Flex testing device and flex testing method of wheel spoke

Abstract

The invention discloses a flex testing device and a flex testing method of a wheel spoke, and relates to the technical field of testing equipment, and the flex testing device comprises a driving assembly and at least one grabbing assembly. The driving assembly is used for providing driving force; the grabbing assembly is connected with the driving assembly, the grabbing assembly comprises a clamping part and a transmission mechanism, the clamping part is connected with one end of the transmission mechanism, the other end of the transmission mechanism is connected with the driving assembly, and the transmission mechanism can drive the clamping part to reciprocate along a preset track; the clamping parts can clamp and lock a preset position of a to-be-tested component, the to-be-tested component is fixedly connected to a preset area or another clamping part, and the clamping parts can repeatedly bend or twist the to-be-tested component in the moving process. According to the invention, the flex test of the part can be carried out more conveniently and quickly, the adaptability is wider, and flex tests can be carried out on various types of parts.

Description

Technical Field

[0001] The present application relates to the technical field of testing equipment, and in particular to a flexure testing device and a flexure testing method for wheel spokes. Background Art

[0002] In the relevant technical field, flexure test equipment is mainly used to evaluate and test the flexure performance of various materials under repeated bending or torsion conditions. For example, in the automotive industry, the flexure test of wheel spokes cannot be separated from specially designed flexure test equipment. These equipment can simulate the stress and strain that the material is subjected to during actual use, thereby ensuring the reliability and durability of materials and components in long-term use.

[0003] However, existing flexure test equipment has certain limitations in terms of test range and flexibility. They can usually only test specific types of parts and cannot cover a variety of parts of different shapes and sizes. This means that in order to meet diverse testing needs, testing organizations or manufacturers have to purchase multiple flexure test equipment of different specifications. This not only increases the purchase cost of the equipment, but also increases the complexity of maintenance and operation. Summary of the invention

[0004] The embodiments of the present application provide a flexure testing device and a flexure testing method for wheel spokes, which can more conveniently and quickly perform flexure testing on components and have wider adaptability, and can perform flexure testing on various types of components.

[0005] In a first aspect, an embodiment of the present application provides a flexure testing device, which includes a drive assembly and at least one gripping assembly.

[0006] The driving assembly is used to provide driving force; at least one grabbing assembly is connected to the driving assembly, the grabbing assembly includes a clamping part and a transmission mechanism, the clamping part is connected to one end of the transmission mechanism, the other end of the transmission mechanism is connected to the driving assembly, and the transmission mechanism can drive the clamping part to reciprocate along a preset trajectory;

[0007] The clamping part can clamp and lock the preset position of the component to be tested. The component to be tested is fixedly connected to the preset area or another clamping part. The clamping part can repeatedly bend or twist the component to be tested during movement.

[0008] The above structure can make the installation of the component to be tested more flexible, and thus the flexure test device can be adapted to multiple types of components to be tested at the same time, thereby improving the test range of the flexure test device and increasing the adaptability of the flexure test device. The above structure can perform flexure testing of components more conveniently and quickly, and has a wider adaptability, and can perform flexure testing on multiple types of components.

[0009] The main function of the drive assembly is to provide the necessary driving force to ensure the smooth progress of the entire test process. At least one gripping assembly is connected to the drive assembly to ensure the coordinated work between the two. The gripping assembly itself consists of a clamping part and a transmission mechanism, wherein the clamping part is connected to one end of the transmission mechanism, and the other end of the transmission mechanism is connected to the drive assembly. This design enables the transmission mechanism to effectively drive the clamping part to reciprocate along a pre-set trajectory.

[0010] The function of the clamping portion is to firmly clamp and lock the preset position of the part to be tested, ensuring that the part to be tested remains stable during the test. The part to be tested can be fixedly connected to a preset area, or connected to another clamping portion. When the part to be tested is fixedly connected to a preset area, the preset area usually refers to different positions on the support frame, and these positions can be adjusted according to different models of parts to be tested. In addition, the part to be tested can also be fixedly connected to another clamping portion. In this way, the flexure test device will be equipped with at least two gripping components, so that multiple parts to be tested can be tested at the same time.

[0011] This structural design makes the installation process of the components to be tested more flexible and varied, and thus enables the flexure test device to adapt to a variety of different types of components to be tested. This flexibility significantly increases the test range of the flexure test device, allowing it to cover more types of components to be tested. At the same time, this design also greatly increases the adaptability of the flexure test device, enabling it to better meet the needs of different users, thereby showing higher practicality and efficiency in actual applications.

[0012] In some examples, two gripping components are provided, namely a first gripping component and a second gripping component.

[0013] The first grabbing assembly is connected to the driving assembly, and the first grabbing assembly includes a first clamping part and a first transmission mechanism, the first clamping part is connected to one end of the first transmission mechanism, and the other end of the first transmission mechanism is connected to the driving assembly, and the first transmission mechanism can drive the first clamping part to reciprocate along the first trajectory;

[0014] The second grabbing assembly is connected to the driving assembly, and the second grabbing assembly includes a second clamping part and a second transmission mechanism, the second clamping part is connected to one end of the second transmission mechanism, and the other end of the second transmission mechanism is connected to the driving assembly, and the second transmission mechanism can drive the second clamping part to reciprocate along the second trajectory;

[0015] The first clamping portion and the second clamping portion move independently of each other, or the first clamping portion and the second clamping portion move jointly with each other;

[0016] The first clamping part can clamp and lock the first position of the component to be tested, and the second clamping part can clamp and lock the second position of the component to be tested. The first clamping part and the second clamping part can repeatedly bend or twist the component to be tested during movement.

[0017] Wherein, at least part of the transmission parts in the first transmission mechanism and the second transmission mechanism are telescopic parts, and the telescopic parts are locked at the length or position after telescoping.

[0018] The first gripping assembly is capable of performing a specific task by being connected to the driving assembly. Specifically, the first gripping assembly includes a first clamping portion and a first transmission mechanism. One end of the two portions are connected to each other, and the other end of the first transmission mechanism is connected to the driving assembly. This structural design enables the first transmission mechanism to effectively drive the first gripping portion to reciprocate along a predetermined first trajectory.

[0019] Similarly, the second grabbing assembly is also connected to the driving assembly. It includes a second clamping part and a second transmission mechanism. One end of these two parts is also connected together, and the other end of the second transmission mechanism is connected to the driving assembly. This design enables the second transmission mechanism to drive the second clamping part to reciprocate along a predetermined second trajectory.

[0020] It is worth noting that the first clamping part and the second clamping part can move independently or in conjunction. The flexibility of this design enables the first clamping part to clamp and lock the first position of the component to be tested, while the second clamping part can clamp and lock the second position of the component to be tested. During the movement, the first clamping part and the second clamping part can repeatedly bend or twist the component to be tested.

[0021] Through the cooperation of the first clamping part and the second clamping part, the installation flexibility of the component to be tested can be significantly improved. This flexibility enables the flexure test device to adapt to a variety of different types of components to be tested, thereby greatly expanding the test range of the flexure test device. In addition, this design also increases the adaptability of the flexure test device, allowing it to be more widely used in various different testing requirements.

[0022] In some examples, the first transmission mechanism includes a first transmission rod and a first connecting rod, one end of the first transmission rod is connected to the driving assembly, the other end of the first transmission rod is connected to the first connecting rod, and the end of the first connecting rod facing away from the first transmission rod is connected to the first clamping portion;

[0023] The second transmission mechanism includes a second transmission rod and a second connecting rod, one end of the second transmission rod is connected to the driving assembly, the other end of the second transmission rod is connected to the second connecting rod, and the end of the second connecting rod away from the second transmission rod is connected to the second clamping part.

[0024] The first transmission mechanism may be composed of a first transmission rod and a first connecting rod. Specifically, one end of the first transmission rod is connected to the drive assembly, and the other end of the first transmission rod is connected to the first connecting rod. The end of the first connecting rod, that is, the end away from the first transmission rod, is connected to the first clamping portion. Similarly, the second transmission mechanism is composed of a second transmission rod and a second connecting rod. One end of the second transmission rod is also connected to the drive assembly, and the other end of the second transmission rod is connected to the second connecting rod. The end of the second connecting rod, that is, the end away from the second transmission rod, is connected to the second clamping portion. Through this design, the first clamping portion and the second clamping portion can cooperate with each other, making the installation process of the component to be tested more flexible and convenient. In this way, the flexure test device can adapt to a variety of different types of components to be tested, thereby significantly improving the test range of the flexure test device. In addition, this design also increases the adaptability of the flexure test device, enabling it to better meet different test requirements and improve the versatility and practicality of the equipment.

[0025] Based on the above embodiment, at least one of the first transmission rod and the first connecting rod can be set as a telescopic member, and the telescopic length of the first transmission rod or the first connecting rod can be adjusted and locked as needed. The lengths of the first transmission rod and the first connecting rod can be adjusted and locked accordingly as needed, and the new activity trajectory generated by the first clamping portion can be predicted through precise conditions to facilitate subsequent flexion tests. At least one of the corresponding second transmission rod and the second connecting rod can also be set as a telescopic member, similar to the setting method of the first transmission rod and the first connecting rod, which will not be repeated here.

[0026] In some examples, the driving assembly includes a first rocker adapted to the driving member and the first transmission mechanism, one end of the first rocker is fixedly connected to the driving member, and the first transmission mechanism includes a first transmission rod, a first push rod, a first push rod, and a first connecting rod;

[0027] One end of the first transmission rod is movably connected to the other end of the first rocker, the other end of the first transmission rod is movably connected to one end of the first push rod, the other end of the first push rod is movably connected to one end of the first push rod, the other end of the first push rod is fixedly connected to one end of the first connecting rod, and the other end of the first connecting rod is movably connected to the first clamping portion;

[0028] The driving assembly also includes a second rocker matched with the second transmission mechanism, one end of the second rocker is fixedly connected to the driving member, and the second transmission mechanism includes a second transmission rod, a second push rod, a second push rod and a second connecting rod;

[0029] One end of the second transmission rod is movably connected to the other end of the second rocker, the other end of the second transmission rod is movably connected to one end of the second push rod, the other end of the second push rod is movably connected to one end of the second push rod, the other end of the second push rod is fixedly connected to one end of the second connecting rod, and the other end of the second connecting rod is movably connected to the second clamping part.

[0030] The driving assembly includes a driving member and a first rocker arm matched therewith. One end of the first rocker arm is connected to the driving member by a fixed connection, ensuring stable transmission of force between the two. The first transmission mechanism is composed of multiple parts, including a first transmission rod, a first push rod, a first push rod and a first connecting rod. These parts cooperate with each other by a movable connection or a fixed connection to form a complete transmission chain.

[0031] Specifically, one end of the first transmission rod is connected to the other end of the first rocker by a movable connection, so that the first transmission rod can swing within a certain range. The other end of the first transmission rod is connected to one end of the first push rod by a movable connection, allowing the first push rod to swing within a certain angle. The other end of the first push rod is connected to one end of the first push rod by a movable connection, so that the first push rod can move within a certain range. The other end of the first push rod is connected to one end of the first connecting rod by a fixed connection, ensuring stable transmission of force between the two. Finally, the other end of the first connecting rod is connected to the first clamping part by a movable connection, so that the first clamping part can move within a certain range, thereby realizing flexible clamping of the component to be tested.

[0032] In addition, the driving assembly also includes a second rocker adapted to the second transmission mechanism. One end of the second rocker is connected to the driving member by a fixed connection, ensuring stable transmission of force between the two. The second transmission mechanism is also composed of multiple parts, including a second transmission rod, a second push rod, a second push rod and a second connecting rod. These parts cooperate with each other by a movable connection or a fixed connection to form a complete transmission chain.

[0033] Specifically, one end of the second transmission rod is connected to the other end of the second rocker by a movable connection, so that the second transmission rod can swing within a certain range. The other end of the second transmission rod is connected to one end of the second push rod by a movable connection, allowing the second push rod to swing within a certain angle. The other end of the second push rod is connected to one end of the second push rod by a movable connection, so that the second push rod can move within a certain range. The other end of the second push rod is connected to one end of the second connecting rod by a fixed connection, ensuring stable transmission of force between the two. Finally, the other end of the second connecting rod is connected to the second clamping part by a movable connection, so that the second clamping part can move within a certain range, thereby realizing flexible clamping of the component to be tested.

[0034] Through the cooperation of the first clamping part and the second clamping part, the installation of the component to be tested can be more flexible, so that the flexure test device can be adapted to multiple types of components to be tested at the same time. This design not only improves the test range of the flexure test device, but also increases the adaptability of the flexure test device, so that it can better meet different test requirements.

[0035] Based on the above-mentioned embodiment, at least one of the first rocker, the first transmission rod, the first top rod, the first push rod and the first connecting rod can be set as a telescopic member, and the telescopic length of each of the first rocker, the first transmission rod, the first top rod, the first push rod and the first connecting rod can be adjusted and locked as needed. The lengths of the first rocker, the first transmission rod, the first top rod, the first push rod and the first connecting rod can be adjusted and locked one by one as needed, and the new activity trajectory generated by the first clamping part can be obtained through precise conditions. Predictable activity trajectory can be obtained to facilitate subsequent flexion tests. At least one of the corresponding second rocker, the second transmission rod, the second top rod, the second push rod and the second connecting rod can also be set as a telescopic member, which is similar to the setting method of the first rocker, the first transmission rod, the first top rod, the first push rod and the first connecting rod, and will not be repeated here.

[0036] In some examples, the first clamping portion is hinged to the first connecting rod, and the second clamping portion is hinged to the second connecting rod.

[0037] The first clamping part and the first connecting rod can be connected together by a hinged connection, and similarly, the second clamping part and the second connecting rod can be connected together by a hinged connection. This hinged connection can take many forms, one of which is a chain hinge, which is similar to our common hinge structure and has higher stability in a specific direction; the other is a ball hinge, which has better adaptability and can adapt to more movement directions. This application takes a chain hinge as an example for illustrative description.

[0038] In some examples, the first clamping portion includes a first fixing plate and a first locking plate, the first fixing plate and the first locking plate are lockably connected via a fixing member, and the first fixing plate and the first locking plate can cooperate to clamp and lock the first position of the component to be tested;

[0039] The second clamping portion includes a second fixing plate and a second locking plate, the second fixing plate and the second locking plate are lockably connected via a fixing member, and the second fixing plate and the second locking plate can cooperate to clamp and lock the second position of the component to be tested.

[0040] The first clamping portion is composed of a first fixing plate and a first locking plate. Specifically, the first fixing plate and the first locking plate are tightly and lockably connected together through a series of fixing members. This structure enables the first fixing plate and the first locking plate to work together to effectively clamp and lock the component to be measured in a predetermined first position. In this way, the component to be measured can be firmly fixed to ensure accuracy and stability during the measurement process.

[0041] Similarly, the second clamping part is composed of a second fixing plate and a second locking plate. The second fixing plate and the second locking plate are also lockably connected together through a series of fixing members, so that the second fixing plate and the second locking plate can cooperate with each other to clamp and lock the component to be measured in a predetermined second position. This design ensures the accurate clamping and locking of the component to be measured at different positions, further improving the reliability and flexibility of the entire measurement system.

[0042] In some examples, when there are at least two gripping assemblies, the driving assembly includes a driving motor and a converter, the driving motor is connected to the converter, and the converter can convert the output end of the driving motor into at least two output sub-ends, each of which is connected to a gripping assembly;

[0043] Alternatively, the drive assembly includes at least two drive motors, each drive motor being connected to a gripping assembly.

[0044] The number of the grabbing components is set to at least two. In this case, the driving component includes a driving motor and a converter. The driving motor is connected to the converter, and the converter is used to convert the output end of the driving motor into at least two output sub-ends. Each output sub-end is respectively connected to a grabbing component, thereby realizing the driving of multiple grabbing components.

[0045] In addition, there is another possible configuration in which the drive assembly includes at least two independent drive motors, each of which is directly connected to a gripping assembly, so as to achieve a separate drive for each gripping assembly. Such a design can ensure that each gripping assembly can be operated independently, improving the flexibility and efficiency of the system.

[0046] In some examples, the drive assembly further includes a transmission disposed between the drive motor and the gripping assembly.

[0047] The drive assembly not only includes a drive motor, but is further equipped with a transmission. The transmission is designed and installed between the drive motor and the gripping assembly to form a complete transmission system. By introducing the transmission, the control of the drive assembly becomes more diverse and sophisticated. This design makes the test method of the parts to be tested more flexible and can be adjusted accordingly according to different test requirements. Therefore, this improvement significantly improves the test range of the flexure test device, enabling it to cover more types of parts to be tested. At the same time, this also increases the adaptability of the flexure test device, enabling it to better adapt to various different test environments and conditions, thereby improving the overall test efficiency and accuracy.

[0048] In some examples, the flexure testing device further includes a support frame, and the drive assembly and the gripping assembly are both disposed on the support frame;

[0049] At least one auxiliary fixing structure is arranged on the support frame. When the volume of the component to be tested is larger than a preset size, the auxiliary fixing structure clamps and locks a part of the position of the component to be tested.

[0050] The support frame is equipped with a drive assembly and a gripper assembly. These assemblies are carefully arranged in appropriate positions on the support frame to ensure the stability of the device and the convenience of operation. The design of the support frame is not only to carry these assemblies, but also to take into account the overall structural strength and stability.

[0051] In order to accommodate different sizes of parts to be tested, at least one auxiliary fixing structure is specially designed on the support frame. When the volume of the part to be tested exceeds the preset size, these auxiliary fixing structures can effectively clamp and lock part of the part to be tested. This design ensures that the part to be tested can be kept in the proper position during the flexure test, thereby ensuring the accuracy and reliability of the test results.

[0052] In a second aspect, an embodiment of the present application provides a method for testing the flexure of a wheel spoke, using the flexure testing device as described above to perform the flexure test of the wheel spoke.

[0053] The flexure test method of the wheel spoke uses the above-mentioned flexure test device to perform the flexure test of the wheel spoke. The specific test methods include:

[0054] First, the wheel spoke to be tested is fixed on the clamping part to ensure its stability and accuracy. Then, the drive assembly starts working, and the transmission mechanism drives the clamping part to reciprocate along the preset trajectory. In this process, the clamping part will repeatedly bend or twist the wheel spoke to simulate the stress conditions in actual use. During the test, the deformation and fatigue of the wheel spoke can be monitored in real time to evaluate its performance and durability. In this way, the reliability and safety of the wheel spoke in actual use can be effectively tested to ensure that it meets the relevant standards and requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0056] Figure 1 It is a structural schematic diagram of a flexure testing device in one embodiment of the present application;

[0057] Figure 2 It is a structural schematic diagram of the flexure testing device in one embodiment of the present application from another perspective;

[0058] Figure 3 In the embodiment Figure 2 A partial enlarged view of the first clamping part at point A in the middle.

[0059] Reference numerals:

[0060] 100, driving assembly; 110, driving motor; 120, converter; 130, first rocker; 140, second rocker; 200, first grabbing assembly; 210, first clamping part; 211, first fixing plate; 212, first locking plate; 220, first transmission rod; 230, first push rod; 240, first push rod; 250, first connecting rod; 300, second grabbing assembly; 310, second clamping part; 311, second fixing plate; 312, second locking plate; 320, second transmission rod; 330, second push rod; 340, second push rod; 350, second connecting rod; 400, supporting frame; 410, auxiliary fixing structure; 420, locking ear plate; 500, guide rail assembly; 510, guide rail structure; 520, slider; 600, guide assembly. DETAILED DESCRIPTION

[0061] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0062] To solve the above technical problems, please refer to Figure 1-Figure 3 As shown, the first aspect of the present application proposes a flexure testing device, which can perform flexure testing on components more conveniently and quickly, and has wider adaptability and can perform flexure testing on various types of components.

[0063] Reference Figure 1-Figure 3 As shown, in some examples, the flexure testing apparatus includes a drive assembly 100 and at least one gripping assembly.

[0064] The driving assembly 100 is used to provide driving force; at least one grabbing assembly is connected to the driving assembly 100, and the grabbing assembly includes a clamping part and a transmission mechanism, the clamping part is connected to one end of the transmission mechanism, and the other end of the transmission mechanism is connected to the driving assembly 100, and the transmission mechanism can drive the clamping part to reciprocate along a preset trajectory;

[0065] The clamping part can clamp and lock the preset position of the part to be tested. The part to be tested is fixedly connected to the preset area or another clamping part. The clamping part can repeatedly bend or twist the part to be tested during the movement. The above-mentioned preset position can be any position of the part to be tested, usually the edge position of the part to be tested. When the part to be tested is fixedly connected to the preset area, the preset area can correspond to different positions on the support frame 400, and different positions can correspond to different models of parts to be tested. Alternatively, the part to be tested can be fixedly connected to another clamping part, and the flexure test device will have at least two gripping components at the same time.

[0066] The above structure can make the installation of the component to be tested more flexible, and thus the flexure test device can be adapted to multiple types of components to be tested at the same time, thereby improving the test range of the flexure test device and increasing the adaptability of the flexure test device. The above structure can perform flexure testing of components more conveniently and quickly, and has a wider adaptability, and can perform flexure testing on multiple types of components.

[0067] The main function of the drive assembly 100 is to provide the necessary driving force to ensure the smooth progress of the entire test process. At least one gripping assembly is connected to the drive assembly 100 to ensure the coordinated work between the two. The gripping assembly itself consists of a clamping part and a transmission mechanism, wherein the clamping part and one end of the transmission mechanism are connected, and the other end of the transmission mechanism is connected to the drive assembly 100. Such a design enables the transmission mechanism to effectively drive the clamping part to reciprocate along a preset trajectory.

[0068] The function of the clamping portion is to firmly clamp and lock the preset position of the part to be tested, ensuring that the part to be tested remains stable during the test. The part to be tested can be fixedly connected to a preset area, or connected to another clamping portion. When the part to be tested is fixedly connected to a preset area, the preset area generally refers to different positions on the support frame 400, and these positions can be adjusted according to different models of parts to be tested. In addition, the part to be tested can also be fixedly connected to another clamping portion, so that the flexure test device will be equipped with at least two gripping components, so that multiple parts to be tested can be tested at the same time.

[0069] This structural design makes the installation process of the components to be tested more flexible and varied, and thus enables the flexure test device to adapt to a variety of different types of components to be tested. This flexibility significantly increases the test range of the flexure test device, allowing it to cover more types of components to be tested. At the same time, this design also greatly increases the adaptability of the flexure test device, enabling it to better meet the needs of different users, thereby showing higher practicality and efficiency in actual applications.

[0070] Reference Figure 1-Figure 3 As shown, in some examples, two gripping assemblies are provided, namely a first gripping assembly 200 and a first gripping assembly 200 .

[0071] The first grabbing assembly 200 is connected to the driving assembly 100. The first grabbing assembly 200 includes a first clamping portion 210 and a first transmission mechanism. The first clamping portion 210 is connected to one end of the first transmission mechanism, and the other end of the first transmission mechanism is connected to the driving assembly 100. The first transmission mechanism can drive the first clamping portion 210 to reciprocate along a first trajectory.

[0072] The second grabbing assembly 300 is connected to the driving assembly 100. The second grabbing assembly 300 includes a second clamping portion 310 and a second transmission mechanism. The second clamping portion 310 is connected to one end of the second transmission mechanism, and the other end of the second transmission mechanism is connected to the driving assembly 100. The second transmission mechanism can drive the second clamping portion 310 to reciprocate along the second trajectory.

[0073] The first clamping portion 210 and the second clamping portion 310 move independently of each other, or the first clamping portion 210 and the second clamping portion 310 move jointly with each other;

[0074] The first clamping portion 210 can clamp and lock the first position of the component to be tested, and the second clamping portion 310 can clamp and lock the second position of the component to be tested. The first clamping portion 210 and the second clamping portion 310 can repeatedly bend or twist the component to be tested during movement.

[0075] Wherein, at least part of the transmission parts in the first transmission mechanism and the second transmission mechanism are telescopic parts, and the telescopic parts are locked at the length or position after telescoping.

[0076] In these gripping assemblies, at least some of the transmission parts in the first transmission mechanism and the second transmission mechanism are designed as telescopic parts. These telescopic parts can be locked in the length or position after extension, so that the clamping parts with different activity trajectories can be adjusted as needed. The activity trajectory of the first clamping part 210 and the activity trajectory of the second clamping part 310 can be adjusted separately or simultaneously to meet different operating requirements. This design enables the gripping assembly to flexibly cope with various complex operating scenarios and improve work efficiency and precision.

[0077] Of course, the activity trajectory can also be adjusted by using corresponding transmission parts of different lengths as needed, and the specific settings can be made according to needs.

[0078] The first grabbing assembly 200 is capable of performing a specific task by being connected to the driving assembly 100. Specifically, the first grabbing assembly 200 includes a first clamping portion 210 and a first transmission mechanism. One end of the two portions are connected to each other, and the other end of the first transmission mechanism is connected to the driving assembly 100. This structural design enables the first transmission mechanism to effectively drive the first clamping portion 210 to reciprocate along a predetermined first trajectory.

[0079] Similarly, the second grabbing assembly 300 is also connected to the driving assembly 100. It includes a second clamping portion 310 and a second transmission mechanism. One end of the two parts are also connected together, and the other end of the second transmission mechanism is connected to the driving assembly 100. This design enables the second transmission mechanism to drive the second clamping portion 310 to reciprocate along a predetermined second trajectory.

[0080] It is worth noting that the first clamping portion 210 and the second clamping portion 310 can move independently or in conjunction. The flexibility of this design enables the first clamping portion 210 to clamp and lock the first position of the component to be tested, while the second clamping portion 310 can clamp and lock the second position of the component to be tested. During the movement, the first clamping portion 210 and the second clamping portion 310 can repeatedly bend or twist the component to be tested.

[0081] The cooperation between the first clamping portion 210 and the second clamping portion 310 can significantly improve the installation flexibility of the component to be tested. This flexibility enables the flexure test device to be adapted to a variety of different types of components to be tested, thereby greatly expanding the test range of the flexure test device. In addition, this design also increases the adaptability of the flexure test device, allowing it to be more widely used in various different testing requirements.

[0082] In some examples, the first transmission mechanism includes a first transmission rod 220 and a first connecting rod 250, one end of the first transmission rod 220 is connected to the driving assembly 100, the other end of the first transmission rod 220 is connected to the first connecting rod 250, and the end of the first connecting rod 250 away from the first transmission rod 220 is connected to the first clamping portion 210;

[0083] The second transmission mechanism includes a second transmission rod 320 and a second connecting rod 350 , one end of the second transmission rod 320 is connected to the driving assembly 100 , the other end of the second transmission rod 320 is connected to the second connecting rod 350 , and the end of the second connecting rod 350 away from the second transmission rod 320 is connected to the second clamping portion 310 .

[0084] The first transmission mechanism may be composed of a first transmission rod 220 and a first connecting rod 250. Specifically, one end of the first transmission rod 220 is connected to the drive assembly 100, and the other end of the first transmission rod 220 is connected to the first connecting rod 250. The end of the first connecting rod 250, that is, the end away from the first transmission rod 220, is connected to the first clamping portion 210. Similarly, the second transmission mechanism is composed of a second transmission rod 320 and a second connecting rod 350. One end of the second transmission rod 320 is also connected to the drive assembly 100, and the other end of the second transmission rod 320 is connected to the second connecting rod 350. The end of the second connecting rod 350, that is, the end away from the second transmission rod 320, is connected to the second clamping portion 310. Through this design, the first clamping portion 210 and the second clamping portion 310 can cooperate with each other, making the installation process of the component to be tested more flexible and convenient. In this way, the flexure test device can adapt to a variety of different types of components to be tested, thereby significantly improving the test range of the flexure test device. In addition, this design also increases the adaptability of the flexure testing device, enabling it to better meet different testing requirements and improving the versatility and practicality of the equipment.

[0085] Reference Figure 1-Figure 3 As shown, in some examples, the driving assembly 100 includes a first rocker 130 adapted to the driving member and the first transmission mechanism, one end of the first rocker 130 is fixedly connected to the driving member, and the first transmission mechanism includes a first transmission rod 220, a first push rod 230, a first push rod 240 and a first connecting rod 250;

[0086] One end of the first transmission rod 220 is movably connected to the other end of the first rocker 130, the other end of the first transmission rod 220 is movably connected to one end of the first push rod 230, the other end of the first push rod 230 is movably connected to one end of the first push rod 240, the other end of the first push rod 240 is fixedly connected to one end of the first connecting rod 250, and the other end of the first connecting rod 250 is movably connected to the first clamping portion 210;

[0087] The driving assembly 100 further includes a second rocker 140 adapted to the second transmission mechanism, one end of the second rocker 140 is fixedly connected to the driving member, and the second transmission mechanism includes a second transmission rod 320, a second push rod 330, a second push rod 340 and a second connecting rod 350;

[0088] One end of the second transmission rod 320 is movably connected to the other end of the second rocker arm 140, the other end of the second transmission rod 320 is movably connected to one end of the second push rod 330, the other end of the second push rod 330 is movably connected to one end of the second push rod 340, the other end of the second push rod 340 is fixedly connected to one end of the second connecting rod 350, and the other end of the second connecting rod 350 is movably connected to the second clamping portion 310.

[0089] The driving assembly 100 includes a driving member and a first rocker 130 adapted thereto. One end of the first rocker 130 is connected to the driving member by a fixed connection, ensuring stable transmission of force between the two. The first transmission mechanism is composed of multiple parts, including a first transmission rod 220, a first push rod 230, a first push rod 240 and a first connecting rod 250. These parts cooperate with each other by a movable connection or a fixed connection to form a complete transmission chain.

[0090] Specifically, one end of the first transmission rod 220 is connected to the other end of the first rocker 130 by a movable connection, so that the first transmission rod 220 can swing within a certain range. The other end of the first transmission rod 220 is connected to one end of the first push rod 230 by a movable connection, allowing the first push rod 230 to swing within a certain angle. The other end of the first push rod 230 is connected to one end of the first push rod 240 by a movable connection, so that the first push rod 240 can move within a certain range. The other end of the first push rod 240 is connected to one end of the first connecting rod 250 by a fixed connection, ensuring a stable transmission force between the two. Finally, the other end of the first connecting rod 250 is connected to the first clamping portion 210 by a movable connection, so that the first clamping portion 210 can move within a certain range, thereby achieving flexible clamping of the component to be tested.

[0091] In addition, the driving assembly 100 also includes a second rocker 140 adapted to the second transmission mechanism. One end of the second rocker 140 is connected to the driving member by a fixed connection, ensuring stable transmission of force between the two. The second transmission mechanism is also composed of multiple parts, including a second transmission rod 320, a second push rod 330, a second push rod 340 and a second connecting rod 350. These parts cooperate with each other by a movable connection or a fixed connection to form a complete transmission chain.

[0092] Specifically, one end of the second transmission rod 320 is connected to the other end of the second rocker 140 by a movable connection, so that the second transmission rod 320 can swing within a certain range. The other end of the second transmission rod 320 is connected to one end of the second push rod 330 by a movable connection, allowing the second push rod 330 to swing within a certain angle. The other end of the second push rod 330 is connected to one end of the second push rod 340 by a movable connection, so that the second push rod 340 can move within a certain range. The other end of the second push rod 340 is connected to one end of the second connecting rod 350 by a fixed connection, ensuring a stable transmission force between the two. Finally, the other end of the second connecting rod 350 is connected to the second clamping portion 310 by a movable connection, so that the second clamping portion 310 can move within a certain range, thereby achieving flexible clamping of the component to be tested.

[0093] Through the cooperation of the first clamping portion 210 and the second clamping portion 310, the installation of the component to be tested can be more flexible, so that the flexure test device can be adapted to multiple types of components to be tested at the same time. This design not only improves the test range of the flexure test device, but also increases the adaptability of the flexure test device, so that it can better meet different test requirements.

[0094] In order to further improve the transmission stability in each of the above transmission mechanisms, a guide rail assembly 500 can be connected to the first push rod 230. The guide rail assembly 500 includes a guide rail structure 510 and a slider 520. The slider 520 can slide on the guide rail and has only one degree of freedom. The slider 520 is fixedly connected to the outer peripheral side of the first push rod 230. In the process of the first push rod 230 pushing the first push rod 240, the slider 520 can limit the push rod to ensure the stability and accuracy of its motion trajectory.

[0095] Similarly, a guide assembly 600 may also be provided on the first push rod 240. The guide assembly 600 has a guide seat that can be mounted on the support frame 400, and a guide hole is provided on the guide seat. The first push rod 240 is always slidably connected to the guide hole, and through the cooperation between the first push rod 240 and the guide hole, the moving track of the first clamping part 210 can be made more stable and controllable, thereby improving the accuracy of the test.

[0096] The same can also be applied to the second push rod 330 and the second push rod 340. A guide rail assembly 500 can be connected to the second push rod 330, and the guide rail assembly 500 includes a guide rail structure 510 and a slider 520. The slider 520 can slide on the guide rail and has only one degree of freedom. The slider 520 is fixedly connected to the outer peripheral side of the second push rod 330. In the process of the second push rod 330 pushing the second push rod 340, the slider 520 can limit the push rod to ensure the stability and accuracy of its motion trajectory.

[0097] At the same time, a guide assembly 600 may also be provided on the second push rod 340. The guide assembly 600 has a guide seat that can be mounted on the support frame 400, and a guide hole is provided on the guide seat. The second push rod 340 is always slidably connected to the guide hole. Through the cooperation between the second push rod 340 and the guide hole, the activity track of the second clamping part 310 can be made more stable and controllable, thereby improving the accuracy of the test.

[0098] Among them, the first transmission rod 220 is set at an angle to the first rocker arm 130, the first transmission rod 220 is set at an angle to the first push rod 230, the first push rod 230 is set at an angle to the first push rod 240, the first push rod 240 is set at an angle to the first connecting rod 250, the second transmission rod 320 is set at an angle to the second rocker arm 140, the second transmission rod 320 is set at an angle to the second push rod 330, the second push rod 330 is set at an angle to the second push rod 340, and the second push rod 340 is set at an angle to the second connecting rod 350.

[0099] A weight-reducing hole is disposed in the middle of the first connecting rod 250 , and / or a weight-reducing hole is disposed in the middle of the second connecting rod 350 .

[0100] The weight-reducing holes can reduce the weight of the first connecting rod 250 or the second connecting rod 350 , and can increase the elasticity and toughness of the corresponding connecting rod, thereby reducing the risk of fracture during the flexure test and increasing the service life.

[0101] The design of the flexure test device includes precise angle settings of multiple key components to ensure the stability and reliability of the device. Specifically, the first transmission rod 220 and the first rocker 130 in the device are set at a specific angle to ensure smoother force transmission. Similarly, the first transmission rod 220 and the first push rod 230 are also set at an angle so that the first push rod 230 can effectively transmit force to the first push rod 240. The first push rod 240 and the first connecting rod 250 are also set at an angle to ensure further transmission and dispersion of force. The same angle setting also exists between the second transmission rod 320 and the second rocker 140, the second transmission rod 320 and the second push rod 330, and the second push rod 330 and the second push rod 340. Finally, the angle setting between the second push rod 340 and the second connecting rod 350 completes the construction of the entire force transmission chain.

[0102] In addition, the other end of the first connecting rod 250 is connected to the first clamping portion 210 by a movable connection, and the other end of the second connecting rod 350 is connected to the second clamping portion 310 by a movable connection. This design makes the installation process of the component to be tested more flexible, and can be adjusted accordingly according to different types of components to be tested. In this way, the flexure test device can adapt to a variety of different types of components to be tested, thereby significantly improving its test range and increasing the adaptability of the device, so that it can meet more diverse test needs.

[0103] In order to further optimize the performance of the device, a weight-reducing hole is specially provided in the middle of the first connecting rod 250. Such a design can effectively reduce the weight of the first connecting rod 250, thereby reducing the total mass of the entire device and improving its convenience of operation. At the same time, the existence of the weight-reducing hole can also increase the elasticity and toughness of the first connecting rod 250, so that it can better withstand repeated stress during the flexure test, reduce the risk of fracture, and thus extend the service life of the device. The same design is also applied to the middle of the second connecting rod 350. By providing a weight-reducing hole, the second connecting rod 350 can also achieve similar performance improvement.

[0104] Reference Figure 3 As shown, in some examples, the first clamping portion 210 is hinged to the first connecting rod 250 , and the second clamping portion 310 is hinged to the second connecting rod 350 .

[0105] The first clamping portion 210 and the first connecting rod 250 can be connected together by a hinged connection. Similarly, the second clamping portion 310 and the second connecting rod 350 can be connected together by a hinged connection. There are many forms of this hinged connection, one of which is a chain hinge, which is similar to our common hinge structure and has higher stability in a specific direction; the other is a ball hinge, which has better adaptability and can adapt to more movement directions. This application takes the chain hinge as an example for illustrative description.

[0106] In some examples, the first clamping portion 210 includes a first fixing plate 211 and a first locking plate 212, the first fixing plate 211 and the first locking plate 212 are lockably connected via a fixing member, and the first fixing plate 211 and the first locking plate 212 can cooperate to clamp and lock the first position of the component to be tested;

[0107] The second clamping portion 310 includes a second fixing plate 311 and a second locking plate 312 . The second fixing plate 311 and the second locking plate 312 are lockably connected via a fixing member. The second fixing plate 311 and the second locking plate 312 can cooperate to clamp and lock the second position of the component to be tested.

[0108] The first clamping portion 210 is composed of a first fixing plate 211 and a first locking plate 212. Specifically, the first fixing plate 211 and the first locking plate 212 are tightly and lockably connected together through a series of fixing members. This structure enables the first fixing plate 211 and the first locking plate 212 to work together to effectively clamp and lock the component to be measured in a predetermined first position. In this way, the component to be measured can be firmly fixed to ensure accuracy and stability during the measurement process.

[0109] Similarly, the second clamping portion 310 is composed of a second fixing plate 311 and a second locking plate 312. The second fixing plate 311 and the second locking plate 312 are also lockably connected together through a series of fixing members, so that the second fixing plate 311 and the second locking plate 312 can cooperate with each other to clamp and lock the component to be measured in a predetermined second position. This design ensures the accurate clamping and locking of the component to be measured at different positions, further improving the reliability and flexibility of the entire measurement system.

[0110] In some examples, when there are at least two gripping assemblies, the driving assembly 100 includes a driving motor 110 and a converter 120, the driving motor 110 is connected to the converter 120, and the converter 120 can convert the output end of the driving motor 110 into at least two output sub-ends, each of which is connected to a gripping assembly;

[0111] Alternatively, the driving assembly 100 includes at least two driving motors 110 , and each driving motor 110 is connected to a gripping assembly.

[0112] The number of the gripping components is set to at least two. In this case, the driving component 100 includes a driving motor 110 and a converter 120. The driving motor 110 is connected to the converter 120, and the function of the converter 120 is to convert the output end of the driving motor 110 into at least two output sub-ends. Each output sub-end is respectively connected to a gripping component, thereby realizing the driving of multiple gripping components.

[0113] In addition, there is another possible configuration in which the drive assembly 100 includes at least two independent drive motors 110, each of which is directly connected to a gripping assembly, so as to achieve a separate drive for each gripping assembly. Such a design can ensure that each gripping assembly can be operated independently, thereby improving the flexibility and efficiency of the system.

[0114] In some examples, the drive assembly 100 further includes a transmission, which is disposed between the drive motor 110 and the gripping assembly. This can make the control of the drive assembly 100 more diversified, make the testing method of the component to be tested more flexible, increase the testing range of the flexure test device, and increase the adaptability of the flexure test device.

[0115] The drive assembly 100 not only includes a drive motor 110, but is further equipped with a transmission. The transmission is designed and installed between the drive motor 110 and the gripping assembly to form a complete transmission system. By introducing the transmission, the control of the drive assembly 100 becomes more diverse and sophisticated. This design makes the test method of the component to be tested more flexible and can be adjusted accordingly according to different test requirements. Therefore, this improvement significantly improves the test range of the flexure test device, enabling it to cover more types of components to be tested. At the same time, this also increases the adaptability of the flexure test device, enabling it to better adapt to various different test environments and conditions, thereby improving the overall test efficiency and accuracy.

[0116] In some examples, the flexure testing device further includes a support frame 400, and the driving assembly 100 and the grabbing assembly are both disposed on the support frame 400;

[0117] At least one auxiliary fixing structure 410 is disposed on the support frame 400 . When the volume of the component to be tested is larger than a preset size, the auxiliary fixing structure 410 clamps and locks a part of the position of the component to be tested.

[0118] The bottom of the support frame 400 may be provided with a locking ear plate 420, and the support frame 400 may be stably fixed at a corresponding position through the locking ear plate 420, such as being fixed on a larger bracket, or fixed on the ground or wall with an expansion wire.

[0119] Auxiliary moving parts such as universal wheels can also be provided at the bottom of the support frame 400 as needed to facilitate the transfer of the support frame 400. Auxiliary moving parts such as universal wheels can be selected or selected with the locking ear plate 420; if necessary, auxiliary moving parts such as universal wheels can coexist with the locking ear plate 420.

[0120] The driving assembly 100 and the grabbing assembly are mounted on the support frame 400. These assemblies are carefully arranged at appropriate positions of the support frame 400 to ensure the stability of the device and the convenience of operation. The design of the support frame 400 is not only to carry these assemblies, but also takes into account the overall structural strength and stability.

[0121] In order to accommodate components to be tested of different sizes, at least one auxiliary fixing structure 410 is specially designed on the support frame 400. When the volume of the component to be tested exceeds the preset size, these auxiliary fixing structures 410 can effectively clamp and lock part of the position of the component to be tested. This design ensures that the component to be tested can be kept in an appropriate position during the flexure test, thereby ensuring the accuracy and reliability of the test results.

[0122] In addition, in order to further enhance the stability and flexibility of the support frame 400, a locking lug 420 may be provided at the bottom thereof. These locking lugs 420 may conveniently fix the support frame 400 in an appropriate position, such as fixing it to a larger bracket, or fixing it to the ground or wall using expansion wires. This design makes the support frame 400 more stable during use, and also facilitates quick adjustment and positioning in different test environments.

[0123] In order to further improve the mobility and flexibility of the support frame 400, auxiliary moving parts such as universal wheels can be set at the bottom of the support frame 400 according to actual needs. These universal wheels allow the support frame 400 to be easily transferred between different test sites, greatly improving the portability and ease of operation of the device. Universal wheels and other auxiliary moving parts can be selected with the locking ear plate 420 to meet different usage requirements. In some cases, in order to take into account stability and mobility, universal wheels and other auxiliary moving parts can also coexist with the locking ear plate 420, so that while ensuring the stability of the support frame 400, it can also be easily moved and adjusted.

[0124] In a second aspect, an embodiment of the present application provides a method for testing the flexure of a wheel spoke, using the flexure testing device as described above to perform the flexure test of the wheel spoke.

[0125] The flexure test device includes a driving assembly 100 and at least one grabbing assembly. The main function of the driving assembly 100 is to provide the necessary driving force to ensure the smooth progress of the entire test process. As for the at least one grabbing assembly, it is closely connected to the driving assembly 100 to ensure the coordinated work between the two. Each grabbing assembly includes a clamping part and a transmission mechanism. One end of the clamping part and the transmission mechanism are connected, and the other end of the transmission mechanism is connected to the driving assembly 100. Such a design enables the transmission mechanism to effectively drive the clamping part to reciprocate along a preset trajectory.

[0126] The main function of the clamping part is to clamp and lock the preset position of the part to be tested. The part to be tested can be any part that needs to be tested for flexure, and it is fixedly connected to a preset area or another clamping part. During the test, the clamping part can repeatedly bend or twist the part to be tested. The preset position usually refers to the edge position of the key part of the part to be tested that needs to be tested for flexure. When the part to be tested is fixedly connected to the preset area, the preset area can correspond to different positions on the support frame 400, and these different positions can correspond to different models of parts to be tested to meet the testing requirements of different specifications. In addition, the part to be tested can also be fixedly connected to another clamping part, so that the flexure testing device will have at least two gripping components at the same time, so that multiple parts can be tested at the same time, thereby improving the testing efficiency.

[0127] The flexure test method of the wheel spoke uses the above-mentioned flexure test device to perform the flexure test of the wheel spoke. The specific test methods include:

[0128] First, the wheel spoke to be tested is fixed on the clamping part to ensure its stability and accuracy. Then, the drive assembly 100 starts working, and the transmission mechanism drives the clamping part to reciprocate along a preset trajectory. In this process, the clamping part will repeatedly bend or twist the wheel spoke to simulate the stress conditions in actual use. During the test, the deformation and fatigue of the wheel spoke can be monitored in real time to evaluate its performance and durability. In this way, the reliability and safety of the wheel spoke in actual use can be effectively tested to ensure that it meets the relevant standards and requirements.

[0129] The wheel of the present application may be a non-pneumatic tire, specifically a top load-bearing tire, and the flexure test device in the present application may perform a flexure test on the spokes.

[0130] The tire force-bearing mode can be set to two bottom load-bearing modes and a top load-bearing mode. Traditional pneumatic tires and solid tires are both bottom load-bearing modes, that is, the load is transferred to the ground through the sidewall or the bottom elastomer; the tire force-bearing principle of the top load-bearing mode is that the tire tread has a support ring, the spokes are flexible, and the flexible spokes are circumferentially distributed in the support ring. The load is suspended on the support ring through the flexible spokes distributed on the top, and the flexible spokes at the bottom only play a role of easy bending and deformation, and do not play a major supporting force role.

[0131] Specifically, the non-pneumatic tire in the present application is a top-loaded tire with a rigid outer ring. During driving, the load of the tire is mainly borne by the rigid outer ring. The non-pneumatic tire also includes spokes, which include spokes with traction capabilities, referred to as traction units. When the tire is under pressure, the traction unit at the relatively upper side will be stretched and generate tensile force, and the traction unit at the relatively lower side will be compressed. Since the spokes themselves do not have supporting force, the force on the wheel hub will be transmitted to the upper side of the outer ring through the upper traction unit, and the rigid characteristics of the outer ring will then transmit the force to the position below the outer ring in contact with the ground.

[0132] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of this application, it should be understood that if the terms "upper", "lower", "left", "right", etc. indicate an orientation or position relationship based on the orientation or position relationship shown in the drawings, it is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0133] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A flexure testing device, characterized in that: The flexure testing device comprises: A driving component, used to provide driving force; At least one grabbing assembly connected to the driving assembly, the grabbing assembly comprising a clamping portion and a transmission mechanism, the clamping portion being connected to one end of the transmission mechanism, the other end of the transmission mechanism being connected to the driving assembly, and the transmission mechanism being capable of driving the clamping portion to reciprocate along a preset trajectory; The clamping part can clamp and lock the preset position of the component to be tested. The component to be tested is fixedly connected to the preset area or another clamping part. The clamping part can repeatedly bend or twist the component to be tested during movement.

2. The flexure testing device according to claim 1, characterized in that: The grabbing components are provided with two, namely: A first grabbing assembly is connected to the driving assembly, the first grabbing assembly comprises a first clamping portion and a first transmission mechanism, the first clamping portion is connected to one end of the first transmission mechanism, the other end of the first transmission mechanism is connected to the driving assembly, and the first transmission mechanism can drive the first clamping portion to reciprocate along a first trajectory; a second grabbing assembly connected to the driving assembly, the second grabbing assembly comprising a second clamping portion and a second transmission mechanism, the second clamping portion being connected to one end of the second transmission mechanism, the other end of the second transmission mechanism being connected to the driving assembly, and the second transmission mechanism being capable of driving the second clamping portion to reciprocate along a second trajectory; The first clamping portion and the second clamping portion move independently of each other, or the first clamping portion and the second clamping portion move jointly with each other; The first clamping portion can clamp and lock the first position of the component to be tested, the second clamping portion can clamp and lock the second position of the component to be tested, and the first clamping portion and the second clamping portion can repeatedly bend or twist the component to be tested during movement; Wherein, at least part of the transmission parts in the first transmission mechanism and the second transmission mechanism are telescopic parts, and the telescopic parts are locked at the length or position after telescoping.

3. The flexure testing device according to claim 2, characterized in that: The first transmission mechanism comprises a first transmission rod and a first connecting rod, one end of the first transmission rod is connected to the driving assembly, the other end of the first transmission rod is connected to the first connecting rod, and the end of the first connecting rod away from the first transmission rod is connected to the first clamping portion; The second transmission mechanism includes a second transmission rod and a second connecting rod, one end of the second transmission rod is connected to the driving assembly, the other end of the second transmission rod is connected to the second connecting rod, and the end of the second connecting rod away from the second transmission rod is connected to the second clamping portion.

4. The flexure testing device according to claim 2, characterized in that: The driving assembly includes a first rocker adapted to the driving member and the first transmission mechanism, one end of the first rocker is fixedly connected to the driving member, and the first transmission mechanism includes a first transmission rod, a first push rod, a first push rod and a first connecting rod; One end of the first transmission rod is movably connected to the other end of the first rocker, the other end of the first transmission rod is movably connected to one end of the first push rod, the other end of the first push rod is movably connected to one end of the first push rod, the other end of the first push rod is fixedly connected to one end of the first connecting rod, and the other end of the first connecting rod is movably connected to the first clamping portion; The driving assembly further comprises a second rocker matched with the second transmission mechanism, one end of the second rocker is fixedly connected to the driving member, and the second transmission mechanism comprises a second transmission rod, a second push rod, a second push rod and a second connecting rod; One end of the second transmission rod is movably connected to the other end of the second rocker arm, the other end of the second transmission rod is movably connected to one end of the second push rod, the other end of the second push rod is movably connected to one end of the second push rod, the other end of the second push rod is fixedly connected to one end of the second connecting rod, and the other end of the second connecting rod is movably connected to the second clamping portion.

5. The flexure testing device according to claim 3 or 4, characterized in that: The first clamping portion is hinged to the first connecting rod, and the second clamping portion is hinged to the second connecting rod.

6. The flexure testing device according to any one of claims 2 to 4, characterized in that: The first clamping portion includes a first fixing plate and a first locking plate, the first fixing plate and the first locking plate are lockably connected via a fixing member, and the first fixing plate and the first locking plate can cooperate to clamp and lock the first position of the component to be tested; The second clamping portion includes a second fixing plate and a second locking plate, the second fixing plate and the second locking plate are lockably connected via a fixing member, and the second fixing plate and the second locking plate can cooperate to clamp and lock the second position of the component to be tested.

7. The flexure testing device according to any one of claims 1 to 4, characterized in that: When at least two of the grab assemblies are provided, the drive assembly comprises a drive motor and a converter, the drive motor is connected to the converter, and the converter can convert the output end of the drive motor into at least two output sub-ends, each of which is connected to one of the grab assemblies; Alternatively, the driving assembly includes at least two driving motors, and each of the driving motors is connected to one of the grabbing assemblies.

8. The flexure testing device according to claim 7, characterized in that: The drive assembly further includes a transmission disposed between the drive motor and the gripping assembly.

9. The flexure testing device according to claim 1, characterized in that: The flexure testing device further comprises a support frame, and the driving assembly and the grabbing assembly are both arranged on the support frame; At least one auxiliary fixing structure is disposed on the support frame. When the volume of the component to be tested is larger than a preset size, the auxiliary fixing structure clamps and locks a part of the position of the component to be tested.

10. A method for testing the flexure of a wheel spoke, characterized in that: The flexure test device according to any one of claims 1 to 9 is used to carry out a flexure test of a wheel spoke.

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