基于NX专用夹具三维模型库的优化设计

摘要

Fixture designing and manufacturing occupy the core position in mechanical products manufacturing. The paper focuses on optimal design of special fixture designing system based on NX platform. Through establishing Auto CAD, two dimensional fixture parameter diagram in NX platform and three dimensional models, the designing system sets up functional modules of special fixture designing system. By using UG/Open API, UG/Open Menu script modules in NX software, the designing system creats 3D model dialog box of different sections of special fixture, and sets up SQL server data base. According to 3D model characteristics, the system develops corresponding process, designs user interface in VS2010, in order to complete 3D model base of special fixture development system. The paper, taking V-shaped module of special fixture as an example, verifies the optimized design function and applying reliability of 3D model based of special fixture system.%夹具的设计与制造在机械产品制造中占有核心地位。文章根据发展的需求，研究开发基于NX平台的专用夹具设计系统的优化设计。该系统设计主要是通过建立AutoCAD、NX的二维夹具参数图及三维模型，创建专用夹具模型设计系统各功能模块，利用NX软件中的UG/Open API、UG/Open Menu Script模块，设计专用夹具各部件的三维模型对话框，创建SQL Server数据库，依据三维模型特征信息，在VS 2010环境下开发相应流程，编写程序，设计用户界面，完成专用夹具三维模型库系统开发。以专用具体中的V型块为例，验证了专用夹具三维模型库系统的优化设计功能和应用可靠性。