叉杆的铣R23两端面保证12尺寸夹具设计及加工工艺装备规程含4张CAD图+说明书

铣R23的两端面夹具装配图

叉杆加工工艺及夹具设计

摘要

本设计是基于叉杆零件的加工工艺规程及一些工序的专用夹具设计。叉杆零件的主要加工表面是平面及孔系。一般来说，保证平面的加工精度要比保证孔系的加工精度容易。因此，本设计遵循先面后孔的原则。并将孔与平面的加工明确划分成粗加工和精加工阶段以保证孔系加工精度。主要加工工序安排是先以支承孔系定位加工出顶平面，再以顶平面与支承孔系定位加工出工艺孔。在后续工序中除个别工序外均用顶平面和工艺孔定位加工其他孔系与平面。支承孔系的加工采用的是坐标法镗孔。整个加工过程均选用通用。夹具选用专用夹具，夹紧方式多选用气动夹紧，夹紧可靠，机构可以不必自锁，因此生产效率较高，适用于大批量、流水线上加工，能够满足设计要求。
关键词：叉杆类零件；工艺；夹具；
Machining technology and fixture design of fork bar parts
Abstract
This design is the special fixture for machining technology for the chemical pipeline parts and process design based on. The main processing surface chemical pipeline parts is the plane and a series of hole. In general, ensure the machining accuracy of plane than to ensure the accuracy of the processing easily. Therefore, the design follows the surface after the first hole principle. And the hole and the plane processing clearly divided into roughing and finishing stages to ensure machining precision. The main process of machining technology is first to support hole positioning processing the top plane, and then the top plane and the series of supporting hole location hole processing technology. In addition to the follow-up processes are individual processes with the top plane positioning technology and other processing Kong and plane. Processing support holes using the coordinate boring. The whole process selection of general. The special fixture fixture, clamping means more choice of pneumatic clamping, clamping reliable, agencies can not self-locking, therefore the production efficiency is high, suitable for large batch, line processing, can meet the design requirements.
Keywords: chemical pipe parts; technology; fixture;
目录
第1章机械加工工艺规程设计1
1.1零件的分析1
1.1.1零件的作用1
1.1.2零件的工艺分析1
1.2叉杆加工的主要问题和工艺过程设计所应采取的相应措施2
1.2.1孔和平面的加工顺序2
1.2.2孔系加工方案选择2
1.3叉杆加工定位基准的选择3
1.3.1粗基准的选择3
1.3.2精基准的选择3
1.4叉杆加工主要工序安排3
1.5机械加工余量、工序尺寸及毛坯尺寸的确定10
1.6选择加工设备和工艺装备11
1.6.1机床选用11
1.6.2选择刀具11
1.6.3选择量具11
1.7机械加工余量、工序尺寸及毛坯尺寸的确定11
1.8确定切削用量及基本工时（机动时间） 13
第2章铣R23的2端面保证12尺寸夹具设计18
2.1研究原始质料18
2.2定位基准的选择18
2.3切削力及夹紧分析计算18
2.4误差分析与计算20
2.5零、部件的设计与选用21
2.5.1定位销选用21
2.5.2定向键与对刀装置设计21
2.6夹具设计及操作的简要说明22
总结24
参考文献25
致谢26

铣夹具体

A3零件图

夹具设计部分

字数统计

工序卡

毛坯图

设计所包含文件

加工过程卡