| 摘要 |
PURPOSE:To provide a controller of a crankshaft miller, which can automatically and promptly carry out correction of machining accuracy in relation to the thermal displacement of a machine main body. CONSTITUTION:A thermometer 16 for detecting the temperature in the vicinity of a bearing 10 of an internal edge milling cutter 11 is provided, and a temperature correction data for correcting a basic processing data is calculated based on the temperature detected by the thermometer 16. The correction data relating to the diameter of circular orbit drawn by the center of the internal edge milling cutter 11 is calculated by calculating magnification in relation to the basic machining data, and the correction data relating to the center point of the circular locus is calculated by calculating the deviation in relation to the basic machining data. |
