Manufacturing device of straight-pulling beam combiner

Abstract

The invention provides a straight-pulling beam combiner manufacturing device which comprises two clamping devices arranged in the first direction in a spaced mode, and the two clamping devices are used for clamping the two opposite ends of an optical fiber and can be driven to slide in the first direction in the face-to-face or back-to-back mode. The clamping device comprises a plurality of positioning pipes extending in the first direction, the positioning pipes are placed according to a preset rule, and each positioning pipe is used for allowing one optical fiber to penetrate through. According to the straightening beam combiner, through the arrangement of the multiple positioning pipes, all the optical fibers can be positioned through all the positioning pipes according to a preset rule and then straightened, the optical fibers do not need to be manually placed, the placing precision of all the optical fibers is improved, the error-tolerant rate of manufacturing of the straightening beam combiner is increased, and the convenience of optical fiber fusion and glass tube tapering is enhanced; and the yield of products is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of straight-pull beam combiners, and more specifically, to a manufacturing device for a straight-pull beam combiner. Background Art

[0002] The straight-pull beam combiner is an important optical device, which is mainly used to combine multiple pump beams into one beam to increase the pump power. It plays a key role in optical communications, laser processing and other fields. The straight-pull beam combiner is mainly composed of input optical fiber, beam combining area and output optical fiber, and realizes energy merging through optical fiber fusion and optical coupling principle.

[0003] At present, when manufacturing straight-pull combiners, optical fibers are generally placed manually as required, which results in low manufacturing tolerance and yield of straight-pull combiners, as well as great difficulty in production and processing. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide a manufacturing device for a straight-pull beam combiner to solve the technical problem of low yield rate of the straight-pull beam combiner in the prior art.

[0005] To achieve the above-mentioned purpose, the technical solution adopted in the present application is: to provide a manufacturing device of a straight-pull combiner, comprising two clamps arranged at intervals along a first direction, the two clamps are used to respectively clamp the opposite ends of the optical fiber and can be driven to slide toward or away from each other along the first direction; the clamp comprises a plurality of positioning tubes extending along the first direction, each of the positioning tubes is arranged according to a preset rule, and each positioning tube is used to allow one of the optical fibers to pass through.

[0006] In some embodiments, each of the positioning tubes includes a central positioning tube and multiple circles of peripheral positioning tubes, and each circle of the peripheral positioning tubes is sequentially arranged from the inside to the outside with the central positioning tube as the center.

[0007] In some embodiments, the clamp has a positioning cavity that penetrates along the first direction, and each of the positioning tubes is received in the positioning cavity. The outer peripheral surface of each positioning tube abuts against the outer peripheral surfaces of multiple positioning tubes distributed on its periphery, and the outer peripheral surface of the positioning tube located at the outermost periphery abuts against the inner wall surface of the positioning cavity.

[0008] In some embodiments, the clamp includes a clamping component and a positioning component. The two clamping components of the two clamps are located on the relatively outer sides of the two positioning components. The two clamping components are used to respectively clamp the opposite ends of the optical fiber. The positioning component includes each positioning tube.

[0009] In some embodiments, the positioning assembly includes a positioning seat and a fixing structure, each of the positioning tubes is passed through the positioning seat, the fixing structure is used to fix the positioning seat, and the positioning seat and the fixing structure are detachably connected.

[0010] In some embodiments, the fixing structure includes a fixing seat and a fixing cover, the positioning seat is limited to the fixing seat, the fixing cover is covered on the positioning seat, one end of the fixing cover is connected to the fixing seat, and the other end of the fixing cover is locked and connected to the fixing seat via a first fastener.

[0011] In some embodiments, the positioning seat includes a positioning portion and a stop portion that are interconnected, the positioning tube is passed through the positioning portion, the fixing seat has a first groove that passes through along the first direction, the positioning portion is passed through the first groove, and the stop portion stops at the outer end surface of the first groove.

[0012] In some embodiments, the clamping assembly includes a support seat and a pressure plate, the support seat is used to support the optical fiber, the pressure plate is used to press on the optical fiber, one end of the pressure plate is rotatably connected to the support seat, and the other end of the pressure plate is locked to the support seat by a second fastener.

[0013] In some embodiments, the clamp further includes a mounting substrate, and the clamping assembly and the positioning assembly are both fixed to the mounting substrate.

[0014] In some embodiments, the manufacturing device of the straight-pull combiner further includes a glass tube, wherein the glass tube is disposed between the two clamps, and the glass tube is used to be sleeved on each of the optical fibers.

[0015] The beneficial effects of the manufacturing device of the straight-pull combiner provided in the present application are: through the provision of two clamps, and the two clamps are used to respectively clamp the opposite ends of the optical fiber and can slide toward or away from each other along a first direction after being driven, so that the optical fiber can be straightened to form a straightening combiner by driving the two clamps to slide away from each other; in addition, the two clamps each include a plurality of positioning tubes arranged according to preset rules. Before straightening and combining, each optical fiber can be passed through each positioning tube respectively, and each optical fiber is positioned according to the preset rules by each positioning tube and then straightened. There is no need to manually place the optical fiber, which improves the placement accuracy of each optical fiber, increases the fault tolerance rate of the straightening combiner manufacturing, enhances the convenience of optical fiber melting and glass tube taper, and improves the product yield. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 A schematic diagram of the three-dimensional structure of a manufacturing device for a straight-pull beam combiner provided in an embodiment of the present application;

[0018] Figure 2 A schematic diagram of the structure of a positioning component in a manufacturing device for a straight-pull combiner provided in an embodiment of the present application;

[0019] Figure 3 A schematic diagram of the three-dimensional structure of a positioning seat and each positioning tube in a manufacturing device for a straight-pull beam combiner provided in an embodiment of the present application;

[0020] Figure 4 A schematic diagram of the side structure of a positioning seat and each positioning tube in a manufacturing device for a straight-pull beam combiner provided in an embodiment of the present application;

[0021] Figure 5 A schematic diagram of the side structure of a positioning seat in a manufacturing device for a straight-pull beam combiner provided in an embodiment of the present application;

[0022] Figure 6 A schematic diagram of the structure of the fixed structure in the manufacturing device of the straight-pull combiner provided in an embodiment of the present application.

[0023] Among them, the reference numerals in the figure are:

[0024] 1. Clamp; 100. Clamping assembly; 110. Support seat; 120. Press plate; 200. Positioning assembly; 210. Positioning tube; 210a. Central positioning tube; 210b. Peripheral positioning tube; 220. Positioning seat; 221. Positioning cavity; 222. Positioning part; 223. Stopper; 230. Fixed structure; 231. Fixed seat; 2311. First groove; 232. Fixed cover; 2321. Second groove; 233. First magnetic element; 234. Second magnetic element; 300. Mounting substrate; 310. Mounting hole; 2. Glass tube; 1000. Optical fiber; X, first direction; Y, second direction. DETAILED DESCRIPTION

[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0026] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0027] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0029] See also Figures 1 to 4 Now, the manufacturing device of the straight-pull beam combiner provided in the embodiment of the present application is described. The manufacturing device of the straight-pull beam combiner is used to synchronously straighten a plurality of optical fibers 1000 to form a straight-pull beam combiner.

[0030] The manufacturing device of the straight-pull combiner includes two clamps 1 arranged at intervals along a first direction X, and the two clamps 1 are used to clamp the opposite ends of the optical fiber 1000 respectively and can be driven to slide toward or away from each other along the first direction X; the clamp 1 includes a plurality of positioning tubes 210 extending along the first direction X, and each positioning tube 210 is placed according to a preset rule, and each positioning tube 210 is used for an optical fiber 1000 to pass through.

[0031] Among them, each positioning tube 210 is placed according to a preset rule, which means that each positioning tube 210 can be placed according to the requirements of the production of the straight-pull combiner, so that the optical fiber 1000 passing through each positioning tube 210 can be placed according to the requirements, so that the formed straight-pull combiner meets the production requirements. For example, each positioning tube 210 can be placed in a regular hexagon. Specifically, each positioning tube 210 includes a central positioning tube 210a and multiple circles of peripheral positioning tubes 210b. Each circle of peripheral positioning tubes 210b is sequentially arranged with the central positioning tube 210a as the center to the periphery, and each outer ring positioning tube 210 of each circle of peripheral positioning tubes 210b is placed in a regular hexagon. Of course, each positioning tube 210 can also be placed according to other rules, which is not the only limitation here.

[0032] Each positioning tube 210 extends along the first direction X, that is, the axial direction of each positioning tube 210 is the first direction X, and each optical fiber 1000 is respectively inserted into each positioning tube 210, so that each optical fiber 1000 can also be placed according to the preset requirements. It should be noted here that the number of positioning tubes 210 can be large, and the number of positioning tubes 210 can be more than the number of optical fibers 1000. When installing, the optical fiber 1000 can be installed starting from the central positioning tube 210a, and the peripheral positioning tubes 210b can be used outward in sequence, so that each optical fiber 1000 can be enclosed to form a solid circular center structure.

[0033] The manufacturing device of the straight-pull combiner in this embodiment is provided with two clamps 1, and the two clamps 1 are used to clamp the opposite ends of the optical fiber 1000 respectively and can slide toward or away from each other along the first direction X after being driven, so that the optical fiber 1000 can be straightened to form a straightening combiner by driving the two clamps 1 to slide away from each other; in addition, the two clamps 1 each include a plurality of positioning tubes 210 arranged according to preset rules. Before straightening and combining, each optical fiber 1000 can be passed through each positioning tube 210 respectively, and each optical fiber 1000 is positioned according to the preset rules by each positioning tube 210 and then straightened. There is no need to manually place the optical fiber 1000, which improves the placement accuracy of each optical fiber 1000, increases the fault tolerance rate of the straightening combiner manufacturing, enhances the convenience of optical fiber 1000 melting and glass tube 2 taper, and improves the product yield.

[0034] In some embodiments, see Figure 4 Each positioning tube 210 includes a central positioning tube 210a and multiple circles of peripheral positioning tubes 210b. Each circle of peripheral positioning tubes 210b is sequentially arranged from the inside to the outside with the central positioning tube 210a as the center. When multiple optical fibers 1000 are sequentially inserted into the central positioning tube 210a and each peripheral positioning tube 210b from the inside to the outside, each optical fiber 1000 can also be enclosed to form a circular solid structure distributed sequentially from the inside to the outside.

[0035] Optionally, the center lines of the peripheral positioning tubes 210b in each circle of the peripheral positioning tubes 210b are distributed in a regular hexagon, so that each circle of the optical fibers 1000 is also distributed in a regular hexagon.

[0036] In some embodiments, see Figure 4 and Figure 5The clamp 1 has a positioning cavity 221 that penetrates along the first direction X. Each positioning tube 210 is received in the positioning cavity 221. The outer peripheral surface of each positioning tube 210 abuts against the outer peripheral surfaces of multiple positioning tubes 210 distributed on its periphery, and the outer peripheral surface of the positioning tube 210 located at the outermost periphery abuts against the inner wall surface of the positioning cavity 221. The above arrangement enables each positioning tube 210 to be surrounded, abutted and limited by the surrounding positioning tubes 210 or the inner wall surface of the positioning cavity 221, so that the radial position of each positioning tube 210 in the positioning cavity 221 is fixed, and there is no need to set an additional positioning structure to radially position the positioning tube 210, thereby simplifying the structure of the entire positioning seat 220.

[0037] Optionally, see Figure 5 The cross section of the positioning cavity 221 is a regular hexagon, and the inner wall surface of the positioning cavity 221 can just abut against the positioning tubes 210 of the outermost circle to ensure that the positioning tubes 210 can be arranged according to the preset rules.

[0038] In the present application, the positioning tubes 210 can be abutted against each other and the inner wall of the positioning cavity 221 can be abutted against the positioning tubes 210 to limit the position, thereby ensuring the installation stability of each positioning tube 210 in the positioning cavity 221. Of course, in order to improve the installation stability of the positioning tubes 210, each positioning tube 210 can be further fixed by glue after being assembled in the positioning cavity 221.

[0039] In some embodiments, see Figure 1 The clamp 1 includes a clamping component 100 and a positioning component 200. The two clamping components 100 of the two clamps 1 are located on the relatively outer sides of the two positioning components 200. The two clamping components 100 are used to clamp the opposite ends of the optical fiber 1000 respectively. The positioning component 200 includes each positioning tube 210.

[0040] Specifically, one positioning assembly 200 is combined with one clamping assembly 100 to form a clamp 1, and another positioning assembly 200 is combined with another clamping assembly 100 to form another clamp 1. In the same clamp 1, each positioning tube 210 in the positioning assembly 200 is used to arrange each optical fiber 1000 along a preset rule, and the clamping assembly 100 is used to clamp and fix the end of the optical fiber 1000. When the two clamping assemblies 100 are driven to move away from each other, the optical fiber 1000 can be straightened to form a straightening combiner. In this embodiment, the optical fiber 1000 is clamped and fixed by the clamping assembly 100, which can not only fix the end of the optical fiber 1000 firmly, but also facilitate the disassembly of the optical fiber 1000. It can be understood that in other embodiments of the present application, when the end of the optical fiber 1000 does not need to be disassembled, the clamping assembly 100 may not be provided, but the end of the optical fiber 1000 is directly welded to the positioning assembly 200, which is not limited here.

[0041] In some embodiments, see Figure 2 The positioning assembly 200 includes a positioning seat 220 and a fixing structure 230. Each positioning tube 210 is inserted into the positioning seat 220. Specifically, a positioning cavity 221 is formed in the positioning seat 220. The fixing structure 230 is used to fix the positioning seat 220. The positioning seat 220 and the fixing structure 230 are detachably connected. Among them, through the setting of the positioning seat 220, each positioning tube 210 can be stored and limited, ensuring that each positioning tube 210 can be arranged according to a preset rule, and ensuring the assembly reliability of each positioning tube 210. In addition, through the setting of the fixing structure 230, the position of the positioning seat 220 can be kept stable during the straightening and combining process, thereby ensuring the positioning effect of the positioning seat 220 and the positioning tube 210 on the optical fiber 1000; in addition, by making the positioning seat 220 detachable, the positioning seat 220 can be disassembled for replacement or repair, thereby improving the service life of the manufacturing device of the straight pull combiner. Of course, in other embodiments of the present application, the positioning seat 220 may also be completely fixed in the fixed structure 230; or, the positioning seat 220 may not be provided, but the positioning cavity 221 may be directly formed in the fixed structure 230, which is not a sole limitation here.

[0042] In some embodiments, see Figure 2 and Figure 6 The fixing structure 230 includes a fixing seat 231 and a fixing cover 232. The positioning seat 220 is limited to the fixing seat 231. The fixing cover 232 is covered on the positioning seat 220. One end of the fixing cover 232 is connected to the fixing seat 231, and the other end of the fixing cover 232 is locked and connected to the fixing seat 231 through a first fastener.

[0043] Before straightening the optical fiber 1000, the fixing cover 232 is first rotated to an open state, and each optical fiber 1000 is sequentially inserted into each positioning tube 210. After each optical fiber 1000 is installed, the fixing cover 232 is rotated to cover the positioning seat 220, and the fixing cover 232 and the fixing seat 231 are locked by the first fastener, so that the positioning seat 220 is clamped by the fixing seat 231 and the fixing cover 232, thereby ensuring that the position of the positioning seat 220 is stable in the process of moving the two clamps 1 back to back to straighten the optical fiber 1000. It can be understood that in other embodiments of the present application, the positioning seat 220 can also be fixed by other means, such as by clamping or bonding. It can be understood that in other embodiments of the present application, the fixed cover 232 can also be slidably disposed on the fixed seat 231; or the fixed cover 232 can also be set to be separated from the fixed seat 231. When in use, the fixed cover 232 is covered on the fixed seat 231, and the fixed cover 232 and the fixed seat 231 are locked to each other through multiple first fasteners.

[0044] In some embodiments, see Figure 6 The fixing seat 231 has a first groove 2311 opening toward the fixing cover 232, and the fixing cover 232 has a second groove 2321 opening toward the fixing seat 231. The first groove 2311 and the second groove 2321 are enclosed together to form a mounting groove for accommodating the positioning seat 220. In this embodiment, by setting the first groove 2311, before the fixing cover 232 is tightly closed, the fixing seat 231 can be limited by the first groove 2311 to facilitate the insertion of the optical fiber 1000 into the positioning tube 210. By setting the second groove 2321, the bonding strength between the fixing cover 232 and the positioning seat 220 can be improved, that is, the clamping reliability of the positioning assembly 200 on the positioning seat 220 can be improved, and at the same time, the positioning seat 220 is at least partially protruded from the fixing seat 231, so that the positioning seat 220 can be easily installed into the fixing seat 231 or removed from the fixing seat 231.

[0045] Optionally, the first groove 2311 is provided through the fixing seat 231 along the first direction X, and the second groove 2321 is provided through the fixing cover 232 along the first direction X. During assembly, the positioning seat 220 can be inserted into the first groove 2311 along the first direction X, so that the fixing cover 232 can avoid interfering with the assembly of the positioning seat 220.

[0046] In some embodiments, see Figure 3The positioning seat 220 includes a positioning portion 222 and a stopper 223 connected to each other. The positioning tube 210 is inserted into the positioning portion 222. The fixing seat 231 has a first groove 2311 extending along the first direction X. The positioning portion 222 is inserted into the first groove 2311, and the stopper 223 is stopped at the outer end surface of the first groove 2311. During assembly, the positioning seat 220 is inserted into the first groove 2311 from one end of the first groove 2311 along the first direction X until the stopper 223 abuts against the end surface of the first groove 2311, thereby limiting the positioning seat 220 along the first direction X, so as to facilitate the insertion of the optical fiber 1000 into the positioning tube 210. After the optical fiber 1000 is inserted, the fixing cover 232 is covered and locked.

[0047] Specifically, the stopper 223 extends linearly from the bottom of one side of the positioning portion 222 along the first direction X in a direction away from the positioning portion 222, and the width of the stopper 223 along the second direction Y is greater than the width of the positioning portion 222 along the second direction Y, and the width of the stopper 223 along the second direction Y is greater than the width of the first groove 2311 along the second direction Y, so that the portion of the stopper 223 that exceeds the first groove 2311 can abut against the outer end surface of the first groove 2311. The second direction Y is perpendicular to the first direction X, and the first direction Y is perpendicular to the vertical direction, and the first direction X is perpendicular to the vertical direction.

[0048] In some embodiments, see Figure 6 The fixing structure 230 also includes a first magnetic component 233 and a second magnetic component 234. The first magnetic component 233 is installed on the fixing base 231, and the second magnetic component 234 is installed on the fixing cover 232. When the fixing cover 232 is covered on the fixing base 231, the first magnetic component 233 and the second magnetic component 234 are attracted to each other to ensure the reliability of the connection between the fixing cover 232 and the fixing base 231.

[0049] In some embodiments, see Figure 1The clamping assembly 100 includes a support seat 110 and a pressure plate 120. The support seat 110 is used to support the optical fiber 1000. The pressure plate 120 is used to press on the optical fiber 1000. One end of the pressure plate 120 is rotatably connected to the support seat 110, and the other end of the pressure plate 120 is locked and connected to the support seat 110 through a second fastener. When installing the optical fiber 1000, first pass the optical fiber 1000 through each positioning tube 210 in the two positioning seats 220 in sequence, and make the opposite ends of the optical fiber 1000 supported on the support seat 110 respectively, then rotate the pressing plate 120 to cover the support seat 110, lock the pressing plate 120 to the support seat 110 through the second fastener, and rotate the fixing cover 232 to cover the positioning seat 220, and lock the fixing cover 232 to the fixing seat 231 through the first fastener, so as to complete the installation of the optical fiber 1000. At this time, it is only necessary to move the two clamping assemblies 100 away from each other to straighten the optical fiber 1000. It can be understood that in other embodiments of the present application, the end of the optical fiber 1000 can also be fixed by vacuum adsorption, which is not the only limitation here.

[0050] In one embodiment, see Figure 1 The clamp 1 also includes a mounting substrate 300, wherein one clamping assembly 100 and the adjacent positioning assembly 200 are fixed to one of the mounting substrates 300, and the other clamping assembly 100 and the adjacent positioning assembly 200 are fixed to the other mounting substrate 300. Wherein, by setting the mounting substrate 300, the clamping assembly 100 and the adjacent positioning assembly 200 can slide synchronously. During actual driving, the clamping assembly 100 and the positioning assembly 200 thereon can be driven to slide synchronously only by driving the mounting substrate 300. It can be understood that in other embodiments of the present application, the mounting substrate 300 may not be provided, but the clamping assembly 100 may be extended in the direction of the positioning assembly 200 with a connecting portion connected to the positioning assembly 200, or the positioning assembly 200 may be extended in the direction of the clamping assembly 100 with a connecting portion connected to the clamping assembly 100, which is not limited here.

[0051] Optionally, see Figure 1 The clamping assembly 100 and the positioning assembly 200 are both fixed to the mounting substrate 300 by screws or bolts. In other embodiments, the clamping assembly 100 and the positioning assembly 200 can also be fixed to the mounting substrate 300 by welding or bonding, which is not the only limitation here.

[0052] Optionally, the mounting substrate 300 has a plurality of mounting holes 310 , and each mounting hole 310 is used to enable the mounting substrate 300 to be mounted on the output end of the driving mechanism.

[0053] In some embodiments, see Figure 1The manufacturing device of the straight-pull combiner also includes a glass tube 2, which is arranged between the two clamps 1, and the glass tube 2 is used to be sleeved outside each optical fiber 1000. When installing the optical fiber 1000, firstly, each optical fiber 1000 is respectively inserted into each positioning tube 210 in one of the positioning seats 220, and then each optical fiber 1000 is respectively inserted through the glass tube 2, and then each optical fiber 1000 passing through the glass tube 2 is respectively inserted into each positioning tube 210 in another positioning seat 220, and finally the two ends of each optical fiber 1000 are clamped by the clamping components 100 on both sides. Among them, the glass tube 2 is used to wrap multiple input optical fibers 1000, ensuring the stability and integrity of the optical fiber 1000 during the taper process, avoiding the mode field change caused by the torsion of the optical fiber 1000, which is conducive to maintaining the beam quality. In addition, the glass tube 2 also improves the welding and cutting process, improves the beam beaming ability and high power tolerance performance of the combiner, and also plays an important role in controlling the parameters in the taper process.

[0054] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A device for manufacturing a straight-pull beam combiner, characterized in that: It comprises two clamps spaced apart along a first direction, the two clamps are used to clamp the opposite ends of the optical fiber respectively and can be driven to slide toward or away from each other along the first direction; the clamp comprises a plurality of positioning tubes extending along the first direction, each positioning tube is placed according to a preset rule, and each positioning tube is used for one of the optical fibers to pass through.

2. The manufacturing device of the straight-pull beam combiner according to claim 1, characterized in that: Each of the positioning tubes comprises a central positioning tube and a plurality of circles of peripheral positioning tubes, and each circle of the peripheral positioning tubes is sequentially arranged from the inside to the outside with the central positioning tube as the center.

3. The manufacturing device of the straight-pull beam combiner according to claim 1, characterized in that: The clamp has a positioning cavity extending through the first direction, and each of the positioning tubes is received in the positioning cavity. The outer peripheral surface of each positioning tube abuts against the outer peripheral surfaces of multiple positioning tubes distributed on its periphery, and the outer peripheral surface of the positioning tube at the outermost periphery abuts against the inner wall surface of the positioning cavity.

4. The manufacturing device of the straight pull combiner according to any one of claims 1 to 3, characterized in that: The clamp includes a clamping component and a positioning component. The two clamping components of the two clamps are located on the relatively outer sides of the two positioning components. The two clamping components are used to clamp the opposite ends of the optical fiber respectively. The positioning component includes the positioning tubes.

5. The manufacturing device of the straight pull combiner according to claim 4, characterized in that: The positioning assembly includes a positioning seat and a fixing structure. Each positioning tube is passed through the positioning seat. The fixing structure is used to fix the positioning seat. The positioning seat and the fixing structure are detachably connected.

6. The manufacturing device of the straight pull combiner according to claim 5, characterized in that: The fixing structure includes a fixing seat and a fixing cover, the positioning seat is limited to the fixing seat, the fixing cover is covered on the positioning seat, one end of the fixing cover is connected to the fixing seat, and the other end of the fixing cover is locked and connected to the fixing seat through a first fastener.

7. The manufacturing device of the straight pull combiner according to claim 6, characterized in that: The positioning seat includes a positioning portion and a stop portion that are connected to each other. The positioning tube is inserted into the positioning portion. The fixing seat has a first groove that passes through along the first direction. The positioning portion is inserted into the first groove. The stop portion stops at the outer end surface of the first groove.

8. The manufacturing device of the straight pull combiner according to claim 4, characterized in that: The clamping assembly includes a support seat and a pressure plate, the support seat is used to support the optical fiber, the pressure plate is used to press on the optical fiber, one end of the pressure plate is rotatably connected to the support seat, and the other end of the pressure plate is locked to the support seat by a second fastener.

9. The manufacturing device of the straight pull combiner according to claim 4, characterized in that: The clamp also includes a mounting base plate, and the clamping assembly and the positioning assembly are both fixed to the mounting base plate.

10. The manufacturing device of the straight pull combiner according to any one of claims 1 to 3, characterized in that: The manufacturing device of the straight-pull combiner also includes a glass tube, which is arranged between the two clamps and is used to be sleeved on each of the optical fibers.

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