Optical device coupling test fixture

Abstract

The utility model relates to the technical field of packaging test of optical module devices. More specifically, the utility model relates to an optical device coupling test clamp comprising a pedestal; the PCB fixing mechanism is detachably arranged on the base; the power-on board fixing mechanism is detachably arranged on the base, and the distance between the power-on board fixing mechanism and the PCB fixing mechanism is adjustable; and the MT insertion core fixing mechanism is detachably arranged on the base, and the distance between the MT insertion core fixing mechanism and the PCB fixing mechanism is adjustable. The utility model provides an optical device coupling test fixture which is high in universality, quick to replace and stable in test performance, and aims to solve the problems of low efficiency, easy product damage, poor data consistency and the like caused by insufficient fixture universality of existing test equipment.

Description

TECHNICAL FIELD

[0001] The utility model relates to optical module device packaging test technical field, more specifically, the utility model relates to a kind of optical device coupling test fixture. BACKGROUND

[0002] Current data center height optical module manufacturing demand grows gradually, in optical module manufacturing and testing field, traditional test fixture is usually designed for single product model, there are following defects:

[0003] 1. Poor compatibility: different core number, size or interface optical module needs to replace special fixture, leading to test table utilization rate is low and cost is high.

[0004] 2. Low dismounting efficiency: traditional fixture adopts bolt fixing or complex buckle structure, replacement time-consuming, difficult to meet the needs of quick switching of automated production line.

[0005] 3. High risk of damage: PCB board fixed lack of clearance design, back component is easily damaged due to extrusion or friction;MT ferrule is plugged, angle deviation or uneven force is easy to cause end face scratch or inconsistent plug force;Contact depth of power-on plate is uncontrollable, easy to cause poor contact or damage the measured product.

[0006] 4. Low data reliability: test method difference caused by manual operation (such as plugging force, angle deviation) will introduce error, affect test data consistency.

[0007] Prior art discloses some fixed optical fiber test fixture, but it does not solve the problem of quick dismounting and multi-model compatibility, and lacks protection design for key components. Therefore, a coupling test fixture with high universality, quick replacement and stable test performance is needed. UTILITY MODEL CONTENT

[0008] The utility model aims at the problems of low efficiency, product damage and poor data consistency caused by insufficient universality of existing test equipment, and designs a kind of optical device coupling test fixture with high universality, quick replacement and stable test performance.

[0009] In order to realize these purposes and other advantages according to the utility model, a kind of optical device coupling test fixture is provided, comprising:

[0010] Base;

[0011] PCB board fixing mechanism, which is detachably arranged on the base;

[0012] Power-on plate fixing mechanism, which is detachably arranged on the base, and the distance between the power-on plate fixing mechanism and the PCB board fixing mechanism is adjustable;

[0013] The MT ferrule fixing mechanism is detachably arranged on the base, and the distance between the MT ferrule fixing mechanism and the PCB board fixing mechanism is adjustable.

[0014] Further, in the optical device coupling test fixture, the base is provided with a first linear guide rail, and the power-on board fixing mechanism is connected with a sliding block of the first linear guide rail.

[0015] Further, in the optical device coupling test fixture, the PCB board fixing mechanism comprises:

[0016] The mounting seat is detachably arranged on the base, and the mounting seat is provided with a first positioning groove corresponding to the PCB board at the upper end;

[0017] The elastic clamping assembly is arranged on the mounting seat to clamp the PCB board placed in the first positioning groove.

[0018] Further, in the optical device coupling test fixture, the bottom wall of the first positioning groove is provided with a cooling fin.

[0019] Further, in the optical device coupling test fixture, the elastic clamping assembly comprises:

[0020] The clamping piece is provided with a notch corresponding thereto at the upper end of the mounting seat, and the notch is in communication with the first positioning groove;

[0021] The first push rod is provided with a first counterbore in communication with the notch at the horizontal end of the mounting seat, one end of the first push rod penetrates through the first counterbore and is connected with the clamping piece, and the other end of the first push rod is provided with a first push block;

[0022] The first spring is sleeved on the first push rod, and the two ends of the first spring are respectively in contact with the first push block and the stepped surface of the first counterbore.

[0023] Further, in the optical device coupling test fixture, the MT ferrule fixing mechanism comprises:

[0024] The fixing seat is detachably arranged on the mounting seat, and the fixing seat is provided with a second positioning groove corresponding to the main body of the MT ferrule at the upper end, and the second positioning groove is open at both ends;

[0025] The moving seat is arranged on one side of the mounting seat and is detachably connected with the mounting seat through the connecting assembly, the second positioning groove is open on the side close to the moving seat, and one end of the main body of the MT ferrule placed in the first positioning groove penetrates out of the second positioning groove and is in contact with the moving seat.

[0026] Further, in the optical device coupling test fixture, the MT ferrule fixing mechanism further comprises:

[0027] A limiting piece is arranged above the second positioning groove and detachably connected with the fixing seat, and a pressing piece is arranged at the lower end of the limiting piece.

[0028] Further, in the optical device coupling test fixture, the connecting assembly comprises:

[0029] A second push rod is horizontally provided with a second counterbore, one end of the second push rod penetrates through the second counterbore, and the other end of the second push rod is connected with a second push block;

[0030] A second spring is sleeved on the second push rod, and the two ends of the second spring are respectively in abutment with the second push block and the stepped surface of the second counterbore.

[0031] A magnetic piece is arranged at one end of the second push rod.

[0032] A magnet is arranged on the fixing seat.

[0033] Further, in the optical device coupling test fixture, a wire limiting piece for limiting the optical fiber of the MT ferrule is arranged at the upper end of the moving seat.

[0034] Further, in the optical device coupling test fixture, a second linear guide rail is arranged on the base, and the moving seat is connected with the sliding block of the second linear guide rail.

[0035] The optical device coupling test fixture has the following beneficial effects:

[0036] 1. The optical device coupling test fixture can replace PCB board fixing mechanisms and MT ferrule fixing mechanisms of different specifications according to different components, and can fix and power on components of various structures and sizes, and various fiber cores such as MT8 / MT12 / MT16 optical modules, thereby saving equipment investment cost.

[0037] 2. When the optical device coupling test fixture fixes the PCB board, the optical device coupling test fixture is designed to avoid empty space, so that the damage rate of the component can be greatly reduced, the spring constant pressure can greatly reduce the damage rate of the optical fiber end face, the pressure connection distance can be adjusted according to different product sizes, and the component damage can be avoided.

[0038] 3. In the optical device coupling test fixture, the PCB board and the MT ferrule are convenient to disassemble and assemble, the replacement time can be shortened to less than 10 seconds, and the optical device coupling test efficiency is improved.

[0039] 4. In the optical device coupling test fixture, the pressure borne by the PCB board and the MT ferrule is constant, human error is eliminated, the test data consistency is good, and the standard deviation is optimized from the traditional ±1dB to less than ±0.5dB.

[0040] Other advantages, objects, and features of the present application will become apparent to those skilled in the art from the following description, it being understood that the following description is by way of example only, with some changes being obvious to one skilled in the art. BRIEF DESCRIPTION OF DRAWINGS

[0041] Figure 1 A structure schematic view of the optical device coupling test fixture according to the present application;

[0042] Figure 2 A structure schematic view of the optical device coupling test fixture according to the present application;

[0043] Figure 3 A structure schematic view of the PCB board fixing mechanism according to the present application;

[0044] Figure 4 A structure schematic view of the elastic clamping assembly according to the present application;

[0045] Figure 5 A structure schematic view of the MT ferrule fixing mechanism according to the present application;

[0046] Figure 6 A connection schematic view of the fixing seat and the MT ferrule according to the present application;

[0047] Figure 7 A structure schematic view of the fixing seat according to the present application;

[0048] Figure 8 A structure schematic view of the moving seat according to the present application;

[0049] Figure 9 A structure schematic view of the connection assembly according to the present application.

[0050] Wherein, the reference signs are represented as:

[0051] Base 1; PCB board fixing mechanism 2; mounting seat 21; first positioning groove 22; heat dissipation fin 23; clamping piece 24; first push rod 25; first spring 26; power-on plate fixing mechanism 3; MT ferrule fixing mechanism 4; fixing seat 41; second positioning groove 42; moving seat 43; limiting piece 44; pressure covering piece 45; second push rod 46; second spring 47; magnetic piece 48; magnet 49; wire piece 410; abutting piece 411; first linear guide rail 5; second linear guide rail 6; component 7; MT ferrule 8; MT male head 81; MT female head 82. DETAILED DESCRIPTION

[0052] The present application will be further described in detail below with reference to the embodiments, so that those skilled in the art can implement the present application according to the description.

[0053] It should be noted that the experimental methods in the following embodiments are conventional methods, and the reagents and materials are commercially available unless otherwise specified; in the description of the utility model, the terms "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model.

[0054] As shown in Figures 1-2 The utility model discloses an optical device coupling test fixture, comprising:

[0055] Base 1;

[0056] PCB board fixing mechanism 2 is detachably arranged on base 1;

[0057] Power-on plate fixing mechanism 3 is detachably arranged on base 1, and the spacing of power-on plate fixing mechanism 3 and PCB board fixing mechanism 2 is adjustable;

[0058] MT plug core fixing mechanism 4 is detachably arranged on base 1, and the spacing of MT plug core fixing mechanism 4 and PCB board fixing mechanism 2 is adjustable.

[0059] In the embodiment, the shapes and sizes of different power-on plate assemblies are different, and the power-on plate fixing mechanism 3 only needs to fix the power-on plate assembly, and the specific structure is determined according to the actual situation of the power-on plate assembly, which is a technical problem that can be easily solved by the prior art, and will not be expanded here. PCB board fixing mechanism 2 and MT plug core fixing mechanism 4 are detachably mounted on base 1, and multiple groups of different specifications can be set according to actual needs, and different specifications of PCB board fixing mechanism 2 and MT plug core fixing mechanism 4 are used according to different actual detection components 7. When using the optical device coupling test fixture, adjust the positions of power-on plate fixing mechanism 3 and MT plug core fixing mechanism 4 on base 1 according to actual needs to meet the needs of different components 7. The PCB board of the component 7 is fixed on the base 1, and then the MT plug core 8 is fixed on the MT plug core fixing mechanism 4, which completes the installation of the component 7 and the MT plug core 8 on the optical device coupling test fixture, and then the subsequent power-on and test operation can be performed. After testing, press the quick release buckle to release the PCB board and the optical fiber, replace the suitable PCB board fixing mechanism 2 and MT plug core fixing mechanism 4 to test the next model component 7.

[0060] Preferably, as another embodiment of the utility model, the base 1 is equipped with a first linear guide rail 5, and the power-on plate fixing mechanism 3 is connected with the slider of the first linear guide rail 5.

[0061] In this embodiment, the first linear guide rail 5 can adopt an existing linear guide rail, and a threaded hole is generally arranged on the side of the slider of the linear guide rail, a tightening nut is arranged in the threaded hole, and the slider and the guide rail are fixed when the tightening nut is tightened; when the tightening nut is loosened, the slider can slide relative to the guide rail. The power-on plate fixing mechanism 3 is connected with the slider of the linear guide rail, the tightening nut of the slider of the linear guide rail is loosened, the power-on plate fixing mechanism 3 is pushed to move, and the distance between the power-on plate assembly and the PCB plate fixing mechanism 2 is adjusted.

[0062] Preferably, as another embodiment of the utility model, the PCB plate fixing mechanism 2 comprises:

[0063] The mounting seat 21 is detachably arranged on the base 1, and the upper end of the mounting seat 21 is equipped with a first positioning groove 22 corresponding to the PCB plate; the first positioning groove 22 adopts a stepped groove structure, avoids the mechanical interference during installation, and avoids the mechanical interference during installation.

[0064] The elastic clamping assembly is arranged on the mounting seat 21 to clamp the PCB plate placed in the first positioning groove 22.

[0065] In this embodiment, as shown in the figure, Figure 3 The upper end of the mounting seat 21 is equipped with a first positioning groove 22 corresponding to the PCB plate, the PCB plate is embedded in the first positioning groove 22, and then the PCB plate is clamped by the elastic clamping assembly to be more stably fixed in the first positioning groove 22. Specifically, as shown in the figure, Figures 3-4 The elastic clamping assembly comprises:

[0066] The clamping piece 24, the upper end of the mounting seat 21 is equipped with a notch corresponding thereto, and the notch is communicated with the first positioning groove 22;

[0067] The first push rod 25, the mounting seat 21 is horizontally equipped with a first counterbore communicated with the notch, one end of the first push rod 25 penetrates through the first counterbore and is connected with the clamping piece 24, and the other end is equipped with a first push block;

[0068] The first spring 26 is sleeved on the first push rod 25, and the two ends thereof are respectively in abutment with the first push block and the stepped surface of the first counterbore.

[0069] Without external force, the first spring 26 is in compression state, which applies force to the first push block and the base 1 respectively, since the base 1 is fixed in position, at this time the first push rod 25 will move outward until the clamping piece 24 is attached to the base 1, at this time the clamping piece 24 is subjected to the elastic pre-tightening force of the first spring 26, and applies force to the PCB board in the first positioning groove 22, and the clamping piece 24 and the inner wall of the first positioning groove 22 form a clamping position to clamp the PCB board. When the clamping position needs to release the force on the PCB board, the first push block is pushed inward to compress the first spring 26, and the clamping piece 24 is driven away from the gap on the upper end of the mounting seat 21.

[0070] Preferably, as another embodiment of the utility model, the bottom wall of the first positioning groove 22 is provided with a cooling fin 23.

[0071] In this embodiment, the cooling fin 23 is provided to increase the heat dissipation of the PCB board during testing.

[0072] Preferably, as another embodiment of the utility model, as shown in Figures 5-8 The MT plug core fixing mechanism 4 comprises:

[0073] The fixing seat 41 is detachably arranged on the mounting seat 21, and the upper end of the fixing seat 41 is provided with a second positioning groove 42 corresponding to the main body of the MT plug core 8, and the two ends of the second positioning groove 42 are open.

[0074] The moving seat 43 is arranged on one side of the mounting seat 21 and is detachably connected with the mounting seat 21 through a connecting assembly, the second positioning groove 42 is open on the side close to the moving seat 43, and the main body of the MT plug core 8 placed in the first positioning groove 22 penetrates out of the second positioning groove 42 and abuts against the moving seat 43.

[0075] In this embodiment, the MT male head 81 and the MT female head 82 are inserted to form the main body of the MT plug core 8, the main body of the MT plug core 8 is embedded in the second positioning groove 42, the two side walls of the second positioning groove 42 are provided with grooves corresponding to the metal shell of the MT male head 81, and a limiting space corresponding to the metal shell of the MT male head 81 is formed between the two grooves, so that the metal shell of the MT male head 81 is fixed through the limiting space, at this time the metal shell of the MT female head 82 is located outside the second positioning groove 42, the moving seat 43 is connected with the mounting seat 21 through the connecting assembly, the moving seat 43 abuts against the metal shell of the MT female head 82 to clamp it, and the main body of the MT plug core 8 can be fixed in the second positioning groove 42. Specifically, as shown in Figure 5 Two abutting pieces 411 can be arranged on the upper end of the fixing seat 41 to abut against the metal shell of the MT female head 82.

[0076] Preferably, as another embodiment of the utility model, the MT ferrule fixing mechanism 4 further comprises:

[0077] The limiting piece 44 is arranged above the second positioning groove 42 and detachably connected with the fixing base 41, and the lower end of the limiting piece 44 is provided with a pressing cover 45.

[0078] In this embodiment, the pressing cover 45 at the lower end of the limiting piece 44 exerts a downward force on the main body of the MT ferrule 8, further improving the stability of the main body of the MT ferrule 8 fixed in the second positioning groove 42.

[0079] Preferably, as another embodiment of the utility model, as shown in Figure 9 The connecting assembly comprises:

[0080] The second push rod 46 is horizontally provided with a second counterbore, one end of the second push rod 46 penetrates through the second counterbore, and the other end of the second push rod 46 is connected with a second push block;

[0081] The second spring 47 is sleeved on the second push rod 46, and the two ends of the second spring 47 respectively abut against the second push block and the stepped surface of the second counterbore;

[0082] The magnetic piece 48 is arranged at one end of the second push rod 46;

[0083] The magnet 49 is arranged on the fixing base 41.

[0084] In this embodiment, when it is needed to fix the PCB board through the moving base 43, the second push block is pushed towards the fixing base 41 until the magnetic piece 48 at one end of the second push rod 46 is connected with the magnet 49 on the fixing base 41, at this time, the moving base 43 is connected with the fixing base 41, the moving base 43 abuts against the metal shell of the MT female head 82, and the second spring 47 is in a compressed state and exerts a force on the second push block and the base 1 respectively, since the position of the moving base 43 is fixed at this time, the position of the second push rod 46 is also fixed, at this time, the second spring 47 will exert a force on the moving base 43 towards the fixing base 41, that is, the elastic pre-tightening force of the moving base 43 on the metal shell of the MT female head 82 is generated. The second push block is pulled outwards, so that the magnetic piece 48 is disconnected with the magnet 49, and the elastic pre-tightening force of the moving base 43 on the metal shell of the MT female head 82 is released.

[0085] Preferably, as another embodiment of the utility model, as shown in Figure 5 The upper end of the moving base 43 is provided with a wire guide 410 for limiting the optical fiber of the MT ferrule 8.

[0086] In this embodiment, the optical fiber of the MT ferrule 8 penetrates through the wire guide 410, the optical fiber of the MT ferrule 8 is limited by the wire guide 410, and the position of the optical fiber is limited.

[0087] Preferably, as another embodiment of the utility model, the base 1 is equipped with a second linear guide rail 6, and the moving seat 43 is connected with the sliding block of the second linear guide rail 6.

[0088] In this embodiment, the second linear guide rail 6 is the same as the first linear guide rail 5, and the existing linear guide rail can be used.

[0089] Although the embodiments of the utility model have been disclosed as above, it is not limited to the application listed in the specification and the embodiments, and it can be fully applied to various fields suitable for the utility model. For those skilled in the art, other modifications can be easily realized, and therefore the utility model is not limited to specific details and the embodiments shown and described herein.

Claims

1. An optical device coupling test fixture, comprising: The utility model relates to a kind of modular jack (MT) fixing device, including: Base; PCB board fixing mechanism, which is detachably arranged on the base; Power-on plate fixing mechanism, which is detachably arranged on the base, and the spacing between the PCB board fixing mechanism is adjustable; MT plug core fixing mechanism, which is detachably arranged on the base, and the spacing between the PCB board fixing mechanism is adjustable.

2. The optical device coupling test fixture of claim 1, wherein, The base is provided with a first linear guide rail, and the power-on plate fixing mechanism is connected with the slider of the first linear guide rail.

3. The optical device coupling test fixture of claim 1, wherein, The PCB board fixing mechanism includes: Mounting seat, which is detachably arranged on the base, and the upper end of the mounting seat is provided with a first positioning groove corresponding to the PCB board; Elastic clamping assembly, which is arranged on the mounting seat to clamp the PCB board placed in the first positioning groove.

4. The optical device coupling test fixture as described in claim 3, characterized in that, The bottom wall of the first positioning groove is provided with a cooling fin.

5. The optical device coupling test fixture of claim 3, wherein, The elastic clamping assembly includes: Clamping piece, and the upper end of the mounting seat is provided with a notch corresponding to the clamping piece, and the notch is communicated with the first positioning groove; First push rod, and the mounting seat is horizontally provided with a first counterbore communicated with the notch, one end of the first push rod passes through the first counterbore and is connected with the clamping piece, and the other end is provided with a first push block; First spring, which is sleeved on the first push rod, and the two ends thereof respectively abut against the first push block and the step surface of the first counterbore.

6. The optical device coupling test fixture of claim 3, wherein, The MT plug core fixing mechanism includes: Fixed seat, which is detachably arranged on the mounting seat, and the upper end of the fixed seat is provided with a second positioning groove corresponding to the main body of MT plug core, and the second positioning groove is open at both ends; Moving seat, which is arranged on one side of the mounting seat and detachably connected with the mounting seat through a connecting assembly, and the side opening of the second positioning groove close to the moving seat, one end of the main body of MT plug core placed in the first positioning groove passes out of the second positioning groove and abuts against the moving seat.

7. The optical device coupling test fixture as described in claim 6, characterized in that, The MT plug core fixing mechanism further includes: Limiting piece, which is arranged above the second positioning groove and detachably connected with the fixed seat, and the lower end of the limiting piece is provided with a pressing member.

8. The optical device coupling test fixture as described in claim 6, characterized in that, The connecting assembly includes: Second push rod, and the mounting seat is horizontally provided with a second counterbore, one end of the second push rod passes through the second counterbore, and the other end is connected with a second push block; Second spring, which is sleeved on the second push rod, and the two ends thereof respectively abut against the second push block and the step surface of the second counterbore; Magnetic piece, which is arranged at one end of the second push rod; Magnet, which is arranged on the fixed seat.

9. The optical device coupling test fixture of claim 6, wherein, The upper end of the moving seat is provided with a wire guide for limiting the optical fiber of MT plug core.

10. An optical device coupling test fixture as claimed in claim 6, wherein, The base is provided with a second linear guide rail, and the moving seat is connected with the slider of the second linear guide rail.

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