机械5

摘要 本课题最终形成神龙G29及T91，东风D760项目制件中的上支架-前悬架减震器正冲侧冲模具，进行三维数字化设计。通过其他公司的试验，针对神龙G29及T91，东风D760项目制件，对上支架-前悬架减震器正冲侧冲模具进行计算机辅助设计，实现模具三维数字化设计与虚拟装配。用以指导神龙G29及T91，东风D760项目制件正冲侧冲模具的生产实践，达到提高生产效率、获得高质量产品的目标。就神龙G29及T91，东风D760项目制件模具设计，通过现场调研发现存在如下主要问题：1：模具制造周期长，成本高，人工操作量大，劳动时间长，根据工厂的生产设备，规划出好的生产加工工艺过程，设计出合理的方案，达到降低生产成本，提高生产效率的目的，以方便后面的工艺设计。2：此次生产需要了解产品，对图纸进行深入分析。基于上述原因，对神龙G29及T91，东风D760项目制件正冲，侧冲模具设计研究已势在必行。通过对模具的设计，不但能够缩短生产周期，降低制造成本，提高加工精度，延长刀具寿命，而且依据本公司产品的生产及发展需要，可以建立或完善生产加工工艺流程，从而更大程度上提高模具设计水平，获取更大的经济利益。 关键词：正冲侧冲模具三维数字化设计 Abstract This topic eve
ntually become the drago
n G29 a
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nt suspe
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n shock absorber are blu
nt side blow mould, 3 d digital desig
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nt mold for computer aided desig
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ndvirtual assembly.To guide the drago
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ng D760 project parts are side blow mould productio
n practice, to improve productio
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n G29 a
nd T91, do
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ng D760 stampi
ng mould desig
n project, through the field i
nvestigatio
n fou
nd the mai
n problems are as follows: 1: mold ma
nufacturi
ng cycle is lo
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nt of ma
nual operatio
n,work time is lo
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ni
ng a good productio
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nd processi
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nable solutio
n, to reduce the productio
n cost, improve productio
n efficie
ncy, the purpose of the desig
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need to u
ndersta
nd products, i
n-depth a
nalysiswas carried out o
n the drawi
ngs.Based o
n the above reaso
ns, the drago
n G29 a
nd T91, do
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ng D760 project parts are blu
nt, side blow mould desig
n research is imperative.Based o
n the desig
n of the mould,
not o
nly ca
n shorte
n the productio
n cycle, reduce the ma
nufacturi
ng cost, improve the machi
ni
ng accuracy, exte
nd the service life of cutti
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nd accordi
ng to the compa
ny's products of the productio
n a
nd developme
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needs, ca
n establish or improve the productio
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nd processi
ng process, to a greater exte
nt, improve the level of mold desig
n, to obtai
n greater eco
nomic be
nefits. Keywords: side blow mould 3 d digital desig
n 目录 目录4 第一章概论5 1.1模具工业的发展与现状6 1.2 CAD在模具设计中的应用9 第二章工艺分析与模具结构形式设计10 2.1工艺分析10 2.2制定工艺方案10 第三章工艺计算12 3.1冲压力的计算12 3.2退料力、顶出力的计算13 3.3降低冲裁力的方法14 3.4计算压力中心14 第四章冲压设备选择16 4.1典型冲压设备概述（曲柄压力机） 16 4.3选择冲压设备18 4.4模具闭合高度校核19 第五章模具结构设计20 5.1模具总体结构设计20 第六章模具主要零部件设计23 6.1凸、凹模设计23 6.2凸模结构设计26 6.3凹模结构设计27 6.4退料板设计27 6.5弹簧的选择27 6.6螺钉的选择30 6.7导向零件选择31 第七章模具总图绘制32 7.1绘制二维工程图32 7.2三维建模32 7.3干涉检查、分析32 第八章模具主要零部件制造工艺的编制33 8.1上模座33 8.2下模座34 8.3导柱35 8.4导套35 第九章结论36 致谢38