scholarly journals New High-Speed Machine Tool Structure by Holistic Mechatronic Systems Design

Procedia CIRP ◽  
2012 ◽  
Vol 1 ◽  
pp. 307-312 ◽  
Author(s):  
R. Neugebauer ◽  
S. Ihlenfeldt ◽  
U. Frieß ◽  
M. Wabner ◽  
S. Rauh
2011 ◽  
Vol 189-193 ◽  
pp. 2046-2049
Author(s):  
Jun Hong Cheng

High-speed machining is playing a more important role in modern manufacturing technology. The feed system of high-speed machine tool is one of the most important components. The linear motor has been widely used in high-speed machine tool. In this paper,a kind of machine tool feed system directly driven by a linear motor is introduced,and its technical parameters are analyzed and calculated. The main parameters’ influence factors and best scope are given out.These results can offer theoretical basis for manufacturing machining technology.


Author(s):  
Lei Yang ◽  
Lei Wang ◽  
Wanhua Zhao

In the working process of high-speed multiaxis machine tools, inertial loads due to high feed acceleration and time-varying gravity loads due to changing configuration of multiaxis structure result in time-varying complex loads applied to linear rolling guideway. Existing models cannot efficiently represent the effect of complex loads on multidirectional stiffness variation of linear rolling guideway. In this paper, a hybrid model of multidirectional stiffness of linear rolling guideway and the solving algorithm are proposed. The complex loading conditions of linear rolling guideway in high-speed multiaxis machine tool structure are considered. And contact flexibilities between rolling balls and grooves are modeled with the effect of elastic deformations of runner block and rail. The proposed model can calculate the multidirectional stiffness with high accuracy. Meanwhile the differences between the stiffness characteristics in different directions are represented correctly. The variations of multidirectional stiffness of linear rolling guideway under time-varying combined loads are analyzed. This study provides an effective way to comprehensively evaluate the stiffness characteristics of linear rolling guideway which can contribute to the dynamic analysis and active design of high-speed machine tool structure.


2011 ◽  
Vol 110-116 ◽  
pp. 1799-1807
Author(s):  
Sunilkumar S. Honnungar ◽  
V. Prabhu Raja ◽  
P. R. Thyla ◽  
M. Thirumalaimuthukumaran

— High speed machine tool is one of the basic needs in catering to a wide range of machining parameters with tight tolerance band. In high speed machine tool many key factors like geometric, cutting force and thermal errors decides the performance of the machine. However amongst these three, error due to thermal deformation is an important factor in influencing the accuracy level of component produced. A survey amongst Indian machine tool manufacturers reveals that there is a strong need to infuse recent technological developments in thermal error prediction and derive methodologies to minimize the same in high speed machine tool. This paper attempts snapshots of a review relating to the errors causing thermal deformations and the modeling techniques developed by researchers and practitioners globally in present scenario. The conclusions made at the end of this paper may not give the full solutions to the problems relating to thermal error but, gives a broad perspective for the Indian machine tool manufacturers’, practitioners as well researchers in India to look in to the research relating to thermal error modeling, analysis and corrective measures.


Sign in / Sign up

Export Citation Format

Share Document