Patent ID: 7174284
Filing Date: 2007-02-06
Classification: G05B,Y02P

Abstract:
1. Apparatus for simulation of the mechanical behavior of the mechanism of machine tools or production-line machines having multiple drive controllers for driving multiple axes, said apparatus comprising: a digital controller, said digital controller being adapted for producing respective desires axis values; an auxiliary computer connected to the digital controller for receiving said desired axis values from the digital controller, said auxiliary computer including mathematical model means for calculating respective actual axis values from said respective desired axis values simultaneously using mathematical models of drive controllers of the respective axes, said mathematical models including models of both regulated and unregulated drive controllers, said mathematical models using said respective desired axis values; and mechanism model means for generating a state signal using said actual axis values produced by said mathematical models of said drive controllers of the respective axes, said mechanism model means connected for receiving said actual axis values from said mathematical model means and for supplying said state signal to said digital controller as feedback, whereby both regulated and unregulated axes of the machine are simulated simultaneously, at least one of the multiple axes having NC-axis drive control and at least one of the multiple axes having a PLC-axis drive control, so that at least one NC-model and at least one PLC-model are used to compute the respective actual axis values, and wherein a geometric kinematic mechanism model of the behavior of the axes in the mechanism of the machine is used to produce at least one state signal calculated using said respective actual values.