Toolholder for coupling a tool to a handling device

The invention relates to for closing is welding nozzles circulating industrial robot (14) on the cutter clamp (10), comprising: The first fixing device (16), a head is connected with the welding head (12) fixed on the tool clamp (10); And second fixing device (18), a (10) fixed on the tool clamp of the industrial robot (14); And first and second fixing device (16,18) of the antagonistic spring (22,24) each other are deflection or the moving, and a vital circuit (26); when the vehicle surpasses the predetermined amount on or the travelling mechanism for cutting the welding hole (12), wherein one part of the first fixing device (16) is (28) can (tool clamp vertical axis) on the moving the Z direction (30) and a and/or on the SYNCHRONOUS part (32,34) are second fixing device (18) on the X direction, and (32,34) is 30-60 when the x direction and/or a Y-SHAPED direction; the first spring hardness at least one first spring (22) is provided respectively; and aWhen the Z direction (30) is a at least with different second spring hardness second spring (24) is installed. The invention claims: One or more first spring (22) and at least one second spring (24) or each other two layers are arranged in the system is connected.