KINEMATIC ADJUSTMENT OF GEAR HOBBING MACHINES AND COMPUTER APPLICATION IN COMPUTATION AND ADJUSTMENT TO IMPROVE MACHINING ACCURACY

Abstract

For gear hobbing machine, like other machine tools, the process of dynamic adjustment aims to determine the transmission ratio of adjusted joints in dynamic chains. This procedure ensures the velocity of actuators and the relative velocity among them. Some of dynamic chains strongly affecting to the product accuracy are required to high accuracy. To assure the dynamic accuracy of transmission chains, the replacement gears are used for the adjusted joints. The computation to identify the gear number of replacement gears can be done by many ways. In this paper, the method of computer application is presented to calculate and modify the dynamic of indexing chains. The objectives are to improve the accuracy of machined helical gears on hobbing machines.