CNC系统体系结构开发的毕业设计.docVIP

摘 要 随着数控加工技术的发展和复杂曲面零件的广泛应用，数控系统被广泛应用于机械、电子、计算机、自动控制、检测等各个领域，开放式数控系统的研究目的是要建立一种新型的模块化、可重构、可扩充的控制系统机构，以增强数控系统的功能柔性，能够快速而经济地响应新的加工需求。 本文围绕着开放式CNC （Computer Numerical Control）系统设计中的若干关键技术，从体系结构分析、系统硬件结构地开放化设计等方面进行了研究。全文主要研究工作如下： 系统研究了基于PC的开放式CNC系统的关键性基础问题:CNC体系结构的概念及其对系统性能和发展的重要性，现有CNC系统体系结构的特点和缺陷，CNC系统体系结构开放的必要性、开放的理念和目标以及实现开发的途径。在需求分析的基础上，谈论了开放式CNC体系结构的设计原则和概念模型。 对开放体系结构CNC系统的开放特性需求，研究讨论了基于CAN总线的模块化体系结构以及各功能模块。 关键词: 数控系统 开放体系结构 CAN总线 PCI总线 Abstract With the development and broad used of CNC technology and complex curves, openCNC system base on PC has been used in machine, electron, computer, autocontrol, inspectevice etc. The research purpose of open CNC system is to build a modular, reconfigurableand expandable architecture of CNC systems to improve the systems flexibility, and enablethe systems to be re-developed. As a result, CNC systems can be responsive to the marketquickly and economically. In this thesis, some key aspects and technology on the design of openarchitecture CNC systems are researched, including system architecture analysis. openhardware structure design, driver developing, curve interpolation technology in motioncontrol, etc. Following are the main works and results: thefeatures and drawbacks of current architecture, and why and how for CNC systems to be open.Some principles and a concept model for open architecture systems are proposed which canbe used as the guidance of detailed design of the software and hardware. Design methods of the modular system and its function modules base on CAN-busand PCI-bus are presented in details. Keyword: CNC Open-architecture CAN-bus PCI-bus 目 录 前言 ………………………………………………………………6 1.数控技术产生的背景 ……………………………………………6 2.开放式数控系统结构的产生背景 ………………………………6 3.本课题的来源和研究意义 ………………………………………7 1.数控系统的发展 ………………………………………………8 1.1 数控系统的发展历史 ……………………………………… 9 1.2 开放式数控系统的研究 …………………………………… 9 1.2.1开放式数控系统的研究发展 ………………………… 9 1.2.2国产数控系统技术的发展 …………………………… 12 2.开放式数控系统的理论研究 ……………………………… 12 2.