Assembly structure and assembly method of automobile fender and bumper

Abstract

The invention discloses an assembly structure of a wheel fender and a bumper of an automobile and an assembly method thereof. The assembly structure comprises the wheel fender, a wheel fender support connected with the wheel fender, the bumper and a bumper side support connected with the bumper; the two ends of the flanging surface of the wheel fender are symmetrically provided with a first wheel fender fixing hole and a second wheel fender fixing hole, and the wheel fender support is provided with a first wheel fender support fixing hole corresponding to the first wheel fender fixing hole and a second wheel fender support fixing hole corresponding to the second wheel fender fixing hole. According to the assembly structure, fixation among the bumper, the bumper side support, the wheel fender and the wheel fender support is achieved by adopting rivets, the part number is decreased, the production cost is lowered, and the assembly efficiency is improved; the bumper is preassembled with the bumper side support by adopting sliding connection, the design is reasonable, operation is easy, manpower is saved, and after-sales maintenance is convenient.

Description

technical field [0001] The invention relates to the technical field of auto parts, in particular to an assembly structure of an automobile bumper and a fender and an assembly method thereof. Background technique [0002] Automobile bumper is the appearance part, safety part and vulnerable part of the automobile. The surface difference, strength and disassembly convenience of the automobile bumper and the body after assembly have been paid more and more attention by people. A large number of traffic accident statistics show that in traffic accidents, the bumper of a car has the highest proportion of impacts and side impacts at an angle from the side. In this kind of angled impact, it is a test of the strength of the connection between the bumper and the front and rear fenders of the car body. At present, special designs are generally used for the positioning and fixing points between the bumper and the front and rear fenders of the car body. It is necessary to ensure the str...

AI Technical Summary

Problems solved by technology

[0005] However, the existing technology mainly has the following defects: (1) the number of connecting bolts used when the bumper is installed is large, and the length of the split between the bumper and the fender is limited, and the space area is limited. In order to arrange four bolts, the wing The installation direction of the connecting bolts of the sub-board and the fender bracket is opposite to that of the bumper and the bumper side bracket, and the bumper and the bumper side bracket need to install the connecting bolts between the fender and the fender. Avoidance increases the design difficulty of the bumper and bumper side brackets; (2) Although the bumper and bumper side brackets are connected by rivets, this work can be done by the supplier, which can improve the quality of the assembly workshop of the OEM. assembly efficiency, but the bumper is large in size and heavy in weight, and the pre-installation cannot be realized only by the cooperation between the bumper positioning pin, the first bumper positioning pin positioning hole and the second bumper positioning pin positioning hole, and the operator is tightening Before the bolts, the bumper must be supported upwards by hand, otherwise the bumper positioning pin will be loosened under the gravity of the bumper, resulting in the need for multiple operators to operate the bumper at the same time, resulting in an increase in working hours and the number of workers; (3) One of the two fixing bolts on the bumper is close to the headlight of the car, and the installation space is very small. When installing the bolt at this position in the assembly workshop of the main engine factory, the headlight has not been installed, and the operation space may be improved, but after-sales disassembly of this When installing the bolts in the position, it is necessary to remove the headlight first, which brings inconvenience to after-sales maintenance

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