夹具装配图
摘要
零件的加工工艺编制，在机械加工中占有非常重要的地位，零件工艺编制得合不合理，这直接关系到零件最终能否达到质量要求；夹具的设计也是不可缺少的一部分，它关系到能否提高其加工效率的问题。因此这两者在机械加工行业中是至关重要的环节。
在机床上对零件进行机械加工时，为保证工件加工精度，首先要保证工件在机床上占有正确的位置，然后通过夹紧机构使工件在正确位置上固定不动，这一任务就是由机床夹具完成。对于单件、小批量生产，应尽量使用通用夹具，这样可以降低工件的生产成本。但是由于通用夹具适用各种工件的装夹，所以夹紧时往往比较费时间，并且操作复杂，生产效率低，也难以保证加工精度，为此需设计专用夹具。
本次设计内容涉及了机械制造工艺及机床夹具设计、金属切削机床、公差配合与测量等多方面的知识。
关键词：工艺，工序，切削用量，夹紧，定位，误差
Title： Cw5-120 press commutator assembly process and fixture design
Abstract：Part of the preparation processing, in processing machinery occupies very important position, part process system is reasonable, which is directly related to the final part quality requirements can be met; fixture design is an indispensable part of, it is related to can improve the efficiency of the problem. Therefore both in the mechanical processing industry is a vital link.
In machine tool of mechanical parts of the process, in order to ensure the processing precision of the workpiece, first of all to guarantee the workpiece holds the correct position on the machine, then by clamping the workpiece in the correct position is fixed, this task is by the machine tool fixture. For single and small batch production, the use of universal fixture should be as far as possible, so that the production cost of the workpiece can be reduced. But because the universal fixture is suitable for various workpiece clamping, so clamping tend to spend more time and the operation is complex, the production efficiency is low, it is difficult to guarantee machining accuracy, so it is necessary to design a special fixture.
The design content involves the mechanical manufacturing process and machine tool fixture design, metal cutting machine tools, tolerance and measurement and other aspects of knowledge.
Keywords ： process, process, cutting dosage, clamping, positioning
目录
1序言3
2零件的分析4
2.1零件的形状4
2.2零件的工艺分析5
3工艺规程设计6
3.1确定毛坯的制造形式6
3.2基面的选择6
3.3制定工艺路线6
3.4选择加工设备和工艺装备7
3.4.1机床选用7
3.4.2选择刀具8
3.5确定切削用量及基本工时8
4夹具设计9
4.1研究原始质料9
4.2定位、夹紧方案的选择9
4.3切削力及夹紧力的计算10
4.4误差分析与计算11
4.5钻套、衬套、钻模板设计与选用12
4.6确定夹具体结构尺寸和总体结构12
参考文献13
零件图
夹具体
毛坯图
字数统计
切削用量的确定
设计所包含文件
工序卡
夹具设计部分
过程卡
说明书前三页
