Device and method for apportioning a movement of a machine element along a drive axis of a machine tool or production machine

US6982536B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Klaus Geissdörfer · Erlangen, DE
• Carsten Hamm · Erlangen, DE
• Wolfgang Papiernik · Neunkirchen, DE

Key dates

• Filing date: Nov 29, 2004
• Grant date: Jan 3, 2006
• Expiry date: Nov 29, 2024

Classification

• Technology area (CPC G): Physics
• CPC primary: G05B2219/42219
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

A device and method for apportioning a movement of a machine element driven by at least two drives for movement along a drive axis of a machine tool or production machine are described. A low-pass filter filters predetermined desired drive axis values to generate filtered desired drive axis values, with a first controller receiving the filtered desired drive axis values as control input value for controlling a first of the at least two drives. A delay unit with a constant group delay time temporally delays the desired drive axis values and generates delayed desired drive axis values, whereafter a subtracter determines a difference between the filtered desired drive axis values and the delayed desired drive axis values. A second controller receives the determined difference and provides, based on the determined difference, a second control input value for controlling a second of the at least two drives. With these features according to the invention, a movement of a machine element along a drive axis of a machine tool or production machine can be optimally apportioned between two or more drives.