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Flame-proof type motor punching sheet punching method and punching die

A technology of stamping and explosion-proof motors, which is applied in the field of production and processing of flame-proof motors, can solve problems such as difficulties in the punching process, achieve the effects of reducing centrifugal force, preventing deformation, and increasing the solid area

Pending Publication Date: 2021-07-23
NINGXIA NORTHWEST HORSE ELECTRIC MFG
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  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the market demand for a variety of low-speed direct-drive outer rotor flameproof motors is increasing. The punching diameter of this type of motor is too large and the groove shape is very dense. The manufacturing process encountered great difficulties

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  • Flame-proof type motor punching sheet punching method and punching die

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Embodiment Construction

[0024] In order to make the technical solution of the present invention easier to understand, the technical solution of the present invention will be described clearly and completely by means of specific embodiments in conjunction with the accompanying drawings.

[0025] A stamping method for a flameproof motor, comprising the following steps:

[0026] Step 1: Design the material of the mold positioning tray of the punch press for stamping flameproof electric motors from steel plate to aluminum alloy, and add weight-reducing holes on the mold positioning tray;

[0027] Step 2, design fastening bolts and flat pads on the mold positioning tray, thereby increasing the pressing area between the fastening bolts and the mould;

[0028] Step 3, adjust the pressing force of the upper and lower bolts of the mold positioning tray to avoid vibration after the outer side is deformed due to excessive intermediate pressure;

[0029] Step 4, reduce the speed to 150r / min to 200r / min when pun...

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Abstract

A flame-proof type motor punching sheet punching method comprises the following steps that the material of a die positioning tray of a punching machine for flame-proof type motor punching sheet punching is designed to be aluminum alloy instead of a steel plate, and the number of lightening holes in the die positioning tray is increased; fastening bolts and flat gaskets are designed on the die positioning tray, so that the pressing area between the fastening bolts and a die is increased; the pressing force of upper and lower bolts of the die positioning tray is adjusted to avoid the phenomenon that due to the overlarge middle pressure, the outer side can deform and then vibrate; the groove punching rotating speed is reduced; single punching of the groove profile and stator and rotor punching sheet segmentation are conducted in two working procedures, punching of the groove profile is conducted, and then segmentation is conducted; and the flame-proof type motor punching sheet punching is accomplished. The invention further provides a die for flame-proof type motor punching sheet punching. According to the flame-proof type motor punching sheet punching method and the die, the solid area of a punching sheet is increased, the punching sheet is placed on the tray more stably, and the punching sheet can be prevented from deforming in the taking and placing process. The centrifugal force in the groove profile punching process can be reduced, so that the equal indexing of the punched groove profile in the circumferential direction is ensured.

Description

technical field [0001] The invention relates to the technical field of production and processing of flameproof motors, in particular to a stamping method and stamping die for flameproof motors. Background technique [0002] At present, the market demand for a variety of low-speed direct-drive outer rotor flameproof motors is increasing. The punching diameter of this type of motor is too large and the groove shape is very dense. The manufacturing process encountered great difficulties. Contents of the invention [0003] In view of this, in order to solve the above-mentioned low-speed direct-drive outer rotor flameproof motors' groove punching and stator and rotor punching division problems, it is necessary to provide a flameproof motor punching method. [0004] It is also necessary to provide a die for stamping the explosion-proof motor sheet. [0005] A stamping method for a flameproof electric motor, comprising the following steps: [0006] Step 1: Design the material ...

Claims

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Application Information

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IPC IPC(8): B21D28/14B21D28/04B21D43/00B21D37/10
CPCB21D28/04B21D28/14B21D37/10B21D43/003
Inventor 何梅王坚任佳罗含利
Owner NINGXIA NORTHWEST HORSE ELECTRIC MFG
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