Car body deformation detector based on laser transmission

Abstract

The invention relates to a car body deformation detector based on laser transmission. The car body deformation detector comprises a front axle of a car and a rear axle as well as a first lateral axle and a second lateral axle located at two sides; a laser unit and a first metal reflecting plate are arranged on the front axle; a second metal reflecting plate is arranged on the first lateral axle; a third metal reflecting plate and a fourth metal reflecting plate are arranged on the rear axle; a receiving plate capable of detecting laser positions is arranged on the second lateral axle; the first metal reflecting plate, the second metal reflecting plate, the third metal reflecting plate, the fourth metal reflecting plate and the receiving plate are arranged vertically; laser emitted by the laser unit arrives at the receiving plate via the first metal reflecting plate, the second metal reflecting plate, the third metal reflecting plate and the fourth metal reflecting plate; the deformation position and the deformation degree of the car body are judged by the laser position on the receiving plate. The car body deformation detector based on laser transmission is quick and convenient to detect the deformation position and the deformation degree of the car body, is capable of positioning the whole deformation of the car body and has low detection cost.

Description

technical field [0001] The invention relates to a car body deformation detection device. Background technique [0002] When a car is running on a rough road, the frame may produce torsional deformation and bending deformation in the longitudinal plane; when one side of the wheel encounters an obstacle, the entire frame may be distorted into a rhombus; when a collision occurs, the collision The energy will be absorbed by the body, causing it to deform, and these deformations will directly act on the body that is fixed to the frame, and the repeated action of the load will deform the body. The deformation of the body will affect the relationship between the components and the assembly installed on it, causing interference, and will also affect the position of the axle wheels, accelerate the wear of the tires, reduce the fuel economy of the vehicle, and affect the driving performance. The car body will be broken due to fatigue damage and cracks in some parts, resulting in seri...

AI Technical Summary

Problems solved by technology

The mechanical three-dimensional system inspection uses a special inspection platform to accurately measure various dimensions, and then compares them with the factory data to finally determine the degree of deformation. Accuracy is limited, the accuracy of this technology is still relatively limited

Electronic measurement system detection uses computers and sensors to detect deformation, with high precision and accurate measurement, but the cost is the highest, and its practical application is not as extensive as mechanical three-dimensional system detection technology

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