Reaction rod support fatigue life test device

The utility model discloses a reaction rod support fatigue life test device, which comprises a workbench, a first mounting plate and a motor, the first mounting plate is fixed on one side above the workbench, and the motor is fixed on one side of the first mounting plate. The fatigue life test device has the beneficial effects that the motor, the connecting shaft, the threaded shaft, the guide rod and the mounting seat are arranged, the mechanical claw I can be fixed on the mounting seat, then the motor drives the threaded shaft to rotate through the connecting shaft, so that the mounting seat drives the mechanical claw I to move along the guide rod, a fatigue life test is performed on the bracket, the operation is simple, and the test efficiency is high. The device is simple in structure and high in adjustment precision, the accuracy of a test result is improved, a pressure sensor and a warning lamp are arranged, the clamping force of the first mechanical claw and the second mechanical claw on a workpiece ca