Process and control for creating and optimizing flexible, high-quality cam functions directly via the control program / user program

摘要

For this purpose, a movement of a movable machine element is described in sections by a cam disc function (f (x)), in that individual successive movement sections (x1 ... xn) are defined by segments (B) and / or points (A) and between such movement sections according to a Predefinable interpolation rule (C) is interpolated, commands for specifying and / or inserting points, segments and interpolation rules being provided in the runtime system of the controller. A combination of a polynomial with at least polynomial degree six and a sine function as a trigonometric component is used to define segments (B). This enables the motion laws for cam gears in accordance with VDI 2143 to be directly implemented. Linear connections (c1) or cubic splines (c2) or Bezier splines serve as the interpolation rule for the connection between successive movement sections. Parameters can be derived directly from a machining process. An additional computer system outside of the control is not required to create and optimize cam functions.