Abstract: A suction-cup gripper device including: at least one pneumatic cylinder including a cylinder body, a piston sliding in an inner chamber of the cylinder body, a rod secured to the piston, the piston-rod assembly being configured to be retracted ad deployed, a pneumatic suction cup secured to the rod, a depressurization circuit, the depressurization circuit including: the rod is tubular, and communicating with the pneumatic suction cup, an inner duct, sealingly connected to the rod via sliding seals, forming a vacuum chamber, and the piston is annular and sweeps an annular pressurization chamber of the cylinder body connected to at least one compressed air port.

Abstract: The present invention relates to a friction stir welding head including a central pin shaft, a peripheral shoulder part, a shaft for driving in rotation the part and the shaft about the axis, the shaft being integral in rotation with the part and being free in translation with respect to the part along the axis, the head including an external interface part intended to be secured to a rotary spindle of the machine, a device for transmitting the rotation of the shaft about the axis of rotation from the part and a device for driving in translation the shaft along the axis from the motor during the rotation of the shaft and of the part.

Abstract: The present invention relates to a friction stir welding head including a central pin shaft, a peripheral shoulder part, a shaft for driving in rotation the part and the shaft about the axis, the shaft being integral in rotation with the part and being free in translation with respect to the part along the axis, the head including an external interface part intended to be secured to a rotary spindle of the machine, a device for transmitting the rotation of the shaft about the axis of rotation from the part and a device for driving in translation the shaft along the axis from the motor during the rotation of the shaft and of the part.