Method for testing sample plate by using laser projectors

Abstract

The invention relates to a method for testing a sample plate by using laser projectors. The method is characterized by comprising the following steps of: 1) designing a sample testing table, namely designing a testing table-board, guaranteeing the flatness and levelness of the testing table-board, and designing reflection target spots for six laser projectors around the end face of the testing table-board; 2) designing data of the laser projectors, namely translating data of model lines to the inspection table-board of a three-dimensional model of the testing table, converting all the lines into point data used for laser projection, and extracting all the point data and designing laser projection files; and 3) testing the sample plate, namely projecting the designed laser projection files to the testing table-board by using the laser projectors, and paving the sample plate on the corresponding model line area and testing. By the method for testing the sample plate, the sample plate is tested quickly, efficiently, and accurately, the model lines of a plurality of parts are projected to the testing table simultaneously, and the parts are tested.

Description

technical field [0001] The invention relates to a method for inspecting a sample by a laser projector, which belongs to the field of sample inspection. Background technique [0002] With its low price, convenient and flexible operability, the prototype plays an important role in the inspection of parts. With the continuous improvement of digital design and manufacturing level, the development speed of parts is getting faster and faster. With the digital design and manufacturing The time is getting shorter and shorter. At present, the prototypes of various aviation companies mostly use methods such as mold line inspection drawn by polyester film, laser cutting sample inspection, and two-dimensional scanner inspection. Among them, the use of polyester film inspection models requires a large number of mold lines to be drawn, and the mold line drawing is performed by The CNC plotter completes the drawing line by line, and the speed of drawing becomes the bottleneck of sample de...

AI Technical Summary

Problems solved by technology

At present, the prototypes of various aviation companies mostly use methods such as mold line inspection drawn by polyester film, laser cutting sample inspection, and two-dimensional scanner inspection. Among them, the use of polyester film inspection models requires a large number of mold lines to be drawn, and the mold line drawing is performed by The CNC plotter completes the drawing line by line, and the speed of drawing becomes the bottleneck of sample delivery; the laser cutting sample inspection can only verify the accuracy of laser cutting, but cannot judge whether the cutting result conforms to the mold line; the reverse inspection of the sample scanned by a 2D scanner is There are disadvantages of low efficiency and inability to inspect the lines and marks on the surface of the sample

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