Mr. Fan Chen Profile

Fan Chen

at National Univ of Defense Technology

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Proceedings Article | 28 December 2010 Paper

CNC test approach based on simulation model of machine tool

Fan Chen, Dapeng Fan, Lianchao Zhang, Maochun Du

Proceedings Volume 7544, 75446Q (2010) https://doi.org/10.1117/12.885361

KEYWORDS: Servomechanisms, Motion models, Control systems, Device simulation, Process modeling, Systems modeling, Motion controllers, Virtual reality, Simulink, Kinematics

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When measuring the control error of CNC systems, the errors brought by machine tools will affect the veracity of CNC test. A new test approach based on simulation model of machine tool is proposed in order to well solve the problem. The structure and principle of the test approach is demonstrated. The simulation model of virtual machine tool and servo feed system are completed based on Simulink. The effect of nonlinear factors such as backlash and friction, are considered sufficiently in the modeling process of virtual machine tool. The validity of machine tool model is verified by simulation. Experimental setup is built to test the motion control ability in the process of circular interpolation, using the proposed test approach. The results of the experiment prove the validity of the test method. The machine tool model set up in this paper can comparatively accurately exhibits the kinematics characters of the real machine tool, and the proposed test method provides a new way for the comprehensive and reliable test of the motion control ability of the CNC system.

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