Kyrychenko A. The rise of load-carrying capability of modular power units of transfer machines

The object of research is modular-type power unit of transfer machines. The purpose of job is to increase the load-carrying capability of modular power units by insertion into loading scheme of feed slide unit movable platform a force directed to equilibrate the axial component of technological load. Theoretical and experimental researches, the development of the practical recommendations were carried out on the basis of theses of theory of cutting of metals, engineering mechanics, theory of machines contact stiffness, methods of mathematical computer-based modeling and methods of statistical processing of experimental data. The experimental researches were spent with use of the modern measuring equipment. The improved loading scheme of feed slide unit movable platform, that is characterized by presence of additional force directed to equilibrate the axial component of technological load and allows to control the position of resulting feed force of modular power unit was worked out. The rational geomet rical and force parameters of movable platform loading scheme, that provide the rise of load-carrying capability without the increase of unit pressure, contact deformation and friction force on the guides junction were theoretically proved. The developed design methods and constructions of modular-type power units patented in Ukraine and applied in machine-tool construction and engineering industry.