The Establishment of the Siemens840D Numerical Control System Workpiece Coordinate System
The CNC machining center processes the workpiece through the NC program written by the user.The machining coordinates of the NC program need to determine the zero of the workpiece coordinate system.Different NC systems have different ways to set the zero of workpiece coordinate system.This paper mainly introduces the establishment of workpiece coordinate system of Siemens 840D NC system,which is helpful for readers to understand the definition of workpiece coordinate system and programming method.