The programming of CNC lathe machining programs is more complex than the preparation of general machine tool process specifications. This is because issues that do not need to be considered in the machining process of general machine tools, such as the organization of process steps within a process, tool setting points, tool changing points, and determination of tool paths, cannot be neglected when preparing CNC lathe machining processes.
1.For a point-to-point CNC lathe, the tool path should be shortened as much as possible to reduce idle time and improve machining efficiency.
2.In order to meet the surface roughness requirements of the workpiece after the overall surface finishing, the final finishing should be organized as a continuous tool path for Z.
3.The tool’s entry and exit paths should be carefully considered to prevent stopping or vertical cutting of the workpiece at the finishing point.
4.When milling closed concave surfaces, the tool’s entry or exit should not extend beyond the surface, and can be selected at the intersection of the two sides.
5.It is crucial to reasonably plan the roughing path for parts with rotating bodies.