3D printing auxiliary method and system based on mixed reality technology and application

Abstract

The invention belongs to the related technical field of 3D printing, and discloses a 3D printing auxiliary method and system based on the mixed reality technology and application, and the method comprises the steps that a virtual model of a to-be-printed piece is generated; acquiring field depth image data by adopting a camera; generating a point cloud by using the depth image data, and performing three-dimensional reconstruction on the to-be-printed piece according to a point cloud matching algorithm; comparing the three-dimensional reconstruction configuration with the virtual model in real time to obtain operation auxiliary information; and importing the virtual model and the operation auxiliary information into the mixed reality scene, displaying the virtual model and the three-dimensional reconstruction configuration in a visualized overlapping mode, and enabling an operator to change the machining parameters according to the operation auxiliary information till the error value of the three-dimensional reconstruction configuration and the virtual model is within a preset range. The printing state of the current site can be visually seen in a long distance, printing errors are found in time, printed products are more accurate, and the method is particularly suitable for long-distance monitoring of the printing state and adjustment of a printing strategy in a severe environment.

Description

technical field [0001] The invention belongs to the technical field related to 3D printing, and more specifically relates to a 3D printing auxiliary method, system and application based on mixed reality technology. Background technique [0002] Concrete 3D printing is a construction method that integrates multiple disciplines based on data models. Due to the fluidity of concrete itself, it is very difficult to control the accuracy of printed parts. Therefore, the current concrete 3D printing process always has forming quality problems. Moreover, in the actual processing process, the operator cannot closely observe the deformation of the printed part, and it is difficult to make timely technological adjustments, which is the main obstacle to improving the quality of the process. In the current concrete 3D printing workflow, part of the operation process needs to rely on the experience of the operator, which requires a high professional level of the operator. The accuracy of t...

AI Technical Summary

Problems solved by technology

[0002] Concrete 3D printing is a construction method that integrates multiple disciplines based on data models. Due to the fluidity of concrete itself, it is very difficult to control the accuracy of printed parts. Therefore, the current concrete 3D printing process always has forming quality problems. Moreover, in the actual processing process, the operator cannot closely observe the deformation of the printed part, and it is difficult to make timely technological adjustments, which is the main obstacle to improving the quality of the process.

In the current concrete 3D printing workflow, part of the operation process needs to rely on the experience of the operator, which requires a high professional level of the operator. The accuracy of the preparation is completely removed from the operator, the accuracy of the preparation is unstable, and the preparation efficiency is low.

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