High-speed cable testing device

Abstract

The invention provides a high-speed cable testing device applied to the field of testing devices. The high-speed cable testing device comprises a rack, and a traction mechanism and a clamping mechanism are arranged on the rack; a diameter detection mechanism is arranged on the rack, the diameter detection mechanism comprises a C-shaped split ring on a third support, clamping plates and a displacement sensor are arranged on the C-shaped split ring, and target plates matched with the displacement sensor are fixed to the sides, away from each other, of the two sets of clamping plates; the opposite sides of the two sets of clamping plates are each provided with a detection port and a telescopic cutting board. The third support is provided with a gear set used for driving the C-shaped split ring to rotate. According to the invention, the diameter change of the cable in the stretching process can be measured; meanwhile, due to the rotation function of the C-shaped opening ring and the arrangement of the telescopic cutting board, the diameter of the cable can be detected in an all-around mode, internal structures such as an insulating layer of the cable can be detected, the testing requirements of high-speed cables of different specifications can be met, and applicability and universality are achieved.

Description

Technical Field

[0001] This application relates to the field of testing devices, and particularly to a testing device for high-speed cables. Background Art

[0002] In the new material industry, to adapt to the rapid development of information technology, new materials for high-speed cables have been designed and are increasingly widely used in fields such as communication and electronics. During actual use, high-speed cables need to withstand various mechanical stresses and environmental factors, and their quality and performance are directly related to the stability and reliability of the entire system.

[0003] In existing cable testing technologies, there are many deficiencies in the testing of high-speed cables. For example, existing detection devices cannot dynamically and accurately measure the diameter change of cables under different stress states, nor can they deeply detect the structure such as the insulating layer of the cables. In addition, for the clamping of high-speed cables, existing clamping mechanisms are prone to damaging the cables, affecting the accuracy of test results, and also unable to meet the testing requirements of high-speed cables of different specifications.

[0004] For this reason, a testing device for high-speed cables is proposed.

[0005] Therefore, it is of great practical significance to develop a device that can precisely control the traction force, accurately detect the diameter change of the cable, reliably clamp the high-speed cable, and is suitable for testing cables of various specifications. Summary of the Invention

[0006] The purpose of this application is to solve the technical problem that the existing cable testing device cannot detect the diameter change of the cable during the traction force test. Compared with the existing technology, a testing device for high-speed cables is provided, including a frame. On the frame, there is a traction mechanism for providing traction force at both ends of the cable to be tested. The traction mechanism includes two sets of oppositely arranged sliders, and clamping mechanisms for clamping the ends of the cable to be tested are fixed on the tops of the sliders.

[0007] A diameter detection mechanism is fixed on the frame through an XZ-axis linear module. The diameter detection mechanism includes a support three fixed on the output end of the XZ-axis linear module. On one side of the support three, a C-shaped open ring is rotatably connected. There are two sets of symmetrically arranged through chutes on the C-shaped open ring. A clamping plate is slidably connected in each through chute. A tension chute is provided on the clamping plate. A connecting column is provided in the through chute and is matched with the tension chute. A tension spring is clamped between the connecting column and the tension chute. On one side of the outer wall of the C-shaped open ring, two sets of symmetrically arranged displacement sensors are symmetrically fixed. On the side of the two clamping plates away from each other, a target plate matched with the displacement sensor is fixed.

[0008] On the side of the two clamping plates facing each other, detection ports are provided, and a telescopic knife plate is also slidably connected in the clamping plate.

[0009] The bracket three is provided with a gear set for driving the C-shaped open ring to rotate.

[0010] Furthermore, a knife edge is fixed to one end of the telescopic knife plate, the knife edge is arranged on one side of the detection port, and a spring sheet is fixed to the other end of the telescopic knife plate;

[0011] The spring sheet has the elastic force to drive the two sets of telescopic blades away from each other. The two sets of telescopic blades have a magnetic attraction force to attract each other when power is on. The tensioning spring has the elastic force to drive the two sets of clamps closer together. The clamp is also provided with an introduction groove on the side close to the opening of the C-shaped opening ring.

[0012] Furthermore, a C-shaped open slide rail and a C-shaped open external gear are fixed on the C-shaped open ring, and a ring-shaped open slide groove matching the C-shaped open slide rail is provided on bracket three. The output gear of the gear set is meshed with the C-shaped open external gear, and the driving gear of the gear set is driven by a motor.

[0013] Furthermore, the traction mechanism includes two groups of brackets symmetrically fixed on the frame, two groups of symmetrically arranged double-headed screws are rotatably arranged between the two groups of brackets, a nut seat matching the double-headed screw is fixed on the slide, and a traction motor is also fixed on one side of the bracket, and the output end of the traction motor is connected to the double-headed screw through a reduction mechanism.

[0014] Furthermore, the clamping mechanism includes a bracket 2 fixed on the slide, a protective cover is fixed inside the bracket 2, two groups of symmetrically arranged deflection seats are arranged inside the protective cover, a rotating shaft 1 is fixed on the side away from each other of the two groups of deflection seats, and a bearing seat 1 matched with the rotating shaft 1 is arranged on the protective cover;

[0015] The two groups of deflection seats are rotatably connected with a vortex diameter-changing wheel and an auxiliary wheel, and the auxiliary wheel is provided with a driving mechanism for driving the vortex diameter-changing wheel and the auxiliary wheel to rotate relative to each other. The driving mechanism is also used to drive the deflection seat to rotate around the axis of rotation axis one.

[0016] Furthermore, the driving mechanism includes a driving motor and a main gear, a rotating shaft 2 is fixed at both ends of the auxiliary wheel, a bearing seat 2 corresponding to the rotating shaft 2 is provided on the deflection seat, the driving motor is fixed on one side of the deflection seat, the output end of the driving motor is fixedly connected to the rotating shaft 2, a spline shaft is also provided on the rotating shaft 2, a spline groove matching the spline shaft is provided on the main gear, a reset spring is fixed between the rotating shaft 2 and the auxiliary wheel, and an electromagnetic ring is fixed on the side of the main gear away from the auxiliary wheel;

[0017] A buffer groove is provided at one end of the deflection seat away from the bearing seat 2, a buffer slider is slidably connected in the buffer groove, a buffer spring is fixed between the buffer slider and the buffer groove, a rotating shaft 3 is fixed at both ends of the vortex variable diameter wheel, the rotating shaft 3 is rotatably connected in the buffer slider, and a secondary gear meshing with the main gear is also fixed on the rotating shaft 3;

[0018] A guide wheel is also fixed to the end of the third rotating shaft. A first guide groove matching with the guide wheel is provided on the protective cover. A second guide groove and an arc-shaped rack are also provided on one side of the protective cover away from the first guide groove. The arc-shaped rack is matched with the main gear.

[0019] Furthermore, the return spring has a pulling force that drives the main gear to approach the auxiliary wheel. In the free state of the return spring, the main gear approaches the auxiliary wheel and is separated from the arc-shaped rack, and the meshing state is disconnected. Under the energized condition, the electromagnetic ring has a magnetic suction force on the deflection seat. At this time, the main gear moves away from the auxiliary wheel and remains in the meshing state with the arc-shaped rack;

[0020] The buffer spring has an elastic force that drives the buffer slider to move downward and approach the first rotating shaft. When the buffer slider moves to the maximum stroke away from the first rotating shaft in the buffer chute, the secondary gear is disengaged from the main gear.

[0021] Furthermore, the first guide groove is a variable-diameter arc-shaped groove structure. The center of the first guide groove is located on the axis of the first bearing seat. The upper half arc radius thereof is equal to the axial distance between the guide wheel and the first rotating shaft. The lower half arc radius of the first guide groove gradually becomes smaller, and the maximum change difference is equal to the maximum stroke of the buffer slider in the deflection seat;

[0022] The center of the second guide groove is located on the axis of the first bearing seat. The arc radius of the second guide groove is equal to the axial distance between the second rotating shaft and the first rotating shaft.

[0023] Furthermore, when the two sets of spiral variable-diameter wheels clamp the cable, they rotate relative to each other, and the rotation direction is the direction in which the outer diameter becomes larger from smaller;

[0024] A rubber edging is also provided on the outer side of the spiral variable-diameter wheel.

[0025] Furthermore, the weight of the auxiliary wheel is greater than that of the spiral variable-diameter wheel, and a V-shaped groove is provided inside the auxiliary wheel.

[0026] Compared with the prior art, the advantages of this application are as follows:

[0027] Through the cooperation of the tension spring, the clamping plate, the displacement sensor and the target plate in the proposed diameter detection mechanism of the present invention, the diameter change of the cable during the stretching process can be measured; at the same time, the rotation function of the C-shaped split ring and the setting of the telescopic knife plate can not only detect the cable diameter in all directions, but also detect the internal structures such as the insulating layer of the cable, providing more comprehensive data support for the cable quality assessment, being able to adapt to the test requirements of high-speed cables of different specifications, and having wide applicability and good versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of this application;

[0029] Figure 2 It is a schematic structural diagram of the diameter detection mechanism proposed in this application;

[0030] Figure 3 It is an exploded structural diagram of the diameter detection mechanism proposed in this application;

[0031] Figure 4 It is an exploded structural diagram of the C-shaped split ring and its components proposed in this application;

[0032] Figure 5 It is an exploded structural diagram of the clamping plate and its components proposed in this application;

[0033] Figure 6 It is a schematic diagram of the state when the clamping plate cooperates with the cable in this application;

[0034] Figure 7 It is a schematic structural diagram of the traction mechanism proposed in this application;

[0035] Figure 8 It is a schematic structural diagram of the clamping mechanism proposed in this application;

[0036] Figure 9 It is an exploded structural diagram of the clamping mechanism proposed in this application;

[0037] Figure 10 It is an exploded structural diagram of the deflection seat and its components proposed in this application;

[0038] Figure 11 It is a perspective view of the structure of the vortex wire diameter-changing wheel proposed in this application;

[0039] Figure 12 It is a schematic structural diagram of the auxiliary wheel proposed in this application;

[0040] Figure 13 It is a schematic diagram of the operating state of the vortex wire diameter-changing wheel and the auxiliary wheel proposed in this application.

[0041] Description of the reference numerals in the figure:

[0042] 1. Frame;

[0043] 2. Traction mechanism; 21. Bracket 1; 22. Traction motor; 23. Double-headed lead screw; 24. Slide table; 241. Nut seat; 25. Reduction mechanism;

[0044] 3. Clamping mechanism; 31. Second bracket; 32. Protective cover; 321. First guiding groove; 322. First bearing seat; 323. Second guiding groove; 324. Arc-shaped rack; 33. Spiral variable-diameter wheel; 331. Third rotating shaft; 3311. Guide wheel; 332. Sub-gear; 333. Rubber edge; 34. Auxiliary wheel; 341. Second rotating shaft; 3411. Spline shaft; 342. Return spring; 343. Main gear; 3431. Spline groove; 3432. Electromagnetic ring; 344. V-shaped groove; 35. Deflection seat; 351. First rotating shaft; 352. Buffer sliding groove; 353. Second bearing seat; 36. Buffer slider; 361. Buffer spring; 37. Driving motor

[0045] 4. Cable

[0046] 5. XZ-axis linear module

[0047] 6. Diameter detection mechanism; 61. Third bracket; 611. Gear set; 612. Annular open sliding groove; 62. C-shaped open ring; 621. C-shaped open sliding rail; 622. C-shaped open external gear; 623. Through sliding groove; 624. Connecting column; 625. Tension spring; 63. Displacement sensor; 64. Clamping plate; 641. Tension sliding groove; 642. Detection port; 643. Import bevel; 65. Target plate; 66. Telescopic knife plate; 661. Knife edge; 662. Spring piece Detailed implementation manners

[0048] In the embodiments, the technical solutions of the present application will be clearly and completely described in conjunction with the accompanying drawings of the specification. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present application

[0049] For the embodiments, please refer to Figure 1 - Figure 13 , the purpose of the present invention is to provide a testing device for high-speed cables, which can record the diameter deformation of the cable to be tested while performing traction tests on the cable, so as to test the outer insulation of the cable under traction and ensure the insulation safety of the cable during use

[0050] As Figure 1 shown, it includes a frame 1. The frame 1 serves as the basic support structure of the entire device, providing a stable platform for the installation and operation of other components

[0051] Please refer to Figure 1 and Figure 7, a traction mechanism 2 for providing traction force at both ends of the cable 4 to be tested is provided on the frame 1. The traction mechanism 2 includes two sets of relatively arranged sliding platforms 24. Clamping mechanisms 3 for clamping the ends of the cable 4 to be tested are fixed on the tops of the sliding platforms 24. Specifically, the traction mechanism 2 further includes two sets of brackets 21 symmetrically fixed on the frame 1. Two sets of symmetrically arranged double-headed lead screws 23 are rotatably arranged between the two sets of brackets 21. A nut seat 241 matched with the double-headed lead screw 23 is fixed on the sliding platform 24. A traction motor 22 is also fixed on one side bracket 21. The output end of the traction motor 22 is in transmission connection with the double-headed lead screw 23 through a reduction mechanism 25.

[0052] When the traction motor 22 is started, the double-headed lead screw 23 is driven to rotate through the reduction mechanism 25. Since the nut seat 241 is fixedly connected with the sliding platform 24 and the nut seat 241 is matched with the double-headed lead screw 23, the two sliding platforms 24 move relatively or away from each other, providing a stable and precisely controllable traction force for the cable 4 to be tested.

[0053] Please refer to Figure 2 - Figure 6 , a diameter detection mechanism 6 is fixed on the frame 1 through an XZ-axis linear module 5. The diameter detection mechanism 6 includes a bracket 61 fixed on the output end of the XZ-axis linear module 5. A C-shaped open ring 62 is rotatably connected to one side of the bracket 61. Two sets of symmetrically arranged through slots 623 are provided on the C-shaped open ring 62. Clamping plates 64 are slidably connected in the through slots 623. Tension slots 641 are provided on the clamping plates 64. Connecting columns 624 matched with the tension slots 641 are provided in the through slots 623. A tension spring 625 is clamped between the connecting column 624 and the tension slot 641. Two sets of symmetrically arranged displacement sensors 63 are symmetrically fixed on the outer wall of one side of the C-shaped open ring 62. Target plates 65 matched with the displacement sensors 63 are fixed on the sides of the two clamping plates 64 away from each other.

[0054] The position of the diameter detection mechanism 6 in space can be adjusted by the XZ-axis linear module 5 to meet the cable testing requirements at different positions and with different diameters. When the cable passes through the C-shaped opening ring 62, under the action of the tension spring 625, the two sets of clamping plates 64 will tightly fit on the surface of the cable. At this time, the initial diameter data of the cable can be recorded by using the feedback data of the displacement sensor 63 and the target plate 65. As the diameter of the cable changes during the stretching process, due to the problem of the cable's own mass, the diameter change point of the cable may not appear in the middle of the cable. The XZ-axis linear module 5 can be used to drive the diameter detection mechanism 6 to be clamped on the cable and translated, and the change data fed back by the displacement sensor 63 can be used to locate the diameter change point of the cable. During the subsequent continuous traction process, the clamping plate 64 will slide in the through chute 623 following the diameter change at the diameter change point, thereby driving the target plate 65 to move. By detecting the displacement change of the target plate 65, the displacement sensor 63 can accurately measure the change in the diameter of the cable.

[0055] The C-shaped opening ring 62 is also fixed with a C-shaped opening slide rail 621 and a C-shaped opening external gear 622. The support three 61 is provided with an annular opening chute 612 that matches the C-shaped opening slide rail 621. The output gear of the gear set 611 meshes with the C-shaped opening external gear 622. The driving gear of the gear set 611 is driven by a motor. When the motor drives the gear set 611 to rotate, the C-shaped opening external gear 622 is driven to rotate through gear meshing, and then the C-shaped opening ring 62 rotates around its central axis. During the rotation of the C-shaped opening ring 62, through the cooperation of the C-shaped opening slide rail 621 and the annular opening chute 612, the stability of the rotation is ensured, and then the rotational diameter data collection can be carried out at the diameter change point to comprehensively collect the diameter change amount.

[0056] Detection ports 642 are provided on the opposite sides of the two sets of clamping plates 64. To reduce the friction between the detection ports 642 and the cable surface, the detection ports 642 are smoothly set to facilitate the translation action when the detection ports 642 contact the outer wall of the cable. A retractable knife plate 66 is also slidably connected inside the clamping plate 64. One end of the retractable knife plate 66 is fixed with a knife edge 661, and the knife edge 661 is arranged on one side of the detection port 642. The other end of the retractable knife plate 66 is fixed with a spring piece 662. Specifically, the spring piece 662 has an elastic force to drive the two sets of retractable knife plates 66 away from each other, and the two sets of retractable knife plates 66 have a magnetic attraction force to adsorb each other under the condition of being energized. The tension spring 625 has an elastic force to drive the two sets of clamping plates 64 closer to each other. The clamping plate 64 is also provided with a guiding bevel 643 on the side close to the opening of the C-shaped opening ring 62, and the setting of the guiding bevel 643 facilitates the cable to smoothly enter the C-shaped opening ring 62 and be clamped by the clamping plate 64.

[0057] When it is necessary to detect the change in the diameter of the internal wire harness of the cable, the control circuit can be used to energize the two sets of retractable knife plates 66. Under the action of magnetic attraction, the retractable knife plates 66 extend and are higher than the plane of the detection port 642. At this time, the cutting edge 661 is used to clamp into the insulating layer of the cable. At the same time, the tension spring 625 provides the elastic force for the cutting edge 661 to cut into the insulating layer. Cooperating with the rotation of the C-shaped split ring 62, a circumcision operation is performed on the insulating layer of the cable. Since the two ends of the cable are subjected to traction at this time, when the insulating layer is ring-cut, the insulating layer loses traction and retracts, thereby exposing the wire harness layer. At this time, the retractable knife plate 66 retracts, and the detection port 642 is used to further detect the internal structure of the cable. When such operations are not required, the elastic force of the spring piece 662 causes the retractable knife plate 66 to retract, avoiding unnecessary damage to the cable.

[0058] Please refer to Figure 8 - Figure 13 , the clamping mechanism 3 includes a second bracket 31 fixed on the sliding table 24. A protective cover 32 is fixed inside the second bracket 31. Two sets of symmetrically arranged deflection seats 35 are provided inside the protective cover 32. Rotating shafts 351 are fixed on the sides of the two sets of deflection seats 35 away from each other. Bearing seats 322 matching the rotating shafts 351 are provided on the protective cover 32. A spiral variable-diameter wheel 33 and an auxiliary wheel 34 are respectively rotatably connected between the two sets of deflection seats 35. A V-shaped groove 344 is provided inside the auxiliary wheel 34, which helps to better stabilize cables with different diameters and provide a reliable clamping force. A driving mechanism is provided on the auxiliary wheel 34. The driving mechanism is used to drive the spiral variable-diameter wheel 33 and the auxiliary wheel 34 to rotate relative to each other. The driving mechanism is also used to drive the deflection seat 35 to rotate around the axis of the rotating shaft 351.

[0059] The driving mechanism includes a driving motor 37 and a main gear 343. Rotating shafts 341 are fixed at both ends of the auxiliary wheel 34. Bearing seats 353 corresponding to the rotating shafts 341 are provided on the deflection seat 35. The driving motor 37 is fixed on one of the deflection seats 35. The output end of the driving motor 37 is fixedly connected to the rotating shaft 341. A spline shaft 3411 is also provided on the rotating shaft 341. A spline groove 3431 matching the spline shaft 3411 is provided on the main gear 343. A return spring 342 is fixed between the rotating shaft 341 and the auxiliary wheel 34. An electromagnetic ring 3432 is fixed on the side of the main gear 343 away from the auxiliary wheel 34.

[0060] One end of the deflection seat 35 away from the bearing seat two 353 is provided with a buffer sliding groove 352. A buffer slider 36 is slidably connected in the buffer sliding groove 352. A buffer spring 361 is also fixed between the buffer slider 36 and the buffer sliding groove 352. Both ends of the spiral variable-diameter wheel 33 are fixed with a third rotating shaft 331. The third rotating shaft 331 is rotatably connected in the buffer slider 36. A secondary gear 332 meshing with the main gear 343 is also fixed on the third rotating shaft 331. A guide wheel 3311 is further fixed at the end of the third rotating shaft 331. A first guide groove 321 matching with the guide wheel 3311 is provided on the protective cover 32. A second guide groove 323 and an arc-shaped rack 324 are also provided on the side of the protective cover 32 away from the first guide groove 321. The arc-shaped rack 324 cooperates with the main gear 343.

[0061] The return spring 342 has a pulling force that drives the main gear 343 to approach the auxiliary wheel 34. In the free state of the return spring 342, the main gear 343 approaches the auxiliary wheel 34 and is separated from the arc-shaped rack 324 and disengaged from the meshing state. The electromagnetic ring 3432 has a magnetic attraction force on the deflection seat 35 under the energized condition. At this time, the main gear 343 moves away from the auxiliary wheel 34 and remains in the meshing state with the arc-shaped rack 324.

[0062] The buffer spring 361 has an elastic force that drives the buffer slider 36 to move downward and approach the first rotating shaft 351. When the buffer slider 36 displaces to the maximum stroke away from the first rotating shaft 351 in the buffer sliding groove 352, the secondary gear 332 is disengaged from the main gear 343. The first guide groove 321 is a variable-diameter arc-shaped groove structure. Specifically, the center of the first guide groove 321 is located on the axis of the bearing seat one 322, and the upper half arc radius thereof is equal to the axial distance between the guide wheel 3311 and the first rotating shaft 351. The lower half arc radius of the first guide groove 321 gradually becomes smaller, and the maximum change difference is equal to the maximum stroke of the buffer slider 36 in the deflection seat 35. The center of the second guide groove 323 is located on the axis of the bearing seat one 322, and the arc radius of the second guide groove 323 is equal to the axial distance between the second rotating shaft 341 and the first rotating shaft 351.

[0063] When it is necessary to clamp the cable, the drive motor 37 is started, and the auxiliary wheel 34 is driven to rotate through the second rotating shaft 341. At the same time, by using the meshing of the main gear 343 and the secondary gear 332, the spiral variable-diameter wheel 33 and the auxiliary wheel 34 are driven to rotate relatively, and the relative distance between the spiral variable-diameter wheel 33 and the auxiliary wheel 34 is adjusted to match the diameter of the cable to be clamped, so as to preliminarily clamp the end of the cable. By using the special structure of the spiral variable-diameter wheel 33 and the rubber wrapping 333, it can better adapt to the clamping requirements of different specifications of cables and will not cause damage to the cable.

[0064] To prevent the cable from falling off between the spiral diameter-changing wheel 33 and the auxiliary wheel 34, it is also necessary to drive the spiral diameter-changing wheel 33 and the auxiliary wheel 34 to rotate around the first rotating shaft 351, wind the end of the cable around the auxiliary wheel 34, and utilize the frictional force of the wound part to further enhance the stable clamping force. Specifically, when the spiral diameter-changing wheel 33 continues to rotate after clamping the cable, since the outer diameter of the spiral diameter-changing wheel 33 in contact with the cable gradually increases, it will lift the spiral diameter-changing wheel 33 and the buffer slider 36 to move upward in the buffer chute 352 to the maximum displacement value. At this time, the secondary gear 332 moves upward to release the meshing state with the main gear 343, and at the same time, the electromagnetic ring 3432 is energized. Specifically, a contact switch can be set at the top of the buffer chute 352, and the energization condition of the electromagnetic ring 3432 is determined by the contact switch. At this time, the main gear 343 overcomes the pulling force of the return spring 342 and displaces to mesh with the arc-shaped rack 324. During the rotation of the main gear 343, it drives the deflection seat 35 to rotate around the axis of the first rotating shaft 351, thereby realizing the cable winding operation. During this process, the guide wheel 3311 slides in the first guide groove 321. When it slides to the lower end of the first guide groove 321, since the arc radius of the lower half of the first guide groove 321 gradually becomes smaller, and the maximum change difference is equal to the maximum stroke of the buffer slider 36 in the deflection seat 35, at this time, the first guide groove 321 will gradually squeeze the spiral diameter-changing wheel 33 and make the spiral diameter-changing wheel 33 approach the auxiliary wheel 34, so that the spiral diameter-changing wheel 33 and the auxiliary wheel 34 further clamp the end of the cable;

[0065] When the guide wheel 3311 displaces to the lower end point of the first guide groove 321, on the one hand, the contact switch disconnects the energization state of the electromagnetic ring 3432, so that the main gear 343 resets to release the meshing state with the arc-shaped rack 324. On the other hand, through the extrusion of the first guide groove 321 on the guide wheel 3311, the secondary gear 332 moves downward to mesh with the main gear 343 again. At this time, the main gear 343 flips, increasing the gap between the driving spiral diameter-changing wheel 33 and the auxiliary wheel 34, releasing the clamping of the cable end. At the same time, since the weight of the auxiliary wheel 34 is greater than that of the spiral diameter-changing wheel 33, under the action of gravity, the driving spiral diameter-changing wheel 33 and the auxiliary wheel 34 rotate reversely around the first rotating shaft 351, realizing the state of releasing the clamping and resetting.

[0066] The specific test process is as follows:

[0067] I. Installation and commissioning of the test device:

[0068] 1. Installation of the frame: Select a horizontal, solid ground with sufficient load-bearing capacity as the installation foundation, and place the frame 1 steadily; use a level to check the levelness of the frame 1, and ensure that the frame 1 is in a horizontal state by adjusting the anchor bolts at the bottom of the frame 1, with the error controlled within the design range (±0.1°) to ensure the stability of the installation and operation of subsequent components.

[0069] II. Installation and Debugging of Traction Mechanism:

[0070] 1. Installation of Bracket and Lead Screw: Install the two groups of brackets 21 symmetrically on the frame 1 according to the design requirements, and fasten them with bolts to ensure firm installation and accurate position; then, install the two groups of symmetrically arranged double-headed lead screws 23 between the two groups of brackets 21, ensure the rotational flexibility of the lead screw through the bearing seat, and at the same time adjust the levelness and coaxiality of the lead screw so that the error is controlled within the specified range (the coaxiality error does not exceed ±0.05 mm).

[0071] 2. Installation of Slide Table and Nut Seat: Install the slide table 24 on the guide rail on the frame 1 to ensure that the slide table 24 can slide smoothly on the guide rail. Fix the nut seat 241 on the slide table 24 and install it in cooperation with the double-headed lead screw 23, and check whether the thread fit between the nut seat 241 and the lead screw is good without jamming.

[0072] 3. Installation of Motor and Reduction Mechanism: Fix the traction motor 22 on one side of the bracket 21, connect the output shaft of the traction motor 22 with the input shaft of the reduction mechanism 25 through a coupling to ensure the concentricity of the connection, and control the error within the design range (±0.03 mm); then drive-connect the output shaft of the reduction mechanism 25 with the double-headed lead screw 23.

[0073] 4. Debugging of Traction Mechanism: Connect the power supply of the traction motor 22 and conduct no-load trial operation; set different running speeds and strokes through the controller, observe the movement of the slide table 24, check whether it is stable and accurate, and whether there are abnormal phenomena such as jamming and abnormal noise; use a displacement sensor to accurately measure the displacement of the slide table 24 and compare it with the set value. If there is a deviation, make corresponding adjustments and calibrations to ensure that the displacement accuracy of the slide table 24 reaches the design requirements (the error does not exceed ±0.1 mm).

[0074] III. Installation and Debugging of Diameter Detection Mechanism

[0075] 1. Installation of XZ Axis Linear Module: Install the XZ axis linear module 5 on the frame 1 and fix it with bolts to ensure firm installation and accurate position. Use a level and a square to check the levelness and perpendicularity of the XZ axis linear module 5, and control the error within the design range (the levelness error does not exceed ±0.1°, and the perpendicularity error does not exceed ±0.05°).

[0076] 2. Installation of the diameter detection component: Install the bracket three 61 on the output end of the XZ-axis linear module 5 to ensure a firm connection; Rotate and connect the C-shaped opening ring 62 to one side of the bracket three 61. Through the cooperation of the C-shaped opening slide rail 621 and the annular opening chute 612, ensure that the C-shaped opening ring 62 can rotate flexibly; Install components such as the clamping plate 64, connecting column 624, tension spring 625, displacement sensor 63, and target plate 65, and check whether the installation of each component is correct and firm, and whether the sliding of the clamping plate 64 in the through chute 623 is smooth.

[0077] 3. Debugging of the diameter detection mechanism: Turn on the power supplies of the XZ-axis linear module 5 and the displacement sensor 63 and conduct a trial run; Control the movement of the XZ-axis linear module 5 in the X-axis and Z-axis directions through the controller to check its movement accuracy and stability; Use a cable model with a standard diameter for simulation detection. Pass the cable model through the C-shaped opening ring 62 and observe whether the reading of the displacement sensor 63 accurately reflects the diameter of the cable model. If there are deviations, make corresponding adjustments and calibrations to ensure that the accuracy of the diameter detection reaches the design requirement, and the diameter measurement error does not exceed ±0.01 mm.

[0078] IV. Installation and debugging of the clamping mechanism:

[0079] 1. Installation of the bracket and the protective cover: Fix the bracket two 31 on the slide table 24 to ensure a firm installation; Install the protective cover 32 inside the bracket two 31 and fasten it with bolts to ensure the protection and stability of the protective cover 32.

[0080] 2. Installation of internal components: Install components such as the deflection seat 35, rotating shaft one 351, bearing seat one 322, spiral variable-diameter wheel 33, auxiliary wheel 34, and drive mechanism. Install the rotating shaft two 341 and the rotating shaft three 331 on the corresponding bearing seats respectively to ensure flexible rotation. Install components such as the main gear 343, auxiliary gear 332, electromagnetic ring 3432, buffer slider 36, buffer spring 361, and guide wheel 3311, and check whether the installation of each component is correct and firm, whether the meshing of the gears is good, and there is no jamming phenomenon.

[0081] 3. Debugging of the clamping mechanism: Turn on the power supplies of the drive motor 37 and the electromagnetic ring 3432 and conduct a trial run; Control the forward and reverse rotation and speed of the drive motor 37 through the controller, observe the relative rotation of the spiral variable-diameter wheel 33 and the auxiliary wheel 34, and check whether it can normally clamp and release the cable; Control the energization and de-energization of the electromagnetic ring 3432, observe the meshing and separation of the main gear 343 and the arc-shaped rack 324, and whether the angle adjustment of the deflection seat 35 is accurate and flexible. Use cable models with different diameters for simulation clamping tests, check the adaptability of the clamping mechanism 3 to cables of different specifications and the stability of the clamping force. If there are problems, make corresponding adjustments and optimizations.

[0082] V. Cable Testing Operation Process:

[0083] 1. Initial State Inspection: Before clamping the cable, check the initial state of the clamping mechanism 3 to ensure that the spiral wire diameter-changing wheel 33 and the auxiliary wheel 34 are in appropriate positions, the main gear 343 and the sub-gear 332 are in a meshing state, and the buffer slider 36 is in the initial position under the action of the buffer spring 361.

[0084] 2. Cable Placement: Place one end of the high-speed cable 4 to be tested between the spiral wire diameter-changing wheel 33 and the auxiliary wheel 34 of one side clamping mechanism 3, noting that the cable should be kept as horizontal and centered as possible.

[0085] 3. Preliminary Cable Clamping: Start the drive motor 37. The drive motor 37 drives the auxiliary wheel 34 to rotate through the second rotating shaft 341. Under the meshing action of the main gear 343 and the sub-gear 332, the spiral wire diameter-changing wheel 33 is driven to rotate relative to the auxiliary wheel 34. As the rotation progresses, the spiral wire diameter-changing wheel 33 gradually approaches the cable. Using its special spiral wire structure and rubber edge 333, it clamps the cable together with the auxiliary wheel 34 to ensure that the cable is firmly clamped and not damaged by excessive extrusion.

[0086] 4. Winding Clamping: Energize the electromagnetic ring 3432. The electromagnetic ring 3432 generates magnetic suction force, causing the main gear 343 to move away from the auxiliary wheel 34 and remain in a meshing state with the arc-shaped rack 324. The drive motor 37 continues to rotate. Through the meshing of the main gear 343 and the arc-shaped rack 324, the deflection seat 35 is driven to rotate around the axis of the first rotating shaft 351, thus realizing the winding clamping action of the cable.

[0087] Place the other end of the cable on the other side clamping mechanism 3 in the same way, and perform preliminary clamping and winding clamping to ensure that the clamping states at both ends of the cable are consistent.

[0088] VI. Preparation for Diameter Detection:

[0089] 1. Position Adjustment: Control the XZ-axis linear module 5 through the controller to move it in the X-axis and Z-axis directions, and adjust the diameter detection mechanism 6 to the part of the cable where the diameter needs to be detected. Ensure that the center of the C-shaped opening ring 62 approximately coincides with the center of the cable, and the error is controlled within the design range (±0.5 mm).

[0090] 2. Card Plate Fitting: Under the action of the tension spring 625, the two groups of card plates 64 will tightly fit on the cable surface. Observe the fitting situation of the card plates 64 to ensure good contact between the card plates 64 and the cable surface without gaps or looseness. At this time, the displacement sensor 63 and the target plate 65 are in the initial working state, and the initial displacement reading is recorded.

[0091] VII. Tensile Test and Diameter Detection:

[0092] 1. Tensile test start: Start the traction motor 22, drive the double-headed lead screw 23 to rotate through the reduction mechanism 25, make the two groups of sliding tables 24 move relative to each other, and apply a tensile force to the cable 4 to be tested; According to the test requirements, set the running speed of the traction motor 22 and the magnitude of the tensile force through the controller. Generally, start with a lower speed and a smaller tensile force, and gradually increase to the tensile force required for the test.

[0093] 2. Real-time diameter detection: During the stretching process, the diameter of the cable will change with the stress condition; The change in the cable diameter will cause the clamping plate 64 to slide within the through chute 623, thereby driving the target plate 65 to move. The displacement sensor 63 detects the displacement change of the target plate 65 in real time and transmits the data to the control system; The control system processes and analyzes the displacement data, calculates the diameter change of the cable at different stretching stages, and displays it on the display screen in real time.

[0094] 3. Optional multi-angle diameter detection: If multi-angle diameter detection of the cable is required, during the stretching process, drive the driving gear of the motor-driven gear set 611 to rotate, so that the C-shaped open ring 62 rotates around its central axis. During the rotation process, continuously record the cable diameter data at different angles to obtain more comprehensive cable diameter change information.

[0095] 4. Optional insulation layer detection: If it is necessary to detect the internal structure such as the insulation layer of the cable, when the cable is stretched to a certain extent or reaches a specific test stage, make the two groups of telescopic knife plates 66 energized through the control circuit. Under the action of magnetic suction, the telescopic knife plates 66 extend, and use the knife edge 661 to cut or puncture the insulation layer of the cable. At the same time, combine other detection devices such as an insulation resistance tester to detect the internal structure of the cable and obtain relevant performance data.

[0096] VIII. Test end and data processing:

[0097] 1. Test stop: When the cable reaches the predetermined tensile force or breaks, etc., stop the operation of the traction motor 22 and end the tensile test.

[0098] 2. Cable release: Control the drive motor 37 to reverse, make the spiral variable diameter wheel 33 and the auxiliary wheel 34 rotate in the reverse direction to release the cable; At the same time, disconnect the power supply of the electromagnetic ring 3432 to separate the main gear 343 from the arc-shaped rack 324.

[0099] 3. Data processing and analysis: Organize and analyze the data such as tensile force, displacement, and diameter change recorded during the test. According to relevant standards and requirements, calculate performance indicators such as the tensile strength, elongation at break, and diameter change rate of the cable. Compare the test results with the expected standards to determine whether the cable is qualified.

[0100] 4. Report generation: Generate a detailed test report based on the data processing and analysis results, including test items, test conditions, test results, conclusions, etc. The report should be clear, accurate, and complete to provide a basis for the quality assessment and improvement of the cable.

[0101] Through the coordinated work of the tension spring 625, the clamping plate 64, the displacement sensor 63, and the target plate 65 in the diameter detection mechanism 6 proposed by the present invention, the diameter change of the cable during the stretching process can be measured in real time and accurately. At the same time, the rotation function of the C-shaped split ring 62 and the setting of the telescopic knife plate 66 can not only detect the cable diameter in all directions but also detect the internal structures such as the insulation layer of the cable, providing more comprehensive data support for the cable quality assessment. Meanwhile, the preliminary clamping and winding clamping of the relative rotation of the spiral variable-diameter wheel 33 and the auxiliary wheel 34 in the clamping mechanism 3, combined with the rubber edge 333 and the V-shaped groove 344, can reliably clamp high-speed cables of different specifications without damaging the cables, ensuring the clamping stability of the cables during the test and improving the reliability of the test results.

[0102] The test device of the present invention can adapt to the test requirements of high-speed cables of different specifications through various adjustable structures, such as the diameter-changing function of the spiral variable-diameter wheel 33, the angle-adjusting function of the clamping mechanism 3, and the position-adjusting function of the diameter detection mechanism 6, etc., and has wide applicability and good versatility.

[0103] The above is only the best implementation mode adopted by this application in combination with the current actual needs, but the protection scope of this application is not limited thereto.

Claims

1. A testing device for high-speed cables, characterized in that: The invention comprises a frame (1), the frame (1) being provided with a traction mechanism (2) for providing traction force to both ends of a cable to be tested (4), the traction mechanism (2) comprising two sets of slides (24) arranged opposite to each other, and the tops of the slides (24) are each fixed with a clamping mechanism (3) for clamping the ends of the cable to be tested (4); A diameter detection mechanism (6) is fixed on the frame (1) via an XZ axis linear module (5), the diameter detection mechanism (6) comprising a bracket three (61) fixed on the output end of the XZ axis linear module (5), one side of the bracket three (61) is rotatably connected with a C-shaped open ring (62), the C-shaped open ring (62) is provided with two groups of symmetrically arranged through-slots (623), the through-slots (623) are both slidably connected with a card plate (64), and the card plate (64) is provided with A tensioning slide groove (641) is provided, a connecting column (624) matching with the tensioning slide groove (641) is provided in the slide groove (623), a tensioning spring (625) is clamped between the connecting column (624) and the tensioning slide groove (641), two groups of symmetrically arranged displacement sensors (63) are symmetrically fixed on one side of the outer wall of the C-shaped open ring (62), and a target plate (65) matching with the displacement sensor (63) is fixed on the side away from the two groups of clamping plates (64); The two sets of card plates (64) are each provided with a detection port (642) on one side opposite to the other, and a retractable knife plate (66) is also slidably connected inside the card plate (64); The bracket three (61) is provided with a gear set (611) for driving the C-shaped open ring (62) to rotate.

2. The testing device for a high-speed cable according to claim 1, characterized in that, A knife edge (661) is fixed at one end of the telescopic knife plate (66), the knife edge (661) is arranged on one side of the detection port (642), and a spring sheet (662) is fixed at the other end of the telescopic knife plate (66); The spring sheet (662) has an elastic force for driving the two sets of telescopic blades (66) to move away from each other. When the power is on, the two sets of telescopic blades (66) have a magnetic attraction force for mutual attraction. The tensioning spring (625) has an elastic force for driving the two sets of clamping plates (64) to move closer together. The clamping plates (64) are also provided with an introduction groove (643) on one side close to the opening of the C-shaped opening ring (62).

3. A testing device for a high-speed cable according to claim 1, characterized in that, A C-shaped open slide rail (621) and a C-shaped open external gear (622) are also fixed on the C-shaped open ring (62); a ring-shaped open slide groove (612) matching the C-shaped open slide rail (621) is provided on the bracket (61); the output gear of the gear set (611) is meshed with the C-shaped open external gear (622); and the driving gear of the gear set (611) is driven by a motor.

4. A test device for a high-speed cable according to claim 1, characterized in that, The traction mechanism (2) comprises two groups of brackets (21) symmetrically fixed on the frame (1); two groups of symmetrically arranged double-headed screws (23) are rotatably arranged between the two groups of brackets (21); a nut seat (241) matched with the double-headed screw (23) is fixed on the slide (24); a traction motor (22) is also fixed on one side of the bracket (21); and the output end of the traction motor (22) is transmission-connected to the double-headed screw (23) via a speed reduction mechanism (25).

5. A test device for a high-speed cable according to claim 1, characterized in that, The clamping mechanism (3) includes a second bracket (31) fixed on the sliding table (24). A protective cover (32) is fixed inside the second bracket (31). Two sets of symmetrically arranged deflection seats (35) are provided inside the protective cover (32). A first rotating shaft (351) is fixed on the side of each of the two sets of deflection seats (35) away from each other. A first bearing seat (322) matched with the first rotating shaft (351) is provided on the protective cover (32). A spiral variable-diameter wheel (33) and an auxiliary wheel (34) are respectively rotatably connected between the two sets of deflection seats (35). A driving mechanism is provided on the auxiliary wheel (34). The driving mechanism is used to drive the spiral variable-diameter wheel (33) and the auxiliary wheel (34) to rotate relative to each other, and the driving mechanism is also used to drive the deflection seat (35) to rotate around the axis of the first rotating shaft (351).

6. A test device for a high-speed cable according to claim 5, characterized in that, The driving mechanism includes a driving motor (37) and a main gear (343). A second rotating shaft (341) is fixed at both ends of the auxiliary wheel (34). A second bearing seat (353) corresponding to the second rotating shaft (341) is provided on the deflection seat (35). The driving motor (37) is fixed on one side deflection seat (35). The output end of the driving motor (37) is fixedly connected to the second rotating shaft (341). A spline shaft (3411) is also provided on the second rotating shaft (341). A spline groove (3431) matched with the spline shaft (3411) is provided on the main gear (343). A return spring (342) is fixed between the second rotating shaft (341) and the auxiliary wheel (34). An electromagnetic ring (3432) is fixed on the side of the main gear (343) away from the auxiliary wheel (34). A buffer sliding groove (352) is provided at one end of the deflection seat (35) away from the second bearing seat (353). A buffer slider (36) is slidably connected in the buffer sliding groove (352). A buffer spring (361) is also fixed between the buffer slider (36) and the buffer sliding groove (352). A third rotating shaft (331) is fixed at both ends of the spiral variable-diameter wheel (33). The third rotating shaft (331) is rotatably connected inside the buffer slider (36). A sub-gear (332) meshed with the main gear (343) is also fixed on the third rotating shaft (331). A guide wheel (3311) is also fixed at the end of the third rotating shaft (331). A first guide groove (321) matched with the guide wheel (3311) is provided on the protective cover (32). A second guide groove (323) and an arc-shaped rack (324) are also provided on the side of the protective cover (32) away from the first guide groove (321). The arc-shaped rack (324) is matched with the main gear (343).

7. A test device for a high-speed cable according to claim 6, characterized in that The return spring (342) has a pulling force to drive the main gear (343) to approach the auxiliary wheel (34). In the free state of the return spring (342), the main gear (343) approaches the auxiliary wheel (34) and is separated from the arc-shaped rack (324) and is in a disengaged meshing state. The electromagnetic ring (3432) has a magnetic attraction force on the deflection seat (35) under the condition of being energized. At this time, the main gear (343) moves away from the auxiliary wheel (34) and remains in a meshing state with the arc-shaped rack (324). The buffer spring (361) has an elastic force that drives the buffer slider (36) to move downward and approach the first rotating shaft (351). When the buffer slider (36) displaces to the maximum stroke away from the first rotating shaft (351) within the buffer sliding groove (352), the secondary gear (332) disengages from the main gear (343).

8. A testing device for a high-speed cable according to claim 6, characterized in that, The first guiding groove (321) is a variable-diameter arc-shaped groove structure. The center of the first guiding groove (321) is located on the axis of the first bearing seat (322), and the upper half arc radius thereof is equal to the axial distance between the guide wheel (3311) and the first rotating shaft (351). The lower half arc radius of the first guiding groove (321) gradually decreases, and the maximum difference in change is equal to the maximum stroke of the buffer slider (36) within the deflection seat (35). The center of the second guiding groove (323) is located on the axis of the first bearing seat (322), and the arc radius of the second guiding groove (323) is equal to the axial distance between the second rotating shaft (341) and the first rotating shaft (351).

9. A testing device for a high-speed cable according to claim 5, characterized in that When the two groups of spiral variable-diameter wheels (33) clamp the cable (4), they rotate relative to each other, and the rotation direction is the direction in which the outer diameter increases from small to large. A rubber edge (333) is further provided on the outer side of the spiral variable-diameter wheel (33).

10. A testing device for a high-speed cable according to claim 5, characterized in that, The weight of the auxiliary wheel (34) is greater than that of the spiral variable-diameter wheel (33), and a V-shaped groove (344) is provided inside the auxiliary wheel (34).

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