Development of a High-Performance Spindle for Multitasking Machine Tools

Autor:	Aoki Mitsuho, Kazuyuki Kawashima, Atsushi Matsubara, Taku Yamazaki, Toshiyuki Muraki, Iwawaki Kenji
Rok vydání:	2009
Předmět:	Engineering drawing business.product_category business.industry Computer science Mechanical Engineering Human multitasking Software engineering business Industrial and Manufacturing Engineering Machine tool
Zdroj:	International Journal of Automation Technology. 3:378-384
ISSN:	1883-8022 1881-7629
Popis:	In recent years, high-performance spindles are required for multi-tasking machine tools to enhance the productivity. Such spindles enable efficient rough cutting and fine finishing of a workpiece on one machine. In order to meet this requirement, a spindle unit must be highly stiff and operate at high rotational. Spindle specifications require a rotational number of 50,000min-1 and dN value of 3,000,000, a smaller motor was downsized and an electric loss restrained by reducing the thickness of laminate sheets composing the rotor core. A direct-injection type of ultra trace quantity lubrication and a preload switching system were used for ball bearings for high rotational speed and high stiffness. We discuss how these technical requirements were met and the results of basic experiments.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ec809effc309b225899e982a4edd6c5f https://doi.org/10.20965/ijat.2009.p0378 Zobrazit plný text záznamu