A fusion splicing device for single-mode optical fibers

Abstract

This utility model relates to the field of fusion splicing device technology, specifically a fusion splicing device for single-mode optical fiber. It includes a base, a displacement component located on the top of the base near the left side, and a first conveying component, a cutting component, and a first positioning component arranged sequentially from left to right on the top of the displacement component. A second conveying component is located on the top of the base near the right side, and a second positioning component is located to the left of the second conveying component. A fusion arc generator is located between the second positioning component and the first positioning component. This single-mode optical fiber fusion splicing device provides stable support to the bottom of the single-mode optical fiber through a first arc-shaped guide plate. Combined with the precise downward cutting of the cutter at the rectangular clearance hole, it effectively prevents bending deformation caused by the flexibility of the optical fiber during the cutting process, ensuring a flat cut end face and providing a high-quality mating surface for subsequent fusion splicing, significantly improving fusion splicing reliability.

Description

Technical Field

[0001] This utility model relates to the field of fusion splicing device technology, specifically a fusion splicing device for single-mode optical fibers. Background Technology

[0002] Single-mode fiber is a type of optical fiber with a small core diameter, capable of supporting the propagation of a single optical mode. This results in lower loss and higher bandwidth for long-distance transmission, making it widely used in communications, data centers, and network infrastructure. Compared to multimode fiber, single-mode fiber offers higher signal clarity and longer transmission distances. Single-mode fiber requires fusion splicing during manufacturing, necessitating the use of fusion splicing equipment to ensure high-quality fiber connections.

[0003] Utility model patent CN209117910U discloses a fusion splicing device for single-mode optical fibers, including a conveyor box and a spiral conveyor rod. The conveyor box has an optical fiber inlet. This utility model employs spiral conveyor rods distributed on the upper and lower sides of the optical fiber inlet, with the distance between the spiral conveyor rods equal to the diameter of the single-mode optical fiber. The spiral conveyor rods are driven to rotate by a micro servo motor. When the single-mode optical fiber enters from one end of the conveyor box, it is automatically conveyed by the spiral conveyor rods into the conveyor box and exits from the other end of the clamping and pushing box, completing the automatic fiber threading process. This eliminates the hassle of manual fiber threading, improving work efficiency. Furthermore, after splicing, the micro servo motor rotates in the reverse direction, driving the spiral conveyor rods to rotate in the reverse direction, which can convey the spliced ​​single-mode optical fiber out of the device, eliminating the hassle of manual unloading by operators, making it more convenient and faster.

[0004] In practical applications, the aforementioned existing technologies typically employ a combination of a laser meter and a cleaver to achieve precise fiber optic cutting. When the single-mode fiber protrudes one centimeter from the clamping and pushing box, a third cylinder extends, pushing the cleaver to cut off the protruding one-centimeter fiber tip, thus increasing the splicing area. However, due to the inherent flexibility of single-mode fiber, when its bottom lacks support, the fiber may bend downwards after contact with the cleaver, resulting in an uneven cut surface and affecting splicing quality. To address this issue, we propose a single-mode fiber splicing device that, through optimized design and the addition of a support structure, ensures the flatness of the single-mode fiber after cutting. Utility Model Content

[0005] The purpose of this invention is to provide a fusion splicing device for single-mode optical fibers to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A fusion splicing device for single-mode optical fibers includes a base. A displacement component is provided on the top of the base and near the left side. After the cutting component cuts off the end of the single-mode optical fiber, the first conveying component conveys the single-mode optical fiber to the right until the cut surface of the single-mode optical fiber protrudes one centimeter from the right end of the first arc-shaped guide plate. At this time, the displacement component drives the first conveying component, the cutting component and the first positioning component to move to the right at the same time, so that the right end of the left single-mode optical fiber is attached to the left end of the right single-mode optical fiber. After that, the fusion arc generator performs fusion splicing operation on the connection end of the two single-mode optical fibers.

[0008] The top of the displacement component is provided with a first conveying component, a cutting component and a first positioning component from left to right. The first conveying component is used to convey single-mode optical fiber to the right, the cutting component is used to cut single-mode optical fiber, and the first positioning component is used to fix the position of single-mode optical fiber near the end to ensure that the cut surfaces of the two single-mode optical fibers can be connected.

[0009] A second conveying component is located at the top of the base and near the right side. The second conveying component is used to output the spliced ​​single-mode fiber to the right. A second positioning component is located to the left of the second conveying component. The second positioning component is used to fix the single-mode fiber to be spliced ​​on the right. The single-mode fiber on the right is generated by shifting the left single-mode fiber to the right after splicing. The left end of the left single-mode fiber is also cut off by a cutter to ensure that the left end of the right single-mode fiber is flat, which is conducive to splicing with the left single-mode fiber. A splicing arc generator is provided between the second positioning component and the first positioning component for splicing operations.

[0010] Preferably, the displacement component includes a U-shaped bracket bolted to the top of the base, an electric telescopic rod on the right side of the inner wall of the U-shaped bracket, and a slider at the movable end of the electric telescopic rod, which moves left and right by means of the electric telescopic rod.

[0011] Preferably, a rectangular groove is provided at the top of the inner wall of the U-shaped bracket, and the top of the slider passes through the rectangular groove and is fixedly connected to a movable seat, so that the slider drives the movable seat to move synchronously.

[0012] Preferably, the first conveying assembly includes a first U-shaped fixing plate that is bolted to the top of the movable seat. A first active conveying roller is rotatably connected between the front and rear sides of the inner wall of the first U-shaped fixing plate and near the bottom. A first motor for driving the first active conveying roller to rotate is provided on the front side of the first U-shaped fixing plate. The first active conveying roller is driven to rotate by the first motor.

[0013] A first electric cylinder is provided at the center of the top of the inner wall of the first U-shaped fixed plate. A first U-shaped moving plate is provided at the end of the movable rod of the first electric cylinder. A first driven conveying roller adapted to the first active conveying roller is rotatably connected between the front and rear sides of the inner wall of the first U-shaped moving plate. The first electric cylinder drives the first U-shaped moving plate to move up and down, thereby adjusting the distance between the first driven conveying roller and the first active conveying roller to adjust the tightness of the single-mode optical fiber and ensure stable delivery.

[0014] Preferably, the cutting assembly includes a first arc-shaped guide plate, and the conveying surfaces of the first arc-shaped guide plate, the second arc-shaped guide plate, and the second active conveying roller are located on the same horizontal plane to ensure that the single-mode optical fiber is conveyed in a straight line. A rectangular clearance hole is provided in the middle of the bottom of the first arc-shaped guide plate for the cutter to pass through. The first arc-shaped guide plate plays a supporting and guiding role for the single-mode optical fiber. Two first brackets are provided at the bottom of the first arc-shaped guide plate, which are arranged symmetrically from left to right. The bottom of the first brackets is installed on the top of the movable base by bolts.

[0015] A T-shaped top plate is provided above the first arc-shaped guide plate. The left side of the T-shaped top plate is bolted to the right side of the first U-shaped fixing plate. A hydraulic cylinder is provided at the top of the T-shaped top plate. The movable rod end of the hydraulic cylinder passes through the top of the T-shaped top plate and is connected to a cutter. The cutter is located directly above the rectangular clearance hole. The hydraulic cylinder drives the cutter to move up and down, and the cutter cuts the single-mode optical fiber. A laser meter is provided at the bottom of the T-shaped top plate and near the right side of the cutter to detect the moving distance of the single-mode optical fiber.

[0016] When the right end of the single-mode fiber is exactly in the detection area of ​​the laser meter, if the detection area of ​​the laser meter is one centimeter away from the rectangular clearance hole, then the cutting operation is performed when the right end of the single-mode fiber moves one centimeter to the right from the rectangular clearance hole. The hydraulic cylinder drives the cutter to move downward to cut the right end of the single-mode fiber. Then the movable rod of the hydraulic cylinder retracts, and the first motor drives the first active conveying roller to rotate, driving the single-mode fiber to continue to move to the right. At this time, the laser meter calculates the distance the single-mode fiber moves to the right until the cut surface of the right end of the single-mode fiber moves one centimeter away from the first arc-shaped guide plate. For example, if the rectangular clearance hole is ten centimeters away from the right end of the first arc-shaped guide plate, then the laser meter calculates that the single-mode fiber has moved eleven centimeters to the right. At this time, the controller controls the first motor to stop rotating, and at the same time the second electric cylinder drives the first arc-shaped pressure plate to move downward to position the single-mode fiber near the right end to avoid misalignment during splicing. Then the movable rod of the electric telescopic rod retracts, driving the slider and the moving seat to move to the right, so that the right end of the left single-mode fiber is in contact with the left end of the right single-mode fiber.

[0017] The laser meter counter calculates the distance between the left end and the rectangular clearance hole based on the total length of the single-mode fiber and the length shifted to the right. When the distance is one centimeter, the first motor stops, and the hydraulic cylinder drives the cutter to move downward to cut the left end of the single-mode fiber.

[0018] Preferably, the first positioning component includes a second U-shaped fixing plate bolted to the top of the movable base. The right side of the T-shaped top plate is bolted to the left side of the second U-shaped fixing plate. A second electric cylinder is provided on the top of the second U-shaped fixing plate. The movable rod end of the second electric cylinder passes through the top of the second U-shaped fixing plate and is connected to a first arc-shaped pressure plate. The right end of the first arc-shaped guide plate extends to the bottom of the first arc-shaped pressure plate. The second electric cylinder drives the first arc-shaped pressure plate to move up and down. After the first arc-shaped pressure plate moves down, it can clamp and position the single-mode optical fiber. The clamping force is set by the controller. It is only necessary to keep the single-mode optical fiber in position. This is existing technology and will not be described in detail here.

[0019] Preferably, the second positioning component includes a third U-shaped fixing plate that is bolted to the top of the base. A splicing box is placed between the third U-shaped fixing plate and the U-shaped bracket. When the right and left ends of the single-mode fiber are cut, a single-mode fiber with a length of one centimeter will be pushed to the right. The right end of the cut single-mode fiber is pushed to the right by the left single-mode fiber, and the left end of the cut single-mode fiber is pushed to the right by the subsequent single-mode fiber. Here, the right end of the second single-mode fiber will abut against the left end of the remaining cut single-mode fiber. Therefore, the laser meter only performs the cutting operation when the right end of the single-mode fiber moves one centimeter to the right for the first calculation. In the second calculation, it is necessary to calculate the subsequent single-mode fiber moves two centimeters to the right before performing the cutting operation. The cut single-mode fiber will fall down from the right end of the first arc-shaped guide plate into the splicing box.

[0020] The fusion arc generator is mounted on the rear side of the left side of the third U-shaped fixing plate via a mounting base. The top of the third U-shaped fixing plate is equipped with a third electric cylinder. The movable rod end of the third electric cylinder passes through the top of the third U-shaped fixing plate and is connected to a second arc-shaped pressure plate. The third electric cylinder drives the second arc-shaped pressure plate to move up and down, thereby clamping and fixing the right single-mode optical fiber to be fused near the left end.

[0021] The top left side of the third U-shaped fixing plate is provided with a fixing protrusion, and the bottom of the fixing protrusion is provided with a photoelectric sensor for detecting the left end position of the right single-mode optical fiber. When the right second conveying component conveys the single-mode optical fiber to the right, if the photoelectric sensor detects the left end of the right single-mode optical fiber, the second motor stops working, and the controller controls the movable rod of the third electric cylinder to extend for clamping and positioning. The second positioning component also includes a second arc-shaped guide plate. The left end of the second arc-shaped guide plate is located directly below the second arc-shaped pressure plate. The bottom of the second arc-shaped guide plate is provided with a second bracket, and the bottom end of the second bracket is installed on the top of the base by bolts.

[0022] Preferably, the second conveying assembly includes a fourth U-shaped fixing plate bolted to the top of the base. A second active conveying roller is rotatably connected between the front and rear sides of the inner wall of the fourth U-shaped fixing plate and at the lower middle part. A second motor for driving the second active conveying roller to rotate is provided on the front side of the fourth U-shaped fixing plate. The second active conveying roller is driven to rotate by the second motor.

[0023] A fourth electric cylinder is provided at the center of the top of the inner wall of the fourth U-shaped fixed plate. A second U-shaped moving plate is provided at the end of the movable rod of the fourth electric cylinder. A second driven conveying roller adapted to the second active conveying roller is rotatably connected between the front and rear sides of the inner wall of the second U-shaped moving plate. The second U-shaped moving plate is driven to move up and down by the fourth electric cylinder, thereby adjusting the distance between the second active conveying roller and the second driven conveying roller to adjust the tightness of the single-mode optical fiber and ensure stable delivery.

[0024] Compared with the prior art, the beneficial effects of this utility model are:

[0025] 1. The fusion splicing device for this single-mode fiber provides stable support to the bottom of the single-mode fiber through the first arc-shaped guide plate. With the precise downward cutting of the cutter at the rectangular clearance hole, it effectively prevents bending and deformation caused by the flexibility of the fiber during the cutting process, ensuring that the cut end face is flat and providing a high-quality mating surface for subsequent fusion splicing, thus significantly improving the reliability of fusion splicing.

[0026] 2. The fusion splicing device for this single-mode optical fiber uses a laser meter to detect the optical fiber movement distance in real time. Combined with the controller's linkage control of the motor and electric cylinder, it can accurately calculate the optical fiber transmission length and automatically stop, reducing human intervention errors. At the same time, the first positioning component and the second positioning component clamp and fix the optical fiber end through the arc-shaped pressure plate to ensure that the two ends of the optical fiber are accurately aligned during fusion splicing, avoiding misalignment or offset.

[0027] 3. The fusion splicing device for this single-mode optical fiber has a displacement component that drives the conveying, cutting, and positioning components to move synchronously, so that the cut optical fiber end faces can be quickly bonded together, and the fusion splicing is completed in real time through the fusion arc generator, shortening the process interval time; the conveying components on the left and right sides and the positioning components form a continuous operation process, supporting batch fusion splicing needs and significantly improving production efficiency. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall first-view structure of this utility model;

[0029] Figure 2 This is a schematic diagram of the overall second-view structure of this utility model;

[0030] Figure 3 This is one of the partial structural schematic diagrams of this utility model;

[0031] Figure 4 This is the second partial structural schematic diagram of the present utility model;

[0032] Figure 5 This is a schematic diagram of the structure of the second positioning component in this utility model;

[0033] Figure 6 This is a schematic diagram of the structure of the second conveying component in this utility model;

[0034] In the diagram: 100, base; 200, displacement assembly; 210, U-shaped bracket; 211, rectangular slide rail; 220, electric telescopic rod; 230, slider; 240, movable seat; 300, first conveying assembly; 310, first U-shaped fixed plate; 320, first active conveying roller; 330, first motor; 340, first electric cylinder; 350, first U-shaped moving plate; 360, first driven conveying roller; 400, cutting assembly; 410, first arc-shaped guide plate; 411, rectangular clearance hole; 412, first bracket; 420, T-shaped top plate; 430, hydraulic cylinder; 440, cutter; 450, laser meter counter; 500, the... 510. Positioning component; 520. Second U-shaped fixing plate; 530. First arc-shaped pressure plate; 600. Second positioning component; 610. Third U-shaped fixing plate; 611. Fixing protrusion plate; 620. Third electric cylinder; 630. Second arc-shaped pressure plate; 640. Second arc-shaped guide plate; 641. Second bracket; 650. Photoelectric sensor; 700. Second conveying component; 710. Fourth U-shaped fixing plate; 720. Second active conveying roller; 730. Second motor; 740. Fourth electric cylinder; 750. Second U-shaped moving plate; 760. Second driven conveying roller; 800. Welding arc generator; 900. Receiving box. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0037] Please see Figures 1-6 This utility model provides a technical solution:

[0038] A fusion splicing device for single-mode optical fibers includes a base 100. A displacement component 200 is provided on the top of the base 100 and near the left side. After the cutting component 400 cuts off the end of the single-mode optical fiber, the first conveying component 300 conveys the single-mode optical fiber to the right until the cut surface of the single-mode optical fiber protrudes one centimeter from the right end of the first arc-shaped guide plate 410. At this time, the displacement component 200 drives the first conveying component 300, the cutting component 400 and the first positioning component 500 to move to the right at the same time, so that the right end of the left single-mode optical fiber is attached to the left end of the right single-mode optical fiber. Then, the fusion arc generator 800 performs fusion splicing operation on the connection ends of the two single-mode optical fibers.

[0039] The top of the displacement component 200 is provided with a first conveying component 300, a cutting component 400 and a first positioning component 500 from left to right. The first conveying component 300 is used to convey single-mode optical fiber to the right, the cutting component 400 is used to cut single-mode optical fiber, and the first positioning component 500 is used to fix the position of the single-mode optical fiber near the end to ensure that the cut surfaces of the two single-mode optical fibers can be aligned.

[0040] A second conveying component 700 is located at the top of the base 100 and near the right side. The second conveying component 700 is used to output the spliced ​​single-mode fiber to the right. A second positioning component 600 is located to the left of the second conveying component 700. The second positioning component 600 is used to fix the single-mode fiber to be spliced ​​on the right. The single-mode fiber on the right is generated by shifting the left single-mode fiber to the right after splicing. The left end of the left single-mode fiber is also cut by the cutter 440 to ensure that the left end of the right single-mode fiber is flat, which is conducive to splicing with the left single-mode fiber. A splicing arc generator 800 is located between the second positioning component 600 and the first positioning component 500 for splicing operations.

[0041] In this embodiment, the displacement component 200 includes a U-shaped bracket 210 that is bolted to the top of the base 100. An electric telescopic rod 220 is provided on the right side of the inner wall of the U-shaped bracket 210. A slider 230 is provided at the movable end of the electric telescopic rod 220. The slider 230 is moved left and right by the electric telescopic rod 220.

[0042] Specifically, a rectangular groove 211 is provided on the top of the inner wall of the U-shaped bracket 210. The top of the slider 230 passes through the rectangular groove 211 and is fixedly connected to the movable seat 240. The slider 230 drives the movable seat 240 to move synchronously.

[0043] Furthermore, the first conveying assembly 300 includes a first U-shaped fixing plate 310 bolted to the top of the movable seat 240. A first active conveying roller 320 is rotatably connected between the front and rear sides of the inner wall of the first U-shaped fixing plate 310 and near the bottom. A first motor 330 is provided on the front side of the first U-shaped fixing plate 310 for driving the first active conveying roller 320 to rotate. The first active conveying roller 320 is driven to rotate by the first motor 330.

[0044] A first electric cylinder 340 is provided at the middle of the top of the inner wall of the first U-shaped fixed plate 310. A first U-shaped moving plate 350 is provided at the end of the movable rod of the first electric cylinder 340. A first driven conveying roller 360 adapted to the first active conveying roller 320 is rotatably connected between the front and rear sides of the inner wall of the first U-shaped moving plate 350. The first electric cylinder 340 drives the first U-shaped moving plate 350 to move up and down, thereby adjusting the distance between the first driven conveying roller 360 and the first active conveying roller 320 to adjust the tightness of the single-mode optical fiber and ensure stable conveying.

[0045] Furthermore, the cutting assembly 400 includes a first arc-shaped guide plate 410, a first active conveying roller 320, and the conveying surfaces of the first arc-shaped guide plate 410, the second arc-shaped guide plate 640, and the second active conveying roller 720 are located on the same horizontal plane to ensure that the single-mode optical fiber is conveyed in a straight line. A rectangular clearance hole 411 is provided in the middle of the bottom of the first arc-shaped guide plate 410 for the cutter 440 to pass through. The first arc-shaped guide plate 410 provides support and guidance for the single-mode optical fiber. Two first brackets 412 are provided at the bottom of the first arc-shaped guide plate 410, which are arranged symmetrically on the left and right. The bottom of the first brackets 412 is installed on the top of the movable base 240 by bolts.

[0046] A T-shaped top plate 420 is provided above the first arc-shaped guide plate 410. The left side of the T-shaped top plate 420 is bolted to the right side of the first U-shaped fixing plate 310. A hydraulic cylinder 430 is provided at the top of the T-shaped top plate 420. The end of the movable rod of the hydraulic cylinder 430 passes through the top of the T-shaped top plate 420 and is connected to a cutter 440. The cutter 440 is located directly above the rectangular clearance hole 411. The hydraulic cylinder 430 drives the cutter 440 to move up and down. The cutter 440 cuts the single-mode optical fiber. A laser meter 450 is provided at the bottom of the T-shaped top plate 420 and near the right side of the cutter 440 to detect the moving distance of the single-mode optical fiber.

[0047] When the right end of the single-mode fiber is exactly within the detection area of ​​the laser meter 450, if the detection area of ​​the laser meter 450 is one centimeter away from the rectangular clearance hole 411, then the cutting operation is performed when the right end of the single-mode fiber moves one centimeter to the right from the rectangular clearance hole 411. The hydraulic cylinder 430 drives the cutter 440 to move downwards to cut the right end of the single-mode fiber. Then, the movable rod of the hydraulic cylinder 430 retracts, and the first motor 330 drives the first active conveying roller 320 to rotate, causing the single-mode fiber to continue moving to the right. At this time, the laser meter 450 calculates the distance the single-mode fiber has moved to the right until the single-mode fiber... The right end of the cut surface moves out of the first arc-shaped guide plate 410 by one centimeter. For example, if the rectangular clearance hole 411 is 10 centimeters away from the right end of the first arc-shaped guide plate 410, then the laser meter 450 needs to calculate that the single-mode fiber moves 11 centimeters to the right. At this time, the controller controls the first motor 330 to stop rotating, and at the same time, the second electric cylinder 520 drives the first arc-shaped pressure plate 530 to move down to position the single-mode fiber near the right end to avoid misalignment during splicing. Then the movable rod of the electric telescopic rod 220 retracts, driving the slider 230 and the moving seat 240 to move to the right, so that the right end of the left single-mode fiber is in contact with the left end of the right single-mode fiber.

[0048] The laser meter 450 calculates the distance between the left end and the rectangular clearance hole 411 based on the total length of the single-mode fiber and the length shifted to the right. When the distance is one centimeter, the first motor 330 stops, and the hydraulic cylinder 430 drives the cutter 440 to move downward to cut the left end of the single-mode fiber.

[0049] Furthermore, the first positioning component 500 includes a second U-shaped fixing plate 510 bolted to the top of the movable base 240. The right side of the T-shaped top plate 420 is bolted to the left side of the second U-shaped fixing plate 510. A second electric cylinder 520 is provided on the top of the second U-shaped fixing plate 510. The movable rod end of the second electric cylinder 520 passes through the top of the second U-shaped fixing plate 510 and is connected to a first arc-shaped pressure plate 530. The right end of the first arc-shaped guide plate 410 extends directly below the first arc-shaped pressure plate 530. The second electric cylinder 520 drives the first arc-shaped pressure plate 530 to move up and down. After the first arc-shaped pressure plate 530 moves down, it can clamp and position the single-mode optical fiber. The clamping force is set by the controller. It is only necessary to keep the single-mode optical fiber in position. This is existing technology and will not be described in detail here.

[0050] Furthermore, the second positioning component 600 includes a third U-shaped fixing plate 610 bolted to the top of the base 100. A splice box 900 is placed between the third U-shaped fixing plate 610 and the U-shaped bracket 210. When the right and left ends of the single-mode fiber are cut, a single-mode fiber with a length of one centimeter will be pushed to the right. The right end of the cut single-mode fiber is pushed to the right by the left single-mode fiber, and the left end of the cut single-mode fiber is pushed to the right by the subsequent single-mode fiber. Here, the right end of the second single-mode fiber will abut against the left end of the remaining cut single-mode fiber. Therefore, the laser meter 450 only performs the cutting operation when the right end of the single-mode fiber moves one centimeter to the right for the first calculation. In the second calculation, it is necessary to calculate the subsequent single-mode fiber moves two centimeters to the right before performing the cutting operation. The cut single-mode fiber will fall down from the right end of the first arc-shaped guide plate 410 into the splice box 900.

[0051] The fusion arc generator 800 is mounted on the rear side of the left side of the third U-shaped fixing plate 610 via a mounting base. The top of the third U-shaped fixing plate 610 is equipped with a third electric cylinder 620. The movable rod end of the third electric cylinder 620 passes through the top of the third U-shaped fixing plate 610 and is connected to a second arc-shaped pressure plate 630. The third electric cylinder 620 drives the second arc-shaped pressure plate 630 to move up and down, thereby clamping and fixing the right single-mode optical fiber to be fused near the left end.

[0052] The top left side of the third U-shaped fixing plate 610 is provided with a fixing protrusion 611, and the bottom of the fixing protrusion 611 is provided with a photoelectric sensor 650 for detecting the left end position of the right single-mode optical fiber. When the right second conveying component 700 conveys the single-mode optical fiber to the right, if the photoelectric sensor 650 detects the left end of the right single-mode optical fiber, the second motor 730 stops working, and the controller controls the movable rod of the third electric cylinder 620 to extend for clamping and positioning. The second positioning component 600 also includes a second arc-shaped guide plate 640. The left end of the second arc-shaped guide plate 640 is located directly below the second arc-shaped pressure plate 630. The bottom of the second arc-shaped guide plate 640 is provided with a second bracket 641, and the bottom end of the second bracket 641 is bolted to the top of the base 100.

[0053] Furthermore, the second conveying assembly 700 includes a fourth U-shaped fixing plate 710 bolted to the top of the base 100. A second active conveying roller 720 is rotatably connected between the front and rear sides of the inner wall of the fourth U-shaped fixing plate 710 and located at the lower middle part. A second motor 730 is provided on the front side of the fourth U-shaped fixing plate 710 for driving the second active conveying roller 720 to rotate. The second active conveying roller 720 is driven to rotate by the second motor 730.

[0054] A fourth electric cylinder 740 is provided at the middle of the top of the inner wall of the fourth U-shaped fixed plate 710. A second U-shaped moving plate 750 is provided at the end of the movable rod of the fourth electric cylinder 740. A second driven conveying roller 760 adapted to the second active conveying roller 720 is rotatably connected between the front and rear sides of the inner wall of the second U-shaped moving plate 750. The second U-shaped moving plate 750 is moved up and down by the fourth electric cylinder 740, thereby adjusting the distance between the second active conveying roller 720 and the second driven conveying roller 760 to adjust the tightness of the single-mode optical fiber and ensure stable conveying.

[0055] It should be noted that the electric telescopic rod 220, the first motor 330, the first electric cylinder 340, the laser meter 450, the second electric cylinder 520, the third electric cylinder 620, the photoelectric sensor 650, the second motor 730, the fourth electric cylinder 740, and the welding arc generator 800 in this utility model are all connected to an external power supply and controller. The hydraulic cylinder 430 is connected to an external hydraulic drive system. All components are general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. The specific connection method should refer to the working sequence of each electrical component in the above working principle to complete the electrical connection. The detailed connection method is a well-known technology in the field. The above mainly introduces the working principle and process, and the electrical control will not be described again.

[0056] In this embodiment, when using the single-mode fiber fusion splicing device, the single-mode fiber is first placed in the first conveying component 300 on the left side of the base 100. The first motor 330 drives the first active conveying roller 320 to rotate, while the first electric cylinder 340 adjusts the distance between the first driven conveying roller 360 and the first active conveying roller 320 to clamp the fiber and convey it to the right. When the optical fiber passes through the first arc-shaped guide plate 410 of the cutting assembly 400, the laser meter 450 detects its displacement length in real time. When the right end of the optical fiber reaches the preset position, the hydraulic cylinder 430 drives the cutter 440 to press down, completing the cut through the rectangular clearance hole 411. Then, the first conveying assembly 300 continues to convey the single-mode optical fiber to the right until the right end of the single-mode optical fiber protrudes one centimeter beyond the right end of the first arc-shaped guide plate 410. Subsequently, the electric telescopic rod 220 of the displacement assembly 200 drives the slider 230 and the moving seat 240 to the right, causing the first conveying assembly 300, the cutting assembly 400, and the first positioning assembly 500 to move synchronously, so that the right end of the left optical fiber and the left end of the right optical fiber are at the fusion arc generator 80. After the optical fiber is aligned at position 0, the photoelectric sensor 650 of the second positioning component 600 detects the position of the right optical fiber, and the third electric cylinder 620 drives the second arc-shaped pressure plate 630 to press down and fix the right optical fiber. At the same time, the second electric cylinder 520 of the first positioning component 500 drives the first arc-shaped pressure plate 530 to fix the left optical fiber. After the fusion is completed, the second motor 730 of the second conveying component 700 drives the second active conveying roller 720, which, together with the second driven conveying roller 760 adjusted by the fourth electric cylinder 740, outputs the fused optical fiber to the right. Waste is collected through the receiving box 900. The entire process is coordinated by the controller through the linkage of the laser meter 450, motor, electric cylinder and sensor to realize automated cutting, positioning and fusion.

[0057] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A device for splicing single mode optical fibres comprising a base (100) characterised in that: A displacement component (200) is provided on the top of the base (100) and near the left side. From left to right, the top of the displacement component (200) is provided with a first conveying component (300), a cutting component (400) and a first positioning component (500). A second conveying component (700) is provided on the top of the base (100) and near the right side. A second positioning component (600) is provided to the left of the second conveying component (700). A welding arc generator (800) is provided between the second positioning component (600) and the first positioning component (500).

2. The apparatus for splicing a single mode optical fiber according to claim 1, wherein: The displacement assembly (200) includes a U-shaped bracket (210) bolted to the top of the base (100), an electric telescopic rod (220) is provided on the right side of the inner wall of the U-shaped bracket (210), and a slider (230) is provided at the movable end of the electric telescopic rod (220).

3. The apparatus of claim 2, wherein: The top of the inner wall of the U-shaped bracket (210) is provided with a rectangular groove (211), and the top of the slider (230) passes through the rectangular groove (211) and is fixedly connected to a movable seat (240).

4. The apparatus of claim 3, wherein: The first conveying assembly (300) includes a first U-shaped fixing plate (310) bolted to the top of the movable seat (240). A first active conveying roller (320) is rotatably connected between the front and rear sides of the inner wall of the first U-shaped fixing plate (310) and near the bottom. A first motor (330) for driving the first active conveying roller (320) to rotate is provided on the front side of the first U-shaped fixing plate (310). A first electric cylinder (340) is provided in the middle of the top of the inner wall of the first U-shaped fixing plate (310). A first U-shaped moving plate (350) is provided at the end of the movable rod of the first electric cylinder (340). A first driven conveying roller (360) adapted to the first active conveying roller (320) is rotatably connected between the front and rear sides of the inner wall of the first U-shaped moving plate (350).

5. The apparatus of claim 4, wherein: The cutting assembly (400) includes a first arc-shaped guide plate (410), with a rectangular clearance hole (411) at the center of the bottom of the first arc-shaped guide plate (410). Two first supports (412) are symmetrically arranged at the bottom of the first arc-shaped guide plate (410). The bottom of the first supports (412) is bolted to the top of the movable base (240). A T-shaped top plate (420) is located above the first arc-shaped guide plate (410). The left side of 20) is bolted to the right side of the first U-shaped fixing plate (310). The top of the T-shaped top plate (420) is provided with a hydraulic cylinder (430). The end of the movable rod of the hydraulic cylinder (430) passes through the top of the T-shaped top plate (420) and is connected to a cutter (440). The cutter (440) is located directly above the rectangular clearance hole (411). The bottom of the T-shaped top plate (420) and near the right side of the cutter (440) is provided with a laser meter counter (450).

6. The apparatus of claim 5, wherein: The first positioning component (500) includes a second U-shaped fixing plate (510) bolted to the top of the movable seat (240). The right side of the T-shaped top plate (420) is bolted to the left side of the second U-shaped fixing plate (510). A second electric cylinder (520) is provided on the top of the second U-shaped fixing plate (510). The movable rod end of the second electric cylinder (520) passes through the top of the second U-shaped fixing plate (510) and is connected to a first arc-shaped pressure plate (530). The right end of the first arc-shaped guide plate (410) extends to the bottom of the first arc-shaped pressure plate (530).

7. The fusion splicing device for single-mode optical fibers according to claim 2, characterized in that: The second positioning assembly (600) includes a third U-shaped fixing plate (610) bolted to the top of the base (100). A receiving box (900) is placed between the third U-shaped fixing plate (610) and the U-shaped bracket (210). The welding arc generator (800) is mounted on the rear side of the left side of the third U-shaped fixing plate (610) via a mounting base. A third electric cylinder (620) is provided on the top of the third U-shaped fixing plate (610). The movable rod end of the third electric cylinder (620) passes through the top of the third U-shaped fixing plate (610) and is connected to the first... The second arc-shaped pressure plate (630) has a fixed protrusion (611) on the top left side of the third U-shaped fixing plate (610), and a photoelectric sensor (650) is provided at the bottom of the fixed protrusion (611). The second positioning component (600) also includes a second arc-shaped guide plate (640). The left end of the second arc-shaped guide plate (640) is located directly below the second arc-shaped pressure plate (630). The bottom of the second arc-shaped guide plate (640) is provided with a second bracket (641), and the bottom end of the second bracket (641) is installed on the top of the base (100) by bolts.

8. The apparatus of claim 1, wherein: The second conveying assembly (700) includes a fourth U-shaped fixing plate (710) bolted to the top of the base (100). A second active conveying roller (720) is rotatably connected between the front and rear sides of the inner wall of the fourth U-shaped fixing plate (710) and at the lower middle position. A second motor (730) for driving the second active conveying roller (720) to rotate is provided on the front side of the fourth U-shaped fixing plate (710). A fourth electric cylinder (740) is provided at the middle of the top of the inner wall of the fourth U-shaped fixing plate (710). A second U-shaped moving plate (750) is provided at the end of the movable rod of the fourth electric cylinder (740). A second driven conveying roller (760) adapted to the second active conveying roller (720) is rotatably connected between the front and rear sides of the inner wall of the second U-shaped moving plate (750).

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