CN102169521B - Design method for molded surface of automobile cover part die based on molded surface deformation compensation - Google Patents
Design method for molded surface of automobile cover part die based on molded surface deformation compensation Download PDFInfo
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Abstract
The invention discloses a design method for a molded surface of an automobile cover part die based on molded surface deformation compensation, which comprises the steps of predicting the contact state of the molded surface based on similar die numerical value simulation, outputting a compensation guide document for the molded surface of the die based on the dethickness of a manufactured piece and the elastic deformation of the die, using CAD (computer aided design) software to design the compensation molded surface of the die based on the guide document and outputting the CAD compensation molded surface, and outputting the repaired actual molded surface of the die by using a method based on reverse engineering. Under the premises of reasonable technical conditions and die structures, a CAE-CAD-CMM (computer aided engineering-computer aided design-capability maturity model) integration system for the molded surface of the automobile cover part die based on the dethickness of the manufactured piece and the elastic deformation compensation of the die is formed. The method can be adopted for quickening the design process of the molded surface of the automobile cover part die, reducing the manual grinding time, guarantees the fit precision of the molded surface of the die and the forming precision of the automobile cover part, and provides a new method for the high-quality short-period debugging work of the automobile cover panel die.
Description
Technical field
The present invention relates to a kind of car panel die profile method for designing.Particularly relate to a kind of method for designing based on the deformation-compensated car panel die profile of profile.
Background technology
The stability of cladding member mold when high frequency time is worked is the most important assurance of fundamental sum of mold performance, and the precision of the stability will guarantee mold work time the just must guarantee the punch-die dynamic fit time.Mould dynamic fit precision is divided into guiding quality of fit and function face quality of fit, is mainly reflected on the height of upper and lower mould applying rate.In order to reach the applying rate (about 90%) of regulation, the mould pincers worker is benchmark usually with the punch, and the die after the processing is carried out bedding-in.Coat blue oil or red lead powder through colouring at the pros and cons of product, confirm its applying rate by the contact (area) pattern of upper and lower mould on the product of tinting.On behalf of pressure-pad-force, forming force, the product uniform coloring all affact equably on the product, painted inhomogeneous when then representing the mould matched moulds painted areas local gap little, power is concentrated and is acted on the part.Therefore, motor corporation is when checking and accepting mould, and all strict regulations colorize method and applying rate judge with this whether mould reaches requirement.
The dynamic fit precision of die face; Directly affect the stability of mold work and the precision of automobile panel; Find that in the debugging for many years of mould influencing mould dynamic fit accuracy factors has: plate drawing and moulding attenuate, the elastic deformation of mould under the big pressure of moulding.
Because meeting attenuation during the plate drawing and moulding, and the trend of attenuate is very complicated.The position that guarantees product needs between punch-die is all painted, must before processing, predict with regard to the attenuate to product, then deflection is mapped on the die face, and former die face is compensated.Along with global automobile manufacturing enterprise is carried out automobile lightweight Study on Technology one after another; High strength steel plate integrates the desirable new automobile of high strength, good plasticity beyond doubt and uses material; Particularly the key safety product of C level coachbuilt body all will adopt the high strength steel plate manufacturing; Therefore, carrying out high strength steel plate draws attenuate die face Compensation Research and has more realistic meaning.
Car panel die weight one about ten tons or tens tons, the forming pressure during work has the hundreds of ton even goes up kiloton, under huge forming pressure, mould no longer has been a rigid body.Each regional gap width of die face that certain mould adopts the pressing lead wires method to record under forming pressure, near the gap value difference 0.27mm at the most weak mould middle part of die parting line stud place and structural strength, along with the increase of forming pressure, elastic deformation will be more serious.Therefore, must just be optimized design, and combine elastic deformation to carry out the die face compensation, to reduce pincers worker bedding-in amount from the blank stage to mould structure.
At present; The raising of car panel die profile applying rate mainly still relies on mould pincers worker manual grinding, and labour intensity is big, and the production cycle is long; Can utilize ripe numerical simulation technology; That takes all factors into consideration automobile panel draws reduction and mould in big pressure elastic deformation down, and combines with the empirical value that repairs a die for many years, develops the digital automobile covering technology that repairs a die.
Summary of the invention
Technical matters to be solved by this invention is; Provide that a kind of to solve in the prior art car panel die work profile applying rate time that repairs a die long, the big and profile of workload is the not high method for designing based on the deformation-compensated car panel die profile of profile of compensation precision in advance.
The technical scheme that the present invention adopted is: a kind of method for designing based on the deformation-compensated car panel die profile of profile; Comprise: based on the profile contact condition prediction of similar mould numerical simulation, output is based on the phase one of the die face compensation policy paper of product reduction and mould elastic deformation; On the policy paper basis, utilize CAD software design mould compensation profile, the subordinate phase of output CAD compensation profile; The phase III of the actual mould profile output after utilization will repair a die based on the method for reverse-engineering.
Described profile contact condition prediction based on similar mould numerical simulation, output comprised the steps: based on the phase one of the die face compensation policy paper of product reduction and mould elastic deformation
A) according to the correlated characteristic and the moulding requirement of automobile panel, design product CAD draws profile;
B) carry out the mould structure design according to the profile of drawing of product with corresponding technical standard; Obtain three-dimensional CAD mould solid data; And with the discharge orifice that needs in the actual production, location resigning hole, mould fillet, the deletion of lifting hanger circular hole feature structure form the structural similarity mould with original mould;
C) utilize dynaform or autoform software that product CAD is drawn profile and carry out the shell unit grid dividing, form the numerical Simulation analysis, obtain the reduction and the distribution range data of all profiles except that fillet behind the product drawing and moulding;
D) utilize UG software to carry out the three-dimensional CAD mold former and carry out the entity grid dividing, the entity grid that generates is imported LS-DYNA software carry out the elastic deformation analysis of mould under forming force, obtain the displacement distributed data of mould die work profile;
E) according to the numeric distribution of the reduction t1 of product numerical simulation, obtain the only first profile compensation rate T1 under the influence of product reduction of mould, wherein T1=t1 * product material is thick;
F) according to the maximum displacement s1 of the die work profile of mould elastic deformation simulation, obtain only second profile compensation rate T2, the wherein T2=s1+0.2mm under the elastic deformation influence of mould;
G) with the first profile compensation rate T1, the second profile compensation rate T2 superposes, and obtains the total compensation rate T of profile, T=T1+T2, the total compensation rate policy paper of output mask profile;
The described CAD software design mould compensation profile of on the policy paper basis, utilizing; The subordinate phase of output CAD compensation profile; Be according to the profile compensation rate in the profile compensation policy paper; Utilize UG or CATIA software design mould punch-die profile cad model C1, and be used for the programming processing of mould;
The phase III of the actual mould profile output after described will the repairing a die, may further comprise the steps:
A) carry out the actual mould debugging, confirm mould and product applying rate through product bluing oil-staining method;
B) if do not satisfy the requirement of applying rate, profile is carried out manual work polishing after meet the demands, and obtains the cloud data of die face after the polishing through three-coordinates measuring machine;
C) utilize UG or CATIA software to carry out surface reconstruction cloud data, obtain the actual die face cad model C2 that satisfies under the applying rate situation;
D) utilize the error analysis module of CATIA software; Die face cad model C2 and punch-die profile cad model C1 are compared; Draw each tag type surface error value E1 of punch-die profile cad model C1, wherein E1=C2 characteristic profile height-C1 characteristic profile height;
E) according to the error value E 1 that draws and the T value that in the phase one, obtains, obtain correction formula and be: T
Modified value=T+E1 forms die face compensation knowledge base.
Method for designing based on the deformation-compensated car panel die profile of profile of the present invention; Be a kind of under the prerequisite of reasonable process conditions and mould structure; Formed car panel die profile CAE-CAD-CMM integrated system based on product reduction and the compensation of mould elastic deformation; Adopt method for designing of the present invention to carry out the debugging of die face applying rate, can accelerate car panel die profile design process, reduce the time of artificial polishing; Guarantee die face quality of fit and automobile panel formed precision, for car panel die high-quality, short-period debugging work provide a kind of new method.
Description of drawings
Fig. 1 is the process flow diagram of the inventive method;
Fig. 2 is an embodiment of the invention automobile panel product CAD digital model;
Fig. 3 is that embodiment of the invention automobile panel draws the CAD profile;
Fig. 4 is an embodiment of the invention car panel die 3D solid CAD digital model;
Fig. 5 is the embodiment car panel die 3D solid CAD digital model after the present invention simplifies;
Fig. 6 dynaform software draws several types to Embodiment C AD and carries out grid dividing;
Fig. 7 is the design sketch of embodiment of the invention Mould CAD digital model UG software 3D solid grid dividing;
Fig. 8 is the total compensation rate policy paper of embodiment of the invention die face
Among the figure: A is a center of deformation, deflection 0.4mm; B is the distortion border, deflection 0mm;
Fig. 9 is an embodiment of the invention mould die profile cad model.
Embodiment
Below in conjunction with embodiment and accompanying drawing the method for designing based on the deformation-compensated car panel die profile of profile of the present invention is made detailed description.
As shown in Figure 1; Method for designing based on the deformation-compensated car panel die profile of profile of the present invention; Comprise: based on the profile contact condition prediction of similar mould numerical simulation, output is based on the phase one of the die face compensation policy paper of product reduction and mould elastic deformation; On the policy paper basis, utilize CAD software design mould compensation profile, the subordinate phase of output CAD compensation profile; The phase III of the actual mould profile output after utilization will repair a die based on the method for reverse-engineering.
Shown in the module among Fig. 1 one, described profile contact condition prediction based on similar mould numerical simulation, output comprised the steps: based on the phase one of the die face compensation policy paper of product reduction and mould elastic deformation
A) according to the correlated characteristic and the moulding requirement of automobile panel shown in Figure 2, it is as shown in Figure 3 that design product CAD draws profile;
B) carry out the mould structure design according to the profile of drawing of product with corresponding technical standard; It is as shown in Figure 4 to obtain three-dimensional CAD mould solid data, and with the discharge orifice that needs in the actual production, location resigning hole, the deletion of feature structures such as mould fillet, lifting hanger circular hole; Form structural similarity mould with original mould; Because of shape, the structural symmetry of present embodiment product and mould, below analyze and choose a half model and analyze, as shown in Figure 5;
C) utilize dynaform or autoform software that product CAD is drawn profile and carry out the shell unit grid dividing, as shown in Figure 6.Form the numerical Simulation analysis, accomplish the numerical simulation analysis of product forming process after, obtain the reduction and the distribution range data of all profiles except that fillet behind the product drawing and moulding;
D) utilize UG software to carry out the three-dimensional CAD mold former and carry out the entity grid dividing; As shown in Figure 7; Again the entity grid that generates is imported LS-DYNA software and carry out the elastic deformation analysis of mould under forming force, obtain the displacement distributed data of mould die work profile;
E) according to the numeric distribution of the reduction t1 of product numerical simulation, obtain the only first profile compensation rate T1 under the influence of product reduction of mould, wherein T1=t1 * product material is thick; Reduction like the product somewhere is t1=1%, the first profile compensation rate T1=1% * 0.8mm=0.008mm that then should locate, and also calculate according to this kind method in other zone, obtains the distribution of product at the first profile compensation rate T1 of zones of different.
F) according to the maximum displacement s1 of the die work profile of mould elastic deformation simulation, obtain only second profile compensation rate T2, the wherein T2=s1+0.2mm under the elastic deformation influence of mould; Like the s1=0.12mm in product somewhere, obtain this and locate the second profile compensation rate T2=s1+0.2=0.32mm; Also calculate according to this kind method in other zone, obtains the distribution of product at the second compensation rate T2 of zones of different.
G) the first profile compensation rate T1 and the second profile compensation rate T2 with the same area superposes, and obtains the total compensation rate T of profile, T=T1+T2, and the total compensation rate policy paper of output mask profile, as shown in Figure 8; The total compensation rate T=T1+T2=0.008+0.32=0.328mm of product somewhere profile gives an example; Also calculate according to this kind method in other zone, obtains the distribution of product at total compensation rate T of zones of different.
Shown in the module among Fig. 1 two; The described CAD software design mould compensation profile of on the policy paper basis, utilizing; The subordinate phase of output CAD compensation profile is according to the profile compensation rate in the profile compensation policy paper, utilizes UG or CATIA software design mould punch-die profile cad model C1; The die profile is as shown in Figure 9, and is used for the programming processing of mould;
Shown in the module among Fig. 1 three, the phase III of the actual mould profile output after described will the repairing a die, may further comprise the steps:
A) carry out the actual mould debugging, confirm mould and product applying rate through product bluing oil-staining method;
B) if do not satisfy the requirement of applying rate, profile is carried out manual work polishing after meet the demands, and obtains the cloud data of die face after the polishing through three-coordinates measuring machine;
C) utilize UG or CATIA software to carry out surface reconstruction cloud data, obtain the actual die face cad model C2 that satisfies under the applying rate situation;
D) utilize the error analysis module of CATIA software; Die face cad model C2 and punch-die profile cad model C1 are compared; Draw each tag type surface error value E1 of punch-die profile cad model C1, wherein E1=C2 characteristic profile height-C1 characteristic profile height;
E) according to the error value E 1 that draws and the T value that in the phase one, obtains, obtain correction formula and be: T
Modified value=T+E1 forms die face compensation knowledge base.
Claims (3)
1. method for designing based on the deformation-compensated car panel die profile of profile; It is characterized in that; Comprise: based on the profile contact condition prediction of similar mould numerical simulation, output is based on the phase one of the die face compensation policy paper of product reduction and mould elastic deformation; On the policy paper basis, utilize CAD software design mould compensation profile, the subordinate phase of output CAD compensation profile; The phase III of the actual mould profile output after utilization will repair a die based on the method for reverse-engineering,
Described profile contact condition prediction based on similar mould numerical simulation, output comprised the steps: based on the phase one of the die face compensation policy paper of product reduction and mould elastic deformation
A) according to the correlated characteristic and the moulding requirement of automobile panel, design product CAD draws profile;
B) carry out the mould structure design according to the profile of drawing of product with corresponding technical standard; Obtain three-dimensional CAD mould solid data; And with the discharge orifice that needs in the actual production, location resigning hole; Mould fillet, the deletion of lifting hanger circular hole feature structure form the structural similarity mould with original mould;
C) utilize dynaform or autoform software that product CAD is drawn profile and carry out the shell unit grid dividing, form the numerical Simulation analysis, obtain the reduction and the distribution range data of all profiles except that fillet behind the product drawing and moulding;
D) utilize UG software to carry out the three-dimensional CAD mold former and carry out the entity grid dividing, the entity grid that generates is imported LS-DYNA software carry out the elastic deformation analysis of mould under forming force, obtain the displacement distributed data of mould die work profile;
E) according to the numeric distribution of the reduction t1 of product numerical simulation, obtain the only first profile compensation rate T1 under the influence of product reduction of mould, wherein T1=t1 * product material is thick;
F) according to the maximum displacement s1 of the die work profile of mould elastic deformation simulation, obtain only second profile compensation rate T2, the wherein T2=s1+0.2mm under the elastic deformation influence of mould;
G) with the first profile compensation rate T1, the second profile compensation rate T2 superposes, and obtains the total compensation rate T of profile, T=T1+T2, the total compensation rate policy paper of output mask profile.
2. the method for designing based on the deformation-compensated car panel die profile of profile according to claim 1; It is characterized in that; The described CAD software design mould compensation profile of on the policy paper basis, utilizing, the subordinate phase of output CAD compensation profile is according to the profile compensation rate in the profile compensation policy paper; Utilize UG or CATIA software design mould punch-die profile cad model C1, and be used for the programming processing of mould.
3. the method for designing based on the deformation-compensated car panel die profile of profile according to claim 1 is characterized in that, the phase III of the actual mould profile output after described will the repairing a die, may further comprise the steps:
A) carry out the actual mould debugging, confirm mould and product applying rate through product bluing oil-staining method;
B) if do not satisfy the requirement of applying rate, profile is carried out manual work polishing after meet the demands, and obtains the cloud data of die face after the polishing through three-coordinates measuring machine;
C) utilize UG or CATIA software to carry out surface reconstruction cloud data, obtain the actual die face cad model C2 that satisfies under the applying rate situation;
D) utilize the error analysis module of CATIA software; Die face cad model C2 and punch-die profile cad model C1 are compared; Draw each tag type surface error value E1 of punch-die profile cad model C1, wherein E1=C2 characteristic profile height-C1 characteristic profile height;
E) according to the error value E 1 that draws and the T value that in the phase one, obtains, obtain correction formula and be: T
Modified value=T+E1 forms die face compensation knowledge base.
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| CN2011101042455A CN102169521B (en) | 2011-04-25 | 2011-04-25 | Design method for molded surface of automobile cover part die based on molded surface deformation compensation |
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| CN2011101042455A CN102169521B (en) | 2011-04-25 | 2011-04-25 | Design method for molded surface of automobile cover part die based on molded surface deformation compensation |
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| CN113239454B (en) * | 2021-04-06 | 2023-06-13 | 中国第一汽车股份有限公司 | Calculation method of mold profile compensation value |
| CN113591167A (en) * | 2021-06-21 | 2021-11-02 | 瑞鹄汽车模具股份有限公司 | Stamping deformation compensation method of press |
| CN113836663B (en) * | 2021-09-26 | 2023-11-21 | 成都普什汽车模具有限公司 | Method for obtaining elastic deformation compensation value of working table of automobile die press |
| CN114434092B (en) * | 2021-12-15 | 2023-03-14 | 成都飞机工业（集团）有限责任公司 | Production method of aviation plate frame type complex parts |
| CN114734213B (en) * | 2022-06-10 | 2022-09-09 | 眉山博雅新材料股份有限公司 | Mould processing method and system |
| CN115600488B (en) * | 2022-09-02 | 2023-11-14 | 南京天洑软件有限公司 | Method and device for designing mold surface of automobile windshield glass mold based on encoder-decoder model |
| CN115600487B (en) * | 2022-09-02 | 2024-02-02 | 南京天洑软件有限公司 | Method and device for designing mold surface of automobile windshield glass based on convolutional neural network |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102024081A (en) * | 2010-12-13 | 2011-04-20 | 四川省宜宾普什模具有限公司 | Automobile panel die design method |
-
2011
- 2011-04-25 CN CN2011101042455A patent/CN102169521B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102024081A (en) * | 2010-12-13 | 2011-04-20 | 四川省宜宾普什模具有限公司 | Automobile panel die design method |
Non-Patent Citations (4)
| Title |
|---|
| 林朝斌，周建军.《反求工程在模具设计及制造中的应用》.《杭州电子工业学院学报》.2001,第21卷(第6期), * |
| 窦锦文,苗德华,蔡玉俊.《基于拉延减薄的汽车覆盖件模具型面补偿研究》.《模具制造》.2011,(第3期), * |
| 赵洁.《逆向工程在模具设计与制造领域中的应用》.《装备制造技术》.2009,(第7期), * |
| 陈炜,陈红辉,谢俊 等.《基于回弹补偿的模具型面设计方法研究》.《锻压技术》.2008,第33卷(第6期), * |
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