Cleaving method and cleaving apparatus for manufacturing a magnet piece constituting a field pole magnet body disposed in a rotating electrical machine

摘要

The cleaving method and cleaving apparatus for cleaving a magnet body provided with a coating film is a state in which a magnet body having a notch groove as a fragile portion on a lower surface along a planned cleaving position is supported by dies as two fulcrums from below. After feeding the magnet body to the position where the fragile part is arranged between both fulcrums and pressing the magnet body from above the position offset from the fragile part between both fulcrum in the feed direction, the magnet body after cleaving the magnet body Then, the coating film is cut while cleaving into smaller magnet pieces after cleaving.