A control method for a press used for strength detection

Abstract

The present invention relates to the technical field of data processing, and discloses a control method for a press for strength detection, including: taking a sample to be detected, placing the sample to be detected on the press, and performing a first detection to obtain the first deformation compressive strength and the first fracture compressive strength of the sample to be detected through an image acquisition device; determining the loading speed based on the first fracture compressive strength; based on the first deformation compressive strength, the press increases the pressure on another sample to be detected at the loading speed for a second detection, and obtains the second deformation compressive strength and the second fracture compressive strength of the sample to be detected through the image acquisition device; through judgment and calculation, the fracture compressive strength and the deformation compressive strength are obtained. By comparing the results of multiple tests, the present invention intelligently determines a suitable loading speed, ensuring the accuracy and stability of the test.

Description

Technical Field

[0001] The present invention relates to the technical field of wireless chargers, and particularly to a control method for a strength detection press. Background Art

[0002] In the field of materials science, strength testing is a crucial research and quality control task. Traditional strength testing methods usually rely on presses to conduct experiments to measure the properties of materials under stress. However, the common problems existing in existing strength testing methods are the influence of the loading rate on the test results and the difficulty in ensuring the stability of the test process. In addition, there are large errors in dealing with the deformation compressive strength and fracture compressive strength of samples in traditional testing methods.

[0003] In traditional methods, the setting of the loading rate is easily affected by the skills and experience of the operator, resulting in the instability of the test results. Summary of the Invention

[0004] In view of this, the present invention provides a control method for a strength detection press to solve the problems in the background art.

[0005] The present invention proposes a control method for a strength detection press, including:

[0006] Take a number of samples to be detected that are exactly the same in size and shape. After placing the samples to be detected on the press, the press increases the pressure on the samples to be detected at a constant loading speed for one detection, and obtains the deformation compressive strength and fracture compressive strength of the samples to be detected once through an image acquisition device; determine the loading speed based on the fracture compressive strength once;

[0007] Based on the deformation compressive strength once, the press increases the pressure on another sample to be detected at the loading speed for a second detection, and obtains the deformation compressive strength and fracture compressive strength of the sample to be detected through the image acquisition device;

[0008] Judge whether the difference between the deformation compressive strength once and the deformation compressive strength twice, and the difference between the fracture compressive strength once and the fracture compressive strength twice are both less than 1%;

[0009] If both are less than or equal to 1%, then take the average value of the deformation compressive strength once and the deformation compressive strength twice as the deformation compressive strength of the object to be detected, and take the average value of the fracture compressive strength once and the fracture compressive strength twice as the fracture compressive strength of the object to be detected;

[0010] If the difference between the first deformation compressive strength and the second deformation compressive strength and / or the difference between the first fracture compressive strength and the second fracture compressive strength is greater than 1%, the press adjusts the loading speed for the other sample to be tested, and increases the pressure at the adjusted loading speed for three tests to obtain the third deformation compressive strength and the third fracture compressive strength. Take the average of the second deformation compressive strength and the third deformation compressive strength as the deformation compressive strength of the object to be tested, and take the average of the second fracture compressive strength and the third fracture compressive strength as the fracture compressive strength of the object to be tested.

[0011] Further, determining the loading speed based on the first fracture compressive strength includes: in the first test, the first deformation compressive strength Ma0 and the first fracture compressive strength are Na0, and there is a preset first fracture compressive strength matrix Na, a loading speed V0, and a loading speed matrix V. For the first fracture compressive strength matrix Na, set Na(Na1, Na2, Na3, Na4, Na5), where Na1 is the first preset first fracture compressive strength, Na2 is the second preset first fracture compressive strength, Na3 is the third preset first fracture compressive strength, Na4 is the fourth preset first fracture compressive strength, Na5 is the fifth preset first fracture compressive strength, and Na1 < Na2 < Na3 < Na4 < Na5; for the preset loading speed matrix V, set V(V1, V2, V3, V4, V5), where V1 is the first preset loading speed, V2 is the second preset loading speed, V3 is the third preset loading speed, V4 is the fourth preset loading speed, V5 is the fifth preset loading speed, and V1 < V2 < V3 < V4 < V5.

[0012] Further, determining the loading speed based on the first fracture compressive strength further includes:

[0013] When Na0 < Na1, set the first preset loading speed V1 as the loading speed of the press;

[0014] When Na1 ≤ Na0 < Na2, set the second preset loading speed V2 as the loading speed of the press;

[0015] When Na2 ≤ Na0 < Na3, set the third preset loading speed V3 as the loading speed of the press;

[0016] When Na3 ≤ Na0 < Na4, set the fourth preset loading speed V4 as the loading speed of the press;

[0017] When Na4 ≤ Na0 < Na5, set the fifth preset loading speed V5 as the loading speed of the press.

[0018] Further, based on the determined loading speed of the press, the secondary detection is performed on the sample to be detected, and the secondary deformation compressive strength Mb0 and the secondary fracture compressive strength Nb0 are obtained. The differences between the primary deformation compressive strength and the secondary deformation compressive strength, and between the primary fracture compressive strength and the secondary fracture compressive strength are calculated by the following formulas:

[0019] Difference between primary deformation compressive strength and secondary deformation compressive strength = Ma0 / Mb0;

[0020] Difference between primary fracture compressive strength and secondary fracture compressive strength = Na0 / Nb0.

[0021] Further, if Na0 / Nb0 ≤ 1%, and Ma0 / Mb0 ≤ 1%,

[0022] then the deformation compressive strength = (Na0 + Nb0) / 2;

[0023] The fracture compressive strength = (Ma0 + Mb0) / 2.

[0024] Further, the adjustment of the loading speed of the press for another sample to be detected includes: if the value of (Na0 / Nb0) and / or the value of (Ma0 / Mb0) is greater than 1, a loading speed correction coefficient is determined based on the primary fracture compressive strength;

[0025] A preset fracture strength difference Q0, a loading speed correction coefficient matrix I, and a fracture strength difference matrix Q are set. For the loading speed correction coefficient matrix I, I(I1, I2, I3, I4, I5) is set, where I1 is the first preset loading speed correction coefficient, I2 is the second preset loading speed correction coefficient, I3 is the third preset loading speed correction coefficient, I4 is the fourth preset loading speed correction coefficient, I5 is the fifth preset loading speed correction coefficient, and I1 < I2 < I3 < I4 < I5; for the preset fracture strength difference matrix Q, Q(Q1, Q2, Q3, Q4, Q5) is set, where Q1 is the first preset fracture strength difference, Q2 is the second preset fracture strength difference, Q3 is the third preset fracture strength difference, Q4 is the fourth preset fracture strength difference, Q5 is the fifth preset fracture strength difference, and Q1 < Q2 < Q3 < Q4 < Q5.

[0026] Further, the adjustment of the loading speed of the press for another sample to be detected further includes: the fracture strength difference Q0 satisfies the following relationship:

[0027] Fracture strength difference Q0 = Ma0 / Mb0 > 1;

[0028] When Q0 < Q1, set the first preset loading speed correction coefficient I1 as the loading speed correction coefficient of the press;

[0029] When Q1 ≤ Q0 < Q2, set the second preset loading speed correction coefficient I2 as the loading speed correction coefficient of the press;

[0030] When Q2 ≤ Q0 < Q3, set the third preset loading speed correction coefficient I3 as the loading speed correction coefficient of the press;

[0031] When Q3 ≤ Q0 < Q4, set the fourth preset loading speed correction coefficient I4 as the loading speed correction coefficient of the press;

[0032] When Q4 ≤ Q0 < Q5, set the fifth preset loading speed correction coefficient I5 as the loading speed correction coefficient of the press.

[0033] Further, the loading speed correction coefficient is determined according to the magnitude relationship of each preset fracture strength difference. When the first preset loading speed correction coefficient I1 is selected as the loading speed correction coefficient of the press, the adjusted loading speed is Va * I1, where a = 1, 2, 3, 4, 5;

[0034] When the second preset loading speed correction coefficient I2 is selected as the loading speed correction coefficient of the press, the adjusted loading speed is Va * I2, where a = 1, 2, 3, 4, 5;

[0035] When the third preset loading speed correction coefficient I3 is selected as the loading speed correction coefficient of the press, the adjusted loading speed is Va * I3, where a = 1, 2, 3, 4, 5;

[0036] When the fourth preset loading speed correction coefficient I4 is selected as the loading speed correction coefficient of the press, the adjusted loading speed is Va * I4, where a = 1, 2, 3, 4, 5;

[0037] When the fifth preset loading speed correction coefficient I5 is selected as the loading speed correction coefficient of the press, the adjusted loading speed is Va * I5, where a = 1, 2, 3, 4, 5.

[0038] Further, in the three detections, using Va * Ib, where a, b = 1, 2, 3, 4, 5 as the loading speed, obtain the three deformation compressive strengths Mc0 and the three fracture compressive strengths Nc0, and calculate the deformation compressive strength and the fracture compressive strength through the following relationship:

[0039] The deformation compressive strength = (Mb0 + Mc0) / 2;

[0040] The fracture compressive strength = (Nb0 + Nc0) / 2.

[0041] Further, the image acquisition device is any one of a digital camera, a laser scanner, and computer vision and image processing software.

[0042] Compared with the prior art, the control method of the press for strength detection in the embodiment of the present invention has the beneficial effects that:

[0043] This method applies a constant loading speed to the sample to be detected by the press and combines an image acquisition device to perform strength detection, making the detection process more automated. Through multiple tests and calculations, the method can improve the accuracy of strength testing. If the result of a single test is not accurate enough, the system can automatically adjust the loading speed according to the previous data to obtain a more accurate result. When the difference between the initial test result and the expected strength is large, the method allows the system to automatically adjust the loading speed to better adapt to the characteristics of different samples, thereby improving the applicability and reliability. This method can test multiple samples to be detected with the same size and shape at one time, and is suitable for mass production and quality control. Using an image acquisition device in combination with computer vision and image processing software helps to obtain accurate data on the deformation compressive strength and fracture compressive strength of the sample, while reducing the subjective interference of the operator. Description of the Drawings

[0044] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the provided drawings.

[0045] Figure 1 It is a flowchart of the control method of the press for strength detection in the embodiment of the present invention. Detailed Embodiments

[0046] The following will clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0047] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0048] The terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, the meaning of "a plurality" is two or more.

[0049] In the description of the present application, it should be noted that unless otherwise clearly specified and defined, the terms "mounted", "connected" and "coupled" shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0050] As Figure 1 shown, a control method for a strength detection press in a preferred embodiment of the present invention includes:

[0051] Take a number of test samples that are exactly the same in size and shape. After placing the test samples on the press, the press increases the pressure on the test samples at a constant loading speed for one test, and obtains the first deformation compressive strength and the first fracture compressive strength of the test samples through an image acquisition device; determine the loading speed based on the first fracture compressive strength;

[0052] Based on the first deformation compressive strength, the press increases the pressure on another test sample at the loading speed for a second test, and obtains the second deformation compressive strength and the second fracture compressive strength of the test samples through the image acquisition device;

[0053] Judge whether the differences between the first deformation compressive strength and the second deformation compressive strength, and between the first fracture compressive strength and the second fracture compressive strength are both less than 1%;

[0054] If both are less than or equal to 1%, take the average of the first deformation compressive strength and the second deformation compressive strength as the deformation compressive strength of the object to be tested, and take the average of the first fracture compressive strength and the second fracture compressive strength as the fracture compressive strength of the object to be tested;

[0055] If the difference between the first deformation compressive strength and the second deformation compressive strength and / or the difference between the first fracture compressive strength and the second fracture compressive strength is greater than 1%, the press adjusts the loading speed for another sample to be tested, and increases the pressure at the adjusted loading speed for three tests to obtain the third deformation compressive strength and the third fracture compressive strength. Take the average of the second deformation compressive strength and the third deformation compressive strength as the deformation compressive strength of the object to be tested, and take the average of the second fracture compressive strength and the third fracture compressive strength as the fracture compressive strength of the object to be tested.

[0056] It can be understood that the method of this embodiment has high precision and reliability: Through multiple tests and comparisons, this method can ensure that the measurement results of the deformation compressive strength and the fracture compressive strength are very accurate. By performing multiple tests and taking the average value, data errors can be reduced and the reliability of the test can be improved. Automation and high efficiency: The method uses a press and an image acquisition device to achieve an automated test process. Once the test parameters are set, the system can automatically perform multiple tests without manual intervention, improving the test efficiency. Wide applicability: This method is applicable to various different types of materials and samples. Regardless of the material, as long as the requirements of the same size and shape are met, this method can be used for strength testing, with strong versatility. Real-time adjustment of test parameters: When the test results deviate significantly from the expected values, the method allows the system to adjust the loading speed in real time to ensure that the test results are within a reasonable range. This real-time adjustment ensures the accuracy and reliability of the test. Reduced human intervention: Due to the automation of the test process, the possibility of human operation is reduced. The use of sensors and image acquisition devices can also reduce human errors and improve the accuracy of the test.

[0057] In some of these embodiments, determining the loading rate based on the one-time fracture compressive strength includes: in one detection, the one-time deformation compressive strength is Ma0 and the one-time fracture compressive strength is Na0, and there is a preset one-time fracture compressive strength matrix Na, a loading rate V0, and a loading rate matrix V. For the one-time fracture compressive strength matrix Na, set Na(Na1, Na2, Na3, Na4, Na5), where Na1 is the first preset one-time fracture compressive strength, Na2 is the second preset one-time fracture compressive strength, Na3 is the third preset one-time fracture compressive strength, Na4 is the fourth preset one-time fracture compressive strength, Na5 is the fifth preset one-time fracture compressive strength, and Na1 < Na2 < Na3 < Na4 < Na5; for the preset loading rate matrix V, set V(V1, V2, V3, V4, V5), where V1 is the first preset loading rate, V2 is the second preset loading rate, V3 is the third preset loading rate, V4 is the fourth preset loading rate, V5 is the fifth preset loading rate, and V1 < V2 < V3 < V4 < V5.

[0058] In some of these embodiments, determining the loading rate based on the one-time fracture compressive strength further includes:

[0059] When Na0 < Na1, set the first preset loading rate V1 as the loading rate of the press;

[0060] When Na1 ≤ Na0 < Na2, set the second preset loading rate V2 as the loading rate of the press;

[0061] When Na2 ≤ Na0 < Na3, set the third preset loading rate V3 as the loading rate of the press;

[0062] When Na3 ≤ Na0 < Na4, set the fourth preset loading rate V4 as the loading rate of the press;

[0063] When Na4 ≤ Na0 < Na5, set the fifth preset loading rate V5 as the loading rate of the press.

[0064] It can be understood that

[0065] In some of these embodiments, based on the determined loading rate of the press, perform a secondary detection on the sample to be detected, obtain the secondary deformation compressive strength Mb0 and the secondary fracture compressive strength Nb0, and calculate the difference between the one-time deformation compressive strength and the secondary deformation compressive strength, and the difference between the one-time fracture compressive strength and the secondary fracture compressive strength through the following formula:

[0066] The difference between the one-time deformation compressive strength and the secondary deformation compressive strength = Ma0 / Mb0;

[0067] The difference between the one-time fracture compressive strength and the secondary fracture compressive strength = Na0 / Nb0.

[0068] In some of these embodiments, if Na0 / Nb0 ≤ 1% and Ma0 / Mb0 ≤ 1%,

[0069] then the deformation compressive strength = (Na0 + Nb0) / 2;

[0070] The fracture compressive strength = (Ma0 + Mb0) / 2.

[0071] It can be understood that by calculating the difference between the primary deformation compressive strength and the secondary deformation compressive strength and the difference between the primary fracture compressive strength and the secondary fracture compressive strength, the consistency of the test results can be evaluated. If these differences are within a certain tolerance range (Na0 / Nb0 ≤ 1% and Ma0 / Mb0 ≤ 1%), then the test results can be considered stable and accurate. This improves the credibility of the test data. If the test results are stable (the difference is less than the tolerance), then the results of the primary test and the secondary test can be averaged. This helps to reduce errors that may be caused by special circumstances in a certain test, thereby obtaining more reliable test results. When the test results are stable, the system will automatically calculate and adopt the average value without manual intervention or manual selection. This reduces the subjective intervention of the operator during the test process and reduces the potential risk of operation errors. The automatic average calculation and stability judgment of the results improve the efficiency of the test. The operator does not need to manually intervene or repeat the test and can obtain reliable test results more quickly.

[0072] In some of these embodiments, the press adjusts the loading speed for another sample to be detected, including: if the value of (Na0 / Nb0) and / or the value of (Ma0 / Mb0) is greater than 1, then determine the loading speed correction coefficient based on the primary fracture compressive strength;

[0073] Preset a fracture strength difference Q0, a loading speed correction coefficient matrix I, and a fracture strength difference matrix Q. For the loading speed correction coefficient matrix I, set I(I1, I2, I3, I4, I5), where I1 is the first preset loading speed correction coefficient, I2 is the second preset loading speed correction coefficient, I3 is the third preset loading speed correction coefficient, I4 is the fourth preset loading speed correction coefficient, I5 is the fifth preset loading speed correction coefficient, and I1 < I2 < I3 < I4 < I5; for the preset fracture strength difference matrix Q, set Q(Q1, Q2, Q3, Q4, Q5), where Q1 is the first preset fracture strength difference, Q2 is the second preset fracture strength difference, Q3 is the third preset fracture strength difference, Q4 is the fourth preset fracture strength difference, Q5 is the fifth preset fracture strength difference, and Q1 < Q2 < Q3 < Q4 < Q5.

[0074] In some of these embodiments, the press adjusts the loading speed of another sample pair to be detected, and further includes: the fracture strength difference Q0 satisfies the following relationship:

[0075] The fracture strength difference Q0 = Ma0 / Mb0 > 1;

[0076] When Q0 < Q1, set the first preset loading speed correction coefficient I1 as the press loading speed correction coefficient;

[0077] When Q1 ≤ Q0 < Q2, set the second preset loading speed correction coefficient I2 as the press loading speed correction coefficient;

[0078] When Q2 ≤ Q0 < Q3, set the third preset loading speed correction coefficient I3 as the press loading speed correction coefficient;

[0079] When Q3 ≤ Q0 < Q4, set the fourth preset loading speed correction coefficient I4 as the press loading speed correction coefficient;

[0080] When Q4 ≤ Q0 < Q5, set the fifth preset loading speed correction coefficient I5 as the press loading speed correction coefficient.

[0081] In some of these embodiments, the loading speed correction coefficient is determined according to the magnitude relationship of each preset fracture strength difference. When the first preset loading speed correction coefficient I1 is selected as the press loading speed correction coefficient, the adjusted loading speed is Va*I1, where a = 1, 2, 3, 4, 5;

[0082] When the second preset loading speed correction coefficient I2 is selected as the press loading speed correction coefficient, the adjusted loading speed is Va*I2, where a = 1, 2, 3, 4, 5;

[0083] When the third preset loading speed correction coefficient I3 is selected as the press loading speed correction coefficient, the adjusted loading speed is Va*I3, where a = 1, 2, 3, 4, 5;

[0084] When the fourth preset loading speed correction coefficient I4 is selected as the press loading speed correction coefficient, the adjusted loading speed is Va*I4, where a = 1, 2, 3, 4, 5;

[0085] When the fifth preset loading speed correction coefficient I5 is selected as the press loading speed correction coefficient, the adjusted loading speed is Va*I5, where a = 1, 2, 3, 4, 5.

[0086] In some of these embodiments, during the three tests, with Va*Ib, where a, b = 1, 2, 3, 4, 5 as the loading rate, the three deformation compressive strengths Mc0 and the three fracture compressive strengths Nc0 are obtained, and the deformation compressive strength and the fracture compressive strength are calculated through the following relationships:

[0087] Deformation compressive strength = (Mb0 + Mc0) / 2;

[0088] Fracture compressive strength = (Nb0 + Nc0) / 2.

[0089] In some of these embodiments, the image acquisition device is any one of a digital camera, a laser scanner, and computer vision and image processing software.

[0090] It can be understood that by adjusting the loading rate according to the result of the first fracture compressive strength, the system can better adapt to the characteristics of the material to be tested. This helps to ensure more accurate test results and reduce errors caused by different material characteristics. The strength characteristics of different materials are different. By dynamically adjusting the loading rate according to the result of one test, various different types of materials can be dealt with without manual intervention or adjustment according to the material type.

[0091] The above is only one example of the present invention, but the scope of the present invention cannot be limited thereby. Any structural changes made based on the present invention, as long as the essence of the present invention is not lost, should be regarded as falling within the protection scope of the present invention and being restricted.

[0092] It should be noted that for the system provided in the above embodiments, only the above division of each functional module is used for illustration. In practical applications, the above functions can be allocated to different functional modules as needed, that is, the modules or steps in the embodiments of the present invention can be further decomposed or combined. For example, the modules in the above embodiments can be combined into one module, or further split into multiple sub-modules to complete all or part of the functions described above. For the names of the modules and steps involved in the embodiments of the present invention, they are only used to distinguish each module or step and are not regarded as an improper limitation of the present invention.

[0093] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, so that a process, method, article, or device / equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent in these processes, methods, articles, or devices / equipment.

[0094] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, those skilled in the art can easily understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the present invention.

[0095] The above is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. A control method for a strength detection press, characterized in that, Including: Take a number of samples to be tested with exactly the same size and shape. After placing the samples to be tested on a press, the press increases the pressure on the samples to be tested at a constant loading rate for one test. The first deformation compressive strength and the first fracture compressive strength of the samples to be tested are obtained through an image acquisition device; determine the loading rate based on the first fracture compressive strength; Based on the first deformation compressive strength, the press increases the pressure on another sample to be tested at the loading rate for a second test. The second deformation compressive strength and the second fracture compressive strength of the samples to be tested are obtained through the image acquisition device; Judge whether the difference between the first deformation compressive strength and the second deformation compressive strength and the difference between the first fracture compressive strength and the second fracture compressive strength are both less than 1%; If both are less than or equal to 1%, take the average value of the first deformation compressive strength and the second deformation compressive strength as the deformation compressive strength of the object to be tested, and take the average value of the first fracture compressive strength and the second fracture compressive strength as the fracture compressive strength of the object to be tested; If the difference between the first deformation compressive strength and the second deformation compressive strength and / or the difference between the first fracture compressive strength and the second fracture compressive strength is greater than 1%, the press adjusts the loading rate for another sample to be tested, and increases the pressure at the adjusted loading rate for a third test to obtain the third deformation compressive strength and the third fracture compressive strength. Take the average value of the second deformation compressive strength and the third deformation compressive strength as the deformation compressive strength of the object to be tested, and take the average value of the second fracture compressive strength and the third fracture compressive strength as the fracture compressive strength of the object to be tested.

2. The control method for a strength detection press according to claim 1, wherein, Determining the loading rate based on the first fracture compressive strength includes: in the first test, the first deformation compressive strength is Ma0 and the first fracture compressive strength is Na0, and there is a preset first fracture compressive strength matrix Na, a loading rate V0, and a loading rate matrix V. For the first fracture compressive strength matrix Na, set Na(Na1, Na2, Na3, Na4, Na5), where Na1 is the first preset first fracture compressive strength, Na2 is the second preset first fracture compressive strength, Na3 is the third preset first fracture compressive strength, Na4 is the fourth preset first fracture compressive strength, Na5 is the fifth preset first fracture compressive strength, and Na1 < Na2 < Na3 < Na4 < Na5; for the preset loading rate matrix V, set V(V1, V2, V3, V4, V5), where V1 is the first preset loading rate, V2 is the second preset loading rate, V3 is the third preset loading rate, V4 is the fourth preset loading rate, V5 is the fifth preset loading rate, and V1 < V2 < V3 < V4 < V5.

3. The control method for the strength detection press according to claim 2, wherein, Determining the loading rate based on the first fracture compressive strength further includes: When Na0 < Na1, set the first preset loading rate V1 as the loading rate of the press; When Na1 ≤ Na0 < Na2, set the second preset loading speed V2 as the loading speed of the press; When Na2 ≤ Na0 < Na3, set the third preset loading speed V3 as the loading speed of the press; When Na3 ≤ Na0 < Na4, set the fourth preset loading speed V4 as the loading speed of the press; When Na4 ≤ Na0 < Na5, set the fifth preset loading speed V5 as the loading speed of the press.

4. The control method for a strength detection press according to claim 3, characterized in that Based on the determined loading speed of the press, perform the secondary detection on the sample to be detected, obtain the secondary deformation compressive strength Mb0 and the secondary fracture compressive strength Nb0, and calculate the difference between the primary deformation compressive strength and the secondary deformation compressive strength, and the difference between the primary fracture compressive strength and the secondary fracture compressive strength through the following formula: Difference between primary deformation compressive strength and secondary deformation compressive strength = Ma0 / Mb0; Difference between primary fracture compressive strength and secondary fracture compressive strength = Na0 / Nb0.

5. The control method for the strength detection press according to claim 4, characterized in that, If Na0 / Nb0 ≤ 1% and Ma0 / Mb0 ≤ 1%, then the deformation compressive strength = (Na0 + Nb0) / 2; the fracture compressive strength = (Ma0 + Mb0) / 2.

6. The control method for a strength detection press according to claim 5, characterized in that, The press adjusts the loading speed for another sample to be detected, including: if the value of (Na0 / Nb0) and / or the value of (Ma0 / Mb0) is greater than 1, then determine the loading speed correction coefficient based on the primary fracture compressive strength; Preset the fracture strength difference Q0, the loading speed correction coefficient matrix I, and the fracture strength difference matrix Q. For the loading speed correction coefficient matrix I, set I(I1, I2, I3, I4, I5), where I1 is the first preset loading speed correction coefficient, I2 is the second preset loading speed correction coefficient, I3 is the third preset loading speed correction coefficient, I4 is the fourth preset loading speed correction coefficient, I5 is the fifth preset loading speed correction coefficient, and I1 < I2 < I3 < I4 < I5; for the preset fracture strength difference matrix Q, set Q(Q1, Q2, Q3, Q4, Q5), where Q1 is the first preset fracture strength difference, Q2 is the second preset fracture strength difference, Q3 is the third preset fracture strength difference, Q4 is the fourth preset fracture strength difference, Q5 is the fifth preset fracture strength difference, and Q1 < Q2 < Q3 < Q4 < Q5.

7. The control method for the strength detection press according to claim 6, characterized in that, The press adjusts the loading speed for another sample to be detected, and further includes: the fracture strength difference Q0 satisfies the following relationship: Fracture strength difference Q0 = Ma0 / Mb0 > 1; When Q0 < Q1, set the first preset loading speed correction coefficient I1 as the loading speed correction coefficient of the press; When Q1 ≤ Q0 < Q2, set the second preset loading speed correction coefficient I2 as the loading speed correction coefficient of the press; When Q2 ≤ Q0 < Q3, set the third preset loading speed correction coefficient I3 as the loading speed correction coefficient of the press; When Q3 ≤ Q0 < Q4, set the fourth preset loading speed correction coefficient I4 as the loading speed correction coefficient of the press; When Q4 ≤ Q0 < Q5, set the fifth preset loading speed correction coefficient I5 as the loading speed correction coefficient of the press.

8. The control method for a strength detection press according to claim 7, characterized in that, The loading speed correction coefficient is determined according to the magnitude relationship of the differences between the preset fracture strengths. When the first preset loading speed correction coefficient I1 is selected as the loading speed correction coefficient of the press, the adjusted loading speed is Va * I1, where a = 1, 2, 3, 4, 5; When the second preset loading speed correction coefficient I2 is selected as the loading speed correction coefficient of the press, the adjusted loading speed is Va * I2, where a = 1, 2, 3, 4, 5; When the third preset loading speed correction coefficient I3 is selected as the loading speed correction coefficient of the press, the adjusted loading speed is Va * I3, where a = 1, 2, 3, 4, 5; When the fourth preset loading speed correction coefficient I4 is selected as the loading speed correction coefficient of the press, the adjusted loading speed is Va * I4, where a = 1, 2, 3, 4, 5; When the fifth preset loading speed correction coefficient I5 is selected as the loading speed correction coefficient of the press, the adjusted loading speed is Va * I5, where a = 1, 2, 3, 4, 5.

9. The control method for a strength detection press according to claim 8, characterized in that, In the three detections, with Va * Ib, where a, b = 1, 2, 3, 4, 5 as the loading speed, obtain the three deformation compressive strengths Mc0 and the three fracture compressive strengths Nc0, and calculate the deformation compressive strength and the fracture compressive strength through the following relationships: The deformation compressive strength = (Mb0 + Mc0) / 2; The fracture compressive strength = (Nb0 + Nc0) / 2.

10. The control method for a strength detection press according to claim 9, characterized in that, The image acquisition device is any one of a digital camera, a laser scanner, and computer vision and image processing software.

Images