Cable detection device

Abstract

The invention discloses a cable detection device, and relates to the technical field of cable detection, and the cable detection device comprises a base, a transverse moving assembly, a first detection assembly, a second detection assembly, a third detection assembly and two clamping assemblies. The first detection assembly is used for performing a torsion test on the cable, the second detection assembly and the third detection assembly are linked to perform a bending test on the cable, and the third detection assembly is used for performing a stretching test on the cable. According to the invention, three tests of the cable can be automatically switched; the second detection assembly can adjust the rotation angle of the winding wheel part through the rotation driving part, so that bending of different degrees is generated in the bending test, all positions of the cable can be detected through the arrangement of the transverse moving assembly, the clamping degree of the cable is fed back through the pressure sensing part, stress concentration is avoided, and the accuracy of the detection result is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of cable detection, and in particular to a cable detection device. Background Art

[0002] With the development of social economy, the consumption of cables has increased rapidly, and the quality requirements for cables have been continuously improved. The requirements for cables to withstand mechanical external forces and considerable tension, and to adapt to the external environment are particularly high. Cables need to undergo rigorous performance tests after manufacturing and processing. Only cables with test data that meet the standards can be shipped out of the factory. The testing link is also an important part of cable production, among which the mechanical performance test of cables is a large project. The mechanical performance test is divided into many specific small tests, including torsional performance test, bending performance test, tensile performance test, etc.

[0003] The Chinese patent application number CN202110670590.9 discloses a copper core low-voltage cable performance test system and test method after manufacturing. The invention solves the problem that the test device cannot meet multiple tests by setting a dual-item detection mechanism, a single-item detection mechanism and a joint control mechanism; the cable is pulled by the dual-item detection mechanism to make the cable taut and straightened, and the tensile strength and elongation are determined to understand the tensile performance of the cable; the joint control mechanism drives the mobilization unit to rotate, detects the plastic deformation of the cable under torsion, and determines the torsional performance of the cable; the cable is repeatedly bent by the single-item detection mechanism to detect whether cracks appear on the surface of the cable during the bending process, and determine the bending resistance of the cable; in addition, the invention solves the problem of only being able to fix cables of one diameter by setting a clamping unit.

[0004] In the prior art, when testing the mechanical properties of cables, the detection position is single, and multiple installations can easily cause inaccurate cable positioning. In addition, excessive clamping during installation can easily lead to stress concentration, thereby affecting the accuracy of bending tests, torsion tests, and tensile tests. Summary of the Invention

[0005] The object of the present invention is to provide a cable detection device, which aims to solve the technical problems of low detection efficiency, low detection accuracy and low versatility of existing cable detection devices.

[0006] In order to solve the above technical problems, a cable detection device is provided, comprising a base and:

[0007] a first detection assembly, wherein the first detection assembly drives the cable to rotate along a first rotation center for performing a torsion test on the cable;

[0008] a second detection assembly, the second detection assembly comprising a rotary drive member and a reel member, the rotary drive member being capable of driving the reel member to rotate along a second rotation center so that the reel member can contact the cable and drive the cable to bend for a bending test;

[0009] a third detection assembly, the third detection assembly driving the cable to move axially along the first rotation center to perform a tensile test on the cable and capable of assisting in the rotation of the wheel component to ensure accuracy of the bending test;

[0010] a transverse movement assembly connected to the second detection assembly, so as to move the second detection assembly along the axis of the first rotation center to assist the second detection assembly in completing the bending test;

[0011] Two clamping assemblies are used to fix the cable. A pressure-sensing part is provided inside the clamping assembly, and the clamping assembly adjusts the clamping degree according to the feedback of the pressure-sensing part.

[0012] Furthermore, the first rotation center is coaxial with the cable located in the first detection component, the second rotation center is perpendicular to the first rotation center and coaxial with the rotation axis of the rotating drive component, one of the two clamping components is installed on the base and connected to the first detection component, and the other clamping component is installed on the third detection component.

[0013] Furthermore, the wheel component includes a fixed plate, a first winding and a second winding, the rotating drive component is connected to the fixed plate, the first winding and the second winding are both connected to the fixed plate, and during detection, the cable is located between the first winding and the second winding.

[0014] Furthermore, the second detection component also includes a telescopic motor, which is installed on the transverse movement component and is connected to the rotation driving member to drive the wheel component to move along the axis direction of the second rotation center.

[0015] Furthermore, the clamping assembly also includes a driving telescopic member and a clamping sleeve, the clamping sleeve includes a fixed groove and a sliding groove, the fixed groove and the sliding groove are connected, a clamping member is provided in the sliding groove, the pressure sensing portion is located on the clamping member, and the pressure sensing portion extends into the fixed groove, and the driving telescopic member acts on the clamping member to adjust the degree of clamping of the cable.

[0016] Furthermore, the sliding groove has an inclined surface, and in a direction away from the driving telescopic member, the distance between the inclined surface and the central axis of the clamping sleeve gradually decreases.

[0017] Furthermore, the clamping part also includes a sliding part and a connecting part, the sliding part is arranged in the sliding groove, the sliding part and the pressure sensing part are connected through the connecting part, and the pressure sensing part is arranged on the side away from the driving telescopic part, and a pressure sensor is provided in the pressure sensing part, and a pressure block is provided on the side of the pressure sensor close to the central axis of the clamping sleeve.

[0018] Furthermore, the clamping assembly also includes an elastic member and a push plate, the elastic member is arranged in the sliding groove and abuts between the clamping member and the clamping sleeve, the clamping sleeve also includes an avoidance groove connected to the sliding groove, and the driving telescopic member is connected to the push plate and is slidably arranged in the avoidance groove.

[0019] Furthermore, the first detection component includes a rotating motor, a driving wheel and a driven wheel. The rotating motor is fixedly mounted on a base, the rotating motor is connected to the driving wheel, the driven wheel is coaxially connected to a clamping sleeve located in the first detection component, and the driving wheel and the driven wheel are transmission-connected.

[0020] Furthermore, the third detection component includes a first motor, a first screw rod and a first slider, the first motor is connected to the first screw rod, the first slider is connected to the first screw rod, and the clamping component located in the third detection component is installed on the first slider; the transverse movement component includes a second motor, a second screw rod and a second slider, the second motor is connected to the second screw rod, the second slider is connected to the second screw rod, and the second detection component is installed on the second slider.

[0021] The beneficial effects of the present invention are:

[0022] 1. The present invention improves the accuracy of the test results by setting up the winding wheel component. The second detection component can adjust the rotation angle of the winding wheel component by rotating the driving member, so that different bending angles can be changed during the bending test, which is conducive to further improving the accuracy of the test results.

[0023] 2. The present invention can detect each position of the cable through the cooperation of the transverse movement component and the third detection component. The transverse movement component drives the third detection component to move back and forth along the axis direction of the first rotation center to detect each position of the cable, thereby improving the accuracy of the detection and solving the problem of a single detection position when detecting the cable.

[0024] 3. The present invention ensures the clamping degree of the cable by setting a pressure-sensing part. The pressure-sensing part is provided in the clamping assembly, and the pressure applied to the cable is adjusted in real time. The cable is clamped while avoiding stress concentration, thereby improving the accuracy of detection and solving the problem of stress concentration caused by excessive clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 This is a schematic structural diagram of a cable detection device according to an embodiment of the present invention;

[0027] Figure 2 A top view of a cable detection device according to an embodiment of the present invention;

[0028] Figure 3 This is a schematic structural diagram of the second detection component according to an embodiment of the present invention;

[0029] Figure 4 This is a schematic diagram of the change of the cable when the reel component according to an embodiment of the present invention is in the second position;

[0030] Figure 5 This is a schematic structural diagram of a clamping assembly according to an embodiment of the present invention;

[0031] Figure 6 This is a partial structural diagram of a clamping assembly according to an embodiment of the present invention;

[0032] Figure 7 A cross-sectional view of a portion of a clamping assembly according to an embodiment of the present invention;

[0033] Figure 8 Schematic diagram of the structure of the clamping member according to an embodiment of the present invention.

[0034] Wherein: 100, cable detection device; 110, base; 120, traverse assembly; 121, second motor; 122, second screw rod; 123, second slider; 130, first detection assembly; 131, rotating motor; 132, driving wheel; 133, driven wheel; 140, second detection assembly; 141, rotating drive member; 142, winding wheel member; 1421, fixed plate; 1422, first winding member; 1422A, first limiting groove; 1423, second winding member; 1423A, second limiting groove; 143, telescopic motor; 150, third Detection component; 151, first motor; 152, first screw rod; 153, first slider; 160, clamping component; 161, telescopic driving member; 162, clamping sleeve; 1621, fixing groove; 1622, sliding groove; 1622A, inclined surface; 1623, avoidance groove; 163, clamping member; 1631, sliding part; 1632, connecting part; 1633, pressure-sensing part; 1634, pressure block; 1635, pressure sensor; 164, elastic member; 165, push plate; 170, controller; A, first rotation center; B, second rotation center. DETAILED DESCRIPTION

[0035] To facilitate understanding of the present invention, the present invention will be described more fully below with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the accompanying drawings. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present disclosure.

[0036] Example 1

[0037] To solve the problem of single detection position when testing cables, refer to Figure 1 - Figure 8 An embodiment of the present invention provides a cable testing device 100 for testing the mechanical properties of a cable. The cable testing device 100 includes a base 110, on which are respectively provided a transverse movement assembly 120, a first detection assembly 130, and a third detection assembly 150. The transverse movement assembly 120 is provided with a second detection assembly 140, and each of the first detection assembly 130 and the third detection assembly 150 is provided with a clamping assembly 160 capable of clamping and fixing a cable. The base 110 is provided with multiple connecting plates to enable the above device to be connected to the base 110. One of the two clamping assemblies 160 is mounted on the base 110 and connected to the first detection assembly 130, and the other clamping assembly 160 is mounted on the third detection assembly 150.

[0038] In this embodiment, the first detection component 130 includes the rotating motor 131, the driving wheel 132 and the driven wheel 133. The rotating motor 131 is fixedly mounted on the base 110. The output end of the rotating motor 131 is provided with a driving wheel 132. The driving wheel 132 and the driven wheel 133 are transmission-connected. The driven wheel 133 is coaxially connected to the clamping sleeve 162 located in the first detection component 130. Exemplarily, the driving wheel 132 and the driven wheel 133 are engaged with each other.

[0039] In this embodiment, the first detection component 130 can drive the cable to rotate along the first rotation center A for performing a torsion test on the cable. It should be noted that the first rotation center A is coaxial with the cable located in the first detection component 130.

[0040] In this embodiment, the third detection component 150 includes a first motor 151, a first screw rod 152 and a first slider 153. The first motor 151 is fixedly mounted on the base 110. The output end of the first motor 151 is provided with a first screw rod 152. The first slider 153 is slidingly connected to the first screw rod 152. The clamping component 160 located in the third detection component 150 is mounted on the first slider 153. Exemplarily, the third detection component 150 is a ball screw module.

[0041] The third detection component 150 drives the cable to move axially along the first rotation center A for performing tensile testing on the cable, and can assist when the wheel component 142 rotates to ensure the accuracy of the bending test. When the third detection component 150 assists the second detection component 140 to complete the bending test, the third detection component 150 moves axially along the first rotation center A by a corresponding distance according to the different rotation angles of the wheel component 142.

[0042] In this embodiment, one of the two clamping assemblies 160 is installed on the base 110 and connected to the first detection assembly 130 , and the other clamping assembly 160 is installed on the third detection assembly 150 .

[0043] The two clamping assemblies 160 respectively secure the two ends of the cable to be tested. It should be noted that one clamping assembly 160 is used in conjunction with the first detection assembly 130, and the other clamping assembly 160 is used in conjunction with the third detection assembly 150. The first detection assembly 130 drives one clamping assembly 160 to rotate to complete the torsion test, while the third detection assembly 150 drives the other clamping assembly 160 to move to coordinate the tensile test and the bending test. In other words, the first detection assembly 130, the second detection assembly 140, and the third detection assembly 150 complement each other during testing, rather than operating independently.

[0044] The clamping assembly 160 includes a driving telescopic member 161 and a clamping sleeve 162, the clamping sleeve 162 includes a fixed groove 1621 and a sliding groove 1622, the fixed groove 1621 and the sliding groove 1622 are connected, a clamping member 163 is provided in the sliding groove 1622, and the sliding groove 1622 has an inclined surface 1622A. In the direction away from the driving telescopic member 161, the distance between the inclined surface 1622A and the central axis of the clamping sleeve 162 gradually decreases.

[0045] For example, eight sliding grooves 1622 may be provided, and the eight sliding grooves 1622 are circumferentially arranged around the fixed groove 1621. Correspondingly, eight clamping members 163 are also provided, with one clamping member 163 disposed in each sliding groove 1622. Of course, in a specific application, the number of sliding grooves 1622 and clamping members 163 is not limited to this. For example, as an alternative, the number of sliding grooves 1622 and clamping members 163 may also be set to 5, 6, or 10, and no further restrictions are imposed herein.

[0046] It should be noted that the fixed groove 1621 is used to allow the cable to pass through, and the driving telescopic member 161 is used to push the clamping member 163 to move within the sliding groove 1622. During the movement of the clamping member 163, under the action of the inclined surface 1622A, the multiple clamping members 163 gradually move closer together, causing the pressure of the clamping members 163 on the cable to gradually increase, thereby allowing the clamping members 163 to secure the cable. During use, the cable is placed in the fixed groove 1621, and the driving telescopic member 161 pushes the clamping member 163 to move within the sliding groove 1622. During the movement, the clamping member 163 moves along the inclined surface 1622A, gradually approaching the cable and pressing it tightly, thereby securing the cable.

[0047] When performing a torsion test on the cable, the two clamping assemblies 160 clamp the cable and put the cable in a taut state. The clamping assembly 160 clamps the cable through the clamping member 163. The third detection assembly 150 ensures that the clamping assembly 160 installed thereon is fixed, thereby ensuring the fixation of one end of the cable. The clamping assembly 160 installed on the first detection assembly 130 clamps the other end of the cable. The rotating motor 131 of the first detection assembly 130 drives the active wheel 132 to rotate, thereby driving the driven wheel 133 and the clamping assembly 160 connected thereto to rotate, driving this end of the cable to twist, thereby performing a torsion test on the cable.

[0048] When performing a tensile test on the cable, the two clamping assemblies 160 clamp the cable and put the cable in a tensioned state. The first detection assembly 130 ensures that the clamping assembly 160 installed thereon is fixed, thereby ensuring the fixation of one end of the cable. The clamping assembly 160 installed on the third detection assembly 150 clamps the other end of the cable. The first motor 151 in the third detection assembly 150 is started, driving the first screw rod 152 to rotate, thereby causing the first slider 153 to move along the axis of the first rotation center A in a direction away from the first detection assembly 130, thereby performing a tensile test on the cable.

[0049] The traverse assembly 120 is connected to the second detection assembly 140, causing the second detection assembly 140 to move along the axis of the first rotation center A, thereby assisting the second detection assembly 140 in completing the bending test. The traverse assembly 120 includes a second motor 121, a second screw rod 122, and a second slider 123. The second motor 121 is connected to the second screw rod 122, and the second slider 123 is connected to the second screw rod 122. The second detection assembly 140 is mounted on the second slider 123. During the bending test, the second detection assembly 140 is required to reciprocate along the axis of the first rotation center A to complete the bending test.

[0050] In this embodiment, the second detection component 140 includes a rotating drive member 141 and a wheel component 142. The output shaft of the rotating drive member 141 is connected to the wheel component 142. The rotating drive member 141 can drive the wheel component 142 to rotate along the second rotation center B, so that the wheel component 142 can contact the cable and drive the cable to bend for a bending test. The rotating drive member 141 and the wheel component 142 are detachably connected, that is, the user can replace the wheel component 142 with different diameters, so that the cable can bend with different curvature radii, thereby being able to adapt to different types of cables and improve the versatility of the cable detection device 100.

[0051] It should be noted that the second rotation center B is perpendicular to the first rotation center A and coaxial with the rotation axis of the rotation drive member 141. The axial direction of the first rotation center A is the X-axis direction, and the axial direction of the second rotation center B is the Y-axis direction.

[0052] The second detection component 140 further includes a telescopic motor 143 , which is mounted on the transverse movement component 120 . The telescopic motor 143 is connected to the rotation driving member 141 to drive the wheel component 142 to move along the axis of the second rotation center B.

[0053] It should be noted that when performing a bending test on the cable, the telescopic motor 143 first moves the rotating drive member 141 and the wheel component 142 away from the telescopic motor 143 to ensure that the wheel component 142 can bend the cable. After the bending test of the cable is completed, the telescopic motor 143 moves the rotating drive member 141 and the wheel component 142 toward the direction close to the telescopic motor 143 to ensure that the wheel component 142 does not interfere with other tests.

[0054] In this embodiment, the wheel component 142 includes a fixed plate 1421, a first winding member 1422 and a second winding member 1423. The rotating driving member 141 is connected to the fixed plate 1421. The first winding member 1422 and the second winding member 1423 are both connected to the fixed plate 1421, and during detection, the cable is located between the first winding member 1422 and the second winding member 1423.

[0055] In this embodiment, the wheel component 142 includes a fixed plate 1421, a first winding member 1422 and a second winding member 1423. The rotating driving member 141 is connected to the fixed plate 1421. The first winding member 1422 and the second winding member 1423 are both connected to the fixed plate 1421, and during detection, the cable is located between the first winding member 1422 and the second winding member 1423.

[0056] For example, the first winding member 1422 includes a first limiting groove 1422A, and the second winding member 1423 includes a second limiting groove 1423A. During the bending test, the cable is limited by the cooperation of the first limiting groove 1422A and the second limiting groove 1423A to prevent the cable from falling out of the reel member 142. During the bending test, the cable contacts the reel member 142. After the bending test, the cable and the reel member 142 are no longer in contact, which facilitates the reel member 142 to be kept away from the cable.

[0057] It should be noted that if Figure 3 As shown, when the center line connecting the first winding element 1422 and the second winding element 1423 is perpendicular to the axis of the cable, the state of the wheel component 142 relative to the rotary drive component 141 is the first position, and the state of the wheel component 142 rotating no more than 240° from the first position along the second rotation center B is the second position. Figure 4 The figure shown is a schematic diagram of the state of the winding wheel component 142 in the second position, at which time the cable is in a bent state. For example, the process of adjusting the bending degree of the cable by rotating the driving component 141 is as follows:

[0058] First, the initial state is set: before starting the bending test, the wheel component 142 is in the initial first position. At this time, the cable is in a straight state and is fixed on the base 110 by the clamping assembly 160.

[0059] Second, the rotary drive 141 is activated: When a bend test is required, the rotary drive 141 is activated and rotates the wheel 142 from the first position to the second position according to the preset bending angle requirement. The second position can be set according to the cable type and test requirements.

[0060] Third, the sheave assembly 142 rotates: Driven by the rotary drive element 141, the sheave assembly 142 begins to rotate about the second rotation center B. The relative position between the first winding element 1422 and the second winding element 1423 changes, causing the cable to bend under the action of the sheave assembly 142. The greater the rotation angle of the sheave assembly 142, the greater the bending angle of the cable.

[0061] Fourth, bending angle control: During the rotation process, the rotary driving member 141 ensures that the rotation angle of the wheel component 142 meets the preset value through a precise control algorithm.

[0062] The beneficial effects are as follows:

[0063] First, it improves testing accuracy: By precisely controlling the rotation angle of the winding wheel assembly 142, the cable's bending angle can be precisely controlled. This precise control ensures consistent conditions for each bending test, thereby improving the accuracy and repeatability of test results. Different bending angles can be set for different cable types based on their characteristics, allowing for more accurate assessment of their bending performance.

[0064] Second, it offers strong adaptability: Because the rotation angle of the reel assembly 142 can be adjusted within a wide range, the device can adapt to testing cables with varying bending requirements. Whether cables require a narrow or wide bend angle, both can be achieved by adjusting the rotation angle of the rotary drive 141, thus enhancing the device's applicability and flexibility.

[0065] When the cable is subjected to a bending test, the two clamping assemblies 160 clamp the cable, the first detection assembly 130 ensures that the clamping assembly 160 installed thereon is fixed, thereby ensuring that one end of the cable is fixed, and the clamping assembly 160 installed on the third detection assembly 150 clamps the other end of the cable, and the telescopic motor 143 in the second detection assembly 140 drives the winding wheel component 142 and the rotating drive member 141 to move in a direction away from the telescopic motor 143, ensuring that the cable is located between the first winding member 1422 and the second winding member 1423, and then the rotating drive member 141 drives the winding wheel component 142 ... The wheel component 142 rotates to the specified position, and at the same time, the first motor 151 in the third detection component 150 rotates, driving the first slider 153 to move, driving the clamping component 160 thereon to move along the axis of the first rotation center A toward the direction close to the first detection component 130, thereby driving this end of the cable to move. This process is controlled by the program to ensure that the cable will never fall off the wheel component 142. After that, the second slider 123 on the transverse movement component 120 carries the second detection component 140 to reciprocate along the axis of the first rotation center A to perform bending tests on various parts of the cable.

[0066] After completing the bending test of the cable, the rotating drive member 141 and the first motor 151 work simultaneously to reset the winding wheel component 142 and the clamping component 160 on the third detection component 150, and then the telescopic motor 143 moves the rotating drive member 141 and the winding wheel component 142 in the direction close to the telescopic motor 143, ending the bending test of the cable.

[0067] When testing the cable, the three tests are automatically switched without human intervention; and during the entire testing process, the cable is fixed on the clamping assembly 160, without the need to remove the cable, and the clamping assembly 160 changes the pressure on the cable at any time, which is beneficial to improving the accuracy of positioning and the efficiency and accuracy of testing. In addition, the second detection assembly 140 can adjust the rotation angle of the wheel component 142 by rotating the driving member 141, so that different bending angles can be changed during the bending test, which is beneficial to further improve the accuracy of the test results.

[0068] During use, when performing a torsion test, the cable is in a tensioned state, the third detection component 150 ensures that one end of the cable is fixed, and the first detection component 130 drives the clamping component 160 connected thereto to rotate, driving this end of the cable to twist, thereby performing a torsion test on the cable. After the torsion test is completed, the first detection component 130 drives the clamping component 160 connected thereto to rotate, so that the cable returns to a tensioned state.

[0069] During the bending test, the cable is in a tensioned state. The first detection component 130 ensures that one end of the cable is fixed. The telescopic motor 143 in the second detection component 140 drives the reel component 142 and the rotary drive component 141 to move away from the telescopic motor 143, ensuring that the cable is located between the first winding component 1422 and the second winding component 1423. Then, the rotary drive component 141 drives the reel component 142 to rotate to a specified position. At the same time, the first motor 151 in the third detection component 150 rotates, driving the first slider 153 to move, driving this end of the cable to move. Then, the transverse movement component 120 drives the second detection component 140 to reciprocate along the axis direction of the first rotation center A, performing bending tests on various parts of the cable. After the bending test is completed, the rotary drive component 141 and the first motor 151 work simultaneously to reset the reel component 142 and the clamping component 160 on the third detection component 150. Then, the telescopic motor 143 is reset, and the cable returns to a tensioned state.

[0070] When performing a tensile test, the two clamping assemblies 160 clamp the cable, the first detection assembly 130 ensures that one end of the cable is fixed, and the third detection assembly 150 moves the other end of the cable along the axis of the first rotation center A away from the first detection assembly 130, thereby performing a tensile test on the cable. After the tensile test is completed, the third detection assembly 150 is reset.

[0071] Finally, it should be noted that there are two test orders: the first is to perform bending test, torsion test and tensile test in sequence, and the second is to perform torsion test, bending test and tensile test in sequence. In other words, bending test and torsion test can be interchanged, and tensile test is placed last.

[0072] Second embodiment

[0073] However, operators found that when testing cables using the above-mentioned device, multiple installations could easily lead to inaccurate cable positioning, and excessive clamping during installation could easily cause stress concentration, thereby affecting the accuracy of bending tests, torsion tests, and tensile tests.

[0074] Based on the above problem, in this embodiment, the device further includes:

[0075] In this embodiment, two clamping assemblies 160 are used to fix the cable. A pressure-sensing portion 1633 is provided in the clamping assembly 160. The clamping assembly 160 adjusts the clamping degree according to the feedback of the pressure-sensing portion 1633. The pressure-sensing portion 1633 is located on the clamping member 163, and the pressure-sensing portion 1633 extends into the fixing groove 1621. The driving telescopic member 161 acts on the clamping member 163 to adjust the clamping degree of the cable.

[0076] The clamping degree of the clamping assembly 160 is controlled by a program. The pressure sensing part 1633 feeds back the sensed pressure changes to the controller 170, and the controller 170 controls the clamping degree of the clamping assembly 160. When the pressure data is greater than the set value, the clamping degree of the clamping assembly 160 is reduced. When the pressure data is less than the set value, the clamping degree of the clamping assembly 160 is increased. The clamping degree of the clamping assembly 160 can change in real time, and can clamp the cable without causing stress concentration problems.

[0077] The clamping member 163 also includes a sliding portion 1631 and a connecting portion 1632. The sliding portion 1631 is arranged in the sliding groove 1622. The sliding portion 1631 and the pressure-sensing portion 1633 are connected through the connecting portion 1632, and the pressure-sensing portion 1633 is arranged on the side away from the driving telescopic member 161. A pressure sensor 1635 is provided in the pressure-sensing portion 1633. A pressure block 1634 is provided on the side of the pressure sensor 1635 close to the central axis of the clamping sleeve 162. The pressure block 1634 contacts the cable and applies pressure to the cable.

[0078] For example, the sliding and connecting portion 1632 is T-shaped to prevent the sliding portion 1631 from disengaging from the sliding groove 1622. The contact surface of the pressing block 1634 with the cable is arc-shaped, which not only helps protect the cable and reduce cable wear, but also helps the clamping member 163 to act on the cable through the contact surface even when it is tilted.

[0079] It should be noted that multiple pressure sensors 1635 are connected to the controller 170 through wires. The pressure sensors 1635 are connected to an external 24V power supply. The pressure sensors 1635 input signals into the controller 170, and the controller 170 controls the clamping degree of the clamping assembly 160. Of course, in specific applications, wireless pressure sensors can also be used. The pressure sensors 1635 have their own power supply, and data is transmitted between the pressure sensors 1635 and the controller 170 via Wi-Fi, Bluetooth or ZigBee. Wireless pressure sensors are more convenient to install and maintain.

[0080] In this embodiment, the clamping assembly 160 also includes an elastic member 164 and a push plate 165. The elastic member 164 is arranged in the sliding groove 1622 and abuts between the clamping member 163 and the clamping sleeve 162. The clamping sleeve 162 also includes an avoidance groove 1623 connected to the sliding groove 1622. The driving telescopic member 161 is connected to the push plate 165 and is slidably arranged in the avoidance groove 1623.

[0081] Illustratively, the elastic member 164 is a compression spring. When the telescopic member 161 is driven to apply an external force to the clamping member 163, the elastic member 164 is compressed. When the telescopic member 161 removes the external force applied to the clamping member 163, the clamping member 163 returns to its original position under the action of the elastic member 164, allowing the cable to be removed. The telescopic member 161 acts on the clamping member 163 by driving the push plate 165.

[0082] It should be noted that after the cable is placed in the fixed groove 1621, the telescopic member 161 is driven to move the push plate 165, and the push plate 165 applies external force to the clamping member 163, so that the multiple clamping members 163 gradually move closer to the cable due to the inclined surface 1622A. When the pressure block 1634 on the clamping member 163 contacts the cable, the pressure sensor 1635 transmits the pressure data to the controller 170. After analyzing the data, the controller 170 sends the control signal to the driving telescopic member 161, thereby controlling the pressure of the clamping member 163 on the cable by controlling the driving telescopic member 161.

[0083] During cable testing, when the cable slides relative to the clamping assembly 160, the pressure exerted by the pressure block 1634 on the cable changes. The pressure sensor 1635 inputs the pressure change data into the controller 170. Based on the pressure data, the controller 170 controls the movement of the telescopic drive member 161, moving the push plate 165 away from the telescopic drive member 161. This increases the pressure exerted by the clamping member 163 on the cable, preventing the cable from sliding and thus affecting the test results. In short, the degree of clamping applied by the clamping assembly 160 varies during the process of clamping the cable, ensuring that the cable is clamped without exerting excessive pressure on the cable, thus avoiding stress concentration on the cable at the pressure block 1634 and ensuring the accuracy of the test.

[0084] The above embodiments merely illustrate several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A cable detection device, comprising a base, characterized in that: Also includes: a first detection assembly capable of driving the cable to rotate along a first rotation center for performing a torsion test on the cable; a second detection assembly comprising a rotary drive member and a reel member, wherein the rotary drive member is capable of driving the reel member to rotate along a second rotation center so that the reel member can contact the cable and drive the cable to bend for a bending test; a third detection assembly, which drives the cable to move axially along the first rotation center to perform a tensile test on the cable and is capable of assisting in the rotation of the wheel component to ensure the accuracy of the bending test; a transverse movement assembly connected to the second detection assembly, so as to move the second detection assembly along the axis of the first rotation center to assist the second detection assembly in completing the bending test; Two clamping assemblies are used to fix the cables. A pressure-sensing part is provided inside the clamping assembly, and the clamping assembly adjusts the clamping degree according to the feedback of the pressure-sensing part.

2. The cable detection device according to claim 1, characterized in that: The first rotation center is coaxial with the cable located in the first detection component, the second rotation center is perpendicular to the first rotation center and coaxial with the rotation axis of the rotating drive component, one of the two clamping components is installed on the base and connected to the first detection component, and the other clamping component is installed on the third detection component.

3. The cable detection device according to claim 1, characterized in that: The reel component includes a fixed plate, a first winding member and a second winding member. The rotary drive member is connected to the fixed plate. The first winding member and the second winding member are both connected to the fixed plate. During detection, the cable is located between the first winding member and the second winding member.

4. The cable detection device according to claim 3, characterized in that: The second detection component also includes a telescopic motor, which is installed on the transverse movement component and is connected to the rotation driving member to drive the wheel component to move along the axis direction of the second rotation center.

5. The cable detection device according to claim 2, characterized in that: The clamping assembly also includes a driving telescopic member and a clamping sleeve, the clamping sleeve includes a fixed groove and a sliding groove, the fixed groove and the sliding groove are connected, a clamping member is provided in the sliding groove, the pressure sensing portion is located on the clamping member, and the pressure sensing portion extends into the fixed groove, the driving telescopic member acts on the clamping member to adjust the degree of clamping of the cable.

6. The cable detection device according to claim 5, characterized in that: The sliding groove has an inclined surface, and in a direction away from the driving telescopic member, the distance between the inclined surface and the central axis of the clamping sleeve gradually decreases.

7. The cable detection device according to claim 6, characterized in that: The clamping part also includes a sliding part and a connecting part. The sliding part is arranged in the sliding groove. The sliding part and the pressure-sensing part are connected through the connecting part. The pressure-sensing part is arranged on the side away from the driving telescopic part. A pressure sensor is provided in the pressure-sensing part. A pressure block is provided on the side of the pressure sensor close to the central axis of the clamping sleeve.

8. The cable detection device according to claim 5, characterized in that: The clamping assembly also includes an elastic member and a push plate. The elastic member is arranged in the sliding groove and abuts between the clamping member and the clamping sleeve. The clamping sleeve also includes an avoidance groove connected to the sliding groove. The driving telescopic member is connected to the push plate and is slidably arranged in the avoidance groove.

9. The cable detection device according to claim 5, characterized in that: The first detection component includes a rotating motor, a driving wheel and a driven wheel. The rotating motor is fixedly mounted on a base, connected to the driving wheel, and the driven wheel is coaxially connected to a clamping sleeve located in the first detection component. The driving wheel and the driven wheel are in transmission connection.

10. The cable detection device according to claim 2, characterized in that: The third detection assembly includes a first motor, a first screw rod and a first slider, the first motor is connected to the first screw rod, the first slider is connected to the first screw rod, and the clamping assembly located in the third detection assembly is installed on the first slider; The transverse movement assembly includes a second motor, a second screw rod and a second slider. The second motor is connected to the second screw rod, the second slider is connected to the second screw rod, and the second detection assembly is installed on the second slider.

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