Error Compensation Technology of Sinumerik 840D
Using error compensation technology of CNC system can improve the machining accuracy of the machine tool without investing more cost.Siemens Sinumerik 840D CNC system provides several kinds of error compensation technologies,so as to compensate for the error of mechanical components,assembly process and environment change,etc.This paper states the reason why these errors are produced,and expounds the compensation theories and methods of backlash,screw pitch and sag in Sinumerik 840D CNC system.This paper is reference for extending error compensation technologies and improving the machining accuracy of the machine tools.