Multidirectional clamping device for profile steel surface

A section steel surface multi-directional clamping device relates to the technical field of multi-directional clamping and comprises a cross beam. Fixing blocks are arranged at the two ends of the cross beam; every two fixing blocks form a group; two groups are arranged; a hanging ring is arranged on the side, away from the fixing block, of the beam. A clamping arm is arranged on the side, away from the cross beam, of the fixing block. The two first clamping arms and the two second clamping arms are arranged, and clamping blocks are arranged at the ends, away from the fixing block, of the first clamping arms and the ends, away from the fixing block, of the second clamping arms. During use, a fixing block is arranged on one side of the cross beam; a first movable support arm is arranged on the fixed block; the two first movable supporting arms are movably and fixedly connected with the fixed block through connecting pins, a first clamping arm is arranged at the end, away from the fixed block, of each first mov