International Scientific Journals
of Scientific Technical Union of Mechanical Engineering "Industry 4.0"

The article illustrates how, taking into account the achievements in science and technology, the kinematic chain from the driving force (engine) to the executive body (spindle) was shortened and became the shortest in the form of a motor-spindle. On the examples of lathes and milling machines, places of possible limitation of spindle rotation frequencies are highlighted. A self-acting motor-spindle, which has rotary and translational motion, is proposed.

Solving the problems caused by the growth of M-S diversity belongs to the latest current scientific field of research in modern mechanics and electromechanics, which is generalized to the concept of structural and systems research with models of microevolution and macroevolution. If genetic synthesis allows to find new structures of M-S and spindle nodes on their basis, then for the synthesis of schemes and structures it is advisable to use a system-morphological approach. To develop a morphological model, functional (morphological) features are selected, which are divided into three groups in accordance with the modular principle: the modules of the rotational motion of the spindle, the drive feed -translational motion and the clamp-expansion