Automatic die changing device

The utility model discloses an automatic die changing device, which belongs to the field of copper bar processing equipment, can automatically change dies and can avoid abrasion caused by repeated disassembly and assembly of the dies, and comprises a rack and a fixing plate arranged on the rack, a pipe material channel used for conveying pipe materials is arranged on the rack, and the fixing plate is arranged on the rack. A plurality of peeling molds are detachably installed on the fixing plate, the fixing plate is rotatably installed on the machine frame, a steering device used for driving the fixing plate to rotate so as to switch the peeling molds is arranged on the machine frame, a plurality of supporting and fixing plate pieces are arranged on the machine frame and located on the periphery of the fixing plate, and the supporting and fixing plate pieces are arranged on the machine frame. And a positioning mechanism is arranged between the pipe channel and the fixing plate on the rack and is used for ident