An automatic detection device for carbon fiber wheel hubs

Abstract

The application discloses an automatic detection device for carbon fiber hubs and belongs to the technical field of carbon fiber hub detection. The device comprises a self-detection sealed cabinet, a carbon fiber hub detection box and a dehumidification box. The inner bottom of the carbon fiber hub detection box is fixedly provided with a centering air-permeable disc for assembling carbon fiber hubs. The self-detection sealed cabinet, the independent detection box and the communicating dehumidification box are integrated to build a detection space which is isolated from the external environment and in which the humidity can be stably maintained. The attitude adjusting system which is composed of a servo motor driving in a ring driving and servo adjusting mechanism and a plurality of groups of servo telescopic rods in linkage can drive the terminal composite probe detection mechanism to adaptively adhere to hubs with different surface curvatures, thereby ensuring the basic matching of the relative position and angle between the detection execution unit and the hub surface and providing a preliminary guarantee for obtaining an effective ultrasonic signal transmission path.

Description

Technical Field

[0001] This invention relates to the field of carbon fiber wheel hub inspection technology, and more specifically, to an automatic inspection device for carbon fiber wheel hubs. Background Technology

[0002] With the continuous improvement of high-end bicycle manufacturing technology, carbon fiber composite wheel hubs have become a core component of high-performance bicycles due to their excellent strength-to-weight ratio. To ensure their long-term safety, non-destructive testing must be carried out on any minor defects such as delamination that may exist inside the wheel hub during the production process. This is generally done using ultrasonic phased array testing technology. The operator first applies a uniform layer of water-based gel manually or using a simple spraying device to a specific testing area of ​​the wheel hub to be inspected. Then, the robotic arm drives the probe to scan along a predetermined path, and generates a test image based on the echo signal to determine the defects.

[0003] However, relying on the detection mode with pre-applied coupling agent can lead to significant fluctuations in humidity in actual mass production environments, especially in humid southern regions or workshops with limited ventilation. The coupling agent layer pre-applied to the wheel hub surface will continuously exchange with water molecules in the air while waiting for detection or scanning. In high humidity environments, it will absorb moisture and become excessively diluted, resulting in uneven coating thickness. If placed in a hot drying environment, the coupling agent may experience surface moisture evaporation, forming localized dryness or generating microbubbles. This can cause abnormal changes in acoustic impedance, energy attenuation, and interface scattering when ultrasonic waves are transmitted to the wheel hub, leading to false alarms.

[0004] The root cause lies in the fact that the core limitation of existing detection systems is the inherent contradiction between static coupling and dynamic environment. Although the probe movement is automated, the coupling agent application process is discrete and pre-completed, forming an open and uncontrollable detection interface that cannot truly reflect the evolution of wheel hub performance. Ultimately, this makes the initiative and accuracy of the quality control process passive. Summary of the Invention

[0005] In view of the problems existing in the prior art, the purpose of the present invention is to provide an automatic detection device for carbon fiber wheel hubs, which aims to solve the above-mentioned technical problems.

[0006] To solve the above problems, the present invention adopts the following technical solution.

[0007] An automatic inspection device for carbon fiber wheel hubs includes a self-inspection sealed cabinet. An independent carbon fiber wheel hub inspection box is configured inside the self-inspection sealed cabinet, and a connected dehumidification box is configured at the bottom of the carbon fiber wheel hub inspection box to maintain the inspection humidity inside the inspection box. A central vent plate for assembling carbon fiber wheel hubs is fixedly installed at the bottom of the inner side of the carbon fiber wheel hub inspection box, and a first gantry crane is fixedly installed on the surface of the central vent plate. A ring drive servo adjustment mechanism is configured on the first gantry crane, located directly above the central vent plate. The ring drive servo adjustment mechanism is used to drive two sets of symmetrically arranged composite probe inspection mechanisms to adjust their posture so as to adaptively conform to the bent surface of the carbon fiber wheel hub.

[0008] The composite probe detection mechanism includes a runway-shaped cavity frame that provides support, a first auxiliary testing mechanism and a second auxiliary testing mechanism respectively disposed on both ends of the runway-shaped cavity frame, and an ultrasonic phased array detection probe disposed in the middle of the runway-shaped cavity frame.

[0009] The second auxiliary testing mechanism provides driving force and synchronously drives the fourth and third auxiliary testing mechanisms.

[0010] The fourth auxiliary testing mechanism is located on the outer edge of the runway-shaped cavity frame and is used to pre-clean the surface of the carbon fiber hub before the ultrasonic phased array detection probe is detected.

[0011] The third auxiliary testing mechanism is disposed on the second auxiliary testing mechanism and is used to store the coupling agent and to stir and conduct heat to maintain its performance uniformity; the third auxiliary testing mechanism is connected to the first auxiliary testing mechanism and is used to supply the coupling agent to the front side of the detection path of the ultrasonic phased array detection probe in real time.

[0012] The first auxiliary testing mechanism is used to receive the coupling agent supplied by the third auxiliary testing mechanism and uniformly coat the coupling agent on the surface of the carbon fiber wheel hub in front of the detection path to form a thin layer of coupling agent with controllable thickness.

[0013] As a further aspect of the present invention: the ring drive servo adjustment mechanism includes a first servo motor fixedly installed at the middle position of the top of the first gantry crane. A shaft hanger is fixedly installed on the output end of the first servo motor. Two sets of symmetrically arranged first servo telescopic rods are hinged to the bottom of the shaft hanger. A second servo telescopic rod is hinged to the side of each set of first servo telescopic rods. The other end of the second servo telescopic rod is hinged to the side wall of the shaft hanger to obliquely suspend the first servo telescopic rod. Both the first servo telescopic rod and the second servo telescopic rod can extend and retract along their own length direction. The first servo telescopic rod is pulled by the second servo telescopic rod to adjust its posture to adapt to the flat state of the carbon fiber wheel hub and the bent state of the carbon fiber wheel hub.

[0014] As a further aspect of the present invention: the composite probe detection mechanism further includes an assembly frame fixedly connected to the middle position of the surface of the runway-shaped cavity frame, and an ultrasonic phased array detection probe is assembled through the assembly frame. A servo multi-axis head is assembled on the top of each assembly frame and is connected to the output end of the first servo telescopic rod through the servo multi-axis head. The second auxiliary testing mechanism includes a support frame fixedly connected to the outside of the assembly frame, and a lifting frame is fixedly connected to the top of the support frame.

[0015] As a further aspect of the present invention: the second auxiliary measuring mechanism further includes a second servo motor fixedly installed on the rear side of the lifting frame, an extension rod fixedly installed on the output end of the second servo motor, a second gear disk fixedly installed at the middle position of the surface of the extension rod, and a third gear disk fixedly installed at the end of the extension rod, the third gear disk being flush with the racetrack-shaped cavity frame.

[0016] As a further aspect of the present invention: the fourth auxiliary testing mechanism includes a racetrack-shaped track sleeve movably mounted on the outer edge of the racetrack-shaped cavity frame. A meshing toothed sleeve is fixedly connected to the outer edge of the racetrack-shaped track sleeve, and the side of the meshing toothed sleeve meshes with the third gear disk. A cleaning strip is pasted and installed on the bottom surface of the racetrack-shaped track sleeve, and the bottom surface of the cleaning strip protrudes downward. The carbon fiber wheel hub is pre-treated by rotating the extension rod at the output end of the second servo motor in a rotating posture.

[0017] As a further embodiment of the present invention: the third auxiliary testing mechanism includes a storage cylinder fixedly installed on the front side of the lifting frame. The inner bottom of the storage cylinder is provided with a concave annular groove. A pivot rod is movably installed at the center of the storage cylinder, and a corresponding sealing ring is provided at the movably installed end. A stirring rack is fixedly installed on one side of the pivot rod that extends into the storage cylinder. A heat-conducting scraper plate is fixedly connected to the outer edge of the stirring rack and adheres to the inner wall of the storage cylinder. The inner wall of the storage cylinder is provided with a friction coating. Two external delivery conduits are connected to the bottom of the concave annular groove.

[0018] As a further embodiment of the present invention: the third auxiliary measuring mechanism further includes a first gear disk fixedly installed on the end of the shaft rod extending out of the storage cylinder, and the side of the first gear disk meshes with the side of the second gear disk. A downwardly extending cleaning disc is fixedly installed at the bottom of the first gear disk, and an adsorption cotton block is disposed on the end face of the cleaning disc, and several heat-conducting wires are connected to the adsorption cotton block.

[0019] As a further aspect of the present invention: the first auxiliary testing mechanism includes a second gantry crane fixedly installed on the upper surface of the runway-shaped cavity frame. A third servo telescopic rod is fixedly installed at the top middle position of the second gantry crane. A round-headed pressure block is fixedly installed on the telescopic end of the third servo telescopic rod. Several extended side plates are fixedly arranged in a circular pattern on the outer edge of the round-headed pressure block. A sliding limit rod is slidably installed on the surface of each extended side plate. A circular ring pressure cover is sleeved on the outside of the round-headed pressure block through several sliding limit rods. A return spring sleeve is sleeved on the outside of each sliding limit rod. The return spring sleeve makes the circular ring pressure cover always have a downward pushing motion tendency.

[0020] As a further aspect of the present invention: a plurality of first one-way valve tubes are sequentially fixedly connected to the inner annular surface of the racetrack-shaped cavity frame near the round head pressure block, and an annular reset sleeve is assembled on the inner annular surface of the racetrack-shaped cavity frame through the first one-way valve tubes. The center of the annular reset sleeve is aligned vertically with the center of the round head pressure block, and a plurality of second one-way valve tubes are fixedly assembled in a circumferential manner on the inner annular surface of the annular reset sleeve.

[0021] As a further aspect of the present invention: two cavity support conduits connected to the bottom of the storage cylinder are fixedly connected to the racetrack-shaped cavity frame near the side of the annular reset rubber sleeve. The external delivery conduit extends into the inner cavity of the racetrack-shaped cavity frame through the cavity support conduits and is connected to each of the first one-way valve pipes. A scanning beam is also fixedly installed on the racetrack-shaped cavity frame between the ultrasonic phased array detection probe and the round-headed pressure block.

[0022] Compared with the prior art, the technical solution provided by the present invention has at least the following beneficial effects:

[0023] (1) By integrating a self-testing sealed cabinet, an independent testing box and a connected dehumidification box, a testing space that is isolated from the external environment and whose humidity can be stably maintained is constructed. Through the servo motor driven in the ring drive servo adjustment mechanism and the attitude adjustment system composed of multiple sets of servo telescopic rods, the composite probe testing mechanism at its end can adaptively fit the hub with different surface curvatures, ensuring the basic matching of the relative position and angle between the testing execution unit and the hub surface, and providing a preliminary guarantee for obtaining an effective ultrasonic signal transmission path.

[0024] (2) The fourth auxiliary testing mechanism on the integrated composite probe detection mechanism uses a servo motor-driven gear and track transmission to make the cleaning strip mechanically clean the surface of the wheel hub in front of the ultrasonic probe scanning path to remove the attached contaminants. At the same time, the same power source drives the stirring mechanism in the storage cylinder through the gear system to continuously stir and moderately heat the coupling agent to maintain its uniform and stable performance. The stirred coupling agent is transported to the annular reset sleeve of the first auxiliary testing mechanism through the conduit system for temporary storage. When the mechanism moves to the test point, the servo telescopic rod in the first auxiliary testing mechanism drives the pressure block and pressure cover assembly to press down, squeezing the coupling agent evenly from the reset sleeve and flattening it on the cleaned wheel hub surface to form a thin layer of coupling agent with controllable thickness. The scanning beam performs real-time optical monitoring to avoid abnormal acoustic impedance caused by performance changes due to environmental factors during the waiting period of the coupling agent. Attached Figure Description

[0025] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the invention and, together with the specification, further serve to explain the principles of the invention and enable those skilled in the art to practice and use the invention.

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 This is a schematic diagram of the structure of the first gantry crane of the present invention;

[0028] Figure 3 This is a schematic diagram of the ring drive servo adjustment mechanism of the present invention;

[0029] Figure 4 This is a partial structural schematic diagram of the composite probe detection mechanism of the present invention;

[0030] Figure 5 This is a schematic diagram of the structure of the second auxiliary testing mechanism of the present invention;

[0031] Figure 6 This is a schematic diagram of the structure of the third auxiliary testing mechanism of the present invention;

[0032] Figure 7 This is a schematic diagram of the composite probe detection mechanism of the present invention;

[0033] Figure 8 This is a schematic diagram of the structure of the first auxiliary testing mechanism of the present invention;

[0034] Figure 9 This is a schematic diagram of the fourth auxiliary testing mechanism of the present invention.

[0035] Figure Labels

[0036] 1. Self-testing sealed cabinet; 2. Carbon fiber wheel hub testing box; 3. Dehumidification box; 4. Centered venting plate;

[0037] 5. First gantry crane;

[0038] 6. Ring drive servo adjustment mechanism; 61. First servo motor; 62. Shaft hanger; 63. First servo telescopic rod; 64. Second servo telescopic rod;

[0039] 7. Composite probe detection mechanism; 71. Racetrack-shaped cavity frame; 72. Assembly frame; 73. Ultrasonic phased array detection probe; 74. Servo multi-axis sleeve; 75. Cavity support conduit; 76. First one-way valve tube; 77. Circular reset rubber sleeve; 78. Second one-way valve tube; 79. Scanning beam;

[0040] 8. First auxiliary testing mechanism; 81. Second gantry crane; 82. Third servo telescopic rod; 83. Round head pressure block; 84. Extended side plate; 85. Sliding limit rod; 86. Circular pressure cover; 87. Reset spring sleeve;

[0041] 9. Second auxiliary measuring mechanism; 91. Support frame; 92. Lifting frame; 93. Second servo motor;

[0042] 94. Third auxiliary testing mechanism; 941. Storage cylinder; 942. Concave annular groove; 943. External delivery conduit; 944. Shaft rotating rod; 945. Stirring rack; 946. Heat-conducting scraper; 947. First gear disk; 948. Cleaning disk; 949. Absorbent cotton block; 9410. Heat-conducting wire;

[0043] 95. Extending rod; 96. Second gear disc; 97. Third gear disc;

[0044] 10. Fourth auxiliary testing mechanism; 101. Runway-shaped track sleeve; 102. Engaging tooth sleeve; 103. Cleaning strip.

[0045] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0046] The automatic detection device for carbon fiber wheel hubs provided by the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art can use other alternative methods to implement some known technologies; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0047] like Figures 1 to 9 As shown, this embodiment of the invention provides an automatic detection device for carbon fiber wheel hubs, including a self-detection sealed cabinet 1. The self-detection sealed cabinet 1 is equipped with an independent carbon fiber wheel hub detection box 2, and a dehumidification box 3 is configured at the bottom of the carbon fiber wheel hub detection box 2 to maintain the detection humidity inside the carbon fiber wheel hub detection box 2. A central vent plate 4 for assembling carbon fiber wheel hubs is fixedly installed at the bottom of the inner side of the carbon fiber wheel hub detection box 2, and a first gantry hanger 5 is fixedly installed on the surface of the central vent plate 4. A ring drive servo adjustment mechanism 6 is configured on the first gantry hanger 5, located directly above the central vent plate 4, and two sets of symmetrically arranged composite probe detection mechanisms 7 are set through the ring drive servo adjustment mechanism 6 to fit against the surface of the carbon fiber wheel hub for circumferential detection.

[0048] Each set of composite probe detection mechanisms 7 includes a runway-shaped cavity frame 71 that provides support, a first auxiliary testing mechanism 8 and a second auxiliary testing mechanism 9 respectively disposed on both sides of the runway-shaped cavity frame 71, and an ultrasonic phased array detection probe 73 disposed in the middle of the runway-shaped cavity frame 71.

[0049] Each of the second auxiliary testing mechanisms 9 is provided with a third auxiliary testing mechanism 94 for storing coupling agent, and the third auxiliary testing mechanism 94 is connected to the first auxiliary testing mechanism 8 to supply the stored coupling agent to the front side of the detection path of the ultrasonic phased array detection probe 73 in real time.

[0050] To address the technical problem in existing ultrasonic phased array testing where acoustic performance is easily destabilized by humidity and temperature changes, leading to missed detections, the above-mentioned technical solution is adopted. This solution mainly consists of a self-testing sealed cabinet 1, a carbon fiber wheel hub testing box 2, a dehumidification box 3, a centrally located vent plate 4, a first gantry crane 5, a ring drive servo adjustment mechanism 6, a composite probe testing mechanism 7, a first auxiliary testing mechanism 8, a second auxiliary testing mechanism 9, and a third auxiliary testing mechanism 94. The self-testing sealed cabinet 1 serves as the overall frame structure, and its internal dehumidification box 3 communicates with the carbon fiber wheel hub testing box 2, forming a humidity control system. This is a novel approach in existing technologies. The electronically controlled humidity control device maintains the humidity inside the carbon fiber wheel hub testing box 2 within a preset stable range through the continuous dehumidification function of the dehumidification box 3. In existing technologies, this is generally maintained at a relative humidity of 50%, ensuring the stability of the testing environment. The centrally located ventilated plate 4, connecting the dehumidification box 3 and the carbon fiber wheel hub testing box 2, creates an airflow channel between them, allowing the dehumidification effect of the dehumidification box 3 to evenly penetrate into the interior of the carbon fiber wheel hub testing box 2. This allows the carbon fiber wheel hub to undergo necessary gas exchange during testing, preventing wheel hub structural deformation or testing errors caused by a sealed environment. The configured first gantry crane 5 provides the mounting base for the ring drive servo adjustment mechanism 6, which, through its drive function, adjusts the testing position and angle of the two symmetrically arranged composite probe testing mechanisms 7. The composite probe detection mechanism 7 includes a runway-shaped cavity frame 71 that provides support. The structural design of the runway-shaped cavity frame 71 ensures the smooth insertion and extension of subsequent conduits, allowing for interference-free delivery of the coupling agent and forming a coupling agent supply channel. During operation, the third auxiliary testing mechanism 94 can supply the stored coupling agent to the front of the detection path of the ultrasonic phased array detection probe 73 in real time through the first auxiliary testing mechanism 8, instead of using a pre-applied discrete coupling agent application method. This ensures that the ultrasonic phased array detection probe 73 always obtains a uniform and stable coupling agent layer during the detection process, avoiding acoustic impedance abnormalities, energy attenuation, and interface scattering caused by uneven coupling agent layer thickness or local drying. It constructs a closed and controllable humidity environment and a real-time coupling agent supply system, transforming the coupling agent application process from a discrete, pre-completed static mode to a continuous, dynamic, real-time supply mode, keeping the detection interface in a controllable state. This significantly improves the accuracy and reliability of ultrasonic phased array detection and avoids detection omissions caused by environmental factors.

[0051] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9As shown, the ring drive servo adjustment mechanism 6 includes a first servo motor 61 fixedly installed at the middle position of the top of the first gantry crane 5. A shaft hanging column 62 is fixedly installed on the output end of the first servo motor 61. Two sets of symmetrically arranged first servo telescopic rods 63 are hinged to the bottom of the shaft hanging column 62, and a second servo telescopic rod 64 is hinged to the side of each set of first servo telescopic rods 63. The other end of the second servo telescopic rod 64 is hinged to the side wall of the shaft hanging column 62 to obliquely suspend the first servo telescopic rod 63. Both the first servo telescopic rod 63 and the second servo telescopic rod 64 can extend and retract along their own length direction, so that the first servo telescopic rod 63 can be adjusted in attitude by driving the extension and retraction of the second servo telescopic rod 64 to adapt to the flat state of the carbon fiber wheel hub and the bent state of the carbon fiber wheel hub.

[0052] The configured ring-drive servo adjustment mechanism 6 is used for adaptive detection of carbon fiber wheel hubs of different shapes to avoid detection mismatch due to differences in wheel hub shape. The first servo motor 61 is a servo-driven motor module in the prior art, which can drive the output shaft hanger 62 to rotate servo during operation. By controlling the extension and retraction of the second servo telescopic rod 64, the first servo telescopic rod 63 can be driven to rotate around its hinge point with the shaft hanger 62. When the second servo telescopic rod 64 extends, it pushes the first servo telescopic rod 63 to retract inward around its hinge point. When the second servo telescopic rod 64 shortens, it pulls the first servo telescopic rod 63 to deflect outward around its hinge point. This allows the spatial orientation of the output end of the first servo telescopic rod 63 to be controllably adjusted, thereby adapting to carbon fiber wheel hubs with different surface shapes.

[0053] In actual testing, carbon fiber wheel hubs may exhibit two typical states: one is a flat wheel hub that has not undergone fatigue testing, with its test surface being horizontal or nearly horizontal; the other is a wheel hub that has undergone fatigue loading testing and has experienced structural bending, with its test surface being inclined or curved. If the probe holding part of the testing mechanism cannot be adjusted accordingly, it will lead to poor contact between the ultrasonic probe and the wheel hub surface, uneven coupling layer, and consequently, reduced sound wave transmission efficiency and distorted test signal. Therefore, through the coordinated extension and retraction of the first servo telescopic rod 63 and the second servo telescopic rod 64, which are independently controlled, the real-time dynamic adjustment of the suspension posture of the composite probe detection mechanism 7 is realized. When the hub surface is flat, each telescopic rod can be adjusted to make the probe axis perpendicular to the detection surface. When the hub bends, the system can drive the second servo telescopic rod 64 to extend and retract accordingly based on the real-time curvature data feedback, thereby causing the first servo telescopic rod 63 to deflect. This ensures that the probe always maintains a detection posture that is perpendicular to or optimally fitted to the local hub surface, thus overcoming the detection fit problem caused by changes in hub shape and ensuring the uniformity of the coupling agent layer and the consistency of the sound wave incident angle during ultrasonic phased array detection.

[0054] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 As shown, the composite probe detection mechanism 7 also includes an assembly frame 72 fixedly connected to the middle position of the surface of the runway-shaped cavity frame 71, and an ultrasonic phased array detection probe 73 is assembled through the assembly frame 72. A servo multi-axis head 74 is assembled on the top of the assembly frame 72 and is connected to the output end of the first servo telescopic rod 63 through the servo multi-axis head 74. The second auxiliary detection mechanism 9 includes a support frame 91 fixedly connected to the outside of the assembly frame 72, and a lifting frame 92 is fixedly connected to the top of the support frame 91.

[0055] The ultrasonic phased array detection probe 73 is a non-destructive testing element in the prior art, used to emit ultrasonic waves and receive echo signals from inside the carbon fiber wheel hub to identify defects such as delamination and voids inside the material. The assembly frame 72 provides mechanical fixation for the ultrasonic phased array detection probe 73. The servo multi-axis head 74 is a connecting component in the prior art that can realize multi-degree-of-freedom attitude electronic control adjustment. It integrates multiple micro servo drive units, which can perform precise deflection and fine adjustment of small angles in multiple directions according to control commands. For micro-unevennesses on the wheel hub surface or slight angular deviations that may remain after adjustment by the ring drive servo adjustment mechanism 6, further precise compensation is required. The servo multi-axis head 74 plays a role in this process. It receives commands from the control system and performs pitch and yaw micro-adjustments on the assembly frame 72 and the ultrasonic phased array detection probe 73 mounted on it.

[0056] The configured support frame 91 and the lifting frame 92 together form a rigid load-bearing platform. Its core function is to provide a stable and reliable installation foundation and support for the modules subsequently set on the second auxiliary testing mechanism 9, ensuring the overall structural rigidity of the composite probe detection mechanism 7 during movement and detection, and avoiding vibration or displacement of the probe body due to additional components.

[0057] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9As shown, the second auxiliary measuring mechanism 9 also includes a second servo motor 93 fixedly installed on the rear side of the lifting frame 92. An extension rod 95 is fixedly installed on the output end of the second servo motor 93. A second gear disk 96 is fixedly installed at the middle position of the surface of the extension rod 95. A third gear disk 97 is fixedly installed on the end of the extension end of the extension rod 95. The third gear disk 97 is flush with the racetrack-shaped cavity frame 71.

[0058] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 As shown, the fourth auxiliary testing mechanism 10 includes a racetrack-shaped track sleeve 101 movably mounted on the outer edge of the racetrack-shaped cavity frame 71. A meshing toothed sleeve 102 is fixedly connected to the outer edge of the racetrack-shaped track sleeve 101, and the side of the meshing toothed sleeve 102 meshes with the third gear disk 97. A cleaning strip 103 is pasted and installed on the bottom surface of the racetrack-shaped track sleeve 101, and the bottom surface of the cleaning strip 103 protrudes downward. The carbon fiber wheel hub is pre-treated by rotating the extension rod 95 at the output end of the second servo motor 93 in a rotating posture.

[0059] The second servo motor 93 serves as the drive source, and its output shaft drives the extension rod 95 and the third gear disk 97 fixed thereon to rotate. Since the third gear disk 97 meshes with the meshing gear sleeve 102 on the racetrack-shaped track sleeve 101, the rotational motion of the motor is converted into the circumferential motion of the racetrack-shaped track sleeve 101 along the outer edge of the racetrack-shaped cavity frame 71. Because the fourth auxiliary testing mechanism 10 is installed in the forward direction of the composite probe testing mechanism 7, i.e., in the direction of the testing path, and is located in front of the ultrasonic phased array testing probe 73, the cleaning strip 103 can contact the hub surface before the ultrasonic phased array testing probe 73 reaches any point to be tested.

[0060] In actual production and testing environments, the surface of carbon fiber wheel hubs may be contaminated with physical pollutants such as release agent residue, environmental dust, particles from previous processes, or dried old coupling agent from the previous test. If new coupling agent is applied directly and testing is performed, these pollutants will be trapped in the coupling agent layer or exist between the probe and the wheel hub interface, forming abnormal acoustic impedance points, severely scattering or attenuating ultrasonic energy, leading to a decrease in the signal-to-noise ratio of the test signal, and even masking real defects or generating false signals. The circumferential mechanical scraping and adsorption action of the cleaning strip 103 can effectively remove these loosely attached pollutants, providing a clean initial surface for subsequent testing. The cleaning strip 103 is made of a flexible material with certain elasticity, wear resistance, and trace adsorption properties, such as polyurethane, silicone rubber, or composite materials in the prior art. Its cross-sectional shape is designed as a downward convex arc or wedge shape to ensure that a continuous, moderately pressured linear contact band is formed when contacting the wheel hub surface. This effectively removes the adhering substances while avoiding scratches on the carbon fiber wheel hub surface due to excessive contact area or pressure.

[0061] Even seemingly clean wheel hubs may have microscopic unevenness or tiny resin-rich areas due to material properties. The flexible contact and continuous friction of the cleaning strip 103 can slightly smooth out these microscopic protrusions. By integrating the fourth auxiliary testing mechanism 10 and the composite probe detection mechanism 7 into one unit and coordinating their drive with the same motion control system, the cleaning action and the detection scanning are performed continuously and synchronously, eliminating the need for a separate pre-cleaning station. The cleaning strip 103 always operates at a fixed distance in front of the probe, ensuring that any scanned area undergoes immediate and consistent pre-processing.

[0062] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 As shown, the third auxiliary measuring mechanism 94 includes a storage cylinder 941 fixedly installed on the front side of the lifting frame 92. The inner bottom of the storage cylinder 941 is provided with a concave annular groove 942. A pivot rod 944 is movably installed at the center of the storage cylinder 941, and a corresponding sealing ring is provided at the movably installed end. A stirring rack 945 is fixedly installed on one side of the pivot rod 944 that extends into the storage cylinder 941. A heat-conducting scraper plate 946 is fixedly connected to the outer edge of the stirring rack 945 and attached to the inner wall of the storage cylinder 941. The inner wall of the storage cylinder 941 is provided with a friction coating. Two external delivery conduits 943 are connected to the bottom of the concave annular groove 942.

[0063] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 As shown, the third auxiliary measuring mechanism 94 further includes a first gear disk 947 fixedly installed on one end of the shaft rotating rod 944 extending out of the storage cylinder 941, and the side of the first gear disk 947 meshes with the side of the second gear disk 96. A downwardly extending cleaning disk 948 is fixedly installed at the bottom of the first gear disk 947. An absorbent cotton block 949 is disposed on the end face of the cleaning disk 948, and several heat-conducting wires 9410 are connected to the absorbent cotton block 949.

[0064] The storage cylinder 941 is used to contain the aqueous ultrasonic coupling agent. During operation, when the second servo motor 93 drives the extension rod 95 and the second gear disk 96 to rotate, the power is transmitted to the shaft rotating rod 944 through the meshing of the second gear disk 96 and the first gear disk 947, thereby driving the stirring rack 945 and the heat-conducting scraper plate 946 to rotate inside the storage cylinder 941. During continuous stirring, the components in the coupling agent can be prevented from settling or stratifying due to standing, ensuring the uniformity and stability of its acoustic performance. When the heat-conducting scraper 946 rotates and scrapes inside the storage cylinder 941, heat exchange occurs. The heat generated by friction is transferred to the coupling agent through the heat-conducting scraper 946. At the same time, one end of the heat-conducting wire 9410 is connected to the absorbent cotton block 949, and the other end can be connected to the stirring frame 945 through a heat-conducting material, so that the heat outside the stirring frame 945 is indirectly introduced into the absorbent cotton block 949.

[0065] The cleaning disc 948 and its adsorption cotton block 949, synchronously driven by the first gear disc 947, are positioned behind the detection path of the ultrasonic phased array detection probe 73. After the probe completes scanning of a certain area, the device continues forward, and the adsorption cotton block 949 immediately contacts and covers the wheel hub surface area that has just been coated with coupling agent and has completed the detection. The adsorption cotton block 949 is made of highly absorbent materials, such as microfiber or hydrophilic sponge as in existing technologies. Multiple heat-conducting wires 9410 connected to it help maintain a certain temperature, making it more flexible and improving the adsorption efficiency of room-temperature coupling agent. Through physical contact and adsorption, excess coupling agent remaining on the wheel hub surface after detection is pre-treated, allowing for immediate grinding of the coupling agent coating for easy subsequent cleaning. During continuous, circumferential testing, the same area of ​​the wheel hub may be repeatedly tested, or cross-influence may occur when adjacent areas are tested. Timely grinding of the coupling agent coating can prevent it from drying out, accumulating, or mixing with the newly applied coupling agent, thus avoiding acoustic signal distortion caused by interference from the old coupling agent layer.

[0066] During the rotation of the shaft rod 944, the stirring rack 945 can also make the flowing coupling agent better trapped inside the concave annular groove 942, so as to facilitate the output of coupling agent by the external delivery conduit 943 on the outside of the concave annular groove 942.

[0067] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 As shown, the first auxiliary testing mechanism 8 includes a second gantry crane 81 fixedly installed on the upper surface of the runway-shaped cavity frame 71. A third servo telescopic rod 82 is fixedly installed at the top middle position of the second gantry crane 81. A round-headed pressure block 83 is fixedly installed on the telescopic end of the third servo telescopic rod 82. Several extended side plates 84 are fixedly arranged in a circular pattern on the outer edge of the round-headed pressure block 83. A sliding limit rod 85 is slidably installed on the surface of each extended side plate 84. A circular ring pressure cover 86 is configured on the outside of the round-headed pressure block 83 through several sliding limit rods 85. A return spring sleeve 87 is sleeved on the outside of each sliding limit rod 85. The return spring sleeve 87 makes the circular ring pressure cover 86 always have a downward pushing tendency.

[0068] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 As shown, several first one-way valve tubes 76 are sequentially fixedly connected to the inner ring surface of the runway-shaped cavity frame 71 near the round head pressure block 83. A circular reset sleeve 77 is assembled on the inner ring of the runway-shaped cavity frame 71 through the first one-way valve tubes 76. The center of the circular reset sleeve 77 is aligned vertically with the center of the round head pressure block 83. Several second one-way valve tubes 78 are fixedly assembled in a circumferential manner on the inner ring surface of the circular reset sleeve 77.

[0069] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9As shown, two cavity support conduits 75 connected to the bottom of the storage cylinder 941 are fixedly connected to the racetrack-shaped cavity frame 71 near the annular reset rubber sleeve 77. The external delivery conduit 943 extends into the inner cavity of the racetrack-shaped cavity frame 71 through the cavity support conduits 75 and is connected to each of the first one-way valve pipes 76. A scanning beam 79 is also fixedly installed on the racetrack-shaped cavity frame 71 between the ultrasonic phased array detection probe 73 and the round-headed pressure block 83.

[0070] The coupling agent, after being stirred and insulated from the storage cylinder 941 of the third auxiliary testing mechanism 94, is guided by the external delivery conduit 943 and passes through the cavity support conduit 75 into the inner cavity of the racetrack-shaped cavity frame 71. It then connects with several first one-way valves 76 located on the inner wall. Under the influence of gravity and the negative pressure generated by each flattening and resetting of the annular reset sleeve 77, the coupling agent enters the first one-way valves 76. The first one-way valves 76 have a one-way flow function, allowing the coupling agent to flow only from the external delivery conduit 943 into the interior of the annular reset sleeve 77, preventing backflow. The coupling agent is thus temporarily stored in the inner cavity of the annular reset sleeve 77.

[0071] When the composite probe detection mechanism 7 moves above the area to be detected, the third servo telescopic rod 82 drives the round-headed pressure block 83 to move downward. Initially, the annular pressure cover 86 remains in a downward-protruding state under the elastic force of the return spring sleeve 87, and therefore contacts the upper surface of the annular return sleeve 77 before the round-headed pressure block 83. As the round-headed pressure block 83 continues to move downward, the annular pressure cover 86 presses against the annular return sleeve 77, but due to the elastic force of the return spring sleeve 87, the annular pressure cover 86 has an upward relative movement with respect to the round-headed pressure block 83. This process causes the annular return sleeve 77 to be gradually flattened. The annular reset sleeve 77 is made of an elastic material, such as silicone in the prior art. When compressed, its internal cavity volume decreases and the pressure increases, forcing the coupling agent stored inside to be discharged downwards through the second one-way valve tube 78, and evenly coated on the surface of the area to be tested on the lower hub. The second one-way valve tube 78 is also one-way, only allowing the coupling agent to be discharged from the inside of the annular reset sleeve 77 to the outside, preventing the backflow of air or contaminants. As the round head pressure block 83 continues to move downwards, the reset spring sleeve 87 is further compressed. The spherical part of the round head pressure block 83 will eventually contact and press over the coupling agent coating that has just been extruded. The round head pressure block 83 enables it to further flatten and evenly spread the coupling agent, forming a thin layer of coupling agent with uniform thickness and no air bubbles.

[0072] Due to the presence of the reset spring sleeve 87, the relative position between the annular pressure cover 86 and the round head pressure block 83 can be adaptively adjusted. When encountering slight undulations or unevenness on the surface of the wheel hub, the annular pressure cover 86 can float relative to the round head pressure block 83, thereby ensuring that the annular reset rubber sleeve 77 is evenly squeezed, while the round head pressure block 83 can also evenly flatten the coupling agent.

[0073] The storage cylinder 941 is located at the top, and the coupling agent is injected into the annular reset sleeve 77 through the cavity support conduit 75 and the first one-way valve tube 76. The annular reset sleeve 77 is located at the bottom, and the coupling agent is discharged to the hub surface through the second one-way valve tube 78. This vertical spatial arrangement allows gravity to assist in the delivery of the coupling agent, and also makes the entire coupling agent supply path compact and continuous. A combination of a round-headed pressure block 83 driven by a third servo telescopic rod 82 and an annular pressure cover 86, along with the elastic annular reset sleeve 77 and one-way valve tube, enables a uniform and stable coupling agent layer to be automatically applied in real time in front of the detection path before the ultrasonic phased array detection probe 73 scans. This changes the traditional static mode of pre-applying coupling agent and solves the detection error problem caused by uneven coupling agent layer, uncontrollable thickness, or performance changes due to environmental factors.

[0074] Meanwhile, the configured scanning beam 79 is located between the ultrasonic phased array detection probe 73 and the round-headed pressure block 83. It is a module used for optical detection in the prior art. Multiple non-contact sensors are arranged on the detection end, including but not limited to laser triangular displacement sensors and confocal displacement sensors. The selection of these sensors depends on the properties of the coupling agent to be monitored. The coupling agent coating quality is monitored in real time to obtain key information such as its thickness distribution, surface flatness, and whether there are obvious defects or bubbles. If the coupling agent coating is uneven or even lacks a coating, that is, if it is completely consumed, feedback can be given in real time.

[0075] The usage method provided by this invention is as follows:

[0076] In use, the carbon fiber wheel hub to be inspected is first placed on the centrally located ventilated plate 4 inside the carbon fiber wheel hub inspection box 2. After the self-inspection sealing cabinet 1 is sealed, the dehumidification box 3 at the bottom is activated to maintain stable humidity inside the inspection box and avoid environmental fluctuations affecting the performance of the subsequent coupling agent. The first servo motor 61 in the ring drive servo adjustment mechanism 6 drives the shaft hanging column 62 to rotate, which drives the two sets of first servo telescopic rods 63 and second servo telescopic rods 64 to perform linkage telescopic adjustment, so that the composite probe inspection mechanism 7 adapts to the surface curvature of the wheel hub. The telescopic movement of the second servo telescopic rod 64 pulls the first servo telescopic rod 63 to deflect around the hinge point, realizing the pre-adjustment of the fitting posture of the flat or curved wheel hub.

[0077] Then, the second servo motor 93 starts, and its output end extension rod 95 drives the third gear disk 97 to rotate. Through the meshing gear sleeve 102, it drives the racetrack-shaped track sleeve 101 to move circumferentially along the outer edge of the racetrack-shaped cavity frame 71. The cleaning strip 103 contacts the hub surface in front of the ultrasonic phased array detection probe 73 to perform mechanical scraping and adsorption pretreatment to remove surface deposits. At the same time, the second gear disk 96 on the extension rod 95 drives the meshing first gear disk 947 to rotate, so that the shaft rotating rod 944 drives the stirring rack 945 and the heat-conducting scraper plate 946 in the storage cylinder 941 to rotate, continuously stirring and heating the coupling agent to prevent its stratification or performance changes.

[0078] Then, the stirred coupling agent flows out through the two external conduits 943 at the bottom of the concave annular groove 942, enters the inner cavity of the racetrack-shaped cavity frame 71 through the cavity support conduit 75, and is injected into the annular reset sleeve 77. The third servo telescopic rod 82 in the first auxiliary testing mechanism 8 pushes the round head pressure block 83 down. Under the action of the reset spring sleeve 87, the annular pressure cover 86 first contacts and flattens the annular reset sleeve 77, so that the coupling agent is evenly squeezed out from the second one-way valve tube 78 onto the surface of the hub. With the subsequent round head pressure block 83 continuing to press down, the coupling agent coating is further flattened to form a uniform thin layer. At this time, the scanning beam 79 performs optical monitoring on the coating and feeds back its flatness information.

[0079] Finally, the ultrasonic phased array detection probe 73, under the fine adjustment of the servo multi-axis sleeve 74, is attached to the hub surface coated with coupling agent to perform a surround scan detection.

[0080] During the testing process, the first gear disk 947 drives the cleaning disk 948 to rotate, and the absorbent cotton block 949 at its bottom is kept at a suitable temperature by the heat-conducting wire 9410 to perform primary cleaning of the residual coupling agent in the tested area behind the probe.

[0081] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0082] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. An automatic detection device for carbon fiber wheel hubs, comprising a self-detection sealed cabinet (1), wherein an independent carbon fiber wheel hub detection box (2) is configured inside the self-detection sealed cabinet (1), and a dehumidification box (3) is configured at the bottom of the carbon fiber wheel hub detection box (2) to maintain the detection humidity inside the carbon fiber wheel hub detection box (2), characterized in that: The bottom of the carbon fiber wheel hub testing box (2) is fixedly installed with a central vent plate (4) for assembling carbon fiber wheel hubs, and a first gantry crane (5) is fixedly installed on the surface of the central vent plate (4). The first gantry crane (5) is equipped with a ring drive adjustment mechanism (6) located directly above the central vent plate (4). The ring drive adjustment mechanism (6) is used to drive two sets of symmetrically arranged composite probe testing mechanisms (7) to adjust their posture so as to adaptively fit the surface of the bent carbon fiber wheel hub. The composite probe detection mechanism (7) includes a runway-shaped cavity frame (71) that provides support, a first auxiliary testing mechanism (8) and a second auxiliary testing mechanism (9) respectively disposed on both sides of the runway-shaped cavity frame (71), and an ultrasonic phased array detection probe (73) disposed in the middle of the runway-shaped cavity frame (71). The second auxiliary measuring mechanism (9) is used to provide driving force and synchronously drive the fourth auxiliary measuring mechanism (10) and the third auxiliary measuring mechanism (94) to operate. The fourth auxiliary testing mechanism (10) is located on the outer edge of the runway-shaped cavity frame (71) and is used to pre-clean the surface of the carbon fiber hub before the ultrasonic phased array testing probe (73) is tested. The third auxiliary testing mechanism (94) is set on the second auxiliary testing mechanism (9) and is used to store the coupling agent and to stir and conduct heat to maintain its uniform performance; the third auxiliary testing mechanism (94) is connected to the first auxiliary testing mechanism (8) and is used to supply the coupling agent to the front side of the detection path of the ultrasonic phased array detection probe (73) in real time. The first auxiliary testing mechanism (8) is used to receive the coupling agent supplied by the third auxiliary testing mechanism (94) and uniformly coat the coupling agent on the surface of the carbon fiber wheel hub in front of the detection path to form a thin layer of coupling agent with controllable thickness. The fourth auxiliary testing mechanism (10) includes a racetrack-shaped track sleeve (101) movably mounted on the outer edge of the racetrack-shaped cavity frame (71). A meshing tooth sleeve (102) is fixedly connected to the outer edge of the racetrack-shaped track sleeve (101), and the side of the meshing tooth sleeve (102) meshes with the third gear disk (97). A cleaning strip (103) is pasted on the bottom surface of the racetrack-shaped track sleeve (101), and the bottom surface of the cleaning strip (103) protrudes downward. The carbon fiber wheel hub is pre-treated by rotating the extension rod (95) at the output end of the second servo motor (93) in a rotating posture.

2. The automatic detection device for carbon fiber wheel hubs according to claim 1, characterized in that, The ring drive servo adjustment mechanism (6) includes a first servo motor (61) fixedly installed at the middle position of the top of the first gantry crane (5). A shaft hanger (62) is fixedly installed on the output end of the first servo motor (61). Two sets of symmetrically arranged first servo telescopic rods (63) are hinged to the bottom of the shaft hanger (62). A second servo telescopic rod (64) is hinged to the side of each set of first servo telescopic rods (63). The other end of the second servo telescopic rod (64) is hinged to the side wall of the shaft hanger (62) to obliquely suspend the first servo telescopic rod (63). The first servo telescopic rod (63) and the second servo telescopic rod (64) can extend and retract along their own length direction. The first servo telescopic rod (63) is pulled by the drive extension and retraction of the second servo telescopic rod (64) to adjust its posture to adapt to the flat state of the carbon fiber wheel hub and the bent state of the carbon fiber wheel hub.

3. The automatic detection device for carbon fiber wheel hubs according to claim 2, characterized in that, The composite probe detection mechanism (7) also includes an assembly frame (72) fixedly connected to the middle position of the surface of the runway-shaped cavity frame (71), and an ultrasonic phased array detection probe (73) is assembled through the assembly frame (72). A servo multi-axis head (74) is assembled on the top of the assembly frame (72), and is connected to the output end of the first servo telescopic rod (63) through the servo multi-axis head (74). The second auxiliary testing mechanism (9) includes a support frame (91) fixedly connected to the outside of the assembly frame (72), and a lifting frame (92) is fixedly connected to the top of the support frame (91).

4. The automatic detection device for carbon fiber wheel hubs according to claim 3, characterized in that, The second auxiliary measuring mechanism (9) also includes a second servo motor (93) fixedly installed on the rear side of the lifting frame (92). An extension rod (95) is fixedly installed on the output end of the second servo motor (93). A second gear disk (96) is fixedly installed at the middle position of the surface of the extension rod (95). A third gear disk (97) is fixedly installed at the end of the extension end of the extension rod (95). The third gear disk (97) is flush with the racetrack-shaped cavity frame (71).

5. An automatic detection device for carbon fiber wheel hubs according to claim 4, characterized in that, The third auxiliary measuring mechanism (94) includes a storage cylinder (941) fixedly installed on the front side of the lifting frame (92). The bottom of the storage cylinder (941) is provided with a concave annular groove (942). A pivot rod (944) is movably installed at the center of the storage cylinder (941), and a corresponding sealing ring is provided at the movably installed end. A stirring rack (945) is fixedly installed on one side of the pivot rod (944) that extends into the storage cylinder (941). A heat-conducting scraper plate (946) attached to the inner wall of the storage cylinder (941) is fixedly connected at the outer edge of the stirring rack (945). The inner wall of the storage cylinder (941) is provided with a friction coating. Two external delivery conduits (943) are connected to the bottom of the concave annular groove (942).

6. An automatic detection device for carbon fiber wheel hubs according to claim 5, characterized in that, The third auxiliary measuring mechanism (94) further includes a first gear disk (947) fixedly installed on the end of the shaft rotating rod (944) extending out of the storage cylinder (941), and the side of the first gear disk (947) meshes with the side of the second gear disk (96). A downwardly extending cleaning disk (948) is fixedly installed at the bottom of the first gear disk (947), and an adsorption cotton block (949) is arranged on the end face of the cleaning disk (948), and several heat-conducting wires (9410) are connected to the adsorption cotton block (949).

7. An automatic detection device for carbon fiber wheel hubs according to claim 6, characterized in that, The first auxiliary testing mechanism (8) includes a second gantry crane (81) fixedly installed on the upper surface of the runway-shaped cavity frame (71). A third servo telescopic rod (82) is fixedly installed at the top middle position of the second gantry crane (81). A round-headed pressure block (83) is fixedly installed on the telescopic end of the third servo telescopic rod (82). Several extended side plates (84) are fixedly arranged in a circular pattern on the outer edge of the round-headed pressure block (83). A sliding limit rod (85) is slidably installed on the surface of each extended side plate (84). A circular ring pressure cover (86) is configured on the outside of the round-headed pressure block (83) through several sliding limit rods (85). A reset spring sleeve (87) is sleeved on the outside of each sliding limit rod (85). The circular ring pressure cover (86) always has a downward pushing motion tendency through the reset action of the reset spring sleeve (87).

8. An automatic detection device for carbon fiber wheel hubs according to claim 7, characterized in that, On the inner ring surface of the runway-shaped cavity frame (71) near the round head pressure block (83), a number of first one-way valve tubes (76) are fixedly connected in sequence. A circular reset sleeve (77) is assembled on the inner ring of the runway-shaped cavity frame (71) through the first one-way valve tubes (76). The center of the circular reset sleeve (77) is aligned vertically with the center of the round head pressure block (83). A number of second one-way valve tubes (78) are fixedly assembled in a circumferential manner on the inner ring surface of the circular reset sleeve (77).

9. An automatic detection device for carbon fiber wheel hubs according to claim 8, characterized in that, Two cavity support conduits (75) connected to the bottom of the storage cylinder (941) are fixedly connected to the racetrack-shaped cavity frame (71) near the annular reset rubber sleeve (77). The external delivery conduit (943) extends into the inner cavity of the racetrack-shaped cavity frame (71) through the cavity support conduits (75) and is connected to each of the first one-way valve pipes (76). A scanning beam (79) is also fixedly installed on the racetrack-shaped cavity frame (71) between the ultrasonic phased array detection probe (73) and the round head pressure block (83).

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