Front wall panel stamping die

Abstract

The utility model discloses a front wallboard stamping die relates to the field of automobile manufacturing. The front wallboard stamping die, including die holder, be installed in the die holder and be used for the drawing die of automobile front wallboard stamping forming, the draw line of drawing die's parting extends to the periphery of die holder, and the draw line extension area integrative forming has the edge ring and technological supplementary surface, the draw line extension setting is used for adapting the modeling filling requirement of front wallboard notch, to reduce the blanking die in traditional stamping process. The front wallboard stamping die, through the draw line of drawing die's parting extends to the periphery of die holder, and utilizes the technological supplementary surface filling of draw line extension area integrative forming and makes up front wallboard notch modeling, directly dispenses with the blanking die of traditional technology, reduces a whole cycle investment of a set of frock, solves the problem of high cost of traditional five -process frock.

Description

Technical Field

[0001] This utility model relates to the field of automobile manufacturing, and in particular to a front panel stamping die. Background Technology

[0002] In the field of automotive parts stamping manufacturing, the front panel, as a key structural component of the car body, directly affects the overall vehicle manufacturing cycle and cost due to its forming quality and production efficiency. Traditional stamping processes employ a five-step workflow, requiring the part to be formed sequentially through a blanking die, a drawing die, a trimming and punching die, and a flanging and shaping die. This process suffers from two major pain points: Firstly, tooling development costs are high. Traditional processes require an additional investment in the design, manufacturing, and maintenance of a blanking die, which must be precisely matched with subsequent drawing dies, further increasing the overall investment in tooling. Secondly, production efficiency is low. The additional blanking process lengthens the production cycle, and extra adjustments to the sheet metal positioning are required during process transitions, making it difficult to meet the cost reduction and efficiency improvement needs of the automotive manufacturing industry under large-scale production.

[0003] A deeper technical bottleneck lies in the fact that the front panel has a specific notch shape. The parting line design of traditional stretching dies is limited to the main body area of ​​the part and cannot directly adapt to the forming requirements of the notch. If the sheet metal is not pre-cut using a blanking die, quality defects such as insufficient forming, wrinkles, or cracks are prone to occur at the notch. If the blanking die is retained, the problem of high cost and low efficiency is returned. Therefore, how to improve the mold structure to ensure the forming quality of the front panel while eliminating the blanking die has become a technical problem that urgently needs to be solved in the industry. Utility Model Content

[0004] The purpose of this invention is to provide a front panel stamping die to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a front panel stamping die, including a die base, wherein a stretching die for stamping automotive front panels is installed in the die base, the parting line of the stretching die extends to the periphery of the die base, and the parting line extension area is integrally formed with a pressure ring and a process supplement surface, the parting line extension is configured to adapt to the shaping and filling requirements of the front panel notch, so as to reduce the blanking die in the traditional stamping process.

[0006] Preferably, the die holder has a pressing area that matches the shape of the stretching die. The stretching die is embedded in the pressing area, and the outer periphery of the stretching die fits against the inner wall of the pressing area to ensure the stability of the stretching die during the stamping process.

[0007] Preferably, the mold base has multiple guide holes.

[0008] Preferably, the guide holes are evenly distributed circumferentially along the molding area, and the guide holes are used to cooperate with external guide pillars to guide the mold during mold closing, so as to avoid mold closing deviations that lead to defects in the front wall panel forming.

[0009] Preferably, the contours of the pressure ring and the process supplement surface are adapted to the outer contour of the front wall panel.

[0010] The technical effects and advantages of this utility model are as follows: 1. This front panel stamping die, by extending the parting line of the stretching die to the outer perimeter of the die base and using the integral forming process of the extended parting line area to fill the gap in the front panel shape, directly eliminates the blanking die required in the traditional process, reducing the total cycle investment of a set of tooling and solving the problem of high tooling cost in the traditional five-process process. Because the blanking die process is eliminated, the front panel stamping process is simplified from the traditional five processes to four processes: stretching die forming, trimming and punching side trimming and punching die, flanging and shaping die, and trimming and punching side trimming and punching die. This not only reduces the process changeover time, but also eliminates the step of secondary positioning of the sheet metal after blanking, significantly shortening the production cycle and improving the efficiency of large-scale production.

[0011] 2. The front wall panel stamping die has two main features. First, the stretching die is embedded in the pressing area of ​​the die base, and the outer periphery of the stretching die is tightly fitted with the inner wall of the pressing area, which can effectively limit the displacement of the stretching die during the stamping process and avoid part size deviation caused by die wobbling. Second, the guide holes evenly distributed around the pressing area on the die base can precisely cooperate with the external guide pillars to prevent die closing deviation and avoid forming defects such as front wall panel notch cracks and irregular edges from the root. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the stretching die of this utility model.

[0013] In the diagram: 1. Die base; 11. Pressing area; 12. Guide hole; 2. Drawing die; 3. Blank holder; 4. Process supplementary surface. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] This utility model provides, for example Figures 1-2The front panel stamping die shown includes a die base 1, in which a drawing die 2 for stamping automotive front panels is installed. The parting line of the drawing die 2 extends outward from the die base 1, and the parting line extension area is integrally formed with a pressure ring 3 and a process supplement surface 4. The parting line extension is designed to adapt to the shaping and filling requirements of the front panel notch, thereby reducing the blanking die in the traditional stamping process.

[0016] By extending the parting line of the stretching die 2 to the periphery of the die base 1, and using the integrally formed process supplementary surface 4 of the parting line extension area to fill the gap in the front wall panel, the blanking die required in the traditional process is directly eliminated, reducing the total cycle investment of a set of tooling. This solves the problem of high tooling cost in the traditional five-process process. Due to the elimination of the blanking die process, the front wall panel stamping process is simplified from the traditional five processes to four processes: stretching die 2 forming, trimming and punching side trimming and punching die, flanging and shaping die, and trimming and punching side trimming and punching die. This not only reduces the process changeover time, but also eliminates the step of secondary positioning of the sheet metal after blanking, significantly shortening the production cycle and improving the efficiency of large-scale production.

[0017] Furthermore, the die base 1 has a pressing area 11 that is adapted to the shape of the stretching die 2. The stretching die 2 is embedded in the pressing area 11, and the outer periphery of the stretching die 2 is in contact with the inner wall of the pressing area 11 to ensure the stability of the stretching die 2 during the stamping process.

[0018] Furthermore, the mold base 1 is provided with multiple guide holes 12.

[0019] Furthermore, the guide holes 12 are evenly distributed along the circumference of the molding area 11, and the guide holes 12 are used to cooperate with the external guide pillars to guide the mold when it is closed, so as to avoid the molding defects of the front wall panel caused by the mold closing deviation.

[0020] On the one hand, the stretching die 2 is embedded in the pressing area 11 of the die base 1, and the outer periphery of the stretching die 2 is closely fitted with the inner wall of the pressing area 11, which can effectively limit the displacement of the stretching die 2 during the stamping process and avoid part size deviation caused by die shaking; on the other hand, the guide holes 12 evenly distributed around the pressing area 11 on the die base 1 can precisely cooperate with the external guide pillars to prevent die closing deviation and avoid forming defects such as front wall plate notch cracking and irregular edges from the root.

[0021] Furthermore, the contours of the pressure ring 3 and the process supplement surface 4 are adapted to the outer contour of the front wall panel.

[0022] Working principle: Start the stamping equipment and transport the sheet metal to be processed to the preset position between the stretching die 2 and the upper die (not shown in the diagram). The equipment drives the upper die to move downward, and the stretching die 2 begins to apply stamping pressure to the sheet metal. At this time, the parting line extended by the stretching die 2 is adapted to the shaping and filling requirements of the front wall panel notch. The process supplement surface 4 simultaneously fills the corresponding area of ​​the sheet metal notch. At the same time, the pressure ring 3 tightly presses the edge of the sheet metal to prevent wrinkling, displacement and other problems from occurring during the stretching process, ensuring that the main body of the front wall panel and the notch are fully formed and without defects.

[0023] After stamping is completed, the equipment lifts the upper die and removes the semi-finished front wall panel. Since the blanking die process is eliminated by the stretching die 2 and the matching structure, the semi-finished product does not need to be blanked and can directly enter the subsequent process flow: passing through the trimming and punching side trimming and punching die, the flanging and shaping die, and the trimming and punching side trimming and punching die in sequence, and finally completing the production of the qualified front wall panel.

[0024] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A front panel stamping die, comprising a die base (1), characterized in that, The mold base (1) is equipped with a stretching die (2) for stamping and forming the front wall panel of an automobile. The parting line of the stretching die (2) extends to the periphery of the mold base (1), and the parting line extension area is integrally formed with a pressure ring (3) and a process supplement surface (4). The parting line extension is set to adapt to the shape filling requirements of the front wall panel gap.

2. The front wall panel stamping die according to claim 1, characterized in that, The mold base (1) has a pressing area (11) that is adapted to the shape of the stretching mold (2). The stretching mold (2) is embedded in the pressing area (11), and the outer periphery of the stretching mold (2) is in contact with the inner wall of the pressing area (11).

3. The front wall panel stamping die according to claim 1, characterized in that, The mold base (1) has multiple guide holes (12).

4. A front wall panel stamping die according to claim 3, characterized in that, The guide holes (12) are evenly distributed along the circumference of the molding area (11), and the guide holes (12) are used to cooperate with the external guide pillars to guide the mold when it is closed.

5. A front wall panel stamping die according to claim 1, characterized in that, The contours of the pressure ring (3) and the process supplement surface (4) are adapted to the outer contour of the front wall panel.

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