Automotive rear floor reinforcement beam reinforcement assembly

Abstract

The invention discloses a stiffening-beam reinforcement assembly for automobile rear-floors, which comprises a stiffening-beam reinforcement, a rear trailing-arm nut sleeve mounting bracket and a reinforcement for the rear trailing-arm nut sleeve mounting bracket, wherein the stiffening-beam reinforcement is provided with a first turned-over edge, a second turned-over edge, a key-shaped positioning via-hole, a U-shaped welding bearing-platform, a circular welding boss and a yinyang-shaped round hole, and one side (provided with the first turned-over edge) of the stiffening-beam reinforcement is provided with an arc pit; the rear trailing-arm nut sleeve mounting bracket is provided with an inner threaded hole, a third turned-over edge and a fourth turned-over edge, and the fourth turned-over edge is welded with the arc pit; and the reinforcement for the rear trailing-arm nut sleeve mounting bracket is provided with a fifth turned-over edge and a foursquare welding bearing-platform, one side of the reinforcement is matched with the arc pit and welded on the arc pit, the fifth turned-over edge is welded on the second turned-over edge by way of spot welding, and the foursquare welding bearing-platform is welded on the stiffening-beam reinforcement by way of spot welding. The reinforcement assembly disclosed by the invention is good in stiffness and strength, and can be provided with a rear trailing arm.

Description

technical field [0001] The invention relates to automobile body parts, in particular to an automobile rear floor reinforcement beam reinforcement assembly. Background technique [0002] The force load on the rear floor reinforcement beam of the car is relatively large. In order to make the car run smoothly and safely, the general car has reinforcements in this part to enhance the load bearing capacity of the rear floor reinforcement beam. [0003] Existing car rear floor reinforcement beam reinforcement assembly, such as Figure 7 As shown, the structural features of the reinforcement beam reinforcement 1 are rather complex and complex. The reinforcement beam reinforcement 1 is provided with three Yin-Yang-shaped round holes 14, and some irregularly arranged welding sinks are arranged. The Yin-Yang shape is found after stamping. The process performance and mechanical properties of the round hole 14 after forming are not ideal, which affects the positioning effect of the rein...

AI Technical Summary

Problems solved by technology

[0003] Existing car rear floor reinforcement beam reinforcement assembly, such as Figure 7 As shown, the structural features of the reinforcement beam reinforcement 1 are rather complex and complex. The reinforcement beam reinforcement 1 is provided with three Yin-Yang-shaped round holes 14, and some irregularly arranged welding sinks are arranged. The Yin-Yang shape is found after stamping. The process performance and mechanical properties of the round hole 14 after forming are not ideal, which affects the positioning effect of the reinforcement beam reinforcement 1. After CAE analysis (that is, the use of computer-aided solutions to analyze the structural mechanical properties of complex projects and products), it is found that the welding sinking The irregular arrangement structure of the reinforced beam reinforcement 1 makes the ability of bearing and transmitting force poor; at the same time, the existing reinforced beam reinforcement 1 does not consider the installation problem with the rear trailing arm, and the rear trailing arm of the automobile directly uses bolts Connected to the rear floor reinforcement beam of the car, the nut mounting holes set on the rear floor reinforcement beam affect the rigidity of the rear floor reinforcement beam, and the layout structure is relatively crowded, which is not conducive to the layout of other components, which limits the improvement of the overall quality of the car

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