Manipulator arm, and manipulator comprising a manipulator arm

A manipulator arm (12) for being connected to a manipulator chassis frame (11) disposed in the periphery of a metallurgical smelting furnace including a tapping spout, the manipulator arm (12) having a proximal end (35) for being connected to the manipulator chassis frame (11) and a distal end (16, 41) equipped with a first tool receptacle (17) and serving to be connected to a bucket (20, 43) for excavating the tapping spout, wherein the manipulator arm (12) has a second tool receptacle (18, 45) at its distal end (16, 41), the second tool receptacle (18, 45) being formed irrespectively of the first tool receptacle (17) and adapted to be connected to a hammer mill (29) or a milling machine, and wherein the first tool receptacle (17) is equipped with a swivel joint element (19) for connecting the bucket (20, 43) in such a manner that it swivels about a swivel axis (25, 44), which is disposed at the distal end (16, 41) of the manipulator arm, and the second tool receptacle (18, 45) is equipped with a linear guide element (39) for guiding the second tool receptacle (18, 45) in such a manner along a translational axis T intersecting the swivel axis (25, 44) that a tool of the hammer mill (29) or the milling machine received in the second tool receptacle 18, 45) is guided past the bucket (20, 43).