Economic Drive Concept for Flexible Forming Presses

authored by: Bernd Arno Behrens, Richard Krimm, Thomas Nitschke
Abstract: A servo-driven eccentric press is a synonym for innovative and economic metal forming technology. The path-time-characteristic of the ram of servopresses can be adapted to individual requirements of various forming processes. To achieve a high dynamic, the rotary inertia of the drive train should be as low as possible. Thus, a flywheel is not suitable to provide the energy required for both, the forming process as well as the ram kinematic. Hence the eccentric shaft is driven by the electric motor only. As a consequence, the press force has to be provided completely via the torque of the servomotor. High investment costs resulting from the required size of the drive components is a challenge to be conquered. This pushes the costs for the drive components. Another challenge is the unbalanced power consumption of the servomotor. Energy-converting and energy-storing systems are essential to compensate the power peaks resulting from the forming process and inertia forces. Nevertheless, these systems are expensive and reduce the energy efficiency of the press. Facing these challenges, a novel and innovative drive concept for eccentric presses is being developed at the Institute of Forming Technology and Machines (IFUM). The concept and the results of a first multibody simulation are presented in this paper.
Organisation(s): Institute of Metal Forming and Metal Forming Machines
Type: Conference contribution
Pages: 255-261
No. of pages: 7
Publication date: 24.04.2013
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: General Materials Science, Mechanics of Materials, Mechanical Engineering
Sustainable Development Goals: SDG 7 - Affordable and Clean Energy
Electronic version(s): https://doi.org/10.4028/www.scientific.net/KEM.549.255 (Access: Unknown)
: Details in the research portal "Research@Leibniz University"

BibTeX

@inproceedings{70c9b6ed2c594a7db6b73d1f2d316123,
title = "Economic Drive Concept for Flexible Forming Presses",
abstract = "A servo-driven eccentric press is a synonym for innovative and economic metal forming technology. The path-time-characteristic of the ram of servopresses can be adapted to individual requirements of various forming processes. To achieve a high dynamic, the rotary inertia of the drive train should be as low as possible. Thus, a flywheel is not suitable to provide the energy required for both, the forming process as well as the ram kinematic. Hence the eccentric shaft is driven by the electric motor only. As a consequence, the press force has to be provided completely via the torque of the servomotor. High investment costs resulting from the required size of the drive components is a challenge to be conquered. This pushes the costs for the drive components. Another challenge is the unbalanced power consumption of the servomotor. Energy-converting and energy-storing systems are essential to compensate the power peaks resulting from the forming process and inertia forces. Nevertheless, these systems are expensive and reduce the energy efficiency of the press. Facing these challenges, a novel and innovative drive concept for eccentric presses is being developed at the Institute of Forming Technology and Machines (IFUM). The concept and the results of a first multibody simulation are presented in this paper.",
keywords = "Multibody simulation, Power split, Press drive, Servo presses",
author = "Behrens, {Bernd Arno} and Richard Krimm and Thomas Nitschke",
year = "2013",
month = apr,
day = "24",
doi = "10.4028/www.scientific.net/KEM.549.255",
language = "English",
isbn = "9783037856710",
series = "Key Engineering Materials",
pages = "255--261",
booktitle = "Sheet Metal 2013",
note = "15th International Conference on Sheet Metal, SheMet 2013 ; Conference date: 25-03-2013 Through 27-03-2013",
}