B32 Influence of Friction Characteristics on Dynamic Behavior of Feed Drive System of Machine Tools

2008 ◽  
Vol 2008.7 (0) ◽  
pp. 245-246
Author(s):  
Kazuki KAMATA ◽  
Satosi KANEKO ◽  
Masaomi TSUTSUMI ◽  
Ryuta SATO
Keyword(s):  
Dynamic Behavior ◽  
Machine Tools ◽  
Drive System ◽  
Friction Characteristics ◽  
Feed Drive ◽  
Feed Drive System

scholarly journals MODELING AND IDENTIFICATION OF BALL SCREW FEED DRIVE SYSTEMS

2020 ◽  
Vol 5 (8) ◽  
Author(s):  
M. A. Asy ◽  
S. A. Hassan ◽  
M. H Elsaroukh ◽  
M. H Elsaroukh
Keyword(s):  
Frequency Response ◽  
Dynamic Behavior ◽  
Machine Tools ◽  
Drive System ◽  
Torsional Stiffness ◽  
Ball Screw ◽  
Axial Stiffness ◽  
Feed Drive ◽  
Feed Drive System ◽  
Screw Feed

In this paper, the ball screw feed drive system is simulated and it?s frequency response is studied. Various parameters effect on the dynamic behavior of the ball screw system have been investigated. Ball screw feed drive system is used in high speed machine tools due to their high efficiency. Estimation of the dynamic behavior of ball screw feed drive mechanism is very important in the industrial processes in order to get high demand for precision and accuracy in machine tools. Optimizing the drive operation can provide significant cost savings. A four degree of freedom system, lumped parameter model is used for modeling a single axis ball screw feed drive system and use it to study and analyze vibrations in this model. The mathematical modeling provides an important information about frequency response when applying different levels of table mass, stiffness of the nut, axial stiffness of the ball screw shaft and torsional stiffness of the ball screw on the system, to describe the effects of these parameters on the system dynamic behavior. The study of dynamic response of ball screw feed drive system provides a better performance control and better understanding of ball screw dynamics.

Study on High Speed Feed Drive System for Machine Tools -Improvement of PID Control Parameter-

1993 ◽  
Vol 5 (4) ◽  
pp. 357-362
Author(s):  
Toshitake Tateno ◽  
◽  
Hiromu Nakazawa ◽  
Keyword(s):  
Pid Control ◽  
Machine Tools ◽  
High Speed ◽  
Drive System ◽  
Control Parameters ◽  
Hydraulic Actuator ◽  
Feed Drive ◽  
Large Size ◽  
Cutting Operation ◽  
Feed Drive System

In order to realize feed rate of 20m/min for cutting operation of medium and large size machine tools, a new high speed and high accuracy feed drive system which has a servomotor and ballscrew combined with a hydraulic actuator has been developed. As stated in a previous paper this system can drive ten times faster than conventional rate with considerable accuracy. This paper describes a method for determining optimal PI control parameters of the electric servomotor and PD control parameters of the hydraulic actuator. In order to make the best use of the hydraulic actuator a new function which compares the force of electric servomotor with that of hydraulic actuator is proposed. The experimental results show that the controlling parameters determined by this method reduce motor power and the method is proved to be effective.

Experimental Study on Dynamic Behavior of High Precision Servo Motor for Machine Tools

2017 ◽  
Vol 863 ◽  
pp. 224-228
Author(s):  
Takanori Yamazaki
Keyword(s):  
Machine Tools ◽  
Nonlinear Behavior ◽  
Drive System ◽  
Servo Motor ◽  
Ac Servo ◽  
Feed Drive ◽  
Rolling Elements ◽  
Ac Servo Motor ◽  
Feed Drive System ◽  
Nonlinear Behaviors

In the field of machining industries it is always required to improve the accuracy of precise products, die and molds. The feed drive system for the machine tools consists of an AC servo motor, an amplifier and rolling elements etc. It is well known that the nonlinear behaviors of the rolling elements influence the motion accuracy of the feed drive system. However, in spite of the analysis of static behaviors have been done, the dynamic behaviors are not so examined. Our special interest is how to control the nonlinear behaviors of the rolling elements and to operate the feed drive system with high accuracy. In order to model the nonlinear behaviors of the feed drive system, we measure the transient response when the step inputs of microscopic displacement are input to the AC servo motor and the detail analysis will be done. Experimental results show that the step responses become slow as the input displacement becomes microscopic. It means that with the ball bearing built into the AC servo motor used to feed driving system have the nonlinear behavior in microscopic displacement range.

Stiffness matching method for the ball screw feed drive system of machine tools

2020 ◽  
Vol 34 (7) ◽  
pp. 2985-2995
Author(s):  
Gaiyun He ◽  
Panpan Shi ◽  
Dawei Zhang ◽  
Guangming Sun
Keyword(s):  
Machine Tools ◽  
Drive System ◽  
Ball Screw ◽  
Matching Method ◽  
Feed Drive ◽  
Feed Drive System ◽  
Screw Feed
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