Multi-core optical fiber end face detector

Abstract

The utility model discloses a multi-core optical fiber end face detector, which comprises a shell, an angle-adjustable clamp, a camera module and a focal length adjusting module, the angle-adjustable clamp is arranged on the shell, the camera module and the focal length adjusting module are arranged in the shell, the angle-adjustable clamp is used for clamping an optical fiber to be detected, and the camera module and the focal length adjusting module are arranged in the shell. The camera module is used for shooting an end face image of the to-be-detected optical fiber, and the focal length adjusting module adjusts the focal length of the camera module. Compared with the prior art, the focal length of the camera module is automatically adjusted, a plurality of optical cores on the optical fiber head are detected one by one, the image definition of the optical fiber end face is improved, and the detection precision of the optical fiber end face is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of optical fiber end face detection, in particular to a multi-core optical fiber end face detector. Background Art

[0002] In the daily use of optical fiber, it is inevitable that the optical fiber will be damaged. Damaged or incomplete optical fiber will affect the actual effect of optical fiber communication, so it is necessary to detect the optical fiber.

[0003] Current fiber end face detectors usually detect whether there are defects on the fiber end face through optical modules. Most of them use manual focus to adjust the clarity of the fiber end face image to more accurately determine whether there are defects on the fiber end face. However, when inspecting the end faces of multi-core optical fibers, this solution requires manual adjustment of the lens focal length or manual adjustment of the fiber position one by one, which is not only time-consuming and labor-intensive, but also difficult to meet the clarity requirements and has poor detection accuracy. Utility Model Content

[0004] The main purpose of the utility model is to propose a multi-core optical fiber end face detector, which aims to improve the clarity of the optical fiber end face image, and improve the optical fiber end face detection accuracy and work efficiency by automatically adjusting the focal length of the optical module to detect multiple optical cores on the optical fiber head one by one.

[0005] To achieve the above-mentioned purpose, the utility model proposes a multi-core optical fiber end face detector, including a shell, an angle-adjustable clamp, a camera module and a focus adjustment module, the angle-adjustable clamp is arranged on the shell, the camera module and the focus adjustment module are arranged in the shell, the angle-adjustable clamp is used to clamp the optical fiber to be inspected, the camera module is used to capture the end face image of the optical fiber to be inspected, and the focus adjustment module adjusts the focal length of the camera module.

[0006] A further technical solution of the utility model is that the focal length adjustment module includes an X-axis motion module, a Y-axis motion module and a Z-axis motion module, the X-axis motion module is arranged at the bottom of the shell, the Z-axis module is connected to the X-axis motion module, the Y-axis motion module is connected to the Z-axis motion module, and the X-axis motion module, the Y-axis motion module and the Z-axis motion module cooperate to drive the camera module to move along the X-axis, Z-axis and Y-axis to drive the camera module to move and adjust the focal length of the camera module.

[0007] A further technical solution of the utility model is that the X-axis motion module includes a first base, a first guide rail, a first slider and an X-axis motion motor, the first base is fixedly arranged at the bottom of the shell, the first guide rail is fixedly arranged on the first base along the X-axis direction, the first slider is slidably arranged on the first guide rail, the output end of the X-axis motion motor is connected to one side of the first slider, and the Z-axis motion module is fixedly connected to the first slider.

[0008] A further technical solution of the utility model is that the Z-axis motion module includes a second base, a second guide rail, a second slider, a connecting seat and a Z-axis motion motor, the second base is fixedly connected to the first slider, the second guide rail is arranged on the second base along the Z-axis direction, the second slider is slidably arranged on the second guide rail, and the connecting seat is fixedly arranged on the top of the second slider and connected to the output end of the Z-axis motion motor.

[0009] A further technical solution of the utility model is that the Y-axis motion module includes a connecting block, a third guide rail, a third slider and a Y-axis motion motor, the third guide rail is arranged on the connecting seat along the Y-axis direction, the third slider is slidably connected to the third guide rail, the connecting block is fixedly connected to the third slider, the Y-axis motion motor is fixedly arranged at one end of the connecting seat, and the output end of the Y-axis motion motor is connected to the connecting block.

[0010] A further technical solution of the utility model is that the camera module comprises a camera, a lens and a light-transmitting seat, the camera is arranged at one end of the light-transmitting seat, and the lens is arranged at the top of the light-transmitting seat.

[0011] A further technical solution of the utility model is that a controller connected to the signals of the X-axis motion motor, the Y-axis motion motor and the Z-axis motion motor is arranged in the shell.

[0012] A further technical solution of the utility model is that the X-axis motion motor, the Y-axis motion motor and the Z-axis motion motor are stepping motors.

[0013] A further technical solution of the utility model is that the angle-adjustable clamp includes a fixing seat, a clamp body, a rotating shaft and an adjusting screw, the fixing seat is fixedly arranged on the shell, the clamp body is rotatably arranged in the fixing seat through the rotating shaft, and the adjusting screw is arranged at the bottom of the fixing seat for fixing the clamp body.

[0014] A further technical solution of the present invention is that at least two fixing grooves corresponding to the fixing screws are arranged at the bottom of the clamp body along the front-to-back direction.

[0015] The beneficial effects of the multi-core optical fiber end face detector of the utility model are:

[0016] The utility model adopts the above technical scheme, including a shell, an angle-adjustable clamp, a camera module and a focus adjustment module, wherein the angle-adjustable clamp is arranged on the shell, and the camera module and the focus adjustment module are arranged in the shell. The angle-adjustable clamp is used to clamp the optical fiber to be detected, and the camera module is used to capture the end face image of the optical fiber to be detected. The focus adjustment module adjusts the focal length of the camera module, thereby realizing automatic adjustment of the focal length of the camera module, detecting multiple optical cores on the optical fiber head one by one, improving the clarity of the optical fiber end face image, and further improving the optical fiber end face detection accuracy and work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of a preferred embodiment of the multi-core optical fiber end face detector of the utility model;

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of a preferred embodiment of the multi-core optical fiber end face detector of the utility model without a housing;

[0020] Figure 3 This is a schematic diagram of the three-dimensional structure from another angle when the preferred embodiment of the utility model multi-core optical fiber end face detector is not provided with a housing;

[0021] Figure 4 This is a front view of a preferred embodiment of the utility model multi-core optical fiber end face detector without a housing;

[0022] Figure 5 This is a rear view of a preferred embodiment of the utility model multi-core optical fiber end face detector without a housing;

[0023] Figure 6 This is a top view of a preferred embodiment of the multi-core optical fiber end face detector of the utility model without a housing;

[0024] Figure 7 This is a left side view of a preferred embodiment of the utility model multi-core optical fiber end face detector without a housing;

[0025] Figure 8 This is a right side view of a preferred embodiment of the utility model multi-core optical fiber end face detector without a housing;

[0026] Fig. 9 is a schematic diagram of the exploded structure of the angle-adjustable fixture;

[0027] Fig.10 It is the front view of the fixture body;

[0028] Fig.11 It is a bottom view of the fixture body.

[0029] Description of Figure Numbers:

[0030] Shell 1; angle-adjustable fixture 2; first base 3; first guide rail 4; first slider 5; X-axis motion motor 6; second base 7; second guide rail 8; second slider 9; connecting seat 10; Z-axis motion motor 11; connecting block 12; third guide rail 13; third slider 14; Y-axis motion motor 15; camera 16; lens 17; light-transmitting seat 18; fixing seat 19; fixture body 20; rotating shaft 21; adjusting screw 22; fixing slot 23; controller 24.

[0031] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0034] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0035] The utility model proposes a multi-core optical fiber end face detector, such as Figures 1 to 11 As shown, a preferred embodiment of the multi-core optical fiber end face detector of the utility model includes a housing 1, an angle-adjustable fixture 2, a camera module and a focus adjustment module.

[0036] The angle-adjustable clamp 2 is arranged on the shell 1, and the camera module and the focus adjustment module are arranged in the shell 1. The angle-adjustable clamp 2 is used to clamp the optical fiber to be detected, the camera module is used to capture the end face image of the optical fiber to be detected, and the focus adjustment module adjusts the focal length of the camera module.

[0037] Taking into account that the front end of some optical fibers has an inclination angle, in order to improve the scope of application of the multi-core optical fiber end face detector of the utility model, this embodiment adopts an angle-adjustable clamp structure, namely the angle-adjustable clamp 2. When detecting different types of optical fibers, the optical fiber is fixed by the angle-adjustable clamp 2, and then the clamp of the angle-adjustable clamp 2 is adjusted so that the end face of the optical fiber to be detected is opposite to the front face of the camera module, thereby ensuring the image quality of the optical fiber end face captured by the camera module.

[0038] It is worth mentioning that in the present embodiment, the focus adjustment module can automatically adjust the focus according to the clarity of the image of the multi-core optical fiber end face taken by the camera module, thereby ensuring the image clarity of the multi-core optical fiber end face, and thus facilitating accurate identification of whether there are defects on the optical fiber end face, such as scratches, etc., without the user having to manually adjust the lens focus or manually adjust the optical fiber position one by one, thereby improving the detection accuracy and work efficiency of the multi-core optical fiber end face.

[0039] Specifically, in this embodiment, the focal length adjustment module includes an X-axis motion module, a Y-axis motion module and a Z-axis motion module. The X-axis motion module is arranged at the bottom of the shell 1, the Z-axis module is connected to the X-axis motion module, and the Y-axis motion module is connected to the Z-axis motion module. The X-axis motion module, the Y-axis motion module and the Z-axis motion module cooperate to drive the camera module to move along the X-axis, the Z-axis and the Y-axis to drive the camera module to move to adjust the focal length of the camera module.

[0040] The X-axis motion module includes a first base 3, a first guide rail 4, a first slider 5 and an X-axis motion motor 6. The first base 3 is fixedly arranged at the bottom of the shell 1, the first guide rail 4 is fixedly arranged on the first base 3 along the X-axis direction, the first slider 5 is slidably arranged on the first guide rail 4, the output end of the X-axis motion motor 6 is connected to one side of the first slider 5, and the Z-axis motion module is fixedly connected to the first slider 5.

[0041] The Z-axis motion module includes a second base 7, a second guide rail 8, a second slider 9, a connecting seat 10 and a Z-axis motion motor 11. The second base 7 is fixedly connected to the first slider 5. The second guide rail 8 is arranged on the second base 7 along the Z-axis direction. The second slider 9 is slidably arranged on the second guide rail 8. The connecting seat 10 is fixedly arranged on the top of the second slider 9 and is connected to the output end of the Z-axis motion motor 11.

[0042] The Y-axis motion module includes a connecting block 12, a third guide rail 13, a third slider 14 and a Y-axis motion motor 15. The third guide rail 13 is arranged on the connecting seat 10 along the Y-axis direction. The third slider 14 is slidably connected to the third guide rail 13. The connecting block 12 is fixedly connected to the third slider 14. The Y-axis motion motor 15 is fixedly arranged at one end of the connecting seat 10, and the output end of the Y-axis motion motor 15 is connected to the connecting block 12.

[0043] The camera module includes a camera 16 , a lens 17 and a light-transmitting seat 18 . The camera 16 is disposed at one end of the light-transmitting seat 18 , and the lens 17 is disposed at the top of the light-transmitting seat 18 .

[0044] In this embodiment, a controller 24 connected to the X-axis motion motor 6 , the Y-axis motion motor 15 , and the Z-axis motion motor 11 is disposed in the housing 1 .

[0045] The X-axis motion motor 6 , the Y-axis motion motor 15 , and the Z-axis motion motor 11 are high-precision stepping motors.

[0046] It should be noted that, in the present embodiment, the controller 24 can be connected to an external control terminal having a display screen, through which the image of the optical fiber end face is displayed. The controller 24 is used to control the movement of the X-axis motion motor 6, the Y-axis motion motor 15, and the Z-axis motion motor 11 according to the image clarity of the optical fiber end face, and then adjust the focal length of the camera module, so that the quality of the optical fiber end face obtained by shooting can achieve the clearest purpose, thereby improving the detection accuracy of the optical fiber end face.

[0047] Furthermore, in this embodiment, the angle-adjustable clamp 2 includes a fixed seat 19, a clamp body 20, a rotating shaft 21 and an adjusting screw 22. The fixed seat 19 is fixedly arranged on the shell 1, and the clamp body 20 is rotatably arranged in the fixed seat 19 through the rotating shaft 21. The adjusting screw 22 is arranged at the bottom of the fixed seat 19 for fixing the clamp body 20.

[0048] Among them, the rotating shaft 21 is horizontally arranged in the fixing seat 19, and the clamp body 20 can rotate up and down around the rotating shaft 21. When the clamp body 20 is rotated so that the end face of the optical fiber fixed by the clamp body 20 is opposite to the front face of the camera module, the clamp body 20 can be locked by the adjusting screw 22.

[0049] Furthermore, in this embodiment, at least two fixing grooves 23 corresponding to the fixing screws are provided at the bottom of the clamp body 20. The two fixing grooves 23 are provided along the front-back direction. When different types of optical fibers are inserted into the clamp body 20, and the clamp body 20 is adjusted to a suitable angle so that the end face of the optical fiber is opposite to the front face of the camera module, one of the two fixing grooves 23 is just opposite to the adjusting screw 22. At this time, the clamp body 20 can be fixed by rotating the adjusting screw 22 to the fixing groove 23, thereby preventing the clamp body 20 from rotating and affecting the clarity of the captured image of the optical fiber end face, thereby improving the optical fiber end face detection accuracy.

[0050] The beneficial effects of the multi-core optical fiber end face detector of the utility model are:

[0051] The utility model adopts the above technical scheme, including a shell, an angle-adjustable clamp, a camera module and a focus adjustment module, wherein the angle-adjustable clamp is arranged on the shell, and the camera module and the focus adjustment module are arranged in the shell. The angle-adjustable clamp is used to clamp the optical fiber to be detected, and the camera module is used to capture the end face image of the optical fiber to be detected. The focus adjustment module adjusts the focal length of the camera module, thereby realizing automatic adjustment of the focal length of the camera module, detecting multiple optical cores on the optical fiber head one by one, improving the clarity of the optical fiber end face image, and further improving the optical fiber end face detection accuracy and work efficiency.

[0052] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the concept of the utility model, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A multi-core optical fiber end face detector, characterized in that: It includes a shell, an angle-adjustable clamp, a camera module and a focus adjustment module. The angle-adjustable clamp is arranged on the shell, and the camera module and the focus adjustment module are arranged in the shell. The angle-adjustable clamp is used to clamp the optical fiber to be detected, the camera module is used to take the end face image of the optical fiber to be detected, and the focus adjustment module adjusts the focal length of the camera module.

2. The multi-core optical fiber end face detector according to claim 1, characterized in that: The focal length adjustment module includes an X-axis motion module, a Y-axis motion module and a Z-axis motion module. The X-axis motion module is arranged at the bottom of the shell, the Z-axis motion module is connected to the X-axis motion module, and the Y-axis motion module is connected to the Z-axis motion module. The X-axis motion module, the Y-axis motion module and the Z-axis motion module cooperate to drive the camera module to move along the X-axis, the Z-axis and the Y-axis to drive the camera module to move and adjust the focal length of the camera module.

3. The multi-core optical fiber end face detector according to claim 2, characterized in that: The X-axis motion module includes a first base, a first guide rail, a first slider and an X-axis motion motor. The first base is fixedly arranged at the bottom of the shell, the first guide rail is fixedly arranged on the first base along the X-axis direction, the first slider is slidably arranged on the first guide rail, the output end of the X-axis motion motor is connected to one side of the first slider, and the Z-axis motion module is fixedly connected to the first slider.

4. The multi-core optical fiber end face detector according to claim 3, characterized in that: The Z-axis motion module includes a second base, a second guide rail, a second slider, a connecting seat and a Z-axis motion motor. The second base is fixedly connected to the first slider, the second guide rail is arranged on the second base along the Z-axis direction, the second slider is slidably arranged on the second guide rail, and the connecting seat is fixedly arranged on the top of the second slider and connected to the output end of the Z-axis motion motor.

5. The multi-core optical fiber end face detector according to claim 4, characterized in that: The Y-axis motion module includes a connecting block, a third guide rail, a third slider and a Y-axis motion motor. The third guide rail is arranged on the connecting seat along the Y-axis direction. The third slider is slidably connected to the third guide rail. The connecting block is fixedly connected to the third slider. The Y-axis motion motor is fixedly arranged at one end of the connecting seat, and the output end of the Y-axis motion motor is connected to the connecting block.

6. The multi-core optical fiber end face detector according to claim 5, characterized in that: The camera module comprises a camera, a lens and a light-transmitting seat, wherein the camera is arranged at one end of the light-transmitting seat, and the lens is arranged at the top of the light-transmitting seat.

7. The multi-core optical fiber end face detector according to claim 6, characterized in that: A controller connected to the X-axis motion motor, the Y-axis motion motor, and the Z-axis motion motor signals is arranged in the shell.

8. The multi-core optical fiber end face detector according to claim 7, characterized in that: The X-axis motion motor, the Y-axis motion motor, and the Z-axis motion motor are stepping motors.

9. The multi-core optical fiber end face detector according to any one of claims 1 to 8, characterized in that: The angle-adjustable clamp includes a fixing seat, a clamp body, a rotating shaft and an adjusting screw. The fixing seat is fixedly arranged on the shell, the clamp body is rotatably arranged in the fixing seat through the rotating shaft, and the adjusting screw is arranged at the bottom of the fixing seat for fixing the clamp body.

10. The multi-core optical fiber end face detector according to claim 9, characterized in that: The bottom of the clamp body is provided with at least two fixing grooves corresponding to the adjusting screws along the front-back direction.

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