Detection device based on cable production and detection method thereof

Abstract

The invention discloses a cable production-based detection device and a detection method thereof, and belongs to the field of cable production detection, the cable production-based detection device comprises a detection base, the detection base is provided with two groups of positioning cylinders, a detection assembly and a driving assembly, the positioning cylinders are symmetrically arranged and are used for clamping a cable, the detection assembly is used for detecting the appearance of the cable, and the driving assembly is used for driving the positioning cylinders to rotate; the driving assembly is used for adjusting the direction of the detection assembly, a servo motor drives a transmission gear to be engaged with a gear part of an adjusting ring, an industrial camera is driven to move circumferentially around a cable, and all-directional dead-corner-free detection can be carried out on the appearance of the cable in cooperation with high-definition shooting of the industrial camera and real-time display of a displayer. The problem of blind areas existing in traditional fixed position detection is effectively avoided, meanwhile, the stability of the industrial camera in the movement process is ensured through matching of a baffle ring and an adjusting ring in the auxiliary assembly, the detection accuracy is further improved, and the defects such as tiny scratches and cracks on the surface of the cable can be found in time.

Description

Technical Field

[0001] This invention belongs to the field of cable production and testing technology, specifically relating to a testing device and testing method based on cable production. Background Technology

[0002] In the cable manufacturing industry, cable quality inspection is of paramount importance. As a key carrier in fields such as power transmission and information transmission, the quality of cables directly affects the stable operation and safety performance of the entire system. Among the many inspection items, cable appearance inspection is a fundamental and important link.

[0003] In existing technologies, there are several methods for cable appearance inspection. First, some manufacturers use direct visual inspection, but this method is not only extremely inefficient, but also prone to missed detections due to human visual fatigue and subjective judgment differences, failing to guarantee the accuracy and comprehensiveness of the inspection. Second, some use simple mechanical inspection devices, such as sensors with fixed positions to detect obvious protrusions or depressions on the cable surface. However, such devices can only detect limited information at specific locations on the cable and cannot effectively inspect other parts of the cable circumference, making it difficult to detect circumferential cracks, scratches, and other defects on the cable surface, thus failing to meet the needs for comprehensive and high-precision appearance inspection of cables. Third, some advanced inspection equipment, such as devices that use laser scanning to detect parameters such as the cable's outer diameter, while having certain advantages in dimensional inspection, are not effective at detecting minor defects on the cable surface, and are expensive and complex to maintain, making them unsuitable for widespread application in large-scale production. Therefore, we propose an inspection device and its inspection method based on cable production. Summary of the Invention

[0004] The purpose of this invention is to provide a testing device and method based on cable production, so as to solve the problems of incomplete testing, low efficiency, poor accuracy and high cost of existing cable appearance inspection technology mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a testing device based on cable production, the testing device comprising: A detection base, on which a positioning cylinder, a detection component, and a driving component are mounted; The positioning cylinders are arranged in two symmetrical sets for clamping the cable; The detection component is used to inspect the appearance of the cable; The driving component is used to adjust the orientation of the detection component; The detection assembly includes an industrial camera, a display, and an adjustment ring. The industrial camera is mounted in a positioning cavity within the adjustment ring, and a gear portion is provided around the adjustment ring. The display is electrically connected to the industrial camera. The drive assembly consists of a servo motor and transmission gears. The transmission gears mesh with the gear portion surrounding the adjustment ring, and the output end of the servo motor is connected to the transmission gears.

[0006] In a preferred embodiment, auxiliary components are provided on both sides of the adjusting ring. The auxiliary components include two sets of retaining rings. Each set of retaining rings has an annular groove on its opposite side. The two sides of the adjusting ring match the structure of the annular grooves. The two sides of the adjusting ring extend into the annular grooves of the two sets of retaining rings, respectively.

[0007] In a preferred embodiment, the drive assembly further includes a motor assembly sleeve, which is welded above one set of the retaining rings, and the servo motor is mounted in the motor assembly sleeve.

[0008] In a preferred embodiment, the auxiliary component further includes an adjustment seat, which contains a bidirectional screw. Each set of retaining rings has an L-shaped rod welded to one side, and the lower ends of the two L-shaped rods extend into the adjustment seat and are connected to the bidirectional screw inside the adjustment seat.

[0009] In a preferred embodiment, the auxiliary component further includes an adjusting screw and an adjusting motor. The adjusting screw is disposed in a first guide groove on the detection base, the adjusting motor is disposed on the side wall of the first guide groove, and the adjusting seat is disposed in the first guide groove and is throttle-connected to the adjusting screw in the first guide groove.

[0010] In a preferred embodiment, each of the two symmetrically distributed positioning cylinders is equipped with a positioning post, the top of which is provided with an adjustment handle, and the positioning post is installed on the positioning cylinder by means of a threaded connection.

[0011] In a preferred embodiment, the detection base is further provided with a second guide groove, in which a bidirectional lead screw and two sets of guide seats are provided. The two sets of guide seats are connected to the bidirectional lead screw in a transmission connection, and the bidirectional lead screw is connected to the output end of a drive motor on the side wall of the second guide groove.

[0012] In a preferred embodiment, a support block extends from the lower part of the positioning cylinder. Positioning holes are reserved on both the guide seat and the support block. The positioning cylinder is detachably mounted on the guide seat in conjunction with the support block below.

[0013] In a preferred embodiment, the detection base is provided with a visual inspection area, and the visual inspection area is provided with two sets of support parts.

[0014] A testing method based on cable production is also provided, which includes the following steps: S1. Provide detection equipment; S2. At the beginning, the cable can be manually observed through the visual inspection area on the detection base using the support part. If there are no obvious scratches on the cable, then the detection components can be used for testing. S3. When the component needs to be tested, firstly, drive the bidirectional lead screw to rotate by the drive motor, so that the two sets of guide seats in the second guide groove move the positioning cylinder to the appropriate position, place the cable between the two sets of positioning cylinders, rotate the adjustment handle at the top of the positioning column, and use the positioning column to clamp and fix the cable. S4. Then, start the adjustment motor to drive the adjustment screw to rotate, so that the adjustment seat moves in the first guide groove. At the same time, rotate the bidirectional screw and adjust the position of the two sets of retaining rings through the L-shaped rod so that the two sides of the adjustment ring are matched and engaged with the annular groove of the retaining ring, ensuring that the industrial camera is aligned with the cable inspection area. S5. Next, turn on the industrial camera and monitor. The servo motor meshes with the gear of the adjustment ring through the transmission teeth, driving the adjustment ring to rotate, so that the industrial camera moves around the circumference of the cable to perform all-round shooting and inspection of the cable appearance. The image is transmitted to the monitor in real time. S6. After the test is completed, turn off all equipment, loosen the positioning column, and take out the tested cable from the positioning cylinder. If it is necessary to change the test specifications, the positioning cylinder can be replaced by disassembling through the positioning holes of the support block and the guide seat.

[0015] Compared with the prior art, the beneficial effects of the present invention are: This cable production-based inspection device and method uses a servo motor to drive the transmission gears to mesh with the gears of the adjusting ring, thereby driving an industrial camera to move around the circumference of the cable. Combined with the high-definition shooting of the industrial camera and the real-time display on the monitor, it can perform all-round inspection of the cable appearance without blind spots, effectively avoiding the blind spot problem of traditional fixed position inspection. At the same time, the matching of the retaining ring and the adjusting ring in the auxiliary components ensures the stability of the industrial camera during the movement process, further improving the accuracy of the inspection and enabling timely detection of minor scratches, cracks and other defects on the cable surface. This cable production-based inspection device and method uses baffle rings at both ends to form a relatively enclosed space, which can block stray light from interfering with the industrial camera's imaging. In the cable inspection environment, unstable light or direct strong light may cause problems such as reflection, overexposure, or shadows in the image, affecting the identification of subtle defects on the cable surface. The baffle rings' shielding effect allows the industrial camera to work under relatively stable lighting conditions, resulting in images with uniform brightness and clear details. This helps operators or subsequent image analysis systems to more accurately determine whether there are defects in the cable, thus improving the reliability of the inspection. This cable production-based testing device and method, through the positioning hole design of the support block and guide seat, allows for the detachable replacement of positioning cylinders of different specifications to meet the clamping requirements of cables of various diameters. On the other hand, the movement of the adjustment seat, the position adjustment of the retaining ring, and the circumferential motion detection of the industrial camera enable the device to have sufficient detection coverage in both the cable length direction and the circumferential direction, making it suitable for the appearance inspection of various cables in different production scenarios and greatly improving the versatility of the device. This cable production-based testing device and method allows for preliminary manual observation through a visual inspection area during the testing process, which can quickly screen out cables with obvious defects and reduce the workload of subsequent precision testing. Attached Figure Description

[0016] Figure 1 This is a first-view diagram of the overall structure of the present invention; Figure 2 This is a second-view diagram of the overall structure of the present invention; Figure 3 This is a schematic diagram of the auxiliary component part of the structure of the present invention; Figure 4 This is a schematic diagram of the installation structure of the drive component of the present invention; Figure 5 This is a schematic diagram of the industrial camera mounting structure of the present invention; Figure 6 This is a schematic diagram of the retaining ring mounting structure of the present invention; Figure 7 This is a schematic diagram of the installation structure of the positioning cylinder and positioning column of the present invention.

[0017] In the diagram: 1. Detection base; 11. First guide groove; 12. Second guide groove; 13. Visual inspection area; 14. Support part; 2. Positioning cylinder; 21. Positioning column; 22. Support block; 3. Detection component; 31. Industrial camera; 32. Display; 33. Adjusting ring; 331. Gear part; 332. Positioning cavity; 4. Drive component; 41. Servo motor; 42. Transmission gear; 43. Motor assembly cylinder; 5. Auxiliary component; 51. Retaining ring; 511. Annular groove; 52. L-shaped rod; 53. Bidirectional screw; 54. Adjusting seat; 55. Adjusting screw; 56. Adjusting motor; 6. Bidirectional lead screw; 61. Guide seat; 62. Drive motor. Detailed Implementation

[0018] The present invention will be further described below with reference to embodiments.

[0019] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0020] Example 1

[0021] Please see Figures 1-7 This invention provides a testing device based on cable production, including a testing base 1, a visual inspection area 13 on the testing base 1, two sets of support parts 14 on the visual inspection area 13, and a positioning cylinder 2, a testing component 3, and a driving component 4 mounted on the testing base 1. The positioning cylinders 2 are arranged symmetrically in two sets for clamping cables. Each of the two symmetrically distributed positioning cylinders 2 is equipped with a positioning post 21, the top of which is provided with an adjustment handle. The positioning post 21 is mounted on the positioning cylinder 2 via a threaded connection. The testing component 3 is used for testing... The cable appearance is measured. The drive assembly 4 is used to adjust the position of the detection assembly 3. The detection assembly 3 includes an industrial camera 31, a display 32 and an adjustment ring 33. The industrial camera 31 is installed in the positioning cavity 332 inside the adjustment ring 33. The adjustment ring 33 is provided with a gear part 331 on its periphery. The display 32 is electrically connected to the industrial camera 31. The drive assembly 4 consists of a servo motor 41 and a transmission gear 42. The transmission gear 42 meshes with the gear part 331 on the periphery of the adjustment ring 33. The output end of the servo motor 41 is connected to the transmission gear 42.

[0022] In this embodiment, the visual inspection area 13 and two sets of support parts 14 provided on the inspection base 1 can provide a convenient manual preliminary observation platform for cable inspection. The staff can first conduct a quick inspection of the cable through the visual inspection area 13, promptly discover obvious appearance defects, achieve preliminary screening, reduce the workload of subsequent precision inspection, improve the efficiency of the overall inspection process, and at the same time complement the automated inspection of the industrial camera 31 to enhance the comprehensiveness of the inspection.

[0023] In this embodiment, the design of two symmetrically distributed positioning cylinders 2 and positioning posts 21 allows for flexible adjustment of the clamping force on the cable through the adjustment handle at the top of the positioning post 21 and the threaded connection, ensuring that cables of different diameters can be firmly clamped and preventing cable displacement during the testing process from affecting the testing accuracy.

[0024] In this embodiment, the industrial camera 31 is mounted in the positioning cavity 332 within the adjusting ring 33. The positioning cavity 332 provides a stable installation space for the industrial camera 31, ensuring that its position is fixed during the inspection process and reducing image blurring caused by shaking. At the same time, the servo motor 41 in the drive assembly 4 drives the adjusting ring 33 to move stably around the circumference of the cable through the meshing of the transmission gear 42 and the outer gear part 331 of the adjusting ring 33, thereby enabling the adjusting ring 33 to drive the industrial camera 31 to move around the cable circumference stably, achieving all-round and accurate inspection of the cable appearance and effectively avoiding blind spots in the inspection.

[0025] In this embodiment, the electrical connection between the display 32 and the industrial camera 31 enables the real-time transmission and display of the cable appearance image captured by the industrial camera 31. Workers can intuitively observe the details of the cable surface through the display 32 and promptly determine whether there are defects without relying on close-range manual observation. This not only improves the convenience of inspection but also allows for clearer capture of subtle defects, thereby enhancing the accuracy of inspection.

[0026] It should be noted that the industrial camera 31 in this application is a G900SEII rugged industrial compact camera. The G900SE II model integrates Bluetooth and Wi-Fi functions, which can ensure high-speed wireless transmission of image data to the display 32. The display 32 is a TPC-1582H model display device with built-in Wi-Fi and Bluetooth modules, which supports wireless connection to the industrial camera 31.

[0027] Please see Figures 1-6 The adjusting ring 33 is equipped with auxiliary components 5 on both sides. The auxiliary components 5 include two sets of retaining rings 51. Each set of retaining rings 51 has an annular groove 511 on one side opposite to the other. The two sides of the adjusting ring 33 match the structure of the annular groove 511. The two sides of the adjusting ring 33 extend into the annular groove 511 of the two sets of retaining rings 51 respectively. The drive component 4 also includes a motor assembly cylinder 43. The motor assembly cylinder 43 is welded above one set of retaining rings 51. The servo motor 41 is installed in the motor assembly cylinder 43.

[0028] In this embodiment, the matching of the retaining ring 51 and the adjusting ring 33 ensures the stability of the industrial camera 31 during its movement, further improving the accuracy of detection and enabling timely detection of minor scratches, cracks, and other defects on the cable surface.

[0029] In this embodiment, the relatively enclosed space formed by the two end retaining rings 51 can block the interference of external stray light on the industrial camera 31. In the cable inspection environment, unstable light or direct strong light may cause problems such as reflection, overexposure or shadows in the image, affecting the identification of minor defects on the cable surface. The shielding effect of the retaining rings 51 allows the industrial camera 31 to work under relatively stable lighting conditions, and the captured image has uniform brightness and clear details, which helps operators or subsequent image analysis systems to more accurately determine whether there are defects in the cable and improves the reliability of the inspection.

[0030] Please see Figure 1 , Figure 2 , Figure 4 and Figure 6 The auxiliary component 5 also includes an adjustment seat 54, which contains a bidirectional screw 53. Each set of retaining rings 51 has an L-shaped rod 52 welded to one side. The lower ends of the two L-shaped rods 52 extend into the interior of the adjustment seat 54 and are connected to the bidirectional screw 53 inside the adjustment seat 54. The auxiliary component 5 also includes an adjustment screw 55 and an adjustment motor 56. The adjustment screw 55 is located in the first guide groove 11 on the detection base 1. The adjustment motor 56 is located on the side wall of the first guide groove 11. The adjustment seat 54 is located in the first guide groove 11 and is connected to the adjustment screw 55 in the first guide groove 11.

[0031] In this embodiment, through the cooperation of the bidirectional screw 53 and the L-shaped rod 52, the two sets of retaining rings 51 can achieve synchronous and symmetrical movement in opposite directions or in opposite directions. Through this design, the spacing of the retaining rings 51 can be quickly adjusted, thereby facilitating the subsequent quick installation and disassembly of the adjusting ring 33 and the industrial camera 31.

[0032] Please see Figure 1 and Figure 7 The detection base 1 is also provided with a second guide groove 12. The second guide groove 12 is provided with a bidirectional lead screw 6 and two sets of guide seats 61. The two sets of guide seats 61 are connected to the bidirectional lead screw 6 in a transmission manner. The bidirectional lead screw 6 is connected to the output end of the drive motor 62 on the side wall of the second guide groove 12. The positioning cylinder 2 has an integral structure extending a support block 22 below it. Both the guide seat 61 and the support block 22 have reserved positioning holes. The positioning cylinder 2 is detachably mounted on the guide seat 61 in conjunction with the support block 22 below it.

[0033] In this embodiment, the bidirectional lead screw 6 is driven to rotate by the drive motor 62, which enables the two sets of guide seats 61 to move synchronously towards or away from each other, thereby driving the positioning cylinder 2 to quickly adjust the spacing. The adjustment process does not require manual measurement and positioning, and can accurately adapt to the testing requirements of cables of different diameters, significantly improving the efficiency of testing preparation and reducing human operation errors.

[0034] In this embodiment, the positioning cylinder 2 is detachably connected to the positioning hole of the guide seat 61 through the support block 22, which facilitates the quick replacement of positioning cylinders 2 of different specifications according to actual testing needs. This modular design enables the device to easily adapt to the testing of various types of cables without modifying the overall structure, reducing equipment upgrade costs and enhancing the versatility and scalability of the device.

[0035] It is worth noting that the diameter of the adjusting ring 33 in this application is larger than that of the positioning cylinder 2. When the industrial camera 31 is placed in the positioning cavity 332 of the adjusting ring 33, the industrial camera 31 will not touch the cable in the positioning cylinder 2.

[0036] Example 2

[0037] Based on Embodiment 1, this invention also provides a testing method based on cable production, comprising the following steps: S1. At the beginning, the cable can be manually observed through the visual inspection area 13 on the detection base 1 and the support part 14. If there are no obvious scratches on the cable, then the detection component 3 can be used for detection. S2. When the component 3 needs to be tested, firstly, the bidirectional lead screw 6 is rotated by the drive motor 62, so that the two sets of guide seats 61 in the second guide groove 12 move the positioning cylinder 2 to a suitable position, the cable is placed between the two sets of positioning cylinders 2, and the adjusting handle at the top of the positioning column 21 is rotated to clamp and fix the cable using the positioning column 21. S3. Then, start the adjustment motor 56 to drive the adjustment screw 55 to rotate, so that the adjustment seat 54 moves in the first guide groove 11. At the same time, rotate the bidirectional screw 53 and adjust the position of the two sets of retaining rings 51 through the L-shaped rod 52, so that the two sides of the adjustment ring 33 are fully adapted and engaged with the annular groove 511 of the retaining ring 51. At this time, the lens axis of the industrial camera 31 coincides with the central axis of the cable, and the position calibration of the detection component 3 is completed. S4. Next, turn on the industrial camera 31 and the display 32. The servo motor 41 meshes with the gear part 331 of the adjustment ring 33 through the transmission gear 42, driving the adjustment ring 33 to rotate, so that the industrial camera 31 moves around the circumference of the cable to perform all-round shooting and inspection of the cable appearance, and the image is transmitted to the display 32 in real time. S5. After the test is completed, turn off all equipment, loosen the positioning column 21, and take out the tested cable from the positioning cylinder 2. If the test specification needs to be changed, the positioning cylinder 2 can be disassembled and replaced through the positioning hole of the support block 22 and the guide seat 61.

[0038] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A testing device based on cable production, characterized in that, The detection device includes: The detection base (1) is equipped with a positioning cylinder (2), a detection component (3) and a drive component (4). The positioning cylinders (2) are arranged in two symmetrical sets for clamping the cable; The detection component (3) is used to detect the appearance of the cable; The driving component (4) is used to adjust the orientation of the detection component (3); The detection component (3) includes an industrial camera (31), a display (32) and an adjustment ring (33), wherein the industrial camera (31) is assembled in the positioning cavity (332) inside the adjustment ring (33), and a gear part (331) is provided on the periphery of the adjustment ring (33), and the display (32) is electrically connected to the industrial camera (31). The drive assembly (4) consists of a servo motor (41) and a transmission gear (42). The transmission gear (42) meshes with the gear part (331) on the periphery of the adjusting ring (33). The output end of the servo motor (41) is connected to the transmission gear (42) for transmission.

2. The testing device based on cable production according to claim 1, characterized in that: The adjusting ring (33) is provided with auxiliary components (5) on both sides. The auxiliary components (5) include two sets of retaining rings (51). Each of the two sets of retaining rings (51) has an annular groove (511) on one side opposite to the other. The two sides of the adjusting ring (33) match the structure of the annular groove (511). The two sides of the adjusting ring (33) extend into the annular groove (511) of the two sets of retaining rings (51).

3. The testing device based on cable production according to claim 2, characterized in that: The drive assembly (4) also includes a motor assembly cylinder (43), which is welded above one of the retaining rings (51), and the servo motor (41) is installed in the motor assembly cylinder (43).

4. The testing device based on cable production according to claim 2, characterized in that: The auxiliary component (5) also includes an adjustment seat (54), which is provided with a bidirectional screw (53). Each set of retaining rings (51) has an L-shaped rod (52) welded to one side. The lower ends of the two L-shaped rods (52) extend into the adjustment seat (54) and are connected to the bidirectional screw (53) inside the adjustment seat (54).

5. The testing device based on cable production according to claim 4, characterized in that: The auxiliary component (5) also includes an adjusting screw (55) and an adjusting motor (56). The adjusting screw (55) is located in the first guide groove (11) on the detection base (1). The adjusting motor (56) is located on the side wall of the first guide groove (11). The adjusting seat (54) is located in the first guide groove (11) and is connected to the adjusting screw (55) in the first guide groove (11) in a transmission connection.

6. The testing device based on cable production according to claim 1, characterized in that: Positioning pins (21) are installed on both sets of symmetrically distributed positioning cylinders (2). The top of the positioning pin (21) is provided with an adjustment handle, and the positioning pin (21) is installed on the positioning cylinder (2) by means of threaded connection.

7. The testing device based on cable production according to claim 5, characterized in that: The detection base (1) is also provided with a second guide groove (12), in which a bidirectional lead screw (6) and two sets of guide seats (61) are provided. The two sets of guide seats (61) are connected to the bidirectional lead screw (6) in a transmission connection. The bidirectional lead screw (6) is connected to the output end of the drive motor (62) on the side wall of the second guide groove (12).

8. The testing device based on cable production according to claim 7, characterized in that: The positioning cylinder (2) has an integral structure extending below it with a support block (22). Both the support block (22) and the guide seat (61) have reserved positioning holes. The positioning cylinder (2) is detachably mounted on the guide seat (61) in conjunction with the support block (22) below it.

9. A testing device based on cable production according to claim 7, characterized in that: The detection base (1) is provided with a visual inspection area (13), and the visual inspection area (13) is provided with two sets of support parts (14).

10. A testing method based on cable production, comprising the following steps: S1. Provide detection equipment; S2. At the beginning, the cable can be manually observed through the visual inspection area (13) on the detection base (1) and the support part (14). If there are no obvious scratches on the cable, then the detection component (3) can be used for detection. S3. When the component (3) needs to be tested, first drive the bidirectional lead screw (6) to rotate through the drive motor (62), so that the two sets of guide seats (61) in the second guide groove (12) drive the positioning cylinder (2) to move to the appropriate position, place the cable between the two sets of positioning cylinders (2), rotate the adjustment handle at the top of the positioning column (21), and use the positioning column (21) to clamp and fix the cable. S4. Then, start the adjustment motor (56) to drive the adjustment screw (55) to rotate, so that the adjustment seat (54) moves in the first guide groove (11). At the same time, rotate the bidirectional screw (53) and adjust the position of the two sets of retaining rings (51) through the L-shaped rod (52) so that the two sides of the adjustment ring (33) are matched and engaged with the annular groove (511) of the retaining ring (51) to ensure that the industrial camera (31) is aligned with the cable detection area. S5. Next, turn on the industrial camera (31) and the display (32). The servo motor (41) meshes with the gear part (331) of the adjustment ring (33) through the transmission gear (42), driving the adjustment ring (33) to rotate, so that the industrial camera (31) moves around the circumference of the cable and performs all-round shooting inspection of the cable appearance. The image is transmitted to the display (32) in real time. S6. After the test is completed, turn off all equipment, loosen the positioning column (21), and take the tested cable out of the positioning cylinder (2). If the test specification needs to be changed, the positioning cylinder (2) can be disassembled and replaced through the positioning hole of the support block (22) and the guide seat (61). The feature is that the detection device is a detection device based on cable production as described in any one of claims 1 to 9.

Images