钢板弹簧支架的四爪定心夹紧车夹具设计及的加工工艺装备含4张CAD图+说明书

钢板弹簧支架

钢板弹簧支架工艺与夹具设计
摘要

本设计是基于钢板弹簧支架零件的加工工艺规程及一些工序的专用夹具设计。钢板弹簧支架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孔系定位加工出平面，在后续工序中除个别工序外均用顶平面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：钢板弹簧支架类零件；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
摘要II
ABSTRACT III
第1章绪论1
1.1夹具简介1
1.2夹具的发展趋势1
1.3本次设计的内容2
1.4机床夹具的功能2
第2章加工工艺规程设计4
2.1零件的分析4
2.1.1零件的作用4
2.1.2零件的工艺分析4
2.2钢板弹簧支架加工的主要问题和工艺过程设计所应采取的相应措施5
2.2.1孔和平面的加工顺序5
2.2.2加工方案选择5
2.3钢板弹簧支架加工定位基准的选择6
2.3.1粗基准的选择6
2.3.2精基准的选择6
2.4钢板弹簧支架加工主要工序安排7
2.5机械加工余量、工序尺寸及毛坯尺寸的确定9
2.6选择加工设备及刀、量具9
2.7确定切削用量及基本工时（机动时间） 10
第3章加工钢板弹簧支架车床夹具设计22
3.1车床夹具设计要求说明22
3.2车床夹具的设计要点22
4.2.3切削力及夹紧力的计算24
3.3定位机构26
3.4夹紧机构26
3.5零件的车床夹具的加工误差分析26
3.6确定夹具体结构尺寸和总体结构27
3.7零件的车床专用夹具简单使用说明29
结论30
参考文献31
致谢33

A夹具装配图

字数

卡盘体

工序图

摘要

设计所包含文件

钢板弹簧支架毛坯图

工序卡

被加工工序

过程卡

目录

车夹具设计