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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

Active Publication Date: 2019-07-16
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This patent provides a method for measuring the flatness of the honeycomb core as a whole, but cannot obtain the specific surface shape of the honeycomb core material

Method used

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  • A Honeycomb Core Surface Shape Measuring Device
  • A Honeycomb Core Surface Shape Measuring Device
  • A Honeycomb Core Surface Shape Measuring Device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] like Figure 1-Figure 5 As shown, a honeycomb core surface shape measurement device includes: a laser measurement sensor 11, a measurement motion system, a reflective film vacuum adsorption system, a reflective film laying system, a motion control system that controls the measurement motion system and processes the laser A data processing system for the data measured by the measurement sensor;

[0065] The measuring motion system includes a horizontal two-dimensional motion platform that can move horizontally relative to the machine tool workbench and a vertical translation platform 13 fixed on the horizontal two-dimensional movement platform, and the vertical translation platform 13 is provided with the Laser measurement sensor 11;

[0066] The reflective film vacuum adsorption system includes a vacuum adsorption platform 24 installed in the machine tool workbench 1, the vacuum adsorption platform 24 is provided with a breathable fixing plate 8, and the breathable fix...

Embodiment 2

[0084] A device for measuring the shape of a honeycomb core, which differs from the device for measuring the shape of a honeycomb core described in Embodiment 1 in that: the transmission device is a sprocket transmission device.

[0085] The sprocket transmission device includes two chains and a driving sprocket and a driven sprocket matched with the chains. The driving sprocket is connected with the sprocket motor through the drive shaft II. The ends are fixedly connected to the two chains respectively.

[0086] The forward rotation and reverse rotation of the sprocket motor make the drive shaft II drive the chain to move, and then drive the film-drawing rod 6 to move. According to the range of motion of the film-drawing rod 6, the sprocket motor can be set rotation range.

[0087] The reflective film 21 is a PVC film.

[0088] The material of the air-permeable fixing plate 8 is microporous ceramics.

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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.

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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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/24G01B11/16
CPCG01B11/16G01B11/24
Inventor 康仁科董志刚王毅丹秦炎朱祥龙
Owner DALIAN UNIV OF TECH
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