Auxiliary calibration device for headlamp of urban rail train

Abstract

An auxiliary calibration device for a headlamp of an urban rail train belongs to the field of auxiliary devices for high beam calibration and comprises two rail clamping seats fixedly connected with the auxiliary calibration device, an illuminance centering mechanism, a large-scale transverse and longitudinal sliding rail mechanism, a projection screen with a rectangular coordinate system, a two-dimensional horizontal sliding table and a computer. According to the invention, observable and measurable dominance of the vertical central symmetry plane and the transverse central symmetry plane of the square base platform can be realized respectively; the difficulty of light spot diameter measurement and calculation operation is greatly reduced, and the working efficiency is remarkably improved; and a rectangular coordinate conversion coordinate system jointly established by the large-scale transverse and longitudinal sliding rail mechanism and the two-dimensional horizontal sliding table is used for replacing a three-dimensional printing platform which is expensive, heavy and difficult to move, the production cost can be greatly reduced, and the adaptation flexibility of an application scene is improved.

Description

technical field [0001] The invention belongs to the field of high beam calibration auxiliary devices, and in particular relates to an auxiliary calibration device for urban rail train headlights. Background technique [0002] The central symmetry plane refers to a virtual cutting plane that can symmetrically divide an object with a symmetrical structure into two parts that are mirror images of each other. The line segment formed by connecting any two symmetrical points on the object that are mirror-symmetrical to the central symmetry plane is connected to each other. The midpoints of the line segments are all on the central symmetry plane. [0003] The high beam of the head car of the train is also called the headlight of the train. It needs to be adjusted and calibrated according to the requirements of different projects before leaving the factory. [0004] Existing evaluation methods such as Figure 1 to Figure 3 As shown, the projection screen 1 is vertically fixed on th...

AI Technical Summary

Problems solved by technology

[0010] In order to solve the problem that the headlamps of different types of trains have a variety of completely different headlamp spacing values ​​and vertical height values, and the coordinate values ​​of the projection point spatial position and the centerline position of the projection screen given in advance by the theoretical size of the drawing are not in the projection It is intuitively displayed on the screen. As a result, in the actual production process, the calibration and debugging process of the optical axis of the train headlight requires the cooperation of multiple operators to carry out a large number of drawing rulers, marking lines, recordings, and calculations. The operation process is extremely cumbersome. The amount of tasks is large, the resources of the workshop are occupied, manpower and material resources are seriously wasted, and the production cycle is delayed, which restricts the further improvement of production efficiency. The invention provides an auxiliary calibration device for headlights of urban rail trains

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