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Precise 3D Parametric Modeling for Cylindrical Helical Gear Based on Protoolkit

  

  1. School of Mechatronic Engineering, Southwest Petroleum University, Chengdu Sichuan 610500, China
  • Online:2017-04-30 Published:2017-04-28

Abstract: In CAD/CAM/CAE, the three-dimensional modeling of mechanical products is the key
foundation, its precision and quality determine the quality of the other follow-up design, analysis,
manufacturing and other processes. In this paper discussed are the cylindrical gear in a helical gear
tooth profile surface, accurate expression, generation method in the three-dimensional CAD software
Pro/Engineer and in Pro/Engineer to C language interface Protoolkit, form and structure
characteristics of helical gear expression in Pro/Engineer, operation, treatment function and
application development methods. And taking this as an example, a 3D parametric design system of
cylindrical helical gear is designed.

 

Key words: cylindrical helical gear, involute helicoid, 3D parametric design, features, 2nd
development for Pro/Engineer