Hidden defect nondestructive testing equipment for vehicle chassis based on industrial endoscope

By using a wheeled trolley and a three-axis robotic arm equipped with an industrial endoscope unit, automated non-destructive testing of vehicle chassis is achieved, solving the problems of low testing efficiency and manual adjustment by operators in existing technologies, and realizing automation and flexibility of non-destructive testing.

CN224122490UActive Publication Date: 2026-04-14YANCHENG INST OF IND TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-11
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing vehicle chassis inspection methods are inefficient and require operators to manually adjust the probe position, which limits the application scenarios of the inspection, especially when the vehicle cannot be raised and the operator has to lie down to operate.

Method used

The system employs a wheeled trolley equipped with a three-axis robotic arm and attitude adjustment components, combined with an industrial endoscope unit, to achieve automated inspection. The attitude adjustment components and the tube winding disc components drive the flexible tubing into narrow areas, and the endoscope lens monitors and adjusts the detection attitude in real time.

Benefits of technology

Vehicle chassis inspection can be completed without operators, which enriches the application scenarios of inspection, improves inspection efficiency and flexibility, and adapts to non-destructive testing in narrow areas.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of vehicle detection, and discloses nondestructive detection equipment for hidden defects of a vehicle chassis based on an industrial endoscope, which comprises a wheel type walking trolley, the three-axis mechanical arm is installed on the wheel type walking trolley, and a posture adjusting assembly is installed at the free end of the three-axis mechanical arm; the industrial endoscope unit comprises an endoscope lens, a flexible hose, a pipe winding disc assembly and a handheld all-in-one machine, the endoscope lens is installed at one end of the flexible hose, the other end of the flexible hose is wound on the pipe winding disc assembly, and the data line is arranged in the flexible hose in a penetrating mode and electrically connected between the handheld all-in-one machine and the endoscope lens. The end, close to the lens of the endoscope, of the flexible hose is in transmission connection with the posture adjusting assembly, and the pipe winding disc assembly is installed on the wheel type walking trolley. The vehicle chassis detection can be completed without an operator, and the application scene of the vehicle chassis detection is enriched.
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Description

Technical Field

[0001] This utility model relates to the field of vehicle inspection technology, specifically to a non-destructive testing device for hidden defects in vehicle chassis based on an industrial endoscope. Background Technology

[0002] As a crucial component of a vehicle, the chassis has a complex structure and is often located in concealed positions. After prolonged driving, the chassis may develop cracks, corrosion, or other hidden defects. Current chassis inspection methods primarily rely on manual visual inspection. After raising the vehicle, operators inspect the chassis in sections, which is inefficient. Furthermore, some hard-to-reach, narrow areas require disassembly of the chassis.

[0003] Industrial endoscopy technology has been widely used in the field of non-destructive testing in recent years. Through flexible probes and image acquisition systems, it can penetrate deep into narrow areas for observation. For example, Chinese patent document CN222337395U discloses an electronic industrial endoscope that can effectively help operators quickly diagnose vehicle chassis problems by accessing narrow areas.

[0004] However, most existing industrial endoscope-based inspection equipment is handheld, requiring operators to manually adjust the probe position by entering under the vehicle. When the vehicle cannot be raised, operators need to lie under the vehicle to operate, which undoubtedly limits the application scenarios of vehicle chassis inspection. Utility Model Content

[0005] To address the aforementioned problems, this utility model discloses a non-destructive testing device for hidden defects in vehicle chassis based on an industrial endoscope, comprising:

[0006] Wheeled walking vehicle;

[0007] A three-axis robotic arm is mounted on a wheeled walking vehicle, and an attitude adjustment component is installed at the free end of the three-axis robotic arm.

[0008] The industrial endoscope unit includes an endoscope lens, a flexible tube, a tube winding assembly, and a handheld all-in-one device. The endoscope lens is mounted on one end of the flexible tube, and the other end of the flexible tube is wound around the tube winding assembly. A data cable is passed through the flexible tube and electrically connected between the handheld all-in-one device and the endoscope lens. The end of the flexible tube near the endoscope lens is connected to the attitude adjustment assembly. The tube winding assembly is mounted on a wheeled trolley.

[0009] Preferably, the handheld all-in-one device includes a housing, a processor installed inside the housing, a display screen embedded on the surface of the housing and electrically connected to the processor, a data cable electrically connected to the processor, and a coil assembly electrically connected to the processor.

[0010] Preferably, the wheeled trolley, the three-axis robotic arm, and the attitude adjustment assembly are all electrically connected to the processor.

[0011] Preferably, the winding disc assembly includes:

[0012] Side support frames: Two sets of side support frames arranged side by side are fixedly installed on the top of the wheeled walking trolley;

[0013] The central rotating shaft is hollow and is rotatably mounted between two sets of side support frames. The tube winding disc is mounted on the central rotating shaft, and the flexible tube is wound around the tube winding disc assembly at the end away from the endoscope lens.

[0014] Motor 1 is mounted on one of the side support frames. The central shaft is mounted on the output end of Motor 1. The data cable passes through the central shaft from the end away from the motor and exits from the side end of the central shaft. Then it extends into the flexible tubing away from the end of the endoscope lens.

[0015] Preferably, the central rotating shaft has an opening 1 at the end away from the motor to facilitate the insertion of the data cable, and an opening 2 at the side end of the central rotating shaft to facilitate the exit of the data cable. Both opening 1 and opening 2 are connected inside the central rotating shaft.

[0016] Preferably, the attitude adjustment component includes:

[0017] Adjustment plate, which is fixedly installed at the free end of the three-axis robotic arm;

[0018] The adjusting cylinder and the adjusting motor are distributed opposite each other on both sides of the adjusting circular plate. The output end of the adjusting motor passes through the center end of the adjusting circular plate and is connected to the adjusting cylinder. The flexible hose near the end of the endoscope lens passes through the adjusting cylinder.

[0019] Preferably, the side pressure tube is mounted on the top of the wheeled trolley via a rotating seat. The side pressure tube is distributed on the side of the tube winding disc away from the three-axis robotic arm. The end of the side pressure tube away from the rotating seat is attached to the flexible hose wound around the tube winding disc. A spring connects the side pressure tube and the trolley.

[0020] Preferably, the motor is electrically connected to the processor.

[0021] Preferably, the motor is electrically connected to the processor.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0023] This invention provides a non-destructive testing device for hidden defects in vehicle chassis based on an industrial endoscope. It allows for chassis inspection without operator intervention, enriching the application scenarios for vehicle chassis inspection. A wheeled trolley moves under the vehicle, and the endoscope lens monitors its position in real time. Once the trolley reaches a preset position, it stops. Then, a three-axis robotic arm operates, driving a posture adjustment component mounted on its free end and a flexible hose connected to the posture adjustment component towards the inspection position on the vehicle chassis. The posture adjustment component adjusts the posture of the endoscope lens. When penetrating narrow areas, a coiled tube assembly operates, moving the flexible hose closer to the endoscope lens into the narrow area. The posture adjustment component then adjusts the pitch angle of the flexible hose near the endoscope lens, thus adjusting the endoscope lens's detection posture. Attached Figure Description

[0024] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 This is the front view of the present invention;

[0026] Figure 2 This is a control principle diagram of the present invention;

[0027] Figure 3 This is a top view of the present invention;

[0028] Figure 4 This is a schematic diagram of the central rotating shaft structure of this utility model.

[0029] In the diagram: 10. Wheeled trolley; 11. Three-axis robotic arm; 12. Industrial endoscope unit; 13. Endoscope lens; 14. Flexible tubing; 15. Tube winding disc assembly; 16. Handheld all-in-one device; 17. Posture adjustment assembly; 18. Side support frame; 19. Central pivot; 20. Tube winding disc; 21. Motor 1; 22. Opening 1; 23. Opening 2; 24. Adjusting disc; 25. Adjusting cylinder; 26. Adjusting motor; 27. Side pressure tube rod; 28. Rotating seat; 29. ​​Spring. Detailed Implementation

[0030] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0031] Example

[0032] The present invention will now be further described with reference to the accompanying drawings.

[0033] like Figures 1 to 4 As shown in the figure, this embodiment provides a non-destructive testing device for hidden defects in vehicle chassis based on an industrial endoscope, comprising:

[0034] 10 wheeled mobile carts;

[0035] A three-axis robotic arm 11 is mounted on a wheeled walking vehicle 10, and an attitude adjustment component 17 is mounted on the free end of the three-axis robotic arm 11.

[0036] The industrial endoscope unit 12 includes an endoscope lens 13, a flexible hose 14, a tube winding assembly 15, and a handheld all-in-one device 16. The endoscope lens 13 is mounted on one end of the flexible hose 14, and the other end of the flexible hose 14 is wound around the tube winding assembly 15. A data cable passes through the flexible hose 14 and is electrically connected between the handheld all-in-one device 16 and the endoscope lens 13. The end of the flexible hose 14 near the endoscope lens 13 is connected to the attitude adjustment assembly 17. The tube winding assembly 15 is mounted on a wheeled trolley 10.

[0037] The working principle and beneficial effects of the above technical solution are as follows:

[0038] This utility model discloses a non-destructive testing device for hidden defects in vehicle chassis based on an industrial endoscope. A wheeled trolley 10 moves under the vehicle, and the endoscope lens 13 monitors the movement position of the wheeled trolley 10 in real time. After the wheeled trolley 10 reaches a preset position, it stops working. Then, the three-axis robotic arm 11 works, thereby driving the attitude adjustment component 17 installed at its free end and the flexible hose 14 connected to the attitude adjustment component 17 to move towards the position to be tested on the vehicle chassis. The attitude adjustment component 17 adjusts the attitude of the endoscope lens 13. When it is necessary to penetrate into a narrow area, the tube winding assembly 15 works, thereby driving the flexible hose 14 near the endoscope lens 13 to probe into the narrow area. The attitude adjustment component 17 works to adjust the pitch angle of the flexible hose 14 near the endoscope lens 13, thereby adjusting the detection attitude of the endoscope lens 13. This invention provides a non-destructive testing device for hidden defects in vehicle chassis based on an industrial endoscope, which can complete the inspection of vehicle chassis without the need for operators, thus enriching the application scenarios of vehicle chassis inspection.

[0039] The endoscope lens 13 features a built-in adjustable brightness LED ring light to ensure clear visibility of the examination area. The endoscope lens 13 uses a 1080p high-definition camera and has built-in focusing functionality. The flexible catheter is available in lengths between 1.5 and 3 meters, adjustable to suit specific needs.

[0040] In one embodiment, the handheld all-in-one device 16 includes a housing, a processor installed inside the housing, a display screen embedded on the surface of the housing and electrically connected to the processor, a data cable electrically connected to the processor, and a coil assembly 15 electrically connected to the processor.

[0041] The working principle of the above technical solution is as follows:

[0042] The processor is an embedded industrial-grade processor that supports real-time image processing. The display is a 10-inch touchscreen with a resolution of 1920*1080 and an anti-glare coating.

[0043] In one embodiment, the wheeled vehicle 10, the three-axis robotic arm 11, and the attitude adjustment assembly 17 are all electrically connected to the processor.

[0044] The beneficial effects of the above technical solution are as follows:

[0045] The wheeled trolley 10, the three-axis robotic arm 11, and the attitude adjustment assembly 17 are all electrically connected to the processor, enabling integrated control via a display screen.

[0046] In one embodiment, the coil assembly 15 includes:

[0047] Side support frame 18, two sets of side support frames 18 arranged side by side are fixedly installed on the top of the wheeled walking trolley 10;

[0048] The central rotating shaft 19 is a hollow structure and is rotatably mounted between two sets of side support frames 18. The tube winding disc 20 is mounted on the central rotating shaft 19, and the flexible tube 14 is wound around the tube winding disc assembly 15 at the end away from the endoscope lens 13.

[0049] Motor 21 is mounted on one of the side support frames 18. The central shaft 19 is mounted on the output end of motor 21. The data cable passes through the central shaft 19 from the end away from motor 21, passes through the central shaft 19, and exits from the side end of the central shaft 19. Then it extends into the flexible hose 14 from the end away from the endoscope lens 13.

[0050] The working principle and beneficial effects of the above technical solution are as follows:

[0051] When it is necessary to access narrow areas, motor 21 operates, thereby driving the central shaft 19 mounted at its output end to rotate between the two sets of side support frames 18. The central shaft 19 drives the winding disc 20 mounted thereon as follows: Figure 1 After being rotated clockwise, the flexible hose 14, which is wrapped around the tube plate 20, enters the narrow area in the direction of the attitude adjustment component 17. The attitude adjustment component 17 can adjust the insertion direction of the endoscope lens 13 to guide the flexible hose 14 to drive the endoscope lens 13 into a preset position in the narrow area.

[0052] Conversely, the central rotating shaft 19 drives the winding disc 20 mounted thereon, as... Figure 1 After being rotated counterclockwise as shown, the flexible hose 14 is rewound onto the winding disc 20, and the flexible hose 14 drives the endoscope lens 13 out of the narrow area.

[0053] In one embodiment, the central shaft 19 has an opening 22 at the end away from the motor 21 to facilitate the insertion of a data cable, and an opening 23 at the side end of the central shaft 19 to facilitate the exit of a data cable. Both the opening 22 and the opening 23 are connected inside the central shaft 19.

[0054] The working principle and beneficial effects of the above technical solution are as follows:

[0055] The end of the flexible tube 14 furthest from the endoscope lens 13 can be fixedly connected to the second opening 23 via a connector. The data cable passes through the first opening 22 and exits through the second opening 23, then passes right into the flexible tube 14. The first opening 22 is located at the end of the central shaft 19 furthest from the motor 21. This way, when the motor 21 drives the central shaft 19 to rotate, the data cable will not cause motion interference to the rotation of the central shaft 19.

[0056] In one embodiment, the attitude adjustment component 17 includes:

[0057] Adjustment plate 24 is fixedly installed at the free end of the three-axis robotic arm 11;

[0058] The adjusting cylinder 25 and the adjusting motor 26 are distributed opposite to each other on both sides of the adjusting circular plate 24. The output end of the adjusting motor 26 passes through the center end of the adjusting circular plate 24 and is connected to the adjusting cylinder 25. The flexible hose 14 is inserted into the adjusting cylinder 25 near the end of the endoscope lens 13.

[0059] The working principle and beneficial effects of the above technical solution are as follows:

[0060] When it is necessary to adjust the insertion direction of the endoscope lens 13, the adjustment motor 26 operates, thereby driving the adjustment cylinder 25 installed at the output end of the adjustment motor 26 to rotate on the adjustment disc 24, thereby changing the insertion direction of the flexible tube 14 near the end of the endoscope lens 13.

[0061] In one embodiment, the side pressure rod 27 is mounted on the top of the wheeled trolley 10 via a rotating seat 28. The side pressure rod 27 is distributed on the side of the winding disc 20 away from the three-axis robotic arm 11. The end of the side pressure rod 27 away from the rotating seat 28 is attached to the flexible hose 14 wound around the winding disc 20. The spring 29 is connected between the side pressure rod 27 and the trolley 10.

[0062] The working principle and beneficial effects of the above technical solution are as follows:

[0063] The end of the side pressure rod 27 away from the rotating seat 28 is attached to the flexible hose 14 wound around the coil 20. When the coil 20 is rotated clockwise, the flexible hose 14 wound around the coil 20 enters the narrow area in the direction of adjustment of the adjusting cylinder 25. Under the pressure of the side pressure rod 27, the unwound part of the flexible hose 14 enters as much as possible in the direction of adjustment of the adjusting cylinder 25.

[0064] When the coil 20 rotates counterclockwise, the pressure of the side pressure rod 27 also allows the flexible hose 14 to be neatly wound on the coil 20.

[0065] In one embodiment, motor 21 is electrically connected to the processor.

[0066] The working principle of the above technical solution is as follows:

[0067] Motor 21 is electrically connected to the processor, thereby enabling integrated control of the winding disc assembly 15.

[0068] In one embodiment, the regulating motor 26 is electrically connected to the processor.

[0069] The working principle of the above technical solution is as follows:

[0070] The regulating motor 26 is electrically connected to the processor, thereby realizing integrated control of the attitude adjustment component 17.

[0071] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A non-destructive testing device for hidden defects in vehicle chassis based on an industrial endoscope, characterized in that, include: A wheeled trolley (10) and a three-axis robotic arm (11) are mounted on the wheeled trolley (10). The free end of the three-axis robotic arm (11) is equipped with an attitude adjustment component (17). An industrial endoscope unit (12) includes an endoscope lens (13), a flexible hose (14), a tube winding assembly (15), and a handheld all-in-one device (16). The endoscope lens (13) is mounted on one end of the flexible hose (14), and the other end of the flexible hose (14) is wound around the tube winding assembly (15). A data cable is passed through the flexible hose (14) and electrically connected between the handheld all-in-one device (16) and the endoscope lens (13). The end of the flexible hose (14) near the endoscope lens (13) is connected to the attitude adjustment component (17). The tube winding assembly (15) is mounted on the wheeled trolley (10).

2. The non-destructive testing equipment for hidden defects in vehicle chassis based on an industrial endoscope according to claim 1, characterized in that, The handheld all-in-one device (16) includes a housing, a processor installed inside the housing, a display screen embedded on the surface of the housing and electrically connected to the processor, a data cable electrically connected to the processor, and a coil assembly (15) electrically connected to the processor.

3. The non-destructive testing equipment for hidden defects in vehicle chassis based on an industrial endoscope according to claim 2, characterized in that, The wheeled trolley (10), the three-axis robotic arm (11), and the attitude adjustment assembly (17) are all electrically connected to the processor.

4. The non-destructive testing equipment for hidden defects in vehicle chassis based on an industrial endoscope according to claim 1, characterized in that, The tube winding assembly (15) includes: side support frames (18), two sets of side support frames (18) arranged side by side are fixedly installed on the top of the wheeled trolley (10); the central rotating shaft (19) is a hollow structure, the central rotating shaft (19) is rotatably installed between the two sets of side support frames (18), the tube winding assembly (20) is installed on the central rotating shaft (19), and the flexible hose (14) is wound around the tube winding assembly (15) at the end away from the endoscope lens (13); the motor (21) is installed on one of the sets of side support frames (18), the central rotating shaft (19) is installed at the output end of the motor (21), the data cable passes through the central rotating shaft (19) from the end away from the motor (21), passes through the central rotating shaft (19), and exits from the side end of the central rotating shaft (19), and then extends into the end of the flexible hose (14) away from the endoscope lens (13).

5. The non-destructive testing equipment for hidden defects in vehicle chassis based on an industrial endoscope according to claim 4, characterized in that, The central shaft (19) has an opening (22) at the end away from the motor (21) to facilitate the insertion of the data cable, and an opening (23) at the side end of the central shaft (19) to facilitate the exit of the data cable. Both the opening (22) and the opening (23) are connected inside the central shaft (19).

6. The non-destructive testing equipment for hidden defects in vehicle chassis based on an industrial endoscope according to claim 1, characterized in that, The attitude adjustment assembly (17) includes: an adjustment disc (24) fixedly installed on the free end of the three-axis robotic arm (11); an adjustment cylinder (25) and an adjustment motor (26) are distributed opposite to each other on both sides of the adjustment disc (24); the output end of the adjustment motor (26) passes through the center end of the adjustment disc (24) and is connected to the adjustment cylinder (25); and the flexible hose (14) near the end of the endoscope lens (13) passes through the adjustment cylinder (25).

7. The non-destructive testing equipment for hidden defects in vehicle chassis based on an industrial endoscope according to claim 4, characterized in that, The side pressure tube rod (27) is installed on the top of the wheeled walking trolley (10) via the rotating seat (28). The side pressure tube rod (27) is distributed on the side of the winding disc (20) away from the three-axis robotic arm (11). The end of the side pressure tube rod (27) away from the rotating seat (28) is attached to the flexible hose (14) wound on the winding disc (20). The spring (29) is connected between the side pressure tube rod (27) and the wheeled walking trolley (10).

8. The non-destructive testing equipment for hidden defects in vehicle chassis based on an industrial endoscope according to claim 4, characterized in that, Motor 1 (21) is electrically connected to the processor.

9. The non-destructive testing equipment for hidden defects in vehicle chassis based on an industrial endoscope according to claim 6, characterized in that, The regulating motor (26) is electrically connected to the processor.

Citation Information

Patent Citations

  • Electronic industrial endoscope

    CN222337395U