3D modelling of a multi-operation machine drive with a spindle turret and an innovative bevel gear modelling procedure

INTRODUCTION: This paper examines the problem of integrated automated design and 3D modeling of a mechanical drive for a multi-operation drilling-milling-boring machine with modular spindle heads. The task of integrated machining, including both roughing and finishing methods, is relevant for single-part and small-scale production. OBJECTIVES: This work aims to improve the process of designing and 3D modeling a stepped mechanical gear drive and a spindle turret head of a multi-operation machine in an advanced integrated CAD environment. METHODS: Techniques employed is based on procedures for generating layouts and kinematic diagrams for the stepped mechanical drive of a multi-operation machine tool, facilitating the creation of a 3D design project using the Creo Parametric CAD toolkit. For bevel gear transmissions, an innovative procedure has been implemented for constructing 3D models specifically for the case of circular teeth. RESULTS: A preliminary design was developed for a MoM three-stage drive unit with a six-spindle turret, designed for milling, drilling, and countersinking operations in single-part and small-scale production. A 3D design of a three-stage gear drive with a turret head was created at the kinematic level. An innovative procedure for constructing a 3D model of a bevel gear with a circular tooth has been implemented. CONCLUSION: Based on a Mechanism software application using the Power Drive option, completed3D modeling of a rotary mechanism specialized design for transmitting motion and torque from the engine to the turret spindles. Innovative procedure is based on profiling by cutting a tooth groove, simulating the process of cutting teeth on a hobbing machine for spiral bevel gears. The construction process takes into account the changing cross-sectional shapes and sizes, with a helical surface-shaped cross-sectional trajectory.