CN111687269A - Rear door outer plate stamping process method and automobile rear door outer plate - Google Patents
Rear door outer plate stamping process method and automobile rear door outer plate Download PDFInfo
- Publication number
- CN111687269A CN111687269A CN202010520978.6A CN202010520978A CN111687269A CN 111687269 A CN111687269 A CN 111687269A CN 202010520978 A CN202010520978 A CN 202010520978A CN 111687269 A CN111687269 A CN 111687269A
- Authority
- CN
- China
- Prior art keywords
- area
- rear door
- outer plate
- model
- door outer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/88—Making other particular articles other parts for vehicles, e.g. cowlings, mudguards
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J5/00—Doors
- B60J5/04—Doors arranged at the vehicle sides
Abstract
The invention relates to a rear door outer plate stamping process method and an automobile rear door outer plate. The stamping process method of the outer plate of the rear vehicle door comprises the following steps: analyzing the punched original product model to obtain an easily deformable area after the original product model is produced; carrying out reverse adjustment on the process treatment on the easily-deformed area to obtain a new product model of the outer plate of the rear vehicle door; and according to the obtained new product model, carrying out stamping process treatment on the blank, and forming to obtain the outer plate of the rear vehicle door. The invention aims to solve the problem that the quality of the surface A of the outer plate of the rear door of an automobile is difficult to ensure due to the fact that the outer plate of the rear door of the automobile is directly processed according to the product shape and is difficult to process and adjust by a mould in the later period in the prior art.
Description
Technical Field
The invention relates to the technical field of vehicle body forming, in particular to a rear vehicle door outer plate stamping process method and an automobile rear vehicle door outer plate.
Background
Under the circumstance that the market competition of automobiles in the environment is more and more severe, the automobile products are more and more updated, the style and the shape are more and more novel, the automobile outer covering piece is used as a direct visual part for consumers, and the quality of the automobile outer covering piece directly influences the quality of the whole automobile. Therefore, the high-quality and short-period development of the automobile body outer cover can more quickly and directly convey the modeling intention of a new automobile type to a consumer, and the quality of the production process of the automobile rear door outer plate serving as one type of the outer cover directly influences the appearance quality of the automobile body. However, in the manufacturing of the rear door outer panel at present, a process scheme of directly manufacturing a product according to the product shape is generally adopted, but after the product is produced by stamping, the A surface is often deformed, so that the processing period of a die and the die exchanging period are long, and the full-character shape is difficult to achieve through die processing and adjustment, the production and debugging of the automobile rear door outer panel are more complicated due to the irregular appearance shape of a rear wheel area, and the quality assurance of the A surface of the automobile rear door outer panel is always a key concern.
Disclosure of Invention
Based on the technical scheme, the invention provides a rear door outer plate stamping process method and an automobile rear door outer plate, and aims to solve the problem that the quality of the surface A of the rear door outer plate is difficult to ensure due to the fact that the automobile rear door outer plate is directly processed according to the product shape and is difficult to process and adjust by a mold in the later period in the traditional technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a rear door outer plate stamping process method comprises the following steps:
analyzing the punched original product model to obtain an easily deformable area after the original product model is produced;
carrying out reverse adjustment on the process treatment on the easily-deformed area to obtain a new product model of the outer plate of the rear vehicle door;
and according to the obtained new product model, carrying out stamping process treatment on the blank, and forming to obtain the outer plate of the rear vehicle door.
Optionally, the step of "performing process reverse adjustment on the deformable region" includes the steps of:
firstly, adjusting the molded surface of the easily-deformed area from the last processing procedure;
then, adjusting the molded surface of the easily-deformed region in a penultimate processing procedure;
and the rest is repeated until the profile of the easily-deformed region is adjusted in the first machining procedure.
Optionally, the step of "analyzing the punched original product model to obtain the easily deformable region after the original product model is produced" includes the following steps:
analyzing the punched original product model, and identifying an easily deformable region and an difficultly deformable region on the surface A model of the original product model after production;
and analyzing the curvature radius of each section line forming the surface A molding to obtain curvature data of a plurality of sections of connecting lines of the section lines.
Optionally, the step of "performing process reverse adjustment on the deformable region" includes the steps of:
taking the non-deformable area on the A-surface model as an adjustment reference;
and performing regular reverse adjustment on the molded surface of the easy-to-deform area according to the acquired curvature data of the easy-to-deform area and the section line on the A-surface molding and the adjustment reference.
Optionally, the step of "regularly adjusting the profile of the deformable zone in the reverse direction" comprises the steps of:
setting the part of the section line on the molded surface of the easy-deformation area, of which the curvature radius value is smaller than or equal to a preset curvature radius value, as a non-adjustable area, and setting the part of the section line on the molded surface of the easy-deformation area, of which the curvature radius value is larger than the preset curvature radius value, as an adjustable area;
keeping the curvature radius of the section line of the non-adjustable region unchanged, and adjusting the curvature radius of the section line positioned in the adjustable region to enable the adjustment direction to be opposite to the deformation direction of the easily-deformable region;
and respectively carrying out adjustment structure on the connecting lines of the section lines at a plurality of positions of the adjustable area according to the transverse shape change of the A-surface modeling, so that the A-surface modeling reconstruction is carried out after the plurality of section lines of the adjustment structure form grids.
Optionally, after the step of "adjusting the profile of the easily deformable region until the first machining process is completed", the method comprises the following steps:
and performing process supplement setting on the A-surface model adjusted by the first processing procedure, and forming a profile strengthening feature at the splicing position of the middle part of the A-surface model.
Optionally, the step of forming a profile strengthening feature at a central splicing position of the a-face molding comprises the steps of:
a triangular convex feature is formed at the splicing position of the middle part of the A-surface model, trapezoidal sunken groove features are formed at the waist lines on two sides of the triangular convex feature respectively, and the triangular convex feature and the trapezoidal sunken groove features form the profile reinforcing feature.
Optionally, after the step of forming the profile reinforcing feature at the splicing position of the middle part of the a-surface modeling, the method comprises the following steps:
the A-surface model is provided with a rear wheel characteristic area, and the rear wheel characteristic area is provided with a reverse radian model opposite to the radian of the rear wheel.
Optionally, after the step of forming the profile reinforcing feature at the splicing position of the middle part of the a-surface modeling, the method comprises the following steps:
and arranging an upper die bottom condition inspection plane in the rear wheel characteristic area, wherein the upper die bottom condition inspection plane forms an inspection benchmark during die debugging and production.
In addition, the invention also provides an automobile rear door outer plate which is processed and manufactured by the stamping process method of the rear door outer plate.
According to the technical scheme provided by the invention, before the outer plate of the automobile rear door is processed and manufactured, the easily deformable area of the original process product model is identified and reversely adjusted in the process design stage, so that the deformation condition of the original process product model can be gradually corrected to obtain an adjusted new process product model capable of improving the deformation condition. When the outer plate of the automobile rear door is processed according to the adjusted new technical product model, the deformation of the A surface of the molded surface can be controlled and improved, and the subsequent processing and adjustment of the molded product are not needed to be carried out by adopting a mold or more complex molds, so that the mold processing period and the mold exchanging period are reduced, and the quality of the A surface of the product is ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic flow chart of the steps of the stamping process for the outer panel of the rear door of the present invention;
FIG. 2 is a schematic diagram of a front view of a prototype model according to the present invention;
FIG. 3 is a schematic front view of the prototype model (identifying areas that are easily deformable and areas that are not easily deformable) according to the present invention;
FIG. 4 is a schematic structural view of a section line of the longitudinal section D-D of FIG. 2;
FIG. 5 is a schematic structural diagram of cross-sectional lines of the prototype model before and after reverse adjustment according to the present invention;
FIG. 6 is a partial enlarged view of the portion 100 of FIG. 5;
FIG. 7 is a partial enlarged structural view of a portion 200 of FIG. 5;
FIG. 8 is a schematic structural diagram of the raw product model of the present invention being adjusted and shaped during the first processing step;
fig. 9 is a partial enlarged structural view of a portion 300 of fig. 8;
FIG. 10 is a structural schematic diagram of a cross-section of the transverse section E-E of FIG. 9;
fig. 11 is a partially enlarged schematic view of a portion 400 of fig. 8.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, back, top and bottom … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
In the conventional technology, when the back door outer plate is manufactured, the technical scheme that the product is directly manufactured according to the product shape is generally adopted, but the deformation of the surface A often occurs after the product is punched and produced, so that the mold processing period and the mold exchanging period are both long, and the full-character shape is difficult to achieve through mold processing and adjustment, and the production and debugging of the automobile back door outer plate are more complicated due to the irregular appearance shape of a rear wheel area, and the quality assurance of the surface A outside the automobile back door outer plate is always a key concern. In order to solve the problems, the invention provides a rear door outer plate stamping process method and an automobile rear door outer plate.
As shown in fig. 1, the stamping process of the outer panel of the rear door provided by the invention comprises the following steps:
step S100, analyzing a punched original product model (shown in figure 2) to obtain an easily-deformed area after the original product model is produced;
s200, carrying out reverse adjustment on the process treatment on the easily-deformed area to obtain a new product model of the outer plate of the rear vehicle door;
and S300, according to the obtained new product model, carrying out stamping process treatment on the blank, and forming to obtain the outer plate of the rear vehicle door.
Before the outer plate of the automobile rear door is processed and manufactured, the easily deformable area of the original process product model is identified and reversely adjusted in the process design stage, and the deformation condition of the original process product model can be gradually corrected to obtain an adjusted new process product model capable of improving the deformation condition. When the automobile rear door outer plate is processed according to the new product model obtained after adjustment, the deformation of the A surface of the molded surface can be controlled and improved, and the subsequent processing and adjustment of the molded product are not required to be carried out by adopting a mold or more complex molds, so that the mold processing period and the mold exchanging period are reduced, the production debugging difficulty is reduced, and the quality of the A surface of the product is ensured.
In step S200, the step of "performing a process reverse adjustment on the easily deformable region" includes the steps of:
firstly, adjusting the molded surface of the easily-deformed area from the last processing procedure;
then, adjusting the molded surface of the easily-deformed region in a penultimate processing procedure;
and the rest is repeated until the profile of the easily-deformed region is adjusted in the first machining procedure.
Conventionally, when a product is processed from an original product model, the processing technique used for the processing includes a first processing step, a second processing step, a once-through processing step, a last processing step, and the processing steps are sequentially performed to obtain the product, and there is a possibility that deformation may occur in an easily deformable region of the product in any of the processing steps. The invention can adopt a reverse adjustment processing method, in the process design stage, the molded surface of the easy deformation area is reversely adjusted, the adjustment processing is carried out from the molded surface processed by the last processing procedure, then the molded surface processed by the penultimate processing procedure is adjusted, and the like, until the molded surface processed by the first processing procedure is adjusted, each processing procedure can be adjusted in the easy deformation area of the molded surface, thereby reducing or eliminating the deformation of the finally obtained molded surface. Therefore, after the product is actually produced, the deformation of the product is not required to be corrected and shaped in a large quantity through the die, the shaping quantity is reduced, the number of the die is reduced, and the complexity of the die is reduced.
In addition, in step S100, the step of analyzing the punched original product model to obtain the easily deformable region after the original product model is produced includes the steps of:
analyzing the punched original product model, and identifying an easily deformable region and an difficultly deformable region on the A-surface modeling of the original product model. The processing stress condition of the original product model can be analyzed according to the processing technology so as to identify an easily deformable area and an difficultly deformable area on the surface A; in addition, the shape of the product after production can be compared with the original product model to identify the easily deformable area and the difficultly deformable area on the surface A modeling. By distinguishing the easily deformable area and the non-deformable area on the surface A, the easily deformable area can be conveniently adjusted subsequently. As shown in fig. 3, the deformation amounts of the area a, the area B and the area C on the original product model are small, and can be regarded as the non-deformable area on the surface a; and the other areas have larger deformation, so that the area can be regarded as an easily-deformed area on the A surface.
And analyzing the curvature radius of each section line forming the surface A molding to obtain curvature data of a plurality of sections of connecting lines of the section lines. After distinguishing the easily deformable area and the difficultly deformable area on the surface A model, analyzing longitudinal section lines at each position of the whole surface A model, particularly analyzing the longitudinal section lines at the surface A model position of the easily deformable area to obtain curvature data of each section line, so that subsequent adjustment processing can be conveniently carried out according to the curvature data of the section lines. Moreover, each section line is formed by connecting a plurality of sections of connecting lines, and curvature data of the section lines, namely curvature radiuses of the plurality of sections of connecting lines on the section lines, are acquired. The above analysis process can be performed by CAE (computer aid analysis) software. As shown in fig. 4, the cross-sectional line is one of the cross-sectional curves forming the a-plane, the cross-sectional line is formed by connecting different segments of connecting lines, and each segment of connecting line is analyzed to obtain curvature data of each segment of connecting line.
In step S200, the step of "performing a process reverse adjustment on the easily deformable region" includes the steps of:
and step S210, taking the non-deformable area on the surface A modeling as an adjustment standard. Before the easy-deformation area on the surface A is reversely adjusted, the area A, the area B and the area C of the difficult-deformation area on the surface A are required to be used as basic control points, so that the process treatment reverse adjustment is conveniently carried out on the easy-deformation area on the surface A.
And S220, regularly and reversely adjusting the molded surface of the easy-to-deform area according to the acquired curvature data of the easy-to-deform area and the section line on the surface A molding and the adjustment reference. And adjusting the curvature radius of the section line of the easy deformation area of the surface A modeling by adopting the reverse sequence of the last processing procedure, the penultimate processing procedure, the second to last processing procedure and the first processing procedure so as to realize the reverse adjustment of the easy deformation area.
In step S220, the step of "regularly and reversely adjusting the profile of the deformable region" includes the steps of:
step S222, setting the part of the section line of the easy-to-deform area, with the curvature radius value smaller than or equal to the preset curvature radius value, as a non-adjustable area, and setting the part of the section line of the easy-to-deform area, with the curvature radius value larger than the preset curvature radius value, as an adjustable area. That is, before adjusting the section line of the easy-to-deform region on the surface a model, the adjustable region and the non-adjustable region of the easy-to-deform region need to be determined, so as to adjust the curvature radius of the connecting line of the section line of the adjustable region in the following. As shown in fig. 5 to 7, the 100 part region may be the non-adjustable region, the 200 part region may be the adjustable region, and the a region and the C region may be regions that are not easily deformed, i.e., adjustment criteria.
Step S224, keeping the curvature radius of the section line of the non-adjustable region constant, and adjusting the curvature radius of the section line located in the adjustable region so that the adjustment direction is opposite to the deformation direction of the easily deformable region. That is, after the adjustable region of the easily deformable region is determined, the radius of curvature of the connecting lines of the section lines of the adjustable region may be adjusted to reduce or eliminate the deformation of the respective connecting lines of the section lines. The curvature radius of the connecting line of the section line is changed before and after adjustment, the change value is determined by comprehensively analyzing the size of the analysis result deformation and the relative position relation of the model setting supporting part, and the analysis result A surface modeling deformation direction of the model is adjusted in a reverse modeling mode. As shown in fig. 5 to 7, a is a longitudinal section of the a-surface model of the original product model, and b is a longitudinal section of the a-surface model of the original product model after the reverse adjustment treatment (which can also be regarded as a longitudinal section of the a-surface model of the new model).
Step S226, according to the transverse shape change of the a-surface model, adjusting and constructing the connecting lines of the section lines at the plurality of positions of the adjustable region, so that the a-surface model reconstruction is performed after the plurality of section lines of the adjusted structure form a grid. The curvature radiuses of the multiple sections of connecting lines of the multiple longitudinal section lines at different positions of the adjustable area of the easily-deformable area on the surface A model are respectively adjusted according to the transverse shape change of the surface A model to complete the adjustment of the longitudinal section lines of the whole adjustable area, the multiple longitudinal section lines are reconstructed to form a grid, and then the reconstruction of the surface A model is completed through auxiliary software such as CATIA (computer-graphics aided three-dimensional interactive application), so that the adaptive adjustment of the surface A model is realized, and a new product model can be obtained.
Optionally, after the step of "adjusting the profile of the easily deformable region until the first machining process is completed", the method comprises the following steps:
the process is supplemented on the a-side molding adjusted by the first processing procedure, and the molded surface strengthening feature 300 is formed at the middle splicing position of the a-side molding. In the first processing step of the product, two shapes that are bilaterally symmetric to the a-plane shape are generally processed at the same time (as shown in fig. 8), so that the left-side door outer panel and the right-side door outer panel of the automobile rear door outer panel are processed in the subsequent process. At this moment, the middle splicing position is arranged between the two modeling molded surfaces for forming the left side door outer plate and the right side door outer plate, the molding surface strengthening feature 300 can be arranged at the middle splicing position to strengthen the middle splicing position, so as to ensure the rigidity and the strength of the A surface modeling of the product, and provide a foundation for the shape assurance of the A surface modeling in the subsequent processing process (namely ensure that the deformation of the A surface modeling is reduced in the subsequent processing process).
Further, the step of forming a profile strengthening feature at the middle splicing position of the A-face molding comprises the following steps:
a triangular convex feature is formed at the splicing position of the middle part of the A-surface model, trapezoidal sunken groove features are respectively formed at the waistlines of two sides of the triangular convex feature, and the triangular convex feature and the trapezoidal sunken groove features form the profile reinforcing feature (as shown in figures 9 to 10). A triangular convex feature and a trapezoidal sunken groove feature are arranged at the middle splicing position of the A-surface model, so that the middle splicing position is strengthened.
Specifically, the appearance shape of the above-mentioned profile reinforcing feature is similar to an isosceles triangle, and chamfering processing (radius of rounding may be 30mm) is performed on three vertex portions, the shape of two long sides of the three top sides thereof is two regular curves parallel to the product edge line (the distance from the product edge line may be 40mm), the side wall is formed by downward drawing the top curve (the side wall drawing angle may be 15 °), a trapezoidal sink groove feature is formed between the two waist line drawing forming side walls and the edge of the product itself (the upper bottom of the trapezoidal sink groove feature may be 40mm, the height thereof is 20mm, and the width of the lower bottom thereof is 20mm), and chamfering processing (radius of rounding may be 10mm) is performed on each vertex of the trapezoidal sink groove feature, and the section line thereof is as shown in fig. 7. Through the arrangement of the process supplement area similar to the triangular boss, more materials can be absorbed during product stamping production, so that the A-surface shape of the product is ensured to be more fully extended. The trapezoidal sink groove features on the two sides of the triangular convex feature can control the flow of the material in the middle process supplement area, and the product is strongly stretched once in the process of several millimeters before reaching the bottom, so that the material of the part of the product is further processed and hardened, and the strength of the edge line position of the product is improved.
In addition, after the step of forming the profile reinforcing feature at the middle splicing position of the A-surface modeling, the method comprises the following steps:
a rear wheel characteristic area 400 is arranged on the surface A model, and a reverse radian model opposite to the radian of the rear wheel is arranged on the rear wheel characteristic area. In the process design stage, the range of the process supplement area can be further enlarged by adopting a reverse radian molding opposite to the radian of the rear wheel at the position of the characteristic area 40 of the rear wheel, on one hand, the pressing material of the product extends towards the outer side of the product, so that the possibility that the material flowing through the die opening generates defects and enters the product area is reduced, on the other hand, the molding characteristic can absorb more materials entering the die cavity of the female die, and the effect of stretching the material to a greater extent is achieved, so that the rigidity is improved.
Furthermore, after the step of forming the profile reinforcing feature at the middle splicing position of the a-face molding, the method comprises the following steps:
an upper die bottoming condition check plane d is arranged in the rear wheel characteristic area 400, and forms a check benchmark when the die is debugged and produced. Meanwhile, in the process supplement at the position, an upper die bottom condition inspection plane d (shown in figure 11) is arranged in the process supplement area, an inspection benchmark is provided in the debugging and production processes of the die, and whether the deep drawing depth of the product is in place or not can be clearly seen by observing marks arranged on the upper die at the position of the deep drawing die and the condition that the lower die generates marks.
In addition, the invention also provides an automobile rear door outer plate which is processed and manufactured by the stamping process method of the rear door outer plate. In the process design stage, areas which are possibly deformed after the production of the product are identified, the support characteristics of the product are considered, the forming CAE analysis result of the product on the basis of the original product model profile is combined, the areas which are easy to deform and are shaped on the surface A of the product are subjected to reverse adjustment of process treatment, the deformation condition of the product is improved from the last processing procedure to the first processing procedure, and the mold processing period and the mold exchanging period can be shortened; moreover, the process supplementary area is formed by arranging the regular shape characteristics at the splicing part of the left and right pieces of the first processing procedure of the outer plate of the rear door, so that the problems of insufficient sideline stretching and insufficient product rigidity of the splicing position of the outer plate of the rear door in the stamping production process can be solved; in addition, an upper die bottom condition checking plane is arranged on a process supplementing surface of the rear wheel characteristic area, so that convenience is provided for checking whether the deep drawing depth of a product is in place, and the quality of the product can be further guaranteed.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A rear door outer plate stamping process method is characterized by comprising the following steps:
analyzing the punched original product model to obtain an easily deformable area after the original product model is produced;
carrying out reverse adjustment on the process treatment on the easily-deformed area to obtain a new product model of the outer plate of the rear vehicle door;
and according to the obtained new product model, carrying out stamping process treatment on the blank, and forming to obtain the outer plate of the rear vehicle door.
2. The method for stamping a rear door outer panel as claimed in claim 1, wherein the step of "performing process reverse adjustment on the easily deformable region" includes the steps of:
firstly, adjusting the molded surface of the easily-deformed area from the last processing procedure;
then, adjusting the molded surface of the easily-deformed region in a penultimate processing procedure;
and the rest is repeated until the profile of the easily-deformed region is adjusted in the first machining procedure.
3. The method for stamping a rear door outer panel as claimed in claim 1, wherein the step of analyzing the stamped original product model to obtain the easily deformable region after the original product model is produced comprises the steps of:
analyzing the punched original product model, and identifying an easily deformable region and an difficultly deformable region on the surface A model of the original product model after production;
and analyzing the curvature radius of each section line forming the surface A molding to obtain curvature data of a plurality of sections of connecting lines of the section lines.
4. The method for stamping a rear door outer panel as claimed in claim 3, wherein the step of "performing process reverse adjustment on the easily deformable region" includes the steps of:
taking the non-deformable area on the A-surface model as an adjustment reference;
and performing regular reverse adjustment on the molded surface of the easy-to-deform area according to the acquired curvature data of the easy-to-deform area and the section line on the A-surface molding and the adjustment reference.
5. The method for stamping a rear door outer panel as claimed in claim 4, wherein the step of regularly and reversely adjusting the profile of the easily deformable region comprises the steps of:
setting the part of the section line on the molded surface of the easy-deformation area, of which the curvature radius value is smaller than or equal to a preset curvature radius value, as a non-adjustable area, and setting the part of the section line on the molded surface of the easy-deformation area, of which the curvature radius value is larger than the preset curvature radius value, as an adjustable area;
keeping the curvature radius of the section line of the non-adjustable region unchanged, and adjusting the curvature radius of the section line positioned in the adjustable region to enable the adjustment direction to be opposite to the deformation direction of the easily-deformable region;
and respectively carrying out adjustment structure on the connecting lines of the section lines at a plurality of positions of the adjustable area according to the transverse shape change of the A-surface modeling, so that the A-surface modeling reconstruction is carried out after the plurality of section lines of the adjustment structure form grids.
6. The method for stamping a rear door outer panel as claimed in claim 2, wherein the step of "adjusting the profile of the easily deformable region until the first working process is completed" includes the steps of:
and performing process supplement setting on the A-surface model adjusted by the first processing procedure, and forming a profile strengthening feature at the splicing position of the middle part of the A-surface model.
7. The method of claim 6, wherein the step of forming a profile reinforcement feature at a mid-splice location of the A-plane molding comprises the steps of:
a triangular convex feature is formed at the splicing position of the middle part of the A-surface model, trapezoidal sunken groove features are formed at the waist lines on two sides of the triangular convex feature respectively, and the triangular convex feature and the trapezoidal sunken groove features form the profile reinforcing feature.
8. The method of claim 6, wherein the step of forming the profile strengthening feature at the mid-splice location of the A-plane molding is followed by the step of:
the A-surface model is provided with a rear wheel characteristic area, and the rear wheel characteristic area is provided with a reverse radian model opposite to the radian of the rear wheel.
9. The method of claim 8, wherein the step of forming the profile strengthening feature at the mid-splice location of the a-plane molding is followed by the step of:
and arranging an upper die bottom condition inspection plane in the rear wheel characteristic area, wherein the upper die bottom condition inspection plane forms an inspection benchmark during die debugging and production.
10. An automobile rear door outer panel, characterized in that the automobile rear door outer panel is manufactured by adopting the stamping process method of the rear door outer panel as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010520978.6A CN111687269B (en) | 2020-06-09 | 2020-06-09 | Rear door outer plate stamping process method and automobile rear door outer plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010520978.6A CN111687269B (en) | 2020-06-09 | 2020-06-09 | Rear door outer plate stamping process method and automobile rear door outer plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111687269A true CN111687269A (en) | 2020-09-22 |
| CN111687269B CN111687269B (en) | 2021-04-27 |
Family
ID=72479942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010520978.6A Active CN111687269B (en) | 2020-06-09 | 2020-06-09 | Rear door outer plate stamping process method and automobile rear door outer plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111687269B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115213276A (en) * | 2022-06-23 | 2022-10-21 | 中国第一汽车股份有限公司 | Technological method for controlling slippage of main ridge line of side wall |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1970186A (en) * | 2005-11-21 | 2007-05-30 | 比亚迪股份有限公司 | Automobile outer plate covering process supplement method |
| CN101363327A (en) * | 2008-09-26 | 2009-02-11 | 无锡透平叶片有限公司 | Method for processing TC11 material blade |
| CN101439377A (en) * | 2008-12-22 | 2009-05-27 | 奇瑞汽车股份有限公司 | Stamping processing method for related joint of vehicle side-frame outer plate and roof board |
| CN102231170A (en) * | 2011-03-31 | 2011-11-02 | 西北工业大学 | Parameterized sizing method for turbine blade mould cavity |
| CN102814430A (en) * | 2012-08-14 | 2012-12-12 | 奇瑞汽车股份有限公司 | Stamping method of top cover outer plate with skylight |
| CN102847849A (en) * | 2012-08-28 | 2013-01-02 | 奇瑞汽车股份有限公司 | Process method for solving deformation of periphery of doorknob of automotive door outer plate |
| CN102880756A (en) * | 2012-09-26 | 2013-01-16 | 西北工业大学 | Method for compensating precision milling deformation of thin-wall blade |
| CN103547388A (en) * | 2011-05-20 | 2014-01-29 | 新日铁住金株式会社 | Press-molding method, and vehicle component |
| CN107737829A (en) * | 2013-07-09 | 2018-02-27 | 杰富意钢铁株式会社 | The forming method of sheet material and the establishing method of pre-form shape |
| US20180073096A1 (en) * | 2015-03-24 | 2018-03-15 | Nhk Spring Co., Ltd. | Method for producing hollow stabilizer |
| CN110052540A (en) * | 2019-03-25 | 2019-07-26 | 一汽轿车股份有限公司 | The die face of optimization body outer panel surface quality crosses the compensation method of the face A |
| CN110227771A (en) * | 2018-03-06 | 2019-09-13 | 上海赛科利汽车模具技术应用有限公司 | A kind of exterior panel die face formative method |
-
2020
- 2020-06-09 CN CN202010520978.6A patent/CN111687269B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1970186A (en) * | 2005-11-21 | 2007-05-30 | 比亚迪股份有限公司 | Automobile outer plate covering process supplement method |
| CN101363327A (en) * | 2008-09-26 | 2009-02-11 | 无锡透平叶片有限公司 | Method for processing TC11 material blade |
| CN101439377A (en) * | 2008-12-22 | 2009-05-27 | 奇瑞汽车股份有限公司 | Stamping processing method for related joint of vehicle side-frame outer plate and roof board |
| CN102231170A (en) * | 2011-03-31 | 2011-11-02 | 西北工业大学 | Parameterized sizing method for turbine blade mould cavity |
| CN103547388A (en) * | 2011-05-20 | 2014-01-29 | 新日铁住金株式会社 | Press-molding method, and vehicle component |
| CN102814430A (en) * | 2012-08-14 | 2012-12-12 | 奇瑞汽车股份有限公司 | Stamping method of top cover outer plate with skylight |
| CN102847849A (en) * | 2012-08-28 | 2013-01-02 | 奇瑞汽车股份有限公司 | Process method for solving deformation of periphery of doorknob of automotive door outer plate |
| CN102880756A (en) * | 2012-09-26 | 2013-01-16 | 西北工业大学 | Method for compensating precision milling deformation of thin-wall blade |
| CN107737829A (en) * | 2013-07-09 | 2018-02-27 | 杰富意钢铁株式会社 | The forming method of sheet material and the establishing method of pre-form shape |
| US20180073096A1 (en) * | 2015-03-24 | 2018-03-15 | Nhk Spring Co., Ltd. | Method for producing hollow stabilizer |
| CN110227771A (en) * | 2018-03-06 | 2019-09-13 | 上海赛科利汽车模具技术应用有限公司 | A kind of exterior panel die face formative method |
| CN110052540A (en) * | 2019-03-25 | 2019-07-26 | 一汽轿车股份有限公司 | The die face of optimization body outer panel surface quality crosses the compensation method of the face A |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115213276A (en) * | 2022-06-23 | 2022-10-21 | 中国第一汽车股份有限公司 | Technological method for controlling slippage of main ridge line of side wall |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111687269B (en) | 2021-04-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4633625B2 (en) | Determination of the geometry model at the metal sheet forming stage | |
| US8155777B2 (en) | Method for the designing of tools | |
| JP5002411B2 (en) | Model design system | |
| US20040199270A1 (en) | Draw-in map for stamping die tryout | |
| CN102672059B (en) | The method of mould concave-convex mold amendment profile is determined according to emulation stamped workpieces thickness | |
| CN110293167B (en) | SUV automobile back door outer plate drawing technical surface modeling method | |
| CN111687269B (en) | Rear door outer plate stamping process method and automobile rear door outer plate | |
| CN104200054A (en) | Gap design method used for automobile covering part die | |
| CN109647993A (en) | A method of processing crest line slippage defect | |
| CN107169171A (en) | A kind of EMUs head dummy design method | |
| Wang et al. | A robust and accurate geometric model for automated design of drawbeads in sheet metal forming | |
| ES2715081T3 (en) | Leftover design without sections | |
| Li et al. | Algorithm research and system development on geometrical springback compensation system for advanced high-strength steel parts | |
| JP5911466B2 (en) | Method and system for determining draw model in press molding | |
| CN114692242A (en) | Injection molding reinforcing rib parametric modeling method based on CATIA software | |
| CN106326550A (en) | Modeling method of complex skin part springback compensation process model | |
| KR101079770B1 (en) | A modeling method of preform for forging | |
| KR100664722B1 (en) | Automatic design system for hemming dies | |
| JP2012068867A (en) | Metal mold shape data creation system | |
| Li et al. | Intelligent design method and system of trimming block for stamping dies of complex automotive panels | |
| CN113579046A (en) | Method for molding drawing technical surface of outer plate of front side wall of automobile | |
| CN110355284A (en) | Profile member for being configured to the method for the profile member of molding die and being manufactured by means of this method | |
| CN112588921A (en) | Automobile door outer plate stamping process and stamping die | |
| JP2023149635A (en) | Design method of mold, manufacturing method of mold, program, and manufacturing method of press component | |
| CN115455558A (en) | Processing method for eliminating flour product defects of concave area of outer covering piece |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |