Pipe bending equipment and bent pipe machining method for inhibiting bent pipe from becoming elliptic

The invention discloses pipe bending equipment and a bent pipe machining method for inhibiting a bent pipe from becoming elliptic. The pipe bending equipment comprises a guide seat and a plurality of movable joint pressing blocks, the guide seat is installed on a rack, the movable joint pressing blocks are distributed side by side and installed on the guide seat in a sliding mode, and semicircular grooves are formed in the right end faces of the movable joint pressing blocks. The semicircular grooves in the movable joint pressing blocks are matched to form a first semicircular groove. Before pipe bending operation is carried out, the first semicircular groove is linear and can be attached to the outer side wall of the linear part of the guide pipe. According to the technical scheme, when pipe bending operation is carried out, part of the movable joint pressing block can slide out of the guide seat, the first semi-circular groove can be bent along with the guide pipe, and then the first semi-circular groove ca