半轴零件的机械加工工艺及夹具设计.doc

半轴零件的机械加工工艺及夹具设计


摘要
半轴是汽车的轴类中承受扭矩最大的零件，它是差速器和驱动轮之间传递扭矩的实心轴，其内端一般通过花键与半轴齿轮连接，外端与轮毂连接，该零件在机械设备中具有传动性，在进行半轴的工艺和工装设计时，首先对半轴的工艺性进行了详细的分析，设计出了加工的工艺过程，根据加工要求设计专用夹具设计，一付是用来车削半轴的外圆，一付是用来钻削半轴圆盘上均匀分布的小孔，在设计中注意的夹具的经济性和使用性，尽量降低加工时的成本，减少工人的劳动强度，除此还进行了组合量具的设计，用来检查6个均匀分布的小孔的位置度公差。
关键词：工艺工装设计   夹具设计    组合量具设计

Abstract
    The half stalk is in automotive stalk the acceptance twist the biggest spare parts of sqire , it is bad soon machine and drive the round of delivers to twist the  of solid stalk, it inside carry generally pass to spend the key and half stalk wheel gears to connect, carry outside with a conjunction, that spare parts is in the machine equipments have to spread to move sex, at carry on the half stalk of craft and work equip to account, the half axial craft carried on the detailed analysis first, designing processed craft process, according to process to request to design the appropriation tongs design, a pay is to use to come to car to pare the outside circle of the half stalk, on pay is use to drill to pare a dish of the half stalk up even distribute of eyelet, in the design the economy of the advertent tongs and usage, as far as possible lower to process of cost, reduce the worker of labor strength, in addition to this still carried on the design that the combination quantity have, use to check 6 even distribute of a business trip of position of the eyelet.
Key Words：The craft work packs the design   The tongs design    Combine the quantity has the design

 
目 录
摘要……………………………………………………………………………………1
英文摘要………………………………………………………………………………1
1  引言………………………………………………………………………………6
2  零件分析…………………………………………………………………………6
2.1零件的生产纲领及生产类型………………………………………………6
2.2零件的作用…………………………………………………………………6
2.3零件的工艺分析……………………………………………………………6
3  工艺规程制造的形式……………………………………………………………7
3.1确定毛坯制造形式…………………………………………………………7
3.2定位基准的选择……………………………………………………………7
3.2.1粗基准的选择………………………………………………………7
3.2.2精基准的选择………………………………………………………7
3.3零件表面加工方法的选择…………………………………………………7
3.4制订工艺路线………………………………………………………………8
3.5机械加工余量及毛坯尺寸的确定………………………………………9
4  选择加工设备……………………………………………………………………12
4.1 选择机床…………………………………………………………………12
4.2选择夹具…………………………………………………………………12
4.3选择刀具…………………………………………………………………12
4.4选用量具…………………………………………………………………12
5  确定切削用量和基本时间………………………………………………………13
5.1 工序00铣削用量及基本时间的确定…………………………………13
5.2 工序10切削用量及基本时间的确定……………………………………14
5.3 工序30切削用量及基本时间的确定……………………………………19
5.4 工序40铣削用量及基本时间的确定……………………………………21
5.5 工序50削用量及基本时间的确定………………………………………22
5.6 工序60钻削与垂直轴线的的孔………………………………………24
5.7 工序70攻螺纹M6…………………………………………………………26
5.8 工序110磨削外圆表面及左端面………………………………………26
6夹具设计…………………………………………………………………………27
6.1 车削顶尖夹具的设计……………………………………………………27
6.2 绘制夹具总体图…………………………………………………………29
6.3 钻孔专用夹具的设计……………………………………………………29
6.4 绘制夹具总体图…………………………………………………………31
7位置量规设计 ……………………………………………………………………31
小结…………………………………………………………………………………33
参考文献……………………………………………………………………………34
致谢…………………………………………………………………………………35