装配图-A0
本次设计首先，通过对电火花线切割机床中走丝系统结构及原理进行分析，在此分析基础上提出了总体结构方案；接着，对主要技术参数进行了计算选择；然后，对各主要零部件进行了设计与校核；最后，通过AutoCAD制图软件绘制了走丝系统装配图及主要零部件图。通过本次设计，巩固了所学专业知识，如：机械原理、机械设计、材料力学、公差与互换性理论、机械制图等；掌握了普通机械产品的设计方法并能够熟练使用AutoCAD制图软件，对今后的工作于生活具有极大意义。
关键词：线切割，走丝系统，储丝筒，同步带
Abstract
With the development of the mold industry, the proportion of precision molds manufacturing is getting bigger, the urgent requirement WEDM not only to speed quickly, and have comparatively good surface quality and high precision. The design focused on WEDM go wire system designed to go wire system mainly consists of the package and make dual storage reservoir wire drum rotation two motor.
The design is first, through the WEDM go wire system structure and principle of analysis presented in this analysis, based on the overall structure of the program; then, the main technical parameters were calculated selection; then, for each major zero components design and verification; and finally, through the AutoCAD drawing software to draw a walk wire system assembly drawings and major components Fig.
Through this design, the consolidation of the university is the professional knowledge, such as: mechanical principles, mechanical design, mechanics of materials, tolerances and interchangeability theory, mechanical drawing and the like; mastered the design of general machinery products and be able to skillfully use AutoCAD mapping software on the future work of great significance in life.
Keywords: Line cutting, Wire walking system, Storage wire tube, Belt
第一章绪论
1.1电火花切割机的概念及分类
1.1.1电火花切割机的概念
1960年，苏联首先研制出靠模线切割机床。中国1961年也研制出类似的机床。早期的线切割机床采用电气靠模控制切割轨迹。当时由于切割速度低，制造靠模比较困难，仅用于在电子工业中加工其他加工方法难以解决的窄缝等。1966年，中国研制成功采用乳化液和快速走丝机构的高速走丝线切割机床，并相继采用了数字控制和光电跟踪控制技术。此后，随着脉冲电源和数字控制技术的不断发展以及多次切割工艺的应用，大大提高了切割速度和加工精度。工件安装在工作台上，工作台通常由X轴和Y轴电动机驱动。工具电极为直径0.02～0.3毫米的金属丝，由走丝系统带动电极丝沿其轴向移动。走丝方式有两种：①高速走丝，速度为9～10米/秒，采用钼丝极丝，可循环反复使用；②低速走丝，速度小10米/分，电极丝采用铜丝，只使用一次。脉冲电源加在工件与电极丝之间，一般工件接正极，电极丝接负极。工件与电极丝之间用喷嘴喷入工作液(乳化液、去离子水等)。控制系统根据预先输入的工作程序输出相应的信息，使工作台作相应的移动，工件与电极丝靠近。
拨丝滑块-A3
储丝筒-A1
联轴器-A4
丝杠-A3
同步带轮-A4
主轴-A3
