The red boundary is the shape of the work envelope
described by this type of robot. Unlike the simplest robot of
Cartesian type, this has TWO rotary AXES, One as base and another
as a gun turret. One linear axis for linear telescopic movement.
These are besides the three axes at the end of arm viz. Roll,
Pitch and Yaw.
The rotary base gives a possibility of accessing
and interacting with its environment all around. In special application
requirements, it is possible to give a continuous rotation for
improving throughput, instead of wasting any retracing paths,
as would be the case in a ±360º type of implementation.
The requirements of communication and power
distribution within the robot are taken care of through “Bluetooth”/optonics
and slip ring technologies.
The Polar coordinate robots are eminently suitable for tending
to multiple machines or rotary sequential processes requiring
long reach distances, viz.. bulky loads (large cartons) to be
handled on to moving conveyors. The robot need not retrace a wasteful
path to the next carton and instead can take a shorter path, continuing
the rotary action.
