Transversal and rotary tool positioner - has three point controller with integrating servo, whose characteristics are additionally modulated

摘要

The positioner of the tool assembly comprises a three-point controller with an integrating servo-element. The characteristics of the three-point controller are modulated by an additional system in such manner that the change-over magnitude, generated by this system, is incorporated at a suitable point into the control circuit. Pref., the modulating change-over magnitude is superimposed onto the control magnitude of the control circuit. Alternately, the modulating magnitude is superimposed on the guide magnitude of the control circuit. This modulating magnitude may be superimposed to that characteristic of the three-point controller which determines the width of the neutral zone. In front of the position control circuit may be connected a further control circuit, consisting of a summation point, an integrator and a linear feedback.