采用直线电机驱动的高速数控切割机的发展[外文翻译].rar

采用直线电机驱动的高速数控切割机的发展[外文翻译]

摘要
数控机床传统的做法是使用旋转驱动马达和滚珠丝杠的组合来实现切削运动。直线电机在这种方法之上给于几点优势，其中包括低惯性，更好的性能，更高的准确性和复杂性降低。 这篇文章描述了如何以低成本，高速的直线电机驱动的切割机对复合材料进行加工试验。 机床结构是一个龙门式X/ Y方向运动系统，对其中一个高速电动主轴进行启动。两个方向均与一个独立的CNC控制器连接，微机端口以C++为接口语言。该机器具备一般功能的数控路由器，并且其切削速度能超过40米/分钟及主轴转速30000转/分钟。该机床已被用来对刀具磨损监测进行测试，并在大学里作为正在进行的研究项目之一。© 2004年Elsevier B.V。版权所有。
1.介绍
“高速加工”（HSM）这个专业术语多年来用来形容在高转速下端铣小直径工具。用什么标准定义高速加工各有不同[1]。除了转速， 像周边切割速度，材料去除速度和进给速度等各标准，可用于定义HSM。此外，[2,3]切割操作的类型和使用的刀具和工件材料对可以达到的速度加以限制。
不过，对于传统的加工工艺似乎存在一个共识，（高速加工）即主轴转速通常达到10000到100,0000转/分，[4-6]尽管允许在一定的铣削作业[7]中速度低至5000转/分。
高转速，通常伴随着工作台的高进给率，轮廓加工一般发生的范围在15-60米/分[1]。

Development of a high-speed CNC cutting machine using linear motors
Seamus Gordon 1, Michael T. Hillery ∗
Department of Manufacturing and Operations Engineering, University of Limerick, Limerick, Ireland  Received 18 April 2001; received in revised form 6 December 2001; accepted 6 August 2003
Abstract
The traditional approach to construct CNC machine tools has been to use rotary drive motors and ballscrews to achieve table motion. Linear motors offer several advantages over this approach, including low inertia, better performance, increased accuracy and reduced complexity.This article describes how a low cost, high-speed cutting machine was built using linear motors in order to conduct machining tests on a composite material. The machine configuration was a gantry type X/Y motion system on which a high-speed electrospindle was mounted.Both were interfaced with a standalone CNC controller for which a MicrosoftWindows based interface was written in C++. The machine has the usual functionality of a CNC router and is capable of table speeds of over 40 m/min and a spindle speed of 30,000 rev/min. The machine is used to carry out tests on tool wear monitoring as part of an ongoing research project in the university.© 2004 Elsevier B.V. All rights reserved.
Keywords: High speed machining; CNC cutting machine; Linear motors; C++