Auxiliary device for building engineering bending

The utility model discloses an auxiliary device for bending in constructional engineering, which relates to the field of bending auxiliary equipment and comprises a bending machine body, a workbench is arranged on the bending machine body, the workbench is provided with a movable column and a fixed column which are used for bending a part to be machined, and the bending machine body is provided with a fixing structure triggered by resistance generated during bending of a reinforcing steel bar. The bending machine body is provided with a distance adjusting structure, the fixing structure comprises a limiting block and a first fixing block, the limiting block and the first fixing block are fixedly connected to the upper surface of the workbench, and the first fixing block is provided with a stress plate which can generate resistance when a reinforcing steel bar is bent and deforms and can be extruded by the reinforcing steel bar. And the first fixing block is further provided with an abutting-in plate for abutt