A fiber propulsion mechanism for fiber optic splicing

Abstract

This invention discloses an optical fiber propulsion mechanism for optical fiber fusion splicing, relating to the technical field of optical fiber fusion splicing devices. It includes an optical fiber fusion splicer body and an outer shell protecting internal components. An electrode rod is housed within the outer shell, with a set of bases on each side of the electrode rod. A clamping mechanism on the platform adaptively fixes the insulation layer of the optical fiber and drives the optical fiber towards the electrode rod. The clamping mechanism includes a shaped frame that moves freely in the horizontal direction, with clamping components for fixing the optical fiber on the shaped frame. This invention, by setting the clamping mechanism, achieves rapid coarse and precise adjustment of the optical fiber position. Driven by the shaped frame components, the shaped frame can quickly push the optical fiber towards the electrode rod, completing the coarse adjustment process. Subsequently, through fine adjustment using a first electric push rod, the optical fiber is precisely adjusted to the set splicing position. This combination of coarse and fine adjustment significantly improves the efficiency of optical fiber fusion splicing.

Description

Technical Field

[0001] This invention relates to the field of optical fiber fusion splicing equipment technology, specifically to an optical fiber propulsion mechanism for optical fiber fusion splicing. Background Technology

[0002] In the field of optical fiber manufacturing, optical fiber fusion splicing technology is a key link in the construction and maintenance of optical cables. The optical fiber fusion splicer melts the end faces of two optical fibers through arc discharge and uses a high-precision motion mechanism to smoothly advance the optical fibers and fuse them into one, thereby realizing the coupling of the optical fiber mode field.

[0003] Chinese Patent (Announcement No.: CN115097571B) describes a solution that includes a mounting frame and two symmetrically arranged fiber optic clamps on the mounting frame. The two clamps are used to hold two fibers to be fused. The solution also includes an XY alignment mechanism. Each clamp has a Z-axis advancing mechanism underneath it, used to synchronously drive the two clamps closer together. The XY alignment mechanism includes an alignment drive assembly, a support base mounted on and movably connected to the output end of the alignment drive assembly, and an elastic member. The Z-axis advancing mechanism is fixedly mounted on the support base, and the deformable end of the elastic member is fixedly connected to the support base. The support base undergoes an XY plane position shift under the drive of the alignment drive assembly. This invention, through the Z-axis advancing mechanism, can advance the fiber optic clamps holding the fibers to be fused as a whole, meeting the welding requirements of fields with precision requirements.

[0004] Existing fiber optic manufacturing equipment typically uses multi-sized V-groove structures for its fiber optic clamps, which can be adapted to different diameter fibers by rotating or changing inserts. However, during fiber optic splicing, the fiber end face needs to be precisely placed between the electrode rod and the V-groove, which requires high precision in fiber placement. Furthermore, the fiber propulsion mechanism in the aforementioned patent operates independently of the clamp, making it difficult to adaptively clamp fiber optic cables of different diameters and quickly adjust the two sets of fibers to a splicing position close to the electrode rod. Therefore, the subsequent fine-tuning time during splicing is long, and the requirements for fiber placement are high, thus limiting further improvement in fiber optic splicing efficiency. Therefore, this invention proposes a fiber propulsion mechanism for fiber optic splicing. Summary of the Invention

[0005] The purpose of this invention is to provide an optical fiber propulsion mechanism for optical fiber fusion splicing, which has the advantage of improving the efficiency of optical fiber fusion splicing and solves the problem that the high requirements for the placement of optical fibers limit the further improvement of optical fiber fusion splicing efficiency.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an optical fiber propulsion mechanism for optical fiber fusion splicing, comprising an optical fiber fusion splicer body and an outer shell thereon for protecting internal components, an electrode rod is provided inside the outer shell and a set of bases are respectively provided on both sides of the electrode rod, a platform for supporting optical fiber wires is provided on the base, and a clamping mechanism on the platform adaptively fixes the insulation layer of the optical fiber wires and drives the optical fiber wires to move toward the electrode rods.

[0007] The clamping and shifting mechanism includes a shaped frame base that moves freely in the horizontal direction. A horizontal sliding groove is provided on the base for the shaped frame base to slide and connect. The shaped frame base is provided with a clamping assembly for fixing the optical fiber. The clamping assembly includes two sets of horizontal seats that move synchronously towards or away from each other in the horizontal direction. Each set of horizontal seats is provided with a set of clamping plates above it for contacting and connecting with the insulation layer of the optical fiber. The horizontal seats are provided with a fixed shifting assembly that limits the horizontal and vertical movement distance of the clamping plates according to the diameter of the optical fiber.

[0008] The platform is provided with a horizontal component that adjusts the horizontal distance between the irregular frame and the electrode rod and drives the clamping component to run at the final position of the horizontal movement of the irregular frame.

[0009] The base is provided with a lower slide block driven by a first electric actuator, and the irregular frame base and the lower slide block move horizontally in sync. The base is provided with a groove for the lower slide block to slide horizontally.

[0010] Preferably, the clamping assembly further includes a bidirectional lead screw that rotates on a fixed axis on a shaped frame seat. The bidirectional lead screw is threaded with two sets of internally threaded cylinders with opposite screw directions. The two sets of horizontal seats rotate on a fixed axis on a set of internally threaded cylinders. The horizontal seats are provided with corresponding seats that move horizontally in sync with them. The horizontal seats are provided with a groove for the corresponding seats to slide horizontally and longitudinally. The corresponding seats pass through the table surface and are fixedly connected to the clamping plate.

[0011] Preferably, the positioning component includes a positioning plate disposed on a horizontal seat, and the horizontal seat has a receiving groove for sliding connection of the positioning plate, and the internal threaded cylinder has a positioning groove corresponding to the position of the positioning plate for use with it.

[0012] The receiving groove is equipped with a return spring, and the two ends of the return spring are fixedly connected to the horizontal seat and the locking plate, respectively.

[0013] The card plate is fixedly connected to a positioning pin at one end facing the corresponding seat, and the corresponding seat has a V-shaped positioning groove for the positioning pin to slide.

[0014] Preferably, the carding plate is initially positioned in the carding slot, a guide post is fixedly connected to the irregular frame base, and a circular hole is provided on the horizontal base for the guide post to slide through.

[0015] Preferably, the irregular frame seat has a transverse shaft that rotates on a fixed axis, and a worm gear is fixedly sleeved on the transverse shaft. Both ends of the worm gear are in sliding contact with the inner wall of the irregular frame seat. The worm gear is meshed with a worm wheel, and the worm wheel is fixedly sleeved on a bidirectional lead screw.

[0016] Preferably, the parallel component includes a cavity cylinder fixedly connected to the lower slide block, the lower slide block is provided with an upper slide block, and the lower slide block is provided with a groove for the upper slide block to slide horizontally.

[0017] The cavity cylinder is provided with a central column coaxial with it, and the lower slide is fixedly connected to the side of the central column facing the central column with an adjustment pin, and the central column is provided with a threaded adjustment groove for the adjustment pin to slide.

[0018] The central column and the transverse axis are coaxially fixed together, and a shaft protrusion is fixedly connected to the outer circumferential surface of the central column facing the transverse axis. Two sets of annular grooves for sliding connection of the shaft protrusion are provided on the cavity cylinder, and an inner shaft groove for sliding of the shaft protrusion and connected to both sets of annular grooves is provided.

[0019] Preferably, the shaft protrusion is initially positioned at the junction of a set of annular grooves and an inner shaft groove, and the adjusting pin is positioned at one end of the threaded adjusting groove near the transverse shaft.

[0020] Preferably, the lower slide is provided with a V-shaped rocker arm, and the middle part of the V-shaped rocker arm rotates on the lower slide with a fixed axis. The two ends of the V-shaped rocker arm are respectively fixedly connected with a relief pin and a limit pin, and the upper slide is provided with a relief groove for the relief pin to slide.

[0021] The base is provided with a side seat that can move freely in the horizontal longitudinal direction driven by the second electric actuator, and the base is provided with a longitudinal slide groove for sliding connection of the side seat, and the side seat is provided with a limiting slide groove for sliding connection of the limiting pin.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0023] 1. This invention achieves rapid coarse and precise adjustment of the optical fiber position by setting a clamping and shifting mechanism. The irregular frame can quickly push the optical fiber towards the electrode rod under the drive of the flat component to complete the coarse adjustment process. Then, the optical fiber is precisely adjusted to the set fusion splicing position by the first electric push rod. This combination of coarse and fine adjustment significantly improves the efficiency of optical fiber fusion splicing.

[0024] 2. This invention, by setting up a clamping assembly, can achieve synchronous opposite or back-to-back movement of two sets of clamping plates through the cooperation of a bidirectional lead screw and an internal threaded cylinder, thereby adapting to optical fiber insulation layers of different diameters. The positioning plate and reset spring design in the positioning assembly further ensure that the clamping plates will not cause excessive compression to the optical fiber when clamping it, avoiding damage to the optical fiber. This adaptive clamping function does not require replacement of the V-groove or manual adjustment of the clamp, significantly improving the versatility and ease of operation of optical fiber splicing. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the component containing the clamping plate of the present invention;

[0027] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle;

[0028] Figure 4 This is a schematic diagram of the component containing the irregularly shaped frame base of the present invention;

[0029] Figure 5 This is a schematic diagram of the component containing the horizontal support of the present invention;

[0030] Figure 6 For the present invention Figure 5 Enlarged view at point B in the middle;

[0031] Figure 7 This is a schematic diagram of the component containing the cavity cylinder of the present invention;

[0032] Figure 8 This is a schematic diagram of the component containing the upper sliding block of the present invention;

[0033] Figure 9 For the present invention Figure 8 Enlarged view of point C in the middle.

[0034] In the diagram: 1. Platform; 2. Electrode rod; 3. Clamping plate; 4. Irregular frame seat; 5. Bidirectional lead screw; 6. Internal threaded cylinder; 7. Horizontal seat; 8. Guide post; 9. Positioning plate; 10. Positioning groove; 11. Return spring; 12. Corresponding seat; 13. Positioning pin; 14. V-shaped positioning groove; 15. Worm; 16. Worm wheel; 17. Transverse shaft; 18. Lower slide; 19. Hollow cylinder; 20. Center column; 21. Shaft protrusion; 22. Annular groove; 23. Inner shaft groove; 24. Upper slide; 25. Adjusting pin; 26. Threaded adjusting groove; 27. Relief pin; 28. Relief groove; 29. ​​V-shaped rocker arm; 30. Side seat; 31. Limiting pin; 32. Limiting groove. Detailed Implementation

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

[0036] Please see Figures 1 to 9 The present invention provides a technical solution: an optical fiber propulsion mechanism for optical fiber fusion splicing, including an optical fiber fusion splicer body and an outer shell thereon for protecting internal components. An electrode rod 2 is provided inside the outer shell and a set of bases are respectively provided on both sides of the electrode rod 2. A platform 1 for supporting optical fiber is provided on the base. A clamping mechanism on the platform 1 adaptively fixes the insulation layer of the optical fiber and drives the optical fiber to move toward the electrode rod 2.

[0037] The clamping and shifting mechanism includes a shaped frame 4 that moves freely in the horizontal direction. A horizontal sliding groove is provided on the base for the shaped frame 4 to slide. The shaped frame 4 is provided with a clamping assembly for fixing the optical fiber. The clamping assembly includes two sets of horizontal seats 7 that move synchronously towards or away from each other in the horizontal direction. Each set of horizontal seats 7 is provided with a set of clamping plates 3 above it for contacting and connecting with the insulation layer of the optical fiber. The horizontal seats 7 are provided with a fixed shifting assembly that limits the horizontal longitudinal movement distance of the clamping plates 3 according to the diameter of the optical fiber.

[0038] The platform 1 is provided with a horizontal component that adjusts the horizontal distance between the irregular frame 4 and the electrode rod 2 and drives the irregular frame 4 to drive the clamping component to run at the final position of the horizontal movement.

[0039] The base is provided with a lower slide block 18 driven by a first electric actuator, and the irregular frame base 4 and the lower slide block 18 move horizontally in sync. The base is provided with a groove for the lower slide block 18 to slide horizontally.

[0040] like Figure 1 and Figure 2 As shown, when splicing optical fibers, two sets of optical fibers can be placed on a base and positioned between two sets of clamping plates 3. Driven by the clamping components, the two sets of clamping plates 3 can move synchronously towards or away from each other in the horizontal direction until both sets of clamping plates 3 can contact and connect with the insulation layer in the optical fiber, thereby completing the synchronous fixing process of the two sets of optical fibers.

[0041] Meanwhile, due to the difference in the diameter of the optical fiber during the splicing process, under the drive of the positioning component, after both sets of clamping plates 3 have been pressed into contact with the insulation layer in the optical fiber, the horizontal distance between the two clamping plates 3 will not continue to change as the subsequent clamping components continue to operate. This achieves adaptive clamping of the optical fiber without excessively squeezing it and causing damage.

[0042] The clamping and positioning components work together to allow the fixture to adapt to optical fiber insulation layers of different diameters. This eliminates the need to replace the V-groove to fix the optical fiber, thereby improving versatility and reducing operational complexity caused by changes in the size of the optical fiber.

[0043] Meanwhile, the clamping assembly is set on the irregular frame 4. Driven by the horizontal component, the irregular frame 4 can move freely in the horizontal direction toward the electrode rod 2. After the clamping assembly completes the adaptive fixation of the optical fiber, it can quickly drive the irregular frame 4 to carry the optical fiber toward the electrode rod 2, so as to shorten the distance between the two sets of optical fibers and the electrode rod 2. This achieves the purpose of fixing the optical fiber first and then quickly adjusting its position. The horizontal movement of the irregular frame 4 driven by the horizontal component is the coarse adjustment process of the optical fiber position. Its purpose is to quickly bring the two sets of optical fibers closer to the position of the electrode rod 2, so as to reduce the workload of subsequent fine adjustment and thus improve the fusion splicing efficiency.

[0044] Meanwhile, when fine-tuning the position of the optical fiber, the lower slide 18 is driven to move by the first electric push rod fixed on the base, thereby further changing the horizontal position of the irregular frame 4. According to the distance between the optical fiber and the electrode rod 2 at one end, the movement distance of the lower slide 18 in the horizontal direction is dynamically adjusted so that the end face of the optical fiber can reach the set fusion splice position.

[0045] It should be noted that when the irregular frame 4 is in a position away from the electrode rod 2, the operation of the aligning component can first drive the clamping component to clamp and fix the optical fiber, and after the fixation is completed, the irregular frame 4 drives the optical fiber to move rapidly toward the electrode rod 2, thereby completing the coarse adjustment process. Subsequently, the operation of the first electric actuator enables the irregular frame 4 to move further until the subsequent fine adjustment process is completed. At the same time, after the fusion splicing is completed, by driving the aligning component to move the irregular frame 4 to a position close to the electrode rod 2, the clamping component can be driven to release the fused optical fiber, and after the wire is released, it returns to the initial position, thereby facilitating the subsequent post-processing of the fused optical fiber.

[0046] In one preferred embodiment, the clamping assembly further includes a bidirectional lead screw 5 that rotates on a fixed axis on a non-circular frame 4. The bidirectional lead screw 5 is threaded with two sets of internally threaded cylinders 6 with opposite screw directions. Two sets of horizontal seats 7 rotate on a fixed axis on a set of internally threaded cylinders 6. The horizontal seats 7 are provided with a corresponding seat 12 that moves horizontally with it. The horizontal seats 7 are provided with a groove 2 for the corresponding seat 12 to slide horizontally and longitudinally. The corresponding seat 12 passes through the table surface 1 and is fixedly connected to the clamping plate 3.

[0047] like Figure 2 , Figure 4 and Figure 5 As shown, when the bidirectional lead screw 5 rotates freely in the vertical direction, it can drive the two sets of internal thread cylinders 6 to rotate in opposite directions through the two sets of opposite threaded parts on its screw. The internal thread cylinder 6 is provided with a horizontal seat 7, which can drive the two sets of horizontal seats 7 to move synchronously towards or away from each other in the horizontal direction.

[0048] At the same time, the corresponding seat 12 set on the horizontal seat 7 moves synchronously with it, and the corresponding seat 12 is fixedly connected to the clamping plate 3. Thus, when the two sets of horizontal seats 7 move synchronously, they can drive the two sets of clamping plates 3 to move closer to the optical fiber, and finally drive the two sets of clamping plates 3 to clamp and fix the optical fiber.

[0049] Based on the clamping component embodiment, the fixed displacement component includes a positioning plate 9 disposed on the horizontal seat 7, and the horizontal seat 7 is provided with a receiving groove for sliding connection of the positioning plate 9, and the internal threaded cylinder 6 is provided with a positioning groove 10 corresponding to the position of the positioning plate 9 for use therewith.

[0050] The receiving groove is provided with a return spring 11, and the two ends of the return spring 11 are fixedly connected to the horizontal seat 7 and the locking plate 9 respectively.

[0051] The card plate 9 is fixedly connected to a positioning pin 13 at one end facing the co-positioning seat 12, and the co-positioning seat 12 is provided with a V-shaped positioning groove 14 for the positioning pin 13 to slide.

[0052] The positioning plate 9 is initially positioned in the positioning groove 10. A guide post 8 is fixedly connected to the irregular frame base 4, and a circular hole is provided on the horizontal base 7 for the guide post 8 to slide through.

[0053] The irregular frame 4 has a fixed axis for rotation of a transverse shaft 17. A worm gear 15 is fixedly sleeved on the transverse shaft 17. Both ends of the worm gear 15 are in sliding contact with the inner wall of the irregular frame 4. The worm gear 15 is meshed with a worm wheel 16, which is fixedly sleeved on the bidirectional lead screw 5.

[0054] like Figures 2-6As shown, when the transverse axis 17 moves in the horizontal direction, it can drive the irregular frame 4 to move synchronously with it, thereby driving the clamping plate 3 set on the irregular frame 4 and the optical fiber wire that is clamped and fixed to move synchronously, so as to achieve the purpose of adjusting the distance between the optical fiber wire and the electrode rod 2.

[0055] When the transverse shaft 17 rotates in the vertical direction, the worm gear 15 and worm wheel 16 drive the bidirectional lead screw 5 to rotate on the irregular frame seat 4. The transverse seat 7 is slidably sleeved on the guide post 8. In the initial state, the positioning plate 9 is in the positioning groove 10 opened on the internal threaded cylinder 6. Under the restriction of the positioning plate 9, when the bidirectional lead screw 5 rotates, the internal threaded cylinder 6 cannot rotate synchronously with the bidirectional lead screw 5. Instead, it drives the transverse seat 7 to move in the horizontal longitudinal direction as the bidirectional lead screw 5 rotates, thereby changing the distance between the two sets of clamping plates 3.

[0056] At the same time, when both sets of clamping plates 3 are in contact with the optical fiber, the clamping plates 3 cannot continue to move horizontally due to the obstruction of the optical fiber. Since the positioning plate 9 has not disengaged from the positioning groove 10, the horizontal position seat 7 can continue to move a certain distance in the horizontal longitudinal direction as the bidirectional screw 5 rotates, thereby driving the horizontal position seat 7 and the corresponding position seat 12 to move relative to each other.

[0057] At this time, the positioning pin 13 on the carding plate 9 slides on the V-shaped positioning groove 14 opened on the co-positioning seat 12, thereby changing the position of the carding plate 9 in the receiving groove through the positioning pin 13. As the positioning pin 13 slides on the V-shaped positioning groove 14, it causes the reset spring 11 to undergo compression deformation, thereby driving the carding plate 9 to disengage from the carding groove 10.

[0058] As the bidirectional lead screw 5 continues to rotate, the locking plate 9 has disengaged from the locking groove 10. Consequently, the internal threaded cylinder 6 is no longer restricted by the horizontal seat 7. Thus, the internal threaded cylinder 6 will rotate synchronously with the bidirectional lead screw 5. Therefore, the horizontal position of the horizontal seat 7 will not change with the rotation of the bidirectional lead screw 5. This ensures that the horizontal longitudinal position of the clamping plate 3 will not change when clamping and fixing the optical fiber, thereby ensuring that the optical fiber is fixed without excessively squeezing it. It can also adapt to optical fibers of different diameters, reducing the operational complexity caused by changes in the size of the optical fiber.

[0059] Based on the fixed displacement component embodiment, the horizontal component includes a cavity cylinder 19 fixedly connected to the lower slide block 18, an upper slide block 24 is provided on the lower slide block 18, and a groove 3 is provided on the lower slide block 18 for the upper slide block 24 to slide horizontally.

[0060] The cavity cylinder 19 is provided with a central column 20 coaxial with it, and the lower slide block 18 is fixedly connected to the side of the central column 20 with an adjustment pin 25, and the central column 20 is provided with a threaded adjustment groove 26 for the adjustment pin 25 to slide.

[0061] The central column 20 and the transverse shaft 17 are fixed coaxially, and a shaft protrusion 21 is fixedly connected to the outer circumferential surface of the central column 20 facing the transverse shaft 17. Two sets of annular grooves 22 for sliding connection of the shaft protrusion 21 are provided on the cavity cylinder 19, and an inner shaft groove 23 for sliding of the shaft protrusion 21 and connected to both sets of annular grooves 22 is provided.

[0062] In its initial state, the shaft protrusion 21 is located at the junction of a set of annular grooves 22 and inner shaft grooves 23, and the adjusting pin 25 is located at one end of the threaded adjusting groove 26 near the transverse shaft 17.

[0063] like Figure 1 , Figure 7 and Figure 8 As shown, when the upper slide block 24 moves away from the cavity cylinder 19, the shaft protrusion 21 is located at the junction of a set of annular grooves 22 and inner shaft grooves 23 near the central column 20. Consequently, the central column 20 cannot move in the horizontal direction due to the restriction of the set of annular grooves 22. At this time, the adjusting pin 25 can be driven to slide on the threaded adjusting groove 26, thereby driving the central column 20 and the transverse shaft 17 to rotate in the vertical direction. The rotation process of the transverse shaft 17 drives the clamping assembly to operate to clamp and fix the optical fiber. After the rotation of the central column 20 is completed, its shaft protrusion 21 is still located at the junction of the annular groove 22 and the inner shaft groove 23.

[0064] After the optical fiber is clamped and fixed, when the upper slide 24 moves toward the cavity cylinder 19, since the shaft protrusion 21 corresponds to the inner shaft groove 23, the central column 20 can move horizontally synchronously with the upper slide 24 as the upper slide 24 moves. This drives the irregular frame 4 and the optical fiber that has been clamped and fixed on it to move toward the electrode rod 2 through the transverse shaft 17 until the shaft protrusion 21 moves to a position of a set of annular grooves 22 away from the central column 20, thereby completing the adaptive clamping and coarse adjustment process of the optical fiber.

[0065] Subsequently, the lower slide 18 and the upper slide 24 above it are driven by the first electric actuator to move horizontally synchronously until the optical fiber moves to the set splicing position, thereby completing the fine adjustment process of the optical fiber position. After the two sets of optical fibers are spliced, the upper slide 24 continues to slide on the lower slide 18 and move towards the cavity cylinder 19. At this time, since the shaft protrusion 21 is in a set of annular grooves 22 far away from the central column 20, the central column 20 cannot move in the horizontal direction. Thus, the continued movement of the upper slide 24 can drive the adjusting pin 25 to slide on the threaded adjusting groove 26, thereby driving the central column 20 and the transverse shaft 17 to rotate in opposite directions, so as to realize the release process of the spliced ​​optical fiber, thereby avoiding subsequent processing operations, such as the subsequent return, heating and cooling of the heat shrink tubing.

[0066] At the same time, after the clamping assembly releases the optical fiber, it drives the upper slide block 24 away from the cavity cylinder 19, thereby driving the shaft protrusion 21 to slide on the inner shaft groove 23, and at this time the shaft protrusion 21 returns to the initial position.

[0067] Based on the parallel component embodiment, the lower slide 18 is provided with a V-shaped rocker arm 29, and the middle part of the V-shaped rocker arm 29 rotates on the lower slide 18 with a fixed axis. The first and last ends of the V-shaped rocker arm 29 are respectively fixedly connected with a relief pin 27 and a limit pin 31. The upper slide 24 is provided with a relief groove 28 for the relief pin 27 to slide and connect.

[0068] The base is provided with a side seat 30 that is driven by a second electric actuator to move freely in the horizontal longitudinal direction. The base is provided with a longitudinal slide groove for the side seat 30 to slide, and the side seat 30 is provided with a limiting slide groove 32 for the limiting pin 31 to slide.

[0069] like Figure 1 , Figure 2 , Figure 8 and Figure 9 As shown, the second electric actuator drives the side seat 30 to move in the horizontal longitudinal direction, thereby driving the V-shaped swing arm 29 to deflect through the limiting slide groove 32 on it. When the side seat 30 moves away from or away from the lower slide 18, the deflection of the V-shaped swing arm 29 drives the upper slide 24 to slide on the lower slide 18. Then, the second electric actuator drives the movement direction and amount of the side seat 30 in the horizontal longitudinal direction, thereby dynamically changing the sliding direction and sliding displacement of the upper slide 24 on the lower slide 18, thus sequentially achieving the purpose of clamping and fixing the optical fiber, coarsely adjusting the position of the optical fiber, and releasing the optical fiber.

[0070] Meanwhile, driven by the first electric actuator, the lower slide 18 can move horizontally. Since the V-shaped swing arm 29 rotates on the lower slide 18 with a fixed axis, and the lower slide 18 is provided with a torsion spring that drives the V-shaped swing arm 29 back to its initial deflection state, this torsion spring is an existing device and a technical means well known to those skilled in the art, so it is not shown in the figure. Therefore, when the first electric actuator drives the lower slide 18 to move horizontally, it can drive the lower slide 18 and the upper slide 24 to move horizontally synchronously, and then drive the irregular frame seat 4 to move toward the electrode rod 2 through the central column 20 and the transverse axis 17, thereby realizing the fine adjustment process of the position of the optical fiber.

[0071] It should be noted that, in order to clearly demonstrate the core technical features of the present invention, the outer shell and the base are not shown in the accompanying drawings. The main function of the base is to support the components on it, and its specific size and shape need to be compatible with the internal components of the existing fiber optic fusion splicer body, and therefore it is not shown in the drawings.

[0072] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fiber optic propulsion mechanism for fiber optic splicing, comprising a fiber optic splicer body and an outer shell thereon for protecting internal components, wherein an electrode rod (2) is provided inside the outer shell and a set of bases are respectively provided on both sides of the electrode rod (2), and a platform (1) for supporting the optical fiber is provided on the base, characterized in that: The clamping mechanism on the platform (1) adaptively fixes the insulation layer of the optical fiber and drives the optical fiber to move toward the electrode rod (2). The clamping mechanism includes a shaped frame (4) that moves freely in the horizontal direction. A transverse sliding groove is provided on the base for the shaped frame (4) to slide. The shaped frame (4) is provided with a clamping assembly for fixing the optical fiber. The clamping assembly includes two sets of horizontal seats (7) that move synchronously in opposite directions in the horizontal direction. Each set of horizontal seats (7) is provided with a set of clamping plates (3) above it for contacting and connecting with the insulation layer of the optical fiber. The horizontal seats (7) are provided with a fixed displacement assembly that limits the horizontal longitudinal movement distance of the clamping plates (3) according to the diameter of the optical fiber. The platform (1) is provided with a horizontal component that adjusts the horizontal distance between the irregular frame seat (4) and the electrode rod (2) and drives the irregular frame seat (4) to drive the clamping component to run at the end position of the horizontal movement. The base is provided with a lower slide (18) driven by a first electric push rod, and the irregular frame base (4) and the lower slide (18) move horizontally in sync. The base is provided with a groove for the lower slide (18) to slide horizontally. The clamping assembly also includes a bidirectional lead screw (5) that rotates on a fixed axis on a non-circular frame (4). The bidirectional lead screw (5) is threaded with two sets of internally threaded cylinders (6) with opposite screw directions. The two sets of horizontal seats (7) rotate on a fixed axis on a set of internally threaded cylinders (6). The horizontal seats (7) are provided with a corresponding seat (12) that moves horizontally with it. The horizontal seats (7) are provided with a groove for the corresponding seat (12) to slide horizontally and longitudinally. The corresponding seat (12) passes through the table surface (1) and is fixedly connected to the clamping plate (3). The fixed displacement component includes a positioning plate (9) disposed on a horizontal seat (7), and the horizontal seat (7) is provided with a receiving groove for sliding connection of the positioning plate (9), and the internal threaded cylinder (6) is provided with a positioning groove (10) corresponding to the position of the positioning plate (9) for use with it. The receiving groove is provided with a return spring (11), and the two ends of the return spring (11) are fixedly connected to the horizontal seat (7) and the card plate (9) respectively. The card plate (9) is fixedly connected to a positioning pin (13) at one end facing the co-positioning seat (12), and the co-positioning seat (12) is provided with a V-shaped positioning groove (14) for the positioning pin (13) to slide. The carding plate (9) is initially positioned in the carding slot (10). A guide post (8) is fixedly connected to the irregular frame base (4), and a circular hole is provided on the horizontal base (7) for the guide post (8) to slide through.

2. The optical fiber propulsion mechanism for optical fiber fusion splicing according to claim 1, characterized in that: The irregular frame (4) has a fixed axis for rotation of a transverse shaft (17), and a worm (15) is fixedly sleeved on the transverse shaft (17). Both ends of the worm (15) are in sliding contact with the inner wall of the irregular frame (4). The worm (15) is meshed with a worm wheel (16), which is fixedly sleeved on a bidirectional lead screw (5).

3. The optical fiber propulsion mechanism for optical fiber fusion splicing according to claim 2, characterized in that: The parallel component includes a cavity cylinder (19) fixedly connected to the lower slide (18), an upper slide (24) is provided on the lower slide (18), and a groove is provided on the lower slide (18) for the upper slide (24) to slide horizontally. The cavity cylinder (19) is provided with a central column (20) coaxial with it, and the lower slide (18) is fixedly connected to the side of the central column (20) with an adjustment pin (25), and the central column (20) is provided with a threaded adjustment groove (26) for the adjustment pin (25) to slide. The central column (20) and the transverse shaft (17) are fixed coaxially, and a shaft protrusion (21) is fixedly connected to the outer circumferential surface of the central column (20) facing the transverse shaft (17). Two sets of annular grooves (22) for sliding connection of the shaft protrusion (21) are provided on the cavity cylinder (19), and an inner shaft groove (23) for sliding of the shaft protrusion (21) and connected to both sets of annular grooves (22) is provided.

4. The optical fiber propulsion mechanism for optical fiber fusion splicing according to claim 3, characterized in that: The shaft protrusion (21) is initially located at the junction of a set of annular grooves (22) and inner shaft grooves (23), and the adjusting pin (25) is located at one end of the threaded adjusting groove (26) near the transverse shaft (17).

5. The optical fiber propulsion mechanism for optical fiber fusion splicing according to claim 3, characterized in that: The lower slide (18) is provided with a V-shaped rocker arm (29), and the middle part of the V-shaped rocker arm (29) rotates on the lower slide (18) with a fixed axis. The two ends of the V-shaped rocker arm (29) are respectively fixedly connected with a relief pin (27) and a limit pin (31). The upper slide (24) is provided with a relief groove (28) for the relief pin (27) to slide. The base is provided with a side seat (30) that is driven by a second electric push rod and moves freely in the horizontal longitudinal direction. The base is provided with a longitudinal slide groove for the side seat (30) to slide, and the side seat (30) is provided with a limiting slide groove (32) for the limiting pin (31) to slide.

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