An automatic coupling detection device and detection method for multi-core optical fibers

Abstract

The present invention discloses a multi-core optical fiber automatic coupling detection device and a detection method, belonging to the technical field of optical fiber detection, including a sleeve fixing table, which is provided with a plurality of sleeve fixing clips arranged at intervals in sequence along a first direction; an optical fiber fixing table, which is provided with a plurality of optical fiber fixing clips arranged for detection in sequence along the first direction; a connector, which includes a butt-joint optical fiber for butting a to-be-detected optical fiber and an optical fiber testing device to test the continuity and attenuation of the to-be-detected optical fiber; and a driving mechanism for driving the connector to move along the first direction and a second direction. In the multi-core optical fiber automatic coupling detection device in the present application, all the sleeves and the to-be-detected optical fibers are fixed, and the moving butt-joint of the to-be-detected optical fiber and the butt-joint optical fiber are all realized by the device, avoiding the problem of incorrect operation caused by human factors and the problems of missed detection and repeated detection of optical fibers during the manual detection process.

Description

Technical Field

[0001] The present invention belongs to the technical field of optical fiber detection, and particularly relates to a multi-core optical fiber automatic coupling detection device and a detection method. Background Art

[0002] During the production process of optical fibers, detection is required. In the prior art, the detection optical fiber is coupled with a standard optical fiber. By setting an optical fiber coupler at the end of the standard optical fiber, the signal transmission condition at the end of the detection optical fiber is tested to determine whether the detection optical fiber is qualified.

[0003] During the coupling process, the detection optical fiber is usually held manually and then manually docked with the connector. The existing detection methods mainly use manual coupling. It can cope with small-core optical fibers, but for large-core optical fibers, the optical fibers usually need to be docked multiple times for coupling. During the coupling process, it is extremely easy to cause detection confusion problems, such as optical fiber missed detection or repeated detection problems, resulting in the inability to obtain the true detection situation of the optical fiber in the manual detection process of the optical fiber. Summary of the Invention

[0004] In view of one or more of the above-mentioned defects or improvement requirements of the prior art, the present invention provides a multi-core optical fiber automatic coupling detection device to solve the problems of missed detection or repeated detection in the existing manual detection process of optical fibers.

[0005] To achieve the above object, the present invention provides a multi-core optical fiber automatic coupling detection device, which includes:

[0006] A sleeve fixing table, on which a plurality of sleeve fixing clips are arranged at intervals along a first direction, and each of the sleeve fixing clips is used for clamping and fixing each sleeve in the optical cable;

[0007] An optical fiber fixing table, on which a plurality of optical fiber fixing clips are arranged at intervals along the first direction, and each of the optical fiber fixing clips is used for clamping and fixing each optical fiber to be tested in the sleeve;

[0008] A connector, which includes a butt joint optical fiber. One end of the butt joint optical fiber is used to be connected with the optical fiber to be tested along a second direction, and the other end is used to connect an optical fiber testing device to test the continuity and attenuation of the optical fiber to be tested;

[0009] A driving mechanism, on which the connector is arranged, and is used to drive the driving mechanism to move along the first direction and the second direction respectively, so as to drive the butt joint optical fiber to be respectively butted with each of the optical fibers to be tested.

[0010] As a further improvement of the present invention, each of the sleeve fixing clips includes a first sleeve fixing clip and a second sleeve fixing clip arranged in sequence along the second direction, and a cutting device is further provided between the first sleeve fixing clip and the second sleeve fixing clip. The cutting path of the cutting device is arranged along the first direction for cutting off each of the sleeves.

[0011] As a further improvement of the present invention, the cutting device includes a rack arranged along the first direction, and a rotating gear is engaged above the rack. The rotating gear is connected to a driving motor for driving the rotating gear to rotate along the first direction;

[0012] A cutting knife is arranged vertically on the rotating gear. One end of the cutting knife is connected to the rotating gear, and the other end extends vertically.

[0013] As a further improvement of the present invention, each of the sleeve fixing clips is arranged at uniform intervals along the first direction, and the distance that the rotating gear rotates one circle is equal to the distance between any two adjacent sleeve fixing clips.

[0014] As a further improvement of the present invention, a sleeve color identifier is further provided on the sleeve fixing table. Each of the sleeve fixing clips is coated with a color in sequence along the chromatogram order. The sleeve color identifier is used to identify the colors of each sleeve and each of the sleeve fixing clips.

[0015] As a further improvement of the present invention, the optical fiber fixing table includes a V-shaped docking groove opened along the first direction. Each of the optical fiber fixing clips is arranged in sequence along the first direction on one side of the V-shaped docking groove, and the connector is arranged on the other side of the V-shaped docking groove.

[0016] As a further improvement of the present invention, the driving mechanism includes a stepping motor. The stepping motor includes an execution lead screw arranged along the first direction, and a mounting table is arranged on the execution lead screw. The connector is arranged on the mounting table;

[0017] A moving table arranged along the second direction is further provided on the mounting table. The moving table is used to drive the connector to move along the second direction.

[0018] As a further improvement of the present invention, a plurality of limiting grooves are opened along the second direction in the V-shaped docking groove, and the plurality of limiting grooves are arranged in one-to-one correspondence with the optical fibers to be measured; and part of the limiting grooves is located on one side of the V-shaped docking groove, and part of the limiting grooves is located on the other side of the V-shaped docking groove.

[0019] As a further improvement of the present invention, each of the optical fiber fixing clips is arranged at uniform intervals along the first direction. An optical fiber color identifier is provided on the optical fiber fixing table. The optical fiber color identifier is used to identify the color of the optical fiber to be measured;

[0020] The fiber optic color identifier is communicatively connected to the driving mechanism. The fiber optic color identifier is configured to convert pulse signals according to the order of the colors of the fiber optic to be measured in the chromatogram, so as to control the driving mechanism to move a corresponding distance, such that the docking fiber optic is docked with each fiber optic to be measured.

[0021] This application further includes a method for automatically coupling and detecting multi-core fiber optics, which includes the following steps:

[0022] S1. Strip the optical cable to be measured, arrange the sleeves in the optical cable to be measured in a side-by-side order successively, and fix each sleeve.

[0023] S2. Select the sleeves in the order of chromatogram arrangement successively, strip the first sleeve, and fix each fiber optic to be measured in the first sleeve.

[0024] S3. Test the continuity and attenuation of each fiber optic to be measured respectively according to the chromatogram arrangement order.

[0025] S4. After testing all the fiber optics to be measured in the sleeve, cut off the sleeve.

[0026] S5. Select the second sleeve in the order of chromatogram arrangement, strip the second sleeve, fix each fiber optic to be measured in the sleeve, and repeat steps S3 and S4 until all the fiber optics to be measured in all the sleeves are tested.

[0027] As a further improvement of the present invention, the continuity and attenuation of the fiber optic to be measured are realized by a connector, a fiber optic testing device, a driving mechanism and a fiber optic color identifier. Each fiber optic to be measured is fixed by fiber optic fixing clips arranged at uniform intervals along the first direction.

[0028] S3 includes the following steps:

[0029] S301. The fiber optic color identifier obtains the positions of each fiber optic to be measured according to the chromatogram order.

[0030] S302. Obtain the position of the fiber optic fixing clip corresponding to the first fiber optic according to the chromatogram order.

[0031] S303. Send the position of the fiber optic fixing clip to the driving mechanism, and the driving mechanism drives the connector to move a corresponding distance.

[0032] S304. The driving mechanism drives the connector to move towards the fiber optic to be measured, such that the fiber optic to be measured is connected to the docking fiber optic on the connector, and the fiber optic testing device completes the continuity and attenuation detection of the corresponding fiber optic.

[0033] S305. The driving mechanism moves in the direction away from the fiber optic to be measured, such that the fiber optic to be measured is separated from the docking fiber optic.

[0034] S306. Obtain the position of the fiber optic fixture corresponding to the second optical fiber according to the chromatographic order, and repeat steps S303, S304, and S305 until the continuity and attenuation tests of all the optical fibers to be tested in the sleeve are completed.

[0035] As long as the above-mentioned improved technical features do not conflict with each other, they can be combined with each other.

[0036] Generally speaking, compared with the prior art, the beneficial effects of the above technical solutions conceived by the present invention include:

[0037] (1) For the multi-core optical fiber automatic coupling detection device of the present invention, the sleeve and the optical fibers to be tested in the sleeve are respectively fixed through the sleeve fixing table and the optical fiber fixing table, and then the driving mechanism is used to drive the connector to align with each optical fiber to be tested in the sleeve in the first direction in sequence. After the alignment is completed, the driving mechanism is used to drive the connector to move in the second direction, so that the butt-joint optical fiber on the connector and the optical fiber to be tested complete the butt-joint work, and then the test work is completed through the optical fiber test device. During the above process, the sleeve and the optical fibers to be tested are all fixed, and the moving butt-joint of the optical fiber to be tested and the butt-joint optical fiber are all realized by the equipment, avoiding the problem of incorrect operation caused by human factors, and avoiding the problems of missed detection and repeated detection of optical fibers during manual detection.

[0038] (2) For the multi-core optical fiber automatic coupling detection device of the present invention, by setting a cutting device, the driving motor is used to drive the rotating gear to rotate, and the rotating gear drives the cutting knife to move in the first direction to cut the fixed sleeve in sequence, so that the optical fiber to be tested in the first sleeve cannot be repeatedly tested after the test is completed, avoiding the situation that after the operator accidentally damages the optical fiber during the stripping process, the originally tested optical fiber is repeatedly tested to replace the test result of the damaged optical fiber, and ensuring the accuracy of optical fiber detection.

[0039] (3) For the multi-core optical fiber automatic coupling detection device of the present invention, by opening a V-shaped butt-joint groove in the first direction on the optical fiber fixing table, the optical fiber to be tested and the butt-joint optical fiber are butt-jointed at the bottom of the V-shaped butt-joint groove, avoiding the problem of mutual misalignment caused by the contact of optical fibers during the traditional parallel butt-joint process, ensuring the butt-joint accuracy of the butt-joint optical fiber and the optical fiber to be tested, and guaranteeing the accuracy of the optical fiber detection device for testing the optical fiber to be tested.

[0040] (4) For the multi-core optical fiber automatic coupling detection device of the present invention, by setting a limiting groove on the V-shaped butt-joint groove to limit the optical fiber to be tested and the butt-joint optical fiber in the second direction, the setting of the limiting groove first ensures the accurate butt-joint of the optical fiber to be tested and the butt-joint optical fiber in the second direction, and secondly ensures that they will not shift toward both sides during the contact butt-joint process, guaranteeing their butt-joint quality and the accuracy of the optical fiber detection device for testing the optical fiber to be tested. Description of the Drawings

[0041] Figure 1 It is a schematic diagram of the overall structure of the multi-core optical fiber automatic coupling detection device in the embodiment of the present invention;

[0042] Figure 2 It is a schematic diagram of the overall structure of the sleeve fixing table in the embodiment of the present invention;

[0043] Figure 3 It is a schematic diagram of the overall structure of the cutting device in the embodiment of the present invention;

[0044] Figure 4 It is a schematic diagram of the overall structure at the optical fiber fixing table in the embodiment of the present invention;

[0045] Figure 5 It is a schematic cross-sectional view at the optical fiber fixing table in the embodiment of the present invention.

[0046] In all the drawings, the same reference numerals represent the same technical features, specifically:

[0047] 1. Optical cable; 2. Sleeve; 3. Optical fiber to be measured; 4. Sleeve fixing table; 5. Optical fiber fixing table; 6. Cutting device; 7. Driving mechanism; 8. Connector; 9. Docking optical fiber;

[0048] 401. First sleeve fixing clip; 402. Second sleeve fixing clip;

[0049] 501. Optical fiber fixing clip; 502. V-shaped docking groove; 503. Limiting groove;

[0050] 601. Rack; 602. Rotating gear; 603. Cutting knife;

[0051] 701. Stepper motor; 702. Execution lead screw. Specific embodiments

[0052] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0053] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0054] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0055] In the present invention, unless otherwise clearly specified and limited, the terms "mounted", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0056] In the present invention, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0057] Embodiment:

[0058] Please refer to Figures 1 to 5, in the multi-core optical fiber automatic coupling detection device of the preferred embodiment of the present invention, there is a sleeve fixing table 4. Along the first direction, a plurality of sleeve 2 fixing clips are arranged at intervals in sequence on the sleeve fixing table 4. The sleeve 2 fixing clips are used for clamping and fixing each sleeve 2 in the optical cable 1; an optical fiber fixing table 5. Along the first direction, a plurality of optical fiber fixing clips 501 are also arranged at intervals in sequence on the optical fiber fixing table 5. Each optical fiber fixing clip 501 is used for clamping and fixing each optical fiber 3 to be tested in the sleeve 2. When performing the coupling test on the optical fibers inside the optical cable 1, first, the outer sheath of the optical cable 1 needs to be cut open, the internal sleeves 2 are led out, and the optical fibers in each sleeve 2 are led out for coupling test respectively. Here, the multi-core optical fiber automatic coupling detection device respectively sets the sleeve fixing table 4 and the optical fiber fixing table 5, and uses the sleeve 2 fixing clips and the optical fiber fixing clips 501 on the two fixing tables to fix each sleeve 2 and each optical fiber in the sleeve 2 respectively.

[0059] Furthermore, the above-mentioned multi-core optical fiber automatic coupling detection device further includes a connector 8. The connector 8 includes a butt-joint optical fiber 9. One end of the butt-joint optical fiber 9 is used for butt-jointing with the optical fiber 3 to be tested along the second direction, and the other end is used for connecting to an optical fiber testing device. The on-off and attenuation conditions of each optical fiber 3 to be tested are tested through the optical fiber testing device. The connector 8 is usually used for butt-jointing with the optical fiber 3 to be tested to connect the optical fiber 3 to be tested with an external optical fiber testing device, so as to detect the on-off and attenuation conditions of the optical fiber 3 to be tested through the external optical fiber testing device. Preferably, the connector 8 is an optical fiber coupler. One end of the optical fiber coupler is connected to the butt-joint optical fiber 9. The butt-joint optical fiber 9 partially extends out of the optical fiber coupler and is used for butt-jointing with the end of the optical fiber 3 to be tested to achieve communication connection, and then the optical fiber 3 to be tested is detected through the optical fiber testing device. Preferably, the optical fiber testing device is a computer. The computer is configured with software for testing the on-off and transmission attenuation of the optical fiber. The on-off condition of the optical fiber and the signal transmission attenuation condition can be analyzed through the software. Whether the optical fiber 3 to be tested is qualified is judged by the stability and on-off condition of the optical fiber transmission signal in the optical fiber 3 to be tested.

[0060] Furthermore, the above-mentioned multi-core optical fiber automatic coupling detection device further includes a driving mechanism 7. The connector 8 is arranged on the driving mechanism 7, which is used to drive the driving mechanism 7 to move along the first direction and the second direction respectively, and then drive the butt-joint optical fiber 9 to butt-joint with each optical fiber 3 to be tested. In the actual butt-joint test process, it is necessary to use the butt-joint optical fiber 9 to butt-joint with each optical fiber 3 to be tested arranged along the first direction to complete the test work. Therefore, the driving mechanism 7 is set. The driving mechanism 7 first drives the connector 8 to move along the first direction, so that the butt-joint optical fiber 9 and each optical fiber 3 to be tested are parallel and aligned along the second direction respectively. Then, the butt-joint optical fiber 9 is driven to move along the second direction through the driving, so that the butt-joint optical fiber 9 is connected to the optical fiber 3 to be tested, and then the test work is completed through the optical fiber testing device.

[0061] Preferably, the first direction and the second direction are perpendicular to each other, and both are on the plane formed by the sleeve fixing platform 4 and the optical fiber fixing platform 5; wherein the first direction is perpendicular to the arrangement direction of the optical cable 1, and the second direction is perpendicular to the arrangement direction of the optical cable 1.

[0062] Further, as a preferred embodiment of the present invention, each sleeve 2 fixing clamp in the present application includes a first sleeve fixing clamp 401 and a second sleeve fixing clamp 402 sequentially arranged along the second direction, and a cutting device 6 is arranged between the first sleeve fixing clamp 401 and the second sleeve fixing clamp 402, and the cutting path of the cutting device 6 is arranged along the first direction, which is used to cut off each sleeve 2. During the coupling test of the optical fiber, after all the optical fibers in the first sleeve 2 are tested, all the optical fibers in the next sleeve 2 are tested by the connector 8 in cooperation with the optical fiber testing device. In the actual test process, due to the laziness of the tester or the optical fiber is stripped when stripping the cable, the tester will repeat the test of the optical fiber in the sleeve 2 that was tested normally before to cover up the fact that the optical fiber was stripped, resulting in the uploaded data that the optical fibers in the optical cable 1 are all qualified, and the signal transmission is disconnected in actual use. Therefore, the sleeve 2 fixing clamp here includes a first sleeve fixing clamp 401 and a second sleeve fixing clamp 402, which are respectively fixed along the axial direction of the sleeve 2 by the two sleeve 2 fixing clamps, and then a cutting device 6 is arranged between the two sleeve 2 fixing clamps. After all the optical fibers in the first sleeve 2 are tested, the tested sleeve 2 is cut off by the cutting device 6 to avoid the problem of staff using the tested optical fiber to replace the optical fiber 3 to be tested and cheating.

[0063] Further, as a preferred embodiment of the present invention, the cutting device 6 in the present application includes a rack 601 arranged along the first direction, a rotating gear 602 is meshed above the rack 601, and the rotating gear 602 is connected to a driving motor for driving the rotating gear 602 to rotate along the first direction; the rotating gear 602 is vertically arranged with a cutting knife 603, one end of the cutting knife 603 is connected to the rotating gear 602, and the other end thereof extends vertically. Specifically, the sleeve fixing platform 4 has a gap between the first sleeve fixing clamp 401 and the second sleeve fixing clamp 402 for the cutting knife 603 to pass through, the rack 601, the rotating gear 602 and the driving motor are arranged below the sleeve fixing platform 4, the cutting knife 603 is arranged vertically, the cutting knife 603 passes through the gap and is located on the sleeve fixing platform 4, and the height of the part of the cutting knife 603 passing through the sleeve fixing platform 4 is higher than the arrangement height of the sleeve 2 fixing clamp, so that the cutting knife 603 can cut off each sleeve 2 in the optical cable 1 when moving along the first direction. Furthermore, one end of the cutting knife 603 is connected to the central axis of the rotating gear 602 . Although the rotating gear 602 moves along the rack 601 driven by the driving motor, the cutting knife 603 is always arranged vertically and does not rotate due to the rotation of the rotating gear 602 .

[0064] Further preferably, the above-mentioned fixing clips for each sleeve 2 are arranged at uniform intervals along the first direction, and the distance that the rotating gear 602 rotates one circle is equal to the distance between any two adjacent fixing clips for the sleeve 2. The fixing clip for the sleeve 2 is used for fixing each sleeve 2 in the cable. Since the optical fibers in each sleeve 2 are detected separately, only after all the optical fibers in the first sleeve 2 are tested, the optical fibers in the second sleeve 2 will be tested. Therefore, the optical fibers in the sleeve 2 are tested in sequence, and the cutting of each sleeve 2 is also carried out in order. By limiting the distance between the fixing clips for the sleeve 2 and the moving distance of the rotating gear 602, the cutting distance of the cutting knife 603 each time is controllable. After the cutting of the first sleeve 2 is completed, the driving motor drives the rotating gear 602 to rotate one circle, and the cutting knife 603 just completes the cutting of the next sleeve 2, which is convenient for the detection process.

[0065] Further preferably, a color identifier for the sleeve 2 is also provided on the above-mentioned sleeve fixing table 4. The fixing clips for each sleeve 2 are coated with colors in sequence according to the chromatogram order. This color identifier for the sleeve 2 is used to identify the colors of each sleeve 2 and the fixing clips for the sleeve 2. When using the optical fiber testing device to test the continuity and attenuation of each optical fiber, it is necessary to record the testing conditions of each optical fiber. However, the optical fiber testing device itself cannot directly read the numbers of each sleeve 2 and each optical fiber in the optical cable 1, and manually inputting the numbers of each optical fiber will also make the detection program extremely complicated. Therefore, in order to facilitate the testing work of the optical cable 1, each sleeve 2 in the optical cable 1 is usually tested in the order of the chromatogram, and each optical fiber in the sleeve 2 is also tested in the order of the chromatogram. Without disturbing the order of the sleeve 2 and the optical fiber, each optical cable 1 corresponds one-to-one with the testing order. After the optical fiber is detected by the optical fiber testing device, the specific continuity and attenuation conditions of each optical fiber can be quickly traced back according to the test data.

[0066] Further preferably, the above-mentioned optical fiber fixing table 5 includes a V-shaped docking groove 502 opened along the first direction. Each optical fiber fixing clip 501 is arranged in sequence along the first direction on one side of the V-shaped docking groove 502, and the connector 8 is arranged on the other side of the V-shaped docking groove 502. When using the docking optical fiber 9 on the connector 8 to dock with the optical fiber to be tested 3, if the two are docked horizontally, the optical fiber itself is relatively thin and flexible, and it is very easy to cause the docking optical fiber 9 and the optical fiber to be tested 3 to be misaligned due to docking misalignment during the horizontal docking process, resulting in poor contact between the two, and finally causing the optical fiber testing device to be unable to accurately obtain the on / off and attenuation conditions of the optical fiber to be tested 3. Therefore, a V-shaped docking groove 502 is provided on the optical fiber fixing table 5. By placing the optical fiber to be tested 3 on one side of the V-shaped docking groove 502 and placing the docking optical fiber 9 on the other side, the driving mechanism 7 is used to drive the docking optical fiber 9 to move towards the optical fiber to be tested 3, so that the two are docked at the bottom of the V-shaped docking groove 502. Preferably, the stripping of the above-mentioned cable and the stripping of the sleeve 2 are carried out manually. Therefore, the stripping length of the optical fiber to be tested 3 is controllable, and the end of the optical fiber to be tested 3 can be located at the bottom of the V-shaped docking groove 502, so as to facilitate the docking work of the docking optical fiber 9 and the optical fiber to be tested 3.

[0067] Further preferably, the above-mentioned V-shaped docking groove 502 is provided with a plurality of limiting grooves 503 opened along the second direction. The plurality of limiting grooves 503 are arranged in one-to-one correspondence with the optical fiber to be tested 3, and part of the limiting grooves 503 is located on one side of the V-shaped docking groove 502, and part of the limiting grooves 503 is located on the other side of the V-shaped docking groove 502. Although the V-shaped docking groove 502 can avoid the misalignment problem between the docking optical fiber 9 and the optical fiber to be tested 3 to a certain extent, there will still be an interleaving problem when the two optical fibers are docked. Therefore, a plurality of limiting grooves 503 are opened along the second direction in the V-shaped docking groove 502. The plurality of limiting grooves 503 are arranged in one-to-one correspondence with the optical fiber to be tested 3. The limiting grooves 503 are set to be V-shaped or concave similar to the V-shaped docking groove 502, and are used to limit the axial two sides of the optical fiber to be tested 3 and the docking optical fiber 9, further strengthening the docking accuracy of the docking optical fiber 9 and the optical fiber to be tested 3. Preferably, the above-mentioned limiting grooves 503 occupy part of the inclined surface of the V-shaped docking groove 502. Since the docking optical fiber 9 needs to move along the first direction with the connector 8, in order to prevent the docking optical fiber 9 from continuously touching the side wall of the limiting groove 503 when moving along the first direction, causing the docking optical fiber 9 to bend, the limiting groove 503 only occupies part of the inclined surface of the V-shaped docking groove 502, and when the driving mechanism 7 drives the connector 8 to move along the second direction, the docking optical fiber 9 can exit from the limiting groove 503, facilitating the movement of the docking optical fiber 9 in the first direction.

[0068] Further, as an alternative embodiment of the present invention, the driving mechanism 7 includes a stepping motor 701. The stepping motor 701 includes an actuating lead screw 702 arranged in a first direction. An installation table is provided on the actuating lead screw 702, and the connector 8 is arranged on the installation table. A moving table arranged in a second direction is further provided on the installation table, and the moving table is used to drive the connector 8 to move along the second direction. The above form is only one implementation form of the driving mechanism 7, and other driving forms that can achieve the movement of the connector 8 in the first direction and the second direction are also applicable.

[0069] Further, as a preferred embodiment of the present invention, the optical fiber fixing clips 501 in the present application are arranged at uniform intervals along the first direction. An optical fiber color identifier is provided on the optical fixing table, and the optical fiber color identifier is used to identify the color of the optical fiber 3 to be measured. The optical fiber color identifier is communicatively connected to the driving mechanism 7, and the optical fiber color identifier is used to convert a pulse signal according to the order of the color of the optical fiber 3 to be measured in the chromatogram, so as to control the driving mechanism 7 to move a corresponding distance, so that the butt-joint optical fiber 9 is butted with each optical fiber 3 to be measured. Since the optical fiber itself is smaller in size than the sleeve 2, if the tester arranges the optical fibers in the order of the chromatogram, it will take a lot of time for the tester to identify, and it is easy to cause misplacement of the optical fibers. Therefore, here the optical fiber color identifier and the driving mechanism 7 are used in cooperation, only for optical fiber color identification, rather than controlling the optical fibers to be arranged in the order of the chromatogram. Specifically, the optical fiber color identifier is communicatively connected to the driving mechanism 7. The optical fiber color identifier first determines the positions of the optical fibers on the optical fiber fixing table 5, then arranges the optical fibers in the order of the chromatogram according to the color identification situation, and then the optical fiber color identifier transmits the positions of the optical fibers arranged in the order of the chromatogram to the driving mechanism 7. The driving mechanism 7 moves to the corresponding positions in sequence along the first direction according to the order of the chromatogram, and then butts and tests with the optical fiber 3 to be measured along the second direction. After the test is completed, it moves to the second optical fiber 3 to be measured in the order of the chromatogram, and completes the test for all optical fibers in sequence.

[0070] As one of the alternative embodiments, the specific transmission determination method between the above optical fiber color identifier and the driving mechanism 7 is as follows:

[0071] First, the chromatographic order is defined as blue, orange, green, brown, gray, white, red, black, yellow, purple, pink, and light green. Each optical fiber fixing clip 501 is evenly arranged along the first direction, and the distance between each optical fiber fixing clip 501 is set as D. To facilitate the position determination and movement of the connector 8, the distance between the driving mechanism 7 and the first optical fiber fixing clip 501 is also defined as D. After each optical fiber is clamped and fixed on the optical fiber fixing clip 501, the positions of each optical fiber fixing clip 501 relative to the connector 8 along the first direction are D, 2D, 3D... ND, where N is the arrangement position of the optical fiber fixing clip 501 in the first direction. After the optical fiber color identifier identifies each optical fiber, the relative displacement between each optical fiber and the driving mechanism 7 can be determined. Then, the driving mechanism 7 drives the connector 8 to move a corresponding distance, and then docks with the optical fiber to be tested 3 along the second direction to complete the optical fiber testing work.

[0072] One of the core ideas in this application is to introduce more automatic control programs based on the original process of automatic coupling detection of the optical cable 1 to reduce the detection errors caused by human factors during the coupling detection process. Based on this, a sleeve 2 color identifier is set on the sleeve fixing table 4. Since the sleeve 2 itself has a larger outer diameter compared to the optical cable 1 and has better recognition, during the detection process, the detection personnel can directly arrange the sleeves 2 in chromatographic order, and it will not significantly increase the arrangement time of the detection personnel on the sleeves 2. In contrast, although the optical fiber color identifier on the optical fiber fixing table 5 can also identify the color of the optical fiber, the optical fiber size is small, and a large amount of adjustment time of the detection personnel is required for the position adjustment of each optical fiber. Therefore, this optical fiber color identifier is used in conjunction with the driving mechanism 7. After the optical fiber color identifier identifies the color of the optical fiber, the driving mechanism 7 is controlled to move, so that the butt joint optical fiber 9 and the optical fiber to be tested 3 are docked in chromatographic order to ensure the consistency of the detection order and the detection accuracy of the on-off and attenuation conditions of each optical fiber.

[0073] This application also includes a multi-core optical fiber automatic coupling detection method, which includes the following steps:

[0074] S1. Strip the optical cable 1 to be tested, arrange the sleeves 2 in the optical cable 1 to be tested in chromatographic order in sequence, and fix each sleeve 2.

[0075] Specifically, after stripping the outer sheath of the optical cable 1 to be tested, the sleeves 2 inside are exposed, and each sleeve 2 is arranged and fixed on the sleeve fixing clip along the first direction in chromatographic order.

[0076] S2. Select the sleeves 2 in chromatographic order in sequence, strip the first sleeve 2, and fix each optical fiber 3 to be tested in the first sleeve 2.

[0077] S3. Test the on-off and attenuation conditions of each optical fiber 3 to be tested in chromatographic order.

[0078] S4. After all the optical fibers 3 to be tested in the sleeve 2 are tested, cut off the sleeve 2;

[0079] Specifically, after the first sleeve 2 is tested, the driving motor drives the rotating gear 602 to rotate the distance between the two sleeve 2 fixing clips, and the cutting knife 603 cuts off the tested first sleeve 2.

[0080] S5. Select the second sleeve 2 in the chromatographic arrangement order, strip the second sleeve 2, fix each optical fiber in the sleeve 2, and repeat steps S3 and S4 until all the optical fibers 3 to be tested in all the sleeves 2 are tested.

[0081] As one of the embodiments of the present invention, the on / off and attenuation conditions of the optical fibers 3 to be tested are judged by the connector 8, the optical fiber testing device, the driving mechanism 7 and the optical fiber color identifier. Each optical fiber 3 to be tested is fixed by the optical fiber fixing clips 501 arranged at equal intervals along the first direction; the above S3 specifically includes the following steps:

[0082] S301. The optical fiber color identifier obtains the positions of the optical fibers 3 to be tested in the chromatographic order, and sets the positions of the optical fiber fixing clips 501 in turn in the first direction. The positions of the optical fiber fixing clips 501 in the first direction are D, 2D, 3D... ND, where N is the arrangement position of the optical fiber fixing clips 501 in the first direction;

[0083] S302. Obtain the position ND of the optical fiber fixing clip 501 corresponding to the first optical fiber in the chromatographic order;

[0084] S303. Send the position of the optical fiber fixing clip 501 to the driving mechanism 7, and the driving mechanism 7 drives the connector 8 to move a distance of ND;

[0085] S304. The driving mechanism 7 drives the connector 8 to move towards the optical fiber 3 to be tested, so that the optical fiber 3 to be tested is connected to the butt joint optical fiber 9 on the connector 8, and the optical fiber testing device completes the on / off and attenuation tests of the corresponding optical fiber;

[0086] S305. The driving mechanism 7 moves in the direction away from the optical fiber 3 to be tested, so that the optical fiber 3 to be tested is separated from the butt joint optical fiber 9;

[0087] S306. Obtain the position of the optical fiber fixing clip 501 corresponding to the second optical fiber in the chromatographic order, and repeat steps S303, S304 and S305 until all the optical fibers 3 to be tested in the sleeve 2 complete the on / off and attenuation tests.

[0088] Specifically, the determination method for the on / off and attenuation conditions of the above optical fibers 3 to be tested is:

[0089] The optical fiber color identifier identifies the color of the optical fiber 3 to be tested fixed on each optical fiber fixing clip 501, respectively identifies the positions of each optical fiber fixing clip 501 along the first direction, and transmits the position of the first optical fiber (blue optical fiber) to the driving mechanism 7 in the form of a pulse signal according to the chromatographic order. The driving mechanism 7 moves a corresponding distance along the first direction, and then drives the connector 8 to move towards the optical fiber 3 to be tested along the second direction. The optical fiber 3 to be tested is butt-jointed with the corresponding optical fiber, and the optical fiber test device completes the optical fiber continuity and attenuation tests. After the first optical fiber is tested, the driving mechanism 7 drives the connector 8 to move away from the optical fiber 3 to be tested along the second direction, so that the butt-jointed optical fiber 9 exits from the limiting groove 503. The optical fiber color identifier transmits the position of the second optical fiber (orange optical fiber) to the driving mechanism 7. The driving mechanism 7 determines the relative displacement between the orange optical fiber and the blue optical fiber, and then the driving mechanism 7 drives the connector 8 to move a corresponding distance, and then completes the test of the second optical fiber in the same way as the first optical fiber, so as to complete the test work of all the optical fibers 3 to be tested.

[0090] Preferably, the stepping motor 701 in the driving mechanism 7 is controlled by a PLC. The PLC can judge the butt-joint times between the connecting optical fiber in the connector 8 and the optical fiber 3 to be tested according to the number of pulse signals sent by the optical fiber color identifier, that is, the number of times the position of the optical fiber 3 to be tested is sent. When the PLC receives 12 (12-color optical fiber) pulse signals during the test of the optical fibers in a single sleeve 2, it can be judged that all the optical fibers 3 to be tested in this sleeve 2 have completed all the test work. Of course, the number of pulse signals received by the above PLC can be adjusted according to the actual number of sleeves 2 and the number of optical fibers in the optical cable 1 to be tested.

[0091] As an optional embodiment of the present invention, the sleeve 2 color identifier is also linked with the PLC. When the color of the sleeve 2 fixing clip identified by the sleeve 2 color identifier does not match the color of the sleeve 2, it proves that the sleeve 2 is not clamped and fixed in the chromatographic order. When the PLC receives the signal of inconsistent colors sent by the sleeve 2 color identifier, the PLC does not control the driving mechanism 7 to operate, and the detection work of the optical fiber 3 to be tested cannot start.

[0092] Those skilled in the art can easily understand that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic coupling detection device for multi-core optical fibers, characterized in that, it includes: A sleeve fixing table, on which a plurality of sleeve fixing clips are arranged at intervals along a first direction, and each of the sleeve fixing clips is used for clamping and fixing each sleeve in the optical cable; each of the sleeve fixing clips includes a first sleeve fixing clip and a second sleeve fixing clip arranged in sequence along a second direction, and a cutting device is further provided between the first sleeve fixing clip and the second sleeve fixing clip, and the cutting path of the cutting device is arranged along the first direction for cutting each of the sleeves; An optical fiber fixing table, on which a plurality of optical fiber fixing clips are arranged at intervals along a first direction, and each of the optical fiber fixing clips is used for clamping and fixing each optical fiber to be tested in the sleeve; the optical fiber fixing table includes a V-shaped docking groove opened along the first direction, and each of the optical fiber fixing clips is arranged in sequence along the first direction on one side of the V-shaped docking groove, and a connector is arranged on the other side of the V-shaped docking groove; a plurality of limiting grooves are opened in the V-shaped docking groove along the second direction, and the plurality of limiting grooves are arranged in one-to-one correspondence with the optical fibers to be tested; and part of the limiting grooves are located on one side of the V-shaped docking groove, and part of them are located on the other side of the V-shaped docking groove; A connector, the connector includes a docking optical fiber, one end of the docking optical fiber is used for connecting with the optical fiber to be tested along the second direction, and the other end of it is used for connecting to an optical fiber testing device to test the continuity and attenuation of the optical fiber to be tested; A driving mechanism, the connector is arranged on the driving mechanism, and is used to drive the driving mechanism to move along the first direction and the second direction respectively, so as to drive the docking optical fiber to dock with each of the optical fibers to be tested.

2. The automatic coupling detection device for multi-core optical fibers according to claim 1, characterized in that, The cutting device includes a rack arranged along the first direction, a rotating gear is engaged above the rack, and the rotating gear is connected with a driving motor for driving the rotating gear to rotate along the first direction; A cutting knife is arranged vertically on the rotating gear, one end of the cutting knife is connected with the rotating gear, and the other end of it extends vertically.

3. The automatic coupling detection device for multi-core optical fibers according to claim 2, characterized in that, Each of the sleeve fixing clips is arranged at uniform intervals along the first direction, and the distance that the rotating gear rotates one circle is equal to the distance between any two adjacent sleeve fixing clips.

4. The automatic coupling detection device for multi-core optical fibers according to claim 1, characterized in that, A sleeve color identifier is further provided on the sleeve fixing table, and each of the sleeve fixing clips is coated with a color in sequence according to the chromatogram order, and the sleeve color identifier is used to identify the colors of each sleeve and each of the sleeve fixing clips.

5. The automatic coupling detection device for multi-core optical fibers according to claim 1, characterized in that, The driving mechanism includes a stepping motor, the stepping motor includes an execution lead screw arranged along the first direction, an installation table is arranged on the execution lead screw, and the connector is arranged on the installation table; A moving table arranged along the second direction is further provided on the installation table, and the moving table is used to drive the connector to move along the second direction.

6. The automatic coupling detection device for multi-core optical fibers according to claim 1, characterized in that, the optical fiber fixing clips are arranged at uniform intervals along the first direction, and an optical fiber color identifier is provided on the optical fiber fixing table, and the optical fiber color identifier is used to identify the color of the optical fiber to be tested; the optical fiber color identifier is communicatively connected to the driving mechanism, and the optical fiber color identifier is used to convert a pulse signal according to the order of the color of the optical fiber to be tested in the chromatogram, so as to control the driving mechanism to move a corresponding distance, so that the butt-joint optical fiber is butted with each optical fiber to be tested.

7. An automatic coupling detection method for multi-core optical fibers, which is tested by the automatic coupling detection device for multi-core optical fibers according to any one of claims 1 to 6, characterized in that, it includes the following steps: S1. Strip the optical cable to be tested, arrange the sleeves in the optical cable to be tested in chromatographic order in sequence, and fix the sleeves; S2. Select the sleeves in chromatographic order in sequence, strip the first sleeve, and fix the optical fibers to be tested in the first sleeve; S3. Test the continuity and attenuation of each optical fiber to be tested in chromatographic order; S4. After all the optical fibers to be tested in the sleeve are tested, cut off the sleeve; S5. Select the second sleeve in chromatographic order, strip the second sleeve, and fix the optical fibers to be tested in the sleeve, and repeat steps S3 and S4 until all the optical fibers to be tested in all the sleeves are tested.

8. An automatic coupling detection method for multi-core optical fibers, which is tested by the automatic coupling detection device for multi-core optical fibers according to any one of claims 1 to 6, characterized in that, the judgment of the continuity and attenuation of the optical fiber to be tested is carried out through a connector, an optical fiber testing device, a driving mechanism and an optical fiber color identifier, and each optical fiber to be tested is fixed by an optical fiber fixing clip arranged at uniform intervals along the first direction; S3 includes the following steps: S301. The optical fiber color identifier obtains the positions of the optical fibers to be tested in chromatographic order; S302. Obtain the position of the optical fiber fixing clip corresponding to the first optical fiber in chromatographic order; S303. Send the position of the optical fiber fixing clip to the driving mechanism, and the driving mechanism drives the connector to move a corresponding distance; S304. The driving mechanism drives the connector to move towards the optical fiber to be tested, so that the optical fiber to be tested is connected to the butt-joint optical fiber on the connector, and the optical fiber testing device completes the detection of the corresponding optical fiber; S305. The driving mechanism moves in a direction away from the optical fiber to be tested, so that the optical fiber to be tested is separated from the butt-joint optical fiber; S306. Obtain the position of the optical fiber fixing clip corresponding to the second optical fiber in chromatographic order, and repeat steps S303, S304, and S305 until all the optical fibers to be tested in the sleeve are detected.

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