Fixing clamp for machining guard rail

The utility model discloses a fixing clamp for machining a guard rail, and relates to the technical field of rails. The device comprises at least two first fixing clamps and a plurality of second fixing clamps, each first fixing clamp comprises a supporting base, and a first fixing plate is detachably installed on each supporting base; the second fixing clamp comprises a second fixing plate and athird fixing plate which are partially overlapped together, a pressing rod is arranged at the end, away from the overlapped portion, of the second fixing plate and the third fixing plate, a driving air cylinder is arranged at the bottom of the overlapped portion of the second fixing plate and the third fixing plate, and a piston rod of the driving air cylinder faces the overlapped portion. According to the fixing clamp for machining the guard rail, the lifting of the piston rod of the driving air cylinder is used for replacing the loosening and tightening process of part of bolts, time is saved, the carrying workload