Method for realizing mechanical zero position detection adjustment by monochromatic light imaging

Abstract

The invention discloses a method for realizing mechanical zero position detection adjustment by monochromatic light imaging, and an adopted device specifically relates to four parts: a supporting mechanism, a driving mechanism, an optical mechanism and a tool to be detected. The specific structure is composed of an aluminum profile support, a marble support, a marble platform, a servo motor, a speed reducer, an optical support, an industrial camera, a coaxial parallel light source, a tool to be detected, a coding disc and a customized universal joint. According to the invention, the servo motor drives the whole mechanism to rotate, the positioning pin to be detected is colored, the industrial camera shoots the relative position of the positioning pin, and zero setting detection is carried out on the mechanical zero position of the mechanism. The mechanical structure is simple, trivial high-precision mechanical structure machining is avoided, and the installation difficulty is greatly reduced; meanwhile, the detection mode based on digital image processing can avoid machining errors caused in the machining process as much as possible, and the detection precision is remarkably improved.

Description

technical field [0001] The present invention relates to the field of aerospace and aviation, and more specifically relates to a method for realizing mechanical zero position detection and adjustment by means of monochromatic light imaging. Background technique [0002] There is a zero adjustment mechanism, which is used to adjust the zero position of a rotatable mechanism. The adjusted mechanism is used to drive the subsequent device to rotate, so it is necessary to ensure that the deviation between the mechanical zero position and the electrical zero position is within a certain range of accuracy. So it needs to be zeroed. There are two positioning pin holes on the mechanism to be zeroed, and the horizontal position of these two pins is taken as the mechanical zero position, and these two positioning pin holes need to be adjusted to make them completely horizontal. The device has a servo motor and a reducer, which can drive the tooling to be zeroed to rotate. It is designe...

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to solve the problems of simple mechanical structure, complex installation steps and high requirements on the precision of each component of the existing zero-adjustment device, and proposes a method for realizing mechanical zero-position detection and adjustment relying on monochromatic light imaging. The method replaces the traditional measurement and sensing mechanism with an optical mechanism, which has a high degree of automation and minimizes the influence of machining errors and matching errors on the final zero-adjustment results during machining and installation.

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