Iterative NC program modification and energy saving for a CNC machine tool feed drive system with linear motors

2019 ◽  
Vol 102 (9-12) ◽  
pp. 3543-3562 ◽  
Author(s):  
Yogi Muldani Hendrawan ◽  
Abdallah Farrage ◽  
Naoki Uchiyama
2011 ◽  
Vol 141 ◽  
pp. 203-207
Author(s):  
Ya Wei Zhang ◽  
Wei Min Zhang

CNC machine tools has always screw joints in its feed drive systems; In order to obtain good performance of CNC machine tool, it is necessary to model the screw joint with more accuracy and to research its influence on the vibration characters of the feed drive system. In this paper, the screw joint is analyzed by multi-body system theory and is modeled as flexible multi-body; Its mathematical describe of constraint condition is given by the modeling of screw joint. A revise factor is introduced into the process of FEM simulation to reflect the deformation in the screw joint. By this way, the effect of deformation in the screw joint is researched in the modeling under the ANSYS circumstance, the harmonic response under considering deformation contrast to that of without deformation. From the analysis in the simulation, it is necessary to take the deformation of screw joint into account.


2015 ◽  
Vol 772 ◽  
pp. 229-234
Author(s):  
Radu Eugen Breaz ◽  
Octavian Bologa

This paper presents some simulation based upon a dynamic model of a feed-drive within the structure of a CNC machine tool. A DC servomotor was considered as actuation device for the feed drive. For a given set of parameters for the position controller, two fuzzy types of fuzzy controllers were tested by means of simulation. The first fuzzy controller was a proportional one, with one input and one output, while the second one was a two variables one, with two inputs and one outputp.


2012 ◽  
Vol 601 ◽  
pp. 232-236
Author(s):  
Zhi Hong Liu ◽  
Gang Liao ◽  
Wen Tie Niu ◽  
Jun Qiang Wang

An online approach was presented to test and evaluate the dynamic performance of feed drive system. At first, the position ramp trajectory, speed ramp trajectory and reciprocating trajectory were run separately and the response data was obtained from Numerical Control System. Then, a set of criterions were defined to evaluate the dynamic performance of five axes respectively. Finally, the integrated performance of the feed drive system was evaluated through analytic hierarchy process. On the basis of above theory, a rapid test and evaluation software was developed and this paper presented the results achieved in practice with this software. The research could provide a foundation for understanding variation rule of dynamic performance of feed drive system and improving its dynamic performance


2020 ◽  
Vol 246 ◽  
pp. 118976 ◽  
Author(s):  
Qianqian Ji ◽  
Congbo Li ◽  
Daoguang Zhu ◽  
Yan Jin ◽  
Yan Lv ◽  
...  

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