Modelling the tooth flanks of hobbed gears in the CAD environment

Abstract

The paper presents the computer simulation methodology of modelling tooth flanks of cylindrical gears. The modelling consists of a computer simulation of a gear generation. A model of tooth flanks is an envelope curve of a family of envelopes that originate from the rolling motion of a solid tool model in relation to a solid model of the cylindrical gear. The surface stereometry and topography of the tooth flanks, hobbed, are compared to their numerical models. A computer simulation of the gear generation was performed in a mechanical desktop environment.