Application of Iterative Learning Contouring Control to a Machine Tool Feed Drive System with Linear Motors

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.

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A thermal model of the ball screw feed drive system for a machine tool

Proceedings of the Institution of Mechanical Engineers Part C Journal of Mechanical Engineering Science ◽

10.1243/09544062jmes2148 ◽

2010 ◽

Vol 1 (-1) ◽

pp. 1-8 ◽

Cited By ~ 1

Author(s):

X Min ◽

S Jiang

Keyword(s):

Machine Tool ◽

Thermal Model ◽

Drive System ◽

Ball Screw ◽

Feed Drive ◽

Feed Drive System ◽

Screw Feed

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The Design of Feed Drive System of Economical CNC Milling Machine

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.701-702.780 ◽

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.

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