| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a blade tool contact detecting device capable of shortening detecting time of a contact position of a blade tool by increasing speed for bringing the blade tool close to an opposite member without imparting damage to bearings. <P>SOLUTION: A position where the blade tool 81 is in contact with the opposite member is detected when pre-load P of the bearings 30 and 40 is made as reference pre-load P0 by using detecting values by displacement sensors 201 and 202 when the blade tool 81 is brought into contact with the opposite member in a state in which the pre-load P of the bearings 30 and 40 is made lower than the reference pre-load P0 by a pre-load adjusting means. <P>COPYRIGHT: (C)2012,JPO&INPIT |
