High precision 3D laser contour scanning device based on data acquisition

Abstract

The present invention discloses a high precision 3D laser contour scanning device based on data acquisition, the device comprises: a bottom frame, a scanning table and a bottom box, wherein bottom corners of the bottom frame are respectively provided with height adjusting devices, the height adjusting device comprises cushion blocks, a straight rod and a threaded sleeve, and four supporting legs at bottom of the bottom frame are respectively embedded with a threaded sleeve. When an object passes position of a side mounting base, a scanner on the side mounting base scans contours on both sidesof the object, when height of the object is different, a hydraulic cylinder is controlled so that an internal piston pushes a lifting rod perform vertical direction movement, then, height of the scanner on the side mounting base is made to change, to complete overall scanning work on side of the object, then the scanned contour is displayed on a touch display screen, no vibrating will occur when scanning, no workers are needed to manually hold the scanner to adjust position for performing scanning work, work efficiency is improved, and accuracy of scanning objects is enhanced.

Description

technical field [0001] The invention relates to the field of scanning equipment, in particular to a high-precision 3D laser profile scanning device based on data collection. Background technique [0002] The laser profile scanner uses the principle of laser triangulation to perform two-dimensional profile scanning on the surface of different measured objects. The laser beam is amplified by a set of specific lenses to form a static laser line, which is projected onto the surface of the measured object. High-quality optical The system projects the diffuse reflection light of the laser line onto the highly sensitive photosensitive matrix of the sensor. In addition to the distance information (Z axis) from the sensor to the measured object, the controller can also calculate the distance along the laser line (x axis) through this set of images. The sensor finally outputs a set of two-dimensional coordinate values. The origin of the coordinate system is relatively fixed with the s...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a high-precision 3D laser profile scanning device based on data acquisition, so as to solve the problem that the current common scanning device has certain restrictions on the specific size of the object during the process of scanning the object. Or if it is small, the scanner needs to be adjusted in position, otherwise it will not be able to cover the overall appearance of the scanned object. In order to improve the accuracy of the scanned outline, the scanner is fixedly installed on the scanning device. Restriction will limit the size of the scanned object, the scope of application is small, when scanning objects of different sizes, the scanning device needs to be replaced, and the problem of high cost

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