Method for Orientation Determining of the Detail for the Automated Soldering Technological Process

Abstract

Purpose of reseach. Development of a technique for determining the orientation of parts during automatic soldering of a contact group based on the assembly of a combined image recognition systems.Methods. Analysis of the technological process of assembling a part and evaluating the possibility of using various technologies for orienting workpieces. Development of a consistent technique for orienting a part, including the stage of recognizing a rounded edge using a vision system. Development of an algorithm for recognizing the orientation of the workpiece directly from the image of the part and along the contour of the shadow of the part. Setting up full-scale experiments on a test bench, obtaining numerical values for the accuracy of recognizing the orientation of a part for various algorithms.Methodology. To solve the problem of transportation and positioning of the studied parts, methods of movement are used, due to controlled vibration inside the developed system of guides and cutters. To determine the rounded edge, image processing and recognition methods are used: the k-means method  for clustering the original image, the Hough transform for contour search, etc.Results. In the course of the study, two algorithms for extracting details from the original image and the image of the shadows cast by the detail were developed. In the detection of an increased risk, more than 96%, however, when detecting sensitivity along the contour of the shadow, more than 99% were detected.Conclusion. The technique for determining details developed within the framework of the work, including the stages of preliminary sorting according to the task of vibrotransportation, the stage of searching for a round face using a technical perspective system, including the contour of shadow details, makes it possible to obtain high accuracy even when assembling video equipment with a low level of detection.