A sleeve design method for stainless steel wire stretching

Abstract

The present invention relates to a sleeve design method for stainless steel wire stretching, comprising: importing a thick steel wire sub-component model and the material properties of the stainless steel wire into a finite element simulation analysis software; adding binding constraints and loads to a plurality of thick steel wire sub-component models, and stretching the thick steel wire model; meshing the thick steel wire model, and simulating and analyzing the stretching of the thick steel wire model; and obtaining a sleeve generatrix equation corresponding to the stretching simulation result. The beneficial effect of the present invention is that the present invention provides a sleeve design method for stainless steel wire stretching, calculates the sleeve generatrix equation required for stretching the stainless steel wire, and thus designs the sleeve required in the process of stretching a thick stainless steel wire of a known diameter to a thin stainless steel wire of a specified diameter, designs the sleeve of the key parts required for the production process, and makes the production process possible.

Description

Technical Field

[0001] The invention relates to the technical field of steel wire drawing, and more specifically, to a sleeve film design method for stainless steel wire drawing. Background Art

[0002] At present, with the continuous intelligentization of products in life, there is a large and urgent demand for fine stainless steel wire in the fields of electrical appliances, auto parts, transportation equipment, precision instruments, etc. Therefore, the intelligent automation of stainless steel wire drawing came into being.

[0003] In the process of stainless steel wire stretching and thinning to achieve intelligent automation, the stainless steel wire needs to pass through the sleeve. The cross-sectional shape of one end of the sleeve is the cross-sectional shape of the stainless steel wire before stretching, and the shape of the other end is the cross-sectional shape of the stainless steel wire after stretching the stainless steel wire to the desired diameter. As a key part of the new invention, the shape of the sleeve is crucial in the stainless steel wire stretching process, so its design becomes a core issue that needs to be urgently solved in the stretching process. Summary of the invention

[0004] The purpose of the invention is to address the deficiencies of the prior art and to propose a sleeve design method for stainless steel wire stretching.

[0005] In a first aspect, a method for designing a sleeve for stretching a stainless steel wire is provided, comprising:

[0006] Step 1, obtaining several thick steel wire sub-component models, and importing the thick steel wire sub-component models and the material properties of the stainless steel wire into finite element simulation analysis software;

[0007] Step 2: adding binding constraints to the plurality of thick steel wire sub-component models so as to bind the plurality of thick steel wire sub-component models into a thick steel wire model;

[0008] Step 3, stretching the thick steel wire model by adding a load to the thick steel wire model;

[0009] Step 4, meshing the thick steel wire model, and performing simulation analysis on the stretching of the thick steel wire model;

[0010] Step 5: According to the tensile simulation results and meshing results of the thick steel wire model, obtain the generatrix equation of the mantle corresponding to the tensile simulation results.

[0011] Preferably, in step 1, the plurality of thick steel wire sub-component models are all cylinders, and the plurality of thick steel wire sub-component models include a first bottom component model, an intermediate component model and a second bottom component model; the first bottom component model, the intermediate component model and the second bottom component model have the same bottom surface shape, and the first bottom component model and the second bottom component model are respectively connected to two ends of the intermediate component model.

[0012] Preferably, the first bottom component model and the second bottom component model have the same height.

[0013] Preferably, in step 3, adding a load to the thick steel wire model comprises:

[0014] A fully fixed load is added to the first bottom component model, and a displacement load is added to the second bottom component model.

[0015] Preferably, step 5 comprises:

[0016] Step 5.1, obtaining coordinates on a specified curve from the initial diameter to the desired diameter, and using the curve as the generatrix of the sleeve to be designed;

[0017] Step 5.2: Consider the coordinates of the points on the mantle curve as the type value points on the NURBS curve, and determine the equation of the mantle generatrix by inversely solving the control points of the NURBS curve.

[0018] In a second aspect, a casing film of a stretched stainless steel wire is provided, which is obtained by any method described in the first aspect.

[0019] In a third aspect, a sleeve design system for stainless steel wire stretching is provided, which is used to execute any of the methods described in the first aspect, including:

[0020] A first acquisition module is used to acquire several thick steel wire sub-component models, and import the thick steel wire sub-component models and material properties of the stainless steel wire into a finite element simulation analysis software;

[0021] A binding module, used for adding binding constraints to the plurality of thick steel wire sub-component models so as to bind the plurality of thick steel wire sub-component models into a thick steel wire model;

[0022] A simulation module for stretching the thick steel wire model by adding load to the thick steel wire model;

[0023] A partitioning module, used for performing mesh partitioning on the thick steel wire model and performing simulation analysis on the stretching of the thick steel wire model;

[0024] The second acquisition module is used to acquire the jacket generatrix equation corresponding to the tensile simulation result according to the tensile simulation result and the meshing result of the thick steel wire model.

[0025] According to a fourth aspect, a computer storage medium is provided, wherein a computer program is stored in the computer storage medium; when the computer program is executed on a computer, the computer executes any method described in the first aspect.

[0026] In a fifth aspect, an electronic device is provided, including:

[0027] Memory, used to store computer programs;

[0028] A processor is used to execute the computer program to implement any method as described in the first aspect.

[0029] The beneficial effects of the present invention are as follows: the present invention provides a sleeve film design method for stretching stainless steel wire, calculates the sleeve film generatrix equation required for stretching the stainless steel wire, thereby designing the sleeve film required in the process of stretching a thick stainless steel wire of a known diameter to a thin stainless steel wire of a specified diameter, and designs the sleeve film of the key parts required for the production process, making the production process possible. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A flow chart of a method for designing a sleeve for drawing a stainless steel wire provided by an embodiment of the present invention;

[0031] Figure 2 A schematic diagram of adding binding constraints between components provided in an embodiment of the present invention;

[0032] Figure 3 A schematic diagram of adding a fixed load to an assembly provided by an embodiment of the present invention;

[0033] Figure 4 A schematic diagram of adding a displacement load required for stretching to an assembly provided by an embodiment of the present invention;

[0034] Figure 5 A diagram of the stretching simulation results provided by an embodiment of the present invention;

[0035] Figure 6 A cross-sectional view of a mantle provided by an embodiment of the present invention;

[0036] Explanation of reference numerals: first bottom component model 1, middle component model 2, second bottom component model 3, completely fixed load a, displacement load b, first set of membrane generatrix endpoint A, second set of membrane generatrix endpoint B. DETAILED DESCRIPTION

[0037] The present invention is further described below in conjunction with embodiments. The description of the following embodiments is only used to help understand the present invention. It should be noted that for ordinary persons in the art, without departing from the principle of the present invention, the present invention can also be modified in some ways, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

[0038] Embodiment 1:

[0039] Before introducing the sleeve membrane design method of the present application, the functional modules in the finite element simulation analysis software Abaqus to be used in the embodiment of the present application are described in detail:

[0040] Assembly module: The assembly module is a module in Abaqus that is used to combine multiple parts into an overall assembly. In this module, users can translate, rotate, constrain positioning, etc., to assemble the various parts according to the design requirements to form a complete model. The reason for creating the assembly module is to facilitate users to combine multiple independent parts into a whole for subsequent analysis and calculation. This helps to simulate the behavior of complex structures and improve the accuracy and efficiency of analysis.

[0041] Analysis step module: The analysis step module is a module in Abaqus that is used to define the simulation process and analysis steps. In this module, users can set the type of analysis step (such as static analysis, dynamic analysis, etc.), specify output requirements, analysis diagnosis and control, etc. The reason for creating the analysis step module is to allow users to flexibly define the simulation process, including the type of analysis, steps, and output requirements. This helps users better control the simulation process and obtain the required analysis results.

[0042] Interaction Module: The interaction module is a module in Abaqus that is used to define the thermal and mechanical interactions between regions of a model or between a region of a model and the surrounding regions. In this module, users can specify interaction types such as contact, constraints, connectors, etc. The reason for creating the interaction module is to simulate the interactions between objects in the real world, such as contact, friction, collision, etc. This helps to more accurately predict the behavior and performance of the model and improve the accuracy of the analysis.

[0043] Load module: Load module is a module in Abaqus used to define loads, boundary conditions and field variables. In this module, users can specify the type of load (such as concentrated force, distributed force, etc.), size, direction and point of action, as well as the settings of boundary conditions and field variables. The reason for creating the load module is to simulate the various forces and constraints acting on objects in the real world. This helps to more accurately predict the response and performance of the model under specific conditions, providing strong support for engineering design and optimization.

[0044] Job module: The job module is a tool module in Abaqus for submitting, monitoring and analyzing jobs. In this module, users can create jobs, specify analysis types, set analysis parameters, submit jobs and monitor their running status. The reason for creating the job module is to facilitate users to submit and analyze jobs and improve the efficiency and accuracy of analysis. Through the job module, users can easily manage multiple jobs and monitor their running status in real time so as to find problems and deal with them in time.

[0045] Visualization module: The visualization module is a graphical tool module in Abaqus for displaying and analyzing results. In this module, users can view the distribution of physical quantities such as stress, strain, displacement, etc. of the model, and present the results through different graphics and animation effects. The reason for creating the visualization module is to enable users to intuitively understand and analyze simulation results. Through the visualization module, users can easily view and analyze key information such as deformation and stress distribution of the model, providing strong support for engineering design and optimization.

[0046] Next, we will introduce the specific steps of the sleeve design method for stainless steel wire stretching, such as Figure 1 As shown, the method includes:

[0047] Step 1: Obtain several thick steel wire sub-component models, and import the thick steel wire sub-component models and material properties of the stainless steel wire into finite element simulation analysis software.

[0048] Specifically, several thick steel wire sub-component models are established in Solidworks, and the several thick steel wire sub-component models are imported into the assembly module of Abaqus. The steel wire used in the embodiment of the present application is stainless steel wire 306, and the material properties of the stainless steel wire 306 can be imported into the finite element simulation analysis software.

[0049] Step 2: adding binding constraints to the plurality of thick steel wire sub-component models so as to bind the plurality of thick steel wire sub-component models into a thick steel wire model.

[0050] Specifically, create a suitable analysis step in the Abaqus analysis step module, and add binding constraints to each thick steel wire sub-component model in the interaction module so that the three sub-component models are bound into one thick steel wire. For example, Figure 2 As shown, the plurality of thick steel wire sub-component models are all cylindrical, and the plurality of thick steel wire sub-component models include a first bottom component model 1, an intermediate component model 2, and a second bottom component model 3; the bottom surfaces of the first bottom component model 1, the intermediate component model 2, and the second bottom component model 3 are in the same shape, and the first bottom component model 1 and the second bottom component model 3 are respectively connected to the two ends of the intermediate component model 2. In addition, the heights of the first bottom component model 1 and the second bottom component model 3 are equal.

[0051] The three sub-component models are bound into a thick steel wire in order to facilitate the subsequent addition of tensile displacement loads to the components at both ends, so as to observe the deformation of the middle component and use this as the basis for the sleeve design.

[0052] Step 3: Stretch the thick steel wire model by adding load to the thick steel wire model.

[0053] Specifically, in the load module, such as Figure 3 As shown, a completely fixed load is added to the first bottom component model 1, such as Figure 4 As shown, a displacement load is added to the second bottom component model 3, and the thick steel wire is stretched to a displacement of X=100 mm.

[0054] Step 4: meshing the thick steel wire model and performing simulation analysis on the stretching of the thick steel wire model.

[0055] Specifically, the appropriate size is selected to mesh each component. In the actual simulation process, the mesh size of the entire assembly of this example is consistent with the given component, and the approximate global size is given as 0.6 mm. In addition, in the operation module, the stretching process of the thick steel wire is simulated.

[0056] Step 5: According to the tensile simulation results and meshing results of the thick steel wire model, obtain the generatrix equation of the mantle corresponding to the tensile simulation results.

[0057] Step 5 requires analyzing the simulation results in the visualization module. Specifically, step 5 includes:

[0058] Step 5.1, obtain the coordinates of a specified curve from the initial diameter to the expected diameter, and use the curve as the generatrix of the sleeve to be designed.

[0059] The initial diameter refers to the diameter of the steel wire before it is stretched, and the expected diameter refers to the diameter required after the steel wire is stretched. Figure 5 As shown, the designated curve is the generatrix of the stretched steel wire, and the node coordinates on the curve are obtained as follows: in the visualization module of Abaqus, relevant nodes can be selected for query to obtain the node coordinates on the generatrix of the stretched steel wire.

[0060] The generatrix of the jacket can reflect the shape of the steel wire during the stretching process. Therefore, the shape of the generatrix of the jacket is consistent with the generatrix of the steel wire after the stretching. Figure 6 As shown, point A and point B are the two end points of the mantle generatrix, and the curve between point A and point B is the mantle generatrix.

[0061] Step 5.2: Consider the coordinates of the points on the mantle curve as the type value points on the NURBS curve, and determine the equation of the mantle generatrix by inversely solving the control points of the NURBS curve.

[0062] Embodiment 2:

[0063] Based on Example 1, Example 2 of the present application provides a more specific sleeve film design method for stainless steel wire stretching, including:

[0064] Step 1, obtaining several thick steel wire sub-component models, and importing the thick steel wire sub-component models and the material properties of the stainless steel wire into finite element simulation analysis software;

[0065] Step 2: adding binding constraints to the plurality of thick steel wire sub-component models so as to bind the plurality of thick steel wire sub-component models into a thick steel wire model;

[0066] Step 3, simulating the stretching of the thick steel wire model by adding a load to the thick steel wire model;

[0067] Step 4, meshing the thick steel wire model;

[0068] Step 5: According to the tensile simulation results and meshing results of the thick steel wire model, obtain the generatrix equation of the mantle corresponding to the tensile simulation results.

[0069] Step 5 includes:

[0070] Step 5.1, obtain the coordinates of a specified curve from the initial diameter to the expected diameter, and use the curve as the generatrix of the sleeve to be designed.

[0071] Step 5.2: Consider the coordinates of the points on the mantle curve as the type value points on the NURBS curve, and determine the equation of the mantle generatrix by inversely solving the control points of the NURBS curve.

[0072] Specifically, for the jacket busbar to be designed, as shown in Table 1, the coordinates of each point on the specified curve queried in the tensile simulation results are shown. , , , , n=3 is known, the tangent vector at the endpoint is also known, the tangent vectors at the upper and lower endpoints are and .

[0073] Table 1

[0074]

[0075] In order to determine the generatrix equation using a cubic NURBS curve, it is first necessary to parameterize the known type value points using the canonical accumulated chord length method, as follows:

[0076]

[0077] The node vector can be determined .

[0078] Among them, u is a node.

[0079] Secondly, we need to determine the tangent vector conditions of the first and last points, as follows:

[0080]

[0081] in, ; , The tangent vector is the first and last point; It is the control point of the membrane busbar.

[0082] Finally, the control points of the generatrix NURBS curve are inversely calculated using the following formula:

[0083]

[0084] in, , we can get the control points as: , , , , , .

[0085] Then, the generatrix equation of the mantle can be determined .

[0086] It should be noted that the parts in this embodiment that are the same or similar to those in Embodiment 1 can be referenced to each other and will not be described in detail in this application.

[0087] Embodiment 3:

[0088] On the basis of Examples 1 and 2, Example 3 of the present application provides a sleeve design system for stainless steel wire stretching, comprising:

[0089] A first acquisition module is used to acquire several thick steel wire sub-component models, and import the thick steel wire sub-component models and material properties of the stainless steel wire into a finite element simulation analysis software;

[0090] A binding module, used for adding binding constraints to the plurality of thick steel wire sub-component models so as to bind the plurality of thick steel wire sub-component models into a thick steel wire model;

[0091] A simulation module for stretching the thick steel wire model by adding load to the thick steel wire model;

[0092] A partitioning module, used for performing mesh partitioning on the thick steel wire model and performing simulation analysis on the stretching of the thick steel wire model;

[0093] The second acquisition module is used to acquire the jacket generatrix equation corresponding to the tensile simulation result according to the tensile simulation result and the meshing result of the thick steel wire model.

[0094] Specifically, the system provided in this embodiment is a system corresponding to the method provided in Embodiments 1 and 2. Therefore, the parts in this embodiment that are the same or similar to Embodiments 1 and 2 can be referenced to each other and will not be repeated in this application.

Claims

1. A method for designing a sleeve film for stainless steel wire stretching, characterized in that: include: Step 1, obtaining several thick steel wire sub-component models, and importing the thick steel wire sub-component models and material properties of the stainless steel wire into finite element simulation analysis software; Step 2: adding binding constraints to the plurality of thick steel wire sub-component models so as to bind the plurality of thick steel wire sub-component models into a thick steel wire model; Step 3, stretching the thick steel wire model by adding a load to the thick steel wire model; Step 4, meshing the thick steel wire model, and performing simulation analysis on the stretching of the thick steel wire model; Step 5: According to the tensile simulation results and meshing results of the thick steel wire model, the generatrix equation of the mantle corresponding to the tensile simulation results is obtained; Step 5 includes: Step 5.1, obtain the coordinates on a specified curve from the initial diameter to the expected diameter, and use the curve as the generatrix of the jacket to be designed; the initial diameter refers to the diameter of the thick steel wire before stretching, and the expected diameter refers to the required diameter of the thick steel wire after stretching; the cross-sectional shape of one end of the jacket is the cross-sectional shape of the stainless steel wire before stretching, and the shape of the other end is the cross-sectional shape of the stainless steel wire after stretching the stainless steel wire to the expected diameter; the shape of the jacket generatrix is ​​consistent with the generatrix of the steel wire after being stretched; Step 5.2: Consider the coordinates of the points on the mantle curve as the type value points on the NURBS curve, and determine the equation of the mantle generatrix by inversely solving the control points of the NURBS curve.

2. The method for designing a sleeve for drawing stainless steel wire according to claim 1, characterized in that: In step 1, the plurality of thick steel wire sub-component models are all cylindrical, and the plurality of thick steel wire sub-component models include a first bottom surface component model (1), an intermediate component model (2) and a second bottom surface component model (3); the first bottom surface component model (1), the intermediate component model (2) and the second bottom surface component model (3) have the same bottom surface shape, and the first bottom surface component model (1) and the second bottom surface component model (3) are respectively connected to two ends of the intermediate component model (2).

3. The method for designing a sleeve for drawing stainless steel wire according to claim 2, characterized in that: The first bottom surface component model (1) and the second bottom surface component model (3) have the same height.

4. The method for designing a sleeve for drawing stainless steel wire according to claim 3, characterized in that: In step 3, adding load to the thick steel wire model includes: A completely fixed load is added to the first bottom surface component model (1), and a displacement load is added to the second bottom surface component model (3).

5. A sleeve design system for stainless steel wire stretching, characterized in that: Used to perform the method according to any one of claims 1 to 4, comprising: A first acquisition module is used to acquire several thick steel wire sub-component models, and import the thick steel wire sub-component models and material properties of the stainless steel wire into a finite element simulation analysis software; A binding module, used for adding binding constraints to the plurality of thick steel wire sub-component models so as to bind the plurality of thick steel wire sub-component models into a thick steel wire model; A simulation module for stretching the thick steel wire model by adding load to the thick steel wire model; A partitioning module, used for performing mesh partitioning on the thick steel wire model and performing simulation analysis on the stretching of the thick steel wire model; The second acquisition module is used to acquire the jacket generatrix equation corresponding to the tensile simulation result according to the tensile simulation result and the meshing result of the thick steel wire model.

6. A computer storage medium, characterized in that: The computer storage medium stores a computer program; when the computer program is executed on a computer, the computer executes any one of the methods described in claims 1 to 4.

7. An electronic device, characterized in that: include: Memory, used to store computer programs; A processor, configured to execute the computer program to implement the method according to any one of claims 1 to 4.

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