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Spacer stacked riveted motor iron core and its manufacturing method and device dedicated to the method

A manufacturing method and iron core technology, applied in the manufacture of stator/rotor body, magnetic circuit shape/style/structure, etc., can solve the problems of reduced motor efficiency, poor shape, etc., and achieve the effect of full annealing

Active Publication Date: 2017-11-21
NINGBO HONGDA MOTOR DIE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problem that the annealing effect in the middle of the iron core caused by the current motor iron core lamination technology will be worse than the outer shape, and the motor efficiency will be reduced, a gap exists between the punched iron core sheet and the sheet, which is conducive to full annealing, And do not affect the processing of the overall iron core to the subsequent process of the spacer riveted motor core, its manufacturing method and the special device for the method

Method used

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  • Spacer stacked riveted motor iron core and its manufacturing method and device dedicated to the method
  • Spacer stacked riveted motor iron core and its manufacturing method and device dedicated to the method
  • Spacer stacked riveted motor iron core and its manufacturing method and device dedicated to the method

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Experimental program
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Effect test

Embodiment 1

[0030] Embodiment 1 The spacer stacked riveted motor iron core according to the present invention includes an iron core body, and the iron core body includes a plurality of first punching pieces 1, a plurality of second punching pieces 2 and a piece for layering The end face punching piece, the first punching piece 1 is provided with a plurality of first riveting point bosses 11 and a plurality of first riveting through holes 12, and the second punching piece 2 is provided with a plurality of second The riveting point boss 21 and a plurality of second riveting holes 22, the first riveting point boss 11 and the first riveting hole 12, the second riveting point boss 21 and the The second riveting holes 22 are alternately arranged on concentric circles with the center of the first punching piece 1 and the center of the second punching piece 2 as the center, and the first riveting point boss 11 is connected with the second riveting hole. Corresponding to the hole 22, the second ri...

Embodiment 2

[0035] Embodiment 2 The method for manufacturing the diaphragm-stacked riveted motor core described in Embodiment 1 includes the following steps:

[0036] 1) When feeding material for the first time, the central controller controls to send instructions to the first cylinder 4 and the second cylinder 5, and the first cylinder 4 and the second cylinder 5 accept the instructions to perform corresponding actions: the first cylinder 4 draws out the first pumping plate 41, The first cylinder 4 is in the state of the punching point boss, that is, the die punch of the first cylinder 4 punches out the first riveting point boss 11 on the first punching sheet 1, and the second cylinder 5 is drawn into the second pumping plate 51 at the same time , so that the second cylinder 5 is in the state of punching through holes, and the second cylinder 5 punches out the first riveting through hole 12 on the same first punching sheet 1; It is the state of punching through holes;

[0037] 2) During...

Embodiment 3

[0041]Embodiment 3 Utilize the special-purpose device that the manufacturing method described in embodiment 2 is constructed, comprise at least one group of air cylinders, conveyor belt and central controller, each group of air cylinders all comprises a first air cylinder 4 and a second air cylinder 5, wherein The cylinders of the group are arranged above the conveyor belt and arranged along the conveyor belt, and the first cylinder 4 and the second cylinder 5 are respectively equipped with corresponding first pumping plates 41 and second pumping plates 51; the die punches of the first cylinder 4 Corresponding to the position of the first riveting point boss 11 of the first punching piece 1, the die punch of the second cylinder 5 of the same group corresponds to the position of the second riveting point boss 21 of the second punching piece 2; all the first cylinders 4. The control terminals of the second cylinder 5 are respectively connected to the corresponding control termina...

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Abstract

Spacer stacked riveted motor iron core and its manufacturing method and special device for the method, the motor iron core includes a core body, and the iron core body includes a plurality of first punches, a plurality of second punches and a piece of end punching The first punching sheet and the second punching sheet are alternately riveted and superimposed; the end face punching sheet is provided with a plurality of riveted end face riveting through holes, and the end face punching sheet is riveted with the corresponding first punching sheet or the second punching sheet; The manufacturing method includes the following steps: the first cylinder and the second cylinder alternately carry out the state of punching the through hole and the state of the boss of the punching point, punching out the first punching sheet and the second punching sheet and stacking them alternately to form an iron core; The special device includes at least one group of cylinders, a conveyor belt and a central controller, each group of cylinders includes a first cylinder and a second cylinder, and the same group of cylinders is arranged above the conveyor belt and arranged along the conveyor belt. The beneficial effect of the invention is that there is a gap between the punched iron chips and the sheets, which is beneficial to sufficient annealing, and does not affect the processing of the whole iron core to the subsequent process.

Description

technical field [0001] The invention relates to a diaphragm stacked riveting type motor iron core, a manufacturing method thereof and a special device for the method. Background technique [0002] The motor iron core product is an automatic riveting product formed by punching through a multi-station progressive die, and generally adopts a 0.5mm thick cold-rolled silicon steel sheet for punching. After punching and shearing, the cold-rolled silicon steel sheet will cause punching shear stress and magnetic changes due to plastic deformation. In order to improve the efficiency of the motor, an annealing process is usually used to reduce the iron loss and improve the magnetic permeability. Whether the annealing of the motor core is sufficient also affects the performance of the motor. Usually, the lamination coefficient of the motor core is ≥ 97%. will decrease. Contents of the invention [0003] Aiming at the problem that the annealing effect in the middle of the iron core ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K1/06H02K15/02B21D22/04B21D28/26B21D39/00
Inventor 宋红杰徐建凯
Owner NINGBO HONGDA MOTOR DIE
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