CN212704013U

CN212704013U - One-step forming automobile metal plate stamping die based on laser tailor-welded material

Info

Publication number: CN212704013U
Application number: CN202021258876.3U
Authority: CN
Inventors: 黄良国; 徐慧西
Original assignee: Zhejiang Huangyan Die Co ltd
Current assignee: Zhejiang Huangyan Die Co ltd
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2021-03-16
Anticipated expiration: 2030-06-30

Abstract

The utility model belongs to the technical field of dies, in particular to a one-step forming automobile metal plate stamping die based on laser tailor-welded material; the lower die holder is provided with a plurality of lower inserts, the lower inserts are provided with bulges, the upper die holder is provided with a material pressing mechanism and the lower inserts, the material pressing mechanism comprises a material pressing core and a material pressing seat, the material pressing seat is arranged on the upper die holder, the material pressing core is connected with the material pressing seat through a nitrogen cylinder, the material pressing core is driven by the nitrogen cylinder to move up and down, the upper inserts and the material pressing core are provided with upper recesses, and the bulges are matched with the upper recesses in shape and used for forming workpieces; the utility model discloses a material pressing of die terrace die and swager constructs presses material to realize two pressure material structures, the material pressing that the position that the formula shaping degree of difficulty is high can be better.

Description

One-step forming automobile metal plate stamping die based on laser tailor-welded material

The technical field is as follows:

the utility model belongs to the technical field of the mould, refer in particular to a based on laser tailor-welded material one shot forming car panel beating stamping die.

Background art:

in order to respond to national energy conservation and emission reduction, each automobile host factory has to consider the driving safety of the automobile while reducing the weight of the automobile, so that the impact force of the automobile after collision is reduced by adopting laser tailor-welded blank sheet metal parts at the local position of the automobile body, and the safety of a driver and passengers is ensured. The laser welding plate part is formed by welding two materials with different material thicknesses and different tensile strengths into a material piece in a laser welding mode, and the material piece is formed in a cold stamping mode and is prevented from cracking and welding off. The technical requirements for synchronous feed and springback control are extremely high. The traditional stamping die cannot be suitable for stamping the laser tailor-welded materials with unequal thickness and unequal strength.

The invention content is as follows:

the utility model aims at providing a make laser tailor-welded blank be difficult for the fracture at tensile in-process based on laser tailor-welded material one shot forming car panel beating stamping die.

The utility model discloses a realize like this:

based on laser tailor-welded material one shot forming car panel beating stamping die, including upper die base, die holder, be provided with a plurality of lower inserts on the die holder, be provided with the arch on a plurality of lower inserts, be provided with swager on the upper die base and insert a plurality of down, swager includes material pressing core and material pressing seat, the material pressing seat sets up on the upper die base, and the material pressing core passes through the nitrogen cylinder and is connected with the material pressing seat, and the material pressing core reciprocates by the drive of nitrogen cylinder, be provided with on a plurality of inserts and the material pressing core and go up concavely, protruding and the identical shaping work piece that is used for of last concave shape.

In the one-step forming automobile sheet metal stamping die based on the laser tailor-welded material, the lower insert, the upper insert and the pressing core are made of ASAB88 materials.

In the one-step forming automobile metal plate stamping die based on the laser tailor-welded material, the upper surface of the lower insert, the upper insert and the lower surface of the pressing core are provided with coatings for reducing local friction.

In foretell based on laser tailor-welded material one shot forming car panel beating stamping die, be provided with the swager structure mounting hole on the upper die base, be provided with the swager core hole that shape and swager core looks adaptation and confession swager core lower extreme passed through at the lower extreme of swager structure mounting hole, be provided with first wear plate on the inner wall of swager structure mounting hole, the corresponding position of the outer wall on swager core upper portion is provided with the second wear plate, the swager base sets firmly on the upper plane of upper die base.

In foretell based on laser tailor-welded material one shot forming car panel beating stamping die, the last plane of upper die base is provided with recessedly, the setting of pressure material seat is in recessedly.

In the stamping die for the one-step forming of the automobile metal plate based on the laser tailor-welded material, lower concave portions are respectively arranged at two ends of the lower die holder, outer convex portions are respectively arranged at two ends of the upper die holder, third wear-resistant plates and fourth wear-resistant plates are arranged on the outer side walls of the outer convex portions and the inner side walls of the lower concave portions, the number and the positions of the third wear-resistant plates and the fourth wear-resistant plates are in one-to-one correspondence, and when die assembly is carried out, the outer convex portions of the upper die holder are.

Compared with the prior art, the utility model outstanding advantage is:

1. the utility model discloses a die, terrace die clearance control technique, go up insert, lower insert adopt the higher ASAB88 material of coefficient of wear, reduce local frictional force through surface coating, reach the purpose that the welding department does not split in the stretch forming.

2. The utility model discloses a material pressing of die terrace die and swager constructs presses material to realize two pressure material structures, the material pressing that the position that the formula shaping degree of difficulty is high can be better.

Description of the drawings:

fig. 1 is a schematic view of the present invention;

fig. 2 is a top view of the present invention;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

FIG. 4 is an enlarged schematic view of section A of FIG. 3;

fig. 5 is a schematic view of the material pressing mechanism of the present invention pressed on the male die;

fig. 6 is a schematic view of the lower mold of the present invention;

fig. 7 is a schematic view of an upper die of the present invention;

fig. 8 is a schematic view of the swaging core of the swaging mechanism of the present invention after being disassembled;

fig. 9 is a schematic view of the material pressing mechanism of the present invention;

fig. 10 is a schematic view of an upper die base of the present invention.

In the figure: 1. an upper die holder; 2. a lower die holder; 3. a lower insert; 4. a material pressing mechanism; 5. an upper insert block; 6. pressing the material core; 7. a material pressing seat; 8. a nitrogen cylinder; 9. a swaging mechanism mounting hole; 10. pressing a core hole; 11. a first wear plate; 12. a second wear plate; 13. a lower recess; 14. an outer convex portion; 15. a third grinding prevention plate; 16. and a fourth wear plate.

The specific implementation mode is as follows:

the invention will now be further described with reference to specific embodiments, with reference to figures 1 to 10:

based on laser tailor-welded material one shot forming car panel beating stamping die, including upper die base 1, die holder 2, be provided with a plurality of lower inserts 3 on die holder 2, be provided with arch (formation terrace die) on a plurality of lower inserts 3, be provided with swager 4 and a plurality of upper insert 5 on upper die base 1, swager 4 includes pressing material core 6 and presses material base 7, pressing material base 7 sets up on upper die base 1, presses material core 6 to be connected with pressing material base 7 through nitrogen cylinder 8, presses material core 6 to reciprocate by the drive of nitrogen cylinder 8, be provided with the concavity (formation die) on a plurality of upper inserts 5 and the pressing material core 6, protruding and the identical shaping work piece that is used for of concave shape, lower insert 3, upper insert 5, press material core 6 to adopt the ASAB88 material to make, improve wear resistance. The utility model discloses a nitrogen cylinder 8 can control earlier before pressing the material and press material core 6 to push down the laser tailor-welded material, then is carrying out the die terrace die and presses the material. The double-pressing structure is realized through pressing of the female die male die and pressing of the pressing mechanism, so that pressing at a position with high forming difficulty can be better realized.

Further, the upper surface of the lower insert 3, the lower surface of the upper insert 5 and the swaging core 6 are provided with a coating for reducing local friction, such as a ceramic coating, a PVD coating, or the like.

The laser tailor-welded blank welds two materials with different thicknesses and different brands together through laser tailor-welding, so that the cracking phenomenon is easy to generate in the process of stretching and forming. The utility model discloses a die, terrace die clearance control technique, go up insert, lower insert adopt the higher ASAB88 material of coefficient of wear, reduce local frictional force through surface coating, reach the purpose that the welding department does not split in the stretch forming.

As shown in fig. 10, a pressing mechanism mounting hole 9 is formed in the upper die base 1, a pressing core hole 10 is formed in the lower end of the pressing mechanism mounting hole 9, the pressing core hole 10 is matched with the pressing core 6 in shape and allows the lower end of the pressing core 6 to pass through, a first wear-resistant plate 11 is arranged on the inner wall of the pressing mechanism mounting hole 9, a second wear-resistant plate 12 is arranged at a position corresponding to the outer wall of the upper portion of the pressing core 6, and the pressing base 7 is fixedly arranged on the upper plane of the upper die base 1.

As shown in fig. 1-4, the upper plane of the upper die holder 1 is provided with a recess, the pressing seat 7 is arranged in the recess, and after installation, the upper plane of the pressing seat 7 is flush with or slightly lower than or slightly higher than the upper plane of the upper die holder 1.

As shown in fig. 1, 3, 5 and 6, lower concave portions 13 are respectively disposed at two ends of the lower die holder 2, outer convex portions 14 are respectively disposed at two ends of the upper die holder 1, third wear-resistant plates 15 and fourth wear-resistant plates 16 are disposed on outer side walls of the outer convex portions 14 and inner side walls of the lower concave portions 13, the number and the positions of the third wear-resistant plates and the fourth wear-resistant plates correspond to each other one by one, and the outer convex portions 14 of the upper die holder 1 are inserted into the lower concave portions 13 of the lower die holder 2 during die assembly.

The above-mentioned embodiment is only one of the preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, so: all equivalent changes made according to the shape, structure and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. Based on laser tailor-welded material one shot forming car panel beating stamping die, including upper die base (1), die holder (2), its characterized in that: the lower die holder (2) is provided with a plurality of lower inserts (3), the lower inserts (3) are provided with bulges, the upper die holder (1) is provided with a material pressing mechanism (4) and a plurality of upper inserts (5), the material pressing mechanism (4) comprises a material pressing core (6) and a material pressing seat (7), the material pressing seat (7) is arranged on the upper die holder (1), the material pressing core (6) is connected with the material pressing seat (7) through a nitrogen cylinder (8), the material pressing core (6) is driven by the nitrogen cylinder (8) to move up and down, the upper concaves are arranged on the upper inserts (5) and the material pressing core (6), and the bulges are matched with the upper concaves and used for forming workpieces.

2. The one-step forming automobile sheet metal stamping die based on the laser tailor-welded material according to claim 1, characterized in that: the lower insert (3), the upper insert (5) and the pressing core (6) are made of ASAB88 materials.

3. The one-step forming automobile sheet metal stamping die based on the laser tailor-welded material according to claim 1 or 2, characterized in that: the upper surface of the lower insert (3), the lower surfaces of the upper insert (5) and the material pressing core (6) are provided with coatings for reducing local friction.

4. The one-step forming automobile sheet metal stamping die based on the laser tailor-welded material according to claim 1 or 2, characterized in that: the die comprises an upper die base (1) and is characterized in that a pressing mechanism mounting hole (9) is formed in the upper die base (1), a pressing core hole (10) which is matched with a pressing core (6) in shape and is used for the lower end of the pressing core (6) to pass through is formed in the lower end of the pressing mechanism mounting hole (9), a first wear-resistant plate (11) is arranged on the inner wall of the pressing mechanism mounting hole (9), a second wear-resistant plate (12) is arranged at the corresponding position of the outer wall of the upper portion of the pressing core (6), and the pressing base (7) is fixedly arranged on the upper plane of the upper die base (1).

5. The one-step forming automobile sheet metal stamping die based on the laser tailor-welded material according to claim 4, characterized in that: the upper plane of the upper die holder (1) is provided with a concave part, and the material pressing seat (7) is arranged in the concave part.

6. The one-step forming automobile sheet metal stamping die based on the laser tailor-welded material according to claim 1, characterized in that: lower concave parts (13) are respectively arranged at two ends of the lower die holder (2), outer convex parts (14) are respectively arranged at two ends of the upper die holder (1), third wear-resistant plates (15) and fourth wear-resistant plates (16) are arranged on the outer side wall of the outer convex parts (14) and the inner side wall of the lower concave parts (13) in a one-to-one correspondence manner in quantity and position, and the outer convex parts (14) of the upper die holder (1) are inserted into the lower concave parts (13) of the lower die holder (2) during die assembly.