gear cutting

The results of the simulation and study of the process of cutting gears by the traditional method of hobbing and the new radial-circular method (RCM), which is carried out by a thin disk cutter, but in the conditions of continuous profile generation, as it is in gear cutting with a hob. It has been shown that due to the peculiarities of this process, its kinematics, and the structure of the disk cutter, RCM is superior to hobbing in all the parameters studied: volumetric productivity, chip thickness ratio, and cutting forces, machining time and machining costs.

The results of the study of the radial-circular method of gear cutting are presented. The cutting and shaping of teeth is carried out by a thin disc cutter under conditions of continuous generating, with a combination of axial feed of the cutter and its constructive radial movement due to eccentric installation on the spindle axis. The value of the eccentricity is determined by the gear module. A graph-analytical model was used to calculate the parameters of the cuts, and the cutting force and torque on the cutter axis were modeled using these data.

Aim. Analyze the state of the branch of new Power skiving technology, the limits of its rational use, its advantages and disadvantages, to form the main directions of development of this method of tooth cutting and optimization of the structure and geometry of its cutting tool. Method.

Aim. The simulation of forming process for tooth flanks of worm gears for globoid worm gears by continuous forming method using disk milling cutters for development scientific well-founded recommendations about technological ensuring for manufacture of globoid worm-wheels. Method. The researches are based on kinematic analysis methods of classical mechanics, differential and analytic geometry, theory of gear wheels, theory of forming surfaces of parts by cutting.

The relevance of the problem which is solved in this article has been substantiated. In modern machines and equipment, rotary motions which cannot be implemented without gear wheels and gear trains are always present. Attainment of high performance of a machine – increase in loading with simultaneous increase in speed, increase in transmitted forces and moments, decrease in noise during operation, ensuring high indexes of failure-free performance and longevity of a machine – depends on precision in manufacturing the gear wheels and gear trains.