METHOD AND DEVICE FOR BLANKING METALLIC PLATE AND METHOD FOR PRODUCING IRON CORE OF ROTARY ELECTRIC MACHINE
PROBLEM TO BE SOLVED: To provide a method and a device for blanking a metallic plate having sag and burr in the size almost equal to that when the metallic plates are blanked one by one even if the metallic plates are laminated and blanked at once.SOLUTION: The metallic plates are placed respectivel...
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Zusammenfassung: | PROBLEM TO BE SOLVED: To provide a method and a device for blanking a metallic plate having sag and burr in the size almost equal to that when the metallic plates are blanked one by one even if the metallic plates are laminated and blanked at once.SOLUTION: The metallic plates are placed respectively in a separated space between a first to n-th pairs of blanking tools, and the metallic plate placed in the separated space between the i-th (i=1-n) pair of the blanking tools is blanked, and a pushing means attached to a punch plate of the i-th pair of the blanking tools pushes the punch plate of the (i+1)-th pair of the blanking tools, and the metallic plates are sequentially blanked from the metallic plate placed in the separated space between the first pair of the blanking tools to the metallic plate placed in the separated space between the n-th pair of the blanking tools. |
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