Title :
CNC Milling Machine Spindle Characteristics Analysis by FEM
Author_Institution :
Sch. of Eng., Shaoxing Univ., Shaoxing, China
Abstract :
As an important component of the CNC milling machine, the stiffness and vibratory modal of spindle need to be analyzed in the process of design. In this paper, the above two performance parameters were analyzed by use of finite element method (FEM). For stiffness analysis model, the beam elements (BEAM4) and spring-damper elements (COMBIN14) were used. For modal analysis, the solid elements (SOLID45) and spring-damper elements (COMBIN14) were used. Furthermore the relationships between natural frequency and stiffness of bearing, cantilever length of spindle were studied. The calculation results showed that the present modeling method was feasible for analyzing spindle component of CNC milling machine.
Keywords :
cantilevers; computerised numerical control; elastic constants; finite element analysis; machine bearings; machine tool spindles; milling machines; modal analysis; vibrations; CNC milling machine; FEM; beam elements; bearing; cantilever; finite element method; spindle; spring-damper elements; stiffness analysis; vibratory modal analysis; Ball bearings; Computer numerical control; Design automation; Design engineering; Finite element methods; Machine intelligence; Metalworking machines; Milling; Performance analysis; Solids; CNC Milling Machine; Characteristics analysis; FEM; Spindle;
Conference_Titel :
Intelligent Computation Technology and Automation (ICICTA), 2010 International Conference on
Conference_Location :
Changsha
Print_ISBN :
978-1-4244-7279-6
Electronic_ISBN :
978-1-4244-7280-2
DOI :
10.1109/ICICTA.2010.396
