Dynamic characteristics and research on the dual-drive feed mechanism

The dual-drive feed mechanism (DDFM) based on the drive at the center of gravity (DCG) principle has been widely adopted in computer numerical control (CNC) machines and industrial robots that require high precision and high stability. The friction force affected by feed rates and moving parts positions can change the contact stiffness of kinematic joints, which can further impact on dynamic characteristics of the DDFM and cause dual axes difference. Considering the contact stiffness of kinematic joints, this paper adopts the lumped parameter method to establish the general dynamic model of the DDFM. The equivalent axial stiffness of kinematic joint and feed system transmission stiffness are all derived regarding the influence of feed rates and moving parts positions. The dynamic experiments on the DDFM with different feed rates and moving parts positions are carried out to verify the proposed model. The results suggest that in the motion stage, the DDFM’s natural frequency is greater than that in the static stage, and behaves differently in different feed rates and moving parts positions. The axial contact stiffness value of the ball-screw and nut B can reach 0 when the feed rate increases. When the moving parts are in the middle position of the crossbeam, the DDFM is the most stable and the dynamic performance is the best.

[1]  Feng Yuan,et al.  Geometric and thermal error compensation for CNC milling machines based on Newton interpolation method , 2013 .

[2]  Jun Zhang,et al.  Effect of the screw–nut joint stiffness on the position-dependent dynamics of a vertical ball screw feed system without counterweight , 2018 .

[3]  Qi Liu,et al.  Dynamic Modeling and Experiment Research on Twin Ball Screw Feed System Considering the Joint Stiffness , 2018, Symmetry.

[4]  Atsushi Nagai,et al.  A Hierarchical Structure for the Sharp Constants of Discrete Sobolev Inequalities on a Weighted Complete Graph , 2017, Symmetry.

[5]  Mingyang Wang,et al.  Study on the Similarity Laws for Local Damage Effects in a Concrete Target under the Impact of Projectiles , 2015 .

[6]  Yang Qingyu.  Synchronous Control System Modeling of Gantry-Type Machine Tools , 2012 .

[7]  Wentao Huang,et al.  A Vibration Model of Ball Bearings with a Localized Defect Based on the Hertzian Contact Stress Distribution , 2018 .

[8]  Guo-Hua Feng,et al.  Investigation of ball screw preload variation based on dynamic modeling of a preload adjustable feed-drive system and spectrum analysis of ball-nuts sensed vibration signals , 2012 .

[9]  Jun Zhang,et al.  Research on the dynamics of ball screw feed system with high acceleration , 2016 .

[10]  Akira Rinoshika,et al.  Effect of Stiffness of Rolling Joints on the Dynamic Characteristic of Ball Screw Feed Systems in a Milling Machine , 2015 .

[11]  Guangming Sun,et al.  Stiffness matching method for the ball screw feed drive system of machine tools , 2020 .

[12]  Rong Zeng,et al.  Two-Degree-Of-Freedom Dynamic Model-Based Terminal Sliding Mode Control with Observer for Dual-Driving Feed Stage , 2018, Symmetry.

[13]  Guofu Yin,et al.  Dynamic characteristics optimization for a whole vertical machining center based on the configuration of joint stiffness , 2015 .

[14]  Christian Brecher,et al.  Machine tool feed drives , 2011 .

[15]  Yongjiang Chen,et al.  Nonlinear Dynamics Behaviors of Ball Screws with Preload Considered , 2012 .

[16]  Jian Wang,et al.  Axial dynamic characteristic parameters identification of rolling joints in a ball screw feed drive system , 2016 .

[17]  He Ling,et al.  Cross-coupled fuzzy logic sliding mode control of dual-driving feed system , 2018 .

[18]  Rogelio L. Hecker,et al.  Modeling and vibration mode analysis of a ball screw drive , 2012 .

[19]  Liang Dong,et al.  HYBRID MODELING AND ANALYSIS OF STRUCTURAL DYNAMIC OF A BALL SCREW FEED DRIVE SYSTEM , 2013 .

[20]  Chen Yu,et al.  Identification and compensation of friction for a novel two-axis differential micro-feed system , 2018, Mechanical Systems and Signal Processing.

[21]  Subhas Chandra Mondal,et al.  Modeling and optimization of surface roughness in keyway milling using ANN, genetic algorithm, and particle swarm optimization , 2017, The International Journal of Advanced Manufacturing Technology.

[22]  Guenter Pritschow,et al.  Ball screw drives with enhanced bandwidth by modification of the axial bearing , 2013 .

[23]  Fuxin Du,et al.  A review on vibration analysis and control of machine tool feed drive systems , 2020 .

[24]  Jun Zhang,et al.  Dynamic modeling and analysis for gantry-type machine tools considering the effect of axis coupling force on the slider–guide joints’ stiffness , 2016 .

[25]  Jun Zhang,et al.  Dynamic modeling and analysis of the high-speed ball screw feed system , 2015 .

[26]  Peiqing Ye,et al.  Three-dimensional modeling for predicting the vibration modes of twin ball screw driving table , 2014 .