A clock product assembly quality data analysis system

Abstract

The present invention discloses a data analysis system for the assembly quality of clock products, which relates to the technical field of clock assembly quality evaluation and management. The data analysis system for the assembly quality of clock products includes a data acquisition module for acquiring data after the assembly of the clock products to be analyzed, a first data analysis module for respectively performing data analysis on the collected data to obtain an appearance integrity index and an assembly accuracy index, a second data analysis module for acquiring functional test data and analyzing to obtain a functional reliability index, and a comprehensive analysis module for comprehensively analyzing the appearance integrity index, the assembly accuracy index, and the functional reliability index to obtain an assembly quality index. The present invention judges and analyzes the assembly quality index through an assembly repair management module and takes corresponding assembly repair measures, so as to accurately evaluate the tiny errors existing inside the clock after assembly, ensure the precision and stability of the clock products, and then comprehensively evaluate the product quality.

Description

Technical Field

[0001] The present invention relates to the technical field of clock assembly quality assessment and management, and specifically to a clock product assembly quality data analysis system. Background Art

[0002] The assembly of clock products refers to the process of precisely assembling various components of a clock together according to design requirements. This process involves multiple steps, including the installation of mechanical structures, the connection of electronic components, the filling of lubricating oil, and the inspection of waterproof seals, etc. After the assembly of clock products, a series of performance tests need to be carried out on them to evaluate whether they meet the design specifications and usage requirements. Traditional clock quality inspections rely on manual inspections, visual inspections, and simple functional tests, but they are not accurate enough for clock quality, resulting in products with problems entering the market or reaching consumers, increasing the scrap rate. This not only increases production costs but also may damage the brand reputation and affect the market competitiveness of the enterprise. Therefore, how to efficiently and accurately evaluate the quality after assembly has become an important issue for clock products.

[0003] The prior art, such as a clock product assembly quality data analysis system disclosed in the patent application with the publication number: CN114676957A, the system includes: a measurement module: an automatic detection module for the accuracy of clock running time, a measurement module for the parallelism of clock pointer assembly, an analysis module: including a data comprehensive analysis module, a data sorting and statistics module, a comprehensive management module: including a user permission management module, a measurement data module, a measurement report generation and management module, a data interaction management module; The advantages of the present invention lie in the full-chain quality data analysis of the clock needle assembly quality and the accuracy of clock running time, using the product quality data platform to analyze the reasons for problems that are likely to occur during the production process, promoting the digitalization, networking, and intelligentization of the production process, improving and optimizing the production process technology, automatically detecting and storing process information, online real-time monitoring and feedback, making the production process quality controllable and stable, improving production efficiency and product quality, and reducing production costs.

[0004] Based on the above scheme, it is found that the limitations of the prior art at least include the following problems. The prior art lacks the analysis of the internal three-dimensional point cloud data after product assembly. In a small precision device such as a clock product, the tiny errors inside after assembly are difficult to be effectively judged through appearance images, resulting in misjudgments, which in turn affect the long-term use stability and accuracy performance of the product. And the prior art lacks the comprehensive analysis of appearance, assembly accuracy, and functional reliability, resulting in difficulty in comprehensively evaluating the assembly quality of clock products, and thus affecting the quality control and accuracy of the final product. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the present invention provides a data analysis system for the assembly quality of clock products, which solves the problems of the lack of analysis of the internal three-dimensional point cloud data after product assembly and the difficulty in comprehensively evaluating the assembly quality of clock products in the prior art.

[0006] To achieve the above objectives, the present invention is realized through the following technical solutions: A data analysis system for the assembly quality of clock products, comprising: a data acquisition module, a first data analysis module, a second data analysis module, a comprehensive analysis module, and an assembly repair management module; the data acquisition module is used to obtain the clock appearance image data and the internal three-dimensional point cloud data of the clock product to be analyzed after assembly and perform preprocessing; the first data analysis module is used to perform data analysis on the clock appearance image data and the internal three-dimensional point cloud data of the clock product to be analyzed after preprocessing, and obtain the appearance integrity index and the assembly accuracy index of the clock product to be analyzed; the second data analysis module is used to simultaneously obtain the functional test data of the clock product to be analyzed and perform data analysis to obtain the functional reliability index of the clock product to be analyzed; the comprehensive analysis module is used to comprehensively analyze the appearance integrity index, the assembly accuracy index, and the functional reliability index of the clock product to be analyzed to obtain the assembly quality index of the clock product to be analyzed; the assembly repair management module is used to judge and analyze the assembly quality index of the clock product to be analyzed with a preset assembly quality threshold and take corresponding assembly repair measures based on the judgment and analysis.

[0007] Further, the clock appearance image data is specifically the pixel value and two-dimensional coordinates of each pixel point in the clock appearance image, the internal three-dimensional point cloud data of the clock is specifically the three-dimensional coordinates of each voxel point, and the functional test data includes the water tightness pressure value, the waterproof depth value, the bubble penetration rate value, the movement vibration frequency value, the balance wheel amplitude value, the lubricating oil viscosity value, the lubricating oil layer thickness value, the pointer rotation torque value, the bearing clearance value, and the pointer contact force value.

[0008] Further, the specific formula for calculating the assembly quality index of the clock product to be analyzed is as follows:

[0009] ;

[0010] Among them, is the assembly quality index of the clock product to be analyzed, is the appearance integrity index of the clock product to be analyzed, is the appearance coefficient stored in the database, is the assembly accuracy index of the clock product to be analyzed, is the accuracy coefficient stored in the database, is the functional reliability index of the clock product to be analyzed, is the functional coefficient stored in the database, , is the natural constant.

[0011] Further, the specific process of obtaining the appearance integrity index of the clock product to be analyzed is as follows: Edge recognition processing is performed on the pixel values of each pixel point in the clock appearance image of the clock product to be analyzed, and several defective edge pixel points in the clock appearance image of the clock product to be analyzed are obtained; Connectivity processing is performed on each defective edge pixel point in the clock appearance image of the clock product to be analyzed, and several defective regions in the clock appearance image of the clock product to be analyzed are obtained; And summation analysis is performed on several pixel points and defective edge pixel points in each defective region in the clock appearance image of the clock product to be analyzed to obtain the area of each defective region in the clock appearance image of the clock product to be analyzed; Comprehensive analysis is performed on the two-dimensional coordinates of each defective edge pixel point in each defective region in the clock appearance image of the clock product to be analyzed to obtain the perimeter of each defective region in the clock appearance image of the clock product to be analyzed, and comprehensive analysis is performed in combination with the area to obtain the appearance integrity index of the clock product to be analyzed.

[0012] Further, the specific steps of obtaining the assembly precision index of the clock product to be analyzed are as follows: Region segmentation processing is performed on the three-dimensional coordinates of each voxel point of the clock product to be analyzed to obtain several key component regions of the clock product to be analyzed; Weighted average processing is performed on the three-dimensional coordinates of each voxel point in each key component region of the clock product to be analyzed to obtain the three-dimensional coordinates of the centroid of each key component region of the clock product to be analyzed; Comprehensive analysis is performed on the three-dimensional coordinates of the centroid of each key component region of the clock product to be analyzed to obtain the horizontal relative angle, vertical relative angle, and vertical relative angle of each group of adjacent key component regions of the clock product to be analyzed, and comprehensive analysis is performed in combination with the horizontal relative reference angle, vertical relative reference angle, and vertical relative reference angle of each group of adjacent key component regions stored in the database to obtain the assembly precision index of the clock product to be analyzed.

[0013] Further, the specific formula for calculating the assembly precision index of the clock product to be analyzed is as follows: ; where, is the assembly precision index of the clock product to be analyzed, is the horizontal relative angle of the th group of adjacent key component regions of the clock product to be analyzed, is the horizontal relative reference angle of the th group of adjacent key component regions stored in the database, is the horizontal coefficient stored in the database, The vertical relative angle of a group of adjacent key component areas is the vertical relative angle of the group of adjacent key component areas stored in the database is the vertical coefficient stored in the database is the vertical relative angle of the group of adjacent key component areas of the clock product to be analyzed is the vertical relative angle of the group of adjacent key component areas stored in the database is the vertical coefficient stored in the database , , is the number of groups of adjacent key component areas

[0014] Further, the specific steps to obtain the functional reliability index of the clock product to be analyzed are as follows: Standardize the watertight pressure value, waterproof depth value, and bubble penetration rate value of the clock product to be analyzed; comprehensively analyze the standardized watertight pressure value, waterproof depth value, and bubble penetration rate value of the clock product to be analyzed to obtain the waterproof function index of the clock product to be analyzed; and comprehensively analyze the movement vibration frequency value, balance wheel amplitude value, lubricating oil viscosity value, lubricating oil layer thickness value, pointer rotation torque value, bearing clearance value, and pointer contact force value of the clock product to be analyzed to obtain the timekeeping accuracy index of the clock product to be analyzed; and comprehensively analyze the waterproof function index and timekeeping accuracy index of the clock product to be analyzed to obtain the functional reliability index of the clock product to be analyzed

[0015] Further, the specific steps to obtain the timekeeping accuracy index of the clock product to be analyzed are as follows: Obtain the movement vibration frequency reference value, balance wheel amplitude reference value, lubricating oil viscosity reference value, lubricating oil layer thickness reference value, pointer rotation torque reference value, bearing clearance reference value, and pointer contact force reference value of the clock product to be analyzed; comprehensively analyze the movement vibration frequency reference value, balance wheel amplitude reference value, lubricating oil viscosity reference value, lubricating oil layer thickness reference value, movement vibration frequency value, balance wheel amplitude value, lubricating oil viscosity value, and lubricating oil layer thickness value of the clock product to be analyzed to obtain the power transmission stability index of the clock product to be analyzed; and comprehensively analyze the pointer rotation torque reference value, bearing clearance reference value, pointer contact force reference value, pointer rotation torque value, bearing clearance value, and pointer contact force value of the clock product to be analyzed to obtain the pointer movement smoothness index of the clock product to be analyzed; and comprehensively analyze the power transmission stability index and pointer movement smoothness index of the clock product to be analyzed to obtain the timekeeping accuracy index of the clock product to be analyzed

[0016] Further, the specific formulas for calculating the power transmission stability index, pointer movement smoothness index, and timekeeping accuracy index of the clock product to be analyzed are as follows: ; where is the power transmission stability index of the clock product to be analyzed, is the movement vibration frequency value of the clock product to be analyzed, is the reference value of the movement vibration frequency of the clock product to be analyzed, is the vibration coefficient stored in the database, is the balance wheel amplitude value of the clock product to be analyzed, is the reference value of the balance wheel amplitude of the clock product to be analyzed, is the amplitude coefficient stored in the database, is the lubricating oil viscosity value of the clock product to be analyzed, is the reference value of the lubricating oil viscosity of the clock product to be analyzed, is the viscosity coefficient stored in the database, is the lubricating oil layer thickness value of the clock product to be analyzed, is the reference value of the lubricating oil layer thickness of the clock product to be analyzed, is the thickness coefficient stored in the database, , is the pointer movement smoothness index of the clock product to be analyzed, is the pointer driving torque value of the clock product to be analyzed, is the reference value of the pointer driving torque of the clock product to be analyzed, is the torque coefficient stored in the database, is the bearing clearance value of the clock product to be analyzed, is the reference value of the bearing clearance of the clock product to be analyzed, is the clearance coefficient stored in the database, is the pointer contact force value of the clock product to be analyzed, is the reference value of the pointer contact force of the clock product to be analyzed, is the contact coefficient stored in the database, , is the timekeeping accuracy index of the clock product to be analyzed, is the power coefficient stored in the database, is the pointer smoothness coefficient stored in the database, , is the natural constant.

[0017] Further, the specific steps for taking corresponding assembly repair measures based on judgment and analysis are as follows: If the assembly quality index of the clock product to be analyzed is lower than or equal to the preset assembly quality threshold, the clock product to be analyzed is marked as a non-conforming product and repair measures are taken; if the assembly quality index of the clock product to be analyzed is higher than the preset assembly quality threshold, the clock product to be analyzed is marked as a conforming product.

[0018] The present invention has the following beneficial effects:

[0019] (1) The clock product assembly quality data analysis system can accurately evaluate whether the internal structure of the assembled clock meets the design standards by obtaining the internal three-dimensional point cloud data of the clock after assembly and analyzing to obtain the assembly accuracy index, and then can detect the tiny errors existing after assembly, so as to ensure the precision and long-term stability of the clock product.

[0020] (2) The clock product assembly quality data analysis system comprehensively analyzes the appearance integrity index, the assembly accuracy index and the function reliability index to conduct a comprehensive quality assessment of the clock product, and uses the function reliability index analyzed by the second data analysis module to ensure that the product not only meets the standards in appearance and assembly, but also maintains long-term stability and reliability in function, so that the manufacturer can comprehensively understand the assembly quality of the product, thereby reducing the after-sales service and repair costs caused by poor product functions, and then enhancing the overall market competitiveness of the product.

[0021] (3) The clock product assembly quality data analysis system compares and analyzes the assembly quality index of the clock product with the preset quality threshold. If the product does not meet the quality standard, it will be automatically marked as a non-conforming product to prevent non-conforming products from flowing into the market and perform quality repair on non-conforming clock products, thereby improving the final pass rate of the product.

[0022] Of course, any product implementing the present invention does not necessarily need to achieve all the above-mentioned advantages simultaneously. Brief Description of the Drawings

[0023] Figure 1 It is a block diagram of a clock product assembly quality data analysis system of the present invention.

[0024] Figure 2 It is a flowchart of the steps for obtaining the appearance integrity index of the clock product to be analyzed in a clock product assembly quality data analysis system of the present invention.

[0025] Figure 3 It is a flowchart of the steps for the function reliability index of the clock product to be analyzed in a clock product assembly quality data analysis system of the present invention. Detailed Embodiments

[0026] The general idea for the problems in the embodiments of this application is as follows:

[0027] First, after the clock product is assembled, the data acquisition module acquires the clock appearance image data and the internal three-dimensional point cloud data. Then, the first data analysis module analyzes the appearance image data and the three-dimensional point cloud data respectively to obtain the appearance integrity index and the assembly accuracy index of the clock product to be analyzed. At the same time, the second data analysis module acquires the functional test data of the clock product to be analyzed and analyzes it to obtain the functional reliability index of the clock product to be analyzed. Then, the comprehensive analysis module comprehensively analyzes the appearance integrity index, the assembly accuracy index, and the functional reliability index to obtain the assembly quality index, which is used to comprehensively reflect the assembly quality of the clock product. Finally, the assembly repair management module judges the assembly quality index and the preset assembly quality threshold, and takes corresponding assembly repair measures based on the judgment analysis.

[0028] Please refer to Figure 1 , an embodiment of the present invention provides a technical solution: a data analysis system for the assembly quality of a clock product, including: a data acquisition module, a first data analysis module, a second data analysis module, a comprehensive analysis module, and an assembly repair management module; the data acquisition module is used to acquire the clock appearance image data and the internal three-dimensional point cloud data of the clock product to be analyzed after assembly and perform preprocessing; the first data analysis module is used to perform data analysis on the clock appearance image data and the internal three-dimensional point cloud data of the clock product to be analyzed after preprocessing to obtain the appearance integrity index and the assembly accuracy index of the clock product to be analyzed; the second data analysis module is used to acquire the functional test data of the clock product to be analyzed at the same time and perform data analysis to obtain the functional reliability index of the clock product to be analyzed; the comprehensive analysis module is used to comprehensively analyze the appearance integrity index, the assembly accuracy index, and the functional reliability index of the clock product to be analyzed to obtain the assembly quality index of the clock product to be analyzed; the assembly repair management module is used to judge and analyze the assembly quality index of the clock product to be analyzed and the preset assembly quality threshold, and take corresponding assembly repair measures based on the judgment analysis.

[0029] The clock appearance image data is specifically the pixel value and two-dimensional coordinates of each pixel point in the clock appearance image. The internal three-dimensional point cloud data of the clock is specifically the three-dimensional coordinates of each voxel point. The functional test data includes the watertight pressure value, the waterproof depth value, the bubble penetration rate value, the movement vibration frequency value, the balance wheel amplitude value, the lubricating oil viscosity value, the lubricating oil layer thickness value, the pointer rotation torque value, the bearing clearance value, and the pointer contact force value.

[0030] Among them, the two-dimensional coordinates are established with the upper left corner of the clock face image as the origin, the horizontal direction as the X-axis, and the vertical direction as the Y-axis to form a two-dimensional coordinate system.

[0031] The three-dimensional coordinates take the center point of the dial as the origin, the horizontal axis of the dial as the X-axis, that is, extending horizontally from the center of the dial to the right, the vertical axis of the dial as the Y-axis, the Y-axis is perpendicular to the X-axis and points in the vertical direction of the dial, and the axis perpendicular to the dial plane is the Z-axis, pointing in the vertical direction of the dial.

[0032] The water tightness pressure value is the maximum water pressure that the clock can withstand underwater, which can be obtained through a pressure sensor and is used to reflect the waterproof performance of the clock.

[0033] The waterproof depth value is the depth of water that the clock can withstand without water penetration underwater, which is used to reflect the waterproof ability of the clock.

[0034] The bubble penetration rate value is the speed at which tiny bubbles in water pass through the sealing structure of the clock, which can be obtained through a pressure sensor and is used to reflect the airtightness of the clock.

[0035] The movement vibration frequency value is the frequency of the escapement mechanism vibration in the clock movement, which can be measured by a vibrometer and the measurement result is uploaded to the database. It is used to reflect the accuracy of the clock's timekeeping.

[0036] The balance wheel amplitude value is the maximum deviation position of the balance wheel during its vibration period, which can be obtained through a laser vibration sensor and is used to reflect the time stability of the clock.

[0037] The lubricating oil viscosity value is the resistance of the lubricating oil flowing between the movement components, that is, the fluidity of the lubricating oil. It can be measured by a viscometer and the measurement result is uploaded to the database. The lubricating oil viscosity value is used to reflect the operating precision of the clock movement (because the lubricating oil viscosity is appropriate, the components of the movement can smoothly transmit power to ensure accurate stepping or swinging).

[0038] The lubricating oil layer thickness value is the average value of the thickness of the lubricating oil film between the contact surfaces of each movement component. It can be measured by an ultrasonic thickness gauge and the measurement result is uploaded to the database. It is used to reflect the existence and stability of the oil film between the movement components. An appropriate oil film thickness can ensure that the parts do not directly contact, reduce friction, and ensure smooth power transmission.

[0039] The pointer turning torque value is the torque required to rotate the pointer of the clock (such as the hour hand), which can be obtained through a torque sensor and is used to reflect the smoothness and fluency during the pointer rotation process.

[0040] The bearing clearance value is the distance value between the inner and outer rings of the bearing, which can be obtained through a laser displacement sensor and is used to reflect the operating stability of the bearing.

[0041] The pointer contact force value is the force generated when the pointer contacts the bearing in a clock movement. It can be obtained by the force sensor method and is used to reflect the smooth rotation of the pointer.

[0042] The specific formula for calculating the assembly quality index of the clock product to be analyzed is as follows: ; where is the assembly quality index of the clock product to be analyzed, is the appearance integrity index of the clock product to be analyzed, is the appearance coefficient stored in the database, is the assembly accuracy index of the clock product to be analyzed, is the accuracy coefficient stored in the database, is the functional reliability index of the clock product to be analyzed, is the function coefficient stored in the database, , is the natural constant, and its value is 2.71 in this embodiment.

[0043] It should be noted that , , The specific acquisition process of is as follows: Read the appearance integrity index, assembly accuracy index, and functional reliability index of the clock product to be analyzed (it should be noted here that the appearance integrity index, assembly accuracy index, and functional reliability index are all dimensionless indexes, so they can be directly calculated), perform summation analysis to obtain the assembly quality sum value, and perform ratio analysis on the appearance integrity index, assembly accuracy index, and functional reliability index of the clock product to be analyzed respectively with the assembly quality sum value, and use the ratio analysis results as the corresponding coefficients.

[0044] Specifically, such as Figure 2As shown in the figure, the specific process of obtaining the appearance integrity index of the clock product to be analyzed is as follows: perform edge recognition processing on the pixel values of each pixel point in the clock appearance image of the clock product to be analyzed, and obtain several defective edge pixel points in the clock appearance image of the clock product to be analyzed; perform connectivity processing on each defective edge pixel point in the clock appearance image of the clock product to be analyzed, and obtain several defective areas in the clock appearance image of the clock product to be analyzed; and perform summation analysis on several pixel points and defective edge pixel points in each defective area in the clock appearance image of the clock product to be analyzed, and obtain the area of each defective area in the clock appearance image of the clock product to be analyzed; perform comprehensive analysis on the two-dimensional coordinates of each defective edge pixel point in each defective area in the clock appearance image of the clock product to be analyzed, obtain the perimeter of each defective area in the clock appearance image of the clock product to be analyzed, and perform comprehensive analysis in combination with the area to obtain the appearance integrity index of the clock product to be analyzed.

[0045] Among them, the specific formulas for calculating the perimeter of each defective area and the appearance integrity index in the clock appearance image of the clock product to be analyzed are as follows: ; among them, is the perimeter of the th defective area in the clock appearance image of the clock product to be analyzed, is the two-dimensional coordinate of the th defective edge pixel point in the th defective area in the clock appearance image of the clock product to be analyzed, is the two-dimensional coordinate of the th defective edge pixel point in the th defective area in the clock appearance image of the clock product to be analyzed, is the two-dimensional coordinate of the th defective edge pixel point in the th defective area in the clock appearance image of the clock product to be analyzed, is the two-dimensional coordinate of the 1st defective edge pixel point in the th defective area in the clock appearance image of the clock product to be analyzed, is the appearance integrity index of the clock product to be analyzed, is the proportionality coefficient stored in the database, and takes the value of 4 in this implementation example, is pi, and takes the value of 3.14 in this implementation example, is the area of the th defective area in the clock appearance image of the clock product to be analyzed, , is the number of defective areas, , is the number of defective edge pixel points.

[0046] The edge recognition process uses Canny edge detection, which identifies prominent edge features in the appearance image and then extracts the defective edge pixel points in the appearance image. This includes grayscale processing (converting the image to a grayscale image), gradient calculation (using the Sobel operator to calculate the gradient magnitude and direction of the image to find strong edges), non-maximum suppression (locally comparing each pixel point and considering it an edge point only when its gradient magnitude is the largest), double-threshold processing (classifying pixel points as strong edges, weak edges, and non-edge points based on set high and low thresholds), and edge connection (tracking weak edge points and connecting weak edges connected to strong edge points to finally form complete edges).

[0047] The connectivity process uses depth-first search (used to traverse pixels in the image and identify connected regions, that is, starting from a defective edge pixel point, recursively checking whether adjacent pixels are connected until all defective edge pixel points are traversed).

[0048] In this implementation, algorithms such as Canny edge detection and depth-first search (DFS) can be used to achieve automatic detection of defects in the clock appearance image, which can save a lot of time and reduce human errors. Secondly, by performing connectivity processing on defective edge pixel points, connected defective regions can be identified, avoiding misjudgment and ensuring calculation accuracy. Then, the area of the defective region is obtained through summation analysis, and the perimeter is calculated in combination with the coordinates of the defective edge pixel points to obtain the appearance integrity, thus accurately reflecting the appearance integrity of the clock product. At the same time, by adjusting parameters such as the proportionality coefficient, the impact of defects on the appearance integrity index can be flexibly controlled according to actual needs, so as to adjust according to the quality standards of different products.

[0049] Specifically, the specific steps to obtain the assembly precision index of the clock product to be analyzed are as follows: perform regional segmentation processing on the three-dimensional coordinates of each voxel point of the clock product to be analyzed to obtain several key component regions of the clock product to be analyzed (such as: gears, springs, bearings); perform weighted average processing on the three-dimensional coordinates of each voxel point within each key component region of the clock product to be analyzed to obtain the three-dimensional coordinates of the centroid of each key component region of the clock product to be analyzed; perform comprehensive analysis on the three-dimensional coordinates of the centroid of each key component region of the clock product to be analyzed to obtain the horizontal relative angle (i.e., relative to the X-axis), vertical relative angle (i.e., relative to the Y-axis), and vertical relative angle (i.e., relative to the Z-axis) of each group of adjacent key component regions of the clock product to be analyzed, and perform comprehensive analysis in combination with the horizontal relative reference angle, vertical relative reference angle, and vertical relative reference angle of each group of adjacent key component regions stored in the database to obtain the assembly precision index of the clock product to be analyzed.

[0050] Among them, the regional segmentation processing is: perform preprocessing on the three-dimensional coordinates of each voxel point of the clock product to be analyzed (i.e., apply the Sobel operator in three-dimensional space to calculate the gradient and then perform edge detection), and use a clustering algorithm (such as: DBSCAN) to segment the preprocessed result.

[0051] And the specific formula for calculating the horizontal relative angle of each group of adjacent key component regions of the clock product to be analyzed is as follows: ; where is the horizontal relative angle of the th group of adjacent key component regions of the clock product to be analyzed, is the three-dimensional coordinates of the centroid of the th key component region of the clock product to be analyzed, is the three-dimensional coordinates of the centroid of the th key component region of the clock product to be analyzed, , is the number of groups of adjacent key component regions, , is the number of key component regions, and .

[0052] And the calculation logic of the vertical relative angle and vertical relative angle of each group of adjacent key component regions of the clock product to be analyzed is the same as that of the horizontal relative angle, and the calculation formulas are also the same.

[0053] The specific formula for calculating the assembly precision index of the clock product to be analyzed is as follows: ; where is the assembly precision index of the clock product to be analyzed, is the The horizontal relative angle of a group of adjacent key component areas is the horizontal relative reference angle of the group of adjacent key component areas stored in the database is the horizontal coefficient stored in the database is the vertical relative angle of the group of adjacent key component areas of the clock product to be analyzed is the vertical relative angle of the group of adjacent key component areas stored in the database is the vertical coefficient stored in the database is the vertical relative angle of the group of adjacent key component areas of the clock product to be analyzed is the vertical relative angle of the group of adjacent key component areas stored in the database is the vertical coefficient stored in the database , , is the number of groups of adjacent key component areas

[0054] It should be noted that , , The specific acquisition process of is as follows: Read the horizontal relative reference angle, vertical relative reference angle, and vertical relative reference angle of each group of adjacent key component areas stored in the database, perform mean analysis, perform normalization processing based on the mean analysis results, and perform summation analysis based on the normalization processing results to obtain the assembly accuracy sum value, and perform ratio analysis on the normalization processing results and the assembly accuracy sum value respectively, and use the ratio analysis results as the corresponding coefficients

[0055] In this implementation plan, the automatic evaluation of assembly accuracy is realized through region segmentation, centroid calculation, angle analysis, etc., thus avoiding the difficulty of manual inspection after complex component assembly, thereby improving efficiency and accuracy. Secondly, by calculating the centroid position and relative angle of each key component area, the position and relative relationship of the components in the three-dimensional space can be accurately grasped. In clock products with high-precision requirements, small position changes between components will affect the assembly quality, and accurate three-dimensional positioning can ensure assembly accuracy. Finally, by using the clustering algorithm to segment the component areas, independent key components can be effectively identified, avoiding the interference of complex backgrounds or overlapping areas, so as to ensure that each component can be correctly and independently analyzed

[0056] Specifically, as Figure 3As shown in the figure, the specific steps to obtain the functional reliability index of the clock product to be analyzed are as follows: Standardize the watertight pressure value, waterproof depth value, and bubble penetration rate value of the clock product to be analyzed (i.e., remove the unit); comprehensively analyze the standardized watertight pressure value, waterproof depth value, and bubble penetration rate value of the clock product to be analyzed to obtain the waterproof function index of the clock product to be analyzed; and comprehensively analyze the movement vibration frequency value, balance wheel amplitude value, lubricating oil viscosity value, lubricating oil layer thickness value, pointer rotation torque value, bearing clearance value, and pointer contact force value of the clock product to be analyzed to obtain the timekeeping accuracy index of the clock product to be analyzed; and comprehensively analyze the waterproof function index and timekeeping accuracy index of the clock product to be analyzed to obtain the functional reliability index of the clock product to be analyzed.

[0057] Among them, the specific formulas for calculating the waterproof function index and functional reliability index of the clock product to be analyzed are as follows: ; where is the waterproof function index of the clock product to be analyzed, is the standardized watertight pressure value of the clock product to be analyzed, is the pressure coefficient stored in the database, is the standardized waterproof depth value of the clock product to be analyzed, is the depth coefficient stored in the database, is the standardized bubble penetration rate value of the clock product to be analyzed, is the penetration coefficient stored in the database, , is the functional reliability index of the clock product to be analyzed, is the waterproof coefficient stored in the database, is the timekeeping accuracy index of the clock product to be analyzed, is the timekeeping coefficient stored in the database, , is the natural constant, and its value is 2.71 in this embodiment.

[0058] It should be noted that , , The specific acquisition process of is as follows: Read the standardized watertight pressure value, waterproof depth value, and bubble penetration rate value of the clock product to be analyzed, perform a summation analysis to obtain the airtight sum value, and perform a ratio analysis of the standardized watertight pressure value, waterproof depth value, and bubble penetration rate value of the clock product to be analyzed with the airtight sum value respectively, and use the ratio analysis result as the corresponding coefficient.

[0059] , The specific acquisition process is as follows: Read the waterproof function index and the timekeeping accuracy index of the clock product to be analyzed (it should be noted here that both the waterproof function index and the timekeeping accuracy index are dimensionless indices, so they can be directly calculated), perform a summation analysis to obtain the functional reliability sum value, and perform a ratio analysis of the waterproof function index and the timekeeping accuracy index of the clock product to be analyzed with the functional reliability sum value respectively, and use the ratio analysis results as the corresponding coefficients.

[0060] In this implementation plan, through standardization processing, the influence of different parameter dimensions on the calculation results is eliminated, ensuring that data can be compared and comprehensively analyzed on the same scale, so that different parameters can be reasonably integrated without unit interference, thereby improving the calculation accuracy. Secondly, through comprehensive analysis of the watertightness pressure value, waterproof depth value, and bubble penetration rate, the waterproof function index is obtained, so as to comprehensively evaluate the sealing performance of the clock underwater. And through comprehensive analysis of parameters such as the movement vibration frequency value, balance wheel amplitude value, lubricating oil viscosity value, and lubricating oil layer thickness value, the timekeeping accuracy index is obtained, so as to be able to quantify the accuracy of the clock's timekeeping, providing a more comprehensive accurate evaluation. Finally, through the analysis of the functional reliability index, a comprehensive evaluation index for product quality is provided, and an intuitive reliability value is provided for consumers.

[0061] Specifically, the specific steps to obtain the timekeeping accuracy index of the clock product to be analyzed are as follows: Obtain the movement vibration frequency reference value, balance wheel amplitude reference value, lubricating oil viscosity reference value, lubricating oil layer thickness reference value, pointer rotation torque reference value, bearing clearance reference value, and pointer contact force reference value of the clock product to be analyzed; comprehensively analyze the movement vibration frequency reference value, balance wheel amplitude reference value, lubricating oil viscosity reference value, lubricating oil layer thickness reference value, movement vibration frequency value, balance wheel amplitude value, lubricating oil viscosity value, and lubricating oil layer thickness value of the clock product to be analyzed to obtain the power transmission stability index of the clock product to be analyzed; and comprehensively analyze the pointer rotation torque reference value, bearing clearance reference value, pointer contact force reference value, pointer rotation torque value, bearing clearance value, and pointer contact force value of the clock product to be analyzed to obtain the pointer movement smoothness index of the clock product to be analyzed; and comprehensively analyze the power transmission stability index and the pointer movement smoothness index of the clock product to be analyzed to obtain the timekeeping accuracy index of the clock product to be analyzed.

[0062] Among them, the movement vibration frequency reference value, balance wheel amplitude reference value, lubricating oil viscosity reference value, lubricating oil layer thickness reference value, pointer rotation torque reference value, bearing clearance reference value, and pointer contact force reference value of the clock product to be analyzed can all be obtained from the clock design and manufacturing manual stored in the database.

[0063] The specific formulas for calculating the power transmission stability index and timekeeping accuracy index of the clock product to be analyzed are as follows: ; where is the power transmission stability index of the clock product to be analyzed, is the movement vibration frequency value of the clock product to be analyzed, is the reference value of the movement vibration frequency of the clock product to be analyzed, is the vibration coefficient stored in the database, is the balance wheel amplitude value of the clock product to be analyzed, is the reference value of the balance wheel amplitude of the clock product to be analyzed, is the amplitude coefficient stored in the database, is the lubricating oil viscosity value of the clock product to be analyzed, is the reference value of the lubricating oil viscosity of the clock product to be analyzed, is the viscosity coefficient stored in the database, is the lubricating oil layer thickness value of the clock product to be analyzed, is the reference value of the lubricating oil layer thickness of the clock product to be analyzed, is the thickness coefficient stored in the database, , is the pointer movement smoothness index of the clock product to be analyzed, is the pointer driving torque value of the clock product to be analyzed, is the reference value of the pointer driving torque of the clock product to be analyzed, is the torque coefficient stored in the database, is the bearing clearance value of the clock product to be analyzed, is the reference value of the bearing clearance of the clock product to be analyzed, is the clearance coefficient stored in the database, is the pointer contact force value of the clock product to be analyzed, is the reference value of the pointer contact force of the clock product to be analyzed, is the contact coefficient stored in the database, , is the timekeeping accuracy index of the clock product to be analyzed, is the power coefficient stored in the database, is the pointer smoothness coefficient stored in the database, , is the natural constant, and its value is 2.71 in this embodiment.

[0064] 、 、 、 The specific acquisition process is as follows: Read the reference values of the movement vibration frequency, balance wheel amplitude, lubricating oil viscosity, and lubricating oil layer thickness of the clock product to be analyzed, and perform normalization processing. Based on the results of the normalization processing, perform summation analysis to obtain the power transmission sum value. Perform ratio analysis on the results of the normalization processing and the power transmission sum value respectively, and use the ratio analysis results as the corresponding coefficients.

[0065] 、 、 The specific acquisition process is as follows: Read the reference values of the pointer driving torque, bearing clearance, and pointer contact force of the clock product to be analyzed and perform normalization processing. Based on the results of the normalization processing, perform summation analysis to obtain the smooth movement sum value of the pointer. Perform ratio analysis on the results of the normalization processing and the smooth movement sum value of the pointer respectively, and use the ratio analysis results as the corresponding coefficients.

[0066] 、 The specific acquisition process is as follows: Read the power transmission stability index and the pointer movement smoothness index of the clock product to be analyzed (it should be noted here that both the power transmission stability index and the pointer movement smoothness index are dimensionless indices, so they can be directly calculated), perform summation analysis to obtain the accurate timekeeping sum value, and perform ratio analysis on the power transmission stability index and the pointer movement smoothness index of the clock product to be analyzed and the accurate timekeeping sum value respectively, and use the ratio analysis results as the corresponding coefficients.

[0067] The specific embodiments for calculating the accurate timekeeping index of the clock product to be analyzed are as follows. The following data are available:

[0068] The movement vibration frequency value of the clock product to be analyzed is (unit: Hz): 4.20.

[0069] The balance wheel amplitude value of the clock product to be analyzed is (unit: degree): 312.00.

[0070] The lubricating oil viscosity value of the clock product to be analyzed is (unit: cP): 250.00.

[0071] The lubricating oil layer thickness value of the clock product to be analyzed is (unit: μm): 10.23.

[0072] The pointer driving torque value of the clock product to be analyzed is (unit: mN·m): 0.50.

[0073] The bearing clearance value of the clock product to be analyzed is (unit: mm): 0.03.

[0074] The pointer contact force value of the clock product to be analyzed is (unit: N): 0.04.

[0075] The reference value of the movement vibration frequency of the clock product to be analyzed is (unit: Hz): 4.00.

[0076] The reference value of the balance wheel amplitude of the clock product to be analyzed is (unit: degree): 280.00.

[0077] The reference value of the lubricating oil viscosity of the clock product to be analyzed is (unit: cP): 220.00.

[0078] The reference value of the lubricating oil layer thickness of the clock product to be analyzed is (unit: μm): 8.00.

[0079] The reference value of the pointer driving torque of the clock product to be analyzed is (unit: mN·m): 0.30.

[0080] The reference value of the bearing clearance of the clock product to be analyzed is (unit: mm): 0.02.

[0081] The reference value of the pointer contact force of the clock product to be analyzed is (unit: N): 0.03.

[0082] The vibration coefficient stored in the database is approximately: 0.38.

[0083] The amplitude coefficient stored in the database is approximately: 0.26.

[0084] The viscosity coefficient stored in the database is approximately: 0.23.

[0085] The thickness coefficient stored in the database is approximately: 0.13.

[0086] The torque coefficient stored in the database is approximately: 0.42.

[0087] The clearance coefficient stored in the database is approximately: 0.36.

[0088] The contact coefficient stored in the database is approximately: 0.22.

[0089] The power coefficient stored in the database is approximately: 0.49.

[0090] The pointer smoothness coefficient stored in the database is approximately: 0.51.

[0091] Substitute the above data into the formula for the power transmission stability index of the clock product to be analyzed for calculation, and obtain:

[0092] Power transmission stability index of the clock product to be analyzed = ln(1 + (1 / ((0.38 * √|1 - (4.20 / 4.00)| + 0.26 * |1 - (312.00 / 280.00)| + 0.23 * |1 - (250.00 / 220.00)| + 0.13 * |1 - (10.23 / 8.00)|)))) ≈ 1.87.

[0093] Pointer movement smoothness index of the clock product to be analyzed = ((1 / ((0.42 * |1 - (0.50 / 0.30)| + 0.36 * |1 - (0.03 / 0.02)| + 0.22 * |1 - (0.04 / 0.03)|)))) ≈ 1.88.

[0094] Timekeeping accuracy index of the clock product to be analyzed = arctan((0.49 * 1.87 + 0.51 * 1.88) / (2.71 - 1)) = 1.08.

[0095] In this implementation plan, by separately analyzing multiple key parameters, a comprehensive evaluation of the timekeeping accuracy of the clock is ensured. Different factors have different effects on timekeeping. It is difficult to fully capture their effects on overall accuracy by analyzing each factor alone, while comprehensive analysis can better reflect the interactive effects of various factors. Secondly, by comprehensively analyzing the movement vibration frequency value of the movement and the reference value, and the balance wheel amplitude value and the reference value, the stability during the power transmission process can be effectively evaluated. The viscosity and layer thickness of the lubricating oil also have important effects on the friction, wear, and movement smoothness of mechanical components. The analysis of these factors helps to determine the reliability of power transmission, and by analyzing the actual values and reference values of the pointer driving torque, bearing clearance, and pointer contact force, the smoothness of pointer movement can be deeply evaluated, thereby improving the timekeeping accuracy and avoiding errors caused by unsteady pointer movement.

[0096] Specifically, the specific steps for taking corresponding assembly repair measures based on judgment analysis are as follows: If the assembly quality index of the clock product to be analyzed is lower than or equal to the preset assembly quality threshold, mark the clock product to be analyzed as a non - qualified product and take repair measures (i.e., rework, repair errors or omissions during the assembly process, including disassembling and reassembling components, etc.; recalibrate the assembly accuracy, according to the precision requirements of the product, readjust the accuracy of the movement to ensure the accuracy of clock timekeeping and avoid time errors caused by assembly errors; lubricating oil adjustment: ensure the normal operation of the lubrication system of the mechanical part, check and supplement the lubricating oil to prevent component wear or jamming); if the assembly quality index of the clock product to be analyzed is higher than the preset assembly quality threshold, mark the clock product to be analyzed as a qualified product and carry out product packaging.

[0097] In this implementation plan, by setting a clear assembly quality threshold and taking corresponding repair measures according to actual conditions, it is ensured that only products that meet quality standards enter the market, which helps to significantly reduce the circulation risk of unqualified products, thereby ensuring that consumers obtain high-quality watches. By taking repair measures such as rework, precision calibration and lubricant adjustment for unqualified products, entire batches of scrap due to minor defects are avoided, so that originally unqualified products can meet the standards again, reduce the scrap rate, and thus reduce production costs and waste of resources. By recalibrating assembly accuracy and adjusting lubricants and other measures, the product's timing accuracy and mechanical properties are ensured, and the long-term stability of the watch is enhanced.

[0098] In summary, this application has at least the following effects:

[0099] By acquiring the internal 3D point cloud data of the watch after assembly and analyzing it to obtain the assembly precision index, it is possible to accurately evaluate whether the internal structure of the watch after assembly meets the design standards, and then detect tiny errors after assembly, thereby ensuring the precision and long-term stability of the watch product.

[0100] By comprehensively analyzing the appearance integrity index, assembly precision index and functional reliability index, a comprehensive quality assessment of watch products is conducted. The functional reliability index analyzed by the second data analysis module ensures that the product not only meets the standards in appearance and assembly, but also maintains long-term stability and reliability in function. This allows manufacturers to fully understand the assembly quality of the product, thereby reducing after-sales service and repair costs caused by poor product functions, and then improving the overall market competitiveness of the product.

[0101] By comparing and analyzing the assembly quality index of watch products with the preset quality threshold, if the product does not meet the quality standard, it will be automatically marked as an unqualified product, thereby preventing unqualified products from entering the market and repairing the quality of unqualified watch products, thereby improving the final qualification rate of the product.

[0102] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0103] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A watch product assembly quality data analysis system, characterized in that: include: Data acquisition module, first data analysis module, second data analysis module, comprehensive analysis module, assembly repair management module; The data acquisition module is used to acquire the appearance image data of the watch and the internal three-dimensional point cloud data of the watch after the watch product to be analyzed is assembled, and perform preprocessing; The first data analysis module is used to analyze the pre-processed clock appearance image data and clock internal three-dimensional point cloud data of the clock product to be analyzed, respectively, to obtain the appearance integrity index and assembly precision index of the clock product to be analyzed; The second data analysis module is used to simultaneously obtain the functional test data of the watch product to be analyzed, the functional test data including the water tightness pressure value, the water resistance depth value, the bubble penetration rate value, the movement vibration frequency value, the balance wheel amplitude value, the lubricating oil viscosity value, the lubricating oil layer thickness value, the pointer rotation torque value, the bearing clearance value, and the pointer contact force value, and perform data analysis to obtain the functional reliability index of the watch product to be analyzed, and the specific steps are as follows: Standardize the water tightness pressure value, water resistance depth value, and bubble penetration rate value of the timepiece products to be analyzed; Comprehensively analyze the water tightness pressure value, waterproof depth value, and bubble penetration rate value of the timepiece product to be analyzed after the standardized processing to obtain the waterproof function index of the timepiece product to be analyzed; A comprehensive analysis is performed on the movement vibration frequency value, balance wheel amplitude value, lubricating oil viscosity value, lubricating oil layer thickness value, pointer rotation torque value, bearing clearance value, and pointer contact force value of the clock product to be analyzed, and the travel accuracy index of the clock product to be analyzed is obtained. The specific steps are as follows: Obtain reference values ​​of movement vibration frequency, balance wheel amplitude, lubricating oil viscosity, lubricating oil layer thickness, pointer rotation torque, bearing clearance, and pointer contact force of the timepiece product to be analyzed; Comprehensively analyze the reference value of the movement vibration frequency, the reference value of the balance wheel amplitude, the reference value of the lubricating oil viscosity, the reference value of the lubricating oil layer thickness, the movement vibration frequency value, the balance wheel amplitude value, the lubricating oil viscosity value, and the lubricating oil layer thickness value of the timepiece product to be analyzed, and obtain the power transmission stability index of the timepiece product to be analyzed; Comprehensively analyze the pointer rotation torque reference value, bearing clearance reference value, pointer contact force reference value, pointer rotation torque value, bearing clearance value, and pointer contact force value of the clock product to be analyzed to obtain the pointer movement stability index of the clock product to be analyzed; And conduct a comprehensive analysis on the power transmission stability index and pointer movement stability index of the clock and watch products to be analyzed, and obtain the travel accuracy index of the clock and watch products to be analyzed; The specific formulas for calculating the power transmission stability index, pointer movement stability index, and travel time accuracy index of the timepiece product to be analyzed are as follows: ； in, , , , , , , , , They are, in order, the power transmission stability index of the timepiece product to be analyzed, the movement vibration frequency value, the movement vibration frequency reference value, the balance wheel amplitude value, the balance wheel amplitude reference value, the lubricating oil viscosity value, the lubricating oil viscosity reference value, the lubricating oil layer thickness value, and the lubricating oil layer thickness reference value. , , , They are the vibration coefficient, amplitude coefficient, viscosity coefficient, and thickness coefficient stored in the database. , , , , , , , They are, in order, the pointer movement smoothness index, pointer rotation torque value, pointer rotation torque reference value, bearing clearance value, bearing clearance reference value, pointer contact force value, and pointer contact force reference value of the watch product to be analyzed. , , They are the torque coefficient, clearance coefficient, and contact coefficient stored in the database, respectively. , The time accuracy index of the watch product to be analyzed. , They are the dynamic coefficient and pointer stability coefficient stored in the database, , is a natural constant; And conduct a comprehensive analysis on the waterproof function index and the timekeeping accuracy index of the timepiece product to be analyzed to obtain the functional reliability index of the timepiece product to be analyzed; The comprehensive analysis module is used to comprehensively analyze the appearance integrity index, assembly precision index, and functional reliability index of the timepiece product to be analyzed, and obtain the assembly quality index of the timepiece product to be analyzed. The specific formula is as follows: ； in, , , , They are the assembly quality index, appearance integrity index, assembly precision index, and functional reliability index of the watch product to be analyzed. , , They are the appearance coefficient, precision coefficient, and function coefficient stored in the database. , is a natural constant; The assembly repair management module is used to perform judgment analysis on the assembly quality index of the timepiece product to be analyzed and a preset assembly quality threshold, and take corresponding assembly repair measures based on the judgment analysis.

2. The watch product assembly quality data analysis system according to claim 1, characterized in that: The clock appearance image data specifically includes the pixel value and two-dimensional coordinates of each pixel point in the clock appearance image, and the clock internal three-dimensional point cloud data specifically includes the three-dimensional coordinates of each voxel point.

3. The watch product assembly quality data analysis system according to claim 2, characterized in that: The specific process of obtaining the appearance integrity index of the watch product to be analyzed is as follows: Perform edge recognition processing on the pixel value of each pixel point in the watch appearance image of the watch product to be analyzed, and obtain a number of defect edge pixel points in the watch appearance image of the watch product to be analyzed; Connecting each defect edge pixel point in the watch appearance image of the watch product to be analyzed to obtain a plurality of defect regions in the watch appearance image of the watch product to be analyzed; and performing sum analysis on a number of pixel points in each defect region and defect edge pixel points in the watch appearance image of the watch product to be analyzed, so as to obtain the area of ​​each defect region in the watch appearance image of the watch product to be analyzed; A comprehensive analysis is performed on the two-dimensional coordinates of each defect edge pixel point of each defect area in the watch appearance image of the watch product to be analyzed to obtain the perimeter of each defect area in the watch appearance image of the watch product to be analyzed, and a comprehensive analysis is performed in combination with the area to obtain the appearance integrity index of the watch product to be analyzed.

4. The watch product assembly quality data analysis system according to claim 2, characterized in that: The specific steps to obtain the assembly precision index of the watch product to be analyzed are as follows: Performing region segmentation processing on the three-dimensional coordinates of each voxel point of the timepiece product to be analyzed, and obtaining several key component regions of the timepiece product to be analyzed; Performing weighted average processing on the three-dimensional coordinates of each voxel point in each key component area of ​​the timepiece product to be analyzed, to obtain the three-dimensional coordinates of the center of mass of each key component area of ​​the timepiece product to be analyzed; A comprehensive analysis is performed on the three-dimensional coordinates of the center of mass of each key component area of ​​the watch product to be analyzed to obtain the horizontal relative angle, vertical relative angle, and vertical relative angle of each group of adjacent key component areas of the watch product to be analyzed, and a comprehensive analysis is performed in combination with the horizontal relative reference angle, vertical relative reference angle, and vertical relative reference angle of each group of adjacent key component areas stored in the database to obtain the assembly precision index of the watch product to be analyzed.

5. The watch product assembly quality data analysis system according to claim 4, characterized in that: The specific formula for calculating the assembly precision index of the watch product to be analyzed is as follows: ； in, The assembly precision index of the watch product to be analyzed. The first The horizontal relative angle of the adjacent key component areas of a group, The first The horizontal relative reference angle of the adjacent key component areas of a group, is the horizontal factor stored in the database, The first The vertical relative angle of adjacent key component areas of a group, The first The vertical relative angle of adjacent key component areas of a group, is the vertical factor stored in the database, The first The vertical relative angles of adjacent key component areas of a group, The first The vertical relative angles of adjacent key component areas of a group, is the vertical coefficient stored in the database, , , is the number of adjacent key component area groups.

6. The watch product assembly quality data analysis system according to claim 1, characterized in that: The specific steps for taking corresponding assembly repair measures based on judgment analysis are as follows: If the assembly quality index of the timepiece product to be analyzed is lower than or equal to the preset assembly quality threshold, the timepiece product to be analyzed is marked as an unqualified product and repair measures are taken; If the assembly quality index of the watch product to be analyzed is higher than a preset assembly quality threshold, the watch product to be analyzed is marked as a qualified product.

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