Research Of Parameterized Design Of Gears And Movement Emulation Analysis Based On UG

With the rapid development of computer, CAD has widely used in part design and manufacturing, but because of the commonality of CAD software, it is difficult to meet the specific needs of variable product design, so on the basis of CAD software, according to the actual situation to carry out secondary development has become an important work of modern design.As an important engineering mechanical transmission apparatus, gears have a very wide application potential because of its advantage, such as high stability and bearing loads. However, the structure of gears are very sophisticated, and design difficulties, To improve the design efficiency and increase the competitive capacity, it is very important to realize the 3-D parametric modeling of gears.This paper mainly described the following three parts. First, Based on the software Unigraphics NX, this Project makes use of UG secondary development languages offered by modules of UG/OPEN GRIP and UG/OPEN MenuScript and then realize 3-D parametric modeling of involute straight toothed spur gear, helical-spur gear and straight bevel gear. Second, to use of UG/OPEN API, VC++ technology and database technology developed a gear information database system , this system can effectively management the data among team members and workers can convenient inquiry the name of gears, materials, technical requirements and designers' name, etc. It also improves design efficiency. Third, meshing transmissions analysis of involute spur gear has carried out using UG/ MOTION to further verify the correctness of involute design, furthermore, it also provided a way of interference analysis, speed analysis of gear transmission, acceleration and force .