The traditional machining method of micro motor shell end face: turning method is only suitable for micro electric shell with larger wall thickness and rigidity; ring cutting method with movable punch or concave die can cut the end face smooth and has high dimensional accuracy, but the die structure is complex and the manufacturing cost is high; if the common blanking method is used, the section is rough, with roughness of 6.3-12.5um, and it is not As the assembly datum plane of micromotor, CS7 can not guarantee the assembly accuracy because of its straightness, certain slope and burr. With smooth blanking, the surface roughness can reach 0.4-1.6um, and the dimensional accuracy of workpiece can reach t8-t11. Therefore, according to the principle of smooth blanking, a set of clean blanking die combined with drawing process is designed in this paper.



As a short-circuit single turn secondary coil, the motor shell manufacturer heats the motor shell through eddy current inside the high current motor shell under the condition of low communication voltage. Relying on the energy of these eddy currents to reach the heating intention, a lot of heat is generated. At room temperature and the yoke itself. However, it is different from the bearing heater, especially the aluminum shell of the motor, which has the characteristics of fast heat dissipation, thin shell, and difficult heating of aluminum material. Therefore, the aluminum alloy motor shell heater can quickly heat the motor aluminum shell and water pump shell, and the micro electric shell body expands with the same amount of heat. It is satisfied with the installation of the stator interference heat sleeve. It has the advantages of fast heating, time saving, power saving and fast operation.



Inspection standard for micro motor housing:

1. The appearance is uniform in color.

2. Appearance no cut, cut flowers, big point, rupture, logo to be correct.

3. The tightness should not exceed 0.5cm.

4. No broken feet.

5. Check whether the accessory package is complete and in good condition.

6. The same model should be unified, if there are different logo to reflect.

7. Whether the number keys are accurate. No disorder order, no skew, good light transmittance.



Zhejiang Taixing Electromechanical Technology Co., Ltd. has been focusing on the R & D, production and sales of motor shell, aluminum motor shell, vertical motor shell, horizontal motor shell, aluminum die-casting motor shell, aluminum stretching motor shell, with complete categories, quality and quantity, which is trustworthy, welcome to inquire.