Page 13 - June

METALWORKING EQUIPMENT AND TOOLS
Investigation of the properties and the possibility

of using polynomials approximating an ideal

low-pass filter for parametric synthesis of feed

drives for CNC machines*

In the study [1], a method of parametric synthesis of a two-mass feed drive is described,
in which one mass is the moment of inertia of the rotating part of the drive J1, and the other
is the moment of inertia of the movable unit J2 reduced to the screw. The elastic connection
between the masses c1,2 is determined by the axial stiffness of the drive mechanism. Features of
the simulations of the engine of the power control system are described in [2, 3]. The synthesis
process consists in determining the parameters of the electromechanical system, obtained by
equating the coefficients of the characteristic polynomial to the coefficients of the reference
polynomials approximating the ideal filter of the lower frequencies. The transfer functions of
the drive, obtained on the basis of the indicated polynomials, have different frequency and time
characteristics, have different theoretical and practical feasibility.

Stanochniy park 13