Support device for a pneumatic prehensile member

Support and vacuum power device for a pneumatic prehensile member, for example a suction cup, comprising:

• a main body for connection to a support frame, said main body comprising a casing and a sleeve projecting from said casing, in said sleeve being formed at least one recess;
• a movable element that extends along a main axis and movable in translation along said main axis, provided with a power supply duct that opens posteriorly through a rear mouth, intended for pneumatic connection with a suction device, and anteriorly through a front mouth, intended for pneumatic connection with the prehensile member, said movable element comprising a stem guided in translation in said sleeve, in the side wall of said stem being formed an engagement portion;
• an anti-rotation insert made in a single body inserted into said sleeve through said recess so as to be rigidly connected to the main body, in said anti-rotation insert being formed a through opening slidably engaged by the stem, said through opening being defined by at least one contact surface extended for an effective contact with the engagement portion of the movable element, thus achieving an anti-rotation constraint for said movable element.