Stamping springback control method and system suitable for vehicle bright decoration strip machining

Abstract

The invention provides a stamping springback control method and system suitable for vehicle bright decoration strip machining. The stamping springback control method suitable for machining of the vehicle bright decoration strip comprises the steps that a mold of the bright decoration strip is scanned, and depth information and shape information of the mold of the bright decoration strip are obtained; according to the depth information and the shape information of the bright decoration strip mold, initial stamping parameters of stamping of the bright decoration strip are obtained in combination with material information of the bright decoration strip; according to the initial stamping parameters, stamping operation is conducted on the bright decoration strip original plate; and in the stamping process, the temperature and the deformation amplitude of the plate in the stamping process are monitored in real time, and according to the temperature and the deformation amplitude of the plate in the stamping process, the initial stamping parameters of stamping of the bright decorative strip are dynamically adjusted. The system comprises modules corresponding to the steps of the method.

Description

Technical Field

[0001] The invention provides a stamping springback control method and system suitable for processing vehicle bright trim strips, belonging to the technical field of vehicle parts processing. Background Art

[0002] In the vehicle manufacturing industry, vehicle bright trim strips, as important decorative parts of the vehicle body, play an important role in improving the overall appearance and quality of the vehicle. However, bright trim strips face many technical challenges in the processing process, especially in the stamping forming process. Among them, stamping springback is a particularly prominent problem, which directly affects the forming accuracy and final quality of bright trim strips. Traditional stamping springback control methods often rely on empirical judgment and multiple trial and error. This method is not only inefficient, but also difficult to ensure that satisfactory forming effects can be obtained in each production. In addition, due to the complex and diverse shapes of bright trim strip molds, the stamping parameters required for different molds are also different, which further increases the difficulty of control. In order to overcome the shortcomings of traditional methods, the industry has begun to explore more accurate and efficient stamping springback control methods. Among them, a feasible idea is to dynamically adjust the stamping parameters by real-time monitoring of key parameters in the stamping process, such as sheet temperature and deformation amplitude, so as to achieve the purpose of controlling springback. However, this method requires high-precision monitoring equipment and complex algorithm support, which is difficult to implement.

[0003] In this context, the present invention proposes a stamping springback control method suitable for vehicle bright trim processing. The method combines advanced scanning technology and real-time monitoring technology to accurately obtain the depth information and shape information of the mold, as well as the temperature and deformation amplitude of the sheet during the stamping process. By comprehensively analyzing this information, the present invention can accurately calculate the initial stamping parameters and dynamically adjust them according to the actual situation during the stamping process, thereby effectively controlling the springback amount and improving the forming accuracy and final quality of the bright trim. Summary of the invention

[0004] The present invention provides a stamping springback control method and system suitable for processing vehicle bright trim strips, which is used to solve the above technical problems in the prior art. The technical solutions adopted are as follows:

[0005] A stamping springback control method applicable to processing of vehicle bright trim strips, the stamping springback control method applicable to processing of vehicle bright trim strips comprising:

[0006] Scanning the mold of the bright trim strip to obtain the depth information and shape information of the bright trim strip mold;

[0007] Acquire initial stamping parameters for stamping the bright trim strip according to the depth information and shape information of the bright trim strip mold and the material information of the bright trim strip;

[0008] Performing a stamping operation on the bright trim strip original sheet material according to the initial stamping parameters;

[0009] During the stamping process, the temperature and deformation amplitude of the sheet material during the stamping process are monitored in real time, and the initial stamping parameters of the bright trim strip stamping are dynamically adjusted according to the temperature and deformation amplitude of the sheet material during the stamping process.

[0010] Furthermore, the mold of the bright trim strip is scanned to obtain depth information and shape information of the bright trim strip mold, including:

[0011] Setting scanning parameters for the laser scanner, wherein the scanning parameters include resolution parameters, scanning speed parameters and scanning range parameters;

[0012] Scanning the bright trim mold using the laser scanner to obtain a three-dimensional model of the bright trim mold;

[0013] Acquiring depth information of the bright trim mold according to the three-dimensional model of the bright trim mold, wherein the depth information includes depth levels and depth values ​​corresponding to each depth level;

[0014] The shape information of the bright trim strip mold is acquired according to the three-dimensional model of the bright trim strip mold, wherein the shape information includes a maximum curvature value of a contour of the bright trim strip and a maximum curvature value of a curved surface.

[0015] Furthermore, initial stamping parameters for stamping the bright trim strip are obtained based on the depth information and shape information of the bright trim strip mold and the material information of the bright trim strip, including:

[0016] Extracting the depth information and shape information of the bright trim mold, and obtaining the depth coefficient and shape coefficient by using the depth information and shape information of the bright trim mold;

[0017] Obtaining a material coefficient using material information of the bright trim strip;

[0018] Initial stamping parameters for stamping the bright trim strip are obtained by using the depth coefficient and shape coefficient of the bright trim strip mold in combination with the material coefficient corresponding to the material information of the bright trim strip, wherein the initial stamping parameters include an initial stamping speed and an initial stamping pressure.

[0019] Further, extracting the depth information and shape information of the bright trim mold, and using the depth information and shape information of the bright trim mold to obtain the depth coefficient and shape coefficient includes:

[0020] Retrieving depth information of the bright trim mold, wherein the depth information includes depth levels and depth values ​​corresponding to each depth level;

[0021] Obtaining a depth coefficient using the depth information of the bright trim mold;

[0022] The depth coefficient is obtained by the following formula:

[0023]

[0024] Among them, Y 01 represents the depth coefficient; n represents the depth level; i represents the index number corresponding to the depth level; D i Indicates the deepest depth value corresponding to the i-th depth level; α i，i+1 represents the transition slope between the i-th depth level and the i+1-th depth level; α di represents the depth bottom slope corresponding to the i-th depth level;

[0025] Retrieving shape information of the bright trim mold; wherein the shape information includes a maximum curvature value of a contour of the bright trim and a maximum curvature value of a curved surface;

[0026] Obtaining a shape coefficient using the shape information of the bright trim strip;

[0027] The shape coefficient is obtained by the following formula:

[0028]

[0029] Among them, Y 02 Represents shape coefficient; C p and C s Indicates the maximum curvature value and the maximum curvature value of the surface.

[0030] Furthermore, the material coefficient is obtained by using the material information of the bright trim strip, including:

[0031] Retrieving material information of the bright trim strip to obtain a material coefficient, wherein the material information of the bright trim strip includes elastic modulus, yield strength, tensile strength, hardness, and strain rate sensitivity parameters;

[0032] The first coefficient parameter is obtained by using the elastic modulus and hardness; wherein the first coefficient parameter is obtained by the following formula:

[0033]

[0034] Among them, K 01 represents the first coefficient parameter; E represents the elastic modulus; E c Indicates the preset elastic modulus reference value; H indicates the hardness value; H c Indicates the preset hardness reference value;

[0035] The first coefficient parameter is obtained by using the yield strength, tensile strength and strain rate sensitivity parameters; wherein the second coefficient parameter is obtained by the following formula:

[0036]

[0037] Among them, K 02 represents the second coefficient parameter; Q represents the yield strength; L represents the tensile strength; m represents the strain rate sensitivity parameter;

[0038] The material coefficient is obtained by using the first coefficient parameter and the second coefficient parameter; wherein the material coefficient is obtained by the following formula:

[0039]

[0040] Where, K represents the material coefficient; K 01 Represents the first coefficient parameter; K 02 Represents the second coefficient parameter.

[0041] Furthermore, the initial stamping parameters for stamping the bright trim strip are obtained by using the depth coefficient and shape coefficient of the bright trim strip mold in combination with the material coefficient corresponding to the material information of the bright trim strip, including:

[0042] Retrieving the depth coefficient, shape coefficient and material coefficient;

[0043] Comparing the depth coefficient with a corresponding preset depth coefficient reference value to obtain a first comparison result;

[0044] Comparing the shape coefficient with a corresponding preset shape coefficient reference value to obtain a second comparison result;

[0045] Comparing the material coefficient with a corresponding preset material coefficient reference value to obtain a third comparison result;

[0046] The initial punching speed is obtained by using the first comparison result, the second comparison result and the third comparison result, wherein the initial punching speed is obtained by the following formula:

[0047]

[0048] Wherein, V0 represents the initial punching speed; Y 01 Indicates the depth coefficient; Y 02 represents the shape factor; K represents the material factor; Y 01c Indicates the depth coefficient reference value; Y 02c Indicates the shape factor reference value; K c Indicates the reference value of material coefficient;

[0049] The initial stamping pressure is obtained by using the depth coefficient, shape coefficient and material coefficient, wherein the initial stamping pressure is obtained by the following formula:

[0050]

[0051] Where P0 represents the initial stamping pressure; Y 01 Indicates the depth coefficient; Y 02 represents shape coefficient; K represents material coefficient.

[0052] Further, a stamping operation is performed on the bright trim strip original sheet material according to the initial stamping parameters, including:

[0053] Extracting the initial stamping parameters, wherein the initial stamping parameters include an initial stamping speed and an initial stamping pressure;

[0054] Inputting the initial stamping parameters into a stamping control module for stamping springback;

[0055] Performing a stamping operation on the bright trim strip original plate by means of the stamping control module;

[0056] The stamping control module performs stamping operations on the bright trim strip original plate, including:

[0057] A first pressure sensor is arranged on the surface where the mold contacts the plate;

[0058] A second pressure sensor is installed between the mold clamping limit blocks;

[0059] Punch the sheet metal according to the initial punching speed and initial punching pressure;

[0060] When the stamping die is pressed down to the lower clamping die according to the initial stamping speed and the initial stamping pressure, the induction heating coil arranged in the angular deformation area of ​​the die is controlled to heat the sheet pressed into the die;

[0061] When the pressure reading of the second pressure sensor is 0, the pressure value of the first pressure sensor is the response force of the plate, and the pressure value of the first pressure sensor is compared with a preset pressure threshold;

[0062] When the pressure value of the first pressure sensor is lower than a preset pressure threshold, the inductor coil is controlled to stop heating and the plate is cooled;

[0063] When the plate is cooled, the mold is controlled to be lifted and the bright decorative strip is taken out.

[0064] Furthermore, during the stamping process, the temperature and deformation amplitude of the sheet material during the stamping process are monitored in real time, and the initial stamping parameters of the bright trim stamping are dynamically adjusted according to the temperature and deformation amplitude of the sheet material during the stamping process, including:

[0065] During the stamping process, the temperature and deformation of the sheet metal during the stamping process are monitored in real time;

[0066] comparing the temperature of the sheet during the stamping process with a preset temperature threshold;

[0067] When the temperature of the plate during the stamping process exceeds a preset temperature threshold, but the deformation amplitude during the stamping process does not exceed a preset deformation amplitude threshold, the initial stamping speed is adjusted to obtain an adjusted first stamping speed;

[0068] The adjusted first punching speed is obtained by the following formula:

[0069]

[0070] Among them, V 01 represents the first punching speed after adjustment; V0 represents the initial punching speed; T represents the sheet temperature during the punching process; T y represents the preset temperature threshold; A represents the deformation amplitude during the stamping process corresponding to the moment when the sheet temperature exceeds the preset temperature threshold; A max Indicates the preset maximum allowable deformation range;

[0071] When the deformation amplitude during the stamping process exceeds a preset deformation amplitude threshold, but the temperature of the plate during the stamping process does not exceed a preset temperature threshold, the initial stamping pressure is adjusted to obtain an adjusted first stamping pressure;

[0072] The adjusted first stamping pressure is obtained by the following formula:

[0073]

[0074] Among them, P 01 represents the first stamping pressure after adjustment; P0 represents the initial stamping pressure; A d Indicates the deformation amplitude value corresponding to the deformation amplitude threshold value exceeding the preset value; T d Indicates the sheet temperature during the stamping process at the time when the deformation amplitude value exceeds the preset deformation amplitude threshold; T max Indicates the preset maximum allowable plate temperature; A y Indicates the preset deformation amplitude threshold;

[0075] When the deformation amplitude during the stamping process exceeds a preset deformation amplitude threshold, and the plate temperature during the stamping process is equal to a preset temperature threshold, the initial stamping pressure and the initial stamping speed are adjusted simultaneously to obtain an adjusted second stamping pressure and a second stamping speed.

[0076] Further, when the deformation amplitude during the stamping process exceeds a preset deformation amplitude threshold, and the plate temperature during the stamping process is equal to a preset temperature threshold, the initial stamping pressure and the initial stamping speed are adjusted simultaneously to obtain the adjusted second stamping pressure and the second stamping speed, including:

[0077] When the deformation amplitude during the stamping process exceeds a preset deformation amplitude threshold, and the plate temperature during the stamping process is equal to the preset temperature threshold, the difference between the deformation amplitude and the preset deformation amplitude threshold is retrieved as the first difference data, and the difference between the plate temperature and the preset plate temperature threshold is retrieved as the second difference data;

[0078] Comparing the first difference data with a preset first difference threshold;

[0079] When the first difference data exceeds a preset first difference threshold, a first weight parameter corresponding to the deformation amplitude is retrieved as a target weight value of the deformation amplitude;

[0080] When the first difference data does not exceed the preset first difference threshold, the second weight parameter corresponding to the deformation amplitude is retrieved as the target weight value of the deformation amplitude; wherein the first weight parameter corresponding to the deformation amplitude is greater than the second weight parameter corresponding to the deformation amplitude;

[0081] When the second difference data exceeds a preset second difference threshold, the first weight parameter corresponding to the plate temperature is retrieved as a target weight value of the plate temperature;

[0082] When the second difference data does not exceed the preset second difference threshold, the second weight parameter corresponding to the plate temperature is retrieved as the target weight value of the plate temperature; wherein the first weight parameter corresponding to the plate temperature is greater than the second weight parameter corresponding to the plate temperature;

[0083] Obtaining an adjusted second punching pressure and a second punching speed by using the first difference data and the second difference data in combination with a target weight value corresponding to the deformation amplitude and a target weight value corresponding to the plate temperature;

[0084] The adjusted second stamping pressure is obtained by the following formula:

[0085]

[0086] Among them, V 02 represents the adjusted second punching speed; V0 represents the initial punching speed; w a and w t They represent the target weight value of deformation amplitude and the target weight value of plate temperature respectively; C aand C t Respectively represent the first difference data and the second difference data;

[0087] Furthermore, the adjusted second punching speed is obtained by the following formula:

[0088]

[0089] Among them, P 02 represents the adjusted second punching speed; P0 represents the initial punching pressure; w a and w t They represent the target weight value of deformation amplitude and the target weight value of plate temperature respectively; C a and C t Represent the first difference data and the second difference data respectively.

[0090] A stamping springback control system suitable for processing vehicle bright trim strips, the stamping springback control system suitable for processing vehicle bright trim strips comprising:

[0091] An information acquisition module is used to scan the mold of the bright trim strip to obtain depth information and shape information of the bright trim strip mold;

[0092] A stamping parameter initial setting module, used to obtain initial stamping parameters for stamping the bright trim strip according to the depth information and shape information of the bright trim strip mold and the material information of the bright trim strip;

[0093] A stamping control module, used for performing a stamping operation on the bright trim strip original sheet material according to the initial stamping parameters;

[0094] The stamping parameter dynamic adjustment module is used to dynamically adjust the initial stamping parameters of the bright trim stamping according to the sheet temperature and deformation amplitude during the stamping process by real-time monitoring the sheet temperature and deformation amplitude during the stamping process.

[0095] Beneficial effects of the present invention:

[0096] The present invention proposes a stamping springback control method and system suitable for vehicle bright trim processing, which can ensure that the stamping parts maintain a stable temperature and deformation state during the forming process by real-time monitoring and dynamic adjustment of stamping parameters, thereby improving the forming quality. Forming defects such as cracks, wrinkles, deformation, etc. caused by uneven material flow or excessive springback are reduced. The springback amount of the stamping parts can be effectively reduced by precise control and dynamic adjustment of stamping parameters. This helps to ensure that the stamping parts maintain accurate size and shape during subsequent processing and assembly, and improve the assembly quality and appearance of the whole vehicle. The method reduces manual intervention and trial and error costs by automatically monitoring and adjusting stamping parameters. At the same time, due to the improvement of forming quality and springback, production losses caused by rework and scrapping are also reduced, thereby improving production efficiency. By improving forming quality and reducing springback, the appearance effect and assembly accuracy of vehicle bright trims can be significantly improved. This helps to enhance the market competitiveness of products and meet consumers' expectations and needs for high-quality automotive appearance. BRIEF DESCRIPTION OF THE DRAWINGS

[0097] Figure 1 is a flow chart of the method of the present invention;

[0098] Figure 2 The system block diagram of the system of the present invention. DETAILED DESCRIPTION

[0099] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0100] The embodiment of the present invention provides a stamping springback control method suitable for processing vehicle bright trim strips, such as Figure 1 As shown, the stamping springback control method applicable to vehicle bright trim processing includes:

[0101] S1. Scanning a mold of a bright trim strip to obtain depth information and shape information of the bright trim strip mold;

[0102] S2, obtaining initial stamping parameters for stamping the bright trim strip according to the depth information and shape information of the bright trim strip mold and the material information of the bright trim strip;

[0103] S3, stamping the bright trim strip original sheet material according to the initial stamping parameters;

[0104] S4. During the stamping process, the temperature and deformation amplitude of the sheet material during the stamping process are monitored in real time, and the initial stamping parameters of the bright trim strip stamping are dynamically adjusted according to the temperature and deformation amplitude of the sheet material during the stamping process.

[0105] The working principle of the above technical solution is as follows: First, use a scanning device to accurately scan the mold of the bright trim strip to obtain the depth information and shape information of the mold. This information is the basis for the subsequent formulation of stamping parameters. At the same time, combined with the material information used for the bright trim strip, comprehensive data support is provided for the formulation of initial stamping parameters. According to the depth, shape and material information of the mold, the initial stamping parameters for the bright trim strip stamping are formulated through professional calculation and analysis software. According to the formulated initial stamping parameters, the original sheet of the bright trim strip is stamped. During the stamping process, sensors are used to monitor the temperature and deformation amplitude of the sheet in real time. Changes in the sheet temperature will affect the fluidity and resilience of the material, while the deformation amplitude directly reflects the forming of the stamped parts. According to the real-time monitored sheet temperature and deformation amplitude, the initial stamping parameters are dynamically adjusted. If the sheet temperature is too high or the deformation amplitude is too large, it may be necessary to reduce the stamping speed or increase the die gap to reduce the rebound; conversely, if the sheet temperature is too low or the deformation amplitude is too small, it may be necessary to increase the stamping speed or reduce the die gap to improve the forming quality.

[0106] The effect of the above technical solution is: by real-time monitoring and dynamic adjustment of stamping parameters, it is possible to ensure that the stamping parts maintain a stable temperature and deformation state during the forming process, thereby improving the forming quality. Forming defects such as cracks, wrinkles, deformation, etc. caused by uneven material flow or excessive rebound are reduced. The rebound amount of stamping parts can be effectively reduced by precise control and dynamic adjustment of stamping parameters. This helps to ensure that the stamping parts maintain accurate size and shape during subsequent processing and assembly, and improve the assembly quality and appearance of the whole vehicle. The method reduces manual intervention and trial and error costs by automatically monitoring and adjusting stamping parameters. At the same time, due to the improvement of forming quality and rebound, production losses caused by rework and scrapping are also reduced, thereby improving production efficiency. By improving forming quality and reducing rebound, the appearance effect and assembly accuracy of vehicle bright trim strips can be significantly improved. This helps to enhance the market competitiveness of products and meet consumers' expectations and needs for high-quality automotive appearance.

[0107] In summary, the stamping springback control method suitable for vehicle bright trim processing has a significant working principle and technical effect, and is of great significance for improving the forming quality and production efficiency of automobile stamping parts.

[0108] In one embodiment of the present invention, scanning a bright trim mold to obtain depth information and shape information of the bright trim mold includes:

[0109] S101, setting scanning parameters for a laser scanner, wherein the scanning parameters include a resolution parameter, a scanning speed parameter and a scanning range parameter;

[0110] S102, scanning the bright trim mold by using the laser scanner to obtain a three-dimensional model of the bright trim mold;

[0111] S103, acquiring depth information of the bright trim mold according to the three-dimensional model of the bright trim mold, wherein the depth information includes depth levels and depth values ​​corresponding to each depth level;

[0112] S104 . Acquire shape information of the bright trim strip mold according to the three-dimensional model of the bright trim strip mold, wherein the shape information includes a maximum curvature value of a contour of the bright trim strip and a maximum curvature value of a curved surface.

[0113] The working principle of the above technical solution is as follows: First, the laser scanner needs to be parameterized, including resolution parameters, scanning speed parameters, and scanning range parameters. The resolution parameter determines the fineness of the scanning result, the scanning speed parameter affects the efficiency and time of the scanning, and the scanning range parameter determines the working area of ​​the scanner. The reasonable setting of these parameters is the prerequisite for ensuring accurate and efficient scanning results. After the parameter setting is completed, the bright trim mold is scanned using a laser scanner. The laser scanner measures the spatial position information of the mold surface by emitting a laser beam and receiving the reflected light. After processing, this information can generate a three-dimensional model of the mold. This step is the key to obtaining the shape and depth information of the mold.

[0114] After obtaining the three-dimensional model of the mold, the algorithm is used to analyze the depth information in the model. The depth information includes the depth level and the depth value corresponding to each depth level. The depth level refers to the hierarchical division of different depth positions on the mold surface, and the depth value is the actual depth value corresponding to each level. This information is crucial for the subsequent formulation of stamping parameters and prediction of springback. In addition to the depth information, the shape information of the mold needs to be extracted from the three-dimensional model. The shape information includes the maximum curvature value of the contour of the bright trim and the maximum curvature value of the curved surface. The curvature value reflects the degree of curvature of the mold surface, which is important for evaluating the fluidity and springback trend of the material during the stamping process.

[0115] The effect of the above technical solution is: by reasonably setting the scanning parameters of the laser scanner, it is possible to ensure that the accuracy and resolution of the scanning results meet the requirements, providing a reliable data basis for subsequent analysis and processing. The three-dimensional model of the mold obtained by scanning can fully obtain the depth information and shape information of the mold, providing comprehensive data support for subsequent stamping parameter formulation and rebound control. According to the depth information and shape information of the mold, stamping parameters such as stamping speed, pressure, mold gap, etc. can be formulated more accurately, thereby optimizing the stamping process and improving the forming quality and efficiency of the bright trim. By analyzing the shape information and depth information of the mold, the fluidity and rebound trend of the material during the stamping process can be predicted, so that corresponding control measures can be taken to reduce the amount of rebound and improve the dimensional accuracy and shape stability of the bright trim.

[0116] In summary, the above technical solution obtains the depth information and shape information of the mold through laser scanning technology, providing strong data support and technical guarantee for the stamping springback control of vehicle bright trim processing.

[0117] In one embodiment of the present invention, the initial stamping parameters of the bright trim strip are obtained according to the depth information and shape information of the bright trim strip mold and the material information of the bright trim strip, including:

[0118] S201, extracting depth information and shape information of the bright trim mold, and obtaining a depth coefficient and a shape coefficient using the depth information and shape information of the bright trim mold;

[0119] S202, obtaining a material coefficient using the material information of the bright trim strip;

[0120] S203, obtaining initial stamping parameters for stamping the bright trim strip by using the depth coefficient and shape coefficient of the bright trim strip mold in combination with the material coefficient corresponding to the material information of the bright trim strip, wherein the initial stamping parameters include an initial stamping speed and an initial stamping pressure.

[0121] The working principle of the above technical solution is as follows: the system first extracts the depth information and shape information of the bright trim mold previously obtained by laser scanning. This information includes the depth level of the mold, the depth value of each depth level, the maximum curvature value of the bright trim profile, and the maximum curvature value of the surface. Subsequently, the system uses a specific algorithm or empirical formula to calculate the depth coefficient and shape coefficient based on this information. The depth coefficient reflects the influence of the depth characteristics of the mold on the stamping process, while the shape coefficient reflects the restriction of the mold shape on the stamping process. In this step, the system calculates the material coefficient by consulting the material database or using empirical formulas based on the material information used for the bright trim (such as material type, thickness, strength, etc.). The material coefficient reflects the characteristics of the material during the stamping process, such as fluidity and resilience. Finally, the system combines the depth coefficient, shape coefficient and material coefficient, and uses a specific algorithm or model to calculate the initial stamping parameters for the bright trim stamping. These parameters include the initial stamping speed and initial stamping pressure, which are crucial to ensuring the smooth progress of the stamping process and obtaining high-quality bright trim products.

[0122] The effect of the above technical solution is: by comprehensively considering the depth information, shape information and material information of the mold, the initial stamping parameters can be calculated more accurately. This helps to reduce the uncertainty and error in the stamping process and improve the forming quality and dimensional accuracy of the product. Reasonable initial stamping parameters can optimize the stamping process, reduce material waste and energy consumption. At the same time, it can also improve the use efficiency and life of the stamping machine and reduce production costs. By precisely controlling the stamping parameters, the consistency and stability of each stamping process can be ensured. This helps to reduce the quality differences between products and improve the overall quality and market competitiveness of the products. Using this technical solution, the initial stamping parameters can be quickly calculated, and the corresponding stamping tests and optimizations can be carried out. This helps to shorten the product development cycle and speed up the time to market for new products.

[0123] In summary, this technical solution can accurately calculate the initial stamping parameters by comprehensively considering the depth information, shape information and material information of the mold, thereby optimizing the stamping process and improving product quality and production efficiency.

[0124] In one embodiment of the present invention, the depth information and shape information of the bright trim mold are extracted, and the depth coefficient and shape coefficient are obtained by using the depth information and shape information of the bright trim mold, including:

[0125] S2011, retrieving depth information of the bright trim mold, wherein the depth information includes depth levels and depth values ​​corresponding to each depth level;

[0126] S2012, obtaining a depth coefficient using the depth information of the bright trim mold;

[0127] The depth coefficient is obtained by the following formula:

[0128]

[0129] Among them, Y 01 represents the depth coefficient; n represents the depth level; i represents the index number corresponding to the depth level; D i Indicates the deepest depth value corresponding to the i-th depth level; α i，i+1 represents the transition slope between the i-th depth level and the i+1-th depth level; α di represents the depth bottom slope corresponding to the i-th depth level;

[0130] S2013, retrieving shape information of the bright trim mold; wherein the shape information includes a maximum curvature value of a contour of the bright trim and a maximum curvature value of a curved surface;

[0131] S2014, obtaining a shape coefficient using the shape information of the bright trim strip;

[0132] The shape coefficient is obtained by the following formula:

[0133]

[0134] Among them, Y 02 Represents shape coefficient; C p and C s Indicates the maximum curvature value and the maximum curvature value of the surface.

[0135] The working principle of the above technical solution is as follows: the system retrieves depth information from the stored bright trim mold data, which includes depth levels and depth values ​​corresponding to each depth level. The depth level is a hierarchical division of different depth positions on the mold surface, and the depth value is the actual depth value corresponding to each level. This depth information is crucial for the subsequent calculation of the depth coefficient. The system uses specific algorithms and formulas to calculate the depth coefficient (Y01) based on the retrieved depth information. The formula comprehensively considers the depth level (n), the index number (i) corresponding to each depth level, the deepest depth value (Di) corresponding to the i-th depth level, the transition slope between the i-th depth level and the i+1-th depth level (αi, i+1), and the depth bottom slope (αdi) corresponding to the i-th depth level. These parameters together reflect the impact of the mold depth characteristics on the stamping process. The depth coefficient obtained by calculation can be used to evaluate the fluidity of the material and the required stamping force during the stamping process. In this step, the system will retrieve the shape information of the bright trim mold, which includes the maximum curvature value (Cp) of the bright trim contour and the maximum curvature value (Cs) of the surface. The curvature value reflects the degree of curvature of the mold surface and is an important parameter for evaluating the deformation and rebound trend of materials during the stamping process. The system uses specific algorithms and formulas to calculate the shape coefficient (Y02) based on the retrieved shape information. This formula comprehensively considers the maximum curvature value (Cp) of the contour and the maximum curvature value (Cs) of the surface. The calculated shape coefficient can reflect the degree of restriction of the mold shape on the stamping process, as well as the stamping strategies and measures that need to be taken.

[0136] The effect of the above technical solution is: by comprehensively considering the depth information and shape information of the mold, and using specific algorithms and formulas to calculate the depth coefficient and shape coefficient, the stamping parameters can be determined more accurately. This helps to reduce the uncertainty and error in the stamping process and improve the forming quality and dimensional accuracy of the product. The calculation of the depth coefficient and shape coefficient provides an important basis for the optimization of the stamping process. By adjusting the stamping parameters to adapt to the depth and shape characteristics of the mold, the waste of materials and energy consumption can be reduced, and the efficiency and life of the stamping machine can be improved. Accurate stamping parameters and optimized stamping processes help reduce the quality differences between products and improve the overall quality and market competitiveness of products. At the same time, this also provides a more reliable foundation for subsequent processing and assembly processes. Using this technical solution, the depth coefficient and shape coefficient can be quickly calculated, and corresponding stamping tests and optimizations can be carried out. This helps to shorten the product development cycle, speed up the time to market of new products, and improve the market responsiveness of enterprises.

[0137] On the other hand, by retrieving the depth information of the bright trim mold and calculating the depth coefficient, the depth characteristics of the mold can be described more accurately. The comprehensive consideration of the depth level, depth value, transition slope and depth bottom slope makes the depth design of the mold more in line with actual needs and reduces production problems caused by improper depth design. The acquisition of the shape coefficient is based on the shape information of the bright trim mold, especially the maximum curvature value of the contour and the maximum curvature value of the surface. The precise measurement and calculation of these parameters help to grasp the shape characteristics of the mold more accurately, thereby improving the accuracy and reliability of the mold design. With the help of the depth coefficient and the shape coefficient, the mold design can be optimized more carefully. For example, the depth structure of the mold can be adjusted according to the depth coefficient to reduce material waste and processing difficulty; at the same time, the shape design of the mold can be optimized according to the shape coefficient to improve the molding quality and appearance of the product. Accurate mold design helps to reduce the debugging time and scrap rate in the production process, thereby improving production efficiency. In addition, the optimized mold structure can also reduce the wear and maintenance cost of the mold, further extending the service life of the mold. By accurately controlling the depth and shape characteristics of the mold, bright trim products that are more in line with market demand and consumer preferences can be produced. This flexibility helps companies respond quickly to market changes and meet the diverse needs of consumers. High-quality mold design is the basis for ensuring product quality. With the help of the above technical solutions, companies can produce bright trim products with higher precision and better appearance, thereby enhancing the market competitiveness of products. The application of the above technical solutions not only improves the accuracy and production efficiency of mold design, but also promotes the innovation and upgrading of mold manufacturing technology. For example, by introducing advanced measurement and computing technology, the automation and intelligence level of mold design can be further improved. The mold manufacturing industry is an important part of industries such as automobiles, aviation, and consumer electronics. With the continuous advancement and innovation of mold design technology, it will drive the development and upgrading of related industries and promote the coordinated development of the entire industrial chain.

[0138] In summary, the technical effects of the above technical solutions in terms of performance indicators are mainly reflected in improving the accuracy of mold design, optimizing production efficiency and product quality, enhancing product adaptability and market competitiveness, and promoting technological innovation and industrial upgrading. These technical effects will help improve the production efficiency and product quality of enterprises, enhance market competitiveness, and promote the coordinated development of related industries. At the same time, the technical solution provides an important basis for the precise determination of stamping parameters and the optimization of the stamping process by comprehensively considering the depth information and shape information of the mold and calculating the depth coefficient and shape coefficient. This not only helps to improve the forming quality and market competitiveness of the product, but also helps to reduce production costs and shorten the product development cycle.

[0139] In one embodiment of the present invention, obtaining a material coefficient using the material information of the bright trim strip includes:

[0140] S2021, retrieving material information of the bright trim strip to obtain a material coefficient, wherein the material information of the bright trim strip includes elastic modulus, yield strength, tensile strength, hardness, and strain rate sensitivity parameters;

[0141] S2022. Obtain a first coefficient parameter using the elastic modulus and hardness; wherein the first coefficient parameter is obtained by the following formula:

[0142]

[0143] Among them, K 01 represents the first coefficient parameter; E represents the elastic modulus; E c Indicates the preset elastic modulus reference value; H indicates the hardness value; H c Indicates the preset hardness reference value;

[0144] S2023. Obtain a first coefficient parameter using the yield strength, tensile strength and strain rate sensitivity parameters; wherein the second coefficient parameter is obtained by the following formula:

[0145]

[0146] Among them, K 02 represents the second coefficient parameter; Q represents the yield strength; L represents the tensile strength; m represents the strain rate sensitivity parameter;

[0147] S2024. Obtain a material coefficient using the first coefficient parameter and the second coefficient parameter; wherein the material coefficient is obtained by the following formula:

[0148]

[0149] Where, K represents the material coefficient; K 01 Represents the first coefficient parameter; K 02 Represents the second coefficient parameter.

[0150] The working principle of the above technical solution is as follows: the system retrieves the material information of the bright trim from the material database, including elastic modulus (E), yield strength (Q), tensile strength (L), hardness (H) and strain rate sensitivity parameter (m). These material parameters are important indicators for evaluating the performance of the material during the stamping process and are crucial for the subsequent calculation of the material coefficient. The system uses a specific algorithm and formula to calculate the first coefficient parameter (K01) based on the retrieved elastic modulus (E) and hardness (H). The formula comprehensively considers the ratio of the material's elastic modulus (E) to the preset elastic modulus reference value (Ec), as well as the ratio of the material's hardness value (H) to the preset hardness reference value (Hc). The calculated first coefficient parameter (K01) reflects the performance characteristics of the material in terms of elastic deformation and hardness. The system also uses a specific algorithm and formula to calculate the second coefficient parameter (K02) based on the retrieved yield strength (Q), tensile strength (L) and strain rate sensitivity parameter (m). This formula comprehensively considers the ratio of the material's yield strength (Q) to its tensile strength (L), as well as the influence of the strain rate sensitivity parameter (m). The calculated second coefficient parameter (K02) reflects the material's performance characteristics in terms of plastic deformation and strain rate sensitivity. Finally, the system uses the first coefficient parameter (K01) and the second coefficient parameter (K02) to calculate the material coefficient (K) through a specific formula. The material coefficient (K) is an important indicator for comprehensively evaluating the material's performance during the stamping process. It combines the material's elasticity, plasticity, hardness, strain rate sensitivity and other performance characteristics.

[0151] The effect of the above technical solution is: by comprehensively considering the performance characteristics of multiple aspects such as elastic modulus, yield strength, tensile strength, hardness and strain rate sensitivity parameters of the material, the performance of the material in the stamping process can be more accurately evaluated. This helps to reduce stamping problems caused by mismatched material properties and improve the forming quality and reliability of the product. The calculation of the material coefficient provides an important basis for the optimization of stamping parameters. By adjusting the stamping parameters to adapt to the performance characteristics of the material, the waste of materials and energy consumption can be reduced, and the use efficiency and life of the stamping machine can be improved. Accurate material evaluation and optimized stamping parameters help reduce the quality differences between products and improve the overall quality and market competitiveness of the products. At the same time, this also provides a more reliable foundation for subsequent processing and assembly processes. Using this technical solution, the material coefficient can be quickly calculated, and the corresponding stamping tests and optimizations can be carried out. This helps to shorten the product development cycle, speed up the time to market of new products, and improve the market responsiveness of enterprises. By calculating the material coefficient, the performance characteristics of the material can be more comprehensively understood, so that it is more flexible and accurate in selecting materials. This helps to enhance the material adaptability of the product and meet the needs of different customers and application scenarios.

[0152] On the other hand, the technical solution comprehensively evaluates the overall performance of the material by retrieving the material information of the bright trim, including multiple performance indicators such as elastic modulus, yield strength, tensile strength, hardness and strain rate sensitivity parameters. This comprehensive consideration method is more comprehensive and accurate than the evaluation of a single indicator, and can more truly reflect the actual application performance of the material. By calculating the first coefficient parameter and the second coefficient parameter, and further combining them to obtain the material coefficient, the technical solution provides a specific numerical indicator for the quantitative evaluation of material performance. The material coefficient can intuitively reflect the comprehensive performance level of the material, which is convenient for performance comparison and screening of different materials. In practical applications, according to the required performance requirements of the bright trim, the most suitable material can be selected by comparing the material coefficients of different materials. The higher the material coefficient, the better the comprehensive performance of the material, which can better meet specific application requirements. After understanding the comprehensive performance of the material, the use of the material can be further optimized. For example, in situations where high strength and high hardness are required, materials with higher material coefficients can be selected; in situations where high elasticity requirements are required, materials with larger elastic modulus and moderate material coefficients can be selected. As an important decorative component of vehicles such as automobiles, the performance of bright trim directly affects the overall quality of the product and the user experience. By accurately evaluating the material properties and selecting the right materials, it is possible to ensure that the bright trim has sufficient strength, hardness, elasticity and other properties, thereby improving the quality and reliability of the product. High-quality materials can reduce the wear and deformation of the bright trim during use, thereby extending its service life. This not only reduces the user's maintenance costs, but also improves the overall cost performance of the product. With the continuous improvement of material performance requirements, this technical solution provides new ideas and methods for material research and development. By continuously optimizing material formulas and processes, new materials with better performance can be developed to meet the ever-increasing market needs. The improvement of material performance will drive the upgrading and development of the entire industrial chain. For example, in the automotive manufacturing industry, the application of high-performance bright trim will promote innovation in automotive exterior and interior design, and improve the quality and competitiveness of the entire vehicle.

[0153] In summary, the technical effects of this technical solution in terms of performance indicators are mainly reflected in improving the accuracy of material evaluation, optimizing material selection and use, improving product quality and reliability, and promoting technological innovation and industrial upgrading. These technical effects will help promote the development and upgrading of related industries and enhance the overall performance and market competitiveness of products. At the same time, this technical solution provides an important basis for the precise determination of stamping parameters and the optimization of the stamping process by comprehensively considering multiple performance characteristics of materials and calculating material coefficients. This not only helps to improve the forming quality and market competitiveness of products, but also helps to reduce production costs and shorten product development cycles.

[0154] In one embodiment of the present invention, the initial stamping parameters for stamping the bright trim strip are obtained by using the depth coefficient and shape coefficient of the bright trim strip mold in combination with the material coefficient corresponding to the material information of the bright trim strip, including:

[0155] S2031, retrieving the depth coefficient, shape coefficient and material coefficient;

[0156] S2032, comparing the depth coefficient with a corresponding preset depth coefficient reference value to obtain a first comparison result;

[0157] S2033, comparing the shape coefficient with a corresponding preset shape coefficient reference value to obtain a second comparison result;

[0158] S2034, comparing the material coefficient with a corresponding preset material coefficient reference value to obtain a third comparison result;

[0159] S2035. Obtain an initial punching speed using the first comparison result, the second comparison result, and the third comparison result, wherein the initial punching speed is obtained by the following formula:

[0160]

[0161] Wherein, V0 represents the initial punching speed; Y 01 Indicates the depth coefficient; Y 02 represents the shape factor; K represents the material factor; Y 01c Indicates the depth coefficient reference value; Y 02c Indicates the shape factor reference value; K c Indicates the reference value of material coefficient;

[0162] S2036. Obtain an initial stamping pressure using the depth coefficient, shape coefficient, and material coefficient, wherein the initial stamping pressure is obtained by the following formula:

[0163]

[0164] Where P0 represents the initial stamping pressure; Y 01 Indicates the depth coefficient; Y 02 represents shape coefficient; K represents material coefficient.

[0165] The working principle of the above technical solution is as follows: the system retrieves the depth coefficient (Y01), shape coefficient (Y02) and material coefficient (K) of the bright trim mold from the previously calculated or stored data. These coefficients were obtained through a series of complex calculations and experiments, and reflect the geometric characteristics of the mold, the complexity of the shape, and the physical and mechanical properties of the material. The system compares the retrieved depth coefficient (Y01) with the preset depth coefficient reference value (Y01c) to obtain the first comparison result. The purpose of this step is to evaluate whether the depth characteristics of the mold meet the expected design requirements or standard values, so as to make corresponding adjustments to the stamping parameters later. Similarly, the system compares the shape coefficient (Y02) with the preset shape coefficient reference value (Y02c) to obtain the second comparison result. This step focuses on whether the shape complexity of the mold is moderate to ensure the fluidity and forming quality of the material during the stamping process. The system also compares the material coefficient (K) with the preset material coefficient reference value (Kc) to obtain the third comparison result. This step is to evaluate whether the selected material is suitable for the current stamping process and mold design to ensure the forming quality and performance of the product. After obtaining the three comparison results, the system will calculate the initial stamping speed (V0) based on these results and the corresponding formula. This step comprehensively considers the influence of the depth, shape and material properties of the mold on the stamping speed to ensure that the stamping process can proceed smoothly and achieve the desired effect. Finally, the system will calculate the initial stamping pressure (P0) based on the depth coefficient (Y01), shape coefficient (Y02) and material coefficient (K) and the corresponding formula. The stamping pressure is an important parameter in the stamping process, which directly affects the degree of deformation and forming quality of the material. By comprehensively considering the geometric characteristics of the mold and the physical properties of the material, the appropriate stamping pressure can be calculated to ensure the forming accuracy and performance of the product.

[0166] The effect of the above technical solution is: by comprehensively considering the depth coefficient, shape coefficient and material coefficient of the mold, the initial stamping speed and stamping pressure can be calculated more accurately. This helps to reduce the uncertainty and error in the stamping process and improve the forming quality and dimensional accuracy of the product. Adjusting the stamping parameters according to the geometric characteristics of the mold and the physical properties of the material can optimize the stamping process, reduce material waste and energy consumption. At the same time, it can also improve the use efficiency and life of the stamping machine. Accurate stamping parameters and optimized stamping processes help reduce the quality differences between products and improve the overall quality and market competitiveness of products. This is especially important for industries that require high-precision and high-quality products. Using this technical solution, the initial stamping parameters can be quickly calculated, and corresponding stamping tests and optimizations can be carried out. This helps to shorten the product development cycle, speed up the time to market of new products, and improve the market responsiveness of enterprises. This technical solution comprehensively considers multiple factors such as the depth, shape and material properties of the mold, so it has strong process adaptability. It can be applied to different types of stamping processes and mold designs to meet the needs of different customers and application scenarios.

[0167] On the other hand, when obtaining the initial stamping parameters, the technical solution comprehensively considers the depth coefficient, shape coefficient of the bright trim mold and the material coefficient corresponding to the material information of the bright trim. This comprehensive evaluation method is more comprehensive than considering a single factor, and can more accurately reflect the actual needs of the bright trim stamping process. By comparing the depth coefficient, shape coefficient and material coefficient with their respective corresponding preset reference values, the technical solution can more accurately determine the degree of influence of these parameters on the initial stamping parameters. This comparison method helps to eliminate errors caused by parameter fluctuations and improve the accuracy of stamping parameters. The initial stamping speed is one of the key parameters in the stamping process and directly affects the quality and production efficiency of stamped parts. The technical solution calculates the initial stamping speed through a formula, which can ensure the stability and controllability of the speed during the stamping process, thereby optimizing the stamping process and improving the quality and production efficiency of stamped parts. The initial stamping pressure is another important parameter in the stamping process, which determines the forming effect of the stamped parts and the service life of the mold. This technical solution calculates the initial stamping pressure through a formula, which can achieve precise control of the stamping pressure and avoid problems such as deformation, cracking or mold damage of stamped parts caused by excessive or insufficient pressure. Accurate stamping parameters can ensure that stamped parts are subjected to uniform and appropriate pressure and speed during the forming process, thereby avoiding defects and flaws. This helps to improve the overall quality and reliability of stamped parts and meet users' expectations and requirements for products. Reasonable stamping parameters can reduce wear and impact on the mold, thereby extending the service life of the mold. This not only reduces production costs, but also improves production efficiency and product quality stability. This technical solution provides new ideas and methods for the setting of stamping parameters and promotes the innovation and development of stamping technology. By continuously optimizing the calculation method and formula of stamping parameters, the quality and production efficiency of stamping parts can be further improved, and the upgrading and development of related industries can be promoted. Accurate and efficient stamping parameter setting can improve the production capacity and product quality of enterprises, thereby enhancing the market competitiveness of enterprises. This helps enterprises stand out in the fierce market competition and win more market share and customer trust.

[0168] In summary, the technical effects of this technical solution in terms of performance indicators are mainly reflected in improving the accuracy of stamping parameters, optimizing the stamping process, improving product quality and reliability, and promoting technological innovation and industrial upgrading. These technical effects will help promote the development and upgrading of related industries and enhance the overall performance and market competitiveness of products. At the same time, this technical solution calculates the initial stamping parameters by comprehensively considering the depth coefficient, shape coefficient and material coefficient of the mold, which has the advantages of high accuracy, good optimization effect, stable product quality, short development cycle and strong process adaptability.

[0169] In one embodiment of the present invention, a stamping operation is performed on a bright trim strip original sheet material according to the initial stamping parameters, including:

[0170] S301, extracting the initial stamping parameters, wherein the initial stamping parameters include an initial stamping speed and an initial stamping pressure;

[0171] S302, inputting the initial stamping parameters into a stamping control module for stamping springback;

[0172] S303, performing a stamping operation on the bright trim strip original plate through the stamping control module.

[0173] The stamping control module performs stamping operations on the bright trim strip original plate, including:

[0174] A first pressure sensor is arranged on the surface where the mold contacts the plate;

[0175] A second pressure sensor is installed between the mold clamping limit blocks;

[0176] Punch the sheet metal according to the initial punching speed and initial punching pressure;

[0177] When the stamping die is pressed down to the lower clamping die according to the initial stamping speed and the initial stamping pressure, the induction heating coil arranged in the angular deformation area of ​​the die is controlled to heat the sheet pressed into the die;

[0178] When the pressure reading of the second pressure sensor is 0, the pressure value of the first pressure sensor is the response force of the plate, and the pressure value of the first pressure sensor is compared with a preset pressure threshold;

[0179] When the pressure value of the first pressure sensor is lower than a preset pressure threshold, the inductor coil is controlled to stop heating and the plate is cooled;

[0180] When the plate is cooled, the mold is controlled to be lifted and the bright decorative strip is taken out.

[0181] The working principle of the above technical solution is as follows: the system extracts initial stamping parameters from previously calculated or stored data, including initial stamping speed and initial stamping pressure. These parameters are obtained through a series of complex calculations and experiments to ensure that the stamping process can proceed smoothly and achieve the desired effect. The initial stamping parameters are input into the stamping control module of the stamping rebound. The extracted initial stamping parameters are then input into the stamping control module of the stamping machine. This module is the core part of the stamping machine, which is responsible for accurately controlling the operation of the stamping machine according to the input parameters. In particular, this module also takes into account the impact of stamping rebound, that is, the elastic recovery of the material after stamping. By accurately controlling the stamping speed and pressure, and taking into account the rebound effect, it can be ensured that the stamped bright trim has a precise size and shape. Under the precise control of the stamping control module, the stamping machine starts to stamp the bright trim original sheet. According to the preset initial stamping speed and pressure, the stamping machine applies the corresponding force and speed to the sheet to cause it to plastically deform and form the desired bright trim shape. During this process, the stamping control module will monitor the status of the stamping process in real time and make adjustments as needed to ensure that the stamped bright trim meets the design requirements.

[0182] Furthermore, a first pressure sensor is provided on the contact surface between the mold and the plate to monitor the pressure change between the mold and the plate in real time. A second pressure sensor is provided between the mold clamping limit blocks to detect whether the mold is completely clamped. The plate is punched according to the preset initial punching speed and initial punching pressure to form the desired shape of the plate in the mold. When the punching mold is pressed down to the lower clamping (i.e., the mold is completely closed), the inductive heating coil provided in the mold angle deformation area is controlled to heat the plate. This helps to improve the fluidity and formability of the plate and reduce stress and deformation during the punching process. When the pressure reading of the second pressure sensor is 0, it means that the mold is completely clamped. At this time, the pressure value of the first pressure sensor is the response force of the plate on the mold. The pressure value of the first pressure sensor is compared with the preset pressure threshold to evaluate the forming effect of the plate and whether further heat treatment is required. If the pressure value of the first pressure sensor is lower than the preset pressure threshold, it means that the forming effect of the plate is not ideal (possibly due to insufficient material fluidity caused by insufficient temperature). At this time, the inductive coil is controlled to stop heating and the plate is cooled to fix its shape. When the sheet is cooled, the mold is controlled to lift up and the formed bright trim is taken out.

[0183] The effect of the above technical solution is: by accurately controlling the stamping speed and pressure, and considering the influence of stamping rebound, the precision and dimensional stability of the stamped bright trim can be significantly improved. This helps to reduce the scrap rate and rework rate and improve production efficiency. Accurate stamping parameters and stamping control can ensure that the material is fully utilized during the stamping process and reduce material waste. This is of great significance for reducing production costs and improving the economic benefits of enterprises. Accurate stamping operations and optimized stamping parameters can ensure that the stamped bright trim has consistent size, shape and performance. This helps to improve the overall quality and market competitiveness of the product. Through precise stamping control and parameter setting, the stability and consistency of the stamping process can be ensured. This helps to reduce uncertainty and volatility in the production process and improve production efficiency and product quality. After the initial stamping parameters are input into the stamping control module, the stamping machine can automatically perform the stamping operation. This reduces the difficulty and skill requirements of the operator, making the production process easier to control and manage.

[0184] On the other hand, by setting up pressure sensors and inductive heating coils, the forming state of the sheet can be monitored in real time and the heating temperature can be adjusted, thereby improving the forming quality and precision of the bright trim. Accurately controlling the temperature and pressure during the stamping process can reduce waste caused by material deformation or cracking. The automated control process reduces manual intervention and improves production efficiency and consistency. Proper heating treatment can improve the fluidity and formability of the material, and also help enhance the mechanical properties and durability of the material. The solution can adjust parameters such as stamping speed, stamping pressure, and heating temperature according to different sheet types and thicknesses to meet different production needs.

[0185] In summary, this technical solution can significantly improve the precision and quality of the stamped bright trim strips by precisely controlling the stamping parameters and considering the impact of stamping springback, optimize material utilization, reduce production costs, and improve production efficiency and market competitiveness. At the same time, this technical solution can achieve efficient and precise stamping of the bright trim strip original sheet by precisely controlling parameters such as temperature, pressure and time during the stamping process, thereby improving product quality and production efficiency.

[0186] In one embodiment of the present invention, during the stamping process, the temperature and deformation amplitude of the sheet material during the stamping process are monitored in real time, and the initial stamping parameters of the bright trim stamping are dynamically adjusted according to the temperature and deformation amplitude of the sheet material during the stamping process, including:

[0187] S401, during the stamping process, real-time monitoring of the temperature and deformation amplitude of the sheet material during the stamping process;

[0188] S402, comparing the temperature of the plate during the stamping process with a preset temperature threshold;

[0189] S403, when the temperature of the plate during the stamping process exceeds a preset temperature threshold, but the deformation amplitude during the stamping process does not exceed a preset deformation amplitude threshold, the initial stamping speed is adjusted to obtain an adjusted first stamping speed;

[0190] The adjusted first punching speed is obtained by the following formula:

[0191]

[0192] Among them, V 01 represents the first punching speed after adjustment; V0 represents the initial punching speed; T represents the sheet temperature during the punching process; T y represents the preset temperature threshold; A represents the deformation amplitude during the stamping process corresponding to the moment when the sheet temperature exceeds the preset temperature threshold; A max Indicates the preset maximum allowable deformation range;

[0193] S404, when the deformation amplitude during the stamping process exceeds a preset deformation amplitude threshold, but the temperature of the plate during the stamping process does not exceed a preset temperature threshold, the initial stamping pressure is adjusted to obtain an adjusted first stamping pressure;

[0194] The adjusted first stamping pressure is obtained by the following formula:

[0195]

[0196] Among them, P 01 represents the first stamping pressure after adjustment; P0 represents the initial stamping pressure; A d Indicates the deformation amplitude value corresponding to the deformation amplitude threshold value exceeding the preset value; T d Indicates the sheet temperature during the stamping process at the time when the deformation amplitude value exceeds the preset deformation amplitude threshold; T max Indicates the preset maximum allowable plate temperature; A y Indicates the preset deformation amplitude threshold;

[0197] S405. When the deformation amplitude during the stamping process exceeds a preset deformation amplitude threshold, and the plate temperature during the stamping process is equal to a preset temperature threshold, the initial stamping pressure and the initial stamping speed are adjusted simultaneously to obtain an adjusted second stamping pressure and a second stamping speed.

[0198] The working principle of the above technical solution is as follows: During the stamping process, the system monitors the temperature and deformation amplitude of the plate in real time through sensors. These data are collected in real time and transmitted to the control system for analysis. The control system compares the real-time monitored plate temperature with the preset temperature threshold. At the same time, the real-time monitored deformation amplitude is also compared with the preset deformation amplitude threshold.

[0199] Temperature exceeds the limit, but deformation does not exceed the limit: When the sheet temperature exceeds the preset temperature threshold, but the deformation amplitude does not exceed the preset deformation amplitude threshold, the system will adjust the initial stamping speed according to the formula to obtain the adjusted first stamping speed. The purpose of the adjustment is to reduce the impact of the sheet temperature on the stamping process while keeping the deformation amplitude within the allowable range.

[0200] Deformation exceeds the limit, but temperature does not exceed the limit: When the deformation amplitude exceeds the preset deformation amplitude threshold, but the plate temperature does not exceed the preset temperature threshold, the system will adjust the initial stamping pressure according to the formula to obtain the adjusted first stamping pressure. The purpose of the adjustment is to control the deformation amplitude while keeping the plate temperature within the allowable range to ensure the quality of the stamped parts.

[0201] Temperature and deformation both exceed the limit: When the temperature and deformation amplitude of the sheet metal exceed their respective thresholds at the same time, the system will adjust the initial stamping pressure and initial stamping speed at the same time to obtain the adjusted second stamping pressure and second stamping speed. This dual adjustment is designed to simultaneously control the sheet metal temperature and deformation amplitude to ensure that the stamping process is carried out in the best condition.

[0202] The effect of the above technical solution is: by real-time monitoring and adjustment of stamping parameters, it can be ensured that the temperature and deformation amplitude of the sheet during the stamping process are always kept within the allowable range, thereby improving the precision and dimensional stability of the stamped parts. Accurate stamping parameter adjustment can reduce material waste, improve material utilization, and reduce production costs. Dynamic adjustment of stamping parameters can ensure that stamped parts have consistent size, shape and performance, thereby improving the overall quality of the product. Through real-time monitoring and adjustment, the stability and consistency of the stamping process can be ensured, and the uncertainty and volatility in the production process can be reduced. Accurate stamping parameter adjustment and real-time monitoring can reduce scrap and rework, and improve production efficiency and economic benefits. This technical solution can be adjusted according to different sheet materials and stamping requirements, and has strong adaptability and flexibility.

[0203] On the other hand, by real-time monitoring of the sheet temperature and deformation amplitude during the stamping process, the technical solution can dynamically adjust the initial stamping parameters according to the real-time data. This real-time monitoring and dynamic adjustment method is more flexible than traditional fixed parameter stamping, and can adapt to changes in different stamping conditions and material properties. Accurately adjusting the stamping parameters according to the real-time monitoring results of the sheet temperature and deformation amplitude can ensure the forming effect and dimensional accuracy of the sheet during the stamping process. This helps to reduce the scrap rate and rework rate of stamped parts and improve production efficiency and product quality. When the sheet temperature exceeds the preset temperature threshold, timely adjustment of the stamping speed can reduce the deformation, cracking and other defects of the sheet caused by overheating. This helps to protect the mold and stamping parts and extend their service life. By adjusting the stamping pressure to control the deformation amplitude of the sheet, it can ensure that the stamping parts are subjected to uniform pressure during the forming process, avoiding problems such as local excessive deformation or insufficient deformation. This helps to improve the overall quality and consistency of stamping parts. Real-time monitoring and dynamic adjustment of stamping parameters can reduce downtime caused by unqualified stamping parts. This helps to improve the continuity and stability of the production line and improve production efficiency. By precisely controlling the stamping speed and pressure, safety issues such as mold damage or stamping parts flying out due to improper stamping parameters can be avoided. This helps protect the safety of operators and reduce the risk of production accidents. This technical solution combines real-time monitoring and dynamic adjustment technology to provide new ideas and methods for the intelligent development of the stamping process. By continuously optimizing algorithms and introducing new sensor technologies, the intelligence level and automation of the stamping process can be further improved. Accurate and efficient stamping process control can improve the production capacity and product quality of enterprises, thereby enhancing the market competitiveness of enterprises. This helps enterprises stand out in the fierce market competition and win more market share and customer trust.

[0204] In summary, the technical effects of this technical solution in terms of performance indicators are mainly reflected in improving the flexibility and adaptability of the stamping process, optimizing the quality of stamping parts, improving production efficiency and safety, and promoting technological innovation and industrial upgrading. These technical effects will help promote the development and upgrading of related industries and enhance the overall performance and market competitiveness of products. At the same time, this technical solution can significantly improve the accuracy and quality of stamping parts, optimize material utilization, reduce production costs, and improve production efficiency and market competitiveness by real-time monitoring of the sheet temperature and deformation amplitude during the stamping process and dynamically adjusting the initial stamping parameters based on these real-time data.

[0205] In one embodiment of the present invention, when the deformation amplitude during the stamping process exceeds a preset deformation amplitude threshold, and the temperature of the plate during the stamping process is equal to the preset temperature threshold, the initial stamping pressure and the initial stamping speed are adjusted simultaneously to obtain the adjusted second stamping pressure and the second stamping speed, including:

[0206] S4051. When the deformation amplitude during the stamping process exceeds a preset deformation amplitude threshold, and the plate temperature during the stamping process is equal to a preset temperature threshold, the difference between the deformation amplitude and the preset deformation amplitude threshold is retrieved as first difference data, and the difference between the plate temperature and the preset plate temperature threshold is retrieved as second difference data;

[0207] S4052, comparing the first difference data with a preset first difference threshold;

[0208] S4053: when the first difference data exceeds a preset first difference threshold, calling a first weight parameter corresponding to the deformation amplitude as a target weight value of the deformation amplitude;

[0209] S4054: when the first difference data does not exceed a preset first difference threshold, calling a second weight parameter corresponding to the deformation amplitude as a target weight value of the deformation amplitude; wherein the first weight parameter corresponding to the deformation amplitude is greater than the second weight parameter corresponding to the deformation amplitude;

[0210] S4055: when the second difference data exceeds a preset second difference threshold, calling a first weight parameter corresponding to the plate temperature as a target weight value of the plate temperature;

[0211] S4056: When the second difference data does not exceed the preset second difference threshold, the second weight parameter corresponding to the plate temperature is retrieved as the target weight value of the plate temperature; wherein the first weight parameter corresponding to the plate temperature is greater than the second weight parameter corresponding to the plate temperature;

[0212] S4057, obtaining an adjusted second punching pressure and a second punching speed by using the first difference data and the second difference data in combination with a target weight value corresponding to the deformation amplitude and a target weight value corresponding to the plate temperature;

[0213] The adjusted second stamping pressure is obtained by the following formula:

[0214]

[0215] Among them, V 02 represents the adjusted second punching speed; V0 represents the initial punching speed; w a and w t They represent the target weight value of deformation amplitude and the target weight value of plate temperature respectively; C a and C t Respectively represent the first difference data and the second difference data;

[0216] Furthermore, the adjusted second punching speed is obtained by the following formula:

[0217]

[0218] Among them, P 02 represents the adjusted second punching speed; P0 represents the initial punching pressure; w a and w t They represent the target weight value of deformation amplitude and the target weight value of plate temperature respectively; C a and C t Represent the first difference data and the second difference data respectively.

[0219] The working principle of the above technical solution is: when the deformation amplitude during the stamping process exceeds the preset deformation amplitude threshold, and the plate temperature also exceeds the preset temperature threshold, the system first calculates the difference between the deformation amplitude and the preset deformation amplitude threshold (first difference data) and the difference between the plate temperature and the preset temperature threshold (second difference data). Then, the system compares the first difference data with the preset first difference threshold, and selects the target weight value of the deformation amplitude according to the comparison result. If the first difference data exceeds the first difference threshold, the first weight parameter corresponding to the deformation amplitude is selected as the target weight value; if it does not exceed, the second weight parameter corresponding to the deformation amplitude is selected as the target weight value. Similarly, the system compares the second difference data with the preset second difference threshold, and selects the target weight value of the plate temperature according to the comparison result. If the second difference data exceeds the second difference threshold, the first weight parameter corresponding to the plate temperature is selected as the target weight value; if it does not exceed, the second weight parameter corresponding to the plate temperature is selected as the target weight value. Finally, the system uses the first difference data, the second difference data, and the target weight values ​​of the deformation amplitude and the sheet temperature to calculate the adjusted second stamping pressure and the second stamping speed through a specific formula.

[0220] The effect of the above technical solution is: by dynamically adjusting the stamping pressure and stamping speed, the deformation amplitude and sheet temperature during the stamping process can be more effectively controlled, thereby improving the precision and dimensional stability of the stamped parts. This technical solution can flexibly adjust the parameters according to the actual situation in the stamping process, so that the stamping process is more optimized and unnecessary waste and loss are reduced. Accurate parameter adjustment can ensure that the stamped parts have consistent size, shape and performance, thereby improving the overall quality of the product. Through real-time monitoring and adjustment, the stability and consistency of the stamping process can be ensured, and the uncertainty and volatility in the production process can be reduced. Accurate parameter adjustment and real-time monitoring can reduce scrap and rework, and improve production efficiency and economic benefits. This technical solution reduces the difficulty and complexity of manual operation and improves production efficiency and accuracy by introducing an intelligent and automated adjustment mechanism.

[0221] On the other hand, the technical solution realizes precise control of the stamping process by real-time monitoring of the deformation amplitude and sheet temperature during the stamping process, and dynamically adjusting according to the difference between these parameters and the preset threshold. This control method can ensure that the stamping parts are always in the best state during the forming process, thereby improving the quality and consistency of the product. By introducing the target weight values ​​of the deformation amplitude and sheet temperature, the technical solution can make targeted adjustments according to the importance of these two parameters. When the difference of a certain parameter exceeds the preset threshold, its corresponding weight value will increase, which will play a greater role in adjusting the stamping parameters. This weight distribution method makes the adjustment more reasonable and effective. When the deformation amplitude exceeds the preset threshold, by adjusting the stamping pressure and speed, the deformation amplitude of the sheet can be effectively controlled to avoid problems such as excessive deformation or cracking. This helps to protect the mold and stamping parts and improve the yield and quality of the product. When the sheet temperature exceeds the preset threshold, timely adjustment of the stamping parameters can reduce the deformation, cracking and other defects of the sheet caused by overheating. By comprehensively considering the influence of the deformation amplitude and sheet temperature, the technical solution can ensure that the stamping parts are subjected to uniform and appropriate pressure and speed during the forming process. At the same time, by precisely controlling the stamping process, this technical solution can significantly reduce the scrap rate, improve production efficiency and resource utilization. This helps to reduce production costs and increase the economic benefits of the enterprise. During the stamping process, timely adjustment of stamping parameters can avoid safety issues such as mold damage or stamping parts flying out due to improper parameters. This dynamic adjustment method helps to protect the safety of operators and reduce the risk of production accidents. This technical solution combines technologies such as real-time monitoring, dynamic adjustment and weight parameter allocation to provide new ideas and methods for the intelligent development of the stamping process. By continuously optimizing algorithms and introducing new sensor technologies, the intelligence level and automation degree of the stamping process can be further improved. By achieving precise control of the stamping process and optimizing the quality of stamping parts, this technical solution can improve the production capacity and product quality of the enterprise, thereby enhancing the market competitiveness of the enterprise. This helps enterprises stand out in the fierce market competition and win more market share and customer trust.

[0222] In summary, the technical effects of this technical solution in terms of performance indicators are mainly reflected in improving the precise control of the stamping process, optimizing the quality of stamping parts, improving production efficiency and safety, and promoting technological innovation and industrial upgrading. These technical effects will help promote the development and upgrading of related industries and enhance the overall performance and market competitiveness of products. At the same time, by dynamically adjusting the stamping pressure and stamping speed, this technical solution can optimize the stamping process according to the deformation amplitude and sheet temperature during the actual stamping process, improve the precision and quality of stamping parts, reduce the scrap rate and rework rate, and enhance the stability and intelligence level of the process.

[0223] The embodiment of the present invention provides a stamping rebound control system suitable for processing vehicle bright trim strips, such as Figure 2 As shown, the stamping springback control system suitable for processing vehicle bright trim strips includes:

[0224] An information acquisition module is used to scan the mold of the bright trim strip to obtain depth information and shape information of the bright trim strip mold;

[0225] A stamping parameter initial setting module, used to obtain initial stamping parameters for stamping the bright trim strip according to the depth information and shape information of the bright trim strip mold and the material information of the bright trim strip;

[0226] A stamping control module, used for performing a stamping operation on the bright trim strip original sheet material according to the initial stamping parameters;

[0227] The stamping parameter dynamic adjustment module is used to dynamically adjust the initial stamping parameters of the bright trim stamping according to the sheet temperature and deformation amplitude during the stamping process by real-time monitoring the sheet temperature and deformation amplitude during the stamping process.

[0228] The working principle of the above technical solution is as follows: First, use a scanning device to accurately scan the mold of the bright trim strip to obtain the depth information and shape information of the mold. This information is the basis for the subsequent formulation of stamping parameters. At the same time, combined with the material information used for the bright trim strip, comprehensive data support is provided for the formulation of initial stamping parameters. According to the depth, shape and material information of the mold, the initial stamping parameters for the bright trim strip stamping are formulated through professional calculation and analysis software. According to the formulated initial stamping parameters, the original sheet of the bright trim strip is stamped. During the stamping process, sensors are used to monitor the temperature and deformation amplitude of the sheet in real time. Changes in the sheet temperature will affect the fluidity and resilience of the material, while the deformation amplitude directly reflects the forming of the stamped parts. According to the real-time monitored sheet temperature and deformation amplitude, the initial stamping parameters are dynamically adjusted. If the sheet temperature is too high or the deformation amplitude is too large, it may be necessary to reduce the stamping speed or increase the die gap to reduce the rebound; conversely, if the sheet temperature is too low or the deformation amplitude is too small, it may be necessary to increase the stamping speed or reduce the die gap to improve the forming quality.

[0229] The effect of the above technical solution is: by real-time monitoring and dynamic adjustment of stamping parameters, it is possible to ensure that the stamping parts maintain a stable temperature and deformation state during the forming process, thereby improving the forming quality. Forming defects such as cracks, wrinkles, deformation, etc. caused by uneven material flow or excessive rebound are reduced. The rebound amount of stamping parts can be effectively reduced by precise control and dynamic adjustment of stamping parameters. This helps to ensure that the stamping parts maintain accurate size and shape during subsequent processing and assembly, and improve the assembly quality and appearance of the whole vehicle. The method reduces manual intervention and trial and error costs by automatically monitoring and adjusting stamping parameters. At the same time, due to the improvement of forming quality and rebound, production losses caused by rework and scrapping are also reduced, thereby improving production efficiency. By improving forming quality and reducing rebound, the appearance effect and assembly accuracy of vehicle bright trim strips can be significantly improved. This helps to enhance the market competitiveness of products and meet consumers' expectations and needs for high-quality automotive appearance.

[0230] In summary, the stamping springback control method suitable for vehicle bright trim processing has a significant working principle and technical effect, and is of great significance for improving the forming quality and production efficiency of automobile stamping parts.

[0231] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A stamping springback control method suitable for processing vehicle bright trim strips, characterized in that: The stamping springback control method applicable to vehicle bright trim processing includes: Scanning the mold of the bright trim strip to obtain the depth information and shape information of the bright trim strip mold; Acquire initial stamping parameters for stamping the bright trim strip according to the depth information and shape information of the bright trim strip mold and the material information of the bright trim strip; Performing a stamping operation on the bright trim strip original sheet material according to the initial stamping parameters; During the stamping process, the temperature and deformation amplitude of the sheet material during the stamping process are monitored in real time, and the initial stamping parameters of the bright trim strip stamping are dynamically adjusted according to the temperature and deformation amplitude of the sheet material during the stamping process.

2. The stamping springback control method for vehicle bright trim processing according to claim 1 is characterized in that: Scan the bright trim mold to obtain the depth information and shape information of the bright trim mold, including: Setting scanning parameters for the laser scanner, wherein the scanning parameters include resolution parameters, scanning speed parameters and scanning range parameters; Scanning the bright trim mold using the laser scanner to obtain a three-dimensional model of the bright trim mold; Acquiring depth information of the bright trim mold according to the three-dimensional model of the bright trim mold, wherein the depth information includes depth levels and depth values ​​corresponding to each depth level; The shape information of the bright trim strip mold is acquired according to the three-dimensional model of the bright trim strip mold, wherein the shape information includes a maximum curvature value of a contour of the bright trim strip and a maximum curvature value of a curved surface.

3. The stamping springback control method for vehicle bright trim processing according to claim 1 is characterized in that: According to the depth information and shape information of the bright trim mold and the material information of the bright trim, initial stamping parameters for stamping the bright trim are obtained, including: Extracting the depth information and shape information of the bright trim mold, and obtaining the depth coefficient and shape coefficient by using the depth information and shape information of the bright trim mold; Obtaining a material coefficient using material information of the bright trim strip; Initial stamping parameters for stamping the bright trim strip are obtained by using the depth coefficient and shape coefficient of the bright trim strip mold in combination with the material coefficient corresponding to the material information of the bright trim strip, wherein the initial stamping parameters include an initial stamping speed and an initial stamping pressure.

4. The stamping springback control method for vehicle bright trim processing according to claim 3 is characterized in that: Extracting the depth information and shape information of the bright trim mold, and obtaining the depth coefficient and shape coefficient by using the depth information and shape information of the bright trim mold, including: Retrieving depth information of the bright trim mold, wherein the depth information includes depth levels and depth values ​​corresponding to each depth level; Obtaining a depth coefficient using the depth information of the bright trim mold; The depth coefficient is obtained by the following formula: Among them, Y 01 represents the depth coefficient; n represents the depth level; i represents the index number corresponding to the depth level; D i Indicates the deepest depth value corresponding to the i-th depth level; α i，i+1 represents the transition slope between the i-th depth level and the i+1-th depth level; α di represents the depth bottom slope corresponding to the i-th depth level; Retrieving shape information of the bright trim mold; wherein the shape information includes a maximum curvature value of a contour of the bright trim and a maximum curvature value of a curved surface; Obtaining a shape coefficient using the shape information of the bright trim strip; The shape coefficient is obtained by the following formula: Among them, Y 02 Represents shape coefficient; C p and C s Indicates the maximum curvature value and the maximum curvature value of the surface.

5. The stamping springback control method for processing vehicle bright trim strips according to claim 3, characterized in that: The material coefficient is obtained by using the material information of the bright trim strip, including: Retrieving material information of the bright trim strip to obtain a material coefficient, wherein the material information of the bright trim strip includes elastic modulus, yield strength, tensile strength, hardness, and strain rate sensitivity parameters; The first coefficient parameter is obtained by using the elastic modulus and hardness; wherein the first coefficient parameter is obtained by the following formula: Among them, K 01 represents the first coefficient parameter; E represents the elastic modulus; E c Indicates the preset elastic modulus reference value; H indicates the hardness value; H c Indicates the preset hardness reference value; The first coefficient parameter is obtained by using the yield strength, tensile strength and strain rate sensitivity parameters; wherein the second coefficient parameter is obtained by the following formula: Among them, K 02 represents the second coefficient parameter; Q represents the yield strength; L represents the tensile strength; m represents the strain rate sensitivity parameter; The material coefficient is obtained by using the first coefficient parameter and the second coefficient parameter; wherein the material coefficient is obtained by the following formula: Where, K represents the material coefficient; K 01 Represents the first coefficient parameter; K 02 Represents the second coefficient parameter.

6. The stamping springback control method for vehicle bright trim processing according to claim 3, characterized in that: The initial stamping parameters of the bright trim strip are obtained by using the depth coefficient and shape coefficient of the bright trim strip mold in combination with the material coefficient corresponding to the material information of the bright trim strip, including: Retrieving the depth coefficient, shape coefficient and material coefficient; Comparing the depth coefficient with a corresponding preset depth coefficient reference value to obtain a first comparison result; Comparing the shape coefficient with a corresponding preset shape coefficient reference value to obtain a second comparison result; Comparing the material coefficient with a corresponding preset material coefficient reference value to obtain a third comparison result; The initial punching speed is obtained by using the first comparison result, the second comparison result and the third comparison result, wherein the initial punching speed is obtained by the following formula: Wherein, V0 represents the initial punching speed; Y 01 Indicates the depth coefficient; Y 02 represents the shape factor; K represents the material factor; Y 01c Indicates the depth coefficient reference value; Y 02c Indicates the shape factor reference value; K c Indicates the reference value of material coefficient; The initial stamping pressure is obtained by using the depth coefficient, shape coefficient and material coefficient, wherein the initial stamping pressure is obtained by the following formula: Where P0 represents the initial stamping pressure; Y 01 Indicates the depth coefficient; Y 02 represents shape coefficient; K represents material coefficient.

7. The stamping springback control method for vehicle bright trim processing according to claim 1, characterized in that: The bright trim strip original sheet is punched according to the initial punching parameters, including: Extracting the initial stamping parameters, wherein the initial stamping parameters include an initial stamping speed and an initial stamping pressure; Inputting the initial stamping parameters into a stamping control module for stamping springback; Performing a stamping operation on the bright trim strip original plate by means of the stamping control module; The stamping control module performs stamping operations on the bright trim strip original plate, including: A first pressure sensor is arranged on the surface where the mold contacts the plate; A second pressure sensor is installed between the mold clamping limit blocks; Punch the sheet metal according to the initial punching speed and initial punching pressure; When the stamping die is pressed down to the lower clamping die according to the initial stamping speed and the initial stamping pressure, the induction heating coil arranged in the angular deformation area of ​​the die is controlled to heat the sheet pressed into the die; When the pressure reading of the second pressure sensor is 0, the pressure value of the first pressure sensor is the response force of the plate, and the pressure value of the first pressure sensor is compared with a preset pressure threshold; When the pressure value of the first pressure sensor is lower than a preset pressure threshold, the inductor coil is controlled to stop heating and the plate is cooled; When the sheet material is cooled, the mold is controlled to be lifted and the bright decorative strip is taken out.

8. The stamping springback control method for vehicle bright trim processing according to claim 1, characterized in that: During the stamping process, the temperature and deformation amplitude of the sheet material during the stamping process are monitored in real time, and the initial stamping parameters of the bright trim strip stamping are dynamically adjusted according to the temperature and deformation amplitude of the sheet material during the stamping process, including: During the stamping process, the temperature and deformation of the sheet metal during the stamping process are monitored in real time; comparing the temperature of the sheet during the stamping process with a preset temperature threshold; When the temperature of the plate during the stamping process exceeds a preset temperature threshold, but the deformation amplitude during the stamping process does not exceed a preset deformation amplitude threshold, the initial stamping speed is adjusted to obtain an adjusted first stamping speed; The adjusted first punching speed is obtained by the following formula: Among them, V 01 represents the first punching speed after adjustment; V0 represents the initial punching speed; T represents the sheet temperature during the punching process; T y represents the preset temperature threshold; A represents the deformation amplitude during the stamping process corresponding to the moment when the sheet temperature exceeds the preset temperature threshold; A max Indicates the preset maximum allowable deformation range; When the deformation amplitude during the stamping process exceeds a preset deformation amplitude threshold, but the temperature of the plate during the stamping process does not exceed a preset temperature threshold, the initial stamping pressure is adjusted to obtain an adjusted first stamping pressure; The adjusted first stamping pressure is obtained by the following formula: Among them, P 01 represents the first stamping pressure after adjustment; P0 represents the initial stamping pressure; A d Indicates the deformation amplitude value corresponding to the deformation amplitude threshold value exceeding the preset value; T d Indicates the sheet temperature during the stamping process at the time when the deformation amplitude value exceeds the preset deformation amplitude threshold; T max Indicates the preset maximum allowable plate temperature; A y Indicates the preset deformation amplitude threshold; When the deformation amplitude during the stamping process exceeds a preset deformation amplitude threshold, and the plate temperature during the stamping process is equal to a preset temperature threshold, the initial stamping pressure and the initial stamping speed are adjusted simultaneously to obtain an adjusted second stamping pressure and a second stamping speed.

9. The stamping springback control method for processing vehicle bright trim strips according to claim 8, characterized in that: When the deformation amplitude during the stamping process exceeds a preset deformation amplitude threshold, and the plate temperature during the stamping process is equal to the preset temperature threshold, the initial stamping pressure and the initial stamping speed are adjusted simultaneously to obtain the adjusted second stamping pressure and the second stamping speed, including: When the deformation amplitude during the stamping process exceeds a preset deformation amplitude threshold, and the plate temperature during the stamping process is equal to the preset temperature threshold, the difference between the deformation amplitude and the preset deformation amplitude threshold is retrieved as the first difference data, and the difference between the plate temperature and the preset plate temperature threshold is retrieved as the second difference data; Comparing the first difference data with a preset first difference threshold; When the first difference data exceeds a preset first difference threshold, a first weight parameter corresponding to the deformation amplitude is retrieved as a target weight value of the deformation amplitude; When the first difference data does not exceed the preset first difference threshold, the second weight parameter corresponding to the deformation amplitude is retrieved as the target weight value of the deformation amplitude; wherein the first weight parameter corresponding to the deformation amplitude is greater than the second weight parameter corresponding to the deformation amplitude; When the second difference data exceeds a preset second difference threshold, the first weight parameter corresponding to the plate temperature is retrieved as a target weight value of the plate temperature; When the second difference data does not exceed the preset second difference threshold, the second weight parameter corresponding to the plate temperature is retrieved as the target weight value of the plate temperature; wherein the first weight parameter corresponding to the plate temperature is greater than the second weight parameter corresponding to the plate temperature; Obtaining an adjusted second punching pressure and a second punching speed by using the first difference data and the second difference data in combination with a target weight value corresponding to the deformation amplitude and a target weight value corresponding to the plate temperature; The adjusted second stamping pressure is obtained by the following formula: Among them, V 02 represents the adjusted second punching speed; V0 represents the initial punching speed; w a and w t They represent the target weight value of deformation amplitude and the target weight value of plate temperature respectively; C a and C t Respectively represent the first difference data and the second difference data; Furthermore, the adjusted second punching speed is obtained by the following formula: Among them, P 02 represents the adjusted second punching speed; P0 represents the initial punching pressure; w a and w t They represent the target weight value of deformation amplitude and the target weight value of plate temperature respectively; C a and C t Represent the first difference data and the second difference data respectively.

10. A stamping rebound control system suitable for processing vehicle bright trim strips, characterized in that: The stamping springback control system suitable for processing vehicle bright trim strips includes: An information acquisition module is used to scan the mold of the bright trim strip to obtain depth information and shape information of the bright trim strip mold; A stamping parameter initial setting module, used to obtain initial stamping parameters for stamping the bright trim strip according to the depth information and shape information of the bright trim strip mold and the material information of the bright trim strip; A stamping control module, used for performing a stamping operation on the bright trim strip original sheet material according to the initial stamping parameters; The stamping parameter dynamic adjustment module is used to dynamically adjust the initial stamping parameters of the bright trim stamping according to the sheet temperature and deformation amplitude during the stamping process by real-time monitoring the sheet temperature and deformation amplitude during the stamping process.

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