Planetary offset gearbox for a painting robot

The task.
For a redesign of a painting robot, the existing CNC drives for the rotating and swivelling axes of the spray head are to be optimised – with a weight reduction, a shortening of the gearbox and increase in the nominal torque. Simplifi ed assembly and disassembly were also requested.

Our solution.
A Misalignment was realized with a planetary-spur gear combination. Through optimisation of the toothing and the bearing it was possible to increase the output torque 100 %. The reduction of the gearbox length from 186 mm to 112 mm effected a decreasing of the gearbox weight of 30 %.