Post Processing for Five-Axis Machine Tools with Pose Error Compensation

Abstract:

This paper describes the enhancement of the machining precision of 5-axis machine tools. Most post-processors did not consider the pose errors so that the processing error was increased invisibly. A post processing method with pose error compensation was proposed for table/spindle-tilting type machine tools.12 position errors and 12 rotation errors were compensated by the proposed method. Mathematical model contained pose errors which converted cutter location data into machine motion coordinates was established based on inverse kinematics and the analytical solutions of NC code were derived. The tool paths of the freeform surface machining were posted with the presented method. And the simulation experiment was carried out which verified the feasibility of the post processing method with pose error compensation. Comparison of processing error shows that the post processing with pose error compensation can effectively improve the machining accuracy by approximately 50%.

• Periodical: Advanced Materials Research (Volume 1037)
• Pages: 283-287
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1037.283
• Online since: October 2014
• Authors: Shuang Ding, Xiao Diao Huang*, Chun Jian Yu
• Keywords: Five-Axis Machining, Inverse Kinematics, Pose Error Compensation, Post Processing

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