电火花机床机械结构设计.docVIP

目 录 中文摘要 ·································································1 英文摘要 ·································································2 1.1 题研究的目的和意义················································3 1.2 本设计国内外研究历史与现状 ·······································4 1.3 本设计拟解决的关键问题和研究方法··································5 二、 电火花成型机床总体结构设计 ·····································8 2.1 电火花成型机的结构 形式···········································8 2.2 电火花成型机结构设计···············································9 三、 主轴系统设计······················································13 3.2 电机的选择 ·······················································14 3.3 同步齿形带设计 ···················································19 3.4 滚珠丝杆副的设计··················································22 3.5 直线导轨的设计 ···················································27 四、工作台设计 ························································29 五、十字滑座设计······················································34 六、电极夹头设计·······················································37 七、机床润滑系统设计 ·················································40 八、工作液循环装置结构设计 ··········································42 参考文献·······························································.45 谢辞 ···································································46 附录·····································································47 翻译··························································52  摘 要： 介绍了电火花成型机床的加工原理、特点及其发展历程：它是通过脉冲直流电源不断产生火花放电来去除工件材料，且在工件与工具之间有绝缘液体介质。 分析并设计了电火花成型机床结构系统。机床总体布局为单柱立式，主轴采用步进电机拖动滚珠丝杆完成升降，利用步进电机多级可变细分技术，实现伺服系统的变频、变步距双重伺服调节，提高系统的跟踪能力和稳定性。进给系统采用滚珠丝杆和十字滑座实现工作台的横向、纵向移动，运动平稳。 电火花成形加工要在加工精度、加工效率、加工范围等方面取得重大突破，一个重要的发展方向就是对机床成形运动方式的创新和多样化。 关键词：电火花； 主轴； 滚珠丝杆； 十字滑座； V型导轨 Abstract： The processing principles, characteristics and development process of the EDM machine by author is introdunced in this paper. It removes material with repetitive spark discharges from a pulsating DC power supply, with a dielectric f