Bicycle parts testing equipment

Abstract

This utility model provides a bicycle parts testing device, including a bracket, a first clamping mechanism, a second clamping mechanism, a hub drive mechanism, and a testing mechanism. The first and second clamping mechanisms are used to clamp both ends of the inner axle of the hub, allowing the hub to rotate freely around the axle. The hub drive mechanism includes a drive bracket, a lifting assembly, and a conveyor belt assembly. The conveyor belt assembly is vertically connected to the drive bracket via the lifting assembly, and is positioned above the clamped hub. During testing, the conveyor belt in the conveyor belt assembly contacts the outer peripheral wall of the center of the hub, and the rotation of the conveyor belt drives the hub to rotate around the axle. The testing mechanism includes a detector mounted on the bracket and a detection probe connected to the detector. The detection probe perpendicularly contacts the outer circumference of one end of the hub. The advantages of this utility model are that it fundamentally solves the core problems of low efficiency, poor accuracy, and insufficient consistency in manual testing mentioned in the background art.

Description

Technical Field

[0001] This utility model relates to the field of bicycle parts manufacturing technology, and more specifically, to a bicycle parts testing device. Background Technology

[0002] Currently, in the production and quality inspection of bicycle hubs, the inspection of parallelism and coaxiality mainly relies on manual operation, specifically including two traditional methods: one is to observe whether there is a gap by placing a ruler against the end face of the hub, and use an A4 sheet of paper to judge the size of the gap to assess the flatness of the end face; the other is to fix the hub axle and rotate the hub, using the edge of a ruler to check whether the outer circle and the axle are coaxial. Although these two methods are simple and easy to implement, requiring no complex equipment, they have the following problems in practical applications: First, manual inspection is inefficient. Operators need to observe, compare, and judge each hub one by one, and the whole process is time-consuming, making it difficult to meet the needs of modern mass production. Second, the inspection results are greatly affected by human factors, and the accuracy is difficult to guarantee. The operator's experience level, differences in visual judgment, hand stability, and fatigue can all lead to measurement errors. Third, existing methods lack objective and quantitative data output, which is not conducive to quality traceability and process optimization. The inspection results are mostly qualitative judgments, unable to provide precise numerical records, making it difficult to systematically analyze and improve deviations in the hub processing process. Utility Model Content

[0003] The present invention aims to solve the technical problems of low efficiency, poor accuracy, and insufficient consistency in the detection of parallelism and coaxiality of existing bicycle hubs. In order to overcome the above-mentioned defects of the prior art, the present invention provides a detection device that can achieve efficient, high-precision, and automated detection of hub parallelism and coaxiality.

[0004] To achieve the purpose of this utility model, the following technical solution is adopted: A bicycle component testing device includes a bracket, a first clamping mechanism, a second clamping mechanism, a hub drive mechanism, and a testing mechanism. The first and second clamping mechanisms are respectively mounted on the bracket and are arranged opposite to each other. The first and second clamping mechanisms are used to clamp both ends of the inner axle of the hub, allowing the hub to rotate freely around the axle. The hub drive mechanism includes a drive bracket, a lifting assembly, and a conveyor belt assembly. The conveyor belt assembly is vertically connected to the drive bracket via the lifting assembly and is located above the clamped hub. During testing, the conveyor belt in the conveyor belt assembly contacts the outer peripheral wall of the center of the hub, and the rotation of the conveyor belt drives the hub to rotate around the axle. The testing mechanism includes a detector mounted on the bracket and a detection probe connected to the detector. The detection probe vertically contacts the outer circumference of one end of the hub and detects the end face deviation by rotating the hub. By using a first and second clamping mechanism to clamp the two ends of the inner shaft of the hub, the hub can be stably fixed while ensuring its free rotation. This establishes a benchmark for subsequent accurate testing and avoids benchmark offset issues caused by manual hand-held fixing. The hub drive mechanism uses a lifting component to adjust the height of the conveyor belt assembly, allowing the conveyor belt to contact the outer wall of the hub and drive it to rotate. This replaces manual rotation, automating and unifying the hub's rotation and reducing the impact of uneven manual rotation on the test results. The testing mechanism, through a detector and a detection probe perpendicular to the outer circumference of the hub, can automatically detect end-face deviations during hub rotation. Compared to manual visual observation, this significantly improves testing accuracy and automates the testing process, solving the problems of low efficiency and poor accuracy in manual testing. Overall, this solution fundamentally solves the core problems of low efficiency, poor accuracy, and insufficient consistency in manual testing mentioned in the background technology.

[0005] Preferably, the lifting assembly includes a lifting and positioning cylinder, a lifting and positioning plate, and a lifting and positioning slide rail. The lifting and positioning cylinder is vertically mounted on the drive bracket. The lifting and positioning plate is fixedly connected to the lower end of the telescopic rod of the lifting and positioning cylinder, and the lifting and positioning plate is slidably connected to the drive bracket via the lifting and positioning slide rail. The conveyor belt assembly is located below the lifting and positioning plate. With this structure, the lifting and positioning cylinder provides stable power, the lifting and positioning slide rail ensures smooth lifting and lowering of the lifting and positioning plate, and the contact height between the conveyor belt assembly and the hub can be precisely adjusted. This ensures that the conveyor belt can stably conform to the outer periphery of hubs of different specifications, improving the equipment's adaptability to hubs of different sizes, while avoiding errors from manual height adjustment.

[0006] Preferably, the conveyor belt assembly includes a drive motor, a drive guide wheel, and a driven guide wheel. The drive motor is located below the lifting and positioning plate, and its output shaft passes through the lifting and positioning plate and connects to the drive guide wheel. The driven guide wheel is rotatably connected to the lifting and positioning plate, and the drive and driven guide wheels are horizontally aligned. The conveyor belt is tensioned and connected to the drive and driven guide wheels. The bottom contact surface of the conveyor belt is located below the bottom surface of the lifting and positioning plate, and the conveyor belt is located between the first and second clamping mechanisms. The conveyor belt assembly drives the drive guide wheel to rotate via the drive motor, which, in conjunction with the driven guide wheel, ensures the conveyor belt rotates at a uniform speed, thereby driving the hub to rotate stably. The horizontal alignment of the drive and driven guide wheels ensures smooth conveyor belt transmission, preventing wobbling or deviation during hub rotation, providing a stable detection environment for the detection probe, further improving the accuracy of the detection data, and the automated transmission replaces manual rotation, improving detection efficiency.

[0007] Preferably, the first clamping mechanism includes a first cylinder, a first horizontal slide plate, a first horizontal slide rail, and a first clamping plate. The cylinder body of the first cylinder is horizontally mounted on the support. The telescopic rod of the first cylinder is connected to the first horizontal slide plate, and the first horizontal slide plate is slidably connected to the support via the first horizontal slide rail. The first clamping plate is fixedly mounted on the first horizontal slide plate and is used to fix and limit one end of the inner shaft of the hub. By using the first clamping mechanism, the first cylinder pushes the first horizontal slide plate to slide along the first horizontal slide rail, realizing the horizontal movement of the first clamping plate. The clamping position can be flexibly adjusted according to the length of the inner shaft of the hub to adapt to the clamping requirements of different specifications of hubs. Compared with manual clamping, cylinder drive can provide a stable and uniform clamping force, avoiding uneven clamping force caused by manual clamping, which may lead to unstable hub fixation or shaft deformation, and ensuring the stability of the detection benchmark.

[0008] Preferably, the second clamping mechanism includes a second cylinder, a second horizontal slide plate, a second horizontal slide rail, and a second clamping plate. The cylinder body of the second cylinder is horizontally mounted on the bracket and is positioned opposite to the first cylinder. The telescopic rod of the second cylinder is connected to the second horizontal slide plate, and the second horizontal slide plate is slidably connected to the first horizontal slide plate via the second horizontal slide rail. The second clamping plate is fixedly mounted on the second horizontal slide rail. The second clamping plate is used to fix and limit the other end of the inner shaft of the hub. The second clamping mechanism is similar in structure to the first clamping mechanism and is positioned opposite to it. The second cylinder pushes the second horizontal slide plate to slide along the second horizontal slide rail, cooperating with the first clamping mechanism to achieve synchronous clamping of both ends of the inner shaft of the hub, further enhancing the stability and symmetry of the hub fixation. At the same time, the dual-cylinder driven clamping method can precisely control the clamping force and position, avoiding hub displacement that may be caused by unilateral clamping, and improving the accuracy of the detection benchmark.

[0009] Preferably, the top of the first clamping plate is provided with a first limiting groove for limiting one end of the inner shaft of the hub; the top of the second clamping plate is provided with a second limiting groove for limiting the other end of the inner shaft of the hub, and the first and second limiting grooves are arranged opposite to each other and aligned. By aligning the first and second limiting grooves on the tops of the first and second clamping plates, the two ends of the inner shaft of the hub can be accurately positioned, ensuring that the axis of the inner shaft of the hub coincides with the reference axis of the clamping mechanism, avoiding detection errors caused by shaft placement misalignment. The limiting groove design makes hub placement more convenient, reduces the operation time for manually aligning the shaft, and improves the ease of operation and detection efficiency of the equipment.

[0010] Preferably, the detector is a micrometer, which is mounted on a bracket via a fixing base. The detection probe is connected to the micrometer in a front-to-back direction. The micrometer, mounted on the bracket with a fixing base, provides high-precision measurement capabilities. Compared to traditional rulers or manual visual judgment, it can accurately acquire detection data, enabling quantitative output of detection results and solving the problem of lacking objective quantitative data in manual inspection. The fixing base installation method ensures the stability of the micrometer's position, preventing detector displacement during the inspection process and further guaranteeing detection accuracy.

[0011] Preferably, the detection end of the detection probe is cylindrical, and its outer peripheral wall abuts against the outer circumference of one end of the hub. The cylindrical design of the detection end, with its outer peripheral wall abutting against the outer circumference of the hub, increases the contact area between the detection end and the outer circumference of the hub, while reducing wear on the hub's outer circumference. The cylindrical structure ensures stable contact as the detection end rotates with the hub, avoiding fluctuations in detection data due to unstable contact points, and improving the stability and accuracy of the detection results.

[0012] Preferably, the bracket includes a support column and a support platform horizontally positioned at the top of the support column. The bracket consists of the support column and the horizontally positioned support platform. The support column ensures the stability of the overall structure, while the support platform provides a horizontal mounting reference for components such as the first clamping mechanism, the second clamping mechanism, and the detection mechanism, ensuring the accuracy and coordination of the installation positions of each component. The horizontal support platform prevents component positional shifts caused by tilting of the mounting surface, providing structural protection for the overall detection accuracy of the equipment.

[0013] Preferably, the drive bracket is a gantry structure, with the lifting assembly mounted on the crossbeam of the gantry, positioning the conveyor belt assembly above the clamped hub. By using a gantry structure for the drive bracket and mounting the lifting assembly on the crossbeam, the conveyor belt assembly is positioned above the clamped hub. This gantry structure provides high strength and stability, stably supporting the lifting assembly and the conveyor belt assembly, preventing bracket swaying during transmission. Furthermore, this structural layout is reasonable, providing ample operating space for hub loading and unloading, improving the ease of use of the equipment, and ensuring the transmission stability of the conveyor belt assembly to the hub.

[0014] The advantages of this invention are: This equipment automates the clamping, rotation, and inspection of the hubs, increasing efficiency by 3-5 times compared to manual inspection. It can meet the batch inspection needs of production lines and avoid process congestion. The cylinder-driven clamping mechanism ensures stable hub mounting, and the automated conveyor belt drives the hub to rotate at a uniform speed, avoiding random errors inherent in manual operation. A micrometer is used as the detector, achieving an accuracy of 0.001mm, outputting quantitative inspection data, eliminating subjective judgment differences, and ensuring consistent inspection results. The lifting assembly adjusts the conveyor belt height, and the limit groove design adapts to hub inner shafts of different lengths, enabling the equipment to inspect hubs of various specifications. Each mechanism is simple to operate, requiring no professional experience, thus reducing labor costs. Attached Figure Description

[0015] Figure 1 is a schematic diagram of the overall structure of the bicycle parts testing equipment of this utility model.

[0016] Figure 2 is a schematic diagram of the front of the bicycle parts testing equipment of this utility model.

[0017] Figure 3 is a structural schematic diagram of the back of the bicycle parts testing equipment of this utility model.

[0018] Explanation of reference numerals in the attached figures: 1. Bracket; 11. Support column; 12. Support platform; 2. First clamping mechanism; 21. First cylinder; 22. First horizontal slide plate; 23. First horizontal slide rail; 24. First clamping plate; 241. First limiting groove; 3. Second clamping mechanism; 31. Second cylinder; 32. Second horizontal slide plate; 33. Second horizontal slide rail; 34. Second clamping plate; 341. Second limiting groove; 4. Hub drive mechanism; 41. Drive bracket; 42. Lifting assembly; 421. Lifting and positioning cylinder; 422. Lifting and positioning plate; 423. Lifting and positioning slide rail; 43. Conveyor belt assembly; 430. Conveyor belt; 431. Drive motor; 432. Active guide wheel; 433. Driven guide wheel; 5. Detection mechanism; 51. Detector; 52. Detection probe; 521. Detection end; 53. Fixing base. Detailed Implementation

[0019] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of this application and are not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0020] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0021] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0022] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0023] like Figures 1 to 3As shown, a bicycle component testing device includes a bracket 1, a first clamping mechanism 2, a second clamping mechanism 3, a hub drive mechanism 4, and a testing mechanism 5. The bracket 1 includes a support column 11 and a support platform 12 horizontally positioned on top of the support column 11. The support column 11 ensures the stability of the overall structure, while the support platform 12 provides a horizontal mounting reference for components such as the first clamping mechanism 2, the second clamping mechanism 3, and the testing mechanism 5, ensuring the accuracy and coordination of the installation positions of each component. The horizontal support platform 12 can prevent component position displacement caused by the tilt of the mounting surface, providing structural protection for the overall testing accuracy of the device. The first clamping mechanism 2 and the second clamping mechanism 3 are respectively disposed on the support platform 12 of the bracket 1, and the first clamping mechanism 2 and the second clamping mechanism 3 are arranged in a front-to-back opposite manner. The first clamping mechanism 2 and the second clamping mechanism 3 are used to clamp the front and rear ends of the inner shaft of the hub and enable the hub to rotate freely around the shaft. The hub drive mechanism 4 includes a drive bracket 41, a lifting assembly 42 and a conveyor belt assembly 43. The conveyor belt assembly 43 is connected to the drive bracket 41 through the lifting assembly 42 and is located above the clamped hub. During detection, the conveyor belt 430 in the conveyor belt assembly 43 contacts the outer peripheral wall of the middle part of the hub, and the hub rotates around the shaft through the rotation of the conveyor belt 430. The detection mechanism 5 includes a detector 51 disposed on the bracket 1 and a detection probe 52 connected to the detector 51. The detection probe 52 is perpendicularly pressed against the outer circle of one end of the hub and the end face deviation is detected by the rotation of the hub, thereby detecting the parallelism and coaxiality of the hub. The first clamping mechanism 2 and the second clamping mechanism 3 are positioned opposite each other and clamp the two ends of the inner shaft of the drum, which can stably fix the drum and ensure its free rotation, laying a benchmark for subsequent accurate testing and avoiding benchmark offset problems caused by manual hand-held fixing. The drum drive mechanism 4 adjusts the height of the conveyor belt assembly 43 with the lifting component 42, so that the conveyor belt 430 contacts the outer peripheral wall of the drum and drives it to rotate, replacing manual rotation operation, realizing the automation and uniformity of drum rotation, and reducing the impact of unevenness of manual rotation on the test results. The detection mechanism 5, through the detector 51 and the detection probe 52 that is perpendicular to the outer circle of the drum, can automatically detect end face deviation when the drum rotates. Compared with manual visual observation, it can significantly improve the detection accuracy and realize the automation of the detection process, solving the problems of low efficiency and poor accuracy of manual detection. Overall, this solution fundamentally solves the core problems of low efficiency, poor accuracy and insufficient consistency of manual detection mentioned in the background technology.

[0024] like Figures 1 to 3As shown, the drive bracket 41 is a gantry structure, with the lifting assembly 42 mounted on the crossbeam of the gantry, positioning the conveyor belt assembly 43 above the clamped hub. By employing a gantry structure for the drive bracket 41 and mounting the lifting assembly 42 on the crossbeam, the conveyor belt assembly 43 is positioned above the clamped hub. This gantry structure provides high strength and stability, stably supporting the lifting assembly 42 and the conveyor belt assembly 43, preventing the bracket from swaying during transmission. Furthermore, this structural layout is reasonable, providing ample operating space for hub loading and unloading, improving the ease of use of the equipment, and ensuring the transmission stability of the conveyor belt assembly 43 to the hub.

[0025] like Figures 1 to 3 As shown, the lifting assembly 42 includes a lifting and positioning cylinder 421, a lifting and positioning plate 422, and a lifting and positioning slide rail 423. The lifting and positioning cylinder 421 is vertically mounted on the crossbeam of the drive bracket 41. The lifting and positioning plate 422 is fixedly connected to the lower end of the telescopic rod of the lifting and positioning cylinder 421, and the lifting and positioning plate 422 is vertically slidably connected to the drive bracket 41 via the lifting and positioning slide rail 423. The conveyor belt assembly 43 is located below the lifting and positioning plate 422. Through the above structure, the lifting and positioning cylinder 421 provides stable power, the lifting and positioning slide rail 423 ensures the smooth lifting and lowering of the lifting and positioning plate 422, and the contact height between the conveyor belt assembly 43 and the hub can be precisely adjusted to ensure that the conveyor belt can stably fit the outer peripheral wall of hubs of different specifications, improve the adaptability of the equipment to hubs of different sizes, and avoid errors caused by manual height adjustment.

[0026] like Figures 1 to 3 As shown, the conveyor belt assembly 43 includes a drive motor 431, a drive guide wheel 432, and a driven guide wheel 433. The drive motor 431 is positioned in a front-to-back direction at the lower part of the lifting and positioning plate 422, and the front end of the output shaft of the drive motor 431 passes through the lifting and positioning plate 422 and connects to the drive guide wheel 432. The driven guide wheel 433 is rotatably connected to the lifting and positioning plate 422, and the drive guide wheel 432 and the driven guide wheel 433 are horizontally aligned. The conveyor belt 430 is tensioned and connected to the drive guide wheel 432 and the driven guide wheel 433, and the conveyor belt 430 is horizontally distributed. The bottom contact surface of the conveyor belt 430 is located below the bottom surface of the lifting and positioning plate 422, and the conveyor belt 430 is located between the first clamping mechanism 2 and the second clamping mechanism 3. The conveyor belt assembly 43 drives the drive guide wheel 432 to rotate through the drive motor 431, which, in conjunction with the driven guide wheel 433, makes the conveyor belt 430 rotate at a uniform speed, thereby driving the hub to rotate stably. The active guide wheel 432 and the driven guide wheel 433 are horizontally aligned to ensure smooth transmission of the conveyor belt 430, avoid shaking or deviation during the rotation of the hub, provide a stable detection environment for the detection probe 52, further improve the accuracy of the detection data, and the automated transmission replaces manual rotation, improving detection efficiency.

[0027] like Figures 1 to 3 As shown, the first clamping mechanism 2 includes a first cylinder 21, a first horizontal slide plate 22, a first horizontal slide rail 23, and a first clamping plate 24. The cylinder body of the first cylinder 21 is horizontally mounted on the rear side of the support platform 12 on the bracket 1 in a front-to-back direction. The telescopic rod of the first cylinder 21 is connected to the first horizontal slide plate 22, and the first horizontal slide plate 22 is horizontally slidably connected to the support platform 12 via the first horizontal slide rail 23. The first clamping plate 24 is vertically fixed on the top surface of the first horizontal slide plate 22 and is used to fix and limit the rear end of the inner shaft of the hub. By using the first clamping mechanism 2, the first cylinder 21 pushes the first horizontal slide plate 22 to slide along the first horizontal slide rail 23, realizing the horizontal movement of the first clamping plate 24. The clamping position can be flexibly adjusted according to the length of the inner shaft of the hub to adapt to the clamping requirements of different specifications of hubs. Compared with manual clamping, cylinder drive can provide a stable and uniform clamping force, avoiding uneven clamping force caused by manual clamping, which may lead to unstable hub fixation or shaft deformation, and ensuring the stability of the detection benchmark.

[0028] like Figures 1 to 3 As shown, the second clamping mechanism 3 includes a second cylinder 31, a second horizontal slide plate 32, a second horizontal slide rail 33, and a second clamping plate 34. The cylinder body of the second cylinder 31 is horizontally arranged in the front of the support platform 12 on the bracket 1 in the front-back direction, and is arranged opposite to the first cylinder 21 in the front-back direction. The telescopic rod of the second cylinder 31 is connected to the second horizontal slide plate 32, and the second horizontal slide plate 32 is horizontally slidably connected to the first horizontal slide plate 22 in the front-back direction through the second horizontal slide rail 33. The second clamping plate 34 is vertically fixed on the second horizontal slide rail 33. The second clamping plate 34 is used to fix and limit the front end of the inner shaft of the hub. The second clamping mechanism 3 is similar in structure to the first clamping mechanism 2 and is arranged opposite to it. The second cylinder pushes the second horizontal slide plate 32 to slide along the second horizontal slide rail 33, and cooperates with the first clamping mechanism 2 to realize the synchronous clamping of both ends of the inner shaft of the hub, further enhancing the stability and symmetry of the hub fixation. Meanwhile, the dual-cylinder driven clamping method can precisely control the clamping force and position, avoiding hub displacement that may be caused by clamping on one side, and improving the accuracy of the testing benchmark.

[0029] like Figure 2As shown in the figure, a first limiting groove 241 for limiting the rear end of the inner shaft rod of the flower drum is provided at the top of the first clamping plate 24; the first limiting groove 241 is provided at the top of the front side surface of the first clamping plate 24 and is in the shape of a rectangular groove. A second limiting groove 341 for limiting the front end of the inner shaft rod of the flower drum is provided at the top of the second clamping plate 34, and the second limiting groove 341 is provided at the top of the rear side surface of the second clamping plate 34 and is in the shape of a rectangular groove. The first limiting groove 241 and the second limiting groove 341 are arranged opposite to each other and aligned. By arranging the first limiting groove 241 and the second limiting groove 341 at the top of the first clamping plate 24 and the second clamping plate 34 opposite to each other and aligned, the two ends of the inner shaft rod of the flower drum can be accurately positioned, ensuring that the axis of the inner shaft rod of the flower drum coincides with the reference axis of the clamping mechanism, and avoiding detection errors caused by the offset of the shaft rod placement. The design of the limiting groove makes the placement of the flower drum more convenient, reduces the operation time of manually aligning the shaft rod, and improves the operation convenience and detection efficiency of the equipment.

[0030] As Figure 3 shown, the detector 51 is a digital micrometer, and the digital micrometer is installed on the bracket 1 through a fixed seat 53, and the detection probe 52 is connected to the digital micrometer in the front-rear direction. The detector 51 adopts a digital micrometer and is installed on the bracket 1 through a fixed seat 53. The digital micrometer has the characteristics of high-precision measurement and can display the detection data in real time. If the data fluctuates by a specified value within one rotation, it is judged as qualified, otherwise it is unqualified; after the detection is completed, each mechanism is reset and the flower drum is transferred. Compared with the traditional straight ruler or manual visual judgment, it can accurately obtain the detection data, realize the quantitative output of the detection result, and solve the problem of lack of objective quantitative data in manual detection. The installation method of the fixed seat 53 ensures the stable position of the micrometer and avoids the displacement of the detector 51 during the detection process, further ensuring the detection accuracy. The detection end 521 of the detection probe 52 is in the shape of a cylinder, and the outer peripheral wall of the detection end 521 abuts against the outer circle of the rear end of the flower drum. The detection end 521 of the detection probe 52 is designed to be in the shape of a cylinder, and its outer peripheral wall abuts against the outer circle of the flower drum, increasing the contact area between the detection end 521 and the outer circle of the flower drum, and at the same time reducing the wear of the detection end 521 on the outer circle of the flower drum. The cylindrical structure can keep the detection end 521 in stable contact when it rotates with the flower drum, avoiding the fluctuation of the detection data caused by the unstable contact point, and improving the stability and accuracy of the detection result.

[0031] The working principle of this equipment is as follows: A robotic arm picks up the hub assembled in the previous process (with the axle assembled inside the hub) and transfers it between the first clamping plate 24 and the second clamping plate 34. The first clamping mechanism 2 and the second clamping mechanism 3 then activate, automatically clamping both ends of the hub axle. Subsequently, the lifting assembly 42 of the hub drive mechanism 4 descends, causing the conveyor belt 430 to press against the outer circumference of the hub and drive it to rotate. At this time, the detection probe 52 is in close contact with the outer circumference of the hub's end face. As the hub rotates, the radial runout of its end face (reflecting parallelism and coaxiality) causes the detection probe 52 to move. This minute displacement is captured by a high-precision micrometer (detector 51) and displayed as a specific value. The detection system automatically reads this value, thus quickly and accurately determining whether the hub (parallelism and coaxiality) is qualified.

[0032] In summary, the advantages of this utility model are: High degree of automation and significantly improved testing efficiency: The first clamping mechanism 2 and the second clamping mechanism 3 automatically center and clamp the hub, and the hub drive mechanism 4 realizes automatic rotation, which completely replaces the steps of manually holding and fixing and rotating the hub. This makes the testing process fast and continuous, greatly improves the testing efficiency, and meets the needs of mass production.

[0033] High detection accuracy and good consistency: The equipment provides a stable and uniform clamping reference and rotation axis, avoiding random errors introduced by human factors (such as unstable hand grip, visual errors, fatigue). Quantitative measurements are performed using a high-precision detector (such as a micrometer), ensuring objective and accurate results and guaranteeing consistency in test results across different batches and by different operators.

[0034] Data quantification facilitates quality control: Test results are output in precise numerical form, changing the traditional qualitative judgment mode and providing reliable data support for product quality traceability and production process optimization.

[0035] The structure is reasonably designed and operates stably and reliably: the gantry-type drive support 41, the cylinder-driven lifting and clamping components, and the friction transmission of the conveyor belt 430, together ensure the overall rigidity, stability and smooth operation of the equipment, ensuring its long-term reliability.

[0036] In the description of the embodiments of this application, it should be noted that the terms "inner" and "outer" and other terms indicating direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or component must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this application.

[0037] In the description of this application, the references to terms such as "an embodiment," "some embodiments," "in this embodiment," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0038] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A bicycle accessory detection device, characterized by, The device includes a bracket (1), a first clamping mechanism (2), a second clamping mechanism (3), a hub drive mechanism (4), and a detection mechanism (5). The first clamping mechanism (2) and the second clamping mechanism (3) are respectively mounted on the bracket (1), and are arranged opposite to each other. The first clamping mechanism (2) and the second clamping mechanism (3) are used to clamp the two ends of the inner shaft of the hub and enable the hub to rotate freely around the shaft. The hub drive mechanism (4) includes a drive bracket (41), a lifting assembly (42), and a conveyor belt assembly (43). The conveyor belt assembly... (43) The conveyor belt assembly (43) is connected to the drive bracket (41) by the lifting assembly (42), and the conveyor belt assembly (43) is located above the clamped hub; during the test, the conveyor belt (430) in the conveyor belt assembly (43) contacts the outer peripheral wall of the middle part of the hub, and the hub rotates around the axis by the rotation of the conveyor belt (430); the detection mechanism (5) includes a detector (51) set on the bracket (1) and a detection probe (52) connected to the detector (51); the detection probe (52) is perpendicularly pressed against the outer circle of one end of the hub, and its end face deviation is detected by the rotation of the hub.

2. The bicycle accessory detection apparatus of claim 1, wherein, The lifting assembly (42) includes a lifting and positioning cylinder (421), a lifting and positioning plate (422), and a lifting and positioning slide rail (423). The lifting and positioning cylinder (421) is vertically mounted on the drive bracket (41). The lifting and positioning plate (422) is fixedly connected to the lower end of the telescopic rod of the lifting and positioning cylinder (421). The lifting and positioning plate (422) is slidably connected to the drive bracket (41) through the lifting and positioning slide rail (423). The conveyor belt assembly (43) is located at the lower part of the lifting and positioning plate (422).

3. The bicycle accessory detection apparatus of claim 2, wherein, The conveyor belt assembly (43) includes a drive motor (431), an active guide wheel (432), and a driven guide wheel (433). The drive motor (431) is located at the lower part of the lifting and positioning plate (422), and the output shaft of the drive motor (431) passes through the lifting and positioning plate (422) and is connected to the active guide wheel (432). The driven guide wheel (433) is rotatably connected to the lifting and positioning plate (422), and the active guide wheel (432) and the driven guide wheel (433) are horizontally aligned. The conveyor belt (430) is tensioned and connected to the active guide wheel (432) and the driven guide wheel (433). The bottom contact surface of the conveyor belt (430) is located below the bottom surface of the lifting and positioning plate (422), and the conveyor belt (430) is located between the first clamping mechanism (2) and the second clamping mechanism (3).

4. The bicycle accessory detection apparatus of claim 1, wherein, The first clamping mechanism (2) includes a first cylinder (21), a first horizontal slide plate (22), a first horizontal slide rail (23), and a first clamping plate (24). The cylinder body of the first cylinder (21) is horizontally mounted on the bracket (1). The telescopic rod of the first cylinder (21) is connected to the first horizontal slide plate (22), and the first horizontal slide plate (22) is slidably connected to the bracket (1) through the first horizontal slide rail (23). The first clamping plate (24) is fixedly mounted on the first horizontal slide plate (22) and is used to fix one end of the inner shaft of the limiting hub.

5. The bicycle accessory detection apparatus of claim 4, wherein, The second clamping mechanism (3) includes a second cylinder (31), a second horizontal slide plate (32), a second horizontal slide rail (33), and a second clamping plate (34). The cylinder body of the second cylinder (31) is horizontally mounted on the bracket (1) and is positioned opposite to the first cylinder (21). The telescopic rod of the second cylinder (31) is connected to the second horizontal slide plate (32), and the second horizontal slide plate (32) is slidably connected to the first horizontal slide plate (22) via the second horizontal slide rail (33). The second clamping plate (34) is fixedly mounted on the second horizontal slide rail (33). The second clamping plate (34) is used to fix the other end of the inner shaft of the limiting hub.

6. The bicycle accessory detection apparatus of claim 5, wherein, The top of the first clamping plate (24) is provided with a first limiting groove (241) for limiting one end of the inner shaft of the hub; the top of the second clamping plate (34) is provided with a second limiting groove (341) for limiting the other end of the inner shaft of the hub, and the first limiting groove (241) and the second limiting groove (341) are arranged opposite to each other and aligned.

7. The bicycle accessory detection apparatus of claim 1, wherein, The detector (51) is a micrometer, and the micrometer is mounted on the bracket (1) via a mounting base (53). The detection probe (52) is connected to the micrometer in a front-to-back direction.

8. The bicycle accessory detection apparatus of claim 6, wherein, The detection end (521) of the detection probe (52) is cylindrical, and the outer peripheral wall of the detection end (521) abuts against the outer circle of one end of the drum.

9. The bicycle accessory detection apparatus of claim 1, wherein, The bracket (1) includes a support column (11) and a support platform (12) that is horizontally arranged on top of the support column (11).

10. The bicycle accessory detection apparatus of claim 1, wherein, The drive bracket (41) is a gantry structure, and the lifting assembly (42) is set on the crossbeam of the gantry, and the conveyor belt assembly (43) is located above the clamped hub.

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