Closed Loop Compensation of Linear Deviations in Ball Screw Drives

2020 ◽  
pp. 187-194
Author(s):  
Diego Vicente ◽  
Matías Paesani ◽  
Fernando Villegas ◽  
Rogelio Hecker
Keyword(s):  
Closed Loop ◽  
Ball Screw ◽  
Ball Screw Drives

Finite Element Modeling and Tansfer Function Prediction of Ball-Screw Drive System

2010 ◽  
Vol 431-432 ◽  
pp. 225-228
Author(s):  
Li Hua Lu ◽  
Ying Chun Liang ◽  
Fu Li Yu ◽  
Bao Ku Su
Keyword(s):  
Finite Element ◽  
Closed Loop ◽  
Constraint Equation ◽  
Ball Screw ◽  
The Finite Element Method ◽  
Worst Case ◽  
Thrust Bearings ◽  
Screw Drive ◽  
Ball Screw Drive ◽  
Ball Screw Drives

The closed-loop performance of a ball-screw drive is usually limited by a resonance in which the carriage oscillates in the direction of motion as the screw undergoes longitudinal and torsional deformation. By means of the finite element method (FEM), a model of ball-screw system dynamics is presented by taking into account the distributed inertia of the screw and the compliance and damping of thrust bearings, nut and coupling. Transmission ratio is modeled using DOFs (degree of freedoms) constraint equation. The model is found to accurately predict the transfer function from motor torque to carriage position. Comparing the predicted responses with experiments performed on a pair of ball-screw drives, the resonance frequency is misestimated as much as 5% in the worst case.

Two-degree-of-freedom control design for ball screw driving table using full-closed loop

2004 ◽  
Vol 2004.57 (0) ◽  
pp. 441-442
Author(s):  
Hiroshi HAMAMATSU ◽  
Kentaro Kondo ◽  
Shigeru FUTAMI ◽  
Teruo TSUJI ◽  
Akihiro YAMAMOTO ◽  
...  
Keyword(s):  
Closed Loop ◽  
Control Design ◽  
Degree Of Freedom ◽  
Ball Screw ◽  
Screw Driving ◽  
Two Degree Of Freedom

Integrated Diagnostic and Preload Control for Ball Screw Drives by Means of Self-Sensing Actuators

2013 ◽  
Vol 769 ◽  
pp. 271-277 ◽  
Author(s):  
Christopher Ehrmann ◽  
Stefan Herder
Keyword(s):  
Signal Processing ◽  
Economic Integration ◽  
Machine Tools ◽  
Processing System ◽  
Ball Screw ◽  
Measured Signal ◽  
Mechatronic Systems ◽  
Signal Processing System ◽  
High Flexibility ◽  
Ball Screw Drives

Piezoelectric ceramics can be used as sensors, as well as actors. The concept of a self- sensing-actuator tries to use both modes of operation in one device, allowing the economic integration of mechatronic systems. Possible fields of application are ball screws of machine tools, where wear-induced degradation of the preload can be compensated. Furthermore, the signal processing part of such a system can be used to gather information related to the condition of the ball screw. Both excitation signal generation and filtering of the measured signal have to offer high flexibility and signal fidelity. In this article the concept of a power amplifier and its corresponding signal processing system are presented.

scholarly journals Experiment-based thermal behavior research about the feed drive system with linear scale

2018 ◽  
Vol 10 (11) ◽  
pp. 168781401881235
Author(s):  
Yang Li ◽  
Jun Zhang ◽  
Dongxu Su ◽  
Changxing Zhou ◽  
Wanhua Zhao
Keyword(s):  
Closed Loop ◽  
Great Influence ◽  
Drive System ◽  
Ball Screw ◽  
Heat Sources ◽  
Positioning Error ◽  
Thermally Induced ◽  
Feed Drive ◽  
Feed Drive System ◽  
Screw Feed

Positioning error of the feed drive system has great influence of the machining quality. In order to guarantee the positioning accuracy, the linear grating scale is adopted to form a full-closed loop. However, due to the inner heat sources and environmental temperature variations, the linear grating scale could expand and the thermally induced positional deviation is generated. In this article, temperatures and positional deviations of the ball screw feed drive system and the linear motor feed drive system equipped with linear scales were tested. The factors that affect the positioning error were analyzed. Then, the temperatures and positioning coordinates were used as inputs to build the thermally induced positional deviation model of full closed-loop feed drive system. Based on the model, coordinate values of the machine tool were adjusted and the compensation was implemented. The testing results verified that after compensation, the positional deviations were greatly reduced.

Control of ball screw drives based on disturbance response optimization

CIRP Annals ◽  
2013 ◽  
Vol 62 (1) ◽  
pp. 387-390 ◽  
Author(s):  
Kaan Erkorkmaz ◽  
Yasin Hosseinkhani
Keyword(s):  
Ball Screw ◽  
Disturbance Response ◽  
Response Optimization ◽  
Ball Screw Drives
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