Motor stator and rotor iron core stamping progressive die adopting dispensing lamination and dispensing process

Abstract

The invention discloses a motor stator and rotor iron core stamping progressive die adopting dispensing lamination and a dispensing process, and a dispensing lamination device comprises a stamping station, a first component sizing material dispensing station, a second component sizing material dispensing station and a blanking station which are arranged on the motor stator and rotor iron core stamping progressive die, an automatic iron core punching sheet stacking mechanism is arranged below the blanking station, one of the first group of sizing material dispensing stations and the second group of sizing material dispensing stations is located above the material belt, and the other one of the first group of sizing material dispensing stations and the second group of sizing material dispensing stations is located below the material belt; a first component glue dispensing device is arranged on the first component glue dispensing station, and a second component glue dispensing device is arranged on the second component glue dispensing station; in the first component sizing material and the second component sizing material, one component sizing material is a main sizing material, and the other component sizing material is a catalyst. According to the invention, the quality and the production efficiency of motor stator and rotor iron core dispensing lamination are improved.

Description

Technical field [0001] The invention relates to the technical field of manufacturing stator and rotor cores for motors used in new energy electric vehicles and precision motor stator cores that require high motor performance. Specifically, it relates to a stamping progressive die for motor stator and rotor cores that adopts dispensing lamination and Dispensing process. Background technique [0002] The motor stator and rotor core includes the motor stator core and the motor rotor core, which are both made of silicon steel sheets (punched sheets). Silicon steel sheets are usually stamped on a punch machine using a stamping progressive die. Usually, the stamping progressive die is provided with an upper template, a lower template and a discharge plate located between the upper template and the lower template. A plurality of punches are installed on the upper template, and the corresponding position of the lower template is installed with the The die is matched with the punch...

AI Technical Summary

Problems solved by technology

[0006] First, due to the long curing time of the glue, it may cause the iron core punches to be stacked in the tightening ring and have not yet been cured, resulting in deformation of the iron core after discharge, which affects the quality of the iron core dispensing and stacking

If the speed of stamping is artificially slowed down to wait for the glue to fully solidify before the core is discharged from the tightening ring, the efficiency of stamping production will be greatly reduced

[0007] The second is that the glue supply system of the existing glue dispensing device adopts pneumatic glue supply, which easily causes the air pressure in the glue dispensing process to be unstable, so that it is difficult to control the glue dispensing amount when dispensing the iron core. Inadequate bonding will affect the assembly and use of the iron core; too much glue will cause the glue to overflow easily and be difficult to clean. Magnetic properties

[0008] The third is that the glue inlet channel and nozzle (dispensing outlet) on the dispensing device are easy to block or pollute during use. After the blockage or pollution, its cleaning and maintenance are more troublesome, which also affects the efficiency of stamping production

[0009] Fourth, there may be oil stains on the surface of the sheet metal used to produce iron core punching sheets. In addition, when the sheet metal passes through the progressive die of the punch press, the lubricating oil on the punch press and the progressive die may contaminate the surface of the sheet metal, which will cause Reduce the firmness of the bond after lamination of iron core punching sheets, thereby reducing the quality of the iron core

[0010] Fifth, the ambient temperature of the stamping workshop used to manufacture the iron core will change, especially in the severe cold winter, the curing speed of the glue may slow down due to the low temperature, which will greatly reduce the efficiency of stamping production and may affect the curing process. strength

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