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                          3. 新闻动态   News
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                            CNC加工中心典型支承件结构分析及优化设计

                            2015/12/22 8:35:48

                              

                            随着国民经济的飞速发展和信息技术产业的突飞猛进,对于制造行业尤其是机床行业的要求也越来越高。传?#36710;?#26426;床设计方法在设计过程中主要依靠经验设计,而且设计周期长,缺乏有效的理论依据作为指导。本文将基于拓扑优化技术,应用机床典型支承件设计方法,实现对机床关键支承件的结构分析以及优化设计,从而为后续的机床支承件结构设计?#33455;?#25552;供参考依据。 本文的主要?#33455;?#20869;容为:

                             (1)利用ANSYS软件对立柱三个典型位置工况进行结构分析,分析计算结果,?#39029;?#32467;构中薄弱部位,为优化提供依据。同时利用基于拓扑优化的结构设计方法,对立式加工中心立柱结构进行优化设计,利用HyperMesh软件对不同工况及优化目标下的立柱进?#22411;?#25169;优化,对优化结果进行有效的分析,建立立柱在不同目标下的概念模型。

                            (2)利用基于OptiStruct的结构优化设计方法,对立式加工中心立柱结构进行改进设计。设计过程中,根据主传力路径与结构分析结果,提出不同的结构改进方案,分析对比改进方案,?#39029;?#26368;优方案。然后对立柱结构进?#33455;?#32454;化设计,并将改进结构与原始结构进行结构对比分析,改进结构较原结构质?#32771;?#36731;了7.30%,综合变形减小了12.68%,一阶固有频率提高了10.13%,因此改进设计取得了良好的优化效果。

                            (3)建立立式加工中心立柱的力学模型,阐述典型工况切削力计算依据,分析立柱在各种加工况下的载荷状况以及不同位置工况的边界条件,为立柱结构分析及设计提供基础条件。 

                            (4)总结归纳出机床典型支承件的结构设计流程,通过对机床典型支承件的结构优化设计过程,验证了此流程在机床支承件设计领域的可应用性。

                            数控铣床引是在一般铣床的基础上发展起来的,两者的加工工艺基本相同,结构也有些相似,但数控铣床是靠程序控制的自动加工机床,所以其结构也与普通铣床有很大区别。

                            陕西十一选五遗漏大概多少期出的
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