US 9,812,239 B2
Core manufacturing device
Keita Nimura, Okazaki (JP); Naotake Kanda, Okazaki (JP); and Ryosuke Yamaguchi, Kariya (JP)
Assigned to JTEKT CORPORATION, Osaka-shi (JP)
Filed by JTEKT CORPORATION, Osaka-shi, Osaka (JP)
Filed on Jan. 14, 2015, as Appl. No. 14/596,752.
Claims priority of application No. 2014-008533 (JP), filed on Jan. 21, 2014.
Prior Publication US 2015/0206642 A1, Jul. 23, 2015
Int. Cl. B23P 19/00 (2006.01); H02K 15/00 (2006.01); H01F 13/00 (2006.01); H02K 15/03 (2006.01)
CPC H01F 13/003 (2013.01) [H02K 15/03 (2013.01); Y10T 29/49012 (2015.01); Y10T 29/53143 (2015.01)] 6 Claims
OG exemplary drawing
 
1. A manufacturing device for a core, comprising:
a magnetization device that magnetizes magnet raw materials before being magnetized provided in the core to turn the magnet raw materials before being magnetized into permanent magnets;
a detachment device that detaches the core from the magnetization device; and
a mounting device that mounts a jig composed of a magnetic body or an electromagnet to the core, wherein
the jig is being mounted around the detached core when the core is detached from the magnetization device by the detachment device;
the jig is composed of a soft magnetic body;
the mounting device is configured to mount the jig to the core before the magnet raw materials are magnetized;
the detachment device is configured to detach the core together with the jig from the magnetization device;
the core is formed in a cylindrical shape, and has different magnetic poles provided in an outer peripheral portion by the permanent magnets and arranged alternately at equiangular intervals along a circumferential direction;
the jig has magnetic barriers arranged at the equiangular intervals in the circumferential direction;
the mounting device mounts the jig to the core such that the magnetic barriers are disposed at positions corresponding to boundary lines between different magnetic poles of the core that are adjacent in the circumferential direction; and
the detachment device is configured to detach the core together with the jig from the magnetization device after removing the magnetic barriers from the positions corresponding to the boundary lines between the magnetic poles.