MT torsion wire length detection tool

Abstract

The utility model provides a kind of MT torsion wire length detection tool, and the two ends of torsion wire are respectively equipped with MT ferrule and MINI ferrule, and the detection tool includes: detection bench, the detection bench is equipped with first positioning slot, second positioning slot, third positioning slot and contrast groove in turn, the first positioning slot and the third positioning slot are used to accommodate MT ferrule and MINI ferrule respectively, and the torsion wire is suspended in the second positioning slot, and the contrast groove has reference area;Wherein, the torsion wire is moved by the bending stress of itself MINI ferrule relative to third positioning slot, to make MINI ferrule end face of the torsion wire away from stay in the reference area or the reference area outside.It solves the technical problem that the length of MT torsion wire cannot be accurately determined in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of optical fiber processing technology, and in particular to a tooling for detecting the length of MT twisted wire. Background Technology

[0002] Currently, MT irregular twisted yarn will undergo slight deformation due to its own bending stress after processing. Therefore, it is impossible to accurately and effectively determine whether its length meets the product installation requirements at the length confirmation process. Furthermore, it would be very time-consuming and inefficient to perform installation and testing according to the current conventional process. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a tooling for detecting the length of MT twisted wire, which solves the technical problem of the inability to accurately determine the length of MT twisted wire in existing technologies.

[0004] According to the embodiments of this utility model, the following technical solution is adopted: A tooling for detecting the length of an MT twisted wire, wherein the two ends of the twisted wire are respectively provided with an MT insert and a MINI insert, the tooling includes: a detection table, the detection table being provided with a first positioning groove, a second positioning groove, a third positioning groove and a comparison groove in sequence, the first positioning groove and the third positioning groove being used to accommodate the MT insert and the MINI insert respectively, and the twisted wire being suspended in the second positioning groove, the comparison groove having a reference area; The twisted line moves the MINI insert relative to the third positioning groove due to its own bending stress, so that the end face of the MINI insert away from the twisted line stays within or outside the reference area.

[0005] Preferably, the testing platform is provided with a guide groove that communicates with the first positioning groove, and a pressure block is slidably provided in the guide groove, the pressure block being slidable relative to the first positioning groove.

[0006] Preferably, the pressure block is slidably disposed in the guide groove via a pin, and the pin is fitted with a tension spring. The two ends of the tension spring are respectively connected to the pin and the guide groove, so that the pressure block is moved away from the first positioning groove under the action of external force.

[0007] Preferably, the MT insert has a positioning boss, and the pressure block abuts against the positioning boss.

[0008] Preferably, the end of the pressure block away from the first positioning groove is provided with a gripping part, which is an outwardly extending lug.

[0009] Preferably, the peripheral surface of the lug is provided with anti-slip texture.

[0010] Preferably, the threshold of the reference area is 0-0.3 cm.

[0011] Preferably, the first positioning groove and the third positioning groove are staggered. Compared with the prior art, the present invention has the following advantages: This testing fixture adopts the actual assembly simulation method of MT irregular twisted line products, which greatly improves the efficiency of product length comparison and reduces the damage to the product during the length comparison process. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the detection tooling in one embodiment of the present invention; Figure 2 This is a partial structural diagram of the detection fixture in one embodiment of the present invention. The reference numerals in the accompanying drawings include: 1. MT insert; 2. Twisted wire; 3. MINI insert; 4. Testing table; 41. Guide groove; 5. First positioning groove; 6. Second positioning groove; 7. Third positioning groove; 8. Comparison groove; 9. Pressure block; 91. Lug; 10. Pin; 11. Tension spring. Detailed Implementation

[0013] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the technical solutions of this utility model are further described below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of this utility model and are not intended to limit it.

[0014] See Figures 1 to 2 This utility model provides a length detection fixture for an MT twisted wire 2. The two ends of the twisted wire 2 are respectively provided with an MT insert 1 and a MINI insert 3. The detection fixture includes a detection table 4, which is provided with a first positioning groove 5, a second positioning groove 6, a third positioning groove 7 and a comparison groove 8 in sequence. The first positioning groove 5 and the third positioning groove 7 are respectively used to accommodate the MT insert 1 and the MINI insert 3, and the twisted wire 2 is suspended in the second positioning groove 6. The comparison groove 8 has a reference area. The twisted line 2 causes the MINI insert 3 to move relative to the third positioning groove 7 due to its own bending stress, so that the end face of the MINI insert 3 away from the twisted line 2 stays within or outside the reference area.

[0015] In this embodiment, to simulate the actual assembly of the MT irregular twisted wire 2 product and to inspect and screen defective products, a first positioning groove 5, a second positioning groove 6, a third positioning groove 7, and a comparison groove 8 are sequentially arranged on the inspection table 4. The first positioning groove 5 is used to accommodate the MT insert 1 at one end of the twisted wire 2. The second positioning groove 6 allows the twisted wire 2 to pass through in the air, so that the twisted wire 2 can freely exhibit its bending stress. The third positioning groove 7 is used to accommodate the MINI insert 3 at the other end of the twisted wire 2 and allows the MINI insert 3 to move within a certain range. The comparison groove 8 has a reference area and is a scale for judging whether the product is qualified or not. Specifically, the MT insert 1 of the twisted wire 2 to be inspected is placed in the first positioning groove 5, and the MINI insert 3 is placed in the second positioning groove 6. When the torsion line 2 is placed in the third positioning groove 7, the main body of the torsion line 2 is suspended above the second positioning groove 6. Due to the bending stress of the torsion line 2 itself, when it is placed on the tooling, it will accumulate the force to restore the bending state, allowing the MINI insert 3 to slide on the third positioning groove 7. Driven by the bending stress, the MINI insert 3 will be pushed, causing its end face to move. When the end face of the MINI insert 3 finally stops in the reference area, it means that the length of the torsion line 2 is qualified. If the end face of the MINI insert 3 stops outside the reference area, that is, the MINI insert 3 is close to the third positioning groove 7 but not in the reference area, or the MINI insert 3 is far away from the third positioning groove 7 and outside the reference area, it means that the length is not up to standard and the product is unqualified.

[0016] The testing platform 4 is provided with a guide groove 41 that communicates with the first positioning groove 5. A pressure block 9 is slidably provided in the guide groove 41, and the pressure block 9 can slide relative to the first positioning groove 5.

[0017] In this embodiment, a guide groove 41 connected to the first positioning groove 5 is provided on the testing table 4. A pressure block 9 is movably arranged in the guide groove 41. The pressure block 9 can slide relative to the first positioning groove 5 to fix the MT insert 1 placed in the first positioning groove 5 so that it does not move during the testing process. The end face of the MT insert 1 becomes the reference point of the testing process, so that the final position of the end face of the MINI insert 3 is only related to the length and bending stress of the torsion line 2 itself, which greatly improves the consistency and accuracy of the test results.

[0018] The pressure block 9 is slidably disposed in the guide groove 41 via a pin 10. A tension spring 11 is sleeved on the pin 10, and the two ends of the tension spring 11 are respectively connected to the pin 10 and the guide groove 41, so that the pressure block 9 is moved away from the first positioning groove 5 under the action of external force.

[0019] In this embodiment, the pin 10 passes through the pressure block 9 and connects it to the guide groove 41 and the detection table 4. The tension spring 11 is sleeved on the pin 10, with one end connected to the pin 10 and the other end connected to the guide groove 41. The pin 10 acts as a sliding guide for the tension spring 11. In its natural state, the tension spring 11 is in a compressed state, and the elastic force it generates will pull the pin 10, thereby driving the pressure block 9 to fit into the first positioning groove 5. At this time, the pressure block 9 needs to be manually pulled to put the tension spring 11 in a stretched state. After the MT insert 1 is placed in the first positioning groove 5, the pressure block 9 is released to put the tension spring 11 in a compressed state, and the pressure block 9 is linked to position the MT insert 1.

[0020] The MT insert 1 is provided with a positioning boss, and the pressure block 9 abuts against the positioning boss.

[0021] In this embodiment, the MT ferrule 1 is provided with a positioning boss, which surrounds and protrudes from the MT ferrule 1. When the pressure block 9 is pressed, its force is directly applied to the positioning boss of the MT ferrule 1, avoiding the pressure block 9 directly pressing on the fragile end face of the ferrule (which has a precision optical fiber interface, preventing potential damage). During each test, the MT ferrule 1 is fixed with the same positioning boss as a reference, ensuring that all tested components are under exactly the same initial conditions, greatly improving the repeatability and accuracy of the test.

[0022] The pressure block 9 has a gripping part at one end away from the first positioning groove 5, and the gripping part is an outwardly extending lug 91. Furthermore, the peripheral surface of the lug 91 is provided with anti-slip texture.

[0023] In this embodiment, the end of the pressure block 9 away from the first positioning groove 5 is provided with a gripping part, which makes it convenient for the operator to grasp or apply force. The gripping part is an upwardly extending lug 91, which provides a clear point of force application for the operator's fingers, making it easier for the operator to overcome the tension of the tension spring 11. In addition, the uneven anti-slip texture processed on the surface of the lug 91 is used to increase the friction.

[0024] The threshold value of the reference region is 0-0.3 cm.

[0025] In this embodiment, during detection, the product is determined to be qualified only when the end face of the MINI ferrule 3 is located within the 0.3 cm long interval of the comparison groove 80, if the end face of the MINI ferrule 3 stays before (not entering) or after (exceeding) this area, the product is determined to be unqualified; the threshold (0.3 cm) of the reference area is obtained through reverse calculation and experimental verification according to the performance requirements (such as docking accuracy, mechanical stress, signal loss, etc.) of the MT twisted wire 2 in actual use, which ensures that the length and bending stress of all cables passing the detection meet the design specifications, so that they can work reliably in the equipment, and enables different personnel, at different times, using different tooling copies for detection, all can follow the completely same qualification standard, which ensures the consistency of product quality.

[0026] The first positioning groove 5 and the third positioning groove 7 are arranged in a staggered manner.

[0027] In this embodiment, the detection method of the detection tool enables the MT irregular twisted wire 2 product to be detected to adopt an actual assembly simulation mode. When the MT ferrule 1 and the MINI ferrule are actually installed, due to the structural characteristics of the twisted wire 2, the two are not in the same plane, but have a certain spatial staggered relationship. The first positioning groove 5 and the third positioning groove 7 arranged in vertically staggered manner realize the reproduction of the actual assembly space, so that the positioning posture of the MT ferrule 1 and the clamping position of the MINI ferrule 3 in the detection tool completely match the relative positions of the components during actual installation, avoiding positioning deviation caused by planar collinear arrangement, fundamentally ensuring that the length comparison result can directly reflect the actual installation adaptability of the product, and solving the problem that the comparison data of the traditional process is disconnected from the actual installation. The first positioning groove 5 and the third positioning groove 7, which are vertically staggered, can form two-point constraints on the twisted wire 2 from two different spatial dimensions. The MT ferrule 1 limits radial and circumferential displacement through the first positioning groove 5, and the MINI ferrule 3 limits axial and transverse displacement through the positioning groove. The cooperation of the two can forcibly correct the slight deformation of the twisted wire 2 caused by bending stress, so that the twisted wire 2 is in a straightened and fixed posture during comparison, avoiding length measurement error caused by deformation, ensuring that the relative position between the end face of the MINI ferrule 3 and the comparison groove can truly reflect the actual length of the twisted wire 2, and improving the accuracy of qualification judgment.

[0028] Finally, it should be noted that the above embodiments are only used to explain the technical solution of the present utility model, not to limit it. Although the present utility model has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of the present utility model without departing from the spirit and scope of the technical solution of the present utility model, and all such modifications or equivalent substitutions shall be included in the scope of the claims of the present utility model.

Claims

1. A fixture for detecting the length of an MT twisted wire, wherein the two ends of the twisted wire are respectively provided with an MT insert and a MINI insert, characterized in that, The testing fixture includes a testing table, which is provided with a first positioning groove, a second positioning groove, a third positioning groove and a comparison groove in sequence. The first positioning groove and the third positioning groove are respectively used to accommodate MT ferrules and MINI ferrules, and the twisted wire is suspended in the second positioning groove. The comparison groove has a reference area. The twisted line causes the MINI insert to move relative to the third positioning groove due to its own bending stress, so that the end face of the MINI insert away from the twisted line stays within or outside the reference area.

2. The MT torsion wire length detection fixture according to claim 1, characterized in that, The testing platform is provided with a guide groove that communicates with the first positioning groove. A pressure block is slidably provided in the guide groove, and the pressure block can slide relative to the first positioning groove.

3. The MT torsion wire length detection fixture according to claim 2, characterized in that, The pressure block is slidably disposed in the guide groove by a pin. The pin is fitted with a tension spring, and the two ends of the tension spring are respectively connected to the pin and the guide groove, so as to move the pressure block away from the first positioning groove under the action of external force.

4. The MT torsion wire length detection fixture according to claim 3, characterized in that, The MT insert is provided with a positioning boss, and the pressure block abuts against the positioning boss.

5. The MT torsion line length detection fixture according to claim 4, characterized in that, The end of the pressure block away from the first positioning groove is provided with a gripping part, which is an outwardly extending lug.

6. The MT torsion wire length detection fixture according to claim 5, characterized in that, The lug has anti-slip textured surfaces.

7. The MT torsion wire length detection fixture according to claim 1, characterized in that, The threshold value of the reference region is 0-0.3 cm.

8. The MT twisted wire length detection fixture according to claim 1, characterized in that, The first positioning groove and the third positioning groove are staggered.

Images