Device and method for realizing automatic thickness ratio detection of composite plate

Abstract

The invention relates to a device capable of realizing automatic thickness ratio detection of the whole surface of a composite plate. The device comprises a composite plate conveying machine tool anda three-coordinate detecting device. The three-coordinate detecting device is connected with the composite plate conveying machine tool through a sliding bearing. The composite plate conveying machinetool is provided with an automatic plate positioning device which comprises X-axis and Y-axis direction positioning devices and a positioning auxiliary device. The three-coordinate detecting device comprises a three-coordinate meter, a laser-ultrasonic integrated probe and laser ranging. The method capable of realizing automatic thickness ratio detection of the whole surface of the composite plate comprises the steps that the laser-ultrasonic integrated probe of the three-coordinate meter is lowered to press against the surface of the composite plate; the ultrasonic and reflection waves of the interface of the base layer and the stratified layer of the composite plate is detected; and according to the detecting time of the reflection waves and the propagation sound velocity of the ultrasonic wave in the stratified layer material, the thickness of the stratified layer and the base layer is calculated. The device and the method have the advantages of comprehensive and accurate detection, high degree of automation, improved production efficiency and reduced cost.

Description

technical field [0001] The invention belongs to the technical field of plate processing, in particular to a plate detection device and detection method. Background technique [0002] Composite panels have excellent comprehensive performance and are widely used in shipbuilding industry, petrochemical, nuclear power and other fields. Thickness ratio (ratio of composite layer thickness to total thickness) is an important parameter related to the excellent performance of composite panels. In order to ensure the quality of composite panels, it is necessary to conduct comprehensive and accurate detection of the thickness ratio of composite panels. The traditional detection method is that the inspectors hold a micrometer to select a limited number of points on the outer side of the composite board for sampling inspection. Obviously, this method can only detect the exposed side of the composite board, but it is powerless to detect the thickness ratio of the central area. In this wa...

AI Technical Summary

Problems solved by technology

In this way, the missed inspection of a certain part of the composite board will lead to inaccurate detection results, which will bury hidden dangers in the safety of the composite board.

Moreover, the human error of the manual detection method is large and the efficiency is low

[0003] The patents represented by the announcement number CN 104122901 A titled "A Method for Controlling Plate Thickness" and the announcement number CN203881312 U titled "A Device for Automatic Thickness Detection of Plates" are based on the use of a set of symmetrical arrangements on the upper and lower sides of the plate. The range finder is used to detect the total thickness of the board, but none of them can realize the separate detection of the thickness of the cladding layer (base layer) of the composite board

The announcement number is CN 105865380 A titled "An Ultrasonic Coating Thickness Measuring Device and Its Using Method" and the announcement number is CN 103245311 A titled "A Thickness Measuring Device and Its Thickness Measuring Method for Ultrasonic Detecting Multilayer Absorbing Coatings" The patents represented by "Use ultrasonic reflection echoes to calculate the thickness of a layer of material in a multi-layer sheet, but it does not involve the simultaneous detection of the total thickness of the sheet, and they are all simple hand-held detection equipment, without realizing the detection equipment. automation

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