According to the pressing shifting fork device and the chamfering
machine thereof, the pressing shifting fork device is connected with a telescopic driving
assembly through a telescopic adjusting mechanism, a guide pressing head and a
cushion block are oppositely arranged, and when the telescopic driving
assembly drives the guide pressing head to be close to the
cushion block, the guide pressing head can enable a heat exchange
pipe between the guide pressing head and the
cushion block to be located at the preset position of the cushion block; and the heat exchange tube is clamped, so that the heat exchange tube can be chamfered subsequently. The preset position is the position where the heat exchange tube is located when the chamfering is qualified. When the telescopic driving
assembly drives the guide pressing head to get close to the cushion block, the guide pressing head can enable the heat exchange
pipe between the guide pressing head and the cushion block to be located at the preset position of the cushion block, so that the guide effect is achieved, it is guaranteed that the heat exchange
pipe is located at the preset position of the cushion block, and deformation of a
copper pipe opening at a chamfer due to deviation of the heat exchange pipe is prevented. In addition, the pressing shifting fork can guide the heat exchange pipes of different models, the production requirements of the heat exchange pipes of various models are met, the
machine adjusting time for pipe type switching is shortened, and the production efficiency is improved.