processing error calculating device, a processing error calculation method, processing control device and processing control method

摘要

from the processing error with a high degree of accuracy can be a is calculated by the analysis processing error calculating device I provide. When varying intermittent cutting resistance in association with the cutting occurs in the rotating tool (5) (Fy) is the rotation center of the rotary tool on the basis of the cutting force of the rotary tool (5) (Fy) (5) (C displacement of the) and (tool center displacement amount calculation unit for calculating a Ya) (42), the relative cutting edge position for calculating the relative edge positions of the blade portion with respect to the rotation center of the rotary tool (5) (C) (5a, 5b) calculating section (14), an absolute edge position of the blade portion with respect to the displacement amount of the rotation center of the rotary tool (5) (C) Based on the (Ya) and the relative edge positions the workpiece (W) (5a, 5b) an absolute edge position calculation unit for calculating (15), machined shape calculating unit for calculating a machined shape in the absolute edge position the workpiece (W) a workpiece by causing transferred to (W) and (24) , and a based on a difference between the target shape of the machined shape and the workpiece of the workpiece (W) (W), machining error calculation unit for calculating a machining error of the workpiece (W) (61) .