Modern CNC lathes

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We have covered the CNC and lathe terms of the used CNC lathe phrase in the previous two posts. One more step that is involved is the combining of the two terms, so we can define the term CNC lathe properly, before we go into the realm of the used cnc lathe. So the used cnc lathe terminology will have to wait just a little bit longer, just enough for us to complete the understanding of the modern CNC lathe.

Combining CNC technology and lathe technology, the modern CNC lathe can be programmed via the built in computer to adjust the spindle speeds, cutting tool feeds and depth of cut, coolant on off controls, chuck open and close controls, tailstock quill extension and retraction, parts catcher up or down, chip conveyor controls, threading parameters, drilling parameters, tapping parameters and such. Additionally, chamfer and necking parameters, grooving and profiling parameters, reaming and boring parameters can be adjusted. If the CNC lathe is equipped with a bar feeder, then parametric signals can be communicated back and forth between the cnc lathe and the bar feeder, allowing for end of bar detection, new bar load and even sense and implement auto power off for completely unattended operation.

Data such as part specific programs can be downloaded from the cnc lathe on to either disks or memory sticks and saved off site for program software security. Several programs are available nowadays for offline programming and loading of cam files directly from cad cam systems. Overload detection for identification of broken inserts, drills and other tools are available for instigating operator intervention and proper parameter settings can bring up maintenance warnings including but not limited to low hydraulic oil, coolant levels, low lubricating oil levels, guide way oil levels and so on. Turret spin speeds as well as rapids and returns can be controlled as well as location of the turret spin can be specified.

The modern CNC lathe is simply a wonder that has been developed over the years combining various interdisciplinary engineering talents including controls engineering, mechanical engineering, electrical engineering and metallurgy and materials science.