Permanent magnet synchronous motor rotor core riveting tool

The utility model provides a permanent magnet synchronous motor rotor core riveting tool comprising an upper template and a lower template which are parallel to each other, and stacked rotor punching sheets are placed between the upper template and the lower template; a guide shaft is arranged on the surface of the lower die plate, a through hole is formed in the upper die plate in a penetrating mode, and the guide shaft sequentially penetrates through a rotor punching sheet center hole and the through hole. A height limiting piece is arranged between the upper die plate and the lower die plate, and the height of the height limiting piece is matched with the preset height of the laminated rotor punching sheet. And the rivets are positioned in the rivet holes of the stacked rotor punching sheets. According to the rivet pressing device, pressure can be applied to a plurality of rivets at the same time through the upper die plate, in addition, it can be guaranteed that the compressed lengths of the rivets are th