Method, device and readable storage medium for realizing common-mode top covers with different configurations

Abstract

The present invention discloses a method, device and readable storage medium for realizing top covers of different configurations of a common mode. The method comprises: obtaining a simulation file of the entire process of a first common mode top cover through a simulation program, obtaining a first simulated springback result and a second simulated springback result based on the simulation file; judging whether the trends of the first simulated springback result and the second simulated springback result are consistent; if they are consistent, after obtaining the springback of a first MCC constraint point according to the second simulated springback result, performing springback compensation on the first common mode top cover to obtain a second common mode top cover, and uploading the second common mode top cover to the simulation software for analysis and verification, simulating and judging whether the first verification result of the second common mode top cover meets the requirements, and if the first verification result meets the requirements, outputting the springback compensation data of the second common mode top cover. The method ensures the smooth implementation of the common mode top cover process and achieves the effect of reducing the mold development cost.

Description

Technical Field

[0001] The present invention relates to the field of stamping technology, and in particular to a method, a device and a computer-readable storage medium for implementing top covers of different configurations of a common mold. Background Art

[0002] At present, most car models are equipped with three types of roof covers, namely, no sunroof, small sunroof and panoramic sunroof. However, due to the differences between no sunroof, small sunroof and panoramic sunroof, the springback of parts is also relatively different, which in turn affects the assembly accuracy of the whole vehicle. At present, there are two methods in the prior art to control the springback of the roof and improve the assembly accuracy of the whole vehicle, namely, after simulating the springback results of the three types of roofs in the whole process, reverse compensation is performed according to the springback amount of one of the roofs, and then single process compensation is performed on the unqualified area. The other is to only simulate the springback result of the small sunroof roof, and compensate the whole process according to the springback result. However, the above methods all have the unreasonable simulation, which leads to the size and surface quality of the common mold roof cannot meet the requirements of the whole vehicle configuration, so that the springback of the roof still cannot be well controlled, and the mold development cost remains high due to the multiple modifications of the mold. Summary of the invention

[0003] The main purpose of the present invention is to provide a method, device and computer-readable storage medium for realizing different configurations of common mold top covers, aiming to solve the technical problems of mold development caused by the irrationality of the simulation of existing common mold top covers, which makes the size and surface quality of the common mold top covers fail to meet the requirements, resulting in the need for multiple rectifications of the produced top cover molds.

[0004] To achieve the above object, the present invention provides a method for implementing different configurations of top covers of a common mode, and the method for implementing different configurations of top covers of a common mode comprises the following steps:

[0005] Obtaining a simulation file of the entire process of the first common-mode top cover through a simulation program;

[0006] Based on the simulation file, simulating the rebound of the first common-mode top cover, and obtaining a first simulated rebound result and a second simulated rebound result;

[0007] Determining whether the trends of the first simulated springback result and the second simulated springback result are consistent;

[0008] If they are consistent, the second simulated springback result is analyzed to determine the springback of the first MCC constraint point, and after springback compensation is performed on the first common mode top cover according to the springback result of the first MCC constraint point to obtain the second common mode top cover, the second common mode top cover is uploaded to the simulation software for analysis and verification;

[0009] Obtaining a first verification result based on the analysis and verification, and determining whether the first verification result meets the requirements;

[0010] If the first verification result meets the requirement, the rebound compensation data of the second common mode top cover is output.

[0011] Optionally, the step of obtaining a simulation file of the entire process of the first common-mode top cover through a simulation program includes:

[0012] The working contents of different types of common-mode top covers in the first common-mode top covers are respectively set by a simulation program, and calculations are performed based on the working contents;

[0013] After detecting that the calculation of the first common mode cap is completed, the calculation result of the first common mode cap is merged into the simulation file.

[0014] Optionally, the step of simulating the rebound of the first common-mode top cover based on the simulation file and obtaining a first simulated rebound result and a second simulated rebound result includes:

[0015] Based on the simulation file, the pure rebound of the first common mode top cover at the point without gravity and without constraint and the rebound at the point with gravity and GD&T constraint are simulated, and the first simulated rebound result and the second simulated rebound result of the pure rebound and the rebound at the point with gravity and GD&T constraint are obtained respectively.

[0016] Optionally, after the step of determining whether the trends of the first simulated rebound result and the second simulated rebound result are consistent, the method further includes:

[0017] If the trends of the first simulation springback result and the second simulation springback result are inconsistent, adjusting the springback data of the GD&T constraint point springback according to the first simulation springback result to obtain a second MCC constraint point springback;

[0018] Uploading the second MCC constraint point rebound to the simulation software for analysis and verification to obtain a second verification result, and determining whether the second verification result meets the requirements;

[0019] If the second verification result meets the requirement, the first common mode top cover is rebound compensated according to the rebound of the second MCC constraint point to obtain the second common mode top cover.

[0020] Optionally, before the step of obtaining a first verification result based on the analysis and verification and judging whether the first verification result meets the requirement, the step further includes:

[0021] Detecting whether the rebound result of the MCC main molding surface of the second common mold top cover meets the requirements according to the uploaded compensation amount combined with the rebound of the first MCC constraint point;

[0022] If the springback result of the MCC main molding surface of the second common mold top cover meets the requirement, then it is detected whether the MCC structural surface of the second common mold top cover meets the requirement.

[0023] Optionally, before the step of detecting whether the MCC structural surface of the second common mode top cover meets the requirements, the step further includes:

[0024] According to the springback result of the MCC main molding surface of the second common mold top cover, Autoform is used to iteratively compensate the full-sequence structural surface of the second common mold top cover.

[0025] Optionally, after the step of outputting the data of the rebound compensation of the second common mode top cover, the method further comprises:

[0026] The springback analysis result and the mold top cover produced according to the springback analysis result are compared and verified, and verification data is obtained.

[0027] Optionally, after the step of obtaining verification data, the method further includes:

[0028] The springback result of the third common mode top cover is tested according to the verification data in combination with the third verification result, and the verification data is updated according to the springback result of the third common mode top cover.

[0029] In addition, to achieve the above-mentioned purpose, the present invention also provides a device for implementing different configurations of common mode top covers, including a memory, a processor, and an implementation processing program for different configurations of common mode top covers stored in the memory and executable on the processor, wherein the implementation processing program for different configurations of common mode top covers implements the steps of the above-mentioned method for implementing different configurations of common mode top covers when executed by the processor.

[0030] In addition, to achieve the above-mentioned purpose, the present invention also provides a computer-readable storage medium, on which is stored an implementation program for different configurations of common mode top covers, and when the implementation program for different configurations of common mode top covers is executed by a processor, the steps of the implementation method of different configurations of common mode top covers are implemented.

[0031] The present invention uses a simulation file to simulate the operation method of the entire process of common-mode top covers with different configurations, replacing the previous method of separately setting multiple simulation files to simulate common-mode top covers, greatly shortening the analysis time and reducing the hard disk space occupied. By using the MCC point selection method for compensation of the common-mode top cover, it replaces the previous method of directly compensating according to the GD&T point or directly moving the GD&T point to the A-side rebound result, so that the rebound result is more reliable, the improved compensation scheme is more accurate, and is more conducive to controlling the part size, avoiding multiple mold rectifications and resulting high mold debugging costs. By using the rebound compensation method that meets the common-mode top covers with different configurations, it replaces the previous rebound compensation method that only considers one common-mode top cover, ensuring that the size and surface quality of the common-mode top covers with different configurations can meet the required requirements, ensuring the smooth implementation of the common-mode top cover process, and making a great contribution to reducing the mold development cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the structure of the hardware operating environment involved in the embodiment of the present invention;

[0033] Figure 2 It is a flow chart of an embodiment of a method for implementing a common-mode top cover with different configurations according to the present invention;

[0034] Figure 3 for Figure 2 Detailed flow chart of step S30;

[0035] Figure 4 for Figure 2 A detailed flow chart of step S50;

[0036] Figure 5 Schematic diagram of the before and after comparison of moving the GD&T constraint point from the flange surface to the adjacent A surface.

[0037] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0038] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0039] The main solution of the embodiment of the present invention is: by using a simulation file to simulate common mold top covers with different configurations combined with the judgment logic of minimum constraint points and springback compensation, the problem of surface defects caused by different compensation amounts between common mold top cover processes is solved, and the mold development cost is reduced while ensuring that top covers with different configurations can meet the requirements of the vehicle configuration.

[0040] Due to the irrationality of the common mold top cover simulation in the prior art, the size and surface quality of the common mold top cover cannot meet the requirements of the vehicle configuration, and the rebound of the top cover cannot be well controlled. As a result, the mold development cost remains high due to multiple mold modifications.

[0041] The present invention provides a solution to simulate the whole process of common mold top covers with different configurations, and combines the judgment logic of minimum constraint points and rebound compensation based on the simulation results to ensure that the size and surface quality of common mold top covers with different configurations can meet the requirements of the whole vehicle configuration, which greatly contributes to the reduction of mold development costs.

[0042] like Figure 1 As shown, Figure 1 It is a schematic diagram of the terminal structure of the hardware operating environment involved in the embodiment of the present invention.

[0043] The device for implementing the top cover with different configurations of the common mode in the embodiment of the present invention can be a portable terminal device with a display function, such as a PC, a tablet computer, and a portable computer.

[0044] like Figure 1 As shown, the terminal may include: a processor 1001, such as a CPU, a network interface 1004, a user interface 1003, a memory 1005, and a communication bus 1002. Among them, the communication bus 1002 is used to realize the connection and communication between these components. The user interface 1003 may include a display screen (Display), an input unit such as a keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface and a wireless interface. The network interface 1004 may optionally include a standard wired interface and a wireless interface (such as a WI-FI interface). The memory 1005 may be a high-speed RAM memory, or a stable memory (non-volatile memory), such as a disk memory. The memory 1005 may also be a storage device independent of the aforementioned processor 1001.

[0045] Optionally, the implementation device may also include a camera, an RF (Radio Frequency) circuit, a sensor, an audio circuit, a WiFi module, and the like. Among them, sensors include light sensors, motion sensors, and other sensors. Specifically, the light sensor may include an ambient light sensor and a proximity sensor, wherein the ambient light sensor may adjust the brightness of the display screen according to the brightness of the ambient light, and the proximity sensor may turn off the display screen and / or backlight when the mobile terminal is moved to the ear. As a type of motion sensor, the gravity acceleration sensor can detect the magnitude of acceleration in each direction (generally three axes), and can detect the magnitude and direction of gravity when stationary. It can be used for applications that identify the posture of the mobile terminal (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometers, tapping), etc.; of course, smart TVs can also be equipped with other sensors such as gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., which will not be repeated here.

[0046] Those skilled in the art will understand that Figure 1 The structure of the rebound simulation and compensation device shown in the figure does not constitute a limitation on the structure of the rebound simulation and compensation device, and may include more or less components than shown in the figure, or combine certain components, or arrange the components differently.

[0047] like Figure 1 As shown, the memory 1005 as a computer storage medium may include an operating system, a network communication module, a user interface module, and implementation programs of different configuration covers of the common mode.

[0048] exist Figure 1 In the rebound simulation and compensation device shown, the network interface 1004 is mainly used to connect to the backend server and perform data communication with the backend server; the user interface 1003 is mainly used to connect to the client (user end) and perform data communication with the client; and the processor 1001 can be used to call the implementation program of the different configuration top covers of the common mode stored in the memory 1005, and perform the following operations:

[0049] Obtaining a simulation file of the entire process of the first common-mode top cover through a simulation program;

[0050] Based on the simulation file, simulating the rebound of the first common-mode top cover, and obtaining a first simulated rebound result and a second simulated rebound result;

[0051] Determining whether the trends of the first simulated springback result and the second simulated springback result are consistent;

[0052] If they are consistent, the second simulated springback result is analyzed to determine the springback of the first MCC constraint point, and after springback compensation is performed on the first common mode top cover according to the springback result of the first MCC constraint point to obtain the second common mode top cover, the second common mode top cover is uploaded to the simulation software for analysis and verification;

[0053] Obtaining a first verification result based on the analysis and verification, and determining whether the first verification result meets the requirements;

[0054] If the first verification result meets the requirement, the data of the springback compensation of the second common mode top cover is output. ;

[0055] Further, the processor 1001 may call the implementation program of different configuration top covers of the common mode stored in the memory 1005, and perform the following operations:

[0056] The step of obtaining a simulation file of the entire process of the first common-mode top cover through a simulation program includes: respectively setting the working contents of different types of common-mode top covers in the first common-mode top cover through a simulation program, and performing calculations based on the working contents;

[0057] After detecting that the calculation of the first common mode cap is completed, the calculation result of the first common mode cap is merged into the simulation file.

[0058] Further, the processor 1001 may call the implementation program of different configuration top covers of the common mode stored in the memory 1005, and perform the following operations:

[0059] Based on the simulation file, the steps of simulating the rebound of the first common mode top cover and obtaining a first simulated rebound result and a second simulated rebound result include: based on the simulation file, simulating the pure rebound of the first common mode top cover at a point without gravity and without constraints and at a point with gravity and GD&T constraints, and obtaining a first simulated rebound result and a second simulated rebound result of the pure rebound and the rebound at the point with gravity and GD&T constraints, respectively.

[0060] Further, the processor 1001 may call the implementation program of different configuration top covers of the common mode stored in the memory 1005, and perform the following operations:

[0061] After the step of determining whether the trends of the first simulated springback result and the second simulated springback result are consistent, the method further includes: if the trends of the first simulated springback result and the second simulated springback result are inconsistent, adjusting the springback data of the GD&T constraint point springback according to the first simulated springback result to obtain a second MCC constraint point springback;

[0062] Uploading the second MCC constraint point rebound to the simulation software for analysis and verification to obtain a second verification result, and determining whether the second verification result meets the requirements;

[0063] If the second verification result meets the requirement, the first common mode top cover is rebound compensated according to the rebound of the second MCC constraint point to obtain the second common mode top cover.

[0064] Further, the processor 1001 may call the implementation program of different configuration top covers of the common mode stored in the memory 1005, and perform the following operations:

[0065] Before obtaining a first verification result based on the analysis and verification and judging whether the first verification result meets the requirement, detecting whether the rebound result of the MCC main mold surface of the second common-mode top cover meets the requirement according to the uploaded compensation amount combined with the rebound of the first MCC constraint point;

[0066] If the springback result of the MCC main molding surface of the second common mold top cover meets the requirement, then it is detected whether the MCC structural surface of the second common mold top cover meets the requirement.

[0067] Further, the processor 1001 may call the implementation program of different configuration top covers of the common mode stored in the memory 1005, and perform the following operations:

[0068] Before the step of detecting whether the MCC structural surface of the second common mold top cover meets the requirements, Autoform is used to iteratively compensate the full-sequence structural surface of the second common mold top cover according to the springback result of the MCC main mold surface of the second common mold top cover.

[0069] Further, the processor 1001 may call the implementation program of different configuration top covers of the common mode stored in the memory 1005, and perform the following operations:

[0070] After the step of outputting the data of the springback compensation of the second common mold top cover, the springback analysis result is compared and verified with the mold top cover produced according to the springback analysis result, and verification data is obtained.

[0071] Further, the processor 1001 may call the implementation program of different configuration top covers of the common mode stored in the memory 1005, and perform the following operations:

[0072] After the step of obtaining the verification data, the springback result of the third common mode top cover is tested according to the verification data in combination with the third verification result, and the verification data is updated according to the springback result of the third common mode top cover.

[0073] Reference Figure 2An embodiment of the present invention provides a method for implementing different configurations of top covers of a common mode, and the method for implementing different configurations of top covers of a common mode includes:

[0074] Step S10, obtaining a simulation file of the entire process of the first common-mode top cover through a simulation program;

[0075] A common mold roof refers to a mold used to generate a vehicle roof. The existing vehicle roof has three configurations, namely, no sunroof, small sunroof and panoramic sunroof. The conventional processes for simulating the vehicle roofs of these three configurations are divided into two types. One is to simulate the full-process rebound results of the three vehicle roofs respectively, but only compensate according to the rebound amount of the vehicle roof of one configuration, and then locally compensate the unqualified area for a single process. This will cause the travel surface defects of a certain vehicle roof due to the different compensation amounts between different processes; the other is to simulate the rebound result of only one vehicle roof, and then compensate for the full-process mold according to the rebound result. Although this can make the compensation amount of the whole process the same, because only the rebound result of one vehicle roof is simulated, the size qualification rate of other vehicle roofs cannot meet the requirements of the whole vehicle configuration.

[0076] The present application uses a simulation program to simulate the entire process of the three types of vehicle roof covers at the same time, and places the simulation results of the three types of vehicle roof covers in one simulation file, instead of the above-mentioned method of setting up three simulation files to simulate the three types of vehicle roof covers separately, thereby shortening the analysis time. In addition, the simultaneous simulation of the entire process of the three types of vehicle roof covers can make the generated simulation files more in line with the actual production situation, avoiding the situation where only considering one type of vehicle roof cover causes the size qualification rate of other vehicle roof covers to fail to meet the overall vehicle configuration.

[0077] Optionally, the step of obtaining a simulation file of the entire process of the first common-mode top cover through a simulation program in step S10 includes:

[0078] Step A1, respectively setting the working contents of different types of common-mode top covers in the first common-mode top covers through a simulation program, and performing calculations based on the working contents;

[0079] In the simulation program, first set up the analysis process of the small skylight, the tool body of each sequence, the rebound reference value and other work contents, and start the calculation after checking the option of "output restart file after each sequence" to obtain the simulation module 1 of the whole process of the small skylight top cover.

[0080] After the output of simulation module 1 for the entire process of the small skylight top cover is completed, that is, after the first-order rebound from simulation module 1, a new simulation module 2 is restarted, and the working content of the small skylight top cover is replaced with the working content of the no skylight top cover in simulation module 2, and the calculation is started to obtain simulation module 2 for the entire process of the no skylight top cover.

[0081] After the output of the simulation module 2 for the entire process without a sunroof top cover is completed, that is, after rebounding from the second order of the simulation module 2, a new simulation module 3 is restarted, and the working content of the without sunroof top cover in the simulation module 3 is replaced with the working content of the panoramic sunroof top cover, and the calculation is started to obtain the simulation module 3 for the entire process of the panoramic sunroof top cover.

[0082] Step A2: after detecting that the calculation of the first common mode top cover is completed, merging the calculation result of the first common mode top cover into the simulation file.

[0083] After detecting that the simulation modules of the common-mode top covers of the three configurations of the vehicle have been output, all the simulation modules are integrated into one simulation file, and the generated simulation file is output.

[0084] Step S20, simulating the rebound of the first common-mode top cover based on the simulation file, and obtaining a first simulated rebound result and a second simulated rebound result;

[0085] Based on the output simulation file, the rebound simulation of the vehicle roofs with three configurations is performed, and the first simulation rebound result and the second rebound simulation result are obtained according to the rebound simulation.

[0086] Among them, rebound refers to the physical deformation of the parts used to manufacture the vehicle roof under the action of force. When the pressure is released, it is a physical transformation to a restored or nearly restored state. The first simulation result is the springback of each part of the vehicle roof. The factors affecting the size of the springback include the yield strength of the material of each part, elastic modulus, plate thickness, hardening index, etc.

[0087] The first simulated rebound result refers to the rebound result of the first common mode top cover obtained by pure rebound under the condition of no gravity and no constraint point.

[0088] The second simulated springback result refers to the springback result of the first common mode top cover obtained by springing back under the conditions of gravity and GD&T constraint point springback.

[0089] Optionally, in step S20, based on the simulation file, the step of simulating the rebound of the first common-mode top cover and obtaining a first simulated rebound result and a second simulated rebound result includes:

[0090] Step B, based on the simulation file, simulate the pure rebound of the first common mode top cover at the point without gravity and without constraint and the rebound at the point with gravity and GD&T constraint, and obtain the first simulated rebound result and the second simulated rebound result of the pure rebound and the rebound at the point with gravity and GD&T constraint, respectively.

[0091] The rebound simulation of the vehicle roof is based on the pure rebound of the unconstrained points without gravity and the rebound of the constrained points with gravity and GD&T (Global Dimensioning and Tolerancing).

[0092] Pure springback simulation without gravity and constraint points refers to the springback simulation that only simulates the springback of the vehicle roof parts after processing without adding gravity and any reference points for constraint.

[0093] The springback simulation with gravity and GD&T constraint point springback refers to the springback simulation after adding gravity and the reference points preset in the GD&T diagram for constraint.

[0094] Step S30, determining whether the trends of the first simulated rebound result and the second simulated rebound result are consistent;

[0095] Based on the first simulated springback result and the second springback simulation result, the pure springback result of the gravity-free and unconstrained point in the first simulated springback result and the springback result of the GD&T constrained point in the second simulated springback result are compared to determine whether the springback result value of the springback point with gravity and GD&T constrained point and the pure springback result value of the gravity-free and unconstrained point exceed the judgment tolerance.

[0096] Step S40: If they are consistent, the second simulated springback result is analyzed to determine the springback of the first MCC constraint point, and after springback compensation is performed on the first common mode top cover according to the springback result of the first MCC constraint point to obtain the second common mode top cover, the second common mode top cover is uploaded to the simulation software for analysis and verification;

[0097] If the trends of the first simulated springback results and the second simulated springback results are consistent, that is, the springback result values ​​of the springback with gravity and GD&T constraint points and the pure springback result values ​​of the springback without gravity and constraint points do not exceed the judgment tolerance, it means that there is no surface collapse in the springback simulation results of the GD&T constraint point springback. At this time, springback compensation will be performed on the data of the first common mode top cover based on the springback result of the first MCC constraint point. After the springback compensation, the second common mode top cover will be obtained. At this time, in order to further enhance the accuracy of the output first MCC constraint point springback, the obtained second common mode top cover will be uploaded to the simulation software for analysis and verification.

[0098] Among them, the first MCC constraint point refers to the rebound result value obtained under the condition of gravity and GD&T constraint point rebound (i.e., the second simulated springback result) and the rebound result value obtained under the condition of no gravity and no constraint point (i.e., the first simulated springback result), and is determined according to the analysis of the second simulated springback result when the error between them does not exceed the judgment tolerance.

[0099] Step S50, obtaining a first verification result based on the analysis and verification, and determining whether the first verification result meets the requirements;

[0100] After obtaining the first verification result in the simulation software, if the simulated rebound analysis result of the second common mode top cover obtained according to the analysis of the first verification result output by the simulation software does not exceed the judgment tolerance, it means that the simulated rebound result of the second common mode top cover meets the requirements, and the first MCC (Minimum Clamping Concepp) constraint point can be directly output. The user can upload the compensation amount according to the different requirements of the vehicle top cover and combine the rebound of the first MCC constraint point to perform rebound simulation, and detect whether the rebound result value of the vehicle common mode top cover after compensation does not exceed the judgment tolerance.

[0101] The compensation amount is a reverse compensation for the springback of the part. After compensation, the surface deviation of the part meets the tolerance requirements of GD&T.

[0102] The first verification result refers to the rebound result of the MCC constraint point rebound of the second common mode top cover and the rebound result of the GD&T constraint point rebound of the second common mode top cover output by the simulation software.

[0103] Step S60: if the first verification result meets the requirement, outputting the rebound compensation data of the second common mode top cover.

[0104] According to the first verification result, determine whether the springback of the MCC constraint point of the second common mold top cover meets the expected verification result; if it meets the requirements, analyze and verify the springback of the GD&T constraint point of the second common mold top cover. If the verification result of the GD&T constraint point of the second common mold top cover also meets the expected verification result, it means that the springback analysis result simulated in the simulation software does not exceed the judgment tolerance. The springback analysis result after compensation of the second common mold top cover, that is, the springback compensation data, can be directly output for comparison and verification with the subsequent mold top cover produced after compensation, so as to improve the success rate of subsequent production and reduce the high cost of mold debugging caused by multiple mold rectifications.

[0105] Optionally, after the step of outputting the data of the rebound compensation of the second common mode top cover in step S60, the method further includes:

[0106] Step C: Compare and verify the springback analysis result with the mold top cover produced according to the springback analysis result, and obtain verification data.

[0107] Optionally, after the step of obtaining verification data in step C, the method further includes:

[0108] Step D: testing the rebound result of the third common mode top cover according to the verification data in combination with the third verification result, and updating the verification data according to the rebound result of the third common mode top cover.

[0109] It should be noted that the third verification result refers to the verification result obtained after analyzing and verifying the mold top cover produced according to the rebound analysis result of the second common mold top cover.

[0110] The third common mold top cover is a common mold top cover that is subsequently manufactured according to the rebound data of the second common mold top cover, and is used to optimize and adjust the rebound data of the second common mold top cover.

[0111] In this embodiment, the entire process of three types of vehicle roof covers is simulated simultaneously through a simulation program, which shortens the analysis time and makes the generated simulation files more in line with the actual production situation, avoiding the situation where only one type of vehicle roof cover is considered, resulting in the size qualification rate of other vehicle roof covers failing to meet the configuration of the whole vehicle. The judgment logic of the least constraint points is adopted during the springback simulation to make the compensation scheme more accurate and more conducive to the control of the size of the vehicle roof parts. The judgment logic of springback compensation is adopted during the springback compensation, and the compensation schemes of vehicle roof covers with different configurations are comprehensively considered to ensure that the size and surface quality of the three types of vehicle roof covers can meet the requirements of the configuration of the whole vehicle. At the same time, due to the precise control of the parts, the number of rectification times of the mold roof is reduced, saving the debugging cost of the mold roof.

[0112] Further, see Figure 3 An embodiment of the present invention provides a method for implementing a common-mode top cover with different configurations. Based on the embodiment shown in step S30 above, after the step of determining whether the trends of the first simulated rebound result and the second simulated rebound result are consistent, the method further includes:

[0113] Step S31, refer to Figure 5 If the trends of the first simulation springback result and the second simulation springback result are inconsistent, the springback data of the springback with gravity and GD&T constraint point is adjusted according to the first simulation springback result to obtain the second MCC constraint point springback;

[0114] If the trends of the first springback simulation result and the second springback simulation result are inconsistent, it means that the common mold top cover of the second springback simulation result has a surface collapse phenomenon. It is necessary to adjust the springback data of the springback with gravity and GD&T constraint points according to the first springback simulation result. For the area where the springback simulation result with gravity and GD&T constraint points has a surface collapse, but the area where the pure springback simulation result does not collapse, move the GD&T constraint point from the flange surface to the adjacent A surface. For details, refer to Figure 5, move A3-1 and A3-2, A4-1 and A4-2, A5-1 and A5-2 to A3-1' and A3-2', A4-1' and A4-2', A5-1' and A5-2', and then get the second MCC constraint point rebound.

[0115] Among them, the second MCC constraint point springback refers to the situation where the error between the springback result value obtained in the case of gravity and GD&T constraint point springback (i.e., the second simulated springback result) and the springback result value obtained in the case of no gravity and no constraint point (i.e., the first simulated springback result) exceeds the judgment tolerance. After adjusting the springback data of the springback with gravity and GD&T constraint point springback, the adjusted springback data of the springback with gravity and GD&T constraint point springback are compared with the springback result value obtained in the case of no gravity and no constraint point (i.e., the first simulated springback result). If the error obtained by the comparison does not exceed the judgment tolerance at this time, the second MCC constraint point springback is obtained by analysis and determination based on the adjusted springback data of the springback with gravity and GD&T constraint point springback.

[0116] Step S32, uploading the second MCC constraint point rebound to the simulation software for analysis and verification to obtain a second verification result, and determining whether the second verification result meets the requirements;

[0117] After obtaining the rebound of the second MCC constraint point, the rebound of the GD&T constraint point rebound of the vehicle roof is simulated and analyzed again based on the second MCC constraint point rebound to obtain the second simulation result, and it is determined whether the rebound result value of the rebound with gravity and GD&T constraint point in the second simulation result and the rebound result value of the pure rebound without gravity and constraint point in the second simulation result exceed the judgment tolerance.

[0118] The second verification result refers to the comparison result of the adjusted springback data with gravity and GD&T constraint points and the springback result value obtained without gravity and constraint points (ie, the first simulated springback result).

[0119] Step S33: If the second verification result meets the requirement, the first common mode top cover is subjected to rebound compensation according to the rebound of the second MCC constraint point to obtain the second common mode top cover.

[0120] If the second simulation result meets the requirements, that is, the rebound result value of the rebound point with gravity and GD&T constraint in the second simulation result and the pure rebound result value of the point without gravity and constraint do not exceed the judgment tolerance, it means that the rebound trend of the rebound point with gravity and GD&T constraint after adjustment is consistent with the pure rebound trend. In order to further enhance the accuracy of the rebound of the second MCC constraint point, the rebound of the second MCC constraint point needs to be uploaded to the simulation software for analysis and verification to obtain the first verification result.

[0121] In this embodiment, when the first simulation result in the minimum constraint point logic judgment does not meet the requirements, a compensation method of selecting the MCC constraint point for compensation is formulated, which replaces the conventional technology of directly compensating according to the GD&T constraint point or directly moving the GD&T constraint point to the springback result of the A surface, so that the springback result is more reliable and the compensation scheme is more accurate.

[0122] Further, see Figure 4 An embodiment of the present invention provides a method for implementing different configurations of top covers of a common mode. Based on the embodiment shown in the above step S50, before the step of obtaining a first verification result based on the analysis and verification and determining whether the first verification result meets the requirements, it also includes:

[0123] Step S51, detecting whether the rebound result of the MCC main molding surface of the second common mold top cover meets the requirement according to the uploaded compensation amount combined with the rebound of the first MCC constraint point;

[0124] If the springback result of the MCC main mold surface of the second common mold top cover meets the requirements, that is, the springback result value of the GD&T constraint point springback and the springback result value of the pure springback without gravity and constraint point do not exceed the judgment tolerance, then the springback of the first MCC constraint point for springback compensation is directly determined based on the springback result with gravity and GD&T constraint point springback.

[0125] It should be noted that the first MCC constraint point rebound includes the rebound tendency of the vehicle roof in all configurations.

[0126] After determining the rebound of the first MCC constraint point, the user uploads the compensation amount of the full-sequence main profile of the vehicle top cover according to the rebound of the first MCC constraint point of the vehicle top cover with different configurations, and detects whether the rebound result value of the MCC main profile of the vehicle top cover after compensation exceeds the judgment tolerance.

[0127] Step S52: if the springback result of the MCC main molding surface of the second common mold top cover meets the requirement, then check whether the MCC structural surface of the first common mold top cover meets the requirement.

[0128] If the rebound result value of the MCC main profile of the second vehicle roof meets the requirements, that is, the rebound result value of the MCC main profile of the compensated vehicle roof does not exceed the judgment tolerance, then check whether the rebound result value of the MCC structural surface of the compensated vehicle roof exceeds the judgment tolerance.

[0129] Optionally, before the step of detecting whether the MCC structural surface of the second common-mode top cover meets the requirements in step S52, the method further includes:

[0130] Step E: using Autoform to iteratively compensate the full-sequence structural surface of the second common mold top cover according to the springback result of the MCC main mold surface of the second common mold top cover.

[0131] Before detecting whether the rebound result value of the MCC structural surface of the compensated vehicle roof exceeds the judgment tolerance, it is necessary to use Autoform to iteratively compensate the full-sequence structural surface of the vehicle roof according to the rebound result of the MCC main surface of the compensated vehicle roof obtained in step S44.

[0132] To simply understand the main surface and the structural surface, the main surface is visible to the naked eye, while the structural surface is placed under the main surface and cannot be seen by the naked eye.

[0133] In this embodiment, by formulating the logical judgment of rebound compensation, the rebound compensation method of all configured vehicle roofs is fully taken into consideration, avoiding the situation where the dimensions of other vehicle roofs cannot meet the actual production qualification rate due to considering the rebound compensation method of only one vehicle roof. Under the premise of reducing the mold development cost, the size and surface quality of the produced vehicle roof are guaranteed.

[0134] In addition, an embodiment of the present invention further proposes a device for implementing a common mode top cover with different configurations, wherein the device for implementing a common mode top cover with different configurations comprises a memory, a processor, and an implementation processing program for a common mode top cover with different configurations stored in the memory and executable on the processor, wherein the processor implements the steps of the implementation method for implementing a common mode top cover with different configurations when executing the implementation processing program for a common mode top cover with different configurations.

[0135] In addition, the present invention also proposes a computer-readable storage medium, on which is stored an implementation program for different configurations of common mode top covers, and when the implementation program for different configurations of common mode top covers is executed by a processor, the steps of the implementation method of the above-mentioned common mode top covers with different configurations are implemented.

[0136] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or system. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or system including the element.

[0137] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0138] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) as described above, and includes a number of instructions for a terminal device (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in each embodiment of the present invention.

[0139] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A method for realizing different configurations of common-mode top covers, characterized in that: The method for implementing the common mode top cover with different configurations comprises the following steps: Obtaining a simulation file of the entire process of the first common-mode top cover through a simulation program; Based on the simulation file, simulating the rebound of the first common-mode top cover, and obtaining a first simulated rebound result and a second simulated rebound result; Determining whether the trends of the first simulated springback result and the second simulated springback result are consistent; If they are consistent, the second simulated springback result is analyzed to determine the springback of the first MCC constraint point, and after springback compensation is performed on the first common mode top cover according to the springback result of the first MCC constraint point to obtain the second common mode top cover, the second common mode top cover is uploaded to the simulation software for analysis and verification; Obtaining a first verification result based on the analysis and verification, and determining whether the first verification result meets the requirements; If the first verification result meets the requirement, outputting the rebound compensation data of the second common mode top cover; The step of obtaining a simulation file of the entire process of the first common-mode top cover through a simulation program includes: The working contents of different types of common-mode top covers in the first common-mode top covers are respectively set by a simulation program, and calculations are performed based on the working contents; After detecting that the calculation of the first common mode top cover is completed, merging the calculation result of the first common mode top cover into the simulation file; The step of simulating the rebound of the first common-mode top cover based on the simulation file and obtaining a first simulated rebound result and a second simulated rebound result includes: Based on the simulation file, the pure rebound of the first common mode top cover at the point without gravity and without constraint and the rebound at the point with gravity and GD&T constraint are simulated, and the first simulated rebound result and the second simulated rebound result of the pure rebound and the rebound at the point with gravity and GD&T constraint are obtained respectively.

2. The method for realizing different configuration top covers of the common mode as claimed in claim 1, characterized in that: After the step of determining whether the trends of the first simulated rebound result and the second simulated rebound result are consistent, the method further includes: If the trends of the first simulation springback result and the second simulation springback result are inconsistent, adjusting the springback data of the springback with gravity and GD&T constraint point according to the first simulation springback result to obtain the second MCC constraint point springback; Uploading the second MCC constraint point rebound to the simulation software for analysis and verification to obtain a second verification result, and determining whether the second verification result meets the requirements; If the second verification result meets the requirement, the first common mode top cover is rebound compensated according to the rebound of the second MCC constraint point to obtain the second common mode top cover.

3. The method for realizing different configurations of the common mold top cover as claimed in claim 1, characterized in that: Before the step of obtaining a first verification result based on the analysis and verification and judging whether the first verification result meets the requirement, the method further includes: Detecting whether the rebound result of the MCC main molding surface of the second common mold top cover meets the requirements according to the uploaded compensation amount combined with the rebound of the first MCC constraint point; If the springback result of the MCC main molding surface of the second common mold top cover meets the requirement, then it is detected whether the MCC structural surface of the second common mold top cover meets the requirement.

4. The method for realizing different configurations of the common mold top cover as claimed in claim 3, characterized in that: Before the step of detecting whether the MCC structural surface of the second common mode top cover meets the requirements, the method further includes: According to the springback result of the MCC main molding surface of the second common mold top cover, Autoform is used to iteratively compensate the full-sequence structural surface of the second common mold top cover.

5. The method for realizing different configurations of the common mold top cover as claimed in claim 1, characterized in that: After the step of outputting the data of the rebound compensation of the second common mode top cover, the method further includes: The springback analysis result and the mold top cover produced according to the springback analysis result are compared and verified, and verification data is obtained.

6. The method for realizing different configurations of the common mold top cover as claimed in claim 5, characterized in that: After the step of obtaining verification data, the method further includes: The springback result of the third common mode top cover is tested according to the verification data in combination with the third verification result, and the verification data is updated according to the springback result of the third common mode top cover.

7. A device for realizing different configurations of top covers of a common mode, characterized in that: The invention comprises a memory, a processor and an implementation processing program for different configuration top covers of a common mode which is stored in the memory and can be run on the processor, wherein the processor executes the implementation processing program for different configuration top covers of the common mode, which is a step of implementing the implementation method for different configuration top covers of the common mode described in any one of claims 1-6.

8. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores an implementation program for common-mode top covers with different configurations, and when the implementation program for common-mode top covers with different configurations is executed by a processor, the steps of the implementation method for common-mode top covers with different configurations described in any one of claims 1-6 are implemented.

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