The utility model relates to the technical field of
pipe expanding, in particular to an alternating-
current electric pipe expanding tool which comprises a shell, an expanding mechanism and a driving mechanism. The expansion head
assembly is at least partially arranged in the shell, and one end of the expansion head
assembly is used for being inserted into a
pipe fitting for pipe expansion; the driving mechanism is arranged in the shell and comprises an input end and an output end, the output end is in transmission connection with the expansion head
assembly, and the input end is used for inputting
alternating current to the driving mechanism; the driving mechanism comprises a
stator assembly and a rotor assembly, the
stator assembly is fixedly arranged in the shell, the rotor assembly is rotationally connected to the shell, at least part of the rotor assembly is arranged in the
stator assembly, and the rotor assembly is in transmission connection with the expansion head assembly. According to the alternating-
current electric pipe expanding tool, power can be directly supplied to the alternating-
current electric pipe expanding tool through the mains supply, a
battery pack does not need to be installed in the shell, and the cost of the pipe expanding tool is reduced on the premise that the endurance of the
battery pack does not need to be considered.