梳棉机箱体加工工艺及组合机床设计(任务书,开题报告,外文翻译,进度计划表,论文说明书14000字,cad图纸7张)
摘 要
应用组合机床加工大批量零件，快捷高效，生产效率高是机械加工的发展方向。本次设计任务是制定梳棉机箱体结合件的加工工艺、组合钻孔工序的工装设计、组合机床设计。
组合机床是以通用部件为基础，配以按工件特定形状和加工工艺设计的专用部件和夹具，组成的半自动或自动专用机床。组合机床一般采用多轴、多刀、多工序、多面或多工位同时加工的方式，生产效率比通用机床高几倍至几十倍。由于通用部件已经标准化和系列化，可根据需要灵活配置，能缩短设计和制造周期。多轴箱是组合机床的核心部件。它是选用通用零件，按专用要求进行设计的，在组合机床设计的过程中，是工作量较大的部件之一。它是根据工序图和加工示意图所确定的工件加工孔的数量和位置，切削用量和主轴类型设计的传递各主轴运动的动力部件。其动力来自通用的动力箱，与动力箱一起安装于进给滑台，可完成钻，绞等加工序。
在工艺制定过程中，通过生产批量的分析确定梳棉机箱体结合件的加工方案，并寻求最佳的工艺方案，借此说明了工艺在生产过程中的重要性；在组合钻孔工序的工装设计过程中，结合实例，介绍了夹具设计方法，特别是对孔的加工精度进行了探讨；在组合机床设计过程中，结合具体实例和设计经验, 阐述了通用件(如液压滑台，动力箱等)的选取及专用部件（如主轴箱）的设计计算。
关键词：组合机床 ；多轴箱； 工艺 ；钻夹具
Abstract
Efficient application of combined high-volume machining parts, high production efficiency, is the development direction of machining. This design task is to develop the carding machine with process, a combination of drilling fixture design, modular machine tool design.
The aggregate machine-tool is take the general part as a foundation, matches by presses the work piece specific shape and the processing technological design special-purpose part and the jig, the composition semiautomatic or the automatic special purpose machine. The aggregate machine-tool selects the method which generally multiple spindle, the multi-knives, the multi-working procedures, many or the multi-locations simultaneously process, production efficiency ratio general engine bed high several times to several dozens times. Because the general part already the standardization and the seriation, might according to need to dispose nimbly, could reduce the design and the manufacturing cycle. The multi-axle-boxes are aggregate machine-tool's core parts. It selects the common parts, carries on the design according to the special-purpose request, in the aggregate machine-tool design's process, is one of work load big parts. It is acts according to the work piece processing hole quantity which and the position the working procedure chart and the processing schematic drawing determined, the cutting specifications and the main axle type design transmission various main axles movement power unit. Its power from the general power box, installs together with the power box in to feed sliding table, may complete drills, twists and so on working processes.
Making process in the process, through the analysis of the production batch determination card box with processing schemes, and to seek the best technology solutions, which illustrates the importance of process in the production process; in combination with examples drilling fixture design process, fixture design method, are introduced, especially the processing precision of hole were discussed; in the design of the modular machine tool, combined with specific examples and design experience, expounds the general component (such as hydraulic slipway, power box) selection and special parts (such as the design and calculation of main spindle box).
Keywords: combination of machine ; tool spindle; technology ; drilling fixture
目 录
摘 要 III
Abstract IV
1 绪论 1
1.2 国内及国外研究现状 2
1.3 本课题应达到的要求 2
2 工艺方案的拟定 3
2.1 梳棉机箱体结合件零件的工艺技术分析 3
2.2 定位分析、基准选取及制定工艺路线 4
2.2.2 选择精基准： 5
2.2.3 重要工序分析： 5
2.2.4 工艺路线： 5
3 组合机床总体设计 6
3.1 被加工零件工序图 7
3.1.1 被加工零件工序图的作用与内容 7
3.1.2 绘制被加工零件图的规定及注意事项： 7
3.2 加工示意图 8
3.2.1 加工示意图的作用和内容： 8
3.2.2选择刀具、导向及有关计算 8
3.3 机床联系尺寸图 9
3.4 机床分组 11
3.5组合机床生产率计算卡 12
4 钻夹具设计 15
4.1 梳棉机箱体结合件钻孔组合机床夹具分析 15
4.1.1 根据工件不同的生产条件，可以有各种不同的安装方法： 15
4.1.3 夹紧力“两要素”，方向与作用点： 16
4.2 定位夹紧方案的确定 16
4.3 刀具选择及切削用量的选取 16
4.4 夹具体设计： 18
5 多轴箱设计 21
5.1 引言 21
5.2 绘制多轴箱设计原始依据图 22
5.2.1主轴、齿轮的确定及动力运算 23
5.2.2 多轴箱传动设计 25
6 结论和展望 30
致 谢 31
参考文献 33
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