Condition monitoring of the feed drive system of a machine tool based on long-term operational modal analysis

2019 ◽  
Vol 146 ◽  
pp. 103454 ◽  
Author(s):  
Pingjia Jia ◽  
Youmin Rong ◽  
Yu Huang
Keyword(s):  
Machine Tool ◽  
Modal Analysis ◽  
Condition Monitoring ◽  
Operational Modal Analysis ◽  
Drive System ◽  
Feed Drive ◽  
Feed Drive System

A Study on the Feed Rate Optimization of a Ball Screw Feed Drive System for Minimum Vibrations

2005 ◽  
Author(s):  
Young H. Choi ◽  
Jin H. Hong ◽  
Sung H. Jang
Keyword(s):  
Machine Tool ◽  
Feed Rate ◽  
Drive System ◽  
Ball Screw ◽  
Feed Drive ◽  
Rate Optimization ◽  
Feed Rate Optimization ◽  
Feed Drive System ◽  
Screw Feed ◽  
Acceleration Profile

In order to prevent machine tool feed slide system from transient vibrations during operation, machine tool designers usually adopt some typical design solutions; box-in-box typed feed slides, optimizing moving body for minimum weight and dynamic compliance, and so on. Despite all efforts for optimizing design, a feed drive system may experience severe transient vibrations during high-speed operation if its feed-rate control is not suitable. A rough feed-rate curve having discontinuity in its acceleration profile causes serious vibrations in the feed slides system. This paper presents a feed-rate optimization of a ball screw driven machine tool feed slide system for its minimum vibrations. A ball screw feed drive system was mathematically modeled as a 6-degree-of-freedom lumped parameter model. Then, a feed-rate optimization of the system was carried out for minimum vibrations. The main idea of the feed-rate optimization is to find out the most appropriate smooth acceleration profile having jerk continuity. A genetic algorithm, G.A., was used in this feed rate optimization.

The Design of Feed Drive System of Economical CNC Milling Machine

2014 ◽  
Vol 701-702 ◽  
pp. 780-783
Author(s):  
Xiao Jing Yang ◽  
Jia Xin Wang
Keyword(s):  
Machine Tool ◽  
Drive System ◽  
Ball Screw ◽  
Milling Machine ◽  
Cnc Milling ◽  
Transmission Scheme ◽  
Feed Drive ◽  
Cnc Milling Machine ◽  
Functional Components ◽  
Feed Drive System

The feed drive system is important functional components which effects on precision and efficiency of transmission and cost of CNC milling machine tools. So the designe of the feed drive system of economical CNC milling machine tool is researched. Firtsly the general design scheme which includes the transmission scheme and basic parameters of CNC milling machine tool is determined. Then according to the milling force calculated during mill processing, linear rolling guide, ball screw and stepping motor of X axis and Y axis of feed drive system are respectively calculated, selected and checked in detail. Using the Solid works software for 3D modeling and assembly of mechanical parts of feed drive system, By the scheme comparison, selecting the CNC system of Huazhong century star HNC-21 and accomplishing the electrical connection of CNC system.The feed drive system of economical CNC milling machine in the desing is high performance and low cost,and meet accuracy requirement.

Superconducting EMS feed drive system of NC machine tool

2014 ◽  
Vol 74 (5-8) ◽  
pp. 1053-1060 ◽  
Author(s):  
Wenxue Jiang ◽  
Kai Zhou ◽  
Jiangwei Lv ◽  
Yanwu Men
Keyword(s):  
Machine Tool ◽  
Drive System ◽  
Nc Machine Tool ◽  
Feed Drive ◽  
Nc Machine ◽  
Feed Drive System

Rigid-Flexible Coupling-Based CNC Machine Tool Feed Drive System Co-Simulation

2013 ◽  
Vol 694-697 ◽  
pp. 115-119
Author(s):  
Da Xing Zhao ◽  
Yong Yang ◽  
Wan Xu ◽  
Guo Long Ding ◽  
Ling Peng
Keyword(s):  
Machine Tool ◽  
High Speed ◽  
Drive System ◽  
Cnc Machining ◽  
Ball Screw ◽  
Machining Accuracy ◽  
Operating Characteristics ◽  
Flexible Coupling ◽  
Feed Drive ◽  
Feed Drive System

High-speed high-precision CNC processing technology plays a very important position in the CNC machining industry,machine disturbance,however,an important factor affecting the machining accuracy,the ball screw feed drive as an important part of the machine directly affects the operating characteristics of the machine.Ball screw drive system,Solidworks,Ansys,Adams the establishment of machine tool,rigid-flexible couping the multibody dynamics model,the dynamic characteristic curve of the machine.Compared with the rigid body model simulation results verify the feasibility of rigid-flexible coupling modeling method,optimized to provide the basis of the structural design of the machine components.

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