主动齿轮轴机械加工工艺规程及铣削专用夹具设计

零件图

摘要
本次设计的是主动齿轮轴的加工工艺及铣削加工键槽的夹具设计，主要采用铣床铣削加工来的完成工艺加工。在数控加工中利用数控机床来加工，使得产品加工的质量能够保持一致性，保证主动齿轮轴零件的加工精度和主动齿轮轴零件效率，在这些方面均比普通铣床加工高出很多有点，尤其是针对一些轮廓轮廓不规则的零件的加工、在零件上有复杂的曲线或不规则的曲面、需要要到多工艺复合，工序加工和零件的高精度要求的产品零件的加工时，最突出的优点是传统机床，在加工的时候所无法比达到这一的要求。
本文通过主动齿轮轴零件的分析，主动齿轮轴零件的结构特点和主动齿轮轴零件加工技术图纸要求，完成设计制定了一套较合理的主动齿轮轴零件铣槽夹具设计，从而为保证主动齿轮轴零件加工精度要求，将提供一种主动齿轮轴零件经济实用的工艺加工装备设计，使得主动齿轮轴零件的加工具有一定的实用高效率的生产价值。

关键词：齿轮轴、夹具、工艺、铣削

Abstract
This design is the processing technology of the driving gear shaft and the fixture design for milling the keyway, mainly using the milling machine to complete the processing. In NC machining, the use of CNC machine tools to process, so that the quality of product processing can maintain consistency, ensure the processing accuracy of the driving gear shaft parts and the efficiency of the driving gear shaft parts, in these aspects are higher than the ordinary milling machine processing, especially for some partswith irregular contour contour, there are complex curves or irregular curved surfaces on the parts The most outstanding advantage of the traditional machine tool is that it can not meet the requirements of multi process combination, process processing and high-precision parts.
In this paper, through the analysis of the driving gear shaft parts, the structural characteristics of the driving gear shaft parts and the processing technology drawing requirements of the driving gear shaft parts, the design is completed, and a set of reasonable groove milling fixture design for the driving gear shaft parts is formulated. Thus, in order to ensure the machining accuracy requirements of the driving gear shaft parts, an economic and practical process equipment design for the driving gear shaft partswill be provided, The machining of the driving gear shaft parts has a certain practical and efficient productionvalue.

Keywords: gear shaft, fixture, process, milling

目录

1零件的分析1
1.1零件的作用1
1.2零件的工艺分析1
1.3工艺设计的要求3
2主动齿轮轴的工艺规程设计5
2.1确定生产类型5
2.2选择定位基准7
2.2.1粗基准的选择8
2.2.2精基准的选择8
2.3制定工艺路线8
2.4选择加工设备和工艺装备10
2.5机械加工余量、工序尺寸及毛坯尺寸的确定11
3切削用量及工时的计算13
3.1车削加工工时定额13
3.2铣削加工工时定额的计算15
1.选择刀具15
2.决定铣削用量15
3.3钻销加工工时定额计算16
4铣削专用夹具设计18
4.1问题的提出18
4.2夹具的误差分析19
4.3、夹具总体设计21
总结25
参考文献26

主动齿轮轴夹具装配图

毛坯图

工序卡

夹紧结构

工序图

过程卡

夹具体

装配图