Development of Harmonic Drive Combining Four Arcs for Conventional Kinematic Application

Development of Harmonic Drive Combining Four Arcs for Conventional Kinematic Application

Blog Article

This paper proposes a modified harmonic cam, which is used to design a harmonic drive.Conventional harmonic drives using viqua-f4 a sinusoidal cam type pertain to an elastic body concept and are thus difficult to design and evaluate.Unlike the conventional sinusoidal cam, the proposed harmonic cam involves a combination of four arcs.

Such cams can be designed based on a rigid body concept, and thus, the tooth profile can be designed and analyzed using the established gear theory.The novel harmonic cam is designed by green snowflake japanese maple exploiting four-arc combinations, and guides for designing harmonic drives with involute and cycloid angular teeth are presented.A harmonic drive with a difference of two teeth between the circular spline and flex spline is designed.

The operation, tooth engagement, and interference are validated through a mock-up production using a 3D printer and gear simulation program.The findings can facilitate the facile design and manufacturing of harmonic drives.