Three-dimensional contour outline measuring set based on multi sensors and measuring method thereof

Abstract

The invention relates to a multisensor-based three-dimensional outline measuring device and a measuring method thereof. The measuring device comprises a base plate, a vertical movement platform, a working table surface and light measurement sensor assemblies. The working table surface is provided with four or more than four light measurement sensor assemblies which are evenly distributed around a measuring hole; each light measurement sensor assembly comprises a laser, a camera and a camera mount; the lower end of each camera mount is buckled on an assembly guide way which is fixed on the working table surface; the cameras are arranged on the camera mounts; and the lasers are fixed on the working table surface. The invention utilizes the light measurement sensor assemblies to improve the measurement speed and provides an effective technical measure for the batch detection of industrial site components; and the invention adjusts field coverage and amplification ratio according to the surface shape of a tested component and is adapted to the measurement of a complex curve surface of a blade or a conical gear, and the like, which cannot be effectively measured by using conventional methods.

Description

technical field [0001] The invention belongs to the field of optical detection, and relates to an optical detection method of a three-dimensional profile, in particular to a multi-sensor-based 360-degree three-dimensional profile measurement device for complex curved surfaces and a measurement method thereof. Background technique [0002] In recent years, the application of object three-dimensional contour detection technology has become increasingly popular and widely used in product design, quality control, reverse engineering simulation, machine vision, and biomedical fields. In industrial production, measuring the profile of complex precision parts such as aeroengine blades, steam turbine blades, bevel gears, and helical gears is of great significance for controlling product quality. [0003] There are many existing object three-dimensional profile measurement methods, which are roughly divided into three types, namely three-dimensional coordinate measuring machine measu...

AI Technical Summary

Problems solved by technology

[0004] 1) The measurement efficiency of the three-coordinate measuring machine is low, and it is not suitable for batch testing of parts;

[0005] 2) The accuracy of the stereo vision measurement method is limited, and it is not suitable for the detection of precision parts;

However, the traditional line-structured light measurement method is based on a single sensor, which can only measure the contour of an object in one direction at a time, and is incapable of measuring parts with 360-degree contours such as blades and gears.

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