What is the tool setting principle of NC milling machine?

NC milling machine refers to the NC machine without tool magazine. The NC milling machine with tool magazine is also called machining center. The machining steps are mainly process analysis, mathematical calculation, programming and simulation, tool setting, trial cutting, formal machining and so on. Among them, tool setting is an important link to ensure the machining quality of NC milling machine, and its accuracy directly affects the machining accuracy of parts.

CNC milling machine coordinate system is divided into machine tool coordinate system and mechanical coordinate system. Machine tool coordinate system is a coordinate system established with machine tool reference point as coordinate origin, and mechanical coordinate value is an important basis for judging tool position. For CNC milling machine, because the workpiece origin is a "moving" point, only by determining the mechanical coordinate value of the workpiece origin can the programming be accurately applied to the machining of CNC milling machine. The determination of the mechanical coordinate value of the workpiece origin needs to be realized by tool setting.

The above is the tool setting principle of NC milling machine. I hope it will help you.