《汽车底盘固定支架成形工艺及模具设计》》-毕业论文.doc

汽车底盘固定支架成形工艺及模具设计 摘要：本设计所设计的是汽车底盘固定支架的成形工业和模具设计。主要是设计一套简便、经济以及适用的模具能很好的完成产品的生产要求。由于工件尺寸未注明公差IT14，模具可按IT11制造，尺寸精度和形状精度要求低，普通冲裁完全能满足要求。本设计主要包含两套模具，冲孔落料复合模和弯曲模。模具大部分零件都是国标，如上、下模座、模柄、导柱、导套等，主要设计的是工作零件，如凸模、凹模以及凹凸模和辅助装置，如材料送进的定向定位装置、废料排除装置、卸料退件装置等。 关键词：汽车固定支架； 冲孔落料； 弯曲; 模具设计 Automobile chassis fixed bracket forming technology and die design Abstract:This design is the design of the car chassis fixed bracket to the forming of industrial and mould design.The main design is a simple, economic and the applicable mould can be a very good finish product production requirements.Due to the size of work-piece not specified tolerance IT14, mould can be according to IT11 manufacturing, precision and shape accuracy low demand, common cutting can fully meet the requirements.This design mainly include two sets of mould, punching dropping material compound mould and bending mould.Most of the mould are all national standard, as above, the mould seat, die handle, guide pin, guide set, etc,The main design is working parts, such as punch, concave and convex die and mould and auxiliary equipment,such as materials sent to of the directional positioning device, waste remove device, unloading back a device etc. Key words:Car fixed bracket;Punching dropping material;Bending;Mould design 目 录 TOC \o 1-2 \h \u HYPERLINK \l _Toc20371 1. 绪论 PAGEREF _Toc20371 1 HYPERLINK \l _Toc3511 1.1 本设计研究的目的和意义 PAGEREF _Toc3511 1 HYPERLINK \l _Toc3045 1.2 本设计国内外研究历史与现状分析 PAGEREF _Toc3045 1 HYPERLINK \l _Toc25723 1.3 目前存在的主要问题 PAGEREF _Toc25723 2 HYPERLINK \l _Toc10888 1.4 本设计拟解决的关键问题和研究方法 PAGEREF _Toc10888 2 HYPERLINK \l _Toc19812 2. 冲裁模具的设计 PAGEREF _Toc19812 3 HYPERLINK \l _Toc6258 2.1 选题 PAGEREF _Toc6258 3 HYPERLINK \l _Toc9300 2.2 原始数据 PAGEREF _Toc9300 3 HYPERLINK \l _Toc25019 2.3 工艺分析 PAGEREF _Toc25019 4 HYPERLINK \l _Toc19923 2.4 确定冲压工艺方案 PAGEREF _Toc19923 5 HYPERLINK \l _Toc1615 2.5 模具结构形式的确定 PAGEREF _Toc1615 6 HYPERLINK \l _Toc27008 2.6 计算工艺尺寸 PAGEREF _Toc27008 6 HYPERLINK \l _