Outward opening door unlocking device for fatigue test of automobile door

Abstract

The invention relates to an outward opening door unlocking device for a fatigue test of an automobile door, and belongs to the field of automobile component testing and manufacturing technologies. Thedevice is mainly used for performing a fatigue durability test on the automobile door. The device mainly comprises an elastic rope, a sliding block mechanism, a U-shaped base, a spherical hinge structure, a rubber gasket and the like, wherein the rubber gasket is installed in a U-shaped opening of the U-shaped base and used for eliminating an impact force generated by opening and closing the doortogether with the elastic rope, the sliding block mechanism comprises moving blocks, sliding blocks and springs, and the sliding block mechanism is used for counteracting an elastic distance betweenthe mechanisms, so that the automobile door is ensured not to be excessively opened or closed. The spherical hinge is used for eliminating the additional torque of the mechanism, thereby avoiding an additional force from being applied to a handle of the automobile door. The outward opening door unlocking device is simple in structure and easy to implement, can greatly improve the test accuracy andhas popularization values.

Description

technical field [0001] The invention relates to an unlocking device for an outward-opening door used in an automobile door fatigue test, and belongs to the technical field of automobile parts test and manufacture. Background technique [0002] The car door is a key moving part of the car body, which plays an important role in protecting the safety of people in the car. Usually, the fatigue durability of the door has an important impact on whether it can function. Therefore, in the process of car body design and development, the fatigue durability of the car door must be paid attention to. . Generally, when doing the door opening and closing durability test, the door handle is unlocked through the cylinder. This unlocking method needs to punch a hole in the door in advance, and then fix the cylinder barrel on the door through tooling. On the one hand, it will On the other hand, the direct rigid connection between the cylinder and the door handle will not only cause damage to...

AI Technical Summary

Problems solved by technology

Generally, when doing the door opening and closing durability test, the door handle is unlocked through the cylinder. This unlocking method needs to punch a hole in the door in advance, and then fix the cylinder barrel on the door through tooling. On the one hand, it will On the other hand, the direct rigid connection between the cylinder and the door handle will not only cause damage to the door handle, but also cannot simulate the flexible force when the door is opened by a human hand

In addition, the mechanical arm connected to the door unlocking mechanism is made of aluminum alloy. Due to the effect of gravity, it cannot be guaranteed that it is in the same plane as the outer handle of the door when building the test bench, which will generate additional torque on the door handle and cause damage to the door. , so it is necessary to propose a new unlocking mechanism that can not only slow down the contact impact, but also eliminate the additional torque during the test

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