A structure for solving extrusion bulging problem of complex sheet metal stamping part
Patent Information
- Application Number
- CN202522061527.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-25
- Publication Date
- 2026-09-22
- Estimated Expiration
- 2035-09-25
AI Technical Summary
一种解决复杂钣金冲压件挤料鼓包问题的结构，在钣金件容易鼓包区域，设置凸台结构，所述凸台结构设置为圆形，凸台结构高于钣金平面3-5mm，凸台结构与钣金平面通过圆弧过渡，凸台结构直径根据钣金件鼓包区域面积确定
[0007]本实用新型结构在解决材料挤压问题的同时，能够尽可能小的影响零件刚度，同时该方案有利于提高零件的强度及耐久性能。
Smart Images
Figure CN224782099U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automobile manufacturing, specifically to a structure for solving the problem of extrusion bulging in complex sheet metal stamping parts. Background Technology
[0002] For large and complex sheet metal stamping parts, such as the upper and lower covers of the subframe, the sheet metal may deform and bulge during the stamping process due to material compression. This results in the final sheet metal part not conforming to the design intent, which in turn affects the rigidity, strength, and durability of the assembly formed by welding the stamped parts, thus impacting the overall vehicle performance. Specifically, for example... Figure 1 As shown, sheet metal stamping parts with large and complex shapes (such as the upper and lower covers of the subframe) are... Figure 1 Square areas are prone to sheet metal extrusion, which can cause bulges on the sheet metal surface.
[0003] To address this issue, adding a sufficiently large stamping hole to the bulging area can solve the problem, but this solution has a significant impact on the strength and durability of the part and is not suitable for all structures. Utility Model Content
[0004] To address the aforementioned problems, this invention proposes a novel structure that can resolve material extrusion issues while ensuring the rigidity, strength, and durability of the assembly. The specific technical solution is as follows: A structure for solving the problem of extrusion bulging in complex sheet metal stamping parts is provided by setting a boss structure in the area of the sheet metal part that is prone to bulging. The boss structure is circular and is 3-5mm higher than the sheet metal plane. The boss structure and the sheet metal plane are transitioned by an arc. The diameter of the boss structure is determined according to the area of the bulging area of the sheet metal part.
[0005] Furthermore, the diameter of the boss is set to 3-10cm.
[0006] Furthermore, multiple boss structures can be set according to the area of the bulge region of the sheet metal part. If the bulge area of the sheet metal part is large, multiple bosses with smaller diameters can be set, or a single boss with a larger diameter can be selected.
[0007] This invention solves the problem of material extrusion while minimizing the impact on the rigidity of the parts. At the same time, this solution helps to improve the strength and durability of the parts. Attached Figure Description
[0008] Figure 1 Schematic diagram of bulges in sheet metal parts in the prior art; Figure 2 Schematic diagram of the boss structure of this utility model; Figure 3 Side view of the boss structure of this utility model. Detailed Implementation
[0009] 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.
[0010] like Figure 2 and 3 As shown, a structure for solving the problem of extrusion bulging in complex sheet metal stamping parts is provided. In the area of the sheet metal part that is prone to bulging, a boss structure is provided. The boss structure is circular and is 3-5mm higher than the sheet metal plane. The boss structure and the sheet metal plane are transitioned by an arc. The diameter of the boss structure is determined according to the area of the bulging area of the sheet metal part.
[0011] The diameter of the boss is set to 3-10cm. Multiple boss structures are set according to the area of the bulge area of the sheet metal part.
[0012] The preferred embodiments of this patent have been described in detail above. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.
Claims
1. A structure for solving the problem of extrusion bulging in complex sheet metal stamping parts, characterized in that: In areas of sheet metal parts prone to bulging, a boss structure is provided. The boss structure is circular and is 3-5mm higher than the sheet metal plane. The boss structure and the sheet metal plane are transitioned by an arc. The diameter of the boss structure is determined according to the area of the bulging area of the sheet metal part.
2. The structure for solving the problem of extrusion bulging in complex sheet metal stamping parts according to claim 1, characterized in that: The diameter of the boss is set to 3-10cm.
3. The structure for solving the problem of extrusion bulging in complex sheet metal stamping parts according to claim 1, characterized in that: Multiple boss structures are set according to the area of the bulge area of the sheet metal part.