CNC machining centers, which process parts with complex shapes, many processes and high precision requirements, need to use a few or dozen tools or even more.
Since the diameter and length of each tool are different, it is necessary to introduce the tool compensation function after determining the zero point of the workpiece coordinate system for the CNC machined parts to ensure that each tool is lowered to the correct height and The correct tool path is used for cutting.
The tool compensation for CNC machining can be divided into tool length compensation and tool radius compensation. Length compensation refers to the compensation of the axial direction of the spindle, that is, the axial compensation of the milling cutter, and the radial compensation of the milling cutter, that is, the diameter of each milling cutter is different, and the compensation in the diameter direction is called radius compensation.
Among them, the meaning of tool radius compensation of CNC machining is as follows:
The CNC machining center treats the tool as a point for path movement when the program is running. If the CNC machining tool radius compensation function is not used, the path length of the tool axis and the milled edge length on the workpiece during processing are different, which does not meet the requirements of the drawing size.