Aluminum profile machining straightening device and straightening method

The invention discloses an aluminum profile machining straightening device and straightening method, and particularly relates to the field of aluminum profile machining, the aluminum profile machining straightening device comprises a model straightening piece adjusting mechanism, and the model straightening piece adjusting mechanism comprises a fixing pipe, a threaded cylinder, a cross-shaped sliding groove plate, four lead screws, four sliding blocks and a set of model straightening pieces; the middle of the cross-shaped sliding groove plate is fixedly connected to the outer wall of the threaded cylinder, one sides of the four sliding blocks are slidably connected into four side plate sliding grooves of the cross-shaped sliding groove plate, and one ends of the four lead screws are connected to the inner walls of the four sliding blocks in a penetrating and threaded mode correspondingly. According to the aluminum profile straightening device, the embedded groove model part and the center groove model part in