Technological Innovations in the Design of Worm Gears for Tool Magazine of Multioperational Machine

The article discusses the creation of a 3D project for a disk tool magazine with an autooperator for a multi-operational drilling-milling-boring machine and the technological improvement of the worm drive for the tool magazine. Three-dimensional modeling of automatic tool change components in the Creo Parametric computer-aided design system using its new functionality is carried out. Solid-state models of the disk magazine housing parts, its drive, and the form-building spindle assembly, the construction of which ensures the coordination of the design part of the housing and its casting blank are presented. Special techniques to remove holes and roundings in the housing from the model in the multivariate design mode are used. A set of tool blocks is formed and mounted in the slots of the tool magazine using effective operations for constructing cones of auxiliary tool holders. The phenomena occurring in a worm drive gear when the disk magazine moves are investigated. The concept of a new technology for cutting a worm with a cutting head of a modified profile is analyzed. A mathematical apparatus on the basis of which an algorithm is implemented for calculating the geometric parameters of the cutting tool, ensuring the guaranteed absence of secondary cutting action on the worm is formed. An experimental calculation of the modified design of the gear cutting head was carried out and the minimum possible nominal diameter of the head containing cutters, the working surface of which is convex-concave and outlined by circular arcs, was calculated.