Research And Development, Of The Turbine Blade Cnc Belt Grinder Automatic Programming System

Blade i s seen a s one key part o f s team turbine. Capabil i t y and eff ic iency o f Steamturbine depend on design and machining of blade surface. Gener a l ly, the mater i a l ofs team turbine blade is s t a inless steel , and i ts surface is complex free surface. At thepresent t ime in china , t h e final process of machining the sur f a c e is t o burnish and polishby manpower which i s or iginal , inefficient , and t h e precision can not be assured. Bladegrinding using the CNC Steam Turbine blade Belt Grinding Machine is urgent lydemanded in the steam turbine manufacturing.CNC auto-programming system i s an important part o f t h e CAD/CAM technology,and is a core technology in the CNC machining equipment s , which influence t he exer t ionof the CNC machining equipments'function and i ts efficiency. The blade belt CNCGr inding auto-programming system in thi s thesi s an important par t o f the r esearch anddevelopment of five axes linkage CNC Steam Turbine blade Belt Grinding Machine forelectromechanical g raduate school of Yang Zhou universi ty。In this thesi s , i n t e rms o fthi s Machine's characte r i stics, mainly work on the research of est abl i shing blade bel tgr inding non-interference cut ter's t r ack under UG environment by UG/Open and VC++6.0, and at last ful f i ll a Steam Turbine blade CNC belt grinding machineauto-programming original system. The main contents of the thesis are as follows:First of all , search out the non- interference grind cut ter's minimal radius, supplya measure for the user to establish the contact wheel's radius.Under UG environment, slice the three-dimensional model directly by randomsection plane method ,according to the machining precision ,work out the dis tancebetween two cl-path and CC-Point s tep ,blade grinding cc-poi n t , CL-Data and cutteraxes vector, fulfill the track of blade Belt grinding CNC machining cutter.Check out the CL-Data using g r inding interference, adjust t h e cutte r axes vectorand CL-Da ta to eliminate grinding int e r ference, and finally achieve the blade bel tgrinding non-interference cutter's track.Final ly, according to the moving characte ristics of the CNC Steam Turbine bladeBelt Grinding Machine , and the machining technical requirement of CNC system andblade bel t gr inding, work out a profes s ional post processor programmer, est abl i sh aCNC machining programmer for this machine.