Unlock instant, AI-driven research and patent intelligence for your innovation.

Device for manufacturing laminated iron core and method for manufacturing laminated iron core

A technology of stacking iron cores and iron cores, which is applied in the field of manufacturing devices for laminated iron cores, can solve problems such as easy damage and increase maintenance costs, and achieve low-cost effects

Active Publication Date: 2021-03-05
MITSUI HIGH TEC INC
View PDF6 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the protrusion has a relatively complicated shape such as a concavo-convex shape, the first part tends to be relatively easily damaged
When the first part is damaged, the entire punch including the second part needs to be replaced, which may increase maintenance costs

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Device for manufacturing laminated iron core and method for manufacturing laminated iron core
  • Device for manufacturing laminated iron core and method for manufacturing laminated iron core
  • Device for manufacturing laminated iron core and method for manufacturing laminated iron core

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0144] Example 1: An example of a manufacturing apparatus (100) of a laminated iron core may be configured to punch out a plurality of stamped parts (W) from a metal plate (MS), and to stack the plurality of stamped parts while rotating them , the plurality of punched parts (W) have a ring shape, and have M (M is a natural number greater than 1) protrusions (Wb) provided on the inner or outer periphery thereof. An example of the manufacturing apparatus (100) of a laminated iron core may include a punch unit for forming protrusions and N auxiliary punches (P3), the punch unit including N (is a natural number greater than M) punches as a group. head (P4). The N auxiliary punches (P3) may be configured such that (N-M) auxiliary punches (P3) selected from the N auxiliary punches (P3) perform the metal plate (MS) from the N punches (P4) Invalid machining for invalidating the machining of the selected (N-M) punches (P4). (N-M) means subtracting M from N, and may alternatively be d...

example 2

[0145] Example 2: In the device (100) according to Example 1, the punch unit may be arranged on the downstream side of the N auxiliary punches (P3). In this case, first, the metal plate is subjected to waste processing with (N-M) auxiliary punches, and then protrusions are formed on the metal plate by the N punches. Therefore, the punch does not contact the metal sheet at the portion where ineffective machining has been performed. Therefore, compared with the case where N protrusions are formed with N punches and then (N-M) protrusions are subjected to wasteful processing (stamping) by (N-M) auxiliary punches, scrap is less likely to be generated, and less likely to be generated. Burrs may form on the metal plate. As a result, a laminated core can be formed with higher quality.

example 3

[0146] Example 3: In the device (100) according to example 1 or example 2, the punch unit may comprise six or eight punches (P4). According to this example, the device may comprise the same number of auxiliary punches as the number of punches comprised in the punch unit. Therefore, even if the number of punches included in the punch unit increases, the number of auxiliary punches does not exceed the number of punches. Therefore, the configuration of the device is simplified, making it possible to reduce the manufacturing cost of the device.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A device for manufacturing a laminated iron core includes: a punch unit configured to form protrusions, and including N number of punches as a set, the N being a natural number larger than M; and N number of auxiliary punches. The N number of auxiliary punches are configured such that L number of auxiliary punches selected from the N number of auxiliary punches performs a nullification processingon a metal sheet, the nullification processing being configured to nullify a processing with the L number of punches among the N number of punches, the L being the natural number that is obtained by subtracting the M from the N. According to the above configurations, for example, since a processing position with the plurality of punches is limited in one position, a positional accuracy of protrusions formed in punched members with the plurality of punches is improved.

Description

technical field [0001] The present disclosure relates to a manufacturing device of a laminated iron core and a manufacturing method of a laminated iron core. Background technique [0002] Patent document JP2018-007530A discloses a method of manufacturing a laminated iron core for a rotor, in which belt-shaped metal plates are intermittently conveyed, an inner diameter area is punched from each metal plate, and a plurality of shaft holes provided with key protrusions are formed such that the protrusions Facing at different angles; separately punching outer diameter regions including the respective shaft holes from a metal plate to form a plurality of punched parts; and laminating the plurality of punched parts while being rotated so that the protrusions overlap each other. [0003] According to the method described in the patent document JP2018-007530A, in order to form a plurality of shaft holes so that the protrusions respectively face different angles, a plurality of punch...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B21D22/04B21D28/02B21D35/00B21D37/08H02K15/02
CPCB21D22/04B21D28/02B21D37/08B21D35/002H02K15/02B21D28/22H02K15/03H02K1/276H02K2201/09H02K15/022H02K1/146B21D28/04B21D28/06B21D28/14B21D28/16B21D28/20
Inventor 丸山尊嗣
Owner MITSUI HIGH TEC INC