Cable wrinkle detection device and detection method

Abstract

The invention provides a cable wrinkle detection device and a detection method. The cable wrinkle detection device comprises a detection device (1) and a clamping assembly, the clamping assembly can clamp a cable, the detection device (1) is arranged on the clamping assembly, the clamping assembly can move circumferentially around the cable, the detection direction of the detection device (1) is always perpendicular to the bending surface of the cable, and the detection device (1) can detect the wrinkle depth of the bending surface. The cable wrinkle detection device and detection method provided by the invention can solve the problem that the detection precision of the existing cable wrinkle detection device is relatively limited.

Description

Technical Field

[0001] This invention relates to the field of cable testing technology, and more specifically, to a cable wrinkle detection device and method. Background Technology

[0002] During cable laying and use, especially for high-voltage cables such as 500kV and above smooth aluminum-sheathed cables, because the aluminum sheath surface is not corrugated, the aluminum sheath on the inner bend side is prone to developing tiny wrinkles due to plastic deformation of the material during bending processes such as coiling and laying. These wrinkles may seem insignificant, but when their depth exceeds 0.3mm, they will significantly affect the electric field distribution of the cable, leading to electric field distortion, which in turn can cause partial discharge, potentially resulting in the failure of the cable insulation layer or even cable breakdown, seriously affecting the safe and stable operation of the power system.

[0003] Currently, the detection of cable wrinkles mainly relies on manual visual inspection and specific testing equipment. While manual visual inspection is intuitive, its accuracy is very limited and highly subjective, making it difficult to quantify and unsuitable for the precision testing requirements of high-voltage cables. Existing testing equipment, such as fiber optic strain-based testing systems and image recognition detection solutions, can provide quantifiable testing data for precise cable wrinkle detection. However, because they primarily rely on changes in light signals or images acquired from light signals to obtain testing data, different testing angles can cause light deviations or image distortions. Therefore, the detection accuracy is affected by the testing angle, and their measurement precision remains relatively limited. Summary of the Invention

[0004] The main objective of this invention is to provide a cable wrinkle detection device and method that can solve the problem of limited detection accuracy of existing cable wrinkle detection devices.

[0005] To achieve the above objectives, according to one aspect of the present invention, a cable wrinkle detection device is provided, comprising a detection device and a clamping assembly, the clamping assembly being capable of clamping a cable, the detection device being disposed on the clamping assembly, the clamping assembly being capable of moving around the circumference of the cable, the detection direction of the detection device always being perpendicular to the bending surface of the cable, and the detection device being capable of detecting the wrinkle depth of the bending surface.

[0006] Furthermore, the clamping assembly includes a clamping section, on which a slider is provided, the slider being able to slide along the clamping section, a detection device being provided on the slider, and a vision component being provided on the detection device, the vision component being able to identify the bent surface of the cable.

[0007] Furthermore, the slider is provided with a first roller and a first driving unit. The first roller can contact the cable surface and clamp the cable, and the first driving unit can drive the first roller to roll along the cable axis.

[0008] Furthermore, the slider is also provided with a rotating assembly, which includes a second roller and a second driving part. The second roller can contact the surface of the cable, and the second driving part can drive the second roller to rotate so as to drive the clamping assembly to rotate circumferentially along the cable.

[0009] Furthermore, the clamping section includes a first clamping section, and a second clamping section and a third clamping section that are slidably disposed on the first clamping section. The first clamping section, the second clamping section and the third clamping section form a C-shaped structure, and the space inside the C-shaped structure is the clamping space.

[0010] Furthermore, the clamping section also includes a fourth clamping section. One end of the fourth clamping section is slidably disposed on the second clamping section, and the other end is slidably disposed on the third clamping section. The fourth clamping section, together with the first clamping section, the second clamping section, and the third clamping section, forms a rectangular structure, and the inner side of the rectangular structure is the clamping space.

[0011] According to another aspect of the present invention, a cable wrinkle detection method is also provided, which employs the above-described cable wrinkle detection device. The detection method includes: controlling a clamping assembly to clamp a cable; adjusting the clamping assembly to rotate around the cable; and adjusting the detection device so that the detection direction of the detection device is always perpendicular to the bending surface of the cable.

[0012] Furthermore, the steps of controlling the clamping assembly to clamp the cable include: adjusting the slider to align the first roller with the cable; controlling the second clamping section and the third clamping section to move into the clamping space to clamp the cable; and controlling the sliders on the second clamping section and the third clamping section to move relative to the first clamping section so that the first clamping section, the second clamping section and the third clamping section jointly clamp the cable.

[0013] Furthermore, the step of adjusting the clamping assembly to rotate around the cable includes: controlling the second drive unit to start so that the clamping assembly rotates around the cable; acquiring an image of the cable surface; identifying the bending surface of the cable, at which point the detection device is in a position where the detection laser is perpendicular to the bending surface; and controlling the second drive unit to stop.

[0014] Furthermore, after the step of stopping the second drive unit, the step of adjusting the clamping assembly to rotate around the cable also includes: after a preset time interval, or after the detection device has moved a preset distance along the circumference of the cable, returning to the step of starting the second drive unit to make the clamping assembly rotate around the cable.

[0015] Furthermore, the detection method also includes: inputting a cable fold depth threshold; acquiring bending surface data and sending it to a host computer; activating the first drive unit to move the clamping assembly along the cable axis; calculating the cable fold depth based on the bending surface data; comparing the cable fold depth with the cable fold depth threshold; when the cable fold depth is less than or equal to the cable fold depth threshold, returning to the step of acquiring bending surface data and sending it to the host computer; when the cable fold depth is greater than the cable fold depth threshold, activating an alarm and recording alarm point details; and returning to the step of acquiring bending surface data and sending it to the host computer.

[0016] By employing the technical solution of this invention, a detection device such as a laser displacement sensor can accurately measure the wrinkles caused by minute deformations on the cable surface. The clamping assembly can hold the cable and also provides a reliable mounting base for the detection device, ensuring that the detection device is in a stable position to detect the surface condition of the cable, especially the wrinkles on the bending surface. The clamping assembly can move around the circumference of the cable, thereby adjusting the detection direction of the detection device. Even if the position of the bending surface of the cable changes, the clamping assembly can drive the detection device to adjust to a suitable position, ensuring that the detection direction of the detection device is always perpendicular to the bending surface of the cable, detecting the wrinkle depth from directly above the wrinkle. This minimizes the impact of the detection angle on the detection accuracy, thereby significantly improving the detection accuracy of the detection device. Attached Figure Description

[0017] The accompanying drawings, which form part of this specification, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0018] Figure 1 A front view of the cable wrinkle detection device of the present invention is shown.

[0019] The above figures include the following reference numerals:

[0020] 1. Detection device; 11. Vision component; 211. First clamping section; 212. Second clamping section; 213. Third clamping section; 214. Fourth clamping section; 215. Clamping space; 22. Slider; 221. First roller; 222. First drive unit; 31. Second roller; 4. Host computer. Detailed Implementation

[0021] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0022] See also Figure 1As shown, the present invention provides a cable wrinkle detection device, including a detection device 1 and a clamping assembly. The clamping assembly can clamp the cable, the detection device 1 is disposed on the clamping assembly, the clamping assembly can move around the circumference of the cable, the detection direction of the detection device 1 is always perpendicular to the bending surface of the cable, and the detection device 1 can detect the wrinkle depth of the bending surface.

[0023] In the above technical solution, a detection device 1, such as a laser displacement sensor, can accurately measure the wrinkles caused by minute deformations on the cable surface. The clamping assembly can hold the cable and also provides a reliable mounting base for the detection device 1, ensuring that the detection device 1 is in a stable position to detect the surface condition of the cable, especially the wrinkles on the bending surface. The clamping assembly can move around the circumference of the cable, thereby adjusting the detection direction of the detection device 1. Even if the position of the bending surface of the cable changes, the clamping assembly can still move the detection device 1 to a suitable position, ensuring that the detection direction of the detection device 1 is always perpendicular to the bending surface of the cable, detecting the wrinkle depth from directly above the wrinkle, thereby minimizing the impact of the detection angle on the detection accuracy and significantly improving the detection accuracy of the detection device.

[0024] In one embodiment of the present invention, the clamping assembly includes a clamping section, on which a slider 22 is provided, the slider 22 being able to slide along the clamping section, a detection device 1 being provided on the slider 22, and a vision component 11 being provided on the detection device 1, the vision component 11 being able to identify the bent surface of the cable.

[0025] In the above technical solution, the clamping section provides the mounting base for the slider 22 and guides the sliding of the slider 22. Multiple clamping sections together constitute a clamping assembly to stably clamp the cable from multiple angles. The slider 22 can slide along the clamping section, thereby driving the detection device 1, vision component 11, and rollers on the slider 22 to adjust their relative positions with the cable, ensuring that each component can reach its respective target position to cooperate in completing high-precision wrinkle detection of the cable. The vision component 11 is used to identify the bending surface of the cable. Through intelligent image recognition technology, it can quickly locate the bending area of ​​the cable, guide the slider 22 and the detection device 1 on it to perform precise alignment, and ensure that the detection direction of the detection device 1 is always perpendicular to the bending surface, thereby improving the wrinkle detection accuracy.

[0026] In one embodiment of the present invention, the slider 22 is provided with a first roller 221 and a first driving part 222. The first roller 221 can contact the cable surface and clamp the cable, and the first driving part 222 can drive the first roller 221 to roll along the cable axis.

[0027] In the above technical solution, the first roller 221 is in direct contact with the cable surface. Through the cooperation between the first rollers 221 on multiple clamping sections, the cable is stably clamped. For example, the first drive unit 222, such as the servo motor, is set on the slider 22 and can drive the first roller 221 to roll along the cable axis, thereby driving the clamping assembly to move along the cable axis, so that the wrinkle detection device can move autonomously along the cable and detect the wrinkles on the bending surface of the cable.

[0028] In one embodiment of the present invention, the slider 22 is further provided with a rotating assembly, which includes a second roller 31 and a second driving part. The second roller 31 can contact the surface of the cable, and the second driving part can drive the second roller 31 to rotate so as to drive the clamping assembly to rotate circumferentially along the cable.

[0029] In the above technical solution, the second drive unit typically includes a drive device such as a servo motor, which provides power for the rotation of the second roller 31 and actively controls the rotation of the second roller 31. The second roller 31 directly contacts the cable surface. The second drive unit and the second roller 31 cooperate to drive the clamping assembly to rotate along the circumference of the cable, so that the vision component 11 can detect and locate the bending wrinkles on the cable surface along the circumference. It can also adjust the detection direction of the detection device 1 to ensure that the detection beam of the detection device 1, such as a laser displacement sensor, is always perpendicular to the bending surface of the cable, and detects the wrinkle depth from directly above the wrinkle, thereby minimizing the impact of the detection angle on the detection accuracy and significantly improving the detection accuracy of the detection device.

[0030] In one embodiment of the present invention, the clamping segment includes a first clamping segment 211, and a second clamping segment 212 and a third clamping segment 213 slidably disposed on the first clamping segment 211. The first clamping segment 211, the second clamping segment 212 and the third clamping segment 213 form a C-shaped structure, and the inner space of the C-shaped structure is a clamping space 215.

[0031] In the above technical solution, the first clamping section 211 forms part of the C-shaped structure and is also the foundation of the entire clamping assembly. The first clamping section 211 supports the second clamping section 212 and the third clamping section 213, ensuring the structural stability and strength of the entire clamping assembly. The second clamping section 212 and the third clamping section 213 can slide on the first clamping section 211. By adjusting the positions of the second clamping section 212 and the third clamping section 213, the clamping space within the formed C-shaped structure can be changed, thus accommodating cables of different diameters. This ensures that regardless of the cable diameter, the detection device can stably attach to the cable surface for accurate detection. The C-shaped structure formed by the first clamping section 211, the second clamping section 212, and the third clamping section 213 is primarily based on its ability to evenly distribute pressure when clamping the cable, ensuring that the cable will not undergo unnecessary deformation or damage under the action of the clamping assembly during detection. Simultaneously, the C-shaped structure naturally adapts to the cylindrical shape of the cable, providing stable support and guidance for other components on the clamping assembly, improving the stability and accuracy of the detection work.

[0032] In one embodiment of the present invention, the clamping segment further includes a fourth clamping segment 214, one end of which is slidably disposed on the second clamping segment 212, and the other end is slidably disposed on the third clamping segment 213. The fourth clamping segment 214, together with the first clamping segment 211, the second clamping segment 212 and the third clamping segment 213, forms a rectangular structure, and the inner side of the rectangular structure is a clamping space 215.

[0033] In the above technical solution, the fourth clamping section 214 can slide along the second clamping section 212 and the third clamping section 213. The fourth clamping section 214 can adjust the size of the clamping space relative to the first clamping section 211 and cooperate with the first clamping section 211 to achieve clamping and limiting of the cable. On the one hand, the addition of the fourth clamping section 214 makes the clamping assembly form a complete rectangular frame, significantly increasing the overall mechanical strength and structural stability, and improving the reliability of clamping the cable. On the other hand, it increases the contact area between the clamping assembly and the cable, making the distribution of clamping force more uniform and reducing the possibility of cable deformation due to clamping.

[0034] In one embodiment of the present invention, the detection device 1 includes a laser displacement sensor, which is the core detection element. As a non-contact detection sensor, it is responsible for scanning the contour of the folds on the inner bend surface of the cable, avoiding physical contact with the cable surface and causing no damage or interference to the cable. It is particularly suitable for the fine detection of high-voltage cables. The main parameters of the laser displacement sensor include: detection range ±15mm, repeatability of 0.05mm, and the ability to output high-precision fold height data in real time via an RS-485 interface (Modbus-RTU protocol).

[0035] In one embodiment of the present invention, the host computer 4 includes a Cortex-A7 800MHz processor and an intelligent touchscreen recorder running MCGSPro configuration software. Its main functions are to wirelessly receive and process laser sensor data, display the micron-level contour curve of the cable surface in real time, calculate and display key statistical indicators of wrinkles such as maximum depth, average depth, and excess area, set and store wrinkle depth alarm thresholds, automatically trigger an audible and visual alarm when the detected wrinkle depth exceeds the threshold, record and store detection data including location information, time, contour data, and alarm records, and export data for report generation or uploading to a digital operation and maintenance platform. By automatically generating a digital inspection report containing detailed contour data and statistical indicators, it provides objective evidence for quality acceptance and enables precise post-event traceability of quality problems, forming a closed loop of quality management.

[0036] In one embodiment of the present invention, the cable wrinkle detection device further includes a power supply system, which can provide DC power to the detection device, support the device to move and detect continuously for more than 4 hours, and is equipped with a dedicated charger, which can meet the needs of mobile detection at construction sites and long-term operation.

[0037] See also Figure 1 As shown, the present invention also provides a cable wrinkle detection method using the cable wrinkle detection device of the above embodiment. The detection method includes: controlling the clamping assembly to clamp the cable; adjusting the clamping assembly to rotate around the cable; and adjusting the detection device so that the detection direction of the detection device is always perpendicular to the bending surface of the cable.

[0038] In the above technical solution, the host computer controls the clamping assembly to clamp the cable, ensuring that the detection device can be stably attached to the cable surface. Through precise control of the clamping assembly, it can adapt to cables of different diameters and shapes, with a diameter range from φ60mm to φ150mm, thereby improving the adaptability of the cable wrinkle detection device and ensuring stable contact between the device and the cable during the detection process, avoiding measurement deviations caused by unstable clamping. Then, the clamping assembly is adjusted to rotate around the cable, enabling the detection device to automatically detect and align the location of cable wrinkles. This eliminates the need for manual visual inspection to locate wrinkles and manual adjustment of the detection device to align with the bending surface where the wrinkles are located, improving the efficiency and accuracy of wrinkle detection. Finally, the detection device is adjusted to ensure that its detection direction is always perpendicular to the bending surface of the cable. In addition to automatically adjusting the clamping assembly to ensure that the detection device is always perpendicular to the folds on the bending surface, the detection direction of the device itself can also be adjusted to ensure that it is perpendicular to the bending surface. Alternatively, both methods can be combined: first, the detection direction of the device is coarsely adjusted by rotating the clamping assembly circumferentially, and then the angle of the device is finely adjusted to ensure that its detection direction is always perpendicular to the bending surface. This greatly improves the adjustment accuracy of the detection device, thereby ensuring that its detection direction is accurately perpendicular to the bending surface where the folds are located, and further improving the fold detection accuracy of the device.

[0039] In one embodiment of the present invention, the step of controlling the clamping assembly to clamp the cable includes: adjusting the slider to align the first roller with the cable; controlling the second clamping section and the third clamping section to move into the clamping space to clamp the cable; and controlling the sliders on the second clamping section and the third clamping section to move relative to the first clamping section so that the first clamping section, the second clamping section and the third clamping section jointly clamp the cable.

[0040] In the above technical solution, since the cable may be in different bending states or have different diameters, the position of the cable within the clamping space is not fixed. Fine-tuning the slider allows the first roller to be aligned with the cable surface, improving the positioning accuracy of the first roller and ensuring that subsequent clamping sections can accurately clamp the cable. Controlling the movement of the second and third clamping sections into the clamping space to clamp the cable initially defines the relative position between the wrinkle detection device and the cable. Then, controlling the sliders on the second and third clamping sections to move relative to the first clamping section allows all three sections to jointly clamp the cable, ensuring that the rollers on each clamping section can contact the cable from multiple directions, achieving cable clamping and improving clamping stability. Adjusting the slider allows the clamping assembly to adapt to cables of different diameters, ensuring a tight fit between the entire clamping assembly and the cable surface, thereby reducing detection errors and improving detection accuracy and adaptability.

[0041] In one embodiment of the present invention, the step of adjusting the clamping assembly to rotate around the cable includes: controlling the second drive unit to start so that the clamping assembly rotates around the cable; acquiring an image of the cable surface; identifying the bending surface of the cable, at which time the detection device is in a position where the detection laser is perpendicular to the bending surface; and controlling the second drive unit to stop.

[0042] In the above technical solution, the second drive unit is activated, driving the clamping assembly to rotate circumferentially along the cable. This allows the vision component to fully cover the cable surface for detection and positioning of wrinkles, avoiding omissions and improving the comprehensiveness and accuracy of the detection. The vision component acquires images of the cable surface, providing a basis for subsequent automatic detection and positioning of wrinkles through image recognition. The host computer uses image recognition algorithms to determine the bending area of ​​the cable and its surface tilt angle based on the cable surface images captured by the vision component. Once a bending surface is identified, the control system adjusts the detection device via the second drive unit, bringing it to a detection position perpendicular to the bending surface. Then, the second drive unit is stopped, ensuring the detection device accurately stops at the optimal vertical detection position, avoiding fluctuations in detection data caused by rotation, and thus guaranteeing the accuracy of the measurement data.

[0043] In one embodiment of the present invention, after the step of stopping the second drive unit, the step of adjusting the clamping assembly to rotate around the cable further includes: after a preset time interval, or after the detection device moves a preset distance along the cable axis, returning to the step of starting the second drive unit to make the clamping assembly rotate around the cable.

[0044] In the above technical solution, since the position of the bending surface on the cable may change with the extension of the cable and the change of the cable posture, it is necessary to repeatedly rotate the clamping component around the cable so that the vision component can recalibrate the position of the fold, thereby ensuring that the detection device can always be perpendicular to the surface of the fold. However, continuously rotating the clamping component for calibration will not only seriously affect the detection efficiency, but may also cause cable damage due to repeated rotational friction between the clamping component and the cable. Therefore, a step is set to control the second drive unit to start after a preset time interval, or after the detection device moves a preset distance along the cable axis, so as to rotate the clamping component around the cable to detect and calibrate the position of the bending surface. This balances the circumferential fine calibration and axial movement detection, ensuring that the detection device can not only calibrate the position of the fold in a timely manner, but also maintain continuity and comprehensiveness in long-distance detection, which greatly improves the efficiency and accuracy of fold detection.

[0045] In one embodiment of the present invention, the detection method further includes: inputting a cable fold depth threshold; acquiring bending surface data and sending it to a host computer; activating a first drive unit to move the clamping assembly along the cable axial direction; calculating the cable fold depth based on the bending surface data; comparing the cable fold depth with the cable fold depth threshold; when the cable fold depth is less than or equal to the cable fold depth threshold, returning to the step of acquiring bending surface data and sending it to the host computer; when the cable fold depth is greater than the cable fold depth threshold, activating an alarm and recording alarm point details; controlling the detection device to stop or returning to the step of acquiring bending surface data and sending it to the host computer.

[0046] In the above technical solution, inputting a cable fold depth threshold clarifies the quality control standard, reduces invalid inspections, and improves work efficiency. Detection devices such as laser displacement sensors acquire bending surface data, providing raw data for subsequent analysis and judgment. Sending this data to a host computer facilitates centralized processing and analysis, as well as long-term data storage and traceability, which is key to achieving digital quality management. Activating the first drive unit moves the clamping assembly along the cable axis, enabling the detection device to inspect the cable surface along the cable's extension direction and continuously acquire cable bending surface data. The host computer performs depth analysis based on the bending surface data, calculating the specific cable fold depth. This automated analysis process not only improves detection efficiency but also ensures the objectivity and accuracy of the detection results. Comparing the calculated fold depth with a preset threshold is the core of automated decision-making. This operation can quickly identify whether the fold depth exceeds the allowable range, providing immediate feedback to on-site personnel. When the cable crease depth is less than or equal to the cable crease depth threshold, it indicates that the detected crease depth is within an acceptable range. The process then returns to acquiring bending surface data and sending it to the host computer to continue the inspection. This cyclical mechanism ensures the comprehensiveness and continuity of the inspection. When the detected crease depth exceeds the threshold, an alarm mechanism is immediately activated, and detailed information about the alarm point, including location, time, and depth data, is recorded. The importance of this step lies in its ability to immediately alert on-site personnel and provide precise location information for subsequent maintenance and repair work. This allows on-site personnel to take timely and accurate measures, such as correcting the bending radius or slowing down the traction speed, to adjust the construction process and achieve "in-process control," effectively preventing the generation of defective products. After detecting a defective cable segment and activating the alarm, the inspection device can be shut down for on-site handling by operators, or the inspection can continue without shutting down, ensuring the continuity of the inspection and improving inspection efficiency.

[0047] As can be seen from the above description, the embodiments of the present invention achieve the following technical effects: The use of a detection device 1, such as a laser displacement sensor, can accurately measure the wrinkles caused by minute deformations on the cable surface. The clamping assembly can clamp the cable and also provides a reliable mounting base for the detection device 1, ensuring that the detection device 1 is in a stable position to detect the surface condition of the cable, especially the wrinkles on the bending surface. The clamping assembly can move around the circumference of the cable, thereby adjusting the detection direction of the detection device 1. Even if the position of the bending surface of the cable changes, the clamping assembly can still move the detection device 1 to a suitable position, ensuring that the detection direction of the detection device 1 is always perpendicular to the bending surface of the cable, detecting the wrinkle depth from directly above the wrinkle. This minimizes the impact of the detection angle on the detection accuracy, significantly improving the detection accuracy of the detection device and significantly reducing the risk of insulation failure. Through precise testing and process intervention, it is estimated that the insulation failure rate caused by folds can be reduced by more than 40%, preventing single cable breakdown accidents and saving replacement costs and power outage losses of up to several million yuan per kilometer. This will avoid significant economic losses caused by insulation failures, while ensuring personal and equipment safety and reducing the risk of power grid accidents caused by cable failures.

[0048] Obviously, the embodiments described above are merely some, not all, embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention.

[0049] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0050] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A cable wrinkle detection device, characterized in that, The device includes a detection device (1) and a clamping assembly. The clamping assembly is capable of clamping the cable. The detection device (1) is disposed on the clamping assembly. The clamping assembly is capable of moving around the circumference of the cable. The detection direction of the detection device (1) is always perpendicular to the bending surface of the cable. The detection device (1) is capable of detecting the wrinkle depth of the bending surface.

2. The cable wrinkle detection device according to claim 1, characterized in that, The clamping assembly includes a clamping section, on which a slider (22) is provided. The slider (22) is capable of sliding along the clamping section. The detection device (1) is provided on the slider (22). The detection device (1) is provided with a vision component (11). The vision component (11) is capable of identifying the bent surface of the cable.

3. The cable wrinkle detection device according to claim 2, characterized in that, The slider (22) is provided with a first roller (221) and a first driving part (222). The first roller (221) can contact the surface of the cable and clamp the cable, and the first driving part (222) can drive the first roller (221) to roll along the axial direction of the cable.

4. The cable wrinkle detection device according to claim 2, characterized in that, The slider (22) is also provided with a rotating component, which includes a second roller (31) and a second driving part. The second roller (31) can contact the surface of the cable, and the second driving part can drive the second roller (31) to rotate so as to drive the clamping component to rotate circumferentially along the cable.

5. The cable wrinkle detection device according to claim 2, characterized in that, The clamping section includes a first clamping section (211), and a second clamping section (212) and a third clamping section (213) slidably disposed on the first clamping section (211). The first clamping section (211), the second clamping section (212) and the third clamping section (213) form a C-shaped structure, and the inner space of the C-shaped structure is a clamping space (215).

6. The cable wrinkle detection device according to claim 5, characterized in that, The clamping section further includes a fourth clamping section (214), one end of which is slidably disposed on the second clamping section (212), and the other end is slidably disposed on the third clamping section (213). The fourth clamping section (214), together with the first clamping section (211), the second clamping section (212), and the third clamping section (213), forms a rectangular structure, and the inner side of the rectangular structure is a clamping space (215).

7. A method for detecting cable wrinkles, characterized in that, The cable wrinkle detection device as described in any one of claims 1 to 6 is used, and the detection method includes: Control the clamping assembly to clamp the cable; Adjust the clamping assembly to rotate around the cable; Adjust the detection device so that the detection direction of the device is always perpendicular to the bending surface of the cable.

8. The cable wrinkle detection method according to claim 7, characterized in that, The steps for controlling the clamping assembly to clamp the cable include: Adjust the slider to align the first roller with the cable; Control the movement of the second and third clamping sections into the clamping space to clamp the cable; Control the movement of the sliders on the second and third clamping sections relative to the first clamping section so that the first, second, and third clamping sections together clamp the cable.

9. The cable wrinkle detection method according to claim 7, characterized in that, The steps for adjusting the clamping assembly to rotate around the cable include: The second drive unit is activated to cause the clamping assembly to rotate around the cable; Acquire images of the cable surface; Once the bending surface of the cable is detected, the detection device is positioned so that the detection laser is perpendicular to the bending surface. Stop the second drive unit.

10. The cable wrinkle detection method according to claim 9, characterized in that, After the step of stopping the second drive unit, the step of adjusting the rotation of the clamping assembly around the cable also includes: After a preset time interval, or after the detection device has moved a preset distance along the cable axis, the second drive unit is restarted to make the clamping assembly rotate around the cable.

11. The cable wrinkle detection method according to claim 7, characterized in that, The detection methods also include: Input the threshold for cable fold depth; Acquire the data of the bent surface and send it to the host computer; The first drive unit is activated to move the clamping assembly along the cable axis; Calculate the cable crease depth based on the bending surface data; Compare cable crease depth with cable crease depth threshold; When the cable crease depth is less than or equal to the cable crease depth threshold, return to the step of obtaining the bending surface data and sending it to the host computer; When the cable fold depth exceeds the cable fold depth threshold, an alarm is triggered and detailed alarm point information is recorded. Return to the steps of acquiring the bent surface data and sending it to the host computer.

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