Inclined jig for end detector

Abstract

The utility model comprises an inclined jig for an end detector, which comprises a fixed base, an optical fiber placing table arranged on the fixed base, and an end detector placing groove arranged on the fixed base, according to the utility model, when APC optical fibers are detected, the optical fibers placed on the surface of the optical fiber placing table can be entirely inclined through the inclined fixing table, at the moment, the ends of the optical fibers can be parallel to a detection port of an end detector, and an operator can realize butt joint of the optical fibers and the end detector at the moment; through a linear driving mechanism and a fixed inclined plate which are arranged on the inclined fixing table, an operator can adjust the inclination angle of the fixed inclined plate according to actual conditions so as to adapt to different inclination angle requirements of the optical fiber end face, and can also adjust the inclination error of the fixed inclined plate when the connecting seat and the end detector are not parallel, so that the optical fiber end face detection accuracy is improved. And smooth optical fiber detection is ensured.

Description

Technical Field

[0001] This utility model relates to the field of optical fiber testing technology, specifically to an inclined fixture for an end-of-line tester. Background Technology

[0002] Existing fiber optic end-face inspection instruments typically rely on optical imaging or interferometry principles, employing high-precision optical systems to perform non-contact inspections of the fiber end-face's morphology, scratches, contamination, and geometric parameters. During fiber inspection, the fiber under test must be fixed in a fixture, and a mechanical positioning mechanism ensures that the fiber end-face is precisely and perpendicularly aligned with the instrument's light source and imaging module. This guarantees that the detection light spot emitted by the light source is perpendicularly incident on the fiber end-face, and the reflected or transmitted light signal is received by an optical sensor. Algorithms then reconstruct the three-dimensional morphology of the end-face. Precise alignment between the fiber end-face and the light source is crucial for reliable inspection results. For conventional planar end-faces (such as UPC / PC type fibers), existing fixtures, through a planar reference surface and elastic clamping structure, can maintain the fiber end-face perpendicular to the detection optical path, thus achieving stable coupling of the optical signal.

[0003] With the increasing demands for reflection loss in fiber optic communication systems, angled physical contact (APC) fiber, due to its 8° tilt angle design, can significantly suppress Fresnel reflection (return loss ≤ -60dB) and is widely used in high-speed optical modules, fiber-to-the-home (FTTH), and long-distance transmission scenarios. This design reduces return loss and improves signal transmission quality. However, due to the presence of the APC endface, the fiber end is no longer flat but has a certain tilt angle, making it difficult for traditional end-of-line testing instruments to ensure accurate alignment between the fiber end and the equipment. Existing end-of-line testing instruments often cannot adapt to this angle change when processing APC endface fiber, resulting in the fiber end not being accurately aligned with the light source, thus affecting the effectiveness and reliability of the testing. Therefore, developing a new type of end-of-line testing instrument that can effectively address the characteristics of APC endface fiber has become an urgent need in the industry. Summary of the Invention

[0004] To solve the above problems, this utility model provides the following technical solution:

[0005] A tilting fixture for an end-of-line inspection instrument, comprising:

[0006] Fixed base;

[0007] An optical fiber placement stage includes a connector on the surface of a fixed base and an inclined fixing stage on the surface of the connector, wherein the inclined fixing stage has an inclined slope.

[0008] An end-of-line inspection device placement slot is provided on the surface of a fixed base, allowing the end-of-line inspection device to be placed inside it. When the end-of-line inspection device is placed in the end-of-line inspection device placement slot, the detection end of the end-of-line inspection device faces the surface of the inclined fixed platform.

[0009] When the optical fiber to be tested is placed on the surface of the inclined fixed stage, the end of the optical fiber is parallel to the light source of the end-of-line tester.

[0010] Based on the above technical solution, the present invention can be further improved as follows.

[0011] Furthermore, the connecting base consists of a connecting base mounted on a fixed base, a movable stage disposed on the connecting base, and an adjustment mechanism disposed between the connecting base and the movable stage. The movable stage can move on the connecting base under the action of the adjustment mechanism.

[0012] Furthermore, the inclined fixed platform consists of an adjusting base disposed on the surface of the moving platform, a fixed inclined plate disposed on the adjusting base, and a linear drive mechanism disposed between the adjusting base and the fixed inclined plate.

[0013] Furthermore, one end of the fixed inclined plate is connected to the surface of the adjusting base via a hinge.

[0014] Furthermore, the linear drive mechanism includes a top plate disposed on the surface of the adjusting base and in contact with the fixed inclined plate, an adjusting gear disposed inside the adjusting base, an adjusting shaft connected to the adjusting gear, and an adjusting knob connected to the adjusting shaft.

[0015] Furthermore, the surface of the adjusting base is provided with an opening for the top plate to extend into it and contact the adjusting gear, and the surface of the top plate is provided with locking teeth adapted to the adjusting gear.

[0016] Furthermore, both ends of the adjustment shaft extend to the outside of the adjustment base, and a fixing button is provided at the end of the adjustment shaft away from the adjustment knob. The fixing button can fix the position of the adjustment shaft on the adjustment base.

[0017] Furthermore, the adjustment knob has a scale on its surface, and the adjustment base has a pointer on its surface pointing to the scale on the adjustment knob. Beneficial effects

[0018] Compared with the prior art, this utility model, through its fiber optic placement stage, allows the fiber optic cable placed on its surface to be tilted during the testing of APC fiber optic cables via a tilting fixing stage. At this time, the fiber optic end can be parallel to the testing port of the end-of-line inspection instrument, allowing the operator to connect the fiber optic cable to the end-of-line inspection instrument. Simultaneously, through the linear drive mechanism and fixed inclined plate of the tilting fixing stage, the operator can adjust the tilt angle of the fixed inclined plate according to the actual situation, thereby adapting to different tilt angle requirements of the fiber optic end face. It can also adjust the tilt error of the fixed inclined plate when the connector and the end-of-line inspection instrument are not parallel, ensuring the smooth progress of fiber optic testing. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the side section structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the front section of the inclined fixing platform of the utility model;

[0022] Figure 3 This is a three-dimensional structural diagram of the tilting fixing platform of the utility model;

[0023] Figure 4 For utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0024] The attached diagram lists the components represented by each number as follows:

[0025] 1. Fixed base; 2. Fiber optic placement platform; 21. Connecting base; 211. Connecting base; 212. Moving platform; 213. Adjustment mechanism; 22. Inclined fixed platform; 221. Adjusting base; 222. Fixed inclined plate; 223. Top plate; 224. Adjusting gear; 225. Adjusting shaft; 226. Adjusting knob; 227. Fixed knob; 3. End-of-line inspection instrument placement slot. Detailed Implementation

[0026] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Several embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this utility model will be more thorough and complete.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0029] It should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the technical product is in use. They are only for the convenience of describing the technology 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 the technology.

[0030] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0031] Please see Figure 1-4 An inclined fixture for an end-of-line inspection device includes a fixed base 1, an optical fiber placement stage 2 disposed on the fixed base 1, and an end-of-line inspection device placement slot 3 disposed on the fixed base 1.

[0032] The fiber optic placement stage 2 includes a connector 21 disposed on the surface of the fixed base 1, and an inclined fixed stage 22 disposed on the surface of the connector 21. The inclined fixed stage 22 has an inclined slope on its surface. The end-of-line inspection device placement slot 3 is composed of three plates disposed on the fixed base 1, which allows the end-of-line inspection device to be placed inside it. When the end-of-line inspection device is placed in the end-of-line inspection device placement slot 3, the detection end of the end-of-line inspection device faces the surface of the inclined fixed stage 22. When the fiber to be inspected is placed on the surface of the inclined fixed stage 22, the end of the fiber is parallel to the light source of the end-of-line inspection device.

[0033] Specifically, the connecting base 21 is an adjustable base 221 commonly found in existing jigs, which can adjust its height or front and back position. The connecting base 21 consists of a connecting base 211 installed on a fixed base 1, a movable platform 212 provided on the connecting base 211, and an adjustment mechanism 213 provided between the connecting base 211 and the movable platform 212. The movable platform 212 can move on the connecting base 211 under the action of the adjustment mechanism 213.

[0034] Considering that there may be some errors in the overall use of the device, the tilting fixed platform 22 consists of an adjustment base 221 on the surface of the moving platform 212, a fixed inclined plate 222 on the adjustment base 221, and a linear drive mechanism between the adjustment base 221 and the fixed inclined plate 222. One end of the fixed inclined plate 222 is connected to the surface of the adjustment base 221 by a hinge. The operator can control the tilt angle of the fixed inclined plate 222 by the linear drive mechanism to ensure that the optical fiber placed on the fixed inclined plate 222 has a flat connection with the end-of-line inspection instrument.

[0035] In some embodiments, the linear drive mechanism includes a top plate 223 disposed on the surface of the adjusting base 221 and in contact with the fixed inclined plate 222, an adjusting gear 224 disposed inside the adjusting base 221, an adjusting shaft 225 connected to the adjusting gear 224, and an adjusting knob 226 connected to the adjusting shaft. The surface of the adjusting base 221 is provided with an opening for the top plate 223 to extend into it and contact the adjusting gear 224. The surface of the top plate 223 is provided with a locking tooth adapted to the adjusting gear 224. Both ends of the adjusting shaft 225 extend to the outside of the adjusting base 221. A fixing knob 227 is provided at the end of the adjusting shaft 225 away from the adjusting knob 226. The fixing knob 227 can fix the position of the adjusting shaft 225 on the adjusting base 221. Preferably, the fixing knob is connected to the adjusting shaft 225 by a thread. The operator can control the lifting and lowering of the top plate 223 by adjusting the adjusting knob 226, thereby adjusting the inclination of the fixed inclined plate 222.

[0036] To achieve more precise angle adjustment of the fixed inclined plate 222, a scale is provided on the surface of the adjustment knob 226, and a pointer pointing to the scale on the surface of the adjustment base 221 is provided on the surface of the adjustment knob 226.

[0037] In the description of this technology, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "install," "connect," and "link" 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 of two components. Those skilled in the art can understand the specific meaning of the above terms in this technology based on the specific circumstances.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A tilting fixture for an end-of-line inspection instrument, characterized in that, include: Fixed base (1); The fiber placement platform (2) includes a connecting seat (21) disposed on the surface of the fixed base (1) and an inclined fixing platform (22) disposed on the surface of the connecting seat (21), wherein the surface of the inclined fixing platform (22) is provided with an inclined slope. The end-of-line inspection device placement slot (3) is located on the surface of the fixed base (1) and allows the end-of-line inspection device to be placed inside it. When the end-of-line inspection device is placed in the end-of-line inspection device placement slot (3), the detection end of the end-of-line inspection device faces the surface of the inclined fixed platform (22). When the optical fiber to be tested is placed on the surface of the inclined fixed stage (22), the end of the optical fiber is parallel to the light source of the end tester.

2. The tilting fixture for an end-of-line inspection instrument according to claim 1, characterized in that: The connecting base (21) consists of a connecting base (211) installed on a fixed base (1), a movable stage (212) provided on the connecting base (211), and an adjustment mechanism (213) provided between the connecting base (211) and the movable stage (212). The movable stage (212) can move on the connecting base (211) under the action of the adjustment mechanism (213).

3. The tilting fixture for an end-of-line inspection instrument according to claim 1, characterized in that: The inclined fixed platform (22) consists of an adjusting base (221) on the surface of the moving platform (212), a fixed inclined plate (222) on the adjusting base (221), and a linear drive mechanism between the adjusting base (221) and the fixed inclined plate (222).

4. The tilting fixture for an end-of-line inspection instrument according to claim 3, characterized in that: One end of the fixed inclined plate (222) is connected to the surface of the adjusting base (221) via a hinge.

5. A tilting fixture for an end-of-line inspection instrument according to claim 3, characterized in that: The linear drive mechanism includes a top plate (223) disposed on the surface of the adjusting base (221) and in contact with the fixed inclined plate (222), an adjusting gear (224) disposed inside the adjusting base (221), an adjusting shaft (225) connected to the adjusting gear (224), and an adjusting knob (226) connected to the adjusting shaft.

6. The tilting fixture for an end-of-line inspection instrument according to claim 5, characterized in that: The surface of the adjusting base (221) is provided with an opening for the top plate (223) to extend into it and contact the adjusting gear (224), and the surface of the top plate (223) is provided with a locking tooth that is adapted to the adjusting gear (224).

7. A tilting fixture for an end-of-line inspection instrument according to claim 6, characterized in that: Both ends of the adjustment shaft (225) extend to the outside of the adjustment base (221). A fixing button (227) is provided at the end of the adjustment shaft (225) away from the adjustment knob (226). The fixing button (227) can fix the position of the adjustment shaft (225) on the adjustment base (221).

8. A tilting fixture for an end-of-line inspection instrument according to claim 7, characterized in that: The adjustment knob (226) has a scale on its surface, and the adjustment base (221) has a pointer on its surface pointing to the scale on the adjustment knob (226).

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