Thread standard judgment method, device, equipment, medium and product

Abstract

The invention discloses a thread standard reaching judgment method, device and equipment, a medium and a product, and relates to the technical field of mechanical design of forming equipment, the method comprises the steps that nut taper analysis is conducted through a guide column model and a nut model which are obtained in advance, and a taper analysis result is obtained; and judging whether threads of the nut model meet use requirements or not according to the taper analysis result to obtain a judgment result. Therefore, the nut taper is analyzed through the guide pillar model and the nut model which are obtained in advance, and whether the thread of the nut model meets the use requirement or not is judged according to the obtained taper analysis result, so that thread breakage of the designed model is avoided, and the problem that the stress at the root of the thread is concentrated due to non-uniform stress of the taper design of the nut is solved. And the accuracy of thread standard judgment is improved, and the reliability of mechanical part design of forming equipment is improved.

Description

Technical Field

[0001] The present application relates to the technical field of mechanical design of molding equipment, and in particular to a method, device, equipment, medium and product for judging whether a thread is up to standard. Background Art

[0002] The threaded section of the guide pin is usually a part of the guide pin, which has threads on the outside or inside for connecting or fixing other parts. The threaded section of the guide pin is a standard thread tooth, while the threaded section of the nut is divided into standard thread teeth without taper and tapered gradual thread teeth. Since the appearance, thread tooth type and thread spacing of each nut are different, the suitable range of taper size of the nut thread section is different.

[0003] If the taper of the nut thread section is set too large, the gap between the guide pin and the front end thread of the nut will be too large, resulting in the guide pin front end thread being unable to contact the nut thread through deformation when subjected to the clamping force, causing the guide pin to break directly in the middle of the thread section. If the taper of the nut thread section is set too small, it will cause stress concentration problems on the guide pin front end thread.

[0004] The above contents are only used to assist in understanding the technical solution of the present application and do not constitute an admission that the above contents are prior art. Summary of the invention

[0005] The main purpose of this application is to provide a method, device, equipment, medium and product for judging whether a thread meets the standards, aiming to solve the technical problem that the uneven force of the taper design of the nut leads to stress concentration at the root of the thread, resulting in thread breakage.

[0006] To achieve the above purpose, the present application proposes a method for determining whether a thread meets the standard, the method comprising:

[0007] The nut taper analysis is performed by using the guide pin model and the nut model obtained in advance to obtain the taper analysis result;

[0008] It is determined whether the thread of the nut model meets the use requirements according to the taper analysis result to obtain a determination result.

[0009] In one embodiment, the step of performing nut taper analysis using the pre-acquired guide pin model and nut model to obtain a taper analysis result comprises:

[0010] Calculating the dimensions of the guide post model and the nut model to obtain the guide post dimensions and the nut dimensions;

[0011] Perform assembly analysis based on the guide column size and the nut size to obtain an assembly analysis result;

[0012] When the assembly analysis result is in compliance, assembling the guide post model and the nut model is simulated to obtain a guide post and nut assembly model;

[0013] A nut taper analysis is performed on the guide pin nut assembly model to obtain a taper analysis result.

[0014] In one embodiment, the step of determining whether the thread of the nut model meets the use requirements according to the taper analysis result and obtaining the determination result comprises:

[0015] If the taper analysis result is that the nut does not have a taper, a three-dimensional simulation analysis is performed on the guide pin nut assembly model by a preset molding device to obtain a first thread stress change curve of the guide pin model, and whether the thread of the nut model meets the use requirements is judged according to the first thread stress change curve to obtain a judgment result;

[0016] If the taper analysis result shows that the nut has a taper, a two-dimensional simulation analysis is performed on the guide pin nut assembly model to obtain the thread stress strength of the guide pin model, and based on the thread stress strength, it is judged whether the thread of the nut model meets the usage requirements to obtain a judgment result.

[0017] In one embodiment, the step of performing a three-dimensional simulation analysis on the guide pin nut assembly model by a preset molding device to obtain a first thread stress change curve of the guide pin model includes:

[0018] Loading the guide pin nut assembly model into the molding device to obtain a three-dimensional complete machine model;

[0019] Meshing the components of the three-dimensional whole machine model to obtain a first meshing result, and establishing a connection relationship between the components according to the first meshing result;

[0020] Refining the mesh of the meshing area between the guide pin model and the nut model in the division result to obtain a meshing area refinement result;

[0021] The whole machine model is simulated according to preset constraint conditions, and the first thread stress change curve of the guide pin model is obtained based on the connection relationship and meshing area refinement result analysis.

[0022] In one embodiment, the step of performing a two-dimensional simulation analysis on the guide post nut assembly model to obtain the thread stress strength of the guide post model comprises:

[0023] Extracting a two-dimensional section of the guide post nut assembly, and establishing a two-dimensional guide post nut assembly model based on the two-dimensional section, wherein the two-dimensional guide post nut assembly model includes a two-dimensional guide post section and a two-dimensional nut section;

[0024] A second thread stress change curve is calculated according to the two-dimensional guide column section and the two-dimensional nut section, and based on the second thread stress change curve, whether the thread in the two-dimensional guide column section is uniformly stressed is analyzed to obtain a stress analysis result;

[0025] When the stress analysis result shows that the thread stress of the two-dimensional guide pin section is uniform, a three-dimensional simulation analysis is performed on the guide pin nut assembly to obtain a third thread stress change curve of the guide pin model;

[0026] The thread stress intensity of the guide pin model is determined according to the second thread stress change curve and the third thread stress change curve.

[0027] In one embodiment, the step of calculating a second thread stress change curve according to the two-dimensional guide pin nut assembly model, and analyzing whether the threads in the two-dimensional guide pin section are uniformly stressed based on the second thread stress change curve to obtain the stress analysis result includes:

[0028] Meshing the two-dimensional guide post section and the two-dimensional nut section to obtain a second meshing result, and establishing a contact relationship between thread meshing surfaces of the two-dimensional guide post section and the two-dimensional nut section according to the second meshing result;

[0029] Performing a simulation operation on the two-dimensional guide pin nut assembly model, and extracting a second thread stress variation curve of the two-dimensional guide pin section based on the second division result and the contact relationship of the thread meshing surface;

[0030] Whether the thread of the two-dimensional guide column section is subjected to uniform stress is analyzed according to the second thread stress variation curve to obtain a stress analysis result.

[0031] In addition, to achieve the above purpose, the present application also proposes a thread compliance judgment device, the device comprising:

[0032] An analysis module, used for performing nut taper analysis through a pre-acquired guide pin model and a nut model to obtain a taper analysis result;

[0033] The judgment module is used to judge whether the thread of the nut model meets the use requirements according to the taper analysis result, and obtain a judgment result.

[0034] In addition, to achieve the above-mentioned purpose, the present application also proposes a thread standard judgment device, which includes: a memory, a processor, and a computer program stored in the memory and executable on the processor, and the computer program is configured to implement the steps of the thread standard judgment method as described above.

[0035] In addition, to achieve the above-mentioned purpose, the present application also proposes a storage medium, which is a computer-readable storage medium, and a computer program is stored on the storage medium. When the computer program is executed by the processor, the steps of the thread compliance judgment method described above are implemented.

[0036] In addition, to achieve the above-mentioned purpose, the present application also provides a computer program product, which includes a computer program, and when the computer program is executed by a processor, the steps of the thread compliance judgment method as described above are implemented.

[0037] One or more technical solutions proposed in this application have at least the following technical effects:

[0038] The embodiments of the present application propose a method, device, equipment, storage medium and computer program product for judging whether a thread is up to standard. The method analyzes the nut taper through the pre-acquired guide post model and nut model to obtain the taper analysis result; and judges whether the thread of the nut model meets the use requirements based on the taper analysis result to obtain the judgment result. Thus, the nut taper is analyzed through the pre-acquired guide post model and nut model, and the taper analysis result is obtained to judge whether the thread of the nut model meets the use requirements, thereby avoiding the occurrence of thread breakage in the designed model, solving the problem of uneven force in the taper design of the nut leading to stress concentration at the root of the thread, causing thread breakage, improving the accuracy of thread standard judgment, and improving the reliability of the design of mechanical components of the molding equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0040] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0041] Figure 1 A flow chart of the first embodiment of the thread standard determination method of the present application;

[0042] Figure 2 A flow chart of the second embodiment of the thread standard determination method provided in this application;

[0043] Figure 3 This is a schematic diagram of the whole machine model involved in the thread compliance judgment method of this application;

[0044] Figure 4This is a schematic diagram of a guide pin nut assembly model involved in the thread compliance judgment method of this application;

[0045] Figure 5 This is a schematic diagram of a 2D cross-section of a guide pin nut assembly model involved in the thread compliance judgment method of this application;

[0046] Figure 6 This is a schematic diagram of the meshing teeth of the guide pin and the nut involved in the thread compliance judgment method of this application;

[0047] Figure 7 A schematic diagram showing the comparison between the 2D simulation stress results and the 3D whole machine simulation stress results involved in the thread compliance judgment method of this application;

[0048] Figure 8 A schematic diagram of a simplified process of a method for determining thread compliance provided in Embodiment 2 of the present application;

[0049] Fig. 9 This is a schematic diagram of the module structure of the thread compliance judgment device according to an embodiment of the present application;

[0050] Fig.10 Schematic diagram of the device structure of the hardware operating environment involved in the thread compliance judgment method in the embodiment of the present application.

[0051] The purpose, features and advantages of this application will be further described in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0052] It should be understood that the specific embodiments described herein are only used to explain the technical solutions of the present application and are not used to limit the present application.

[0053] In order to better understand the technical solution of the present application, a detailed description will be given below in conjunction with the accompanying drawings and specific implementation methods.

[0054] The main solution of the embodiment of the present application is: perform size calculation on the guide post model and the nut model to obtain the guide post size and the nut size; perform assembly analysis based on the guide post size and the nut size to obtain the assembly analysis result; if the assembly analysis result is in compliance, perform assembly simulation on the guide post model and the nut model to obtain the guide post nut assembly model; perform nut taper analysis on the guide post nut assembly model to obtain the taper analysis result. If the taper analysis result is that the nut does not have a taper, a three-dimensional simulation analysis is performed on the guide post nut assembly model through a preset molding device to obtain the first thread stress change curve of the guide post model, and judge whether the thread of the nut model meets the use requirements based on the first thread stress change curve to obtain a judgment result; if the taper analysis result is that the nut has a taper, a two-dimensional simulation analysis is performed on the guide post nut assembly model to obtain the thread stress intensity of the guide post model, and judge whether the thread of the nut model meets the use requirements based on the thread stress intensity to obtain a judgment result. The guide pin nut assembly model is loaded into the molding equipment to obtain a three-dimensional whole machine model; the components of the three-dimensional whole machine model are meshed to obtain a first division result, and a connection relationship between the components is established based on the first division result; the meshing area between the guide pin model and the nut model in the division result is refined to obtain a meshing area refinement result; the whole machine model is simulated according to preset constraints, and a first thread stress change curve of the guide pin model is obtained based on the connection relationship and the meshing area refinement result analysis. A two-dimensional section of the guide post nut assembly is extracted, and a two-dimensional guide post nut assembly model is established based on the two-dimensional section, wherein the two-dimensional guide post nut assembly model includes a two-dimensional guide post section and a two-dimensional nut section; a second thread stress change curve is calculated based on the two-dimensional guide post section and the two-dimensional nut section, and based on the second thread stress change curve, whether the threads in the two-dimensional guide post section are uniformly stressed is analyzed to obtain a force analysis result; when the force analysis result shows that the threads in the two-dimensional guide post section are uniformly stressed, a three-dimensional simulation analysis is performed on the guide post nut assembly to obtain a third thread stress change curve of the guide post model; and the thread stress intensity of the guide post model is determined based on the second thread stress change curve and the third thread stress change curve. The two-dimensional guide pin section and the two-dimensional nut section are meshed to obtain a second meshing result, and a thread meshing surface contact relationship of the two-dimensional guide pin section and the two-dimensional nut section is established based on the second meshing result; the two-dimensional guide pin nut assembly model is simulated, and a second thread stress change curve of the two-dimensional guide pin section is extracted based on the second meshing result and the thread meshing surface contact relationship; whether the thread of the two-dimensional guide pin section is uniformly stressed is analyzed based on the second thread stress change curve to obtain a force analysis result.Thereby, the problem that the uneven force of the taper design of the nut leads to stress concentration at the root of the thread, causing the thread to break is solved, the judgment of whether the thread meets the standard is realized, the accuracy of the judgment of whether the thread meets the standard is improved, and the reliability of the design of the mechanical components of the molding equipment is improved. Based on the scheme of the present invention, a method for judging whether the thread meets the standard is designed based on the problem that in reality, the guide column thread section has standard thread teeth, while the nut thread section is divided into standard thread teeth without taper and gradual thread teeth with taper, and thread breakage is prone to occur when the design result is unreasonable. The effectiveness of the method for judging whether the thread meets the standard of the present invention is verified when judging whether the thread meets the standard. Finally, the accuracy of judging whether the thread meets the standard by the method of the present invention is significantly improved.

[0055] In this embodiment, for the convenience of description, the following description is made by taking the thread compliance judgment device as the execution body.

[0056] Since the guide pin thread section in the prior art is a standard thread tooth, and the nut thread section is divided into a standard thread tooth without taper and a tapered gradual thread tooth, the shape, thread tooth type, and thread spacing of each nut are different, resulting in a different suitable range of taper size for the nut thread section. If the taper of the nut thread section is set too large, the gap between the guide pin and the front end thread of the nut is too large, resulting in the front end thread of the guide pin being unable to contact the nut thread through deformation when subjected to the clamping force, thereby causing the guide pin to break directly in the middle of the thread section. If the taper of the nut thread section is set too small, it will cause stress concentration problems in the front end thread of the guide pin. Failure to analyze the design results at this time will affect the actual use effect.

[0057] The present application provides a solution that prioritizes the taper of the nut and uses different judgment methods to judge the design of the thread for different nuts, thereby providing users with better services.

[0058] As can be seen from the above embodiments, the present application performs nut taper analysis through the pre-acquired guide post model and nut model to obtain the taper analysis result; judges whether the thread of the nut model meets the use requirements based on the taper analysis result to obtain the judgment result. Thus, the nut taper is analyzed through the pre-acquired guide post model and nut model, and judges whether the thread of the nut model meets the use requirements based on the obtained taper analysis result, thereby avoiding thread breakage in the designed model, solving the problem of uneven force in the taper design of the nut leading to stress concentration at the root of the thread, causing thread breakage, improving the accuracy of thread compliance judgment, and improving the reliability of the design of mechanical components of the molding equipment.

[0059] It should be noted that the execution subject of this embodiment can be a computing service device with data processing, network communication and program running functions, such as a tablet computer, a personal computer, a mobile phone, etc., or an electronic device capable of realizing the above functions, a thread standard judgment device, etc. The following takes the thread standard judgment device as an example to illustrate this embodiment and the following embodiments.

[0060] Based on this, the embodiment of the present application provides a method for determining whether a thread meets the standard. Figure 1 , Figure 1 This is a flow chart of the first embodiment of the thread compliance judgment method of the present application.

[0061] In this embodiment, the thread compliance determination method includes steps S01 to S02:

[0062] Step S01, performing nut taper analysis using a pre-acquired guide pin model and a nut model to obtain a taper analysis result;

[0063] Before explaining the present embodiment, it should be clear that the threaded section of the guide post is usually a part of the guide post, which has threads on the outside or inside for connecting or fixing other parts. The guide post threaded section is a standard thread tooth, and the nut threaded section is divided into a standard thread tooth without taper and a tapered gradual thread tooth. Since the shape, thread tooth type and thread spacing of each nut are different, the suitable range of the taper size of the nut threaded section is different. If the taper of the nut threaded section is set too large, the gap between the guide post and the front end thread of the nut is too large, resulting in the front end thread of the guide post being unable to contact the nut thread through deformation when subjected to the clamping force, thereby causing the guide post to break directly in the middle of the threaded section. If the taper of the nut threaded section is set too small, it will cause stress concentration problems in the front end thread of the guide post.

[0064] Therefore, in the design of the guide pin and the nut, it is critical to perform stress analysis on them, and because of whether the nut has a taper, the specific analysis method used is also different. Therefore, in this embodiment, the nut taper analysis is performed through the pre-acquired guide pin model and nut model to analyze whether the current nut model includes a taper, and obtain the taper stress analysis result. Among them, the guide pin model and the nut model in this embodiment are modeled according to the actual thread shape of the guide pin and the nut thread.

[0065] Step S02, judging whether the thread of the nut model meets the use requirements according to the taper analysis result, and obtaining a judgment result.

[0066] After obtaining the taper analysis results of the nut thread, specific usage requirements can be judged to determine whether each thread is evenly stressed. In this embodiment, corresponding judgments are made based on whether the nut thread has taper or not, and corresponding improvement strategies are proposed.

[0067] Through the above scheme, on the one hand, more accurate stress results of the guide pin and nut can be obtained, and on the other hand, the optimal thread taper of the nut can be obtained, so that the thread meshing section between the guide pin and the nut is evenly stressed, avoiding the problem of breakage of the guide pin and the nut during use after they are designed.

[0068] Specifically, the above step S01, performing nut taper analysis by using the pre-acquired guide pin model and nut model, and obtaining the taper analysis result comprises:

[0069] Step S011, calculating the dimensions of the guide post model and the nut model to obtain the guide post dimensions and the nut dimensions;

[0070] Step S012, performing assembly analysis based on the guide column size and the nut size to obtain an assembly analysis result;

[0071] Step S013, when the assembly analysis result is in compliance, assembling the guide post model and the nut model is simulated to obtain a guide post and nut assembly model;

[0072] Step S014, performing nut taper analysis on the guide pin nut assembly model to obtain a taper analysis result.

[0073] Model the threads of the guide pin and nut according to the real thread shape, and then assemble the guide pin and nut according to the actual position. The specific steps are as follows:

[0074] The modeling operation of this embodiment is applicable to common CAD software (such as SolidWorks, AutoCAD or Fusion360, etc.):

[0075] First, determine the parameters of the thread. In order to correctly model the thread, the following parameters need to be clarified: thread type (such as metric thread, imperial thread, etc.), thread specification (such as M10x1.5, metric thread, diameter 10mm, pitch 1.5mm), thread accuracy (usually ordinary, precision, ultra-precision, etc., which affects the cutting process and appearance of the thread), and the size of the guide pin and nut (such as the diameter and length of the guide pin, the outer diameter, inner diameter, length, etc. of the nut);

[0076] Then, the thread modeling is performed, including the guide pin thread modeling, that is, creating the basic geometry of the guide pin (using the cylinder command to create the cylinder of the guide pin, setting the appropriate diameter (such as the outer diameter) and length (such as the total length of the guide pin)), adding threads (most CAD software provides thread commands, which can directly generate external threads. Select the appropriate thread standard (such as the metric ISO standard), select the thread starting point on the outer surface of the guide pin, set the thread type, pitch and number, and generate the thread). If the software does not support automatic thread generation, you can use the "Spiral" command to draw the thread line, and then use the "Sweep" function to scan the thread section along the spiral path to obtain the thread;

[0077] Then, the nut thread modeling is performed, including creating the basic geometry of the nut (drawing a suitable hexagon or circle (designed according to the shape of the nut), and then stretching it to a certain length as the shell of the nut), internal thread modeling (using the internal thread command or manually adding internal threads, selecting the appropriate thread type (such as M10x1.5), and then adding threads on the inner surface of the nut). If modeling is done manually, first use the spiral command to draw a path for the internal thread, and then use the "sweep" function to scan and generate the thread profile along the spiral path;

[0078] After the guide pin model and the nut model are established, they can be assembled. You need to define the matching mode first, determine the matching mode of the guide pin and the nut (such as thread matching, clearance matching, etc.), ensure that the nut can be correctly screwed into the guide pin, and then assemble the guide pin model and the nut model, that is, use the assembly function in the CAD software to place the nut and the guide pin in the correct position, and then select the thread matching to ensure that the internal and external threads of the nut and the guide pin are correctly connected. If you are using SolidWorks, you can use the "Mate" function (Mate) to define the relative position of the nut and the guide pin, and finally use "thread matching" or "rotation matching" to simulate the rotation of the nut on the guide pin;

[0079] In order to ensure the accuracy of the guide pin nut assembly model, it is also necessary to check and adjust, including checking the fit and movement (make sure the fit between the nut and the guide pin is normal, you can check the assembly effect by rotating the nut to ensure there is no interference), dimensioning and tolerance checking (do dimensioning and check the accuracy of the thread as needed)

[0080] Finally, complete and save the model. After completing the thread modeling and assembly, save all files and generate engineering drawings or 3D renderings for subsequent use.

[0081] After obtaining the guide pin model assembly model, the nut taper analysis can be performed to determine whether the current nut has a taper.

[0082] The above scheme can complete the modeling of the guide pin model and the nut model, and simulate the assembly thereof to obtain the guide pin nut assembly model, thereby analyzing the taper of the nut and obtaining the taper analysis result of whether the nut has a taper.

[0083] More specifically, in the above step S02, judging whether the thread of the nut model meets the use requirements according to the taper analysis result, the step of obtaining the judgment result includes:

[0084] Step S021, if the taper analysis result is that the nut does not have a taper, a three-dimensional simulation analysis is performed on the guide pin nut assembly model by a preset molding device to obtain a first thread stress change curve of the guide pin model, and whether the thread of the nut model meets the use requirements is judged according to the first thread stress change curve to obtain a judgment result;

[0085] Step S022, if the taper analysis result shows that the nut has a taper, a two-dimensional simulation analysis is performed on the guide pin nut assembly model to obtain the thread stress strength of the guide pin model, and based on the thread stress strength, it is judged whether the thread of the nut model meets the usage requirements to obtain a judgment result.

[0086] In the above-mentioned embodiments, it has been learned that there are two taper analysis results for the nut, namely, the nut has no taper and the nut has taper. According to different results, different analysis methods are used to judge the use requirements. When the taper analysis result is that the nut has no taper, a three-dimensional simulation analysis is performed on the guide pin nut assembly model by a molding device to obtain a thread stress change curve of the guide pin model. Then, according to the obtained thread stress change curve, it is judged whether the thread of the nut model meets the actual use requirements to obtain a judgment result.

[0087] When the taper analysis result shows that the nut has a taper, the guide pin nut assembly model is simulated and analyzed to obtain the thread stress strength of the guide pin model. Finally, based on the thread stress strength, it is judged whether the thread of the nut model meets the actual usage requirements to obtain a judgment result.

[0088] By judging the usage requirements through the above two methods, it can be ensured that nuts in different situations are reasonably judged, avoiding the thread from breaking due to substandard design, which affects the actual use of customers.

[0089] This embodiment uses the above scheme to analyze the nut taper through the pre-acquired guide post model and nut model, and obtain the taper analysis result; judge whether the thread of the nut model meets the use requirements according to the taper analysis result, and obtain the judgment result. Therefore, the nut taper is analyzed through the pre-acquired guide post model and nut model, and judge whether the thread of the nut model meets the use requirements according to the obtained taper analysis result, and through the three-dimensional simulation analysis of nut schemes with different tapers, the most suitable nut scheme can be found, so that the meshing thread sections of the guide post and the nut are evenly stressed, avoiding thread breakage in the designed model, solving the problem that the uneven stress of the nut taper design leads to stress concentration at the root of the thread, causing thread breakage, improving the accuracy of thread compliance judgment, and improving the reliability of the design of mechanical components of the molding equipment.

[0090] Based on the first embodiment of the present application, in the second embodiment of the present application, the same or similar contents as those in the above-mentioned embodiment 1 can be referred to the above introduction, and will not be repeated in the following. Figure 2 In step S021, a three-dimensional simulation analysis is performed on the guide pin nut assembly model by a preset molding device to obtain a first thread stress change curve of the guide pin model. The method includes steps S0211 to S0214:

[0091] Step S0211, loading the guide pin nut assembly model into the molding device to obtain a three-dimensional complete machine model;

[0092] Step S0212, meshing the components of the three-dimensional whole machine model to obtain a first meshing result, and establishing a connection relationship between the components according to the first meshing result;

[0093] Step S0213, performing mesh refinement on the meshing area between the guide pin model and the nut model in the division result to obtain a meshing area refinement result;

[0094] Step S0214, simulating the whole machine model according to preset constraint conditions, and obtaining the first thread stress change curve of the guide pin model based on the connection relationship and meshing area refinement result analysis.

[0095] It should be clear that the complete equipment in this embodiment includes specific models of the injection molding machine and the die-casting machine, and the above-mentioned injection molding machine and the die-casting machine include key parts (three major plates, guide pillars, nuts, frames, and molds). The key parts (including three major plates, guide pillars, nuts, frames, and molds) are assembled to obtain the following: Figure 3 The whole machine model shown in the figure is constructed, and a 3D whole machine simulation analysis is performed on the whole machine model. The specific steps include:

[0096] Mesh each component of the whole machine model, refine the mesh of the threaded meshing area between the guide pin and the nut, assign corresponding material parameter properties to each component, and establish the connection relationship between each component, including binding connection, contact and other connection relationships;

[0097] Then, a fixed constraint is applied to the frame, and a clamping force is applied to the whole machine model to press the mold tightly;

[0098] Finally, after simulation calculation, the stress value of each thread root of the guide pin and nut is extracted, and the stress change curve is drawn.

[0099] Through the above scheme, the first thread stress change curve of the guide column model can be obtained through a specific three-dimensional analysis method, which provides a more accurate basis for subsequent use demand judgment and avoids thread breakage during subsequent use.

[0100] Specifically, in the above embodiment, the step S022 of performing a two-dimensional simulation analysis on the guide post nut assembly model to obtain the thread stress strength of the guide post model includes:

[0101] Step S0221, extracting a two-dimensional section of the guide post nut assembly, and establishing a two-dimensional guide post nut assembly model according to the two-dimensional section, wherein the two-dimensional guide post nut assembly model includes a two-dimensional guide post section and a two-dimensional nut section;

[0102] Step S0222, calculating a second thread stress change curve according to the two-dimensional guide column section and the two-dimensional nut section, and analyzing whether the thread in the two-dimensional guide column section is uniformly stressed based on the second thread stress change curve to obtain a stress analysis result;

[0103] Step S0223, when the force analysis result shows that the thread force of the two-dimensional guide pillar section is uniform, a three-dimensional simulation analysis is performed on the guide pillar nut assembly to obtain a third thread stress change curve of the guide pillar model;

[0104] Step S0224, determining the thread stress intensity of the guide pin model according to the second thread stress change curve and the third thread stress change curve.

[0105] If the nut is a tapered nut, it is necessary to perform a two-dimensional analysis on it first:

[0106] In this embodiment, Figure 4 Assemble the guide pin and nut according to the actual position as shown, ensuring the meshing relationship between the thread teeth, and then Figure 5 As shown, along the symmetry axis of the guide pin, the 2D section of the guide pin and nut assembly is extracted, and a 2D simulation model of the guide pin and nut is established;

[0107] Then, the force uniformity analysis is performed through the guide column 2D simulation model and the nut 2D simulation model to obtain the analysis result of whether the current thread is uniformly stressed. In order to make the final design result reasonable, in this embodiment, if the analysis result of uneven force on each thread is obtained, the taper size of the nut is adjusted, and the 2D section of the guide column is re-extracted for 2D simulation analysis, and this cycle is repeated to finally ensure that each thread of the guide column and the nut is uniformly stressed.

[0108] After ensuring that each thread of the guide pin and nut is evenly stressed, a complete machine simulation model of the injection molding machine\die-casting machine is established, retaining the clamping system, mold, and key mechanical components of the frame to ensure that the threads of the guide pin and nut are established according to the real thread shape, and then a simulation analysis of the complete machine model in the clamping state is performed;

[0109] Then, if Figure 6 As shown in the figure, the stress value of each thread tooth of the guide pin and nut in the whole machine simulation is obtained, and the trend of the 2D simulation result is checked to see whether it is consistent with the whole machine simulation result. Figure 7 If the stress trend does not match the analysis curve shown in the figure, you need to adjust the angle of the 2D section, re-cut and extract the guide pin along the axial direction of the guide pin, and then perform 2D simulation analysis. This cycle is repeated to ensure that the threads of the guide pin and the nut are evenly stressed in both the 2D simulation and the whole machine simulation.

[0110] Finally, perform thread stress strength analysis to determine whether the thread stress meets the design requirements. If not, adjust the thread shape and re-analyze. If it meets the requirements, the threads of the guide pin and nut meet the standards.

[0111] More specifically, in the above step S0222, the second thread stress change curve is calculated according to the two-dimensional guide pin nut assembly model, and whether the thread in the two-dimensional guide pin section is uniformly stressed is analyzed based on the second thread stress change curve, and the step of obtaining the stress analysis result includes:

[0112] Step S02221, meshing the two-dimensional guide post section and the two-dimensional nut section to obtain a second meshing result, and establishing a contact relationship between thread meshing surfaces of the two-dimensional guide post section and the two-dimensional nut section according to the second meshing result;

[0113] Step S02222, simulating the two-dimensional guide pin nut assembly model, and extracting a second thread stress variation curve of the two-dimensional guide pin section based on the second division result and the contact relationship of the thread meshing surface;

[0114] Step S02223, analyzing whether the thread of the two-dimensional guide column section is uniformly stressed according to the second thread stress change curve, and obtaining a stress analysis result.

[0115] After completing the simulation operations such as meshing, assigning material properties, applying constraints, and loading loads, perform 2D simulation analysis on the guide pins and nuts;

[0116] First, the stress value of each thread tooth in the guide pin and the nut is extracted, and the stress change curve is drawn to determine whether each thread is evenly stressed. In this embodiment, if each thread is unevenly stressed, the taper size of the nut is adjusted, and the 2D section of the guide pin is re-extracted for 2D simulation analysis. This cycle is repeated to ultimately ensure that each thread of the guide pin and the nut is evenly stressed.

[0117] The specific force analysis steps can be described as follows:

[0118] First, obtain the thread stress change curve. In the simulation analysis, the thread stress change curve calculated by finite element analysis (FEA) reflects the stress distribution of the thread during the loading process. This curve is mainly determined by the following factors: thread contact pressure (during the thread meshing process, the stress generated on the contact surface will change due to the pressure between the nut and the guide pin), friction (friction will affect the stress distribution of the thread, especially under high pressure or fast rotation) and preload (the preload applied during the nut tightening process will affect the thread stress). The thread stress change curve usually shows the stress distribution change along the thread meshing surface or a certain two-dimensional section, reflecting the peak value, fluctuation and position of the stress;

[0119] Then, analyze whether the thread is evenly stressed. When analyzing whether the thread is evenly stressed, the main focus is on the uniformity of stress distribution, that is, whether there is obvious concentration or unevenness of stress along the thread section;

[0120] It is necessary to go through (1) identification of stress concentration areas: From the stress change curve of the second thread, it can be observed whether there is obvious stress concentration phenomenon. Stress concentration is usually manifested as the stress in certain positions being significantly higher than that in other parts. These high stress areas may be caused by geometric inconsistency (such as insufficient thread accuracy, defects in the thread shape of the guide pin and the nut, etc.), uneven contact (during the thread engagement process, due to factors such as uneven friction and uneven contact surface, the local area is subjected to higher stress) and uneven load distribution (such as uneven tightening force of the nut, or uneven distribution of applied external loads, which may cause excessive stress at certain threads). (2) Determine the uniformity of thread stress. In order to determine whether the thread is uniformly stressed, the following indicators can be analyzed: stress fluctuation (observe the fluctuation amplitude of the second thread stress change curve. If the stress fluctuation is large, it may indicate that the thread is unevenly stressed), maximum stress position (in the stress curve, find the position where the maximum stress occurs. If the maximum stress appears in a local area and there is no corresponding balance or compensation, it should be It is believed that the area is unevenly stressed) and the average stress value (calculate the average stress value of the entire thread area and compare it with the local maximum stress value. If the local stress is much higher than the average stress, it indicates uneven stress). Finally, (3) influencing factor analysis: by analyzing the boundary conditions, load application methods, friction coefficient and other factors introduced in the simulation model, the uneven stress distribution is further understood. Among them, the influence of thread geometry (if there are manufacturing defects or design problems in the thread geometry, it may cause uneven contact surfaces, thereby causing stress concentration), improper assembly (for example, uneven tightening force of the nut may cause certain thread areas to bear greater loads) and external load distribution (whether the external load (such as axial load, radial load, etc.) is evenly applied to the entire nut will also affect the uniformity of stress) are specific influencing factors.

[0121] The specific force analysis results can be obtained through a detailed analysis of the thread stress change curve, and the following force analysis results are obtained:

[0122] Whether the thread is evenly stressed, if the stress curve is smooth and fluctuates slightly, and there is no local concentration in the maximum stress area, it can be judged that the thread is relatively evenly stressed. If there is obvious stress concentration, especially if the stress in some thread areas is much higher than that in other areas, it indicates that the thread is unevenly stressed.

[0123] This embodiment adopts the above scheme, specifically by loading the guide pin nut assembly model into the molding equipment to obtain a three-dimensional whole machine model; meshing the components of the three-dimensional whole machine model to obtain a first division result, and establishing the connection relationship of the components according to the first division result; meshing the meshing area of ​​the guide pin model and the nut model in the division result to obtain a meshing area refinement result; simulating the whole machine model according to the preset constraint conditions, and obtaining the first thread stress change curve of the guide pin model based on the connection relationship and the meshing area refinement result analysis. Thus, the nut taper is analyzed by the pre-acquired guide pin model and nut model, and it is judged whether the thread of the nut model meets the use requirements and whether the thread is uniformly stressed according to the obtained taper analysis results, thereby avoiding the thread fracture of the designed model, solving the problem that the uneven stress of the taper design of the nut leads to stress concentration at the root of the thread, causing thread fracture, improving the accuracy of thread compliance judgment, and improving the reliability of the design of mechanical components of the molding equipment.

[0124] For example, in order to help understand the implementation process of the thread standard determination method obtained by combining this embodiment with the above-mentioned embodiment 1, please refer to Figure 8 , Figure 8 A brief flow chart of a thread compliance judgment method is provided, specifically:

[0125] Firstly, the guide pin and nut models are assembled to obtain a guide pin and nut assembly model;

[0126] Then, analyze whether the nut in the guide pin model assembly has a taper;

[0127] Then, for the model of the nut without taper, a 3D whole machine simulation analysis is performed to obtain the stress result of the current thread, and a uniformity analysis is performed based on the obtained stress result. If the stress is uniform and the strength is satisfactory, the output judgment result is that the current involvement is reasonable. If the stress of the current thread is uneven or the strength is not satisfactory, the taper of the nut is adjusted, and a subsequent 2D simulation analysis is performed on it until its stress result is consistent and the strength meets the actual use requirements;

[0128] Then, for the model with a taper nut, a 2D simulation analysis is performed on it, the guide pin nut assembly model is converted into a 2D form, and a stress analysis is performed on it. When the stress analysis results are uniform, a 3D whole machine simulation verification is performed until the stress results are consistent and the strength meets the use requirements, and the judgment result is output as satisfied. Among them, when the stress results are not consistent, the position of the 2D section is adjusted, and multiple 2D simulation analyses are performed. When the strength analysis is not satisfactory, the thread shape is adjusted again until it meets the actual use requirements.

[0129] It should be noted that the above examples are only used to understand the present application and do not constitute a limitation on the thread compliance judgment method of the present application. More simple transformations based on this technical concept are all within the scope of protection of the present application.

[0130] This application also provides a thread standard judgment device, please refer to Fig. 9 , the thread standard determination device comprises:

[0131] An analysis module 10 is used to perform nut taper analysis using a pre-acquired guide pin model and a nut model to obtain a taper analysis result;

[0132] The judgment module 20 is used to judge whether the thread of the nut model meets the use requirements according to the taper analysis result, and obtain a judgment result.

[0133] The thread standard determination device provided by the present application adopts the thread standard determination method in the above-mentioned embodiment, which can solve the technical problem that the uneven force of the taper design of the nut leads to stress concentration at the root of the thread, causing thread breakage. Compared with the prior art, the beneficial effects of the thread standard determination device provided by the present application are the same as the beneficial effects of the thread standard determination method provided by the above-mentioned embodiment, and the other technical features of the thread standard determination device are the same as the features disclosed in the above-mentioned embodiment method, which will not be repeated here.

[0134] The present application provides a thread standard determination device, which includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the thread standard determination method in the above-mentioned embodiment one.

[0135] Reference below Fig.10 , which shows a schematic diagram of the structure of a thread standard determination device suitable for implementing the embodiment of the present application. The thread standard determination device in the embodiment of the present application may include but is not limited to mobile terminals such as mobile phones, laptop computers, digital broadcast receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Descriptions), PMPs (Portable Media Players), vehicle-mounted terminals (such as vehicle-mounted navigation terminals), etc., and fixed terminals such as digital TVs, desktop computers, etc. Fig.10 The thread compliance judgment device shown is merely an example and should not bring any limitation to the functions and scope of use of the embodiments of the present application.

[0136] like Fig.10 As shown, the thread standard determination device may include a processing device 1001 (e.g., a central processing unit, a graphics processing unit, etc.), which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM: Read Only Memory) 1002 or a program loaded from a storage device 1003 to a random access memory (RAM: Random Access Memory) 1004. In RAM1004, various programs and data required for the operation of the thread standard determination device are also stored. The processing device 1001, ROM1002, and RAM1004 are connected to each other through a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus. Generally, the following systems can be connected to the I / O interface 1006: an input device 1007 including, for example, a touch screen, a touchpad, a keyboard, a mouse, an image sensor, a microphone, an accelerometer, a gyroscope, etc.; an output device 1008 including, for example, a liquid crystal display (LCD: Liquid Crystal Display), a speaker, a vibrator, etc.; a storage device 1003 including, for example, a magnetic tape, a hard disk, etc.; and a communication device 1009. The communication device 1009 can allow the thread standard determination device to communicate with other devices wirelessly or by wire to exchange data. Although the figure shows a thread standard determination device with various systems, it should be understood that it is not required to implement or have all the systems shown. More or fewer systems can be implemented or provided instead.

[0137] In particular, according to the embodiments disclosed in the present application, the process described above with reference to the flowchart can be implemented as a computer software program. For example, the embodiments disclosed in the present application include a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program includes a program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network through a communication device, or installed from a storage device 1003, or installed from a ROM 1002. When the computer program is executed by the processing device 1001, the above-mentioned functions defined in the method of the embodiment disclosed in the present application are executed.

[0138] The thread standard judgment device provided by the present application adopts the thread standard judgment method in the above embodiment, which can solve the technical problem that the uneven force of the taper design of the nut leads to stress concentration at the root of the thread, causing thread breakage. Compared with the prior art, the beneficial effects of the thread standard judgment device provided by the present application are the same as the beneficial effects of the thread standard judgment method provided by the above embodiment, and the other technical features of the thread standard judgment device are the same as the features disclosed in the method of the previous embodiment, which will not be repeated here.

[0139] It should be understood that the various parts disclosed in this application can be implemented by hardware, software, firmware or a combination thereof. In the description of the above embodiments, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0140] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

[0141] The present application provides a computer-readable storage medium having computer-readable program instructions (ie, computer programs) stored thereon, and the computer-readable program instructions are used to execute the thread compliance judgment method in the above-mentioned embodiment.

[0142] The computer-readable storage medium provided in the present application may be, for example, a USB flash drive, but is not limited to electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, systems or devices, or any combination of the above. More specific examples of computer-readable storage media may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In this embodiment, the computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in combination with an instruction execution system, system or device. The program code contained on the computer-readable storage medium may be transmitted using any appropriate medium, including but not limited to: wires, optical cables, RF (Radio Frequency), etc., or any suitable combination of the above.

[0143] The computer-readable storage medium may be included in the thread standard determination device; or may exist independently without being assembled into the thread standard determination device.

[0144] The above-mentioned computer-readable storage medium carries one or more programs. When the above-mentioned one or more programs are executed by the thread standard judgment device, the thread standard judgment device: performs nut taper analysis through the pre-acquired guide pin model and nut model to obtain the taper analysis result; judges whether the thread of the nut model meets the usage requirements based on the taper analysis result to obtain a judgment result.

[0145] Computer program code for performing the operations of the present application may be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, C++, and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, as a separate software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0146] The flow chart and block diagram in the accompanying drawings illustrate the possible architecture, function and operation of the system, method and computer program product according to various embodiments of the present application. In this regard, each square box in the flow chart or block diagram can represent a module, a program segment or a part of a code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the square box can also occur in a sequence different from that marked in the accompanying drawings. For example, two square boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each square box in the block diagram and / or flow chart, and the combination of the square boxes in the block diagram and / or flow chart can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0147] The modules involved in the embodiments described in this application may be implemented by software or hardware, wherein the name of the module does not constitute a limitation on the unit itself in some cases.

[0148] The readable storage medium provided by the present application is a computer-readable storage medium, which stores computer-readable program instructions (i.e., computer programs) for executing the above-mentioned thread compliance judgment method, and can solve the technical problem that the uneven force of the taper design of the nut leads to stress concentration at the root of the thread, causing thread breakage. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided by the present application are the same as the beneficial effects of the thread compliance judgment method provided by the above-mentioned embodiment, and will not be repeated here.

[0149] The present application also provides a computer program product, including a computer program, which implements the steps of the above-mentioned thread compliance judgment method when executed by a processor.

[0150] The computer program product provided by the present application can solve the technical problem that the uneven force of the taper design of the nut leads to stress concentration at the root of the thread, causing thread breakage. Compared with the prior art, the beneficial effects of the computer program product provided by the present application are the same as the beneficial effects of the thread compliance judgment method provided by the above embodiment, and will not be repeated here.

[0151] The above descriptions are only some embodiments of the present application, and are not intended to limit the patent scope of the present application. All equivalent structural changes made using the contents of the present application specification and drawings under the technical concept of the present application, or direct / indirect applications in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A method for determining whether a thread meets the standard, characterized in that: The method comprises: The nut taper analysis is performed by using the guide pin model and the nut model obtained in advance to obtain the taper analysis result; It is determined whether the thread of the nut model meets the use requirements according to the taper analysis result to obtain a determination result.

2. The method according to claim 1, characterized in that The step of performing nut taper analysis by using the pre-acquired guide pin model and nut model to obtain the taper analysis result comprises: Calculating the dimensions of the guide post model and the nut model to obtain the guide post dimensions and the nut dimensions; Perform assembly analysis based on the guide column size and the nut size to obtain an assembly analysis result; When the assembly analysis result is in compliance, assembling the guide post model and the nut model is simulated to obtain a guide post and nut assembly model; A nut taper analysis is performed on the guide pin nut assembly model to obtain a taper analysis result.

3. The method according to claim 2, characterized in that The step of judging whether the thread of the nut model meets the use requirements according to the taper analysis result and obtaining the judgment result comprises: If the taper analysis result is that the nut does not have a taper, a three-dimensional simulation analysis is performed on the guide pin nut assembly model by a preset molding device to obtain a first thread stress change curve of the guide pin model, and whether the thread of the nut model meets the use requirements is judged according to the first thread stress change curve to obtain a judgment result; If the taper analysis result shows that the nut has a taper, a two-dimensional simulation analysis is performed on the guide pin nut assembly model to obtain the thread stress strength of the guide pin model, and based on the thread stress strength, it is judged whether the thread of the nut model meets the usage requirements to obtain a judgment result.

4. The method according to claim 3, characterized in that The step of performing a three-dimensional simulation analysis on the guide pin nut assembly model by a preset molding device to obtain a first thread stress change curve of the guide pin model comprises: Loading the guide pin nut assembly model into the molding device to obtain a three-dimensional complete machine model; Meshing the components of the three-dimensional whole machine model to obtain a first meshing result, and establishing a connection relationship between the components according to the first meshing result; Refining the mesh of the meshing area between the guide pin model and the nut model in the division result to obtain a meshing area refinement result; The whole machine model is simulated according to preset constraint conditions, and the first thread stress change curve of the guide pin model is obtained based on the connection relationship and meshing area refinement result analysis.

5. The method according to claim 3, characterized in that The step of performing a two-dimensional simulation analysis on the guide pin nut assembly model to obtain the thread stress strength of the guide pin model comprises: Extracting a two-dimensional section of the guide post nut assembly, and establishing a two-dimensional guide post nut assembly model based on the two-dimensional section, wherein the two-dimensional guide post nut assembly model includes a two-dimensional guide post section and a two-dimensional nut section; A second thread stress change curve is calculated according to the two-dimensional guide column section and the two-dimensional nut section, and based on the second thread stress change curve, whether the thread in the two-dimensional guide column section is uniformly stressed is analyzed to obtain a stress analysis result; When the stress analysis result shows that the thread stress of the two-dimensional guide pin section is uniform, a three-dimensional simulation analysis is performed on the guide pin nut assembly to obtain a third thread stress change curve of the guide pin model; The thread stress intensity of the guide pin model is determined according to the second thread stress change curve and the third thread stress change curve.

6. The method according to claim 5, characterized in that The step of calculating a second thread stress change curve according to the two-dimensional guide pin nut assembly model, and analyzing whether the threads in the two-dimensional guide pin section are uniformly stressed based on the second thread stress change curve to obtain a stress analysis result comprises: Meshing the two-dimensional guide post section and the two-dimensional nut section to obtain a second meshing result, and establishing a contact relationship between thread meshing surfaces of the two-dimensional guide post section and the two-dimensional nut section according to the second meshing result; Performing a simulation operation on the two-dimensional guide pin nut assembly model, and extracting a second thread stress variation curve of the two-dimensional guide pin section based on the second division result and the contact relationship of the thread meshing surface; Whether the thread of the two-dimensional guide column section is subjected to uniform stress is analyzed according to the second thread stress variation curve to obtain a stress analysis result.

7. A thread standard determination device, characterized in that: The device comprises: An analysis module, used for performing nut taper analysis using a pre-acquired guide pin model and a nut model to obtain a taper analysis result; The judgment module is used to judge whether the thread of the nut model meets the use requirements according to the taper analysis result, and obtain a judgment result.

8. A thread standard judgment device, characterized in that: The device comprises: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program is configured to implement the steps of the thread compliance determination method according to any one of claims 1 to 6.

9. A storage medium, characterized in that: The storage medium is a computer-readable storage medium, and a computer program is stored on the storage medium. When the computer program is executed by a processor, the steps of the thread compliance judgment method according to any one of claims 1 to 6 are implemented.

10. A computer program product, characterized in that The computer program product comprises a computer program, and when the computer program is executed by a processor, the steps of the thread compliance determination method according to any one of claims 1 to 6 are implemented.

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