Drawing die for automobile longitudinal beam reinforcing plate

Abstract

The utility model discloses an automobile longitudinal beam reinforcing plate drawing die which comprises a base, a lower die holder is arranged above the base, and an upper die holder is arranged above the lower die holder. A male die core is arranged at the upper end of the lower die base, and a female die cavity is formed in the lower end of the upper die base. A circle of protruding edge pressing ribs are arranged at the opening end of the female die cavity along the periphery of the female die cavity, and the edge pressing ribs abut against the peripheral side of the male die core. According to the drawing die, the male die core is arranged on the lower die base, the female die cavity matched with the male die core is formed in the upper die base, and the design of the edge pressing ribs is matched, so that uniform flowing and accurate positioning of materials in the drawing process are ensured, and the machining precision and stability of reinforcing plate parts are remarkably improved; the male die insert and the female die insert which are modularly designed are respectively spliced to form the male die core and the female die cavity, so that the manufacturing process of the die is simplified, and later maintenance and adjustment are facilitated; the manufacturing process of the reinforcing plate is smoother, the rejection rate and the rework rate are reduced, and the production efficiency is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile parts processing, especially relates to a drawing die of automobile longitudinal beam reinforcing plate. BACKGROUND

[0002] The automobile longitudinal beam, as the core support framework of the automobile chassis structure, is generally manufactured by high-strength steel plates through a precise stamping process, providing a solid installation reference for automobile parts and components. Among them, the automobile longitudinal beam rear section reinforcing plate, as a key automobile part, is specially designed to be installed in the rear section area of the automobile longitudinal beam, aiming to significantly improve the strength and overall stability of the rear half of the longitudinal beam, and thus optimize the collision protection performance of the automobile.

[0003] The quality of the longitudinal beam reinforcing plate stamping part is crucial to ensuring the accuracy of the whole vehicle assembly, and the stamping drawing process behind it and the closely matched die design directly determine the overall quality of the longitudinal beam stamping part. In the processing flow of the reinforcing plate, a pair of precisely matched dies are used to perform drawing and extrusion on the steel plate to make it accurately shaped, so as to tightly fit the rear end of the automobile longitudinal beam, thereby fully exerting its reinforcing effect. However, given the high standard requirements of the reinforcing plate part for stability, rigidity and accuracy, this poses a very strict challenge to the cold stamping process of the automobile longitudinal beam reinforcing plate part and its die design. In order to continuously improve the quality and processing accuracy of the reinforcing plate, the die often needs to undergo multiple rounds of adjustment and optimization, which undoubtedly increases the manufacturing difficulty of the reinforcing plate and also affects the overall production efficiency. SUMMARY

[0004] The utility model discloses a drawing die of automobile longitudinal beam reinforcing plate to solve the problem raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme: a drawing die of automobile longitudinal beam reinforcing plate, including the base, the lower die seat is equipped on the base upper, wherein the lower die seat upper is equipped with the upper die seat that is suitable for it;The first installation groove is opened to the lower die seat upper end, wherein the male die core is equipped in the first installation groove;The second installation groove is opened to the upper die seat lower end, wherein the female die cavity is equipped in the second installation groove, and the male die core is arranged in the female die cavity;The female die cavity opening end is equipped with a circle of the raised edge bead along its periphery, wherein the edge bead is in abutment with the male die core periphery, and the female die cavity and the male die core and the female die cavity and the edge bead form the drawing surface between them.

[0006] Preferably, the male die core periphery is equipped with a plurality of guide rods, wherein the female die cavity periphery is opened with a plurality of guide holes suitable for the guide rods.

[0007] Preferably, the male die core comprises a plurality of male die inserts fixed in the first mounting groove, wherein the plurality of male die inserts are sequentially assembled along the inner wall of the first mounting groove to form the male die core.

[0008] Preferably, the inner wall of the first mounting groove is provided with a plurality of first wedges equidistantly along the length direction, wherein one side of the first wedge is in sliding connection with the first mounting groove, and the other side of the first wedge is in abutment with the male die insert.

[0009] Preferably, the female die cavity comprises a plurality of female die inserts fixed in the second mounting groove, wherein the plurality of female die inserts are sequentially assembled along the inner wall of the second mounting groove to form the female die cavity.

[0010] Preferably, the inner wall of the second mounting groove is provided with a plurality of second wedges equidistantly along the length direction, wherein one side of the second wedge is in sliding connection with the second mounting groove, and the other side of the second wedge is in abutment with the female die insert.

[0011] Preferably, the upper die seat is symmetrically provided with two groups of positioning blocks below both ends, wherein the lower die seat is provided with positioning grooves above both ends, which are adapted to the positioning blocks.

[0012] Preferably, the two side walls of the positioning block are provided with buffer pads, wherein the buffer pads are in abutment with the inner wall of the positioning groove.

[0013] Compared with the prior art, the utility model has the advantages that: the utility model discloses a male die core is arranged on the lower die seat, and a female die cavity adapted to the male die core is arranged on the upper die seat, cooperating with the design of the edge bead rib, ensuring the uniform flow and accurate positioning of the material during the drawing process, thereby remarkably improving the machining precision and stability of the reinforced plate part, the modular design male die inserts and female die inserts are assembled to form the male die core and the female die cavity respectively, which not only simplifies the manufacturing process of the die, but also facilitates the later maintenance and adjustment, meanwhile, through the arrangement of the first wedge and the second wedge, the effective fixing and fine adjustment of the male die insert and the female die insert are realized, further improving the adaptability and flexibility of the die, the cooperation of the guide rod and the guide hole, and the design of the positioning block and the positioning groove ensure the accurate alignment of the upper die seat and the lower die seat during the die closing process, avoiding the processing defects caused by the die misalignment, and improving the service life of the die, due to the optimization of the die structure and the improvement of the manufacturing precision, the manufacturing process of the reinforced plate is more smooth, reducing the scrap rate and rework rate, thereby remarkably improving the production efficiency and reducing the production cost. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is the structure schematic view of the front end of the utility model cabinet body;

[0015] Fig. 2 It is the structure schematic view of the lower die seat of the utility model;

[0016] Fig. 3 is a structural schematic view of the upper die seat of the utility model.

[0017] Wherein: 1, base; 2, lower die seat; 3, upper die seat; 4, first installation slot; 5, male die core; 501, male die insert; 6, second installation slot; 7, female die cavity; 701, female die insert; 8, edge compression rib; 9, guide rod; 10, guide hole; 11, first wedge; 12, second wedge; 13, positioning block; 14, positioning groove; 15, buffer pad. DETAILED DESCRIPTION

[0018] The utility model makes further detailed description in combination with the drawings.

[0019] Please refer to Figs. 1 to 3 In order to realize the above-mentioned purpose, the utility model provides the following technical scheme:

[0020] A kind of automobile longitudinal beam reinforcing plate drawing die, including base 1, the upper portion of base 1 is equipped with lower die seat 2, wherein the upper portion of lower die seat 2 is equipped with the upper die seat 3 compatible therewith;First installation slot 4 is opened in the upper end of lower die seat 2, wherein male die core 5 is arranged in first installation slot 4;Second installation slot 6 is opened in the lower end of upper die seat 3, wherein female die cavity 7 is arranged in second installation slot 6, and male die core 5 is arranged in female die cavity 7;The opening end of female die cavity 7 is equipped with a circle of protruding edge compression rib 8 along its periphery, wherein edge compression rib 8 is in contact with the circumferential side of male die core 5, and drawing surface is formed between female die cavity 7 and male die core 5 and female die cavity 7 and edge compression rib 8.

[0021] Base 1 is the support basis of the whole die, and ensures the stability and safety of die when working;Lower die seat 2 is fixed on the upper portion of base 1, for installing male die core 5;Upper die seat 3 is arranged on the upper portion of lower die seat 2, and is compatible with lower die seat 2, and forms the closed space of die together;The upper end of lower die seat 2 is equipped with a first installation slot 4 for installing male die core 5, wherein the shape and size of male die core 5 are designed according to the shape and size of automobile longitudinal beam reinforcing plate, to ensure that material can be accurately pressed into the required shape during drawing process;The lower end of upper die seat 3 is equipped with a second installation slot 6 for installing female die cavity 7, and the shape of female die cavity 7 is compatible with male die core 5, when upper and lower die seat 2 is closed, male die core 5 can be completely embedded in female die cavity 7.

[0022] The open end of the concave die cavity 7 is provided with a raised edge trimming strip 8 along its periphery, and the main function of the edge trimming strip 8 is to prevent the material from overflowing from the die during the drawing process, and to help the material better fit the shape of the convex die core 5; when the upper and lower die seats 2 are closed, the edge trimming strip 8 is in close contact with the peripheral side of the convex die core 5, ensuring that the material is subjected to uniform pressure during the drawing process; the concave die cavity 7 and the convex die core 5, and the concave die cavity 7 and the edge trimming strip 8 together form a drawing surface, which is the main area where the material is plastically deformed during the drawing process; when the material is placed in the concave die cavity 7 and subjected to pressure from the convex die core 5, the material will plastically deform along the shape of the drawing surface, and finally be pressed into the required shape of the automobile beam reinforcing plate; the automobile beam drawing die can realize efficient and accurate drawing processing of the automobile beam reinforcing plate through the cooperation of the convex die core 5 and the concave die cavity 7, and the auxiliary role of the edge trimming strip 8.

[0023] Please refer to Fig. 2 、 Fig. 3 , as an embodiment of the utility model, the convex die core 5 is provided with a plurality of guide rods 9 around the periphery, wherein a plurality of guide holes 10 matched with the guide rods 9 are formed around the periphery of the concave die cavity 7.

[0024] In the above-mentioned scheme, the design of the guide rod and the guide hole is mainly to ensure that the convex die core 5 can accurately and accurately enter the concave die cavity 7 during the closing process of the upper die seat 3 and the lower die seat 2, which helps to avoid die misalignment and ensure the accuracy and consistency of the drawing surface; the guide rod 9 provides additional support for the convex die core 5 during die closing, which helps to reduce the deformation of the die under high pressure, thereby improving the durability and processing accuracy of the die.

[0025] Before the die starts working, the guide rods around the periphery of the convex die core 5 and the guide holes 10 around the periphery of the concave die cavity 7 are in a non-contact state; at this time, there is a certain gap between the upper die seat 3 and the lower die seat 2, so as to place the material in the concave die cavity 7; as the upper die seat 3 descends, the guide rod 9 first contacts the guide hole 10, and this process is smooth and gradual, which helps to reduce the impact and noise when the die is closed; under the guidance of the guide rod 9, the convex die core 5 gradually enters the concave die cavity 7 and is accurately aligned with the bottom and side wall of the concave die cavity 7, and during this process, the guide rod 9 plays a key positioning role, ensuring that the gap between the convex die core 5 and the concave die cavity 7 is uniform; when the convex die core 5 completely enters the concave die cavity 7, the die continues to apply pressure, causing the material to plastically deform along the shape of the drawing surface, and at this time, the guide rod 9 still maintains close contact with the guide hole 10, providing stable support for the convex die core 5; after the drawing process is completed, the upper die seat 3 rises, and the guide rod 9 and the guide hole 10 gradually separate, at which time the pressed automobile beam reinforcing plate can be removed.

[0026] Please refer to Fig. 2, as an embodiment of the utility model, male die core 5 includes a plurality of male die insert 501 fixed in first installation groove, wherein a plurality of male die insert 501 is sequentially assembled along the inner wall of first installation groove 4 and forms male die core 5, wherein a plurality of first wedge 11 is equidistantly arranged along the length direction of the inner wall of first installation groove 4, wherein one side of first wedge 11 is connected with first installation groove 4 slidingly, and the other side of first wedge 11 is abutted with male die insert 501.

[0027] In the above scheme, male die insert 501 is the basic constituent unit of male die core 5, each male die insert 501 is designed according to the specific part of the automobile longitudinal beam reinforcing plate, to ensure that the material can be accurately pressed into the required shape during drawing, when assembling male die core 5, a plurality of male die insert 501 is sequentially assembled along the inner wall of first installation groove 4, these male die insert 501 can be tightly spliced together to form a complete male die core 5 through accurate size and shape design, male die insert 501 can be fixed in first installation groove 4 through bolt, pin or other fastener, to ensure that no movement or deformation occurs during drawing, first wedge 11 is a special adjusting element, wherein first wedge 11 is equidistantly arranged along the length direction of first installation groove 4, and one side of each first wedge 11 is connected with first installation groove 4 slidingly, and the other side is abutted with male die insert 501, the main role of first wedge 11 is to adjust the gap and position between male die insert 501 and first installation groove 4, to ensure the accuracy and consistency of male die core 5, by sliding first wedge 11, the position of male die insert 501 can be fine-tuned, so that the gap caused by manufacturing error or assembly error is eliminated, male die core 5 is assembled by a plurality of male die insert 501, and is fine-tuned through first wedge 11, which not only improves the flexibility and adjustability of the die, but also ensures the accuracy and consistency of male die core 5, thereby improving the machining precision and product quality of automobile longitudinal beam reinforcing plate.

[0028] Please refer to Fig. 3 , as an embodiment of the utility model, concave die cavity 7 includes a plurality of concave die insert 701 fixed in second installation groove 6, wherein a plurality of concave die insert 701 is sequentially assembled along the inner wall of second installation groove 6 and forms concave die cavity 7, wherein a plurality of second wedge 12 is equidistantly arranged along the length direction of the inner wall of second installation groove 6, wherein one side of second wedge 12 is connected with second installation groove 6 slidingly, and the other side of second wedge 12 is abutted with concave die insert 701.

[0029] In the above-mentioned scheme, the die insert 701 is the basic unit of the die cavity 7, each die insert 701 is designed according to the specific shape and size of the automobile beam reinforcement plate to ensure accurate cooperation with the punch core 5 during the drawing process to form the required drawing surface; when assembling the die cavity 7, a plurality of die inserts 701 are assembled in sequence along the inner wall of the second mounting groove 6; wherein the die insert 701 is tightly spliced together to form a complete die cavity 7 through accurate size and shape design; the die insert 701 can be fixed in the second mounting groove 6 by bolts, pins or other fasteners to ensure that it does not move or deform during the drawing process; the second wedge 12 is a special element for adjusting the position and gap of the die insert 701, wherein the second wedge 12 is equidistantly arranged along the length direction of the second mounting groove 6, and one side of each second wedge 12 is slidingly connected with the second mounting groove 6, and the other side is abutted with the die insert 701; the main function of the second wedge 12 is to fine-tune the gap and position between the die insert 701 and the inner wall of the second mounting groove 6 to ensure the accuracy and consistency of the die cavity 7; by sliding the second wedge 12, the position of the die insert 701 can be accurately adjusted, thereby eliminating the gap caused by manufacturing or assembly errors; the die cavity 7 is assembled by a plurality of die inserts 701, and is fine-tuned by the second wedge 12, which not only improves the flexibility and adjustability of the die, but also ensures the accuracy and consistency of the die cavity 7; this design is of great significance to improve the machining precision and product quality of the automobile beam reinforcement plate.

[0030] Please refer to Fig. 2 , Fig. 3 , as an embodiment of the utility model, two groups of positioning blocks 13 are symmetrically arranged below the two ends of the upper die seat 3, and positioning grooves 14 adapted to the positioning blocks 13 are formed in the upper part of the two ends of the lower die seat 2.

[0031] In the above-mentioned scheme, the positioning block 13 is part of the upper die seat 3, which is symmetrically arranged below the two ends of the upper die seat 3, wherein the shape and size of the positioning block 13 are adapted to the positioning groove 14 formed in the upper die seat 2, to ensure that it can be accurately inserted into the positioning groove 14 during the closing process; the positioning groove 14 is part of the lower die seat 2, which is formed in the upper part of the two ends of the lower die seat 2 and corresponds to the positioning block 13, and the shape and size of the positioning groove 14 are completely consistent with those of the positioning block, so that the positioning block 13 can be smoothly inserted into the positioning groove 14; before the mold starts to close, the positioning block 13 is first aligned with the positioning groove 14, and as the upper die seat 3 descends, the positioning block 13 gradually inserts into the positioning groove 14 until they are completely in contact and locked together, which ensures the accurate alignment between the upper die seat 3 and the lower die seat 2, thereby ensuring the accuracy and consistency of the drawing surface.

[0032] The cushion pad 15 is a layer of soft material arranged on the two side walls of the positioning block 13, which is in close contact with the inner wall of the positioning groove 14. The material of the cushion pad 15 is usually selected to be a material with good elasticity and wear resistance, such as rubber or polyurethane, etc. During the clamping process, when the positioning block 13 is inserted into the positioning groove 14, the cushion pad 15 can absorb and disperse the impact force, reduce the vibration and noise of the mold, which not only helps to protect the mold from damage, but also improves the stability and service life of the mold. The cushion pad 15 can also prevent direct friction and wear between the positioning block 13 and the positioning groove 14, thereby prolonging the service life of them. At the same time, the elasticity of the cushion pad can also compensate for the small gap caused by manufacturing errors or assembly errors, ensuring the close contact between the positioning block 13 and the positioning groove 14.

[0033] DETAILED DESCRIPTION, it should be understood that these are only illustrative, the protection scope of the present application is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present application, but these changes and modifications all fall within the protection scope of the present application.

Claims

1. A drawing die for reinforcing plate of automobile longitudinal beam, comprising a base (1), a lower die seat (2) is arranged above the base (1), wherein a upper die seat (3) which is matched with the lower die seat (2) is arranged above the lower die seat (2); characterized in that, The lower die seat (2) upper end is provided with a first installation slot (4), wherein the first installation slot (4) is provided with a male die core (5); the upper die seat (3) lower end is provided with a second installation slot (6), wherein the second installation slot (6) is provided with a female die cavity (7), and the male die core (5) is arranged in the female die cavity (7); the female die cavity (7) opening end is provided with a raised edge rib (8) along the periphery thereof, wherein the edge rib (8) is in abutment with the periphery of the male die core (5), and the female die cavity (7) and the male die core (5) and the female die cavity (7) and the edge rib (8) form a drawing surface.

2. The draw die for reinforcing plate of automobile rail according to claim 1, wherein, The periphery of the male die core (5) is provided with a plurality of guide rods (9), wherein the periphery of the female die cavity (7) is provided with a plurality of guide holes (10) matched with the guide rods (9).

3. The draw die for reinforcing plate of automobile beam according to claim 1, characterized in that, The male die core (5) comprises a plurality of male die inserts (501) fixed in the first installation slot (4), wherein the plurality of male die inserts (501) are sequentially assembled along the inner wall of the first installation slot (4) to form the male die core (5).

4. The draw die for reinforcing plate of automobile beam according to claim 3, characterized in that, The inner wall of the first installation slot (4) is provided with a plurality of first wedges (11) equidistantly arranged along the length direction thereof, wherein one side of the first wedge (11) is in sliding connection with the first installation slot (4), and the other side of the first wedge (11) is in abutment with the male die insert (501).

5. The draw die for reinforcing plate of automobile beam according to claim 1, wherein, The female die cavity (7) comprises a plurality of female die inserts (701) fixed in the second installation slot (6), wherein the plurality of female die inserts (701) are sequentially assembled along the inner wall of the second installation slot (6) to form the female die cavity (7).

6. The draw die for reinforcing plate of automobile beam according to claim 5, characterized in that, The inner wall of the second installation slot (6) is provided with a plurality of second wedges (12) equidistantly arranged along the length direction thereof, wherein one side of the second wedge (12) is in sliding connection with the second installation slot (6), and the other side of the second wedge (12) is in abutment with the female die insert (701).

7. The draw die for reinforcing plate of automobile beam according to claim 1, characterized in that, The upper die seat (3) is symmetrically provided with two groups of positioning blocks (13) below both ends thereof, wherein the lower die seat (2) is provided with positioning slots (14) matched with the positioning blocks (13) above both ends thereof.

8. The draw die for reinforcing a beam of an automobile according to claim 7, wherein The positioning blocks (13) are provided with buffer pads (15) on both side walls thereof, wherein the buffer pads (15) are in abutment with the inner wall of the positioning slot (14).

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