Machine vision-based 3D printing forming quality detection system and method

Abstract

The invention discloses a machine vision-based 3D printing forming quality inspection system and method. The workpiece placement platform is equipped with a rotating platform, on which 3D printing products are placed, the image acquisition device is connected to the host computer through communication equipment, and a backlight is installed under the workpiece placement platform; the rotating platform includes upper and lower plates arranged in parallel up and down, and the central axis The bottom end is fixedly connected to the center of the lower plate, the center shaft is covered with a plane bearing, and the plane bearing is sandwiched between the upper plate and the lower plate, and a number of rolling parts are evenly distributed along the circumference between the edges of the upper plate and the lower plate The method includes collecting the surface image of the 3D printed product with an area array camera, inputting it to the host computer through the image acquisition card for image preprocessing; analyzing the image, and performing contour defect detection or surface defect detection through image analysis. The invention can realize rapid detection of the quality of 3D printing products, has high detection precision, and improves the qualified rate of workpieces.

Description

technical field [0001] The invention relates to the field of information image processing, in particular to a 3D printing molding quality detection system and detection method. Background technique [0002] 3D printing is a kind of rapid prototyping technology. It is a technology based on digital model files and using bondable materials such as powdered metal or plastic to construct objects by layer-by-layer printing. The technology has applications in jewelry, footwear, industrial design, architecture, engineering and construction (AEC), aerospace, dental and medical industries, education, geographic information systems, civil engineering, and other fields. The products printed by 3D printers need to be inspected for quality. At present, there is a lack of devices and methods on the market that can effectively inspect the quality of 3D printed products. Because 3D printed products have strong individual characteristics, the inspection schemes used in the past for assembly l...

AI Technical Summary

Problems solved by technology

The products printed by 3D printers need to be inspected for quality. At present, there is a lack of devices and methods on the market that can effectively inspect the quality of 3D printed products. Because 3D printed products have strong individual characteristics, the inspection schemes used in the past for assembly line products are not suitable. It is suitable for personalized 3D printing product inspection. The quality inspection device in the prior art has complex structure, cumbersome operation, low detection efficiency and low precision.

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