Automatic machining device for building deformation joint

The invention discloses an automatic building deformation joint machining device which comprises a strip-shaped assembling base rotationally installed on a connecting frame, two outward-expanding type material taking and placing mechanisms are symmetrically installed on the two opposite end faces of the circumferential face of the strip-shaped assembling base, and an adjusting mechanism is installed between each outward-expanding type material taking and placing mechanism and the strip-shaped assembling base. One end, far away from the strip-shaped assembling seat, of each external expansion type material taking and placing mechanism is connected with a pressure bearing mold, the connecting frame is connected with a jacking mold, and when one external expansion type material taking and placing mechanism rotates along with the strip-shaped assembling seat and is located under the strip-shaped assembling seat, the external expansion type material taking and placing mechanism is located over the jacking mold. Th