Determination of Settings of a Tilted Head-Cutter for Generation of Hypoid and Spiral Bevel Gears.

Abstract : The synthesis of hypoid and spiral bevel gears is an important problem that has been a subject of intensive research by Gleason engineers. Gleason engineers have designed machines to cut and grind hypoid and spiral bevel gears that are widely used in the industry. An ingenious mechanism is used in the Gleason gear cutting machines. This mechanism provides the required pinion pressure angle by tilting the heat-cutter and thereby reducing the number of different cutter blades. A short description of the tilt head-cutter mechanism has been given by Lehmann but the basic equations that are necessary for the settings have not been presented. The purpose of this paper is to investigate the kinematics of the tilt-mechanism and to derive the basic equations for the installment of the machine-tool settings. (JES).