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綦江齿轮传动有限公司生产的各类拨叉轴组件多达数10种,原来设计夹具时,基本上是一个零件号设计一副焊接夹具,由于夹具制造周期长,制造成本高,同样类型的产品较多,给生产车间的使用和管理带来许多的困难和隐患。本文介绍的这种新设计的焊接夹具,克服了原有夹具产品单一性的缺陷。 相似文献
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汽车车身装焊夹具的设计是一门经验性很强的综合性技术,在设计时首先要确定生产纲领.熟悉产品结构,了解变形特点,把握制件及装配精度,通晓工艺要求。只有做到这些.才能对焊接夹具进行全方位的设计。运用UG软件对汽车车身装焊夹具进行设计,符合装焊夹具设计参数化、模块化、智能化的发展特点。UG软件的功能很强大, 相似文献
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阐述了汽车驾驶室组合式结构的特点及设计相应的总成装焊夹具的迫切性和重要性,提出了汽车驾驶室总成组合式装焊夹具的设计原则、方法及其典型结构。 相似文献
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实施工艺装备的通用化、系列化和标准化是提高企业产品开发能力的必要措施。讨论了汽车变速器生产中所选用的通用化夹具类型,并对所选用的通用化夹具提出了设计原则和设计要点,特别在设计上提出了动态模型作为设计依据的观点,以及单元件设计的概念。在通用夹具的实施上提出了通过建立企业通用化工装标准的方法来实施的观点。充分利用通用化工装可以使单一零件的开发成本平均下降60%,开发周期缩短50%。 相似文献
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D. O. Kang S. J. Heo M. S. Kim W. C. Choi I. H. Kim 《International Journal of Automotive Technology》2012,13(1):109-122
This study presents the robust design optimization process of suspension system for improving vehicle dynamic performance
(ride comfort, handling stability). The proposed design method is so called target cascading method where the design target
of the system is cascaded from a vehicle level to a suspension system level. To formalize the proposed method in the view
of design process, the design problem structure of suspension system is defined as a (hierarchical) multilevel design optimization,
and the design problem for each level is solved using the robust design optimization technique based on a meta-model. Then,
In order to verify the proposed design concept, it designed suspension system. For the vehicle level, 44 random variables
with 3% of coefficient of variance (COV) were selected and the proposed design process solved the problem by using only 88
exact analyses that included 49 analyses for the initial meta-model and 39 analyses for SAO. For the suspension level, 54
random variables with 10% of COV were selected and the optimal designs solved the problem by using only 168 exact analyses
for the front suspension system. Furthermore, 73 random variables with 10% of COV were selected and optimal designs solved
the problem by using only 252 exact analyses for the rear suspension system. In order to compare the vehicle dynamic performance
between the optimal design model and the initial design model, the ride comfort and the handling stability was analyzed and
found to be improved by 16% and by 37%, respectively. This result proves that the suggested design method of suspension system
is effective and systematic. 相似文献
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以G319瑞金至兴国(兴国段)改线工程两阶段设计为例,探索路线沿自然冲沟布设,路基占用自然冲沟的设计方案,合理布置总体排水系统,并计算分析确定排水系统各组成体系结构尺寸,同时设计相应的施工方案.为今后类似项目的设计提供完整的设计思路. 相似文献
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以沥青混凝土搅拌设备计算机控制系统为对象,在分析控制系统输入输出信号的基础上,讨论了控制系统构成的总体设计和程序设计,给出了系统主要控制模块的程序流程图。所设计系统的调试与实际运行结果表明,该控制系统的程序设计是合理有效的。 相似文献