液压阀腔零件机械加工工艺规程及工装设计说明书

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在这次毕业设计中,根据课题所给的零件图、技术要求,通过查阅相关资料和书籍,了解和掌握了的机械加工工艺和编程的一般方法和步骤,并运用这些方法和步骤进行了液压阀腔的机械加工工艺及夹具设计。整个设计的指导思想“简便、高效、经济”。力求生产处符合要求的产品。
2 零件的分析
2.1 夹具的发展史
题目所给的零件是液压阀腔,而液压阀腔一般是板状物,上面钻或铣有直孔或者是凹台,其是液压阀的腔体,而本课题的任务就是“液压阀腔零件机械加工工艺规程及工装设计”。
本科生毕业设计
题 目:液压阀腔零件机械加工工艺规程及工装设计
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摘要:本毕业论文主要讲的是液压阀腔零件机械加工工艺规程及工装设计,设计镗孔夹具的设计过程。首先进行零件的分析,利用CAD绘出零件图,分析结构特点,接着确定零件主要加工要求然后进行工艺规程及夹具设计,确定毛坯利用CAD画毛坯图,确定定位基准,制定工艺路线,计算切削余量,最后再做镗φ100和φ76两孔的夹具设计。在设计的时候应该选择定位基准和夹紧方案,选用合适的定位元件和夹紧装置,接着进行定位误差的分析、计算切削力及夹紧力,判断夹具设计的合理性。
At present, part of the processing of domestic have begun to close to the machine tool, but also need to clamp the workpiece, that is to say, although the technology has been greatly improved but his nature has not changed much, on the flip side, because of his skill and precision is high, so a high quality tool holder of machine tools is an absolute necessity. As everyone knows, because our technology in the unceasing development, technical requirements for processing of the knife is also more and more high, before an ordinary lathe is clamped four tool, and now there is a large number of will not meet the work requirements, therefore, tool holder part can clamp the tool also needs our staff to develop.
本文的研究重点在于通过对液压阀腔的工艺性和力学性能分析,对加工工艺进行合理分析,选择确定合理的毛坯、加工方式、设计高效、省力的夹具以及设计出简单、实用的数控加工程序,通过实践验证,最终加工出合格的液压阀腔零件。
关键词:液压阀腔,加工余量,工艺,夹具
Abstract:Enable producing the target in process of production raw materials, the blank , state of quality and quantity on part become always take place direct course of change ask craft course, if the blank is made, machining, heat treatment , assemble etc. and call it the craft course. In the course of making the craft , is it confirm every erector location and worker step that process need this of process to want, the locomotive of processing , this process , and the entering the giving amount of the lathe, cut depth , the rotational speed of the main shaft and speed of cutting, the jig of this process, the cutter and measuring tool, a one hundred sheets of number of times still leaves and a one hundred sheets of length leaves, calculate basic time of this process , auxiliary time and service time of place of working finally.
Keywords:fixture multi-function;Die forging links;Group technology;clipping tight
摘 要I
AbstractII
第一章 绪论1
1 绪论
本文首先对液压阀腔的零件进行分析,通过对液压阀腔进行的研究和分析,描述了它的毛坯制造形式、机械加工余量、基准选择、工序尺寸和毛坯尺寸的确定,以及切削用量和工时的计算等相关内容。为了提高劳动生产率,降低劳动强度,保证加工质量,与指导老协商后,觉得用夹具比较合适。
2.2 零件的ቤተ መጻሕፍቲ ባይዱ艺分析
(1)以主视图为主要加工表面的加工面。
这一组加工表面包括:
液压阀腔上下表面的铣削加工,上表面表面粗糙度为 ,下表面的表面加工精度要高,粗糙度为 。下表面深3.3凹台的铣削加工。其表面粗糙度为 。∮100,∮176,∮65孔的镗削加工,∮110,∮85凹台的铣削加工,其表面粗糙度为 。
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