典型零件的数字化设计及加工工艺.doc

典型零件的数字化设计及加工工艺 摘要：数字化设计就是利用数控机床对典型零件进行分析，确定其加工工艺、加工方法、路线、工艺参数。加工这个零件用到的刀具，以方便选择刀具，预备刀具，计算相邻轮廓交点坐标，以及怎么装夹，所用的夹具，然后手工编程，程序校验，校验无误，最后进行加工，制造出精度较高的合格零件。介绍典型零件加工工艺及编程，深入地了解加工中出现的各种问题，找到解决的办法，能在以后的工作中出现类似的问题时能及时解决。通过本次设计也使自己了解在哪方面有欠缺，以后能在欠缺的地方能多用心的学习，当然也有自己掌握比较熟练的方面，能更好的了解自己的长处，在以后的实践中能更好运用。 关键词：机床,数控编程,工艺分析 A typical digital design and processing of parts Abstract: Digital design is the use of CNC machine tools for typical parts for analysis to determine its processing technology, processing methods, route, process parameters. This part is used in the processing tool, select the tool to facilitate preparatory tool, contour adjacent intersection coordinates calculation, and how clamping, the use of the fixture, then manual programming, program verification, calibration is correct, the final processing, manufacture Qualified high precision parts. Describes the typical parts processing technology and programming, allows us to further consolidate and strengthen the knowledge learned, the knowledge learned from theory into practice. Can be solved in-depth understanding of the processing of various problems, to find a solution, similar problems can arise in the future when the work. Through this design also makes you understand what is lacking in respect, to be able to be able to study more carefully at the lack of places, of course, there are more skilled in terms of their grasp, to better understand their own strengths, to practice in the future better use.?? Keywords: Machine tools, CNC programming, process analysis  目 录 1前言 1 2数控机床的概况及认知 2 2.1机床的简介 2 2.2研究数控机床的目的及意义 2 2.3机床的组成及工作原理 2 2.4数控机床的分类 3 2.4.1按主轴的位置分类 4 2.4.2 控机床按构造上分类 4 2.5数控机床的主要功能和加工特点 5 2.5.1数控机床的加工特点： 6 3数控加工的准备阶段 7 3.1数控加工刀具的要求及种类 7 3.1.1常用铣刀种类? 7 3.2确定定位基准 8 3.2.1粗基准的选择 8 3.2.2精基准的选择 9 3.3装夹方式和夹具的选择 10 4 数控机床实例加工 12 4.1零件图纸 12 4.2材料的选择及对刀 14 4.3零件的加工工艺性分析 15 4.3.1工艺设计 16 4.4编制加工工艺过程 16 4.4.1编制数控刀具及加工工艺卡 17 4.5绘制二维/三维图 20 4.5.1对三维零件进行实体仿真制作模型 23 4.6CAXA程序导出 25 4.7