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CN-121983826-A - High-efficiency production control method and system for red copper new energy wiring terminal

CN121983826ACN 121983826 ACN121983826 ACN 121983826ACN-121983826-A

Abstract

The invention provides a high-efficiency production control method and a high-efficiency production control system for a red copper new energy binding post, which relate to the technical field of new energy component manufacturing, and the method comprises the steps of generating a group of initial process parameter combinations; the method comprises the steps of performing precision stamping according to an initial process parameter combination to obtain a terminal blank, synchronously obtaining stamping dynamic parameters of the terminal blank, inputting the stamping dynamic parameters into a grain form prediction model, calculating optimized vacuum annealing process parameters for carrying out vacuum annealing treatment on the terminal blank to obtain a blank with a target grain state, dynamically determining at least three microstructure detection points in a preset key area of the blank with the target grain state, and obtaining grain size data of each microstructure detection point in real time, wherein the preset key area comprises a pin hole inner wall, a blank outer edge stress concentration area and a core transition area. The invention can realize the dynamic collaborative optimization of the process parameters and improve the production efficiency and the product performance stability.

Inventors

  • Gan Xiaotuan
  • YU YONGYOU
  • PAN TAILONG

Assignees

  • 深圳市喜利来精密五金有限公司

Dates

Publication Date
20260505
Application Date
20260123

Claims (10)

  1. 1. The high-efficiency production control method for the red copper new energy binding post is characterized by comprising the following steps of: generating a set of initial process parameter combinations; Performing precision stamping according to the initial technological parameter combination to obtain a terminal blank, and synchronously obtaining stamping dynamic parameters of the terminal blank; Inputting stamping dynamic parameters into a crystal grain shape prediction model, calculating optimized vacuum annealing process parameters, and performing vacuum annealing treatment on the terminal blank to obtain a blank with a target crystal grain state; Dynamically determining at least three microstructure detection points in a preset key area of a blank with a target grain state, and acquiring grain size data of each microstructure detection point in real time, wherein the preset key area comprises an inner wall of a pin hole, a stress concentration area at the outer edge of the blank and a core transition area; Taking the obtained microstructure detection points and grain size data as input, simulating a grain boundary energy minimization process, and dynamically converging to generate a quasi-steady microstructure topological configuration; calculating the area variation coefficients and the shape complexity entropy of all topological units in the topological configuration, and fusing to generate a microstructure order parameter representing the grain structure stability; The method comprises the steps of detecting the residual stress distribution of the blank on line to obtain residual stress distribution data, fusing microstructure order parameters and the residual stress distribution data, and calculating the cooperative compensation quantity of numerical control turning in real time; Controlling the turning process according to the cooperative compensation amount to obtain a terminal body meeting the requirement of dimensional tolerance; And acquiring final grain state and dimensional accuracy data of the terminal body, dynamically adjusting heat input parameters of laser hot-melt welding, and performing a welding procedure to form a welding joint meeting the requirements of contact resistance.
  2. 2. The method of claim 1, wherein generating a set of initial process parameter combinations comprises: Receiving design indexes and material attribute parameters of a red copper new energy binding post, wherein the design indexes at least comprise target conductivity, target dimensional tolerance, target contact resistance and target grain size threshold; establishing a mapping relation library of design indexes and initial process parameters, wherein the initial process parameters comprise stamping deformation, vacuum annealing temperature and time and turning feeding quantity; Based on the mapping relation library, matching corresponding initial parameter values for each design index; coupling all initial parameter values obtained by matching to generate a group of initial technological parameter combinations which are used as input boundary conditions of a crystal grain morphology prediction model.
  3. 3. The method for controlling the efficient production of the red copper new energy wiring terminal according to claim 2, wherein the precision stamping is performed according to the initial process parameter combination to obtain a terminal blank, and the stamping dynamic parameters of the terminal blank are synchronously obtained, comprising: Setting a stamping forming path according to stamping deformation in the initial process parameter combination; performing stamping forming on the red copper coiled material based on the set stamping forming path to obtain an initial terminal blank; synchronously monitoring a dynamic response signal corresponding to the stamping forming path in the stamping forming process; Decoupling and feature extraction are carried out on the monitored dynamic response signals, and the stamping dynamic parameters of the terminal blank are obtained through analysis, wherein the stamping dynamic parameters at least comprise plastic deformation and strain distribution.
  4. 4. The method for efficient production control of a red copper new energy wiring terminal according to claim 3, wherein the step of inputting the stamping dynamic parameters into a grain morphology prediction model, calculating optimized vacuum annealing process parameters for vacuum annealing a terminal blank to obtain a blank having a target grain state, comprises: normalizing and vectorizing the stamping dynamic parameters to generate a model input vector; Feeding the model input vector into a crystal grain shape prediction model, and outputting a group of initial vacuum annealing process parameter prediction values through forward calculation of the crystal grain shape prediction model; performing constraint verification and smooth optimization on an initial vacuum annealing process parameter predicted value according to the material properties of the terminal blank and a target grain size threshold value to generate a group of optimized vacuum annealing process parameters; Performing programmed vacuum annealing treatment on the terminal blank according to the optimized vacuum annealing process parameters; after the vacuum annealing treatment is completed, the ingot is subjected to sampling verification to confirm that the average grain size thereof reaches the target grain state, thereby obtaining an ingot having the target grain state.
  5. 5. The method for efficiently producing and controlling the copper-red new energy binding post according to claim 4, wherein at least three microstructure detection points are dynamically determined in a preset critical area of a blank having a target grain state, grain size data of each microstructure detection point are obtained in real time, the preset critical area comprises an inner wall of a pin hole, a stress concentration area at an outer edge of the blank and a core transition area, and the method comprises the following steps: acquiring three-dimensional structure data and historical process data of a blank with a target grain state; Based on the obtained three-dimensional structure data and historical process data of the blank with the target grain state, respectively dynamically determining initial coordinates of at least one microstructure detection point in the inner wall of the pin hole, the stress concentration area of the outer edge of the blank and the core transition area; Combining the real-time surface morphology information of the blank and the residual stress pre-distribution, performing self-adaptive optimization on initial coordinates of each microstructure detection point, and generating a final microstructure detection point coordinate set; performing on-line microscopic image acquisition based on the final microscopic tissue detection point coordinate set to obtain image data of each microscopic tissue detection point; and analyzing the obtained image data at each microstructure detection point in real time, and extracting and outputting grain size data corresponding to each point.
  6. 6. The method for efficient production control of a red copper new energy binding post according to claim 5, wherein the method is characterized in that the obtained microstructure detection points and grain size data are used as input, a grain boundary energy minimization process is simulated, a quasi-steady microstructure topological configuration is generated by dynamic convergence, the area variation coefficients and the shape complexity entropy of all topological units in the topological configuration are calculated, and a microstructure order parameter representing the grain structure stability is generated by fusion, and the method comprises the following steps: taking the coordinates of each microstructure detection point as an initial crystal nucleus position, taking the grain size data of the microstructure detection points as basic weight for calculating the grain boundary energy, and iteratively executing the minimum simulation calculation of the grain boundary energy; when the simulation calculation reaches a dynamic convergence condition, locking the final spatial arrangement of each crystal nucleus, and generating a quasi-steady microstructure topological configuration according to the final spatial arrangement; Calculating the areas of all topological units in the configuration based on the generated quasi-steady microstructure topological configuration, and counting to obtain the area variation coefficient; And carrying out weighted fusion on the calculated area variation coefficient and the shape complexity entropy to generate a comprehensive microstructure order parameter representing the grain structure stability.
  7. 7. The method for efficiently producing and controlling the copper new energy binding post according to claim 6, wherein the method is characterized by detecting the residual stress distribution of the blank on line to obtain residual stress distribution data, fusing microstructure order parameters and the residual stress distribution data, and calculating the cooperative compensation amount of numerical control turning in real time, and comprises the following steps: Analyzing the geometric characteristics of a blank with a target grain state, determining a key area for detecting residual stress according to the geometric characteristics, and planning a residual stress detection path covering the surface of the blank based on the key area; Performing non-contact online stress scanning along a residual stress detection path to acquire stress distribution original signals of the surface of the blank; performing calibration and spatial interpolation processing on the collected stress distribution original signals to generate complete residual stress distribution data; receiving the microstructure order parameters, and inputting the microstructure order parameters and complete residual stress distribution data into a pre-trained compensation amount calculation model; and performing coupling analysis through a pre-trained compensation quantity calculation model, and outputting real-time collaborative compensation quantities aiming at different turning axial directions and radial directions.
  8. 8. The method for controlling the efficient production of the red copper new energy wiring terminal according to claim 7, wherein the turning process is controlled according to the cooperative compensation amount to obtain the terminal body meeting the dimensional tolerance requirement, comprising: Analyzing the real-time cooperative compensation quantity to convert the real-time cooperative compensation quantity into a dynamic adjustment parameter of the turning process; in a preset reference turning program, synchronously executing dynamic adjustment parameters to finish compensation turning of the blank; after the compensating turning is completed, an on-line dimensional measurement is performed on the formed terminal body to verify that its critical dimensions meet the target dimensional tolerance requirements, thereby obtaining a terminal body that meets the dimensional tolerance requirements.
  9. 9. The method for efficient production control of a red copper new energy wiring terminal according to claim 8, wherein the final grain state and dimensional accuracy data of the terminal body is obtained to dynamically adjust the heat input parameters of laser hot-melt welding, and the welding process is performed to form a welded joint satisfying the contact resistance requirement, comprising: detecting the final state of the terminal body meeting the dimensional tolerance requirement, and synchronously acquiring the crystal grain state data of the surface and the near-surface layer and the precision data of the critical dimension of the terminal body; carrying out matching analysis on the obtained crystal grain state data and the dimensional accuracy data and a preset welding quality mapping relation to determine a required heat input parameter adjustment amount; dynamically setting real-time technological parameters of a laser hot-melt welding procedure according to the determined heat input parameter adjustment quantity; Carrying out laser hot-melt welding on the terminal body and the lead by adopting dynamically set real-time process parameters to form a metallurgically bonded welding joint; and performing online electrical property test on the metallurgically bonded welding joint to verify that the contact resistance of the welding joint meets the target contact resistance requirement, thereby obtaining the welding joint meeting the contact resistance requirement.
  10. 10. A high-efficiency production control system for a red copper new energy wiring terminal, which realizes the method as set forth in any one of claims 1 to 9, comprising: the collaborative initialization module is used for generating a group of initial process parameter combinations; The stamping dynamic monitoring acquisition module is used for performing precise stamping according to the initial technological parameter combination to acquire a terminal blank and synchronously acquiring stamping dynamic parameters of the terminal blank; The annealing parameter optimization module is used for inputting stamping dynamic parameters into the crystal grain morphology prediction model, calculating optimized vacuum annealing process parameters and carrying out vacuum annealing treatment on the terminal blank to obtain a blank with a target crystal grain state; The detecting point dynamic determining module is used for dynamically determining at least three microstructure detecting points in a preset key area of the blank with a target grain state and acquiring grain size data of each microstructure detecting point in real time, wherein the preset key area comprises an inner wall of a pin hole, a stress concentration area at the outer edge of the blank and a core transition area; The dynamic simulation and calculation module is used for simulating a grain boundary energy minimization process by taking the obtained microstructure detection points and grain size data as input and dynamically converging to generate a quasi-steady microstructure topological configuration; The device comprises a turning on-line compensation module, a microstructure order parameter and residual stress distribution data fusion module, a numerical control turning on-line compensation module, a terminal body and a control module, wherein the turning on-line compensation module is used for detecting the residual stress distribution of the blank on line to obtain residual stress distribution data; And the welding parameter dynamic adjustment module is used for acquiring the final crystal grain state and dimensional accuracy data of the terminal body so as to dynamically adjust the heat input parameters of laser hot-melt welding and execute a welding procedure to form a welding joint meeting the requirements of contact resistance.

Description

High-efficiency production control method and system for red copper new energy wiring terminal Technical Field The invention relates to the technical field of manufacturing of new energy components, in particular to a high-efficiency production control method and system for a red copper new energy wiring terminal. Background The red copper new energy binding post is a core connecting piece of an electric power transmission system such as a new energy automobile, an energy storage power station and the like, and the conductivity, the mechanical strength and the contact resistance stability of the red copper new energy binding post directly determine the efficiency and the safety of energy transmission. The large-scale production of the red copper new energy binding post usually needs to be sequentially subjected to key procedures such as precise stamping, vacuum annealing, numerical control turning, laser hot-melt welding and the like, and the technological parameter setting of each procedure plays a decisive role in the final performance of the terminal. At present, the production control of the red copper new energy binding post in the industry has the technical defects that a process independent regulation mode is adopted, namely, technological parameters of each process are formulated based on preset fixed standards or experience values, and a cooperative association mechanism based on a blank microstructure evolution rule is lacked among the processes of stamping, annealing, turning, welding and the like. The defects can cause a series of problems, such as dynamic processing data such as plastic deformation quantity, strain distribution and the like generated in a precision stamping process cannot be fed back to a subsequent vacuum annealing process to optimize process parameters, the uniformity of crystal grain states of annealed blanks in key areas such as the inner wall of a pin hole, an outer edge stress concentration area and the like is poor, the crystal grain size deviates from a target threshold value, and further the fatigue resistance and the conductivity stability of a terminal are reduced. Disclosure of Invention The invention aims to solve the technical problem of providing the high-efficiency production control method and the high-efficiency production control system for the red copper new energy wiring terminal, which are suitable for the precise and high-efficiency production process control of the red copper new energy wiring terminal, realize the dynamic collaborative optimization of process parameters and improve the production efficiency and the product performance stability. In order to solve the technical problems, the technical scheme of the invention is as follows: in a first aspect, a method for efficiently controlling production of a red copper new energy binding post, the method comprising: Step 1, generating a group of initial technological parameter combinations; Step 2, performing precision stamping according to the initial technological parameter combination to obtain a terminal blank, and synchronously obtaining stamping dynamic parameters of the terminal blank; Step 3, inputting stamping dynamic parameters into a crystal grain shape prediction model, calculating optimized vacuum annealing process parameters, and performing vacuum annealing treatment on the terminal blank to obtain a blank with a target crystal grain state; Step 4, dynamically determining at least three microstructure detection points in a preset key area of the blank with a target grain state, and acquiring grain size data of each microstructure detection point in real time, wherein the preset key area comprises an inner wall of a pin hole, a stress concentration area at the outer edge of the blank and a core transition area; Step 5, taking the obtained microstructure detection points and grain size data as input, simulating a grain boundary minimizing process, and dynamically converging to generate a quasi-steady microstructure topological configuration; Step 6, detecting the residual stress distribution of the blank on line to obtain residual stress distribution data, fusing microstructure order parameters and the residual stress distribution data, and calculating the cooperative compensation quantity of numerical control turning in real time; Step 7, controlling the turning process according to the cooperative compensation amount to obtain a terminal body meeting the requirement of dimensional tolerance; And 8, acquiring final grain state and dimensional accuracy data of the terminal body, dynamically adjusting heat input parameters of laser hot-melt welding, and performing a welding procedure to form a welding joint meeting the requirements of contact resistance. In a second aspect, a high-efficiency production control system for a red copper new energy binding post comprises: the collaborative initialization module is used for generating a group of initial process parameter combinations; The stampin