Optical fiber array unit testing device

Abstract

The application discloses a fiber array unit detection device and relates to the field of optical module detection.The fiber array unit detection device comprises a base and a back plate, a detection station is arranged on the base, and a detection disc is placed on the detection station; a plurality of array-distributed fiber array units are distributed on the detection disc; a first horizontal module is arranged in the base, and the detection disc is installed on the first horizontal module; the first horizontal module controls linear motion of the detection disc in a first horizontal direction; a second horizontal module is arranged on the back plate, a camera module is arranged on the second horizontal module, and the second horizontal module controls linear motion of the camera module along a direction perpendicular to the back plate; and the camera module downwardly shoots the fiber array units in the detection disc. The two mutually-perpendicular horizontal modules control the camera module and the detection disc, high-precision control can be realized, full-process automatic detection can be realized, and detection efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of optical module testing, and in particular to a fiber optic array unit testing device. Background Technology

[0002] An optical module is a key device in an optical communication system. Its core function is to convert electrical signals into optical signals. Its internal fiber optic array unit is made of transparent glass. A fiber optic array unit is a component used in optical communication, typically consisting of multiple arranged optical fibers, such as... Figure 1 The structure of the fiber array unit shown is achieved through specific processes and structures to terminate and integrate the optical fibers.

[0003] Due to the high integration and compact structure of fiber optic array units, air bubbles and dust may be introduced during glass sintering. The presence of these bubbles and dust disperses the light signal, leading to decreased optical performance, increased loss, or structural instability. Therefore, defect inspection is essential after production. However, because of the tiny size of the fiber optic array units, traditional methods primarily involve manual inspection using tweezers under a microscope or high-powered microscope. This inspection method is extremely inefficient, impacting production capacity and yield. Summary of the Invention

[0004] This application provides a fiber optic array unit testing device to solve the problem of low efficiency in manual testing of fiber optic array units. The fiber optic array unit testing device includes a base and a backplate. A testing station is provided on the base, and a testing tray is placed on the testing station. A plurality of fiber optic array units are distributed on the testing tray in an array configuration. A first horizontal module is provided inside the base, and the detection disk is mounted on the first horizontal module; the first horizontal module controls the linear movement of the detection disk in a first horizontal direction. A second horizontal module is provided on the back panel, and a camera module is mounted on the second horizontal module. The second horizontal module controls the camera module to move linearly along a direction perpendicular to the back panel; the camera module shoots downwards at the fiber array unit in the detection disk.

[0005] Specifically, the first horizontal module is mounted on the base and includes a linear motor, symmetrically arranged slide rails and sliders, and a carrier plate fixedly mounted on the sliders and linear motor; The symmetrically arranged slide rails are located on both sides of the linear motor and are fixed to the base parallel to each other; the slider is slidably disposed on the slide rails. The detection disk is mounted on the carrier plate.

[0006] Specifically, the base is provided with an open receiving cavity, and the first horizontal module is disposed in the receiving cavity at the opening; The first horizontal module includes a first linear motor, a first slide rail and a first slider arranged symmetrically, and a carrier plate fixedly mounted on the first slider and the first linear motor; The first linear motor and the first slide rail are fixedly mounted on the bottom plate of the receiving cavity, the first slider is slidably mounted on the first slide rail, the detection plate is mounted on the carrier plate, and the height of the carrier plate is consistent with the opening height of the base.

[0007] Specifically, an accordion cover is placed at the opening of the base, and the accordion cover is located above the carrier plate; A limiting plate is provided above the bellows cover, and the limiting plate is fixedly connected to the carrier plate; the detection plate is placed on the limiting plate.

[0008] Specifically, the second horizontal module is located behind the back panel and includes a horizontally arranged second linear motor, a horizontally arranged second slide rail and second slider, and a connecting plate fixedly installed on the second slider and the second linear motor. A horizontal adjustment hole is provided on the back plate, and the connecting end of the connecting plate passes through the horizontal adjustment hole and is connected to the camera module.

[0009] Specifically, two sets of symmetrical horizontal adjustment holes are provided on the back plate. The second horizontal module includes two sets of second slide rails arranged opposite each other on both sides of the second linear motor. The connecting plate is symmetrically mounted on the two sets of second sliders, and the two connecting ends pass through the symmetrical horizontal adjustment holes and are connected to the camera module.

[0010] Specifically, the camera module includes a mounting plate, a camera, symmetrically arranged vertical plates, and an auxiliary light source; The mounting plate is mounted on the connecting plate passing through the horizontal adjustment hole, and the camera is mounted on the mounting plate; The symmetrically arranged vertical plates are installed at the bottom of the mounting plate, and the auxiliary light sources are installed on the vertical plates. The camera's field of view passes through the space between the symmetrically arranged auxiliary light sources.

[0011] Specifically, a photoelectric sensor is also provided on the mounting plate to detect the detection disk at the bottom.

[0012] Specifically, a laser positioning light is also provided on the mounting plate to detect the detection disk at the bottom.

[0013] Specifically, a sliding plate is vertically mounted on the mounting plate, and the camera is slidably mounted on the sliding plate via a fixed third slider for height adjustment.

[0014] The beneficial effects of the technical solution provided in this application include at least the following: the camera module is controlled by the second horizontal module to move to the target position, and then the camera is moved down to the head position of the fiber array unit, and images are captured sequentially in a Z-shaped order. The light source below the camera lens can provide uniform illumination. When a row needs to be changed after inspection, the first horizontal module can be moved closer to or away from the backplate by stepping control. The entire device can realize fully automated inspection and improve inspection efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a fiber optic array unit; Figure 2 This is a schematic diagram of the structure of the fiber optic array unit detection device provided in the embodiments of this application; Figure 3 A schematic diagram of the structure of the first horizontal module in one possible scenario is shown; Figure 4 yes Figure 2 Enlarged view of point A in the middle; Figure 5 A schematic diagram of the structure of the second horizontal module is shown; Figure 6 A schematic diagram of the camera module structure is shown; Figure 7 A connection diagram of the camera module is shown.

[0016] Reference numerals: 110, Fiber optic array unit; 10, Base; 11, Limiting plate; 12, Handle; 20, Back plate; 21, Horizontal adjustment hole; 30, Camera module; 31, Mounting plate; 31, Camera; 33, Photoelectric sensor; 34, Vertical plate; 35, Auxiliary light source; 36, Laser positioning light; 40, Detection plate; 41, Mounting slot; 50, First horizontal module; 51, Base plate; 52, First linear motor; 53, First slide rail; 54, First slider; 55, Carrier plate; 56, Auxiliary rod; 60, Second horizontal module; 62, Second linear motor; 63, Second slide rail; 64, Second slider; 65, Connecting plate; 71, Third slider; 72, Slide plate; 80, Bellows cover. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0018] In this article, "multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0019] Because the fiber array unit 110 has a small structure, a microscope is needed to magnify it so that the internal details can be seen. Therefore, this application uses a high-magnification camera module to take pictures, and a fiber array unit inspection machine with an inspection disk is designed for the purpose of automation.

[0020] Figure 2 This is a schematic diagram of the fiber optic array unit testing device provided in this application embodiment. The device includes a base 10 and a backplate 20, which are structurally L-shaped. A testing station is provided on the base 10, and a testing disk 40 is placed on the testing station. Several fiber optic array units 110 are distributed in an array on the testing disk 40. A first horizontal module 50 is provided inside the base 10, and the testing disk 40 is mounted on the first horizontal module 50. The first horizontal module 50 controls the linear movement of the testing disk 40 in a first horizontal direction, i.e., along the direction approaching or away from the backplate 20.

[0021] A second horizontal module 60 is provided on the back plate 20, and a camera module 30 is disposed on the second horizontal module 60. The second horizontal module 60 controls the camera module 30 to move linearly along the direction perpendicular to the back plate 20; the camera module 30 shoots downwards at the fiber array unit 110 in the detection disk 40. In this embodiment, the back plate 20 can be a brick-moving structure or a box structure, and the second horizontal module 60 can be disposed in front of or behind the plate structure, or inside the box structure, and the camera module 30 in front of the plate can be fixed by means of openings.

[0022] The first horizontal module 50 can be set on the base 10 or inside the base. Figure 3 A schematic diagram of the structure of the first horizontal module 50 in one possible configuration is shown. When the first horizontal module 50 is located on the base 10, the first horizontal module 50 may include a linear motor 52, symmetrically arranged slide rails 53 and sliders 54, and a carrier plate 55 fixedly mounted on the sliders 54 and the linear motor 52. The symmetrically arranged slide rails 53 are located on both sides of the linear motor 52 and are fixed parallel to each other on the base 10. The sliders 54 are slidably arranged on the slide rails 53, and the detection disk 40 is disposed on the carrier plate 55, thus enabling control of the linear movement of the detection disk 40.

[0023] When the first horizontal module 50 is set inside the base 10 (corresponding to) Figure 3The base 10 needs to have an open receiving cavity, and the first horizontal module 50 is disposed in the receiving cavity at the opening. The first horizontal module 50 includes a first linear motor 52, a symmetrically arranged first slide rail 53 and a first slider 54, and a carrier plate 55 fixedly mounted on the first slider 54 and the first linear motor 52. The first linear motor 52 and the first slide rail 53 are fixedly mounted on the bottom plate 51 of the receiving cavity, the first slider 54 is slidably disposed on the first slide rail 53, and the detection disk 40 is disposed on the carrier plate 55, and the height of the carrier plate 55 is consistent with the opening height of the base 10.

[0024] To ensure a compact device structure and prevent vibration from causing the fiber array unit 110 to detach and fall into the opening cavity, a set of parallel auxiliary rods 56 can be installed inside the cavity, and an accordion cover 80 can be placed at the opening of the base 10, with the accordion cover 80 positioned above the carrier plate 55 and resting on the auxiliary rods 56.

[0025] Figure 4 yes Figure 2 The enlarged view at point A shows a limiting plate 11 positioned above the accordion cover 80, and the limiting plate 11 is fixedly connected to the carrier plate 55; the detection disc 40 is placed on the limiting plate 11. In some embodiments, a handle 12 may be provided on the limiting plate 11 for convenient placement and retrieval.

[0026] Figure 5 A schematic diagram of the structure of the second horizontal module is shown. The second horizontal module 60 is located behind the back plate 20 and includes a horizontally arranged second linear motor 62, a horizontally arranged second slide rail 63 and a second slider 64, and a connecting plate 65 fixedly installed on the second slider 64 and the second linear motor 62.

[0027] A horizontal adjustment hole 21 is provided on the back plate 20. The connecting end of the connecting plate 65 passes through the horizontal adjustment hole 21 and is connected to the camera module 30.

[0028] To ensure the camera module is stably fixed to the back plate 20, two sets of symmetrical horizontal adjustment holes 21 can be provided on the back plate 20. The second horizontal module 60 includes two sets of second slide rails 63 arranged opposite each other on both sides of the second linear motor 62. The connecting plate 65 is symmetrically mounted on the two sets of second sliders 64, and the two connecting ends pass through the symmetrical horizontal adjustment holes 21 to connect with the camera module 30. Under the action of the motor, the connecting plate 65 can be moved to control the camera to move in a horizontal straight line. Of course, an accordion cover 80 can also be set inside the horizontal adjustment hole 21 to enclose the inner and outer spaces.

[0029] Figure 6A schematic diagram of the camera module 30 is shown. The camera module 30 includes a mounting plate 31, a camera 32, symmetrically arranged vertical plates 34, and an auxiliary light source 35. The mounting plate 31 is mounted on a connecting plate 65 that passes through a horizontal adjustment hole 21, and the camera 32 is mounted on the mounting plate 31.

[0030] Considering the small size of the fiber optic array unit 110, to ensure the clarity of the images captured by the camera, symmetrical vertical plates 34 can be provided at the bottom of the mounting plate 31. Auxiliary light sources 35 are mounted on the vertical plates 34, and the camera's field of view passes between the symmetrically arranged auxiliary light sources 35. In one possible implementation, scale lines can be provided on the vertical plates 34 to control the deflection angle of the auxiliary light sources 35.

[0031] In some embodiments, since the device includes two horizontally moving modules, to ensure the accuracy of the movement of the camera and the detection disk, a photoelectric sensor 33 and a laser positioning light 36 can also be set on the mounting plate 31. Both can detect the test disk vertically or at a deflection angle downward to ensure control accuracy.

[0032] Figure 7 A connection diagram of the camera module is shown. A sliding plate 72 is vertically mounted on the mounting plate 31. The camera 32 is slidably mounted on the sliding plate 72 via a fixedly mounted third slider 71 for height adjustment.

[0033] In operation, the second horizontal module controls the camera module to move to the target point, then lowers the camera to the head of the fiber array unit, and sequentially captures images in a Z-shaped order. The light source below the camera lens provides uniform illumination. When a row needs to be changed after inspection, the first horizontal module is moved closer to or further away from the backplate using a stepper control. The entire device can achieve fully automated inspection, improving inspection efficiency.

[0034] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A fiber optic array unit detection device, characterized in that, It includes a base (10) and a back plate (20). A testing station is provided on the base (10), and a testing disk (40) is placed on the testing station. Several fiber optic array units (110) are distributed on the testing disk (40). A first horizontal module (50) is provided inside the base (10), and the detection disk (40) is mounted on the first horizontal module (50); the first horizontal module (50) controls the detection disk (40) to move linearly in a first horizontal direction; A second horizontal module (60) is provided on the back plate (20), and a camera module (30) is provided on the second horizontal module (60). The second horizontal module (60) controls the camera module (30) to move linearly in a direction perpendicular to the back plate (20). The camera module (30) shoots downwards at the fiber array unit (110) in the detection disk (40).

2. The fiber optic array unit detection device according to claim 1, characterized in that, The first horizontal module (50) is mounted on the base (10) and includes a linear motor (52), symmetrically arranged slide rails (53) and sliders (54), and a carrier plate (55) fixedly mounted on the sliders (54) and the linear motor (52); The symmetrically arranged slide rails (53) are located on both sides of the linear motor (52) and are fixed parallel to each other on the base (10); the slider (54) is slidably arranged on the slide rails (53); The detection disk (40) is disposed on the carrier plate (55).

3. The fiber optic array unit detection device according to claim 1, characterized in that, The base (10) is provided with an open receiving cavity, and the first horizontal module (50) is disposed in the receiving cavity at the opening; The first horizontal module (50) includes a first linear motor (52), a first slide rail (53) and a first slider (54) arranged symmetrically, and a carrier plate (55) fixedly installed on the first slider (54) and the first linear motor (52); The first linear motor (52) and the first slide rail (53) are fixedly installed on the bottom plate (51) of the receiving cavity. The first slider (54) is slidably disposed on the first slide rail (53). The detection disk (40) is disposed on the carrier plate (55), and the height of the carrier plate (55) is consistent with the opening height of the base (10).

4. The fiber optic array unit detection device according to claim 3, characterized in that, An accordion cover (80) is placed at the opening of the base (10), and the accordion cover (80) is located above the carrier plate (55); A limiting plate (11) is provided above the bellows cover (80), and the limiting plate (11) is fixedly connected to the carrier plate (55); the detection plate (40) is placed on the limiting plate (11).

5. The fiber optic array unit detection device according to claim 1, characterized in that, The second horizontal module (60) is located behind the back plate (20) and includes a horizontally arranged second linear motor (62), a horizontally arranged second slide rail (63) and a second slider (64), and a connecting plate (65) fixedly installed on the second slider (64) and the second linear motor (62); A horizontal adjustment hole (21) is provided on the back plate (20), and the connecting end of the connecting plate (65) passes through the horizontal adjustment hole (21) and is connected to the camera module (30).

6. The fiber optic array unit detection device according to claim 5, characterized in that, Two sets of symmetrical horizontal adjustment holes (21) are provided on the back plate (20). The second horizontal module (60) includes two sets of second slide rails (63) arranged opposite each other on both sides of the second linear motor (62). The connecting plate (65) is symmetrically installed on the two sets of second sliders (64), and the two connecting ends pass through the symmetrical horizontal adjustment holes (21) and are connected to the camera module (30).

7. The fiber optic array unit detection device according to claim 6, characterized in that, The camera module (30) includes a mounting plate (31), a camera (32), symmetrically arranged vertical plates (34), and an auxiliary light source (35); The mounting plate (31) is mounted on the connecting plate (65) that passes through the horizontal adjustment hole (21), and the camera (32) is mounted on the mounting plate (31); The symmetrically arranged vertical plates (34) are installed at the bottom of the mounting plate (31), and the auxiliary light source (35) is installed on the vertical plates (34). The camera's field of view passes through the symmetrically arranged auxiliary light sources (35).

8. The fiber optic array unit detection device according to claim 7, characterized in that, A photoelectric sensor (33) is also provided on the mounting plate (31) to detect the detection disk (40) at the bottom.

9. The fiber optic array unit detection device according to claim 7, characterized in that, A laser positioning light (36) is also provided on the mounting plate (31) to detect the detection disk (40) at the bottom.

10. The fiber optic array unit detection device according to claim 7, characterized in that, A sliding plate (72) is vertically mounted on the mounting plate (31). The camera (32) is slidably mounted on the sliding plate (72) via a fixedly mounted third slider (71) for height adjustment.

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