 203 from being affected by the movement of the base 201 during the assembly process.

[0031] The substrate 201 of the fiber array mechanism 2 is mostly made of high-precision brittle materials such as ceramics and silicon wafers. If the limiting block 301 is in direct rigid contact with the substrate 201, the surface of the substrate 201 is easily scratched or chipped due to pressure concentration or slight misalignment, and even the dimensional accuracy of the V-groove is damaged. A rubber pad is set on the inner side of the limiting block 301 to avoid damage to the substrate 201.

[0032] Furthermore, a transverse groove 4 is provided in the middle of the operating table 1, and a clamping mechanism 5 is provided in the middle of the operating table 1. The clamping mechanism 5 includes a lower support component 51 and an upper support component 52 located above the lower support component 51. The lower support component 51 includes a number of support rods 511 fixedly installed in the transverse groove 4.

[0033] Furthermore, a through groove 6 is provided at the position corresponding to the horizontal groove 4 on the operating table 1 on the base 201, and a lower support 512 is provided at the junction of the through groove 6 and the V-shaped groove 202, which is fixedly connected to the upper end of the support rod 511.

[0034] Specifically, the horizontal groove 4 in the middle of the operating table 1 provides a positioning groove for the support rod 511 of the lower support component 51. The support rod 511 is fixedly provided with a lower support 512. When setting the lower support 512, ensure that the lower support 512 accurately corresponds to the V-shaped groove 202 of the base 201 and the optical fiber 203 placed in the V-shaped groove 202. The lower support component 51 stably supports the optical fiber 203 from below.

[0035] Furthermore, brackets 7 are fixedly installed on both sides of the operating table 1, and lifting mechanisms 8 are fixedly installed on the brackets 7. The lifting mechanism 8 includes a cylinder 801. The lower support assembly 51 includes a force-bearing crossbar 521 fixedly connected to the lower end of the telescopic shaft of the cylinder 801. A support rod 522 is fixedly connected to the lower part of the force-bearing crossbar 521. An upper support 523 located directly above the lower support 512 is fixedly connected to the lower end of the support rod 522. The upper support 523 is arranged opposite to the lower support 512.

[0036] Both the upper support 523 and the lower support 512 are concave arc surfaces with an arc-shaped structure. The inner arc diameter of the upper support 523 and the lower support 512 is the same as the diameter of the optical fiber 203, so as to achieve a surface structure with the outer circular surface of the optical fiber 203. This can disperse the clamping force and avoid excessive local pressure that could cause deformation or damage to the optical fiber 203.

[0037] Specifically, the lifting mechanism 8 driven by cylinder 801 provides stable power, and drives the force-bearing crossbar 521 to rise and fall precisely through the telescopic shaft, so that the upper support 523 and the lower support 512 can form a symmetrical clamping, and precisely clamp the optical fiber 203 from the top and bottom, avoiding the force deviation of manual operation.

[0038] Meanwhile, the upper support 523 and the lower support 512 are provided with a flexible buffer layer on their inner sides. This layer can not only buffer the pressure during clamping through its own elasticity, thus preventing the glass material of the optical fiber 203 from breaking due to rigid compression, but also prevent the upper support 523 and the lower support 512 from having hard friction with the surface of the optical fiber 203 and scratching the optical fiber 203.

[0039] Furthermore, several ultraviolet lamps 9 are fixedly installed on the load-bearing crossbar 521.

[0040] Specifically, the fiber array mechanism 2 typically uses UV adhesive to fix the fiber 203 in the V-groove 202 of the substrate 201. The UV adhesive is characterized by requiring UV irradiation of a specific wavelength to cure quickly.

[0041] In this application, the ultraviolet lamp 9 is a prior art irradiation. The ultraviolet lamp 9 is fixed on the force-bearing crossbar 521 and moves synchronously with the lifting mechanism 8. When the cylinder 801 drives the upper support 523 and the lower support 512 to clamp the optical fiber 203, the ultraviolet lamp 9 can irradiate and cure the ultraviolet adhesive at the contact part between the optical fiber 203 and the V-groove 202. This can prevent the optical fiber 203 from shifting due to external force or adhesive shrinkage during the curing process, and ensure the positional accuracy and array stability of the optical fiber 203 after curing.

[0042] The above describes the basic principles, main features, and advantages of this utility model. The standard parts used in this utility model can all be purchased from the market, and the irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art, which will not be described in detail here.

[0043] The control method of this utility model is to control the device by manually starting and stopping the switch. The wiring diagram of the power element and the supply of power are common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and wiring layout will not be explained in detail.

[0044] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0045] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A curing assembly fixture for an optical fiber array, comprising an operating table (1), wherein an optical fiber array mechanism (2) is disposed on the operating table (1), the optical fiber array mechanism (2) comprising a substrate (201), wherein a plurality of V-grooves (202) are formed on the substrate (201), and optical fibers (203) are placed on the V-grooves (202), characterized in that: The optical fiber (203) is provided with clamping mechanisms (5) on the upper and lower sides for fixing the position of the optical fiber (203), and a lifting mechanism (8) is provided directly above the clamping mechanism (5).

2. The fiber optic array curing assembly fixture according to claim 1, characterized in that: The operating table (1) is also provided with a limiting mechanism (3) for constraining the fiber array mechanism (2). The limiting mechanism (3) includes a limiting block (301) for constraining the base (201). A rubber pad is fixedly provided on the inner side of the limiting block (301).

3. The fiber optic array curing assembly fixture according to claim 2, characterized in that: The operating table (1) has a horizontal groove (4) in the middle position. The clamping mechanism (5) is located in the middle position of the operating table (1). The clamping mechanism (5) includes a lower support component (51) and an upper support component (52) located above the lower support component (51). The lower support component (51) includes several support rods (511) fixedly installed in the horizontal groove (4).

4. The fiber optic array curing assembly fixture according to claim 3, characterized in that: A through groove (6) is provided at the position corresponding to the horizontal groove (4) on the operating table (1). A lower support (512) is provided at the junction of the through groove (6) and the V-shaped groove (202) and is fixedly connected to the upper end of the support rod (511).

5. The fiber optic array curing assembly fixture according to claim 4, characterized in that: The operating table (1) is also fixedly provided with brackets (7) on both sides. A lifting mechanism (8) is fixedly provided on the brackets (7). The lifting mechanism (8) includes a cylinder (801). The lower support assembly (51) includes a force-bearing crossbar (521) fixedly connected to the lower end of the telescopic shaft of the cylinder (801). A support rod (522) is fixedly connected to the lower part of the force-bearing crossbar (521). An upper support (523) located directly above the lower support (512) is fixedly connected to the lower support (523). The upper support (523) is arranged opposite to the lower support (512).

6. The fiber optic array curing assembly fixture according to claim 5, characterized in that: Several ultraviolet lamps (9) are also fixedly installed on the load-bearing crossbar (521).