铝合金电机壳加工工装研究

Research of Machining Fixture for the Aluminum Alloy Motor Shell

热挤压成型的铝合金电机壳具有重量轻、强度高、散热性能好、表面美观大方、耐腐蚀、内膛免切削等优点。由于传统的铝合金电机壳加工过程中,机壳与端盖的同心度较差,造成铝合金机壳电机运行噪声较大。根据铝合金电机壳的加工方式,设计了一种铝合金电机壳的加工工装。采用该工装能够实现一次卡装后可同时进行铝合金电机壳两个端面止口的加工,铝合金电机壳内孔同心度达到≤0.02mm,提高生产效率一倍以上,解决了铝合金电机壳电机的噪声大的问题。该工装已获得国家专利授权。

Hot extruded aluminum motor shell has the advantages of light weight, high strength, good heat radiating performance, beautiful appearance, good corrosion resistance and free of cutting inside cavity. In the traditional process of machining aluminum alloy motor shell, the poor concentricity of shell and end cover results to larger running noise of aluminum alloy shell motor. According to the processing manner of aluminum alloy shell motor, a new machining fixture for the aluminum alloy motor shell is designed and machining two end stop of the same aluminum alloy motor shell simultaneously realized, a ≤0.02 mm concentricity and more than one time of production efficiency achieved, and the noise problem of the aluminum alloy motor shell solved. The machining fixture has won a state patent authorization.