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Stator iron chip notching process in torn mode

An iron core and process technology, which is applied in the field of stator iron core punching process using a tearing method, can solve problems such as waste of raw materials, and achieve the effects of saving raw materials, simple and convenient processing technology, and easy realization.

Inactive Publication Date: 2013-09-25
CHANGYING XINZHI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] During the stamping process of the steel strip, the separation groove formed by stamping in the first step will generate a certain amount of waste, and the raw materials will be wasted, so the stamping process needs to be improved

Method used

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  • Stator iron chip notching process in torn mode
  • Stator iron chip notching process in torn mode
  • Stator iron chip notching process in torn mode

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Experimental program
Comparison scheme
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Embodiment Construction

[0013] The present invention will be further described below in conjunction with accompanying drawing.

[0014] Such as figure 2 , 3 As shown, the disc-shaped steel strip enters the press after being uncoiled and leveled, and is stamped with a progressive stamping die. The first step is to punch the riveting hole 1 at the predetermined position of the steel strip, and the second step is to punch two holes on the steel strip. Row of winding slots 2, the slot holes of the two rows of winding slots are symmetrically arranged, and the slots are opposite; the third step is to cut and separate the slots of the symmetrical winding slots at both ends; the fourth step is to cut and separate the outer diameters of adjacent winding slots; the fifth The first step is torn along the outer diameter of the knife edge to form two continuous strips that are not connected to each other and have exactly the same size. image 3 For the stator core formed by winding the strip after teari...

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Abstract

The invention discloses a stator iron chip notching process in a torn mode. According to the process, a disc-shaped steel strip enters a press machine after uncoiled and leveled, and a progressive type stamping die is utilized to perform stamping on the disc-shaped steel strip. The process comprises a first step of forming rivet holes by stamping at the preset position of the steel strip; a second step of forming two rows of winding grooves by stamping on the steel strip, enabling groove holes of the two rows of winding grooves to be symmetrically arranged, and enabling notches to be opposite; a third step of cutting and separating the notches of the winding grooves symmetric at two ends; a fourth step of cutting and separating external diameters of the adjacent winding grooves; and a fifth step of tearing the steel strip along an external diameter knife edge to form two connecting strips which are not connected with each other and are completely consistent in dimension.

Description

Background technique [0001] At present, most of the stator cores of automobile generators are processed by winding. Firstly, the disc-shaped steel strip is uncoiled and leveled, and the steel strip is opened sequentially from the outer circle; then the steel strip is stamped into a groove shape, generally using a press machine through a progressive stamping die for several steps of stamping, and then divided into two Continuous strips that are not connected to each other and have exactly the same size. The stamping step occupies a very important position in the winding process of the stator core sheet. In the above process of stamping the groove shape, such as figure 1 As shown, the first step is to punch the separation groove 4' in the middle of the steel strip that needs to be divided into two; the second step is to punch the winding groove 2'; the third step is to punch the notch 21' of the winding groove, and connect them The opening of the winding slot is divided. After...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D53/88H02K15/02
Inventor 尹兴满
Owner CHANGYING XINZHI TECH CO LTD
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