三维零件图
摘要
连接座零件加工工艺及钻床夹具设计是包括零件加工的工艺设计、工序设计以及专用夹具的设计三部分。在工艺设计中要首先对零件进行分析,了解零件的工艺再设计出毛坯的结构,并选择好零件的加工基准,设计出零件的工艺路线;接着对零件各个工步的工序进行尺寸计算,关键是决定出各个工序的工艺装备及切削用量;然后进行专用夹具的设计,选择设计出夹具的各个组成部件,如定位元件、夹紧元件、引导元件、夹具体与机床的连接部件以及其它部件;计算出夹具定位时产生的定位误差,分析夹具结构的合理性与不足之处,并在以后设计中注意改进。
关键词:工艺,工序,切削用量,夹紧,定位,误差
Abstract
Parts and fittings drilling fixture design process includes parts machining process design, process design, and special fixture design three parts. In the process of designing the parts to be the first analysis to understand the parts of the process re-design the structure of the blank, and select the machining datum good parts, the design process route parts; then the part of each step of the process to calculate the size of a key is to determine the technical equipment and cutting the amount of each process; then dedicated fixture design, select the design of the various components of the fixture, such as positioning elements, clamping elements, guiding element, clamp connections and machine parts and other components; positioning error generated when calculating the fixture, analytical rationality and inadequacies fixture structure and attention to improving the design in the future.
Keywords: technology, processes, cutting the amount of clamping, positioning
目录
摘要I
一、零件的分析1
1.1零件的作用1
1.2零件的工艺分析1
二、确定生产类型1
三、确定毛坯2
3.1确定毛坯种类2
3.2确定毛坯加工余量及形状2
四、工艺规程设计2
4.1选择定位基准3
4.2制定工艺路线3
4.3机械加工余量及公差的确定4
4.3.1外圆加工表面及端面4
4.3.2两孔的加工余量6
4.3.3确定切削用量及时间定额6
五、钻床夹具设计13
5.1问题的提出13
5.2夹具的设计13
5.2.1定位基准选择13
5.2.2切削力及夹紧力计算13
5.2.3定位误差分析14
5.2.4夹紧元件的选择15
5.2.5夹具设计及操作的简要说明16
5.2.6钻床夹具的装配图见附图16
参考文献17
A3-零件图1
A3-毛坯图2
A1-夹具体1
A1-夹具装配图1
字数统计
设计所包含文件
工序卡
设计目录
过程卡
摘要部分
夹具设计部分
切削用量的确定