偏心工件加工及夹具设计.doc

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摘要
轴类零件是机器中经常遇到的典型零件之一。它在机械中主要用于支承齿轮、凸轮以及连杆等传动件，按照结构类型不同，轴可以分为很多种如：阶梯轴、锥度心轴、空心轴、凸轮轴等，轴的长径比小于5的称为短轴，大于20的称为细长轴，大多数轴介于两者之间，轴用轴承支承，与轴承配合的轴段称为轴颈。轴颈是轴的装配基准，它们的精度和表面质量一般要求较高。根据零件的结构类型、及其功能，运用定位夹紧的知识从而完成了夹具设计。
关键词：轴类零件、轴颈、夹具、工艺分析

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目录
目录………………………………………………………1
偏心工件的加工
一.问题的引出...........................................................................................................2
二、垫片厚度与垫片形状的选择.........................................................................3
三、偏心工件的车削...............................................................................................4
四、加工偏心工件时容易产生的问题及应注意的事项.......................................5.6
五、结语..................................................................................................................6
偏心工件夹具设计
一.偏心夹具的设计思路..............................................7
二.偏心夹具结构分析...............................................8
三.线切割找正和加工..........................................9.10.11
四.锁紧装置结构特点...............................................12
五.夹具的应用...............................................13

结束语....................................................................................................................14
致谢词........................................................................................