Light-weight turnout automatic switching device for shield construction

The invention discloses a shield construction light-weight turnout automatic switching device, and belongs to the technical field of track turnouts, the shield construction light-weight turnout automatic switching device comprises a driving rod and a linear driving source, the driving rod is used for driving the ends of two auxiliary guide rails to move, the linear driving source is installed on a foundation, and the linear driving source can be used for driving the driving rod to move; the automatic switching device further comprises a processor, first turnout inductive switches are installed on the two sides of the two directional operation rails, and the two input ends of the processor are electrically connected with the two output ends of the first turnout inductive switches in a one-to-one correspondence mode so as to receive rail vehicle driving-in information fed back by the first turnout inductive switches. The control end of the processor is electrically connected with the control end of the linear d