流水灯模具高效加工工艺及其应用研究

发布时间：2019-01-23 15:58

【摘要】：模具加工在工业生产中常用来改变零件形状,采用模具生产零部件是现代工业生产的重要手段和工艺发展方向,而高效的模具加工工艺是模具制造关键技术之一。实现模具高效加工,其工艺非常关键。目前,即使使用最先进的数控编程软件,也需要数控操作人员来编制合理加工工艺,选择适合的数控设备、刀具、夹具和切削用量等。数控设备的加工效率、加工质量,很大程度上由工艺编程人员的水平来决定。本篇论文分析了复杂型面模具高效加工工艺、铣削加工方法在模具中的实现措施；通过铣削试验,研究了模具的铣削加工工艺参数对刀具磨损和表面粗糙度的影响；利用Matlab软件绘制轨迹图,分析影响规律,从而建立刀具组合和合理切削参数。在此基础上,对复杂型面模具进行应用研究,以流水灯模具型芯为例,利用UG NX为平台,对该零件进行加工工艺分析,确定了加工工艺方案,提出了模具型芯的粗、半精、精加工刀具组合方法,以及对粗、半精、精加工走刀方式进行对比分析,使之能够提供适用的刀具结构和铣削参数。另外,通过数学模型的建立,重点研究了复杂型面模具的工艺处理主要问题,加减速度和拐角过切干涉问题,最终完成零件编程与加工,为工艺人员进行工艺方案设计、解决实际工艺问题提供指导和参考。
[Abstract]:Mould processing is often used to change the shape of parts in industrial production. It is an important means and developing direction of modern industrial production to adopt mould to produce parts, and efficient die processing technology is one of the key technologies of die manufacturing. The process of mold processing is very important. At present, even with the most advanced NC programming software, CNC operators are also needed to compile reasonable machining technology and select suitable NC equipment, tools, fixtures, cutting parameters and so on. The machining efficiency and quality of NC equipment are largely determined by the level of process programmer. In this paper, the high efficiency machining technology of complex die surface and the measures to realize milling method in die are analyzed, and the influence of milling process parameters on tool wear and surface roughness is studied through milling experiment. Matlab software is used to draw the trajectory diagram and analyze the law of influence, so as to establish the tool combination and reasonable cutting parameters. On this basis, the application of complex die surface is studied. Taking the core of flowing water lamp mould as an example, using UG NX as the platform, the processing technology of the part is analyzed, and the processing technology scheme is determined, and the coarse and semi-fine mold core is put forward. The method of tool combination in finishing machining, and the comparison and analysis of rough, semi-fine and finishing tools are carried out to provide suitable tool structure and milling parameters. In addition, through the establishment of mathematical model, the main problems of the processing of complex die surface, the problems of adding and decreasing speed and corner over-cutting interference, are studied emphatically. Finally, the programming and machining of the parts are completed, and the process scheme is designed for the technologists. Provide guidance and reference for solving practical process problems.
【学位授予单位】：华东理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TG76

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