Manipulator for truss

The invention relates to the technical field of manipulators, and particularly discloses a manipulator for a truss, which comprises a stand column, the stand column is fixedly connected with a cross beam through a connecting frame, the cross beam is connected with a guide beam in a sliding manner, the guide beam is vertically connected with a fastening frame in a sliding manner, and the fastening frame is provided with a clamping assembly for clamping a workpiece; and the clamping assembly comprises a clamping frame installed on the fastening frame, clamping jaws are oppositely connected to the interior of the clamping frame in a sliding mode, and a third driving piece is arranged in the clamping assembly. The two clamping jaws are driven to slide synchronously through the third driving part and the transmission assembly, so that a workpiece can be clamped, then the manipulator can move in multiple directions through sliding of the guide beam on the cross beam and sliding of the fastening frame and the clampi