MT insertion core length measuring device

Abstract

The utility model discloses an MT insertion core length measuring device, which comprises a fixing block, a dial indicator and a locking piece, the fixing block is provided with a measuring part and a clamping part, the measuring part and the clamping part are arranged at intervals, the measuring part is provided with a measuring hole, the measuring hole penetrates through the measuring part along the direction from the clamping part of the measuring part to the clamping part, the clamping part is provided with a clamping hole, and the measuring hole penetrates through the clamping part along the direction from the clamping part to the clamping part. The clamping hole penetrates through the clamping part in the direction from the clamping part to the measuring part, the position of the clamping hole corresponds to the position of the measuring hole, the dial indicator is slidably connected into the measuring hole and the clamping hole, and the locking piece is in threaded connection with the clamping part and used for locking the dial indicator after zero calibration of the dial indicator, so that the dial indicator is prevented from sliding relative to the fixing block when the MT ferrule is measured. Meanwhile, the measuring needle on the dial indicator abuts against the edge portion of the end face of the MT insertion core so as to prevent the measuring needle from scratching or polluting an optical fiber in the MT insertion core, and therefore the optical characteristic of the MT insertion core is guaranteed.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of MT ferrule measurement, and more particularly to an MT ferrule length measuring device. BACKGROUND

[0002] In the field of optical fiber communication, as the core component of multi-core optical fiber connectors, the size precision of MT ferrules directly affects the optical performance (such as insertion loss, return loss, etc.) of optical fiber butt joint. Among them, the length (i.e. axial dimension) of the MT ferrule is one of the key parameters. If the length is too short, the optical fiber end face cannot be fully contacted, causing the optical signal transmission efficiency to decrease, and even the communication to be interrupted.

[0003] At present, the conventional detection scheme for MT ferrule length in the industry mainly relies on vernier caliper manual measurement, but this method has the following significant defects: the resolution of the vernier caliper is 0.02mm, its accuracy is not enough, and human reading error will further reduce the measurement reliability; the MT ferrule end face needs to be clamped during measurement, which is easy to scratch or contaminate the optical fiber end face, directly affecting the optical properties. CONTENT OF THE INVENTION

[0004] The purpose of the embodiment of the application is to provide an MT ferrule length measuring device, which measures the MT ferrule by using a zero-calibrated micrometer, so as to improve the measurement accuracy of the MT ferrule.

[0005] To achieve the above purpose, the application provides an MT ferrule length measuring device for measuring an MT ferrule, comprising:

[0006] A fixed block is provided with a measuring part and a clamping part, and the measuring part and the clamping part are arranged at intervals;

[0007] A measuring hole is provided on the measuring part, and the measuring hole penetrates the measuring part in the direction of the clamping part pointing to the clamping part;

[0008] A clamping hole is provided on the clamping part, and the clamping hole penetrates the clamping part in the direction of the clamping part pointing to the measuring part, and the position of the clamping hole corresponds to the position of the measuring hole;

[0009] A micrometer is slidably connected in the measuring hole and the clamping hole;

[0010] A locking member is threadedly connected with the clamping part, and is used to lock the micrometer after zero calibration.

[0011] Optionally, it further comprises:

[0012] A zero calibration member is in abutment with one end of the measuring hole away from the clamping part, and is used to zero calibrate the micrometer.

[0013] Optionally, the measuring hole is rectangular in shape, and a corner clearing groove is provided at the corner of the measuring hole.

[0014] Optionally, a receiving groove is provided on one of the side walls of the measuring hole, the receiving groove having an opening, and the circumferential side wall portion of the measuring needle on the dial indicator is received in the receiving groove.

[0015] Optionally, the clamping part includes:

[0016] Clamping base;

[0017] The first clamping plate is integrally formed with the clamping base and is provided with a first threaded hole;

[0018] The second clamping plate is integrally formed with the clamping base and spaced apart from the first clamping plate, and the second clamping plate is provided with a second threaded hole;

[0019] The sidewall of the measuring hole is partially located on the clamping base, partially located on the first clamping plate, and partially located on the second clamping plate;

[0020] The locking member passes through the first threaded hole and is threadedly connected to the second threaded hole to lock the dial indicator.

[0021] Optionally, it also includes:

[0022] The base, the fixing block is connected to the base.

[0023] The beneficial effects of the MT ferrule length measuring device provided in this application are as follows: Compared with the prior art, the MT ferrule length measuring device provided in this application includes a fixed block, a dial indicator, and a locking member. The fixed block is provided with a measuring part and a clamping part, which are spaced apart. The measuring part is provided with a measuring hole, which penetrates the measuring part in the direction from the clamping part to the clamping part. The clamping part is provided with a clamping hole, which penetrates the clamping part in the direction from the clamping part to the measuring part, and the position of the clamping hole corresponds to the position of the measuring hole. The dial indicator is slidably connected in the measuring hole and the clamping hole. The locking member is threadedly connected to the clamping part and is used to lock the dial indicator after it has been zeroed, thereby preventing the dial indicator from sliding relative to the fixed block when measuring the MT ferrule, thus ensuring the measurement accuracy of the MT ferrule. At the same time, the measuring pin on the dial indicator abuts against the edge of the end face of the MT ferrule to prevent the measuring pin from scratching or contaminating the optical fiber in the MT ferrule, thereby ensuring the optical characteristics of the MT ferrule. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of the MT ferrule length measuring device provided in the embodiments of this application;

[0026] Figure 2 A schematic diagram of the MT ferrule length measuring device provided in an embodiment of this application from another perspective;

[0027] Figure 3 This is a schematic diagram of the structure of the MT ferrule length measuring device in this application when measuring the MT ferrule;

[0028] Figure 4 A cross-sectional view of the MT ferrule length measuring device provided in an embodiment of this application;

[0029] Figure 5 This is a schematic diagram of the structure of the measuring hole provided in an embodiment of this application;

[0030] Figure 6 This is a schematic diagram of the MT ferrule.

[0031] The following are the labeling elements in the figure:

[0032] 10. MT insert; 11. Limiting surface; 20. Fixing block; 21. Measuring part; 211. Measuring hole; 212. Clearing groove; 213. Receiving groove; 22. Clamping part; 221. Clamping hole; 222. Clamping base; 223. First clamping plate; 2231. First threaded hole; 224. Second clamping plate; 2241. Second threaded hole; 30. Dial indicator; 31. Measuring probe; 40. Calibration part; 50. Base. Detailed Implementation

[0033] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0034] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0035] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "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 application 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 application.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0037] Please refer to the following: Figures 1 to 6 The MT ferrule length measuring device provided in the embodiments of this application will now be described.

[0038] This application provides a length measuring device for MT ferrule 10, which is used to measure the length of MT ferrule 10, including a fixing block 20, a dial indicator 30 and a locking element.

[0039] The fixing block 20 is provided with a measuring part 21 and a clamping part 22, which are spaced apart and are integrally formed with the fixing block 20.

[0040] The measuring part 21 is provided with a measuring hole 211, which penetrates the measuring part 21 in the direction of the clamping part 22. The clamping part 22 is provided with a clamping hole 221, which penetrates the clamping part 22 in the direction of the clamping part 22, and the position of the clamping hole 221 corresponds to the position of the measuring hole 211.

[0041] The dial indicator 30 is slidably connected within the measuring hole 211 and the clamping hole 221. The locking member is threadedly connected to the clamping part 22 and is used to lock the dial indicator 30 after it has been zeroed, thereby preventing the dial indicator 30 from sliding relative to the fixed block 20 when measuring the MT ferrule 10, thus ensuring the measurement accuracy of the MT ferrule 10.

[0042] In this application, the MT ferrule 10 length measuring device also includes a calibration part 40.

[0043] The calibration component 40 abuts against the end of the measuring hole 211 away from the clamping part 22 for zeroing the dial indicator 30. By adjusting the position of the dial indicator 30, the measuring needle 31 on the dial indicator 30 passes through the measuring hole 211 and abuts against the calibration component 40. At this time, the end face of the measuring needle 31 away from the dial of the dial indicator 30 is flush with the end face of the measuring hole 211 away from the clamping part 22. The position when the measuring needle 31 abuts against the calibration component 40 is set as the zero point. After the dial indicator 30 is zeroed, the dial indicator 30 is locked by the locking component.

[0044] The MT insert 10 is provided with a limiting surface 11. When the MT insert 10 is inserted into the measuring hole 211, the limiting surface 11 abuts against the side wall of the measuring hole 211 away from the clamping part 22, thereby measuring the length of the MT insert 10 inserted into the measuring hole 211.

[0045] In the application, in order to make the shape of the measuring hole 211 match the shape of the MT ferrule 10, the measuring hole 211 is rectangular, and a corner clearing groove 212 is provided at the corner of the measuring hole 211. The corner clearing groove 212 is used to eliminate the rounded corner formed at the corner of the measuring hole 211 due to machining, so that the MT ferrule 10 can be inserted into the measuring hole 211.

[0046] In this application, a receiving groove 213 is provided on one of the side walls of the measuring hole 211. The receiving groove 213 has an opening, and the circumferential side wall portion of the measuring needle 31 on the dial indicator 30 is received in the receiving groove 213.

[0047] By placing the measuring needle 31 on a side wall of the measuring hole 211, so that the measuring needle 31 abuts against the edge of the end of the MT ferrule 10, the measuring needle 31 is prevented from scratching or contaminating the fiber end face of the MT ferrule 10, thereby ensuring the optical characteristics of the MT ferrule 10.

[0048] In this application, the clamping part 22 includes a clamping base 222, a first clamping plate 223, and a second clamping plate 224.

[0049] Specifically, the first clamping plate 223 is integrally formed with the clamping base 222 and has a first threaded hole 2231. The second clamping plate 224 is integrally formed with the clamping base 222 and spaced apart from the first clamping plate 223, and has a second threaded hole 2241. Part of the sidewall of the measuring hole 211 is located on the clamping base 222, part of the sidewall is located on the first clamping plate 223, and part of the sidewall is located on the second clamping plate 224. The locking member passes through the first threaded hole 2231 and is threadedly connected to the second threaded hole 2241. By adjusting the screw length of the locking member in the second threaded hole 2241, the size of the clamping hole 221 is adjusted, thereby realizing the locking and unlocking of the dial indicator 30 by the locking member.

[0050] In this application, the MT ferrule 10 length measuring device also includes a base 50.

[0051] Specifically, the fixing block 20 is connected to the base 50 to facilitate the placement of the MT ferrule 10 length measuring device, making it convenient to measure the MT ferrule 10.

[0052] Compared with the prior art, the MT ferrule 10 length measuring device provided in this application includes a fixing block 20, a dial indicator 30, and a locking member. The fixing block 20 is provided with a measuring part 21 and a clamping part 22, which are spaced apart. The measuring part 21 is provided with a measuring hole 211, which penetrates the measuring part 21 in the direction pointing from the clamping part 22 to the clamping part 22. The clamping part 22 is provided with a clamping hole 221, which penetrates the clamping part 22 in the direction pointing from the clamping part 22 to the measuring part 21. The position of the clamping hole 221 is relative to the measuring hole. Corresponding to position 211, dial indicator 30 is slidably connected in measuring hole 211 and clamping hole 221. Locking member is threadedly connected to clamping part 22, used to lock dial indicator 30 after zeroing, thereby preventing dial indicator 30 from sliding relative to fixed block 20 when measuring MT ferrule 10, thus ensuring the measurement accuracy of MT ferrule 10. At the same time, measuring needle 31 on dial indicator 30 abuts against the edge of end face of MT ferrule 10 to prevent measuring needle 31 from scratching or contaminating the optical fiber in MT ferrule 10, thereby ensuring the optical characteristics of MT ferrule 10.

[0053] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A device for measuring the length of an MT ferrule, used for measuring the length of an MT ferrule, characterized in that, include: The fixing block is provided with a measuring part and a clamping part, the measuring part and the clamping part being arranged at intervals; The measuring part is provided with a measuring hole, which penetrates the measuring part in the direction of the clamping part of the measuring part pointing to the clamping part; The clamping part is provided with a clamping hole, which penetrates the clamping part in the direction from the clamping part to the measuring part, and the position of the clamping hole corresponds to the position of the measuring hole; A dial indicator is slidably connected within the measuring hole and the clamping hole; A locking element, threadedly connected to the clamping part, is used to lock the dial indicator after it has been zeroed.

2. The MT ferrule length measuring device as described in claim 1, characterized in that... It also includes: The calibration component abuts against the end of the measuring hole away from the clamping part, and is used to zero the dial indicator.

3. The MT ferrule length measuring device as described in claim 2, characterized in that... , The measuring hole is rectangular in shape, and a corner clearing groove is provided at the corner of the measuring hole.

4. The MT ferrule length measuring device as described in claim 3, characterized in that... , A receiving groove is provided on one of the side walls of the measuring hole. The receiving groove has an opening, and the circumferential side wall portion of the measuring needle on the dial indicator is received in the receiving groove.

5. The MT ferrule length measuring device as described in claim 1 or 4, characterized in that, The clamping part includes: Clamping base; The first clamping plate is integrally formed with the clamping base and is provided with a first threaded hole; The second clamping plate is integrally formed with the clamping base and spaced apart from the first clamping plate, and the second clamping plate is provided with a second threaded hole; The sidewall of the measuring hole is partially located on the clamping base, partially located on the first clamping plate, and partially located on the second clamping plate; The locking member passes through the first threaded hole and is threadedly connected to the second threaded hole to lock the dial indicator.

6. The MT ferrule length measuring device as described in claim 1, characterized in that, Also includes: The base, and the fixing block is connected to the base.

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