Detection jig for multi-core APC MT insertion core
By designing a ferrule placement cavity that connects the limiting groove and the detection through hole, the problem of low detection accuracy of APC MT ferrules was solved, achieving higher detection accuracy and product yield.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TASLO CO LTD
- Filing Date
- 2025-05-20
- Publication Date
- 2026-05-01
AI Technical Summary
In the existing technology, the detection accuracy of APC MT ferrules is not high, which affects the product accuracy.
Design a testing fixture, including a limiting plate and a mounting plate. The limiting groove communicates with the testing through hole to form an inclined insert placement cavity. The inclination of the bottom surface of the insert placement cavity is the same as the end face angle of the APC MT insert, ensuring that the end face of the APC MT insert to be tested is parallel to the front plane of the mounting plate.
This improved the testing accuracy and product yield of APC MT ferrules.
Smart Images
Figure CN224189198U_ABST
Abstract
Description
A testing fixture for multi-core APC MT ferrules Technical Field
[0001] This utility model relates to the field of optical fiber communication technology, and in particular to a fixture for testing multi-core APC MT ferrules. Background Technology
[0002] Position accuracy, fiber optic port inner diameter, and guide pin jack inner diameter are important performance parameters for Mechanical Transfer (MT) ferrule products. Currently, most MT ferrule manufacturers in the industry use optical methods to inspect the inclined end face of Angled Physical Contact (APC) MT ferrules. Because the end face of the APC MT ferrule is inclined, it forms a certain angle with the front plane of the MT ferrule mounting plate fixture, resulting in low inspection accuracy and thus affecting the product accuracy of the APC MT ferrule. Summary of the Invention
[0003] In view of this, the purpose of this utility model embodiment is to provide a fixture for testing multi-core APC MT ferrules, which can improve the testing accuracy of APC MT ferrules.
[0004] To address one of the aforementioned problems, the present invention provides a fixture for detecting multi-core APC MT ferrules, the fixture comprising a limiting plate and a mounting plate;
[0005] The mounting plate has at least one through-hole for detection, and the limiting plate has at least one limiting groove. The limiting groove communicates with the through-hole to form an inclined insert placement cavity. The inclination of the bottom surface of the insert placement cavity is the same as the end face angle of the inclined APC MT insert.
[0006] Optionally, the height of the center position of the insert placement cavity is in the range of 31.4mm-31.6mm.
[0007] Optionally, the horizontal distance between the center positions of two adjacent insert placement cavities ranges from 9.9 mm to 10.1 mm.
[0008] Optionally, the limiting plate is provided with at least one first through hole, and the mounting plate is provided with a second through hole at the same position as the first through hole. The limiting plate and the mounting plate are fixedly connected through the first through hole and the second through hole.
[0009] This utility model has the following beneficial effects: by connecting the limiting groove and the detection through hole to form an inclined ferrule placement cavity, and the inclination of the bottom surface of the ferrule placement cavity is the same as the end face angle of the APC MT ferrule, when the APC MT ferrule is placed into the ferrule placement cavity, the end face of the APC MT ferrule to be tested is parallel to the front plane of the mounting plate, thereby improving the detection accuracy of the APC MT ferrule, and also helping to improve the accuracy and yield of the APC MT ferrule. Attached Figure Description
[0010] Wherein: 1-Limiting plate, 2-Mounting plate, 3-Locking screw, 4-Beveled APC MT insert, 11-Limiting groove, 12-First through hole, 21-Detection through hole, 22-Second through hole, 23-Front surface of mounting plate, 41-Beveled surface of insert.
[0011] Figure 1 is a schematic diagram of the unassembled structure of a multi-core APC MT insert testing fixture provided by this utility model;
[0012] Figure 2 is an assembly diagram of a testing fixture for a multi-core APC MT insert provided by this utility model;
[0013] Figure 3 is a cross-sectional view of the ferrule testing fixture of the multi-core APC MT ferrule provided by this utility model.
[0014] Figure 4 is a structural schematic diagram of a limiting plate provided by this utility model;
[0015] Figure 5 is a structural schematic diagram of an mounting plate provided by this utility model. Detailed Implementation
[0016] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as "connected" to another element, it can be directly on the other element, or one or more intermediate elements may exist between them. The terms "bottom surface" and other designations used in this specification indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model.
[0017] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention.
[0018] Please refer to Figures 1-3. Figure 1 is a schematic diagram of an unassembled testing fixture for a multi-core APC MT ferrule. Figure 2 is a schematic diagram of an assembled testing fixture for a multi-core APC MT ferrule. Figure 3 is a cross-sectional view of a testing fixture for a multi-core APC MT ferrule. In this embodiment, the present invention provides a testing fixture for a multi-core APC MT ferrule, which includes a limiting plate and a mounting plate.
[0019] The mounting plate has at least one through-hole for detection, and the limiting plate has at least one limiting groove. The limiting groove communicates with the through-hole to form an inclined ferrule placement cavity. The inclination of the bottom surface of the ferrule placement cavity is the same as the end face angle of the APC MT ferrule.
[0020] Specifically, the number of through-holes for testing is unlimited, for example, 10 or 12. The number of limiting slots can be equal to or greater than the number of through-holes for testing. There are no restrictions on the parameters for testing multi-core APC MT ferrules, such as position accuracy, fiber optic hole inner diameter, guide pin jack inner diameter, and ferrule appearance. The tilt angle of the top surface and two sides of the tilted ferrule placement cavity is not required; it can be the same as or different from the end face angle of the APC MT ferrule. The tilt angle of the bottom surface of the ferrule placement cavity is the same as the end face angle of the APC MT ferrule.
[0021] The end face angle of the multi-core APC MT ferrule is not limited to 8°, but can be 6° or other angle values. Therefore, the bottom surface inclination of the ferrule placement cavity can also be 8° or 6° or other angle values, but the bottom surface inclination of the ferrule placement cavity must be the same as the end face angle of the APC MT ferrule.
[0022] The center height of the insert placement cavity ranges from 31.4mm to 31.6mm, for example, 31.5mm. The center height indicates the distance between the center position and the bottom surface of the fixture.
[0023] When there are two or more ferrule placement cavities, the horizontal distance between the center positions of two adjacent ferrule placement cavities is in the range of 9.9mm-10.1mm, preferably 10mm.
[0024] As shown in Figures 4 and 5, Figure 4 is a structural schematic diagram of a limiting plate, and Figure 5 is a structural schematic diagram of a mounting plate. The limiting plate has at least one first through hole, and the mounting plate has a second through hole at the same position as the first through hole. Locking screws securely connect the limiting plate and the mounting plate through the first and second through holes. The size and shape of the first and second through holes can be different; for example, the first through hole can be a straight slot with a diameter of 3.4 mm, and the second through hole can be a circular through hole with a diameter of 3 mm. It is worth noting that the size and shape of the first and second through holes can also be the same.
[0025] The fixture of the present invention is used to test APC MT ferrules. By processing the bottom surface of the ferrule placement cavity of the APC MT ferrule testing fixture into an inclined surface with the same inclination as the end face angle of the APC MT ferrule, the end face of the APC MT ferrule is made parallel to the front plane of the mounting plate, thereby improving the testing accuracy of the APC MT ferrule. The cross-section of its mounting method is shown in Figure 3.
[0026] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Under the concept of this utility model, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of this utility model as described above. For the sake of brevity, they are not provided in detail. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A testing fixture for multi-core APC MT ferrules, characterized in that, The fixture includes a limiting plate and a mounting plate; the mounting plate has at least one through-hole for detection, and the limiting plate has at least one limiting groove, which communicates with the through-hole to form an inclined insert placement cavity, the bottom surface of which has the same inclination angle as the end face angle of the multi-core APC MT insert.
2. The testing fixture according to claim 1, characterized in that, The center height of the insert placement cavity ranges from 31.4mm to 31.6mm.
3. The testing fixture according to claim 1, characterized in that, The horizontal distance between the center positions of two adjacent insert placement cavities ranges from 9.9mm to 10.1mm.
4. The testing fixture according to claim 1, characterized in that, The limiting plate is provided with at least one first through hole, and the mounting plate is provided with a second through hole at the same position as the first through hole. The limiting plate and the mounting plate are fixedly connected through the first through hole and the second through hole.