Turning
Operating Manual, 01/2015, 6FC5398-8CP40-5BA2
835
Working with two tool carriers
With SINUMERIK Operate, you can work at a lathe with two tool holders, both of which are
mounted on an X axis. The tool holders may be revolvers, multifix, or a combination of both.
The main machining is performed in the negative X axis direction. As both tool holders are
mounted on the same axis it is only possible to machine with one tool.
The workpiece is always located between the two tool holders. The tool lengths of all tools,
i.e. of both tool holders, have the same reference point, which is usually on tool holder 1.
That is why the tool lengths of the tools of the second tool holder are always longer than
those of the tools on the first tool holder.
Programming with two tool holders
You always program in the basic coordinate system (workpiece coordinate system of the first
tool holder). You do not have to take into account in which tool holder the tool is inserted.
Tool on the second tool holder
If a tool on the second tool holder is selected, the X and Y axes are mirrored and the main
spindle and counterspindle are offset (rotated) through 180°.
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