SMC iron core is one of the effective parts of the motor. The SMC iron core manufacturing process has a great influence on the operation performance of the motor. The punching of the punch piece belongs to the stamping process. The following is a description of the technical requirements of the motor core punch.
In the motor industry, the fixed and rotor iron cores are one of the important parts of the electric machine. The static pressure of the fixed rotor iron core is an important step in the use process. The following is a description of the process preparation for the superposition:
1. Punches have folding, broken teeth, cracks, must be removed; Punching film damage, paint film thickness seriously uneven must be removed. The surface is clean after the use of oil.
2. Use plastic rods to sort the groove after overloading. Check that each groove must pass with a slot bar, and that individual passable local files are not passed.
3. The pressure between rotor blades is 2.5 to 3.0 MPa.
4. Check the quality of the pressure sheet, stator ventilation slot sheet and stamping spot welding, and return it if it is soldered.
5. Check related equipment and equipment should be in good condition.
6. When laminated, the thrust burr direction is the same.

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1, the size of the bad to meet the requirements of the pattern. There are many sizes on the iron core of the motor, but it can be attributed to internal dimensions and fit dimensions. Internal dimensions such as grooves, ventilation holes, marking slots, and various diameters on magnetic electrode punching sheets, etc., generally use the H10 accuracy level, and higher accuracy is unnecessary. The error caused by the irregular wall and hole wall after installation is much greater than the error of the punch itself. The size of the match, such as the outer circle of the iron center, the inner circle of the iron center, and the size of the shaft hole to be matched with other parts, the accuracy level is related to the processing process used.
2, the shape deviation must meet the requirements of the pattern. The coaxiality of the inner circle and the outer circle of the stator punch shall not be too poor. When the inner and outer rounds of the punch sheet are made at the same time, the coaxial degree is 0.04-0 .06 mm. When the inner and outer parts of the punch are made in two parts, the coaxial degree can be appropriately relaxed.
3, the alveolar distribution should be uniform. The degree of slot must be accurate, and the difference between the maximum and the minimum tooth width should meet the requirements of the pattern. Otherwise, it will lead to magnetic imbalance.
4, punch thin and uniform, the surface is almost whole, punch cut and the burr on the small. The burr on the small and medium sized motor stator punch shall not be greater than 0.05 mm. The burr of the cast aluminum rotor punch should not be dry 0.1 mm.
The insulating layer on the surface of the punch sheet should be thin and uniform, with good dielectric strength, oil resistance and moisture resistance.
The above is about the introduction of the motor core, I hope to make you satisfied. Our website will provide you with the latest content every day to let you know more information and thank you for your support.