Four-spindle drilling and milling device of door and window profile machining center

The utility model provides a four-spindle drilling and milling device of a door and window profile machining center, which comprises a portal frame, a first movable plate, a second movable plate and a drilling and milling piece which are sequentially arranged from left to right, the portal frame is transversely connected to a main support in a sliding mode, the first movable plate is vertically connected to the portal frame in a sliding mode, and the second movable plate is transversely connected to the first movable plate in a sliding mode. The drilling and milling part is fixedly connected to the second movable plate, meanwhile, a first movement mechanism is arranged between the portal frame and the main support, a second movement mechanism is arranged between the first movable plate and the portal frame, a third movement mechanism is arranged between the second movable plate and the first movable plate, and the first movement mechanism is used for adjusting the drilling and milling position of the drilling