CN212070141U - A kind of automobile hair hood outer plate cover mold drawing sequence - Google Patents
A kind of automobile hair hood outer plate cover mold drawing sequence Download PDFInfo
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- 239000011324 bead Substances 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 13
- 238000003825 pressing Methods 0.000 claims abstract description 10
- 230000001105 regulatory effect Effects 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 claims 2
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000012797 qualification Methods 0.000 abstract description 2
- 238000013461 design Methods 0.000 description 7
- 230000037303 wrinkles Effects 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
本实用新型涉及模具制造技术领域，特别是涉及一种汽车发罩外板覆盖件模具拉延序，包括压板、上模、下模和拉延筋，所述的上模由凸模、导板、限位螺钉和墩死块构成，所述的下模由凸模、导板、限位螺钉和墩死块构成，所述的压板由调压块、导板和素材定位器构成，所述的拉延筋位于上模、下膜和压板上，所述的拉延筋向板料外延展呈内八字形且相交闭合，通过改变拉延筋的形状能够有效地改变材料流动方向及有效分配压板上的进料阻力，从而消除了汽车覆盖件发罩外板模具拉延序生产时所出现的起皱现象，并且不影响对板件的成形性，能够节约大量时间和成本，大大提高了生产效率，产品合格率以及安全性。
The utility model relates to the technical field of mold manufacturing, in particular to a drawing sequence of a mold for an outer panel cover of an automobile hair cover, which includes a pressing plate, an upper mold, a lower mold and a drawing bead. The limit screw and the pier block are formed. The lower die is composed of a punch, a guide plate, a limit screw and a pier block. The pressure plate is composed of a pressure regulating block, a guide plate and a material locator. The bead is located on the upper die, the lower film and the pressure plate. The draw bead extends outward to the sheet in an inward splay shape and intersects and closes. By changing the shape of the draw bead, the flow direction of the material can be effectively changed and the pressure on the platen can be effectively distributed. Feed resistance, thereby eliminating the wrinkling phenomenon that occurs during the drawing sequence production of the outer plate mold of the automobile cover, and does not affect the formability of the plate, which can save a lot of time and cost, and greatly improve the production efficiency. Product qualification rate and safety.
Description
技术领域technical field
本实用新型属于模具制造技术领域，特别是涉及一种汽车发罩外板覆盖件模具拉延序。The utility model belongs to the technical field of mold manufacturing, in particular to a mold drawing sequence for an outer plate covering part of an automobile hair hood.
背景技术Background technique
汽车车身覆盖件均系复杂的双曲面壳形薄钢板件。现代汽车外形日趋流畅和饱满，艺术性变换频繁，都给车身覆盖件冲压成形带来难度。现代汽车行驶速度愈来愈高，对车身覆盖件的成形尺寸精度要求也愈来愈高，更加增大了车身覆盖件冲压成形的难度。冲压成形汽车车身覆盖件是采用压力机上安装大型冲模，通过冲裁展开料，拉延成形，修边冲孔，翻边整形等程序冲压而成。在汽车覆盖件成形过程中，由于各个部分变形情况复杂，板料流动速度不一致,易出现拉裂，起皱等现象，另外覆盖件还有很高的质量和强度要求，因此需要在凹模周围布置拉延筋来改善覆盖件的成形质量。拉延筋的设计占有非常重要的地位，因为覆盖件的拉延成形需要一定大小且沿周边适当分布的拉力，这种拉力来自冲压设备的作用力、毛坯的变形抗力和压料面的作用力。而压料面的作用力只靠在压边力作用下模具和材料之间的摩擦力往往是不够的，需要在压料面上设置能产生很大阻力的拉延筋以满足毛坯塑性变形和塑性流动的要求。同时利用拉延筋可以在较大的范围里控制变形区毛坯的变形大小和形变分布，抑制破裂，起皱，形面畸变等多种冲压质量问题的产生。现有的拉延筋设置形状作用于发罩外板模具时会产生起皱或起皱趋势，若增加拉延筋系数减缓起皱趋势的话，别处又会有开裂风险，若运用现场调试来解决设计上不完善的区域，又会浪费大量人力以及时间的成本。随着现代制造技术的快速发展，凭借以往固有的经验设计拉延筋，依靠反复修改和现场调试的方法已经难以适应模具快速设计的时间周期要求。因此现有技术当中亟需要一种新型的技术方案来解决这一问题。The car body panels are all complex hyperboloid shell-shaped sheet steel parts. The appearance of modern cars is becoming smoother and fuller, and the artistic changes are frequent, which brings difficulties to the stamping and forming of body panels. The driving speed of modern automobiles is getting higher and higher, and the requirements for the forming dimensional accuracy of body panels are also higher and higher, which increases the difficulty of stamping and forming of body panels. Stamping and forming of automobile body cover parts is made by installing a large die on a press, and stamping it through procedures such as punching and unfolding, drawing, trimming and punching, and flanging shaping. In the forming process of automobile cover parts, due to the complex deformation of each part, the flow speed of the sheet material is inconsistent, and it is easy to crack, wrinkle and other phenomena. In addition, the cover parts have high quality and strength requirements, so it is necessary to surround the die. Drawbeads are arranged to improve the forming quality of the cover. The design of the draw bead occupies a very important position, because the drawing and forming of the cover requires a certain amount of pulling force that is properly distributed along the periphery. This pulling force comes from the force of the stamping equipment, the deformation resistance of the blank and the force of the binder surface. . However, the force of the binder surface only depends on the friction force between the mold and the material under the action of the blank holder force. plastic flow requirements. At the same time, the use of drawbeads can control the deformation size and deformation distribution of the blank in the deformation zone in a large range, and suppress the occurrence of various stamping quality problems such as cracking, wrinkling, and shape distortion. The existing drawbead setting shape will cause wrinkling or wrinkling when it acts on the outer plate mold of the hair cover. If the drawbead coefficient is increased to slow down the wrinkling trend, there will be a risk of cracking elsewhere. If on-site debugging is used to solve the problem Areas with imperfect design will waste a lot of manpower and time. With the rapid development of modern manufacturing technology, it is difficult to adapt to the time cycle requirements of rapid mold design by relying on the inherent experience of the past to design drawbeads, and relying on repeated modification and on-site debugging. Therefore, there is an urgent need for a new technical solution in the prior art to solve this problem.
实用新型内容Utility model content
针对现有技术的不足，本实用新型提供一种汽车发罩外板覆盖件模具拉延序，可有效解决现有拉延筋设置形状作用于发罩外板模具时所产生的起皱或起皱趋势。Aiming at the deficiencies of the prior art, the utility model provides a drawing sequence of a mold for the outer panel cover of an automobile hair cover, which can effectively solve the wrinkling or wrinkling caused when the shape of the existing drawing bead acts on the outer panel mold of the hair cover. wrinkle trend.
本实用新型解决技术问题所采用的技术方案是，一种汽车发罩外板覆盖件模具拉延序，包括压板、上模、下模和拉延筋，所述的上模由凸模、导板、限位螺钉和墩死块构成，所述的下模由凹模、导板、限位螺钉和墩死块构成，所述的压板由调压块、导板和素材定位器构成，所述的拉延筋位于上模、下模和压板上。The technical solution adopted by the utility model to solve the technical problem is that a drawing sequence of a mold for an outer panel cover of an automobile hair cover includes a pressing plate, an upper mold, a lower mold and a drawing bead, and the upper mold is composed of a punch, a guide plate , Limit screw and pier block, the lower die is composed of a concave die, a guide plate, a limit screw and a pier block, the pressure plate is composed of a pressure regulating block, a guide plate and a material locator, the pull The bead is located on the upper die, lower die and platen.
进一步地，所述的拉延筋向板料外延展呈内八字形且相交闭合。Further, the drawbeads extend outwardly of the sheet material in a figure-eight shape and intersect and close.
进一步地，所述的压板上的拉延筋高度为10mm，宽度为5mm，半径为 1.5mm。Further, the height of the drawbead on the pressing plate is 10mm, the width is 5mm, and the radius is 1.5mm.
进一步地，所述的上模上的拉延筋高度为10mm，宽度为5mm，半径为 1.5mm。Further, the height of the draw bead on the upper die is 10mm, the width is 5mm, and the radius is 1.5mm.
进一步地，所述的下模上的拉延筋高度为10mm，宽度为5mm，半径为 1.5mm。Further, the height of the draw bead on the lower die is 10mm, the width is 5mm, and the radius is 1.5mm.
通过上述设计方案，本实用新型可以带来如下有益效果：本实用新型通过改变拉延筋的形状能够有效地改变材料流动方向及有效分配压板上的进料阻力，从而消除了汽车覆盖件发罩外板模具拉延序生产时所出现的起皱现象，并且不影响对板件的成形性，能够节约大量时间和成本，大大提高了生产效率，产品合格率以及安全性。Through the above-mentioned design scheme, the utility model can bring the following beneficial effects: the utility model can effectively change the material flow direction and effectively distribute the feeding resistance on the pressing plate by changing the shape of the drawbead, thereby eliminating the automobile cover part hair cover The wrinkling phenomenon that occurs when the outer plate mold is drawn and produced does not affect the formability of the plate, which can save a lot of time and cost, and greatly improve the production efficiency, product qualification rate and safety.
附图说明Description of drawings
图1为本实用新型汽车发罩外板覆盖件模具拉延序上模俯视图。FIG. 1 is a top view of the upper die in the drawing sequence of the mold for the outer panel cover of the automobile hair hood of the present invention.
图2为本实用新型汽车发罩外板覆盖件模具拉延序上模左视图。Fig. 2 is the left side view of the upper die in the drawing sequence of the mold for the outer panel cover of the automobile hair hood of the present invention.
图中：1、压板，2、拉延筋。In the picture: 1. Press plate, 2. Drawbead.
具体实施方式Detailed ways
为了使本实用新型的目的、技术方案及优点更加清楚明白，以下结合实施例，对本实用新型进行进一步详细说明，应当理解，此处所描述的具体实施例仅用以解释本实用新型，并不用于限定本实用新型。In order to make the purpose, technical solutions and advantages of the present utility model more clearly understood, the present utility model will be described in further detail below in conjunction with the embodiments. It should be understood that the specific embodiments described here are only used to explain the present utility model, not for Limit this utility model.
如图1和图2所示，一种汽车发罩外板覆盖件模具拉延序，包括压板、上模、下模和拉延筋，所述的上模由凸模、导板、限位螺钉和墩死块构成，所述的下模由凹模、导板、限位螺钉和墩死块构成，所述的压板由调压块、导板和素材定位器构成，所述的拉延筋位于上模、下模和压板上。As shown in Figures 1 and 2, a drawing sequence of a mold for an automobile hair cover outer panel cover includes a pressing plate, an upper mold, a lower mold and a drawing bead, and the upper mold is composed of a punch, a guide plate, and a limit screw. It is composed of a die block, the lower die is composed of a concave die, a guide plate, a limit screw and a die block, the pressure plate is composed of a pressure regulating block, a guide plate and a material locator, and the drawbead is located on the upper Die, lower die and platen.
进一步地，所述的拉延筋向板料外延展呈内八字形且相交闭合。Further, the drawbeads extend outwardly of the sheet material in a figure-eight shape and intersect and close.
进一步地，所述的压板上的拉延筋高度为10mm，宽度为5mm，半径为 1.5mm。Further, the height of the drawbead on the pressing plate is 10mm, the width is 5mm, and the radius is 1.5mm.
进一步地，所述的上模上的拉延筋高度为10mm，宽度为5mm，半径为 1.5mm。Further, the height of the draw bead on the upper die is 10mm, the width is 5mm, and the radius is 1.5mm.
进一步地，所述的下模上的拉延筋高度为10mm，宽度为5mm，半径为 1.5mm。Further, the height of the draw bead on the lower die is 10mm, the width is 5mm, and the radius is 1.5mm.
通过运用Auto-form进行仿真分析查看模拟结果，通过分析起皱原因对拉延筋进行设计变更，将弧形拉延筋起皱处做成向板料外延展形状并做成接口闭合，主要是为了让板料走料更均匀，防止材料堆叠起皱，防止材料进入凹模腔内材料过多变成的皱纹，防止在不均匀的拉伸部位失稳从而产生皱纹。通过对比两次分析结果可以看到，将拉延筋形状设计更改后的起皱趋势几近于没有，成形性，减薄率，主应变等也无影响。By using Auto-form to conduct simulation analysis to check the simulation results, to change the design of the drawbead by analyzing the cause of wrinkling, to make the wrinkled part of the arc-shaped drawbead into the shape of extension to the sheet metal and to make the interface closed, mainly: In order to make the sheet feeding more uniform, prevent the material from stacking and wrinkling, prevent the material from entering the cavity of the die, and prevent the wrinkle caused by the instability of the uneven stretching part. By comparing the two analysis results, it can be seen that the wrinkling trend after changing the shape design of the drawbead is almost non-existent, and the formability, thinning rate, principal strain, etc. have no effect.
其中，以上所述仅为本实用新型的一种实施例，并不用以限制本实用新型，凡在本实用新型的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本实用新型的保护范围内。Wherein, the above is only an embodiment of the present utility model, and is not intended to limit the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall include within the scope of protection of the present invention.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113579046A (en) * | 2021-06-18 | 2021-11-02 | 柳州职业技术学院 | Method for molding drawing technical surface of outer plate of front side wall of automobile |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113579046A (en) * | 2021-06-18 | 2021-11-02 | 柳州职业技术学院 | Method for molding drawing technical surface of outer plate of front side wall of automobile |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A drawing sequence for the mold of an automobile hood outer panel cover Effective date of registration: 20231222 Granted publication date: 20201204 Pledgee: Industrial and Commercial Bank of China Limited Liaoyuan Branch Pledgor: GZ TOOLING GROUP AUTOMOBILE TECHNOLOGY Co.,Ltd. Registration number: Y2023220000143 |
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Granted publication date: 20201204 Pledgee: Industrial and Commercial Bank of China Limited Liaoyuan Branch Pledgor: GZ TOOLING GROUP AUTOMOBILE TECHNOLOGY Co.,Ltd. Registration number: Y2023220000143 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A drawing sequence for a car hood outer panel cover mold Granted publication date: 20201204 Pledgee: Industrial and Commercial Bank of China Limited Liaoyuan Branch Pledgor: GZ TOOLING GROUP AUTOMOBILE TECHNOLOGY Co.,Ltd. Registration number: Y2024220000189 |