The invention discloses a
pressure sensing device arranged on a full-automatic pitching
machine, which is characterized in that the
pressure sensing device comprises a
metal sensor and a gravity telescopic rod
assembly, the
metal sensor is positioned in a ball support base, the gravity telescopic rod
assembly is positioned in a ball tree, the ball tree is fixed on the ball support base, and when the top end surface of the ball tree loads a ball body, the gravity telescopic rod
assembly is fixed on the ball support base. Only the telescopic rod moves downwards under the
gravity effect of the ball, the
metal head penetrates through the through hole in the platform face of the ball support base to enter the sensing range of the metal sensor, the gravity of the telescopic rod is light, stress of the pressure spring is small and even, the sensitivity is kept high, and the service life is long. The ball tree is fixed to the ball support base, it is ensured that the telescopic rod vertically ascends and descends in a rubber tubular body of the ball tree, the situation that a body of the pressure spring deforms under the action of external force is avoided, and the sensitivity of the pressure spring is further protected; and the metal
inductor is arranged to induce approaching metal, so that the requirement on the environment is low, and the induction is sensitive.