Stress region symmetry alignment fixture for polarization maintaining fiber array

Abstract

The utility model relates to optical fiber processing equipment technical field especially relates to a kind of stress zone symmetry calibration clamps of polarization maintaining fiber array.Its technical scheme includes base, the base is equipped with the placement slot for preventing optical fiber, the placement slot is in the shape of "V", the top of the base is equipped with multiple limit holes, the inner wall of the limit hole is equipped with limit slot, the top of the base is equipped with the extrusion structure for fixing optical fiber, the extrusion structure includes the support frame for installation, the lower portion of the support frame is equipped with the pressing plate for extrusion, the top of the support frame is equipped with the gear for driving and the handle for adjusting, the gear and handle are equipped with the ratchet wheel and pawl for locking between, the utility model is set by ratchet wheel, pawl, gear, toothed plate and stand column, the quick fixing of optical fiber can be realized, replace the mode of traditional screw extrusion fixed pressing plate, can simplify operation step, improve processing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of optical fiber processing equipment technology, and in particular to a stress zone symmetry calibration fixture for polarization-maintaining optical fiber arrays. Background Technology

[0002] Polarization-maintaining fiber arrays have wide applications in coherent optical communication, fiber optic gyroscopes, and other fields. During the fabrication of polarization-maintaining fibers, the symmetry of the stress regions has a crucial impact on their polarization-maintaining performance. The stress regions are structures introduced through special processes, and their function is to maintain the polarization state of light. The symmetry of the stress regions refers to the uniformity of their distribution across the fiber cross-section. Mechanical adjustment is one method for calibrating the symmetry of the stress regions in a polarization-maintaining fiber array. The fiber is fixed to a fixture, and then a uniform tension or pressure is applied to adjust the distribution of the stress regions.

[0003] Calibration fixtures typically fix the optical fiber by tightening screws on both sides of the equipment, which causes the pressure plate to move downward and apply downward pressure. Since multiple screws need to be turned during operation, the operation becomes more complicated and the processing efficiency is reduced. In view of the above reasons, this application proposes a stress zone symmetry calibration fixture for polarization-maintaining fiber arrays. Utility Model Content

[0004] The purpose of this invention is to address the problems existing in the background technology by proposing a stress zone symmetry calibration fixture for polarization-maintaining fiber arrays.

[0005] The technical solution of this utility model is: a stress zone symmetry calibration fixture for a polarization-maintaining fiber array, including a base, a placement groove for placing optical fibers on the base, the placement groove being "V" shaped, a plurality of limiting holes on the top of the base, a limiting groove on the inner wall of the limiting holes, and a compression structure for fixing the optical fibers on the top of the base.

[0006] The extrusion structure includes a support frame for installation, a pressure plate for extrusion is provided below the support frame, a gear for driving and a rotating handle for adjustment are provided at the top of the support frame, and a ratchet and a pawl for locking are provided between the gear and the rotating handle.

[0007] Optionally, a column is fixedly provided on the top of the pressure plate, and a toothed plate is fixedly provided on one side of the column, wherein the toothed plate and the gear mesh and drive each other.

[0008] Optionally, a rotating shaft is fixedly provided on both sides of the gear, and a vertical plate is movably provided at the ends of the two rotating shafts that are far apart from each other. The bottom of the two vertical plates is fixedly connected to the support frame.

[0009] Optionally, an adjusting rod is fixedly provided on one side of the handle, one end of the adjusting rod is located at the center of the handle, and the other end of the adjusting rod passes through the center of the ratchet and the upright plate in sequence and is fixedly connected to one of the rotating shafts.

[0010] Optionally, a rotating rod is fixedly provided on the back of the pawl, and a mounting seat is movably provided at the end of the rotating rod away from the pawl. The mounting seat is fixedly connected to the upright plate. A groove is provided on the mounting seat, and a coil spring is fixedly provided in the groove. The inner ring of the coil spring is fixedly sleeved on the rotating rod.

[0011] Optionally, the top of the pressure plate is provided with multiple connecting rods, and two limiting blocks are fixedly provided on the outside of the connecting rods, and the limiting blocks and limiting grooves are movably connected.

[0012] Optionally, a buffer pad is fixedly provided at the bottom of the pressure plate, and the buffer pad has honeycomb holes.

[0013] Compared with the prior art, the present invention has the following beneficial technical effects:

[0014] 1. This utility model, through the arrangement of ratchet, pawl, gear, toothed plate and column, can achieve rapid fixation of optical fiber, replacing the traditional method of screw pressing and fixing pressure plate, which can simplify the operation steps and improve processing efficiency.

[0015] 2. This utility model, through the setting of buffer pads and honeycomb holes, can improve the friction between the optical fiber and the pressure plate, and can compensate for the misalignment between the pressure plate and the optical fiber, ensuring the firmness of the positioning. Secondly, the honeycomb holes, together with the silicone buffer pads, can play a buffering and protective role when the pressure is too high, preventing the optical fiber from being squeezed and damaged. Attached Figure Description

[0016] Figure 1 A three-dimensional structural schematic diagram of this utility model is provided;

[0017] Figure 2 A three-dimensional structural diagram of the base in this utility model is provided;

[0018] Figure 3 An exploded view of the extrusion structure in this utility model is provided;

[0019] Figure 4 A cross-sectional structural diagram of the buffer pad in this utility model is provided.

[0020] Figure label:

[0021] 1. Base;

[0022] 2. Placement slot;

[0023] 3. Limiting hole;

[0024] 4. Limiting groove;

[0025] 5. Extrusion structure; 501. Support frame; 502. Column; 503. Pressure plate; 504. Toothed plate; 505. Vertical plate; 506. Gear; 507. Adjusting rod; 508. Ratchet; 509. Rotary handle; 510. Mounting base; 511. Rotating rod; 512. Pad; 513. Honeycomb hole; 514. Connecting rod; 515. Limiting block; 516. Buffer pad. Detailed Implementation

[0026] The technical solutions of this disclosure will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments.

[0027] The components of the embodiments of this disclosure, which are typically described and shown in the accompanying drawings, can be arranged and designed in a variety of different configurations. Therefore, the following detailed description of embodiments of this disclosure provided in the drawings is not intended to limit the scope of the claimed disclosure, but merely to illustrate selected embodiments of the disclosure.

[0028] Based on the embodiments in this disclosure, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this disclosure.

[0029] In the description of this disclosure, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0030] In the description of this disclosure, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0031] Example

[0032] like Figure 1-4As shown, the present invention proposes a stress zone symmetry calibration fixture for a polarization-maintaining fiber array, comprising a base 1, on which a placement groove 2 for preventing the fiber from moving is provided. The placement groove 2 is V-shaped, and the two side walls of the V-shaped placement groove 2 have a good constraint effect on the fiber, which can limit the movement of the fiber in the direction perpendicular to the plane of the V-shaped groove. When the fiber is subjected to external force in the vertical direction or when some operations involving vertical displacement are performed, the V-shaped groove can effectively prevent the fiber from jumping out or undergoing large vertical displacement, thereby providing a stable fixing environment for the fiber and helping to maintain the stability of the optical and mechanical properties of the fiber. The top of the base 1 is provided with multiple limiting holes 3, and the inner wall of the limiting holes 3 is provided with limiting grooves 4. The top of the base 1 is provided with a compression structure 5 for fixing the fiber.

[0033] The extrusion structure 5 includes a support frame 501 for installation. A pressure plate 503 for extrusion is located below the support frame 501. Multiple connecting rods 514 are located on the top of the pressure plate 503, guiding the pressure plate 503 and improving its stability during movement. Two limiting blocks 515 are fixedly attached to the outside of each connecting rod 514, and these limiting blocks 515 are movably connected to limiting grooves 4. A gear 506 for driving and a rotating handle 509 for adjustment are located on the top of the support frame 501. An adjusting rod 507 is fixedly attached to one side of the rotating handle 509, with one end of the adjusting rod 507... At the center of the handle 509, the other end of the adjusting rod 507 passes through the center of the ratchet 508 and the upright plate 505 and is fixedly connected to one of the rotating shafts. Rotating shafts are fixedly provided on both sides of the gear 506. Upright plates 505 are movably provided at the ends of the two rotating shafts that are far apart. The bottoms of the two upright plates 505 are fixedly connected to the support frame 501. A column 502 is fixedly provided on the top of the pressure plate 503. A toothed plate 504 is fixedly provided on one side of the column 502. The toothed plate 504 meshes with the gear 506. A ratchet 508 and a pawl 512 for locking are provided between the gear 506 and the handle 509. A rotating rod 511 is fixedly provided on the back of the pawl 512. A mounting seat 510 is movably provided at the end of the rotating rod 511 away from the pawl 512. The mounting seat 510 is fixedly connected to the upright plate 505. A groove is provided on the mounting seat 510, and a coil spring is fixedly provided in the groove. The inner ring of the coil spring is fixedly sleeved on the rotating rod 511.

[0034] A buffer pad 516 is fixedly provided at the bottom of the pressure plate 503. The buffer pad 516 has honeycomb holes 513 inside. The buffer pad 516 is made of silicone. The buffer pad 516 can not only improve the friction between the pressure plate 503 and the optical fiber, but also make up for the misalignment between the pressure plate 503 and the optical fiber, ensuring the firmness of the positioning. The honeycomb holes 513, together with the silicone buffer pad 516, can play a buffering and protective role when the pressure is too high, preventing the optical fiber from being squeezed and damaged.

[0035] In this embodiment, when it is necessary to fix the optical fiber, the optical fiber is placed into the placement slot 2. Then, the handle 509 is rotated counterclockwise. The handle 509 drives the ratchet 508 and gear 506 through the adjusting rod 507. The gear 506 then drives the column 502 to move down through the toothed plate 504. The column 502 then drives the pressure plate 503 to move down. When the ratchet 508 rotates, the outer tooth groove will push the pawl 512 outward to separate it from the current tooth groove. When the next tooth groove moves to the position of the end of the pawl 512, the coil spring causes the rotating rod 511 to reset. The rotating rod 511 then drives the ratchet 508 to move down. The pawl 512 engages in the tooth groove of the ratchet 508 to achieve one-way locking of the ratchet 508. At this time, the column 502 cannot move upward. Once the buffer pad 516 at the bottom of the pressure plate 503 is in contact with and fixes the optical fiber, the rotation of the handle 509 can be stopped. When it is necessary to remove the optical fiber from the placement slot 2, pull the pawl 512 downward to separate it from the tooth groove of the ratchet 508, and then rotate the handle 509 clockwise. The handle 509 causes the column 502 to move upward, and the column 502 drives the pressure plate 503 to move upward. Once the buffer pad 516 separates from the optical fiber, the optical fiber can be removed.

[0036] The above specific embodiments are merely several optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A stress region symmetry calibration fixture for a polarization-maintaining fiber array, comprising a base (1), wherein the base (1) is provided with a placement slot (2) for placing optical fibers, characterized in that: The placement slot (2) is V-shaped, the top of the base (1) is provided with multiple limiting holes (3), the inner wall of the limiting hole (3) is provided with a limiting groove (4), and the top of the base (1) is provided with an extrusion structure (5) for fixing optical fibers. The extrusion structure (5) includes a support frame (501) for installation, a pressure plate (503) for extrusion is provided below the support frame (501), a gear (506) for driving and a rotating handle (509) for adjustment are provided at the top of the support frame (501), and a ratchet (508) and a pawl (512) for locking are provided between the gear (506) and the rotating handle (509).

2. The stress region symmetry calibration fixture for a polarization-maintaining fiber array according to claim 1, characterized in that, A column (502) is fixedly provided on the top of the pressure plate (503), and a toothed plate (504) is fixedly provided on one side of the column (502). The toothed plate (504) and the gear (506) mesh and drive each other.

3. The stress region symmetry calibration fixture for a polarization-maintaining fiber array according to claim 1, characterized in that, Both sides of the gear (506) are fixedly provided with rotating shafts, and the ends of the two rotating shafts that are far apart are movably provided with upright plates (505). The bottoms of the two upright plates (505) are fixedly connected to the support frame (501).

4. The stress region symmetry calibration fixture for a polarization-maintaining fiber array according to claim 3, characterized in that, An adjusting rod (507) is fixedly provided on one side of the handle (509). One end of the adjusting rod (507) is located at the center of the handle (509), and the other end of the adjusting rod (507) passes through the center of the ratchet (508) and the upright plate (505) in sequence and is fixedly connected to one of the shafts.

5. A stress region symmetry calibration fixture for a polarization-maintaining fiber array according to claim 3, characterized in that, A rotating rod (511) is fixedly provided on the back of the pawl (512). A mounting seat (510) is movably provided at one end of the rotating rod (511) away from the pawl (512). The mounting seat (510) is fixedly connected to the upright plate (505). A groove is provided on the mounting seat (510). A coil spring is fixedly provided in the groove. The inner ring of the coil spring is fixedly sleeved on the rotating rod (511).

6. The stress region symmetry calibration fixture for a polarization-maintaining fiber array according to claim 1, characterized in that, The top of the pressure plate (503) is provided with multiple connecting rods (514), and two limiting blocks (515) are fixedly provided on the outside of the connecting rods (514). The limiting blocks (515) and the limiting grooves (4) are movably connected.

7. A stress region symmetry calibration fixture for a polarization-maintaining fiber array according to claim 1, characterized in that, The bottom of the pressure plate (503) is fixedly provided with a buffer pad (516), and the buffer pad (516) is provided with honeycomb holes (513).

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