| 摘要 |
<p>PURPOSE:To make such an accident, as being caused by entwining chips in every part of a machine and accumulation in and around their produced spots, preventable from occurring, by installing a magnet chuck for attracting these chips produced by cutting operation immediate after their outgoing, with magnetic attraction. CONSTITUTION:Plural fixed permanent magnets 16 are set up so as to cause the same pole to be opposed to each other with an attraction pole 17 held in between. In addition, plural movable permanent magnets 19 are attached onto a movable member 18. A magnet chuck 14, simultaneously with rotation of the movable member 18 as far as 180 deg., is able to turn chip suction force in the attraction pole 17 on or off as a magnetic pole of the movable permanent magnet 19 is turned over. Therefore, a curled long chip to be produced by cutting a work being held by a spindle 2 is attracted by the magnet chuck 14 owing to magnetic attraction. In addition, after cutting operation on the work 9 is over, a bracket 11 and the magnet chuck 14 are retracted by actuation of a pneumatic cylinder 24.</p> |
