A control method and system for a production and testing line of self-adhesive stator and rotor cores

Abstract

The invention discloses a control method and system for a self-adhesive stator and rotor core production inspection line, which relates to the field of core inspection technology, including performing multiple adhesive performance tests and outputting performance strength; obtaining a top view of the core, outputting specification parameters of the core, and analyzing the specification parameters; performing adhesive inspection on the core and outputting multiple inspection judgment information; performing comprehensive analysis on the multiple inspection judgment information, and outputting quality judgment information based on the analysis results; the invention is used to solve the problem that the prior art lacks analysis of the production quality of rotor cores using adhesives, and is unable to accurately judge whether the adhesive performance of the core is good through measurement, and after the core is put into use, the performance of power equipment may be reduced or fail due to defects or faults of the core.

Description

Technical Field

[0001] The invention relates to the technical field of iron core detection, and in particular to a control method and system for a self-adhesive stator and rotor iron core production detection line. Background Art

[0002] The iron core is one of the key components in power transformers, inductors and electronic devices. Defects or faults in the iron core may cause performance degradation or failure of power equipment. Through iron core detection technology, the impact of different iron core designs and production processes on performance can be evaluated, thereby optimizing product design and production processes. This includes evaluating the magnetic properties, thermal characteristics and magnetic losses of different materials, and analyzing the impact of different assembly methods on iron core performance.

[0003] Existing improvements for core detection usually use professional detection equipment to detect the core in use to determine whether the core is severely damaged. For example, in a Chinese patent with invention publication number CN117240024A, a core detection device and a core magnetic steel production line are disclosed. This solution is to use the detection equipment to control the displacement of the core to a specific position and then perform the detection. However, the existing improvement method lacks analysis of the production quality of the rotor core using adhesives, and cannot accurately determine whether the adhesive performance of the core is good through measurement. After the core is put into use, the performance of the power equipment may be degraded or fail due to defects or failures of the core. In view of this, it is necessary to improve the existing core detection. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems in the prior art to a certain extent. By improving the iron core detection, it is used to solve the problem in the prior art that due to the lack of analysis on the production quality of the rotor iron core using adhesive, it is impossible to accurately judge through measurement whether the adhesive performance of the iron core is good, and after the iron core is put into use, the performance of the power equipment may be degraded or fail due to defects or faults of the iron core.

[0005] To achieve the above objectives, in a first aspect, the present invention provides a control method for a self-adhesive stator and rotor core production and testing line, comprising:

[0006] Conduct multiple adhesive performance tests on the adhesive, analyze the results of the multiple adhesive performance tests, and output performance strength based on the analysis results;

[0007] Obtain a top view of the iron core, perform recognition processing on the top view, and output specification parameters of the iron core; analyze the specification parameters, and output specification judgment information and adhesive detection information based on the analysis results;

[0008] Based on the adhesion detection information and performance strength, the core is subjected to adhesion detection, and multiple detection judgment information is output; the multiple detection judgment information is comprehensively analyzed, and quality judgment information is output based on the analysis results.

[0009] Furthermore, the performance strength includes shear strength and tensile strength. The adhesive is subjected to multiple adhesive performance tests, and the results of the multiple adhesive performance tests are analyzed. The performance strength output based on the analysis results includes:

[0010] Cutting the iron core to obtain a plurality of iron core samples having a first surface area;

[0011] The adhesive is subjected to a shear strength test, wherein the shear strength test comprises:

[0012] For any two iron core samples with clean surfaces, the adhesive is evenly applied on the surface of any one of the iron core samples, and the two iron core samples are controlled to adhere to each other to obtain an adhered sample;

[0013] The adhesion sample is fixed horizontally using a shear tester, wherein the shear tester is capable of applying equal and opposite forces to the core sample;

[0014] Use a fixed camera to obtain a picture of the adhesion sample, obtain the edge of the adhesion sample through binarization processing, and mark it as the initial edge;

[0015] Set the rate of increase of the force applied by the shear tester, and control the shear tester to apply equal and opposite forces to the adhesion sample, with the extension lines of the forces not intersecting and increasing over time;

[0016] The image of the adhesion sample is obtained at each unit time interval, and the edge of the adhesion sample is obtained by binarization processing and marked as the analysis edge;

[0017] Set different colors for the initial edge and the analysis edge, superimpose the initial edge and the analysis edge in the same layer, compare whether the analysis edge completely overlaps with the initial edge, if it completely overlaps, delete the analysis edge, continue to obtain the analysis edge at each unit time interval, and compare whether the analysis edge completely overlaps with the initial edge;

[0018] If they are not completely overlapped, the shear strength test is stopped, and the force currently applied by the shear tester is obtained and marked as the shear threshold;

[0019] The shear strength test of the first number is repeatedly performed to obtain a shear threshold value of the first number plus one.

[0020] Further, the adhesive is subjected to multiple adhesive performance tests, the results of the multiple adhesive performance tests are analyzed, and the performance strength is output based on the analysis results, which also includes:

[0021] The average of all shear thresholds was calculated and labeled as mean shear force;

[0022] The ratio of the average shear force to the first area is calculated and labeled as shear strength.

[0023] Further, the adhesive is subjected to multiple adhesive performance tests, the results of the multiple adhesive performance tests are analyzed, and the performance strength is output based on the analysis results, which also includes:

[0024] The adhesive is subjected to a tensile strength test, the tensile strength test comprising:

[0025] Obtain a sticking sample, fix the sticking sample vertically using a shear tester, and obtain an initial edge of the sticking sample;

[0026] Set the rate of increase of the force applied by the shear tester, and control the shear tester to apply equal and opposite forces to the adhesion sample, with the extension lines of the forces intersecting and increasing over time;

[0027] The analysis edge is acquired once at each unit time interval, and the analysis edge is compared to see whether it completely overlaps with the initial edge. If it completely overlaps, the analysis edge is deleted, and the analysis edge is acquired once at each unit time interval, and the analysis edge is compared to see whether it completely overlaps with the initial edge.

[0028] If they are not completely overlapped, the tensile strength test is stopped, and the force currently applied by the shear tester is obtained and marked as the tensile threshold;

[0029] The tensile strength test of the first number is repeatedly performed to obtain a tensile threshold value of the first number plus one.

[0030] Further, the adhesive is subjected to multiple adhesive performance tests, the results of the multiple adhesive performance tests are analyzed, and the performance strength is output based on the analysis results, which also includes:

[0031] The average of all stretch thresholds was calculated and labeled as the average stretch force;

[0032] The ratio of the average tensile force to the first area is calculated and labeled as tensile strength.

[0033] Further, the specification judgment information includes specification qualified information and specification unqualified information, obtaining a top view of the iron core, identifying and processing the top view, and outputting specification parameters of the iron core; analyzing the specification parameters, and outputting specification judgment information and adhesive detection information based on the analysis results, including:

[0034] Obtain a top view of the iron core, perform binarization on the top view, and obtain an outer edge of the iron core and an inner edge of the iron core;

[0035] Use any two straight lines passing through the geometric center of the core to intersect with the outer edge of the core and the inner edge of the core, calculate the distance between the two intersection points with the outer edge of the core, and mark them as single diameters; calculate the absolute value of the difference between the two single diameters and the preset diameter, and mark them as floating diameters;

[0036] Compare the floating diameter with the preset floating value. When the floating diameter is greater than the preset floating value, output specification failure information.

[0037] When the floating diameter is less than or equal to the preset floating value, the distance between the two intersection points with the inner edge of the core is calculated and marked as the inner ring diameter;

[0038] Use the area calculation formula to calculate the inner ring diameter and single diameter, and output the core area;

[0039] The area calculation formula is configured as: Where Sh is the core area, r is the single diameter, and l is the inner ring diameter;

[0040] Output specification qualification information and adhesion detection information, wherein the specification qualification information includes the core area.

[0041] Further, based on the adhesion detection information and the performance strength, the core is subjected to adhesion detection, and a plurality of detection judgment information is output; the plurality of detection judgment information is comprehensively analyzed, and the quality judgment information output based on the analysis result includes:

[0042] When the adhesive test information is received, the product of the shear strength and the core area is calculated and marked as the maximum shear bearing capacity;

[0043] Calculate the product of the tensile strength and the core area and mark it as the maximum tensile force.

[0044] Further, the detection and judgment information includes shear qualified information, shear unqualified information, tensile qualified information and tensile unqualified information; based on the adhesion detection information and the performance strength, the core is subjected to adhesion detection, and a plurality of detection and judgment information is output; a plurality of detection and judgment information is comprehensively analyzed, and the quality judgment information output based on the analysis result also includes:

[0045] Use a shear tester to fix the core horizontally and obtain the initial edge;

[0046] Controlling the shear testing machine to apply a maximum shear force of a first scaling factor to the iron core;

[0047] After a unit time interval equal to the first increase multiple, the analysis edge of the core is obtained;

[0048] Compare and analyze whether the edge completely overlaps with the initial edge. If it completely overlaps, output the qualified information of shearing; if it does not completely overlap, output the unqualified information of shearing;

[0049] Use a shear tester to fix the core vertically and obtain the initial edge;

[0050] Controlling the shear testing machine to apply a maximum tensile force of a first scaling factor to the iron core;

[0051] After a unit time interval equal to the first increase multiple, the analysis edge of the core is obtained;

[0052] Compare and analyze whether the edge completely overlaps with the initial edge. If it completely overlaps, output the tensile qualified information; if it does not completely overlap, output the tensile unqualified information.

[0053] Further, based on the adhesion detection information and the performance strength, the core is subjected to adhesion detection, and a plurality of detection judgment information is output; the plurality of detection judgment information is comprehensively analyzed, and the quality judgment information is output based on the analysis result, which also includes:

[0054] When receiving shear failure information or tensile failure information, outputting core failure information;

[0055] When the shear qualified information and the tensile qualified information are received, the core qualified information is output.

[0056] In a second aspect, the present invention further provides a control system for a self-adhesive stator and rotor core production and testing line, including an adhesive performance detection module, an iron core specification detection module, and an iron core adhesive detection module; the adhesive performance detection module is used to perform multiple adhesive performance tests on the adhesive, analyze the results of the multiple adhesive performance tests, and output performance strength based on the analysis results;

[0057] The core specification detection module is used to obtain a top view of the core, identify and process the top view, and output specification parameters of the core; analyze the specification parameters, and output specification judgment information and adhesion detection information based on the analysis results;

[0058] The core adhesion detection module is used to perform adhesion detection on the core based on adhesion detection information and performance strength, and output multiple detection judgment information; perform comprehensive analysis on the multiple detection judgment information, and output quality judgment information based on the analysis results.

[0059] Beneficial effects of the present invention: the present invention obtains a plurality of small core samples by cutting the core, and then uses adhesive to bond the core samples in pairs to obtain bonded cores, and then performs multiple shear strength tests and tensile strength tests on the bonded cores, averages the results of the multiple tests, and finally outputs the shear strength and tensile strength; the advantage is that for objects made of different materials, the actual adhesion performance provided by the adhesive also varies, and the cores on the production line are used for cutting, which improves the reliability of the performance strength of the adhesive measured as much as possible; performing multiple measurements and averaging the final results can avoid the situation where too few measurements lead to accidental situations being used as results, and further improves the reliability of the performance strength test;

[0060] The present invention also obtains a top view of the iron core, identifies and calculates the top view to output the core area, then calculates the maximum shear force and the maximum tensile force according to the core area and performance strength, and then performs an adhesion test on the iron core, and outputs quality judgment information based on the test results. The advantage of this is that by scaling the maximum shear force and the maximum tensile force by a small amount and then applying them to the iron core, it is possible to avoid damage to the iron core while judging that the iron core has sufficient bonding strength, thereby improving the intelligence of the iron core detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0061] Figure 1 is a functional block diagram of the system of the present invention;

[0062] Figure 2 is a flow chart of the steps of the method of the present invention;

[0063] Figure 3 is a schematic diagram of a shear strength test of the present invention;

[0064] Figure 4 It is a schematic diagram of the tensile strength test of the present invention. DETAILED DESCRIPTION

[0065] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0066] Example 1, please refer to Figure 1As shown, the present invention provides a control system for a self-adhesive stator and rotor core production and detection line, including an adhesive performance detection module, an iron core specification detection module, and an iron core adhesive detection module; the adhesive performance detection module is used to perform multiple adhesive performance tests on the adhesive, analyze the results of the multiple adhesive performance tests, and output performance strength based on the analysis results;

[0067] The adhesive performance detection module is equipped with a shear strength detection strategy, which includes:

[0068] Cutting the iron core to obtain a plurality of iron core samples having a first surface area;

[0069] In specific implementation, the first area is set to 5cm 2 The first area is obtained by combining the area of ​​a single finished iron core. When the first area is set too large, a single finished iron core is not enough to be cut into multiple iron core samples, and multiple finished iron cores need to be cut, which will cause a waste of resources; when the first area is set too small, the volume of the iron core sample is too small, which is not easy for subsequent operations;

[0070] See also Figure 3 As shown, Figure 3 In the figure, L1 is a bonded core obtained by bonding two identical core samples by adhesive, and the bonded core is horizontally fixed on the shear tester; L2 and L3 are force applying devices in the shear tester, wherein L3 can move horizontally to adjust the direction of force applied to the bonded core; L4 is a camera at a fixed position;

[0071] By adjusting the position of the adhesion core, L2 can apply a vertical downward pulling force to the adhesion core, and L3 can apply a vertical upward pulling force to the adhesion core; Figure 3 Under the premise of L2 and L3 being in the middle position, the force increasing rate is set to 2N / s. Both L2 and L3 start to increase the pulling force on the adhesion core at the increasing rate from 0N. In the first second, the pulling force applied by L2 and L3 is 2N, in the second second it is 4N, and so on.

[0072] For any second, L2 and L3 apply the same force. At this time, the forces applied are the same in magnitude and opposite in direction. The extension lines of the forces are parallel lines and never intersect. At this time, the forces applied by L2 and L3 are equivalent to shear forces.

[0073] Then, by obtaining the edge of the adhesion core and analyzing whether the initial edge and the analysis edge completely overlap, it is determined whether the shear force is completely overcome;

[0074] It should be noted that the bonding strength of an adhesive is usually measured by its shear strength, that is, the amount of shear force it can withstand; when the applied shear force exceeds the shear strength of the adhesive, the adhesive can no longer maintain the adhesion of the bonded core, which will cause relative sliding between the two core samples, which is represented in the picture as the analysis edge not completely overlapping the initial edge.

[0075] Conduct shear strength test on adhesive. Shear strength test includes:

[0076] For any two iron core samples with clean surfaces, the adhesive is evenly applied on the surface of any one of the iron core samples, and the two iron core samples are controlled to adhere to each other to obtain an adhered sample;

[0077] It should be noted that the purpose of using a clean surface of the core sample is to remove dirt or grease that may affect the bonding. When bonding two core samples, a coating knife, roller or other coating tools should be used to ensure uniform distribution of the adhesive.

[0078] Use a shear tester to fix the adhesion sample horizontally. The shear tester can apply equal and opposite forces to the core sample.

[0079] Use a fixed camera to obtain a picture of the adhesion sample, obtain the edge of the adhesion sample through binarization processing, and mark it as the initial edge;

[0080] Set the rate of increase of the force applied by the shear tester, and control the shear tester to apply equal and opposite forces to the adhesion sample, with the extension lines of the forces not intersecting and increasing over time;

[0081] The image of the adhesion sample is obtained at each unit time interval, and the edge of the adhesion sample is obtained by binarization processing and marked as the analysis edge;

[0082] It should be noted that the unit time is 1s;

[0083] Set different colors for the initial edge and the analysis edge, superimpose the initial edge and the analysis edge in the same layer, compare whether the analysis edge completely overlaps with the initial edge, if it completely overlaps, delete the analysis edge, continue to obtain the analysis edge at each unit time interval, and compare whether the analysis edge completely overlaps with the initial edge;

[0084] In a specific implementation, a preferred color setting method is to set the initial edge to red and the analysis edge to green; when the initial edge and the analysis edge completely overlap, there will only be one color based on the layer priority, and when the initial edge and the analysis edge do not completely overlap, there will be two colors, and red and green are one of the three primary colors, which can be easily judged by analyzing the RGB values ​​in the graph.

[0085] If they are not completely overlapped, the shear strength test is stopped, and the force currently applied by the shear tester is obtained and marked as the shear threshold;

[0086] Repeat the shear strength test of the first number to obtain the shear threshold value of the first number plus one;

[0087] In the specific implementation, the first number is set to 4, and a total of 5 sets of shearing thresholds are obtained;

[0088] The average of all shear thresholds was calculated and labeled as mean shear force;

[0089] The ratio of the average shear force to the first area is calculated and labeled as shear strength.

[0090] See also Figure 4 As shown, Figure 4 The bonded core is fixed vertically, and the position of L3 is adjusted so that the centers of L3 and L2 are on the same straight line; at this time, the force increase rate is set to 2N / s, and both L2 and L3 increase the pulling force on the bonded core from 0N at the increasing rate; for any one second, L2 and L3 apply the same force, and at this time, the forces applied are the same in magnitude and opposite in direction, and the extension lines of the forces intersect;

[0091] The adhesive performance testing module is also equipped with a tensile strength testing strategy, which includes:

[0092] Conduct tensile strength test on adhesive. The tensile strength test includes:

[0093] Obtain a sticking sample, fix the sticking sample vertically using a shear tester, and obtain an initial edge of the sticking sample;

[0094] Set the rate of increase of the force applied by the shear tester, and control the shear tester to apply equal and opposite forces to the adhesion sample, with the extension lines of the forces intersecting and increasing over time;

[0095] The analysis edge is acquired once at each unit time interval, and the analysis edge is compared to see whether it completely overlaps with the initial edge. If it completely overlaps, the analysis edge is deleted, and the analysis edge is acquired once at each unit time interval, and the analysis edge is compared to see whether it completely overlaps with the initial edge.

[0096] If they are not completely overlapped, the tensile strength test is stopped, and the force currently applied by the shear tester is obtained and marked as the tensile threshold;

[0097] Repeat the tensile strength test of the first number to obtain the tensile threshold value of the first number plus one;

[0098] The average of all stretch thresholds was calculated and labeled as the average stretch force;

[0099] The ratio of the average tensile force to the first area is calculated and labeled as tensile strength.

[0100] The core specification detection module is used to obtain a top view of the core, identify and process the top view, and output the specification parameters of the core; analyze the specification parameters, and output specification judgment information and adhesive detection information based on the analysis results;

[0101] The core specification detection module is equipped with an area detection strategy, which includes:

[0102] Obtain a top view of the iron core, perform binarization on the top view, and obtain an outer edge of the iron core and an inner edge of the iron core;

[0103] Use any two straight lines passing through the geometric center of the core to intersect with the outer edge of the core and the inner edge of the core, calculate the distance between the two intersection points with the outer edge of the core, and mark them as single diameters; calculate the absolute value of the difference between the two single diameters and the preset diameter, and mark them as floating diameters;

[0104] Compare the floating diameter with the preset floating value. When the floating diameter is greater than the preset floating value, output specification failure information.

[0105] It should be noted that the preset diameter and the preset floating value are both specification parameters set in advance during the production process. For example, if the preset diameter is 5dm and the preset floating value is ±5cm, it means that the diameter of the iron core to be generated is 5dm. However, due to slight errors in production, the diameter of the final iron core is usually not equal to 5dm. At this time, by setting the floating value of ±5cm, the diameter of the iron core is allowed to float within the range of 5dm-5cm to 5dm+5cm.

[0106] When the floating diameter is less than or equal to the preset floating value, the distance between the two intersection points with the inner edge of the core is calculated and marked as the inner ring diameter;

[0107] Use the area calculation formula to calculate the inner ring diameter and single diameter, and output the core area;

[0108] The area calculation formula is configured as: Where Sh is the core area, r is the single diameter, and l is the inner ring diameter;

[0109] Outputs specification compliance information and adhesive detection information. Specification compliance information includes core area.

[0110] The core adhesion detection module is used to perform adhesion detection on the core based on adhesion detection information and performance strength, and output multiple detection judgment information; perform comprehensive analysis on multiple detection judgment information, and output quality judgment information based on the analysis results;

[0111] The core adhesion detection module is equipped with a core adhesion detection strategy, which includes:

[0112] When the adhesive test information is received, the product of the shear strength and the core area is calculated and marked as the maximum shear bearing capacity;

[0113] Calculate the product of tensile strength and core area and mark it as maximum tensile force;

[0114] Use a shear tester to fix the core horizontally and obtain the initial edge;

[0115] Controlling the shear testing machine to apply a maximum shear force of a first scaling factor to the iron core;

[0116] After a unit time interval equal to the first increase multiple, the analysis edge of the core is obtained;

[0117] Compare and analyze whether the edge completely overlaps with the initial edge. If it completely overlaps, output the qualified information of shearing; if it does not completely overlap, output the unqualified information of shearing;

[0118] In the specific implementation, the first scaling factor is set to 0.9, and the first enlargement factor is set to 3; since both the shear strength and the tensile strength are the maximum adhesive properties of the adhesive, if scaling is not performed, the qualified iron core may be stretched or relatively slide, so a small scaling process is performed; when the iron core bears the maximum shear force and no relative sliding occurs within 3s, it indicates that the adhesion performance is good;

[0119] Use a shear tester to fix the core vertically and obtain the initial edge;

[0120] Controlling the shear testing machine to apply a maximum tensile force of a first scaling factor to the iron core;

[0121] After a unit time interval equal to the first increase multiple, the analysis edge of the core is obtained;

[0122] Compare and analyze whether the edge is completely overlapped with the initial edge. If it is completely overlapped, output the tensile qualified information; if it is not completely overlapped, output the tensile unqualified information;

[0123] When receiving shear failure information or tensile failure information, outputting core failure information;

[0124] When the shear qualified information and the tensile qualified information are received, the core qualified information is output.

[0125] Example 2, please refer to Figure 2As shown, the present invention also provides a control method for a self-adhesive stator and rotor core production and testing line, comprising: step S1, performing multiple adhesive performance tests on the adhesive, analyzing the results of the multiple adhesive performance tests, and outputting performance strength based on the analysis results; step S1 also includes the following sub-steps:

[0126] Step S101, cutting the iron core to obtain a plurality of iron core samples having a first surface area;

[0127] Step S102, performing a shear strength test on the adhesive, the shear strength test includes:

[0128] For any two iron core samples with clean surfaces, the adhesive is evenly applied on the surface of any one of the iron core samples, and the two iron core samples are controlled to adhere to each other to obtain an adhered sample;

[0129] Use a shear tester to fix the adhesion sample horizontally. The shear tester can apply equal and opposite forces to the core sample.

[0130] Use a fixed camera to obtain a picture of the adhesion sample, obtain the edge of the adhesion sample through binarization processing, and mark it as the initial edge;

[0131] Set the rate of increase of the force applied by the shear tester, and control the shear tester to apply equal and opposite forces to the adhesion sample, with the extension lines of the forces not intersecting and increasing over time;

[0132] The image of the adhesion sample is obtained at each unit time interval, and the edge of the adhesion sample is obtained by binarization processing and marked as the analysis edge;

[0133] Set different colors for the initial edge and the analysis edge, superimpose the initial edge and the analysis edge in the same layer, compare whether the analysis edge completely overlaps with the initial edge, if it completely overlaps, delete the analysis edge, continue to obtain the analysis edge at each unit time interval, and compare whether the analysis edge completely overlaps with the initial edge;

[0134] If they are not completely overlapped, the shear strength test is stopped, and the force currently applied by the shear tester is obtained and marked as the shear threshold;

[0135] The shear strength test of the first number is repeatedly performed to obtain a shear threshold value of the first number plus one.

[0136] Step S103, calculating the average value of all shear thresholds, marked as average shear force; calculating the ratio of the average shear force to the first area, marked as shear strength;

[0137] Step S104, performing a tensile strength test on the adhesive, the tensile strength test comprising:

[0138] Obtain a sticking sample, fix the sticking sample vertically using a shear tester, and obtain an initial edge of the sticking sample;

[0139] Set the rate of increase of the force applied by the shear tester, and control the shear tester to apply equal and opposite forces to the adhesion sample, with the extension lines of the forces intersecting and increasing over time;

[0140] The analysis edge is acquired once at each unit time interval, and the analysis edge is compared to see whether it completely overlaps with the initial edge. If it completely overlaps, the analysis edge is deleted, and the analysis edge is acquired once at each unit time interval, and the analysis edge is compared to see whether it completely overlaps with the initial edge.

[0141] If they are not completely overlapped, the tensile strength test is stopped, and the force currently applied by the shear tester is obtained and marked as the tensile threshold;

[0142] The tensile strength test of the first number is repeatedly performed to obtain a tensile threshold value of the first number plus one.

[0143] Step S105, calculating the average value of all stretching thresholds, marked as average stretching force; calculating the ratio of the average stretching force to the first area, marked as stretching strength.

[0144] Step S2, obtaining a top view of the iron core, performing identification processing on the top view, and outputting specification parameters of the iron core; analyzing the specification parameters, and outputting specification judgment information and adhesion detection information based on the analysis results; Step S2 also includes the following sub-steps:

[0145] Step S201, obtaining a top view of the iron core, and performing binarization processing on the top view to obtain an outer edge of the iron core and an inner edge of the iron core;

[0146] Step S202, using any two straight lines passing through the geometric center of the core to intersect with the outer edge of the core and the inner edge of the core, calculating the distance between the two intersection points with the outer edge of the core, marking them as single diameters; calculating the absolute values ​​of the differences between the two single diameters and the preset diameters, marking them as floating diameters;

[0147] Step S203, comparing the floating diameter with a preset floating value, and outputting specification failure information when the floating diameter is greater than the preset floating value;

[0148] Step S204, when the floating diameter is less than or equal to the preset floating value, the distance between the two intersection points with the inner edge of the core is calculated and marked as the inner circle diameter;

[0149] Step S205, using the area calculation formula to calculate the inner ring diameter and the single diameter, and output the core area;

[0150] Step S206, the area calculation formula is configured as: Where Sh is the core area, r is the single diameter, and l is the inner ring diameter;

[0151] Step S207, outputting specification qualification information and adhesion detection information, wherein the specification qualification information includes the core area.

[0152] Step S3, performing an adhesion test on the core based on the adhesion test information and the performance strength, and outputting a plurality of detection judgment information; performing a comprehensive analysis on the plurality of detection judgment information, and outputting quality judgment information based on the analysis results; Step S3 also includes the following sub-steps:

[0153] Step S301, when the adhesion detection information is received, the product of the shear strength and the core area is calculated and marked as the maximum shear bearing force; the product of the tensile strength and the core area is calculated and marked as the maximum tensile bearing force.

[0154] Step S302, using a shear tester to horizontally fix the core to obtain an initial edge;

[0155] Step S303, controlling the shear testing machine to apply a maximum shear force of a first scaling factor to the iron core;

[0156] Step S304, obtaining the analysis edge of the core after a unit time interval of the first increase multiple; comparing whether the analysis edge completely overlaps with the initial edge, if completely overlaps, outputting shear qualified information; if not completely overlaps, outputting shear unqualified information;

[0157] Step S305, using a shear tester to vertically fix the iron core to obtain an initial edge; controlling the shear tester to apply a maximum tensile force of a first scaling factor to the iron core;

[0158] Step S306, obtaining the analysis edge of the core after a unit time interval of the first increase multiple; comparing whether the analysis edge completely overlaps with the initial edge, if completely overlaps, outputting tensile qualified information; if not completely overlaps, outputting tensile unqualified information;

[0159] Step S307, when shear failure information or tensile failure information is received, output core failure information; when shear failure information and tensile failure information are received, output core failure information.

[0160] In the above embodiments of the present application, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0161] It should be understood by those skilled in the art that the embodiments of the present invention can be provided as methods, systems or computer program products. Therefore, the present invention can take the form of a complete hardware embodiment, a complete software embodiment or an embodiment combining software and hardware. Moreover, the present invention can take the form of a computer program product implemented on one or more computer-usable storage media containing computer-usable program codes. Among them, the storage medium can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (Static Random Access Memory, referred to as SRAM), electrically erasable programmable read-only memory (Electrically Erasable Programmable Read-Only Memory, referred to as EEPROM), erasable programmable read-only memory (Erasable Programmable Read Only Memory, referred to as EPROM), programmable read-only memory (Programmable Read-Only Memory, referred to as PROM), read-only memory (Read-Only Memory, referred to as ROM), magnetic memory, flash memory, disk or optical disk. These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0162] In the embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some communication interfaces, and the indirect coupling or communication connection of devices or units can be electrical, mechanical or other forms.

Claims

1. A control method for a self-adhesive stator and rotor core production and testing line, characterized in that: include: Conduct multiple adhesive performance tests on the adhesive, analyze the results of the multiple adhesive performance tests, and output performance strength based on the analysis results; The performance strength includes shear strength and tensile strength, and the iron core is cut to obtain a plurality of iron core samples having a first surface area; Conduct shear strength tests on adhesives; The average of all shear thresholds was calculated and labeled as mean shear force; Calculate the ratio of the average shear force to the first area and label it as shear strength; Conduct tensile strength tests on adhesives; The average of all stretch thresholds was calculated and labeled as the average stretch force; Calculate the ratio of the average tensile force to the first area, marked as tensile strength; Obtain a top view of the iron core, perform identification processing on the top view, and output specification parameters of the iron core; Analyze the specification parameters and output specification judgment information and adhesive detection information based on the analysis results; Use the area calculation formula to calculate the inner ring diameter and single diameter, and output the core area; The area calculation formula is configured as: Sh= ; Where Sh is the core area, r is the single diameter, and l is the inner ring diameter; Outputting specification qualification information and adhesion detection information, wherein the specification qualification information includes the core area; Perform adhesion detection on the core based on adhesion detection information and performance strength, and output multiple detection judgment information; Comprehensively analyze multiple detection judgment information and output quality judgment information based on the analysis results; Perform adhesion detection on the core based on adhesion detection information and performance strength, and output multiple detection judgment information; Comprehensively analyze multiple detection judgment information, and output quality judgment information based on the analysis results, including: When the adhesive test information is received, the product of the shear strength and the core area is calculated and marked as the maximum shear bearing capacity; Calculate the product of tensile strength and core area and mark it as maximum tensile force; The detection and judgment information includes shear qualified information, shear unqualified information, tensile qualified information and tensile unqualified information. Based on the adhesion detection information and performance strength, the core is subjected to adhesion detection, and multiple detection and judgment information are output; the multiple detection and judgment information are comprehensively analyzed, and the quality judgment information output based on the analysis results also includes: Use a shear tester to fix the core horizontally and obtain the initial edge; Controlling the shear testing machine to apply a maximum shear force of a first scaling factor to the iron core; After a unit time interval equal to the first increase multiple, the analysis edge of the core is obtained; Compare and analyze whether the edge completely overlaps with the initial edge. If it completely overlaps, output the qualified information of shearing; if it does not completely overlap, output the unqualified information of shearing; Use a shear tester to fix the core vertically and obtain the initial edge; Controlling the shear testing machine to apply a maximum tensile force of a first scaling factor to the iron core; After a unit time interval equal to the first increase multiple, the analysis edge of the core is obtained; Compare and analyze whether the edge completely overlaps with the initial edge. If it completely overlaps, output the tensile qualified information; if it does not completely overlap, output the tensile unqualified information.

2. The control method of a self-adhesive stator and rotor core production and testing line according to claim 1 is characterized in that: The shear strength test includes: For any two iron core samples with clean surfaces, the adhesive is evenly applied on the surface of any one of the iron core samples, and the two iron core samples are controlled to adhere to each other to obtain an adhered sample; The adhesion sample is fixed horizontally using a shear tester, wherein the shear tester is capable of applying equal and opposite forces to the core sample; Use a fixed camera to obtain a picture of the adhesion sample, obtain the edge of the adhesion sample through binarization processing, and mark it as the initial edge; Set the rate of increase of the force applied by the shear tester, and control the shear tester to apply equal, opposite and non-intersecting forces to the adhesion sample, which increases over time; The image of the adhesion sample is obtained at each unit time interval, and the edge of the adhesion sample is obtained by binarization processing and marked as the analysis edge; Set different colors for the initial edge and the analysis edge, superimpose the initial edge and the analysis edge in the same layer, compare whether the analysis edge completely overlaps with the initial edge, if it completely overlaps, delete the analysis edge, continue to obtain the analysis edge at each unit time interval, and compare whether the analysis edge completely overlaps with the initial edge; If they are not completely overlapped, the shear strength test is stopped, and the force currently applied by the shear tester is obtained and marked as the shear threshold; The shear strength test of the first number is repeatedly performed to obtain a shear threshold value of the first number plus one.

3. The control method of the self-adhesive stator and rotor core production and testing line according to claim 2 is characterized in that: The tensile strength test includes: Obtain a sticking sample, fix the sticking sample vertically using a shear tester, and obtain an initial edge of the sticking sample; Set the rate of increase of the force applied by the shear tester, and control the shear tester to apply equal and opposite forces to the adhesion sample, which increase over time and intersect with the extension line of the force; Obtain the analysis edge once per unit time interval, compare whether the analysis edge completely overlaps with the initial edge, if it completely overlaps, delete the analysis edge, continue to obtain the analysis edge per unit time interval, and compare whether the analysis edge completely overlaps with the initial edge; If they are not completely overlapped, the tensile strength test is stopped, and the force currently applied by the shear tester is obtained and marked as the tensile threshold; The tensile strength test of the first number is repeatedly performed to obtain a tensile threshold value of the first number plus one.

4. The control method of the self-adhesive stator and rotor core production and testing line according to claim 3 is characterized in that: The specification judgment information includes specification qualified information and specification unqualified information, obtaining a top view of the iron core, performing identification processing on the top view, and outputting specification parameters of the iron core; Analyze the specification parameters and output specification judgment information and adhesive detection information based on the analysis results, including: Obtain a top view of the iron core, perform binarization on the top view, and obtain an outer edge of the iron core and an inner edge of the iron core; Use any two straight lines passing through the geometric center of the core to intersect with the outer edge of the core and the inner edge of the core, calculate the distance between the two intersection points with the outer edge of the core, and mark them as single diameters; calculate the absolute value of the difference between the two single diameters and the preset diameter, and mark them as floating diameters; Compare the floating diameter with the preset floating value. When the floating diameter is greater than the preset floating value, output specification failure information. When the floating diameter is less than or equal to the preset floating value, the distance between the two intersection points with the inner edge of the core is calculated and marked as the inner ring diameter.

5. The control method of the self-adhesive stator and rotor core production and testing line according to claim 4 is characterized in that: The quality judgment information includes unqualified core information and qualified core information, and the core is subjected to adhesion detection based on the adhesion detection information and the performance strength, and a plurality of detection judgment information is output; Comprehensively analyze multiple detection judgment information, and output quality judgment information based on the analysis results, including: When receiving shear failure information or tensile failure information, outputting core failure information; When the shear qualified information and the tensile qualified information are received, the core qualified information is output.

6. A control system for a self-adhesive stator and rotor core production and testing line, used to implement a control method for a self-adhesive stator and rotor core production and testing line according to any one of claims 1 to 5, characterized in that: It includes an adhesive performance detection module, an iron core specification detection module and an iron core adhesive detection module; The adhesive performance detection module is used to perform multiple adhesive performance tests on the adhesive, analyze the results of the multiple adhesive performance tests, and output the performance strength based on the analysis results; The core specification detection module is used to obtain a top view of the core, identify and process the top view, and output specification parameters of the core; Analyze the specification parameters and output specification judgment information and adhesive detection information based on the analysis results; The core adhesion detection module is used to perform adhesion detection on the core based on adhesion detection information and performance strength, and output multiple detection judgment information; Comprehensively analyze multiple detection judgment information and output quality judgment information based on the analysis results.

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