Methods for determining parameters of the mechanism functional characteristics

The use of reconfigurable equipment is one of the current trends in developing the machine tool industry in the near future. Mechanism reconfiguration from one technological process to another is associated with introduction of new machined parts and devices. Therefore, inert masses of the mechanism moving parts, dynamic loads on its links and operation speed are changing. Knowing actual values of the inertial characteristics (mass, center of mass coordinates, axial and centrifugal moments of inertia of parts), it becomes possible to calculate the mechanism rational law of motion ensuring speed required by the technological process under the permissible dynamic loads on the mechanism. During the reconfiguration process, it is also possible to assess the mechanism technical condition by measuring a set of diagnostic parameters: displacement, speed, acceleration, forces and moments acting on the mechanism from the engine. To solve these problems, an experimental and theoretical method was developed to determine diagnostic parameters and inertial characteristics of the cyclic action mechanisms. A specially designed bench was used to determine the mechanism inertial characteristics making it possible to perform operational measurements in the workshop conditions.
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