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

摘要

Providing a machining error calculation unit which can be calculated by analyzing the machining errors more accurately. When varying intermittent cutting resistance in accordance with the cutting occurs 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 amount of displacement) and (tool center displacement amount calculation unit for calculating a Ya) (42), the relative edge positions for calculating the relative edge positions of the blade portion to the rotation center of the rotary tool (5) (C) (5a, 5b) a calculation unit (14), the absolute position of the blade edge portion with respect to displacement of the rotation center of the rotary tool (5) (C) based on the (Ya) and the relative edge position the workpiece (W) (5a, 5b) an absolute edge position calculation unit for calculating (15) machined shape calculating unit for calculating the machined shape of the absolute edge position the workpiece (W) the workpiece by to transfer on (W) and (24) , and a based on the difference between the target shape of the machined shape and the workpiece of the workpiece (W) (W), machining error calculating unit for calculating a machining error of the workpiece (W) (61) . [Selection Figure] Figure 7