Device for detecting tensile force of SC type optical fiber movable connector

Abstract

The invention discloses a device for detecting tension of an SC type optical fiber movable connector, which relates to the field of connector detection and comprises a clamp mechanism for limiting and clamping the movable connector. The clamp mechanism comprises a clamp gravity test disc, the top end of the clamp gravity test disc is detachably connected with a connector clamp seat through a bolt, the connector clamp seat is provided with a clamp groove used for limiting a movable connector, and the clamp groove is connected with a movable groove in a penetrating mode; the two sides of the top end of the clamp groove are connected with movable structures which are used for abutting against a movable shell sleeve detachably arranged on the movable connector lower body in a sleeving mode and used for separating the movable shell sleeve from the movable connector lower body. And a limiting structure for limiting the upper main body of the movable connector is movably arranged in the movable groove. The device is simple and convenient to operate, the uniformity of detection can be ensured through the device, the detection efficiency is improved, and time and cost are saved.

Description

Technical Field

[0001] The present invention relates to the field of connector detection, and specifically to a device for detecting the tensile force of an SC-type fiber optic connector. Background Art

[0002] With the rapid development of communication networks, SC-type fiber optic connectors have the characteristics of being simple and reliable, having low insertion loss, and low return loss. They are mainly used in fiber optic communication systems, data centers, local area networks, radio and television networks, and other scenarios that require high-reliability and high-performance optical transmission. SC-type fiber optic connectors play a role in connecting fiber optic transmission devices, switches, optical modules, etc. between fiber optic transmission devices to achieve high-speed and stable fiber optic communication. When building a large-scale fiber optic communication network, due to its standardized interface size and connection method, the SC-type fiber optic connector can be compatible with other fiber optic devices and connectors to ensure the smooth operation of the network. In order to ensure the quality of SC-type fiber optic connectors, it is necessary to conduct a "tensile strength" test on the produced SC-type fiber optic connectors. After meeting the requirements, they can be put into the market for use.

[0003] However, in the existing tensile force detection process of SC-type fiber optic connectors, the following problems exist: 1. The production volume of fiber optic connectors is large. A production team has at least a few people and at most dozens of people, and the daily production volume can reach thousands or tens of thousands of pieces. In the actual production process, tensile force detection is not carried out on each product. It is mainly sampling inspection. If all products are subjected to tensile force detection, the labor demand will increase and the cost will increase; 2. When self-inspecting in the production team, the tensile force methods and durations of each person are different, resulting in quality risks in the tensile force tests of the sampled products; 3. When different production teams conduct detection, due to abnormal tensile force, unstable air pressure, or operators not following the operating procedures of technical documents, etc., the tensile force of the detected fiber optic connector products may be unqualified.

[0004] Therefore, in order to reduce the differences in the detection environment of fiber optic connectors, make it convenient for detection, and at the same time be able to save the time of sampling inspection and save costs, a device for detecting the tensile force of SC-type fiber optic connectors is designed. Summary of the Invention

[0005] The purpose of the present invention is achieved through the following technical solutions: A device for detecting the tensile force of an SC-type fiber optic connector, including a fixture mechanism for limiting and clamping the fiber optic connector; The fixture mechanism includes a fixture gravity test plate. The top end of the fixture gravity test plate is detachably installed and connected with a connector fixture seat through bolts. The connector fixture seat is provided with a fixture groove for limiting the movable connector, and the fixture groove is connected through a movable groove. On both sides of the top end of the fixture groove, there are respectively connected with movable structures for abutting against the movable outer shell sleeve detachably sleeved on the lower body of the movable connector and for separating the movable outer shell sleeve from the lower body of the movable connector. A limiting structure for limiting the upper body of the movable connector is movably arranged in the movable groove.

[0006] Preferably, the movable structures all include movable shafts. One end of the movable shaft close to the movable outer shell sleeve on the lower body of the movable connector is connected with a protruding resisting convex body, and the other end of the movable shaft is connected with a movable guiding rod. A movable guiding hole is opened at the top end of the fixture groove of the connector fixture seat, and the end of the movable guiding rod away from the movable shaft is movably inserted into the movable guiding hole.

[0007] Preferably, movable springs are respectively sleeved on the movable guiding rods. One end of the movable spring is connected with the movable guiding rod, and the other end of the movable spring is connected with the inner wall of the movable guiding hole.

[0008] Preferably, the limiting structure includes a movable seat. The bottom end of the movable seat is connected with a first sliding block, and a first sliding groove is opened on the bottom wall of the movable groove. The first sliding block is slidably matched with the first sliding groove. A vertically penetrating limiting groove is opened on the movable seat far away from the first sliding block. On both side walls of the limiting groove, there are respectively movably arranged movable connecting pieces for limiting the upper body of the movable connector.

[0009] Preferably, the movable connecting pieces all include movable limiting rods. Both ends of the movable limiting rod are respectively rotatably connected to the movable block through a rotating shaft. A second sliding groove is opened on the side wall of the limiting groove. One end of the movable block close to the second sliding groove is connected with a second sliding block, and the second sliding block is slidably matched.

[0010] Preferably, a reset spring is respectively arranged between the movable block and the bottom wall of the limiting groove. One end of the reset spring is connected with the movable block, and the other end of the reset spring is connected with the bottom wall of the limiting groove.

[0011] Preferably, the fixture gravity test plate is movably placed in the movable chassis, and a weight plate for placing weights is installed and connected to one side end of the movable chassis. A hook for hanging weights is connected to the bottom end of the fixture gravity test plate.

[0012] Preferably, one end of the movable chassis is connected to a rotating seat for driving the rotation of the movable chassis through a connecting plate. The bottom end of the rotating seat is connected to a hydraulic rod, and the other end of the hydraulic rod is connected to the test bench. The top end of the rotating seat is connected to a telescopic and rotatable telescopic rod. The other end of the telescopic rod is connected to a horizontal rod, and the other end of the horizontal rod is connected to a limit clamp. The limit clamp is movably arranged above the movable chassis.

[0013] Preferably, a cable limiting groove for limiting the connecting cable at the top end of the movable connector is through - opened in the limit clamp. A limit sleeve is rotatably connected to the outer wall of the limit clamp. A through - slit for guiding the connecting cable at the top end of the movable connector into the cable limiting groove is through - opened in the limit sleeve.

[0014] Preferably, a rotating rod for taking up the connecting cable at the top end of the movable connector is arranged above the limit clamp. The rotating rod is provided with a spiral cable - taking - up limiting groove. One end of the rotating rod is connected to a rotating shaft. One end of the rotating shaft rotatably passes through a connecting head, and the end is connected to a driving mechanism for driving the rotating rod to rotate around the connecting head for cable taking - up. The bottom end of the connecting head is connected to a hydraulic rod for driving the connecting head to lift. The other end of the hydraulic rod is connected to the test bench. The driving mechanism includes a connecting gear, a driving gear, and a servo motor. The connecting gear is connected to the end of the rotating shaft away from the rotating rod. The connecting gear meshes with the driving gear. The driving gear is connected to the output end of the servo motor. The servo motor is installed and connected to the connecting head through a motor bracket.

[0015] The beneficial effects of the present invention are as follows: The object of the present invention is to provide a device for detecting the tensile force of an SC-type fiber optic connector. The purpose of this device is to reduce the influence of conditions during the tensile force detection of the connector, thereby ensuring the unity during detection and the detection quality of the detected connectors under "the same conditions". This device is provided with a fixture mechanism. While being used for "actively limiting" the connection of the connector, this fixture mechanism can also achieve the "separation" of the connector, thus facilitating the detection of the "tensile force" value of the entire tested connector. Moreover, this device is also equipped with a structure for "actively adjusting and limiting" the connection cable of the connector to avoid and reduce the swing of the connection cable, thereby ensuring the accuracy of the detected values. In terms of the overall structure, this device is not only simple and convenient to operate, but also can ensure the unity of detection through this device, improve the detection efficiency, and save time and costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of the overall connection effect of a device for detecting the tensile force of an SC-type fiber optic connector according to the present invention; Figure 2 Exploded schematic diagram of the connection structure part of a device for detecting the tensile force of an SC-type fiber optic connector according to the present invention; Figure 3 Schematic diagram of the connection structure of the movable chassis of a device for detecting the tensile force of an SC-type fiber optic connector according to the present invention; Figure 4 Exploded schematic diagram of the fixture mechanism part of a device for detecting the tensile force of an SC-type fiber optic connector according to the present invention; Figure 5 Schematic diagram of the movable structure of a device for detecting the tensile force of an SC-type fiber optic connector according to the present invention; Figure 6 Exploded schematic diagram of the movable structure part of a device for detecting the tensile force of an SC-type fiber optic connector according to the present invention; Figure 7 Schematic diagram of the limiting structure of a device for detecting the tensile force of an SC-type fiber optic connector according to the present invention; Figure 8 Exploded schematic diagram of the limiting structure part of a device for detecting the tensile force of an SC-type fiber optic connector according to the present invention; Figure 9 Exploded schematic diagram of the limiting clamp connection structure part of a device for detecting the tensile force of an SC-type fiber optic connector according to the present invention; In the figure, 1 - gravity test plate, 2 - movable chassis, 3 - rotating seat, 4 - test bench, 5 - rotating rod, 11 - connector fixture seat, 21 - weight tray, 32 - telescopic rod, 33 - horizontal rod, 34 - limit clamp, 51 - connecting head, 52 - connecting gear, 53 - driving gear, 54 - servo motor, 111 - movable shaft, 112 - movable guide rod, 113 - movable spring, 34 - limit clamp, 114 - movable seat, 115 - movable limit rod, 116 - movable block, 117 - return spring, 341 - limit sleeve. Specific implementation mode

[0017] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0018] As Figures 1 to 9As shown in the figure, a device for detecting the tensile force of an SC-type fiber optic connector. The purpose of this device is to reduce the influence of conditions during the tensile force detection of the fiber optic connector, thereby ensuring the unity during detection and the detection quality of the fiber optic connector under "the same conditions". Structurally, this device includes a fixture mechanism for limiting and clamping the connector; the fixture mechanism is used to limit and clamp the connector to be detected, so that under the condition of applying an external force through other designed structures, the movable outer sleeve of the connector to be detected can be separated from the lower main body of the connector, and then the "tensile force value" between the movable outer sleeve and the lower main body of the connector can be tested and calculated to determine whether it meets the "tensile force value" requirement. In the embodiment, the fixture mechanism includes a fixture gravity test plate 1. The top of the fixture gravity test plate 1 is detachably installed and connected to a connector fixture seat 11 through bolts. The connector fixture seat 11 is provided with a fixture groove for limiting the connector, and the fixture groove is connected through a movable groove. The gravity test plate 1 is a "standard test gravity piece" designed with a certain mass, which enables the limited connector to be subjected to weight and realizes the separation of the movable outer sleeve of the connector from the lower main body of the connector. At the same time, in the design, both sides of the top of the fixture groove are respectively connected with a movable structure for abutting against the movable outer sleeve detachably sleeved on the lower main body of the connector and for separating the movable outer sleeve from the lower main body of the connector; and a limiting structure for limiting the upper main body of the connector is movably arranged in the movable groove. Generally speaking, the connector is limited on this fixture mechanism, and then in a "hanging" manner, the gravity received by separating the movable outer sleeve of the connector from the lower main body of the connector through the gravity test plate 1 of the fixture mechanism is tested, substituted, and calculated through the prior art to obtain the "tensile force value" for separating the movable outer sleeve of the connector from the lower main body of the connector. By comparing this tensile force value with the requirement, it can be determined whether the requirement is met. It should be noted here that in the embodiment, the substitution calculation of the "tensile force value" of the connector through this device is not the focus of the present invention and is not specifically described herein.

[0019] Embodiment 1 In an embodiment, a specific description is given of separating the movable outer housing sleeve of the movable connector from the lower main body of the movable connector. The movable structure provided in the connector fixture seat 11 of the device, under the action of gravity, realizes the function of separating the movable outer housing sleeve of the movable connector from the lower main body of the movable connector. The two movable structures provided both include a movable shaft 111; at the same time, one end of the movable shaft 111 close to the movable outer housing sleeve on the lower main body of the movable connector is connected with a protruding resistance convex body, and the other end of the movable shaft is connected with a movable guide rod 112. A movable guide hole is opened at the top of the fixture groove of the connector fixture seat, and the end of the movable guide rod 112 away from the movable shaft 111 is movably inserted into the movable guide hole. And, movable springs 113 are respectively sleeved on the movable guide rod 112; one end of the movable spring 113 is connected with the movable guide rod 112, and the other end of the movable spring 113 is connected with the inner wall of the movable guide hole. A specific embodiment may be that the lower main body of the movable connector is placed in the fixture groove of the connector fixture seat 11, and the upper main body of the movable connector is placed in the movable groove. Under the "movable limit" of the provided limit structure, the movable connector is "movable clamped and limited" on the fixture mechanism, and then the fixture mechanism is suspended in the air by using the connecting cable of the movable connector and the movable connector "movable clamped and limited" on the fixture mechanism. Under the "gravity" action of the fixture gravity test plate 1 of the fixture mechanism, the connector fixture seat 11 is driven to move "downward", and the movable connector is "stationary" relative to the connector fixture seat 11 under the limit of the cable; at this time, the connector fixture seat 11 moves downward, so as to drive the protruding resistance convex body of the provided movable shaft 111 to abut against the movable outer housing sleeve on the lower main body of the movable connector; at the same time, since the protruding resistance convex body of the movable shaft 111 is subjected to a resistance force, the movable guide rod 112 is driven to move "upward" relative to the inner wall of the provided movable guide hole, and the movable spring 113 is compressed, playing a role of "elastic reset protection". As the gravity increases, the protruding resistance convex body of the movable shaft 111 abuts against the movable outer housing sleeve on the lower main body of the movable connector, realizing the separation of the movable outer housing sleeve from the lower main body of the movable connector, so as to test and calculate the "tensile value" of the movable outer housing sleeve and the lower main body of the movable connector. It should be noted here that since the existing movable connectors are all "large" at the lower part and "small" at the upper part, the fixture groove of the device is used for "movable limiting" the lower part with a large cross-section of the movable connector, and the movable groove of the device is used for "movable limiting" the upper part with a small cross-section of the movable connector.

[0020] In an embodiment, the limiting structure provided on the connector fixture seat 11 of the device "clamps and limits" the upper body of the connector to facilitate stably limiting the movable connector in the fixture mechanism. The provided limiting structure includes a movable seat 114; a first sliding block is connected to the bottom end of the movable seat 114, a first sliding groove is formed in the bottom wall of the movable groove, and the first sliding block is slidably adapted to the first sliding groove; a vertically penetrating limiting groove is formed in the movable seat 114 away from the first sliding block, and movable connecting members for limiting the upper body of the movable connector are movably provided on both side walls of the limiting groove. Among them, both movable connecting members include movable limiting rods 115; both ends of the movable limiting rod 115 are rotatably connected to the movable blocks 116 through rotating shafts, a second sliding groove is formed in the side wall of the limiting groove, and a second sliding block is connected to one end of the movable block 116 close to the second sliding groove, and the second sliding block is slidably adapted. And, a return spring 117 is respectively provided between the movable block 116 and the bottom wall of the limiting groove, one end of the return spring 117 is connected to the movable block 116, and the other end of the return spring 117 is connected to the bottom wall of the limiting groove. In this embodiment, the upper part of the movable connector is pressed forcefully along the movable groove inward; when the upper part of the movable connector passes through the movable connecting member "thus arranged" in the limiting groove of the movable seat 114, at this time, under the action of the return spring 117 in the initial state, the movable limiting rod 115 "relatively protrudes" relative to the side wall of the limiting groove. As the upper part of the movable connector continues to move towards the bottom wall of the limiting groove, when the upper part of the movable connector passes through the two "relatively protruding" movable limiting rods 115 on the side wall of the limiting groove, the two movable limiting rods 115 are subjected to the "squeezing force" of the upper part of the movable connector passing between them, so that while driving the two ends of the movable limiting rod 115 to rotate around the movable blocks 116 rotatably connected to their respective ends respectively, it also drives the second sliding block connected to the movable block 116 to slide along the second sliding groove and move along the bottom wall of the limiting groove through the movable limiting rod 115, compressing the return spring 117, so that the movable limiting rod 115 retracts into the "groove" formed in the limiting groove, allowing the upper part of the movable connector to pass between the two movable limiting rods 115 and enter the bottom end position of the movable seat 114; when the movable limiting rod 115 passes through the two movable limiting rods 115, the two movable limiting rods 115 respectively return to their initial positions under the action of the "restoring deformation" of the return spring 117, that is, "relatively protrude" a certain position relative to the side wall of the limiting groove, and "actively" limit the upper part of the movable connector in the movable seat 114.

[0021] Embodiment 2 Further, in the embodiment, after the movable connector is "movable limited" by the fixture mechanism, the fixture mechanism is then suspended in the air. Based on the gravity value received when "separating the movable housing sleeve of the movable connector from the lower body of the movable connector" through testing, the "tensile value" of the tested movable connector is calculated through substitution. In the embodiment, before testing, the fixture gravity test plate 1 is movably placed in the movable chassis 2, and a weight plate 21 for placing weights is installed and connected to one side end of the movable chassis 2; a hook for hanging weights is connected to the bottom end of the fixture gravity test plate 1. At the same time, one end of the movable chassis 2 is connected to a rotating base 3 for driving the movable chassis 2 to rotate through a connecting plate, the bottom end of the rotating base 3 is connected to a hydraulic rod, and the other end of the hydraulic rod is connected to the test bench 4; a telescopic and rotatable telescopic rod 32 is connected to the top end of the rotating base 3, the other end of the telescopic rod 32 is connected to a horizontal rod 33, the other end of the horizontal rod 33 is connected to a limit clamp 34, and the limit clamp 34 is movably arranged above the movable chassis 2. Moreover, a cable limiting groove for limiting the connecting cable at the top end of the movable connector is formed through the limit clamp 34; a limit sleeve 341 is rotatably connected to the outer wall of the limit clamp 34, and a through slot for the connecting cable at the top end of the movable connector to enter the cable limiting groove is formed through the limit sleeve 341. Additionally, a rotating rod 5 for taking up the connecting cable at the top end of the movable connector is arranged above the limit clamp 34; a cable taking-up limiting groove arranged in a spiral shape is formed in the rotating rod 5; one end of the rotating rod 5 is connected to a rotating shaft, one end of the rotating shaft rotatably passes through a connecting head 51, and a driving mechanism for driving the rotating rod 5 to rotate around the connecting head 51 for cable taking-up is connected to the end; a hydraulic rod for driving the connecting head 51 to lift is connected to the bottom end of the connecting head 51, and the other end of the hydraulic rod is connected to the test bench 4; the driving mechanism includes a connecting gear 52, a driving gear 53, and a servo motor 54; the connecting gear 52 is connected to the end of the rotating shaft away from the rotating rod 5, the connecting gear 52 meshes with the driving gear 53, the driving gear 53 is connected to the output end of the servo motor 54, and the servo motor 54 is installed and connected to the connecting head 51 through a motor bracket.

[0022] Embodiment 3 In an embodiment, after the flexible connector is "flexibly installed" on the fixture mechanism, the connection cable used to connect to the flexible connector is passed through the limit clamp 34 above the fixture mechanism. Subsequently, the limit sleeve 341 can be rotated to limit the connection cable in the limit clamp 34 through the limit sleeve 341. The other end of the connection cable is wound on the wire winding limit groove spirally arranged on the rotating rod 5. Subsequently, by rotating the rotating base 3 by a certain angle, the height and direction of the telescopic rod 32 are adjusted so that the limit clamp 34 connected to the end of the horizontal rod 33 is located "directly below" the rotating rod 5. Then, the height of the rotating base 3 (prior art, realizing rotational adjustment) can be appropriately adjusted as needed. Subsequently, the fixture mechanism and the flexible connector flexibly limited on the fixture mechanism are lifted off the movable chassis 2 by hand and suspended below the limit clamp 34. Subsequently, according to the actual situation, the hydraulic rod connected between the connection head 51 and the test bench 5 or the servo motor 54 is used to control the driving gear 53 to drive the connecting gear 52 to rotate. The connecting gear 52 drives the rotating rod 5 to rotate through the rotating shaft, and the connection cable wound on the rotating rod 5 is wound up, so as to finally adjust the height position of the fixture mechanism and the flexible connector flexibly limited on the fixture mechanism. After the fixture mechanism is stable, observe whether the movable outer casing of the flexible connector is separated from the lower main body of the flexible connector under the "gravity action" of the fixture mechanism. If not, at this time, weights in the weight tray 21 can be hung on the hook at the bottom end of the gravity test tray 1 of the fixture mechanism in the order of "from small to large", and observe whether the movable outer casing of the flexible connector is separated from the lower main body of the flexible connector until the movable outer casing of the flexible connector is separated from the lower main body of the flexible connector, and stop hanging weights. At this time, observe the computer device of the prior art installed on the test bench 4. Through the data on the computer device and through substitution and calculation, the "tensile force value" when the movable outer casing of the flexible connector is separated from the lower main body of the flexible connector is obtained, and finally compared with the required "tensile force value" to determine whether the tested flexible connector meets the requirements. From the perspective of the designed device, the purpose of the device is to reduce the influence of conditions during the tensile force detection of the fiber optic flexible connector, so as to ensure the unity during detection and ensure the detection quality of the tested fiber optic flexible connector under "the same conditions". The device is not only simple and easy to operate, but also can ensure the unity of detection through the device, improve the detection efficiency, and save time and cost.

Claims

1. A device for detecting tension of an SC type optical fiber active connector, characterized in that: It includes a clamp mechanism for limiting and clamping the movable connector; The clamp mechanism comprises a clamp gravity test plate, the top of which is detachably connected to a connector clamp seat by bolts, the connector clamp seat is provided with a clamp groove for limiting a movable connector, and the clamp groove is connected to a movable groove through it; Both sides of the top of the clamp groove are respectively connected with movable structures for abutting against a movable outer shell detachably mounted on the lower body of the movable connector and for separating the movable outer shell from the lower body of the movable connector; A limiting structure for limiting the position of the upper body of the movable connector is movably arranged in the movable groove.

2. The device for detecting tension of an SC type optical fiber active connector according to claim 1, characterized in that: The movable structures all include a movable axis; One end of the movable shaft close to the movable outer shell on the lower body of the movable connector is connected with a protruding resistance protrusion, and the other end of the movable shaft is connected with a movable guide rod. The top of the clamp groove of the connector clamp seat is provided with a movable guide hole, and the end of the movable guide rod away from the movable shaft is movably inserted into the movable guide hole.

3. The device for detecting tension of an SC type optical fiber active connector according to claim 2, characterized in that: The movable guide rods are respectively sleeved with movable springs; One end of the movable spring is connected to the movable guide rod, and the other end of the movable spring is connected to the inner wall of the movable guide hole.

4. The device for detecting tension of an SC type optical fiber active connector according to claim 1, characterized in that: The limiting structure includes a movable seat; The bottom end of the movable seat is connected with a first sliding block, the bottom wall of the movable groove is provided with a first sliding groove, and the first sliding block is slidably adapted to the first sliding groove; The movable seat is provided with a vertically penetrating limiting groove away from the first sliding block, and both side walls of the limiting groove are respectively provided with movable connecting pieces for limiting the upper body of the movable connector.

5. The device for detecting tension of an SC type optical fiber active connector according to claim 4, characterized in that: The movable connecting parts all include movable limiting rods; The two ends of the movable limiting rod are respectively connected to the movable block by rotating shafts, the side wall of the limiting groove is provided with a second sliding groove, and the end of the movable block close to the second sliding groove is connected with a second sliding block, and the second sliding block is slidably adapted.

6. The device for detecting tension of an SC type optical fiber active connector according to claim 5, characterized in that: A return spring is respectively arranged between the movable block and the bottom wall of the limiting groove, one end of the return spring is connected to the movable block, and the other end of the return spring is connected to the bottom wall of the limiting groove.

7. The device for detecting tension of an SC type optical fiber active connector according to claim 1, characterized in that: The clamp gravity test plate is movably placed in a movable chassis, and a weight plate for placing weights is installed and connected to one side end of the movable chassis; The bottom end of the clamp gravity test plate is connected with a hook for hanging a weight.

8. The device for detecting tension of an SC type optical fiber active connector according to claim 7, characterized in that: One end of the movable chassis is connected to a rotating seat for driving the movable chassis to rotate through a connecting plate, the bottom end of the rotating seat is connected to a hydraulic rod, and the other end of the hydraulic rod is connected to a test bench; The top end of the rotating seat is connected with a telescopic rod which can be telescopically rotatably arranged, the other end of the telescopic rod is connected with a horizontal rod, the other end of the horizontal rod is connected with a limit clamp, and the limit clamp is movably arranged above the movable chassis.

9. The device for detecting tension of an SC type optical fiber active connector according to claim 8, characterized in that: The limiting clamp is provided with a cable limiting groove for limiting the connection cable at the top end of the movable connector; The outer wall of the limiting clamp is rotatably connected to the limiting sleeve, and the limiting sleeve is penetrated by a through-slit for the connecting cable at the top end of the movable connector to pass into the cable limiting groove.

10. The device for detecting tension of an SC type optical fiber active connector according to claim 9, characterized in that: A rotating rod for reeling in the connecting cable at the top of the movable connector is provided above the limit clamp; The rotating rod is provided with a spirally arranged wire-receiving limiting groove; One end of the rotating stick is connected to a rotating shaft, one end of the rotating shaft can rotatably pass through a connecting head, and the end is connected to a driving mechanism for driving the rotating stick to rotate around the connecting head to collect the wire; The bottom end of the connector is connected to a hydraulic rod for driving the connector to rise and fall, and the other end of the hydraulic rod is connected to the test bench; The driving mechanism comprises a connecting gear, a driving gear and a servo motor; The connecting gear is connected to one end of the rotating shaft away from the rotating rod, the connecting gear is meshed with the driving gear, the driving gear is connected to the output end of the servo motor, and the servo motor is installed and connected to the connecting head through a motor bracket.

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