D-pillar structure for automobile and method of making the same

Abstract

The invention discloses a D-pillar structure for automobiles and a method for manufacturing the same, belonging to the field of automobiles. The D-pillar structure for automobiles includes a side wall assembly, a lower body assembly, a roof outer panel, a rear roof beam reinforcement plate, and a rear roof beam inner panel, the upper end of the side wall assembly, a roof outer panel, and a rear roof beam The reinforcement plate and the inner panel of the rear roof beam are fixedly connected to each other, and the lower end of the side wall assembly is fixedly connected to the lower body assembly. The side wall assembly includes the side wall outer panel assembly and the side wall inner panel assembly, and the side wall inner panel assembly It includes a D-pillar reinforcement panel assembly and a rear inner panel assembly, wherein the rear inner panel assembly is provided with a partition for enhancing the bearing capacity of the vehicle body. In the D-pillar structure for automobiles provided by the present invention and the method for manufacturing it, the diaphragm is arranged on the D-pillar structure to effectively improve the rigidity mode; the D-pillar reinforcement plate extends to the rear wall connecting plate to form an effective force transmission path; the D-pillar reinforcement plate The welding position of the connecting plate on the top beam and the rear top beam of the top cover avoids the skeleton welding spot, which reduces the difficulty of the process and improves the work efficiency.

Description

technical field [0001] The invention relates to the field of automobiles, in particular to a D-pillar structure for automobiles and a method for manufacturing the same. Background technique [0002] The D-pillar structure is the key to the body frame, and its structure directly affects the stiffness and mode of the body frame. If the stiffness of the body frame is insufficient, it is easy to cause local deformation of the body. [0003] In order to effectively improve the stiffness and modulus of the body frame, the D-pillar structure usually contains more parts, such as the roof, the rear beam outer panel, the rear beam inner panel, the D-pillar upper reinforcement panel, and the rear side wall outer panel , D-pillar upper outer panel and rear side wall outer panel. However, when the body is subjected to external forces, large deformations and even cracks will occur in places where the stress is relatively concentrated. [0004] In the process of realizing the present inv...

AI Technical Summary

Problems solved by technology

[0005] (1) Difficult stamping and forming of parts with D-pillar structure, low material utilization rate;

[0006] (2) It is difficult to realize the welding spot of the body frame;

[0007] (3) When the local strength stress of the car body is concentrated, it is easy to cause cracking;

[0008] (4) The body stiffness mode is low

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