电火花机床机械结构机械CAD图纸设计.doc

充值下载即送 CAD 图纸, QQ 36396305 1 目录中文摘要·································································1 英文摘要·································································2 一、引言································································3 题研究的目的和意义················································3 本设计国内外研究历史与现状·······································4 本设计拟解决的关键问题和研究方法··································5 电火花成型加工特点和适用范围······································5 二、电火花成型机床总体结构设计·····································8 电火花成型机的结构形式···········································8 电火花成型机结构设计··············································· 9 三、主轴系统设计······················································ 主轴系统设计方案·················································· 13 电机的选择·······················································14 同步齿形带设计···················································19 滚珠丝杆副的设计·················································· 22 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 充值下载即送 CAD 图纸, QQ 36396305 2 充值下载即送 CAD 图纸, QQ 36396305 3 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。本课题的研究,是对电火花成型加工发展方向的一次有