The Development Of Automatic Modeling And Simulation System On Cold Rolling Process Of Spline And Thread

With the rapid development of mechanical manufacturing in China, shaft parts (splines, threads) with high strength and high precision are increasingly demanded. Manufacturing shaft parts through the non-cutting cold rolling forming technology is attracting more and more attention and widely used in the manufacture. However,researches on automatic modeling and simulation system of cold rolling forming are relatively fewer,The use of a common modeling and simulation system design in enterprises need some time.If enterprises can develop their products for the parametric automatic modeling and simulation system, the use of the system designer simply prompted to enter the parameters in order to quickly design a multi-species,multi-standard products, while promoting Technology research and analysis, will greatly improve the efficiency of product design and shorten the product design cycle.The development, based on the theories of spline and thread cold rolling processes, create automatic modeling system,generate spline and thread models using parametric method by redeveloping the Unigraph,develop engineering drawing autodrft application programming modules,design spline and thread Database Management System by ODBC;finish the simulation system, realize parameter numerical simulation of cold rolling manufacture is obtained by redeveloping the ANSYS;at the meantime, based on the technology of computer supported cooperative work,run a spline simulation work by spline automatic modeling and simulation system. All the above are compressed into parameter revising and numerical simulation system of shaft parts cold rolling, which could realize the functions of theoretical calculation, roller design, numerical simulation and precessing parameters revising of rolling manufacture of shaft parts. The automatic modeling and simulation can provide theoretical basis with parameter revising and numerical simulation system of forming of shaft parts cold rolling. Problems in manufacture could be predicted by this system; manufacture advice and revised processing parameter for practical production can be proposed and provided. The theories could be applied in production directly. The system makes it possible that computers guide manufacturing shaft parts through cold rolling and motivates the techniques of shaft parts manufacture develop greatly toward computer integration manufacture.