设计简介
摘 要
本设计是基于叶片泵右泵体零件的加工工艺规程及一些工序的专用夹具设计。叶片泵右泵体零件的主要加工表面是端面及孔系。一般来说，保证平面的加工精度要比保证孔系的加工精度容易。因此，本设计遵循先面后孔的原则。并将孔与平面的加工明确划分成粗加工和精加工阶段以保证孔系加工精度。夹具选用专用夹具，夹紧方式多选用手动夹紧，夹紧可靠，机构可以不必自锁。因此生产效率较高。适用于大批量、流水线上加工。能够满足设计要求。
关键词：叶片泵右泵体类零件；工艺；夹具；
ABSTRACT
The design of special fixture processing procedure right vane pump pump body parts and process design based on. The main processing surface of vane pump pump body parts of the right end face and a series of hole. In general, to ensure the processing accuracy of plane than to guarantee the machining accuracy of the series of hole. Therefore, the design follows the principle of the surface after the first hole. And the hole and the plane processing clearly divided into rough machining stage and finish machining stage in order to guarantee the working accuracy of the series of hole. Choose special fixture fixture clamping way choose manual clamping, clamping reliable, agencies can not self-locking. Therefore the production efficiency is higher. Suitable for large batch processing, assembly line. To meet the design requirements.
Keywords: vane pump right pump body parts; technology; fixture;
目 录
摘 要 II本设计是基于叶片泵右泵体零件的加工工艺规程及一些工序的专用夹具设计。叶片泵右泵体零件的主要加工表面是端面及孔系。一般来说，保证平面的加工精度要比保证孔系的加工精度容易。因此，本设计遵循先面后孔的原则。并将孔与平面的加工明确划分成粗加工和精加工阶段以保证孔系加工精度。夹具选用专用夹具，夹紧方式多选用手动夹紧，夹紧可靠，机构可以不必自锁。因此生产效率较高。适用于大批量、流水线上加工。能够满足设计要求。
关键词：叶片泵右泵体类零件；工艺；夹具；
ABSTRACT
The design of special fixture processing procedure right vane pump pump body parts and process design based on. The main processing surface of vane pump pump body parts of the right end face and a series of hole. In general, to ensure the processing accuracy of plane than to guarantee the machining accuracy of the series of hole. Therefore, the design follows the principle of the surface after the first hole. And the hole and the plane processing clearly divided into rough machining stage and finish machining stage in order to guarantee the working accuracy of the series of hole. Choose special fixture fixture clamping way choose manual clamping, clamping reliable, agencies can not self-locking. Therefore the production efficiency is higher. Suitable for large batch processing, assembly line. To meet the design requirements.
Keywords: vane pump right pump body parts; technology; fixture;
目 录
ABSTRACT III
第1章 绪论 1
1.1 机械加工工艺概述 1
1.2机械加工工艺流程 1
1.3夹具概述 2
1.4机床夹具的功能 2
1.5机床夹具的发展趋势 3
1.5.1机床夹具的现状 3
1.5.2现代机床夹具的发展方向 4
第2章 加工工艺规程设计 6
2.1 零件的分析 6
2.1.1 零件的作用 6
2.1.2 零件的工艺分析 6
2.2 叶片泵右泵体加工的主要问题和工艺过程设计所应采取的相应措施 7
2.2.1 孔和平面的加工顺序 7
2.2.2加工方案选择 7
2.3 叶片泵右泵体加工定位基准的选择 8
2.3.1 粗基准的选择 8
2.3.2 精基准的选择 8
2.4 叶片泵右泵体加工主要工序安排 8
2.5 机械加工余量、工序尺寸及毛坯尺寸的确定 11
2.6选择加工设备及刀、量具 11
2.7确定切削用量及基本工时（机动时间） 12
第3章 铣右端面夹具设计 22
3.1 研究原始质料 22
3.2 定位、夹紧方案的选择 23
3.3 切削力及夹紧力的计算 23
3.4 误差分析与计算 24
3. 5 定向键与对刀装置设计 25
3.6 确定夹具体结构和总体结构 27
3.7夹具设计及操作的简要说明 28
第4章 车削内孔夹具设计 29
4.1 车床夹具设计要求说明 29
4.2车床夹具的设计要点 29
4.3 定位机构 31
4.4夹紧机构 31
4.5零件的车床夹具的加工误差分析 32
4.6 确定夹具体结构尺寸和总体结构 33
4.7 零件的车床专用夹具简单使用说明 34
结 论 35
参考文献 36
致 谢 38
