Abstract: This disclosure describes machining units for machining a workpiece, in particular for welding a workpiece by, using a thermal machining beam. The thermal machining beam can be directed onto a workpiece along a beam incidence axis by means of the machining unit, wherein the machining unit has a rotary drive device by means of which an auxiliary module for workpiece machining is rotatable about the beam incidence axis. The machining unit includes a coupling device by which the auxiliary module can be moved between a position coupled to the rotary drive device and a position uncoupled from the rotary drive device.

Abstract: This disclosure describes machining units for machining a workpiece, in particular for welding a workpiece by, using a thermal machining beam. The thermal machining beam can be directed onto a workpiece along a beam incidence axis by means of the machining unit, wherein the machining unit has a rotary drive device by means of which an auxiliary module for workpiece machining is rotatable about the beam incidence axis. The machining unit includes a coupling device by which the auxiliary module can be moved between a position coupled to the rotary drive device and a position uncoupled from the rotary drive device.

Abstract: A clamping module for a clamping device with a housing which accommodates a drive device which transfers at least one clamping jaw from a starting position to a clamping position, wherein at least one solid body joint is provided between the drive device and the at least one clamping jaw, the solid body joint being elastically resilient in the direction of a clamping movement of the clamping jaw. A clamping device comprises at least one clamping module and/or a positioning module.