CN117444035A - Floating forming mechanism and method for controlling sliding of edge line of fender - Google Patents
Floating forming mechanism and method for controlling sliding of edge line of fender Download PDFInfo
- Publication number
- CN117444035A CN117444035A CN202311513204.0A CN202311513204A CN117444035A CN 117444035 A CN117444035 A CN 117444035A CN 202311513204 A CN202311513204 A CN 202311513204A CN 117444035 A CN117444035 A CN 117444035A
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- China
- Prior art keywords
- forming mechanism
- floating
- lower die
- fender
- insert
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- 230000007246 mechanism Effects 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 20
- 230000008602 contraction Effects 0.000 claims abstract description 4
- 238000000465 moulding Methods 0.000 claims description 14
- 238000007493 shaping process Methods 0.000 claims description 6
- 230000001502 supplementing effect Effects 0.000 claims description 4
- 230000000295 complement effect Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 239000011324 bead Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/20—Deep-drawing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/88—Making other particular articles other parts for vehicles, e.g. cowlings, mudguards
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The invention provides a floating forming mechanism applied to a lower die, which comprises a forming insert, wherein the forming insert is connected with a sliding block, and one end of the sliding block, which is far away from the forming insert, is connected with a telescopic driving assembly arranged on the lower die. The bottom of the sliding block is provided with four groups of top blocks, the four groups of top blocks are respectively arranged at four corners of the bottom end of the sliding block, the lower die is provided with a plurality of round holes, and the distance between every two adjacent top blocks is equal to that between every two adjacent round holes. A method for controlling fender edge slip using a floating forming mechanism, comprising the steps of: s1, installing a floating forming mechanism: the floating forming mechanism is arranged in a lower die extension complementary surface area at a position where a sliding line is easy to generate on a fender part, so that a top block of the floating forming mechanism is inserted into a die cavity of the lower die and is connected with an air cushion ejector rod in the die cavity, and up-and-down reciprocating motion is completed through the expansion and the contraction of the air cushion ejector rod; s2, the floating forming mechanism firstly contacts the plate material; s3, forming the part.
Description
Technical Field
The invention belongs to the technical field of automobile panel manufacturing, and particularly relates to a floating forming mechanism and a method for controlling the sliding of a fender crest line.
Background
When the automobile fender slides on the convex mold ridge line in the forming process, a visual or oilstone-visible double line shape (a visible strip-shaped curve) appears on the final product, and the visual defect is called a sliding line. Slip lines are a common surface defect in the stamping production of automotive outer covers, and the appearance of the slip lines severely affects the surface quality and product appearance of the stamping.
In drawing and forming a fender panel, slippage is often generated at a main ridge line due to uneven inflow of material. In the prior art, slip is improved by drawing bead resistance, stamping direction optimization, complementary modeling optimization and the like. But the effects can be achieved only by adjusting the stamping direction through adjusting the resistance of the draw beads and optimizing and supplementing the molding effect, so that the height difference is very large, the lateral force is very large, the mass production of the parts is unstable, and the production beat of the die is influenced.
Disclosure of Invention
In view of the above problems, the present invention provides a floating forming mechanism and a method for controlling the sliding of a fender crest line, which aims to: the contact stress of the fender edge line is reduced, and the slippage of the fender edge line is further reduced.
The technical scheme adopted by the invention is as follows:
the floating forming mechanism comprises a forming insert, wherein the forming insert is connected with a sliding block, and one end, far away from the forming insert, of the sliding block is connected with a telescopic driving assembly arranged on the lower die.
The bottom of the sliding block is provided with four groups of top blocks, the four groups of top blocks are respectively arranged at four corners of the bottom end of the sliding block, the lower die is provided with a plurality of round holes, and the distance between every two adjacent top blocks is equal to that between every two adjacent round holes.
The side of the sliding block is provided with a guide plate, and the guiding direction of the guide plate is consistent with the advancing direction of the sliding block.
And a limiting plate is arranged at one end of the sliding block, which is far away from the forming insert.
The telescopic driving component is an air cushion ejector rod.
A method for controlling fender edge slip using a floating forming mechanism, comprising the steps of:
s1, installing a floating forming mechanism: the floating forming mechanism is arranged in a lower die extension complementary surface area at a position where a sliding line is easy to generate on a fender part, so that a top block of the floating forming mechanism is inserted into a die cavity of the lower die and is connected with an air cushion ejector rod in the die cavity, and up-and-down reciprocating motion is completed through the expansion and the contraction of the air cushion ejector rod;
s2, the floating forming mechanism firstly contacts the plate material: jacking the molding insert to the highest position through an air cushion ejector rod;
s3, forming a part: the molding insert profile of the floating molding mechanism is in contact with the plate material in advance, the ridge profile area of the male mold fender is in contact with the plate material later, and the floating molding mechanism gradually falls along with the molding of the plate material.
The S1 floating forming mechanism is arranged in a die cavity of the lower die male die and is connected with the male die in a sliding manner.
And the molding insert in the step S1 and the molded surface of the male die fender form the same molded surface, and the molding insert and the male die of the lower die participate in post-stage molding.
In summary, due to the adoption of the technical scheme, the beneficial effects of the invention are as follows:
1. according to the invention, the floating forming mechanism is arranged in the lower die extension supplementing surface area near the position where the sliding line is easy to generate on the fender part, before the plate is formed, the forming insert of the floating forming mechanism is jacked up, the forming insert is in contact with the plate in advance and moves downwards along with the blank holder along with the forming of the plate, and the molded surface area of the edge line of the fender is in later contact with the plate. When the plate material contacts the edge line of the male die fender, the included angle between the plate materials at two sides of the edge line is increased, the edge line contact stress is reduced, and the slippage of the plate material at the edge line is effectively avoided or reduced.
2. The floating forming mechanism is smaller than the sliding block in size by arranging the limiting plate and structurally arranging the forming insert, so that the floating forming mechanism is limited when sliding up and down in the cavity of the male die of the lower die, the device is ensured not to slide out, and the floating forming mechanism can move through the lower air cushion ejector rod without an additional driving device.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a floating forming mechanism according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of the sheet prior to forming in S2;
FIG. 3 is a schematic cross-sectional view of the sheet material being formed to the bottom in S3;
FIG. 4 is a diagram of the lower die and the male die;
fig. 5 is a drawing of the forming process of the present invention.
Description of the drawings: 1-forming insert, 2-connecting plate, 3-sliding block, 4-guide plate, 5-top block, 6-limit plate, 7-male die, 8-drawing upper die surface, 9-plate material and 10-drawing lower die surface.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The present invention is described in detail below with reference to fig. 1-5.
Examples
The utility model provides a be applied to floating forming mechanism of lower mould, floating forming mechanism includes shaping insert 1, shaping insert 1 is connected with slider 3 through connecting plate 2, slider 3 keeps away from the flexible drive assembly of one end fixedly connected with installation on the lower mould of connecting plate 2. A group of top blocks 5 are respectively arranged at four corners of the bottom of the sliding block 3, and the distances between every two adjacent top blocks 5 are consistent. The side of slider 3 is provided with a set of deflector 4 respectively, deflector 4 vertical setting, the direction of deflector 4 is unanimous with slider 3 advancing direction. The lower die is also provided with a plurality of round holes, the distance between adjacent round holes is consistent with the distance between adjacent top blocks 5, and the floating forming mechanism can be inserted into the round holes to form sliding connection with the lower die. The telescopic driving assembly is an air cushion ejector rod arranged in the lower die, and the floating forming mechanism is moved in the vertical direction through the air cushion ejector rod. The lower die is provided with a male die 7, a male die 7 cavity is arranged in the male die 7, the floating forming mechanism is arranged in the male die 7 cavity, and when the floating forming mechanism is contracted to the bottom, the surface of the forming insert 1 and the surface of the male die 7 form the same molded surface. The guide plate on the floating forming mechanism is in sliding connection with the inner wall of the male die 7 so as to guide the floating forming mechanism and stabilize the running of the floating forming mechanism. And a limiting plate 6 is arranged at one end, far away from the forming insert 1, of the sliding block 3, and the limiting plate 6 is used for connecting an air cushion ejector rod.
The floating forming mechanism is smaller than the sliding block in size by arranging the limiting plate 6 and structurally arranging the forming insert 1, so that the floating forming mechanism is limited when sliding up and down in the cavity of the male die of the lower die, the device is ensured not to slide out, and the device can move through the lower air cushion ejector rod without an additional driving device.
A method for controlling fender edge slip using a floating forming mechanism, comprising the steps of:
s1, installing a floating forming mechanism near a position of a fender part where a sliding line is easy to generate, wherein the bottom of the floating forming mechanism is connected with the output end of an air cushion ejector rod, and the up-and-down reciprocating action of the floating forming mechanism is completed through the expansion and the contraction of the air cushion ejector rod under a press.
S2, before the plate 9 is formed, the floating forming mechanism is jacked to the highest point through an air cushion ejector rod under a press, and the profile of the floating forming mechanism is higher than that of the rib ridge line of the male die 7.
S3, part forming is started, the molded surface of the forming insert 1 of the floating forming mechanism is lifted to the highest point through the air cushion ejector rod, the molded surface of the forming insert 1 firstly contacts the plate material 9, the floating forming mechanism gradually falls along with the forming of the plate material 9 until the floating forming mechanism falls to the limit plate 6 to contact the lower die, and the floating forming mechanism reaches the lowest point. The area of the profile of the edge line of the fender can be contacted with the plate 9 later, so that the slippage of the plate 9 at the edge line is effectively avoided or reduced.
As shown in fig. 5, the sheet 9 is located at the drawing upper die surface 8, after the forming insert 1 of the floating forming machine type contacts the sheet 9 preferentially, during the forming process of the sheet 9, the floating forming machine type moves downwards with the blank 9 along with the blank holder under the extrusion of the upper die surface, and then is attached to the drawing lower die surface 10. When the plate 9 contacts the edge line of the convex die 7 fender, the included angle of the plate 9 at two sides of the edge line is increased, the edge line contact stress is reduced, the slippage of the plate 9 at the edge line is effectively avoided or reduced, and finally shaping is carried out.
According to the invention, the floating forming mechanism is arranged in the lower die extension supplementing surface area near the position where the sliding line is easy to generate on the fender part, before the plate is formed, the forming insert 1 of the floating forming mechanism is jacked up, the forming insert 1 is in contact with the plate in advance and moves downwards along with the blank forming along with the blank pressing ring, and the fender edge line profile area is in contact with the plate later. When the plate material contacts the edge line of the male die fender, the included angle between the plate materials at two sides of the edge line is increased, the edge line contact stress is reduced, and the slippage of the plate material at the edge line is effectively avoided or reduced.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A floating forming mechanism applied to a lower die is characterized in that: including shaping insert (1), shaping insert (1) is connected with slider (3), slider (3) keep away from be connected with the flexible drive assembly who installs on the lower mould on the one end of shaping insert (1).
2. The float forming mechanism of claim 1, wherein: the bottom of the sliding block (3) is provided with top blocks (5), the top blocks (5) are in four groups, are respectively arranged at four corners of the bottom end of the sliding block (3), a plurality of round holes are formed in the lower die, and the distance between every two adjacent top blocks (5) is equal to that between every two adjacent round holes.
3. The float forming mechanism of claim 1, wherein: the side of the sliding block (3) is provided with a guide plate (4), and the guiding direction of the guide plate (4) is consistent with the advancing direction of the sliding block (3).
4. The float forming mechanism of claim 1, wherein: and a limiting plate (6) is arranged at one end, far away from the forming insert (1), of the sliding block (3).
5. The float forming mechanism of claim 1, wherein: the telescopic driving component is an air cushion ejector rod.
6. A method of controlling fender ridge slippage using a floating forming mechanism according to any one of claims 1-5, comprising the steps of:
s1, installing a floating forming mechanism: the floating forming mechanism is arranged in a lower die extension supplementing surface area at a position where a sliding line is easy to generate on a fender part, so that a top block (5) of the floating forming mechanism is inserted into a die cavity of the lower die and is connected with an air cushion ejector rod in the die cavity, and up-and-down reciprocating motion is completed through the expansion and the contraction of the air cushion ejector rod;
s2, the floating forming mechanism firstly contacts the plate material (9): jacking the molding insert (1) to the highest position through an air cushion ejector rod;
s3, forming a part: the molding insert (1) molded surface of the floating molding mechanism is in contact with the plate material (9) in advance, the convex mold (7) is in contact with the plate material (9) later in the area of the rib molded surface, and the floating molding mechanism gradually falls along with the molding of the plate material (9).
7. The method for controlling the sliding of the edge line of the fender according to claim 6, wherein the S1 floating forming mechanism is arranged in a model cavity of a male die (7) of the lower die, and the floating forming mechanism is in sliding connection with the male die (7).
8. The method for controlling the slip of the fender ridge according to claim 6, wherein the forming insert (1) in S1 and the fender profile of the male die (7) form the same profile, and participate in the post-stage forming together with the lower die male die (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311513204.0A CN117444035A (en) | 2023-11-14 | 2023-11-14 | Floating forming mechanism and method for controlling sliding of edge line of fender |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311513204.0A CN117444035A (en) | 2023-11-14 | 2023-11-14 | Floating forming mechanism and method for controlling sliding of edge line of fender |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117444035A true CN117444035A (en) | 2024-01-26 |
Family
ID=89583486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311513204.0A Pending CN117444035A (en) | 2023-11-14 | 2023-11-14 | Floating forming mechanism and method for controlling sliding of edge line of fender |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117444035A (en) |
-
2023
- 2023-11-14 CN CN202311513204.0A patent/CN117444035A/en active Pending
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