CONTRIBUTIONS TO POSITIONING ACCURACY DURING LINEAR MOTION OF CNC MACHINE TOOL TABLE
Journal Title: Proceedings in Manufacturing Systems - Year 2014, Vol 9, Issue 1
Abstract
New evolution of machine tools involves various elements of artificial intelligence for workpiece in the best conditions of precision and quality. High geometrical precision is the main factor in achieving performance criteria. This requires certain onjectives: establishing a methodology for measuring positioning errors and ways to decrease them; establishing a methodology regarding the causes and prevention of errors; utilisation of a software error compensation and modifying CNC program using a CAM application; verification of the software efficiency by machining a workpiece without errors compensation, and machining a second one with processing paths improved. After performing these virtual operations, the workpiece was machined in order to verify the dimensional and form accuracy. Thus, it was used a software application, which we called it “Optimization of the numerical control”, which based on measurements of precision positioning,was used to optimize the coordinates of path processing, so that to increase the geometrical and dimensional accuracy of the workpiece. This program was checked by machining a test workpiece, resulting an important reduction of the finished piece dimensional errors. Thus, the main contribution, of this paper is that using the proposed approach the precision of CNC machine tools can be improved without the intervention upon the structural elements of the machine tool.
Authors and Affiliations
M. D. Paraschiv, C. F. Bisu, M. Zapciu
Keywords
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