Production control method, device and equipment for double-door ring

Abstract

The invention discloses a double-door ring production control method, device and equipment, and the method comprises the steps: obtaining part information, and determining a first simulation double-door ring based on the part information; determining a target plating strategy for the first simulation double-door ring from a plurality of preset plating strategies, and obtaining a second simulation double-door ring based on the target plating strategy and the first simulation double-door ring; determining hot stamping process parameters based on the target coating strategy, and performing hot stamping simulation analysis on the second simulation double-door ring based on the hot stamping process parameters to obtain a third simulation double-door ring and a first simulation result; if the first simulation result meets a first preset requirement, carrying out collision simulation analysis on the third simulation double-door ring to obtain a second simulation result; and if the second simulation result meets the second preset requirement, 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 technical problem that the production efficiency of the double-door ring is low is solved.

Description

Technical Field

[0001] The invention belongs to the technical field of vehicle production, and in particular relates to a production control method, device and equipment for a double door ring. Background Art

[0002] The double door ring is the body frame of the vehicle. The production of the double door ring is an important part of the vehicle production. Its production efficiency determines the efficiency of vehicle production. In the production process of the double door ring, the double door ring products are mainly produced first, and then the double door ring products are tested for quality. If the test fails, the production parameters will be re-determined, and then re-produced according to the production parameters, resulting in low production efficiency of the double door ring, which in turn leads to low vehicle production efficiency, increases enterprise costs, and reduces enterprise competitiveness. Therefore, the low production efficiency of the double door ring is a technical problem that needs to be solved urgently. Summary of the invention

[0003] The embodiments of the present invention provide a production control method, device and equipment for a double door ring, which solve the technical problem of low production efficiency of the double door ring.

[0004] In a first aspect, an embodiment of the present invention provides 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, the part information including the strength, shape and thickness corresponding to each part of a plurality of parts; determining a target plating strategy for the first simulated double door ring from a plurality of preset plating strategies, and 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 the first preset requirement, performing a collision simulation analysis on the third simulated double door ring to obtain a second simulation result; if the second simulation result meets the 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 combination with the first aspect of the present invention, in some embodiments, determining the target plating strategy for the first simulated double door ring from a plurality of preset plating strategies includes: obtaining a plurality of weights and a plurality of influencing factors for the first simulated double door ring, the plurality of weights corresponding one-to-one to the plurality of influencing factors, the plurality of influencing factors including price, antioxidant capacity and corrosion resistance; determining an evaluation score of each plating strategy in the plurality of plating strategies based on the plurality of influencing factors and the plurality of weights; determining the target plating strategy based on the evaluation score of each plating strategy in the plurality of plating strategies.

[0006] In combination 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, and the hot stamping process parameters are determined based on the target coating strategy, including: if the target coating strategy is not to add coating, the holding temperature is 880-950°C, and the holding time is 3-8min; if the target coating strategy is to add aluminum-silicon coating, the holding temperature is 880-950°C, and the holding time is 4-8min; if the target coating strategy is to add zinc-based coating, the holding temperature is 880-910°C, and the holding time is 4-6min.

[0007] In combination with the first aspect of the present invention, in some implementations, it 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 combination with the first aspect of the present invention, in some embodiments, the third simulated double door ring includes a plurality of straight line welds, which are welds between the plurality of parts. After the hot stamping simulation analysis is performed on the second simulated double door ring based on the hot stamping process parameters, it also includes: performing a stress strain simulation analysis on the third simulated double door ring to obtain the stress and strain concentration position of the third simulated double door ring; determining a weld replacement strategy based on the stress and strain concentration position, and replacing some of the plurality of straight line 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.

[0009] In combination with the first aspect of the present invention, in some embodiments, the weld replacement strategy is determined based on the stress and strain concentration position, including: taking each of the multiple straight line welds as a target straight line weld in turn; if the target straight line weld is located at the stress and strain concentration position, obtaining the maximum thinning rate of the vicinity of the target straight line weld, and determining the arc weld to be replaced based on the maximum thinning rate of the vicinity of the target straight line weld, wherein the greater the maximum thinning rate, the greater the radius of the arc weld to be replaced; and obtaining the weld replacement strategy based on the arc weld to be replaced of each straight line weld in the partial straight line welds.

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

[0011] In combination with the first aspect of the present invention, in some embodiments, 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, including: 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] In a second aspect, an embodiment of the present invention provides a production control device for a double door ring, comprising: an information acquisition unit, 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 corresponding to each part of a plurality of parts; a coating unit, used to determine a target coating strategy for the first simulated double door ring from a plurality of preset coating strategies, and obtain a second simulated double door ring based on the target coating strategy and the first simulated double door ring; a first simulation unit, used to determine 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 a third simulated double door ring and a first simulation result; a second simulation unit, used to perform a collision simulation analysis on the third simulated double door ring to obtain a second simulation result if the first simulation result meets the first preset requirement; a production control unit, used to control the actual production of the 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 requirement.

[0013] In a third aspect, an embodiment of the present invention provides an electronic device, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements any one of the methods described in the first aspect when executing the computer program.

[0014] One or more technical solutions provided by the embodiments of the present invention achieve at least the following technical effects or advantages:

[0015] The embodiment of the present invention obtains part information, determines a first simulated double door ring based on the part information, and the part information includes the strength, shape and thickness corresponding to each part of a plurality of parts; determines a target plating strategy for the first simulated double door ring from a plurality of preset plating strategies, and obtains a second simulated double door ring based on the target plating strategy and the first simulated double door ring; determines hot stamping process parameters based on the target plating strategy, and performs 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 the first preset requirement, performs a collision simulation analysis on the third simulated double door ring to obtain a second simulation result; if the second simulation result meets the second preset requirement, controls the actual production of the double door ring based on the part information, the target plating 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, when the first simulation result or the second simulation result does not meet the preset requirements, the part information, target coating strategy and hot stamping process parameters can be quickly updated again to shorten the interval time for the next double door ring quality test, avoiding waiting for the double door ring production to be completed before quality testing, and making it more convenient to perform quality testing on the double door ring. Therefore, the production efficiency of the double door ring is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 is a flow chart of a production control method for a 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 knocker;

[0019] Figure 3 Schematic diagram of an arc weld in an embodiment of the present invention;

[0020] Figure 4 It is a functional module diagram of the production control device of the double door ring in the embodiment of the present invention;

[0021] Figure 5 Schematic diagram of the structure of an electronic device in an embodiment of the present invention. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] In the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0024] The embodiment of the present invention provides a production control method for a double door ring, referring to Figure 1 As shown, the method includes the following steps S101 to S105:

[0025] S101: Acquire part information, and determine a first simulated double door knocker based on the part information, wherein the part information includes strength, shape, and thickness corresponding to each of a plurality of parts.

[0026] Refer to Table 1 and Figure 2 As shown, the multiple parts may refer to 5 parts, 6 parts or 7 parts, etc. The following description is based on 6 parts. Table 1 shows the names, strengths and thicknesses of the 6 parts. Figure 2 for Figure 1 Schematic diagram of the six parts of the first simulated double door knocker.

[0027] Table 1:

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

[0029] S102: 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.

[0030] In some embodiments, determining a target plating strategy for a first simulated double door ring from a plurality of preset plating strategies may include: obtaining a plurality of weights and a plurality of influencing factors for the first simulated double door ring, the plurality of weights corresponding one-to-one to the plurality of influencing factors, the plurality of influencing factors including price, antioxidant capacity, and corrosion resistance; determining an evaluation score for each of the plurality of plating strategies based on the plurality of influencing factors and the plurality of weights; determining a target plating strategy based on the evaluation score of each of the plurality of plating strategies.

[0031] It should be noted that the multiple coating strategies may include no coating, aluminum silicon coating, and zinc-based coating. The price is lowest when no coating is added, the oxidation resistance is the strongest when aluminum silicon coating is added, and the corrosion resistance is the strongest when zinc-based coating is added.

[0032] For example, assuming that the multiple influencing factors are price, antioxidant capacity and corrosion resistance, the price index of no added coating is 0.6, the price index of added aluminum silicon coating is 0.15, the price index of added zinc-based coating is 0.25, the antioxidant capacity index of no added coating is 0.1, the antioxidant capacity index of added aluminum silicon coating is 0.5, the antioxidant capacity index of added zinc-based coating is 0.4, the corrosion resistance index of no added coating is 0.1, the corrosion resistance index of added aluminum silicon coating is 0.3, the corrosion resistance index of added zinc-based coating is 0.5, and assuming that the price weight corresponding to the price in the multiple weights is 2, the antioxidant weight corresponding to the antioxidant capacity is 2, and the corrosion resistance weight corresponding to the corrosion resistance is 6. Then, the evaluation score of no added coating is 0.6×2+0.1×2+0.1×6=2. The evaluation score of added aluminum silicon coating is 0.15×2+0.5×2+0.3×6=3.1. The evaluation score of adding zinc-based coating is 0.25×2+0.4×2+0.5×6=4.3. Therefore, adding zinc-based coating is used as the target coating strategy. It should be noted that in the above example, since corrosion resistance is important, the weights are set as above. If price is important, the weights can also be 7 for price, 1 for antioxidant capacity, and 2 for corrosion resistance.

[0033] It should be noted that the price, antioxidant capacity and corrosion resistance required by different production requirements are different. If only a single influencing factor is considered, the product will not meet the production requirements. For example, the double door knocker attaches great importance to corrosion resistance. If the zinc-based coating is directly added as the target coating strategy, although corrosion resistance is achieved, it may lead to high costs. If you want to take into account both corrosion resistance and price, adding aluminum silicon coating is also a good choice. Therefore, by calculating the evaluation score, we can better balance the different influencing factors and achieve the beneficial effect of taking into account price, antioxidant capacity and corrosion resistance.

[0034] S103: Determine 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 a third simulated double door ring and the first simulation result.

[0035] In some embodiments, the parameter types of the hot stamping process parameters include a holding temperature and a holding time. The hot stamping process parameters are determined based on the target coating strategy, which may include: if the target coating strategy is not to add a coating, the holding temperature is 880 to 950°C, and the holding time is 3 to 8 minutes; if the target coating strategy is to add an aluminum silicon coating, the holding temperature is 880 to 950°C, and the holding time is 4 to 8 minutes; if the target coating strategy is to add a zinc-based coating, the holding temperature is 880 to 910°C, and the holding time is 4 to 6 minutes.

[0036] It should be noted that the parameter types of hot stamping process parameters also include hot stamping speed, holding pressure and holding time. When the target coating strategy is not to add coating, shot blasting is required after hot stamping. When the target coating strategy is to add 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 the hot stamping process parameters, it can also include: performing stress-strain simulation analysis on the third simulated double door ring to obtain the stress and strain concentration position of the third simulated double door ring; determining a weld replacement strategy based on the stress and strain concentration position, 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 and strain concentration position.

[0038] In some embodiments, determining a weld replacement strategy based on a stress and strain concentration position may include: taking each of a plurality of linear welds as a target linear weld in turn; if the target linear weld is located at a stress and strain concentration position, obtaining a maximum thinning rate of an area near the target linear weld, and determining an arc weld to be replaced based on the maximum thinning rate of the area near the target linear weld, wherein a greater the maximum thinning rate, a greater the radius of the arc weld to be replaced; and obtaining a weld replacement strategy based on the arc weld to be replaced of each linear weld in the partial linear welds.

[0039] It should be noted that stress and strain can cause fatigue cracks in objects and can also cause static load fractures in parts made of brittle materials, so the location where stress and strain are concentrated is more susceptible to damage. Therefore, some of the multiple linear welds are replaced so that the welds of the third simulated double door ring avoid the location where stress and strain are concentrated, thus avoiding the location where stress and strain are concentrated from becoming more fragile due to the presence of the welds, thereby ensuring the durability and safety of the double door ring.

[0040] It should be noted that when using arc welds, it is necessary to determine the weld position, weld shape and arc weld radius of the arc weld. Figure 3 As shown, the shape of the arc weld is mainly composed of a middle straight line and an end arc, wherein the end arc can be located at one end or both ends of the middle straight line. In addition, the initial value of the radius of the arc weld to be replaced can be set to 20 mm, and the range can be between 20-180 mm. The vicinity of the target straight weld can refer to the area within 5 mm from both sides of the weld.

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

[0042] It should be noted that the maximum thinning rate of the vicinity of each arc weld is within the preset thinning rate range, which may mean that the absolute value t of the maximum thinning rate of the vicinity of each arc weld is less than 15%. The arc weld adjustment strategy can refer to the following formula:

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

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

[0045] It should be noted that the arc weld adjustment strategy increases the radius of the arc weld to reduce the maximum thinning rate of the area near the arc weld, thereby ensuring the forming quality, improving the safety and durability of the double door ring, and thus improving the collision strength of the double door ring.

[0046] S104: 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 a 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 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 embodiments, if the first simulation result does not meet the first preset requirement, the hot stamping process parameters are determined based on the target coating strategy again. That is, the hot stamping process parameters are re-determined, and the hot stamping simulation analysis is performed again so that the first simulation result meets the first preset requirement. In addition, when the process parameters are optimized but still cannot meet the first preset requirement, the local shape of the part is optimized until the first preset requirement can be met.

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

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

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

[0052] In some embodiments, if the second simulation result does not meet the second preset requirement, the step of obtaining part information is performed again, that is, step S101 is performed again, part information is obtained again, the strength, shape and thickness corresponding to each part are updated, and the weld position and weld quantity are updated, and simulation is performed again so that the second simulation result meets the second preset requirement.

[0053] It should be noted that in step S105, in the process of controlling the actual production of the double door ring based on the part information, the target coating strategy and the hot stamping process parameters, it is necessary to conduct a stamping test of the actual parts, which may include: the first step, blanking and welding of part sheets, according to the shapes of the various parts that make up the double door ring, the sheet size is inferred in the software, and then the blanking of the part sheets is carried out with the goal of maximizing the sheet utilization rate. After blanking, different sheets are welded according to the characteristics and features of the parts. The second step is heat preservation and heat treatment. In order to ensure that the part substrate is completely austenitized, heat preservation and heat treatment are required. The part sheet is transferred to the heating furnace and heat preservation and heat treatment are carried out according to the process parameters optimized by the above simulation. In the heat treatment link, the material is completely austenitized, which is conducive to the subsequent hot stamping forming and part performance improvement. The third step is sheet transfer. After the heat-treated sheet is transferred out of the heating furnace, it is clamped by a manipulator and transferred to the hot stamping die. When the part material is a bare plate (without adding coating) and aluminum-silicon coated hot-formed steel, the sheet is clamped directly to the hot stamping die by the manipulator. When the part material is zinc-based coated hot-formed steel, after the sheet is transferred out of the heating furnace, before it is transferred to the hot stamping die, the temperature of the sheet is reduced to below 782°C by pre-cooling. Usually, the initial forming temperature of the sheet is 720-760°C. The fourth step is stamping and holding. After the sheet is transferred to the die, stamping is performed. During stamping, the stamping speed needs to be controlled. After stamping, the mold is closed for holding. At this time, the holding parameters need to be set according to the size specifications of the part, including the holding pressure and the holding time. As a result, the cooling rate of the part in the mold reaches more than 27°C / s, and the die exit temperature of the part is lower than 200°C. The fifth step is shot blasting. If a bare plate is used, it is shot blasted after stamping. For zinc-based coated hot-formed steel, shot blasting is also required when the OEM requires the removal of surface zinc oxide. If there is no such requirement, shot blasting is not required. When aluminum-silicon coated plates are used, shot blasting is not required. Through this method, double door ring parts with different performances can be obtained. At the same time, the economic, oxidation resistance and corrosion resistance requirements of the double door ring can be met according to the needs of the OEM.

[0054] It should be noted that in order to improve material utilization and high temperature formability, a method for arc welding and a strategy for formulating arc welding parameters are proposed. In order to improve the lightweight level of automobiles and improve collision performance, the concept of door rings is proposed and applied. Through the design and application of door rings, several different parts can be hot stamped at one time. At present, the most widely used design is the single door ring, that is, the single door ring on the front of the car. In order to further improve the lightweight effect and production efficiency, the embodiment of the present invention proposes a design and manufacturing strategy method for double door rings. The embodiment of the present invention can improve the collision performance of the automobile, while improving the lightweight effect of the parts. When zinc-based coated hot-formed steel is used, the corrosion resistance of the parts can also be improved.

[0055] The embodiment of the present invention obtains part information, determines a first simulated double door ring based on the part information, and the part information includes the strength, shape and thickness corresponding to each part of a plurality of parts; determines a target plating strategy for the first simulated double door ring from a plurality of preset plating strategies, and obtains a second simulated double door ring based on the target plating strategy and the first simulated double door ring; determines hot stamping process parameters based on the target plating strategy, and performs 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 the first preset requirement, performs a collision simulation analysis on the third simulated double door ring to obtain a second simulation result; if the second simulation result meets the second preset requirement, controls the actual production of the double door ring based on the part information, the target plating 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, when the first simulation result or the second simulation result does not meet the preset requirements, the part information, target coating strategy and hot stamping process parameters can be quickly updated again to shorten the interval time for the next double door ring quality test, avoiding waiting for the double door ring production to be completed before quality testing, and making it more convenient to perform quality testing on the double door ring. Therefore, the production efficiency of the double door ring is improved.

[0056] Based on the same inventive concept, Figure 4As shown, an embodiment of the present invention provides a production control device 10 for a double door ring, including: 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 corresponding to each part of a plurality of parts; a coating unit 120, used to determine a target coating strategy for the first simulated double door ring from a plurality of preset coating strategies, and obtain a second simulated double door ring based on the target coating strategy and the first simulated double door ring; a first simulation unit 130, used to determine 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 a third simulated double door ring and a first simulation result; a second simulation unit 140, used to perform collision simulation analysis on the third simulated double door ring to obtain a second simulation result if the first simulation result meets the first preset requirement; a production control unit 150, used to control the actual production of the 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 requirement.

[0057] It can be understood that the coating unit 120 is specifically used to: obtain multiple weights and multiple influencing factors for the first simulated double door ring, the multiple weights correspond one-to-one to the multiple influencing factors, and the multiple influencing factors include price, antioxidant ability and corrosion resistance; determine the evaluation score of each coating strategy among the multiple coating strategies based on the multiple influencing factors and the multiple weights; determine the target coating strategy based on the evaluation score of each coating strategy among the multiple coating strategies.

[0058] It can be understood that the parameter types of the hot stamping process parameters include insulation temperature and insulation time. The first simulation unit 130 includes: a parameter determination subunit, which is used to determine that if the target coating strategy is not to add coating, the insulation temperature is 880-950°C, and the insulation time is 3-8min; if the target coating strategy is to add aluminum silicon coating, the insulation temperature is 880-950°C, and the insulation time is 4-8min; if the target coating strategy is to add zinc-based coating, the insulation temperature is 880-910°C, and the insulation time is 4-6min.

[0059] It can be understood that the production control device 10 for the double door ring further includes: a return unit, which is used to re-execute the determination of hot stamping process parameters based on the target coating strategy if the first simulation result does not meet the first preset requirement.

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

[0061] It can be understood that the replacement strategy determination subunit is specifically used to: take each of the multiple straight line welds as the target straight line weld in turn; if the target straight line weld is located at a stress and strain concentration position, obtain the maximum thinning rate of the vicinity of the target straight line weld, and determine the arc weld to be replaced based on the maximum thinning rate of the vicinity of the target straight line weld, wherein the greater the maximum thinning rate, the greater the radius of the arc weld to be replaced; and obtain a weld replacement strategy based on the arc weld to be replaced of each straight line weld in the partial straight line welds.

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

[0063] It can be understood that the production control unit 150 is specifically used to control the actual production of the double door ring based on part information, target coating strategy, hot stamping process parameters, weld replacement strategy and arc weld adjustment strategy.

[0064] It should be understood that more implementation details of the production control device 10 for the double door ring in the embodiment of the present invention refer to the production control method for the double door ring described above, and for the sake of brevity of the specification, they will not be repeated here.

[0065] Based on the same inventive concept, an embodiment of the present invention further provides 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 implementation of the dual door ring production control method embodiment.

[0066] Among them, Figure 5 In the embodiment of the present invention, a bus architecture (represented by bus 500) is shown, which may include any number of interconnected buses and bridges, and bus 500 links 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 peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described 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, namely 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 may be used to store data used by processor 502 when performing operations.

[0067] The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored as one or more instructions or codes on a computer-readable medium or transmitted via a computer-readable medium. Other examples and implementations are within the scope and spirit of the present invention and the appended claims. For example, due to the nature of software, the functions described above may be implemented using software executed by a processor, hardware, firmware, hard wiring, or a combination of any of these. In addition, each functional unit may be integrated into a processing unit, each unit may exist physically separately, or two or more units may be integrated into one 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. Among them, the device embodiments described above are only schematic. For example, the division of the units can be a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0069] The units described as separate components may or may not be physically separated, and the components of the control device may or may not be physical units, that is, they may be located in one place or distributed in multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0070] If the integrated unit is implemented in the form of 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, and the computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk and other media that can store program codes.

[0071] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A production control method for a double door ring, characterized in that: include: Acquire part information, and determine a first simulated double door knocker based on the part information, wherein the part information includes strength, shape, and thickness corresponding to each of the plurality of parts; 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; Determining hot stamping process parameters based on the target coating 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 the first preset requirement, performing a collision simulation analysis on the third simulated double door ring to obtain a 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 plating strategy and the hot stamping process parameters.

2. The production control method of double door ring according to claim 1, characterized in that: The step of determining a target plating strategy for the first simulated double door ring from a plurality of preset plating strategies includes: For the first simulated double door ring, a plurality of weights and a plurality of influencing factors are obtained, wherein the plurality of weights correspond to the plurality of influencing factors one by one, and the plurality of influencing factors include price, antioxidant capacity, and corrosion resistance; Determining an evaluation score of each of the plurality of coating strategies based on the plurality of influencing factors and the plurality of weights; The target plating strategy is determined based on the evaluation score of each plating strategy in the plurality of plating strategies.

3. The production control method of double door ring according to claim 1, characterized in that: The parameter types of the hot stamping process parameters include holding temperature and holding time. The hot stamping process parameters are determined based on the target coating strategy, including: If the target coating strategy is not to add 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 minutes; If the target coating strategy is to add a zinc-based coating, the insulation temperature is 880-910° C., and the insulation time is 4-6 minutes.

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

5. The production control method of double door ring according to claim 1, characterized in that: The third simulated double door ring includes a plurality of straight welds, which are welds between the plurality of parts. After the hot stamping simulation analysis is performed 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 position of the third simulated double door ring; A weld replacement strategy is determined based on the stress and strain concentration position, and part of the plurality of linear welds is replaced based on the weld replacement strategy so that the welds of the third simulated double door ring avoid the stress and strain concentration position.

6. The production control method of double door ring according to claim 5, characterized in that: The step of determining a weld replacement strategy based on the stress and strain concentration position includes: sequentially taking each of the plurality of linear welds as a target linear weld; If the target straight weld is located at the stress and strain concentration position, the maximum thinning rate of the vicinity of the target straight weld is obtained, and the arc weld to be replaced is determined based on the maximum thinning rate of the vicinity of the target straight weld, wherein the greater the maximum thinning rate, the greater the radius of the arc weld to be replaced; The weld replacement strategy is obtained based on the arc weld to be replaced of each linear weld in the partial linear welds.

7. The production control method of double door ring according to claim 6, characterized in that: After replacing some of the plurality of straight welds based on the weld replacement strategy, the third simulated double door ring includes a plurality of arc welds, and the method further includes: Obtaining a maximum thinning rate of a vicinity of each arc weld among the plurality of arc welds; Determining an arc weld adjustment strategy based on a maximum thinning rate of a vicinity of each arc weld among the plurality of arc welds; Based on the arc weld adjustment strategy, the multiple arc welds of the third simulated double door ring are adjusted so that the maximum thinning rate of the vicinity of each arc weld in the multiple arc welds is within a preset thinning rate range.

8. The production control method of double door ring according to claim 7, characterized in that: 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, including: 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.

9. A production control device for a double door ring, characterized in that: include: An information acquisition unit, configured to acquire part information, and determine a first simulated double door knocker based on the part information, wherein the part information includes strength, shape, and thickness corresponding to each of the plurality of parts; A coating unit, configured to determine a target coating strategy for the first simulated double door ring from a plurality of preset coating strategies, and obtain a second simulated double door ring based on the target coating strategy and the first simulated double door ring; a first simulation unit, configured to determine 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 a third simulated double door ring and the first simulation result; A second simulation unit, configured to perform a collision simulation analysis on the third simulated double door ring to obtain a second simulation result if the first simulation result meets a first preset requirement; A production control unit is used to control the actual production of the 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 requirement.

10. 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 implements the method according to any one of claims 1 to 8 when executing the computer program.

Images