Three-dimensional measuring equipment and data fusion calibration method used for the three-dimensional measuring equipment

Abstract

The invention relates to the technical filed of three-dimensional measurement, and in particular discloses a three-dimensional measuring device and a data fusion calibration method for the three-dimensional measuring device. The three-dimensional measuring device comprises a rotatable rotary table, a feed mechanism for placing workpieces in loading jigs, an unloading mechanism for taking off the workpieces from the loading jigs, an information collection unit and a controller connected with the rotary table, the feed mechanism, the unloading mechanism and the information collection unit; the plurality of loading jigs for placing the workpieces are distributed on the rotary table along the circumferential direction; the information collection unit comprises a vertical image sensor for collecting images in vertical direction of the workpieces, a horizontal image sensor for collecting images in horizontal direction of the workpieces and a laser sensor combination for collecting coordinate information of the workpiece surface; the feed mechanism, the information collection unit and the unloading mechanism are distributed along the direction of rotation of the rotary plate in sequence. According to the three-dimensional measuring device and the data fusion calibration method for the three-dimensional measuring device, the mechanized operation is realized, the structure is simple, the accuracy of measurement is high, the measuring speed is quick and the efficiency is high.

Description

technical field [0001] The invention relates to the technical field of three-dimensional measurement, in particular to a three-dimensional measurement device and a data fusion calibration method for the three-dimensional measurement device. Background technique [0002] Three-dimensional measurement technology has always been a challenging problem in the field of industrial precision measurement. So far, various three-dimensional measurement methods and technologies have been presented, many of which have industrial applicability, such as three-dimensional coordinate measuring instrument, and three-dimensional measurement technology based on structured light has mature products. [0003] However, obtaining the three-dimensional coordinate data of the measured object in different applications still cannot be solved by a general method and technology. For example, although the three-coordinate measuring instrument has high precision, its measurement efficiency is low, the ope...

AI Technical Summary

Problems solved by technology

However, any single sensor will be limited in actual industrial applications. In most industrial applications, the geometric parameters of the workpiece to be measured need to be acquired by multiple sensors to obtain a compromise between measurement accuracy, practical convenience and cost.

[0004] In some application fields, due to the feature extraction of the measured object, when the laser measurement method and the image measurement method need to be used at the same time, the combination of the laser measurement and the image measurement device requires a special structure and data fusion calibration method; the existing The equipment that combines laser measurement and image measurement has the disadvantages of complex structure, complex information fusion process, many manual operations, slow detection speed, poor accuracy, etc., and thus cannot adapt to the production of industrial assembly lines.

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