Hi,
there are devices like PhasePerfect that convert single phase into three phase, but depending on the power requirement are expensive.
On the device or driver there should be a manufacturers name plate which should specify the power level. That will determine the size of the phase converter.
All single phase to three phase converters demand very high current from the single phase supply. If the robot is much beyond 4kW then that would require a
high current single phase circuit, say 30A or so, well beyond the circuits in most households. You might therefore have to get a specialist circuit installed just to run the phase converter.
Craig