scholarly journals Method of Structural Design of Heavy Machine Tools

2016 ◽  
Vol 22 ◽  
pp. 146-152 ◽  
Author(s):  
Viktor Kovalov ◽  
Yana Antonenko ◽  
Predrag Dašić
Keyword(s):  
Structural Design ◽  
Machine Tools ◽  
Heavy Machine

Modal Testing for Heavy Machine Tool Using Active Excitation

2014 ◽  
Vol 536-537 ◽  
pp. 1326-1332 ◽  
Author(s):  
Bo Luo ◽  
Bin Li ◽  
Xin Yong Mao ◽  
Hui Cai
Keyword(s):  
Machine Tool ◽  
Machine Tools ◽  
Inertial Force ◽  
Modal Testing ◽  
Modal Parameters ◽  
Part Quality ◽  
Machine Tool Structure ◽  
Machining Speed ◽  
Heavy Machine ◽  
Large Machine

For application in large machine tools, the machined part quality, accuracy as well as machining speed depende greatly on the dynamics of the structure. In this paper, an active-excitation modal analysis (AEMA), using inertial force of the moving slider to excite the structural modes, is proposed. Modal parameters of the machine tool structure estimated by AEMA are experimentally validated. Since the artificial excitation produced by elaborate excitation equipment is replaced by the inertial force of the slider, the proposed method is much more practical and economical than traditional methods.

Analysis and Optimal Design for the Static Stiffness of a 2UPS-UPR Parallel Machine Tool

2009 ◽  
Vol 626-627 ◽  
pp. 429-434 ◽  
Author(s):  
Liang Zhao ◽  
Ya Dong Gong ◽  
Guang Qi Cai
Keyword(s):  
Machine Tool ◽  
Structural Design ◽  
Machine Tools ◽  
Structural Parameters ◽  
Parallel Machine ◽  
Static Stiffness ◽  
Stiffness Analysis ◽  
Stiffness Model ◽  
Parallel Machine Tool ◽  
Stiffness Distribution

The stiffness model of the parallel machine tool is established by static analysis, the static stiffness analysis is carried out through numerical Simulation and the stiffness distribution is given. On the basis of this, the optimal objective is given which is the average of 729 values of -axis stiffness and -axis stiffness corresponding to 729 positions in the workspace. With MATLAB software, the effects are simulated which the structural parameters of the parallel machine tool have on their stiffness, their change rules are gained, and this provides a basis for the structural design of this type of machine tools.

A CAD/CAE-integrated structural design framework for machine tools

2016 ◽  
Vol 91 (1-4) ◽  
pp. 545-568 ◽  
Author(s):  
Junqiang Wang ◽  
Wentie Niu ◽  
Yue Ma ◽  
Lingjun Xue ◽  
Huaying Cun ◽  
...  
Keyword(s):  
Structural Design ◽  
Machine Tools ◽  
Design Framework

scholarly journals Rebuilding of heavy machine tools

2019 ◽  
Vol 570 ◽  
pp. 012017
Author(s):  
Z R Faskhieva ◽  
R M Khusainov
Keyword(s):  
Machine Tools ◽  
Heavy Machine

Fever Analysis and Engineering Applications of the Heavy Machine Tool's Main Bearing

2013 ◽  
Vol 690-693 ◽  
pp. 1983-1987
Author(s):  
Shui Sheng Chen ◽  
Shuang Qiang Li ◽  
Zhong Ping Hua ◽  
Chen Dai
Keyword(s):  
Machine Tools ◽  
Rolling Bearing ◽  
Cnc Machine Tools ◽  
Cnc Milling ◽  
Practical Application ◽  
Heavy Duty ◽  
Cnc Machine ◽  
Main Bearing ◽  
Main Method ◽  
Heavy Machine

Large heavy-duty CNC machine tools commonly used rolling bearing as Main bearing. This paper analyses the causes of Main bearing fever deeply, pointing out the mechanism of the bearing heating; combined with the practical application of the TK6926 landing CNC milling and borings main bearing, putting forward the main method to reduce the rolling bearing fever and achieved good results.

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