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Method for manufacturing carbon brush motor rotors

A technology of a motor rotor and a manufacturing method, which is applied to the manufacturing field of a carbon brush motor rotor, can solve the problems of low soldering work efficiency and high defect rate, and achieve the effects of improving work efficiency, yield rate and pulling force.

Active Publication Date: 2016-04-20
深圳市科美达自动化设备有限公司
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Problems solved by technology

[0002] When the existing motor rotor is manufactured, since the commutator pin is made of copper, its surface will be oxidized under natural environmental conditions to form copper oxide. In the resistance welding process, the high temperature of the commutator pin will make the copper oxide on the surface increase Thick, due to the incompatibility between copper oxide and solder, it is not conducive to the formation of good solder joints between the commutator pin and the varistor in the soldering process, the soldering efficiency is low, and the defective rate is high

Method used

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  • Method for manufacturing carbon brush motor rotors

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Embodiment Construction

[0009] Below in conjunction with specific embodiment and description accompanying drawing, the present invention will be further elaborated and described:

[0010] A manufacturing method of a carbon brush motor rotor, comprising the following steps:

[0011] S1 punching: punching selenium steel sheet or silicon steel sheet;

[0012] S2 stacking riveting: the punched selenium steel sheet or silicon steel sheet is stacked together to form a rotor through the motor shaft;

[0013] S3 coating: apply insulating varnish to the inner winding part of the rotor;

[0014] S4 install the commutator: install the commutator on the motor shaft;

[0015] S5 winding;

[0016] S6 resistance welding: resistance welding the commutator feet;

[0017] S7 Punching: Punch holes on the commutator feet;

[0018] S8 Soldering: Solder the commutator feet and the varistor.

[0019] By punching holes on the commutator feet, the oxide layer on the commutator feet is destroyed, and the metal copper is...

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Abstract

The invention discloses a method for manufacturing carbon brush motor rotors. The method comprises the following steps of contour stamping, superposed riveting, coating, commutator assembling, wire wrapping, electric resistance welding, electric resistance welding conducted on commutator feet, punching and tin soldering. By means of the method for manufacturing the carbon brush motor rotors, work efficiency of the tin soldering procedure can be improved, and the good product rate of the tin soldering procedure can be raised.

Description

technical field [0001] The present invention relates to a method for manufacturing a motor rotor, in particular, to a method for manufacturing a carbon brush motor rotor. Background technique [0002] When the existing motor rotor is manufactured, since the commutator feet are made of copper material, the surface of the commutator feet will be oxidized under natural conditions to form copper oxide. Thick, due to the incompatibility of copper oxide and solder, it is not conducive to the formation of good solder joints for commutator feet and varistors in the soldering process, and the soldering efficiency is low and the defect rate is high. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to provide a method for manufacturing a carbon brush motor rotor, which improves the work efficiency and yield of the soldering process. [0004] The technical scheme adopted in the manufacturing method of the carbon brush motor rotor disclosed by the present inve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K15/02
CPCH02K15/02
Inventor 李才
Owner 深圳市科美达自动化设备有限公司
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