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2011
Conference Paper
Titel
Analysis of control and servo drive systems for the application in ultra precision machining
Abstract
The mechanical design of ultra precision machine tools is very well experienced today. Detailed investigations on axes design, bearings and drives as well as overall machine concepts have build a broad basis for designing very robust and accurate state of the art machine tools. Enhancements to further increase the achievable form accuracy and surface quality and at the same time decrease cycle times and error sensitivity can only be accomplished by innovative control and drive systems, that are concurrently offering additional possibilities of automation, process integration, data acquisition and processing as well as computerized quality management strategies. In contrast to mechanical machine design, control and servo drive systems for ultra-precision machining and their interactional behavior within a complex machine setup have not been sufficiently analyzed yet. At the Fraunhofer IPT a test bench has been developed to analyze machine controls, servo drives and senso r systems with regard to an evaluation of capabilities of their application in an ultra precision lathe. This paper presents the test bench setup as well as first measurement results regarding the interpolation of setpoints in CNC machine controls as well as digital servo drives.