摘 要
本文基于机械设计、机械原理和Solidworks三维绘图软件等相关知识与理论，通过搜集450T桥架机的相关资料、阅读相关的文献与书籍以及参考市面上的450T桥架机实体，首先对450T桥架机的主要机构零部件模型进行设计，其次利用Solidworks三维绘图软件将设计好的零部件模型进行零件建模，然后将建好的所有零部件模型进行装配设计，得到相应的装配体模最后对重要的零部件进行应力分析。
 
关键字：450T桥架机，Solidworks，零件建模，装配设计，应力分析

     ABSTRACT
This paper is based on the machinery design and machinery principle and the 3d drawing software and related knowledge and theory, by collecting relevant data of sewing machine and reading the related literature books and referring to the sewing machine in the tailor shop, first of all, design the main parts institutional model of the sewing machine, secondly use the Solidworks 3D drawing software to conduct the part modeling which was designed well, and  then conduct assembly design which the parts was built, get the corresponding assembly model, finally conduct movement simulation to the corresponding assembly model.
 
Key Words: sewing machine, Solidworks, part modeling ,assembly design, movement simulation