A Honeycomb Core Surface Shape Measuring Device

A technology for measuring devices and honeycomb cores, which is applied in the direction of measuring devices, optical devices, instruments, etc., can solve the problem of not being able to obtain the specific surface shape of the honeycomb core material, and achieve the effects of rich information, convenient operation, and high measurement accuracy
CN106017353BActive Publication Date: 2019-07-16DALIAN UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
DALIAN UNIV OF TECH
Publication Date
2019-07-16

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Abstract

The invention discloses a honeycomb core surface shape measuring device, which comprises a laser measuring sensor, a measurement motion system, a reflecting film vacuum absorbing system, a reflecting film laying system, a motion control system for controlling the measurement motion system, and a data processing system for processing data of the laser measuring sensor, wherein the reflecting film laying system coats a reflecting film on a surface to be measured of a honeycomb core, the reflecting film vacuum absorbing system performs vacuum adsorption on the reflecting film so that the reflecting film is closely adhered to the surface to be measured of the honeycomb core, and the reflecting film at honeycomb hole lattices is recessed downwards; and the laser measuring sensor installed in the measurement motion system is controlled by the motion control system for scanning the honeycomb core three-dimensionally so as to obtain honeycomb wall heights of the honeycomb core at different spatial positions, and acquiring a surface shape of the honeycomb core by means of the data processing system. By adopting the method of coating the reflecting film on the surface of the honeycomb core, the honeycomb core surface shape measuring device solves the problem that the surface shape is difficult to measure due to discontinuous characteristic of porous thin walls of the honeycomb core.
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Description

technical field

[0001] The invention relates to a measuring device for the surface shape of a workpiece, in particular to a measuring device for the surface shape of a honeycomb core. Background technique

[0002] At present, honeycomb cores are widely used in the field of aerospace, mainly for the preparation of honeycomb sandwich structures. The manufacturing process includes: firstly processing the upper and lower surfaces of the honeycomb core member to the designed complex curved shape, and then bonding it with a preformed layer of thin plates (usually carbon fiber composite plates) with opposite curved shapes. The processing accuracy of the curved surface of the honeycomb core determines the reliability of its bonding with the upper and lower sheets, which in turn affects the performance of the entire sandwich structure. Therefore, before bonding after processing, the processing accuracy of the complex curved surface of the honeycomb core must be tested, and the compo...

Claims

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