CN101856698B - Door inner panel lower part and manufacturing method thereof - Google Patents
Door inner panel lower part and manufacturing method thereof Download PDFInfo
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- CN101856698B CN101856698B CN 201010177073 CN201010177073A CN101856698B CN 101856698 B CN101856698 B CN 101856698B CN 201010177073 CN201010177073 CN 201010177073 CN 201010177073 A CN201010177073 A CN 201010177073A CN 101856698 B CN101856698 B CN 101856698B
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 238000007789 sealing Methods 0.000 claims abstract description 54
- 238000000034 method Methods 0.000 claims abstract description 22
- 239000007788 liquid Substances 0.000 claims description 14
- 230000002950 deficient Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000004080 punching Methods 0.000 description 5
- 238000000576 coating method Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- 238000007652 sheet-forming process Methods 0.000 description 1
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Abstract
The invention relates to a door inner panel lower part and a manufacturing method thereof. A groove is formed on the inner side at a doorway sealing area (A); local dimensions of the part are constrained; a step is arranged between a side wall sealing area (B) and a hem flange area (C); on the premise of ensuring the functions of the part, the process is satisfied and the part quality is improved by constraining the local dimensions of the part and arranging the groove and the step.
Description
Technical field
The present invention relates to automobile body-in-white Element Design field, particularly relate to the analysis of automobile body-in-white sheet-metal formed and stamped, be specifically related to a kind of door inner panel lower part and manufacture method thereof.
Background technology
Along with the continuous progress of automobile industry, people require more and more to automobile function, and more and more higher to the surface quality of workpieces requirement, this just requires the designer to improve constantly the design and processes level.Door accessories mostly is contained on the inner panel, to having relatively high expectations of inner plate of car door strength and stiffness.The overall drawing depth of door inner plate part is larger, and the loudspeaker bottom is because there is wrinkling and cracking phenomena simultaneously in cup-shaped drawing.The profile in door opening and side panel sealing zone (part shape is seen shown in Fig. 1 dashed region) needs and the sealing strip assembling, and the sealing surface required precision is high; Sealing surface belongs to the B face in vehicle body, do not allowed open defect.The door inner panel of different automobile types, have because of unreasonable structure, cause complex process, die cost is high, part quality is poor, affects the construction cycle of car load.The below simply describes the structural design of some inner plate parts of some vehicle.
1, take the AXX vehicle as example, the section line of part correspondence position A-A is as shown in Figure 2: above the door opening sealing area (A) step is arranged, when once drawing, plate contact sequencing is inconsistent, a-quadrant contact plate is slower, after being drawn into the end, the plate of a-quadrant still is out of shape insufficient, even can produce waviness phenomena.During secondary drawing, the plate of a-quadrant, easily down sliding causes step and a-quadrant to pull distortion.
2, take the BXX vehicle as example, the section line of part correspondence position A-A as shown in Figure 3: the step of side panel sealing zone (B) is wider, reaches 49mm.Design is when drawing die face, die parting line from the sidewall of a-quadrant away from, the plate of middle overhanging portion is more, has serious wrinkling in the forming process.These defectives are retained in the B zone, can't eliminate, and affect outward appearance and sealing effectiveness.
3, take the MXX vehicle as example, the section line of part correspondence position A-A as shown in Figure 4: the degree of depth between side panel sealing zone (B) and the bound edge flange (C) is above 20mm, and in order to guarantee abundant drop liquid, drop liquid hole is designed between sidewall and C.Drop liquid hole adopts side blow to finish, and punching burr is large, affects the quality of part.The use of wedge has increased the cost of mould.
4, take the SXX vehicle as example, the section line of part correspondence position A-A as shown in Figure 5: the door inner panel bound edge flange (C) width narrower (4.5mm), during bound edge roller and drop liquid hole step the interference; Glue is smeared inhomogeneously behind the gluing, is deposited in interior panel area, affects presentation quality; Door inner and outer plates pressing region area less (3.0mm), the inner panel outside plate that easily comes off has increased the debugging amount of bound edge, affects intensity and outward appearance.
In sum, there is following technical problem in the prior art: the wrinkling distortion in (1) door opening sealing area and side panel sealing zone; (2) reduce technology difficulty, shorten the die debugging amount; (3) control of die cost, the raising of part strength.
Summary of the invention
The object of the present invention is to provide a kind of door inner panel lower part and manufacture method thereof, in door opening sealing area (A) inboard, increase a groove; The parts locally size is retrained; Between side panel sealing zone (B) and bound edge flange region (C), increase a step, guarantee under the part function prerequisite, by the parts locally size is retrained, increase groove and step, satisfy technique, improve part quality.
Being designed to of groove: at first that A is inboard toward below-center offset 3mm; The width design of B is 8-20mm; The width design of C is 12mm; When the width of B surpassed 15mm above the degree of depth between 20mm, B and the C, between B and C, increase a step: the angle of step and B was greater than 95 °, and the width of step is greater than 8mm, and the degree of depth of step and C is controlled at 6-15mm, preferred 6mm; In the up and down fillet root design drop liquid hole of step, drop liquid hole adopts positive punching to finish.
Concrete technical scheme is as follows:
A kind of manufacture method of door inner panel lower part, adopt following steps:
(1) in the inboard of the door opening sealing area (A) of door inner panel, a groove (1) with the degree of depth (D1) is set;
(2) between the side panel sealing zone (B) and bound edge flange region (C) of door inner panel, a step (2) with the degree of depth (D2) is set.
Further, in the step (1), the inboard biased downward 3mm of described door opening sealing area (A) forms described groove (1).
Further, in the step (2), when the degree of depth between side panel sealing zone (B) and the bound edge flange region (C) surpasses 20mm, design described step (2) between side panel sealing zone (B) and bound edge flange region (C).
Further, in the step (2), when the width in side panel sealing zone (B) surpasses 15mm above the degree of depth between 20mm and side panel sealing zone (B) and the bound edge flange region (C), between side panel sealing zone (B) and bound edge flange region (C), increase described step (2), wherein the angle in step (2) and side panel sealing zone (B) is greater than 95 °, and the width of step (2) is greater than 8mm.
Further, the degree of depth of described step (2) is 6-15mm.
Further, the degree of depth of described step (2) is 6mm.
Further, the width design in described side panel sealing zone (B) is 8-20mm.
Further, the width design of described bound edge flange region (C) is 12mm.
Further, described step (2) forms drop liquid hole in fillet root employing square impact hole up and down.
The door inner panel lower part that said method is made, comprise door opening sealing area (A), side panel sealing zone (B) and bound edge flange region (C), further, the inboard of described door opening sealing area (A) is provided with have the degree of depth groove (1) of (D1), is provided with have the degree of depth step (2) of (D2) between described side panel sealing zone (B) and the bound edge flange region (C).
Adopt method proposed by the invention, not only can solve above-described defective, and under the prerequisite that guarantees product quality, the increase of groove and step makes the Rigidity and strength of door all obtain increasing.
Description of drawings
Fig. 1: door inner panel schematic diagram;
Fig. 2: existing door inner panel is not with the groove schematic diagram;
Fig. 3: the wide schematic diagram of side panel sealing face of existing door inner panel;
Fig. 4: existing door inner panel adopts side blow drop liquid hole schematic diagram;
Fig. 5: the narrow schematic diagram of bound edge flange of existing door inner panel;
Fig. 6: the door inner panel lower part design parameter figure that the present invention recommends;
Among the figure:
Fig. 2:
13: step
A: door opening sealing area
Fig. 3:
A: door opening sealing area
B: side panel sealing zone
12：49mm
Fig. 4:
B: side panel sealing zone
C: bound edge flange region
3: drop liquid hole (side blow)
Fig. 5:
4: the door inner panel
5: external door panel
6: pressing zone: 3.0mm
7: width: 4.5mm
C: bound edge flange
Fig. 6:
A: door opening sealing area
B: side panel sealing zone
C: bound edge flange region
1: groove
2: step
3: drop liquid hole
8: width: 8-20mm
9: step width: greater than 8mm
10: width: 12mm
11: angle: greater than 95deg
D1: the degree of depth: 3mm
D2: the degree of depth: 6-15mm
The specific embodiment
The below describes the present invention with reference to the accompanying drawings, and it is a kind of preferred embodiment in the numerous embodiments of the present invention.
As shown in Figure 6, with the inboard biased downward 3mm of door opening sealing area (A), form a groove.The increase of groove, in the time of can guaranteeing once to be drawn into the end, the door opening sealing area produces sufficient plastic deformation; When avoiding secondary drawing, the plate down sliding.The increase of groove has not only guaranteed the sealing effectiveness of sealing area, has improved simultaneously the presentation quality of door opening sealing area.
The slab integral drawing depth is large in the door, and sidewall ftractures easily during shaping; Two corners of door inner panel lower are because cup-shaped drawing is wrinkling easily in the sheet forming process.Side panel sealing zone (B) is wide, when die face is drawn in design, die parting line from the sidewall of A away from, the plate of middle overhanging portion is more, wrinkling is serious, causes the plate flow difficulties, the sidewall cracking.These defectives are retained on the part, affect sealing effectiveness and presentation quality.Wrinkling in order to reduce, design is when drawing die face, allows the sidewall of die parting line near A as far as possible.In order to improve the rigidity of car load, B needs certain width.Consider that domestic existing sealing strip width is generally less than 20mm, recommend the width design of B at 8-20mm.This parameter designing has guaranteed the quality of part under the prerequisite that satisfies part strength and function.
When the bound edge flange width (C) of inner plate of car door is excessive, the flange intensity difference, resilience is serious, and the defective of inner panel directly has influence on outside plate behind the bound edge, has reduced outward appearance and the quality of outside plate; Bound edge flange width is narrow, and the pressing zone of external door panel and door inner panel is less than normal, the inner panel bad phenomenon such as outside plate, glue coating accumulation that come off occur.Not only increase the debugging amount of bound edge, also had influence on the intensity of part.For fear of defects, recommending the parameter designing of C is 12mm.
When the degree of depth between B and the C surpassed 20mm, the drop liquid hole of door inner panel lower adopted side punching to finish, and has increased the cost of mould.In order to satisfy the drop liquid effect of coating process, the distance between door inner panel and the external door panel is greater than 6mm.When the degree of depth between B and the C surpasses 20mm, step of design between the two, the degree of depth recommendation of step is at 6-15mm, preferred 6mm.The drop liquid hole design of door inner panel lower adopts positive punching to finish at the up and down fillet root of step on the technique.In order to guarantee the punching condition, the width of step is greater than 8mm.This parameter designing is satisfying under the prerequisite of coating process, reduces die cost, reduces the shaping amount of secondary drawing, strengthens the rigidity of part, has guaranteed part quality.
By software AUTOFORM and the PAMSTAMP forming Analysis to part, in conjunction with the condition of production of tens sections of vehicles of company, find that the intrinsic defective of numerous parts is all caused by irrational mix.The design of part irrational mix, technique is ensured the quality of products very much, not only causes mould structure complicated, and cost increases, and also causes the part scrappage high.Utilize the optimum of analysis software opposite house inner plate structure, defective and measures to rectify and reform in conjunction with on-the-spot part, now recommended above structural design of fittings method, this design is guaranteeing under the part function prerequisite, improved the quality of part, optimize process program, reduced the expense of mould, shortened the cycle of car load exploitation.
The above has carried out exemplary description to the present invention by reference to the accompanying drawings; obviously specific implementation of the present invention is not subjected to the restriction of aforesaid way; as long as the various improvement of having adopted method design of the present invention and technical scheme to carry out; or directly apply to other occasion without improvement, all within protection scope of the present invention.
Claims (7)
1. the manufacture method of a door inner panel lower part is characterized in that, adopts following steps:
(1) in the inboard of the door opening sealing area (A) of door inner panel, a groove (1) with the degree of depth (D1) is set;
(2) between the side panel sealing zone (B) and bound edge flange region (C) of door inner panel, a step (2) with the degree of depth (D2) is set; When the width in side panel sealing zone (B) surpasses 15mm above the degree of depth between 20mm and side panel sealing zone (B) and the bound edge flange region (C), between side panel sealing zone (B) and bound edge flange region (C), increase described step (2), wherein the angle in step (2) and side panel sealing zone (B) is greater than 95 °, and the width of step (2) is greater than 8mm.
2. the manufacture method of door inner panel lower part as claimed in claim 1 is characterized in that in the step (1), the inboard biased downward 3mm of described door opening sealing area (A) forms described groove (1).
3. the manufacture method of door inner panel lower part as claimed in claim 1 is characterized in that the degree of depth of described step (2) is 6-15mm.
4. the manufacture method of door inner panel lower part as claimed in claim 3 is characterized in that the degree of depth of described step (2) is 6mm.
5. such as the manufacture method of door inner panel lower part as described in claim 1 or 4, it is characterized in that the width design of described bound edge flange region (C) is 12mm.
6. such as the manufacture method of door inner panel lower part as described in claim 1 or 4, it is characterized in that described step (2) up and down fillet root adopts the square impact hole to form drop liquid hole.
7. door inner panel lower part that adopts the described method of claim 1-6 to make, comprise door opening sealing area (A), side panel sealing zone (B) and bound edge flange region (C), it is characterized in that, the inboard of described door opening sealing area (A) is provided with have the degree of depth groove (1) of (D1), is provided with have the degree of depth step (2) of (D2) between described side panel sealing zone (B) and the bound edge flange region (C).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010177073 CN101856698B (en) | 2010-04-30 | 2010-04-30 | Door inner panel lower part and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010177073 CN101856698B (en) | 2010-04-30 | 2010-04-30 | Door inner panel lower part and manufacturing method thereof |
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| CN101856698A CN101856698A (en) | 2010-10-13 |
| CN101856698B true CN101856698B (en) | 2013-01-02 |
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| CN 201010177073 Active CN101856698B (en) | 2010-04-30 | 2010-04-30 | Door inner panel lower part and manufacturing method thereof |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101982328A (en) * | 2010-10-19 | 2011-03-02 | 奇瑞汽车股份有限公司 | Automobile door internal plate understructure |
| CN103600006B (en) * | 2013-11-25 | 2016-04-20 | 天津津荣天宇精密机械股份有限公司 | Automobile volume circle part forming methods |
| CN110576103A (en) * | 2018-06-08 | 2019-12-17 | 标致雪铁龙汽车股份有限公司 | Forming method of vehicle body side wall structure, vehicle body side wall structure and vehicle |
| CN110695177A (en) * | 2019-10-18 | 2020-01-17 | 芜湖创挚汽车科技有限公司 | Processing method for preventing stretching, stamping and wrinkling at corners of inner door panel |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6171419B1 (en) * | 1997-06-17 | 2001-01-09 | Magna Interior Systems Inc. | Apparatus and method for forming an interior panel for a vehicle |
| JP3280932B2 (en) * | 1999-04-14 | 2002-05-13 | オーエム工業株式会社 | Car door |
| KR20070039682A (en) * | 2005-10-10 | 2007-04-13 | 기아자동차주식회사 | Mounting structure for door module of vehicle |
| JP2008030631A (en) * | 2006-07-28 | 2008-02-14 | Toyota Motor Corp | Vehicle body side part structure |
| CN101439376A (en) * | 2007-11-22 | 2009-05-27 | 比亚迪股份有限公司 | Additional method of draw-bead technique for corner part of external covering of vehicle |
| CN101633017A (en) * | 2009-08-04 | 2010-01-27 | 山东潍坊福田模具有限责任公司 | Punching method for preventing plate corner part in car door from wrinkling |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5873420A (en) * | 1981-10-26 | 1983-05-02 | Nissan Motor Co Ltd | Mounting construction of rear lower sash of door for automobile |
| JPS58185317A (en) * | 1982-04-24 | 1983-10-29 | Nissan Motor Co Ltd | Car door |
-
2010
- 2010-04-30 CN CN 201010177073 patent/CN101856698B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6171419B1 (en) * | 1997-06-17 | 2001-01-09 | Magna Interior Systems Inc. | Apparatus and method for forming an interior panel for a vehicle |
| JP3280932B2 (en) * | 1999-04-14 | 2002-05-13 | オーエム工業株式会社 | Car door |
| KR20070039682A (en) * | 2005-10-10 | 2007-04-13 | 기아자동차주식회사 | Mounting structure for door module of vehicle |
| JP2008030631A (en) * | 2006-07-28 | 2008-02-14 | Toyota Motor Corp | Vehicle body side part structure |
| CN101439376A (en) * | 2007-11-22 | 2009-05-27 | 比亚迪股份有限公司 | Additional method of draw-bead technique for corner part of external covering of vehicle |
| CN101633017A (en) * | 2009-08-04 | 2010-01-27 | 山东潍坊福田模具有限责任公司 | Punching method for preventing plate corner part in car door from wrinkling |
Non-Patent Citations (2)
| Title |
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| 吴磊，等.后内门板零件二次成形缺陷与改进.《塑性工程学报》.2008,第15卷(第6期),34-37. * |
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| CN101856698A (en) | 2010-10-13 |
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