Hub inner support fixing device, hub detection equipment and hub detection method

Abstract

The invention discloses a hub inner support fixing device, hub detection equipment and a hub detection method. The hub inner support fixing device is suitable for fixing a hub, the hub comprises a rim, the rim is provided with a peripheral wall circumferentially arranged around the axis of the hub, and the hub inner support fixing device comprises a first abutting part and a second abutting part. The second abutting part and the first abutting part are suitable for extending into the hub in the first direction, and the second abutting part is movably connected with the first abutting part. Wherein the second abutting part is configured to be far away from the first abutting part in the second direction, so that the first abutting part and the second abutting part are suitable for abutting against the peripheral wall, and / or the second abutting part is configured to be close to the first abutting part in the second direction, so that the first abutting part and the second abutting part are suitable for being spaced from the hub; the second direction is perpendicular to the first direction. The wheel hub is better in compatibility and better in protectiveness.

Description

Technical Field

[0001] The present invention relates to the technical field of wheel hub detection, and in particular to a wheel hub inner support fixing device, a wheel hub detection device and a wheel hub detection method. Background Art

[0002] With the rapid development of the automotive industry towards intelligence and customization, the manufacturing precision and defect detection standards of wheels, as core components that carry the dynamic performance of vehicles, have become increasingly stringent. Minor defects on the wheel hub, such as cracks and air holes, can cause catastrophic failure under complex working conditions, which places extremely high demands on the non-destructive testing of the wheel hub. Traditional manual visual inspection or single-angle scanning technology can no longer meet these high-precision detection requirements. Although machine vision imaging technology can reveal defects in the wheel hub, the detection efficiency and coverage are largely dependent on the wheel hub's posture adjustment capabilities, which brings new challenges to the design of the wheel hub positioning structure.

[0003] Traditional wheel hub positioning devices usually use clamps to fix the hub. When faced with hubs of different models and sizes, there is a problem of poor compatibility and it is difficult to grasp them stably. Moreover, during the positioning and clamping process, it is easy to cause secondary damage to the hub surface such as scratches and bumps, affecting the appearance and quality of the hub. For example, on an automobile hub production line, traditional positioning devices may need to be frequently replaced or adjusted to adapt to different types of hubs, which not only increases the complexity of operation, but also reduces production efficiency. In addition, for some hubs with specially treated surfaces or complex curves, the rigid contact method of the traditional positioning device may lead to local uneven force, and there is a risk of secondary damage to the hub. Summary of the Invention

[0004] The main purpose of the present invention is to provide a wheel hub inner support fixing device, a wheel hub detection device and a wheel hub detection method. The present invention has better compatibility and better protection for the wheel hub.

[0005] To achieve the above objectives, some embodiments of the present invention provide a hub inner support fixing device, suitable for fixing a hub, wherein the hub includes a rim having a peripheral wall arranged circumferentially around the hub axis, and the hub inner support fixing device includes: The first supporting part, a second abutting portion, wherein the second abutting portion and the first abutting portion are both adapted to extend into the wheel hub along the first direction, and the second abutting portion is movably connected to the first abutting portion; In which, the second abutting portion is configured to be able to move away from the first abutting portion along the second direction, so that the first abutting portion and the second abutting portion are both suitable for abutting the peripheral wall, and / or, the second abutting portion is configured to be able to approach the first abutting portion along the second direction, so that the first abutting portion and the second abutting portion are both suitable for being spaced from the wheel hub, and the second direction is perpendicular to the first direction.

[0006] In some embodiments, the wheel hub inner support fixing device includes a driving part and a transmission part, the first supporting part and the second supporting part are both connected to the driving part through the transmission part, and the driving part is configured to drive the second supporting part away from the first supporting part or close to the first supporting part along the second direction.

[0007] In some embodiments, the transmission portion includes a first connecting arm and a second connecting arm, the first abutting portion is connected to one end of the first connecting arm along the second direction, and the second abutting portion is connected to one end of the second connecting arm along the second direction away from the first abutting portion; The driving part includes a rotating member, a first connecting arm and a second connecting arm respectively connected to opposite sides of the rotating member, and the rotating member rotates circumferentially around a first direction to make the first abutting portion and the second abutting portion approach or move away from each other.

[0008] In some embodiments, the first supporting portion is rotatably connected to the first connecting arm, the second supporting portion is rotatably connected to the second connecting arm, the first connecting arm and the second connecting arm are both rotatably connected to the rotating member, the extension directions of the first connecting arm and the second connecting arm are parallel, and the rotating member is clamped between the first connecting arm and the second connecting arm in a direction perpendicular to the extension direction of the first connecting arm, and the wheel hub inner support fixing device includes a limit member, which is used to limit the movement of the first connecting arm and the second connecting arm along the second direction.

[0009] In some embodiments, the limiting member includes a guide rail and a first slider and a second slider respectively connected to the guide rail in a sliding manner, the first slider is connected to the first abutting portion, and the second slider is connected to the second abutting portion.

[0010] In some embodiments, the driving portion includes a driving cylinder connected to the rotating member, and the driving cylinder is used to drive the first rotating member to rotate around the first direction.

[0011] In some embodiments, the driving unit includes a pressure sensor connected to the driving cylinder, and the pressure sensor is used to determine the pressure of the driving cylinder.

[0012] In some embodiments, the surface of the first abutting portion for abutting the hub is configured as a cambered surface, and the surface of the second abutting portion for abutting the hub is configured as a cambered surface; and / or, The first supporting portion is elastic, and the second supporting portion is elastic.

[0013] An embodiment of the second aspect of the present invention provides a wheel hub detection device, comprising any one of the above-mentioned wheel hub inner support fixing devices, and the wheel hub moving device further comprising: A rotating assembly connected to the wheel hub inner support fixing device to drive the wheel hub inner support fixing device to rotate circumferentially around a first direction; A jacking assembly connected to the rotating assembly, the jacking assembly being capable of driving the rotating assembly and the hub inner support fixing device to move along a first direction; The detection system is suitable for detecting a wheel hub sleeved on a wheel hub inner support fixing device.

[0014] An embodiment of a third aspect of the present invention provides a wheel hub detection method, which is used in the above-mentioned wheel hub detection device. The wheel hub detection method includes: The jacking assembly drives the hub inner support fixing device to extend into the hub; The first abutting portion and the second abutting portion both abut against the inner wall of the rim of the wheel hub; The rotating assembly drives the wheel hub inner support fixing device to rotate so as to rotate the wheel hub; The detection system obtains the information of the wheel hub.

[0015] According to the above embodiments, the beneficial effects of the present invention are: The wheel hub inner support fixing device of the present invention includes a first supporting portion and a second supporting portion. The second supporting portion and the first supporting portion are both suitable for extending into the wheel hub along the first direction, and the second supporting portion is movably connected to the first supporting portion. Specifically, the second supporting portion is configured to be able to move away from or approach the first supporting portion along the second direction, and the second supporting portion moves away from the first supporting portion to achieve the effect of the first supporting portion and the second supporting portion abutting against the inner side of the rim wall, thereby achieving the positioning of the wheel hub. The second supporting portion moves close to the first supporting portion to achieve the spacing and separation of the first supporting portion, the second supporting portion and the wheel hub, thereby releasing the restriction on the wheel hub. In addition, when there is no need to position the wheel hub, the second supporting portion and the first supporting portion move close to each other, which can make the wheel hub inner support fixing device occupy less space and improve space utilization.

[0016] It is understood that the hub internal support fixture of the present application abuts the hub from the inside of the hub, achieving a fixed connection with the hub in a propped-up manner. Since the distance between the first and second abutting portions is adjustable, the present application is adaptable to hubs of different sizes and calibers, and has better compatibility. Specifically, when the assembly needs to adapt to a rim with a larger diameter, the second abutting portion can be moved away from the first abutting portion along a second direction perpendicular to the first direction; conversely, when facing a rim with a smaller diameter, the second abutting portion moves closer to the first abutting portion along the second direction.

[0017] Furthermore, compared to the prior art method of clamping the wheel hub to position it, the present invention only abuts the wheel hub from the inside, resulting in a more balanced force on the wheel hub, better protection for the wheel hub, and effectively preventing damage to the wheel hub. Furthermore, because the first and second abutting portions can be close to each other, when the wheel hub internal support fixture of the present invention is not in use or needs to pass through a small space, the first and second abutting portions can be brought together to reduce the space occupied by the wheel hub internal support fixture and improve space utilization.

[0018] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0020] Figure 1 A schematic diagram of a partial three-dimensional structure of a wheel hub detection device according to an embodiment of the present invention; Figure 2 2. A schematic diagram of the three-dimensional structure of a wheel hub inner support fixing device according to an embodiment of the present invention, wherein the first abutting portion and the second abutting portion are close to each other; Figure 3 For first-person perspective Figure 2 Schematic diagram of the three-dimensional structure of the center hub inner support fixing device; Figure 4 To observe along the second perspective Figure 2 Schematic diagram of the three-dimensional structure of the center hub inner support fixing device; Figure 5 Schematic diagram of the three-dimensional structure of the wheel hub inner support fixing device according to one embodiment of the present invention, wherein the first abutting portion and the second abutting portion are spaced apart from each other to abut against a wheel hub of smaller size; Figure 6 A schematic diagram of the three-dimensional structure of a wheel hub inner support fixing device according to an embodiment of the present invention, wherein the first abutting portion and the second abutting portion are spaced apart from each other to abut against a wheel hub of a larger size; Figure 7 Schematic diagram of the three-dimensional structure of the lifting outer cylinder observed from a third viewing angle in one embodiment of the present invention; Figure 8 Schematic diagram of the three-dimensional structure of the lifting outer cylinder observed from a fourth viewing angle in one embodiment of the present invention; Figure 9 Schematic diagram of the three-dimensional structure of the lifting outer cylinder observed from a fifth viewing angle in one embodiment of the present invention; Figure 10 Schematic diagram of the three-dimensional structure of the lifting inner cylinder observed from a sixth viewing angle in one embodiment of the present invention; Figure 11 Schematic diagram of the three-dimensional structure of the lifting inner cylinder observed from the seventh viewing angle in one embodiment of the present invention; Figure 12 Schematic diagram of the three-dimensional structure of the lifting inner cylinder observed from an eighth viewing angle in one embodiment of the present invention; Figure 13 This is a schematic structural diagram of a rotating assembly in one embodiment of the present invention; Figure 14 FIG. 4 is a flow chart of a wheel hub detection method according to an embodiment of the present invention.

[0021] Description of Figure Numbers: Hub inner support fixing device 100; first supporting portion 110; second supporting portion 120; driving portion 130; rotating member 131; transmission portion 140; first connecting arm 141; second connecting arm 142; limiting member 150; guide rail 151; first slider 160; second slider 170; Rotating assembly 200; rotating platform 210; Lifting assembly 300; lifting inner cylinder 310; lifting outer cylinder 320; lifting platform 330.

[0022] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0024] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0025] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or", "and / or" or "and / or" appear in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement it. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0026] Reference below Figures 1 to 14 The wheel hub inner support fixing device 100, the wheel hub detection device and the wheel hub detection method according to the embodiment of the present invention are described. Figure 1 as well as Figures 2 to 6 The wheel hub inner support fixing device 100 of the present invention includes a first supporting portion 110 and a second supporting portion 120. The second supporting portion 120 and the first supporting portion 110 are both suitable for extending into the wheel hub along the first direction, and the second supporting portion 120 is movably connected to the first supporting portion 110. For ease of understanding, this article describes the axial direction when the wheel hub to be tested is fixed on the wheel hub inner support fixing device 100 as the first direction. Specifically, the second supporting portion 120 is configured to be able to move away from or approach the first supporting portion 110 along the second direction. The second supporting portion 120 moves away from the first supporting portion 110 to achieve the effect of the first supporting portion 110 and the second supporting portion 120 abutting against the inner side of the rim wall, thereby achieving the positioning of the wheel hub. The second supporting portion 120 moves close to the first supporting portion 110 to achieve the spacing and separation of the first supporting portion 110, the second supporting portion 120 and the wheel hub, thereby releasing the restriction on the wheel hub. In addition, when the wheel hub does not need to be positioned, the second abutting portion 120 and the first abutting portion 110 are close to each other, so that the wheel hub inner support fixing device 100 occupies less space and improves space utilization.

[0027] Reference Figure 2 、 Figure 5 and Figure 6 The hub internal support fixing device 100 of the present application abuts the hub from the inside of the hub, and realizes a fixed connection with the hub in a supporting manner. Since the distance between the first abutting portion 110 and the second abutting portion 120 is adjustable, the present application can adapt to hubs of different sizes and calibers, and the present application has better compatibility. The present application ensures that both of the two abutting portions can effectively abut the circumferential wall of the rim by adjusting the distance between them, thereby firmly fixing the hub. Specifically, when it is necessary to adapt the assembly to a rim with a larger diameter, the second abutting portion 120 can move away from the first abutting portion 110 along a second direction perpendicular to the first direction; conversely, when facing a rim with a smaller diameter, the second abutting portion 120 moves closer to the first abutting portion 110 along the second direction.

[0028] Furthermore, compared to the prior art method of clamping the wheel hub to position it, the present invention only abuts the wheel hub from the inside, which results in a more balanced force on the wheel hub, better protection for the wheel hub, and effectively prevents damage to the wheel hub. Furthermore, because the first abutting portion 110 and the second abutting portion 120 can be close to each other, when the wheel hub internal support fixture 100 of the present invention is not in use or needs to pass through a small space, the first abutting portion 110 and the second abutting portion 120 can be brought together to reduce the space occupied by the wheel hub internal support fixture 100 and improve space utilization.

[0029] It can be understood that in some embodiments, the wheel hub internal support fixing device 100 includes multiple structures for supporting the wheel hub. For example, in addition to the first supporting portion 110 and the second supporting portion 120, there are also a third supporting portion, a fourth supporting portion, a fifth supporting portion, etc., and multiple supporting portions with a supporting effect are designed to more evenly apply the force for fixing to the wheel hub, so that the force on the wheel hub is more balanced, and the force on a certain point of the wheel hub is weaker, which provides better protection for the wheel hub.

[0030] In this application, the second direction is any direction perpendicular to the first direction. The second abutting portion 120 moves away from the first abutting portion 110 along the second direction, intended to reflect the spreading action of the first abutting portion 110 and the second abutting portion 120, so that the two abut against the inner side of the rim wall in a spreading manner. Therefore, regarding the third, fourth, and fifth abutting portions in the above-mentioned embodiments, they all abut against the inner side of the rim wall in a spreading manner, and the direction in which they diverge from each other is not a single direction. It can be understood as a spreading action that spreads outward from the hub axis. Furthermore, for example, when the hub internal support fixture 100 includes the first abutting portion 110, the second abutting portion 120, and the third abutting portion, in order to balance the force applied to the hub, the three abutting portions are typically arranged at evenly spaced angles around each other. In this case, when the three abutting portions spread from the center position to abut the rim, the three abutting portions do not diverge from each other in a single direction. In summary, the second direction is introduced in this application only for the convenience of description and cannot be limited to the fact that when the hub inner support fixing device 100 is expanded to position the hub, they can only move away from each other in a single direction.

[0031] Of course, it is understandable that the first abutting portion 110 and the second abutting portion 120 do not necessarily move in opposite directions when abutting the wheel hub. The first abutting portion 110 and the second abutting portion 120 only need to apply components of the force in opposite directions to the wheel hub to ensure that the wheel hub is positioned.

[0032] In some embodiments, a small spring mechanism is integrated inside the first abutting portion 110 and the second abutting portion 120 to achieve adaptive pressure adjustment when contacting the rim. Specifically, the spring mechanism is installed inside the contact surface of the abutting portion and is arranged along the direction of contact between the abutting portion and the rim. When the abutting portion is stretched to contact the rim, the spring mechanism can adjust the pressure in real time according to the rigidity and contact area of ​​the rim to ensure that the contact force between the abutting portion and the rim is strong enough without causing damage to the hub due to excessive pressure. The elastic coefficient of the spring mechanism can be optimized according to the material and size of the hub to accommodate hubs of different specifications. In addition, the dynamic adjustment capability of the spring mechanism enables the hub internal support fixing device 100 to automatically adapt to and maintain the best fixing effect when facing rims of different diameters, further improving the compatibility and protection of the component.

[0033] Reference Figure 2 、 Figure 5 and Figure 6 In some embodiments, the wheel hub inner support fixing device 100 includes a driving portion 130 and a transmission portion 140. The first abutting portion 110 and the second abutting portion 120 are both connected to the driving portion 130 via the transmission portion 140. The driving portion 130 is configured to drive the second abutting portion 120 away from the first abutting portion 110 or toward the first abutting portion 110 along the second direction. The driving portion 130 can be configured in various forms such as a motor and a hydraulic cylinder. In some embodiments, the driving portion 130 can also be a rocker, and the user manually rotates the rocker to move the first abutting portion and the second abutting portion closer to or farther away from each other. The transmission part 140 serves as an intermediate structure connecting the first supporting part 110 and the second supporting part 120 to the driving part 130. It has a certain rigidity and can transmit the driving effect of the driving part 130 to the first supporting part 110 and the second supporting part 120. Such a modular connection method is beneficial to the design of the first supporting part 110 and the second supporting part 120, making the shape and connection method design of the first supporting part 110 and the second supporting part 120 more flexible.

[0034] Reference Figure 2 、 Figure 5 and Figure 6 In some embodiments, the transmission portion 140 includes a first connecting arm 141 and a second connecting arm 142. The first abutting portion 110 is connected to one end of the first connecting arm 141 along the second direction, and the second abutting portion 120 is connected to one end of the second connecting arm 142 along the second direction away from the first abutting portion 110. The first abutting portion 110 and the second abutting portion 120 face opposite sides. When the driving portion 130 drives the first abutting portion 110 and the second abutting portion 120 away from each other, the first abutting portion 110 and the second abutting portion 120 can achieve the effect of abutting the inner side of the rim wall.

[0035] Reference Figure 2 、 Figure 5 and Figure 6In some embodiments, the driving portion 130 includes a rotating member 131, with first and second connecting arms 141, 142 connected to opposite sides of the rotating member 131, respectively. The rotating member 131 rotates circumferentially in a first direction to move the first abutting portion 110, 120 closer to or further from each other. For example, the rotating member 131 can be a relatively flat diamond-shaped rotating block, with the first and second connecting arms 141, 142 pivotally connected to opposite corners of the diamond-shaped rotating block at greater distances. In this embodiment, the movement of the first and second abutting portions 110, 120 away from each other can be understood as a movement away from each other, with the first and second connecting arms 141, 142 connected to opposite radial sides of the intermediate connecting member. Specifically, the intermediate connecting member has a circular profile, with the first and second connecting arms 141, 142 connected to opposite radial sides of the intermediate connecting member. As the circular profile rolls, the first and second connecting arms 141, 142 move in opposite directions, thereby driving the first and second abutting portions 110, 120 to abut the inner side of the rim wall.

[0036] Regarding the movement of the first and second connecting arms 141, 142 in opposite directions under the drive of the rotating member 131, specifically, in some embodiments, the rotating member 131 may be a gear, and the first and second connecting arms 141, 142 are equipped with racks that mesh with the gears. The gears rotate to drive the racks to move linearly. Because the first and second connecting arms 141, 142 are located on opposite sides of the gear in the radial direction, the first and second connecting arms 141, 142 move in opposite directions.

[0037] It is understandable that in some embodiments, in order to further improve the flexibility and reliability of the system, the design of the first connecting arm 141 and the second connecting arm 142 can be improved. For example, the first connecting arm 141 and the second connecting arm 142 are replaced by a telescopic connecting arm. This telescopic connecting arm is composed of a plurality of segments with adjustable lengths, and its total length can be adjusted as needed to more accurately control the position of the abutting portion. In addition, sensors can be integrated inside the connecting arm to monitor its position changes in real time and feed back to the control system so that parameters can be adjusted in time. The telescopic connecting arm can adapt to a wider variety of wheel hub sizes and shapes, enhancing the versatility and applicability of the equipment.

[0038] Reference Figure 2 、 Figure 5 and Figure 6In some embodiments, the first abutting portion 110 is rotatably connected to the first connecting arm 141, and the second abutting portion 120 is rotatably connected to the second connecting arm 142. The first connecting arm 141 and the second connecting arm 142 are both rotatably connected to the rotating member 131. The extension directions of the first connecting arm 141 and the second connecting arm 142 are parallel. The rotating member 131 is clamped between the first connecting arm 141 and the second connecting arm 142 in a direction perpendicular to the extension direction of the first connecting arm 141. The wheel hub inner support fixing device 100 includes a limiter 150, which is used to limit the movement of the first connecting arm 141 and the second connecting arm 142 in the second direction. It is understandable that if a limiter design is not implemented, when the rotating member 131 rotates circumferentially, the first connecting arm 141 and the second connecting arm 142 will also adjust their directions along with the axial rotation of the rotating member 131. That is, the first abutting portion 110 and the second abutting portion 120 will rotate circumferentially along with the rotation of the rotating member 131 and will not be able to abut the rim. The first abutting portion 110, the first connecting arm 141, the second abutting portion 120, the second connecting arm 142, and the rotating member 131 are all rotationally connected, providing a high degree of freedom. When the rotating member 131 rotates, simply by restricting the circumferential movement of the first connecting arm 141, the second connecting arm 142, or the first abutting portion 110, the second abutting portion 120 around the rotating member 131, the first abutting portion 110 and the second abutting portion 120 can slide relative to the limiting member 150 and move closer to or together in opposite directions during the rotation of the rotating member 131.

[0039] Regarding the rotational connection between the first abutting portion 110 and the first connecting arm 141, the second abutting portion 120 and the second connecting arm 142, the first connecting arm 141 and the rotating member 131, and the second connecting arm 142 and the rotating member 131, in some embodiments, these rotational connections are achieved through pin-hole engagement. The length direction of the pin is parallel to the first direction. The first abutting portion 110 can rotate relative to the first connecting arm 141 in the first direction, the second abutting portion 120 can rotate relative to the second connecting arm 142 in the first direction, the first connecting arm 141 can rotate relative to the rotating member 131 in the first direction, and the second connecting arm 142 can rotate relative to the rotating member 131 in the first direction. Due to the action of the limiting member 150, when the rotating member 131 rotates, the first connecting arm 141 and the second connecting arm 142 are blocked by the limiting member 150 and slide in opposite directions, so that the first abutting portion 110 and the second abutting portion 120 abut against the inner surface of the rim wall.

[0040] Reference Figure 2 、 Figure 5 and Figure 6In some embodiments, the hub inner support fixing device 100 includes a limit member 150, and the limit member 150 includes a guide rail 151 and a first slider 160 and a second slider 170 respectively slidably connected to the guide rail 151. The first abutting portion 110 is connected to the first slider 160 through a first connecting arm 141, and the second abutting portion 120 is connected to the second slider 170 through a second connecting arm 142. This structural design enables the first abutting portion 110 and the second abutting portion 120 to move along the direction of the guide rail 151, thereby achieving the movement of approaching or moving away from each other. The guide rail 151 provides a stable linear motion path, ensuring the accuracy and stability of the first abutting portion 110 and the second abutting portion 120 when adjusting the spacing.

[0041] The design of guide rail 151 reduces sliding friction. By using low-friction materials for the rail and slider, friction between them is reduced, improving sliding efficiency. When the drive unit 130 rotates the rotating member 131, the first connecting arm 141 and the second connecting arm 142 respectively drive the first slider 160 and the second slider 170 along the guide rail 151, enabling precise position adjustment of the first and second abutting portions 110 and 120. This not only ensures adaptability to rims of varying sizes, but also ensures stable clamping of the wheel hub during high-precision testing.

[0042] It is understood that in some embodiments, the guide rail 151 can utilize magnetic levitation technology instead of a traditional mechanical contact design. For example, electromagnets are embedded within the guide rail 151 and the slider. By controlling the current intensity to adjust the magnetic field, the slider is suspended a certain distance above the rail, reducing the wear and resistance associated with traditional sliding. This allows for a long service life and high-precision position adjustment, even under high-frequency operation.

[0043] It will be appreciated that in some embodiments, to further enhance the stability and reliability of the position-limiting member 150, multiple sensors, such as position sensors or speed sensors, may be installed on the guide rail 151. These sensors monitor the position and movement speed of the slider in real time and feed this data back to the control system. If an abnormality is detected, the system can immediately take corrective action, ensuring that the first abutting portion 110 and the second abutting portion 120 are always in the correct relative position, thereby improving the safety and accuracy of the entire wheel hub alignment process.

[0044] Reference Figure 2 、 Figure 5 and Figure 6In some embodiments, the driving portion 130 includes a driving cylinder, which is connected to the rotating member 131. The driving cylinder pushes the piston rod through the pressure generated by the compressed air, thereby driving the rotating member 131 to rotate around the first direction. The pressure of the driving cylinder is adjustable, which means that the degree of opening between the first abutting portion 110 and the second abutting portion 120 can be adjusted according to actual needs to accommodate wheels of different specifications. The driving cylinder utilizes the characteristics of liquid incompressibility and hydraulic transmission to convert the input force on a small area into an output force on a large area, thereby effectively overcoming the friction and other resistances between mechanical structures. And the response speed of the driving cylinder is faster than that of the motor, which can improve work efficiency.

[0045] In some embodiments, the drive cylinder is equipped with a pressure sensor to monitor internal pressure changes in real time. If the pressure exceeds a set range, the system automatically adjusts the cylinder's operating state to prevent problems such as equipment damage or wheel hub deformation caused by excessive pressure. This feature is crucial for ensuring long-term stable operation of the equipment and also improves operational safety.

[0046] It is understood that in some embodiments, in addition to the pressure sensor, temperature and humidity sensors may also be added to monitor changes in the environment surrounding the drive cylinder. This is because environmental factors may affect the operating performance of the cylinder and can easily affect the wheel hub in the same indoor environment as the wheel hub internal support fixture 100 of this application. For example, high temperatures may cause sealing rings to age, and excessive humidity may cause corrosion of internal components. By integrating these additional sensors, early warning can be provided and appropriate protective measures can be implemented, extending the service life of the equipment while improving the reliability and safety of the system.

[0047] In some embodiments, the driving portion 130 includes a pressure sensor. The driving cylinder is connected to the rotating member 131 and is used to drive the first rotating member 131 to rotate in a first direction. The pressure sensor can be connected to the driving cylinder or to any component that directly or indirectly interacts with the wheel hub, such as the first abutting portion 110, the second abutting portion 120, the first connecting arm 141, the second connecting arm 142, or the rotating member 131. The pressure sensor is used to monitor pressure changes in the driving cylinder. Specifically, for example, when the pressure sensor is connected to the driving cylinder, it monitors the internal pressure of the cylinder in real time and adjusts the cylinder input pressure through a feedback mechanism to ensure smooth and accurate movement of the first abutting portion 110 and the second abutting portion 120. For example, when the distance between the first abutting portion 110 and the second abutting portion 120 needs to be increased, the driving cylinder increases pressure to rotate the rotating member 131 clockwise; conversely, it rotates counterclockwise to reduce the distance between the two. This design not only ensures operational precision but also improves the safety and reliability of the device.

[0048] It will be appreciated that in some embodiments, in addition to using traditional mechanical pressure sensors, electronic pressure sensors may also be employed. Electronic pressure sensors offer higher accuracy and response speed, providing faster feedback on pressure changes within the cylinder. This enables the entire system to react more quickly, improving its dynamic performance and making it particularly suitable for high-frequency operation.

[0049] Reference Figure 2 、 Figure 5 and Figure 6 In some embodiments, both the first and second abutting portions 110, 120 are configured with curved surfaces to better conform to the inner shape of the rim. This curved design increases the contact area, reduces localized stress concentration, and helps protect the rim from damage. Furthermore, the first and second abutting portions 110, 120 can also have elastic properties, allowing them to adapt to rims of varying sizes and shapes during the clamping process, providing more flexible and reliable positioning.

[0050] The choice of elastic material is crucial; it must ensure sufficient rigidity to maintain structural stability while also possessing a degree of flexibility to deform and adapt to varying contact surfaces. Common choices include highly elastic materials such as rubber, silicone, PU leather, and PA. These materials offer not only excellent compressive strength but also exceptional wear and corrosion resistance. The design principle of the elastic structure leverages the material's inherent elasticity and resilience to effectively clamp rims of varying sizes, preventing damage caused by hard contact.

[0051] It will be appreciated that, in some embodiments, the arcuate surfaces of the first and second abutting portions 110, 120 may be composed of multiple small arcuate surfaces with adjustable angles. The angle of each small arcuate surface can be independently adjusted to accommodate rims of different shapes. For example, certain specially designed rims may have irregular inner wall profiles. By adjusting the angles of each small arcuate surface, the first and second abutting portions 110, 120 can be perfectly aligned with the inner wall of the rim, ensuring accurate and stable positioning. Furthermore, the first abutting portion 110 comprises a main body and a plurality of rotatable small blocks with arcuate surfaces. When the first abutting portion 110 applies pressure to the inner side of the rim wall, the small blocks with arcuate surfaces rotate relative to the main body of the first abutting portion 110 to better conform to the shape of the inner wall of the hub, thereby providing better protection for the hub. The design of the second abutting portion 120 is similar and will not be further described here.

[0052] It is understood that in some embodiments, the elastic portions of the first and second abutting portions 110, 120 can be made of a composite material, namely, a metal substrate coated with an elastic material. The metal substrate provides the necessary support strength, while the elastic material provides cushioning and adaptability to the various rim shapes. This composite structure combines the advantages of both, maintaining sufficient rigidity to withstand high clamping forces while providing good flexibility to accommodate complex operating conditions. Furthermore, the use of composite materials improves the overall durability of the components and reduces maintenance costs.

[0053] It is understandable that, in some embodiments, the first supporting portion 110 and the second supporting portion 120 may be made of elastic material themselves, or may be separately connected to an elastic structure, such as a spring, to achieve elasticity.

[0054] Reference Figures 1 to 13 , the embodiment of the second aspect of the present invention provides a wheel hub detection device. Figure 1 In some embodiments, the wheel hub detection device includes a wheel hub inner support fixing device 100, a rotating assembly 200, a lifting assembly 300 and a detection system. Figures 2 to 6 The wheel hub inner support fixing device 100 includes a first abutting portion 110 and a second abutting portion 120, which are connected to a driving portion 130 via a transmission portion 140. The wheel hub inner support fixing device 100 is adapted to extend into the interior of the wheel hub and securely clamp the wheel hub by adjusting the positions of the first abutting portion 110 and the second abutting portion 120.

[0055] Reference Figure 13 The rotating assembly 200 is connected to the wheel hub internal support fixture 100 and is used to drive the wheel hub internal support fixture 100 to rotate in a first direction. The rotating assembly 200 typically consists of a motor, a reducer, and a rotating platform 210. The rotating platform 210 is used to support the wheel hub internal support fixture 100. The motor provides power, and the reducer is used to adjust the speed to suit different working requirements. When a full-scale inspection of the wheel hub is required, the rotating assembly 200 can drive the wheel hub internal support fixture 100 and its clamped wheel hub to rotate 360 ​​degrees.

[0056] Of course, in some embodiments, to facilitate the rotation of the wheel hub, the wheel hub detection device further includes rollers. When the rotation assembly 200 drives the wheel hub inner support fixing device 100 to rotate, if the first abutting portion 110 and the second abutting portion 120 position the wheel hub, the wheel hub will also rotate. In this case, the rollers are added so that the wheel hub rolls on the rollers during rotation, thereby facilitating the rotation of the wheel hub.

[0057] Reference Figure 1 and Figures 7 to 12The jacking assembly 300 is connected to the bottom of the rotating assembly 200 and is used to drive the entire device to move along the first direction. The jacking assembly 300 usually adopts a hydraulic or electric push rod design, which can accurately control the rising and falling distances to ensure that the hub internal support fixing device 100 accurately penetrates the hub. In addition, the jacking assembly 300 can also adjust the height position of the hub as needed during the detection process to facilitate the operation of the detection system. For example, the jacking assembly 300 includes a jacking inner cylinder 310, a jacking outer cylinder 320 and a jacking platform 330. The jacking outer cylinder 320 is connected to the jacking inner cylinder 310 by means of a gear rack meshing. The end of the jacking outer cylinder 320 is connected to the jacking platform 330. The jacking platform 330 is used to carry the rotating assembly 200 and the hub internal support fixing device 100. The jacking outer cylinder 320 slides relative to the jacking inner cylinder 310 to drive the hub internal support fixing device 100 to extend into the hub along the first direction.

[0058] Of course, in some embodiments, in order to facilitate the movement of the jacking assembly 300, the wheel hub detection equipment also includes a moving assembly, which is used to drive the jacking assembly 300, the rotating assembly 200, and the hub inner support fixing device 100 to move to a specific position, such as below the hub axis, and then the jacking assembly 300 drives the hub inner support fixing device 100 to move upward so that the first supporting portion 110 and the second supporting portion 120 extend into the inner side of the rim wall.

[0059] The inspection system, installed above or around the wheel hub, is used to obtain various wheel hub information, including dimensional measurement and surface defect detection. Using laser scanners, cameras, or other sensor technologies, the inspection system collects data in real time and processes and analyzes it to assess the wheel hub's quality.

[0060] In some embodiments, the detection system can also integrate machine vision technology and use high-resolution cameras and image processing software to perform detailed inspections on the surface of the hub. For example, by taking photos of the hub from various angles and using algorithms to identify any slight cracks or deformations, this non-contact detection method not only improves efficiency but also reduces human error. The detection method of the visual system is already very mature in the prior art and will not be described in detail here. The present application uses the rotating assembly 200 and the hub internal support fixing device 100 to make the hub rotate one or more circles around the first direction, so that the detection system can perform more comprehensive detection of the hub.

[0061] It is understood that in some embodiments, to further improve detection accuracy, 3D scanning technology can be incorporated into the detection system. A 3D scanner can quickly generate a 3D model of the wheel hub. By analyzing this data, it is possible to more accurately determine whether the wheel hub has manufacturing deviations or damage. This method is particularly suitable for complex wheel hub shapes, such as lightweight alloy wheels used in high-performance sports cars.

[0062] The embodiment of the third aspect of the present invention provides a wheel hub detection method, referring to Figure 14 In some embodiments, the wheel hub detection method includes the following steps: S101: The lifting assembly 300 drives the wheel hub inner support fixing device 100 to extend into the wheel hub; S103: The first abutting portion 110 and the second abutting portion 120 both abut against the inner wall of the rim of the wheel hub; S105: The rotating assembly 200 drives the wheel hub inner support fixing device 100 to rotate, so as to rotate the wheel hub; S107: The detection system obtains information about the wheel hub.

[0063] Specifically, first, the lifting assembly 300 drives the hub inner support fixture 100 to move upward until it penetrates into the interior of the hub. At this time, the first abutting portion 110 and the second abutting portion 120 are in a retracted state so as to smoothly enter the interior space of the hub.

[0064] Next, the drive unit 130 is activated, causing the first and second abutting portions 110, 120 to expand in the second direction until they are both tightly attached to the inner wall of the rim. Because the first and second abutting portions 110, 120 are elastic and have curved surfaces, they can effectively adapt to rims of varying diameters and profiles, ensuring a good clamping effect.

[0065] Subsequently, the rotating assembly 200 begins to rotate the hub inner support fixture 100 and the clamped hub in a first direction. The rotation speed can be adjusted according to specific testing requirements. In this way, the detection system can obtain comprehensive information about the hub from multiple angles.

[0066] Finally, the inspection system activates, utilizing various sensors (such as laser rangefinders and cameras) to perform a detailed inspection of the wheel hub. For example, it can scan the hub surface to detect scratches, dents, or other defects; it can also measure variations in the hub's inner and outer diameters to assess manufacturing accuracy. All collected data is transmitted to a central processing unit for comprehensive analysis, ultimately generating a detailed inspection report.

[0067] It is understood that in some embodiments, the detection system may also be equipped with an automatic fault diagnosis module. Based on pre-set standard parameters and actual test results, this module can automatically identify potential problems with the wheel hub and provide corresponding repair suggestions. For example, if a stress concentration point is detected in a certain area of ​​the wheel hub, the module will prompt the structural strength of that area to prevent the risk of future fracture.

[0068] It is understood that in some embodiments, to meet the requirements for efficient testing in large-scale production environments, the wheel hub testing equipment can be configured with a multi-station system. Each station is equipped with independent wheel hub internal support fixtures 100, rotation assemblies 200, lifting assemblies 300, and testing systems, enabling simultaneous testing of multiple wheel hubs. This not only significantly improves work efficiency but also reduces the time required to test a single wheel hub. Furthermore, the stations can be interconnected via a network, enabling data sharing and unified management.

[0069] Reference Figures 1 to 14 Furthermore, in some embodiments, the wheel hub detection method of the present application is as follows: After the wheel hub is in place, it is transferred to the top of the rotating assembly 200 of the wheel hub detection equipment. The servo motor of the jacking assembly 300 drives the lifting bevel gear to rotate counterclockwise, thereby driving the inner cylinder of the jacking assembly 300 to rise. The rise of the inner cylinder of the jacking assembly 300 drives the rotating assembly 200 and the wheel hub inner support fixture 100 to rise. After the wheel hub inner support fixture 100 rises to a preset height, the cylinder of the driving part 130 drives the rotating block and the rotating block connecting plate to rotate counterclockwise, thereby driving the connecting arm of the transmission part 140 to move to both sides along with the slider until the first supporting part 110 and the second supporting part 120 of the wheel hub inner support fixture 100 press against the inner wall of the wheel hub, and the cylinder stops running. At this time, the first supporting part 110 and the second supporting part 120 firmly press against the inner wall of the wheel hub, thereby achieving the positioning of the wheel hub.

[0070] Subsequently, the servo motor of the rotating assembly 200 drives the rotating platform 210 and the connecting plate of the rotating platform 210 to rotate, thereby driving the wheel hub inner support fixing device 100 and the wheel hub to rotate together. After the wheel hub rotates to a predetermined number of circles, the servo motor stops driving and resets to the initial zero angle. At this time, the cylinder of the driving part 130 drives the rotating block and the rotating block connecting plate to rotate clockwise, thereby driving the connecting arm of the transmission part 140 to move inward along with the slider, returning to the initial state, and the cylinder stops running. Finally, the servo motor of the jacking assembly 300 drives the lifting bevel gear to rotate clockwise, driving the inner cylinder of the jacking assembly 300 to descend, causing the rotating assembly 200 and the wheel hub inner support fixing device 100 to descend to the initial position.

[0071] In summary, the present application can adapt to wheels of various sizes, provides good protection for the wheels, and has high work efficiency and comprehensive detection.

[0072] The above are only preferred embodiments of the present invention and are not intended to limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention's description and drawings, or direct / indirect applications in other related technical fields, within the scope of the present invention are included in the patent protection scope of the present invention.

Claims

1. A wheel hub inner support fixing device, suitable for fixing a wheel hub, wherein the wheel hub comprises a rim, and the rim has a peripheral wall arranged circumferentially around the axis of the wheel hub, characterized in that: include: The first supporting part, a second abutting portion, wherein the second abutting portion and the first abutting portion are both adapted to extend into the wheel hub along a first direction, and the second abutting portion is movably connected to the first abutting portion; In which, the second abutting portion is configured to be able to move away from the first abutting portion along the second direction, so that the first abutting portion and the second abutting portion are both suitable for abutting the peripheral wall, and / or, the second abutting portion is configured to be able to approach the first abutting portion along the second direction, so that the first abutting portion and the second abutting portion are both suitable for being spaced from the wheel hub, and the second direction is perpendicular to the first direction.

2. The wheel hub inner support fixing device according to claim 1, characterized in that: The wheel hub inner support fixing device includes a driving part and a transmission part. The first supporting part and the second supporting part are both connected to the driving part through the transmission part. The driving part is configured to drive the second supporting part away from the first supporting part or close to the first supporting part along the second direction.

3. The wheel hub inner support fixing device according to claim 2, characterized in that: The transmission portion includes a first connecting arm and a second connecting arm, the first abutting portion is connected to one end of the first connecting arm along the second direction, and the second abutting portion is connected to one end of the second connecting arm along the second direction away from the first abutting portion; The driving portion includes a rotating member, the first connecting arm and the second connecting arm are respectively connected to opposite sides of the rotating member, and the rotating member rotates circumferentially around the first direction to make the first abutting portion and the second abutting portion approach or move away from each other.

4. The wheel hub inner support fixing device according to claim 3, characterized in that: The first supporting portion is rotatably connected to the first connecting arm, the second supporting portion is rotatably connected to the second connecting arm, the first connecting arm and the second connecting arm are both rotatably connected to the rotating member, the extension directions of the first connecting arm and the second connecting arm are parallel, and the rotating member is clamped between the first connecting arm and the second connecting arm along a direction perpendicular to the extension direction of the first connecting arm, and the wheel hub inner support fixing device includes a limiting member, which is used to limit the movement of the first connecting arm and the second connecting arm along the second direction.

5. The wheel hub inner support fixing device according to claim 4, characterized in that: The position-limiting member includes a guide rail and a first slider and a second slider respectively connected to the guide rail in a sliding manner. The first slider is connected to the first abutting portion, and the second slider is connected to the second abutting portion.

6. The wheel hub inner support fixing device according to claim 2, characterized in that: The driving portion includes a driving cylinder connected to the rotating member, and the driving cylinder is used to drive the first rotating member to rotate around the first direction.

7. The wheel hub inner support fixing device according to claim 6, characterized in that: The driving unit includes a pressure sensor connected to the driving cylinder, and the pressure sensor is used to determine the pressure of the driving cylinder.

8. The wheel hub inner support fixing device according to claim 1, characterized in that: The surface of the first abutting portion abutting against the wheel hub is configured as a cambered surface, and the surface of the second abutting portion abutting against the wheel hub is configured as a cambered surface; and / or, The first supporting portion is elastic, and the second supporting portion is elastic.

9. A wheel hub detection device, characterized in that: The wheel hub inner support fixing device comprises the wheel hub inner support fixing device according to any one of claims 1 to 6, and the wheel hub moving device further comprises: a rotating assembly connected to the wheel hub inner support fixing device to drive the wheel hub inner support fixing device to rotate circumferentially around a first direction; a jacking assembly connected to the rotating assembly, wherein the jacking assembly is capable of driving the rotating assembly and the wheel hub inner support fixing device to move along the first direction; The detection system is suitable for detecting the wheel hub sleeved on the wheel hub inner support fixing device.

10. A wheel hub detection method, characterized in that: For the wheel hub detection device according to claim 9, the wheel hub detection method comprises: The jacking assembly drives the hub inner support fixing device to extend into the hub; The first abutting portion and the second abutting portion both abut against the inner wall of the rim of the hub; The rotating assembly drives the wheel hub inner support fixing device to rotate, so as to rotate the wheel hub; The detection system obtains information of the wheel hub.

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