Coaxiality and symmetry degree detection device and detection method

Abstract

The invention relates to a coaxiality and symmetry degree detection device and detection method, belongs to the technical field of coaxiality and symmetry degree detection, and solves the problem thatno device for detecting the coaxiality and symmetry degree of a folding rudder stepped hole exists in the prior art. The coaxiality and symmetry degree detection device comprises a positioning frameand a positioning shaft, wherein the positioning frame is a cylinder and comprises a matching section and a first detection section, and the first detection section is inserted into a first hole of the coaxiality to be detected; and the positioning shaft is a hollow cylinder and comprises a second detection section and an internal cavity corresponding to the second detection section, the second detection section is inserted into a second hole with the coaxiality to be detected, and the matching section is inserted into the internal cavity. According to the coaxiality and symmetry degree detection device and the detection method, high-precision detection of the coaxiality and the symmetry degree of the folding rudder stepped hole is realized.

Description

technical field [0001] The invention relates to the technical field of coaxiality and symmetry detection, in particular to a coaxiality and symmetry detection device and detection method for a folded rudder step hole. Background technique [0002] In order to facilitate the storage and transportation of airborne guidance equipment and increase the load capacity of the on-hook platform, folding rudder surface structures have been widely used in airborne guidance equipment. [0003] Folding rudder surfaces are divided into horizontal folding and longitudinal folding according to the direction of folding movement. Horizontal folding rudder surfaces usually use torsion springs as the power source for unfolding, relying on the constraints of the launch tube wall or the pin limit of the pin puller as the initial lock, so that the rudder surface is collapsed. [0004] When the folding rudder surface is from the folded state to the unfolded state, the folding rudder step hole is us...

AI Technical Summary

Problems solved by technology

[0004] When the folding rudder surface is from the folded state to the unfolded state, the folded rudder step hole is used as the central axis, and a shaft structure that can rotate smoothly is installed in it. In order to ensure the assembly mechanism Accessibility, the shaft structure is mostly segmented, which requires a high degree of coaxiality between the segments, otherwise, in the process of folding and unfolding, it is very easy to appear the phenomenon of rotation jamming, resulting in failure to unfold in place , affecting the working performance of the product, therefore, the coaxiality of the folded rudder step hole is an important indicator to ensure the working performance of the rudder surface

[0005]Because the folded rudder step hole is so important, the precision requirements for the coaxiality and symmetry of the folded rudder step hole are very high. There is no device for detecting the coaxiality of the step hole, and there is no device for detecting the symmetry of the step hole of the folding rudder, and there is no detection device that can detect both the coaxiality of the step hole of the folding rudder and the step hole of the folding rudder Symmetry

Images