Universal clamp for processing curtain wall structural member

The invention provides a universal clamp for machining curtain wall structural parts. The universal clamp comprises a workbench, a fixed support, a first rack, a fixed mounting plate, a movable base plate, a second rack and a movable mounting plate. The workbench is horizontally placed on the operation table, and a plurality of parallel horizontal sliding ways are formed in the surface of the workbench. The fixed support is fixed to one end of the workbench, and the fixed mounting plate is fixed to the fixed support. A movable base plate capable of horizontally sliding along the surface of the workbench is arranged at the other end of the workbench, a second rack is fixed to the movable base plate, and a movable mounting plate is mounted on the second rack through a rotating shaft. And fixed supporting blocks and movable supporting blocks are mounted on the inner side walls of the fixed mounting plate and the movable mounting plate. By adjusting the distance between the fixed mounting plate and the movable mo