Weighing mechanism of vertical dynamic balancing machine

The invention relates to the technical field of dynamic balancing machines, and discloses a weighing mechanism of a vertical dynamic balancing machine, which comprises a base, a support frame, a horizontal positioning plate, a mounting base and a support plate, the four sides of the mounting base are fixedly provided with adjusting blocks, the horizontal positioning plate is arranged to be of a concentric-square-shaped structure, and the mounting base is located on the inner side of the horizontal positioning plate. The mounting base does not make contact with the horizontal positioning plate, and the four adjusting blocks are all located below the horizontal positioning plate; according to the invention, rapid measurement of the weight of a to-be-measured part is realized, so that the weight of a workpiece can be increased or reduced, when a dynamic balance test is continued after weighing, the jacking assembly cooperates with the adjusting block to jack up the mounting base and adjust the mounting base to a