An optical fiber cutting device

Abstract

The application provides an optical fiber cutting device, comprising a mounting table, a positioning mechanism, two spaced optical fiber clamping mechanisms, a pushing device and a cutting mechanism arranged on the mounting table; the pushing device is used to drive one of the optical fiber clamping mechanisms to move away from the other optical fiber clamping mechanism; the cutting mechanism is located between the two optical fiber clamping mechanisms and comprises a first driving device and a cutting knife; the positioning mechanism comprises an image acquisition device and an image analysis module; the image acquisition device is located above the cutting device and is used to acquire a position image of the optical fiber to be cut and the cutting knife; the image analysis module is used to analyze the image to obtain the distance between the optical fiber to be cut and the cutting knife; and the first driving device is used to drive the cutting knife to move away from or close to the optical fiber to be cut. The application solves the problems that the existing cutting equipment needs manual adjustment of the positioning position of the optical fiber and manual control of the breaking of the optical fiber after scratching, the cutting time is relatively long, and the effective cutting success rate is low.

Description

Technical Field

[0001] This application relates to the field of optical fiber cutting technology, and in particular to an optical fiber cutting device. Background Technology

[0002] In the production and maintenance of fiber lasers, large-core fiber fusion splicing is usually required. Before large-core fiber fusion splicing, fiber optic cleavers are generally used to cut and process the fiber end face.

[0003] Existing fiber optic cleaving equipment requires manual adjustment of the fiber positioning position. The positioning accuracy for large-core fiber is low, and repeated calibration is required to ensure that the blade acts on the fiber. The preparation time for each cut is long. Moreover, after the blade cuts the fiber, it is necessary to manually control the fiber breakage. Uneven force can easily lead to unqualified fiber cross-sections and cutting failure. The success rate of a single effective cut is low, making it difficult to adapt to mass production scenarios. Utility Model Content

[0004] This application provides an optical fiber cutting device that solves the problems of existing cutting equipment requiring manual adjustment of the optical fiber positioning and manual control of optical fiber breakage after scribing, which not only results in long cutting times but also low effective cutting success rates.

[0005] This application discloses an optical fiber cleaving device, comprising a mounting platform, two optical fiber clamping mechanisms, a pushing device, a cleaving mechanism, and a positioning mechanism. The two optical fiber clamping mechanisms are spaced apart on the mounting platform along a first direction, and are used to clamp and fix the optical fiber to be cleaved. The first direction is parallel to the axial direction of the optical fiber to be cleaved. The pushing device is disposed on the mounting platform, and one of the optical fiber clamping mechanisms is mounted on the pushing device. The pushing device drives one of the optical fiber clamping mechanisms to move away from the other optical fiber clamping mechanism in the first direction. The cleaving mechanism is disposed on the mounting platform, located between the two optical fiber clamping mechanisms. The cleaving mechanism includes a first driving device and a cleaving blade for cleaving the optical fiber to be cleaved. The positioning mechanism includes an image acquisition device and an image analysis module electrically connected to each other. The image acquisition device is located above the cleaving device and is used to acquire position images of the optical fiber to be cleaved and the cleaving blade. The image analysis module is used to analyze the position images to obtain the distance between the optical fiber to be cleaved and the cleaving blade. The first driving device is used to drive the cleaving blade away from or towards the optical fiber to be cleaved.

[0006] In some embodiments, the positioning mechanism further includes a mounting rod and a first adjusting bracket, the mounting rod being connected to the mounting platform; the first adjusting bracket includes an adjusting block, a first bracket, and a second bracket, the adjusting block being detachably connected to the mounting rod, the first bracket being slidably connected to the adjusting block along the first direction, the second bracket being slidably connected to the first bracket along the second direction, and the image acquisition device and the image analysis module being connected to the second bracket; wherein the first direction, the second direction, and the axis of the mounting rod are mutually perpendicular.

[0007] In some embodiments, the positioning mechanism further includes a second adjustment frame and an image magnification adjustment device. The second adjustment frame is detachably connected to the mounting rod. The image magnification adjustment device is connected to the second adjustment frame and is located below the image acquisition device for adjusting the magnification of the image acquired by the image acquisition device.

[0008] In some embodiments, the fiber optic clamping mechanism includes a base and a pressure cap, the base being disposed on the top surface of the mounting platform, and the pressure cap being hinged to the base; A fiber carrier is detachably connected to the base. The fiber carrier has a fiber slot for accommodating the fiber to be cut. The pressure cover has a pressure block that matches the fiber slot. The pressure block has a clearance groove.

[0009] In some embodiments, the fiber-carrying groove includes a first groove wall and a second groove wall connected to each other, both the first groove wall and the second groove wall being inclined relative to the axial direction of the mounting rod, and the included angle between the first groove wall and the second groove wall being in the range of 0°-180°.

[0010] In some embodiments, the base is rotatably connected to a slow-release rod on one side of the first direction, the slow-release rod including a first slow-release surface and a second slow-release surface connected to each other, the first slow-release surface being an arc surface; The side of the pressure cap is connected to a slow-release block that cooperates with the slow-release rod, and the surface of the slow-release block facing the base is flush with the surface of the pressure cap facing the base; When the cap and the base are in the open state, the first release surface faces the cap and protrudes from the base. When the cap and the base are in the clamped state, the second release surface is in contact with the surface of the release block facing the base.

[0011] In some embodiments, the gland and the base are connected to each other by a magnet or bolts on the side away from the hinge end.

[0012] In some embodiments, the cutting mechanism further includes a force control module and a second drive device that are electrically connected to each other; The cutting blade is connected to the output end of the second driving device; The force control module is used to control the second drive device to drive the cutting blade to vibrate up and down with preset cutting parameters to cut the optical fiber to be cut.

[0013] In some embodiments, the cutting blade includes a blade and a cutting edge disposed on the blade, the cutting edge including a first cutting edge and a second cutting edge connected to each other; The angle between the first cutting edge and the second cutting edge is 60°, the angle between the first cutting edge and the blade is 30°, and the angle between the second cutting edge and the blade is 30°.

[0014] In some embodiments, the fiber optic cleaving apparatus further includes an auxiliary cleaving device, which is disposed opposite to the cleaving blade; The auxiliary cutting device includes a screw seat and an auxiliary screw. The auxiliary screw is rotatably inserted into the screw seat and can rotate relative to the screw seat to abut against the optical fiber to be cut.

[0015] The beneficial effects of the fiber optic cleaving device provided in this application are as follows: Compared with the prior art, this application sets up two fiber optic clamping mechanisms to clamp and fix the fiber to be cleaved. The positioning mechanism collects the position image between the fiber to be cleaved and the cleaving blade, and analyzes the image to obtain the distance between the fiber to be cleaved and the cleaving blade. Based on this distance, the first driving device drives the cleaving blade to contact the fiber to be cleaved. This allows for quick and accurate adjustment of the positioning position of the fiber to be cleaved, shortening the preparation time before cleaving and improving cleaving efficiency. In addition, by setting up a pushing device, one of the fiber optic clamping mechanisms can be driven away from the other fiber optic clamping mechanism to stretch the fiber to be cleaved. When the cleaving blade cuts the fiber to be cleaved, the fiber to be cleaved will automatically break under the action of tensile force, eliminating manual operation and making the broken surface of the fiber to be cleaved smoother, greatly improving the effective cleaving success rate and facilitating better splicing results. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the fiber optic cutting device provided in the embodiments of this application; Figure 2 This is a schematic diagram of the top surface of the mounting platform of the fiber optic cutting device provided in this application embodiment; Figure 3 This is a schematic diagram of the positioning mechanism of the fiber optic cutting device provided in the embodiments of this application; Figure 4 This is a schematic diagram of the fiber clamping mechanism of the fiber optic dicing device provided in the embodiments of this application; Figure 5 This is a schematic diagram of the fiber carrier component of the fiber clamping mechanism of the fiber optic dicing device provided in the embodiments of this application; Figure 6 This is a schematic diagram of the structure of the cutting blade of the fiber optic cutting device provided in the embodiments of this application; Figure 7 This is a schematic diagram showing the positions of the cutting mechanism and auxiliary cutting device of the fiber optic cutting apparatus provided in the embodiments of this application.

[0017] Attached label: 10, mounting platform; 20. Fiber optic clamping mechanism; 21. Base; 210. Bolt hole; 22. Pressure cap; 23. Fiber carrier; 230. Fiber carrier groove; 24. Pressure block; 240. Clearance groove; 25. Slow-release rod; 251. First slow-release surface; 252. Second slow-release surface; 26. Extension rod; 27. Slow-release block; 28. Magnet; 30. Propulsion device; 40. Cutting mechanism; 41. First driving device; 42. Cutting blade; 421. Blade; 422. Blade edge; 4221. First cutting edge face; 4222. Second cutting edge face; 50. Positioning mechanism; 51. Image acquisition device; 52. Image analysis module; 53. Mounting rod; 54. First adjusting frame; 541. Adjusting block; 542. First support; 543. Second support; 55. Second adjusting frame; 56. Image magnification adjustment device; 60. Auxiliary cutting device; 61. Screw seat; 62. Auxiliary screw; 70. Touch display device; 80. Operation button; 90. Scale. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0019] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0020] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0022] It should also be noted that in the embodiments of this application, the same reference numerals are used to represent the same component or part. For the same part in the embodiments of this application, the reference numerals may only be used to mark one part or component as an example. It should be understood that the reference numerals are also applicable to other identical parts or components.

[0023] This application provides an optical fiber cutting device that solves the problems of existing cutting equipment requiring manual adjustment of the optical fiber positioning and manual control of optical fiber breakage after scribing, which not only results in long cutting times but also low effective cutting success rates.

[0024] refer to Figure 1 and Figure 2The fiber optic cleaving device provided in this application includes a mounting platform 10, two fiber optic clamping mechanisms 20, a pushing device 30, a cleaving mechanism 40, and a positioning mechanism 50. The two fiber optic clamping mechanisms 20 are spaced apart on the mounting platform 10 along a first direction X, and are used to clamp and fix the fiber to be cleaved. The pushing device 30 is disposed on the mounting platform 10, and one of the fiber optic clamping mechanisms 20 is mounted on the pushing device 30. The pushing device 30 is used to drive one of the fiber optic clamping mechanisms 20 to move away from the other fiber optic clamping mechanism 20 in the first direction X. The cleaving mechanism 40... The cutting mechanism 40 is located between two optical fiber clamping mechanisms 20 and is mounted on the mounting platform 10. The cutting mechanism 40 includes a first driving device 41 and a cutting blade 42 for cutting the optical fiber to be cut. The positioning mechanism 50 includes an image acquisition device 51 and an image analysis module 52 that are electrically connected to each other. The image acquisition device 51 is located above the cutting device and is used to acquire position images of the optical fiber to be cut and the cutting blade 42. The image analysis module 52 is used to analyze the position images to obtain the distance between the optical fiber to be cut and the cutting blade 42. The first driving device 41 is used to drive the cutting blade 42 away from or closer to the optical fiber to be cut.

[0025] In this case, the first direction X is parallel to the axis of the optical fiber to be cut.

[0026] It should be noted that by setting two fiber clamping mechanisms 20 to clamp and fix the fiber to be cut, and placing the cutting mechanism 40 between the two fiber clamping mechanisms 20, the fiber to be cut can be cut. In order to ensure that the cutting blade 42 accurately cuts the fiber to be cut, the image acquisition device 51 of the positioning mechanism 50 can acquire the position image between the cutting blade 42 and the fiber to be cut, and the image analysis module 52 can analyze the position image to obtain the distance between the cutting blade 42 and the fiber to be cut. Based on the calculated distance value, the first driving device 41 can drive the cutting blade 42 to approach the fiber to be cut until it contacts the fiber. This allows for quick and accurate adjustment of the position of the cutting blade 42 and the fiber to be cut, which greatly shortens the adjustment time compared to manual adjustment and effectively improves the cutting efficiency.

[0027] Furthermore, after the two fiber clamping mechanisms 20 have clamped and fixed the fiber to be cut, the pushing device 30 can drive one of the fiber clamping mechanisms 20 away from the other fiber clamping mechanism 20. This stretches the fiber to be cut, resulting in a better cutting effect. Moreover, after the cutting blade 42 scratches an opening on the surface of the fiber to be cut, the fiber to be cut will automatically break under the action of tensile force. Compared with the prior art, which manually controls the breakage of the fiber to be cut, the uneven force can easily lead to unqualified fiber cross-sections and cutting failures, resulting in a low single-cut success rate and making it difficult to adapt to mass production scenarios, the fiber breakage method in this embodiment can make the break surface of the fiber to be cut smoother, improve the single-cut success rate, and is conducive to adapting to mass production scenarios.

[0028] It is understood that the aforementioned image acquisition device 51 may include an image sensor and a camera lens, with the camera lens positioned directly above the cleaver 42. The camera lens can acquire images of the position between the cleaver 42 and the optical fiber before cleaving, and can also acquire images of the break point of the optical fiber after cleaving. This allows for the determination of whether the cleaving result meets requirements based on the acquired images of the break point, eliminating the need to place the fiber on another machine for reassessment. If unsatisfied, cleaving can continue, avoiding the complex and redundant operations of repeatedly picking up and placing the optical fiber and changing machines, thus improving work efficiency.

[0029] In some embodiments, reference Figure 3 The positioning mechanism 50 also includes a mounting rod 53 and a first adjusting frame 54. The mounting rod 53 is connected to the mounting platform 10. The first adjusting frame 54 includes an adjusting block 541, a first bracket 542, and a second bracket 543. The adjusting block 541 is detachably connected to the mounting rod 53. The first bracket 542 is slidably connected to the adjusting block 541 along the first direction X. The second bracket 543 is slidably connected to the first bracket 542 along the second direction Y. The image acquisition device 51 and the image analysis module 52 are connected to the second bracket 543.

[0030] Among them, the first direction X, the second direction Y, and the axis Z of the mounting rod 53 are all perpendicular to each other.

[0031] It should be noted that by setting up the mounting rod 53 and the first adjustment frame 54, and mounting the image acquisition device 51 and the image analysis module 52 on the second bracket 543 of the first adjustment frame 54, the adjustment block 541 of the first adjustment frame 54 is detachably connected to the mounting rod 53. This allows the adjustment block 541 to move along the axial direction Z of the mounting rod 53, which in turn allows the image acquisition device 51 and the image analysis module 52 to move along the axial direction Z of the mounting rod 53. This allows adjustment of the focal length of the camera lens of the image acquisition device 51, ensuring the clarity of the positional image between the cutting blade 42 and the optical fiber to be cut, acquired by the image acquisition device 51 before cutting, and the image of the broken position of the optical fiber to be cut, acquired after cutting. This provides a precise image basis for visual positioning during the cutting process and also provides an effective basis for judging whether the cut surface is qualified after cutting.

[0032] Furthermore, since the first bracket 542 is slidably connected to the adjusting block 541 along the first direction X, and the second bracket 543 is slidably connected to the first bracket 542 along the second direction Y, sliding the first bracket 542 relative to the adjusting block 541 in the first direction X can adjust the position of the image acquisition device 51 in the first direction X, and sliding the second bracket 543 relative to the first bracket 542 in the second direction Y can adjust the position of the image acquisition device 51 in the second direction Y. In this way, the position of the image acquisition device 51 can be adjusted according to the different core diameter specifications of the optical fiber to be cut, so that the image acquisition device 51 can acquire a more accurate position image between the cutting blade 42 and the optical fiber to be cut. As a result, the distance value between the cutting blade 42 and the optical fiber to be cut obtained by the image analysis module 52 can be more accurate, which is beneficial for the first driving device 41 to accurately adjust the cutting blade 42 to contact the optical fiber to be cut.

[0033] In some embodiments, reference Figure 3 The positioning mechanism 50 also includes a second adjustment frame 55 and an image magnification adjustment device 56. The second adjustment frame 55 is detachably connected to the mounting rod 53. The image magnification adjustment device 56 is connected to the second adjustment frame 55 and is located below the image acquisition device 51. It is used to adjust the magnification of the image acquired by the image acquisition device 51.

[0034] It should be noted that the image magnification adjustment device 56 is located below the image acquisition device 51, which can adjust the magnification of the camera lens of the image acquisition device 51. The image magnification ratio can be flexibly adjusted according to the visual acquisition requirements of optical fibers with different core diameters to be cut, so as to adapt to the clear image acquisition of optical fibers with different core diameters and provide adaptive visual support for the detection and positioning of the fracture surface of the optical fiber to be cut.

[0035] It is understandable that when the core diameter of the optical fiber to be cut is small, the proportion of the optical fiber to be cut in the image acquired by the image acquisition device 51 is small, which reduces the image clarity and makes it impossible to accurately determine the distance between the optical fiber to be cut and the cutting blade 42. At this time, the image magnification can be increased by the image magnification adjustment device 56 to make the image acquired by the image acquisition device 51 clearer.

[0036] Specifically, the second adjustment frame 55 is detachably connected to the mounting rod 53. By connecting the image magnification adjustment device 56 to the second adjustment frame 55, the second adjustment frame 55 can be adjusted to move along the axis Z of the mounting rod 53, thereby allowing the image magnification adjustment device 56 to move along the axis Z of the mounting rod 53. This enables the image magnification adjustment device 56 to move synchronously with the image acquisition device 51, so as to better adjust the magnification of the image acquired by the image acquisition device 51.

[0037] For example, the image magnification adjustment device 56 can be a zoom ring, with the camera lens of the image acquisition device 51 aligned with the center of the zoom ring. When it is necessary to adjust the image magnification ratio, the zoom ring can be rotated, making the operation relatively simple.

[0038] In some embodiments, reference Figure 4 The fiber optic clamping mechanism 20 includes a base 21 and a cover 22. The base 21 is disposed on the top surface of the mounting platform 10, and the cover 22 is hinged to the base 21. A fiber carrier 23 is detachably connected to the base 21. The fiber carrier 23 is provided with a fiber carrier groove 230 for accommodating the fiber to be cut. The cover 22 is provided with a pressure block 24 that matches the fiber carrier groove 230. The pressure block 24 is provided with a clearance groove 240.

[0039] With the above settings, when it is necessary to cut optical fibers of different core diameters, it is only necessary to connect fiber carriers 23 of different specifications to the base 21. Fiber carriers 23 of different specifications can accommodate optical fibers of different core diameters. Specifically, the fiber carrier grooves 230 on the fiber carriers 23 of different specifications have different sizes, capable of accommodating optical fibers of different core diameters. In this way, the fiber clamping mechanism 20 of this embodiment can fix and clamp optical fibers of different sizes, thus enabling the fiber cutting device of this embodiment to cut optical fibers of different sizes, with a wider range of applications. Compared to the prior art, which requires replacing fiber clamping mechanisms 20 of different specifications to clamp and fix optical fibers of different core diameters, which not only takes longer and is less efficient, but also requires preparing multiple fiber clamping mechanisms 20 of different specifications, resulting in higher costs, this embodiment does not require replacing the fiber clamping mechanism 20; only the fiber carrier 23 needs to be replaced to achieve clamping and fixing of optical fibers of different core diameters. This results in shorter replacement time, higher efficiency, and lower overall costs.

[0040] For details, please refer to Figure 4 The fiber carrier 23 can be detachably connected to the base 21 by bolts. Bolt holes 210 are provided on the base 21 and the fiber carrier 23. Bolts are inserted into the bolt holes 210 on the base 21 and the bolt holes 210 on the fiber carrier 23 to securely connect the fiber carrier 23 to the base 21.

[0041] The fiber carrier 23 and the clamping block 24 can be made of the same material, such as stainless steel. In practical applications, it has been found that using stainless steel to make the fiber carrier 23 and the clamping block 24 can make the optical fiber to be cut more firmly clamped and fixed, and long-term use will not damage the fiber carrier 23, and the fiber carrier 23 has a longer service life.

[0042] Understandably, when the fiber clamping mechanism 20 clamps the fiber to be cut, it places the fiber to be cut in the fiber carrier groove 230, and then covers the base 21 with the pressure cap 22. The pressure block 24 on the pressure cap 22 will then abut against the fiber carrier 23, and the fiber to be cut will abut against the bottom surface of the clearance groove 240 on the pressure block 24. This clamps the fiber to be cut between the groove wall of the fiber carrier groove 230 and the bottom surface of the clearance groove 240. In this way, whether the pushing device 30 drives one of the fiber clamping mechanisms 20 away from the other fiber clamping mechanism 20 to stretch the fiber to be cut, or the cutting blade 42 cuts the fiber to be cut, the fiber to be cut will not shift, that is, it will not move in the first direction X, thus ensuring the accuracy of the cut.

[0043] It should be noted that the base 21 of one of the fiber optic clamping mechanisms 20 can be connected to the output end of the pushing device 30. Specifically, a mounting plate can be connected to the output end of the pushing device 30, and the base 21 of one of the fiber optic clamping mechanisms 20 can be connected to this mounting plate. This allows one of the fiber optic clamping mechanisms 20 to move under the drive of the pushing device 30. The base 21 of the other fiber optic clamping mechanism 20 can be fixed to the top surface of the mounting platform 10 by bolts or by a snap-fit ​​connection. When one fiber optic clamping mechanism 20 moves, the other fiber optic clamping mechanism 20 remains stationary. This ensures precise cutting of the fiber optic cable while reducing the number of pushing devices 30 required.

[0044] In some embodiments, reference Figure 5The fiber-carrying groove 230 includes a first groove wall and a second groove wall connected to each other. Both the first groove wall and the second groove wall are inclined relative to the axial direction Z of the mounting rod 53, and the included angle between the first groove wall and the second groove wall ranges from 0° to 180°. That is, the fiber-carrying groove 230 is V-shaped, which ensures that the performance of the fiber to be cut is not adversely affected when it is clamped, fixed, or stretched. Moreover, the V-shape is easier to manufacture.

[0045] In some embodiments, reference Figure 4 The base 21 is rotatably connected to a slow-release rod 25 on one side in the first direction X. The slow-release rod 25 includes a first slow-release surface 251 and a second slow-release surface 252 connected to each other. The first slow-release surface 251 is an arc surface. The side of the pressure cap 22 is connected to a slow-release block 27 that cooperates with the slow-release rod 25. The surface of the slow-release block 27 facing the base 21 is flush with the surface of the pressure cap 22 facing the base 21. When the pressure cap 22 and the base 21 are in the open state, the first slow-release surface 251 faces the pressure cap 22 and protrudes from the base 21. When the pressure cap 22 and the base 21 are in the clamped state, the second slow-release surface 252 is in contact with the surface of the slow-release block 27 facing the base 21.

[0046] It should be noted that when clamping and fixing the optical fiber to be cut, the optical fiber can be placed in the fiber carrier groove 230, and then the release rod 25 can be manually rotated so that the first release surface 251 faces the pressure cap 22. At this time, the first release surface 251 protrudes from the base 21. Then, the pressure cap 22 is manually pressed down. When the release block 27 on the side of the pressure cap 22 abuts against the first release surface 251, the pressure cap 22 stops pressing down. At this time, the distance between the pressure cap 22 and the base 21 becomes very small. Then, manually... Rotate the release rod 25 so that the second release surface 252 faces the pressure cap 22. During this process, the first release surface 251 will remain in contact with the release block 27 when it rotates, so that the release block 27 slowly changes from contacting the first release surface 251 to contacting the second release surface 252. In this way, the pressure cap 22 can slowly cover the base 21, and the pressure block 24 on the pressure cap 22 will contact the fiber to be cut. This can both clamp and fix the fiber to be cut, and prevent damage to the fiber to be cut when the pressure cap 22 closes down.

[0047] Understandably, when the fiber to be cut is removed from the fiber clamping mechanism 20 after cutting, the release rod 25 can be pressed manually to rotate the first release surface 251 toward the cover 22, thereby prying the cover 22. This creates a gap between the cover 22 and the base 21, making it easier for staff to manually open the cover 22.

[0048] Further reference Figure 4To make it easier for staff to manually rotate the slow-release rod 25, an extension rod 26 can be connected to the side of the slow-release rod 25 facing away from the base 21. The length of the extension rod 26 is greater than the length of the slow-release rod 25, and the effect of rotating the slow-release rod 25 can be achieved by rotating the extension rod 26.

[0049] In some embodiments, the side of the pressure cap 22 and the base 21 away from the hinge end is connected to each other by a magnet 28 or bolts. This simplifies the connection structure between the pressure cap 22 and the base 21, making it easier for users to quickly connect the pressure cap 22 and the base 21 and improving the clamping and fixing efficiency of the optical fiber to be cut.

[0050] It should be noted that the reference Figure 4 When the side of the cover 22 and the base 21 away from the hinge end is connected to each other by a magnet 28, magnets 28 that attract each other can be provided on the side surface of the cover 22 facing the base 21 and the side surface of the base 21 facing the cover 22. When the cover 22 is closed downwards, the magnets 28 on the cover 22 will attract and connect with the magnets 28 on the base 21, so that the cover 22 and the base 21 are connected together. When the cover 22 is opened, it is only necessary to lift the cover 22 upwards to reduce the magnetic force between the magnets 28 on the cover 22 and the magnets 28 on the base 21, making it easier to open the cover 22 and take out the cut optical fiber.

[0051] Normally, the optical fiber to be cut can be pressed by the attraction of a pair of magnets 28 embedded on the cover 22 and the base 21 respectively. When the diameter of the optical fiber to be cut is large and the attraction of the magnets 28 is insufficient to press the optical fiber to be cut, the clamping screw on the cover 22 can be used to screw it into the threaded hole of the corresponding base 21, and the optical fiber to be cut can be pressed by the force generated by the thread torque.

[0052] In some embodiments, the cutting mechanism 40 further includes a force control module and a second driving device that are electrically connected to each other; the cutting blade 42 is connected to the output end of the second driving device; the force control module is used to control the second driving device to drive the cutting blade 42 to vibrate up and down with preset cutting parameters to cut the optical fiber to be cut.

[0053] The preset cutting parameters may include cutting speed and cutting pressure.

[0054] It should be noted that the second drive device can drive the cleaver 42 to vibrate up and down to cut the optical fiber. A force control module is also electrically connected to the second drive device. This module controls the second drive device to drive the cleaver 42 to vibrate up and down according to preset cutting parameters to cut the optical fiber. This effectively disperses the radial stress during the cutting of large-core-diameter optical fibers, preventing edge chipping and cracking. Actual testing after cutting showed that the end-face angle deviation of cutting 80μm-1250μm core-diameter optical fibers was consistently ≤0.5°. This means the angle between the fiber cutting surface and the fiber axis is ≤0.5° relative to 90°, meeting the subsequent fusion splicing requirements (deviation ≤0.7°) and coupling needs. No additional polishing is required, reducing processing costs.

[0055] After setting up the force control module, the cutting pressure fluctuation of the cleaver 42 when cutting the optical fiber is ≤0.02N and the cutting speed fluctuation is ≤0.05mm / s. The cutting pressure and cutting speed are coordinated to ensure the stability of the pressure and scribing speed of the cleaver 42. After actual cutting tests, it was found that after cutting the same batch (100 optical fibers with a core diameter of 400μm), the difference between the maximum and minimum roughness of the cut end face was only 1μm, and the difference in the pass rate was ≤5%, which is far better than the difference level of existing technologies. The continuous fault-free operation time of the equipment is extended, and the mean time between failures is also extended, meeting the stability requirements of industrial-grade mass production.

[0056] In some embodiments, reference Figure 6 The cutting blade 42 includes a blade 421 and a cutting edge 422 disposed on the blade 421. The cutting edge 422 includes a first cutting edge 422 surface and a second cutting edge 422 surface connected to each other. The included angle between the first cutting edge 422 surface and the second cutting edge 422 surface is 60°, the included angle between the first cutting edge 422 surface and the blade 421 is 30°, and the included angle between the second cutting edge 422 surface and the blade 421 is 30°.

[0057] It should be noted that, based on the above-mentioned setting of the force control module to control the cutting pressure and cutting speed of the cutting blade 42 so as to make the cutting blade 42 cut the optical fiber to be cut more stably, setting the blade 422 of the cutting blade 42 to the above structure can further effectively disperse the radial stress of the large core diameter optical fiber when the cutting blade 42 cuts the optical fiber to be cut, avoid edge chipping and cracking, eliminate the need for additional polishing treatment, improve the pass rate of the cut end face of the optical fiber to be cut, and reduce the cutting cost.

[0058] In some embodiments, reference Figure 7The fiber optic cleaving device also includes an auxiliary cleaving device 60, which is arranged opposite to the cleaving blade 42. The auxiliary cleaving device 60 includes a screw seat 61 and an auxiliary screw 62. The auxiliary screw 62 is rotatably inserted into the screw seat 61 and can rotate relative to the screw seat 61 to receive and cleave the fiber.

[0059] It should be noted that since the optical fiber to be cut is suspended during the cutting process, when the diameter of the optical fiber is greater than 600μm, the cleaver 42 will be subjected to radial stress and wear during cutting, which can easily lead to damage to the cleaver 42. Therefore, an auxiliary cutting device 60 can be set up. When the diameter of the optical fiber to be cut is greater than 600μm, the auxiliary screw 62 can be rotated before cutting to make it rotate to meet the optical fiber to be cut. At this time, the cutting will be carried out, and the auxiliary screw 62 will play a supporting role for the optical fiber to be cut, which helps to prevent damage to the cleaver 42 during cutting.

[0060] In some embodiments, the fiber optic cutting device further includes a circuit control board and a touch display device 70. The circuit control board is electrically connected to the pushing device 30, the image acquisition device 51, the image analysis module 52, the first driving device 41, and the force control module. The touch display device 70 is connected to the mounting platform 10 and is electrically connected to the circuit control board for displaying the images acquired by the image acquisition device 51.

[0061] It should be noted that the reference Figure 2 The touch display device 70 can display the images captured by the image acquisition device 51. For example, before the fiber to be cut, when the image acquisition device 51 captures an image of the position between the fiber to be cut and the cutting blade 42, it can be displayed on the screen of the touch display device 70, allowing the operator to visually observe whether the cutting blade 42 is in contact with the fiber. Alternatively, after the fiber to be cut, when the image acquisition device 51 captures an image of the cutting position, it can also be displayed on the screen of the touch display device 70, allowing the operator to visually observe whether the cut end face of the fiber is qualified and whether the cutting was successful.

[0062] In addition to display function, the touch display device 70 also has touch function. That is, the operator can start and reset the cutting program through touch operation on the touch display device 70, and can also set and display the stretching parameters of the optical fiber to be cut with different core diameter specifications and the preset cutting parameters of the cutting blade 42. In this way, the optical fiber cutting device of this application can adapt to the cutting work of optical fibers with different core diameter specifications, and can facilitate the operation of the operator and improve the cutting efficiency.

[0063] Specifically, the circuit control board is electrically connected to the propulsion device 30, the image acquisition device 51, the image analysis module 52, the first driving device 41, and the force control module. The working principle of the fiber optic cleaving device in this embodiment of the application for cutting the fiber to be cut can be as follows: First, the fiber to be cut is manually placed on two fiber clamping mechanisms 20 and clamped and fixed. At this time, the cutting program can be started on the touch display device 70. When the circuit control board receives the start command, it will control the propulsion device 30 to drive one of the fiber clamping mechanisms 20 away from the other fiber clamping mechanism 20 according to the preset stretching parameters, i.e., the stretching distance, so that the fiber to be cut is in a stretched state. Then, the circuit control board will control the image acquisition device 51 to acquire the position image between the fiber to be cut and the cleaver 42, and control the image analysis module 52 to analyze the image to obtain the distance between the fiber to be cut and the cleaver 42. Then, it will control the first driving device 41 to cut the fiber according to the distance between the fiber to be cut and the cleaver 42. The distance between the optical fiber and the cleaver 42 drives the cleaver 42 to approach the optical fiber to be cut until it contacts the optical fiber. Finally, a cutting command is sent to the force control module, which then controls the second drive device to drive the cleaver 42 to vibrate up and down with preset cutting parameters to scratch the optical fiber to be cut. While the optical fiber to be cut is being scratched by the cleaver 42, it is also subjected to the tension of the two optical fiber clamping mechanisms 20, so the optical fiber to be cut will automatically break during the scratching process. During the scratching process, the image acquisition device 51 will acquire images of the scratched position of the optical fiber to be cut in real time and display them on the touch display device 70. When the optical fiber to be cut breaks, the circuit control board will control the push device 30 to drive one of the optical fiber clamping mechanisms 20 to move back to its original position. Then, the image acquisition device 51 will acquire images of the broken position of the optical fiber to be cut and display them on the touch display device 70 to determine whether the cut surface of the optical fiber to be cut is qualified.

[0064] The embodiments of this application can adapt to the cutting of optical fibers with different core diameters, and can automatically adjust the position between the cutting blade 42 and the optical fiber to be cut, and automatically cut the optical fiber to be cut. After the cutting is completed, it is possible to judge whether the cutting surface is qualified without changing the equipment. This not only saves manpower, but also makes the success rate of single effective cutting of the optical fiber to be cut higher, the cutting surface smoother, and the cutting quality better.

[0065] In some embodiments, reference Figure 2 The top surface of the mounting platform 10 is provided with several operation buttons 80, and all of the operation buttons 80 are electrically connected to the circuit control board.

[0066] It is understood that the operation button 80 may include a start button, a reset button, and a power switch. Pressing the start button will initiate the cutting program of the fiber optic cutting device of this embodiment. The start button and the touch start key on the touch display device 70 form a redundant design, providing operators with multiple operation triggering methods to ensure reliable start of the cutting process. When the fiber optic cutting device of this embodiment malfunctions, pressing the reset button will restore the components of the fiber optic cutting device to their initial state, ensuring the stability and safety of subsequent operation of the fiber optic cutting device.

[0067] In some embodiments, reference Figure 2 and Figure 7 A scale 90 is provided between the two fiber clamping mechanisms 20, and the length direction of the scale 90 is parallel to the axis of the fiber to be cut.

[0068] It should be noted that the scale 90 is set between the two fiber clamping mechanisms 20. This way, for fibers with specific cutting length requirements, the cutting length can be measured according to the scale 90 when clamping and fixing the fiber to be cut, so that the cutting blade 42 is aligned with the cutting point of the fiber to be cut. The cutting point here refers to any point within a certain length range on the fiber to be cut.

[0069] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A fiber optic cleaving device, characterized in that, include: Mounting station (10); Two fiber clamping mechanisms (20) are spaced apart on the mounting platform (10) along a first direction. The fiber clamping mechanisms (20) are used to clamp and fix the fiber to be cut. The first direction is parallel to the axis of the fiber to be cut. A propulsion device (30) is disposed on the mounting platform (10), and one of the optical fiber clamping mechanisms (20) is mounted on the propulsion device (30). The propulsion device (30) is used to drive one of the optical fiber clamping mechanisms (20) to move away from the other optical fiber clamping mechanism (20) in the first direction. A cutting mechanism (40) is disposed on the mounting platform (10). The cutting mechanism (40) is located between the two optical fiber clamping mechanisms (20). The cutting mechanism (40) includes a first driving device (41) and a cutting blade (42) for cutting the optical fiber to be cut. The positioning mechanism (50) includes an image acquisition device (51) and an image analysis module (52) electrically connected to each other. The image acquisition device (51) is located above the cutting device and is used to acquire position images of the optical fiber to be cut and the cutting blade (42). The image analysis module (52) is used to analyze the position images to obtain the distance between the optical fiber to be cut and the cutting blade (42). The first driving device (41) is used to drive the cutting blade (42) away from or close to the optical fiber to be cut.

2. The fiber optic cleaving device according to claim 1, characterized in that, The positioning mechanism (50) further includes: Mounting rod (53) is connected to the mounting platform (10); The first adjustment frame (54) includes an adjustment block (541), a first bracket (542), and a second bracket (543). The adjustment block (541) is detachably connected to the mounting rod (53). The first bracket (542) is slidably connected to the adjustment block (541) along the first direction. The second bracket (543) is slidably connected to the first bracket (542) along the second direction. The image acquisition device (51) and the image analysis module (52) are connected to the second bracket (543). The first direction, the second direction, and the axial direction of the mounting rod (53) are all perpendicular to each other.

3. The fiber optic cleaving device according to claim 2, characterized in that, The positioning mechanism (50) further includes: The second adjustment bracket (55) is detachably connected to the mounting rod (53); An image magnification adjustment device (56) is connected to the second adjustment frame (55). The image magnification adjustment device (56) is located below the image acquisition device (51) and is used to adjust the magnification of the image acquired by the image acquisition device (51).

4. The fiber optic cleaving apparatus according to any one of claims 2-3, characterized in that, The fiber clamping mechanism (20) includes a base (21) and a cover (22). The base (21) is disposed on the top surface of the mounting platform (10), and the cover (22) is hinged to the base (21). The base (21) is detachably connected to a fiber carrier (23), the fiber carrier (23) is provided with a fiber carrier groove (230) for accommodating the fiber to be cut, the pressure cover (22) is provided with a pressure block (24) that matches the fiber carrier groove (230), and the pressure block (24) is provided with a clearance groove (240).

5. The fiber optic cleaving device according to claim 4, characterized in that, The fiber carrier groove (230) includes a first groove wall and a second groove wall connected to each other. Both the first groove wall and the second groove wall are inclined relative to the axial direction of the mounting rod (53), and the included angle between the first groove wall and the second groove wall is in the range of 0°-180°.

6. The fiber optic cleaving device according to claim 4, characterized in that, The base (21) is rotatably connected to a slow-release rod (25) on one side of the first direction. The slow-release rod (25) includes a first slow-release surface (251) and a second slow-release surface (252) that are connected to each other. The first slow-release surface (251) is an arc surface. The side of the pressure cap (22) is connected to a slow-release block (27) that cooperates with the slow-release rod (25). The surface of the slow-release block (27) facing the base (21) is flush with the surface of the pressure cap (22) facing the base (21). When the cap (22) and the base (21) are in the open state, the first slow-release surface (251) faces the cap (22) and protrudes from the base (21). When the cap (22) and the base (21) are in the clamped state, the second slow-release surface (252) is in contact with the surface of the slow-release block (27) facing the base (21).

7. The fiber optic cleaving apparatus according to claim 4, characterized in that, The pressure cap (22) and the base (21) are connected to each other on the side away from the hinge end by a magnet (28) or a bolt.

8. The fiber optic cleaving apparatus according to any one of claims 1-3 and 5-7, characterized in that, The cutting mechanism (40) also includes a force control module and a second drive device that are electrically connected to each other; The cutting blade (42) is connected to the output end of the second driving device; The force control module is used to control the second drive device to drive the cutting blade (42) to vibrate up and down with preset cutting parameters to cut the optical fiber to be cut.

9. The fiber optic cleaving apparatus according to any one of claims 1-3 and 5-7, characterized in that, The cutting blade (42) includes a blade (421) and a cutting edge (422) disposed on the blade (421), the cutting edge (422) including a first cutting edge (422) face and a second cutting edge (422) face connected to each other; The angle between the first cutting edge (422) face and the second cutting edge (422) face is 60°, the angle between the first cutting edge (422) face and the blade (421) is 30°, and the angle between the second cutting edge (422) face and the blade (421) is 30°.

10. The fiber optic cleaving apparatus according to any one of claims 1-3 and 5-7, characterized in that, Also includes: An auxiliary cutting device (60) is disposed opposite to the cutting blade (42); The auxiliary cutting device (60) includes a screw seat (61) and an auxiliary screw (62). The auxiliary screw (62) is rotatably inserted into the screw seat (61). The auxiliary screw (62) can rotate relative to the screw seat (61) to abut against the optical fiber to be cut.

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