设计简介
摘 要
拨叉的加工质量将直接影响机器的性能和使用寿命。本次设计旨在提高CA6140车床拨叉的加工效率，由此我们首先对拨叉的结构特征和工艺进行了仔细的分析，然后确定了一套合理的加工方案，加工方案要求简单，操作方便，并能保证零件的加工质量。在制定加工工艺规程的顺序如下：1、分析零件；
2、选择毛坯；
3、设计工艺规程：包括制定工艺路线，选择基准面等；
4、工序设计：包括选择机床，确定加工余量，工序尺寸毛坯尺寸，确定切削用量及计算基本工时等；
5、编制工艺文件。
此外，为了提高劳动生产率，降低劳动强度，保证加工质量，需设计专用夹具，以满足加工过程的需要。
关键词：拨叉; 工艺规程; 夹具设计
Abstract
Bocha the processing machines will directly affect the quality of the performance and service life. This design seeks to increase the Bocha CA6140 lathe processing efficiency, which we first Bocha of the structural features and a careful analysis, and then determine a reasonable processing programme, processing programme requires simple, easy to operate, And to ensure that parts of the processing quality. In formulating a point of order processing the order is as follows:
1, analysis of components;
2, the choice of rough;
3, the design of a point of order: including the development of routes, such as base-level choice;
4, the design process: including the choice of machine tools to determine Jiagongyuliang, process size, Rough size, determine the amount and terms of cutting the basic working hours;
5, the preparation of documents
In addition, in order to raise labor productivity and reduce labor intensity, the quality assurance process, the need for fixture design to meet the processing needs
Key words: Bocha; process of order; fixture design
目 录
摘 要... 3
1.零件分析... 6
1.1 零件的作用... 6
1.2 零件的工艺分析... 6
2. 工艺规程设计... 6
2.1 毛坯的制造形式... 6
2.2 基准面的选择... 7
2.2.1 粗基准的选择... 7
2.2.2 精基准的选择... 7
2.3 制定工艺路线... 8
3. 绘制零件图和编制工艺文件... 26
3.1 绘制零件图... 26
3.2 编制工艺文件... 26
4. 夹具设计... 28
4.2.1 定位基准的选择... 28
4.2.2 1．夹具设计任务... 28
结 论... 30
致 谢... 31
参考文献... 32
