钻孔夹具装配图
泵缸的机械加工工艺及夹具设计
摘要
此次的研究方向是对泵缸的工艺设计以及专用夹具设计，本文前期主要是关于泵缸工艺的研究，先分析泵缸的结构特点以及它的功用，确定加工余量，设计出泵缸的毛坯图、加工工艺规程卡片以及工序卡片。根据泵缸的性质和零件图上各端面的粗糙度选择相对应的机床加工，确定切削用量并计算出加工工时。后半部分是针对泵缸专用夹具进行分析设计，选取泵缸要加工的表面，确定其定位基准面以及定位元件，设计出夹紧方案，并画出两套夹具的装配图和零件图，对设计出的夹具进行夹紧力和定位误差的计算并校核。
关键词：泵缸；工艺设计；夹具
Process specification and fixture
design of pump cylinder
Abstract
The research direction of this paper is on the process design of pump cylinder and the design of special fixture. This article is mainly about the research of pump cylinder process. First, it analyzes the structure characteristics of the pump cylinder and its function, determines the processing allowance, designs the blank diagram of the pump cylinder, the processing procedure card and the process card. According to the nature of the pump cylinder and the roughness of each end of the part drawing, choose the corresponding machine tool processing, determine the cutting amount and calculate the processing time. The second half of the paper is aimed at the analysis and design of the special fixture for the pump cylinder, select the surface of the pump cylinder to be machined, determine the positioning datum and the positioning element, design the clamping scheme, and draw the assembly drawing and part drawing of the two sets of fixture, and calculate and check the clamping force and the positioning error of the designed fixture.
Key words: pump cylinder; process design; jig
目录
摘要III
Abstract IV
1绪论1
1.1机械加工工艺的重要性1
1.2夹具的发展历史1
1.3泵缸的种类2
1.4课题的研究问题及方法2
2零件图分析3
2.1零件图样分析3
2.2结构工艺分析3
2.3零件加工表面的技术要求分析4
2.4绘制毛坯图4
3泵缸加工工艺规程设计5
3.1拟定工艺路线5
3.2工艺方案分析7
4工艺装备的选择及工时计算8
4.1机床的选择8
4.2刀具、夹具、量具的选择8
4.3确定各表面加工余量9
4.4计算各工序加工工时10
5夹具设计24
5.1夹具的设计思路24
5.2夹具设计的注意事项24
5.3定位元件的选择与设计25
5.4夹紧机构的选择与设计26
5.5夹具体的设计27
6综述28
致谢29
参考文献30
A零件图
字数统计
设计所包含文件
毛坯图
镗夹具装配图
