CN219924308U - Draw bead structure and side wall outer plate drawing die - Google Patents
Draw bead structure and side wall outer plate drawing die Download PDFInfo
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- CN219924308U CN219924308U CN202321526892.XU CN202321526892U CN219924308U CN 219924308 U CN219924308 U CN 219924308U CN 202321526892 U CN202321526892 U CN 202321526892U CN 219924308 U CN219924308 U CN 219924308U
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- bead structure
- draw bead
- side wall
- transition
- wall outer
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- 239000011324 bead Substances 0.000 title claims abstract description 34
- 238000003825 pressing Methods 0.000 claims abstract description 35
- 239000000463 material Substances 0.000 claims abstract description 33
- 230000007704 transition Effects 0.000 claims description 53
- 238000000034 method Methods 0.000 abstract description 15
- 239000002184 metal Substances 0.000 abstract description 13
- 230000008569 process Effects 0.000 abstract description 11
- 230000007547 defect Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 6
- 238000003754 machining Methods 0.000 abstract description 2
- 238000007493 shaping process Methods 0.000 description 23
- 238000009966 trimming Methods 0.000 description 11
- 239000011265 semifinished product Substances 0.000 description 9
- 238000000465 moulding Methods 0.000 description 5
- 239000000047 product Substances 0.000 description 4
- 238000005336 cracking Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The utility model discloses a draw bead structure and a side wall outer plate drawing die, and belongs to the technical field of vehicle part machining. The draw bead structure comprises a first material pressing surface and a drawing surface, wherein the drawing surface is positioned below the first material pressing surface, the first material pressing surface is smoothly connected with the drawing surface, a convex round angle is formed at the joint of the first material pressing surface and the drawing surface, and the radius of the convex round angle is r, and r is more than or equal to 2mm and less than or equal to 5mm. Through smooth connection of the first pressing surface and the drawing surface and parameter design of the radius r of the convex circular angle, metal flow rules of the plate in the drawing forming process are well utilized, the uniformity of deformation of the plate is effectively controlled, the deformation effect of the plate is ensured, the drawing forming precision is improved, and the quality defect that the machined side wall outer plate is pulled is effectively avoided.
Description
Technical Field
The utility model belongs to the technical field of vehicle part machining, and particularly relates to a draw bead structure and a side wall outer plate drawing die.
Background
In drawing dies, particularly dies for processing a vehicle body, such as a side outer plate part of the vehicle body for mounting a rear bumper, the forming depth is large, the appearance fillet is small, deformation and feeding resistance of each part area of a plate material are uneven in the drawing forming process, and quality defects such as wrinkling, cracking, unsmooth appearance fillet and the like of a finally formed product are easy to occur.
Disclosure of Invention
The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the draw bead structure and the side wall outer plate drawing die, which well utilize the metal flow rule of the plate in the drawing forming process by smoothly connecting the first material pressing surface and the drawing surface and designing the parameter of the radius r of the convex circular angle, effectively control the deformation uniformity of the plate, ensure the deformation effect of the plate, improve the drawing forming precision and effectively avoid the quality defect of drawing crack of the processed side wall outer plate.
In a first aspect, the present utility model provides a draw bead structure comprising:
a first pressing surface;
the drawing surface is positioned below the first material pressing surface, the first material pressing surface is smoothly connected with the drawing surface, a convex round angle is formed at the joint of the first material pressing surface and the drawing surface, and the radius of the convex round angle is r which is more than or equal to 2mm and less than or equal to 5mm.
According to the drawing rib structure, the smooth connection of the first material pressing surface and the drawing surface can ensure that the metal flow is smooth in the process of drawing the plate, the radius r of the convex round corner is set between 2 and 5mm and is larger than the appearance radius of the side wall outer plate, the plate can be ensured to be stressed smoothly in the process of being drawn, the problem of overlarge local tension can not occur, and the drawing forming effect is better while the appearance round corner of the side wall outer plate is formed.
According to one embodiment of the utility model, the drawing surface comprises a main processing surface and a first transition surface, and two ends of the first transition surface are respectively and smoothly connected with the convex fillet and the main processing surface.
According to one embodiment of the utility model, the first transition surface is circular arc-shaped.
According to one embodiment of the utility model, the first material pressing surface is a plane, and the distance between the highest point of the first transition surface and the plane where the first material pressing surface is located is h, wherein h is more than or equal to 1mm and less than or equal to 3mm.
According to one embodiment of the utility model, the first transition surface comprises at least two circular arc surfaces which are sequentially and smoothly connected.
According to one embodiment of the utility model, the drawing surface further comprises a second transition surface, and one end of the second transition surface is smoothly connected with one end of the main processing surface away from the first transition surface.
According to one embodiment of the utility model, the second transition surface is circular arc-shaped.
According to one embodiment of the utility model, the second transition surface comprises at least two circular arc surfaces which are sequentially and smoothly connected.
According to one embodiment of the utility model, the length of the first material pressing surface is L1, and L1 is more than or equal to 30mm and less than or equal to 50mm.
In a second aspect, the present utility model provides a side outer panel drawing die for drawing and forming a panel material into a side outer panel, the side outer panel drawing die comprising:
the die comprises a die body and the draw bead structure, wherein the draw bead structure is arranged on the die body.
According to the drawing die for the side wall outer plate, disclosed by the utility model, through smooth connection of the first pressing surface and the drawing surface in the draw bead structure and parameter design of the radius r of the convex circular angle, the metal flow rule of the plate in the drawing forming process is well utilized, so that the deformation uniformity of the plate is effectively controlled, the deformation effect of the plate is ensured, the drawing forming precision is improved, and the quality defect of drawing crack of the processed side wall outer plate is effectively avoided.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a partial schematic view of a side gusset outer panel drawing die provided by an embodiment of the utility model;
fig. 2 is a cross-sectional view of a-a in fig. 1.
Reference numerals:
100. a draw bead structure;
110. a first pressing surface;
120. convex round corners;
130. drawing surface; 131. a main processing surface; 132. a first transition surface; 133. a second transition surface;
140. a second pressing surface;
200. a die body;
300. molding surface; 310. and (5) appearance fillets.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
The following describes a side outer panel drawing die provided in the embodiment of the utility model with reference to fig. 1 and 2, which is used for drawing and forming a plate material into a side outer panel, the side outer panel drawing die comprises a die body 200 and a draw bead structure 100, and the draw bead structure 100 is arranged on the die body 200.
It can be appreciated that the die body 200 includes a lower die and an upper die which are matched, the draw bead structure 100 is arranged on one of the upper die and the lower die, the sheet is positioned on the lower die, the sheet is pressurized and moves downwards when the upper die moves downwards until the sheet is completely attached to the lower die, and the sheet is permanently formed under the action of the draw bead structure 100 and then processed into a required semi-finished product; and trimming, shaping and other steps are carried out on the semi-finished product to obtain a final finished product (namely the side wall outer plate).
In fig. 2, the solid line indicates a cross-sectional view of the bead structure 100, and the broken line indicates a cross-sectional view of the molding structure of the side body outer panel.
In the related art, the depth of the side wall outer plate is H, the radius of the appearance fillet 310 is R, and if at least one condition of H > 25mm and R < 2mm is satisfied, quality defects such as wrinkling, cracking, non-smooth appearance fillet 310 and the like easily occur to the side wall outer plate due to uneven deformation and feeding resistance of each part area of the plate in the drawing forming process due to overlarge depth or overlarge appearance fillet 310.
In order to solve the above-mentioned problems, considering that reasonable values of parameters of the bead structure 100 and reasonable arrangement thereof are important means for controlling metal flow of a sheet material and preventing occurrence of wrinkling and cracking, as shown in fig. 1 and fig. 2, an embodiment of the present utility model provides a bead structure 100, where the bead structure 100 includes a first pressing surface 110 and a drawing surface 130.
In this embodiment, the first pressing surface 110 is a plane for conveniently positioning the plate material to form the appearance fillet 310 required by the side wall outer plate.
The drawing surface 130 is positioned below the first material pressing surface 110, the first material pressing surface 110 is smoothly connected with the drawing surface 130, a convex round angle 120 is formed at the joint of the first material pressing surface 110 and the drawing surface 130, the radius of the convex round angle 120 is r, and r is more than or equal to 2mm and less than or equal to 5mm.
In the embodiment, r is more than or equal to 3mm and less than or equal to 4mm, so that the drawing quality can be further ensured, and the occurrence of the condition of drawing crack is avoided.
In some embodiments, the drawing surface 130 is arc-shaped, which can effectively control the metal flow speed of the sheet material, reduce the inherent deformation resistance of the sheet material in the drawing surface 130, and improve the forming precision of the semi-finished product.
In the related art, in the case where a part of the side body outer panel is attached to the first press face 110 of the bead structure 100, an angle formed between the first press face 110 and the molding face 300 of the side body outer panel is β; in this embodiment, as shown in fig. 2, when a part of the side wall outer plate is attached to the first pressing surface 110, an angle formed between the first pressing surface 110 and the molding surface 300 of the side wall outer plate is α,10 ° or more and α - β or less than 20 °, so that drawing quality is ensured, occurrence of a stretch-break is avoided, and subsequent trimming, shaping and other processes are facilitated.
It can be understood that, by smooth connection of the first pressing surface 110 and the drawing surface 130, smooth and smooth metal flow in the process of drawing the plate can be ensured, and the radius r of the convex round angle 120 is set between 2mm and 5mm, which is larger than the appearance radius of the side wall outer plate, so that the plate is ensured to be stressed smoothly in the process of being drawn, the problem of overlarge local tension can not occur, and the drawing forming effect is better while the appearance round angle 310 of the side wall outer plate is ensured to be formed.
According to the draw bead structure 100 provided by the embodiment of the utility model, through smooth connection of the first material pressing surface 110 and the drawing surface 130 and parameter design of the radius r of the convex circular angle 120, the metal flow rule of the plate in the drawing forming process is well utilized, the uniformity of deformation of the plate is effectively controlled, the deformation effect of the plate is ensured, the drawing forming precision is improved, and the quality defect of drawing crack of the processed side wall outer plate is effectively avoided.
In some embodiments, the draw face 130 includes a main working face 131 and a first transition face 132, with both ends of the first transition face 132 being smoothly connected to the convex corner 120 and the main working face 131, respectively.
It can be appreciated that by providing the first transition surface 132 smoothly connected between the convex corner 120 and the main processing surface 131, the processing length of the semi-finished product in the subsequent shaping process can be effectively increased, and the shaping quality of the side wall outer panel can be ensured. It is to be understood that the length of the first transition surface 132 may be adjusted according to the size of the side wall outer panel and the standards of drawing, trimming and shaping procedures, and the embodiment is not particularly limited.
In this embodiment, the first transition surface 132 is in a circular arc shape.
It can be appreciated that when the first transition surface 132 is in a circular arc shape, the metal flow speed of the sheet material can be effectively controlled, the internal deformation resistance of the sheet material on the first transition surface 132 is reduced, and the forming precision of the semi-finished product is improved.
In this embodiment, the connection between the first transition surface 132 and the convex corner 120 forms a concave rounded corner, so as to ensure that the first transition surface 132 and the convex corner 120 are smoothly connected. It will be appreciated that the radii of the concave fillet and the first transition surface 132 may be adjusted according to the size of the side wall outer panel and the criteria of drawing, trimming, and shaping processes, and the present embodiment is not particularly limited.
In this embodiment, the distance between the highest point of the first transition surface 132 and the plane of the first pressing surface 110 is h, where h is 1 mm.ltoreq.h.ltoreq.3 mm.
It can be appreciated that, considering that the appearance fillet 310 of the side wall outer plate needs to be formed through the convex fillet 120, the appearance fillet 310 is prevented from being corrugated when the semi-product is contacted with the first transition surface 132 in the subsequent shaping process, so that the appearance fillet 310 is not smooth, the shaping quality of the side wall outer plate is affected, and the shaping quality of the appearance fillet 310 can be ensured by limiting the parameter h, and meanwhile, the draw bead structure 100 is convenient to manufacture.
In some embodiments, the first transition surface 132 comprises at least two arcuate surfaces that are smoothly connected in sequence.
It can be understood that the processing length of the semi-finished product in the subsequent shaping process can be further increased through the first transition surface 132 formed by at least two arc surfaces which are sequentially and smoothly connected, so that the shaping quality of the side wall outer plate is ensured. It is to be understood that the number of the circular arc surfaces and the size of each circular arc surface can be adjusted according to the size of the side wall outer plate and the standards of drawing, trimming, shaping and other procedures, and the embodiment is not particularly limited.
In some embodiments, the draw face 130 further includes a second transition face 133, with one end of the second transition face 133 smoothly connected to an end of the main tooling face 131 remote from the first transition face 132.
It can be appreciated that by providing the second transition surface 133 smoothly connected to the end of the main processing surface 131 far from the first transition surface 132, the processing length of the semi-finished product in the subsequent shaping process can be further increased, and the shaping quality of the side wall outer panel can be ensured. It is to be understood that the length of the second transition surface 133 may be adjusted according to the size of the side wall outer panel and the standards of drawing, trimming and shaping procedures, and the embodiment is not particularly limited.
In some embodiments, the bead structure 100 further includes a second charge level 140, and an end of the second transition surface 133 remote from the main working surface 131 is smoothly connected to the second charge level 140.
It can be appreciated that by providing the first and second press surfaces 110 and 140 on both sides of the drawing surface 130, respectively, the thickness of the middle portion of the molding surface 300 of the side outer panel can be ensured, and the drawing quality can be further ensured.
In this embodiment, the second transition surface 133 is in a circular arc shape.
It can be appreciated that when the second transition surface 133 is in a circular arc shape, the metal flow speed of the sheet material can be effectively controlled, the internal deformation resistance of the sheet material on the second transition surface 133 is reduced, and the forming precision of the semi-finished product is improved.
In this embodiment, the connection between the main processing surface 131 and the second transition surface 133 forms a concave rounded corner, so as to ensure that the processing surface and the second transition surface 133 are smoothly connected. It will be appreciated that the radii of the concave fillet and the second transition surface 133 may be adjusted according to the size of the side wall outer panel and the criteria of drawing, trimming, and shaping processes, and the present embodiment is not particularly limited.
In this embodiment, the connection between the second transition surface 133 and the second pressing surface 140 forms a concave rounded corner, so as to ensure that the second transition surface 133 and the second drawing surface 130 are smoothly connected. It will be appreciated that the radius of the reentrant corner may be adjusted according to the size of the side wall panel and the criteria of the drawing, trimming and shaping processes, and the embodiment is not particularly limited.
In some embodiments, the second transition surface 133 comprises at least two arcuate surfaces that are smoothly connected in sequence.
It can be understood that the processing length of the semi-finished product in the subsequent shaping process can be further increased through the second transition surface 133 formed by at least two arc surfaces which are sequentially and smoothly connected, so that the shaping quality of the side wall outer plate is ensured. It is to be understood that the number of the circular arc surfaces and the size of each circular arc surface can be adjusted according to the size of the side wall outer plate and the standards of drawing, trimming, shaping and other procedures, and the embodiment is not particularly limited.
In this embodiment, the length of the first pressing surface 110 is L1, and the length of the second pressing surface 140 is L2, wherein L1 is 30 mm.ltoreq.L1.ltoreq.50mm, and L2 is 30 mm.ltoreq.L2.ltoreq.50mm.
It can be appreciated that by designing the length parameters of the first pressing surface 110 and the drawing surface 130 to control the metal flowing direction of the sheet, the metal of the semi-product can be prevented from flowing to a non-processing area in the subsequent trimming and shaping process, and the shaping quality of the side wall outer plate is ensured.
In this embodiment, considering that the line length of the main processing surface 131 is related to the drawing thinning rate, the length of the forming surface 300 of the outer wall of the side wall is L3, and the length of the main processing surface 131 is L4,0 < (L3-L4)/L3 < 8%, so as to ensure that enough metal flows to the easy-to-crack area in the subsequent trimming and shaping process, and ensure the forming quality of the outer plate of the side wall.
The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present utility model may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type, and are not limited to the number of objects, such as the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
In the description of the utility model, a "first feature" or "second feature" may include one or more of such features.
In the description of the present utility model, "plurality" means two or more.
In the description of the utility model, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by another feature therebetween.
In the description of the utility model, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. The utility model provides a draw bead structure which characterized in that includes:
a first pressing surface;
the drawing surface is positioned below the first material pressing surface, the first material pressing surface is smoothly connected with the drawing surface, a convex round angle is formed at the joint of the first material pressing surface and the drawing surface, and the radius of the convex round angle is r which is more than or equal to 2mm and less than or equal to 5mm.
2. The draw bead structure according to claim 1, wherein the draw surface comprises a main processing surface and a first transition surface, and both ends of the first transition surface are smoothly connected with the convex fillet and the main processing surface, respectively.
3. The draw bead structure of claim 2, wherein the first transition surface is circular arc shaped.
4. A draw bead structure according to claim 3, wherein the first press face is a plane, and the distance between the highest point of the first transition face and the plane in which the first press face is located is h, and h is 1mm or less and 3mm or less.
5. The draw bead structure of claim 2, wherein the first transition surface comprises at least two arcuate surfaces that are sequentially smoothly connected.
6. The draw bead structure of any one of claims 2 to 5, wherein the draw face further comprises a second transition face, an end of the second transition face being smoothly connected to an end of the main working face remote from the first transition face.
7. The draw bead structure of claim 6, wherein the second transition surface is circular arc shaped.
8. The draw bead structure of claim 6, wherein the second transition surface comprises at least two arcuate surfaces that are sequentially smoothly connected.
9. The draw bead structure according to any one of claims 1 to 5, wherein the length of the first charge level is L1, and 30mm is equal to or less than L1 is equal to or less than 50mm.
10. A side wall outer plate drawing die for drawing and forming a plate material into a side wall outer plate, which is characterized by comprising a die body and the draw bead structure as claimed in any one of claims 1 to 9, wherein the draw bead structure is arranged on the die body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321526892.XU CN219924308U (en) | 2023-06-14 | 2023-06-14 | Draw bead structure and side wall outer plate drawing die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321526892.XU CN219924308U (en) | 2023-06-14 | 2023-06-14 | Draw bead structure and side wall outer plate drawing die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219924308U true CN219924308U (en) | 2023-10-31 |
Family
ID=88492508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321526892.XU Active CN219924308U (en) | 2023-06-14 | 2023-06-14 | Draw bead structure and side wall outer plate drawing die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219924308U (en) |
-
2023
- 2023-06-14 CN CN202321526892.XU patent/CN219924308U/en active Active
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