在数控车床加工中，加工路线的确定一般要遵循以下几方面原则。

①应能保证被加工工件的精度和表面粗糙度。

②使加工路线比较短，减少空行程时间，提高加工效率。

③尽量简化数值计算的工作量，简化加工程序。

④对于某些重复使用的程序，应使用子程序。

In NC lathe processing, the determination of the processing route generally follows the following principles.
1 It should be able to guarantee the accuracy and surface roughness of the workpiece being processed.
Make the processing route the shortest, reduce the empty travel time and improve the processing efficiency.
3 Try to simplify the workload of numerical calculations and simplify the processing process.
For some reusable procedures, subroutines should be used.