MPO grinding optical cable fixing support and mold for manufacturing optical cable fixing block

Abstract

The utility model relates to the field of optical fibers, in particular to an MPO grinding optical cable fixing support and a mold for manufacturing an optical cable fixing block, which comprise a grinding disc provided with a plurality of grinding holes for inserting cores to be embedded and installed, and further comprise an elastic optical cable fixing block. One end of the grinding support is connected with the grinding disc, and the other end of the grinding support is connected with the optical cable fixing block. According to the scheme, the side wall of the optical cable is fixed by the elastic optical cable fixing block, and the elastic optical cable fixing block is elastically matched with the side wall of the optical cable, so that the fixed part of the optical cable is protected and is not easy to damage; when the insertion core is driven by the grinding disc to rotate, the grinding disc synchronously drives the supporting frame and the optical cable fixing block to rotate, so that the optical cable keeps moving in order in the grinding process, and the optical cable is not prone to being bent due to radial force.

Description

Technical Field

[0001] The utility model relates to the technical field of optical fibers, in particular to an MPO polishing optical cable fixing bracket and a mold for manufacturing an optical cable fixing block. Background Technique

[0002] In modern optical communication technologies, as a medium for information transmission, the performance of optical cables directly affects the efficiency and stability of the entire communication system. In high-density and high-speed application scenarios such as data centers and high-speed networks, MPO (Multi-fiber Push On) connectors can accommodate up to 12 or 24 optical fibers, providing a compact and efficient connection method. When processing MPO connectors, it is necessary to polish the end faces of the MPO connectors to improve the quality of optical fiber connections, reduce optical losses, and optimize optical signal transmission.

[0003] When polishing the ferrule at the end of the MPO, the optical cable at the upper end of the ferrule is generally suspended or placed flat on the workbench. The side wall of the optical cable is not fixed, or a simple iron bracket is used to tie the optical cables together and then the polishing of the end of the ferrule is started. When using the above methods and tooling for optical cable polishing, for the unfixed optical cable, when it is polished without cable sheath protection, the colored optical fibers are easily broken under the action of radial force; if several optical cables are roughly bundled together for polishing, the colored optical fibers located at about two hole positions on the upper edge of the polishing disc and without cable sheath protection are also easily broken. At the same time, the outer wall of the position where several optical cables are integrally bundled is also easily damaged, resulting in poor appearance. Summary of the Utility Model

[0004] Aiming at the deficiencies in the prior art, the utility model provides an MPO polishing optical cable fixing bracket and a mold for manufacturing an optical cable fixing block to solve the problem that the optical cable on the ferrule is not limited and fixed, and is easily scattered and bent during the polishing process, affecting the quality of the optical cable.

[0005] To achieve the above purpose, the basic scheme of the utility model is as follows: an MPO polishing optical cable fixing bracket, including a polishing disc, on which there are several polishing holes for inserting and installing ferrules, and further including:

[0006] An elastic optical cable fixing block;

[0007] A polishing bracket, one end of the polishing bracket is connected to the polishing disc, and the other end of the polishing bracket is connected to the optical cable fixing block.

[0008] The technical principle of the present utility model is as follows: When grinding the ferrule, first install the ferrule into the grinding hole of the grinding disc. At this time, the optical cable on the ferrule is arranged vertically upward. The optical cable is arranged along the grinding bracket and the side wall of the optical cable is installed on the optical cable fixing block. The elastic optical cable fixing block fixes the side wall of the optical cable. The elastic optical cable fixing block elastically cooperates with the side wall of the optical cable, so that the fixing part of the optical cable is protected and not easily damaged.

[0009] When the ferrule is driven by the grinding disc to rotate, the grinding disc synchronously drives the support frame and the optical cable fixing block to rotate, so that the optical cable also keeps neatly following during the grinding process, and the optical cable is not easily bent by the radial force.

[0010] Furthermore, the optical cable fixing block includes an inner mold and an elastic layer fixedly wrapped outside the inner mold. The inner mold is detachably connected to the grinding bracket.

[0011] Through the above setting, the setting of the inner mold makes the detachable connection between the optical cable fixing block and the grinding bracket more stable and reliable, so that the strength of the middle part of the entire optical cable fixing block is higher, and the elastic layer and the optical cable can be stably supported.

[0012] Furthermore, a plurality of embedding grooves for the side wall of the optical cable to be embedded are provided on the elastic layer.

[0013] Through the above setting, the setting of the embedding grooves makes it more convenient for the optical cable to be installed and limited in an embedded manner, so that the installation and limitation of the optical cable are more stable.

[0014] Furthermore, the embedding grooves correspond to the grinding holes one by one; or, the embedding grooves are vertically opposite to the grinding holes one by one.

[0015] Through the above setting, when the ferrule and the optical cable are installed, the ferrule and the optical cable are in a vertically corresponding state one by one, so that adjacent two optical cables are less likely to interfere during the rotation and grinding process, reducing the risk of the optical cable breaking.

[0016] Furthermore, the axis of the grinding bracket is perpendicular to the end faces of the grinding disc and the optical cable fixing block, or the grinding bracket, the grinding disc and the optical cable fixing block are coaxially arranged.

[0017] Through the above setting, the grinding bracket is coaxially supported between the optical cable fixing block and the grinding disc, so that the optical cables on the circumference of the optical cable fixing block are vertically supported evenly and stably, making the installation of the optical cable more stable.

[0018] Furthermore, the optical cable fixing block includes two identical sector-shaped fixing blocks, and a plurality of embedding grooves vertically penetrate through the arc surfaces of the sector-shaped fixing blocks.

[0019] Through the above setting, the embedding grooves can be distributed at the edge of the sector-shaped fixing block close to the arc surface, facilitating the optical cable to be embedded into the embedding grooves and making the embedding and fixing operation more convenient.

[0020] Furthermore, one side of the cross-sectional profile of the clamping groove is in the shape of a dovetail groove, and the other side is in the shape of an arc. The side with the maximum width of the dovetail groove-shaped clamping groove is coplanar with the outer wall of the sector-shaped fixing block. The side with the minimum width of the dovetail groove-shaped clamping groove and the diameter of the arc-shaped clamping groove are both less than or equal to the diameter of the cable.

[0021] With the above settings, after the optical cable passes through the dovetail groove-shaped part of the clamping groove, it is clamped to the arc-shaped part, and the elastic layer can deform to stably clamp the side wall of the optical cable.

[0022] The present utility model also aims to provide a mold for manufacturing an optical cable fixing block, which includes a bottom plate, an outer mold, and an inner mold. The inner mold is located inside the outer mold, the outer mold is installed on the bottom plate, and the inner mold is located on the outer mold or the bottom plate. The bottom plate, the outer mold, and the inner mold enclose a forming cavity required for the elastic layer.

[0023] With the above settings, the inner mold can cooperate with the bottom plate and the outer mold to facilitate the formation of the forming cavity. By placing and solidifying the raw material for forming the elastic layer in the forming cavity, an elastic layer can be formed on the inner mold, and the formation of the entire optical cable fixing block is simple and convenient.

[0024] Furthermore, it also includes an anti-blocking rod. A connection hole connected to the grinding bracket is provided on the side of the inner mold away from the bottom plate, and the anti-blocking rod is in covering contact or detachably connected to the connection hole of the inner mold.

[0025] With the above settings, the anti-blocking rod can protect the connection hole, facilitating the stable connection between the inner mold and the grinding bracket through the connection hole and also facilitating the precise forming of the elastic layer.

[0026] Furthermore, a jacking protrusion is provided between the bottom plate and the inner mold, and the jacking protrusion is fixedly connected to the bottom plate;

[0027] Or, a forming gap communicating with the forming cavity is provided between the side of the inner mold away from the arc surface of the sector-shaped fixing block and the inner wall of the outer mold;

[0028] Or, a number of glue inlet holes are provided on the inner mold.

[0029] With the above settings, both the forming gap and the jacking protrusion can make the raw material of the elastic layer more completely wrap around the inner mold; at the same time, when the elastic layer is being formed, part of the silica gel passes through the glue inlet holes of the inner mold, realizing a more stable and closer fit between the inner mold and the elastic layer, and making the finished product accuracy and strength of the optical cable fixing block greater. Description of the Drawings

[0030] Figure 1 It is an axonometric schematic diagram of the MPO grinding optical cable fixing bracket in Embodiment 1 of the present utility model.

[0031] Figure 2 It is an axonometric schematic diagram of the MPO grinding optical cable fixing bracket in Embodiment 1 of the present utility model.

[0032] Figure 3 It is an axonometric schematic diagram of a mold for manufacturing an optical cable fixing block in Embodiment 2 of the present utility model.

[0033] Figure 4 It is an exploded view of a mold for manufacturing an optical cable fixing block in Embodiment 2 of the present utility model.

[0034] Figure 5 It is a top view of a mold for manufacturing an optical cable fixing block in Embodiment 2 of the present utility model.

[0035] Figure 6 It is Figure 5 a cross-sectional view taken along line A-A in

[0036] In the above-mentioned drawings: grinding disc 10, grinding holes 101, protruding columns 102, locking holes 103, optical cable fixing block 20, sector fixing block 201, elastic layer 202, connection holes 203, clamping grooves 204, grinding bracket 30, "U"-shaped groove 301, bottom plate 401, jacking protrusion 402, outer mold 403, anti-blocking rod 404, inner mold 405, glue inlet hole 406. Specific embodiments

[0037] The technical solutions in the present utility model will be further described below in conjunction with the drawings and embodiments.

[0038] Embodiment 1

[0039] This embodiment is basically as Figure 1 and Figure 2 shown. An MPO grinding optical cable fixing bracket is proposed in the embodiment of the present utility model, which includes a grinding disc 10, an elastic optical cable fixing block 20 and a grinding bracket 30. The grinding disc 10 is an MT grinding disc 10, and a plurality of grinding holes 101 for inserting and installing ferrules are provided on the grinding disc 10, and the plurality of grinding holes 101 are arranged circumferentially around the grinding disc 10.

[0040] As Figure 1 and 2 shown, a protruding column 102 is integrally formed coaxially at the center of the upper side of the grinding disc 10. The lower end of the grinding bracket 30 is coaxially inserted outside the protruding column 102. A locking hole 103 is radially arranged on the side wall of the protruding column 102. A "U"-shaped groove 301 that can coincide with the locking hole 103 is provided at the lower end of the grinding bracket 30, and a pin is detachably installed at the locking hole 103 and the "U"-shaped groove 301.

[0041] As Figure 1 and 2As shown, the optical cable fixing block 20 includes two identical sector-shaped fixing blocks 201. The optical cable fixing block 20 includes an inner mold 405 and an elastic layer 202 fixedly wrapped outside the inner mold 405. The elastic layer 202 is a silicone layer. The upper end of the grinding bracket 30 is in the shape of two branch brackets, and a connection hole 203 vertically connected to the top end of the grinding bracket 30 is provided on the inner mold 405.

[0042] As Figure 1 shown, the axis of the grinding bracket 30 is perpendicular to the end faces of the grinding disc 10 and the optical cable fixing block 20, and the grinding bracket 30, the grinding disc 10, and the optical cable fixing block 20 are coaxially arranged; a number of clamping grooves 204 for clamping the side wall of the optical cable are provided on the elastic layer 202. The clamping grooves 204 are vertically opposite to the grinding holes 101 one by one, and a number of clamping grooves 204 vertically penetrate through the arc surface of the sector-shaped fixing block 201.

[0043] At the same time, as Figure 1 shown, one side of the cross-sectional contour of the clamping groove 204 is in the shape of a dovetail groove, and the other side of the cross-sectional contour of the clamping groove 204 is in the shape of an arc. The side with the largest width of the clamping groove 204 in the shape of a dovetail groove is coplanar with the outer wall of the sector-shaped fixing block 201. The side with the smallest width of the clamping groove 204 in the shape of a dovetail groove and the diameter of the clamping groove 204 in the shape of an arc are both less than or equal to the diameter of the cable.

[0044] When the MPO grinding optical cable fixing bracket in this embodiment is in use, the grinding bracket 30 is installed on the convex column 102, the "U"-shaped groove 301 coincides with the locking hole 103, and a plug is installed at the "U"-shaped groove 301 and the locking hole 103 to realize the connection limit of the grinding bracket 30. Then, the sector-shaped fixing block 201 is installed on the two tops at the upper end of the grinding bracket 30 through the connection hole 203. Due to the installation limit of the grinding bracket 30, the installation position of the sector-shaped fixing block 201 is also locked, so that the clamping grooves 204 on the elastic layer 202 of the sector-shaped fixing block 201 are vertically opposite to the grinding holes 101 one by one.

[0045] Then, the ferrule to be ground is installed at the grinding hole 101 of the grinding disc 10, and the optical cable on the corresponding ferrule is clamped and installed in the clamping groove 204. The optical cable passes through the dovetail groove-shaped part of the clamping groove 204 and is clamped to the arc-shaped part. The elastic layer 202 can deform to stably clamp the side wall of the optical cable, so that the outer wall of the optical cable will not be damaged, and the optical cable is kept in a vertical straight state. When grinding the end of the ferrule, the optical cable is kept in a stable vertical state under the limit of the elastic layer 202, avoiding twisting and breaking of the optical cable.

[0046] Embodiment 2

[0047] The difference between Embodiment 2 and Embodiment 1 is basically as shown in the appendix Figures 3 - 6As shown in the figure, a mold for manufacturing an optical cable fixing block 20 is provided, which includes a bottom plate 401, an outer mold 403, a plugging prevention rod 404, and an inner mold 405. The inner mold 405 is located inside the outer mold 403. The outer mold 403 is detachably mounted on the bottom plate 401 through bolts. The inner mold 405 is placed on the bottom plate 401. There is a jacking protrusion 402 between the bottom plate 401 and the inner mold 405, and the jacking protrusion 402 is fixedly connected to the bottom plate 401. The bottom plate 401, the outer mold 403, and the inner mold 405 enclose a forming cavity required for the elastic layer 202.

[0048] As Figure 4 and 6 shown in the figure, the plugging prevention rod 404 covers and abuts against the upper side of the connection hole 203 of the inner mold 405, and the jacking protrusion 402 covers and abuts against the lower side of the connection hole 203 of the inner mold 405.

[0049] At the same time, as Figure 5 and 6 shown in the figure, there is a forming gap communicating with the forming cavity between the side of the inner mold 405 away from the arc surface of the sector fixing block 201 and the inner wall of the outer mold 403.

[0050] In addition, as Figure 6 shown in the figure, there are several glue inlet holes 406 on the inner mold 405, and the several glue inlet holes 406 penetrate through the inner mold 405 staggeredly.

[0051] When the mold for manufacturing the optical cable fixing block 20 in this embodiment is in use, the inner mold 405 is installed and placed inside the outer mold 403, and the connection hole 203 on the inner mold 405 is blocked by the jacking protrusion 402, and the upper side of the connection hole 203 of the inner mold 405 is blocked by the plugging prevention rod 404, so as to prevent the connection hole 203 where the inner mold 405 is connected to the grinding bracket 30 from being blocked by silica gel. At the same time, there is a forming gap communicating with the forming cavity between the side of the inner mold 405 away from the arc surface of the sector fixing block 201 and the inner wall of the outer mold 403, which is convenient for the subsequently formed elastic layer 202 to wrap the outer wall of the inner mold 405, making the cooperation between the inner mold 405 and the elastic layer 202 more stable.

[0052] Then, silica gel is poured into the forming cavity. The silica gel cooperates with the forming cavity to form the elastic layer 202. At the same time, part of the silica gel passes through the glue inlet holes 406 of the inner mold 405, realizing a more stable and closer cooperation between the inner mold 405 and the elastic layer 202, and making the finished product accuracy and strength of the optical cable fixing block 20 both greater.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. MPO polished fiber optic cable fixing bracket, including a polishing disc, on which there are several polishing holes for inserting cores to be embedded and installed, characterized in that, It further includes: An elastic optical cable fixing block; A grinding bracket, one end of the grinding bracket is connected to the grinding disc, and the other end of the grinding bracket is connected to the optical cable fixing block.

2. The MPO polished fiber optic cable fixing bracket according to claim 1, wherein, The optical cable fixing block includes an inner mold and an elastic layer fixedly wrapped outside the inner mold, and the inner mold is detachably connected to the grinding bracket.

3. The MPO polished optical cable fixing bracket according to claim 2, characterized in that, A plurality of clamping grooves for clamping the side wall of the optical cable are provided on the elastic layer.

4. The MPO polished optical cable fixing bracket according to claim 3, wherein, The clamping grooves correspond to the grinding holes one by one; or, the clamping grooves are vertically opposite to the grinding holes one by one.

5. The MPO polished optical cable fixing bracket according to claim 4, characterized in that The axis of the grinding bracket is perpendicular to the end faces of the grinding disc and the optical cable fixing block, or the grinding bracket, the grinding disc and the optical cable fixing block are coaxially arranged.

6. The MPO polished optical cable fixing bracket according to claim 5, characterized in that, The optical cable fixing block includes two identical sector-shaped fixing blocks, and a plurality of clamping grooves vertically penetrate through the arc surfaces of the sector-shaped fixing blocks.

7. The MPO polished optical cable fixing bracket according to claim 6, wherein One side of the cross-sectional contour of the clamping groove is in the shape of a dovetail groove, and the other side of the cross-sectional contour of the clamping groove is in the shape of an arc. The side with the largest width of the dovetail groove-shaped clamping groove is coplanar with the outer wall of the sector-shaped fixing block, and the side with the smallest width of the dovetail groove-shaped clamping groove and the diameter of the arc-shaped clamping groove are both less than or equal to the diameter of the cable.

8. A mold for manufacturing an optical cable fixing block, characterized in that, It includes a bottom plate, an outer mold and the inner mold according to any one of claims 2-7. The inner mold is located inside the outer mold, the outer mold is installed on the bottom plate, the inner mold is located on the outer mold or the bottom plate, and the bottom plate, the outer mold and the inner mold enclose a forming cavity required for the elastic layer according to any one of claims 2-7.

9. The mold for manufacturing the optical cable fixing block according to claim 8, characterized in that, It further includes an anti-blocking rod. A connection hole connected to the grinding bracket is provided on the side of the inner mold away from the bottom plate, and the anti-blocking rod is in covering contact or detachably connected to the connection hole of the inner mold.

10. The mold for manufacturing the optical cable fixing block according to claim 9, characterized in that, A jacking protrusion is provided between the bottom plate and the inner mold, and the jacking protrusion is fixedly connected to the bottom plate; Or, a forming gap communicating with the forming cavity is provided between the side of the inner mold away from the arc surface of the sector-shaped fixing block and the inner wall of the outer mold; Or, a plurality of glue inlet holes are provided on the inner mold.

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