CN211330899U - Laser tailor-welded blank car door inner plate drawing anti-cracking device - Google Patents
Laser tailor-welded blank car door inner plate drawing anti-cracking device Download PDFInfo
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- CN211330899U CN211330899U CN201921408695.1U CN201921408695U CN211330899U CN 211330899 U CN211330899 U CN 211330899U CN 201921408695 U CN201921408695 U CN 201921408695U CN 211330899 U CN211330899 U CN 211330899U
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- nitrogen spring
- pressing core
- backing plate
- material core
- little pressure
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Abstract
The utility model discloses a laser tailor-welded blank door inner panel draws and prevents device that ftractures, including setting up the chamber that holds on the upper die base, hold the chamber under and open-ended, the upper end closes through the backing plate lid, the backing plate is connected with nitrogen spring's upper end, and nitrogen spring below is provided with little pressure material core, little pressure material core top is provided with the recess, be provided with the cushion in the recess, nitrogen spring can contact with the cushion, and little pressure material core lateral wall is connected with little pressure material core baffle, through little pressure material core baffle and the lateral wall sliding connection who holds the chamber, the nitrogen spring outside is provided with fore-and-aft locking cushion, locking cushion upper end with backing plate lower extreme fixed connection, it is provided with annular flange to hold the inboard extension of chamber lower extreme, annular flange's lateral wall and little pressure material core lateral wall sliding connection. The split welding line structure solves the problem that the position of a thin plate of the split welding line cannot drift to the position of a thick plate, solves the problem of cracking of the position of the split welding line, and greatly reduces the generation of waste products.
Description
Technical Field
The utility model relates to a door inner panel processing technology field especially relates to a device that ftractures is prevented in drawing of laser tailor-welded blank door inner panel.
Background
The automobile door inner plate is a part which is typically used for a laser tailor-welded blank on an automobile, and the laser tailor-welded blank is formed by laser welding a plurality of steel plates which are made of the same or different materials, have the same or different thicknesses and have the same or different surface states. On the automobile body, owing to used the laser to tailor the welding plate door, can reduce part quantity, improved the precision of automobile body panel, reduced stamping process and stamping equipment, improved material utilization. The use of the split welding plate reduces the use of structural members, and due to the adoption of the split welding of different steel plates, the material thickness is increased for different strength requirements, and then the split welding plate is welded together and is formed by one-step stamping, so that the steel consumption and the production cost are reduced, and the vehicle body quality is reduced.
Because the tailor-welded blank is different in material thickness and the drawing depth of the inner plate of the car door is deeper, the thick material part is not easy to be pulled apart when the inner plate of the car door is drawn, and the material of the thin material part is fast to move, so that the tailor-welded line greatly drifts from the thin material part to the thick material part, and the position of the welding seam of the inner plate corner part of the car door is seriously cracked due to the deeper drawing depth of the inner plate corner part of the car door, which cannot be solved.
SUMMERY OF THE UTILITY MODEL
Based on the technical problem that exists among the above-mentioned prior art, the utility model provides a laser tailor-welded blank door inner panel draws and prevents device that ftractures.
In order to realize the purpose of the utility model, the utility model provides a drawing anti-cracking device for the inner plate of the laser tailor-welded blank door, which comprises a containing cavity arranged on an upper die base, the upper end of the containing cavity is provided with an opening, the upper end of the containing cavity is covered by a backing plate, the backing plate is connected with the upper end of a nitrogen spring, a small material pressing core is arranged below the nitrogen spring, a groove is arranged above the small pressing core, a cushion block is arranged in the groove, the nitrogen spring can be contacted with the cushion block, the outer side wall of the small pressing core is connected with a small pressing core guide plate, the guide plate of the small pressing core is in sliding connection with the side wall of the containing cavity, a longitudinal stop cushion block is arranged outside the nitrogen spring, the upper end of the stop cushion block is fixedly connected with the lower end of the cushion plate, the lower end of the containing cavity extends inwards to form an annular flange, and the side wall of the annular flange is in sliding connection with the side wall of the small pressing core.
Wherein, the upper die holder is connected with the backing plate through a screw.
Wherein, the upper end of the nitrogen spring is connected with the backing plate through a screw.
The small pressing core guide plate is connected with the small pressing core through a screw.
Compared with the prior art, the beneficial effects of the utility model are that, go up the mould and increase the material core structure of pressing for a short time, utilize the material core structure of pressing for a short time to push down laser tailor-welded blank door splice welding line local position when drawing, solved basically splice welding line thin sheet material position can not drift to thick sheet material position, the fracture problem of splice welding line position, production is stable, greatly reduced the production of waste product.
Drawings
Fig. 1 is a schematic structural diagram of the present application.
In the figure, 1-a backing plate, 2-a nitrogen spring, 3-a stop cushion block, 4-a small pressing core, 5-a cushion block, 6-a small pressing core guide plate and 7-an upper die holder.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when used in this specification the singular forms "a", "an" and/or "the" include "specify the presence of stated features, steps, operations, elements, or modules, components, and/or combinations thereof, unless the context clearly indicates otherwise.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
As shown in figure 1, the application provides a laser tailor-welded blank door inner panel draws and prevents device that ftractures, including setting up the chamber that holds on the upper die base, hold the chamber upper and lower opening, the upper end is closed through backing plate 1 lid, 1 lower extreme of backing plate is connected with nitrogen spring 2's upper end, and 2 below nitrogen spring are provided with little pressure material core 4, 4 tops of little pressure material core are provided with the recess, be provided with cushion 5 in the recess, nitrogen spring 2 can with 5 up end contact of cushion, push against cushion 5 after the nitrogen spring is flexible, realized the motion of little pressure material core. 4 lateral walls of material core are pressed to the height of a little and are connected with material core baffle 6 of pressing, through material core baffle 6 and the lateral wall sliding connection who holds the chamber are pressed to the height of a little, 2 outsides of nitrogen spring are provided with fore-and-aft locking cushion 3, locking cushion 3 is the circular sleeve form, the upper end with 1 lower extreme fixed connection of backing plate, it is provided with annular flange to hold the inboard extension of chamber lower extreme, the lateral wall and the 4 lateral walls sliding connection of material core are pressed to the height of a little.
The small pressing core guide plate 6 moves between the annular flange and the stop cushion block 3, and the annular flange and the stop cushion block 3 limit the small pressing core guide plate 6.
Wherein, the core can be for cylindrical for pressing for a short time, and the core baffle can be square piece for pressing for a short time, can set up 4, and the interval evenly sets up on the same circumference of core is pressed for a short time, and the partial structure that holds the chamber of being connected with the core baffle is pressed for a short time can be square structure to every side and the core baffle sliding connection of pressing for a short time cooperate the use.
Wherein, the upper die holder is connected with the backing plate 1 through a screw.
Wherein, the upper end of the nitrogen spring 2 is connected with the backing plate 1 through a screw.
The small pressing core guide plate 6 is connected with the small pressing core 4 through screws.
Wherein, the material of the small pressing core is alloy cast iron QQQ 70L.
The working principle is as follows: the small pressing core realizes pressing through the action of the nitrogen spring, the side face realizes vertical guiding through the small pressing core guide plate, the cushion block is installed on the small pressing core, the nitrogen spring is installed on the cushion plate, the cushion plate and the nitrogen spring are installed on the upper die base through screws, the nitrogen spring can be ejected to the small pressing core through the ejection cushion block, and the pressing function of the small pressing core is realized through the force action of the nitrogen spring on the small pressing core. During pulling delay, the small pressing core presses the position of the sheet material welding line by using the nitrogen spring, so that the position of a thin sheet material at the position of the welding line cannot drift to the position of a thick sheet material.
Through tests, the material core is pressurized through the upper die, and through CAE analysis, the tailor-welded wire is not cracked, the thinning rate is controlled within 20 percent, and the production requirement is met.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (4)
1. The utility model provides a laser tailor-welded blank door inner panel draws prevents device that ftractures, characterized by: comprises an accommodating cavity arranged on an upper die holder, the upper end and the lower end of the accommodating cavity are opened, the upper end of the accommodating cavity is covered by a backing plate (1), the backing plate (1) is connected with the upper end of a nitrogen spring (2), a small material pressing core (4) is arranged below the nitrogen spring (2), a groove is arranged above the small pressing core (4), a cushion block (5) is arranged in the groove, the nitrogen spring (2) can be contacted with the cushion block (5), the outer side wall of the small pressing core (4) is connected with a small pressing core guide plate (6), the small pressing core guide plate (6) is in sliding connection with the side wall of the containing cavity, a longitudinal stop cushion block (3) is arranged on the outer side of the nitrogen spring (2), the upper end of the stop cushion block (3) is fixedly connected with the lower end of the backing plate (1), the lower end of the accommodating cavity extends inwards to form an annular flange, and the side wall of the annular flange is connected with the side wall of the small pressing core (4) in a sliding mode.
2. The laser tailor welded blank door inner panel drawing anti-cracking device according to claim 1, wherein: the upper die holder is connected with the base plate (1) through screws.
3. The laser tailor welded blank door inner panel drawing anti-cracking device according to claim 1, wherein: the upper end of the nitrogen spring (2) is connected with the backing plate (1) through a screw.
4. The laser tailor welded blank door inner panel drawing anti-cracking device according to claim 1, wherein: the small pressing core guide plate (6) is connected with the small pressing core (4) through a screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921408695.1U CN211330899U (en) | 2019-08-28 | 2019-08-28 | Laser tailor-welded blank car door inner plate drawing anti-cracking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921408695.1U CN211330899U (en) | 2019-08-28 | 2019-08-28 | Laser tailor-welded blank car door inner plate drawing anti-cracking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211330899U true CN211330899U (en) | 2020-08-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921408695.1U Active CN211330899U (en) | 2019-08-28 | 2019-08-28 | Laser tailor-welded blank car door inner plate drawing anti-cracking device |
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| CN (1) | CN211330899U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112588916A (en) * | 2020-11-23 | 2021-04-02 | 中国第一汽车股份有限公司 | Floating material pressing mechanism for improving resilience of hood outer plate |
-
2019
- 2019-08-28 CN CN201921408695.1U patent/CN211330899U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112588916A (en) * | 2020-11-23 | 2021-04-02 | 中国第一汽车股份有限公司 | Floating material pressing mechanism for improving resilience of hood outer plate |
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