Pick-up head

A pick-up head for use in picking up a workpiece having a pair of hollow rivets depending in spaced relationship from a lower surface thereof and opening into an upper surface thereof, and moving the workpiece towards a board to place said lower surface thereof, thereby to insert said rivets into predetermined holes in the board, the pick-up head comprising:

• a body having a central vertical axis and upper and lower faces;
• means on said upper face for attaching said body to a longitudinally movable shaft with said central axis coincident with the axis of the shaft;
• first and second pins slidably mounted in said body and extending parallel to said central axis at positions spaced therefrom, said pins being disposed on opposite sides of said axis and having free end portions projecting below said lower face and terminating in tapered spigots for reception in said hollow rivets;
• and
• a vacuum block slidably mounted for vertical movement in said body between said pins;
• an evacuable manifold in said body having means for connection to an evacuating pump and opening between said free end portions, for engagement with the upper surface of said workpiece;
• and
• first and second springs connected to said pins and said vacuum block, respectively, and against the action of which said pins and said vacuum block are movable upwardly in said body.