气门摇杆轴支座机械加工工艺规程及钻Φ20孔夹具设计

T92气门摇杆支座零件图

摘要
本文对气门摇杆轴支座的作用和工艺性进行了分析，详细介绍了气门摇杆轴支座加工工艺过程的制定:1、气门摇杆轴支座定位基准的选择，2、气门摇杆轴支座制定加工工艺路线，3、气门摇杆轴支座选择加工设备及气门摇杆轴支座工艺装备，4、确定气门摇杆轴支座切削用量及气门摇杆轴支座加工基本工时。然后介绍气门摇杆轴支座加工夹具的设计及气门摇杆轴支座计算，包括气门摇杆轴支座本工序的加工方式分析，再对确定夹具加工类型，租后确定加工方案和选择气门摇杆轴支座定位元件确定夹紧方案，确定加工对刀装置最终气门摇杆轴支座设计专用夹具。

关键词：气门摇杆轴支座、加工工艺、专用夹具

Abstract

This paper analyses the function and technicality of the rocker arm, and introduces in detail the formulation of the process of the rocker arm processing: 1. the selection of the positioning datum of the rocker arm; 2. the formulation of the process route of the rocker arm; 3. the selection of the processing equipment and the process equipment of the rocker arm; 4. the determination of the cutting parameters of the rocker arm and the basicworking hours of the rocker arm processing. Then it introduces the design and calculation of the rocker arm processing fixture, including the analysis of the processing mode of the rocker arm in this process. Then it determines the processing type of the fixture, determines the processing scheme after renting and determines the clamping scheme by selecting the rocker arm positioning element, and determines the special fixture for the final rocker arm design of the tool setting device.

Keywords: rocker arm, processing technology, special fixture

目录
摘要II
第一章机械加工工艺规程设计1
1.1气门摇杆轴支座的分析1
1.1.1气门摇杆轴支座的作用1
1.1.2气门摇杆轴支座的性能分析1
1.1.3气门摇杆轴支座的材料性能1
1.2气门摇杆轴支座零件的工艺性分析2
1.3气门摇杆轴支座加工方法的选择2
1.4气门摇杆轴支座工序路线3
1.5确定加工余量及毛坯尺寸4
第二章确定切削用量和加工时间6
第三章气门摇杆轴支座专用夹具的设计14
3.1气门摇杆轴支座夹具结构设计14
3．1．1确定定位方案，选择定位元件14
3．1.2夹具设计的有关计算14
3.2计算定位误差——目的是分析定位方案的可行性15
3.3夹具结构设计及操作简要说明15
3.4夹具结构设计及操作简要说明15
设计总结16
参考文献17

夹具结构建模

毛坯图

钻孔20夹具结构