Auxiliary V-shaped groove for FA (Fiber Array) assembly

Abstract

The utility model discloses an auxiliary V-shaped groove for FA optical fiber array assembly, relates to the technical field of optical fiber communication, aims to solve the technical problem that the existing auxiliary V-shaped groove for FA optical fiber array assembly is poor in optical fiber fixing effect, and comprises an auxiliary plate and a pre-positioning plate. The rectangular groove is formed in the position, corresponding to the auxiliary V-shaped groove, below the auxiliary plate, the round holes are formed in the four corners of the auxiliary plate and the four corners of the rectangular groove, then the anti-deflection structure is arranged in the rectangular groove, the round rods at the four corners of the rectangular frame in the anti-deflection structure penetrate through the corresponding round holes, and the diameter of the round holes needs to be the same as that of the round rods; and the top ends of the four groups of round rods are located above the auxiliary plate, so that when a person covers the auxiliary cover plate, the auxiliary cover plate firstly makes contact with the top ends of the four groups of round rods, and the four groups of round rods and the rectangular frame are combined into a whole, and under the cooperation of the four groups of round holes, the four groups of round rods can only keep the synchronous lifting effect.

Description

Technical Field

[0001] This utility model relates to the field of optical fiber communication technology, and more specifically, to an auxiliary V-groove for FA optical fiber array assembly. Background Technology

[0002] Fiber optic arrays (FAs) are components that arrange multiple optical fibers with high precision. They are widely used in optical communication, optical modules, and optical sensors. The core requirement is the flatness and alignment accuracy of the fiber end faces to ensure low-loss optical signal transmission. The auxiliary V-groove plays a role in positioning, supporting, and serving as a grinding reference, ensuring the accuracy of the final assembly. The steps for using the auxiliary V-groove are as follows (taking a 36-core fiber as an example): First, place the 36-core fiber into the pre-positioning V-groove of the pre-positioning plate. Second, assemble the pre-positioning cover plate with the pre-positioning plate and fix it with adhesive. Third, place the assembled FA into the auxiliary V-groove of the auxiliary plate, push the assembled pre-positioning plate, pre-positioning V-groove, and pre-positioning cover plate to the step of the auxiliary V-groove on the auxiliary plate, then cover it with the auxiliary cover plate and fix it with adhesive. Fourth, grind the FA at the front protrusion of the auxiliary V-groove until it reaches the front of the auxiliary V-groove.

[0003] In existing FA fiber array assembly auxiliary V-grooves, when positioning and fixing the fiber, after the fiber is placed into the auxiliary V-groove, the auxiliary cover plate is placed on the auxiliary V-groove and glue is applied to press the fiber in the auxiliary V-groove. However, the cover plate is prone to tilting when it is closed, which will cause uneven force on the fiber in each auxiliary V-groove. As a result, some fibers with less pressure will have slight wobbling at their ends after being fixed in the auxiliary V-groove, which will affect the flatness and alignment accuracy of the fiber end grinding. In view of this, we propose an auxiliary V-groove for FA fiber array assembly. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology, adapt to practical needs, and provide an auxiliary V-groove for FA fiber array assembly, so as to solve the technical problem that the auxiliary V-groove for FA fiber array assembly has a poor fiber fixing effect.

[0005] To solve the above technical problems, this utility model provides the following technical solution: an auxiliary V-groove for FA fiber array assembly, comprising an auxiliary plate and a prepositioning plate. An auxiliary V-groove is arranged on one side of the top of the auxiliary plate, and an auxiliary cover plate is fitted over the auxiliary V-groove on the top of the auxiliary plate. The prepositioning plate is placed on the other side of the top of the auxiliary plate, and a prepositioning V-groove is arranged on the top of the prepositioning plate. A prepositioning cover plate is fitted over the prepositioning plate. A rectangular groove is arranged at the bottom of the auxiliary plate corresponding to the auxiliary V-groove. Circular holes are opened at the four corners of the top of the rectangular groove. An anti-skew structure is arranged inside the rectangular groove. The anti-skew structure includes a rectangular frame and a round rod. The rectangular frame is elastically arranged at the top of the rectangular groove, and the round rod is arranged at the four corners of the top of the rectangular frame. The round rod passes through the circular hole, and the diameter of the round rod is the same as the diameter of the circular hole.

[0006] The inner wall of the circular hole is provided with several sets of mounting grooves at equal intervals, and ball bearings are rolled in the mounting grooves.

[0007] Preferably, the mounting groove is a quarter-turn spiral, and the four horizontal mounting grooves form a circular array.

[0008] Preferably, an X-mount bracket is arranged inside the rectangular frame, and a screw is arranged at the center of the X-mount bracket, with a top plate rotatably arranged at the top of the screw.

[0009] Preferably, springs are arranged at the four corners of the top of the rectangular frame, the springs are sleeved on the round rod, and the top of the springs are connected to the top of the rectangular groove.

[0010] Preferably, a buckle is arranged at the top of the round rod, and the bottom of the auxiliary cover plate has four openings at the four corners, with a buckle groove at one end of the opening.

[0011] Preferably, the top of the auxiliary plate has a step on one side of the auxiliary V-groove.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model involves creating a rectangular groove below the auxiliary plate, corresponding to the auxiliary V-shaped groove. Circular holes are located at the four corners of the auxiliary plate and the rectangular groove. An anti-skew structure is then arranged within the rectangular groove. In this anti-skew structure, the circular rods at the four corners of the rectangular frame pass through the corresponding circular holes. The diameter of the circular holes must be the same as the diameter of the circular rods. The tops of the four sets of circular rods are positioned above the auxiliary plate. Therefore, when the auxiliary cover is closed, the auxiliary cover will first contact the tops of the four sets of circular rods. Because the four sets of circular rods and the rectangular frame are combined as a whole, and with the cooperation of the four sets of circular holes, the four sets of circular rods can only maintain a synchronous lifting effect. Therefore, the auxiliary cover... When the plate descends via four sets of round rods, it maintains the parallelism of the auxiliary cover plate, ensuring equal pressure on the optical fibers within each auxiliary V-groove. Then, it is fixed by adhesive application, preventing misalignment during the closing of the auxiliary cover plate, which could lead to uneven pressure on the optical fibers within each auxiliary V-groove. Furthermore, during fiber end polishing, some fibers with lower pressure may experience slight wobbling, affecting the flatness and alignment accuracy of the fiber end polishing. This invention solves the technical problem of poor fiber fixation in current FA fiber array assembly auxiliary V-grooves. Therefore, this invention offers the advantage of better fiber fixation.

[0014] 2. This utility model also features several sets of mounting grooves equidistantly arranged on the inner wall of the circular hole. These mounting grooves are quarter-turn spirals, and ball bearings are rolled within them. Thus, the circular hole contacts the circular rod via the ball bearings, changing the sliding friction between the circular hole and the circular rod to rolling friction, reducing wear on both. Furthermore, when the circular rod rises, the ball bearings roll from the bottom to the top of the mounting groove; conversely, when the circular rod descends, the ball bearings roll from the top to the bottom. This ensures rolling friction between the ball bearings and the circular rod at different positions, preventing excessive localized wear caused by rolling friction in a single direction or position. Therefore, it effectively ensures the matching accuracy between the diameter of the circular rod and the circular hole, ensuring the synchronous lifting of the four sets of circular rods, and further guaranteeing the uniformity of fiber optic pressing within each auxiliary V-groove by the auxiliary cover plate. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the auxiliary plate, auxiliary cover plate, prepositioning plate, and prepositioning cover plate structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the installation of the auxiliary plate and anti-skew structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the anti-skew structure of this utility model;

[0019] Figure 5This is a schematic diagram of the cross-sectional structure of the auxiliary plate of this utility model;

[0020] Figure 6 For the present utility model Figure 5 Enlarged structural diagram at point A in the middle;

[0021] Figure 7 This is a partial cross-sectional structural diagram of the auxiliary cover plate of this utility model.

[0022] Explanation of the labels in the diagram:

[0023] 1. Auxiliary plate; 101. Rectangular groove; 102. Round hole; 103. Mounting groove; 104. Ball bearing; 2. Auxiliary cover plate; 201. Insert; 202. Buckle groove; 3. Auxiliary V-groove; 4. Step; 5. Pre-positioning plate; 6. Pre-positioning cover plate; 7. Pre-positioning V-groove; 8. Anti-skew structure; 9. Rectangular frame; 10. Round rod; 1001. Buckle block; 11. Spring; 12. X-mount bracket; 1201. Screw; 1202. Top plate. Detailed Implementation

[0024] like Figures 1 to 7 As shown, this utility model relates to an auxiliary V-groove for FA fiber array assembly, comprising an auxiliary plate 1 and a prepositioning plate 5. An auxiliary V-groove 3 is arranged on one side of the top of the auxiliary plate 1, and an auxiliary cover plate 2 is fitted over the auxiliary V-groove 3 on the top of the auxiliary plate 1. The prepositioning plate 5 is placed on the other side of the top of the auxiliary plate 1, and a prepositioning V-groove 7 is arranged on the top of the prepositioning plate 5. A prepositioning cover plate 6 is fitted over the prepositioning plate 5. A rectangular groove 101 is arranged at the bottom of the auxiliary plate 1 corresponding to the auxiliary V-groove 3, and round holes 1 are formed at the four corners of the top of the rectangular groove 101. 02. An anti-skew structure 8 is arranged inside the rectangular groove 101. The anti-skew structure 8 includes a rectangular frame 9 and a round rod 10. The rectangular frame 9 is elastically arranged at the top of the rectangular groove 101. The round rod 10 is arranged at the four corners of the top of the rectangular frame 9. The round rod 10 passes through the round hole 102, and the diameter of the round rod 10 is the same as the diameter of the round hole 102. Springs 11 are arranged at the four corners of the top of the rectangular frame 9. The springs 11 are sleeved on the round rod 10, and the top of the springs 11 is connected to the top of the rectangular groove 101. A step 4 is provided on the top of the auxiliary plate 1 on one side of the auxiliary V-shaped groove 3.

[0025] When positioning and fixing the optical fiber (taking a 36-core optical fiber as an example), the first step is to place the 36-core optical fiber into the prepositioning V-groove 7 of the prepositioning plate 5; the second step is to cover the prepositioning cover plate 5 with the prepositioning cover plate 6 and fix it with adhesive; the third step is to place the assembled FA into the auxiliary V-groove 3 of the auxiliary plate 1, and push it to the step 4 of the auxiliary plate 1 with the assembled prepositioning plate 5, prepositioning V-groove 7, and prepositioning cover plate 6. At this time, the 36-core optical fiber is symmetrically positioned in the auxiliary V-groove 3. Then, cover it with the auxiliary cover plate 2 and fix it with adhesive; the fourth step is to grind the FA at the front end of the auxiliary V-groove 3 until it reaches the front end of the auxiliary V-groove 3, thus completing the end face grinding work of the 36-core optical fiber.

[0026] When the auxiliary cover plate 2 is closed, it will first contact the top of the four sets of round rods 10. Because the four sets of round rods 10 and the rectangular frame 9 are combined into a whole, and with the cooperation of the four sets of round holes 102, the four sets of round rods 10 can only maintain a synchronous lifting effect. Therefore, when the auxiliary cover plate 2 descends through the four sets of round rods 10, it can keep the pressure of the auxiliary cover plate 2 on the optical fibers in each auxiliary V-groove 3 the same. Then, it is fixed by applying glue to avoid the situation where the auxiliary cover plate 2 is tilted when it is closed, which would cause the pressure of the auxiliary cover plate 2 on the optical fibers in each auxiliary V-groove 3 to be different. Then, when polishing the optical fiber end, some optical fibers with low pressure will wobble slightly, which will affect the flatness and accuracy of the optical fiber end polishing.

[0027] In an embodiment of this utility model, a number of sets of mounting grooves 103 are equidistantly provided on the inner wall of the circular hole 102, and rolling balls 104 are arranged in the mounting grooves 103; the mounting grooves 103 are spiral-shaped with one-quarter of a turn, and the four sets of horizontal mounting grooves 103 form a circular array.

[0028] The circular hole 102 contacts the circular rod 10 through the ball bearing 104, changing the sliding friction between the circular hole 102 and the circular rod 10 to rolling friction, reducing the wear of the circular hole 102 and the circular rod 10. When the circular rod 10 rises, the ball bearing 104 rolls from the bottom to the top of the mounting groove 103. Conversely, when the circular rod 10 falls, the ball bearing 104 rolls from the top to the bottom of the mounting groove 103. Therefore, it can be ensured that the ball bearing 104 and the circular rod 10 roll at different positions, thereby avoiding the situation where the ball bearing 104 and the circular rod 10 roll in a single direction or position, which would cause excessive local wear of the circular rod 10. Therefore, it can effectively ensure the matching accuracy of the diameter of the circular rod 10 and the circular hole 102, and ensure the synchronous lifting of the four sets of circular rods 10. This can further ensure the uniformity of the fiber optic pressing in each auxiliary V-groove 3 by the auxiliary cover plate 2.

[0029] Specifically, an X-mount bracket 12 is arranged inside the rectangular frame 9, and a screw 1201 is arranged at the center of the X-mount bracket 12, with a top plate 1202 rotatably arranged at the top of the screw 1201. After the rectangular frame 9 and the round rod 10 are lowered, the screw 1201 can be screwed so that the top plate 1202 of the screw 1201 presses against the top of the rectangular groove 101, thereby fixing the rectangular frame 9 and the round rod 10 and preventing the spring 11 from driving the rectangular frame 9 and the round rod 10 to reset and generate a reverse force on the auxiliary cover plate 2, which would affect the pressure-fixing effect of the auxiliary cover plate 2 on the optical fiber.

[0030] Furthermore, a buckle 1001 is arranged at the top of the round rod 10, and an insertion port 201 is opened at the four corners of the bottom of the auxiliary cover plate 2, and a buckle groove 202 is opened at one end of the insertion port 201. When the auxiliary cover plate 2 is closed, the insertion port 201 can be inserted into the top of the round rod 10, and the auxiliary cover plate 2 can be slid to insert the buckle 1001 into the buckle groove 202. After the auxiliary cover plate 2 is pressed and fixed, the top plate 1202 can be made to fit against the top of the rectangular groove 101 by turning the screw 1201, and then the auxiliary cover plate 2 can be fixed to facilitate subsequent glue application.

[0031] Working principle: This embodiment provides an auxiliary V-groove for FA fiber array assembly. First, when positioning and fixing the fiber (taking a 36-core fiber as an example), the first step is to place the 36-core fiber into the pre-positioning V-groove 7 of the pre-positioning plate 5; the second step is to cover the pre-positioning cover plate 5 with the pre-positioning cover plate 6 and fix it with adhesive; the third step is to place the assembled FA into the auxiliary V-groove 3 of the auxiliary plate 1, and push it to the step 4 of the auxiliary plate 1 using the assembled pre-positioning plate 5, pre-positioning V-groove 7, and pre-positioning cover plate 6. At this time, the 36-core fiber is symmetrically positioned in the auxiliary V-groove 3. Then, the auxiliary cover plate 2 is covered and fixed with adhesive; the fourth step is to grind the FA at the front end of the auxiliary V-groove 3 until it reaches the front end of the auxiliary V-groove 3, thus completing the end face grinding work of the 36-core fiber.

[0032] Secondly, when the auxiliary cover plate 2 is closed, the auxiliary cover plate 2 will first contact the top of the four sets of round rods 10. Because the four sets of round rods 10 and the rectangular frame 9 are combined into a whole, and with the cooperation of the four sets of round holes 102, the four sets of round rods 10 can only maintain the synchronous lifting effect. Therefore, when the auxiliary cover plate 2 descends through the four sets of round rods 10, it can keep the auxiliary cover plate 2 parallel and exert the same pressure on the optical fibers in each auxiliary V-groove 3. Then, it is fixed by applying glue to avoid the situation where the auxiliary cover plate 2 is tilted when it is closed, which would cause the auxiliary cover plate 2 to exert different pressure on the optical fibers in each auxiliary V-groove 3. Then, when polishing the optical fiber end, some optical fibers with low pressure will wobble slightly, which will affect the flatness and accuracy of the optical fiber end polishing.

[0033] Finally, the circular hole 102 contacts the circular rod 10 through the ball bearing 104, changing the sliding friction between the circular hole 102 and the circular rod 10 to rolling friction, reducing the wear of the circular hole 102 and the circular rod 10. When the circular rod 10 rises, the ball bearing 104 rolls from the bottom end to the top end of the mounting groove 103. Conversely, when the circular rod 10 falls, the ball bearing 104 rolls from the top end to the bottom end of the mounting groove 103. Therefore, it can be ensured that the ball bearing 104 and the circular rod 10 roll at different positions, thereby avoiding the situation where the ball bearing 104 and the circular rod 10 roll in a single direction or position, which would cause excessive local wear of the circular rod 10. Therefore, it can effectively ensure the matching accuracy of the diameter of the circular rod 10 and the circular hole 102, and ensure the synchronous lifting of the four sets of circular rods 10. This can further ensure the uniformity of the fiber optic pressing in each auxiliary V-groove 3 by the auxiliary cover plate 2.

[0034] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A FA fiber array assembly aid V-groove, characterized by, The utility model provides an auxiliary plate (1) and prepositioning plate (5) are included, one side of the top of auxiliary plate (1) is arranged with auxiliary V -shaped groove (3), the top of auxiliary plate (1) is covered with auxiliary cover plate (2) at auxiliary V -shaped groove (3), prepositioning plate (5) is placed on the other side of the top of auxiliary plate (1), the top of prepositioning plate (5) is arranged with prepositioning V -shaped groove (7), prepositioning cover plate (6) is covered on prepositioning plate (5), the bottom of auxiliary plate (1) is arranged with rectangular groove (101) with auxiliary V -shaped groove (3) corresponding, the top four corners of rectangular groove (101) are provided with round hole (102), the inside of rectangular groove (101) is arranged with anti -skewing structure (8), anti -skewing structure (8) includes rectangular frame (9) and round bar (10), rectangular frame (9) is arranged in the top of rectangular groove (101) elastically, round bar (10) is arranged in the top four corners of rectangular frame (9), round bar (10) penetrates round hole (102), and the diameter of round bar (10) is same with the diameter of round hole (102); The inner wall of the round hole (102) is equidistantly provided with a plurality of groups of mounting grooves (103), and the mounting grooves (103) are rollingly arranged with balls (104).

2. The FA fiber array assembly auxiliary V-groove according to claim 1, wherein, The mounting groove (103) is a spiral of one quarter of a circle, and the horizontal four groups of mounting grooves (103) constitute a circular array.

3. The FA fiber array assembly auxiliary V-groove according to claim 1, wherein, The rectangular frame (9) is arranged with an X mounting frame (12), and the center of the X mounting frame (12) is arranged with a screw rod (1201), and the top end of the screw rod (1201) is rotatably arranged with a top disc (1202).

4. The FA fiber array assembly auxiliary V-groove according to claim 1, wherein, The top four corners of the rectangular frame (9) are arranged with springs (11), the springs (11) are sleeved on the round bar (10), and the top end of the spring (11) is connected with the top of the rectangular groove (101).

5. The FA fiber array assembly auxiliary V-groove according to claim 1, wherein, The top end of the round bar (10) is arranged with a buckle block (1001), the bottom four corners of the auxiliary cover plate (2) are provided with sockets (201), and one end of the socket (201) is provided with a buckle groove (202).

6. The FA fiber array assembly auxiliary V-groove according to claim 1, wherein, The top of the auxiliary plate (1) is provided with a step (4) on one side of the auxiliary V-shaped groove (3).

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