推动架的钻φ32孔夹具设计及加工工艺装备含4张CAD图+说明书

夹具装配图

本文是有关推动架工艺步骤的说明和机床夹具设计方法的具体阐述。工艺设计是在学习机械制造技术工艺学及机床夹具设计后，在生产实习的基础上，综合运用所学相关知识对零件进行加工工艺规程的设计和机床夹具的设计，根据零件加工要求制定出可行的工艺路线和合理的夹具方案，以确保零件的加工质量。
据资料所示，推动架是牛头刨床进给机构中的小零件，其主要作用是把从电动机传来的旋转运动通过偏心轮杠杆使推动架绕其轴心线摆动，同时拨动棘轮，带动丝杠转动，实现工作台的自动进给。在设计推动架机械加工工艺过程时要通过查表法准确的确定各表面的总余量及余量公差，合理选择机床加工设备以及相应的加工刀具，进给量，切削速度、功率，扭矩等用来提高加工精度，保证其加工质量。
关键词机械加工、工艺规程、专用夹具、推动架

ABSTRACT
This article is about promoting process steps and the machine tool fixture design method of concrete in this paper.
Process design is in learning technology of mechanical manufacturing technology and machine tool fixture design, on the basis of production practice, the integrated use of learned knowledge about spare parts for the design of machining process planning and machine tool fixture design, in accordance with the requirements of parts processing, the feasible process route and reasonable fixture scheme, to ensure parts processing quality.
According to data shows, the push is rack shaper into small parts for the organization, its main role is to put the rotation movement coming from the motor with eccentric lever push around its axis swing, plucked a ratchet wheel at the same time, drive screw rotation, realizes the workbench automatically feed.
When designing driving frame machining process through the look-up table method to determine the total allowance and allowance tolerance of each surface, selection of machine tool processing equipment and corresponding processing cutting tool, feed, cutting speed, power, torque and so on to improve machining accuracy, ensure the quality of its processing.

Key words: Machining, process planning, special fixture, To promote

目录
1推动架的工艺分析及生产类型的确定1
1.1推动架的作用1
1.2推动架的技术要求2
1.3推动架工艺分析2
2确定毛坯、绘制毛坯简图3
2.1选择毛坯3
2.2确定毛坯的尺寸公差和机械加工余量3
2.3绘制推动架毛胚的铸造简图4
3、拟定推动架工艺路线4
3.1、定位基准的选择4
3.1.1精基准的选择5
3.1.2粗基准的选择5
3.2各面、孔加工方法的确定5
3.3加工阶段的划分6
3.4工序的集中与分散6
3.5工序顺序的安排6
3.51机械加工工序6
3.52热处理工序6
3.53辅助工序6
3.6确定加工路线7
4机床设备及工艺装备的选用8
4.1机床设备的选用8
4.2工艺装备的选用8
5加工余量、工序尺寸和公差的确定8
6切削用量、时间定额的计算8
6.1切削用量的计算8
6.11钻孔工步9
6.12扩孔工步9
6.13粗铰工步9
6.14精铰工步9
6.2时间定额的计算10
6.21基本时间的计算10
6.22辅助时间的计算11
6.23其他时间的计算11
6.24单件时间的计算12
7夹具设计12
7.1问题的提出12
7.2夹具设计12
7.21定位方案12
7.22夹紧机构13
7.23夹具与机床联接元件13
7.24定位误差分析13
7.25切削力及夹紧力的计算13
8设计体会15
9参考文献16

推动架零件图

夹具体

夹具设计部分

字数

工序卡

摘要

毛坯图

目录

设计所包含文件

过程卡