Motor core is one of the effective parts of the motor. The manufacturing process of the motor core has a great influence on the operation performance of the motor. The manufacturing process of the motor core includes two parts: punching sheet manufacturing and iron core pressing. The following is to introduce the requirements of motor core compression technology.
According to the different pressing methods, the structure of the motor core can be divided into two types: external pressure loading and internal pressure loading. Small motor core is usually external pressure installed, medium motor core can be internal pressure installed or external pressure installed.

　The advantages of the external compression process are that the motor core compression and the chassis processing can be operated independently; Easy wiring; High utilization rate of immersion and drying equipment and saving insulation paint. Its disadvantage is the need to swell the tire. The internal pressure loading motor core is in the machine seat will punch sheet overlay. One axial girdle pin and several arc bonds on the core rib of the motor are fixed so that the core of the motor does not move in a circular and axial direction. ,,
Finally, the seat is placed on the bench of the press, the motor core is pressed, the arc bond is placed, and the arc bond and the pressure ring are welded with electric welding so that the core is firmly fixed in the seat. The advantage of the internal pressing process is that there is no pressure to fill the tire, and there is no pigeon tail groove outside the punch piece, and the punching structure is relatively simple; The winding is in the seat, insulation treatment and far on time, and the disadvantage of the end is that the inner circle of the iron core must be coaxial with the stop of the seat; Inconvenient to insert lines; Insulation treatment, equipment utilization rate is low, insulation paint waste more.
When loading the iron core of the external press motor, the inner circle of the punch piece is positioned. The punch piece is superimposed on the pressure tube and 3-4 grooves are inserted into the surrounding slot. First, the pressure expands the expansion tube, so that the center of the iron is round. Then press the iron core, put the buckle into the pigeon tail groove to hold tight, and then bend the buckle at both ends, buckle the iron core end surface, so that the iron core becomes a solid whole. Finally, the pressure of the press is lifted, the tire is opened, and the iron center is taken out.
The above is the brief introduction of the motor core, hope to help you, want to know more content, please pay attention to our website.