The Dynamics Analysis of CNC Heavy-duty Horizontal Lathe Feed System

When CNC heavy-duty horizontal lathe feed systems is running at a low speed,the crawl phenomenon will be produced.The crawl phenomenon will seriously affect the working accuracy,workpiece surface roughness and position accuracy.Gear system dynamics was proposed to analyze the crawl mechanism of the feed system.The dynamics model of the feed system was established and solved by the Newmark method.The displacement of the tank carriage of the feed system was simulated by LMS Virtal.Lab Motion software.All these provide basis for the settlement of crawl phenomenon.