Research On Combined Machining Graphical Parameter Automatic Programming System

Multifunctional combined machining numerical control machine has many kinds of processing function with turning, milling, the gear processing and so on. Hobbing is generating method.This paper researches on composite machining graphical parameter automatic programming system on the basis of multifunctional combined machining numerical control machine.To start with hobbing,exploitation combined machining graphical parameter automatic programming system.First of all,according to the function of multifunctional combined machining numerical control machine and the basic idea of automatic programming,this paper design structure chart,the technics software module and technics expert of gear of composite machining graphical parameter automatic programming system,and analyse the technics of hobbing including the basic parameters of hobbing,the technics parameters,hobbing cutter parameters and so on.Then, establish mathematical model of involute gear and non-circular gears,the mathematical model of the gear and the non-circular gear hobbing and the the tool setting coordinate of Non-circular gear of hobbing on the basis of hobbing machine center with five coordinated axes and synchronous control ways.Use secondary development tools that Pro/Toolkit and VC++ to achieve the spur gear,helical gear,bevel gear,worm,turbine,internal gear parametric design on the basis of three-dimensional modeling software Pro/E, and discuss arc length top curve and pressure angleto achieve parametric design of Non-circular gear.At last, this paper researches on automatic programming, the arithmetic of post-processing of revolving workbench with five coordinate.Study on the idea of object oriented programming to exploitation composite machining graphical parameter automatic programming system.Introduce to gear milling machining based on MasterCAM.By the various processing settings to create gear tool paths and simulatethe tool process simulation.By the analysis of post-process,ultimately to generate post-processing procedures which NC machine tool needs,to achieve spur gear and ellipse gear automatic programming.