1、摘摘 要要 利用模具来成型零件,能少切屑、无切屑,多工序重合。利用模具成型代替 传统切屑加工工艺,能提高生产效率、保证零件质量、节约材料、降低生产成本, 取得较高的经济效益。许多研究机构和大专院校经过多年的努力,在模具 CAD/CAE/CAM 技术方面取得了显著进步;在提高模具质量和缩短模具设计制造周 期等方面取得显著成效。本文主要介绍了汽车油箱拖架的冲裁模和弯曲模的设 计。油箱托架属于常见零件,但其模具包含了冲压摸、弯曲模等,在模具设计方 面具有代表性。设计合理优质的托架模具,能使得油箱托架的大批大量生产成本 低、质量好,节省加工工时,具有较好的经济效益。 关键词关键词:冲裁模,弯曲模,设计
2、 Mould Design OF BUS Fuel Tank Bracket Abstract Making use of mould to come to the molding part, can stop cutting crumbs, have no cuttings and makes multiple operation coincidence. Making use of molding to replace tradition cuttings process handicraft, can improve the efficacy, guarantee part mass,
3、save material, make production costs lower, and make higher economic effect. Many study organizations 、universities and colleges have got notable progress by efforts of many years ,and have great progress in the field of mould CAD/CAE/CAM technology. It gets a marked effect in the field of improving
4、 mould mass 、shortening the design for die、mould manufacturing cycle ,and so on. The paper introduces cutting mould design and curved mould design of bus fuel tank bracket. The fuel tank bracket belongs to the common part, whose mould contains stamping fumble and curved model waits, has represent al
5、iveness in the field of mould design. Designing rational high grade bracket mould, can cut down the cost of product and enhance quality for large amount production, has good economic effect. Key Words: Cutting Mould, Curved Mould, Design 课件之家精心整理资料-欢迎你的欣赏 目目 录录 1 绪论 . 1 2 工艺分析 . 1 3 模具材料的选择 . 2 4 右冲
6、孔模设计 . 3 4.1 冲压力的计算 3 4.2 确定模具压力中心 3 4.3 计算凸、凹模刃口尺寸 3 4.4 凸、凹模结构设计 4 4.5 凸、凹模外形尺寸确定 5 4.6 模具总体设计及主要零部件设计 6 4.7 冲压设备的选择 8 5 下冲孔模设计 . 9 5.1 冲压力计算 9 5.2 计算凸、凹模刃口尺寸 9 5.3 凸、凹模外形尺寸确定 9 5.4 模具总体设计及主要零部件设计 11 5.5 冲压设备的选择 11 6 右弯模设计 . 11 6.1 应力和应变状态分析 12 6.2 零件的结构工艺性分析 13 6.3 弯曲件毛坯展开尺寸的计算 14 6.4 弯曲工艺力的计算 15 6.5 弯曲设备标称压力的选择 15 6.6 回弹角的确定 15 6.7 U 行件弯曲模的结构. 16 7 下弯曲模设计 16 7.1 弯曲件毛坯展开尺寸的计算 16 7.2 弯曲工艺力的计算 18 7.3 弯曲设备标称压力的选择 20 7.4 回弹角的确定 20 7.5 U 行件弯曲模的结构. 20 8 下弯曲模设计 20 8.1 弯曲件毛坯展开尺寸的计算 . 20 8.2 弯