A focal plane adjustment closed-loop control system and control method applied to 3D printing equipment

Abstract

The present invention relates to a focal plane adjustment closed-loop control system and control method applied to 3D printing equipment. Through the image capture device, combining the fitting curve of the pixel RGB color and the pixel position temperature, the focal plane is realized by measuring and calculating the size of the spot. and the accuracy can reach 1um. At the same time, the displacement sensor is used to obtain the distance between the laser printing head and the actual focal plane in real time, and according to the difference between the distance and the focal length of the galvanometer in the laser printing head, the angle is adjusted in combination with the preset collimator According to the corresponding relationship between the distance change between the laser print head and the actual focal plane, the adjustment angle of the collimator corresponding to the difference can be accurately obtained, and the PLC electronic control module drives and controls the rotation of the galvanometer in the laser print head to realize the laser print head The focus of the emitted laser on the 3D printing processing plane, compared with the traditional empirical method, this system not only saves labor costs, but also improves the measurement accuracy.

Description

technical field [0001] The invention relates to a focal plane adjustment closed-loop control system and control method applied to 3D printing equipment, and belongs to the technical field of 3D printing. Background technique [0002] In recent years, the society has raised artificial intelligence to the height of national strategy. The successive implementation of these intelligent strategies is also continuously promoting the intelligent development of related additive manufacturing industries. [0003] After years of development, the foreign additive manufacturing industry has formed a relatively mature market environment and operation mode, and established a relatively complete additive manufacturing system in terms of additive manufacturing equipment, production technology, technical standards, sales and after-sales service, mainly reflecting In: First, additive manufacturing design, that is, in-depth research on important design elements such as disassembly performance,...

AI Technical Summary

Problems solved by technology

[0005] At present, additive manufacturing has also developed rapidly in the field of dentistry. However, the method used to correct the light source in the early stage of equipment is still relatively traditional and old. There is no scientific calculation basis for actual operation and adjustment, and the actual use efficiency is not high.

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