A stainless steel product compressive strength detection system

Abstract

The present application relates to the technical field of compressive strength detection, and particularly relates to a stainless steel product compressive strength detection system, which comprises a compressive strength detection platform, a test screening unit, a verification analysis unit, a test tracking unit, a test recording unit and a management response unit; the present application performs test interference screening analysis on the target product to be tested from the perspective of preliminary screening, so as to reasonably screen the target product to be tested, to reduce the interference of the defects of the target product to be tested on the compressive strength detection, to help improve the accuracy of the compressive strength detection result, to perform detection standard risk feedback analysis on the compressive strength detection equipment, to reduce the detection risk of the compressive strength detection equipment, and to perform flatness verification analysis operation in the form of information feedback, so as to perform secondary detection on the surface of the selected product to be tested, to ensure the flatness and smoothness of the appearance surface of the selected product to be tested.

Description

Technical Field

[0001] This invention relates to the field of compressive strength testing technology, and in particular to a compressive strength testing system for stainless steel products. Background Technology

[0002] Because stainless steel products have a smooth and sturdy surface, are not prone to accumulating dirt, and are easy to clean, they are widely used in building materials decoration, food processing and other fields. With the widespread use of stainless steel materials in industry and daily life, the testing of its strength performance has become particularly important. The strength test of stainless steel can not only assess its load-bearing capacity, but also help companies ensure the safety and quality of their products.

[0003] However, in the existing compressive strength testing technology for stainless steel products, it is impossible to jointly analyze the interference between the stainless steel product itself and the testing equipment on the compressive strength test, thereby reducing the accuracy of the compressive strength test for stainless steel products. Furthermore, it is impossible to test and analyze from two points: changes in the shape contour and fracture displacement, thereby reducing the reliability of the compressive strength test.

[0004] To address the aforementioned technical shortcomings, a solution is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a compressive strength testing system for stainless steel products to address the aforementioned technical deficiencies. This invention performs preliminary screening and interference analysis on the target test samples to reduce interference from defects in the samples themselves, thereby improving the accuracy of the test results. Simultaneously, it conducts risk feedback analysis on the compressive strength testing equipment to facilitate timely management and adjustments, reducing potential testing risks. Furthermore, it performs flatness verification analysis through information feedback to perform secondary testing on the selected test samples, ensuring surface flatness and smoothness. Finally, it analyzes deformation and fracture displacement to accurately detect the compressive strength of the selected test samples, thus improving the reliability of the compressive strength test.

[0006] The objective of this invention can be achieved through the following technical solution: a compressive strength testing system for stainless steel products, comprising a compressive strength testing platform, a testing and screening unit, a verification and analysis unit, a testing tracking unit, a testing recording unit, and a management and response unit;

[0007] The compressive strength testing platform is used to collect test interference information of the target test sample and send the test interference information to the test screening unit;

[0008] Upon receiving the test interference information, the test screening unit immediately performs test interference screening and analysis, and sets the target test product corresponding to the minimum value in the obtained test interference evaluation coefficient Xg as the selected test product.

[0009] The verification and analysis unit is used to collect historical testing information of the compressive strength testing equipment, perform risk feedback analysis on the historical testing information, compare and analyze the obtained parameter standard coefficients, and obtain standard instructions and control signals.

[0010] The test tracking unit is used to respond to standard commands, collect the interval distance between the upper surface of the selected test object and the hydraulic rod, and perform flatness verification and analysis operations to obtain the completion command;

[0011] The test recording unit is used to respond to the completion command, collect continuous frame feature images and pressure displacement curves of the front surface of the selected test object, perform pressure resistance test monitoring and analysis, and send the obtained test completion signal to the management response unit.

[0012] Preferably, the test interference screening and analysis process of the test screening unit is as follows:

[0013] The stainless steel product to be tested is obtained and set as the target test product. The test interference information of the target test product is obtained, including the appearance feature index and the temperature interference index. The target test product is marked as g, where g is a natural number greater than zero. The appearance feature index and the temperature interference index are labeled as NWg and WGg, respectively. The test interference evaluation coefficient Xg of each target test product is obtained according to the formula. The minimum value of the test interference evaluation coefficient Xg is obtained, and the target test product corresponding to the minimum value of the test interference evaluation coefficient Xg is set as the selected test product.

[0014] Preferably, the appearance feature index represents the sum of the differences between the feature images of the side of the target test object facing the hydraulic rod and the feature images of the side facing away from the hydraulic rod and the corresponding preset standard appearance feature images; the temperature interference index represents the number of sub-region blocks corresponding to the deviation of the surface temperature value of the target test object from the preset temperature range, dividing the target test object into i sub-region blocks, where i is a natural number greater than zero.

[0015] Preferably, the detection standard risk feedback analysis process of the verification analysis unit is as follows:

[0016] The historical testing information of the compressive strength testing equipment is obtained, including the total number of tests and the number of test errors. The ratio between the number of test errors and the total number of tests is then obtained, and this ratio is set as the testing standard index. The testing standard index is then processed to obtain a stability command or management signal.

[0017] Preferably, when a stabilization command is generated, the parameter standard coefficient of the compressive strength testing equipment is obtained. The parameter standard coefficient represents the percentage of the total number of historical tests conducted by the compressive strength testing equipment where the actual adjusted parameter value deviates from the set parameter value. The parameter standard coefficient is then compared and analyzed, and a standard command or control signal is generated.

[0018] Preferably, the flatness verification and analysis operation process of the test tracking unit is as follows:

[0019] Step 1: Collect the test period of the selected test sample and set it as the time threshold. Obtain the interval distance between the upper surface of the selected test sample and the hydraulic rod within the time threshold and set it as the downward movement distance. Obtain the actual downward movement distance corresponding to the moment when the hydraulic rod contacts the upper surface of the selected test sample. Compare and analyze the actual downward movement distance with the downward movement distance to obtain feedback instructions or processing signals.

[0020] Step 2: When a feedback instruction is generated, flip the selected test sample and repeat Step 1. When a feedback instruction is generated again, a completion instruction will be obtained.

[0021] Preferably, the stress test monitoring and analysis process of the test recording unit is as follows:

[0022] The hydraulic rod is controlled to perform the test. The time between the moment when the upper surface of the selected test object comes into contact with the hydraulic rod and the end of the test is collected and set as the analysis time. The continuous frame feature images of the front surface of the selected test object within the analysis time are obtained and set as compressed feature images. The compressed feature images are preprocessed and the outline of the front surface of the test object is obtained from the preprocessed compressed feature images and set as the compressed feature image acquisition.

[0023] The appearance feature image of the front surface of the selected test object is obtained when the upper surface of the selected test object is not in contact with the hydraulic rod. The appearance feature image of the front surface of the selected test object is preprocessed, including scaling and cropping. The appearance feature image of the front surface of the selected test object is obtained after preprocessing. Then, the outline of the front surface of the test object is obtained from the appearance feature image of the front surface of the selected test object after preprocessing, and it is set as the standard outline.

[0024] Preferably, the acquired compressed feature image is compared and analyzed with the standard outline. If there is a difference between the acquired compressed feature image and the standard outline, an output signal is generated.

[0025] The pressure displacement curve of the selected test sample is acquired in real time within the analysis period, and the pressure displacement curve is analyzed for discrimination. If a break point appears in the pressure displacement curve, an end signal is generated.

[0026] If either an output signal or a termination signal is generated, a test completion signal is obtained.

[0027] The beneficial effects of this invention are as follows:

[0028] (1) This invention performs test interference screening and analysis on the target test product from the perspective of preliminary screening, so as to perform reasonable screening of the target test product, reduce the interference of the target test product's own defects on the compressive strength test, and thus help improve the accuracy of the compressive strength test results. At the same time, it performs test standard risk feedback analysis on the compressive strength test equipment, so as to manage and adjust the compressive strength test equipment in a timely manner, thereby reducing the test risks of the compressive strength test equipment.

[0029] (2) The present invention performs flatness verification and analysis through information feedback, so as to perform secondary detection processing on the surface of the selected test product to ensure the flatness and smoothness of the appearance surface of the selected test product. The compressive strength of the selected test product is accurately detected by testing and analysis of the angle of deformation and fracture displacement, which helps to improve the reliability of the compressive strength detection of the selected test product. Attached Figure Description

[0030] The invention will now be further described with reference to the accompanying drawings;

[0031] Figure 1 This is a flowchart of the system of the present invention;

[0032] Figure 2 This is a partial analysis reference diagram of Embodiment 1 of the present invention. Detailed Implementation

[0033] 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.

[0034] Example 1:

[0035] Please see Figures 1 to 2As shown, the present invention is a compressive strength testing system for stainless steel products, including a compressive strength testing platform, a test screening unit, a verification and analysis unit, a test tracking unit, a test recording unit, and a management response unit. The compressive strength testing platform and the test screening unit are connected bidirectionally, the compressive strength testing platform and the verification and analysis unit are connected unidirectionally, the verification and analysis unit and the test tracking unit and the management response unit are both connected unidirectionally, the test tracking unit and the test recording unit and the management response unit are both connected unidirectionally, and the test recording unit and the management response unit are both connected unidirectionally.

[0036] The compressive strength testing platform is used to collect test interference information of the target test specimen and send the test interference information to the test screening unit. After receiving the test interference information, the test screening unit immediately performs test interference screening and analysis to perform reasonable screening of the target test specimen, thereby reducing the interference of the target test specimen's own defects on the compressive strength test and thus helping to improve the accuracy of the compressive strength test results. The specific test interference screening and analysis process is as follows:

[0037] Obtain the stainless steel product to be tested and set it as the target test product. Obtain the test interference information of the target test product, including the appearance characteristic index and the temperature interference index. Mark the target test product as g, where g is a natural number greater than zero. Label the appearance characteristic index and the temperature interference index as NWg and WGg, respectively. According to the formula... The test interference evaluation coefficients of each target test item are obtained. Among them, a1 and a2 are the preset scaling factor coefficients of appearance feature index and temperature interference index, respectively. The scaling factor coefficients are used to correct the deviations of various parameters in the formula calculation process, so as to make the calculation results more accurate. a3 is the preset correction factor coefficient. a1, a2 and a3 are all greater than zero. Xg is the test interference evaluation coefficient of each target test item. The minimum value of the test interference evaluation coefficient Xg is obtained, and the target test item corresponding to the minimum value of the test interference evaluation coefficient Xg is set as the selected test item. The selected test item is sent to the compressive strength testing platform.

[0038] In this embodiment of the invention, the target test item is a rectangular cuboid stainless steel product;

[0039] In this embodiment of the invention, the appearance feature index represents the sum of the differences between the feature images of the side of the target test object facing the hydraulic rod and the feature images of the side facing away from the hydraulic rod and the corresponding preset standard appearance feature images. It should be noted that the appearance feature index is a parameter that reflects the influence of the target test object itself on the subsequent compressive strength test.

[0040] In this embodiment of the invention, the temperature interference index represents the number of sub-region blocks whose surface temperature value deviates from the preset temperature range. The target test sample is divided into i sub-region blocks, where i is a natural number greater than zero. It should be noted that the larger the value of the temperature interference index, the greater the risk of deviation of the compressive strength value of the target test sample during the testing process.

[0041] The verification and analysis unit is used to collect historical testing information from the compressive strength testing equipment and perform risk feedback analysis on the historical testing information to enable timely management and adjustments to the compressive strength testing equipment, thereby reducing the testing risks associated with it. The specific risk feedback analysis process for testing standards is as follows:

[0042] Historical testing information from the compressive strength testing equipment is obtained, including the total number of tests and the number of test errors. The ratio between the number of test errors and the total number of tests is then calculated and set as the testing standard index. This index is then subjected to further processing.

[0043] If the detection standard index is equal to zero, a stable instruction is generated;

[0044] If the test standard index is not equal to zero, a management signal is generated and sent to the management response unit. After receiving the management signal, the management response unit immediately performs the preset early warning operation corresponding to the management signal, so as to make timely management adjustments to the compressive strength testing equipment and reduce the testing risks of the compressive strength testing equipment.

[0045] When a stabilization command is generated, the parameter standard coefficients of the compressive strength testing equipment are obtained. The parameter standard coefficients represent the percentage of the total number of historical tests conducted by the compressive strength testing equipment where the actual adjusted parameter values ​​deviate from the set parameter values. The parameter standard coefficients are then compared and analyzed.

[0046] If the standard coefficient of the parameter is equal to zero, then a standard instruction is generated;

[0047] If the parameter standard coefficient is not equal to zero, a control signal is generated and sent to the management response unit. Upon receiving the control signal, the management response unit immediately performs the preset early warning operation corresponding to the control signal, so as to adjust the parameters of the compressive strength testing equipment in a timely manner to ensure the effectiveness of the entire testing process.

[0048] Example 2:

[0049] When a standard command is generated, the test tracking unit responds to the command and collects the distance between the upper surface of the selected test object and the hydraulic rod. It then performs a flatness verification analysis to conduct a secondary inspection of the selected test object's surface, ensuring the flatness and smoothness of its appearance. The specific flatness verification analysis process is as follows:

[0050] Step 1: Collect the test period of the selected test sample and set it as the time threshold. Obtain the interval distance between the upper surface of the selected test sample and the hydraulic rod within the time threshold and set it as the downward displacement distance. Obtain the actual downward displacement distance corresponding to the moment when the hydraulic rod contacts the upper surface of the selected test sample, and compare and analyze the actual downward displacement distance with the actual downward displacement distance.

[0051] If the actual downward movement distance is equal to the downward movement distance, then a feedback command is generated;

[0052] If the actual downward movement distance is not equal to the downward movement distance, a processing signal is generated and sent to the management response unit. After receiving the processing signal, the management response unit immediately performs the preset warning operation corresponding to the processing signal in order to process the protruding part on the upper surface of the selected test item to ensure the flatness and smoothness of the appearance surface of the selected test item.

[0053] Step 2: When a feedback instruction is generated, flip the selected test sample and repeat Step 1. When a feedback instruction is generated again, a completion instruction will be obtained.

[0054] When a completion command is generated, the test recording unit responds by acquiring continuous frame feature images and compression displacement curves of the front surface of the selected test sample, and performing compression test monitoring analysis to accurately determine the compressive strength of the selected test sample. The specific compression test monitoring analysis process is as follows:

[0055] The hydraulic rod is controlled to perform the test. The time between the moment when the upper surface of the selected test object comes into contact with the hydraulic rod and the end of the test is collected and set as the analysis time. The continuous frame feature images of the front surface of the selected test object within the analysis time are obtained and set as compressed feature images. The compressed feature images are preprocessed and the outline of the front surface of the test object is obtained from the preprocessed compressed feature images and set as the compressed feature image acquisition.

[0056] The appearance feature image of the front surface of the selected test object is obtained when the upper surface of the selected test object is not in contact with the hydraulic rod. The appearance feature image of the front surface of the selected test object is preprocessed, including scaling and cropping. The appearance feature image of the front surface of the selected test object is obtained after preprocessing. Then, the outline of the front surface of the test object is obtained from the appearance feature image of the front surface of the selected test object after preprocessing, and it is set as the standard outline.

[0057] The acquired compressed feature image is compared and analyzed with the standard outline. If there is a difference between the acquired compressed feature image and the standard outline, an output signal is generated.

[0058] The pressure displacement curve of the selected test sample is acquired in real time within the analysis period, and the pressure displacement curve is analyzed for discrimination. If a break point appears in the pressure displacement curve, an end signal is generated.

[0059] If either an output signal or an end signal is generated, a test completion signal is obtained. The test completion signal is sent to the management response unit. Upon receiving the test completion signal, the management response unit immediately performs the preset warning operation corresponding to the test completion signal and displays the compressive strength test result of the selected test sample.

[0060] In summary, this invention performs preliminary screening and interference screening analysis on the target test items to facilitate reasonable screening and reduce the interference of defects in the test items themselves on the compressive strength test, thereby improving the accuracy of the compressive strength test results. Simultaneously, it conducts risk feedback analysis on the compressive strength testing equipment to enable timely management and adjustments, reducing potential testing risks. Furthermore, it performs flatness verification analysis through information feedback to perform secondary testing on the selected test items, ensuring the surface flatness and smoothness of the selected test items. Finally, it conducts testing and analysis from the perspective of deformation and fracture displacement to accurately detect the compressive strength of the selected test items, thus improving the reliability of the compressive strength test.

[0061] The threshold is set to facilitate comparison. The size of the threshold depends on the amount of sample data and the number of bases set by those skilled in the art for each set of sample data; as long as it does not affect the ratio between the parameter and the quantized value, it is acceptable.

[0062] The above formulas are all derived from software simulation using a large amount of data and are selected to be close to the actual values. The coefficients in the formulas are set by those skilled in the art according to the actual situation. The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the protection scope of the present invention.

Claims

1. A system for detecting compressive strength of a stainless steel article, characterized by, The anti-pressure strength detection platform, the test screening unit, the verification analysis unit, the test tracking unit, the test recording unit, and the management response unit are included. The anti-pressure strength detection platform is used to collect test interference information of a target to-be-tested product and send the test interference information to the test screening unit. After receiving the test interference information, the test screening unit immediately performs test interference investigation and screening analysis on the test interference information, sets the target to-be-tested product corresponding to the minimum value in the test interference evaluation coefficient Xg as a selected to-be-tested product. The verification analysis unit is used to collect historical detection information of the anti-pressure strength detection equipment, perform detection standard risk feedback analysis on the historical detection information, perform comparison analysis on the obtained parameter standard coefficient, and obtain a standard instruction and a control signal. The test tracking unit is used to respond to the standard instruction, collect the interval distance between the upper surface of the selected to-be-tested product and the hydraulic rod, and perform flatness verification analysis to obtain a completion instruction. The test recording unit is used to respond to the completion instruction, collect the continuous frame feature image and the down displacement curve of the front surface of the selected to-be-tested product, perform anti-pressure test supervision analysis, and send the test completion signal to the management response unit. The test interference investigation and screening analysis process of the test screening unit is as follows: The stainless steel product to be tested is obtained, and is set as a target to-be-tested product. Test interference information of the target to-be-tested product is obtained, the test interference information including an appearance feature index and a temperature interference index. The target to-be-tested product is marked as g, g is a natural number greater than zero. The appearance feature index and the temperature interference index are marked as NWg and WGg respectively. According to the formula A test interference evaluation coefficient Xg of each target to-be-tested product is obtained, wherein a1 and a2 are preset proportional factor coefficients of the appearance feature index and the temperature interference index respectively, and a3 is a preset correction factor coefficient. a1, a2 and a3 are all greater than zero. The minimum value in the test interference evaluation coefficient Xg is obtained, and the target to-be-tested product corresponding to the minimum value in the test interference evaluation coefficient Xg is set as a selected to-be-tested product. The appearance feature index represents the sum of the difference values between the feature image of the side of the target to-be-tested product facing the hydraulic rod and the feature image of the side of the target to-be-tested product facing away from the hydraulic rod and the corresponding preset standard appearance feature image. The temperature interference index represents the number of sub-regional blocks whose surface temperature values deviate from the preset temperature range. The target to-be-tested product is divided into i sub-regional blocks, and i is a natural number greater than zero.

2. The system for detecting the compressive strength of a stainless steel product according to claim 1, wherein The detection standard risk feedback analysis process of the verification analysis unit is as follows: After obtaining the historical detection information of the anti-pressure strength detection equipment, the detection total times and the detection error times are obtained, and then the ratio between the detection error times and the detection total times is obtained. The ratio between the detection error times and the detection total times is set as the detection standard index, and the detection standard index is discriminated to obtain a stable instruction or a management signal.

3. The system for detecting the compressive strength of a stainless steel article according to claim 2, wherein When the stable instruction is generated, the parameter standard coefficient of the anti-pressure strength detection equipment is obtained, which represents the proportion of the number of times that the actual adjustment parameter value deviates from the set parameter value in the historical detection total times of the anti-pressure strength detection equipment. The parameter standard coefficient is compared and analyzed to obtain a standard instruction or a control signal.

4. The system for detecting compressive strength of a stainless steel product according to claim 1, wherein The flatness verification analysis operation process of the test tracking unit is as follows: Step one: collect the test period of the selected to-be-tested product and set it as a time threshold. Obtain the interval distance between the upper surface of the selected to-be-tested product and the hydraulic rod within the time threshold, set it as a down distance, obtain the actual down distance corresponding to the time when the hydraulic rod contacts the upper surface of the selected to-be-tested product, and compare and analyze the actual down distance and the down distance to obtain a feedback instruction or a processing signal. Step two: when the feedback instruction is generated, the selected to-be-tested product is flipped, and step one is performed again. When the feedback instruction is generated again, a completion instruction is obtained.

5. The system for detecting the compressive strength of a stainless steel article according to claim 1, wherein The compression test supervision analysis process of the test recording unit is as follows: The control hydraulic rod carries out the test, collects the time length between the moment when the upper surface of the selected to-be-tested product contacts the hydraulic rod and the moment when the test ends, and sets it as the analysis time length, obtains the continuous frame feature images of the front surface of the selected to-be-tested product within the analysis time length, and sets them as the compression feature images, and pre-processes the compression feature images, and obtains the contour line of the front surface of the to-be-tested product from the pre-processed compression feature images, and sets it as the collected compression feature image; The appearance feature image of the front surface of the selected to-be-tested product at the moment when the upper surface of the selected to-be-tested product does not contact the hydraulic rod is obtained, and the appearance feature image of the front surface of the selected to-be-tested product is pre-processed, the pre-processing including scaling and cropping, the appearance feature image of the front surface of the selected to-be-tested product after pre-processing is obtained, and then the contour line of the front surface of the to-be-tested product is obtained from the appearance feature image of the front surface of the selected to-be-tested product after pre-processing, and is set as the standard contour line.

6. The system for detecting the compressive strength of a stainless steel article according to claim 5, wherein The collected compression feature image is compared and analyzed with the standard contour line, if there is a difference between the collected compression feature image and the standard contour line, an output signal is generated; The displacement curve of the selected to-be-tested product within the analysis time length is obtained in real time, and the displacement curve is analyzed, if the displacement curve has a fracture point, an end signal is generated; If one of the output signal or the end signal is generated, a test completion signal is obtained.

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