Auxiliary tool and method for quickly centering steering wheel axis

Abstract

The invention provides an auxiliary tool and a method for quickly centering the axis of a steering wheel and relates to the technical field of manufacturing and debugging of vehicles. The auxiliary tool comprises light positioning components and T-shaped rulers, wherein each light positioning component comprises a fixed base, a flexible connecting part and a linear light source, wherein each fixedbase is fixed to a glass window of a vehicle; each flexible connecting part is connected with the corresponding fixed base; each linear light source is installed at the movable end of the corresponding flexible connecting part; each T-shaped ruler comprises a horizontal ruler and a vertical ruler which is connected with the horizontal ruler; the central axis of the length of each vertical ruler is perpendicular to the central axis of the length of the corresponding horizontal ruler and passes through the midpoint of the central axis of the length of the corresponding horizontal ruler, whereineach horizontal ruler is provided with a length scale; each vertical ruler comprises a lathy through hole formed in the direction of the central axis of the length; and the center line of each lathythrough hole is overlapped with the central axis of the length of the corresponding vertical ruler. The auxiliary tool provided by the invention fully utilizes the existing equipment such as an adapter of which the horizontal scroll has a hole; the used auxiliary equipment only includes two light positioning components and two T-shaped rulers; linear light is used as reference for observation andcollimation, so the auxiliary tool preferably satisfies the principles of optics and is high in precision.

Description

technical field [0001] The invention relates to the technical field of vehicle manufacturing and debugging, in particular to an auxiliary tool for quickly centering the axis of a steering wheel and a method for quickly centering the axis of the steering wheel. Background technique [0002] At present, the automobile KC test (K&C is the abbreviation of Kinematics kinematics and compliance compliance, the interaction between the two affects the vehicle handling and stability performance, the corresponding K&C test is to test the kinematics and compliance performance of the chassis suspension system and steering system The US MTS company test bench used in the engineering test of the test) needs to install a steering robot when doing the steering test, and the steering robot is connected to the steering wheel of the test vehicle through the adapter connected to the steering wheel. The installation method of the adapter provided by MTS for the steering wheel is as follows: rotat...

AI Technical Summary

Problems solved by technology

[0003] Since the shape of the vehicle steering wheel is mostly irregular circle, the installation method provided by MTS can only ensure that the steering wheel and the adapter are approximately concentric, and the coaxiality can only be observed with the naked eye during the adjustment process, and the error is large, resulting in the dynamic test. When turning, the robot produces a radial runout during the steering process, so the test data curve will have certain fluctuations on the command trajectory, and the measured steering torque value increases significantly, which cannot fully meet the test requirements

[0004] There is no suitable datum between the adapter and the end face of the steering column. It is not only difficult to meet the test accuracy requirements only by visually observing the coaxiality, but also it is necessary to start the vehicle and turn the steering wheel repeatedly to check the runout of the adapter and adjust the length of the spokes. Difficult, time-consuming and difficult to meet the test accuracy requirements

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