A polarization-maintaining optical fiber array fine-tuning fixture

Abstract

The utility model discloses a polarization-maintaining optical fiber array fine-tuning fixture, which belongs to the technical field of fixtures and comprises a base, the top of which is fixedly provided with an auxiliary adjustment component, the auxiliary adjustment component comprising a moving seat, a connecting plate, a microscope, an adjustment seat, a connecting rod and a sleeve, the top of the base is slidably connected with the moving seat, the top of the base is symmetrically fixedly connected with a connecting plate for limiting the moving seat, the top of the base is fixedly provided with a microscope for observing the optical fiber angle, the top of the moving seat is slidably connected with the adjustment seat, the beneficial effect achieved by the utility model is that the optical fiber array can be fine-tuned in the X-axis and the Y-axis through the auxiliary adjustment component, the flexibility of the fine-tuning of the polarization-maintaining optical fiber array is improved, at the same time, the sleeve, the placement plate and the optical fiber array can be driven to move by rotating the connecting rod, the height thereof can be adjusted, the connection with the microscope is convenient and fast, and the working efficiency of the polarization-maintaining optical fiber array processing is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a polarization-maintaining optical fiber array fine-tuning clamp. Background Art

[0002] Polarization-maintaining fiber is a special single-mode optical fiber that has the ability to transmit polarized light while maintaining the polarization direction. In interferometric fiber optic sensors based on optical coherence detection, the use of polarization-maintaining fiber can ensure that the linear polarization direction remains unchanged and improve the coherent signal-to-noise ratio to achieve high-precision measurement of physical quantities. In order to improve product production accuracy, fine-tuning fixtures are required to assist in production.

[0003] To this end, the China Patent Network has disclosed a polarization-maintaining optical fiber positioning fixture with application number 202021412929.2, which corresponds to the core segment and tail segment of the polarization-maintaining optical fiber respectively through the core positioning part and the optical fiber adjustment device, wherein the core positioning part fixes the core segment in the circumferential direction, and the optical fiber adjustment device rotates the tail segment after fixing the tail segment, and then aligns the camera with the adjustment area to observe the rotation angle of the tail segment relative to the core segment in real time, wherein the camera has the characteristics of high sensitivity, resistance to strong light and small distortion, the optical fiber adjustment device can rotate within a range of 360°, and can be observed through the camera, with an adjustment accuracy of up to 1°, which greatly reduces the offset angle of the polarization-maintaining optical fiber when the connector is aligned, and improves the product yield, the core positioning part includes a first support seat, and a protrusion is provided on the first support seat, the protrusion is used to cooperate with the groove on the core to limit the rotation of the core segment, and the first support seat can place the core stably, thereby ensuring the adjustment accuracy of the offset angle.

[0004] Although the above application meets the user's needs to a certain extent, there are still certain defects in the use process. The specific problems are as follows: since the polarization-maintaining fiber array not only needs to be rotated to adjust the angle during adjustment, but also needs to be fine-tuned in other directions to ensure the product processing accuracy, the flexibility and work efficiency of the polarization-maintaining fiber array fine-tuning are reduced. Based on this, the utility model designs a polarization-maintaining fiber array fine-tuning fixture to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a polarization-maintaining optical fiber array fine-tuning fixture to solve the problem raised in the above background technology that the polarization-maintaining optical fiber array not only needs to be rotated to adjust the angle during adjustment, but also needs to be fine-tuned in other directions to ensure product processing accuracy, which reduces the flexibility and work efficiency of the polarization-maintaining optical fiber array fine-tuning.

[0006] To achieve the above object, the utility model provides the following technical solutions: a polarization-maintaining optical fiber array fine-tuning fixture, comprising a base, an auxiliary adjustment component is fixedly installed on the top of the base, and the auxiliary adjustment component comprises a moving seat, a connecting plate, a microscope, an adjustment seat, a connecting rod and a sleeve;

[0007] The top of the base is slidably connected to a moving seat, the top of the base is symmetrically fixedly connected to a connecting plate for limiting the moving seat, the top of the base is fixedly installed with a microscope for observing the optical fiber angle, the top of the moving seat is slidably connected to an adjustment seat, the inside of the adjustment seat is rotatably connected to a connecting rod for adjusting the height of the optical fiber, the outer side of the connecting rod is threaded with a sleeve, and the optical fiber array can be fine-tuned in the X-axis and Y-axis, thereby improving the flexibility of fine-tuning the polarization-maintaining optical fiber array;

[0008] A positioning and rotating assembly is fixedly installed on the top end of the sleeve, and the positioning and rotating assembly includes a mounting frame, a positioning plate, a placement plate and an annular plate;

[0009] A placement plate is provided at the top of the sleeve, and mounting frames are slidably connected on both sides of the placement plate. A positioning plate for fixing the top of the optical fiber array is provided inside the mounting frame, and an annular plate is equidistantly rotatably connected to one side of the placement plate, which can clamp and fix the optical fiber array to prevent displacement of the optical fiber array during processing.

[0010] Preferably, the auxiliary adjustment assembly further includes a first gear, a moving plate, a driving motor and a screw rod;

[0011] A driving motor is fixedly installed inside the moving seat, and the output shaft of the driving motor is fixedly connected to a first gear. The top end of the first gear is meshedly connected to a moving plate that drives the adjustment seat to move, and a lead screw is rotatably connected inside the moving seat.

[0012] Preferably, the positioning and rotating assembly further comprises a fixing plate, a second gear and a threaded rod;

[0013] A fixing plate is arranged inside the annular plate, a second gear is meshedly connected to the bottom end of the annular plate, and a threaded rod is threadedly connected to the inside of the mounting frame.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. Through the auxiliary adjustment component, the optical fiber array can be fine-tuned on the X-axis and Y-axis, which improves the flexibility of fine-tuning the polarization-maintaining optical fiber array. At the same time, by rotating the connecting rod, the sleeve, placement plate and optical fiber array can be moved to adjust their height, which is convenient and fast to dock with the microscope, thereby improving the work efficiency of polarization-maintaining optical fiber array processing.

[0016] 2. By positioning the rotating assembly, the optical fiber array can be clamped and fixed to prevent displacement of the optical fiber array during processing. At the same time, by rotating the second gear, the annular plate and a single optical fiber can be driven to rotate and the optical fiber can be adjusted to the desired angle, thereby improving the practical performance of the annular plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 This is a structural schematic diagram of a polarization-maintaining optical fiber array fine-tuning fixture of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the auxiliary adjustment component of the utility model;

[0020] Figure 3 For this utility model Figure 2 The enlarged view of point A in the middle;

[0021] Figure 4 It is a structural schematic diagram of the positioning rotating assembly of the utility model.

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0023] 1. Base;

[0024] 2. Auxiliary adjustment component; 201. Moving seat; 202. Connecting plate; 203. Microscope; 204. Adjusting seat; 205. First gear; 206. Moving plate; 207. Connecting rod; 208. Sleeve; 209. Driving motor; 210. Screw rod;

[0025] 3. Positioning rotating assembly; 301. Mounting frame; 302. Positioning plate; 303. Placement plate; 304. Ring plate; 305. Fixed plate; 306. Second gear; 307. Threaded rod. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-4 The utility model provides a technical solution: a polarization-maintaining optical fiber array fine-tuning fixture, comprising a base 1, an auxiliary adjustment component 2 is fixedly installed on the top of the base 1, and the auxiliary adjustment component 2 comprises a moving seat 201, a connecting plate 202, a microscope 203, an adjustment seat 204, a connecting rod 207 and a sleeve 208;

[0028] The top of the base 1 is slidably connected with a moving seat 201, and the moving seat 201 is slidably connected with a connecting plate 202 through a moving block, so as to ensure the stability of the movement of the moving seat 201. The top of the base 1 is symmetrically fixedly connected with a connecting plate 202 for limiting the moving seat 201. A microscope 203 for observing the optical fiber angle is fixedly installed on the top of the base 1. The top of the moving seat 201 is slidably connected with an adjusting seat 204. The inside of the adjusting seat 204 is rotatably connected with a connecting rod 207 for adjusting the height of the optical fiber. The outer side of the connecting rod 207 is fixedly sleeved with a bevel gear set, which is composed of two mutually meshing bevel gears. One side of the bevel gear set is fixedly connected with a rotating rod, so as to adjust the height of the optical fiber array. The outer side of the connecting rod 207 is threadedly sleeved with a sleeve 208.

[0029] A positioning rotating assembly 3 is fixedly mounted on the top of the sleeve 208, and the positioning rotating assembly 3 includes a mounting frame 301, a positioning plate 302, a placement plate 303 and an annular plate 304;

[0030] A placing plate 303 is provided at the top of the sleeve 208, and mounting frames 301 are slidably connected to both sides of the placing plate 303. A positioning plate 302 for fixing the top of the optical fiber array is provided inside the mounting frame 301. An annular plate 304 is equidistantly rotatably connected to one side of the placing plate 303. A hydraulic rod is provided inside the annular plate 304, and the output shaft of the hydraulic rod is fixedly connected to the fixing plate 305, so as to drive the annular plate 304 and a single optical fiber to rotate and adjust the optical fiber to a desired angle.

[0031] The auxiliary adjustment assembly 2 further includes a first gear 205, a moving plate 206, a driving motor 209 and a screw rod 210;

[0032] A driving motor 209 is fixedly installed inside the movable seat 201, and the driving motor 209 is electrically connected to the output end of the external power supply. The output shaft of the driving motor 209 is fixedly connected to the first gear 205, and the top of the first gear 205 is meshingly connected to a moving plate 206 that drives the adjustment seat 204 to move. The top of the moving plate 206 is fixedly connected to the adjustment seat 204, which is convenient for driving the adjustment seat 204 and the optical fiber array to move. The outer side of the lead screw 210 is threadedly connected to the movable seat 201, which is convenient for adjusting the distance between the optical fiber array and the microscope 203 according to the height of the optical fiber. The movable seat 201 is internally rotatably connected with the lead screw 210.

[0033] According to the length of the optical fiber array, the screw rod 210 is rotated, and the screw rod 210 drives the moving seat 201 to move. At this time, the moving seat 201 drives the moving block to slide inside the connecting plate 202 to ensure the stability of the movement of the moving seat 201. After moving to a suitable position, the microscope 203 observes the angle and orientation of the optical fiber, and the driving motor 209 is started. The driving motor 209 drives the first gear 205 to rotate. The first gear 205 drives the moving plate 206 and the adjustment seat 204 to move through the gear on the surface, and aligns the orientation with the microscope 203, so as to facilitate fine-tuning and observation of single optical fibers at different positions. Rotating the rotating rod can drive the bevel gear set to rotate, and the bevel gear set drives the connecting rod 207 to rotate. The connecting rod 207 drives the sleeve 208, the placement plate 303 and the optical fiber array to move, and adjust their heights, so as to achieve multi-directional fine-tuning of the optical fiber array and improve the working efficiency of the polarization-maintaining optical fiber array processing.

[0034] The positioning and rotating assembly 3 further includes a fixing plate 305, a second gear 306 and a threaded rod 307;

[0035] A fixing plate 305 is provided inside the annular plate 304, and a second gear 306 is meshedly connected to the bottom end of the annular plate 304. A threaded rod 307 is threadedly connected to the inside of the mounting frame 301, and the bottom end of the threaded rod 307 is rotatably connected to the top end of the positioning plate 302, so as to fix the optical fiber array and prevent it from shifting during processing.

[0036] The optical fiber array is placed on the placement plate 303 and passes through the annular plate 304. The hydraulic rod is started, and the hydraulic rod drives the fixing plate 305 to move to fix the outside of the optical fiber to ensure the fixing effect of the optical fiber array. The threaded rod 307 is rotated, and the threaded rod 307 drives the positioning plate 302 to move to fix the top of the optical fiber array to avoid displacement of the optical fiber array during processing and affect the product accuracy. At the same time, when it is necessary to adjust the angle of a single optical fiber, the second gear 306 is rotated, and the second gear 306 drives the annular plate 304 to rotate, and the annular plate 304 drives the single optical fiber to rotate, thereby completing the angle adjustment of the single optical fiber, thereby improving the flexibility of product processing.

[0037] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0038] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A polarization-maintaining optical fiber array fine-tuning fixture, comprising a base (1), characterized in that: An auxiliary adjustment component (2) is fixedly mounted on the top of the base (1), and the auxiliary adjustment component (2) comprises a moving seat (201), a connecting plate (202), a microscope (203), an adjustment seat (204), a connecting rod (207) and a sleeve (208); The top of the base (1) is slidably connected to a movable seat (201), the top of the base (1) is symmetrically fixedly connected to a connecting plate (202) for limiting the movable seat (201), the top of the base (1) is fixedly mounted with a microscope (203) for observing the angle of the optical fiber, the top of the movable seat (201) is slidably connected to an adjustment seat (204), the inside of the adjustment seat (204) is rotatably connected to a connecting rod (207) for adjusting the height of the optical fiber, and the outer side of the connecting rod (207) is threadedly sleeved with a sleeve (208); A positioning rotating assembly (3) is fixedly mounted on the top end of the sleeve (208), and the positioning rotating assembly (3) comprises a mounting frame (301), a positioning plate (302), a placement plate (303) and an annular plate (304); A placement plate (303) is provided at the top of the sleeve (208), and mounting frames (301) are slidably connected to both sides of the placement plate (303). A positioning plate (302) for fixing the top of the optical fiber array is provided inside the mounting frame (301), and a ring plate (304) is equidistantly rotatably connected to one side of the placement plate (303).

2. The polarization-maintaining optical fiber array fine-tuning fixture according to claim 1, characterized in that: The auxiliary adjustment assembly (2) further comprises a first gear (205), a moving plate (206), a driving motor (209) and a screw rod (210); A driving motor (209) is fixedly installed inside the movable seat (201); an output shaft of the driving motor (209) is fixedly connected to a first gear (205); a top end of the first gear (205) is meshingly connected to a moving plate (206) that drives the adjustment seat (204) to move; and a lead screw (210) is rotatably connected inside the movable seat (201).

3. The polarization-maintaining optical fiber array fine-tuning fixture according to claim 1, characterized in that: A bevel gear set is fixedly sleeved on the outer side of the connecting rod (207).

4. The polarization-maintaining optical fiber array fine-tuning fixture according to claim 2, characterized in that: The top end of the movable plate (206) is fixedly connected to the adjustment seat (204), and the outer side of the screw rod (210) is threadedly sleeved with the movable seat (201).

5. The polarization-maintaining optical fiber array fine-tuning fixture according to claim 1, characterized in that: The positioning and rotating assembly (3) further comprises a fixing plate (305), a second gear (306) and a threaded rod (307); A fixing plate (305) is provided inside the annular plate (304), a second gear (306) is meshedly connected to the bottom end of the annular plate (304), and a threaded rod (307) is threadedly connected to the inside of the mounting frame (301).

6. The polarization-maintaining optical fiber array fine-tuning fixture according to claim 5, characterized in that: The bottom end of the threaded rod (307) is rotatably connected to the top end of the positioning plate (302).

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