Wheel rim tread template detection device and detection method

Abstract

The embodiment of the invention discloses a wheel rim tread template detection device and a detection method, the template detection device comprises a detection bench, a template scanning mechanism and a mobile detection mechanism arranged on the detection bench, and an industrial personal computer, and the industrial personal computer controls the mobile detection mechanism to drive a to-be-detected template to move up and down. And the sample plate scanning mechanism is controlled to scan and obtain contour line parameters of different detection areas of the to-be-detected sample plate, and the contour line parameters are processed to determine quality parameters of the to-be-detected sample plate. According to the sample plate detection device and the detection method, automatic detection of geometric parameters of the wheel rim tread sample plate is realized, the measurement efficiency and the measurement precision are improved, and more accurate and reliable data are provided for follow-up quantity value traceability and wheel set quality parameter determination.

Description

Technical Field

[0001] The present invention relates to the technical field of sample detection, and in particular to a wheel rim tread sample detection device and a detection method. Background Art

[0002] During the manufacturing and maintenance of railway vehicles, wheel rims and treads are manually compared and inspected using wheel rim and tread templates. As these templates are used more frequently, they can become worn and deformed, affecting their accuracy and leading to inaccurate measurement results, which in turn affects the assessment of the wheel rim and tread condition. Therefore, regular inspection and calibration of wheel rim and tread templates is necessary.

[0003] Existing methods for measuring wheel rim and tread samples rely heavily on manual measurement and data analysis. This approach is not only inaccurate but also prone to data errors, omissions, and misrecording due to the lack of comprehensive traceability tools and methods. This directly leads to unreliable traceability of the geometric parameters of wheel rim and tread samples, impacting the accuracy of wheelset assembly quality and condition assessment. Summary of the Invention

[0004] In view of this, an embodiment of the present invention provides a wheel rim tread sample detection device and detection method, which improves the accuracy and reliability of the measurement of the geometric parameters of the wheel rim tread sample.

[0005] In a first aspect, an embodiment of the present invention provides a wheel rim tread sample detection device, the sample detection device comprising:

[0006] Testing bench;

[0007] A sample scanning mechanism, arranged on the testing platform, for scanning the sample to be tested;

[0008] A mobile detection mechanism is provided on the detection platform and is used to carry the sample to be tested and move the sample to be tested up and down;

[0009] An industrial computer is electrically connected to the sample scanning mechanism and the mobile detection mechanism. The industrial computer controls the mobile detection mechanism to move the sample to be tested up and down, and controls the sample scanning mechanism to scan and obtain the contour line parameters of the sample to be tested, and processes the contour line parameters to determine the quality parameters of the sample to be tested.

[0010] Optionally, the movement detection mechanism includes:

[0011] Two sliding assemblies are symmetrically fixed on the detection table;

[0012] A movable detection table is located above the detection table, and the movable detection table is connected to the two sliding assemblies;

[0013] A driving assembly is fixed on the detection platform, and the driving assembly drives the movable detection platform to move up and down along the sliding assembly.

[0014] Optionally, the sliding assembly includes a guide rail and a slider, the slider is slidably mounted on the guide rail, the guide rail is longitudinally fixed to the detection platform, and the movable detection table is fixedly connected to the top of the slider via a fixing seat;

[0015] The driving assembly includes a driving motor and a transmission component. The driving motor is fixed under the detection platform through a support plate. The transmission component is connected to the output shaft of the driving motor and the mobile detection platform respectively. The driving motor drives the mobile detection platform to move up and down through the transmission component.

[0016] Optionally, the sample scanning mechanism includes two laser displacement sensors and a mounting plate, the two laser displacement sensors are fixed on the mounting plate, and the mounting plate is fixedly connected to the detection platform;

[0017] There is a first angle between the two laser displacement sensors, and a first distance between the two laser displacement sensors and the movement detection mechanism.

[0018] Optionally, the detection bench includes a detection platform and a plurality of legs, and the plurality of legs are installed below the detection platform.

[0019] Optionally, the sample detection device further includes an environmental detector electrically connected to the industrial control machine for detecting and obtaining environmental parameters;

[0020] The environment detector includes a temperature sensor and a humidity sensor, and the environment parameters include a temperature parameter and a humidity parameter.

[0021] Optionally, the sample detection device further includes a display electrically connected to the industrial computer, and the display receives basic information and sends the basic information to the industrial computer.

[0022] In a second aspect, an embodiment of the present invention further provides a wheel rim tread sample detection method, which is implemented based on a sample detection device. The detection method includes:

[0023] Place the sample to be tested on the mobile testing platform;

[0024] The industrial computer controls the mobile detection mechanism to move the sample to be tested up and down to different detection areas of the sample to be tested, so as to be located within the scanning area of the sample scanning mechanism, and controls the sample scanning mechanism to scan and obtain the contour line parameters of the different detection areas of the sample to be tested;

[0025] The industrial computer controls the mobile detection mechanism and the sample scanning mechanism to perform multiple repeated scanning operations to obtain the contour line parameters of different detection areas of the sample to be tested multiple times;

[0026] The industrial computer processes the contour line parameters of multiple different detection areas to obtain the quality parameters of the sample to be tested.

[0027] Optionally, the industrial computer processes the contour line parameters of multiple different detection areas to obtain the quality parameters of the sample to be tested, including:

[0028] Pre-processing the contour line parameters of different detection areas of the sample to be tested to form the wheel flange tread curve of the sample to be tested;

[0029] Acquiring geometric parameters of the sample to be tested according to the tread curve of the rim of the sample to be tested, wherein the geometric parameters include rim height, rim thickness, rim comprehensive quality index, and rim width;

[0030] The geometric parameters of the sample to be tested are compared with the geometric parameters of the standard sample to determine the quality parameters of the sample to be tested, wherein the quality parameters include uncertainty level, maximum allowable deviation and repeatability deviation, and the uncertainty level characterizes the geometric parameter state of the sample to be tested.

[0031] Optionally, the sample detection device further includes an environmental detector electrically connected to the industrial control machine;

[0032] The detection method further comprises:

[0033] The industrial computer controls the environmental detector to scan and obtain environmental parameters, wherein the environmental parameters include temperature parameters and humidity parameters;

[0034] In response to the environmental parameters satisfying predetermined conditions, compensation correction is performed on the contour line parameters of different detection areas of the sample to be tested.

[0035] Optionally, the detection method further includes:

[0036] The industrial computer stores the contour line parameters, wheel rim tread curves, geometric parameters and quality parameters of different detection areas of the sample to be tested.

[0037] Optionally, the sample detection device further includes a display electrically connected to the industrial control computer;

[0038] The detection method further comprises:

[0039] The display receives and sends basic information, including the information of the tester, the model of the sample, the sample number, the test date, and the unit where the sample was sent for testing;

[0040] The contour line parameters, the wheel rim tread curve, the geometric parameters, and the quality parameters of the sample to be tested are bound to the basic information.

[0041] Optionally, the industrial computer processes the contour line parameters of multiple different detection areas to obtain the quality parameters of the sample to be tested, further comprising:

[0042] In response to the deviation between the geometric parameters of the sample to be tested and the geometric parameters of the standard sample exceeding the standard deviation range, issuing an alarm message;

[0043] Generate an inspection report, the contents of which include geometric parameter deviation values, contour line parameters of different inspection areas, rim tread curves, geometric parameters, quality parameters, and basic information.

[0044] Embodiments of the present invention provide a wheel rim tread sample inspection device and method. The sample inspection device includes a testing platform, a sample scanning mechanism and a mobile inspection mechanism mounted on the testing platform, and an industrial control computer. The industrial control computer controls the mobile inspection mechanism to move the sample to be tested up and down, and controls the sample scanning mechanism to scan and obtain contour parameters of different inspection areas of the sample to be tested. The contour parameters are then processed to determine the quality parameters of the sample to be tested. This sample inspection device and method achieve automated inspection of the geometric parameters of wheel rim tread samples, improving measurement efficiency and accuracy, and providing more accurate and reliable data for subsequent traceability and determination of wheelset quality parameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] The above and other objects, features and advantages of the present invention will become more apparent through the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:

[0046] Figure 1 2 is a schematic structural diagram of a wheel rim tread sample detection device according to an embodiment of the present invention;

[0047] Figure 2 2 is a front view of a wheel rim tread sample detection device according to an embodiment of the present invention;

[0048] Figure 3 AA view of the wheel rim tread sample detection device according to an embodiment of the present invention;

[0049] Figure 4 is a top view of a wheel rim tread sample detection device according to an embodiment of the present invention;

[0050] Figure 5BB view of the wheel rim tread sample detection device according to an embodiment of the present invention;

[0051] Figure 6 This is a schematic diagram of the process of the wheel rim tread sample detection method according to an embodiment of the present invention. Figure 1 ;

[0052] Figure 7 This is a schematic diagram of a process of processing contour line parameters by an industrial computer according to an embodiment of the present invention;

[0053] Figure 8 This is a schematic diagram of the process of the wheel rim tread sample detection method according to an embodiment of the present invention. Figure 2 ;

[0054] Reference numerals:

[0055] 1-testing table; 11-testing platform; 12-support legs; 2-sample scanning mechanism; 21-laser displacement sensor; 22-mounting plate; 3-mobile detection mechanism; 31-sliding assembly; 311-guide rail; 312-slider; 32-mobile detection table; 33-driving assembly; 331-driving motor; 332-transmission components; 34-fixed seat; 35-support plate; 36-support seat; 4-sample to be tested. DETAILED DESCRIPTION

[0056] The present application is described below based on the following embodiments, but the present application is not limited to these embodiments. In the detailed description of the present application below, certain specific details are described in detail. Those skilled in the art can fully understand the present application without the description of these details. To avoid obscuring the essence of the present application, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0057] Furthermore, persons of ordinary skill in the art will appreciate that the figures provided herein are for illustration purposes only and are not necessarily drawn to scale.

[0058] Unless otherwise specified or limited, the terms "mounted," "connected," "connect," "fixed," and the like should be interpreted broadly. For example, they may refer to fixed or detachable connections, or integration; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0059] Unless the context clearly requires otherwise, words like “include”, “comprising” and the like throughout this application should be interpreted as including rather than exclusive or exhaustive; that is, as meaning “including but not limited to”.

[0060] In the description of this application, it should be understood that the terms "first", "second", etc. are used for descriptive purposes only and should not be understood to indicate or imply relative importance. In addition, in the description of this application, unless otherwise specified, "plurality" means two or more.

[0061] The wheel rim tread template is a railway-specific measuring instrument, precisely manufactured to meet strict tolerances. It serves as a standard measuring instrument for wheelset machining quality verification, comparison, wheel turning and repair measurement and evaluation, and wheel set machining accuracy assessment. The wheel rim tread template serves as a reference for wheel machining and wheelset turning and repair accuracy testing and calibration, enabling wheel machining quality control. By comparing the measured wheel geometric parameters with the actual geometric parameters of the wheel rim tread template, deviations in wheel machining and turning accuracy can be promptly identified and corrected, ensuring that the wheel's machining dimensions meet machining requirements and further improving wheelset machining accuracy.

[0062] When the wheel rim tread sample is used for comparison with wheel processing and wheel turning and repair, the wheel rim tread sample itself will also be worn, so the geometric parameters of the wheel rim tread sample need to be regularly inspected.

[0063] This embodiment provides a wheel rim tread sample detection device, which can realize automatic detection of wheel rim tread samples, improve detection efficiency and detection accuracy, and provide more accurate and reliable data for subsequent measurement value traceability and determination of wheelset quality parameters.

[0064] Reference Figure 1The wheel rim tread sample inspection device includes a testing platform 1, a sample scanning mechanism 2, a mobile inspection mechanism 3, and an industrial computer (not shown). The sample scanning mechanism 2 and the mobile inspection mechanism 3 are both arranged on the testing platform 1, and the industrial computer is electrically connected to the sample scanning mechanism 2 and the mobile inspection mechanism 3. The mobile inspection mechanism 3 is used to carry the sample 4 to be tested and can move the sample 4 to be tested up and down so that different positions of the sample 4 to be tested along the thickness direction (height direction) can be moved within the scanning range of the sample scanning mechanism 2. The sample scanning mechanism 2 can scan the sample 4 to be tested at different positions within the scanning range multiple times, thereby obtaining the contour line parameters of different inspection areas of the sample 4 to be tested. The industrial computer can control the mobile inspection mechanism 3 to move up and down, thereby driving the sample 4 to be tested to move up and down. The industrial computer can also control the sample scanning mechanism 2 to scan and obtain the contour line parameters of different inspection areas of the sample 4 to be tested, and process the contour line parameters of all different inspection areas to determine the quality parameters of the sample 4 to be tested, thereby judging the quality status of the sample 4 to be tested.

[0065] Reference Figure 1 The testing platform 1 includes a testing platform 11 and a plurality of legs 12, and the plurality of legs 12 are installed under the testing platform 11. In this embodiment, the testing platform 11 and the legs 12 can be installed by bolts to form a fixed structure. Before the test sample 4 is tested, the testing platform 11 needs to be leveled to avoid the detection of the geometric parameters of the test sample 4 being affected by the unevenness or shaking of the plurality of legs 12. The material of the testing platform 11 and the plurality of legs 12 can be selected from 7075 aviation aluminum and made by milling.

[0066] Reference Figure 1 、 Figure 2 、 Figure 3 and Figure 4 The sample scanning mechanism 2 includes two laser displacement sensors 21 and a mounting plate 22. The two laser displacement sensors 21 are fixed on the mounting plate 22. The mounting plate 22 is fixedly connected to the detection platform 1. The two laser displacement sensors 21 are electrically connected to the industrial control machine. That is, the two laser displacement sensors 21 can be first fixed on the mounting plate 22 to form a whole and then fixedly connected to the detection platform 11 of the detection platform 1. Among them, the laser displacement sensor 21 and the mounting plate 22 can be assembled with bolts, and the mounting plate 22 and the detection platform 11 can be assembled with bolts. In this embodiment, the laser displacement sensor 21 uses a 2D laser displacement sensor. In addition, the laser displacement sensor 21 can also be replaced by other scanners or scanning instruments.

[0067] The two laser displacement sensors 21 have a first angle between them, and a first distance between the two laser displacement sensors 21 and the mobile detection mechanism 3 (i.e., the sample to be tested). The first angle and first distance can be determined based on the technical parameters of the laser displacement sensors 21 and multiple tests, so that when the sample to be tested 4 is placed on the mobile detection mechanism 3, the transverse profile of the sample to be tested 4 can be located within the scanning range of the two laser displacement sensors 21. This ensures that the profile parameters obtained in each scan are the complete profile parameters of a detection area of the sample to be tested 4, thereby improving detection accuracy and reliability.

[0068] Reference Figure 1-Figure 5 The mobile detection mechanism 3 includes two sliding components 31, a mobile detection table 32 and a driving component 33. Among them, the two sliding components 31 are symmetrically fixed on the detection platform 1 (i.e., the detection platform 11), and the two sliding components 31 slide up and down in the longitudinal direction. The mobile detection table 32 is located above the detection platform 1 (i.e., the detection platform 11), and the mobile detection table 32 is connected to the two sliding components 31. The mobile detection table 32 can be guided by the two sliding components 31 to achieve longitudinal up and down movement, thereby improving the stability of the movement of the mobile detection table 32. The mobile detection table 32 is used to carry the sample 4 to be tested, so as to move the sample 4 to be tested up and down, so that different positions of the sample 4 to be tested can be located within the scanning range for scanning to complete the detection. The driving component 33 is fixed on the detection platform 1, and the driving component 33 is connected to the mobile detection table 32, and is also connected to the industrial control electromechanical system. The driving component 33 is used to drive the mobile detection table 32 to move up and down along the sliding component 31.

[0069] Reference Figure 5 The sliding assembly 31 includes a guide rail 311 and a slider 312. The slider 312 is slidably mounted on the guide rail 311. The guide rail 311 is longitudinally fixed to the inspection platform 1. The mobile inspection table 32 is fixedly connected to the top of the slider 312 via a fixing seat 34. Specifically, the guide rails 311 on both sides are fixed to the inspection platform 11 using bolts and support seats 36. In this embodiment, two movable holes are provided on the inspection platform 11. The guide rails 311 on both sides extend symmetrically within the two movable holes, and the two ends of the guide rails 311 extend from the movable holes. The support seat 36 is an L-shaped structure. One side of the support seat 36 is fixedly connected to the inspection platform 11 by bolts, and the other side of the support seat 36 is fixedly connected to the guide rail 311 by bolts. Each guide rail 311 requires two support seats 36 to be connected to the upper and lower surfaces of the inspection platform 11 respectively, and the two support seats 36 are symmetrically arranged. The connection method of the guide rails 311 and the inspection platform 11 can ensure the stability of the entire sample inspection device when the mobile inspection table 32 moves up and down.

[0070] The two sliders 312 are mounted on the two guide rails 311, respectively. The sides of the fixed base 34 are fixedly connected to the sliders 312 via bolts, and the top surface of the fixed base 34 is fixedly connected to the movable detection platform 32 via bolts, so that the movable detection platform 32 is positioned above the two sliders 312 and the two fixed bases 34. The sliders 312 and the fixed base 34 are movable within the movable holes. This connection structure ensures that the movable detection platform 32 can move up and down along the guide rails 311 via the sliders 312, thereby enabling testing of different positions of the test sample 4 in the thickness direction.

[0071] The drive assembly 33 includes a drive motor 331 and a transmission component 332. In the present embodiment, the drive motor 331 is fixed to the detection platform 1, specifically fixed to the bottom of the detection platform 1 by a support plate 35. The detection platform 11 is also provided with a through hole, and the bottom surface of the mobile detection table 32 is provided with a protrusion, which can extend from the through hole. The transmission component 332 is respectively connected to the output shaft of the drive motor 331 and the mobile detection table 32 (i.e., the protrusion), and the drive motor 331 drives the mobile detection table 32 to move up and down through the transmission component 332.

[0072] In this embodiment, the transmission component 332 includes a crank and a rocker. The drive motor 331 is mounted on a support plate 35, which is bolted to the lower surface of the testing platform 11. The crank is mounted on the output shaft of the drive motor 331. The other side of the crank is hinged to the rocker, and the other end of the rocker is hinged to the mobile testing table 32. When the drive motor 331 rotates, the crank drives the rocker, which in turn moves the mobile testing table 32 up and down, thereby moving the test sample 4 up and down, completing the test scan at different positions of the test sample 4.

[0073] In other optional embodiments, the transmission component 332 can also be a gear rack structure, which can convert the rotational motion of the output shaft of the drive motor 331 into linear motion. In other optional embodiments, the drive assembly 33 can also be a linear cylinder, a lead screw, or other structures.

[0074] In this embodiment, the industrial computer combines computing, control, and storage functions. The industrial computer includes a processing unit, a control unit, and a storage unit. The control unit is electrically connected to the processing unit and storage unit, and is also electrically connected to the drive assembly 33, the laser displacement sensor 21, and the display. The control unit controls the drive assembly 33 to move the mobile detection table 32 up and down, controls the laser displacement sensor 21 to scan and detect the test sample 4, and controls the display to display information. The processing unit is used to process the contour line parameters of the test sample 4 obtained by scanning, and the storage unit is used to store basic information, contour line parameters, and related parameters after processing.

[0075] The sample detection device also includes an environmental detector electrically connected to an industrial computer. The environmental detector is used to detect and obtain environmental parameters and transmit them to the industrial computer. These environmental parameters refer to the environmental parameters currently present when the sample detection device is testing the sample under test. The industrial computer compares or processes the current environmental parameters. When the environmental parameters meet predetermined conditions, the industrial computer corrects or compensates for the contour line parameters obtained by scanning to minimize environmental interference with the scanning process, ensure accurate and reliable contour line parameters, and improve the accuracy and reliability of the sample under test.

[0076] In this embodiment, the environment detector includes a temperature sensor and a humidity sensor, which can be installed on the detection platform 11. The environmental parameters include temperature parameters and humidity parameters.

[0077] The sample detection device also includes a display, which is electrically connected to the industrial computer. The display is used to receive basic information and send the basic information to the industrial computer. The basic information includes the information of the inspection personnel, the sample model, the sample number, the inspection date and the sample inspection unit. After the sample 4 to be tested is placed on the mobile inspection table, the display is turned on to input the basic information, and the basic information is associated and bound with the contour parameters, rim tread curve, geometric parameters, and quality parameters of the subsequent sample to be tested to form a detailed record, which is convenient for subsequent data analysis, quality control and problem troubleshooting. At the same time, inputting basic information also helps in automated processing, such as automatically generating reports or directly uploading data to a database. Furthermore, the display can also be used to display basic information, the contour parameters, rim tread curve, geometric parameters, quality parameters, etc. of the sample to be tested obtained by scanning, for easy viewing.

[0078] Figure 6 The wheel rim tread sample detection method of this embodiment is implemented based on the sample detection device of the above embodiment. Figure 6 , detection methods include:

[0079] Step S100: placing the sample to be tested on the mobile testing platform.

[0080] Before executing step S100, the template detection device of the above embodiment has been debugged. When the sample to be tested is placed on the mobile detection platform of the sample detection device, the transverse profile of the predetermined thickness of the sample to be tested can be completely located within the scanning range of the sample scanning mechanism, that is, the sample scanning mechanism can obtain the transverse profile parameters of the sample to be tested within the predetermined thickness range each time it scans, that is, the contour line parameters. The debugging process includes adjusting the first angle between the two laser displacement sensors 21 and the first distance between the two laser displacement sensors 21 and the mobile detection mechanism 3 (that is, the sample to be tested). The first angle and the first distance can be determined by the technical parameters of the laser displacement sensor 21 and multiple tests. Pre-debugging the sample detection device can improve the accuracy and reliability of the detection.

[0081] Step S200: The industrial computer controls the mobile detection mechanism to move the sample to be tested up and down to different detection areas of the sample to be tested within the scanning area of the sample scanning mechanism, and controls the sample scanning mechanism to scan and obtain contour line parameters of different detection areas of the sample to be tested.

[0082] Since the height of the sample to be tested that the sample scanning mechanism 2 can scan each time is limited, it is necessary to move the sample to be tested up and down through the mobile detection mechanism for multiple scans, so that the sample scanning mechanism 2 can obtain the contour line parameters of the sample to be tested at different heights, and after subsequent processing, the complete wheel rim tread curve of the sample to be tested 4 can be obtained.

[0083] Specifically, the test sample 4 can be divided into multiple different detection zones along its thickness based on the scanning range of the sample scanning mechanism 2. The mobile detection mechanism can drive the test sample upward, so that the multiple different detection zones sequentially pass through and remain within the scanning range of the sample scanning mechanism 2 for a period of time. During this period of residence, the sample scanning mechanism 2 can scan and obtain the contour parameters of the test sample currently located in the detection zone within the scanning range. Each detection zone can be assigned a serial number, thereby enabling easy identification and use when storing the contour parameters.

[0084] The industrial computer controls the mobile inspection mechanism to move the test sample up and down by controlling the rotation of the drive motor to drive the movement of the transmission components. For example, the industrial computer controls the mobile inspection mechanism to first move the test sample upward to the first position (the first inspection zone), then controls the sample scanning mechanism to scan the test sample at the first position and store the contour parameters of the scan at the first position. The above steps are then repeated, moving the test sample to the next position and scanning it again, until all positions (all inspection zones) are scanned, thereby obtaining a series of scan data reflecting each inspection zone of the test sample, thus completing a complete scan of the test sample.

[0085] Step S300: The industrial computer controls the mobile detection mechanism and the sample scanning mechanism to perform multiple repeated scanning operations to obtain contour line parameters of different detection areas of the sample to be tested multiple times.

[0086] The industrial computer controls the mobile detection mechanism and the sample scanning mechanism to perform multiple repetitive scans, following the steps required to complete a complete scan of the sample under test. This allows for multiple acquisitions of contour parameters for different inspection areas of the sample under test. This repetitive scanning process reduces errors that may occur with a single scan, resulting in more accurate data. The number of repetitive scans can be preset or controlled by the tester on-site.

[0087] Step S400: The industrial computer processes the contour line parameters of multiple different detection areas to obtain the quality parameters of the sample to be tested.

[0088] After scanning all inspection areas of the sample to be tested, all scan parameters need to be processed to determine the quality parameters of the sample to be tested. The industrial computer can process the scan parameters after completing a complete scan of the sample to be tested, and then repeat the complete scan and processing multiple times; or the industrial computer can process the scan parameters of each scan separately after completing multiple complete scans of the sample to be tested.

[0089] Figure 7 This is a flow chart of how the industrial computer processes the contour parameters in this embodiment. Specifically, it includes the following steps:

[0090] Step S410: pre-processing the contour line parameters of different detection areas of the sample to be tested to form the rim tread curve of the sample to be tested.

[0091] First, the contour line parameters obtained from different test areas are pre-processed through denoising, rotation, and registration to form the wheel flange tread curve of the test sample. Denoising, rotation, and registration can be performed using methods such as the Steger method, Legendre matrix, skeleton method, and Levenberg-Marquardt algorithm.

[0092] Step S420: obtaining the geometric parameters of the sample to be tested according to the wheel rim tread curve of the sample to be tested.

[0093] The rim tread curve is the curved surface shape to be tested of the test sample, which can reflect the current geometric parameters of the test sample, and then compare it with the geometric parameters of the standard sample in the database to know the quality status of the current test sample. The standard sample refers to the sample with the same model as the test sample. When comparing, the standard sample with the same model can be found in the database according to the model of the test sample in the basic information, and then the corresponding geometric parameters can be compared. Among them, the geometric parameters include rim height, rim thickness, rim comprehensive quality index (Quality Ratio, QR), and rim width. Among them, there are many types of test samples, and the rim tread curves of different types of test samples can reflect different geometric parameters, which are set according to specific needs.

[0094] Step S430: Compare the geometric parameters of the sample to be tested with the geometric parameters of the standard sample to determine the quality parameters of the sample to be tested.

[0095] The test sample 4 is a used wheel rim and tread sample to be tested. The standard sample is an unused wheel rim and tread sample that meets technical specifications. The standard sample maintains the ideal geometry of the wheel rim and tread. Therefore, the geometric parameters of the standard sample are ideal and can be used as a comparison standard. During the comparison, the model of the test sample and the standard sample are consistent.

[0096] By comparing the geometric parameters of the sample to be tested with the geometric parameters of the standard sample, the changes in the geometric parameters of the sample to be tested 4 after multiple uses can be determined, and the quality parameters of the sample to be tested can be determined based on the changes. Among them, the quality parameters include uncertainty level, maximum allowable deviation and repeatability deviation, and the uncertainty level characterizes the geometric parameter state of the sample to be tested 4. The maximum allowable deviation refers to the maximum error range of the laser position sensor. If the measurement result exceeds this range, the measurement result of the laser position sensor is considered unacceptable and requires calibration or maintenance. Repeatability deviation refers to the degree of consistency between the results obtained from multiple measurements of the same sample to be tested under the same measurement conditions. Highly repeatable measurements mean that even if the same parameter is measured multiple times, very close results can be obtained. This is crucial to ensuring data reliability during the detection process.

[0097] Step S440: In response to the deviation between the geometric parameters of the sample to be tested and the geometric parameters of the standard sample exceeding the standard deviation range, an alarm message is issued.

[0098] When the geometric parameters of the test sample, after repeated use, deviate from those of the standard sample by exceeding the standard deviation range, the test sample is no longer usable as a sample. At this point, an alarm message is issued to quickly notify management personnel for action. This alarm message can be displayed on a monitor, or through light or sound prompts such as alarms and buzzers, or sent to relevant personnel. This alarm message prevents unqualified samples from entering service, thereby ensuring the safety and reliability of railway transportation.

[0099] Step S450: Generate a test report, the contents of which include geometric parameter deviation values, contour line parameters of different test areas, wheel rim tread curves, geometric parameters, quality parameters, and basic information.

[0100] After the test is complete, the final test results need to be generated into a test report and stored for subsequent review, providing comparative data for maintaining the accuracy of subsequent samples. If a printer is connected, the test report can be printed. The test report includes geometric parameter deviation values, contour parameters of different test areas, rim tread curves, geometric parameters, quality parameters, and basic information.

[0101] like Figure 8 As shown, the detection method further includes:

[0102] Step 500: The industrial computer controls the environmental detector to scan and obtain environmental parameters.

[0103] The performance of the scanning device (i.e., the laser position sensor) may vary under different environments, affecting the profile parameters obtained through scanning. Furthermore, different environments may also affect the physical properties of the sample being measured. For example, when the temperature reaches a certain value, the material may expand or contract, thereby changing the size of the sample being measured; humidity in the air may affect the propagation of optical or electrical signals; and in high-temperature environments, the performance of the laser position sensor may change, resulting in increased measurement errors. These factors all directly affect the accuracy of the profile parameters, so environmental sensors are required to scan and obtain environmental parameters during the scanning process.

[0104] In this embodiment, the environment detector includes a temperature sensor and a humidity sensor, so the environment parameters include temperature parameters and humidity parameters. In addition, the environment detector may also include an air pressure sensor, etc.

[0105] Step 600: In response to the environmental parameters satisfying predetermined conditions, compensation correction is performed on the contour line parameters of different detection areas of the sample to be tested.

[0106] To reduce the impact of these environmental factors on the profile parameters, the errors caused by these environmental changes can be offset by correcting or compensating the profile parameters, thereby maintaining high measurement accuracy. The predetermined condition refers to when the environmental parameters reach a certain range before compensation is applied. For example, when the temperature reaches a high temperature (e.g., greater than 40 degrees Celsius), the profile parameters are compensated. Compensation can be performed in different ways depending on the environmental parameters, thereby maintaining measurement accuracy.

[0107] Step 700: The industrial computer stores the contour line parameters, wheel rim tread curves, geometric parameters and quality parameters of different inspection areas of the sample to be tested.

[0108] After processing the contour parameters, the industrial computer stores the scanned contour parameters for different inspection areas, the processed wheel flange tread curve, geometric parameters, and quality parameters. This storage allows for subsequent review and comparison of test values from different years of the same sample under test, providing basic data for maintaining accuracy on subsequent samples. Furthermore, the industrial computer can output an inspection report based on the geometric parameters obtained through this processing.

[0109] Step 800: The display receives and sends basic information.

[0110] After placing the sample 4 to be tested on the mobile testing table 32 in step S100, open the display to input basic information, which includes the information of the tester, the model of the sample, the sample number, the test date, and the unit where the sample was sent for testing.

[0111] Step 900: Bind the contour line parameters, the wheel rim tread curve, the geometric parameters, and the quality parameters of the sample to be tested with the basic information.

[0112] After placing the sample 4 to be tested on the mobile testing table, open the display to input basic information, and then send the basic information to the industrial computer. After receiving the contour line parameters obtained by scanning with the laser displacement sensor and processing them, the industrial computer associates and binds them with the basic information. That is, the basic information is associated with the contour line parameters, wheel rim tread curve, geometric parameters, and quality parameters of the sample to be tested to form a detailed record, which is convenient for subsequent data analysis, quality control, and problem troubleshooting. At the same time, inputting basic information also helps in automated processing, such as automatically generating reports or directly uploading data to a database. Furthermore, the display can also be used to display basic information, the contour line parameters, wheel rim tread curve, geometric parameters, quality parameters, etc. of the sample to be tested obtained by scanning, for easy viewing.

[0113] The wheel rim tread template detection device and detection method of this embodiment are such that the template detection device can automatically scan the template to be tested and obtain the scanning parameters for processing, thereby improving the accuracy of the wheelset geometric parameter measurement and reducing the error caused by manual measurement, providing more accurate and reliable data for subsequent measurement value traceability, wheelset structure analysis, accuracy degradation analysis, wheelset service accuracy life prediction and determination of wheelset uncertainty level.

[0114] The foregoing is merely a preferred embodiment of the present application and is not intended to limit the present application. Persons skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application are intended to be within the scope of protection of the present application.

Claims

1. A wheel rim tread sample detection device, characterized in that: The sample detection device comprises: Testing station (1); A sample scanning mechanism (2) is provided on the testing platform (1) and is used for scanning the sample (4) to be tested; A mobile detection mechanism (3) is arranged on the detection platform (1) and is used to carry the sample plate (4) to be tested and move the sample plate (4) to be tested up and down; An industrial computer is electrically connected to the sample scanning mechanism (2) and the mobile detection mechanism (3). The industrial computer controls the mobile detection mechanism (3) to move the sample to be tested (4) up and down, and controls the sample scanning mechanism (2) to scan and obtain the contour line parameters of the sample to be tested (4), and processes the contour line parameters to determine the quality parameters of the sample to be tested (4).

2. The sample detection device according to claim 1, characterized in that: The mobile detection mechanism (3) comprises: Two sliding assemblies (31) are symmetrically fixed on the detection platform (1); A movable detection table (32) is located above the detection table (1), and the movable detection table (32) is connected to the two sliding components (31); A driving assembly (33) is fixed on the detection platform (1), and the driving assembly (33) drives the movable detection platform (32) to move up and down along the sliding assembly (31).

3. The sample detection device according to claim 2, characterized in that: The sliding assembly (31) comprises a guide rail (311) and a slider (312), the slider (312) being slidably mounted on the guide rail (311), the guide rail (311) being longitudinally fixed on the detection platform (1), and the movable detection platform (32) being fixedly connected above the slider (312) via a fixing seat (34); The driving assembly (33) includes a driving motor (331) and a transmission component (332). The driving motor (331) is fixed below the detection platform (1) through a support plate (35). The transmission component (332) is connected to the output shaft of the driving motor (331) and the movable detection platform (32) respectively. The driving motor (331) drives the movable detection platform (32) to move up and down through the transmission component (332).

4. The sample detection device according to claim 1, characterized in that: The sample scanning mechanism (2) comprises two laser displacement sensors (21) and a mounting plate (22), wherein the two laser displacement sensors (21) are fixed on the mounting plate (22), and the mounting plate (22) is fixedly connected to the detection platform (1); There is a first angle between the two laser displacement sensors (21), and a first distance between the two laser displacement sensors (21) and the movement detection mechanism (3).

5. The sample detection device according to claim 1, characterized in that: The detection platform (1) comprises a detection platform (11) and a plurality of supporting legs (12), wherein the plurality of supporting legs (12) are installed below the detection platform (11).

6. The sample detection device according to claim 1, characterized in that: The sample detection device also includes an environmental detector electrically connected to the industrial control machine for detecting and obtaining environmental parameters; The environment detector includes a temperature sensor and a humidity sensor, and the environment parameters include a temperature parameter and a humidity parameter.

7. The sample detection device according to claim 1, characterized in that: The sample detection device also includes a display electrically connected to the industrial computer, and the display receives basic information and sends the basic information to the industrial computer.

8. A wheel rim tread sample detection method, implemented based on the sample detection device according to any one of claims 1 to 7, characterized in that: The detection method comprises: Placing the sample to be tested (4) on the mobile testing platform (11); The industrial computer controls the mobile detection mechanism (3) to move the sample to be tested (4) up and down to different detection areas of the sample to be tested (4) within the scanning area of the sample scanning mechanism (2), and controls the sample scanning mechanism (2) to scan and obtain the contour line parameters of the different detection areas of the sample to be tested; The industrial computer controls the mobile detection mechanism (3) and the sample scanning mechanism (2) to perform multiple repeated scanning operations to obtain contour line parameters of different detection areas of the sample to be tested (4) multiple times; The industrial computer processes the contour line parameters of multiple different detection areas to obtain the quality parameters of the sample (4) to be tested.

9. The detection method according to claim 8, characterized in that The industrial computer processes the contour line parameters of multiple different detection areas to obtain the quality parameters of the sample to be tested (4), including: Pre-processing the contour line parameters of different detection areas of the test sample (4) to form the wheel rim tread curve of the test sample (4); Acquiring geometric parameters of the test sample (4) according to the tread curve of the rim of the test sample (4), wherein the geometric parameters include rim height, rim thickness, rim comprehensive quality index, and rim width; The geometric parameters of the sample to be tested (4) are compared with the geometric parameters of the standard sample to determine the quality parameters of the sample to be tested (4), wherein the quality parameters include uncertainty level, maximum allowable deviation and repeatability deviation, and the uncertainty level represents the geometric parameter state of the sample to be tested (4).

10. The detection method according to claim 8, characterized in that The sample detection device also includes an environmental detector electrically connected to the industrial control machine; The detection method further comprises: The industrial computer controls the environmental detector to scan and obtain environmental parameters, wherein the environmental parameters include temperature parameters and humidity parameters; In response to the environmental parameters satisfying predetermined conditions, compensation correction is performed on the contour line parameters of different detection areas of the sample (4) to be tested.

11. The detection method according to claim 9, characterized in that The detection method further comprises: The industrial computer stores the contour line parameters, wheel rim tread curves, geometric parameters and quality parameters of different detection areas of the sample to be tested (4).

12. The detection method according to claim 11, characterized in that The sample detection device also includes a display, which is electrically connected to the industrial control machine; The detection method further comprises: The display receives and sends basic information, including the information of the tester, the model of the sample, the sample number, the test date, and the unit where the sample was sent for testing; The contour line parameters, the wheel rim tread curve, the geometric parameters, and the quality parameters of the sample to be tested are bound to the basic information.

13. The detection method according to claim 12, characterized in that: The industrial computer processes the contour line parameters of multiple different detection areas to obtain the quality parameters of the sample to be tested (4), and further comprises: In response to the deviation between the geometric parameters of the sample to be tested (4) and the geometric parameters of the standard sample exceeding the standard deviation range, an alarm message is issued; Generate an inspection report, the contents of which include geometric parameter deviation values, contour line parameters of different inspection areas, rim tread curves, geometric parameters, quality parameters, and basic information.

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