Piston Ring Outer Cnc Profiling And Processing Of Cad / Cam System Developed

Piston ring is the important accessory of the engine and turning its contour is the key procedure to ensure the performance of piston ring．It has great value in economy and society that we develop the NC machining system for outer circle of piston ring to manufacture the high quality piston ring and to replace the import machine．According to piston ring contour data provlded by the CAD system,it can turn the piston ring contour by controlling the displacement of servomechanism which is controlled by the angle of servo motor．It uses the theories of velocity closed loop, dlsplacement closed loop and feed－forward control to improve the control precision of system．On the basis of theories of elastic mechanics and mathematics,the CAD system can provide the accurate data required by the NC machine system according to the calculation model and the parameters of piston ring．This system integrates the CAD／CAM technology．...