| 摘要 |
<p>PURPOSE:To modify deviation of the cutting position and upgrade straightness of a cut surface by transferring a blade in its axial direction in compliance with the displacement amount in the sensed axial direction of the blade and providing a control means outputting a modifying signal for modifying the displacement of the cutting position to a transfer means. CONSTITUTION:When a blade 10 is deflected because of cutting resistance or the like generated between a work 19 and an inner peripheral blade 11 and the cutting position of the work 19 by means of a cutting tool 5 is displaced in the axial direction at the time of cutting the work 19, said displacement amount is sensed by a sensing means 26. At that time, the cutting tool 5 is slide driven by the transfer means 15 in the direction modifying the deviation of cutting position in compliance with a modifying signal output from a control means 27 to a driving motor 14 of the transfer means 15. For instance, the blade 10 is deformed in the direction that the inner peripheral blade 11 is brought close to a sensor 24 to vary the distance between the blade 10 and the sensor 24 from the original distance A to the distance B, and when the displacement of the cutting position to the sensor 24 side by the distance C equivalent to the difference between the distances A and B is confirmed, the blade 10 is transferred in the direction separating from the sensor 24 to carry out the control of modifying the displacement of cutting position.</p> |
