Positioning and clamping mechanism for steel bar

The utility model relates to the technical field of steel bar machining, in particular to a steel bar positioning and clamping mechanism which comprises a workbench, a power assembly is arranged at the bottom of the workbench, a clamping assembly is arranged at the top of the workbench, and a containing groove is formed in one side of the top face of the workbench. The clamping assembly comprises a fixing table fixedly connected to the top of the workbench, a connecting shaft is rotationally connected to the middle of the fixing table, and two springs are fixedly connected to one side of the connecting shaft. Compared with a traditional mode that a threaded rod is manually screwed to clamp a steel bar, the clamping speed is higher, when clamping is released, the pressing plate rotates to the top of the fixing table, the moving space is avoided, the steel bar is conveniently placed in the containing groove, the clamping efficiency of the steel bar is improved, and the practicability is high. Compared with a tr