Reducing type reinforcing steel bar machining jig frame

The utility model discloses a variable-diameter reinforcing steel bar processing jig frame which comprises a first support and a second support which are arranged in parallel in a spaced mode, the first support and the second support are of an arch structure, and the arch height of the first support is larger than that of the second support. The connecting assembly is located between the first support and the second support and connects the first support and the second support into a whole; the limiting piece is of an arch structure, the limiting piece is vertically installed on the top face of the second support, and the height of the top face of the limiting piece is larger than the arch height of the first support. Steel bar structures of different sizes can be machined, the construction cost is saved, and the needed site space is reduced. 本实用新型公开了一种变径式钢筋加工胎架，包括：两个平行间隔设置的第一支架和第二支架，所述第一支架和所述第二支架为拱形结构，所述第一支架的拱高大于所述第二支架的拱高；连接组件，其位于所述第一支架和第二支架之间，并将所述第一支架和第二支架连接成整体；限位件，其为拱形结构，所述限位件竖直的安装在所述第二支架的顶面，所述限位件的顶面高度尺寸高于