Using of Machine Vision System for Offline Setup Cast parts on CNC Milling Machine with Industrial Application Approach

Authors

1 Departemant of mechanic, faculty of engineering.Isfahan University of Technology, Isfahan, iran

2 Faculty member of faculty engineering, university of neyshabur, neyshabur. iran

3 Inviting Professor, Institute for Biomechanics - ETH Zurich, Switzerland

Abstract

In the use of numerical control machines, offline setup has been possible by using a variety of software applications in the field of modeling and machining without the need to execute a process by the machine. Therefore, many decisions can be made before the machining process. The machine vision is considered as one of the technologies that can be used for offline setup of the workpiece which located on cnc machine tools before machining operations. In this research, this method has been used to determine the position of two casted part samples on a cnc milling machine. The mean error after 10 times testing in order to finding a circular center of Some kind of casted cap as workpiece origin includes 0.361 mm along the x axis and 0.372 mm along the y axis and the mean error of finding the workpiece origin of the casted pump impeller was 0.2 mm. Also, mean error for finding edge location of the molded cap in order to reduce the time for determining the movement direction of the tool relative to the workpiece which is clamped on the machine tool table, includes 0.25 mm in both x and y directions, and 0.4 mm along the z axis. The model error recovered from the extracted points were obtained by processing the images of the casted pump impeller to determine its position includes 0.363 mm in all three directions x, y and z.

Keywords

References

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Journal of Solid and Fluid Mechanics
Volume 11, Issue 1
March and April 2021
Pages 239-255

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