Deformed steel bar size precision control device

The utility model discloses a deformed steel bar size precision control device, and belongs to the technical field of steel processing. In order to solve the problem that the twisted steel size cutting precision is difficult to control, an upper clamping plate is slidably connected to a first guide column and a second guide column, matched twisted steel grooves are formed in the inner side of the upper clamping plate and the inner side of a lower clamping plate, and multiple sets of fastening assemblies are arranged so that the upper clamping plate and the lower clamping plate can be used for effectively clamping multiple twisted steel; the multiple deformed steel bars can be cut at the same time, the cutting efficiency is higher, meanwhile, shaking of the deformed steel bars is avoided through stable and immovable clamping, the control precision is improved, a second motor works to drive a cutting saw to ascend or descend to cut the deformed steel bars, in the cutting process, a deformed steel bar body is ke