Production control methods, devices and equipment for double-door rings

Abstract

This invention discloses a production control method, apparatus, and equipment for double-door rings. The method includes: acquiring part information; determining a first simulated double-door ring based on the part information; determining a target plating strategy for the first simulated double-door ring from a set of preset plating strategies; obtaining a second simulated double-door ring based on the target plating strategy and the first simulated double-door ring; determining hot stamping process parameters based on the target plating strategy; and performing hot stamping simulation analysis on the second simulated double-door ring based on the hot stamping process parameters to obtain a third simulated double-door ring and the first simulation result; if the first simulation result meets a first preset requirement, performing collision simulation analysis on the third simulated double-door ring to obtain a second simulation result; if the second simulation result meets a second preset requirement, controlling the actual production of the double-door ring based on the part information, the target plating strategy, and the hot stamping process parameters. This invention solves the technical problem of low production efficiency of double-door rings.

Description

Technical Field

[0001] This invention belongs to the field of vehicle manufacturing technology, and in particular relates to a production control method, device and equipment for double door rings. Background Technology

[0002] The door ring is the frame of a vehicle, and its production is a crucial step in vehicle manufacturing, with its efficiency directly impacting overall vehicle production efficiency. The production process for door rings involves first producing the rings themselves, then conducting quality tests. If the tests fail, production parameters are redefined, and production is repeated. This leads to low production efficiency for door rings, which in turn reduces overall vehicle production efficiency, increases costs, and diminishes the company's competitiveness. Therefore, the low production efficiency of door rings is a pressing technical problem that needs to be addressed. Summary of the Invention

[0003] This invention provides a production control method, apparatus, and equipment for double-door rings, which solves the technical problem of low production efficiency of double-door rings.

[0004] In a first aspect, embodiments of the present invention provide a production control method for a double-door ring, comprising: acquiring part information; determining a first simulated double-door ring based on the part information, wherein the part information includes the strength, shape, and thickness of each of a plurality of parts; determining a target plating strategy for the first simulated double-door ring from a plurality of preset plating strategies; obtaining a second simulated double-door ring based on the target plating strategy and the first simulated double-door ring; determining hot stamping process parameters based on the target plating strategy; and performing hot stamping simulation analysis on the second simulated double-door ring based on the hot stamping process parameters to obtain a third simulated double-door ring and a first simulation result; if the first simulation result meets a first preset requirement, performing collision simulation analysis on the third simulated double-door ring to obtain a second simulation result; if the second simulation result meets a second preset requirement, controlling the actual production of the double-door ring based on the part information, the target plating strategy, and the hot stamping process parameters.

[0005] In conjunction with the first aspect of the present invention, in some embodiments, determining the target coating strategy for the first simulated double-gate ring from a preset plurality of coating strategies includes: for the first simulated double-gate ring, obtaining a plurality of weights and a plurality of influencing factors, wherein the plurality of weights correspond one-to-one with the plurality of influencing factors, and the plurality of influencing factors include price, oxidation resistance, and corrosion resistance; determining an evaluation score for each of the plurality of coating strategies based on the plurality of influencing factors and the plurality of weights; and determining the target coating strategy based on the evaluation score of each of the plurality of coating strategies.

[0006] In conjunction with the first aspect of the present invention, in some embodiments, the parameter types of the hot stamping process parameters include holding temperature and holding time. Determining the hot stamping process parameters based on the target coating strategy includes: if the target coating strategy is to not add a coating, the holding temperature is 880–950°C and the holding time is 3–8 min; if the target coating strategy is to add an aluminum-silicon coating, the holding temperature is 880–950°C and the holding time is 4–8 min; if the target coating strategy is to add a zinc-based coating, the holding temperature is 880–910°C and the holding time is 4–6 min.

[0007] In conjunction with the first aspect of the present invention, in some embodiments, the method further includes: if the first simulation result does not meet the first preset requirement, re-executing the determination of hot stamping process parameters based on the target coating strategy.

[0008] In conjunction with the first aspect of the present invention, in some embodiments, the third simulated double-door ring includes multiple straight welds, which are welds between the multiple parts. After performing hot stamping simulation analysis on the second simulated double-door ring based on the hot stamping process parameters, the method further includes: performing stress-strain simulation analysis on the third simulated double-door ring to obtain the stress-strain concentration location of the third simulated double-door ring; determining a weld replacement strategy based on the stress-strain concentration location; and replacing some of the multiple straight welds based on the weld replacement strategy, so that the welds of the third simulated double-door ring avoid the stress-strain concentration location.

[0009] In conjunction with the first aspect of the present invention, in some embodiments, determining the weld replacement strategy based on the stress-strain concentration location includes: sequentially designating each of the plurality of straight welds as a target straight weld; if the target straight weld is located at the stress-strain concentration location, obtaining the maximum thinning rate of the vicinity of the target straight weld, determining the arc-shaped weld to be replaced based on the maximum thinning rate of the vicinity of the target straight weld, wherein the larger the maximum thinning rate, the larger the radius of the arc-shaped weld to be replaced; and obtaining the weld replacement strategy based on the arc-shaped weld to be replaced for each of the partial straight welds.

[0010] In conjunction with the first aspect of the present invention, in some embodiments, after replacing some of the straight welds among the plurality of straight welds based on the weld replacement strategy, the third simulated double-door ring includes a plurality of arc-shaped welds, and the method further includes: obtaining the maximum thinning rate of the vicinity of each arc-shaped weld among the plurality of arc-shaped welds; determining an arc-shaped weld adjustment strategy based on the maximum thinning rate of the vicinity of each arc-shaped weld among the plurality of arc-shaped welds; and adjusting the plurality of arc-shaped welds of the third simulated double-door ring based on the arc-shaped weld adjustment strategy, so that the maximum thinning rate of the vicinity of each arc-shaped weld among the plurality of arc-shaped welds is within a preset thinning rate range.

[0011] In conjunction with the first aspect of the present invention, in some embodiments, controlling the actual production of the double-door ring based on the part information, the target coating strategy, and the hot stamping process parameters includes: controlling the actual production of the double-door ring based on the part information, the target coating strategy, the hot stamping process parameters, the weld replacement strategy, and the arc weld adjustment strategy.

[0012] Secondly, embodiments of the present invention provide a production control device for a double-door ring, comprising: an information acquisition unit, configured to acquire part information and determine a first simulated double-door ring based on the part information, wherein the part information includes the strength, shape, and thickness of each of a plurality of parts; a plating unit, configured to determine a target plating strategy for the first simulated double-door ring from a plurality of preset plating strategies, and obtain a second simulated double-door ring based on the target plating strategy and the first simulated double-door ring; a first simulation unit, configured to determine hot stamping process parameters based on the target plating strategy, and perform hot stamping simulation analysis on the second simulated double-door ring based on the hot stamping process parameters to obtain a third simulated double-door ring and a first simulation result; a second simulation unit, configured to perform collision simulation analysis on the third simulated double-door ring if the first simulation result meets a first preset requirement to obtain a second simulation result; and a production control unit, configured to control the actual production of the double-door ring based on the part information, the target plating strategy, and the hot stamping process parameters if the second simulation result meets a second preset requirement.

[0013] Thirdly, embodiments of the present invention provide an electronic device, including: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the method described in any of the first aspects.

[0014] The embodiments of the present invention provide one or more technical solutions that achieve at least the following technical effects or advantages:

[0015] This invention, through obtaining component information, determines a first simulated double-door ring based on the component information, which includes the strength, shape, and thickness of each component among multiple components. It then determines a target coating strategy for the first simulated double-door ring from a set of preset coating strategies, and obtains a second simulated double-door ring based on the target coating strategy and the first simulated double-door ring. Based on the target coating strategy, it determines hot stamping process parameters and performs hot stamping simulation analysis on the second simulated double-door ring based on these parameters to obtain a third simulated double-door ring and the first simulation result. If the first simulation result meets a first preset requirement, it performs collision simulation analysis on the third simulated double-door ring to obtain a second simulation result. If the second simulation result meets a second preset requirement, it controls the actual production of the double-door ring based on the component information, the target coating strategy, and the hot stamping process parameters. Since the part information, target coating strategy, and hot stamping process parameters are all determined under simulation conditions, if the first or second simulation results do not meet the preset requirements, the part information, target coating strategy, and hot stamping process parameters can be quickly updated again. This shortens the interval between the next double-door ring quality test, avoiding waiting until the double-door ring production is completed before conducting quality testing, and enabling more convenient quality testing of the double-door ring. Therefore, the production efficiency of the double-door ring is improved. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a flowchart of the production control method for the double-door ring in an embodiment of the present invention;

[0018] Figure 2 for Figure 1 A schematic diagram of the six parts of the first simulated double-door ring;

[0019] Figure 3 This is a schematic diagram of an arc-shaped weld in an embodiment of the present invention;

[0020] Figure 4 This is a functional block diagram of the production control device for the double-door ring in an embodiment of the present invention;

[0021] Figure 5 This is a schematic diagram of the structure of an electronic device in an embodiment of the present invention. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0023] In this invention, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Furthermore, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0024] This invention provides a production control method for a double-door ring, referencing... Figure 1 As shown, the method includes the following steps S101 to S105:

[0025] S101: Obtain part information and determine the first simulated double door ring based on the part information. The part information includes the strength, shape and thickness of each part among multiple parts.

[0026] Refer to Table 1 and Figure 2 As shown, multiple parts can refer to 5 parts, 6 parts, or 7 parts, etc. The following description uses 6 parts as an example. Table 1 shows the names, strengths, and thicknesses of the 6 parts. Figure 2 for Figure 1 A schematic diagram of the six parts of the first simulated double-door ring.

[0027] Table 1:

[0028] Figure 2 Corresponding serial number Part Name strength Thickness / mm 1 A-pillar reinforcement plate CR1200 / 2000HS+AS 1.3 2 A-pillar reinforcement plate CR1200 / 2000HS+AS 1.6 3 Side panel upper beam reinforcement plate CR950 / 1300HS+AS 1.2 4 B-pillar reinforcement plate CR1200 / 2000HS+AS 1.6 5 Threshold reinforcement plate 1000HS+AS 1.2 6 C-pillar reinforcement plate CR950 / 1300HS+AS 1.0

[0029] S102: Determine the target coating strategy for the first simulated dual-gate ring from a set of preset coating strategies, and obtain the second simulated dual-gate ring based on the target coating strategy and the first simulated dual-gate ring.

[0030] In some implementations, determining the target coating strategy for the first simulated double-gate ring from a set of preset coating strategies may include: obtaining multiple weights and multiple influencing factors for the first simulated double-gate ring, wherein the multiple weights correspond one-to-one with the multiple influencing factors, and the multiple influencing factors include price, oxidation resistance, and corrosion resistance; determining the evaluation score of each coating strategy among the multiple coating strategies based on the multiple influencing factors and multiple weights; and determining the target coating strategy based on the evaluation score of each coating strategy among the multiple coating strategies.

[0031] It should be noted that multiple coating strategies can include no coating, aluminum-silicon coating, and zinc-based coating. No coating is the cheapest option, aluminum-silicon coating offers the strongest oxidation resistance, and zinc-based coating provides the strongest corrosion resistance.

[0032] For example, suppose the influencing factors are price, oxidation resistance, and corrosion resistance. The price index without coating is 0.6, with aluminum-silicon coating it's 0.15, and with zinc-based coating it's 0.25. The oxidation resistance index without coating is 0.1, with aluminum-silicon coating it's 0.5, and with zinc-based coating it's 0.4. The corrosion resistance index without coating is 0.1, with aluminum-silicon coating it's 0.3, and with zinc-based coating it's 0.5. Furthermore, suppose the weight of price is 2, the weight of oxidation resistance is 2, and the weight of corrosion resistance is 6. Then, the evaluation score for without coating is 0.6×2 + 0.1×2 + 0.1×6 = 2. The evaluation score for with aluminum-silicon coating is 0.15×2 + 0.5×2 + 0.3×6 = 3.1. The evaluation score for adding a zinc-based coating is 0.25×2 + 0.4×2 + 0.5×6 = 4.3. Therefore, adding a zinc-based coating is chosen as the target coating strategy. It should be noted that in the example above, the weights are set as above because corrosion resistance is emphasized. If price is emphasized, the weights could be set as follows: price (7), oxidation resistance (1), and corrosion resistance (2).

[0033] It's important to note that different production requirements dictate varying levels of price, oxidation resistance, and corrosion resistance. Considering only a single influencing factor can lead to products failing to meet production demands. For instance, this double-door ring prioritizes corrosion resistance. While directly adding a zinc-based coating would achieve corrosion resistance, it might result in high costs. Adding an aluminum-silicon coating would be a better option if a balance between corrosion resistance and price is desired. Therefore, calculating evaluation scores allows for a better balance of different influencing factors, achieving a beneficial outcome that considers price, oxidation resistance, and corrosion resistance.

[0034] S103: Determine the hot stamping process parameters based on the target coating strategy, and perform hot stamping simulation analysis on the second simulated double-door ring based on the hot stamping process parameters to obtain the third simulated double-door ring and the first simulation results.

[0035] In some embodiments, the hot stamping process parameters include holding temperature and holding time. Determining the hot stamping process parameters based on the target coating strategy may include: if the target coating strategy is to add no coating, the holding temperature is 880–950°C and the holding time is 3–8 min; if the target coating strategy is to add an aluminum-silicon coating, the holding temperature is 880–950°C and the holding time is 4–8 min; if the target coating strategy is to add a zinc-based coating, the holding temperature is 880–910°C and the holding time is 4–6 min.

[0036] It should be noted that the parameters for the hot stamping process also include hot stamping speed, holding pressure, and holding time. When the target coating strategy is to add no coating, shot blasting is required after hot stamping; when the target coating strategy is to add an aluminum-silicon coating, shot blasting is not required after hot stamping.

[0037] In some embodiments, the third simulated double-door ring includes multiple straight welds, which are welds between multiple parts. After performing hot stamping simulation analysis on the second simulated double-door ring based on hot stamping process parameters, the method may further include: performing stress-strain simulation analysis on the third simulated double-door ring to obtain the stress-strain concentration locations of the third simulated double-door ring; determining a weld replacement strategy based on the stress-strain concentration locations; and replacing some of the straight welds among the multiple straight welds based on the weld replacement strategy, so that the welds of the third simulated double-door ring avoid the stress-strain concentration locations.

[0038] In some implementations, determining a weld replacement strategy based on the location of stress and strain concentration may include: sequentially designating each of a plurality of straight welds as a target straight weld; if the target straight weld is located at a stress and strain concentration location, obtaining the maximum thinning rate in the vicinity of the target straight weld; determining the arc-shaped weld to be replaced based on the maximum thinning rate in the vicinity of the target straight weld, wherein the larger the maximum thinning rate, the larger the radius of the arc-shaped weld to be replaced; and obtaining a weld replacement strategy based on the arc-shaped weld to be replaced for each of the straight welds in the plurality of straight welds.

[0039] It should be noted that stress and strain can cause fatigue cracks in objects and static load fractures in parts made of brittle materials. Therefore, stress and strain concentration points are more susceptible to damage. Thus, by replacing some of the straight welds in the multiple straight welds, the welds of the third simulated double-door ring are made to avoid stress and strain concentration points. This prevents these points from becoming more vulnerable due to the presence of welds, thereby ensuring the durability and safety of the double-door ring.

[0040] It should be noted that when using curved welds, the weld location, weld shape, and radius of the curved weld need to be determined, referring to... Figure 3 As shown, the shape of the arc-shaped weld mainly consists of a straight middle section and arc-shaped ends. The arc-shaped ends can be located at one or both ends of the straight middle section. Furthermore, the initial radius of the arc-shaped weld to be replaced can be set to 20 mm, with a range between 20 and 180 mm. The vicinity of the target straight weld can refer to the area within 5 mm of both sides of the weld.

[0041] In some embodiments, after replacing some of the straight welds among multiple straight welds based on a weld replacement strategy, the third simulated double-gate ring includes multiple arc-shaped welds. The method may further include: obtaining the maximum thinning rate of the vicinity of each arc-shaped weld among the multiple arc-shaped welds; determining an arc-shaped weld adjustment strategy based on the maximum thinning rate of the vicinity of each arc-shaped weld among the multiple arc-shaped welds; and adjusting the multiple arc-shaped welds of the third simulated double-gate ring based on the arc-shaped weld adjustment strategy so that the maximum thinning rate of the vicinity of each arc-shaped weld among the multiple arc-shaped welds is within a preset thinning rate range.

[0042] It should be noted that the maximum thinning rate in the vicinity of each arc-shaped weld is within the preset thinning rate range, which means that the absolute value t of the maximum thinning rate in the vicinity of each arc-shaped weld is less than 15%. The adjustment strategy for the arc-shaped weld can be referenced using the following formula:

[0043] R n+1 =R n +R';

[0044] Among them, R n R is the current radius of the arc weld. n+1 Let R' be the optimized radius of the arc weld, and t be the increase in radius of the arc weld. Let t be the absolute value of the maximum thinning rate in the vicinity of the arc weld. Then, when t ≥ 35%, R' = 15 mm; when 35% > t ≥ 30%, R' = 10 mm; when 30% > t ≥ 25%, R' = 5 mm; when 25% > t ≥ 20%, R' = 3 mm; when 20% > t ≥ 17%, R' = 2 mm; when 17% > t ≥ 15%, R' = 1 mm; when 15% > t, the adjustment stops, and the adjustment is considered complete.

[0045] It should be noted that the arc weld adjustment strategy reduces the maximum thinning rate in the vicinity of the arc weld by increasing the radius of the arc weld, thereby ensuring forming quality, improving the safety and durability of the double door ring, and thus improving the impact strength of the double door ring.

[0046] S104: If the first simulation result meets the first preset requirement, perform a collision simulation analysis on the third simulation double door ring to obtain the second simulation result.

[0047] It should be noted that the first preset requirement includes that the third simulated double door ring does not crack or wrinkle, and that the thinning rate of the third simulated double door ring is less than 15% and the thickening rate is less than 10%.

[0048] In some implementations, if the first simulation result does not meet the first preset requirement, the hot stamping process parameters are re-determined based on the target coating strategy. That is, the hot stamping process parameters are re-determined, and the hot stamping simulation analysis is performed again to ensure that the first simulation result meets the first preset requirement. Furthermore, if the optimized process parameters still fail to meet the first preset requirement, the local shape of the part is optimized until the first preset requirement is met.

[0049] S105: If the second simulation result meets the second preset requirement, control the actual production of the double door ring based on the part information, target coating strategy and hot stamping process parameters.

[0050] It should be noted that the second simulation results meet the second preset requirements, indicating that the third simulation double door ring has high strength and good collision performance.

[0051] In some implementations, controlling the actual production of double-door rings based on part information, target coating strategy, and hot stamping process parameters may include: controlling the actual production of double-door rings based on part information, target coating strategy, hot stamping process parameters, weld replacement strategy, and arc weld adjustment strategy.

[0052] In some implementations, if the second simulation result does not meet the second preset requirement, the process of acquiring part information is repeated. That is, step S101 is repeated to acquire part information again, update the strength, shape, and thickness of each part, update the weld position and number of welds, and perform simulation again to ensure that the second simulation result meets the second preset requirement.

[0053] It should be noted that in step S105, during the actual production process of the double-door ring based on part information, target plating strategy, and hot stamping process parameters, actual part stamping tests need to be conducted. This can include: First, blanking and welding of part sheets. Based on the shapes of each part that makes up the double-door ring, the sheet size is deduced in the software. Then, with the goal of maximizing sheet utilization, the part sheets are blanked. After blanking, the different sheets are welded according to the characteristics and features of the parts. Second, heat treatment. To ensure complete austenitization of the part substrate, heat treatment is required. The part sheet is transferred to a heating furnace, and heat treatment is performed according to the process parameters optimized by the simulation. In the heat treatment stage, the material is completely austenitized, which is beneficial to subsequent hot stamping forming and improved part performance. The third step is sheet metal transfer. After the heat-treated sheet metal is transferred from the heating furnace, it is gripped by a robotic arm and transferred to the hot stamping die. When the part material is selected as bare sheet (without coating) or aluminum-silicon coated hot-formed steel, the sheet metal is directly gripped onto the hot stamping die by the robotic arm. When the part material is selected as zinc-based coated hot-formed steel, the sheet metal is pre-cooled to below 782℃ after being transferred from the heating furnace and before being transferred to the hot stamping die. Typically, the initial forming temperature of the sheet metal is 720-760℃. The fourth step is stamping and holding pressure. After the sheet metal is transferred to the die, stamping is performed. During stamping, the stamping speed needs to be controlled. After stamping, the die is closed for holding pressure. At this time, the holding pressure parameters need to be set according to the size specifications of the part, including the holding pressure and holding time. This ensures that the cooling rate of the part in the die reaches more than 27℃ / s, while the part's exit temperature is below 200℃. The fifth step is shot blasting. If bare steel plates are used, shot blasting is performed after stamping. For zinc-based coated hot-formed steel, shot blasting is required if the OEM requires the removal of surface zinc oxide; otherwise, it is not necessary. Shot blasting is not required when using aluminum-silicon coated plates. This method allows for the production of double-door ring parts with varying performance characteristics. Furthermore, it allows for the fulfillment of the OEM's requirements regarding the economic efficiency, oxidation resistance, and corrosion resistance of double-door rings.

[0054] It should be noted that, to improve material utilization, a method for arc-shaped welds and a strategy for determining arc-shaped weld parameters were proposed for high-temperature formability. To improve the lightweighting level and crash performance of automobiles, the concept of door rings was proposed and applied. Through the design and application of door rings, several different parts can be hot-stamped into shape in one step. Currently, the single door ring design, i.e., the front single door ring of an automobile, is widely used. To further improve the lightweighting effect and production efficiency, this invention proposes a design and manufacturing strategy for double door rings. This invention can improve the crash performance of automobiles while simultaneously improving the lightweighting effect of parts. When using zinc-based coated hot-formed steel, it can also improve the corrosion resistance of the parts.

[0055] This invention, through obtaining component information, determines a first simulated double-door ring based on the component information, which includes the strength, shape, and thickness of each component among multiple components. It then determines a target coating strategy for the first simulated double-door ring from a set of preset coating strategies, and obtains a second simulated double-door ring based on the target coating strategy and the first simulated double-door ring. Based on the target coating strategy, it determines hot stamping process parameters and performs hot stamping simulation analysis on the second simulated double-door ring based on these parameters to obtain a third simulated double-door ring and the first simulation result. If the first simulation result meets a first preset requirement, it performs collision simulation analysis on the third simulated double-door ring to obtain a second simulation result. If the second simulation result meets a second preset requirement, it controls the actual production of the double-door ring based on the component information, the target coating strategy, and the hot stamping process parameters. Since the part information, target coating strategy, and hot stamping process parameters are all determined under simulation conditions, if the first or second simulation results do not meet the preset requirements, the part information, target coating strategy, and hot stamping process parameters can be quickly updated again. This shortens the interval between the next double-door ring quality test, avoiding waiting until the double-door ring production is completed before conducting quality testing, and enabling more convenient quality testing of the double-door ring. Therefore, the production efficiency of the double-door ring is improved.

[0056] Based on the same inventive concept, and referring to Figure 4As shown, this embodiment of the invention provides a production control device 10 for a double-door ring, comprising: an information acquisition unit 110, used to acquire part information and determine a first simulated double-door ring based on the part information, wherein the part information includes the strength, shape, and thickness of each of a plurality of parts; a plating unit 120, used to determine a target plating strategy for the first simulated double-door ring from a plurality of preset plating strategies, and obtain a second simulated double-door ring based on the target plating strategy and the first simulated double-door ring; a first simulation unit 130, used to determine hot stamping process parameters based on the target plating strategy, and perform hot stamping simulation analysis on the second simulated double-door ring based on the hot stamping process parameters to obtain a third simulated double-door ring and the first simulation result; a second simulation unit 140, used to perform collision simulation analysis on the third simulated double-door ring if the first simulation result meets a first preset requirement to obtain a second simulation result; and a production control unit 150, used to control the actual production of the double-door ring based on the part information, the target plating strategy, and the hot stamping process parameters if the second simulation result meets a second preset requirement.

[0057] It is understood that the coating unit 120 is specifically used for: obtaining multiple weights and multiple influencing factors for the first simulated double gate ring, with each weight corresponding to one of the influencing factors, including price, oxidation resistance, and corrosion resistance; determining the evaluation score of each coating strategy among the multiple coating strategies based on the multiple influencing factors and multiple weights; and determining the target coating strategy based on the evaluation score of each coating strategy among the multiple coating strategies.

[0058] Understandably, the parameters of the hot stamping process include holding temperature and holding time. The first simulation unit 130 includes: a parameter determination subunit, used for: if the target coating strategy is to not add a coating, the holding temperature is 880-950℃ and the holding time is 3-8 min; if the target coating strategy is to add an aluminum-silicon coating, the holding temperature is 880-950℃ and the holding time is 4-8 min; if the target coating strategy is to add a zinc-based coating, the holding temperature is 880-910℃ and the holding time is 4-6 min.

[0059] It is understandable that the production control device 10 with dual gate rings also includes: a return unit, used to re-execute the hot stamping process parameters determined based on the target coating strategy if the first simulation result does not meet the first preset requirement.

[0060] It is understood that the third simulated double-door ring includes multiple straight welds, which are welds between multiple parts. The production control device 10 for the double-door ring also includes a stress analysis unit, which includes: a position acquisition subunit, used to perform stress and strain simulation analysis on the third simulated double-door ring after performing hot stamping simulation analysis on the second simulated double-door ring based on hot stamping process parameters, so as to obtain the stress and strain concentration position of the third simulated double-door ring; and a replacement strategy determination subunit, used to determine the weld replacement strategy based on the stress and strain concentration position, and replace some of the straight welds among the multiple straight welds based on the weld replacement strategy, so that the welds of the third simulated double-door ring avoid the stress and strain concentration position.

[0061] Understandably, the replacement strategy determines the sub-units, specifically by: sequentially taking each straight weld in a plurality of straight welds as the target straight weld; if the target straight weld is located at a stress-strain concentration location, obtaining the maximum thinning rate in the vicinity of the target straight weld; determining the arc weld to be replaced based on the maximum thinning rate in the vicinity of the target straight weld, wherein the larger the maximum thinning rate, the larger the radius of the arc weld to be replaced; and obtaining the weld replacement strategy based on the arc weld to be replaced for each straight weld in a subset of straight welds.

[0062] Understandably, after replacing some of the straight welds in multiple straight welds based on the weld replacement strategy, the third simulated double-door ring includes multiple arc-shaped welds. The production control device 10 of the double-door ring also includes: a thinning rate acquisition unit, used to acquire the maximum thinning rate of the vicinity of each arc-shaped weld in the multiple arc-shaped welds; an adjustment strategy determination unit, used to determine the arc-shaped weld adjustment strategy based on the maximum thinning rate of the vicinity of each arc-shaped weld in the multiple arc-shaped welds; and an adjustment unit, used to adjust the multiple arc-shaped welds of the third simulated double-door ring based on the arc-shaped weld adjustment strategy, so that the maximum thinning rate of the vicinity of each arc-shaped weld in the multiple arc-shaped welds is within the preset thinning rate range.

[0063] Understandably, the production control unit 150 is specifically used to control the actual production of the double gate ring based on part information, target plating strategy, hot stamping process parameters, weld replacement strategy, and arc weld adjustment strategy.

[0064] It should be understood that further implementation details of the double-door ring production control device 10 in the embodiments of the present invention are as described in the aforementioned double-door ring production control method, and will not be repeated here for the sake of brevity.

[0065] Based on the same inventive concept, embodiments of the present invention also provide an electronic device, such as... Figure 5As shown, it includes a memory 504, a processor 502, and a computer program stored in the memory 504 and executable on the processor 502. The processor 502 executes the program to implement the steps described in any embodiment of the production control method for the double-door ring.

[0066] Among them, Figure 5 In this document, a bus architecture (represented by bus 500) is used. Bus 500 may include any number of interconnected buses and bridges, linking various circuits including one or more processors represented by processor 502 and memory represented by memory 504. Bus 500 may also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. Bus interface 505 provides an interface between bus 500 and receiver 501 and transmitter 503. Receiver 501 and transmitter 503 may be the same element, i.e., a transceiver, providing a unit for communicating with various other devices over a transmission medium. Processor 502 is responsible for managing bus 500 and general processing, while memory 504 can be used to store data used by processor 502 during operation.

[0067] The functions described herein can be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions can be stored as one or more instructions or codes on or transmitted via a computer-readable medium. Other examples and embodiments are within the scope and spirit of this invention and the appended claims. For example, due to the nature of software, the functions described above can be implemented using software executed by a processor, hardware, firmware, hardwired, or any combination thereof. Furthermore, the functional units can be integrated into a single processing unit, or each unit can exist physically separately, or two or more units can be integrated into a single unit.

[0068] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of units can be a logical functional division, and in actual implementation, there may be other division methods. For instance, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual coupling, direct coupling, or communication connection may be through some interfaces; the indirect coupling or communication connection between units or modules may be electrical or other forms.

[0069] The units described as separate components may or may not be physically separate. Similarly, the components of the control device may or may not be physical units; they may be located in one place or distributed across multiple units. Some or all of the units can be selected to achieve the purpose of this embodiment, depending on actual needs.

[0070] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, read-only memory (ROM), random access memory (RAM), portable hard drives, magnetic disks, or optical disks.

[0071] The above description is merely an embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of the claims of the present invention.

Claims

1. A production control method for double-door rings, characterized in that, include: Obtain part information and determine the first simulated double door ring based on the part information. The part information includes the strength, shape and thickness of each part among multiple parts. A target coating strategy for the first simulated dual-gate ring is determined from a plurality of preset coating strategies, and a second simulated dual-gate ring is obtained based on the target coating strategy and the first simulated dual-gate ring. Based on the target coating strategy, hot stamping process parameters are determined, and hot stamping simulation analysis is performed on the second simulated double-door ring based on the hot stamping process parameters to obtain the third simulated double-door ring and the first simulation result. If the first simulation result meets the first preset requirement, a collision simulation analysis is performed on the third simulated double door ring to obtain the second simulation result; If the second simulation result meets the second preset requirement, the actual production of the double door ring is controlled based on the part information, the target coating strategy and the hot stamping process parameters. The third simulated double-door ring includes multiple straight welds, which are welds between the multiple parts. After performing hot stamping simulation analysis on the second simulated double-door ring based on the hot stamping process parameters, the method further includes: performing stress-strain simulation analysis on the third simulated double-door ring to obtain the stress-strain concentration location of the third simulated double-door ring; determining a weld replacement strategy based on the stress-strain concentration location, and replacing some of the multiple straight welds based on the weld replacement strategy to make the welds of the third simulated double-door ring avoid the stress-strain concentration location; determining the weld replacement strategy based on the stress-strain concentration location includes: sequentially taking each of the multiple straight welds as a target straight weld; if the target straight weld is located at the stress-strain concentration location, obtaining the maximum stress concentration location in the vicinity of the target straight weld. The method further includes: determining the replacement arc weld based on the maximum thinning rate of the vicinity of the target straight weld, wherein a larger maximum thinning rate results in a larger radius of the replacement arc weld; obtaining the weld replacement strategy based on the replacement arc weld of each straight weld in the partial straight welds; after replacing some straight welds in the plurality of straight welds based on the weld replacement strategy, the third simulated double-door ring includes multiple arc welds, and the method further includes: obtaining the maximum thinning rate of the vicinity of each arc weld in the plurality of arc welds; determining an arc weld adjustment strategy based on the maximum thinning rate of the vicinity of each arc weld in the plurality of arc welds; and adjusting the multiple arc welds of the third simulated double-door ring based on the arc weld adjustment strategy so that the maximum thinning rate of the vicinity of each arc weld in the plurality of arc welds is within a preset thinning rate range.

2. The production control method for double-door rings according to claim 1, characterized in that, The step of determining the target coating strategy for the first simulated dual-gate ring from a set of preset coating strategies includes: For the first simulated double-gate ring, multiple weights and multiple influencing factors are obtained. The multiple weights correspond one-to-one with the multiple influencing factors, which include price, antioxidant capacity and corrosion resistance. Based on the multiple influencing factors and the multiple weights, the evaluation score of each of the multiple coating strategies is determined; The target coating strategy is determined based on the evaluation score of each of the multiple coating strategies.

3. The production control method for double-door rings according to claim 1, characterized in that, The hot stamping process parameters include holding temperature and holding time. Determining the hot stamping process parameters based on the target coating strategy includes: If the target coating strategy is to not add a coating, the heat preservation temperature is 880-950℃, and the heat preservation time is 3-8 minutes; If the target coating strategy is to add an aluminum-silicon coating, the heat preservation temperature is 880-950℃, and the heat preservation time is 4-8 minutes; If the target coating strategy is to add a zinc-based coating, the heat preservation temperature is 880–910°C, and the heat preservation time is 4–6 min.

4. The production control method for double-door rings according to claim 1, characterized in that, Also includes: If the first simulation result does not meet the first preset requirement, the hot stamping process parameters determined based on the target coating strategy are re-executed.

5. The production control method for double-door rings according to claim 1, characterized in that, The control of the actual production of the double-door ring based on the part information, the target coating strategy, and the hot stamping process parameters includes: Based on the part information, the target coating strategy, the hot stamping process parameters, the weld replacement strategy, and the arc weld adjustment strategy, the actual production of the double door ring is controlled.

6. A production control device for a double-door ring, characterized in that, include: An information acquisition unit is used to acquire part information and determine the first simulated double door ring based on the part information. The part information includes the strength, shape and thickness of each part among multiple parts. A coating unit is used to determine a target coating strategy for the first simulated dual-gate ring from a plurality of preset coating strategies, and to obtain a second simulated dual-gate ring based on the target coating strategy and the first simulated dual-gate ring. The first simulation unit is used to determine the hot stamping process parameters based on the target coating strategy, and to perform hot stamping simulation analysis on the second simulated double-door ring based on the hot stamping process parameters, so as to obtain the third simulated double-door ring and the first simulation result. The second simulation unit is used to perform collision simulation analysis on the third simulated double door ring if the first simulation result meets the first preset requirement, so as to obtain the second simulation result. A production control unit is configured to control the actual production of a double-door ring based on the part information, the target coating strategy, and the hot stamping process parameters, if the second simulation result meets the second preset requirements. The third simulated double-door ring includes multiple straight welds, which are welds between the multiple parts. After performing hot stamping simulation analysis on the second simulated double-door ring based on the hot stamping process parameters, the unit further includes: performing stress-strain simulation analysis on the third simulated double-door ring to obtain the stress-strain concentration locations; determining a weld replacement strategy based on the stress-strain concentration locations; and replacing some of the multiple straight welds based on the weld replacement strategy to ensure that the welds of the third simulated double-door ring avoid the stress-strain concentration locations. Determining the weld replacement strategy based on the stress-strain concentration locations includes: sequentially taking each of the multiple straight welds as a target straight weld; if the target... The straight weld is located at the stress-strain concentration point. The maximum thinning rate of the vicinity of the target straight weld is obtained. Based on the maximum thinning rate of the vicinity of the target straight weld, a replacement arc weld is determined, wherein the larger the maximum thinning rate, the larger the radius of the replacement arc weld. Based on the replacement arc weld of each straight weld in the partial straight welds, the weld replacement strategy is obtained. After replacing some straight welds in the plurality of straight welds based on the weld replacement strategy, the third simulated double-door ring includes a plurality of arc welds. The method further includes: obtaining the maximum thinning rate of the vicinity of each arc weld in the plurality of arc welds; determining an arc weld adjustment strategy based on the maximum thinning rate of the vicinity of each arc weld in the plurality of arc welds; and adjusting the plurality of arc welds in the third simulated double-door ring based on the arc weld adjustment strategy so that the maximum thinning rate of the vicinity of each arc weld in the plurality of arc welds is within a preset thinning rate range.

7. An electronic device, characterized in that, include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor, when executing the computer program, implements the method of any one of claims 1-5.

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