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EnglishThe paper describes the dynamical real-time simulation of the Z axis of a five axis machining center for high speed milling. The axis consists of a mechanical structure: machine head and electro-mandrel, a CNC Control System provided with feed drives and a Pneumatic System to compensate the weight of the entire vertical machine head. These three sub-systems have been studied and modeled by means of: - FEM modeling of the mechanical structure; - an equation set to represent the main functions of the CNC; - an equation set to represent the functioning of the Pneumatic System. These different modeling sub-systems have been integrated to obtain the entire actual dynamical behavior of the Z axis. A particular analysis was developed to represent the friction phenomena by a specific analytical model. Experimental activity was developed to test and validate the different modeling sub-systems, and other experimental tests were performed on the machining center to compare simulation outputs with experimental responses.
| Titolo: | Dynamic hybrid modeling of the vertical z-axis in an HSM machining centre towards virtula machining |
| Autore/i: | TANI, GIOVANNI; R. Bedini; FORTUNATO, ALESSANDRO; MANTEGA, CLAUDIO |
| Autore/i Unibo: | |
| Anno: | 2005 |
| Titolo del libro: | Proceedings of IDETC/CIE 2005 - ASME 2005 International Design Engineering Technical Conf. & Computer and Information in Engineering Conf. |
| Abstract: | The paper describes the dynamical real-time simulation of the Z axis of a five axis machining center for high speed milling. The axis consists of a mechanical structure: machine head and electro-mandrel, a CNC Control System provided with feed drives and a Pneumatic System to compensate the weight of the entire vertical machine head. These three sub-systems have been studied and modeled by means of: - FEM modeling of the mechanical structure; - an equation set to represent the main functions of the CNC; - an equation set to represent the functioning of the Pneumatic System. These different modeling sub-systems have been integrated to obtain the entire actual dynamical behavior of the Z axis. A particular analysis was developed to represent the friction phenomena by a specific analytical model. Experimental activity was developed to test and validate the different modeling sub-systems, and other experimental tests were performed on the machining center to compare simulation outputs with experimental responses. |
| Data prodotto definitivo in UGOV: | 10-ott-2005 |
| Appare nelle tipologie: | 4.01 Contributo in Atti di convegno |
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