Motion Law Assisted Design to Reduce the Vibrational Effect of Controlled Axes in Automated Machines

Abstract

The vibrational effects created by machines moving parts is strictly related with the characteristics of the law of motion they implement, both in case of cam-follower devices and in case of servo system electronic cam controls. One of the most effective way to prevent these harmful phenomena is to limit the harmonic content of the law of motion by designing their curve as a combination of few, low frequencies, sinusoidal curves, but this often makes difficult to satisfy other functional requirements like precision points or constant speed intervals. In this work an original method to solve this problem is illustrated. It adds to the programming language CamOMiLe new functions to assist the functional design of mechanisms. The combination of the classical theory results with the flexibility of CamOMiLe building block approach makes possible to address a large number of practical applications and two examples of them are illustrated.

Experimental Results Of A Self-Learning Compensation System For High Precision Manufacturing

“…In most cases applications described in literature are focused only on one specific aspect of the machine. This seems to be a critical aspect, since some works just consider the compensation of thermal errors [9,15], others focus only on the speed of a predictive and compensative algorithm (without considering the data it can treat) and others only implement software for better errors measurement [16,17]. Improve machine error compensation by applying software methods which consider the entirety of the factors is still an ongoing goal.…”