Metal plate punching method and metal plate punching system
US-10486219-B2 · Nov 26, 2019 · US
Method of manufacturing laminated iron core
US10040111B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10040111-B2 |
| Application number | US-201514708495-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 11, 2015 |
| Priority date | May 12, 2014 |
| Publication date | Aug 7, 2018 |
| Grant date | Aug 7, 2018 |
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- Title
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Abstract
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A method of manufacturing a laminated iron core includes performing at least two kinds of selectively-actuated punching processes by actuating respective punching units to form a plurality of iron core pieces, each of the punching units being switchable between an active state or a non-active state, and caulking and laminating the plurality of iron core pieces to manufacture the laminated iron core. The selectively-actuated punching processes are performed in one operation by selectively actuating each of the punching units between the active state and the non-active state.
First claim
Opening claim text (preview).
What is claimed is: 1. A method of manufacturing a laminated iron core, the method comprising: performing at least two kinds of selectively-actuated punching processes by actuating respective punching units to form a plurality of iron core pieces, each of the punching units being switchable between an active state or a non-active state; and caulking and laminating the plurality of iron core pieces to manufacture the laminated iron core, wherein the at least two kinds of selectively-actuated punching processes are performed in one operation by selectively actuating each of the punching units between the active state and the non-active state, each of the punching units has a punch and a die and is controlled to switch between the active state and the non-active state by moving a slide member which holds a top part of the punch, and moving of the slide member of one of the punching units is located in a lower position than moving of the slide member of another one of the punching units. 2. The method according to claim 1 , wherein the one operation includes processes performed in one station. 3. The method according to claim 1 , wherein one of the punching units punches a working part located in an inside area of the iron core piece and another one of the punching units punches a working part located in an outside area of the iron core piece.
Assignees
Inventors
Classifications
Punching blanks or articles with or without obtaining scrap (cutting nails or pins from strips or sheet material B21G3/26); Notching · CPC title
Laminated device · CPC title
- B21D28/22Primary
Notching the peripheries of circular blanks, e.g. laminations for dynamo-electric machines · CPC title
Manufacturing of magnetic circuits made from sheets (magnetic cores made from sheets H01F27/245; soft magnetic alloys in the form of sheets H01F1/16) · CPC title
by fitting a projecting part integral with one plate in a hole of the other plate · CPC title
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- What does patent US10040111B2 cover?
- A method of manufacturing a laminated iron core includes performing at least two kinds of selectively-actuated punching processes by actuating respective punching units to form a plurality of iron core pieces, each of the punching units being switchable between an active state or a non-active state, and caulking and laminating the plurality of iron core pieces to manufacture the laminated iron …
- Who is the assignee on this patent?
- Mitsui High Tec
- What technology area does this patent fall under?
- Primary CPC classification B21D28/22. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Aug 07 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).