CN103736842B - Motor vehicle seat back side plate moulding process - Google Patents
Motor vehicle seat back side plate moulding process Download PDFInfo
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- CN103736842B CN103736842B CN201410013723.5A CN201410013723A CN103736842B CN 103736842 B CN103736842 B CN 103736842B CN 201410013723 A CN201410013723 A CN 201410013723A CN 103736842 B CN103736842 B CN 103736842B
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Abstract
Motor vehicle seat back side plate moulding process, relates to handware forming technique.Wherein overturning process comprises the following steps downwards: the first step, set up the Mathematical Modeling of corrugated regions on tablet in the drawing fillet at the drawing fillet position of tablet and lower overturning process, in this Mathematical Modeling, the size of drawing fillet is independent variable, the area of corrugated regions is dependent variable, and the area of corrugated regions is multiple son wrinkling district area sum; The data that this Mathematical Modeling is obtained by field trial are set up.Second step, the scope of the drawing fillet size determining to make the area of corrugated regions minimum by described Mathematical Modeling and optimum value.3rd step, the optimum value drawing fillet of the drawing fillet size determined by second step.4th step, along the downward flange in drawing fillet position.The present invention sets up the Mathematical Modeling of drawing fillet and corrugated regions by test, the scope of the drawing fillet size determining to make the area of corrugated regions minimum and optimum value, eliminates the wrinkling problem of product, product quality is improved greatly.
Description
Technical field
The present invention relates to handware forming technique, espespecially a kind of motor vehicle seat back side plate moulding process.
Background technology
As everyone knows, automakers numerous in world wide and mould supplier experience have widely been merged in CAE software analysis, CAE software analysis has the novelty of deforming simulation technology, solve the complicated plate Problems in forming involved by technique and Design of Dies easily, for Optimizing Process Parameters and mould structure provide very strong theoretical foundation.But, put into practice in production process and have several factors to cause production result and so perfect unlike cae analysis.Reality has the restriction of the various factors such as environment, temperature, resistance in producing.Just based on so a kind of analysis software cannot completely simulating reality produce in various correlative factor.Such as, in motor vehicle seat back side plate production process, do not reach the result of cae analysis.In overturning process and for there is wrinkling in automobile back side plate in cae analysis process.But the wrinkling resilience of the part that overturning process is produced in real production process is serious, does not reach the result of CAE institute analysis and guidance.
Divide from wrinkling Mechanics Cause, wrinkling can be divided into that compression is wrinkling, non-uniform tensile stress is wrinkling and shearing stress wrinkling etc.Compression is wrinkling is plate unstability under action of compressive stress, and the length direction of wrinkle is vertical with compression direction.The wrinkling main feature of non-uniform tensile stress is the external force suffered by plate is coaxial balancing power, but and that cause inhomogeneous deformation uneven due to tension.The wrinkling feature of shearing stress is the external force of corrugated regions is non-coaxial balancing power, produces shear stress and cause wrinkling under its effect.
Utilize in progressive die formed automobile backrest side plate actual production process, wrinkling severity in overturning process, mainly produces under shearing stress effect.Plate is in plastic history, and under being in complicated stress state, owing to expecting that the size in thick direction is compared very little with other both directions, therefore plate state is in a thickness direction least stable.When plate is subject to certain action of compressive stress, sheet thickness direction easily can not maintain stable plastic deformation and produce buckle in compression because of pressurized, cause occurring wrinkling.
Utilize in progressive die formed automobile backrest side plate actual production process wrinkling in overturning process, have a strong impact on product quality.Generally wrinkling optimization method has: the optimization that technique is supplemented; The optimization of die parting line; The selection of binder surface; The optimization of bead; Inhale the application of wrinkle muscle.These optimization methods all fail to solve the wrinkling problem of overturning process in overturning process in motor vehicle seat back side plate actual production process.
Utilize in progressive die formed automobile backrest side plate actual production technique, in the urgent need to finding a kind of method overcoming the wrinkling problem of its overturning process, to improve the quality of motor vehicle seat back side plate.
In prior art, in downward overturning process, the smallest circle angular radius at flange position is about 5.8768 millimeters, and after flange, many positions are obviously wrinkling.The Mathematical Modeling of the drawing fillet that the present invention sets up the drawing fillet position of described tablet by test and corrugated regions on tablet in lower overturning process, this Mathematical Modeling is mainly relevant with tablet material, size and drawing fillet position.The scope of the drawing fillet size described Mathematical Modeling being determined to make the area of corrugated regions minimum and optimum value.Drawing fillet is adjusted to 3.9990 millimeters (drawing fillet refers to radius) by 5.8768 millimeters, wrinklingly to be eliminated.This is the result because drawing depth obviously increases, and is turned down by drawing fillet, and corresponding drawing depth increases, and increases pressure-plate-force, makes to reduce shear stress when flange, reduces further to produce wrinkling possibility by shear stress.Thus solve the difficult problem making product seriously wrinkling by overturning process downward in progressive die formed automobile backrest side plate technique, thus product quality is improved greatly.
Summary of the invention
The technical issues that need to address of the present invention utilize to overcome the problem that in progressive die formed automobile backrest side plate technique, its overturning process is wrinkling at present, provides motor vehicle seat back side plate moulding process.Adopt this moulding process, the problem wrinkling by its overturning process in progressive die formed automobile backrest side plate technique is readily solved.
For this reason, motor vehicle seat back side plate moulding process of the present invention adopts following technical proposals.
Motor vehicle seat back side plate moulding process, comprise the first punching operation set gradually, otch operation, trimming operation, drawing operation, first idle station, downward overturning process, second idle station, side trimming, 3rd idle station, second punching operation, first hole flanging operation, side punching operation, 4th idle station, 5th idle station, 6th idle station, first side flanging operation, 7th idle station, second side flanging operation, 8th idle station, second hole flanging operation, 9th idle station, trimming and cut-out operation, each operation is realized by die unit corresponding with this procedure position on continuous mould and equipment supporting with it, first idle station, second idle station, 3rd idle station, 4th idle station, 5th idle station, 6th idle station, 7th idle station, 8th idle station, 9th idle station is all without concrete operation task, for vacating space, described equipment is installed, described continuous mould arranges the material strip of the making motor vehicle seat back side plate by constant step distance movement, locating hole predetermined in each step-length of first punching operation punching on material strip, for the location of subsequent work stations plate, otch operation is obtain shaping required tablet at material strip upper cut, and cutting retainer fillet and frenulum, trimming operation obtains shaping required tablet, drawing operation carries out sheet forming, flange position turns down by downward overturning process vertically downward, the vertical position of the downward flange of side trimming shaping, second punching operation goes out the hole on product, the aperture of the second punching operation punching is shaped according to product requirement hole flanging by the first hole flanging operation, side punching operation goes out the hole at product sidewall position, first side flanging operation, by the wall position on the left of product to horizontal direction flange, reaches product requirement, second side flanging operation, by the wall position on the right side of product to horizontal direction flange, reaches product requirement, second hole flanging operation, hole flanging is shaped, and reaches product requirement, trimming, the position of shaping first side flanging operation and the second side flanging operation, prevents distortion, cut off operation product and retainer fillet are cut off, obtain product, described downward overturning process comprises the following steps:
The first step, set up the Mathematical Modeling of corrugated regions on tablet in the drawing fillet at the drawing fillet position of described tablet and lower overturning process, in this Mathematical Modeling, the size of drawing fillet is independent variable, the area of corrugated regions is dependent variable, and the area of corrugated regions is multiple son wrinkling district area sum; The data that this Mathematical Modeling is obtained by field trial are set up;
Second step, the scope of the drawing fillet size determining to make the area of corrugated regions minimum by described Mathematical Modeling and optimum value;
3rd step, the optimum value drawing fillet of the drawing fillet size determined by second step;
4th step, along the downward flange in drawing fillet position.
Technique scheme is further elaborated:
The largest contours of the described tablet obtained by trimming operation is wide 135 millimeters, long 510 millimeters, the thickness of described tablet 1.5 millimeters.
The scope of the described drawing fillet size making the area of corrugated regions minimum is 3.5 millimeters-4.2 millimeters, and described drawing fillet refers to radius.
The described drawing fillet size optimum value making the area of corrugated regions minimum is 3.9990 millimeters, and described drawing fillet refers to radius.
Drawing fillet and downwards flange are realized by the die unit of forcing press and described downward overturning process.
The invention has the beneficial effects as follows:
Accompanying drawing explanation
Fig. 1 is present invention process schematic layout pattern (top view);
Fig. 2 is motor vehicle seat back side plate schematic perspective view;
Fig. 3 is one of station schematic diagram of lower overturning process;
Fig. 4 is the station schematic diagram two of lower overturning process;
Fig. 5 is the Mathematical Modeling of corrugated regions on tablet in the drawing fillet at drawing fillet position of the present invention and lower overturning process.
In figure: 100, motor vehicle seat back side plate product; 10, material strip; 20, retainer fillet; 30, locating hole; 40, tablet; 50, frenulum; 60, flange position; 61, drawing fillet position;
001, the first punching operation; 002, otch operation; 003, trimming operation; 004, drawing operation; 005, the first idle station; 006, downward overturning process; 007, the second idle station; 008, side trimming; 009, the 3rd idle station; 010, the second punching work; 011, the first hole flanging operation; 012, side punching operation; 013, the 4th idle station; 014, the 5th idle station; 015, the 6th idle station; 016, the first side flanging operation; 017, the 7th idle station; 018, the second side flanging operation; 019, the 8th idle station; 020, the second hole flanging operation; 021, the 9th idle station; 022, trimming; 023, operation is cut off.
Detailed description of the invention
Below, the specific embodiment of the present invention is introduced by reference to the accompanying drawings.
As shown in Figures 1 to 4, motor vehicle seat back side plate moulding process, comprises the first punching operation 001 set gradually, otch operation 002, trimming operation 003, drawing operation 004, first idle station 005, downward overturning process 006, second idle station 007, side trimming 008, 3rd idle station 009, second punching operation 010, first hole flanging operation 011, side punching operation 012, 4th idle station 013, 5th idle station 014, 6th idle station 015, first side flanging operation 016, 7th idle station 017, second side flanging operation 018, 8th idle station 019, second hole flanging operation 020, 9th idle station 021, trimming 022 and cut-out operation 023, each operation is realized by die unit corresponding with this procedure position on continuous mould and equipment supporting with it, the first idle station 005, second idle station 007, 3rd idle station 009, 4th idle station 013, 5th idle station 014, 6th idle station 015, 7th idle station 017, 8th idle station 019, 9th idle station 021 all without concrete operation task, installs described equipment for vacating space, described continuous mould arranges the material strip 10 of the making motor vehicle seat back side plate 100 by constant step distance movement, the locating hole 30 that first punching operation 001 is predetermined in each step-length of punching on material strip 10, for the location of subsequent work stations plate, otch operation 002 is for obtaining shaping required tablet 40 at material strip 10 upper cut, and cutting retainer fillet 20 and frenulum 50, trimming operation 003 obtains shaping required tablet 40, drawing operation 004 carries out sheet forming, flange position turns down by downward overturning process 006 vertically downward, the vertical position of the downward flange of side trimming 008 shaping, second punching operation 010 goes out the hole on product, the aperture of the second punching operation 010 punching is shaped according to product requirement hole flanging by the first hole flanging operation 011, side punching operation 012 goes out the hole at product sidewall position, wall position on the left of product to horizontal direction flange, is reached product requirement by the first side flanging operation 16, wall position on the right side of product to horizontal direction flange, is reached product requirement by the second side flanging operation 018, second hole flanging operation 020 hole flanging is shaped, and reaches product requirement, the position of trimming 022 shaping first side flanging operation and the second side flanging operation, prevents distortion, cut off operation 023 product and retainer fillet are cut off, obtain product, described downward overturning process 006 comprises the following steps:
The first step, set up the Mathematical Modeling of corrugated regions on tablet 40 in the drawing fillet at the drawing fillet position 61 of described tablet and lower overturning process 006, in this Mathematical Modeling, the size of drawing fillet is independent variable, the area of corrugated regions is dependent variable, and the area of corrugated regions is multiple son wrinkling district area sum; The data that this Mathematical Modeling is obtained by field trial are set up.This Mathematical Modeling is main relevant with tablet material, size and drawing fillet position.
Second step, the scope of the drawing fillet size determining to make the area of corrugated regions minimum by described Mathematical Modeling and optimum value.
3rd step, the optimum value drawing fillet of the drawing fillet size determined by second step.
4th step, along the downward flange in drawing fillet position.
The largest contours of the described tablet obtained by trimming operation 003 is wide 135 millimeters, long 510 millimeters, the thickness of described tablet 1.5 millimeters.
The scope of the described drawing fillet size making the area of corrugated regions minimum is 3.5 millimeters-4.2 millimeters, and described drawing fillet refers to radius.
The described drawing fillet size optimum value making the area of corrugated regions minimum is 3.9990 millimeters, and described drawing fillet refers to radius.
Drawing fillet and downwards flange are realized by the die unit of forcing press and described downward overturning process, forcing press 800T, the pressure 8T-10T of blank holder.
Below, concrete test and the data of the Mathematical Modeling of corrugated regions on tablet in the drawing fillet setting up the drawing fillet position of described tablet and lower overturning process are introduced.
Drawing fillet size often adjusts once, and the position of die parting line changes, and again processes blank holder and punch according to new art shapes, the pressure of blank holder is adjusted to 10T from 8T simultaneously, under the effect of 800T forcing press, carry out casting die die trial.According to the wrinkling situation of the product produced, constantly adjust fillet size.Record the data of the drawing fillet R often adjusting a size, the data of corrugated regions width W (millimeter) and corrugated regions length L (millimeter) are measured by casting die die trial, each sub-corrugated regions area S (square millimeter) equals the product of each sub-corrugated regions width W (millimeter) corrugated regions length L (millimeter) sub-with it, the area sum of each sub-corrugated regions is the area S of total corrugated regions.Set up R(thus and refer to radius) with the Mathematical Modeling of S, as following table and Fig. 5.
Embodiments of the invention just introduce its detailed description of the invention, do not lie in and limit its protection domain.The technical staff of the industry can make some amendment under the inspiration of the present embodiment, therefore all equivalences done according to the scope of the claims of the present invention change or modify, and all belong within the scope of Patent right requirement of the present invention.
Claims (5)
1. motor vehicle seat back side plate moulding process, comprise the first punching operation set gradually, otch operation, drawing operation, first idle station, downward overturning process, second idle station, side trimming, 3rd idle station, second punching operation, first hole flanging operation, side punching operation, 4th idle station, 5th idle station, 6th idle station, first side flanging operation, 7th idle station, second side flanging operation, 8th idle station, second hole flanging operation, 9th idle station, trimming and cut-out operation, each operation is realized by die unit corresponding with this procedure position on continuous mould and equipment supporting with it, first idle station, second idle station, 3rd idle station, 4th idle station, 5th idle station, 6th idle station, 7th idle station, 8th idle station, 9th idle station is all without concrete operation task, for vacating space, described equipment is installed, described continuous mould arranges the material strip of the making motor vehicle seat back side plate by constant step distance movement, locating hole predetermined in each step-length of first punching operation punching on material strip, for the location of subsequent work stations plate, otch operation is obtain shaping required tablet at material strip upper cut, and cutting retainer fillet and frenulum, trimming operation obtains shaping required tablet, drawing operation carries out sheet forming, flange position turns down by downward overturning process vertically downward, the vertical position of the downward flange of side trimming shaping, second punching operation goes out the hole on product, the aperture of the second punching operation punching is shaped according to product requirement hole flanging by the first hole flanging operation, side punching operation goes out the hole at product sidewall position, first side flanging operation, by the wall position on the left of product to horizontal direction flange, reaches product requirement, second side flanging operation, by the wall position on the right side of product to horizontal direction flange, reaches product requirement, second hole flanging operation, hole flanging is shaped, and reaches product requirement, trimming, the position of shaping first side flanging operation and the second side flanging operation, prevents distortion, cut off operation product and retainer fillet are cut off, obtain product, it is characterized in that, described downward overturning process comprises the following steps:
The first step, set up the Mathematical Modeling of corrugated regions on tablet in the drawing fillet at the drawing fillet position of described tablet and lower overturning process, in this Mathematical Modeling, the size of drawing fillet is independent variable, the area of corrugated regions is dependent variable, and the area of corrugated regions is multiple son wrinkling district area sum; The data that this Mathematical Modeling is obtained by field trial are set up;
Second step, the scope of the drawing fillet size determining to make the area of corrugated regions minimum by described Mathematical Modeling and optimum value;
3rd step, the optimum value drawing fillet of the drawing fillet size determined by second step;
4th step, along the downward flange in drawing fillet position.
2. motor vehicle seat back side plate moulding process according to claim 1, is characterized in that, the largest contours of the described tablet obtained by trimming operation is wide 135 millimeters, long 510 millimeters, the thickness of described tablet 1.5 millimeters.
3. motor vehicle seat back side plate moulding process according to claim 1, is characterized in that, the scope of the described drawing fillet size making the area of corrugated regions minimum is 3.5 millimeters-4.2 millimeters, and described drawing fillet refers to radius.
4. motor vehicle seat back side plate moulding process according to claim 3, is characterized in that, the described drawing fillet size optimum value making the area of corrugated regions minimum is 3.9990 millimeters, and described drawing fillet refers to radius.
5. motor vehicle seat back side plate moulding process according to claim 1, is characterized in that, drawing fillet and downwards flange are realized by the die unit of forcing press and described downward overturning process.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410013723.5A CN103736842B (en) | 2014-01-13 | 2014-01-13 | Motor vehicle seat back side plate moulding process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410013723.5A CN103736842B (en) | 2014-01-13 | 2014-01-13 | Motor vehicle seat back side plate moulding process |
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| CN103736842A CN103736842A (en) | 2014-04-23 |
| CN103736842B true CN103736842B (en) | 2015-11-18 |
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Families Citing this family (8)
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| CN104384341B (en) * | 2014-11-27 | 2017-01-04 | 柳州市飞歌汽车配件有限公司 | Continuous punching die for oil pipe fixing vertical plate |
| CN104785639B (en) * | 2015-04-16 | 2016-08-31 | 浙江雅虎汽车部件有限公司 | A kind of automobile rear backrest left plate progressive die |
| CN105935720B (en) * | 2016-06-28 | 2018-01-16 | 无锡诺飞高新技术有限公司 | Automotive seat lower margin continuous stamping die |
| CN105945138B (en) * | 2016-06-28 | 2017-12-19 | 无锡诺飞高新技术有限公司 | Automotive seat lower margin continuous punching method |
| CN109201878A (en) * | 2018-08-27 | 2019-01-15 | 沈阳聚和源汽车部件有限公司 | A kind of compressor of air conditioner lower margin progressive die |
| CN110899496A (en) * | 2019-12-11 | 2020-03-24 | 东莞虹日金属科技有限公司 | Backrest side plate forming die and method |
| CN114535392B (en) * | 2022-02-14 | 2024-05-03 | 一汽解放汽车有限公司 | Manufacturing method of drawing rib of drawing die and drawing die |
| CN115178660B (en) * | 2022-09-08 | 2023-01-03 | 苏州铭峰精密机械有限公司 | Forming method of sheet with lateral bulge and inclined surface |
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| JPS61279325A (en) * | 1985-06-03 | 1986-12-10 | Toyota Motor Corp | Manufacture of hollow connecting rod |
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| CN102198472A (en) * | 2011-04-08 | 2011-09-28 | 昆山荣腾模具部品制造有限公司 | Continuous stamping die |
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