A mechanical strength tester for optical fiber fusion splices

Abstract

The utility model provides a kind of mechanical strength testing machine of optical fiber fusion point. It is related to optical fiber strength detection technical field. The mechanical strength testing machine of optical fiber fusion point includes‌ universal testing machine, and beam is fixedly installed on the‌ universal testing machine, rotating rod is rotatably installed on the beam, electric motor is fixedly installed on the top of the beam, the output shaft of the electric motor is fixedly connected with the top end of rotating rod, circular plate one is fixedly installed on the bottom of rotating rod, four hollow blocks one are fixedly installed on the circular plate one, four link rods are fixedly installed on the bottom of the circular plate one, and the same circular plate two is fixedly installed on the bottom of four link rods. The utility model has the advantages of multi-station batch testing, efficiency improvement, high-stability clamping and precise force application for samples, and support and anti-interference design for the other three hollow blocks two.

Description

Technical Field

[0001] This utility model relates to the field of optical fiber strength testing technology, specifically to an optical fiber fusion splice mechanical strength testing machine. Background Technology

[0002] A fiber optic fusion splice is a physical node that precisely aligns and permanently connects the end faces of two optical fibers using high-temperature fusion technology. Essentially, it achieves a seamless interface for optical signal transmission by melting the fiber core and cladding material. To determine the robustness of the fiber optic fusion splice connection, mechanical strength tests are typically performed on the splice location, including tensile, compressive, bending, and shear tests. These tests are usually conducted using a universal testing machine, which can comprehensively evaluate the mechanical strength and durability of the fiber optic fusion splice, ensuring its reliability and stability in various applications.

[0003] Traditionally, universal testing machines can only test one fiber optic sample at a time during tensile testing. After each test, the fiber optic sample must be replaced. During the replacement process, the universal testing machine must be shut down, and the fixtures must be adjusted one by one. This process cannot be carried out continuously, and the time spent on replacing the fiber optic sample cannot be saved, which can easily affect the testing efficiency of the universal testing machine.

[0004] Therefore, it is necessary to provide a new optical fiber fusion splice mechanical strength testing machine to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to provide a mechanical strength testing machine for fiber optic fusion splices that offers multi-station batch testing, improves efficiency, provides highly stable clamping and precise force application to samples, and offers support and anti-interference design for three alternative hollow blocks.

[0006] To solve the above-mentioned technical problems, the optical fiber fusion splice mechanical strength testing machine provided by this utility model includes: a universal testing machine, on which a crossbeam is fixedly installed, a rotating rod is rotatably installed on the crossbeam, an electric motor is fixedly installed on the top of the crossbeam, the output shaft of the electric motor is fixedly connected to the top of the rotating rod, a circular plate is fixedly installed at the bottom of the rotating rod, four hollow blocks are fixedly installed on the circular plate, four connecting rods are fixedly installed at the bottom of the circular plate, the same circular plate is fixedly installed at the bottom of the four connecting rods, four sliding holes are opened on the circular plate, hollow blocks are slidably installed in each of the four sliding holes, clamping blocks are fixedly installed on one inner wall of each of the four hollow blocks, threaded rods are rotatably installed on each of the four hollow blocks, and threaded rods are threaded onto each of the eight threaded rods. The clamping block 2 has worm gears fixedly fitted on each of the eight threaded rods. Worms are rotatably mounted on each of the four hollow blocks 1 and four hollow blocks 2, with each of the eight worm gears meshing with one of the eight worm gears. Two support frames are fixedly mounted on the bottom of each of the four hollow blocks 2, and rectangular blocks are fixedly mounted on the bottom of each of the four hollow blocks 2. Side blocks are fixedly mounted on one side of each of the four hollow blocks 2. A circular plate 3 is located below the circular plate 2. The bottoms of the four support frames are in contact with the top of the circular plate 3. A sliding plate is fixedly mounted on the bottom of the circular plate 3, and a fixing block is fixedly mounted on the top of the circular plate 3. A pull rod is slidably mounted on the fixing block, and a fitting block is fixedly fitted on the pull rod. A spring is fitted on the pull rod. A square rod is fixedly mounted on the top of the circular plate 3, and a connecting block is slidably fitted on the square rod. A support plate is fixedly mounted on the top of the connecting block.

[0007] Preferably, four long strips are fixedly installed on the universal testing machine. The four long strips are located on both sides of circular plate one and circular plate two, respectively. The four long strips are slidably connected to circular plate one and circular plate two, respectively. A positioning frame is fixedly installed on the top of the crossbeam, and one inner wall of the positioning frame is fixedly connected to the base of the electric motor.

[0008] Preferably, a connecting rod is fixedly installed between the inner walls of the two sides of each of the four hollow blocks one and the four hollow blocks two, and the eight connecting rods are respectively fixedly connected to the eight clamping blocks one and respectively slidably connected to the eight clamping blocks two.

[0009] Preferably, each of the eight clamping blocks has a passage hole, and the eight threaded rods pass through the eight passage holes without contacting the inner wall of the eight passage holes.

[0010] Preferably, the bottom of each of the multiple support frames is inlaid with a ball bearing, the multiple ball bearings are in contact with the top of the circular plate three, the multiple rectangular blocks are provided with circular insertion holes, the multiple circular insertion holes are adapted to the pull rod, and a handle is fixedly installed at one end of the pull rod.

[0011] Preferably, each of the four sliding holes has a through hole I on one side of its inner wall, and each of the four through holes I is adapted to the corresponding four worm gears. Each of the four sliding holes has a through hole II on the side away from the four through holes I, and each of the four through holes II is adapted to the corresponding side block.

[0012] Preferably, the circular plate has a circular hole, the connecting block is rotatably installed in the circular hole, the bottom of the connecting block has a strip hole, and the square rod is slidably installed in the strip hole.

[0013] Compared with related technologies, the optical fiber fusion splice mechanical strength testing machine provided by this utility model has the following advantages:

[0014] This invention achieves fixation of the fiber optic sample end by manually rotating the worm gear to adjust the position of clamping block two. The large contact surface between clamping block one and clamping block two allows for a more powerful clamping of the fiber optic sample. Clamping block two has a relatively large range of motion, making it easy to clamp fiber optic samples of different specifications, thus increasing the applicability of the equipment. The self-locking characteristics of the worm gear and worm ensure stable clamping. Through a disc-shaped layout of four symmetrically distributed hollow blocks one and two, four fiber optic samples can be fixed simultaneously, achieving "one test, multiple backups". When one sample completes the tensile test, the electric motor drives the rotation mechanism to switch to the next sample to be tested, significantly reducing downtime for replacement and improving testing efficiency. Through the cooperation of springs, pull rods, and square rods, the support plate is only released from support at the current testing position. The other three sets of hollow blocks two are kept static by contacting the circular plate three through rolling balls, providing dynamic support and anti-interference design for the three alternative hollow blocks two, and preventing displacement or loosening of untested samples due to the movement of the circular plate three. Attached Figure Description

[0015] Figure 1 This is a front view structural diagram of the present utility model;

[0016] Figure 2 This is a front view assembly diagram of the circular plate one in this utility model;

[0017] Figure 3 This is a side view assembly diagram of the circular plate one in this utility model;

[0018] Figure 4 This is a front sectional view of the circular plate in this utility model.

[0019] Figure 5 This is a front sectional view of the circular plate 1, hollow block 1, and hollow block 2 in this utility model.

[0020] Figure 6 for Figure 5 Enlarged schematic diagram of hollow block two;

[0021] Figure 7 This is a side sectional view of the circular plate in this utility model.

[0022] Figure 8 for Figure 7 An enlarged schematic diagram of the hollow block 2 shown in the figure;

[0023] Figure 9 This is a top sectional view of the connecting rod shown in this utility model.

[0024] Figure 10 This is a top cross-sectional view of the circular plate two shown in this utility model.

[0025] In the diagram: 1. Universal testing machine; 2. Crossbeam; 3. Rotating rod; 4. Electric motor; 5. Circular plate one; 6. Hollow block one; 7. Connecting rod; 8. Circular plate two; 9. Sliding hole; 10. Hollow block two; 11. Clamping block one; 12. Threaded rod; 13. Clamping block two; 14. Worm gear; 15. Worm; 16. Support frame; 17. Rectangular block; 18. Side block; 19. Circular plate three; 20. Sliding plate; 21. Fixed block; 22. Pull rod; 23. Suit block; 24. Spring; 25. Square rod; 26. Connecting block; 27. Support plate. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0027] Please refer to the following: Figures 1-10 ,in, Figure 1 This is a front view structural diagram of the present invention. Figure 2 This is a front view assembly diagram of the circular plate one in this utility model; Figure 3 This is a side view assembly diagram of the circular plate one in this utility model; Figure 4 This is a front sectional view of the circular plate in this utility model. Figure 5 This is a front sectional view of the circular plate 1, hollow block 1, and hollow block 2 in this utility model. Figure 6 for Figure 5 Enlarged schematic diagram of hollow block two; Figure 7 This is a side sectional view of the circular plate in this utility model. Figure 8 for Figure 7 An enlarged schematic diagram of the hollow block 2 shown in the figure; Figure 9This is a top sectional view of the connecting rod shown in this utility model. Figure 10 This is a top sectional view of the circular plate II shown in this utility model. The optical fiber fusion splice mechanical strength testing machine includes: a universal testing machine 1, a crossbeam 2 fixedly mounted on the universal testing machine 1, a rotating rod 3 rotatably mounted on the crossbeam 2, an electric motor 4 fixedly mounted on the top of the crossbeam 2, the output shaft of the electric motor 4 fixedly connected to the top end of the rotating rod 3, a circular plate I 5 fixedly mounted on the bottom end of the rotating rod 3, four hollow blocks I 6 fixedly mounted on the circular plate I 5, the four hollow blocks I 6 arranged in a circular array, four connecting rods 7 fixedly mounted on the bottom of the circular plate I 5, and the same circular plate II 8 fixedly mounted at the bottom end of the four connecting rods 7, the circular plate II 8 having four sliding holes. 9. Four sliding holes 9 correspond to the positions of four hollow blocks 6. Hollow blocks 10 are slidably installed in each of the four sliding holes 9. Protruding holes are opened on the sides of the four hollow blocks 6 and 10 that are close to each other. Clamping blocks 11 are fixedly installed on the inner walls of one side of each of the four hollow blocks 6 and 10. All eight clamping blocks 11 and the eight clamping blocks 23 mentioned below extend outward through the eight protruding holes. Threaded rods 12 are rotatably installed on each of the four hollow blocks 6 and 10. Clamping blocks 23 are threadedly installed on each of the eight threaded rods 12. The set is equipped with a worm gear 14. Worms 15 are rotatably mounted on each of the four hollow blocks 1-6 and four hollow blocks 2-10. One end of each of the eight worms 15 extends outwards and meshes with one of the eight worm gears 14. Two support frames 16 are fixedly mounted on the bottom of each of the four hollow blocks 2-10. A rectangular block 17 is fixedly mounted on the bottom of each of the four hollow blocks 2-10. A side block 18 is fixedly mounted on one side of each of the four hollow blocks 2-10. A circular plate 3-19 is located below the circular plate 2-8. The bottoms of the four support frames 16 contact the top of the circular plate 3-19. A sliding plate is fixedly mounted on the bottom of the circular plate 3-19. 20. The bottom of the sliding plate 20 is fixedly installed with the upper pressure head originally installed on the universal testing machine 1. The top of the circular plate 3 19 is fixedly installed with a fixing block 21. A pull rod 22 is slidably installed on the fixing block 21. A fitting block 23 is fixedly fitted on the pull rod 22. A spring 24 is fitted on the pull rod 22. The top of the circular plate 3 19 is fixedly installed with a square rod 25. A connecting block 26 is slidably fitted on the square rod 25. A support plate 27 is fixedly installed on the top of the connecting block 26. The support plate 27 is a circular plate with a notch at one corner. The notch on the support plate 27 is located directly below the side block 18 in front.

[0028] In order to provide support for the circular plates 5 and 8 and ensure the secure installation of the electric motor 4, four long strips are fixedly installed on the universal testing machine 1. The four long strips are located on both sides of the circular plates 5 and 8, and are slidably connected to the circular plates 5 and 8. A positioning frame is fixedly installed on the top of the crossbeam 2, and one inner wall of the positioning frame is fixedly connected to the base of the electric motor 4.

[0029] To restrict the movement direction of the eight clamping blocks 13, in this method, connecting rods are fixedly installed between the inner walls of the four hollow blocks 6 and the four hollow blocks 10 on both sides. The eight connecting rods are fixedly connected to the eight clamping blocks 11 respectively, and the eight connecting rods are slidably connected to the eight clamping blocks 13 respectively. Each of the eight clamping blocks 11 has a passage hole, and eight threaded rods 12 pass through the eight passage holes. The eight threaded rods 12 do not contact the inner walls of the eight passage holes, and the eight passage holes can prevent the eight clamping blocks 11 from being affected by the eight threaded rods 12.

[0030] To reduce wear on the multiple support frames 16 and increase the smoothness of movement of the four hollow blocks 10, in this method, the bottom of the multiple support frames 16 is inlaid with ball bearings, the multiple ball bearings are in contact with the top of the circular plate 19, the multiple rectangular blocks 17 are provided with circular insertion holes, the multiple circular insertion holes are adapted to the pull rod 22, and a handle is fixedly installed at one end of the pull rod 22.

[0031] In order to reserve space for the four worm gears 15 and the four side blocks 18 when the four hollow blocks 10 slide, in this method, a through hole 1 is provided on one side inner wall of each of the four sliding holes 9. The four through holes 1 are adapted to the corresponding four worm gears 15 respectively. A through hole 2 is provided on the side of each of the four sliding holes 9 away from the four through holes 1. The four through holes 2 are adapted to the corresponding side blocks 18 respectively.

[0032] To prevent the circular plate 28 from affecting the support plate 27 when it rotates, in this method, the circular plate 28 is provided with a circular hole, the connecting block 26 is rotatably installed in the circular hole, the bottom of the connecting block 26 is provided with a strip hole, and the square rod 25 is slidably installed in the strip hole.

[0033] The working principle of the optical fiber fusion splice mechanical strength testing machine provided by this utility model is as follows:

[0034] In the initial state, hollow block 6 and hollow block 10 are close to each other. The pull rod 22 is slidably installed in the rectangular block 17 located in front. The eight clamping blocks 11 and eight clamping blocks 23 are in an open state. When it is necessary to test the fiber optic splice, multiple fiber optic samples to be tested are prepared in advance. The top of one fiber optic sample is placed between clamping blocks 11 and 13 corresponding to hollow block 6 located in front. Then, the corresponding worm gear 15 is rotated. The worm gear 15 drives the threaded rod 12 to rotate through the worm wheel 14 that meshes with it. The clamping block 23 will gradually move closer to clamping block 11 until clamping blocks 11 and 13 firmly clamp the top of the fiber optic sample. Then, the control of the worm gear 15 can be released. Then, the same operation method is used to rotate the worm gear 15 on hollow block 10 located in front, corresponding to hollow block 6, to fix the bottom of the fiber optic sample between the corresponding clamping blocks 11 and 13, thus completing the fixation of the fiber optic sample.

[0035] After that, the universal testing machine 1 is started normally. The sliding plate 20 will drive the circular plate 3 19 to slide down gradually. The circular plate 3 19, through the cooperation of the pull rod 22 and the corresponding support frame 16, will drive the hollow block 2 10 to move down at the same time. During the movement of the circular plate 3 19, the square rod 25 will gradually slide out from the connecting block 26. The fixed optical fiber sample will be gradually stretched by external force to carry out the tensile test.

[0036] While the optical fiber sample is being tested, it is supported by the support plate 27 and the side block 18. Therefore, the other three hollow blocks 2 10 do not lose support due to the downward movement of the circular plate 3 19, and remain in their original positions. At this time, the six worm gears 15 can be rotated one by one in the same way to fix the other three optical fiber samples between the three hollow blocks 1 6 and the three hollow blocks 2 10. The optical fiber sample to be tested is fixed in advance.

[0037] After the tensile test of the fiber optic sample is completed, the sliding plate 20 will drive the circular plate 19 to gradually move upward until the circular plate 19 returns to its initial height. The square rod 25, driven by the circular plate 19, will slide back into the connecting block 26, completing the connection between the square rod 25 and the connecting block 26. This will bring the four hollow blocks 10 to the same height. Then, the pull rod 22 will be pulled, and the pull rod 22 will compress the spring 24 through the sleeve block 23. The spring 24 will gradually deform under the force, and the end of the pull rod 22 will gradually slide out of the corresponding rectangular block 17. The connection between the pull rod 22 and the rectangular block 17 will be released. Afterward, keeping the pull rod 22 still, the electric motor 4 will be started. The electric motor 4 will rotate the rod 3... The circular plates 5 and 8 rotate simultaneously, moving the samples originally located on one side to the front, while the tested samples are moved to the side, adjusting the positions of the four samples. Then, the electric motor 4 is turned off, and the pull rod 22 is slowly released. Under the action of the spring 24, the pull rod 22 slides back into the corresponding rectangular block 17, reconnecting to the current rectangular block 17. Due to the restriction of the square rod 25, the support plate 27 is not affected during the rotation of the circular plate 8. The support plate 27 continues to support the three hollow blocks 10 except for the one in front. At this time, the hollow block 10 in front will continue the next round of testing under the action of the circular plate 3 19 and the sliding plate 20.

[0038] Compared with related technologies, the optical fiber fusion splice mechanical strength testing machine provided by this utility model has the following advantages:

[0039] In this invention, the position of clamping block 13 is adjusted by manually rotating the worm gear 15 to fix the end of the optical fiber sample. The contact surface between clamping block 11 and clamping block 13 is relatively large, which can clamp the optical fiber sample more forcefully. Clamping block 13 has a relatively large range of motion, which is convenient for clamping optical fiber samples of different specifications, increasing the applicability of the equipment. The self-locking characteristics of the worm wheel 14 and worm gear 15 ensure stable clamping. Through the four sets of symmetrically distributed hollow blocks 6 and 10 in a disc-like layout, four optical fiber samples can be fixed simultaneously, realizing " "One test, multiple backups" means that when a sample completes the tensile test, the electric motor 4 drives the rotation mechanism to switch to the next sample to be tested, which greatly reduces downtime and improves testing efficiency. Through the cooperation of spring 24, pull rod 22 and square rod 25, the support plate 27 is only released from support at the current test position. The other three sets of hollow blocks 2 10 are kept static by contacting the circular plate 3 19 through rolling balls, providing dynamic support and anti-interference design for the three alternative hollow blocks 2, and avoiding displacement or loosening of untested samples due to the movement of the circular plate 3 19.

[0040] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, those skilled in the art who understand the principle of the above utility model can clearly understand the specific details of its power mechanism, power supply system and control system.

[0041] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A mechanical strength testing machine for optical fiber fusion splices, comprising a universal testing machine, characterized in that, A crossbeam is fixedly installed on the universal testing machine. A rotating rod is rotatably installed on the crossbeam. An electric motor is fixedly installed on the top of the crossbeam. The output shaft of the electric motor is fixedly connected to the top of the rotating rod. A circular plate is fixedly installed at the bottom of the rotating rod. Four hollow blocks are fixedly installed on the circular plate. Four connecting rods are fixedly installed at the bottom of the circular plate. The same circular plate is fixedly installed at the bottom of the four connecting rods. The circular plate has four sliding holes. Hollow blocks are slidably installed in each of the four sliding holes. Clamping blocks are fixedly installed on one inner wall of each of the four hollow blocks. Threaded rods are rotatably installed on each of the four hollow blocks. Clamping blocks are threadedly installed on each of the eight threaded rods. Worm gears are fixedly fitted on each of the eight threaded rods. Each of the four hollow blocks 1 and the four hollow blocks 2 is rotatably mounted with a worm gear, and the eight worm gears mesh with eight worm wheels respectively. Two support frames are fixedly mounted on the bottom of each of the four hollow blocks 2, and a rectangular block is fixedly mounted on the bottom of each of the four hollow blocks 2. A side block is fixedly mounted on one side of each of the four hollow blocks 2. A circular plate 3 is provided below the circular plate 2. The bottoms of the four support frames are in contact with the top of the circular plate 3. A sliding plate is fixedly mounted on the bottom of the circular plate 3, and a fixing block is fixedly mounted on the top of the circular plate 3. A pull rod is slidably mounted on the fixing block, and a fitting block is fixedly sleeved on the pull rod. A spring is sleeved on the pull rod. A square rod is fixedly mounted on the top of the circular plate 3, and a connecting block is slidably sleeved on the square rod. A support plate is fixedly mounted on the top of the connecting block.

2. The optical fiber fusion splice mechanical strength testing machine according to claim 1, characterized in that, Four long strips are fixedly installed on the universal testing machine. The four long strips are located on both sides of circular plate one and circular plate two, respectively. The four long strips are slidably connected to circular plate one and circular plate two, respectively. A positioning frame is fixedly installed on the top of the crossbeam. The inner wall of one side of the positioning frame is fixedly connected to the base of the electric motor.

3. The optical fiber fusion splice mechanical strength testing machine according to claim 1, characterized in that, A connecting rod is fixedly installed between the inner walls of the two sides of each of the four hollow blocks 1 and the four hollow blocks 2. The eight connecting rods are fixedly connected to the eight clamping blocks 1 respectively, and the eight connecting rods are slidably connected to the eight clamping blocks 2 respectively.

4. The optical fiber fusion splice mechanical strength testing machine according to claim 1, characterized in that, Each of the eight clamping blocks has a passage hole, and the eight threaded rods pass through the eight passage holes without contacting the inner wall of the eight passage holes.

5. The optical fiber fusion splice mechanical strength testing machine according to claim 1, characterized in that, The bottom of each of the multiple support frames is inlaid with a ball bearing, and the multiple ball bearings are in contact with the top of the circular plate. Each of the multiple rectangular blocks has a circular insertion hole, and the multiple circular insertion holes are adapted to the pull rod. A handle is fixedly installed at one end of the pull rod.

6. The optical fiber fusion splice mechanical strength testing machine according to claim 1, characterized in that, Each of the four sliding holes has a through hole 1 on one side of its inner wall. Each of the four through holes 1 is adapted to the corresponding four worm gears. Each of the four sliding holes has a through hole 2 on the side away from the four through holes 1. Each of the four through holes 2 is adapted to the corresponding side block.

7. The optical fiber fusion splice mechanical strength testing machine according to claim 1, characterized in that, The circular plate has a circular hole, the connecting block is rotatably installed in the circular hole, the bottom of the connecting block has a strip hole, and the square rod is slidably installed in the strip hole.

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