Ideal CNC lathe tool presetter

Lathe tools are easy to measure…not at all!

What is the advantage to measure lathe tools outside the machine? Is it much easier touch the workpiece as a reference or use the measuring arm? Why should we consider instead tool setting remote of the machine for external turning?

Very true ... yes, but there is a but! What measurements do we need? Are they sufficient? If the answer is ‘yes’, do not go further, if instead you have a doubt, it will probably be useful consider the following.

Evidently measuring a tool on the lathe, itself is extremely easy, but this measurement does not tell you how the tool is put together (insert radius, geometries, chamfers, e.t.c). Above all it does not indicate absolutely if the tool is mounted correctly and whether it will align to suit the centre of the machine spindle or if it is actually above or below the centreline? Only a presetter for can do this with confidence.

It is not so important? Maybe not, but perhaps, when the machine ‘vibrates’ abnormally, you will doubt whether the set-up is actually correct. Not to mention that more and more lathes are equipped with power turrets which are able to mill and therefore more comparable to a machining center or, as we say today, to a multi-tasking machine.

If you agree then let's discuss further.

Measuring a lathe tool means knowing length, diameter, insert radius, insert position and being sure to work on the centre of the spindle. That is all! Yes, all very straight forward if carried out using an Elbo Controlli NIKKEN presetter with index function. Just place the tool in the appropriate spindle adaptor and you are done.

It is not possible, you say? For sure, it is really very simple, but it must be done with a system and software (as on our presetters) that understands what to measure.

Elbo Controlli NIKKEN has developed many attachments and adaptors to suit most lathes on the market which means that the operator will simply have to frame the tool within the camera system. Since a turning tool normally has a fixed position it is not even be necessary to rotate it. It will already be exactly aligned as if mounted in the machine.

This operation, in the simplest way, can be done using our two right-left comparators which or particular benefit when using polycrystalline tools as it is done with a camera that does not touch the tool itself (no damage or breakage).

At this point the most obvious thing will be to send the measurements directly to the Numerical Control. Again, this is also a standard function and possibility that we can explain in another article.

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