Convenient rotating support for steel bar threading machining

The utility model relates to the technical field of rotating supports, in particular to a rotating support convenient for steel bar threading processing, which comprises a bottom steel plate, a rotating component, a limiting component and an unlocking component, a hardened ground is arranged on one side of the bottom steel plate, a threaded column is arranged on one side of the bottom steel plate, and a rotating sleeve is sleeved on one side of the threaded column. A rotating sleeve is installed on a matched threaded column, a telescopic sleeve is connected with a rotating thread through an internal thread, a Y-shaped branch is fixedly arranged on one side of the telescopic sleeve, different fixing sleeves are installed according to different types of machined reinforcing steel bars, after one end of each reinforcing steel bar is machined, a pressing block on the rotating sleeve is pressed, a restraining block is made to be disengaged from restraining, and then the reinforcing steel bars are fixed. And then t