毕业设计---落料凹模设计

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1、 摘 要 本设计是以AutoCAD平面设计基础上的计算机辅助设计。介绍了对一副落料模具 进行工艺分析后并进行加工制造的过程。零件材料选用Cr12，Cr12钢是一种应用 广泛的冷作模具钢，高碳、高铬类型，莱氏体钢，具有较好的淬透性和良好的耐 磨性。操作方便安全。但此零件是凹模，制造较为困难。一般采用电火花，线切 割加工， 加工精度较高。 本设计的特点是分析落料凹模板类成型零件的加工工艺、 零件材料及热处理要求, 提出了可采用的工艺方案及工艺规程, 对于型孔类成 型零件采用数控线切割加工的程序编制方法及要点。用这些方法制造模具，过程 简单，生产周期短，成本低，工件表面质量好，尺寸精度，且操作方便，

2、生产效 率高。本方法制造此模具性能可靠，运行平稳，能够适应用大批量生产要求，提 高了产品质量和生产效率，降低劳动强度和生产成本。 关键词关键词: 落料凹模， 材料，热处理，AutoCAD，数控线切 ABSTRACT This design is based on AutoCAD graphic design of computer aided design. Introduces theOn a pair of blanking mould process analysis and processing manufacturing process. Parts materialMaterial

3、 selection, Cr12 Cr12 steel is a widely used cold die, high carbon, high chromeType, ledebrite steel, and has good its quench-hardening ability and good wear resistance. Convenient operationSafety. But the parts is concave die, making more difficult. Generally USES edm, wire cuttingCut, processing p

4、recision. This design is characteristic of analysis blanking concave template class shapeThe processing of this part, parts material and heat treatment requirements, puts forward the process can be usedScheme and technical process, of its molding part for model aperture adopts CNC wire-cutting processing of processSequence establishment method and points. With these methods, mold manufacturing process simple, production cycleShort, low cost and good quality, workpiece surface dimension accuracy,