A method for detecting the quality of automotive steering parts

Abstract

The present invention discloses a method for detecting the quality of an automotive steering component. The ball seat and the ball head pin are installed on the installation sub-module. An acceleration sensor array is set to detect the vibration acceleration of the rod part of the ball head pin, a vision sensor array is used to detect the mating clearance, and a temperature sensor is used to detect the temperature of the mating part of the ball seat. These data in the same movement direction are divided into the same detection data group. The driving dynamic simulation module simulates the actual working movement conditions. The quality evaluation module first determines whether the data is within the first threshold range. If it exceeds, the quality is unqualified, and the rest are initially qualified. For the initially qualified data, it is further determined whether it is within the second threshold. If all are within, it is qualified. If some are between the two thresholds, it is a comprehensive evaluation data group. According to the vibration acceleration, mating clearance, temperature data and weights, the force condition of the connection part with other components is added. This solution comprehensively and accurately detects the quality of the steering component and improves the product reliability.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive steering component detection, and particularly to a method for detecting the quality of automotive steering components. Background Art

[0002] In today's highly developed industrial system, the combination of ball pins and ball seats, as key connecting components, is widely used in many fields such as the automotive industry, mechanical manufacturing, aerospace, etc. These fields have extremely high requirements for the performance, reliability, and safety of products, and the quality of ball pins and ball seats directly affects the operation effect of the entire system.

[0003] In the automotive field, ball pins connect important components such as the steering system and suspension system, and the quality of their performance is related to the vehicle's controllability, stability, and driving safety. In mechanical manufacturing, ball pins and ball seats play a key role in various transmission mechanisms and connecting devices, bearing complex loads and motion states. In the aerospace field, the quality requirements for components are even more stringent, and the reliability of ball pins and ball seats is directly related to the safe flight of aircraft.

[0004] With the continuous progress of industrial technology and the increasing fierce market competition, the quality requirements for ball pins and ball seats are continuously improving. Traditional quality detection methods have many limitations and are no longer able to meet the needs of modern industry. In the past, quality detection often focused on simple dimension measurement and appearance inspection, which could only provide limited information and could not deeply understand the performance of ball pins and ball seats under actual working conditions.

[0005] In practical applications, the working environment where ball pins and ball seats are located is complex and changeable. On the one hand, they have to withstand dynamic loads such as vibration and impact from different directions, and these dynamic loads will affect the structural strength of ball pins and the mating stability of ball seats. On the other hand, temperature change is also an important factor. Different working temperatures will cause changes in material properties, which in turn affect the mating clearance between ball pins and ball seats and the stress situation at the connection part.

[0006] In addition, ball seats are usually tightly connected to other devices, and the stress situation at the connection part has a crucial impact on the quality of ball pins and ball seats. The interaction of forces in different directions may cause loosening, deformation, or even damage at the connection part, thus affecting the normal operation of the entire system.

[0007] In order to meet the needs of modern industry for high-quality products, there is an urgent need for a more advanced and comprehensive quality inspection method. This method should be able to comprehensively consider multiple parameters and factors, such as the vibration acceleration of the shank part of the ball head pin, the fit clearance between the ball head pin and the ball seat, the temperature data of the mating part of the ball seat, and the force on the connecting part between the ball seat and other devices. By accurately measuring and comprehensively analyzing these parameters, a comprehensive evaluation of the quality of the ball head pin and the ball seat can be achieved, ensuring that the product can maintain good performance and reliability under various complex working conditions, and providing a strong guarantee for the safe and efficient operation of industrial production. Summary of the Invention

[0008] The purpose of the present invention is to provide a quality inspection method for automotive steering parts, which has the advantages of improving the accuracy and reliability of quality judgment and avoiding the limitations of single-parameter evaluation.

[0009] The above technical purpose of the present invention is achieved through the following technical solutions:

[0010] A quality inspection method for automotive steering parts is used for the structure of automotive steering parts. The structure of the automotive steering parts includes a ball head pin and a ball seat. The ball head pin includes a mounting part, a shank part, and a ball head part arranged in sequence, and the mounting part is connected with a mounting nut; the ball seat includes a mating part and a connecting part arranged in sequence, a movable cavity is formed on the mating part, the ball head part is movably connected in the movable cavity, and a clamping ring is connected to one end of the connecting part far away from the movable cavity;

[0011] The quality inspection method for the automotive steering parts specifically includes the following steps:

[0012] After the ball seat and the ball head pin in the steering part are installed and fitted, they are fixed on the installation module;

[0013] Set the detection module according to the preset position to detect the ball seat and the ball head pin;

[0014] Drive the ball head pin by the dynamic simulation module to perform dynamic simulation to simulate the movement under actual working conditions;

[0015] The detection module obtains various physical data of the ball seat and the ball head pin during the dynamic simulation. Among them, the acceleration sensor array of the detection module is used to detect the vibration acceleration of the shank part of the ball head pin in multiple movement directions; the vision sensor array of the detection module is used to detect the fit clearance between the ball head part of the ball head pin and the mating part of the ball seat in multiple movement directions; the temperature sensor array of the detection module is used to detect the temperature of the mating part of the ball seat in multiple movement directions; the force sensor array of the detection module is used to detect the force on the connecting part of the ball seat in multiple movement directions;

[0016] The data processing module filters and denoises the obtained physical data to obtain vibration acceleration data, clearance data, temperature data, and force data, and divides the vibration acceleration data, clearance data, and temperature data in the same movement direction into a detection data group;

[0017] The quality evaluation module first makes a preliminary screening judgment on the detection data group, screens out the detection data groups that meet the standards and those that do not meet the standards, and marks the remaining detection data groups as comprehensive evaluation data groups;

[0018] Obtain the force data in the movement direction corresponding to the comprehensive evaluation data group, and obtain a force evaluation value according to the force data and a preset force bearing value;

[0019] Calculate a comprehensive evaluation index according to the force evaluation value, vibration acceleration data, clearance data, temperature data, and their respective preset weights, and compare the comprehensive evaluation index with a preset standard index. If it is within the preset deviation range, it is judged that the comprehensive evaluation data group meets the standards; if it is outside the preset deviation range, it is judged that the comprehensive evaluation data group does not meet the standards;

[0020] If all detection data groups meet the standards, the steering part is judged to be of qualified quality; otherwise, it is of unqualified quality.

[0021] Further setting: The quality evaluation module first makes a preliminary screening judgment on the detection data group, screens out the detection data groups that meet the standards and those that do not meet the standards, and marks the remaining detection data groups as comprehensive evaluation data groups, which specifically includes the following steps:

[0022] Obtain the vibration acceleration data, clearance data, and temperature data in the same detection data group, and judge whether they exceed a first threshold. The first threshold specifically includes a corresponding first acceleration threshold, a first clearance threshold, and a first temperature threshold. If any data in the same detection data group exceeds the first threshold, it is judged that the detection data group does not meet the standards;

[0023] For any data that does not exceed the first threshold, judge whether it is less than or equal to a preset second threshold. The second threshold specifically includes a second acceleration threshold, a second clearance threshold, and a second temperature threshold. If any data in the same detection data group is within the second threshold, it is judged that the detection data group meets the standards; otherwise, it is marked as a comprehensive evaluation data group.

[0024] Further setting: The obtaining of the force evaluation value according to the force data and the preset force bearing value specifically includes the following steps:

[0025] Decompose the force data in this movement direction into a lateral force, a longitudinal force, and a vertical force;

[0026] Calculate the ratios of the lateral force, longitudinal force, vertical force, and their respective preset force-bearing values respectively;

[0027] Calculate the force evaluation value according to the obtained ratios and the weight parameters of the corresponding preset lateral force, longitudinal force, and vertical force.

[0028] Further set: The specific formula for calculating the force evaluation value according to the obtained ratios and the weight parameters of the corresponding preset lateral force, longitudinal force, and vertical force is as follows:

[0029]

[0030] Where, D is the force evaluation value, F X is the lateral force, F XM is the force-bearing value corresponding to the lateral force, F Y is the longitudinal force, F YM is the force-bearing value corresponding to the longitudinal force, F Z is the vertical force, F ZM is the force-bearing value corresponding to the vertical force, , , are the weight parameters corresponding to the lateral force, longitudinal force, and vertical force respectively.

[0031] Further set: The specific formula for calculating the comprehensive evaluation index according to the force evaluation value, vibration acceleration data, fit clearance data, temperature data, and their respective preset weights is as follows:

[0032]

[0033] Where, A is the vibration acceleration data, is the preset weight corresponding to the vibration acceleration data, B is the fit clearance data, is the preset weight corresponding to the fit clearance data, C is the temperature data, is the preset weight corresponding to the temperature data, D is the force evaluation value, is the preset weight corresponding to the force evaluation value, Q is the comprehensive evaluation index.

[0034] Further set: The data processing module filters and denoises the obtained physical data to obtain the vibration acceleration data, fit clearance data, temperature data, and force data, specifically including:

[0035] Detect the motion conditions of the ball joint driven by the dynamic simulation module for multiple times to obtain multiple physical data, and the data module performs median filtering on the multiple physical data to remove noise and interference signals;

[0036] Calculate the average value of the physical data for multiple times to obtain vibration acceleration data, fit clearance data, temperature data, and force data.

[0037] Further set: The acceleration sensor array is evenly distributed along the axial, radial, and tangential directions of the ball head pin rod part.

[0038] Further set: A light shield and an LED light source are arranged at the visual sensor array.

[0039] In summary, the present invention has the following beneficial effects: Compared with traditional quality inspection methods, the present solution comprehensively considers multiple parameters such as vibration acceleration, fit clearance, temperature data, and the force condition of the connection part, and can more comprehensively reflect the quality status of the ball head pin and the ball seat. Traditional methods often only focus on a single parameter and cannot provide a complete quality assessment. By driving the dynamic simulation module to drive the ball head pin for dynamic simulation, the movement situation under actual working conditions can be simulated, making the test results closer to the actual use state. In the prior art, there may be a lack of accurate simulation of actual working conditions, resulting in a gap between the test results and the actual performance. Set the first threshold and the second threshold range, initially screen and further judge the test data, and conduct a comprehensive evaluation on the data in the intermediate range, improving the accuracy of quality judgment. At the same time, introduce a weight parameter to calculate the comprehensive evaluation index Q, making the evaluation result more scientific and reasonable. Decompose the force received by the connection part into forces in multiple directions for analysis and evaluation, and can more accurately determine the bearing capacity and quality status of the connection part. The prior art may ignore the complexity of the force on the connection part, resulting in inaccurate quality assessment. By establishing a perfect comprehensive evaluation system, integrating and analyzing multiple parameters, the reliability of quality evaluation is improved. This system can comprehensively consider the performance of the ball head pin and the ball seat in different aspects, avoiding the limitations of single-parameter evaluation. Description of the Drawings

[0040] Figure 1 is the overall structural schematic diagram of the embodiment;

[0041] Figure 2 is the overall flow block diagram of the embodiment.

[0042] In the figure, 1, ball head pin; 101, ball head part; 102, rod part; 103, installation part; 2, ball seat; 201, fitting part; 202, movable cavity; 203, connection part; 3, installation nut; 4, holding ring. Specific Embodiments

[0043] The following further describes the present invention in detail with reference to the drawings. Embodiment

[0044] As Figure 1As shown in the figure, an automotive steering component structure includes a ball head pin 1 and a ball seat 2. The ball head pin 1 includes a mounting portion 103, a rod portion 102, and a ball head portion 101 arranged in sequence. The mounting portion 103 is connected with a mounting nut 3. The ball seat 2 includes a mating portion 201 and a connecting portion 203 arranged in sequence. An activity cavity 202 is formed on the mating portion 201. The ball head portion 101 is movably connected within the activity cavity 202. One end of the connecting portion 203 away from the activity cavity 202 is connected with a clamping ring 4.

[0045] As Figure 2 shown, a method for detecting the quality of an automotive steering component, which is used for detecting the quality of the above automotive steering component structure, specifically includes the following steps:

[0046] After the ball seat and the ball head pin in the steering component are installed and fitted, they are fixed on the installation module.

[0047] The detection module is set according to the preset position to detect the ball seat and the ball head pin.

[0048] The dynamic simulation module is used to drive the ball head pin for dynamic simulation to simulate the movement conditions under actual working conditions, study the movement characteristics and force conditions of the ball head pin and the ball seat under actual working conditions, and establish a more accurate dynamic simulation model. More actual factors can be considered, such as different working loads, temperature changes, vibration frequencies, etc., to improve the authenticity of the simulation. Advanced simulation software and algorithms, such as multi-body dynamics simulation, finite element analysis, etc., are used to optimize the dynamic simulation of the ball head pin and the ball seat. These software and algorithms can provide more accurate simulation results, help better understand the performance and quality of the ball head pin and the ball seat, establish an optimization algorithm for simulation parameters, and minimize the error between the simulation results and the actual measurement data by continuously adjusting the parameters. Optimization algorithms such as genetic algorithms and particle swarm optimization algorithms can be used to automatically find the optimal simulation parameters.

[0049] The detection module acquires various physical data of the ball seat and the ball head pin during the dynamic simulation process. The acceleration sensor array of the detection module is used to detect the vibration acceleration of the rod part of the ball head pin in multiple movement directions. The acceleration sensor array is carefully set up, and multiple high-performance micro acceleration sensors are reasonably arranged at key positions of the rod part of the ball head pin. These sensors have high sensitivity, a wide frequency response range, and good stability, such as piezoelectric acceleration sensors. According to the movement characteristics and possible vibration modes of the ball head pin, sensors are arranged axially, radially, and tangentially on the rod part of the ball head pin to comprehensively detect the vibration conditions in all directions. At the same time, special installation jigs or adhesives are used to ensure that the sensors are firmly installed without affecting the normal movement and working performance of the ball head pin. Appropriate data acquisition parameters are set, such as sampling frequency, resolution, and triggering method, etc., to ensure that the signals output by the sensors can be collected in real time and accurately. The collected data is preprocessed, including operations such as filtering, denoising, and calibration, to improve the signal quality.

[0050] The vision sensor array of the detection module is used to detect the mating clearance between the ball part of the ball head pin and the mating part of the ball seat in multiple movement directions. High-precision industrial cameras are selected as vision sensors, considering cameras with high resolution, high frame rate, and good low-light performance. Cameras with specific functions can be selected according to the detection requirements, such as stereo cameras or high-speed cameras. Multiple vision sensors are reasonably arranged around the ball head pin and the ball seat. The positions and angles of the sensors are determined according to the shapes, sizes, and movement characteristics of the ball head pin and the ball seat. Appropriate image acquisition parameters are set, such as exposure time, gain, resolution, etc. The continuous acquisition mode or the trigger acquisition mode can be selected, and synchronous acquisition technology is used to improve efficiency. The collected images are preprocessed, including operations such as denoising, enhancement, and edge detection. Appropriate image analysis methods are used to determine the mating clearance between the ball head pin and the ball seat, such as calculating the distance between two contours through edge detection and contour extraction. The measured mating clearance data is output in a suitable format.

[0051] The temperature sensor array of the detection module is used to detect the temperature of the mating part of the ball seat in multiple movement directions; the force sensor array of the detection module is used to detect the force on the connecting part of the ball seat in multiple movement directions. Force sensors that can measure multi-directional forces are selected, such as six-axis force sensors or a combination of multiple single-axis force sensors. According to the structure and force characteristics of the connecting part, the force sensors are reasonably arranged to ensure that the forces in all directions can be accurately measured.

[0052] The data processing module performs filtering and noise reduction processing on the acquired various physical data to obtain vibration acceleration data, mating clearance data, temperature data, and force data. The vibration acceleration data, mating clearance data, and temperature data in the same movement direction are divided into a detection data group;

[0053] The quality evaluation module first makes a preliminary screening and judgment on the detection data groups, screens out the detection data groups that meet the standards and those that do not meet the standards, and marks the remaining detection data groups as comprehensive evaluation data groups;

[0054] Obtain the force data in the movement direction corresponding to the comprehensive evaluation data group, and obtain the force evaluation value according to the force data and the preset force bearing value;

[0055] Calculate the comprehensive evaluation index according to the force evaluation value, vibration acceleration data, fit clearance data, temperature data and their respective preset weights, and compare the comprehensive evaluation index with the preset standard index. If it is within the preset deviation range, it is judged that the comprehensive evaluation data group meets the standards; if it is outside the preset deviation range, it is judged that the comprehensive evaluation data group does not meet the standards;

[0056] If all detection data groups meet the standards, the steering part is judged to be of qualified quality; otherwise, it is of unqualified quality.

[0057] The quality evaluation module first makes a preliminary screening and judgment on the detection data groups, screens out the detection data groups that meet the standards and those that do not meet the standards, and marks the remaining detection data groups as comprehensive evaluation data groups, which specifically includes the following steps:

[0058] Obtain the vibration acceleration data, fit clearance data and temperature data in the same detection data group, and judge whether they exceed the first threshold. The first threshold specifically includes the corresponding first acceleration threshold, first clearance threshold and first temperature threshold. If any data in the same detection data group exceeds the first threshold, it is judged that the detection data group does not meet the standards;

[0059] For the case where none of the data exceeds the first threshold, judge whether it is less than or equal to the preset second threshold. The second threshold specifically includes the second acceleration threshold, second clearance threshold and second temperature threshold. If any data in the same detection data group is within the second threshold, it is judged that the detection data group meets the standards; otherwise, it is marked as a comprehensive evaluation data group.

[0060] The first threshold and the second threshold are determined through a large number of experiments and actual application data to establish a reasonable range of the first threshold and the second threshold. Statistical analysis methods are used, such as determining the threshold range based on the confidence interval of the normal distribution, to improve the scientificity and accuracy of the threshold. Considering the steering parts in different application scenarios of production, the threshold changes under different working conditions and application scenarios are considered, and a dynamic threshold adjustment mechanism is established. For example, according to factors such as the target working temperature and load in the application scenario of the ball head pin and the ball seat, the threshold range is automatically adjusted to improve the adaptability of the quality evaluation.

[0061] The specific steps for obtaining the force evaluation value according to the force data and the preset force bearing value are as follows:

[0062] Decompose the force data in the movement direction into lateral force, longitudinal force, and vertical force;

[0063] Calculate the ratios of the lateral force, longitudinal force, vertical force, and their respective preset force-bearing values;

[0064] Calculate the force evaluation value according to the obtained ratios and the corresponding preset weight parameters of the lateral force, longitudinal force, and vertical force. The force on the connection part between the tee and other devices is often a combination of complex multi-directional forces. Decomposing F into forces in multiple directions such as lateral and longitudinal can more accurately reflect the actual force state of the connection part in different directions, thereby more comprehensively evaluating the bearing capacity and quality status of the connection part. By analyzing the magnitudes and changes of forces in different directions, it can be determined in which directions the connection part is subjected to greater forces, and thus targeted design improvements can be made. For example, if it is found that the lateral force is large, the lateral stiffness of the connection part can be considered to be increased or other measures can be taken to reduce the influence of the lateral force. After decomposing the force, the forces in different directions can be evaluated and analyzed separately. Combining the weights of the forces in each direction, a more accurate quality evaluation result can be obtained. This helps to distinguish the severity of different quality problems and provides more specific guidance for quality control and improvement.

[0065] The specific formula for calculating the force evaluation value according to the obtained ratios and the corresponding preset weight parameters of the lateral force, longitudinal force, and vertical force is as follows:

[0066]

[0067] where D is the force evaluation value, F X is the lateral force, F XM is the force-bearing value corresponding to the lateral force, F Y is the longitudinal force, F YM is the force-bearing value corresponding to the longitudinal force, F Z is the vertical force, F ZM is the force-bearing value corresponding to the vertical force, 、 、 are the weight parameters corresponding to the lateral force, longitudinal force, and vertical force respectively.

[0068] The specific formula for calculating the comprehensive evaluation index according to the force evaluation value, vibration acceleration data, fit clearance data, temperature data, and their respective preset weights is as follows:

[0069]

[0070] where A is the vibration acceleration data, is the preset weight corresponding to the vibration acceleration data, B is the fit clearance data, For the preset weight corresponding to the fit clearance data, C is the temperature data, For the preset weight corresponding to the temperature data, D is the force evaluation value, For the preset weight corresponding to the force evaluation value, Q is the comprehensive evaluation index.

[0071] The data processing module performs filtering and noise reduction processing on the obtained physical data to obtain vibration acceleration data, fit clearance data, temperature data, and force data, specifically including:

[0072] The motion situation of the dynamic simulation module driving the ball head pin for dynamic simulation is detected multiple times to obtain multiple physical data, and the data module performs median filtering on the multiple physical data to remove noise and interference signals;

[0073] The multiple physical data are calculated to obtain the average value to obtain vibration acceleration data, fit clearance data, temperature data, and force data.

[0074] The acceleration sensor array is evenly distributed axially, radially, and tangentially on the rod part of the ball head pin.

[0075] A light shield and an LED light source are arranged at the visual sensor array to ensure uniform light source distribution and obtain clearer image data.

[0076] The following are the advantages of this solution compared with the prior art:

[0077] I. Comprehensiveness

[0078] Multi-parameter detection: Compared with traditional quality detection methods, this solution comprehensively considers multiple parameters such as vibration acceleration, fit clearance, temperature data, and the force condition of the connection part, and can more comprehensively reflect the quality status of the ball head pin and the ball seat. Traditional methods often only focus on a single parameter and cannot provide a complete quality assessment.

[0079] Dynamic simulation: By driving the dynamic simulation module to drive the ball head pin for dynamic simulation, the motion situation under actual working conditions can be simulated, making the detection result closer to the actual use state. In the prior art, there may be a lack of accurate simulation of actual working conditions, resulting in a gap between the detection result and the actual performance.

[0080] II. Accuracy

[0081] Threshold judgment and comprehensive evaluation: The first threshold and the second threshold range are set to preliminarily screen and further judge the detection data, and comprehensive evaluation is performed on the data in the intermediate range, improving the accuracy of quality judgment. At the same time, the weight parameter is introduced to calculate the comprehensive evaluation index Q, making the evaluation result more scientific and reasonable.

[0082] Decomposition and evaluation of forces: Decomposing the forces acting on the connection part into forces in multiple directions for analysis and evaluation can more accurately determine the bearing capacity and quality status of the connection part. The prior art may overlook the complexity of the forces acting on the connection part, resulting in inaccurate quality assessment.

[0083] III. Reliability

[0084] Sensor technology: By adopting advanced acceleration sensor arrays, vision sensor arrays, and temperature sensors, various parameters can be accurately measured, improving the reliability of the detection data. These sensors have high sensitivity, a wide frequency response range, and good stability, and can adapt to different working environments.

[0085] Comprehensive evaluation system: By establishing a perfect comprehensive evaluation system, multiple parameters are integrated and analyzed, improving the reliability of quality evaluation. This system can comprehensively consider the performance of the ball joint and ball seat in different aspects, avoiding the limitations of single-parameter evaluation.

[0086] The above-described embodiments do not constitute a limitation on the protection scope of the technical solution. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the above embodiments shall be included in the protection scope of the technical solution.

Claims

1. A method for inspecting the quality of an automobile steering part, which is used for an automobile steering part structure, wherein the automobile steering part structure comprises a ball stud and a ball seat, wherein the ball stud comprises a mounting portion, a rod portion and a ball head portion which are arranged in sequence, wherein the mounting portion is connected with a mounting nut; wherein the ball seat comprises a matching portion and a connecting portion which are arranged in sequence, wherein an active cavity is provided on the matching portion, wherein the ball head portion is movably connected in the active cavity, and wherein an end of the connecting portion which is away from the active cavity is connected with a clamping ring; It is characterized in that The automobile steering parts quality inspection method specifically comprises the following steps: Install and match the ball seat and ball stud in the steering component and fix them on the mounting module; The detection module is set according to the preset position to detect the ball seat and the ball stud; The dynamic simulation module is used to drive the ball pin to perform dynamic simulation to simulate the movement under actual working conditions; The detection module obtains various physical data of the ball seat and the ball stud during the dynamic simulation process, wherein the acceleration sensor array of the detection module is used to detect the vibration acceleration of the rod of the ball stud in multiple movement directions; the visual sensor array of the detection module is used to detect the matching clearance between the ball head of the ball stud and the matching part of the ball seat in multiple movement directions; the temperature sensor array of the detection module is used to detect the temperature of the matching part of the ball seat in multiple movement directions; the force sensor array of the detection module is used to detect the force of the connecting part of the ball seat in multiple movement directions; The data processing module filters and performs noise reduction processing on the acquired physical data to obtain vibration acceleration data, fit clearance data, temperature data and force data, and divides the vibration acceleration data, fit clearance data and temperature data in the same movement direction into a detection data group; The quality evaluation module first performs a preliminary screening and judgment on the test data group, screens out the test data groups that meet the standards and those that do not meet the standards, and marks the remaining test data groups as comprehensive evaluation data groups; Obtain force data in the motion direction corresponding to the comprehensive evaluation data group, and obtain a force evaluation value according to the force data and a preset force bearing value; A comprehensive evaluation index is calculated based on the force evaluation value, vibration acceleration data, fit clearance data, temperature data and their corresponding preset weights, and the comprehensive evaluation index is compared with the preset standard index. If it is within the preset deviation range, it is judged that the comprehensive evaluation data group meets the standard; if it is outside the preset deviation range, it is judged that the comprehensive evaluation data group does not meet the standard; If all the test data groups meet the standards, the steering component is judged to be of qualified quality, otherwise it is judged to be of unqualified quality.

2. The automobile steering parts quality inspection method according to claim 1, characterized in that: The quality evaluation module first performs a preliminary screening and judgment on the test data group, screens out the test data groups that meet the standards and those that do not meet the standards, and marks the remaining test data groups as comprehensive evaluation data groups. Specifically, the steps include: Obtaining vibration acceleration data, fit clearance data and temperature data in the same detection data group, and determining whether they exceed a first threshold, wherein the first threshold specifically includes a corresponding first acceleration threshold, a first clearance threshold and a first temperature threshold, and if any data in the same detection data group exceeds the first threshold, determining that the detection data group does not meet the standard; If any data does not exceed the first threshold, it is determined whether it is less than or equal to a preset second threshold, where the second threshold specifically includes a second acceleration threshold, a second gap threshold and a second temperature threshold. If any data in the same detection data group is within the second threshold, the detection data group is determined to meet the standard, otherwise it is marked as a comprehensive evaluation data group.

3. The automobile steering parts quality inspection method according to claim 2, characterized in that: The step of obtaining the stress evaluation value according to the stress data and the preset stress tolerance value specifically includes the following steps: Decompose the force data in the motion direction into lateral force, longitudinal force and vertical force; Calculate the ratio of the lateral force, longitudinal force, vertical force and their corresponding preset force bearing values ​​respectively; The force evaluation value is calculated based on the obtained ratio and the corresponding preset weight parameters of the lateral force, longitudinal force, and vertical force.

4. The automobile steering parts quality inspection method according to claim 3, characterized in that: The specific formula for calculating the force evaluation value based on the obtained ratio and the corresponding preset lateral force, longitudinal force, and vertical force weight parameters is as follows: Among them, D is the force evaluation value, F X is the lateral force, F XM is the force bearing value corresponding to the lateral force, F Y is the longitudinal force, F YM is the force bearing value corresponding to the longitudinal force, F Z is the vertical force, F ZM is the force bearing value corresponding to the vertical force, α X , α Y , α Z are the weight parameters corresponding to the lateral force, longitudinal force and vertical force respectively.

5. The automobile steering parts quality inspection method according to claim 4, characterized in that: The specific formula for calculating the comprehensive evaluation index based on the force evaluation value, vibration acceleration data, fit clearance data, temperature data and their corresponding preset weights is as follows: Q=β1×A+β2×B+β3×C+β4×D Among them, A is the vibration acceleration data, β1 is the preset weight corresponding to the vibration acceleration data, B is the fit clearance data, β2 is the preset weight corresponding to the fit clearance data, C is the temperature data, β3 is the preset weight corresponding to the temperature data, D is the force evaluation value, β4 is the preset weight corresponding to the force evaluation value, and Q is the comprehensive evaluation index.

6. The automobile steering parts quality inspection method according to claim 1, characterized in that: The data processing module filters and performs noise reduction processing on the acquired physical data to obtain vibration acceleration data, fit clearance data, temperature data and force data, which specifically include: The dynamic simulation module drives the ball pin to perform dynamic simulation motion conditions for multiple times to obtain multiple physical data, and the data module performs median filtering on the multiple physical data to remove noise and interference signals; The vibration acceleration data, fit clearance data, temperature data and force data are obtained by calculating the average value of multiple physical data.

7. The automobile steering parts quality inspection method according to claim 1, characterized in that: The acceleration sensor array is evenly distributed in the axial, radial and tangential directions of the ball stud rod.

8. The automobile steering parts quality inspection method according to claim 1, characterized in that: A light shield and an LED light source are arranged at the visual sensor array.

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