Rotor core manufacturing method and rotor core manufacturing system
AssigneeAisin Corporation
InventorsTomoko HIRAMATSU, Tomoi KOJIMA
Life of this patent
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Abstract
This rotor core manufacturing method includes a step of moving a stacked core that remains mounted to a jig and that has a resin material injected in a magnet holding portion, from a resin injection apparatus to a curing heater apparatus that is separate from the resin injection apparatus, and a step of curing the resin material in the magnet holding portion by heating the stacked core in the curing heater apparatus.
Claims10
A rotor core manufacturing method comprising:
- a step of preparing a stacked core in which a plurality of electrical steel sheets is stacked together and that has a magnet holding portion extending in a stack direction of the plurality of electrical steel sheets;
- a step of placing a permanent magnet in the magnet holding portion;
- a step of mounting the stacked core to a jig that presses the stacked core in the stack direction;
- a step of injecting a resin material in a molten state into the magnet holding portion in a resin injection apparatus, while the stacked core remains mounted to the jig and while the permanent magnet remains inserted in the magnet holding portion;
- a step of moving the stacked core that remains mounted to the jig and that has the resin material injected in the magnet holding portion, from the resin injection apparatus to a curing heater apparatus that is separate from the resin injection apparatus;
- and
- a step of curing the resin material in the magnet holding portion, after the step of moving the stacked core to the curing heater apparatus, by heating the stacked core that remains mounted to the jig and that has the resin material injected in the magnet holding portion in the curing heater apparatus.
A system of manufacturing a rotor core provided with a stacked core in which a plurality of electrical steel sheets is stacked together and that has a magnet holding portion extending in a stack direction of the plurality of electrical steel sheets, the system comprising:
- a resin injection apparatus configured to inject a resin material in a molten state into the magnet holding portion of the stacked core, while the stacked core remains mounted to a jig that presses the stacked core in the stack direction and while a permanent magnet remains inserted in the magnet holding portion;
- a curing heater apparatus configured to cure the resin material in the magnet holding portion by heating the stacked core that remains mounted to the jig and that has the resin material injected in the magnet holding portion, and
- a moving mechanism configured to move the stacked core that remains mounted to the jig and that has the resin material injected in the magnet holding portion from the resin injection apparatus to the curing heater apparatus.
Dependencies are inferred from the claim text.