摘要
本设计是基于带铜衬轴套零件的加工工艺规程及一些工序的专用夹具设计。带铜衬轴套零件的主要加工表面是外圆及孔系。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。主要加工工序安排是先以支承孔系定位加工出顶平面，在后续工序中除个别工序外均用外圆和工艺孔定位加工其他孔系与平面。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：带铜衬轴套零件；工艺；夹具；
ABSTRACT
The design is based on the body parts of the processing order of the processes and some special fixture design. Body parts of the main plane of the surface and pore system. In general, the plane guarantee processing precision than that of holes machining precision easy. Therefore, this design follows the surface after the first hole principle. Plane with holes and the processing clearly divided into roughing and finishing stages of holes to ensure machining accuracy. Datum selection box input shaft and the output shaft of the supporting hole as a rough benchmark, with top with two holes as a precision technology reference. Main processes arrangements to support holes for positioning and processing the top plane, and then the top plane and the supporting hole location hole processing technology. In addition to the follow-up processes individual processes are made of the top plane and technological hole location hole and plane processing. Supported hole processing using the method of coordinate boring. The whole process of processing machine combinations were selected. Selection of special fixture fixture, clamping means more choice of pneumatic clamping, clamping reliable, institutions can not be locked, so the production efficiency is high, suitable for large batch, line processing, can meet the design requirements.
Key words: Angle gear seat parts; fixture;
目录
第1章加工工艺规程设计1
1.1零件的分析1
1.1.1零件的作用1
1.1.2零件的工艺分析1
1.2带铜衬轴套加工的主要问题和工艺过程设计所应采取的相应措施2
1.2.1孔和平面的加工顺序2
1.2.2加工方案选择2
1.3带铜衬轴套加工定位基准的选择3
1.3.1粗基准的选择3
1.3.2精基准的选择4
1.4带铜衬轴套加工主要工序安排4
1.5机械加工余量、工序尺寸及毛坯尺寸的确定5
1.6选择加工设备及刀、量具6
1.7确定切削用量及基本工时（机动时间） 6
第2章夹具设计18
2.1问题的指出18
2.2夹具的夹紧装置和定位装置18
2.3夹具方案的设计19
2.4夹具的导向21
2.5切削力及夹紧力的计算22
2.6钻孔与工件之间的切屑间隙24
2.7钻模板25
2.8定位误差的分析26
2.9钻套、衬套、钻模板设计与选用27
2.10确定夹具体结构和总体结构29
2.11夹具设计及操作的简要说明30
总结31
参考文献32
第1章加工工艺规程设计
1.1零件的分析
1.1.1零件的作用
题目给出的零件是带铜衬轴套。带铜衬轴套的主要作用是传动连接作用，保证各轴套轴能正常运行，并保证部件与其他部分正确
带铜衬轴套零件图
工序草图
夹具体
夹具装配图（钻3-Φ10孔）
芯轴
钻模板
钻模板支撑
