Research And Application Of Key Techniques Of CAD System Of Raising Machine

Nowadays, the market's requirement of raising machine has been developing in the field of multi-categories, rapidity, low cost and high reliability. However, the enterprises mainly design it in traditional methods at home and abroad, copying design is the main methods for most enterprises. The methods of designing and analyzing are out of date, and the methods can't meet the needs of rapid development of enterprises. Through the systemic analysis of the various existing raising machines in Haining Machinery Factory, the methods of computer aided design of raising machine are studied, including parametric variant design of assembly model, development of open-end standard database in the environment of Pro/Engineer software, computer aided design of typical mechanical products, parametric design of main parts, and an computer aided design platform for raising machine is developed .and it offers the possibilities of rapid designing of raising machine and improving the competition of this factory in printing and dyeing machinery of textile industry.Firstly, to solve the problem of structure variant of drum in the serialization design of raising machine, parametric variant design of assembly body, based on the theory and methods of variant design is designed, combine parametric technology with variant design technology, parametric variant design theory of assembly body based on local Coordinate System is presented. And then take drum, typical part of raising machine as an example, to demonstrate how to use this method to solve the problem of parametric design of assembly body.Secondly, the methods of serialization design of mechanical products are discussed, system framework of standard database of raising machine in the environment of Pro/E software and the methods of guide module computer aided design of mechanical products are presented. And then the realization methods in Pro/Engineer are demonstrated.Thirdly, the parametric design methods of main parts, the definition and realization of the interrelation are studied. Through the re-development of Pro/E software, the integration between the parametric design of main parts and analysis module of typical parts of raising machine are realized.Finally, the function, system framework and realization methods of computer aided design platform for raising machine are studied. And then take 3D software Pro/E as re-developing platform , a computer aided design system for raising machine was developed with Vc++6.0.