Calculation of the producing surfaces of milling cutters for processing gears of eccentric-cycloidal engagement

Abstract

The paper considers a new method for processing curved gears of eccentric-cycloidal engagement with a curved profile using a special tool. The surfaces of wheels of eccentric-cycloidal engagement with a curved profile for small and large wheels are simulated. The scheme of forming a small wheel of eccentric-cycloidal engagement using a shaped milling cutter with a constructive radial feed is shown. The producing surface of the milling cutter is obtained, which allows to fulfill all the conditions of shaping when implementing the proposed scheme for shaping a small wheel of eccentric-cycloidal engagement with a curved profile. For a large wheel, a shaping scheme using the rolling method using a worm wheel is proposed. Modeling of the producing surface of a worm mill for shaping the surface of a large wheel of eccentric-cycloidal engagement using the rolling method is performed. This approach can be used in the design of milling cutters designed for processing curved gears of eccentric-cycloidal engagement of various sizes. The use of such tools will make it possible to make the transition to serial and mass production of gears with this engagement.