Vibration isolation element three-direction rigidity testing device suitable for one-way loading testing machine

The invention discloses a vibration isolation element three-direction rigidity testing device suitable for a one-way loading testing machine, and relates to the field of rigidity testing equipment. The problem that an existing testing machine can only test the single rigidity of the vibration isolation element is solved, market requirements are met, and labor force is further liberated. The testing device comprises a workbench, a vibration isolation element clamping mechanism fixed on the workbench, an upper cover plate connected with an upper actuating cylinder clamp of a testing machine, and a vertical actuating mechanism and a horizontal actuating mechanism which are connected below the upper cover plate, the vertical action mechanism comprises a vertical pressing plate which is connected to the lower portion of the upper cover plate in a liftable mode. The number of the horizontal action mechanisms is two. The horizontal action mechanism comprises a supporting frame, a lead groove, a vertical sliding bloc