A new double-face online dynamic balance device and its control system for high speed machine tool spindle

2014 ◽  
Vol 22 (4) ◽  
pp. 1037-1048 ◽  
Author(s):  
Zhang Shihai ◽  
Cai Yujun
Keyword(s):  
Control System ◽  
Machine Tool ◽  
High Speed ◽  
Dynamic Balance ◽  
Machine Tool Spindle ◽  
High Speed Machine

scholarly journals Optimization of High Speed Machine Tool Spindle to Minimize Thermal Distortion

Procedia CIRP ◽  
2017 ◽  
Vol 58 ◽  
pp. 457-462 ◽  
Author(s):  
Srinivas N. Grama ◽  
Ashvarya Mathur ◽  
Ramesh Aralaguppi ◽  
T. Subramanian
Keyword(s):  
Machine Tool ◽  
High Speed ◽  
Thermal Distortion ◽  
Machine Tool Spindle ◽  
High Speed Machine

Electric Machine Technology Needs Analysis of the Linear Motor

2014 ◽  
Vol 490-491 ◽  
pp. 1138-1141
Author(s):  
Yu Ping Zhao ◽  
Yu Hai Xu
Keyword(s):  
Control System ◽  
Machine Tool ◽  
High Speed ◽  
Linear Motor ◽  
Test System ◽  
Electric Machine ◽  
Special Role ◽  
Technical Requirements ◽  
Drive Control ◽  
Five Axis

This article is in view of the linear motor aspects of application development in the field of electric machine tool equipment technical requirements analysis, linear motor with its high speed and high acceleration transmission has been in processing center, CNC milling machine, lathe, grinding machine, compound machine, laser is widely used in machine tools and heavy machine tool, in the aerospace, automotive, mold, energy, general machinery in areas such as plays a special role. Linear motor has precise control test system, reasonable matching of the technical indicators, to make it on the electric machine driven by linear motor can realize stable precision mobile and linear motor used for electric spark machine tool is another innovative application achievement of the modern advanced manufacturing industry. Domestic electric machine mostly adopts five axis NC gear rack drive control system, using the linear motor drive control system was still in the stage of research, to promote the linear motor is widely used in the field of electric machine, and the demand analysis.

scholarly journals A Predictive Velocity Observer in Wire Bonder’s Control System

2014 ◽  
Vol 2014 ◽  
pp. 1-10
Author(s):  
Lei Zhou ◽  
Jiangang Li ◽  
Wennong Zhang ◽  
Zexiang Li
Keyword(s):  
Control System ◽  
High Speed ◽  
Servo System ◽  
Phase Lag ◽  
Phase Lead ◽  
Key Factor ◽  
Motion Speed ◽  
Phase Lags ◽  
Velocity Observer ◽  
High Speed Machine

Wire bonder is a typical high speed machine. The motion speed of XY-stage is the key factor of bonding efficiency. However, phase lag elements in the servo system limit the bandwidth and slow down the system’s response. A predictive velocity observer is proposed to compensate for those phase lags. Then, the velocity loop controller can be designed as for a servo system which does not have those phase lags. Loop gains are enlarged and bandwidth is enlarged correspondingly. Then, the motion speed is improved and settling time is decreased. Experiment results verify that the predictive velocity observer provided a significant phase lead and the performance of wire bonder is improved.

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