Patent · US Active

Machining of workpieces with model-supported error compensation

US11204595B2 · kind B2 · utility

0Cited by

3References

13Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Philipp Rost · Nürnberg, DE
Elmar Schäfers · Bad Mergentheim, DE
Jürgen Reiser · Meerbusch, DE

Key dates

Filing date	Aug 3, 2018
Grant date	Dec 21, 2021
Priority date	—
Expiry date	Aug 14, 2038

Classification

Technology area (CPC G)Physics
CPC primaryG05B2219/42156
WIPO fieldControl
WIPO sectorInstruments

Abstract

A control device of a machine tool includes a position controller and a model of a position-controlled axis. The position controller receives a position setpoint value, a corresponding actual position value and a compensation value; determines therefrom a resulting value; determines based on the resulting value an actuating signal; and outputs the actuating signal to the position-controlled axis. The position and/or the orientation of the tool relative to the workpiece are adjusted based on the actuating signal. A sequence of successive control errors is stored, in a storage device and read out sequentially in accordance with a sequence of the position setpoint values and supplied to the model. The model determines from the read-out control error a respective compensation value which is then supplied to the position controller, while simulating the mechanically dynamic behavior of the position-controlled axis.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.