冲压模具汽车覆盖件侧围前连接板大学学位论文.doc

摘要 本次设计从工艺性分析开始，设计的基本思路根据工艺要求来确定。在分析冲压变形过程及冲压件质量影响因素的基础上，经过方案比较，选择模作为该模具工艺方案。然后设计模具的工作部分，即凸、凹模的设计。包括典型零件的工艺分析工艺方案制订冲压工艺计算、冲模设计。 设计中涉及冲压工艺性分析与工艺方案制定、排样设计、冲压件质量及影响因素、冲压力、间隙确定、刃口尺寸计算原则和方法、冲压典型结构、零部件设计及模具标准应用、冲模设计方法与步骤等。根据模具的装配原则，完成模具的装配，装配模具试冲通过试冲可以发现模具设计和制造的不足，并找出原因给予纠正，并对模具进行适当的调整和修理， 。 关键词： 模具 工艺方案 The Design of Punching Die for Brake Accessory Abstract：The design part name for automobile panel side of front connection plate,starting from the technical analysis, the design of the basic idea is according to the technical requirements to determine. In the analysis of stampingdeformation process and affect the quality of stamping parts based on the factors, through comparing the two scheme, choose a set of compound dieand two sets of single process mode to process the design of mold partsproduction. The working part and mold design, namely the design of convex,concave convex die and the concave die. Including the typical parts of the process analysis, process plan, process calculation, stamping die design. The design process involves the stamping process analysis and process planning, layout design, the factors, stamping parts quality and impactpressure, gap determined, blade size calculation principle and method ofstamping, typical structure, standard application, component design and molddie design methods and steps. According to the principle of die assembly,complete mold assembly, assembly die stamping deficiencies can be found bystamping die design and manufacturing, and find out why to correct, and themold to make the appropriate adjustments and repairs, the stamping diedesign can produce qualified parts. Key words：Automotive covering parts；Process plan ； Die； 1. 绪 论 1.1 课题背景意义 本次设计的零件为汽车覆盖件，也是冲压件。冲压件指使用冲床模具对施加外力，使产生塑性变形或分离，所需形状尺寸的工件的成形加工方法。工业的基础行业模具行业，产品质量和市场的开发能力技术水平决定。当前模具工业发展有两个特点：一是要缩短模周期、降低模成本。二是模具向发展大型化、自动化、复杂化和精密化。模具制造要求越来越高，制造工艺越来越复杂。为了降低模具成本，在先进设备的同时，采用多种工艺措施延长模具使用寿命。 国外相继开发的新型热作模具钢有高淬透性特大型锻压模具钢和高热强性模具钢以及高温热作模具钢