Automatic flanging equipment and process

The invention relates to an automatic flanging device and technology, and belongs to the technical field of air conditioner outdoor unit copper pipe machining, the automatic flanging device comprises a rack, the rack is provided with a tailstock, a sliding seat and a fixed seat, the tailstock and the fixed seat are fixedly connected with the rack, the sliding seat slides in the length direction of the rack, and a sliding frame is used for fixing a copper pipe; the module is arranged at the position of the fixed seat and is used for clamping the copper pipe; the core rod is horizontally arranged and sequentially comprises a first limiting rod, a second limiting rod, a third limiting rod and a fourth limiting rod, the middle rod is arranged at the position of the fixing base, one end of the middle rod is detachably connected with one end of the limiting rod, an insert is arranged on the middle rod and slides in the radial direction of the middle rod, a core head is connected to the insert in a sliding mode, and