Kinematic synthesis of cam-controlled planetary gear trains

In this work, a systematic approach for the kinematic synthesis of cam-controlled planetary gear trains (CCPGTs) is proposed. First, structural synthesis of (4, 5) kinematic chains is performed. Furthermore, kinematic analysis is conducted from its geometry. Moreover, the B-spline-based motion design approach is presented. Finally, cam profile equations for the new design are derived. In addition, two design examples are illustrated. The results show that the output speed trajectories designed by using the proposed approach agree well with their motion requirements.