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US 2013/0239378 A1Published application
Rotor manufacturing apparatus, rotor manufacturing method, and permanent-magnet positioning method
AssigneeKabushiki Kaisha Yaskawa Denki
InventorsYasufumi KUROIWA, Kanta YAMAGUCHI
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Abstract
A rotor manufacturing apparatus includes a pusher and multiple blades. The pusher presses multiple magnets that are temporarily attached to a rotor core and arranged side by side in a circumferential direction of the rotor core from an outer side in a radial direction of the rotor core. The multiple blades are individually inserted into gaps between the magnets pressed by the pusher.
Claims9
A rotor manufacturing apparatus comprising:
- a pressing portion that presses a plurality of permanent magnets that are temporarily attached to a rotor core and arranged side by side in a circumferential direction of the rotor core from an outer side in a radial direction of the rotor core;
- and
- a plurality of blade portions individually inserted into gaps between the permanent magnets pressed by the pressing portion.
A rotor manufacturing method comprising:
- a first pressing step of pressing a plurality of permanent magnets temporarily attached to a rotor core and arranged side by side in a circumferential direction of the rotor core from an outer side in a radial direction of the rotor core;
- a positioning step of positioning the permanent magnets in the circumferential direction by individually inserting a plurality of blade portions into gaps between the permanent magnets that have been pressed since the pressing step so that each of the permanent magnets contacting a first one of the blade portions is moved in the circumferential direction and thus pressed against a second one of the blade portions that is adjacent to the first one of the blade portions;
- a second pressing step of further pressing the permanent magnets that have been positioned in the positioning step from an outer side in the radial direction with a pressing force that is larger than a pressing force used in the first pressing step;
- and
- a withdrawing step of withdrawing the blade portions while the permanent magnets remain in a state of being pressed which has existed since the second pressing step.
2 more elements
A permanent-magnet positioning method comprising:
- a pressing step of pressing a plurality of permanent magnets temporarily attached to a rotor core and arranged side by side in a circumferential direction of the rotor core from an outer side in a radial direction of the rotor core;
- and
- a positioning step of positioning the permanent magnets in the circumferential direction by individually inserting a plurality of blade portions into gaps between the permanent magnets that have been pressed since the pressing step so that each of the permanent magnets contacting a first one of the blade portions is moved in the circumferential direction and thus pressed against a second one of the blade portions that is adjacent to the first one of the blade portions.
Dependencies are inferred from the claim text.