Automobile steering part structure and quality detection method thereof

Abstract

The invention discloses an automobile steering part structure and a quality detection method thereof, and the method comprises the steps: installing a ball seat and a ball pin on an installation submodule, setting an acceleration sensor array to detect the vibration acceleration of a rod part of the ball pin, setting a visual sensor array to detect a fit clearance, and setting a temperature sensor to detect the temperature of a fit part of the ball seat; and the data in the same movement direction are divided into the same detection data group. And the dynamic simulation module is driven to simulate the actual working movement condition. The quality evaluation module firstly judges whether the data is within a first threshold range or not, if yes, the quality is unqualified, and the rest are preliminarily qualified. Further judging whether the preliminary qualified data is within a second threshold value or not, if all the preliminary qualified data are within the second threshold value, determining that the preliminary qualified data are qualified, and if part of the preliminary qualified data is between the two threshold values, determining that a comprehensive evaluation data set is formed, and adding stress conditions of connecting parts with other devices according to vibration acceleration, fit clearance, temperature data and weight. The scheme comprehensively and accurately detects the quality of the steering part, and improves the product reliability.

Description

Technical Field

[0001] The invention relates to the technical field of automobile steering component detection, and in particular to an automobile steering component structure and a quality detection method thereof. Background Art

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

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

[0004] With the continuous advancement of industrial technology and increasingly fierce market competition, the quality requirements for ball studs and ball sockets continue to increase. Traditional quality inspection methods have many limitations and can no longer meet the needs of modern industry. In the past, quality inspections often focused on simple dimensional measurements and appearance inspections, which can only provide limited information and cannot provide in-depth understanding of the performance of ball studs and ball sockets under actual working conditions.

[0005] In practical applications, the working environment of ball studs and ball sockets is complex and changeable. On the one hand, they have to withstand dynamic loads such as vibration and impact from different directions, which will affect the structural strength of the ball stud and the matching stability of the ball socket. 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 matching clearance between the ball stud and the ball socket and the stress conditions of the connection parts.

[0006] In addition, the ball seat is usually tightly connected to other components, and the stress conditions at the connection have a crucial impact on the quality of the ball stud and the ball seat. The interaction of forces in different directions may cause the connection to become loose, deformed, or even damaged, thus affecting the normal operation of the entire system.

[0007] In order to meet the demand of modern industry for high-quality products, a more advanced and comprehensive quality inspection method is urgently needed. This method should be able to comprehensively consider multiple parameters and factors, such as the vibration acceleration of the ball stud rod, the fit clearance between the ball stud and the ball seat, the temperature data of the ball seat fitting part, and the stress conditions of the connection parts between the ball seat and other devices. Through accurate measurement and comprehensive analysis of these parameters, a comprehensive evaluation of the quality of the ball stud and the ball seat can be achieved, ensuring that the product can maintain good performance and reliability under various complex working conditions, 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 vehicle steering component structure, which has the advantages of reliable use and convenient production.

[0009] The above technical objectives of the present invention are achieved through the following technical solutions:

[0010] A vehicle steering component structure, comprising a ball pin and a ball seat, wherein the ball pin comprises a mounting portion, a rod portion and a ball head portion arranged in sequence, wherein the mounting portion is connected to a mounting nut; the ball seat comprises a matching portion and a connecting portion arranged in sequence, wherein an active cavity is provided on the matching portion, wherein the ball head portion is movably connected to the active cavity, and wherein an end of the connecting portion away from the active cavity is connected to a clamping ring.

[0011] Another object of the present invention is to provide a method for detecting the quality of automobile steering parts, which is used for the above-mentioned automobile steering parts structure and has the advantages of improving the accuracy and reliability of quality judgment and avoiding the limitations of single parameter evaluation.

[0012] The above technical objectives of the present invention are achieved through the following technical solutions:

[0013] A method for detecting the quality of automobile steering parts, comprising the following steps:

[0014] Install and match the ball seat and ball stud in the steering component and fix them on the mounting module;

[0015] The detection module is set according to the preset position to detect the ball seat and the ball stud;

[0016] The dynamic simulation module is used to drive the ball pin to perform dynamic simulation to simulate the movement under actual working conditions;

[0017] 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;

[0018] 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;

[0019] 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;

[0020] 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;

[0021] 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;

[0022] 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.

[0023] Further configuration: 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 including the following steps:

[0024] 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;

[0025] 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.

[0026] Further configuration: the step of obtaining the stress evaluation value according to the stress data and the preset stress tolerance value specifically includes the following steps:

[0027] Decompose the force data in the motion direction into lateral force, longitudinal force and vertical force;

[0028] Calculate the ratio of the lateral force, longitudinal force, vertical force and their corresponding preset force bearing values ​​respectively;

[0029] 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.

[0030] Further setting: 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:

[0031]

[0032] 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.

[0033] Further setting: 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:

[0034] Q=β1×A+β2×B+β3×C+β4×D

[0035] 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.

[0036] Further configuration: 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, specifically including:

[0037] 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;

[0038] The vibration acceleration data, fit clearance data, temperature data and force data are obtained by calculating the average value of multiple physical data.

[0039] It is further arranged that: the acceleration sensor array is evenly distributed in the axial, radial and tangential directions of the ball stud rod.

[0040] Further configuration: a light shield and an LED light source are provided at the visual sensor array.

[0041] In summary, the present invention has the following beneficial effects: Compared with the traditional quality detection method, the present solution comprehensively considers multiple parameters such as vibration acceleration, fit clearance, temperature data and stress conditions of the connection parts, and can more comprehensively reflect the quality status of the ball stud 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 stud to perform dynamic simulation, the movement conditions under actual working conditions can be simulated, so that the detection results are closer to the actual use state. The prior art may lack accurate simulation of actual working conditions, resulting in a gap between the detection results and the actual performance. The first threshold and the second threshold range are set to preliminarily screen and further judge the detection data, and the data in the middle range is comprehensively evaluated, which improves the accuracy of quality judgment. At the same time, the weight parameter is introduced to calculate the comprehensive evaluation index Q, so that the evaluation result is more scientific and reasonable. The force on the connection part is decomposed into forces in multiple directions for analysis and evaluation, which can more accurately determine the bearing capacity and quality status of the connection part. The prior art may ignore the complexity of the stress on the connection part, resulting in inaccurate quality assessment. By establishing a complete comprehensive evaluation system, multiple parameters are integrated and analyzed, and the reliability of quality evaluation is improved. The system can comprehensively consider the performance of the ball stud and ball seat in different aspects, avoiding the limitation of single parameter evaluation. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a schematic diagram of the overall structure of the embodiment;

[0043] Figure 2 It is an overall flow chart of the embodiment.

[0044] In the figure, 1, ball stud; 101, ball head; 102, rod; 103, mounting portion; 2, ball seat; 201, matching portion; 202, movable cavity; 203, connecting portion; 3, mounting nut; 4, clamping ring. DETAILED DESCRIPTION

[0045] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0046] Embodiment 1:

[0047] like Figure 1 As shown, a car steering component structure includes a ball pin 1 and a ball seat 2, wherein the ball pin 1 includes a mounting portion 103, a rod portion 102 and a ball head portion 101 which are arranged in sequence, and 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 which are arranged in sequence, and an active cavity 202 is provided on the mating portion 201, and the ball head portion 101 is movably connected in the active cavity 202, and a clamping ring 4 is connected to the end of the connecting portion 203 which is away from the active cavity 202.

[0048] like Figure 2 As shown, a method for inspecting the quality of automobile steering parts is used for inspecting the quality of the above-mentioned automobile steering parts structure, and specifically comprises the following steps:

[0049] Install and match the ball seat and ball stud in the steering component and fix them on the mounting module;

[0050] The detection module is set according to the preset position to detect the ball seat and the ball stud;

[0051] The dynamic simulation module is used to drive the ball pin to perform dynamic simulation to simulate the movement under actual working conditions, study the movement characteristics and force conditions of the ball pin and the ball seat under actual working conditions, and establish a more accurate dynamic simulation model. It is possible to consider introducing more practical factors, such as different workloads, temperature changes, vibration frequencies, etc., to improve the authenticity of the simulation, and use advanced simulation software and algorithms, such as multi-body dynamics simulation, finite element analysis, etc., to optimize the dynamic simulation of the ball 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 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.

[0052] The detection module obtains various physical data of the ball seat and the ball pin during the dynamic simulation process. The acceleration sensor array of the detection module is used to detect the vibration acceleration of the rod of the ball pin in multiple movement directions. The acceleration sensor array is carefully set, and multiple high-performance micro-acceleration sensors are reasonably arranged at key positions of the rod of the ball pin. These sensors have high sensitivity, wide frequency response range and good stability, such as piezoelectric acceleration sensors. According to the movement characteristics of the ball pin and the possible vibration mode, sensors are arranged in the axial, radial and tangential directions of the rod of the ball pin to comprehensively detect the vibration in all directions. At the same time, a special mounting fixture or adhesive is used to ensure that the sensor is firmly installed without affecting the normal movement and working performance of the ball pin. Appropriate data acquisition parameters, such as sampling frequency, resolution and trigger mode, are set to ensure that the signal output by the sensor can be collected in real time and accurately. The collected data is preprocessed, including filtering, denoising and calibration operations, to improve the signal quality.

[0053] The visual sensor array of the detection module is used to detect the fit clearance between the ball head of the ball stud and the mating part of the ball socket in multiple movement directions. A high-precision industrial camera is selected as the visual sensor. A camera with high resolution, high frame rate and good low-light performance is considered. A camera with specific functions, such as a stereo camera or a high-speed camera, can be selected according to the detection requirements. Multiple visual sensors are reasonably arranged around the ball stud and the ball socket, and the sensor position and angle are determined according to the shape, size and movement characteristics of the ball stud and the ball socket. Appropriate image acquisition parameters are set, such as exposure time, gain, resolution, etc. Continuous acquisition mode or triggered acquisition mode can be selected, and synchronous acquisition technology is used to improve efficiency. The collected images are preprocessed, including denoising, enhancement, edge detection and other operations, and the fit clearance between the ball stud and the ball socket is determined by using appropriate image analysis methods, such as calculating the distance between two contours through edge detection and contour extraction. The measured fit clearance data is output in a suitable format.

[0054] The temperature sensor array of the detection module is used to detect the temperature of the mating part of the ball socket 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 socket in multiple movement directions. Force sensors capable of measuring multi-directional forces are selected, such as a six-axis force sensor or a combination of multiple single-axis force sensors. The force sensors are reasonably arranged according to the structure and force characteristics of the connecting parts to ensure that the forces in all directions can be accurately measured.

[0055] 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;

[0056] 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;

[0057] 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;

[0058] 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;

[0059] 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.

[0060] 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:

[0061] 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;

[0062] 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.

[0063] The first and second thresholds are established with reasonable ranges through a large number of experiments and actual application data. 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. According to the changes in thresholds under different working conditions and application scenarios of steering parts produced in different application scenarios, a dynamic threshold adjustment mechanism is established. For example, according to the target working temperature, load and other factors in the application scenarios of the ball stud and ball seat, the threshold range is automatically adjusted to improve the adaptability of quality evaluation.

[0064] The step of obtaining the stress evaluation value according to the stress data and the preset stress tolerance value specifically includes the following steps:

[0065] Decompose the force data in the motion direction into lateral force, longitudinal force and vertical force;

[0066] Calculate the ratio of the lateral force, longitudinal force, vertical force and their corresponding preset force bearing values ​​respectively;

[0067] 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. The force on the connection between the ball seat and other devices is often a combination of complex multi-directional forces. Decomposing F into forces in multiple directions such as lateral and longitudinal directions 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 size and changes of forces in different directions, it can be determined in which directions the connection part is subjected to greater force, so as to make targeted design improvements. For example, if the lateral force is found to be large, it can be considered to increase the lateral stiffness of the connection part or take other measures to reduce the impact of the lateral force. After the force is decomposed, the forces in different directions can be evaluated and analyzed separately. Combined with 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 provide more specific guidance for quality control and improvement.

[0068] 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:

[0069]

[0070] 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.

[0071] 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:

[0072] Q=β1×A+β2×B+β3×C+β4×D

[0073] 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.

[0074] 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:

[0075] 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;

[0076] The vibration acceleration data, fit clearance data, temperature data and force data are obtained by calculating the average value of multiple physical data.

[0077] The acceleration sensor array is evenly distributed in the axial, radial and tangential directions of the ball stud rod.

[0078] A light shield and an LED light source are provided at the visual sensor array to ensure uniform distribution of the light source and obtain clearer image data.

[0079] The following are the advantages of this solution over existing technologies:

[0080] 1. Comprehensiveness

[0081] Multi-parameter testing: Compared with traditional quality testing methods, this solution comprehensively considers multiple parameters such as vibration acceleration, fit clearance, temperature data, and stress conditions at the connection parts, which can more comprehensively reflect the quality of the ball stud and ball seat. Traditional methods often only focus on a single parameter and cannot provide a complete quality assessment.

[0082] Dynamic simulation: By driving the dynamic simulation module to drive the ball stud to perform dynamic simulation, the movement under actual working conditions can be simulated, making the test results closer to the actual use status. The existing technology may lack accurate simulation of actual working conditions, resulting in a gap between the test results and actual performance.

[0083] 2. Accuracy

[0084] Threshold judgment and comprehensive evaluation: Set the first threshold and the second threshold range to conduct preliminary screening and further judgment of the test data, and conduct comprehensive evaluation of the data in the middle range to improve the accuracy of quality judgment. At the same time, introduce weight parameters to calculate the comprehensive evaluation index Q, making the evaluation results more scientific and reasonable.

[0085] Force decomposition and evaluation: Decomposing the forces acting on the connection into forces in multiple directions for analysis and evaluation can more accurately determine the bearing capacity and quality status of the connection. Existing technologies may ignore the complexity of the forces acting on the connection, resulting in inaccurate quality assessment.

[0086] 3. Reliability

[0087] Sensor technology: The use of advanced acceleration sensor arrays, visual sensor arrays and temperature sensors can accurately measure various parameters and improve the reliability of detection data. These sensors have high sensitivity, wide frequency response range and good stability, and can adapt to different working environments.

[0088] Comprehensive evaluation system: By establishing a comprehensive evaluation system, multiple parameters are integrated and analyzed to improve the reliability of quality evaluation. The system can comprehensively consider the performance of ball studs and ball seats in different aspects, avoiding the limitations of single parameter evaluation.

[0089] The above-described implementation methods do not constitute a limitation on the protection scope of the technical solution. Any modification, equivalent replacement and improvement made within the spirit and principle of the above-described implementation methods shall be included in the protection scope of the technical solution.

Claims

1. A vehicle steering component structure, characterized in that: It includes a ball pin and a ball seat, the ball pin includes a mounting portion, a rod portion and a ball head portion which are arranged in sequence, the mounting portion is connected with a mounting nut; the ball seat includes a matching portion and a connecting portion which are arranged in sequence, an active cavity is opened on the matching portion, the ball head portion is movably connected in the active cavity, and a clamping ring is connected to the end of the connecting portion away from the active cavity.

2. A method for detecting the quality of automobile steering parts, used for the automobile steering structure according to claim 1, characterized in that: The specific steps include: 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.

3. The automobile steering parts quality inspection method according to claim 2, 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.

4. The automobile steering parts quality inspection method according to claim 3, 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.

5. The automobile steering parts quality inspection method according to claim 4, 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.

6. The automobile steering parts quality inspection method according to claim 5, 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.

7. The automobile steering parts quality inspection method according to claim 2, 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.

8. The automobile steering parts quality inspection method according to claim 2, characterized in that: The acceleration sensor array is evenly distributed in the axial, radial and tangential directions of the ball stud rod.

9. The automobile steering parts quality inspection method according to claim 2, characterized in that: A light shield and an LED light source are arranged at the visual sensor array.

Images