Vehicle injection molding part assembling shape correcting method and device and storage medium

Abstract

The invention discloses a vehicle injection molding part assembling shape correction method and device and a storage medium, and relates to the technical field of mechanical simulation, and the method comprises the steps that according to the buckling deformation analysis result of a plurality of injection molding parts on a vehicle, the original offset of the plurality of injection molding parts on a corresponding matching surface of a mounting point is obtained; determining an effective offset according to the original offset; acquiring a deformation curve and a maximum stress curve of the matching surface obtained after applying a plurality of forces to the matching surface corresponding to the mounting point; and based on the effective offset, the deformation curve and the maximum stress curve, carrying out installation point reliability evaluation. And when the reliability evaluation of the mounting points is that the reliability evaluation is passed, mounting point offset distribution is performed according to the deformation curve and the effective offset, and the assembly shape correction deformation of each injection molding part is obtained. Through a mechanical simulation technology, buckling deformation of the injection molding part is accurately analyzed, the offset of the mounting point is effectively determined, and then accurate assembly correction of the injection molding part is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mechanical simulation, in particular to a vehicle injection molding part assembly correction method and device and a storage medium. BACKGROUND

[0002] The mold flow analysis software can predict the warping deformation caused by material shrinkage or uneven cooling during the injection molding process. By combining with the mechanical analysis software, the influence of the warping deformation on the mechanical properties of the entire structure can be analyzed, which is more consistent with the actual working conditions. This is an important analysis direction in the field of injection molding part joint simulation, which can guide the solution of the assembly problems and the mechanical performance decline problems caused by the warping deformation of complex injection molding assemblies.

[0003] At present, the mechanical simulation after the warping deformation is mainly simulation analysis on a single injection molding part. In the face of the complex scene of the mechanical simulation of multiple injection molding parts after the warping deformation on the vehicle, it is currently impossible to realize the assembly of the injection molding parts after the warping deformation. The simulation analysis result of a single injection molding part is difficult to accurately reflect the real state of the entire assembly system. This may lead to problems such as assembly mismatch and substandard mechanical performance in the actual assembly process. SUMMARY

[0004] The main purpose of the present application is to provide a vehicle injection molding part assembly correction method and device and a storage medium, which aims to solve the technical problem that the current mechanical simulation after the warping deformation of injection molding parts cannot be applied to the complex scene of the coordinated assembly of multiple injection molding parts.

[0005] To achieve the above-mentioned purpose, the present application provides a vehicle injection molding part assembly correction method, which comprises: obtaining the original offset of multiple injection molding parts on the corresponding mating surface of the mounting point according to the warping deformation analysis result of the multiple injection molding parts on the vehicle; determining the effective offset according to the original offset; obtaining the deformation curve and the maximum stress curve of the mating surface after multiple forces are applied to the corresponding mating surface of the mounting point; performing mounting point reliability evaluation based on the effective offset, the deformation curve and the maximum stress curve; when the mounting point reliability evaluation is a reliability evaluation pass, performing mounting point offset distribution according to the deformation curve and the effective offset to obtain the assembly correction deformation amount of each injection molding part.

[0006] In an embodiment, when the mounting point reliability evaluation is a reliability evaluation pass, the step of performing mounting point offset distribution according to the deformation curve and the effective offset comprises: determining a balance point force at the mounting point according to the deformation curve and the effective offset; calculating an offset of each mating surface at the mounting point according to the deformation curve under the balance point force; determining an offset direction according to the offset of each mating surface; distributing the mounting point offset according to the offset of each mating surface and the offset direction.

[0007] In an embodiment, the step of determining a balance point force at the mounting point according to the deformation curve and the effective offset comprises: obtaining an offset relationship between mating surfaces corresponding to multiple injection molded parts at the mounting point; calculating a balance point force at the mounting point according to the offset relationship, the effective offset, and deformation curves of mating surfaces corresponding to multiple injection molded parts.

[0008] In an embodiment, the step of performing mounting point reliability evaluation based on the effective offset, the deformation curve, and the maximum stress curve comprises: determining a balance point force at the mounting point according to the deformation curve and the effective offset; determining a balance point force threshold at the mounting point based on the maximum stress curve; performing mounting point reliability evaluation according to the balance point force and the balance point force threshold.

[0009] In an embodiment, the step of determining a balance point force threshold at the mounting point based on the maximum stress curve comprises: obtaining a preset safety factor and a yield strength of an injection molded part where each mating surface is located; calculating a maximum stress value of each mating surface according to the preset safety factor and the yield strength; determining multiple maximum force values corresponding to the maximum stress curve at the maximum stress value according to the maximum stress value and the maximum stress curve; determining a balance point force threshold at the mounting point from the multiple maximum force values.

[0010] In an embodiment, the step of performing mounting point reliability evaluation according to the balance point force and the balance point force threshold comprises: determining that the mounting point reliability evaluation is a reliability evaluation failure when the balance point force is greater than the balance point force threshold; When the force at the balance point is less than or equal to the threshold value of the force at the balance point, it is determined that the reliability evaluation of the mounting point is a reliability evaluation pass.

[0011] In an embodiment, the step of determining the effective offset according to the original offsets comprises: When the original offset of each mating surface is greater than a preset value, determining a minimum original offset according to the original offsets of the mating surfaces; calculating the effective offset according to the original offset and the minimum original offset; When the original offset of each mating surface is less than a preset value, determining a maximum original offset according to the original offsets of the mating surfaces; calculating the effective offset according to the original offset and the maximum original offset.

[0012] In an embodiment, the step of obtaining the deformation curve and the maximum stress curve of the mating surface after the multiple forces are applied to the mating surface corresponding to the mounting point comprises: obtaining deformation data and maximum stress value data of the mating surface after the multiple forces are applied to the mating surface corresponding to the mounting point; fitting according to the multiple forces and the deformation data to obtain the deformation curve of the multiple mating surfaces; fitting according to the multiple forces and the maximum stress value data to obtain the maximum stress curve of the multiple mating surfaces.

[0013] In addition, to achieve the above object, the application further provides a vehicle injection molding part assembly and correction device, which comprises: An obtaining module is configured to obtain original offsets of multiple injection molding parts on mating surfaces corresponding to mounting points according to warping deformation analysis results of the multiple injection molding parts on the vehicle; A determining module is configured to determine an effective offset according to the original offsets; The obtaining module is further configured to obtain deformation curves and maximum stress curves of the mating surfaces after multiple forces are applied to the mating surfaces corresponding to the mounting points; An evaluation module is configured to perform a mounting point reliability evaluation based on the effective offset, the deformation curves, and the maximum stress curves; A distribution module is configured to perform mounting point offset distribution according to the deformation curves and the effective offset to obtain assembly and correction deformation amounts of the multiple injection molding parts when the mounting point reliability evaluation is a reliability evaluation pass.

[0014] In addition, to achieve the above object, the application further provides a vehicle injection molding part assembly and rectification device, which comprises a memory, a processor and a computer program stored in the memory and executable on the processor, and the computer program is configured to implement the steps of the vehicle injection molding part assembly and rectification method as described above.

[0015] In addition, to achieve the above object, the application further provides a storage medium, which is a computer readable storage medium, and the storage medium stores a computer program, and the computer program is executed by a processor to implement the steps of the vehicle injection molding part assembly and rectification method as described above.

[0016] In addition, to achieve the above object, the application further provides a computer program product, which comprises a computer program, and the computer program is executed by a processor to implement the steps of the vehicle injection molding part assembly and rectification method as described above.

[0017] According to the warping deformation analysis results of the plurality of injection molding parts on the vehicle, the original offset of the plurality of injection molding parts on the corresponding mating surface of the mounting point is obtained; the effective offset is determined according to the original offset; the deformation curve and the maximum stress curve of the mating surface after a plurality of forces are applied on the corresponding mating surface of the mounting point are obtained; the mounting point reliability evaluation is carried out based on the effective offset, the deformation curve and the maximum stress curve; when the mounting point reliability evaluation is reliable evaluation passing, the mounting point offset is distributed according to the deformation curve and the effective offset, and the assembly and rectification deformation amount of each injection molding part is obtained. Through the mechanical simulation technology, the warping deformation of the injection molding part is accurately analyzed, the mounting point offset is effectively determined, and the precise assembly and rectification of the injection molding part is realized. BRIEF DESCRIPTION OF DRAWINGS

[0018] The drawings incorporated into the specification and forming a part thereof, illustrate embodiments consistent with the application and, together with the specification, serve to explain the principles of the application.

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced as follows. Obviously, for those skilled in the art, other drawings can also be obtained without creative labor based on these drawings.

[0020] Figure 1 The flowchart provided for the first embodiment of the vehicle injection molding part assembly and rectification method of the application; Figure 2 The comparative schematic diagram of the injection molding part before and after deformation provided for the first embodiment of the vehicle injection molding part assembly and rectification method of the application; Figure 3This is a schematic diagram showing the deformation of the mating surfaces of multiple injection molded parts provided in an embodiment of the vehicle injection molded part assembly and straightening method of this application; Figure 4 This is a schematic diagram showing the translation of each mating surface in an embodiment of the vehicle injection molding part assembly and straightening method of this application; Figure 5 A schematic diagram of the deformation curve and maximum stress curve provided in an embodiment of the vehicle injection molded part assembly and straightening method of this application; Figure 6 This is a flowchart illustrating Embodiment 2 of the vehicle injection molding part assembly and straightening method of this application; Figure 7 This is a flowchart illustrating Embodiment 3 of the vehicle injection molding part assembly and straightening method of this application; Figure 8 A simplified flowchart illustrating an embodiment of the vehicle injection molded part assembly and straightening method of this application; Figure 9 This is a schematic diagram of the modular structure of the vehicle injection molded part assembly straightening device according to an embodiment of this application; Figure 10 This is a schematic diagram of the equipment structure of the hardware operating environment involved in the vehicle injection molding part assembly and straightening method in the embodiments of this application.

[0021] The purpose, features, and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0022] It should be understood that the specific embodiments described herein are merely illustrative of the technical solutions of this application and are not intended to limit this application.

[0023] To better understand the technical solution of this application, a detailed description will be provided below in conjunction with the accompanying drawings and specific implementation methods.

[0024] The main solution of this application embodiment is as follows: Based on the warpage deformation analysis results of multiple injection molded parts on the vehicle, the original offset of the mating surfaces corresponding to the mounting points of the multiple injection molded parts is obtained; the effective offset is determined based on the original offset; the deformation curve and maximum stress curve of the mating surfaces obtained after applying multiple forces to the mating surfaces corresponding to the mounting points are acquired; the reliability of the mounting points is evaluated based on the effective offset, the deformation curve, and the maximum stress curve; when the reliability evaluation of the mounting points is passed, the offset of the mounting points is allocated according to the deformation curve and the effective offset to obtain the assembly straightening deformation of each injection molded part.

[0025] Because existing technologies directly employ numerical model analysis, they do not consider the warpage deformation of the product. Therefore, they cannot accurately assess the deformation state of injection molded parts after assembly. Although some methods consider co-simulation based on warpage deformation, these methods only analyze single products or focus on processing data from different software programs. They are not applicable to assembly analysis of different injection molded parts based on their respective warpage deformation states, and thus have certain limitations.

[0026] This application provides a solution that utilizes the characteristic that multiple mating surfaces at the mounting point ultimately need to fit to the mounting equilibrium point during assembly. An assembly straightening model is constructed to quantitatively calculate the deformation of multiple mating surfaces. By acquiring the original offsets of multiple injection-molded parts at the mating surfaces corresponding to the mounting points and further determining the effective offsets, accurate basic data is provided for subsequent assembly straightening. Simultaneously, by applying multiple forces to the mating surfaces corresponding to the mounting points and obtaining deformation curves and maximum stress curves, the changes in the mechanical properties of the mating surfaces at the mounting points during assembly can be comprehensively reflected. Reliability evaluation of the mounting points based on this data ensures the accuracy and reliability of the assembly straightening. After the reliability evaluation is passed, the mounting point offsets are allocated according to the deformation curves and effective offsets. Thus, after obtaining the allocated mounting point offset values, the offset values ​​of the injection-molded parts are imported into mechanical simulation software for deformation analysis, enabling precise assembly straightening of each injection-molded part. This not only improves assembly efficiency but also reduces errors and risks during the assembly process, providing a new and effective approach for the assembly straightening of vehicle injection-molded parts.

[0027] It should be noted that the executing entity in this embodiment can be a computing service device with data processing, network communication, and program execution functions, such as a tablet computer, personal computer, or mobile phone, or an electronic device capable of performing the above functions, such as a vehicle injection molded part assembly and straightening device. The following description uses a vehicle injection molded part assembly and straightening device as an example to illustrate this embodiment and the subsequent embodiments.

[0028] Based on this, the embodiments of this application provide a method for assembling and straightening vehicle injection molded parts, referring to... Figure 1 , Figure 1 This is a flowchart illustrating the first embodiment of the vehicle injection molding part assembly and straightening method of this application.

[0029] In this embodiment, the vehicle injection molded part assembly and straightening method includes steps S10 to S50: Step S10: Based on the warpage deformation analysis results of multiple injection molded parts on the vehicle, obtain the original offset of the mating surfaces of the multiple injection molded parts at the mounting points.

[0030] It should be noted that, due to the installation of many types of intelligent driver assistance hardware at the front and rear of automobiles, such as cameras, millimeter-wave radar, and ultrasonic radar, the precision requirements of the injection molded parts at the front and rear are becoming increasingly higher, such as the deflection angle, position, and deformation of the product. Therefore, it is necessary to simulate the injection molded parts so that the deformation trend and deformation amount at key locations can be determined at the digital stage. Mold flow analysis software can predict the warping deformation caused by material shrinkage or uneven cooling during the injection molding process. By combining it with mechanical analysis software, the impact of warping deformation on the mechanical properties of the entire structure can be analyzed, which is more in line with actual working conditions.

[0031] Therefore, the warpage deformation analysis results of multiple injection molded parts on the vehicle can be obtained by using mold flow analysis software. Based on the warpage deformation analysis results, the original offset of each injection molded part at the corresponding mating surface at the mounting point can be determined. These original offsets reflect the initial deformation state of the injection molded parts before assembly and straightening, providing basic data for subsequent straightening processing.

[0032] like Figure 2 As shown, Figure 2 This is a comparative diagram of the injection molded part before and after deformation. In the digital model state, if the injection molded part does not deform, it can fit against the mounting surface corresponding to the mounting point. However, after the injection molded part warps and deforms, the mating surface has been deformed and deviated from its original position. The mating surface can no longer reflect the original assembly relationship, and the assembly cannot be further simulated mechanically. Therefore, it is necessary to simulate the effect of manual installation and straightening to assemble the deformed parts. At this time, it is necessary to analyze the original offset of each injection molded part on the mating surface corresponding to the mounting point.

[0033] like Figure 3 As shown, Figure 3 This is a schematic diagram showing the deformation of the mating surfaces of multiple injection molded parts. The installation equilibrium point is point o, and the mating surfaces include a and b. During assembly, mating surface a shifts from position a to position o, resulting in a shift of L. ao The corresponding installation point is subjected to force Fa, and the mating surface b shifts from position a to position o, causing b to shift by L. bo The corresponding installation point is subjected to a force Fb. In a steady state, the action force and reaction force are the same, therefore Fa = Fb, and L ao +L bo =L0, where L0 is the original offset.

[0034] Step S20: Determine the effective offset based on the original offset.

[0035] If all mating surfaces of the injection-molded part deform in the same direction, meaning the product undergoes translation, this translation does not require stress deformation. This deformation needs to be excluded during assembly straightening. Therefore, it is necessary to determine the effective offset based on the original offset. The method for determining the effective offset can be selected according to the actual situation. For example, it can be obtained by taking the minimum or maximum value of the original offset of each mating surface and combining it with the appropriate calculation method, to ensure that the effective offset can accurately reflect the actual deformation of the injection-molded part during assembly.

[0036] In one feasible implementation, step S20 may include steps A11 to A14: Step A11: When the original offset of each mating surface is greater than the preset value, determine the minimum original offset based on the original offset of each mating surface; The relationship between the original offset of each mating surface and the preset value can be determined. The preset value is set to 0. If the original offset of each mating surface is greater than 0 or the original offset of each mating surface is less than 0, it means that the direction of the original offset of each mating surface is the same.

[0037] For example, there are i contact surfaces, and the original offset L0 = (ai, bi, ci). For each data ai, if ai is greater than 0, the minimum original offset min{ai} in ai can be obtained. Similarly, for each data bi, if bi is greater than 0, the minimum original offset min{bi} in bi can be obtained. For each data ci, if ci is greater than 0, the minimum original offset min{ci} in ci can be obtained.

[0038] Step A12: Calculate the effective offset using the original offset and the minimum original offset; In specific implementation, the effective offset Ai = ai - min{ai}, Bi = bi - min{bi}, Ci = ci - min{ci}, and the effective offset L = {Ai, Bi, Ci}.

[0039] Step A13: When the original offset of each mating surface is less than the preset value, determine the maximum original offset based on the original offset of each mating surface; If the original offset of each mating surface is less than the preset value, the maximum original offsets max{ai}, max{bi}, and max{ci} can be obtained.

[0040] Step A14: Calculate the effective offset using the original offset and the maximum original offset.

[0041] In practical implementation, the effective offset can be calculated based on the original offset and the maximum original offset. The effective offset Ai = ai - max{ai}, Bi = bi - max{bi}, Ci = ci - max{ci}, and the effective offset L = {Ai, Bi, Ci}.

[0042] If the original offset contains values ​​greater than 0, less than 0, or equal to 0, it indicates that the orientations of the mating surfaces are different. Therefore, the original offset is directly used as the effective offset.

[0043] like Figure 4 As shown, Figure 4 This is a schematic diagram of the translation amount of each mating surface. If the directions of each mating surface are the same, then there is a translation amount; if the directions of each mating surface are not the same, then there is no translation amount.

[0044] As shown in Table 1, Table 1 is a data table of the original offset and effective offset of different contact surfaces. The deformation is translated in a specific direction to eliminate the translation part of the deformation. Through the above translation calculation, the original offset L0(ai,bi,ci) can be converted into the effective offset L(Ai,Bi,Ci).

[0045] Table 1

[0046] Step S30: Obtain the deformation curve and maximum stress curve of the mating surface after applying multiple forces to the mating surface corresponding to the installation point.

[0047] It should be noted that after installation, 'a' will be offset by 'L'. ao b is offset by L bo Calculating these two offset values ​​is crucial for achieving corrective assembly of parts, but L ao and L bo The size depends on the structure, shape, thickness, and materials used in the parts at the location of the installation point, and cannot be directly quantified.

[0048] Therefore, this method utilizes mechanical simulation software to apply a series of forces to the mating surfaces of the mounting points, thereby simulating the stress and deformation of the mating surfaces during actual assembly. The direction of the applied forces is the positioning direction of the mounting points, and the deformation curves and maximum stress curves of the mating surfaces under these forces are obtained through fitting. The deformation curves reflect the deformation of the mating surfaces under different forces, while the maximum stress curve reflects the maximum stress value borne by the mating surfaces during the stress process. These data are of great significance for subsequent reliability evaluation of the mounting points and assembly straightening treatment.

[0049] In one feasible implementation, step S30 may include steps B11 to B13: Step B11: Obtain deformation data and maximum stress value data after applying multiple forces to the mating surface corresponding to the mounting point; It should be noted that a series of forces f1, f2, f3...fn can be applied to the mating surfaces at the installation point using mechanical simulation software, thereby obtaining a series of deformations and a series of maximum stress values ​​under the corresponding applied forces, and summarizing the deformation data and maximum stress value data.

[0050] Step B12: Fit the data of multiple forces and the deformation to obtain the deformation curve of the mating surface; In practical implementation, the deformation curve of the mating installation point can be obtained by fitting the applied forces f1, f2, f3...fn and the corresponding deformation.

[0051] Step B13: Fit the data of multiple forces and the maximum stress value to obtain the maximum stress curves of multiple mating surfaces.

[0052] In practical implementation, the maximum stress curve of the mating installation point can be obtained by fitting the applied forces f1, f2, f3...fn and the corresponding maximum stress values.

[0053] For example, if the mating surfaces include a and b, by applying forces f1, f2, f3…fn to the mounting points of the mating surfaces a and b, the deformation and maximum stress of mating surface a under different forces can be obtained, as can the deformation and maximum stress of mating surface b under different forces. These are then fitted to obtain the deformation curves of mating surface a, mating surface b, the maximum stress curve of mating surface a, and the maximum stress curve of mating surface b. Figure 5 As shown, Figure 5 The diagrams illustrate the deformation curves and maximum stress curves. The deformation curve of mating surface a under different forces is represented as La = m1 * F, where m1 is the slope and F is the force. Similarly, the deformation curve of mating surface b under different forces is represented as Lb = m2 * F, where m2 is the slope and F is the force. The maximum stress curve of mating surface a under different forces is represented as σa = n1 * F, where n1 is the slope and F is the force. The maximum stress curve of mating surface b under different forces is represented as σb = n2 * F, where n2 is the slope and F is the force.

[0054] By applying different forces to the mating surfaces of different installation points using mechanical simulation software, the corresponding deformation curves and maximum stress curves are obtained, thus solving the problem of the inability to calculate the deformation and maximum stress of the installation points.

[0055] Step S40: Evaluate the reliability of the installation point based on the effective offset, the deformation curve, and the maximum stress curve.

[0056] It is important to note that after obtaining the effective offset, deformation curve, and maximum stress curve, a reliability evaluation of the mounting point needs to be conducted by integrating these data. This evaluation process is crucial, as it directly relates to the accuracy of assembly straightening and the safety of subsequent vehicle use. The effective offset can be substituted into the deformation curve or maximum stress curve to calculate the specific force. Based on this force, the reliability of the mounting point under stress can be further analyzed. Specifically, substituting the effective offset into the deformation curve yields the force at the stress equilibrium point of the mounting point. It is then determined whether this force is within the allowable range, thereby assessing whether the mounting structure has a risk of yielding. If a risk of yielding exists, it indicates that the mounting structure cannot withstand the force caused by warping, and adjustments are necessary.

[0057] Step S50: When the reliability evaluation of the mounting point is passed, the mounting point offset is allocated according to the deformation curve and the effective offset to obtain the assembly correction deformation of each injection molded part.

[0058] If the reliability evaluation of the installation point passes, it indicates that the installation structure is sufficient to resist the forces caused by warping deformation. At this point, the effective offset of the installation point can be allocated. Therefore, the offset of each mating surface can be reasonably planned based on the effective offset and the deformation curve. In specific operation, based on the deformation law of the mating surface under different forces as presented by the deformation curve, combined with the effective offset, the offset value to be allocated to each installation point is accurately calculated.

[0059] In practice, after determining the offset allocation of the mating surfaces corresponding to each mounting point, forced displacement constraints can be applied to the mating surfaces corresponding to the mounting points using mechanical simulation software. The magnitude of the forced displacement constraint is the offset allocated to the mounting point, and the direction of the forced displacement constraint is the positioning direction of the mounting point. Forced displacement constraints are applied simultaneously to the mating surfaces corresponding to all mounting points on the same product, and deformation analysis is performed. After the analysis is complete, the deformed data is exported, thus obtaining the data after the mounting points are assembled and corrected. The data after the assembly and correction analysis is exported, and the parts are assembled. This achieves the assembly of the deformation data after the warping deformation of the parts, solving the most difficult problem for the next step of assembly simulation analysis.

[0060] This embodiment provides a method for correcting the assembly of vehicle injection molded parts. Based on the warpage deformation analysis of multiple injection molded parts on the vehicle, the original offset of each injection molded part at the corresponding mating surface at the mounting point is obtained. The effective offset is determined based on the original offset. The deformation curve and maximum stress curve of the mating surface are obtained after applying multiple forces to the mating surface at the mounting point. The reliability of the mounting point is evaluated based on the effective offset, deformation curve, and maximum stress curve. When the reliability evaluation of the mounting point is passed, the offset of the mounting point is allocated according to the deformation curve and effective offset to obtain the assembly correction deformation of each injection molded part. Through mechanical simulation technology, the warpage deformation of the injection molded parts is accurately analyzed, and the offset of the mounting point is effectively determined. During the assembly process, reliability assessment is performed based on the original offset, deformation curve, and maximum stress curve, which helps to identify potential problem points and thus optimize the assembly structure. Through offset allocation and correction operations, the assembly of the deformation data after the warpage deformation of the parts is realized, laying the foundation for the next step of assembly simulation analysis. Precise assembly can still be achieved when facing the warpage deformation of multiple injection molded parts.

[0061] Based on the first embodiment of this application, in the second embodiment of this application, the content that is the same as or similar to that in the first embodiment described above can be referred to the above description, and will not be repeated hereafter. Based on this, please refer to... Figure 6 Step S50 includes steps S501 to S503: Step S501: When the reliability evaluation of the installation point is passed, determine the equilibrium point force at the installation point based on the deformation curve and the effective offset.

[0062] It should be noted that if the reliability evaluation of the installation point is passed, the equilibrium point force at the installation point can be determined based on the effective offset and the specific deformation curve. For example, the effective offset can be substituted into the deformation curve to obtain the corresponding equilibrium point force.

[0063] In one feasible implementation, the step of determining the equilibrium point force at the mounting point based on the deformation curve and the effective offset may include: obtaining the offset relationship between the mating surfaces corresponding to the mounting point of the injection molded part; and calculating the equilibrium point force at the mounting point based on the offset relationship, the effective offset, and the deformation curve of the mating surfaces corresponding to the mounting point.

[0064] It should be noted that the offset relationship between the mating surfaces of multiple injection molded parts at the mounting point can be expressed as L=L ao +L bo +L co Specifically, the calculation can be based on the number of mating surfaces. For example, if the mating surfaces are a and b, then the relationship between the effective offset and the offset between the mating surfaces corresponding to multiple injection molded parts is L=L ao+L bo .

[0065] Since the deformation curve of mating surface a is La=m1*F and the deformation curve of mating surface b is Lb=m2*F, and since the action and reaction forces are the same, we can obtain... Thus, the equilibrium force F0 at the installation point can be calculated.

[0066] Step S502: Under the force of the equilibrium point, calculate the offset of each mating surface at the installation point according to the deformation curve.

[0067] In practical implementation, after obtaining the equilibrium point force, the offset of the corresponding mating surface can be calculated based on the deformation curves of different mating surfaces, such as a and b. Then L a0 = L a0 = Thus, the offset of the mating surface can be obtained.

[0068] Step S503: Determine the offset direction based on the offset magnitude of each mating surface, and allocate the installation point offset based on the offset of each mounting point mating surface and the offset direction.

[0069] In practice, the direction of offset can be determined based on the magnitude of the offset of each mounting point's mating surface. The offset direction is typically closely related to the direction of force applied to the injection molded part during assembly, the tendency of warping deformation, and the positioning direction of the mounting point. For example, if the offset value of a mounting point's mating surface is positive, and this surface primarily bears tensile force during assembly, then the offset direction can be determined to be away from the positioning center; conversely, if the offset value is negative, the offset direction is towards the positioning center. Accurately determining the offset direction of each mounting point's mating surface provides more precise guidance for subsequent assembly and straightening operations, ensuring that each mating surface can be precisely adjusted according to the predetermined offset, thereby achieving precise assembly of the injection molded part.

[0070] In practice, the offset of the installation points is reasonably allocated based on the offset calculated from the mating surfaces of each installation point and the determined offset direction.

[0071] In this embodiment, when the reliability evaluation of the mounting point is passed, the equilibrium point force at the mounting point is determined based on the deformation curve and the effective offset. Under the equilibrium point force, the offset of the corresponding mating surface at the mounting point is calculated based on the deformation curve. The offset direction is determined based on the magnitude of the offset of each mating surface. The mounting point offset is allocated based on the offset of each mating surface and the offset direction. This fully utilizes key data such as the deformation curve and the effective offset, ensuring that the offset allocation of each mounting point is based on accurate analysis and calculation. In actual assembly and straightening processes, this data-driven offset allocation method not only improves assembly accuracy and efficiency but also significantly reduces the defect rate caused by mating errors.

[0072] Based on the first and second embodiments of this application, in the third embodiment of this application, the content that is the same as or similar to that in Embodiments 1 and 2 described above can be referred to the above description and will not be repeated hereafter. Based on this, please refer to... Figure 7 Step S40 includes steps S401 to S403: Step S401: Determine the equilibrium point force at the mounting point based on the deformation curve and the effective offset.

[0073] It is understandable that the equilibrium force F0 at the installation point can be calculated through the steps in Embodiment 2 above.

[0074] Step S402: Determine the equilibrium point force threshold at the installation point based on the maximum stress curve.

[0075] In practice, after the installation structure is completed, due to warping deformation of the product, there is an interaction force between the mating surfaces of the installation points to overcome the warping deformation. To ensure the reliability of the installation structure, the weakest area of ​​the installation point cannot be in a yielding state under this force. Therefore, the equilibrium point force threshold of the installation point can be determined based on the properties of the plastic parts where the mating surfaces are located and the maximum stress curve.

[0076] In one feasible implementation, step S402 may include steps C11 to C14: Step C11: Obtain the preset safety factor and the yield strength of the injection molded part where each mating surface is located; The preset safety factor value is set between 0 and 1, and the specific value can be flexibly adjusted according to actual engineering needs, material properties and design requirements.

[0077] The yield strength of each mating surface of the injection molded part can be obtained through material performance testing, consulting material handbooks, etc. For example, the yield strength of the injection molded part with mating surface a is σ1, and the yield strength of the injection molded part with mating surface b is σb.

[0078] Step C12: Calculate the maximum stress value of each mating surface based on the preset safety factor and the yield strength; In specific implementation, the maximum stress value of each mating surface is the maximum allowable stress value of each mating surface. For example, the maximum allowable stress value of mating surface a is σa=σ1*K1, and the maximum allowable stress value of mating surface b is σb=σ2*K2, where K1 and K2 are preset safety factors.

[0079] Step C13: Determine multiple maximum force values ​​corresponding to the maximum stress curve under the maximum stress value based on the maximum stress value and the maximum stress curve; Understandably, given the maximum stress curve of the mating installation point, the maximum force value that the mating surface can withstand under the maximum allowable stress can be calculated.

[0080]

[0081]

[0082] The above formula can be converted to obtain... , Thus, the maximum force value of each mating surface can be calculated.

[0083] Step C14: Determine the equilibrium point force threshold at the mounting point from among the plurality of said maximum force values.

[0084] In practical implementation, since the action and reaction forces are the same after assembly at the installation point, the maximum allowable force Fmax at this installation point is the minimum of F1 and F2, i.e., the equilibrium point force threshold Fmax = .

[0085] Step S403: Evaluate the reliability of the installation point based on the equilibrium point force and the equilibrium point force threshold.

[0086] After obtaining the equilibrium point force threshold, the reliability of the installation point can be evaluated based on the relationship between the equilibrium point force and the equilibrium point force threshold. Step S403 may include: when the equilibrium point force is greater than the equilibrium point force threshold, determining that the reliability evaluation of the installation point is unsuccessful; when the equilibrium point force is less than or equal to the equilibrium point force threshold, determining that the reliability evaluation of the installation point is successful.

[0087] If the equilibrium point force F0 is greater than the equilibrium point force threshold Fmax, it means that F0 exceeds the maximum allowable force, the installation structure is at risk of yielding, and the installation structure cannot resist the force caused by warping. In other words, the reliability evaluation of the installation point fails, and the installation structure needs to be strengthened, or the injection molding process / gate needs to be adjusted to optimize the amount of warping deformation at the installation point. If the equilibrium point force F0 is less than or equal to the equilibrium point force threshold Fmax, it means that the installation reliability evaluation passes, and the installation structure is sufficient to resist the force caused by warping deformation.

[0088] This embodiment determines the equilibrium point force at the mounting point based on the deformation curve and the effective offset; it determines the equilibrium point force threshold at the mounting point based on the maximum stress curve; and it evaluates the reliability of the mounting point based on the equilibrium point force and the equilibrium point force threshold. By introducing the equilibrium point force threshold as a key parameter, the reliability evaluation of the mounting point becomes more scientific and rigorous. It can accurately identify potential risk points in the mounting structure, providing a strong basis for subsequent assembly and straightening operations.

[0089] For example, to help understand the implementation process of the vehicle injection molded part assembly and straightening method obtained in this embodiment combined with the above embodiment one, please refer to... Figure 8 , Figure 8 A simplified flowchart of a method for assembling and straightening vehicle injection molded parts is provided. Specifically: the warpage deformation analysis results of the injection molded parts are obtained to calculate the original offset; the effective offset is calculated based on the original offset; different forces are applied to obtain the deformation curve and maximum stress curve of the mounting point; the balancing force of the deformation equilibrium point is calculated based on the curve and the effective offset; the reliability of the mounting point is evaluated using the balancing force; if the reliability evaluation of the mounting point passes, the offset is allocated, and the offset and offset direction of each mounting point are obtained; deformation analysis is performed based on the allocated offset; assembly and straightening are performed based on the deformation analysis results; and assembly is then performed. If the reliability evaluation of the mounting point fails, the product is adjusted.

[0090] It should be noted that the above examples are only for understanding this application and do not constitute a limitation on the assembly and straightening method of vehicle injection molded parts in this application. Any simple modifications based on this technical concept are within the protection scope of this application.

[0091] This application also provides a vehicle injection molded part assembly straightening device, please refer to... Figure 9 The vehicle injection molded part assembly straightening device includes: The acquisition module 10 is used to obtain the original offset of the mating surfaces of multiple injection molded parts at the mounting point based on the warping deformation analysis results of multiple injection molded parts on the vehicle.

[0092] The determination module 20 is used to determine the effective offset based on the original offset.

[0093] The acquisition module 10 is also used to acquire the deformation curve and maximum stress curve of the mating surface after applying multiple forces to the mating surface corresponding to the installation point.

[0094] Evaluation module 30 is used to evaluate the reliability of the installation point based on the effective offset, the deformation curve, and the maximum stress curve.

[0095] The allocation module 40 is used to allocate the installation point offset according to the deformation curve and the effective offset when the reliability evaluation of the installation point is passed, so as to obtain the assembly correction deformation of each injection molded part.

[0096] The vehicle injection molded part assembly correction device provided in this application, employing the vehicle injection molded part assembly correction method in the above embodiments, can solve the technical problem that current injection molded part assembly correction simulations cannot be applied to complex scenarios involving the collaborative assembly of multiple injection molded parts. Compared with the prior art, the beneficial effects of the vehicle injection molded part assembly correction device provided in this application are the same as those of the vehicle injection molded part assembly correction method provided in the above embodiments, and other technical features in the vehicle injection molded part assembly correction device are the same as those disclosed in the methods of the above embodiments, and will not be repeated here.

[0097] In one embodiment, the allocation module 40 is further configured to determine the equilibrium point force at the installation point based on the deformation curve and the effective offset when the reliability evaluation of the installation point is passed. Under the force at the equilibrium point, the offset of each mating surface at the installation point is calculated according to the deformation curve. The offset direction is determined based on the offset magnitude of each mating surface, and the installation point offset is allocated based on the offset of each mating surface and the offset direction.

[0098] In one embodiment, the allocation module 40 is further configured to obtain the offset relationship between the mating surfaces of multiple injection molded parts at the mounting point; The equilibrium point force at the mounting point is calculated based on the offset relationship, the effective offset, and the deformation curves of the mating surfaces corresponding to multiple injection molded parts.

[0099] In one embodiment, the evaluation module 30 is further configured to determine the equilibrium point force at the mounting point based on the deformation curve and the effective offset; The equilibrium point force threshold at the installation point is determined based on the maximum stress curve. The reliability of the installation point is evaluated based on the equilibrium point force and the equilibrium point force threshold.

[0100] In one embodiment, the evaluation module 30 is further used to obtain a preset safety factor and the yield strength of the injection molded part where each mating surface is located; Calculate the maximum stress value of each mating surface based on the preset safety factor and the yield strength; Based on the maximum stress value and the maximum stress curve, determine a plurality of maximum force values ​​corresponding to the maximum stress curve at the maximum stress value; The equilibrium point force threshold at the installation point is determined from among the plurality of said maximum force values.

[0101] In one embodiment, the evaluation module 30 is further configured to determine that the reliability evaluation of the installation point is unsuccessful when the force at the equilibrium point is greater than the threshold force at the equilibrium point. When the force at the equilibrium point is less than or equal to the threshold force at the equilibrium point, the reliability evaluation of the installation point is determined to be passed.

[0102] In one embodiment, the determining module 20 is further configured to determine a minimum original offset based on the original offset of each mating surface when the original offset of each mating surface is greater than a preset value. The effective offset is calculated using the original offset and the minimum original offset; When the original offset of each mating surface is less than the preset value, the maximum original offset is determined based on the original offset of each mating surface. The effective offset is calculated using the original offset and the maximum original offset.

[0103] In one embodiment, the acquisition module 10 is further configured to acquire deformation data and maximum stress value data obtained after applying multiple forces to the mating surface corresponding to the mounting point; By fitting multiple force and deformation data, deformation curves of multiple mating surfaces are obtained; By fitting multiple force and maximum stress value data, maximum stress curves of multiple mating surfaces are obtained.

[0104] This application provides a vehicle injection molded part assembly and straightening device, which includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, which are executed by the at least one processor to enable the at least one processor to perform the vehicle injection molded part assembly and straightening method in the above embodiment 1.

[0105] The following is for reference. Figure 10This document illustrates a structural schematic diagram of a vehicle injection molded part assembly and straightening device suitable for implementing embodiments of this application. The vehicle injection molded part assembly and straightening device in this application may include, but is not limited to, mobile terminals such as mobile phones, laptops, digital radio receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Description), PMPs (Portable Media Players), in-vehicle terminals (e.g., in-vehicle navigation terminals), and fixed terminals such as digital TVs and desktop computers. Figure 10 The vehicle injection molded part assembly and straightening device shown is merely an example and should not impose any limitation on the function and scope of use of the embodiments of this application.

[0106] like Figure 10 As shown, the vehicle injection molded part assembly and straightening equipment may include a processing unit 1001 (e.g., a central processing unit, a graphics processor, etc.), which can perform various appropriate actions and processes according to a program stored in ROM (Read Only Memory) 1002 or a program loaded from storage device 1003 into RAM (Random Access Memory) 1004. RAM 1004 also stores various programs and data required for the operation of the vehicle injection molded part assembly and straightening equipment. The processing unit 1001, ROM 1002, and RAM 1004 are interconnected via bus 1005. Input / output (I / O) interface 1006 is also connected to the bus. Typically, the following systems can be connected to I / O interface 1006: input devices 1007 including, for example, touchscreens, touchpads, keyboards, mice, image sensors, microphones, accelerometers, gyroscopes, etc.; output devices 1008 including, for example, LCDs (Liquid Crystal Displays), speakers, vibrators, etc.; storage devices 1003 including, for example, magnetic tapes, hard disks, etc.; and communication devices 1009. Communication device 1009 allows the vehicle injection molding assembly orthopedic equipment to exchange data wirelessly or via wired communication with other devices. Although the figure shows a vehicle injection molding assembly orthopedic equipment with various systems, it should be understood that it is not required to implement or possess all the systems shown. More or fewer systems may be implemented alternatively.

[0107] Specifically, according to the embodiments disclosed in this application, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments disclosed in this application include a computer program product comprising a computer program carried on a computer-readable medium, the computer program containing program code for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via a communication device, or installed from storage device 1003, or installed from ROM 1002. When the computer program is executed by processing device 1001, it performs the functions defined in the methods of the embodiments disclosed in this application.

[0108] The vehicle injection molded part assembly and straightening equipment provided in this application, employing the vehicle injection molded part assembly and straightening method described in the above embodiments, can solve the technical problem that current injection molded part assembly and straightening simulations cannot be applied to complex scenarios involving the collaborative assembly of multiple injection molded parts. Compared with the prior art, the beneficial effects of the vehicle injection molded part assembly and straightening equipment provided in this application are the same as those of the vehicle injection molded part assembly and straightening method provided in the above embodiments, and other technical features of this vehicle injection molded part assembly and straightening equipment are the same as those disclosed in the previous embodiment method, and will not be repeated here.

[0109] It should be understood that the various parts disclosed in this application can be implemented using hardware, software, firmware, or a combination thereof. In the description of the above embodiments, specific features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0110] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

[0111] This application provides a computer-readable storage medium having computer-readable program instructions (i.e., a computer program) stored thereon, the computer-readable program instructions being used to execute the vehicle injection molded part assembly and straightening method in the above embodiments.

[0112] The computer-readable storage medium provided in this application may be, for example, a USB flash drive, but is not limited to, electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices, or any combination thereof. More specific examples of computer-readable storage media may include, but are not limited to: electrical connections having one or more wires, portable computer disks, hard disks, RAM (Random Access Memory), ROM (Read Only Memory), EPROM (Erasable Programmable Read Only Memory or Flash Memory), optical fibers, CD-ROM (CD-Read Only Memory), optical storage devices, magnetic storage devices, or any suitable combination thereof. In this embodiment, the computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, system, or device. The program code contained on the computer-readable storage medium may be transmitted using any suitable medium, including but not limited to: wires, optical cables, RF (Radio Frequency), etc., or any suitable combination thereof.

[0113] The aforementioned computer-readable storage medium may be included in the vehicle injection molding assembly and straightening equipment; or it may exist independently and not be assembled into the vehicle injection molding assembly and straightening equipment.

[0114] The aforementioned computer-readable storage medium carries one or more programs. When these programs are executed by a vehicle injection molding assembly straightening device, the vehicle injection molding assembly straightening device: obtains the original offset of multiple injection molding parts at the mating surfaces corresponding to the mounting points based on the warpage deformation analysis results of multiple injection molding parts on the vehicle; determines the effective offset based on the original offset; acquires the deformation curve and maximum stress curve of the mating surfaces obtained after applying multiple forces to the mating surfaces corresponding to the mounting points; performs a mounting point reliability evaluation based on the effective offset, the deformation curve, and the maximum stress curve; and when the mounting point reliability evaluation is passed, allocates the mounting point offset based on the deformation curve and the effective offset to obtain the assembly straightening deformation of each injection molding part.

[0115] Computer program code for performing the operations of this application can be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, and C++, as well as conventional procedural programming languages ​​such as the "C" language or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network—including LAN (Local Area Network) or WAN (Wide Area Network)—or can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0116] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this application. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0117] The modules described in the embodiments of this application can be implemented in software or hardware. The names of the modules do not necessarily limit the functionality of the unit itself.

[0118] The readable storage medium provided in this application is a computer-readable storage medium that stores computer-readable program instructions (i.e., a computer program) for executing the above-described vehicle injection molded part assembly and correction method. This solves the technical problem that current injection molded part assembly and correction simulations cannot be applied to complex scenarios involving the collaborative assembly of multiple injection molded parts. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided in this application are the same as those of the vehicle injection molded part assembly and correction method provided in the above embodiments, and will not be repeated here.

[0119] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the steps of the above-described vehicle injection molded part assembly and straightening method.

[0120] The computer program product provided in this application can solve the technical problem that current injection molding part assembly correction simulation cannot be applied to complex scenarios involving the collaborative assembly of multiple injection molding parts. Compared with the prior art, the beneficial effects of the computer program product provided in this application are the same as those of the vehicle injection molding part assembly correction method provided in the above embodiments, and will not be repeated here.

[0121] The above description is only a part of the embodiments of this application and does not limit the patent scope of this application. All equivalent structural transformations made under the technical concept of this application and using the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included in the patent protection scope of this application.

Claims

1. A method for assembling and straightening vehicle injection molded parts, characterized in that, The method for assembling and straightening vehicle injection molded parts includes: Based on the warping deformation analysis results of multiple injection molded parts on the vehicle, the original offset of multiple injection molded parts at the corresponding mating surfaces at the mounting points is obtained; The effective offset is determined based on the original offset. Obtain the deformation curve and maximum stress curve of the mating surface after applying multiple forces to the mating surface corresponding to the mounting point; The reliability of the mounting point is evaluated based on the effective offset, the deformation curve, and the maximum stress curve. When the reliability evaluation of the mounting point is passed, the mounting point offset is allocated according to the deformation curve and the effective offset to obtain the assembly correction deformation of each injection molded part.

2. The method as described in claim 1, characterized in that, When the reliability evaluation of the mounting point is passed, the step of allocating the mounting point offset based on the deformation curve and the effective offset includes: When the reliability evaluation at the mounting point is passed, the equilibrium point force at the mounting point is determined based on the deformation curve and the effective offset. Under the force at the equilibrium point, the offset of each mating surface at the installation point is calculated according to the deformation curve. The offset direction is determined based on the offset magnitude of each mating surface, and the installation point offset is allocated based on the offset of each mating surface and the offset direction.

3. The method as described in claim 2, characterized in that, The step of determining the equilibrium point force at the mounting point based on the deformation curve and the effective offset includes: Obtain the offset relationship between the mating surfaces of multiple injection molded parts at the installation point; The equilibrium point force at the mounting point is calculated based on the offset relationship, the effective offset, and the deformation curves of the mating surfaces corresponding to multiple injection molded parts.

4. The method as described in claim 1, characterized in that, The steps for evaluating the reliability of the mounting point based on the effective offset, the deformation curve, and the maximum stress curve include: The equilibrium point force at the mounting point is determined based on the deformation curve and the effective offset. The equilibrium point force threshold at the installation point is determined based on the maximum stress curve. The reliability of the installation point is evaluated based on the equilibrium point force and the equilibrium point force threshold.

5. The method as described in claim 4, characterized in that, The step of determining the equilibrium point force threshold at the installation point based on the maximum stress curve includes: Obtain the preset safety factor and the yield strength of the injection molded part where each mating surface is located; Calculate the maximum stress value of each mating surface based on the preset safety factor and the yield strength; Based on the maximum stress value and the maximum stress curve, determine a plurality of maximum force values ​​corresponding to the maximum stress curve at the maximum stress value; The equilibrium point force threshold at the installation point is determined from among the plurality of said maximum force values.

6. The method as described in claim 4, characterized in that, The step of evaluating the reliability of the installation point based on the equilibrium point force and the equilibrium point force threshold includes: When the force at the equilibrium point is greater than the threshold force at the equilibrium point, the reliability evaluation of the installation point is determined to be unsuccessful. When the force at the equilibrium point is less than or equal to the threshold force at the equilibrium point, the reliability evaluation of the installation point is determined to be passed.

7. The method as described in claim 1, characterized in that, The step of determining the effective offset based on the original offset includes: When the original offset of each mating surface is greater than the preset value, the minimum original offset is determined based on the original offset of each mating surface. The effective offset is calculated using the original offset and the minimum original offset; When the original offset of each mating surface is less than the preset value, the maximum original offset is determined based on the original offset of each mating surface. The effective offset is calculated using the original offset and the maximum original offset.

8. The method according to any one of claims 1 to 7, characterized in that, The steps of obtaining the deformation curve and maximum stress curve of the mating surface after applying multiple forces to the mating surface corresponding to the mounting point include: Obtain deformation data and maximum stress value data after applying multiple forces to the mating surface corresponding to the mounting point; By fitting multiple force and deformation data, deformation curves of multiple mating surfaces are obtained; By fitting multiple force and maximum stress value data, maximum stress curves of multiple mating surfaces are obtained.

9. A vehicle injection molded part assembly straightening device, characterized in that, The device includes: The acquisition module is used to obtain the original offset of multiple injection molded parts at the corresponding mating surfaces of the mounting points based on the warping deformation analysis results of multiple injection molded parts on the vehicle. The determination module is used to determine the effective offset based on the original offset; The acquisition module is also used to acquire the deformation curve and maximum stress curve of the mating surface after applying multiple forces to the mating surface corresponding to the installation point; The evaluation module is used to evaluate the reliability of the installation point based on the effective offset, the deformation curve, and the maximum stress curve. The allocation module is used to allocate the installation point offset according to the deformation curve and the effective offset when the reliability evaluation of the installation point is passed, so as to obtain the assembly correction deformation of each injection molded part.

10. A storage medium, characterized in that, The storage medium is a computer-readable storage medium, and a computer program is stored on the storage medium. When the computer program is executed by a processor, it implements the steps of the vehicle injection molded part assembly and straightening method as described in any one of claims 1 to 8.

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