Pipe expanding device

The embodiment of the utility model discloses a pipe expanding device which comprises a clamping plate support and a pipe expanding assembly. The clamping plate support is movably connected with a front tube plate of a tool to be subjected to expanded connection. A through hole is formed in the surface of the clamping plate support, and the pipe expanding assembly penetrates through the through hole to expand a heat exchange pipe in the tool to be subjected to expanded connection. The pipe consumption is reduced, and the pipe expanding efficiency is improved. 本实用新型实施例公开了一种扩管装置，包括：卡板支架以及扩管组件；所述卡板支架可活动的与待胀接工装的前管板连接；所述卡板支架的表面开设有通孔，所述扩管组件穿过所述通孔以对所述待胀接工装内部的换热管进行扩管。减少了管材用量，提高了扩管效率。