CN105574301A - Design method for automobile covering part drawing die - Google Patents

Design method for automobile covering part drawing die Download PDF

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Publication number
CN105574301A
CN105574301A CN201610102129.2A CN201610102129A CN105574301A CN 105574301 A CN105574301 A CN 105574301A CN 201610102129 A CN201610102129 A CN 201610102129A CN 105574301 A CN105574301 A CN 105574301A
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CN
China
Prior art keywords
drawing die
module
die
file
automobile panel
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.)
Pending
Application number
CN201610102129.2A
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Chinese (zh)
Inventor
吴光武
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chengdu Hengtong Zhaoye Precision Machinery Co Ltd
Original Assignee
Chengdu Hengtong Zhaoye Precision Machinery Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Chengdu Hengtong Zhaoye Precision Machinery Co Ltd filed Critical Chengdu Hengtong Zhaoye Precision Machinery Co Ltd
Priority to CN201610102129.2A priority Critical patent/CN105574301A/en
Publication of CN105574301A publication Critical patent/CN105574301A/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F30/00Computer-aided design [CAD]
    • G06F30/20Design optimisation, verification or simulation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/20Deep-drawing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00Tools as parts of machines covered by this subclass
    • B21D37/10Die sets; Pillar guides
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F30/00Computer-aided design [CAD]
    • G06F30/10Geometric CAD
    • G06F30/15Vehicle, aircraft or watercraft design

Abstract

The invention discloses a design method for an automobile covering part drawing die. The design method includes the steps that step1, a part three-dimensional CAD file is imported for network partitioning and network model perfecting, and a first module is entered; step2, a flange edge is hided, the punching direction is automatically judged with punching depth, and a symmetrical face and a pressing face are established; step3, the punching draft angle is set to be 5 degrees, the material-feeding fillet is 10 mm, an addendum surface is established, and a whole circle of calendaring rib is established; step4, a second module is entered for rapid evaluation; step5, die CAD is generated, then die CAM is generated, a third module is entered for accurate evaluation, and the technical effects that in the design generation of the drawing die of an automobile covering part, the manufacturing defects of wrinkling, pull cracks and insufficient drawing are not prone to occurring are achieved.

Description

Automobile panel drawing die method for designing
Technical field
The present invention relates to manufacturing field, particularly, relate to automobile panel drawing die method for designing.
Background technology
Along with the development gradually of automobile industry, the processing and manufacturing development of automobile rapidly, needs to use multiple kinds of molds in automobile processing and manufacturing.
In the prior art, in the drawing die design of automobile panel generates, easily there is wrinkling, drawing crack and the manufacturing defect such as not enough that stretches.
In sum, present inventor, in the process realizing invention technical scheme in the embodiment of the present application, finds that above-mentioned technology at least exists following technical matters:
In the prior art, there is the technical matters easily occurring wrinkling, drawing crack and the not enough manufacturing defect that stretches in the drawing die design of existing automobile panel in generating.
Summary of the invention
The invention provides automobile panel drawing die method for designing, there is the technical matters easily occurring wrinkling, drawing crack and the not enough manufacturing defect that stretches during the drawing die design solving existing automobile panel generates, during the drawing die design achieving automobile panel generates, be not easy to occur the technique effect of wrinkling, drawing crack and the not enough manufacturing defect that stretches.
For solving the problems of the technologies described above, the embodiment of the present application provides automobile panel drawing die method for designing, and described method comprises:
Step 1: import part three-dimensional CAD file, carry out division network and improve network model, and entering the first module;
Step 2: hide flange, with press depth automatic decision pressing direction, set up the plane of symmetry and binder surface;
Step 3: setting punching press draft is 5 °, and pan feeding fillet 10mm, sets up process complementary surface, and sets up whole circle pressor unit;
Step 4: proceed to the second module and carry out rapid evaluation;
Step 5: after generating Mould CAD, generates CAM for die & mould, then enters the 3rd module and carry out precise evaluation.
Further, the first module is used for generating binder surface and process complementary surface fast; Second module is used for rapid evaluation mould; 3rd module is used for precise evaluation mould.
Further, described method also comprises step 6: design automobile panel drawing die based on most assessment result.
Further, described three-dimensional CAD file comprises the punching press profile of part, technique is supplemented, binder surface, pan feeding fillet and punching press oblique angle data.
Further, described design automobile panel drawing die based on most assessment result specifically comprises:
Set up the assembly structure of drawing die, in the assembly environment of UG, newly-built assembling file, creates empty part file by the method for adding New Parent;
Import die face graphic file, pressor unit 3D curve file, sheet material optimizes contour curve file, obtain die face curved surface and pressor unit curve and die face outline curve;
Projection, drawing, segmentation, shearing modeling method is adopted to carry out modeling to corresponding part;
Kinematic Simulation inspection is carried out to the drawing die completed;
Draw the assembling of drawing die and the engineering drawing of part.
The one or more technical schemes provided in the embodiment of the present application, at least have following technique effect or advantage:
Owing to have employed, automobile panel drawing die method for designing is designed to comprise: step 1: import part three-dimensional CAD file, carry out division network and improve network model, and entering the first module; Step 2: hide flange, with press depth automatic decision pressing direction, set up the plane of symmetry and binder surface; Step 3: setting punching press draft is 5 °, and pan feeding fillet 10mm, sets up process complementary surface, and sets up whole circle pressor unit; Step 4: proceed to the second module and enter rapid evaluation; Step 5: after generating Mould CAD, generate CAM for die & mould, then the technical scheme that the 3rd module carries out precise evaluation is entered, so, there is the technical matters easily occurring wrinkling, drawing crack and the not enough manufacturing defect that stretches during the drawing die design efficiently solving existing automobile panel generates, so the drawing die design achieving automobile panel generate in be not easy to occur the technique effect of wrinkling, drawing crack and the not enough manufacturing defect that stretches.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of automobile panel drawing die method for designing in the embodiment of the present application one.
Embodiment
The invention provides automobile panel drawing die method for designing, there is the technical matters easily occurring wrinkling, drawing crack and the not enough manufacturing defect that stretches during the drawing die design solving existing automobile panel generates, during the drawing die design achieving automobile panel generates, be not easy to occur the technique effect of wrinkling, drawing crack and the not enough manufacturing defect that stretches.
Technical scheme during the application implements is for solving the problems of the technologies described above.General thought is as follows:
Have employed and automobile panel drawing die method for designing is designed to comprise: step 1: import part three-dimensional CAD file, carry out division network and improve network model, and entering the first module; Step 2: hide flange, with press depth automatic decision pressing direction, set up the plane of symmetry and binder surface; Step 3: setting punching press draft is 5 °, and pan feeding fillet 10mm, sets up process complementary surface, and sets up whole circle pressor unit; Step 4: proceed to the second module and enter rapid evaluation; Step 5: after generating Mould CAD, generate CAM for die & mould, then the technical scheme that the 3rd module carries out precise evaluation is entered, so, there is the technical matters easily occurring wrinkling, drawing crack and the not enough manufacturing defect that stretches during the drawing die design efficiently solving existing automobile panel generates, so the drawing die design achieving automobile panel generate in be not easy to occur the technique effect of wrinkling, drawing crack and the not enough manufacturing defect that stretches.
In order to better understand technique scheme, below in conjunction with Figure of description and concrete embodiment, technique scheme is described in detail.
Embodiment one:
In embodiment one, provide automobile panel drawing die method for designing, please refer to Fig. 1, described method comprises:
Step 1: import part three-dimensional CAD file, carry out division network and improve network model, and entering the first module;
Step 2: hide flange, with press depth automatic decision pressing direction, set up the plane of symmetry and binder surface;
Step 3: setting punching press draft is 5 °, and pan feeding fillet 10mm, sets up process complementary surface, and sets up whole circle pressor unit;
Step 4: proceed to the second module and carry out rapid evaluation;
Step 5: after generating Mould CAD, generates CAM for die & mould, then enters the 3rd module and carry out precise evaluation.
Wherein, in the embodiment of the present application, the first module is used for generating binder surface and process complementary surface fast; Second module is used for rapid evaluation mould; 3rd module is used for precise evaluation mould.
Wherein, in the embodiment of the present application, described method also comprises step 6: design automobile panel drawing die based on most assessment result.
Wherein, in the embodiment of the present application, described three-dimensional CAD file comprises the punching press profile of part, technique is supplemented, binder surface, pan feeding fillet and punching press oblique angle data.
Wherein, in the embodiment of the present application, described design automobile panel drawing die based on most assessment result specifically comprises:
Set up the assembly structure of drawing die, in the assembly environment of UG, newly-built assembling file, creates empty part file by the method for adding New Parent;
Import die face graphic file, pressor unit 3D curve file, sheet material optimizes contour curve file, obtain die face curved surface and pressor unit curve and die face outline curve;
Projection, drawing, segmentation, shearing modeling method is adopted to carry out modeling to corresponding part;
Kinematic Simulation inspection is carried out to the drawing die completed;
Draw the assembling of drawing die and the engineering drawing of part.
Wherein, in actual applications, this part belongs to outer surface of automobile part, and faying surface is more, and surface quality requirements is high, and do not allow ripple, wrinkle, break etc. affects the defect of product quality.This part out-of-shape, long 485mm, dark 150mm, high 380mm.Another principal feature of this product is left and right part, and left and right part full symmetric.According to the feature of this part, punching press scheme is decided to be a mould double-piece, and technique is drawing, trimming and piercing die, shaping deburring incision and flange.
FEM Simulation is carried out to part drawing operation
(1) the .igs file of part is directly imported, grid division also enters DIEMAKER module, hide flange, with press depth automatic decision pressing direction, set up the plane of symmetry and binder surface, setting punching press draft is 5 °, pan feeding fillet 10mm, set up process complementary surface, and set up whole circle pressor unit, proceed to QUICKSTAMP module and enter rapid evaluation.As can be seen from the result of calculation of QUICKSTAMP, drawing periphery has local wrinkling.Amendment pressor unit, becomes two pressor unit, and removes opposite corner portions by single pressor unit.Proceed to AUTOSTAMP module, re-start precise evaluation, setting parameter is as follows:
Pressure-plate-force: 1000kN;
Friction factor: 0.12;
Equivalent drawbead friction force: Fr=0.087kM, Fo=0.065kM;
Sheet material: ST14;
Thickness: 0.8mm;
Grid subdivision: refine=3;
(2) through progressively watching computation process, this model does not produce wrinkle and fracture phenomenon in computation process.From result of calculation, its thinnest part is 0.517215mm, has no display drawing crack on FLC curve top, shows strain fully with even in strain figure, illustrates that and binder surface supplementary with this technique designed is rational.
Forward Design pattern to, export the .igs file of die face and pressor unit respectively, in order to using during designing mould in CAD.
(3) in the final step (Stateend) that AUTOSTAMP calculates, we can set up the 3D closed curve that comprises pressor unit, project on sheet material, utilize and flatten (Flattening) function, obtain the Optimal Curve of required sheet material original shape, curve is exported as .igs file.In Design of Dies, this curve available is as the reference of die face size.
The design of drawing die
(1) after determining the design proposal of drawing die by above emulation, we can therefrom obtain following data:
The .igs file of die face figure.Comprise the punching press profile of part in this file, technique is supplemented, the data such as binder surface, pan feeding fillet and punching press oblique angle, it can directly import the die face that be used as drawing die in Three-dimensional CAD Software.
The .igs file of pressor unit 3D curve.Import the reference shape curve as pressor unit in CAD, but when setting up pressor unit, the cross section profile of pressor unit must according to the overall size set up in CAE, with the consistance of the effect and calculating that ensure generation.
The .igs file of contour curve optimized by sheet material.The blanking that contour curve not only can be used for optimizing plate optimized by sheet material, also can be used as the reference of the outer profile size of binder surface.
Method for designing
Set up the assembly structure of drawing die.In the assembly environment of UG, newly-built assembling file, creates empty part file by the method for adding New Parent.
Import above three .igs files, obtain die face curved surface and pressor unit curve and die face outline curve.
The modeling methods such as projection, drawing, segmentation, shearing are adopted to carry out modeling to corresponding part.Will fully in conjunction with relevant design standards and factory's actual condition and technical merit during modeling.
Kinematic Simulation inspection is carried out to the drawing die completed.
Draw the assembling of drawing die and the engineering drawing of part.
Technical scheme in above-mentioned the embodiment of the present application, at least has following technique effect or advantage:
Have employed and automobile panel drawing die method for designing is designed to comprise: step 1: import part three-dimensional CAD file, carry out division network and improve network model, and entering the first module; Step 2: hide flange, with press depth automatic decision pressing direction, set up the plane of symmetry and binder surface; Step 3: setting punching press draft is 5 °, and pan feeding fillet 10mm, sets up process complementary surface, and sets up whole circle pressor unit; Step 4: proceed to the second module and enter rapid evaluation; Step 5: after generating Mould CAD, generate CAM for die & mould, then the technical scheme that the 3rd module carries out precise evaluation is entered, so, there is the technical matters easily occurring wrinkling, drawing crack and the not enough manufacturing defect that stretches during the drawing die design efficiently solving existing automobile panel generates, so the drawing die design achieving automobile panel generate in be not easy to occur the technique effect of wrinkling, drawing crack and the not enough manufacturing defect that stretches.
Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.

Claims (5)

1. automobile panel drawing die method for designing, is characterized in that, described method comprises:
Step 1: import part three-dimensional CAD file, carry out division network and improve network model, and entering the first module;
Step 2: hide flange, with press depth automatic decision pressing direction, set up the plane of symmetry and binder surface;
Step 3: setting punching press draft is 5 °, and pan feeding fillet 10mm, sets up process complementary surface, and sets up whole circle pressor unit;
Step 4: proceed to the second module and carry out rapid evaluation;
Step 5: after generating Mould CAD, generates CAM for die & mould, then enters the 3rd module and carry out precise evaluation.
2. automobile panel drawing die method for designing according to claim 1, is characterized in that, the first module is used for generating binder surface and process complementary surface fast; Second module is used for rapid evaluation mould; 3rd module is used for precise evaluation mould.
3. automobile panel drawing die method for designing according to claim 1, is characterized in that, described method also comprises step 6: design automobile panel drawing die based on most assessment result.
4. automobile panel drawing die method for designing according to claim 1, is characterized in that, described three-dimensional CAD file comprises the punching press profile of part, technique is supplemented, binder surface, pan feeding fillet and punching press oblique angle data.
5. automobile panel drawing die method for designing according to claim 3, is characterized in that, described design automobile panel drawing die based on most assessment result specifically comprises:
Set up the assembly structure of drawing die, in the assembly environment of UG, newly-built assembling file, creates empty part file by the method for adding New Parent;
Import die face graphic file, pressor unit 3D curve file, sheet material optimizes contour curve file, obtain die face curved surface and pressor unit curve and die face outline curve;
Projection, drawing, segmentation, shearing modeling method is adopted to carry out modeling to corresponding part;
Kinematic Simulation inspection is carried out to the drawing die completed;
Draw the assembling of drawing die and the engineering drawing of part.
CN201610102129.2A 2016-02-25 2016-02-25 Design method for automobile covering part drawing die Pending CN105574301A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610102129.2A CN105574301A (en) 2016-02-25 2016-02-25 Design method for automobile covering part drawing die

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Application Number Priority Date Filing Date Title
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Cited By (8)

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Publication number Priority date Publication date Assignee Title
CN106650051A (en) * 2016-12-06 2017-05-10 阿尔特汽车技术股份有限公司 Reverse material adding process of drawing die
CN107186092A (en) * 2017-05-31 2017-09-22 汽红塔云南汽车制造有限公司 A kind of drawing die die parting line method for determining position and calculator
CN107442650A (en) * 2017-08-29 2017-12-08 安徽江淮汽车集团股份有限公司 A kind of narrow body stamping parts forming technology and set of molds
CN108704993A (en) * 2018-05-16 2018-10-26 湖南大学 A kind of method of Automobile Cover Drawing Die bedding-in binder surface design
CN109013926A (en) * 2018-06-27 2018-12-18 西安飞机工业(集团)有限责任公司 A kind of aircraft door area stairstepping cornerite part drawing manufacturing process
CN109513813A (en) * 2018-09-27 2019-03-26 合肥百恒设备模具有限公司 A kind of auto panel punching production technique based on CAE technology
CN109877210A (en) * 2019-03-25 2019-06-14 武汉理工大学 The optimization regulating method of passenger car high intensity body side OTR Sheet Metal Forming Technology
CN111163875A (en) * 2017-09-26 2020-05-15 杰富意钢铁株式会社 Deformation limit evaluation method, fracture prediction method, and press die design method

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CN102489581A (en) * 2011-12-26 2012-06-13 江铃汽车股份有限公司 Empirical formula illustration plate for automobile covering part die drawing formation technology
CN103240336A (en) * 2013-05-10 2013-08-14 奇瑞汽车股份有限公司 Automobile single-action drawing die with nitrogen springs and prepressing device

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CN201702266U (en) * 2010-05-24 2011-01-12 湖南大学 Draw bead structure of drawing die
CN102489581A (en) * 2011-12-26 2012-06-13 江铃汽车股份有限公司 Empirical formula illustration plate for automobile covering part die drawing formation technology
CN103240336A (en) * 2013-05-10 2013-08-14 奇瑞汽车股份有限公司 Automobile single-action drawing die with nitrogen springs and prepressing device

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106650051A (en) * 2016-12-06 2017-05-10 阿尔特汽车技术股份有限公司 Reverse material adding process of drawing die
CN107186092A (en) * 2017-05-31 2017-09-22 汽红塔云南汽车制造有限公司 A kind of drawing die die parting line method for determining position and calculator
CN107442650A (en) * 2017-08-29 2017-12-08 安徽江淮汽车集团股份有限公司 A kind of narrow body stamping parts forming technology and set of molds
CN107442650B (en) * 2017-08-29 2019-04-16 安徽江淮汽车集团股份有限公司 A kind of narrow body stamping parts forming technology and set of molds
CN111163875A (en) * 2017-09-26 2020-05-15 杰富意钢铁株式会社 Deformation limit evaluation method, fracture prediction method, and press die design method
CN111163875B (en) * 2017-09-26 2021-09-07 杰富意钢铁株式会社 Deformation limit evaluation method, fracture prediction method, and press die design method
CN108704993A (en) * 2018-05-16 2018-10-26 湖南大学 A kind of method of Automobile Cover Drawing Die bedding-in binder surface design
CN109013926A (en) * 2018-06-27 2018-12-18 西安飞机工业(集团)有限责任公司 A kind of aircraft door area stairstepping cornerite part drawing manufacturing process
CN109513813A (en) * 2018-09-27 2019-03-26 合肥百恒设备模具有限公司 A kind of auto panel punching production technique based on CAE technology
CN109877210A (en) * 2019-03-25 2019-06-14 武汉理工大学 The optimization regulating method of passenger car high intensity body side OTR Sheet Metal Forming Technology

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