Dynamic characteristics and reliability analysis of ball screw feed system on a lathe

Xu, Ming; Cheng, Bing; Li, Changyou; Zhang, Hongzhuang; Liu, Zhendong; He, David; Zhang, Yimin

doi:10.1016/j.mechmachtheory.2020.103890

Cited by 43 publications

(6 citation statements)

References 52 publications

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“…Under the action of an axial load, the lead screw will be stretched or compressed in the axial direction. The amount of deformation is related to the mode of support and the working position of the nut, whose axial deformation [24] is…”

Section: Elastic Deformation Due To Incremental Axial Loadmentioning

confidence: 99%

Deformation error compensation by stiffness model of mechanical joint on a flexible track drilling robot for aircraft assembly

Li¹,

Tian

Hu³

et al. 2023

Preprint

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The level of automation and precision in aircraft assembly determines the effectiveness and quality of aircraft manufacturing. In contrast, the unstable localization accuracy resulting from the layout pattern of flexible track drilling robot has limited their further development and applications in domains with high machining accuracy requirements, such as aircraft assembly. This study begins by presenting the paradox between the need for high-precision drilling tasks during aircraft construction and the lack of accuracy of automated drilling equipment. The problem of self-precision loss due to flexible track drilling devices is examined in a new application scenario where the overall position and pose layout change with the location of the process station. Then, the characteristics of the weak rigidity of the transmission system of the flexible track drilling robot at the joint surface and the variation of the transmission axial load due to variations in the position and pose of the drilling process station are examined. In addition, an equivalent stiffness model is developed to predict the incremental error of the entire process station, and the incremental error conjecture due to the elastic deformation of the coupling surface of the transmission system is proposed as an optimization algorithm for global position accuracy compensation. Finally, the incremental error conjecture is discussed and validated by designing ablation test groups one by one and evaluating the effect of the precision compensation algorithm. Experimental results showed that the incremental error compensation method optimized 68.67 percent of the total error.

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Section: Elastic Deformation Due To Incremental Axial Loadmentioning

confidence: 99%

Deformation error compensation by stiffness model of mechanical joint on a flexible track drilling robot for aircraft assembly

Li¹,

Tian

Hu³

et al. 2023

Preprint

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show abstract

“…The twin-ball-screw drive mechanism (TBSDM) of a gantry-type computer numerical control (CNC) machine tool is essential to the overall structure. Its reliable dynamic qualities significantly affect the control effectiveness [1][2][3][4][5]. The precise functioning and maintenance of the TBSDM are crucial for obtaining and sustaining high levels of precision.…”

Section: Introductionmentioning

confidence: 99%

The Structure-Dependent Dynamic Performance of a Twin-Ball-Screw Drive Mechanism via a Receptance Coupling Approach

Chantal,

Lu,

Liu

et al. 2024

Actuators

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The drive at the center of gravity (DCG) concept-based twin-ball-screw drive mechanism (TBSDM) is vital in automated factories for its robustness and reliability. However, changes in the worktable mass or position result in changes in the center of gravity (CG), significantly affecting the system’s dynamic properties. In this regard, this paper introduces a novel analytical model using improved receptance coupling to analyze vibrations in four modes. A mathematical framework for the twin TBSDM is generated, and the effect of changing the worktable position–mass on each mode is examined. The applicability of the proposed method is verified based on dynamic experiments that were carried out on a TBSDM of a CNC grinding wheel machine tool. After thoroughly analyzing the experimental and theoretical results, it is revealed that changing the worktable position primarily influences the rotational and axial vibrations of the twin ball screw (TBS). Furthermore, changes in the worktable mass significantly affect the coupling vibration among the TBSs and rotors or bearings. Moreover, in terms of performance, the variances between the theoretical and experimental natural frequencies are consistently below 5%. Thus, the proposed method is promising for the improvement of the modeling and analysis of the TBSDM.

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“…Wang et al [13] developed a time-varying dynamic model to investigate the vibration characteristics of multi-degree-of-freedom feed system, the restoring force of screw nut was considered as a piece-wise function, the coupling effects of screw-nut position and excitation amplitude were investigated by simulation. Xu et al [14] presented an analytical restoring force function to study the effect of sliding platform position, external excitation, and nominal contact angles. Moreover, the dynamic response of the system is discussed.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear dynamic analysis of variable lead preloaded single nut ball screw considering the variation of working parameters

Liu

Zhang

et al. 2022

Nonlinear Dyn

Self Cite

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In this study, a 5-degrees-of-freedom dynamic model of variable lead preloaded single nut ball screw is proposed. The proposed model considers the effect of excitation amplitude, deflection angle, the number of balls, and the preload into consideration. Moreover, to study the effect of working parameters on nonlinear dynamics, bifurcation diagram, 3-D frequency spectrum, phase diagram and Poincaré section with different system parameters are shown in discussion section. The numerical analysis indicates that the system can exhibits different motion states, and the continuous frequency component can be observed. Moreover, a series of experiments are conducted to estimate the dynamic parameters and validate the proposed dynamic model.

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Dynamic characteristics and reliability analysis of ball screw feed system on a lathe

Cited by 43 publications

References 52 publications

Deformation error compensation by stiffness model of mechanical joint on a flexible track drilling robot for aircraft assembly

Deformation error compensation by stiffness model of mechanical joint on a flexible track drilling robot for aircraft assembly

The Structure-Dependent Dynamic Performance of a Twin-Ball-Screw Drive Mechanism via a Receptance Coupling Approach

Nonlinear dynamic analysis of variable lead preloaded single nut ball screw considering the variation of working parameters

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