Method for manufacturing band-shaped stator core sheets and die apparatus used therefor

A band-shaped stator and a manufacturing method technology, applied in the field of mold devices, manufacturing methods and mold devices used therefor, capable of solving problems such as the separation and embedding of strip-shaped core pieces 95 which are difficult to separate from each other

Active Publication Date: 2015-01-21
MITSUI HIGH TEC INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] In addition, when the front end of the magnetic pole piece 96 and the inner periphery of the yoke piece 97 are sheared within the elastic limit of the magnetic strip 98, there may be cases where the front end of the magnetic pole piece 96 tends to recover due to the tendency of the magnetic pole piece 96 to recover. Possibility of fitting into the inner circu...

Method used

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  • Method for manufacturing band-shaped stator core sheets and die apparatus used therefor
  • Method for manufacturing band-shaped stator core sheets and die apparatus used therefor
  • Method for manufacturing band-shaped stator core sheets and die apparatus used therefor

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Embodiment Construction

[0059] Next, referring to the attached drawings, the embodiment of the present invention will be described for understanding of the present invention.

[0060] Such as figure 1 As shown, the method for manufacturing a strip-shaped stator core sheet according to an embodiment of the present invention includes first and second strip-shaped stator core sheets (hereinafter also simply referred to as strip-shaped core sheets) 10 and 11, and the strip-shaped The magnetic pole piece parts 12 and 13 of the core pieces 10 and 11 are discharged on the magnetic strip 14 in the meshed state, and the strip-shaped core pieces 10 and 11 are separated from the magnetic strip 14 by press working. Forming process, slit punching process, shearing process, straightening process and separation process. Next, it will be described in detail.

[0061] (preparation process)

[0062] The first and second strip-shaped core pieces 10 and 11 are laid out on a magnetic strip 14 made of an electromagnet...

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Abstract

Provided are a method for manufacturing band-shaped stator core sheets, capable of efficiently separating the band-shaped stator core sheets having engaged magnetic pole pieces, and a die apparatus used therefor. The method comprises placing tips of magnetic pole pieces 12, 13 of first and second band-shaped stator core sheets 10, 11 on inner peripheries of yoke pieces 16, 15, a slot punching step for forming gaps of the magnetic pole pieces 12, 13, a shear-cutting step for cutting the tips of the magnetic pole pieces 12, 13 from the inner peripheries of the yoke pieces 16, 15, respectively, a correction step for returning the magnetic pole pieces 12, 13 bent by the shear-cutting step to their original states, and a separation step for separating the first and second band-shaped stator core sheets 10, 11 with the magnetic pole pieces 12, 13 pressed back by the correction step.

Description

technical field [0001] The present invention relates to a method for manufacturing a strip-shaped stator core sheet used for manufacturing a laminated core and a mold device used therefor, and more specifically, to a method for manufacturing a laminated body for forming a laminated core by winding it in a spiral shape. A method of manufacturing strip-shaped stator core laminations and a mold arrangement therefor. Background technique [0002] In the past, such as Figure 8 As shown in (A), there is a laminated core (for example, See Patent Document 1). When forming the strip-shaped core sheet 90, as Figure 8 As shown in (B), the two strip-shaped core pieces 90 are discharged onto the magnetic bar 92 with the magnetic pole pieces 91 engaged, and punched to form, thereby improving the yield of the material. [0003] However, if Figure 8 As shown in (B), since the two strip-shaped core pieces 90 are discharged on the magnetic bar 92 into the front end of each magnetic pole ...

Claims

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Application Information

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IPC IPC(8): H02K15/02
CPCH02K15/024H02K15/026Y10T29/49009Y10T29/53161
Inventor 丰丸阳平宗冈秀策甲野善治
Owner MITSUI HIGH TEC INC
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