Optical fiber feed mechanism for optical fiber welding

Abstract

The invention discloses an optical fiber feed mechanism for optical fiber fusion splicing, and relates to the technical field of optical fiber fusion splicing devices, the optical fiber feed mechanism comprises an optical fiber fusion splicer body and an outer shell arranged on the optical fiber fusion splicer body and used for protecting internal parts, an electrode bar is arranged in the outer shell, and two sides of the electrode bar are respectively provided with a group of bases; the clamping and moving mechanism is arranged on the table board, is used for adaptively fixing an insulating layer of an optical fiber wire and driving the optical fiber wire to move towards the electrode bar, and comprises a special-shaped frame seat which freely moves in the horizontal transverse direction, and a clamping assembly used for fixing the optical fiber wire is arranged on the special-shaped frame seat. Rapid coarse adjustment and accurate adjustment of the position of the optical fiber wire are achieved, the special-shaped frame base can be driven by the flat position assembly to rapidly push the optical fiber wire to the direction of the electrode bar to complete the coarse adjustment process, and then the optical fiber wire is accurately adjusted to the set welding position through fine adjustment of the first electric push rod. The mode of combining the coarse tuning and the fine tuning significantly improves the efficiency of optical fiber fusion splicing.

Description

Technical Field

[0001] The invention relates to the technical field of optical fiber fusion splicing devices, in particular to an optical fiber advancing mechanism for optical fiber fusion splicing. Background Art

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

[0003] Chinese patent (Announcement No.: CN115097571B), the solution specifically includes a mounting frame and two optical fiber clamps symmetrically arranged on the mounting frame, the two optical fiber clamps are respectively used to clamp two optical fibers to be fused, and also includes an XY core adjustment mechanism, a Z-direction propulsion mechanism is provided below the two optical fiber clamps, which is used to synchronously drive the two optical fiber clamps to approach each other, the XY core adjustment mechanism includes a core adjustment drive assembly and a support seat and an elastic member installed at the output end of the core adjustment drive assembly and movably connected to the output end of the core adjustment drive assembly, the Z-direction propulsion mechanism is fixedly installed on the support seat, the deformation end of the elastic member is fixedly connected to the support seat, and the support seat generates a position offset in the XY plane under the drive of the core adjustment drive assembly. The present invention can use the Z-direction propulsion mechanism to integrally propel the optical fiber clamp holding the optical fiber to be fused as a whole, so as to meet the welding needs in the field with precision requirements.

[0004] The fiber optic clamp of the fusion splicing device in the existing optical fiber manufacturing equipment usually adopts a multi-size V-groove structure, which can adapt to optical fibers of different diameters by rotating or replacing plug-ins. However, during the fiber fusion splicing process, the optical fiber end face needs to be accurately placed between the electrode rod and the V-groove, which requires a high accuracy in the placement of the optical fiber. In addition, the optical fiber advancement mechanism and the clamp in the above-mentioned patent operate independently, making it difficult to adaptively clamp optical fiber wires of different diameters and quickly adjust the two groups of optical fibers to the fusion position close to the electrode rod. Therefore, during the fusion splicing process, the subsequent fine-tuning time is relatively long, and the placement position of the optical fiber is required to be relatively high, which in turn limits the further improvement of the fiber fusion splicing efficiency. Therefore, the present invention proposes a fiber optic advancement mechanism for optical fiber fusion splicing. Summary of the invention

[0005] The purpose of the present invention is to provide an optical fiber advancing 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 placement position of the optical fiber is relatively high, thereby limiting the further improvement of the optical fiber fusion splicing efficiency.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an optical fiber advancing mechanism for optical fiber fusion splicing, comprising an optical fiber fusion splicer body and an outer shell for protecting internal components, an electrode rod is arranged in the outer shell and a group of bases are arranged on both sides of the electrode rod, a table for supporting optical fiber wires is arranged on the base, and a clamping and moving mechanism is arranged on the table to adaptively fix the insulation layer of the optical fiber wire and drive the optical fiber wire to move toward the electrode rod;

[0007] The clamping and moving mechanism includes a special-shaped frame seat that can move freely in the horizontal direction, a horizontal slide groove for sliding connection of the special-shaped frame seat is provided on the base, a clamping assembly for fixing the optical fiber wire is provided on the special-shaped frame seat, and the clamping assembly includes two groups of horizontal seats that can move synchronously in the horizontal direction toward or away from each other, and a group of clamping plates for contact connection with the insulating layer of the optical fiber wire is provided above each group of horizontal seats, and a fixed displacement assembly is provided on the horizontal seat to limit the horizontal longitudinal movement distance of the clamping plates according to the diameter of the optical fiber wire;

[0008] The table is provided with a horizontal component for adjusting the horizontal distance between the special-shaped frame seat and the electrode rod and driving the special-shaped frame seat to drive the clamping component to operate at the end position of the horizontal movement;

[0009] The base is provided with a lower slide driven by a No. 1 electric push rod, and the special-shaped frame seat and the lower slide both move horizontally synchronously, and a groove body 1 for the lower slide to slide horizontally is opened on the base.

[0010] Preferably, the clamping assembly also includes a bidirectional screw that rotates on a fixed axis on the special-shaped frame seat, and two groups of internal threaded tubes with opposite thread directions are threadedly connected to the bidirectional screw. The two groups of transverse seats are respectively rotated on a group of internal threaded tubes on a fixed axis, and the transverse seat is provided with a same-position seat that moves horizontally synchronously with the same-position seat, and the transverse seat is provided with two grooves for the same-position seat to slide horizontally and longitudinally, and the same-position seat passes through the table top and is fixedly connected to the clamp.

[0011] Preferably, the fixed displacement assembly comprises a locking plate arranged on the horizontal seat, and the horizontal seat is provided with a receiving groove for sliding connection of the locking plate, and the internal threaded tube is provided with a locking groove for use with the locking plate at a position corresponding to the locking plate;

[0012] A return spring is arranged in the receiving groove, and two ends of the return spring are fixedly connected to the horizontal seat and the clamping plate respectively;

[0013] One end of the positioning plate facing the same position seat is fixedly connected with a positioning pin, and the same position seat is provided with a V-shaped positioning groove for the positioning pin to be slidably connected.

[0014] Preferably, the locking plate is in the locking groove in an initial state, a guide column is fixedly connected to the special-shaped frame seat, and a round hole for the guide column to slide through is opened on the horizontal seat.

[0015] Preferably, a transverse axis is fixedly rotated on the special-shaped frame seat, a worm is fixedly sleeved on the transverse axis, both ends of the worm are in sliding contact with the inner wall of the special-shaped frame seat, the worm is meshingly connected with a worm wheel, and the worm wheel fixed sleeve is arranged on the bidirectional screw.

[0016] Preferably, the horizontal assembly comprises a hollow cylinder fixedly connected to a lower slide, an upper slide is arranged on the lower slide, and a groove body three is provided on the lower slide for the upper slide to slide horizontally;

[0017] The cavity cylinder is provided with a center column coaxial therewith, a positioning pin is fixedly connected to the side of the lower slide seat facing the center column, and a threaded positioning groove for the positioning pin to be slidably connected is provided on the center column;

[0018] The central column and the transverse axis are coaxially fixed, and an axis protrusion is fixedly connected to the outer peripheral surface of the central column facing one end of the transverse axis. The cavity tube is provided with two groups of annular grooves for sliding connection of the axis protrusions, and an inner axis groove for sliding of the axis protrusions and connected with both groups of annular grooves.

[0019] Preferably, the shaft protrusion is located at the junction of a set of annular grooves and the inner shaft groove in an initial state, and the adjustment pin is located at one end of the threaded adjustment groove close to the transverse axis.

[0020] Preferably, a V-shaped swing arm is provided on the lower slide, and the middle part of the V-shaped swing arm is fixedly rotated on the lower slide, the head and tail ends of the V-shaped swing arm are respectively fixedly connected with a clearance pin and a limit pin, and a clearance groove for sliding connection of the clearance pin is provided on the upper slide;

[0021] The base is provided with a side seat which is driven by a No. 2 electric push rod and moves freely in the horizontal longitudinal direction, and the base is provided with a longitudinal slide groove for the sliding connection of the side seat, and the side seat is provided with a limiting slide groove for the sliding connection of the limiting pin.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The present invention realizes rapid coarse adjustment and precise adjustment of the position of the optical fiber wire by setting a clamping and moving mechanism. The special-shaped frame seat can quickly push the optical fiber wire toward the electrode rod driven by the leveling component to complete the coarse adjustment process. Then, the optical fiber wire is precisely adjusted to the set fusion position through fine adjustment of the No. 1 electric push rod. This combination of coarse adjustment and fine adjustment significantly improves the efficiency of optical fiber fusion.

[0024] 2. The present invention sets a clamping assembly, and through the cooperation of a bidirectional screw rod and an internal threaded barrel, it is possible to realize the synchronous movement of two sets of clamps toward or away from each other, thereby adapting to optical fiber insulation layers of different diameters. The design of the positioning plate and the return spring in the fixed displacement assembly further ensures that the clamp will not cause excessive squeezing of the optical fiber when clamping the optical fiber, thereby avoiding damage to the optical fiber. This adaptive clamping function does not require replacement of the V-groove or manual adjustment of the clamp, which significantly improves the versatility and ease of operation of optical fiber fusion. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0026] Figure 2 It is a schematic diagram of the components where the splint of the present invention is located;

[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 components where the special-shaped frame seat of the present invention is located;

[0029] Figure 5 This is a schematic diagram of the components where the horizontal seat of the present invention is located;

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

[0031] Figure 7 This is a schematic diagram of the components where the cavity tube of the present invention is located;

[0032] Figure 8 It is a schematic diagram of the components where the upper slide seat of the present invention is located;

[0033] Fig. 9 For the present invention Figure 8 Enlarged view of center C.

[0034] In the figure: 1. table; 2. electrode rod; 3. clamping plate; 4. special-shaped frame seat; 5. bidirectional screw rod; 6. internal threaded tube; 7. horizontal seat; 8. guide column; 9. clamping plate; 10. clamping groove; 11. reset spring; 12. same position seat; 13. positioning pin; 14. V-shaped positioning groove; 15. worm; 16. worm wheel; 17. transverse axis; 18. lower slide seat; 19. cavity tube; 20. center column; 21. shaft protrusion; 22. annular groove; 23. inner shaft groove; 24. upper slide seat; 25. adjustment pin; 26. threaded adjustment groove; 27. clearance pin; 28. clearance groove; 29. ​​V-shaped rocker; 30. side seat; 31. limit pin; 32. limit slide groove. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] See also Figures 1 to 9 The present invention provides a technical solution: an optical fiber propulsion mechanism for optical fiber fusion splicing, comprising an optical fiber fusion splicer body and an outer shell for protecting internal components, an electrode rod 2 is arranged in the outer shell and a group of bases are arranged on both sides of the electrode rod 2, a table 1 for supporting optical fiber wires is arranged on the base, and a clamping and moving mechanism for adaptively fixing the insulation layer of the optical fiber wires and driving the optical fiber wires to move toward the electrode rod 2 is provided on the table 1;

[0037] The clamping and moving mechanism includes a special-shaped frame seat 4 that can move freely in the horizontal lateral direction, a lateral sliding groove for sliding connection of the special-shaped frame seat 4 is provided on the base, a clamping assembly for fixing the optical fiber wire is provided on the special-shaped frame seat 4, and the clamping assembly includes two groups of horizontal seats 7 that move synchronously toward or away from each other in the horizontal longitudinal direction, and a group of clamping plates 3 for contact connection with the insulating layer of the optical fiber wire is provided above each group of horizontal seats 7, and a fixed displacement assembly is provided on the horizontal seat 7 to limit the horizontal longitudinal movement distance of the clamping plates 3 according to the diameter of the optical fiber wire;

[0038] The table 1 is provided with a horizontal component for adjusting the horizontal distance between the special-shaped frame seat 4 and the electrode rod 2 and driving the special-shaped frame seat 4 to drive the clamping component to operate at the end position of the horizontal movement;

[0039] The base is provided with a lower slide 18 driven by a No. 1 electric push rod, and the special-shaped frame seat 4 and the lower slide 18 move horizontally synchronously, and a groove body 1 for the lower slide 18 to slide horizontally is opened on the base.

[0040] like Figure 1 and Figure 2 As shown, when the optical fiber wires are welded, two groups of optical fiber wires can be placed on a group of bases respectively, and the optical fiber wires are placed between two groups of clamps 3. Driven by the clamping assembly, the two groups of clamps 3 can move synchronously toward or away from each other in the horizontal longitudinal direction until the two groups of clamps 3 can contact and connect with the insulating layer in the optical fiber wires, thereby completing the synchronous fixing process of the two groups of optical fiber wires.

[0041] At the same time, due to the difference in diameter size of the optical fiber wires during the welding process, under the drive of the fixed displacement component, after the two sets of clamps 3 are squeezed and contacted with the insulation layer in the optical fiber wires, as the subsequent clamping components continue to operate, the horizontal spacing between the two clamps 3 will not continue to change, thereby achieving adaptive clamping of the optical fiber wires while preventing excessive squeezing of the optical fiber wires and causing damage.

[0042] Among them, through the coordinated use of the clamping component and the fixed and shifting component, the clamp can adapt to optical fiber insulation layers of different diameters, and the optical fiber wire can be fixed without replacing the V-groove, thereby improving versatility and reducing the operational complexity caused by changes in the size of the optical fiber wire.

[0043] At the same time, the clamping component is arranged on the special-shaped frame seat 4. Driven by the horizontal component, the special-shaped frame seat 4 can move freely in the horizontal direction toward the direction of the electrode rod 2. Therefore, after the clamping component completes the adaptive fixation of the optical fiber wire, the special-shaped frame seat 4 can be quickly driven to carry the optical fiber wire toward the electrode rod 2 to shorten the distance between the two groups of optical fiber wires and the electrode rod 2, thereby achieving the purpose of first fixing the optical fiber wire and then quickly adjusting the position. Among them, the horizontal movement process of the special-shaped frame seat 4 driven by the horizontal component is a coarse adjustment process of the optical fiber wire position, and its purpose is to quickly make the two groups of optical fiber wires close to the position of the electrode rod 2, so as to reduce the workload of subsequent fine adjustment, thereby improving the welding efficiency.

[0044] At the same time, when fine-tuning the position of the optical fiber wire, the lower slide 18 is driven to move by the No. 1 electric push rod fixed on the base, thereby further changing the horizontal lateral position of the special-shaped frame seat 4, and according to the distance between the optical fiber wire at one end and the electrode rod 2, the horizontal lateral movement distance of the lower slide 18 is dynamically adjusted to drive the optical fiber end face to reach the set welding position.

[0045] It should be noted that when the special-shaped frame seat 4 is in a position far away from one end of the electrode rod 2, the operation of the horizontal component can first drive the clamping component to clamp and fix the optical fiber wire, and after the fixation is completed, the special-shaped frame seat 4 drives the optical fiber wire to move rapidly toward the side of the electrode rod 2, thereby completing the coarse adjustment process, and then the operation of the No. 1 electric push rod is used to realize further movement of the special-shaped frame seat 4 until the subsequent fine adjustment process is completed. At the same time, after the welding is completed, by driving the horizontal component to operate, the special-shaped frame seat 4 is in a position close to one end of the electrode rod 2, which can drive the clamping component to complete the release of the fused optical fiber wire, and return to the initial position after releasing the wire, thereby facilitating the subsequent post-processing of the fused optical fiber wire.

[0046] In one of the more preferred embodiments, the clamping assembly further comprises a bidirectional screw rod 5 which is fixedly rotated on the special-shaped frame seat 4, and two groups of internal threaded tubes 6 with opposite thread directions are threadedly connected to the bidirectional screw rod 5, and two groups of transverse seats 7 are respectively fixedly rotated on one group of internal threaded tubes 6, and the transverse seat 7 is provided with a same position seat 12 which moves horizontally synchronously with it, and the transverse seat 7 is provided with two grooves for the same position seat 12 to slide horizontally and longitudinally, and the same position seat 12 passes through the table 1 and is fixedly connected to the clamping plate 3;

[0047] like Figure 2 , Figure 4 and Figure 5 As shown, when the bidirectional screw 5 rotates freely in the vertical direction, it can drive the two groups of internal threaded tubes 6 to rotate in opposite directions through the two groups of opposite threaded parts on it, wherein the internal threaded tube 6 is provided with a transverse seat 7, which can drive the two groups of transverse seats 7 to move synchronously toward or away from each other in the horizontal direction.

[0048] At the same time, the isostatic seat 12 arranged on the transverse seat 7 moves synchronously with it, and the isostatic seat 12 is fixedly connected to the clamping plate 3. Therefore, when the two groups of transverse seats 7 move synchronously, the two groups of clamping plates 3 can be driven to approach the optical fiber wire synchronously, and finally the two groups of clamping plates 3 can be driven to clamp and fix the optical fiber wire.

[0049] Based on the clamping assembly embodiment, the fixed displacement assembly includes a clamping plate 9 arranged on the horizontal seat 7, and the horizontal seat 7 is provided with a receiving groove for sliding connection of the clamping plate 9, and the internal threaded tube 6 is provided with a clamping groove 10 used in conjunction with the clamping plate 9 at a position corresponding to the clamping plate 9;

[0050] A return spring 11 is provided in the receiving groove, and the two ends of the return spring 11 are fixedly connected to the horizontal seat 7 and the clamping plate 9 respectively;

[0051] A positioning pin 13 is fixedly connected to one end of the positioning plate 9 facing the same position seat 12 , and a V-shaped positioning groove 14 for the positioning pin 13 to be slidably connected is provided on the same position seat 12 .

[0052] The locking plate 9 is in the locking groove 10 in the initial state, the guide column 8 is fixedly connected to the special-shaped frame seat 4, and the horizontal seat 7 is provided with a round hole for the guide column 8 to slide through.

[0053] A transverse shaft 17 is fixedly rotated on the special-shaped frame seat 4, 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 special-shaped frame seat 4. The worm 15 is meshedly connected with a worm wheel 16, and the worm wheel 16 is fixedly sleeved on the bidirectional screw 5.

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

[0055] Among them, when the transverse axis 17 rotates in the vertical direction, the bidirectional screw 5 can be driven to rotate on the special-shaped frame seat 4 through the worm 15 and the worm wheel 16, wherein the transverse seat 7 is slidably sleeved on the guide column 8, and in the initial state, the locking plate 9 is in the locking groove 10 opened on the internal threaded tube 6. Under the restriction of the locking plate 9, when the bidirectional screw 5 rotates, the internal threaded tube 6 cannot rotate synchronously with the bidirectional screw 5, but drives the transverse seat 7 to move in the horizontal longitudinal direction as the bidirectional screw 5 rotates, thereby changing the spacing between the two sets of clamps 3.

[0056] At the same time, when the two sets of clamps 3 are pressed and contacted with the optical fiber wires, the clamps 3 cannot continue to move horizontally due to the obstruction of the optical fiber wires. Since the locking plate 9 has not disengaged from the locking groove 10 at this time, as the bidirectional screw rod 5 rotates, the transverse seat 7 can continue to move a certain distance in the horizontal longitudinal direction, thereby driving the transverse seat 7 and the same position seat 12 to move relative to each other.

[0057] At this time, the positioning pin 13 arranged on the locking plate 9 slides on the V-shaped positioning groove 14 opened on the same position seat 12, thereby changing the position of the locking plate 9 in the accommodating groove through the positioning pin 13, and as the positioning pin 13 slides on the V-shaped positioning groove 14, the return spring 11 is compressed and deformed to drive the locking plate 9 out of the locking groove 10.

[0058] Subsequently, as the bidirectional screw rod 5 continues to rotate, since the locking plate 9 has disengaged from the locking groove 10, the internal threaded tube 6 will no longer be restricted by the transverse seat 7, and the internal threaded tube 6 will subsequently rotate synchronously with the bidirectional screw rod 5. Therefore, the horizontal position of the transverse seat 7 will not change with the rotation of the bidirectional screw rod 5, thereby driving the clamping plate 3 to maintain its horizontal longitudinal position when clamping and fixing the optical fiber wire, thereby ensuring that the optical fiber wire is fixed without excessively squeezing the optical fiber wire, and being able to adapt to optical fiber wires of different diameters to reduce the operational complexity caused by changes in the size of the optical fiber wire.

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

[0060] The cavity cylinder 19 is provided with a center column 20 coaxial therewith, a positioning pin 25 is fixedly connected to the side of the lower slide 18 facing the center column 20, and a threaded positioning groove 26 for the positioning pin 25 to be slidably connected is provided on the center column 20;

[0061] The central column 20 and the transverse axis 17 are coaxially fixed, and an axial protrusion 21 is fixedly connected to the outer peripheral surface of the central column 20 at one end facing the transverse axis 17, and the cavity tube 19 is provided with two groups of annular grooves 22 for sliding connection of the axial protrusion 21, and an inner axial groove 23 for sliding of the axial protrusion 21 and connected with both groups of annular grooves 22.

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

[0063] like Figure 1 , Figure 7 and Figure 8 As shown, when the upper slide 24 moves away from the cavity tube 19, since the shaft protrusion 21 is located at the junction of a group of annular grooves 22 and an inner shaft groove 23 close to the center column 20, the center column 20 cannot move in the horizontal direction under the restriction of the group of annular grooves 22. At this time, the adjustment pin 25 can be driven to slide on the threaded adjustment groove 26, thereby driving the center column 20 and the transverse axis 17 to rotate in the vertical direction, and the rotation process of the transverse axis 17 drives the clamping assembly to operate to clamp and fix the optical fiber wire, and after the rotation of the center column 20 is completed, its shaft protrusion 21 is still at the junction of the annular groove 22 and the inner shaft groove 23.

[0064] After the optical fiber wire is clamped and fixed, when the upper slide 24 moves toward the cavity tube 19, since the shaft protrusion 21 corresponds to the inner shaft groove 23, the center column 20 can move horizontally synchronously with the upper slide 24 during the movement of the upper slide 24, thereby driving the special-shaped frame seat 4 and the optical fiber wire that has been clamped and fixed thereon to move toward the side of the electrode rod 2 through the transverse axis 17 until the shaft protrusion 21 moves to a position of a group of annular grooves 22 away from the center column 20, thereby completing the adaptive clamping of the optical fiber wire and the coarse adjustment process of the position.

[0065] Subsequently, the lower slide 18 and the upper slide 24 thereon are driven by the No. 1 electric push rod to move horizontally synchronously until the optical fiber wire moves to the set welding position, thereby completing the fine adjustment process of the optical fiber wire position, and after the welding of the two groups of optical fiber wires is completed, the upper slide 24 is continued to be driven to slide on the lower slide 18 and move toward the side of the cavity tube 19. At this time, since the shaft protrusion 21 is in a group of annular grooves 22 away from the center column 20, the center column 20 is driven to be unable to move in the horizontal direction. At this time, the continued movement of the upper slide 24 can drive the adjustment pin 25 to slide on the threaded adjustment groove 26, thereby driving the center column 20 and the transverse shaft 17 to rotate in the opposite direction, so as to realize the release process of the welded optical fiber wire, thereby avoiding subsequent processing operations, such as the return, heating and cooling of the subsequent heat shrink tube.

[0066] At the same time, when the clamping assembly completes the release of the optical fiber wire, the upper slide 24 is driven to move away from the cavity tube 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] On the basis of the embodiment of the horizontal assembly, the lower slide 18 is provided with a V-shaped swing rod 29, and the middle part of the V-shaped swing rod 29 is fixedly rotated on the lower slide 18, the head and tail ends of the V-shaped swing rod 29 are respectively fixedly connected with a yield pin 27 and a limit pin 31, and the upper slide 24 is provided with a yield groove 28 for the yield pin 27 to be slidably connected;

[0068] The base is provided with a side seat 30 driven by a No. 2 electric push rod and freely moving in the horizontal longitudinal direction, and the base is provided with a longitudinal slide groove for sliding connection of the side seat 30, and the side seat 30 is provided with a limiting slide groove 32 for sliding connection of a limiting pin 31.

[0069] like Figure 1 , Figure 2 , Figure 8 and Fig. 9 As shown, the side seat 30 is driven to move in the horizontal longitudinal direction by the No. 2 electric push rod, thereby driving the V-shaped rocker arm 29 to deflect through the limiting slide groove 32 opened thereon, wherein, when the side seat 30 moves away from or away from the lower slide 18, the upper slide 24 can be driven to slide on the lower slide 18 by the deflection of the V-shaped rocker arm 29, and then the horizontal longitudinal movement direction and movement amount of the side seat 30 are adjusted by the driving of the No. 2 electric push rod, thereby dynamically changing the sliding direction and sliding displacement of the upper slide 24 on the lower slide 18, thereby successively realizing the clamping and fixation of the optical fiber wire, the coarse adjustment of the position of the optical fiber wire, and the release of the optical fiber wire.

[0070] At the same time, driven by electric push rod No. 1, the lower slide 18 can move horizontally. Since the V-shaped rocker 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 rocker arm 29 to return to the initial deflection state, the torsion spring is an existing device and a technical means well known to technical personnel in this field, so it is not shown in the figure. Therefore, when electric push rod No. 1 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 special-shaped frame seat 4 to move toward the electrode rod 2 through the center column 20 and the horizontal axis 17, thereby realizing the fine adjustment process of the position of the optical fiber wire.

[0071] Among them, 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 thereon, and the specific size and shape need to be adapted to the internal components of the existing optical fiber fusion splicer body, and therefore are not shown in the figure.

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

Claims

1. An optical fiber advancing mechanism for optical fiber fusion splicing, comprising an optical fiber fusion splicing machine body and an outer shell for protecting internal components, an electrode rod (2) is arranged in the outer shell, and a group of bases are respectively arranged on both sides of the electrode rod (2), and a table (1) for supporting optical fiber wires is arranged on the base, characterized in that: A clamping and moving mechanism on the table (1) for adaptively fixing the insulating layer of the optical fiber wire and driving the optical fiber wire to move toward the electrode rod (2); The clamping and moving mechanism comprises a shaped frame seat (4) that can move freely in the horizontal lateral direction, a lateral sliding groove for sliding connection of the shaped frame seat (4) is provided on the base, a clamping assembly for fixing the optical fiber wire is provided on the shaped frame seat (4), the clamping assembly comprises two groups of horizontal seats (7) that can move synchronously in the horizontal longitudinal direction towards or away from each other, a group of clamping plates (3) for contact connection with the insulating layer of the optical fiber wire is provided above each group of horizontal seats (7), and a fixed displacement assembly is provided on the horizontal seat (7) for limiting the horizontal longitudinal movement distance of the clamping plates (3) according to the diameter of the optical fiber wire; The table top (1) is provided with a horizontal component for adjusting the horizontal distance between the special-shaped frame seat (4) and the electrode rod (2) and driving the special-shaped frame seat (4) to drive the clamping component to operate at the end position of the horizontal movement; The base is provided with a lower slide (18) driven by a No. 1 electric push rod, and the special-shaped frame seat (4) and the lower slide (18) both move horizontally synchronously, and the base is provided with a groove body for the lower slide (18) to slide horizontally.

2. The optical fiber advancing mechanism for optical fiber fusion splicing according to claim 1, characterized in that: The clamping assembly also includes a bidirectional screw (5) which is fixedly rotated on the special-shaped frame seat (4), and two groups of internal threaded tubes (6) with opposite thread directions are threadedly connected to the bidirectional screw (5). Two groups of transverse seats (7) are respectively fixedly rotated on one group of internal threaded tubes (6), and the transverse seat (7) is provided with a same seat (12) which moves horizontally synchronously with the same seat, and the transverse seat (7) is provided with two grooves for the same seat (12) to slide horizontally and longitudinally, and the same seat (12) passes through the table (1) and is fixedly connected to the clamping plate (3).

3. The optical fiber advancing mechanism for optical fiber fusion splicing according to claim 2, characterized in that: The fixed displacement assembly comprises a locking plate (9) arranged on a transverse seat (7), and a receiving groove for sliding connection of the locking plate (9) is provided on the transverse seat (7), and a locking groove (10) for use with the locking plate (9) is provided on the internal threaded cylinder (6) at a position corresponding to the locking plate (9); A return spring (11) is arranged in the receiving groove, and two ends of the return spring (11) are respectively fixedly connected to the horizontal seat (7) and the clamping plate (9); One end of the positioning plate (9) facing the same position seat (12) is fixedly connected with a positioning pin (13), and the same position seat (12) is provided with a V-shaped positioning groove (14) for the positioning pin (13) to be slidably connected.

4. The optical fiber advancing mechanism for optical fiber fusion splicing according to claim 3, characterized in that: The locking plate (9) is in the locking groove (10) in the initial state, a guide column (8) is fixedly connected to the special-shaped frame seat (4), and a round hole for the guide column (8) to slide through is opened on the horizontal seat (7).

5. The optical fiber advancing mechanism for optical fiber fusion splicing according to claim 2, characterized in that: A transverse shaft (17) is fixedly rotatably arranged on the special-shaped frame seat (4), 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 special-shaped frame seat (4), the worm (15) is meshingly connected with a worm wheel (16), and the worm wheel (16) is fixedly sleeved on the bidirectional screw rod (5).

6. The optical fiber advancing mechanism for optical fiber fusion splicing according to claim 5, characterized in that: The horizontal assembly comprises a cavity cylinder (19) fixedly connected to a lower slide seat (18), an upper slide seat (24) is arranged on the lower slide seat (18), and a groove body (3) is provided on the lower slide seat (18) for the upper slide seat (24) to slide horizontally; The cavity cylinder (19) is provided with a center column (20) coaxial therewith, a positioning pin (25) is fixedly connected to the side of the lower slide seat (18) facing the center column (20), and a threaded positioning groove (26) for the positioning pin (25) to be slidably connected is provided on the center column (20); The central column (20) and the transverse shaft (17) are coaxially fixed, and an axial protrusion (21) is fixedly connected to the outer peripheral surface of one end of the central column (20) facing the transverse shaft (17), and the cavity tube (19) is provided with two groups of annular grooves (22) for sliding connection of the axial protrusions (21), and an inner axial groove (23) for sliding of the axial protrusions (21) and connected to both groups of annular grooves (22).

7. The optical fiber advancing mechanism for optical fiber fusion splicing according to claim 6, characterized in that: In the initial state, the shaft projection (21) is located at the junction of a set of annular grooves (22) and the inner shaft groove (23), and the adjustment pin (25) is located at one end of the threaded adjustment groove (26) close to the transverse shaft (17).

8. The optical fiber advancing mechanism for optical fiber fusion splicing according to claim 6, characterized in that: The lower slide seat (18) is provided with a V-shaped swing rod (29), and the middle part of the V-shaped swing rod (29) is fixedly axially rotated on the lower slide seat (18), the head and tail ends of the V-shaped swing rod (29) are respectively fixedly connected with a clearance pin (27) and a limit pin (31), and the upper slide seat (24) is provided with a clearance groove (28) for the clearance pin (27) to be slidably connected; The base is provided with a side seat (30) driven by a second electric push rod and freely moving in the horizontal longitudinal direction, and the base is provided with a longitudinal slide groove for sliding connection of the side seat (30), and the side seat (30) is provided with a limiting slide groove (32) for sliding connection of a limiting pin (31).

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