Manufacturing method of motor rotor with lower aluminum consumption and motor rotor

Abstract

The invention discloses a manufacturing method of a motor rotor with lower aluminum consumption and the motor rotor. The manufacturing method comprises the following steps: firstly, overlapping and pressing rotor sheets with enclosed holes into a rotor iron core; secondly, carrying out the aluminum casting on an enclosed cast-aluminum groove formed by the enclosed holes of the rotor sheets; afterthe aluminum casting, carrying out the rotary cut processing on the external diameter of the rotor iron core to process the enclosed cast-aluminum groove into an open groove. Compared with the prior art, the invention greatly reduces the aluminum consumption, lowers the manufacturing cost of motors, and improves the economic benefits of enterprises.

Description

technical field [0001] The invention relates to a processing method of a motor rotor, in particular to a processing method of a low aluminum consumption motor rotor. Background technique [0002] In the motor manufacturing industry, the manufacturing technology of motors is becoming more and more mature, and the dimensions and performance indicators of various motors have national standards. In order to improve the market competitiveness of products, all motor companies are trying their best to tap the potential of the company while ensuring that the performance of the motor remains unchanged, and work hard to save the cost of the motor to improve the economic benefits of the company. [0003] At present, the processing method of the motor rotor is generally to first die-cast the rotor punch with the opening hole, then laminate the rotor punch to form the rotor core, form an open cast aluminum groove on the rotor core, and finally put the rotor core into the cast aluminum I...

AI Technical Summary

Problems solved by technology

However, when casting aluminum, the gap between the inner diameter of the mold and the outer diameter of the rotor core becomes larger due to the wear of the mold over a long period of time

When casting aluminum, the aluminum liquid will flow out from the open slot, resulting in a phenomenon that the rotor iron core is covered with a layer of aluminum. After the casting is completed, it must be processed by turning to remove the aluminum wrapped in the outer layer, which not only increases the amount of aluminum used, but also increases The processing cost makes the production cost higher

In addition, the number of cast aluminum slots on the existing rotor is too large, and the cross-section of the cast aluminum slots is too large, which is also a factor that causes the increase in aluminum consumption.

Images