分度头主轴加工工艺分析

《分度头主轴加工工艺分析》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、分度头主轴加工工艺分析周城西南科技大学萧山教学点机电一体化技术专业12秋级高起专【摘要】本文以零件图的绘制流程，加工工艺的制定，夹具设计等方面分析，并结合数控加工的特点，分别进行工艺方案分析，机床的选择，刀具加工路线的确定，数控程序的编制，最终形成可以指导生产的工艺文件。在整个工艺过程的设计过程中，要通过分析，确定最佳的工艺方案，使得零件的加工成本最低，合理的选用定位夹紧方式，使得零件加工方便、定位精准、刚性好，合理选用刀具和切削参数，使得零件的加工在保证零件精度的情况下，加工效率最高、刀具消耗最低。最终形成的工艺文件要完整，并能指导实际生产。【关

2、键词】零件绘制加工工艺零件选择夹具设计第16页共16页目录一、零件图的测绘···················································31.测绘的要求和方法············································32.测绘的步骤··················································3二、零件加工工艺规程制定···········································31．零件分析·············

3、········································31.1加工内容、生产纲领、生产类型等····························31.2零件结构工艺性分析········································42．毛坯的种类及特点··············································43.工艺路线的制定·················································54.工序余量及工序尺寸的确定第16页共1

4、6页·······································65．基准的选择····················································65.1基准及其分类··············································65.2定位基准的选择············································76．机床的选择···················································117．刀具

5、的选择及要求·············································11三、夹具的设计····················································111．定位夹紧机构的基本要求·······································122．夹具设计思路·················································123．定位与夹紧常用方式·······································

6、·····13第16页共16页四、参考文献·······················································14一、零件图的测绘1.测绘的要求和方法：①材料及毛坯要求。 ②表面粗糙度要求。 ③尺寸公差、形状和位置公差。 ④表面处理、镀、修饰、喷漆等要求。 ⑤检测、验收、包装等要求。2.测绘步骤①了解和分析测绘对象 首先应了解零件的名称、用途、材料以及它在机器（或部件）中的位置和作用；然后对该零件进行结构分析和制造方法的大致分析。 ②确定视图表达方案 先根据显示零件形状特征的原则，按零件的加工位置或工作位置

7、确定主视图；再按零件的内外结构特点选用必要的其它视图和剖视、剖面等表达方法。 ③绘制零件草图 ④对画好的零件草图进行复核后，再画零件图二、零件加工工艺规程制定1．零件分析1.1加工内容生产纲领、生产类型等第16页共16页一般有零件的加工工艺路线、各工序基本加工内容、切削用量、工时定额及采用的机床和工艺装备（刀具、夹具、量具、模具）等。生产纲领的大小对生产组织和零件加工工艺过程起着重要的作用，它决定了各工序所需专业化和自动化的程度，决定了所应选用的工艺方法和工艺装备。根据教材①中生产纲领与生产类型及产品大小和复杂程度的关系，确定其生产类型。1.2零件

8、结构工艺性分析①结构工艺性的概念零件的结构工艺性是指所设计的零件在满足使用要求的前提下，制造的可行性和经济性，它是评价零件