CN221047100U - Automobile energy-absorbing box upper plate and forming die thereof - Google Patents

Abstract

The application relates to a forming die of an upper plate of an automobile energy-absorbing box, which comprises an upper die plate, a lower die plate and a positioning mechanism, wherein the upper die plate is fixedly provided with an upper die punch, the lower die plate is fixedly provided with a lower die, an independent guide pillar is arranged between the upper die plate and the lower die plate, one end of the independent guide pillar is fixedly connected with the upper die plate, the other end of the independent guide pillar is fixedly connected with the lower die plate, the top of the lower die plate is provided with a stamping plate, the positioning mechanism comprises a transverse positioning component, a longitudinal positioning component and a stamping positioning component, the transverse positioning component is used for fixing the transverse position of the stamping plate, the longitudinal positioning component is used for fixing the longitudinal position of the stamping plate, and when the upper die plate moves towards the direction close to the lower die plate, the upper die punch and the lower die are matched for stamping and bending the stamping plate. The application has the effect of improving the processing quality of the upper plate of the automobile energy absorption box.

Description

Automobile energy-absorbing box upper plate and forming die thereof

Technical Field

The application relates to the field of automobile energy-absorbing boxes, in particular to an automobile energy-absorbing box upper plate and a forming die thereof.

Background

The upper plate of the energy absorbing box of the automobile is a plate-shaped part positioned at the top of the energy absorbing box in the front structure of the automobile, the energy absorbing box is a part of an impact energy absorbing system at the front of the automobile and is used for absorbing and dispersing energy when collision happens, the impact between passengers and the automobile is lightened, the upper plate of the energy absorbing box is usually made of high-strength steel or other impact energy absorbing materials, has stronger impact resistance, is positioned at the top of the energy absorbing box and is used for providing additional support and protection, the upper plate of the energy absorbing box can absorb and disperse part of impact energy when collision happens, the impact on the main structure of the automobile is reduced, the risk of injury to passengers is reduced, the design and the material selection of the upper plate of the energy absorbing box are precisely calculated and tested so as to ensure that the best energy absorbing effect can be achieved when collision happens, and the upper plate of the energy absorbing box is usually combined with other energy absorbing structures such as an energy absorbing beam, energy absorbing plastic and the like to form a complete front impact energy absorbing system together, so that higher safety performance is provided for passengers.

The existing trimming, punching and other procedures in the production process of the upper plate of the automobile energy absorption box are usually completed in the same procedure, the continuous die is used for stamping and forming, the continuous die comprises an upper die, a lower die, a stamping mechanism and a positioning mechanism, when a stamping plate enters the die, the positioning mechanism positions the stamping plate, and the stamping mechanism performs blanking and bending forming on the stamping plate.

To above-mentioned related art, when the automobile energy-absorbing box upper plate is bent through the progressive die and is formed, the mould is punched out the punching press panel through stamping mechanism and is bent, receives the influence of punching press panel area material point, carries out and is difficult to guarantee processingquality, appears easily causing the deburring burr big, problem such as the inconvenient counterpoint of punching a hole.

Disclosure of Invention

In order to improve the processing quality of an upper plate of an automobile energy absorption box, the application provides the upper plate of the automobile energy absorption box and a forming die thereof.

The application provides an upper plate of an automobile energy absorption box and a forming die thereof, which adopt the following technical scheme:

The utility model provides a forming die of car energy-absorbing box upper plate, includes cope match-plate pattern, lower bolster and positioning mechanism, the cope match-plate pattern is fixed to be provided with the cope match-plate pattern drift, the fixed lower die that is provided with of lower bolster, be provided with independent guide pillar between cope match-plate pattern and the lower bolster, independent guide pillar one end and cope match-plate pattern fixed connection, independent guide pillar other end and lower bolster fixed connection, lower die top is provided with punching press panel, positioning mechanism includes horizontal positioning component, vertical positioning component and punching press positioning component, horizontal positioning component is used for punching press panel transverse position's fixed, vertical positioning component is used for punching press panel vertical position to fix, the punching press positioning component is used for guiding the location of punching press panel, when the cope match-plate pattern moves towards being close to the lower bolster direction, go up die drift and lower die cooperation and carry out punching press bending with punching press panel.

Through adopting above-mentioned technical scheme, place the punching press panel in the lower mould die, through punching press locating component location, the horizontal position of horizontal locating component punching press panel is fixed, the vertical position of vertical locating component punching press panel is fixed, independent guide pillar drives the cope match-plate pattern and moves towards being close to the lower bolster direction, thereby make the cope match-plate pattern punch press the punching press panel towards the lower mould die, finally carry out punching press bending with the punching press panel through the cooperation of cope match-plate pattern punch and lower mould die, the punching press position location of punching press panel through positioning mechanism, horizontal position is fixed and vertical position is fixed, multiple location carries out the punching press, and the influence of taking the material point does not have during the punching press, reduce the burr of deburring, and make the counterpoint of punching a hole easier, when having improved the automobile energy-absorbing box upper plate and having bent the shaping through the progressive die, the punching press mechanism carries out blanking and bending to the punching press panel takes the material point's influence, the execution is difficult to guarantee processingquality, the problem such as the deburring that appears easily causes is big.

Optionally, the longitudinal positioning assembly includes a plurality of longitudinal positioning blocks, each longitudinal positioning block is fixedly arranged on the lower die plate, and each longitudinal positioning block is in butt fit with two sides of the stamping plate in the longitudinal direction.

Through adopting above-mentioned technical scheme, each vertical locating piece is through connect with the longitudinal direction both sides low of punching press panel, accomplishes the spacing to punching press panel longitudinal direction for the punching press panel longitudinal direction is difficult for removing, thereby makes the stamping forming quality of car energy-absorbing box upper plate better, makes the usability better.

Optionally, the transverse positioning assembly includes a plurality of transverse positioning blocks, each transverse positioning block is respectively arranged on the lower die plate, and each transverse positioning block is in butt fit with two sides of the stamping plate in the transverse direction.

Through adopting above-mentioned technical scheme, each transverse locating piece is through connect with the transverse direction both sides low of punching press panel, accomplishes the spacing to the transverse direction of punching press panel for the transverse direction of punching press panel is difficult for removing, thereby makes the stamping forming quality of car energy-absorbing box upper plate better, makes the usability better.

Optionally, the punching press locating component includes first locating piece and second locating piece, first locating piece and second locating piece all set up in the lower bolster, punching press panel possesses first locating hole and second locating hole, and when punching press panel placed in lower mould die fixed top, first locating piece worn to locate first locating hole, the second locating piece worn to locate the second locating hole.

Through adopting above-mentioned technical scheme, when punching press panel was placed in the lower mould die, first locating hole was worn to locate by first locating piece, and second locating piece was worn to locate by the second locating hole to make punching press panel in the position determination and the uniqueness of lower mould recess, thereby the difficult condition that the position is incorrect appears when making punching press panel place, thereby make the practicality better.

Optionally, positioning mechanism still includes lifting assembly, lifting assembly includes lifter plate and nitrogen spring, the lifter plate slides and cooperates in the lower bolster, nitrogen spring is fixed to be set up in the lower bolster, nitrogen spring's output and lifter plate fixed connection, nitrogen spring drives the lifter plate and slides towards being close to or keeping away from the cope match-plate pattern direction, when the lifter plate is close to the cope match-plate pattern, lifter plate and punching press panel butt.

Through adopting above-mentioned technical scheme, when the punching press panel towards lower mould die punching press of last mould drift, the lifter plate is through the butt cooperation with punching press panel for punching press panel bending speed slows down, simultaneously, reduces the internal stress of the car energy-absorbing box upper plate after bending the shaping, thereby makes car energy-absorbing box upper plate more level and stable, makes the practicality better.

Optionally, the lifter plate has seted up the guiding hole, the fixed guide bar that is provided with of lower bolster, the guide bar wears to locate the guiding hole and with the guiding hole cooperation that slides.

Through adopting above-mentioned technical scheme, when the lifter plate moves towards being close to or keeping away from the cope match-plate pattern direction, the guide bar is through sliding the cooperation with direction Kong De for the lifter plate direction to make the lift stability of lifter plate more, thereby make the quality that the supplementary punching press panel punching press of lifter plate bend better, thereby make the usability more.

Optionally, the stamping locating component and the transverse locating component are both located on the lifting plate, the first locating block and the second locating block are fixedly connected to the lifting plate, and the transverse locating block is fixedly connected to the lifting plate.

Through adopting above-mentioned technical scheme, all set up punching press locating component and horizontal locating component in the lifter plate along with the lifter plate towards being close to or keep away from cope match-plate pattern orientation and remove to make the demand length of first locating piece, second locating piece and horizontal locating piece reduce, when reducing the material and using, when making last die punch and lower mould die cooperate, be difficult for receiving punching press locating component and horizontal locating component's interference, make the practicality better.

Optionally, the lower die female die is fixedly provided with a plurality of reinforcing ribs, and a plurality of reinforcing grooves are formed.

Through adopting above-mentioned technical scheme, the cooperation in stiffening rib and stiffening groove during punching press for when punching press panel cooperatees punching press bending shaping through last die punch and lower mould die, fashioned car energy-absorbing box upper plate possesses a plurality of stiffening ribs, thereby makes the stability structure of car energy-absorbing box upper plate more stable, makes the practicality better.

Any one the automobile energy-absorbing box upper plate produced by the forming die of the automobile energy-absorbing box upper plate comprises a plate body with uniform thickness, wherein the plate body is 匚 -shaped, the plate body is bent gradually for two times, the plate body is further provided with two right-opposite reinforcing ribs, and the plate body is provided with a first kidney-shaped positioning hole and two circular second positioning holes.

Through adopting above-mentioned technical scheme, the internal stress that secondary bending gradually produced after making the shaping of car energy-absorbing box upper plate is littleer, and the setting of stiffening rib for the structure of car energy-absorbing box upper plate is more stable, is difficult for appearing deformation, and the setting of first locating hole and second locating hole makes forming die to the location of plate body convenient and fast more.

In summary, the present application includes at least one of the following beneficial technical effects:

1. The stamping plate is placed in the lower die, the stamping plate is positioned through the stamping positioning assembly, the transverse position of the stamping plate is fixed through the stamping positioning assembly, the longitudinal position of the stamping plate is fixed through the longitudinal positioning assembly, the independent guide pillar drives the upper die plate to move towards the direction close to the lower die plate, so that the upper die punch presses the stamping plate towards the lower die, finally, the stamping plate is stamped and bent through the matching of the upper die punch and the lower die, the stamping position of the stamping plate is positioned, the transverse position is fixed and the longitudinal position is fixed through the positioning mechanism, the stamping is performed in multiple positioning, the influence of material carrying points is avoided during stamping, burrs for trimming are reduced, the stamping is easier to align, the stamping plate is punched and bent through the stamping mechanism when the upper plate of the automobile energy absorption box is bent and molded through the continuous die, the stamping mechanism is improved, the processing quality is difficult to ensure, the problem that trimming burrs are large and the stamping is inconvenient to align is easy to occur.

2. The cooperation of stiffening rib and stiffening groove during punching press for when punching press panel cooperatees punching press bending shaping through last die punch and lower mould die, fashioned car energy-absorbing box upper plate possesses a plurality of stiffening ribs, thereby makes the stability structure of car energy-absorbing box upper plate more stable, makes the practicality better.

3. The secondary is bent gradually and is made the internal stress that produces behind the shaping of car energy-absorbing box upper plate smaller, and the setting of stiffening rib for the structure of car energy-absorbing box upper plate is more stable, is difficult for appearing deformation, and the setting of first locating hole and second locating hole makes the shaping mould more convenient and fast to the location of plate body.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application.

FIG. 2 is a schematic view of a lower template structure according to an embodiment of the present application.

Fig. 3 is a schematic structural diagram of a lifting assembly according to an embodiment of the application.

Fig. 4 is a schematic view of the upper and lower die punches according to an embodiment of the present application.

FIG. 5 is a schematic structural view of an upper plate of an automotive crash box according to an embodiment of the application.

Reference numerals illustrate: 1. an upper template; 2. an upper die punch; 21. a reinforcing groove; 3. a lower template; 31. a guide rod; 32. a longitudinal positioning groove; 33. a transverse positioning groove; 4. a lower die female die; 41. reinforcing ribs; 5. a positioning mechanism; 51. a lifting assembly; 511. a lifting plate; 5111. a guide hole; 512. a nitrogen spring; 513. a lifting seat; 52. a longitudinal positioning assembly; 521. a longitudinal positioning block; 53. a lateral positioning assembly; 531. a transverse positioning block; 5311. a waist-shaped groove; 54. stamping and positioning components; 541. a first positioning block; 542. a second positioning block; 6. independent guide posts; 7. a plate body; 71. a first positioning hole; 72. and a second positioning hole.

Detailed Description

The application is described in further detail below with reference to fig. 1-5.

The embodiment of the application discloses a forming die for an upper plate of an automobile energy absorption box. Referring to fig. 1 and 2, an upper plate of an automobile energy absorption box and a forming die thereof comprise an upper die plate 1, two upper die punches 2, a lower die plate 3, two lower die dies 4 and a positioning mechanism 5, wherein the upper die plate 1 and the lower die plate 3 are rectangular, the width direction of the lower die plate 3 is longitudinal, the length direction of the lower die plate 3 is transverse, the two upper die punches 2 are fixedly arranged on one side of the upper die plate 1, the two lower die dies 4 are fixedly arranged on one side of the lower die plate 3, the two upper die punches 2 are respectively opposite to the two lower die dies 4, so that the number of formed stamping plates during stamping is more, the stamping efficiency is better, independent guide columns 6 are arranged between the upper die plate 1 and the lower die plate 3, one end of each independent guide column 6 is fixedly connected with the upper die plate 1, the other end of each independent guide column 6 is fixedly connected with the lower die plate 3, the tops of the two lower die dies 4 are respectively provided with rectangular plates before stamping, and the two stamping plates are respectively bent by matching the two upper die punches 2 and the two lower die dies 4.

Referring to fig. 3, the positioning mechanism 5 includes a lifting assembly 51, the lifting assembly 51 includes a lifting plate 511, three nitrogen springs 512 and two lifting seats 513, the lifting plate 511 is rectangular, a plurality of grooves for matching with the lower die 4 are formed in two sides of the lifting plate 511, the lifting plate 511 is in sliding fit with the lower die 3, the two lifting seats 513 are fixedly arranged on two sides of the length direction of the lifting plate 511 and in sliding fit with the lifting plate 511, so that lifting movement of the lifting plate 511 is more stable, referring to fig. 1, each nitrogen spring 512 is fixedly arranged on the lower die 3, the output end of each nitrogen spring 512 is fixedly connected with the lifting plate 511, each nitrogen spring 512 drives the lifting plate 511 to slide towards the direction close to or far away from the upper die 1, and each nitrogen spring 512 is uniformly distributed along the length direction of the lifting plate 511, so that the lifting plate 511 is integrally and simultaneously lifted when the nitrogen springs 512 drive the lifting plate 511 to lift, and accordingly the lifting plate 511 is more stable in lifting process, and when the plate is arranged on the top of the lower die 4, one side of the lifting plate 511 is close to the upper die 1 and is in contact with the punching plate.

When the upper die punch 2 punches the punching plate towards the lower die concave die 4, the lifting plate 511 is matched with the punching plate in a butt joint mode, so that the bending speed of the punching plate is slowed down, and meanwhile, the internal stress of the upper plate of the automobile energy absorption box after bending forming is reduced, so that the upper plate of the automobile energy absorption box is smoother and more stable.

Referring to fig. 2 and 3, two guide holes 5111 are formed in the lifting plate 511, the two guide holes 5111 penetrate through the lifting plate 511 in the thickness direction, the two guide holes 5111 are located at opposite edge positions of the lifting plate 511 respectively, the lower die plate 3 is fixedly provided with a guide rod 31, the guide rod 31 is cylindrical, the guide rod 31 penetrates through the guide holes 5111 and is in sliding fit with the guide holes 5111, and therefore when the lifting plate 511 moves towards the direction close to or far away from the upper die plate 1, the guide rod 31 is in sliding fit with the guide holes 5111 to guide the lifting plate 511, and accordingly lifting stability of the lifting plate 511 is improved, and the quality of punching and bending of the punching plate is improved.

Referring to fig. 2 and 3, the positioning mechanism 5 further includes a longitudinal positioning component 52, the longitudinal positioning component 52 includes a plurality of longitudinal positioning blocks 521, a plurality of longitudinal positioning grooves 32 are formed in a side, close to the upper die plate 1, of the lower die plate 3, each longitudinal positioning groove 32 is kidney-shaped, each longitudinal positioning block 521 is respectively penetrated and fixedly arranged in each longitudinal positioning groove 32, when the stamping plate is arranged at the top of the two lower die dies 4, each longitudinal positioning block 521 is respectively in butt fit with two sides of the stamping plate in the longitudinal direction, so that the stamping plate is not easy to move along the longitudinal position, stability is better when the stamping plate is stamped, and thus the stamping forming quality of the upper plate of the automobile energy absorption box is better.

Referring to fig. 2 and 3, the positioning mechanism 5 further includes a transverse positioning assembly 53, where the transverse positioning assembly 53 includes a plurality of transverse positioning blocks 531, a plurality of transverse positioning grooves 33 are formed on a side of the lifting plate 511 near the upper template 1, each transverse positioning groove 33 is in a waist shape, and each transverse positioning block 531 is respectively penetrating through each transverse positioning groove 33 and fixedly disposed in each transverse positioning groove 33.

When lifter plate 511 and punching press panel butt time, each transverse locating piece 531 butt cooperation is in punching press panel lateral direction both sides to make punching press panel be difficult for along the lateral direction removal, thereby when making the punching press, the positional stability of punching press panel is better, thereby make the stamping forming quality of car energy-absorbing box upper plate better, each transverse locating piece 531 is fixed to be set up in lifter plate 511 simultaneously, make the length demand of the direction of height of transverse fixed block reduce, when reducing the material use, when making upper die punch 2 and lower die 4 cooperation, be difficult for receiving the interference of transverse locating component 53.

Referring to fig. 2 and 3, each lateral positioning block 531 is provided with a waist-shaped slot 5311 which is arranged in a penetrating manner, the fixed connection between each lateral positioning block 531 and the lifting plate 511 is realized through bolts, when the bolts fix each lateral positioning block 531 and the lifting plate 511, the bolts penetrate through the waist-shaped slot 5311, and the lateral positioning blocks are abutted against the lifting plate 511 through the nuts of the bolts to fix the lateral positioning blocks 531 and the lifting plate 511, so that each lateral positioning block 531 has fine adjustment capability, and the positioning effect of each lateral positioning block 531 on the punched plate is better through fine adjustment.

Referring to fig. 2 and 3, the positioning mechanism 5 further includes a punching positioning assembly 54, where the punching positioning assembly 54 includes a first positioning block 541 and two second positioning blocks 542, the first positioning block 541 and the two second positioning blocks 542 are all cylindrical, the first positioning block 541 and the second positioning block 542 are both disposed on the lower die plate 3, the punching plate includes a first positioning hole 71 and two second positioning holes 72, and when the punching plate is placed on the top of the lower die cavity 4, the first positioning block 541 is disposed through the first positioning hole 71, and the two second positioning blocks 542 are disposed through the two second positioning holes 72 respectively.

The cross-sectional diameter dimension of the first positioning block 541 is smaller than the cross-sectional diameter dimension of the second positioning block 542, and the first positioning block 541 and the two second positioning blocks 542 are not in the same straight line, so that the position of the stamping plate is determined and unique, and thus the situation that the position is incorrect when the stamping plate is placed is not easy to occur, the first positioning hole 71 is in a waist shape, so that the first positioning block 541 and the stamping plate are positioned, a certain error value is allowed, meanwhile, the stamping positioning assembly 54 is arranged on the lifting plate 511, the length requirements of the first positioning block 541 and the second positioning block 542 in the height direction are reduced, the material usage is reduced, and meanwhile, the interference of the stamping positioning assembly 54 is not easy to occur when the upper die punch 2 and the lower die female die 4 are matched.

Referring to fig. 4, the lower die 4 is fixedly provided with two reinforcing ribs 41, the two reinforcing ribs 41 are arranged opposite to each other, and the upper die punch 2 is provided with two reinforcing grooves 21, so that the reinforcing ribs 41 and the reinforcing grooves 21 are matched during punching, and the formed upper plate of the automobile energy absorption box is provided with a plurality of reinforcing ribs 41 during the matched punching bending forming of the upper die punch 2 and the lower die 4, so that the stability structure of the upper plate of the automobile energy absorption box is more stable.

The implementation principle of the forming die of the upper plate of the automobile energy absorption box provided by the embodiment of the application is as follows: during punching, the lifting assembly 51 is lifted, the lifting plate 511 is close to one side of the upper die plate 1 and is located on the same plane with the top of the lower die concave die 4, the punching material is arranged on the top of the lower die concave die 4, the positioning is carried out through the punching positioning assembly 54, the transverse position of the punching plate is fixed through the transverse positioning assembly 53, the longitudinal position of the punching plate is fixed through the longitudinal positioning assembly 52, the independent guide pillar 6 drives the upper die plate 1 to move towards the direction close to the lower die plate 3, therefore, the upper die punch 2 punches the punching plate towards the lower die concave die 4, finally, the punching plate is punched and bent through the cooperation of the upper die punch 2 and the lower die concave die 4, the punching position of the punching plate is positioned, the transverse position is fixed and the longitudinal position is fixed through the positioning mechanism 5, multiple positioning is carried out, the punching is carried out, and the influence of a material carrying point is avoided during punching, burrs are reduced, the punching alignment is easier, when the upper plate of an automobile energy-absorbing box is bent and formed through a continuous die, the punching mechanism is punched and bent, the punching plate carrying out, the influence of the material carrying point is difficult to ensure the processing quality, the large burrs are easily caused, the punching is inconvenient to align, and the like.

Referring to fig. 5, the embodiment of the application further discloses an upper plate of an automobile energy absorption box, which comprises a plate body 7 with uniform thickness, wherein the plate body 7 is 匚 -shaped, the plate body 7 is bent gradually for two times, the bending position is in a chamfer shape, the plate body 7 is further provided with two opposite reinforcing ribs 41, and the plate body 7 is provided with a first kidney-shaped positioning hole 71 and two circular second positioning holes 72.

The internal stress that produces after the shaping of secondary is bent gradually and is made car energy-absorbing box upper plate is littleer, and the setting of stiffening rib 41 for the structure of car energy-absorbing box upper plate is more stable, is difficult for appearing deformation, and the setting of first locating hole 71 and second locating hole 72 makes forming die more convenient and fast to the location of plate body 7.

The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims (9)

1. The utility model provides a forming die of car energy-absorbing box upper plate which characterized in that: including cope match-plate pattern (1), lower bolster (3) and positioning mechanism (5), cope match-plate pattern (1) is fixed to be provided with cope match-plate pattern punch (2), lower bolster (3) are fixed to be provided with lower bolster die (4), be provided with independent guide pillar (6) between cope match-plate pattern (1) and lower bolster (3), independent guide pillar (6) one end and cope match-plate pattern (1) fixed connection, independent guide pillar (6) other end and lower bolster (3) fixed connection, lower bolster die (4) top is provided with punching press panel, positioning mechanism (5) include horizontal locating component (53), vertical locating component (52) and punching press locating component (54), horizontal locating component (53) are used for punching press panel lateral position's fixed, vertical locating component (52) are used for punching press panel vertical position fixed, punching press locating component (54) are used for guiding the location of punching press panel, when cope match-plate pattern (1) are close to lower bolster (3) direction and move, upper die punch-plate pattern punch (2) and lower bolster (4) cooperation are bent punching press panel.

2. The forming die of the upper plate of the automobile energy absorption box according to claim 1, wherein: the longitudinal positioning assembly (52) comprises a plurality of longitudinal positioning blocks (521), each longitudinal positioning block (521) is fixedly arranged on the lower die plate (3) respectively, and each longitudinal positioning block (521) is in butt fit with two sides of the stamping plate in the longitudinal direction.

3. The forming die of the upper plate of the automobile energy absorption box according to claim 1, wherein: the transverse positioning assembly (53) comprises a plurality of transverse positioning blocks (531), each transverse positioning block (531) is respectively arranged on the lower die plate (3), and each transverse positioning block (531) is in butt fit with two sides of the stamping plate in the transverse direction.

4. A mold for forming an upper plate of an automotive crash box according to claim 3, wherein: the stamping locating component (54) comprises a first locating block (541) and a second locating block (542), the first locating block (541) and the second locating block (542) are arranged on the lower die plate (3), the stamping plate is provided with a first locating hole (71) and a second locating hole (72), when the stamping plate is placed on the fixed top of the lower die cavity die (4), the first locating block (541) penetrates through the first locating hole (71), and the second locating block (542) penetrates through the second locating hole (72).

5. The forming die of the upper plate of the automobile energy absorption box according to claim 4, wherein: the positioning mechanism (5) further comprises a lifting assembly (51), the lifting assembly (51) comprises a lifting plate (511) and a nitrogen spring (512), the lifting plate (511) is matched with the lower die plate (3) in a sliding mode, the nitrogen spring (512) is fixedly arranged on the lower die plate (3), the output end of the nitrogen spring (512) is fixedly connected with the lifting plate (511), the nitrogen spring (512) drives the lifting plate (511) to slide towards a direction close to or far away from the upper die plate (1), and when the lifting plate (511) is close to the upper die plate (1), the lifting plate (511) is in butt with the stamping plate.

6. The molding die for the upper plate of the automobile energy absorption box according to claim 5, wherein: the lifting plate (511) is provided with a guide hole (5111), the lower die plate (3) is fixedly provided with a guide rod (31), and the guide rod (31) penetrates through the guide hole (5111) and is in sliding fit with the guide hole (5111).

7. The forming die of the upper plate of the automobile energy absorption box according to claim 6, wherein: the stamping locating component (54) and the transverse locating component (53) are both located on the lifting plate (511), the first locating block (541) and the second locating block (542) are fixedly connected to the lifting plate (511), and the transverse locating block (531) is fixedly connected to the lifting plate (511).

8. The forming die of the upper plate of the automobile energy absorption box according to claim 1, wherein: the lower die (4) is fixedly provided with a plurality of reinforcing ribs (41), and the upper die punch (2) is provided with a plurality of reinforcing grooves (21).

9. The automotive crash box upper plate produced by a molding die of the automotive crash box upper plate according to any one of claims 1 to 8, wherein: including plate body (7) of thickness uniformity, plate body (7) are 匚 shapes, the bending of plate body (7) divide into two and bend gradually, plate body (7) still possess two just to stiffening rib (41), first locating hole (71) and two second locating holes (72) that are circular shape that are waist shape have been seted up to plate body (7).