底座零件工艺工装设计及cadcam大学学位论文.doc

摘 要 本论文的题目是底座零件工艺工装设计及CAD/CAM，题目来源于锦州双菱精密铸造有限公司熔模铸造机械加工工艺总过程模具CAD/CAM及其优势定位及锁紧零件熔模模具的实际应用。Abstract The topic of this graduation design is the design of processing planning，tooling devices and CAD/CAM for installation seat（6422635）, which comes from Wuxi Impro (China) Co, LTD.According to the companys production capability and equipment cases, the designer has completed the investment mould of parts, the process planning of parts and special fixture. On this basis, based on CAD / CAM technology, the designer has completed the machanisms simulation of fixture. On the basis of introducing investment mould, process planning, and mould CAD/CAM as well as its advantage, the thesis describes design contents and methods of the investment mould design, process planning and special fixture in detail. Thereinto, mold design mainly has three-dimensional design of solid parts, the mold parting surface design, mold tooling interference analysis, and the design of gating system, positioning and fastening device mechanism. The process planning design contains selection of the process, positioning and fastening device ways, machine tools and tools, the computation of cutting dosages and the formulation of process route. Moreover, fixture design solves the problems such as the positioning error analysis and clamping force analysis, and so on. Finally, the thesis introduces the machanisms simulation of fixture, which includes the machine tools and tools selection, cutting parameters settings, process simulation and analysis of the spindle speed, etc. In a word, basing on process planning and tooling devices design theory for the parts, this paper has carried out the practical application of the installation seat（6422635）parts investment mould, process planning and tooling devices design, and CAD / CAM technology as well. Key words：Three-dimensiona solid model; Investment mould;process planning; Fixture; Fixture device simulation 目 录 第1章 绪 论 1 1.1 熔模铸造 1 1.2 机械加工工艺规程制定总过程 1 1.3 模具CAD