CN218079953U - Drawing die for inner plate of vehicle door - Google Patents
Drawing die for inner plate of vehicle door Download PDFInfo
- Publication number
- CN218079953U CN218079953U CN202122360464.1U CN202122360464U CN218079953U CN 218079953 U CN218079953 U CN 218079953U CN 202122360464 U CN202122360464 U CN 202122360464U CN 218079953 U CN218079953 U CN 218079953U
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- vehicle door
- pressing block
- upper die
- door inner
- die
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Abstract
The utility model discloses a drawing die of door inner panel. The drawing die for the vehicle door inner plate comprises an upper die base, a lower die base and a blank holder arranged between the upper die base and the lower die base, wherein a female die profile in a symbol shape with the vehicle door inner plate is processed on the upper die base, a pre-pressing device is arranged in the region of the female die profile and comprises a pressing block in sliding connection with the upper die base, the bottom of the pressing block and the symbol shape of the vehicle door inner plate are arranged, a nitrogen spring is arranged at the top of the pressing block and fixedly connected to the top of the upper die base through a mounting plate, the pressing block is driven by the nitrogen spring to protrude out of the female die profile, a male die profile in the symbol shape with the vehicle door inner plate is processed on the lower die base, a puncture knife is arranged in the region of the male die profile, and the upper die base is provided with a void avoiding part for avoiding the puncture knife. The utility model provides a door inner panel appear breaking, the problem of corrugating easily at the drawing in-process.
Description
Technical Field
The utility model relates to an automobile manufacturing field especially relates to a drawing die of door inner panel.
Background
The profile of the inner plate of the vehicle door is uneven, the shape is more and the drawing depth is larger, so that the flowing speed of materials at each part along a die orifice is unbalanced when a plate blank is formed, the local thinning amount of a drawn workpiece is larger, necking or cracking occurs, and quality defects such as wrinkling, corrugation and the like occur at some parts.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a eliminate various drawing defects, guarantee the drawing mould of door inner panel of finished piece quality to prior art not enough.
In order to achieve the purpose, the utility model discloses the technical scheme that the drawing die of door inner panel adopted is:
the drawing die for the vehicle door inner plate comprises an upper die base, a lower die base and a blank holder arranged between the upper die base and the lower die base, wherein a female die profile in a symbol shape with the vehicle door inner plate is processed on the upper die base, a pre-pressing device is arranged in a region of the female die profile and comprises a pressing block in sliding connection with the upper die base, the bottom of the pressing block is in the symbol shape with the vehicle door inner plate, a nitrogen spring is arranged at the top of the pressing block and fixedly connected to the top of the upper die base through a mounting plate, the pressing block is driven by the nitrogen spring to protrude out of the female die profile, a male die profile in the symbol shape with the vehicle door inner plate is processed on the lower die base, a puncture knife is arranged in a region of the male die profile, and a void avoiding part for avoiding the puncture knife is arranged on the upper die base. Initially, the nitrogen spring drives the pressing block to protrude out of the molded surface of the female die, when the upper die base drives the pressing edge ring to move downwards, the pressing block is matched with the molded surface of the male die to press the sheet material in the area of the pressing block, the nitrogen spring is compressed, and the pressing block returns to the molded surface of the female die to be matched with the molded surface of the male die to press the sheet material scratched by the puncturing knife into the inner plate of the vehicle door.
Preferentially, the left side and the right side of the material pressing block are provided with limiting bosses, and the upper die base is provided with limiting plates matched with the limiting bosses. The limit boss is matched with the limit plate to determine the stroke of the pressure plate.
Preferentially, the back of the limiting boss is provided with a first guide plate, the upper die base is provided with a first guide sliding surface matched with the first guide plate, the front side and the rear side of the material pressing block are provided with second guide plates, the second guide plates and the first guide plates are located at the same height, and the upper die base is provided with a second guide sliding surface matched with the second guide plates. The first guide plate is matched with the first guide sliding surface, and the second guide plate is matched with the second guide sliding surface, so that the material pressing block can slide on the upper die base stably and reliably.
Preferentially, the top of the material pressing block is provided with a supporting column. After the material pressing block retreats, the supporting columns abut against the mounting plate, powerful support is provided for the material pressing block, and the nitrogen spring is protected from being damaged.
Preferably, a base plate is arranged at the bottom of the puncture knife. The moment of cutting the plate by the puncture knife is adjusted by increasing or decreasing the backing plate so as to obtain the best drawing effect.
Compared with the prior art, the utility model, have following advantage:
1. the material pressing block is matched with the molded surface of the male die to press the plate material in the area of the material pressing block firstly, so that wrinkling at the position is avoided, and the plate material is cut by the puncture knife, so that the flowing speed of the material at each position along the female die opening is balanced when the plate material is formed, and necking or cracking is avoided.
2. After the material pressing block retreats, the supporting columns abut against the mounting plate, powerful support is provided for the material pressing block, and the nitrogen spring is protected from being damaged.
3. The moment of cutting the plate by the puncture knife is adjusted by increasing or decreasing the backing plate so as to obtain the best drawing effect.
Drawings
FIG. 1 is a plan view of a drawing die for a door inner panel;
FIG. 2 isbase:Sub>A cross-sectional view A-A of FIG. 1;
fig. 3 is a sectional view B-B of fig. 1.
The device comprises an upper die holder 1, a female die profile 11, a limiting plate 12, a first sliding guide surface 13, a second sliding guide surface 14, a mounting plate 15, a void avoiding part 16, a lower die holder 2, a male die profile 21, a puncture knife 22, a backing plate 23, a blank holder 3, a pre-pressing device 4, a material pressing block 41, a limiting boss 42, a first guide plate 43, a second guide plate 44, a nitrogen spring 45 and a supporting column 46.
Detailed Description
The present invention will be further explained with reference to the attached drawings and detailed description, which should be understood that these embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention, and after reading the present invention, the modifications of the various equivalent forms of the present invention by those skilled in the art will fall within the scope defined by the appended claims of the present application.
As shown in figures 1-3, a drawing die for a vehicle door inner plate comprises an upper die holder 1, a lower die holder 2 and a blank holder 3 arranged between the upper die holder and the lower die holder, wherein the upper die holder is used for processing a female die profile 11 which is in a shape similar to the vehicle door inner plate, a pre-pressing device 4 is arranged in the area of the female die profile and comprises a pressing block 41 which is in sliding connection with the upper die holder, the bottom of the pressing block is in a shape similar to the vehicle door inner plate, limiting bosses 42 are processed on the left side and the right side of the pressing block, a limiting plate 12 is arranged on the upper die holder, the stroke of the pressing block is determined by the cooperation of the limiting bosses and the limiting plate, a first guide plate 43 is arranged on the back surface of the limiting boss, a first guide sliding surface 13 which is matched with the first guide plate is processed on the upper die holder, second guide plates 44 are arranged on the front side and the back side of the pressing block, the second guide plate is at the same height as the first guide plate, a second guide sliding surface 14 which is matched with the second guide plate is processed on the upper die holder, the first guide plate is matched with the first guide sliding surface, the second guide plate is matched with the second guide sliding surface, so that the stable and reliable sliding of the pressure block on the upper die base is ensured, the nitrogen spring 45 is arranged at the top of the pressure block and fixedly connected to the top of the upper die base through the mounting plate 15, the pressure block is driven by the nitrogen spring to protrude out of the female die profile, the two support columns 46 are arranged at the top of the pressure block, after the pressure block retreats, the support columns abut against the mounting plate to provide powerful support for the pressure block and protect the nitrogen spring from being damaged, the lower die base is provided with the male die profile 21 in a shape similar to the inner plate of the vehicle door, the puncture knife 22 is arranged in the region of the male die profile, the base plate 23 is arranged at the bottom of the puncture knife, the opportunity for the puncture knife to puncture the plate is adjusted through increasing and decreasing the base plate to obtain the best drawing effect, and the upper die base is provided with the avoiding part 16 for avoiding the puncture knife.
The utility model discloses a concrete working process and principle: initially, the nitrogen spring drives the pressing block to protrude out of the molded surface of the female die, when the upper die base drives the pressing edge ring to move downwards, the pressing block is matched with the molded surface of the male die to press the sheet material in the area of the pressing block, the nitrogen spring is compressed, and the pressing block returns to the molded surface of the female die to be matched with the molded surface of the male die to press the sheet material scratched by the puncturing knife into the inner plate of the vehicle door. The utility model discloses an add puncture sword and pre-compaction material device, eliminated various drawing defects, guaranteed the finished piece quality.
Claims (5)
1. The drawing die for the inner plate of the vehicle door is characterized in that: the device comprises an upper die holder, a lower die holder and a blank holder arranged between the upper die holder and the lower die holder, wherein a female die surface in a symbol shape with a vehicle door inner plate is processed on the upper die holder, a pre-pressing device is arranged in the region of the female die surface and comprises a pressing block in sliding connection with the upper die holder, the bottom of the pressing block and the symbol shape with the vehicle door inner plate are arranged on the pressing block, a nitrogen spring is arranged at the top of the pressing block and fixedly connected to the top of the upper die holder through a mounting plate, the pressing block is driven by the nitrogen spring to protrude out of the female die surface, a male die surface in the symbol shape with the vehicle door inner plate is processed on the lower die holder, a puncture knife is arranged in the region of the male die surface, and the upper die holder is provided with a void avoiding part for avoiding the puncture knife.
2. The drawing die for a vehicle door inner panel according to claim 1, characterized in that: the left and right sides of the material pressing block are provided with limiting bosses, and the upper die base is provided with limiting plates matched with the limiting bosses.
3. The drawing die for a vehicle door inner panel according to claim 2, characterized in that: the back of spacing boss is provided with first baffle, and the upper die base is provided with and leads the spigot surface with first baffle complex first, both sides are provided with the second baffle around the pressure material piece, and the second baffle is in same height with first baffle, and the upper die base is provided with and leads the spigot surface with second baffle complex second.
4. The drawing die for a vehicle door inner panel according to claim 1, characterized in that: and a supporting column is arranged at the top of the material pressing block.
5. The drawing die for a vehicle door inner panel according to claim 1, characterized in that: the bottom of the puncture knife is provided with a backing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122360464.1U CN218079953U (en) | 2021-09-28 | 2021-09-28 | Drawing die for inner plate of vehicle door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122360464.1U CN218079953U (en) | 2021-09-28 | 2021-09-28 | Drawing die for inner plate of vehicle door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218079953U true CN218079953U (en) | 2022-12-20 |
Family
ID=84444056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122360464.1U Active CN218079953U (en) | 2021-09-28 | 2021-09-28 | Drawing die for inner plate of vehicle door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218079953U (en) |
-
2021
- 2021-09-28 CN CN202122360464.1U patent/CN218079953U/en active Active
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