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

Abstract

The invention discloses a machine vision-based 3D printing forming quality detection system and method. A rotary platform is mounted on a workpiece placement platform, a 3D printed product is placed on the rotary platform, an image acquisition device is connected to an upper computer through a communication device, a backlight is arranged below the workpiece placement platform, the rotary platformcomprises an upper plate and a lower plate parallel to the upper plate, the bottom end of a center shaft is fixedly connected to the center of the lower plate, the center shaft is sleeved by a surface bearing, the surface bearing is sandwiched between the upper and lower plates, and multiple rolling parts are uniformly installed between the edges of the upper and lower plates in intervals. The method comprises acquiring surface images of a 3D printed finished product through an area-array camera, inputting an image capture card into the upper computer, carrying out image pre-processing, and analyzing the images to detect contour defects or surface defects. The system and method can realize fast detection of the quality of the 3D printed finished product, have a high detection precision and improve the qualified rate of the workpiece.

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...

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