Tracing Back to the Tooth Pitch Error of Large CNC Gear Frinding Machine
The pitch error of gears directly affects the stability of gears in the transmission process,and large CNC machine tools have the characteristics of many degrees of freedom,large size and long stroke,so it is more critical to trace the error that affects the pitch accuracy in machine tools.The five-axis CNC machine tool was taken as the research object,and the error transmission model including the main errors of the ma-chine tool was established by using the method of homogeneous coordinate transformation matrix.Morris method was used to trace the source of error,and the error term with great influence factors was obtained.The results show that through the established error traceability model,the error items in the grinding process are an-alyzed and the key errors are obtained,which can provide a theoretical basis for the later error compensation.
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维普
