Marine accessory quality control method and control system

Abstract

The invention discloses a marine accessory quality control method and system, and relates to the technical field of quality control, and the method comprises the steps: firstly, testing and analyzing the inclusiveness of different performance tests on accessories with different defects, and constructing a performance-defect inclusive query table; in actual multi-level quality inspection of the accessories, targeted matching of different performance tests is carried out on the accessories with the defects, intelligent and flexible management and control of quality inspection of the marine accessories are achieved, the influence boundary of the defects on the performance is defined, the acceptable defects are made to exert the testing value, the unacceptable defects can be accurately recognized, and the quality inspection efficiency of the marine accessories is improved. Therefore, reasonable utilization and planning of acceptable defects are realized, cost of test samples is reduced, targeted matching of defective accessory performance tests is realized, waste of test resources is reduced on the premise of ensuring effectiveness and accuracy of the tests, and cost of subsequent secondary processing is reduced at the same time.

Description

Technical Field

[0001] This invention relates to the field of quality control technology, specifically to a method and system for quality control of marine accessories. Background Technology

[0002] The quality of marine accessories is directly related to the overall performance of a ship. When conducting multi-level quality inspections of marine accessories, optimizing the quality inspection and testing process can reduce accessory wear and tear and lower the operating costs of quality control while meeting quality inspection requirements.

[0003] Existing technologies, such as the invention patent application CN119228220A, which discloses an intelligent control method and system for building material product quality inspection, relate to the field of product quality inspection. This involves constructing a virtual production workshop for the building materials to be inspected, using the interactive fusion of physical information and data to collect production information from the physical production workshop, and interacting in real time with the production information from the virtual production workshop to determine the production process flow of the building materials to be inspected. Production information parameters for each sub-process in the qualified production process are collected. Using a simulation model of the building materials to be inspected in the virtual production workshop as the inspection object, the j-th production information parameter value of the j-th sub-process in the (k+1)-th production process of the inspection object is obtained. The status level of the parameter value is calculated and determined. Based on the status level of the obtained production information parameter value, the risk factor of the j-th sub-process in the (k+1)-th production process is determined, and the pass rate risk characterization value of the building materials to be inspected in the (k+1)-th production process is calculated.

[0004] Existing technologies, such as the invention patent application CN118710575A, disclose an artificial intelligence-based method and system for industrial product quality inspection, relating to the field of electronic digital data processing. This method involves collecting industrial product samples from all types of industrial products within a set of qualified industrial product categories, acquiring images, training a YOLOv3-SPP network model, conducting environmental adaptability tests on each sample in the qualified sample image matrix, and then using the YOLOv3-SPP network model to identify and judge the tested samples to obtain the final inspection result. This invention, by collecting a set of qualified industrial product samples, training the YOLOv3-SPP network model using extracted feature data, and then conducting environmental adaptability tests on the samples, can efficiently and comprehensively inspect various characteristics of industrial products, saving manpower. Furthermore, it sets up multiple environmental adaptability tests to comprehensively test the environmental adaptability of industrial products, ultimately determining whether the industrial products are qualified.

[0005] The above plan discloses the quality control process during the production process and quality inspection of the product. However, for marine accessories, the quality inspection and control need to be combined with the special characteristics of marine accessories, such as corrosion resistance, pressure resistance and wear resistance. Therefore, it is necessary to formulate a multi-level quality inspection, which not only needs to detect defects in marine accessories, but also needs to test various properties to ensure the comprehensiveness and accuracy of accessory quality control.

[0006] However, the quality control in the above scheme has at least the following shortcomings: 1. The core of performance testing is to verify whether the product meets the design and safety requirements. This needs to be judged in conjunction with the nature of the defect, that is, whether it affects the core performance. Therefore, before conducting performance testing, products with different defects in different performance tests should be tested to analyze the impact of different defects in different performance tests, that is, the tolerance of different performance tests for different defects. This would allow for the reasonable use of defective accessories during subsequent actual performance testing. However, the above scheme lacks the ability to reasonably use defective accessories when conducting performance testing on products. It cannot clarify the boundary of the impact of defects on performance, resulting in the understanding of defects remaining at the qualitative level of "whether there is a defect or not". It cannot make "acceptable defects" play a testing role, nor can it accurately identify "unacceptable defects". Therefore, it lacks a reasonable plan for the use of "acceptable defects" and increases the cost of test samples.

[0007] 2. Performance testing includes both non-destructive and destructive testing. For non-destructive performance testing, attachments with single defects are preferred. This allows testing to be completed without damaging the attachments, avoiding direct scrapping, and preserving the reusability of the attachments after secondary processing. For destructive performance testing, attachments with complex defects are preferred. After testing, the attachments are completely destroyed and cannot be reused, maximizing the testing value of the attachments. However, the above approach lacks the ability to select attachments with different defects for different performance tests, failing to achieve targeted matching for performance testing of defective attachments. This leads to a waste of testing resources and increases the cost of subsequent secondary processing. Summary of the Invention

[0008] To address the aforementioned technical shortcomings, the present invention aims to provide a method and system for quality control of marine accessories.

[0009] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: In a first aspect, the present invention provides a method for quality control of marine accessories, comprising the following steps: S1, selecting a number of defect-free accessories and a number of defective accessories, and according to the nature of the defects, dividing the defective accessories into accessories of the surface defect group and accessories of the structural defect group, and dividing each performance test into non-destructive performance test and destructive performance test according to the destructive condition, and using each defect-free accessory, accessory of the surface defect group and accessory of the structural defect group to perform non-destructive performance test and destructive performance test respectively, and collecting test data.

[0010] S2. Using the test data, analyze the tolerance of each non-destructive performance test and each destructive performance test to surface defects and structural defects of the accessories, and construct a performance-defect tolerance lookup table.

[0011] S3. When performing hierarchical inspection on the quality of attachments, obtain the defect data of each attachment that has defects in the hierarchical inspection, and use the performance-defect inclusive lookup table to select each attachment that can be used for performance testing from the attachments with defects.

[0012] S4. Process any defective attachments that were not selected.

[0013] Secondly, the present invention provides a quality control system for marine accessories, comprising: a testing module, used to select a number of defect-free accessories and a number of defective accessories, and according to the nature of the defects, divide the defective accessories into accessories of a surface defect group and accessories of a structural defect group, and at the same time divide each performance test into non-destructive performance tests and destructive performance tests according to the destructive conditions, and use each defect-free accessory, each accessory of the surface defect group and each accessory of the structural defect group to perform non-destructive performance tests and destructive performance tests respectively, and collect test data.

[0014] The analysis module is used to analyze the tolerance of each non-destructive performance test and each destructive performance test to surface defects and structural defects of the accessories using test data, and to construct a performance-defect tolerance lookup table.

[0015] The allocation module is used to obtain the defect data of each attachment that has defects in the hierarchical inspection when performing hierarchical inspection on the attachment quality, and to select the attachments that can be used for performance testing from the attachments with defects using the performance-defect inclusive lookup table.

[0016] The processing module is used to process the defective attachments that were not selected.

[0017] The beneficial effects of this invention are as follows: 1. This invention provides a method and system for quality control of marine accessories. First, it tests and analyzes the inclusiveness of different performance tests for accessories with different defects, and constructs a performance-defect inclusiveness lookup table. In the actual multi-level quality inspection of accessories, it performs targeted matching of different performance tests on accessories with defects, realizing intelligent and flexible control of marine accessory quality inspection, clarifying the impact boundary of defects on performance, allowing "acceptable defects" to play a testing value, and accurately identifying "unacceptable defects", thereby realizing the rational utilization planning of "acceptable defects", reducing the cost of test samples, and realizing targeted matching of performance tests for defective accessories. Thus, while ensuring the effectiveness and accuracy of testing, it reduces the waste of testing resources and also reduces the cost of subsequent secondary processing. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the implementation steps of the method of the present invention.

[0020] Figure 2 This is a schematic diagram of the system structure connection of the present invention. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] See Figure 1 As shown, a quality control method for marine accessories includes the following steps: S1. Select a number of defect-free accessories and a number of defective accessories. Based on the nature of the defects, divide the defective accessories into accessories of the surface defect group and accessories of the structural defect group. At the same time, divide the performance tests into non-destructive performance tests and destructive performance tests based on the destructive conditions. Using the defect-free accessories, accessories of the surface defect group, and accessories of the structural defect group, conduct non-destructive performance tests and destructive performance tests respectively, and collect test data.

[0023] It should be noted that the nature of defects includes surface defects and structural defects; surface defects refer to defects that exist only on the surface of the product, and surface defect data includes: surface scratch depth and surface indentation depth, etc.; structural defects refer to defects that involve the internal structure of the product, the material itself, or the key load-bearing structure; structural defect data includes: internal crack area and internal hole length, etc.

[0024] Surface defect data can be detected by machine vision, while structural defect data can be detected by ultrasonic testing and X-ray flaw detection. The specific detection methods are publicly available and can be found on the Internet, so they will not be elaborated here.

[0025] In the above, "destruction condition" refers to whether the marine accessories are damaged. Undamaged accessories are subject to non-destructive performance testing, while damaged accessories are subject to destructive performance testing. Performance tests differ for different types of accessories.

[0026] Non-destructive performance testing includes vibration testing and pressure testing. Vibration testing, in particular, uses a vibration table to simulate the vibration environment of a ship during navigation, detecting the stability of accessories under vibration. This is suitable for precision instrument connectors and electrical accessories.

[0027] Pressure test: Apply a liquid (water) or gas (nitrogen) at its rated pressure to the sealed accessory, maintain the pressure for a period of time, and observe for leakage or deformation. Applicable to sealing accessories, such as valves and joints, and pressure vessels, such as oil storage tank accessories.

[0028] Destructive performance testing includes fatigue testing and burst testing; fatigue testing: alternating loads (simulating wave impact and vibration) are applied to the accessory until fatigue fracture occurs, and the number of cycles (fatigue life) is recorded. This is applicable to accessories such as shafts, gears, and bolts that are subjected to alternating loads.

[0029] Burst test: A sealed accessory (such as a high-pressure pipeline or pressure vessel) is continuously pressurized until it ruptures, and the burst pressure is measured. Applicable accessories: High-pressure pipeline accessories, such as fuel injection pipes and hydraulic lines.

[0030] In a specific embodiment, the specific process of the non-destructive performance test is as follows: S101, extract the surface defect data of each accessory of the surface defect group, and then classify them according to the defect level, dividing each accessory of the surface defect group into accessories of each surface defect level.

[0031] In the above example, surface defect data for each attachment in a surface defect group is extracted from the surface defect data of each attachment with defects stored in the database. The above example is merely illustrative and not the only possible explanation.

[0032] In this process, the testing personnel set the reference surface defect data range corresponding to each surface defect level according to the quality testing requirements. No specific numerical limit is imposed here. The surface defect data of each accessory in the surface defect group is compared with the reference surface defect data range corresponding to each surface defect level. When the surface defect data of a certain accessory is within the reference surface defect data range corresponding to a certain surface defect level, then the surface defect level is the surface defect level of that accessory. In this way, the accessories of the surface defect group are divided into accessories of each surface defect level.

[0033] S102. Select a predetermined number of attachments from each surface defect level as a type of test attachment for each surface defect level in each non-destructive performance test. At the same time, select a predetermined number of attachments from a number of defect-free attachments as a type of appearance comparison attachment for each non-destructive performance test.

[0034] The preset quantity is set by the tester based on experience and testing needs, and no specific numerical limit is imposed here.

[0035] S103. Conduct corresponding non-destructive performance tests on each type of test attachment and each type of appearance control attachment for each surface defect level in each non-destructive performance test. After the test results, collect the performance index data of each type of test attachment and each type of appearance control attachment for each surface defect level in each non-destructive performance test.

[0036] S104. Conduct non-destructive performance tests on each accessory of the structural defect group according to S101-S104, and collect the performance index data of each type of test accessory for each structural defect level and the performance index data of each type of structural reference accessory in each non-destructive performance test after the test.

[0037] It should be noted that the performance index data includes newly added defect data, mechanical property data, and functional characteristic data. Among them, newly added defect data includes newly added surface defect data and structural defect data. The mechanical property data are different for different accessory types and need to be collected in a differentiated manner according to the accessory type. For example, the mechanical property data of wear-resistant accessories (such as bearings and gears) includes Brinell hardness and residual stress, which can be collected using a Brinell hardness tester and X-ray diffraction.

[0038] Functional characteristic data: The functional characteristic data differs for different accessory types and needs to be collected differently according to the accessory type. For example, the functional characteristic data of sealing accessories (such as valves, flanges, and seals) includes leakage and sealing surface contact pressure, which can be collected using flow meters and pressure sensors. The above examples are for illustrative purposes only and are not the only limitations.

[0039] In another specific embodiment, the specific process of the destructive performance test is as follows: S111, a preset number of attachments are extracted from each surface defect level as the second type of test attachments for each surface defect level in each destructive performance test, and a preset number of attachments are extracted from a number of defect-free attachments as the second type of appearance comparison attachments in each destructive performance test.

[0040] S112. Conduct corresponding destructive performance tests on each type II test attachment and each type II appearance control attachment for each surface defect level in each destructive performance test. After the test results, collect the performance index data of each type II test attachment and each type II appearance control attachment for each surface defect level in each destructive performance test.

[0041] S113. Select a predetermined number of attachments from each structural defect level as Class II test attachments for each structural defect level in each destructive performance test. At the same time, select a predetermined number of attachments from a number of defect-free attachments as Class II structural control attachments for each destructive performance test. Then, conduct the corresponding destructive performance tests. After the test results, collect the performance index data of each Class II test attachment and the performance index data of each Class II structural control attachment for each structural defect level in each destructive performance test.

[0042] All data collected after the non-destructive performance test and the destructive performance test shall be used as test data.

[0043] Specifically, the performance index data of each type I test attachment for each surface defect level in each non-destructive performance test, the performance index data of each type I appearance comparison attachment, the performance index data of each type I test attachment for each structural defect level, the performance index data of each type I structural comparison attachment, the performance index data of each type II test attachment for each surface defect level in each destructive performance test, the performance index data of each type II appearance comparison attachment, the performance index data of each type II test attachment for each structural defect level, and the performance index data of each type II structural comparison attachment are used as test data.

[0044] S2. Using the test data, analyze the tolerance of each non-destructive performance test and each destructive performance test to surface defects and structural defects of the accessories, and construct a performance-defect tolerance lookup table.

[0045] In a specific embodiment, the specific process of S2 is as follows: S201, extract the performance index data of each type of test attachment and the performance index data of each type of appearance control attachment for each surface defect level in each non-destructive performance test from the test data, calculate the deviation rate of the performance index data for each surface defect level in each non-destructive performance test, and compare it with the deviation rate interval corresponding to each preset tolerance to obtain the tolerance of each non-destructive performance test for each surface defect level, wherein the tolerance includes high tolerance, medium tolerance and low tolerance.

[0046] It should be noted that the average performance index data of each type of test accessory and the performance index data of each type of appearance control accessory for each surface defect level in each non-destructive performance test are calculated separately to obtain the average performance index data and control average performance index data for each surface defect level in each non-destructive performance test. The absolute value of the difference between the average performance index data and the control average performance index data is divided by the control average performance index data to obtain the deviation rate. The deviation rate of the performance index data for each surface defect level in each non-destructive performance test is calculated in this way.

[0047] The control personnel set the deviation rate range corresponding to each tolerance level based on control needs and experience. For example, the deviation rate range corresponding to high tolerance is [0, 3%], the deviation rate range corresponding to medium tolerance is (3%, 10%), and the deviation rate range corresponding to low tolerance is (10%, +∞). The examples are for illustrative purposes only and are not the only limitations.

[0048] S202. Based on the analysis method of the tolerance of each non-destructive performance test to each surface defect level, analyze and obtain the tolerance of each non-destructive performance test to each structural defect level, the tolerance of each destructive performance test to each surface defect level, and the tolerance of each structural defect level. Construct a performance-defect tolerance lookup table based on the tolerance of each non-destructive performance test to each surface defect level, the tolerance of each structural defect level, the tolerance of each destructive performance test to each surface defect level, and the tolerance of each structural defect level.

[0049] S3. When performing hierarchical inspection on the quality of attachments, obtain the defect data of each attachment that has defects in the hierarchical inspection, and use the performance-defect inclusive lookup table to select each attachment that can be used for performance testing from the attachments with defects.

[0050] In a specific embodiment, the specific process of S3 is as follows: S301, according to the defect data, the defect data of each attachment with defects in the hierarchical detection are classified into each surface defect attachment, each structural defect attachment and each complex defect attachment.

[0051] S302. Obtain the surface defect level, structural defect level, and complex defect level of each surface defect attachment, each structural defect attachment, and each complex defect attachment. Extract the tolerance of each surface defect attachment and each structural defect attachment in each non-destructive performance test and each destructive performance test from the performance-defect tolerance lookup table. Analyze the tolerance of each complex defect attachment in each non-destructive performance test and each destructive performance test using the performance-defect tolerance lookup table.

[0052] Preferably, the surface defect level and structural defect level of each surface defect attachment, each structural defect attachment, and each complex defect attachment are obtained by dividing each attachment of the surface defect group into attachments of each surface defect level. The attachment with the highest level among the surface defect level and structural defect level of each complex defect attachment is taken as the complex defect level.

[0053] The analysis process of the tolerance of each complex defect accessory in each non-destructive performance test and each destructive performance test is as follows: S321, Based on the defect data of each complex defect accessory, obtain the surface defect level and structural defect level of each complex defect accessory, and obtain the tolerance of the surface defect level and structural defect level of each complex defect accessory in each non-destructive performance test and each destructive performance test from the performance-defect tolerance lookup table.

[0054] S322. Using the tolerance setting rules, confirm the tolerance of each non-destructive performance test for each complex defect accessory by considering the tolerance of the surface defect level and structural defect level for each complex defect accessory in each non-destructive performance test.

[0055] The above-mentioned tolerance setting rule is as follows: S322-1. When a non-destructive performance test has a tolerance of medium or low for the surface defect level and structural defect level of a complex defect accessory, it indicates that the tolerance of the non-destructive performance test for the complex defect accessory is low.

[0056] S322-2. When a non-destructive performance test has a high tolerance and a medium tolerance for the surface defect level and structural defect level of a complex defect accessory, it indicates that the tolerance of the non-destructive performance test for the complex defect accessory is medium tolerance.

[0057] S322-3. When a non-destructive performance test shows high tolerance for both the surface defect level and the structural defect level of a complex defect accessory, it indicates that the non-destructive performance test has high tolerance for the complex defect accessory; analyze the tolerance of each non-destructive performance test for each complex defect accessory in this way.

[0058] S323. Based on the analysis method of the tolerance of each non-destructive performance test to each complex defect accessory, the tolerance of each destructive performance test to each complex defect accessory is analyzed and obtained.

[0059] S303. Based on the tolerance of each surface defect attachment, each structural defect attachment, and each complex defect attachment in each non-destructive performance test and each destructive performance test, select the attachments that can be tested for performance, and confirm each attachment in each non-destructive performance test and each destructive performance test.

[0060] Preferably, the specific process of S303 is as follows: S331, based on the tolerance of each surface defect accessory, each structural defect accessory and each complex defect accessory in each non-destructive performance test, select each candidate surface defect accessory, each candidate structural defect accessory and each candidate complex defect accessory in each non-destructive performance test and each destructive performance test, and classify them into each single surface defect accessory, each common surface defect accessory, each single structural defect accessory, each common structural defect accessory, each single complex defect accessory and each complex structural defect accessory in each non-destructive performance test and each destructive performance test.

[0061] Among them, high-tolerance surface defect attachments, structural defect attachments, and complex defect attachments are selected as candidate surface defect attachments, candidate structural defect attachments, and candidate complex defect attachments for each non-destructive performance test. Similarly, candidate surface defect attachments, candidate structural defect attachments, and candidate complex defect attachments for each destructive performance test are obtained.

[0062] In the above process, each candidate surface defect accessory, each candidate structural defect accessory, and each candidate complex defect accessory in each non-destructive performance test and each destructive performance test are compared with each other. If at least one candidate surface defect accessory in each non-destructive performance test or each destructive performance test is the same as the candidate surface defect accessory in other non-destructive performance tests or destructive performance tests, then the same candidate surface accessory is taken as a common surface defect accessory, and the different candidate surface accessories are taken as single surface defect accessories. In this way, each single surface defect accessory and each common surface defect accessory in each non-destructive performance test are obtained. Similarly, each single structural defect accessory, each common structural defect accessory, each single complex defect accessory, and each complex structural defect accessory in each non-destructive performance test are obtained.

[0063] S332. Obtain the number of test attachments corresponding to each non-destructive performance test and each destructive performance test from the test center. Sort each non-destructive performance test and each destructive performance test in descending order according to the number of candidate attachments. The sorting result is the selection order.

[0064] It should be noted that sorting by the number of candidate attachments in descending order is actually sorting by the sum of the number of candidate surface defect attachments, the number of candidate structural defect attachments, and the number of candidate complex defect attachments in descending order.

[0065] S333. Using the classification results, confirm each accessory in each non-destructive performance test and confirm each accessory in each destructive performance test.

[0066] The specific process for confirming each accessory in each non-destructive performance test is as follows: S334-1 Obtain the non-destructive performance test with the first selection order, denoted as the first non-destructive performance test, obtain the total number of single surface defect accessories and single structural defect accessories in the first non-destructive performance test, and select each accessory of the first non-destructive performance test according to the principle of single defect priority.

[0067] Single defect priority principle: S334-11, obtain the total number of single surface defect attachments and single structural defect attachments in the first non-destructive performance test. If the total number is greater than or equal to the number of test attachments, randomly select the number of test attachments from each single surface defect attachment and each single structural defect attachment.

[0068] S334-12 Conversely, compare the sum of the number of single surface defect attachments, single structural defect attachments, and single complex defect attachments in the first non-destructive performance test with the number of test attachments. If the sum is greater than or equal to the number of test attachments, select all single surface defect attachments and single structural defect attachments, and select the remainder from each single complex defect attachment.

[0069] S334-13. If the sum of the three is less than the number of test attachments, then obtain the number of times each common surface defect attachment and the number of times each common structural defect attachment has the same count, and sort them in ascending order of the same count. The sorting result is the selection order. After selecting all single surface defect attachments, single structural defect attachments, and single complex defect attachments, select them in order. If the number of times each common surface defect attachment and the number of times each common structural defect attachment has the same count are still less than the number of test attachments, then obtain the number of times each common complex structural defect attachment has the same count, and sort them in ascending order of the same count. Continue selecting in the sorting order until all are selected. If it is still less than the number of test attachments, then report back to the testing center for attachment supplementation.

[0070] It should be noted that the sum of the three is the sum of the number of single surface defect attachments, the number of single structural defect attachments, and the number of single complex defect attachments.

[0071] Testers will select defect-free attachments for supplementation.

[0072] S334-2. After the selection is completed, remove the selected accessories from the remaining non-destructive performance tests, and then select the accessories for each non-destructive performance test in the order of selection, according to the first non-destructive performance test.

[0073] The specific process for confirming each accessory in each destructive performance test is as follows: S335-1, obtain the destructive performance test with the first selection order, denoted as the first destructive performance test, compare the number of single complex defect accessories in the first non-destructive performance test with the number of test accessories, and then select each accessory in the first destructive performance test according to the principle of prioritizing complex common defects.

[0074] Priority principle for complex common defects: S335-11, compare the number of single complex defect attachments in the first non-destructive performance test with the number of test attachments. If the number of single complex defect attachments is greater than or equal to the number of test attachments, randomly select the number of test attachments from each single complex defect attachment; otherwise, execute S335-12.

[0075] S335-12. Compare the total number of single surface defect attachments, single structural defect attachments, and single complex defect attachments in the first destructive performance test with the total number of test attachments. If the total is greater than the total number of test attachments, first select all single complex defect attachments, and then randomly select the remaining attachments from each single surface defect attachment and each single structural defect attachment. If the total is less than the total number of test attachments, execute S335-3.

[0076] S335-13. Obtain the number of times each common complex defect attachment has the same number of times, sort them in ascending order according to the sorting result, and select all single surface defect attachments, single structural defect attachments and single complex defect attachments. Then select each common complex defect attachment in the order of selection until the number of selected attachments is equal to the number of test attachments. If the number of selected attachments is still less than the number of test attachments after all attachments are selected, then execute S335-14.

[0077] S335-14. Obtain the number of times each common surface defect attachment and each common structural defect attachment are identical, and sort them in ascending order of the number of identical attachments. The sorting result is the selection order. Select attachments in the order of selection until the number of selected attachments is equal to the number of test attachments. If the number of selected attachments is still less than the number of test attachments after all attachments are selected, the feedback is sent to the test center for attachment supplementation.

[0078] S335-2. After the selection is completed, remove the selected accessories from the remaining destructive performance tests, and then select the accessories for each destructive performance test in the order of selection, according to the accessories of the first destructive performance test.

[0079] S4. Process any defective attachments that were not selected.

[0080] In the above process, for each defective attachment that was not selected, the defect information is recorded, and a rework instruction is issued for rework.

[0081] See Figure 2 As shown, a quality control system for marine accessories includes: a testing module, an analysis module, an allocation module, a processing module, and a database.

[0082] The testing module is used to select a number of defect-free accessories and a number of defective accessories. Based on the nature of the defects, the defective accessories are divided into accessories in the surface defect group and accessories in the structural defect group. At the same time, the performance tests are divided into non-destructive performance tests and destructive performance tests based on the destructive conditions. Non-destructive performance tests and destructive performance tests are performed using the defect-free accessories, accessories in the surface defect group, and accessories in the structural defect group, and the test data is collected.

[0083] The analysis module is used to analyze the tolerance of each non-destructive performance test and each destructive performance test to surface defects and structural defects of the accessories using test data, and to construct a performance-defect tolerance lookup table.

[0084] The allocation module is used to obtain the defect data of each attachment that has defects in the hierarchical inspection when performing hierarchical inspection on the attachment quality, and to select the attachments that can be used for performance testing from the attachments with defects using the performance-defect inclusive lookup table.

[0085] The processing module is used to process the defective attachments that were not selected.

[0086] The database stores surface defect data and structural defect data for each defective accessory.

[0087] The above description is merely an example and illustration of the concept of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the concept of the invention or exceed the scope defined in this specification, they should all fall within the protection scope of the present invention.

Claims

1. A method for quality control of marine accessories, characterized in that, The steps include: S1. Select a number of defect-free accessories and a number of defective accessories. Based on the nature of the defects, divide the defective accessories into accessories of the surface defect group and accessories of the structural defect group. At the same time, divide the performance tests into non-destructive performance tests and destructive performance tests based on the destructive conditions. Using the defect-free accessories, accessories of the surface defect group and accessories of the structural defect group, conduct non-destructive performance tests and destructive performance tests respectively, and collect test data. S2. Using the test data, analyze the tolerance of each non-destructive performance test and each destructive performance test to surface defects and structural defects of the accessories, and construct a performance-defect tolerance lookup table. S3. When performing hierarchical inspection on the quality of attachments, obtain the defect data of each attachment that has defects in the hierarchical inspection, and use the performance-defect inclusive lookup table to select each attachment that can be used for performance testing from the attachments with defects. S4. Process any defective attachments that were not selected.

2. The method for quality control of marine accessories according to claim 1, characterized in that, The specific process of the non-destructive performance test is as follows: S101. Extract the surface defect data of each accessory of the surface defect group, and then classify them according to the defect level, dividing each accessory of the surface defect group into accessories of each surface defect level. S102. Select a predetermined number of attachments from each surface defect level as a type of test attachment for each surface defect level in each non-destructive performance test. At the same time, select a predetermined number of attachments from several defect-free attachments as a type of appearance comparison attachment in each non-destructive performance test. S103. Conduct corresponding non-destructive performance tests on each type of test attachment and each type of appearance control attachment for each surface defect level in each non-destructive performance test, and collect the performance index data of each type of test attachment and each type of appearance control attachment for each surface defect level in each non-destructive performance test after the test results. S104. Conduct non-destructive performance tests on each accessory of the structural defect group according to S101-S104, and collect the performance index data of each type of test accessory for each structural defect level and the performance index data of each type of structural reference accessory in each non-destructive performance test after the test.

3. The method for quality control of marine accessories according to claim 2, characterized in that, The specific process of the destructive performance test is as follows: S111. Select a predetermined number of attachments from each surface defect level as Class II test attachments for each surface defect level in each destructive performance test. At the same time, select a predetermined number of attachments from several defect-free attachments as Class II appearance comparison attachments for each destructive performance test. S112. Conduct corresponding destructive performance tests on each type II test attachment and each type II appearance control attachment for each surface defect level in each destructive performance test, and collect the performance index data of each type II test attachment and each type II appearance control attachment for each surface defect level in each destructive performance test after the test results. S113. Select a predetermined number of attachments from each structural defect level as Class II test attachments for each structural defect level in each destructive performance test. At the same time, select a predetermined number of attachments from a number of defect-free attachments as Class II structural control attachments for each destructive performance test. Then conduct the corresponding destructive performance test. After the test results, collect the performance index data of each Class II test attachment and the performance index data of each Class II structural control attachment for each structural defect level in each destructive performance test. All data collected after the non-destructive performance test and the destructive performance test shall be used as test data.

4. The method for quality control of marine accessories according to claim 1, characterized in that, The specific process of S2 is as follows: S201. Extract the performance index data of each type of test attachment and the performance index data of each type of appearance control attachment for each surface defect level in each non-destructive performance test from the test data. Calculate the deviation rate of the performance index data for each surface defect level in each non-destructive performance test and compare it with the deviation rate range corresponding to each preset tolerance to obtain the tolerance of each non-destructive performance test for each surface defect level, where the tolerance includes high tolerance, medium tolerance and low tolerance. S202. Based on the analysis method of the tolerance of each non-destructive performance test to each surface defect level, analyze and obtain the tolerance of each non-destructive performance test to each structural defect level, the tolerance of each destructive performance test to each surface defect level, and the tolerance of each structural defect level. Construct a performance-defect tolerance lookup table based on the tolerance of each non-destructive performance test to each surface defect level, the tolerance of each structural defect level, the tolerance of each destructive performance test to each surface defect level, and the tolerance of each structural defect level.

5. A method for quality control of marine accessories according to claim 1, characterized in that, The specific process of S3 is as follows: S301. Based on the defect data, the defect data of each attachment that has defects in the hierarchical inspection is classified into each surface defect attachment, each structural defect attachment, and each complex defect attachment. S302. Obtain the surface defect level, structural defect level, and complex defect level of each surface defect attachment, each structural defect attachment, and each complex defect attachment. Extract the tolerance of each surface defect attachment and each structural defect attachment in each non-destructive performance test and each destructive performance test from the performance-defect tolerance lookup table. Analyze the tolerance of each complex defect attachment in each non-destructive performance test and each destructive performance test using the performance-defect tolerance lookup table. S303. Based on the tolerance of each surface defect attachment, each structural defect attachment, and each complex defect attachment in each non-destructive performance test and each destructive performance test, select the attachments that can be tested for performance, and confirm each attachment in each non-destructive performance test and each destructive performance test.

6. A method for quality control of marine accessories according to claim 5, characterized in that, The analysis process for the tolerance of each complex defect accessory in each non-destructive performance test and each destructive performance test is as follows: S321. Based on the defect data of each complex defect attachment, obtain the surface defect level and structural defect level of each complex defect attachment, and obtain the tolerance of the surface defect level and structural defect level of each complex defect attachment in each non-destructive performance test and each destructive performance test from the performance-defect tolerance lookup table. S322. Using the tolerance setting rules, the tolerance of each non-destructive performance test for the surface defect level and structural defect level of each complex defect accessory is determined. S323. Based on the analysis method of the tolerance of each non-destructive performance test to each complex defect accessory, the tolerance of each destructive performance test to each complex defect accessory is analyzed and obtained.

7. A method for quality control of marine accessories according to claim 5, characterized in that, The specific process of S303 is as follows: S331. Based on the tolerance of each surface defect attachment, each structural defect attachment, and each complex defect attachment in each non-destructive performance test, select each candidate surface defect attachment, each candidate structural defect attachment, and each candidate complex defect attachment in each non-destructive performance test and each destructive performance test, and classify them into each single surface defect attachment, each common surface defect attachment, each single structural defect attachment, each common structural defect attachment, each single complex defect attachment, and each complex structural defect attachment in each non-destructive performance test and each destructive performance test. S332. Obtain the number of test attachments corresponding to each non-destructive performance test and each destructive performance test from the test center, and sort each non-destructive performance test and each destructive performance test in descending order according to the number of candidate attachments. The sorting result is the selection order. S333. Using the classification results, confirm each accessory in each non-destructive performance test and confirm each accessory in each destructive performance test.

8. A method for quality control of marine accessories according to claim 7, characterized in that, The specific process for confirming each accessory in each non-destructive performance test is as follows: S334-1 Obtain the non-destructive performance test that is selected first in the selection order, and denot it as the first non-destructive performance test. Obtain the total number of single surface defect attachments and single structural defect attachments in the first non-destructive performance test, and select each attachment of the first non-destructive performance test according to the single defect priority principle. S334-2. After the selection is completed, remove the selected accessories from the remaining non-destructive performance tests, and then select the accessories for each non-destructive performance test in the order of selection, according to the first non-destructive performance test.

9. A method for quality control of marine accessories according to claim 7, characterized in that, The specific process for confirming each accessory in each destructive performance test is as follows: S335-1. Obtain the destructive performance test with the first selection order, and denote it as the first destructive performance test. Compare the number of single complex defect attachments in the first non-destructive performance test with the number of test attachments, and then select each attachment in the first destructive performance test according to the principle of prioritizing complex common defects. S335-2. After the selection is completed, remove the selected accessories from the remaining destructive performance tests, and then select the accessories for each destructive performance test in the order of selection, according to the accessories of the first destructive performance test.

10. A marine accessory quality control system implemented using the marine accessory quality control method according to any one of claims 1-9, characterized in that, include: The testing module is used to select a number of defect-free accessories and a number of defective accessories. Based on the nature of the defects, the defective accessories are divided into accessories of the surface defect group and accessories of the structural defect group. At the same time, the performance tests are divided into non-destructive performance tests and destructive performance tests based on the destructive conditions. Non-destructive performance tests and destructive performance tests are performed using the defect-free accessories, accessories of the surface defect group and accessories of the structural defect group, respectively, and the test data is collected. The analysis module is used to analyze the tolerance of each non-destructive performance test and each destructive performance test to surface defects and structural defects of the accessories using test data, and to build a performance-defect tolerance lookup table. The allocation module is used to obtain the defect data of each attachment that has defects in the hierarchical inspection when performing hierarchical inspection on the attachment quality, and to select the attachments that can be used for performance testing from the attachments with defects using the performance-defect inclusive lookup table. The processing module is used to process the defective attachments that were not selected.

Images