A cable quality test apparatus

Abstract

The application relates to the technical field of cable processing, in particular to a cable quality testing equipment, which comprises a test box body, a lighting cover plate is detachably arranged at the upper end of the test box body, an integrated test mechanism is arranged in the test box body, a cable feeding mechanism is arranged on one side of the test box body, and a post-processing mechanism is arranged on the other side of the test box body, the integrated test mechanism comprises avoiding through grooves symmetrically arranged on the two sides of the test box body, and a compression resistance test assembly and an appearance detection assembly are arranged in the test box body. The compression resistance test assembly and the appearance detection assembly are integrated in the same test box body through the integrated test mechanism, the mechanical property and the surface quality can be detected at one time, multiple independent test stations need not be arranged, the equipment area can be greatly reduced, the cable transfer times between different equipment can be reduced, the secondary damage risk can be avoided, and the detection efficiency is remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of cable processing technology, and in particular to a cable quality testing device. Background Technology

[0002] Cable quality is directly related to the operational safety of power systems and the stability of signal transmission. Therefore, it is crucial to conduct quality testing on cables during the production process. Currently, cable quality testing mainly includes two aspects: appearance inspection and mechanical performance testing.

[0003] However, existing cable testing equipment has limited functionality and low integration, typically only capable of single-function testing. Appearance inspection and compressive strength testing need to be performed on separate equipment or at different workstations. This not only increases the floor space of the production line but also makes the cables susceptible to secondary damage due to repeated handling. Furthermore, the feeding mechanism of existing cable testing equipment often uses a simple traction wheel structure. When the speed of the cable reel fluctuates or the testing speed changes, it is difficult to maintain a constant cable tension. Excessive tension can cause the cable to stretch and deform, while insufficient tension can cause the cable to sag, resulting in distorted test data. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a cable quality testing device that solves the technical problems of limited functionality, low integration, and difficulty in maintaining constant cable tension in existing testing devices. It has the advantages of high integration, stable feeding, and comprehensive functions.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a cable quality testing device, including a test chamber, with a detachable lighting cover plate installed on the upper end of the test chamber. An integrated testing mechanism is arranged inside the test chamber, and a cable feeding mechanism is arranged on one side of the test chamber for stable cable feeding. The integrated testing mechanism is used for pressure resistance and appearance inspection. The integrated testing mechanism includes symmetrical clearance slots on both sides of the test chamber. A pressure resistance testing component and an appearance inspection component are arranged inside the test chamber to continuously test the mechanical properties and surface quality of the cable. Cable support components that support the cable upwards are symmetrically arranged on both sides of the pressure resistance testing component. During the test, the cable enters the test chamber from one clearance slot and exits from the other clearance slot. During this process, the appearance inspection component and the pressure resistance testing component... The testing components will perform performance tests on the cables. The cable feeding mechanism includes a mounting bracket, on which an active traction wheel is rotatably mounted. The active traction wheel is driven by a traction motor. A clamping cylinder is located above the active traction wheel. A driven clamping wheel is rotatably mounted at the piston rod end of the clamping cylinder. The driven clamping wheel and the active traction wheel are arranged to press against each other vertically. A lower floating guide wheel that can be raised and lowered vertically is movably mounted on the mounting bracket. An upper fixed guide wheel is located on one side of the lower floating guide wheel. The upper fixed guide wheel is fixedly mounted on the mounting bracket and located above the lower floating guide wheel. A counterweight block for providing constant tension is hung on the lower floating guide wheel. During the test, the cable will first pass between the active traction wheel and the driven clamping wheel, then pass under the lower floating guide wheel, then pass over the upper fixed guide wheel, and finally enter the interior of the test chamber.

[0006] Preferably, the pressure resistance testing assembly includes a movable turntable rotatably mounted inside the test chamber. A drive motor for driving the movable turntable to rotate is fixedly mounted at the bottom of the inner cavity of the test chamber. A mounting platform is fixedly mounted on the movable turntable, and a servo cylinder is provided on the mounting platform. A test pressure block is mounted on the piston rod end of the servo cylinder. A support pad is fixedly mounted on the movable turntable, and the support pad is located directly below the test pressure block. When the cable is located between the test pressure block and the support pad, the test pressure block will move downward under the drive of the servo cylinder.

[0007] Preferably, the support pad has a V-groove on the side facing the cable, and a pressure sensor is provided between the test block and the piston rod of the servo cylinder.

[0008] Preferably, the appearance inspection component includes an inspection ring and industrial cameras. The inspection ring is fixedly installed inside the test chamber. The center of the inspection ring has an inspection channel for the cable to pass through. Multiple industrial cameras are provided and evenly distributed along the circumference of the inspection ring. The lenses of the industrial cameras face the center of the inspection channel and are used to detect whether there are defects on the surface of the cable.

[0009] Preferably, the detection ring is also equipped with a ring light source, which surrounds the detection channel and is located in front of the industrial camera. The ring light source is used to supplement the light of the industrial camera, thereby making the image clearer.

[0010] Preferably, a hollow round tube is fixedly installed on the feed side of the test chamber. One end of the hollow round tube is connected to the clearance groove, and a guide roller is movably installed on the other end of the hollow round tube. After the cable is wound around the upper fixed guide roller, it will enter the hollow round tube and the clearance groove through the guide roller.

[0011] Preferably, the end of the hollow tube is provided with brushes arranged in an array along the circumferential direction. Before the cable enters the test chamber, the brushes will perform simple cleaning on the surface of the cable.

[0012] Preferably, a post-processing mechanism is provided on the other side of the test chamber. The post-processing mechanism includes an insulation sleeve, which is fixedly installed on the outside of the clearance groove. A heating ring is fixedly installed inside the insulation sleeve. An ink reservoir and a CNC nozzle are provided on the outside of the test chamber. The CNC nozzle is connected to the ink reservoir and is oriented towards the cable. The heating ring is used for indentation recovery, and the CNC nozzle is used for coding marking.

[0013] By employing the above technical solution, the present invention provides a cable quality testing device, which has at least the following beneficial effects: 1. This invention integrates the pressure resistance testing component and the appearance inspection component into the same testing chamber by setting up an integrated testing mechanism. The mechanical properties and surface quality can be tested in one go, eliminating the need for multiple independent testing stations. This not only significantly reduces the equipment footprint but also reduces the number of times the cable is transferred between different devices, avoiding the risk of secondary damage and significantly improving testing efficiency.

[0014] 2. This invention sets up an integrated testing mechanism with cable support components symmetrically arranged on both sides of the pressure resistance testing component. During the test, the cable is supported from both ends to prevent bending and deformation due to excessive suspension length. This ensures that the force applied by the pressure head is perpendicular to the cable axis. At the same time, with the real-time feedback from the pressure sensor, the pressure resistance test data can be more accurate and reliable.

[0015] 3. By setting up a cable feeding mechanism, the present invention utilizes the cooperation between the lower floating guide wheel and the counterweight block. When the feeding speed fluctuates, the lower floating guide wheel will automatically rise and fall to change the winding path, thus maintaining constant tension. Compared with electronic feedback control, this structure does not require sensors and complex algorithms, has a more direct response, lower cost, and more stable operation.

[0016] 4. By setting up a cable feeding mechanism, the present invention utilizes the cooperation between the hollow tube and the brush. Before the cable enters the test box, it is first cleaned by the brush to remove large dust particles attached to the surface. At the same time, the guide roller ensures that the cable enters the clearance groove at the correct angle, preventing scratches caused by friction with the edge of the clearance groove, thus providing a clean and intact cable surface for subsequent accurate testing.

[0017] 5. This invention integrates indentation recovery and defect marking by setting up a post-processing mechanism. First, the heating ring will locally heat the cable that has passed the pressure resistance test, so that the insulation material softens and the indentation automatically rebounds. Then, the CNC nozzle will accurately spray code at the defect position according to the test results, which can not only improve the product appearance quality, but also facilitate subsequent sorting and processing. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 The three-dimensional structure of the present invention Figure 1 ; Figure 2 The three-dimensional structure of the present invention Figure 2 ; Figure 3 This is a schematic diagram of the integrated testing mechanism in this invention; Figure 4 This is a schematic diagram of the structure of the compressive strength testing component in this invention; Figure 5 This is a schematic diagram of the appearance inspection component in this invention; Figure 6 This is a schematic diagram of the cable feeding mechanism in this invention; Figure 7 This is a schematic diagram of the post-processing mechanism in this invention.

[0019] In the diagram: 1. Test chamber; 2. Lighting cover; 3. Integrated test mechanism; 301. Clearance slot; 302. Compression test assembly; 3021. Movable turntable; 3022. Drive motor; 3023. Mounting platform; 3024. Servo cylinder; 3025. Support pad; 303. Cable support assembly; 304. Appearance inspection assembly; 3041. Inspection ring; 3042. Inspection channel; 3043. Industrial camera; 4. Cable feeding mechanism; 401. Mounting bracket; 402. Active traction wheel; 403. Traction motor; 404. Driven clamping wheel; 405. Clamping cylinder; 406. Lower floating guide wheel; 407. Upper fixed guide wheel; 408. Counterweight block; 5. Post-processing mechanism; 501. Insulation sleeve; 502. Heating ring; 503. Ink reservoir; 504. CNC nozzle. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Example 1 Existing cable testing equipment is limited in function and has low integration, typically only capable of single-function testing. Visual inspection and compressive strength testing must be performed on separate equipment or at different workstations. This not only increases the floor space required for the production line but also increases the risk of secondary damage to the cables due to repeated handling. To address this technical deficiency in existing technologies, such as... Figures 1-5 As shown in the figure, this embodiment proposes a cable quality testing device with high integration, stable feeding, and complete functions. The device includes a test chamber 1, with a detachable lighting cover 2 installed on the upper end of the test chamber 1. An integrated testing mechanism 3 is set inside the test chamber 1. A cable feeding mechanism 4 is set on one side of the test chamber 1, and a post-processing mechanism 5 is set on the other side of the test chamber 1. The cable feeding mechanism 4 is used to stably transport the cable, the integrated testing mechanism 3 is used for pressure resistance and appearance inspection, and the post-processing mechanism 5 is used for indentation recovery.

[0022] Specifically, the integrated testing mechanism 3 includes symmetrical clearance slots 301 on both sides of the test housing 1. The test housing 1 houses a compressive strength testing component 302 and a visual inspection component 304. Cable support components 303 are symmetrically arranged on both sides of the compressive strength testing component 302. During testing, the cable enters the test housing 1 through one clearance slot 301 and exits through the other clearance slot 301. During this process, the visual inspection component 304 and the compressive strength testing component 302 respectively perform [various tests / tests] on the cable. The compressive strength testing assembly 302 includes a movable turntable 3021 rotatably mounted inside a test chamber 1. A drive motor 3022 for driving the rotation of the movable turntable 3021 is fixedly mounted at the bottom of the inner cavity of the test chamber 1. A mounting platform 3023 is fixedly mounted on the movable turntable 3021. A servo cylinder 3024 is provided on the mounting platform 3023. A test pressure block is mounted on the piston rod end of the servo cylinder 3024. A support pad 3025 is fixedly mounted on the movable turntable 3021. 25 is located directly below the test block. When the cable is between the test block and the support pad 3025, the test block will move downward under the drive of the servo cylinder 3024. The support pad 3025 has a V-groove on its surface facing the cable. A pressure sensor is set between the test block and the piston rod of the servo cylinder 3024. The appearance inspection component 304 includes an inspection ring 3041 and an industrial camera 3043. The inspection ring 3041 is fixedly installed in the test housing 1. The center of the inspection ring 3041 has an inspection channel 3042 for the cable to pass through. Multiple industrial cameras 3043 are evenly distributed around the circumference of the inspection ring 3041. The lens of the industrial camera 3043 faces the center of the inspection channel 3042 and is used to detect whether there are defects on the surface of the cable. A ring light source is also installed on the inspection ring 3041. The ring light source is set around the inspection channel 3042 and is located in front of the industrial camera 3043. The ring light source is used to supplement the light of the industrial camera 3043, so as to make the image clearer.

[0023] As can be seen from the above, after the cable enters the test chamber 1 from the feed side bypass channel 301, it will first pass through the detection channel 3042 of the appearance inspection component 304, and then pass over the movable turntable 3021. At this time, the two cable support components 303 will support the cable from both sides of the movable turntable 3021. The cable support component 303 consists of a rotating shaft and a rubber wheel that is movably mounted on the rotating shaft. The rubber wheel contacts the cable to prevent the cable from sagging.

[0024] When the cable passes through the detection channel 3042 in the center of the detection ring 3041, the ring light source will be continuously lit to provide sufficient illumination for the industrial camera 3043. At the same time, multiple industrial cameras 3043 (usually 4, distributed at 90°) will simultaneously capture images of the cable surface and transmit the images to the image processing system to analyze in real time whether there are scratches, pits, bumps, uneven color, impurities, insulation layer damage, exposed copper, and other problems on the cable surface.

[0025] After a preset time interval, the cable feeding mechanism 4 will pause feeding. Then, the drive motor 3022 will start and drive the movable turntable 3021 to rotate, so that the test pressure block on the mounting table 3023 is aligned with the cable position. At this time, the support pad 3025 will be located directly below the cable, supporting the cable.

[0026] Next, the servo cylinder 3024 starts, the piston rod extends downward, pushing the test pressure block to apply pressure to the cable. It can perform constant pressure testing according to the set pressure, and constant displacement testing according to the set displacement. After the test is completed, the servo cylinder 3024 retracts, the drive motor 3022 reverses, the movable turntable 3021 resets, and then the cable feeding mechanism 4 resumes cable feeding, and the cable continues to move forward. During this process, the pressure sensor monitors the pressure value in real time and feeds it back to the control system.

[0027] This embodiment integrates the compression testing component 302 and the appearance inspection component 304 into the same test chamber 1 by setting up an integrated testing mechanism 3. This allows for dual testing of mechanical properties and surface quality in a single cable threading operation, eliminating the need for multiple independent testing stations. This significantly reduces the equipment footprint and the number of times cables need to be transferred between different devices, avoiding the risk of secondary damage and significantly improving testing efficiency. Furthermore, by setting up the integrated testing mechanism 3, cable support components 303 are symmetrically arranged on both sides of the compression testing component 302. During testing, these components support the cable from both ends, preventing bending and deformation due to excessive suspension length. This ensures that the pressure head's force direction is perpendicular to the cable axis. Combined with real-time feedback from pressure sensors, this makes the compression test data more accurate and reliable.

[0028] Example 2 Existing cable testing equipment often uses a simple traction wheel structure for its feeding mechanism. When the speed of the cable reel fluctuates or the testing speed changes, it is difficult to maintain a constant cable tension. Excessive tension can lead to cable stretching and deformation, while insufficient tension can cause the cable to sag, resulting in distorted test data. To address this technical deficiency, based on Embodiment 1, as follows... Figure 1 , Figure 2 as well as Figure 6As shown, this embodiment includes a cable feeding mechanism 4. Specifically, the cable feeding mechanism 4 includes a mounting bracket 401. A drive traction wheel 402 is rotatably mounted on the mounting bracket 401. The drive traction wheel 402 is driven by a traction motor 403. A clamping cylinder 405 is located above the drive traction wheel 402. A driven clamping wheel 404 is rotatably mounted at the piston rod end of the clamping cylinder 405. The driven clamping wheel 404 and the drive traction wheel 402 are arranged to press against each other vertically. A lower floating guide wheel 406 that can be raised and lowered vertically is movably mounted on the mounting bracket 401. An upper fixed guide wheel 407 is located on one side of the lower floating guide wheel 406. The upper fixed guide wheel 407 is fixedly mounted on the mounting bracket 401 and located above the lower floating guide wheel 406. A counterweight block 408 for providing constant tension is hung on the lower floating guide wheel 406. During the test, the cable first passes between the active traction wheel 402 and the driven clamping wheel 404, then passes under the lower floating guide wheel 406, then passes over the upper fixed guide wheel 407, and finally enters the interior of the test chamber 1. A hollow round tube is fixedly installed on the feed side of the test chamber 1. One end of the hollow round tube is connected to the clearance groove 301, and the other end of the hollow round tube is movably installed with a guide rubber wheel. After the cable passes through the upper fixed guide wheel 407, it enters the hollow round tube and the clearance groove 301 through the guide rubber wheel. Brushes are arranged in an array along the circumferential direction at the end of the hollow round tube. Before the cable enters the test chamber 1, the brushes will perform a simple cleaning of the cable surface.

[0029] As can be seen from the above, when using this device to test the cable, the operator first pulls the cable end between the active traction wheel 402 and the driven clamping wheel 404. Then, the clamping cylinder 405 is vented, the piston rod extends, and pushes the driven clamping wheel 404 downward to clamp the cable. At this time, the cable is clamped between the active traction wheel 402 and the driven clamping wheel 404 and will obtain traction friction.

[0030] Next, the operator will guide the cable head to pass under the lower floating guide wheel 406 and then upwards to pass over the upper fixed guide wheel 407. At this time, the cable will form an S-shaped feed path, and the gravity of the lower floating guide wheel 406 will be transmitted through the cable, thereby establishing a constant tension force on the entire cable.

[0031] When the speed of the pay-off reel fluctuates or the speed of the testing mechanism changes, the cable tension will change. If the tension increases, the lower floating guide wheel 406 is pulled up and the counterweight block 408 rises. If the tension decreases, the lower floating guide wheel 406 will fall under the gravity of the counterweight block 408. Thus, the lifting and lowering of the lower floating guide wheel 406 changes the wrapping angle path of the cable and automatically adjusts the tension to a balanced state.

[0032] After the cable is wound out from the upper fixed guide wheel 407, it will be guided into the hollow tube by the guide rubber wheel. At this time, the brush at the end of the hollow tube will perform a preliminary cleaning of the cable surface to remove large dust particles.

[0033] This embodiment, by setting up a cable feeding mechanism 4, utilizes the interaction between the lower floating guide wheel 406 and the counterweight block 408. When the feeding speed fluctuates, the lower floating guide wheel 406 will automatically rise and fall to change the winding path, always maintaining constant tension. Compared with electronic feedback control, this structure does not require sensors and complex algorithms, has a more direct response, lower cost, and more stable operation. In addition, by setting up a cable feeding mechanism 4, this embodiment utilizes the interaction between the hollow tube and the brush. Before the cable enters the test chamber 1, it is first cleaned by the brush to remove large particles of dust adhering to the surface. At the same time, the guide rubber wheel ensures that the cable enters the avoidance groove 301 at the correct angle, preventing scratches caused by friction with the edge of the avoidance groove 301, and providing a clean and intact cable surface for subsequent accurate testing.

[0034] Example 3 To maximize product appearance quality and facilitate subsequent sorting, based on the above embodiments, such as... Figure 2 and Figure 7 As shown, this embodiment includes a post-processing mechanism 5. Specifically, the post-processing mechanism 5 is provided on the other side of the test chamber 1. The post-processing mechanism 5 includes a heat insulation sleeve 501, which is fixedly installed on the outside of the clearance groove 301. A heating ring 502 is fixedly installed inside the heat insulation sleeve 501. An ink reservoir 503 and a CNC nozzle 504 are provided on the outside of the test chamber 1. The CNC nozzle 504 is connected to the ink reservoir 503 and is oriented towards the cable. The heating ring 502 is used for indentation recovery, and the CNC nozzle 504 is used for coding marking.

[0035] As can be seen from the above, after the cable passes through the discharge side clearance groove 301 of the test box 1, it will first pass through the heating ring 502. At this time, the heating ring 502 will be energized and heated (the temperature is generally controlled between 50-150℃, which can be adjusted according to the cable material), which will locally heat the indentation area, so that the cable insulation material will soften due to heat, and the indentation will gradually rebound and recover.

[0036] Furthermore, when the appearance inspection component 304 or the pressure test component 302 detects a defect, the control system records the defect location and calculates the delay based on the cable speed and distance. When the defect location reaches the CNC nozzle 504, the control system triggers the coding signal. Subsequently, the CNC nozzle 504 draws ink from the ink reservoir 503 and prints a mark on the cable surface. The mark can be a dot, line, number, or graphic to distinguish the defect type.

[0037] This embodiment integrates indentation recovery and defect marking by setting up a post-processing mechanism 5. First, the heating ring 502 will locally heat the cable that has passed the pressure resistance test, so that the insulation material softens and the indentation automatically rebounds. Then, the CNC nozzle 504 will accurately spray code at the defect position according to the test results, which can not only improve the product appearance quality, but also facilitate subsequent sorting and processing.

[0038] The control method of this invention is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the art. Furthermore, since this invention is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail here.

[0039] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0040] 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 and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cable quality testing device, comprising a test chamber (1), wherein a lighting cover (2) is detachably installed on the upper end of the test chamber (1), characterized in that: The test chamber (1) is equipped with an integrated test mechanism (3) inside, and a cable feeding mechanism (4) is provided on one side of the test chamber (1). The integrated testing mechanism (3) includes clearance slots (301) symmetrically opened on both sides of the test box (1). The test box (1) is equipped with a pressure resistance testing component (302) and an appearance inspection component (304) to continuously test the mechanical properties and surface quality of the cable. The pressure resistance testing component (302) is symmetrically equipped with cable support components (303) that support the cable upward. The cable feeding mechanism (4) includes a mounting bracket (401), on which an active traction wheel (402) is rotatably mounted. The active traction wheel (402) is driven by a traction motor (403). A clamping cylinder (405) is provided above the active traction wheel (402). A driven clamping wheel (404) is rotatably mounted at the piston rod end of the clamping cylinder (405). The driven clamping wheel (404) and the active traction wheel (402) are arranged to press against each other vertically. A lower floating guide wheel (406) that can be raised and lowered vertically is movably mounted on the mounting bracket (401). An upper fixed guide wheel (407) is provided on one side of the lower floating guide wheel (406). The upper fixed guide wheel (407) is fixedly mounted on the mounting bracket (401) and located above the lower floating guide wheel (406). A counterweight block (408) for providing constant tension is hung on the lower floating guide wheel (406).

2. The cable quality testing equipment according to claim 1, characterized in that: The compressive strength test assembly (302) includes a movable turntable (3021) rotatably installed inside the test chamber (1). A drive motor (3022) for driving the movable turntable (3021) to rotate is fixedly installed at the bottom of the inner cavity of the test chamber (1). An installation platform (3023) is fixedly installed on the movable turntable (3021). A servo electric cylinder (3024) is provided on the installation platform (3023). A test pressure block is installed at the end of the piston rod of the servo electric cylinder (3024). A support pad (3025) is fixedly installed on the movable turntable (3021).

3. The cable quality testing equipment according to claim 2, characterized in that: The support pad (3025) has a V-groove on the side facing the cable, and a pressure sensor is provided between the test block and the piston rod of the servo cylinder (3024).

4. The cable quality testing equipment according to claim 1, characterized in that: The appearance inspection component (304) includes an inspection ring (3041) and an industrial camera (3043). The inspection ring (3041) is fixedly installed inside the test box (1). The center of the inspection ring (3041) has an inspection channel (3042) for cables to pass through. Multiple industrial cameras (3043) are provided and are evenly distributed along the circumference of the inspection ring (3041).

5. The cable quality testing equipment according to claim 4, characterized in that: The detection ring (3041) is also equipped with a ring light source, which surrounds the detection channel (3042) and is located in front of the industrial camera (3043).

6. The cable quality testing equipment according to claim 4, characterized in that: A hollow round tube is fixedly installed on the feed side of the test chamber (1). One end of the hollow round tube is connected to the clearance groove (301), and a guide rubber wheel is movably installed on the other end of the hollow round tube.

7. The cable quality testing equipment according to claim 6, characterized in that: The hollow tube has brushes arranged in an array along the circumference at its end.

8. The cable quality testing equipment according to claim 1, characterized in that: On the other side of the test chamber (1), a post-processing mechanism (5) is provided. The post-processing mechanism (5) includes a heat insulation sleeve (501). The heat insulation sleeve (501) is fixedly installed on the outside of the clearance groove (301). A heating ring (502) is fixedly installed inside the heat insulation sleeve (501). An ink storage box (503) and a CNC nozzle (504) are provided on the outside of the test chamber (1). The CNC nozzle (504) is connected to the ink storage box (503) and is oriented towards the cable.

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