CN217393490U - Mould structure for improving quality of automobile B column - Google Patents
Mould structure for improving quality of automobile B column Download PDFInfo
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- CN217393490U CN217393490U CN202123248643.2U CN202123248643U CN217393490U CN 217393490 U CN217393490 U CN 217393490U CN 202123248643 U CN202123248643 U CN 202123248643U CN 217393490 U CN217393490 U CN 217393490U
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Abstract
The utility model belongs to the technical field of the mould technique and specifically relates to an improve mould structure of car B post quality. The utility model provides an improve mould structure of car B post quality, includes terrace die, die holder, blank holder, its characterized in that: a male die base is arranged on one side of the lower die base, and the top of the male die base is connected with a male die by a male die positioning key; the floating sectional type drawing bead is arranged on one side of the male die, the blank holder is arranged on one side of the floating sectional type drawing bead, the floating sectional type drawing bead is connected with the blank holder in an L-shaped buckle mode, and the blank holder base is arranged below the blank holder; and a draw bead top block is arranged below the floating sectional type draw bead. Compared with the prior art, the die structure for improving the quality of the automobile B column is provided, the draw bead in the conventional process method is changed into a floating sectional structure, the blank holder force does not need to be increased, the size of a plate does not need to be increased, and meanwhile, a product flange does not have a hardening belt and the side wall does not wrinkle.
Description
Technical Field
The utility model belongs to the technical field of the mould technique and specifically relates to an improve mould structure of car B post quality.
Background
Automobile host computer factory subtracts heavy or reduce welding cost for whole car to the promotion of automobile modeling diversification and car stability requires that the surface quality and the molding of automobile parts also are more and more complicated. Meanwhile, in order to reduce cost and save resources, the requirements on the utilization rate of raw materials of parts are higher and higher. Therefore, the manufacturing process must be continuously improved, and the conventional manufacturing scheme is broken.
The conventional process adopts a drawing form with a draw bead, the blank holder of the lower die is closed firstly, the upper die material pressing plate acts when the basic contour of the main profile appears after drawing, and finally the upper die material pressing plate is drawn in place. Due to the fact that the drawing beads are arranged, plate materials passing through the drawing beads can flow into a product, hardening belts are formed on flanges or side walls of the product, the surface quality of the product is extremely poor, the hardening belts can only be optimized through subsequent shaping and cannot be eliminated, and therefore the sizes of the hardening belts and peripheral areas are unqualified.
If other process forming modes are replaced, the process forming mode in the market at present is a process supplement improved drawing mode, a drawing mode of canceling a draw bead and increasing blank holder force and a forming mode besides the drawing. The improved drawing mode of process supplement is that a part flange is completely arranged on a male die, a side wall and a material pressing surface are arranged outside the flange, and the plate passing through a drawing rib is ensured not to flow to a product area. The method can greatly reduce the utilization rate of the plate, increase the weight of the die and seriously affect various costs.
However, the drawing mode that the draw bead is cancelled to increase the blank holder force is adopted, the tensile strength of the product is very high, and the product belongs to an ultrahigh-strength plate, so that after the draw bead is cancelled, the blank holder force of at least more than 250T is needed to ensure that the side wall at the corner is not wrinkled, the blank holder force which can be provided by a common production line press in the market at present is generally within 150T, so that the production line press cannot meet the pressure requirement, the blank holder force is very high, the unusual requirement on the material of a mould is met, and the mould cost is very high. In addition, the height difference of the main profile surface of the part is large, and the forming mode does not have a draw bead or a hardening belt, but causes serious wrinkling of the side wall and the R angle.
Disclosure of Invention
The utility model discloses an overcome prior art not enough, provide a mould structure of improving car B post quality, change the draw bead in the conventional process method into the structure of unsteady sectional type, need not to increase blank holder force, need not to increase the sheet material size, can guarantee simultaneously that the product flange does not have the sclerosis area, and the lateral wall does not corrugate.
For realizing above-mentioned purpose, design a mould structure that improves car B post quality, including terrace die, die holder, blank holder, its characterized in that: a male die base is arranged on one side of the lower die base, and the top of the male die base is connected with a male die by a male die positioning key; the floating sectional type drawing bead is arranged on one side of the male die, the blank holder is arranged on one side of the floating sectional type drawing bead, the floating sectional type drawing bead is connected with the blank holder in an L-shaped buckle mode, and the blank holder base is arranged below the blank holder; and a draw bead top block is arranged below the floating sectional type draw bead.
One end of an ejector rod is connected to the lower side of one side of the blank holder base, and the other end of the ejector rod penetrates through the lower die base and is located in the lower die base.
And one end of a blank holder stroke fiber screw is arranged below the other side of the blank holder base, and the other end of the blank holder stroke fiber screw is connected with the top of the lower die seat.
And a blank holder lifting lug is arranged on one side of the blank holder base, and a mould lifting rod is arranged below the blank holder lifting lug.
And the top of the lower die seat positioned on one side of the blank holder stroke fiber screw is provided with a blank holder to bottom block.
Compared with the prior art, the utility model, a mould structure of car B post quality is improved is provided, changes the draw bead in conventional process into the structure of unsteady sectional type, need not to increase blank holder force, need not to increase the sheet material size, can guarantee simultaneously that the product flange does not have the hardening area, and the lateral wall does not corrugate.
Drawings
FIG. 1 is a schematic view of a mold structure in a state where a blank holder is floating.
FIG. 2 is a schematic view of the mold structure in a state where the blank holder is pressed to the bottom.
Referring to fig. 1 and 2, the drawing 1 is a male die, the drawing 2 is a male die positioning key, the drawing 3 is a male die base, the drawing 4 is a floating sectional type draw bead, the drawing 5 is a blank holder, the drawing 6 is a blank holder base, the drawing 7 is a blank holder lifting lug, the drawing 8 is a blank holder stroke fiber screw, the drawing 9 is a die lifting rod, the drawing 10 is a lower die base, the drawing 11 is an ejector rod, the drawing bead ejector block 12 is a drawing bead ejector block, and the drawing 13 is a blank holder to bottom block.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
As shown in fig. 1 and 2, a male die base 3 is arranged on one side of a lower die holder 10, and the top of the male die base 3 is connected with a male die 1 by a male die positioning key 2; a floating sectional type draw bead 4 is arranged on one side of the male die 1, a blank holder 5 is arranged on one side of the floating sectional type draw bead 4, the floating sectional type draw bead 4 and the blank holder 5 are in L-shaped buckle connection, and a blank holder base 6 is arranged below the blank holder 5; and a draw bead top block 12 is arranged below the floating sectional type draw bead 4.
One end of an ejector rod 11 is connected to one side of the blank holder base 6, and the other end of the ejector rod 11 penetrates through the lower die base 10 and is located in the lower die base 10.
One end of a blank holder stroke fiber screw 8 is arranged below the other side of the blank holder base 6, and the other end of the blank holder stroke fiber screw 8 is connected with the top of the lower die base 10.
And a blank holder lifting lug 7 is arranged on one side of the blank holder base 6, and a mould lifting rod 9 is arranged below the blank holder lifting lug 7.
And a blank holder to bottom block 13 is arranged on the top of the lower die seat 10 positioned on one side of the blank holder stroke fiber screw 8.
The structure of the draw bead in the conventional process method is changed into a floating sectional type. In the initial stage of drawing, as shown in figure 1, the floating sectional type drawing bead 4 does not work, when the distance from the bottom of the drawing is about 10mm, the floating sectional type drawing bead 4 is lifted under the mechanical action of the punch cushion block to work, and as the last 10mm is worked, namely the blank holder 5 is pressed to the bottom, as shown in figure 2, the plate hardened by the drawing bead cannot flow into a product area.
The utility model discloses the improvement of structure need not to increase the blank holder power, need not to increase the sheet material size, can guarantee simultaneously that the product flange does not have the sclerosis area, and the lateral wall does not corrugate. The improved product flange has no hardening belt, and the side wall can not be stacked.
Claims (5)
1. The utility model provides an improve mould structure of car B post quality, includes terrace die, die holder, blank holder, its characterized in that: a male die base (3) is arranged on one side of the lower die seat (10), and the top of the male die base (3) is connected with a male die (1) by a male die positioning key (2); a floating sectional type drawing bead (4) is arranged on one side of the male die (1), a blank holder (5) is arranged on one side of the floating sectional type drawing bead (4), the floating sectional type drawing bead (4) is in L-shaped buckle connection with the blank holder (5), and a blank holder base (6) is arranged below the blank holder (5); a draw bead top block (12) is arranged below the floating sectional type draw bead (4).
2. The mold structure for improving the quality of the B-pillar of the automobile as claimed in claim 1, wherein: one end of an ejector rod (11) is connected to one side of the blank holder base (6) below, and the other end of the ejector rod (11) penetrates through the lower die base (10) and is located in the lower die base (10).
3. The mold structure for improving the quality of the B-pillar of the automobile as claimed in claim 1, wherein: and one end of a blank holder stroke fiber screw (8) is arranged below the other side of the blank holder base (6), and the other end of the blank holder stroke fiber screw (8) is connected with the top of the lower die base (10).
4. The mold structure for improving the quality of the B-pillar of the automobile as claimed in claim 1, wherein: and a blank holder lifting lug (7) is arranged on one side of the blank holder base (6), and a mould lifting rod (9) is arranged below the blank holder lifting lug (7).
5. The mold structure for improving the quality of the B-pillar of the automobile according to claim 3, wherein: the top of the lower die seat (10) positioned at one side of the blank holder stroke fiber screw (8) is provided with a blank holder to bottom block (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123248643.2U CN217393490U (en) | 2021-12-22 | 2021-12-22 | Mould structure for improving quality of automobile B column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123248643.2U CN217393490U (en) | 2021-12-22 | 2021-12-22 | Mould structure for improving quality of automobile B column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217393490U true CN217393490U (en) | 2022-09-09 |
Family
ID=83132308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123248643.2U Active CN217393490U (en) | 2021-12-22 | 2021-12-22 | Mould structure for improving quality of automobile B column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217393490U (en) |
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2021
- 2021-12-22 CN CN202123248643.2U patent/CN217393490U/en active Active
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