Casting mold for rear end cover of motor

The utility model relates to the technical field of motor rear end cover casting, and discloses a casting mold for a motor rear end cover, two toothed plates are symmetrically and fixedly arranged on the inner wall of an annular plate, a flywheel is movably connected with the two toothed plates respectively, a first chain wheel is fixedly sleeved on an annular block, and a second chain wheel is fixedly sleeved on the annular block. And second chain wheels are fixedly installed at the top ends of the threaded rods, the first chain wheel and the two second chain wheels are sleeved with the same chain, square blocks are fixedly installed at the bottom ends of the limiting rods, the square blocks are movably connected with the inner walls of the square grooves, and the limiting rods are slidably sleeved with extension springs. When the casting mold for the rear end cover of the motor is used, the annular plate reciprocates, vibration of casting liquid in the mold, rotation of the threaded rod and installation, cl