Pneumatic control connecting device of honing tool and honing tool

The invention relates to a pneumatic control connecting device of a honing tool and the honing tool. The pneumatic control connecting device of the honing tool comprises a tool outer sleeve, a piston, a pressurizing spring and a mandrel feeding piece. The tool outer sleeve is provided with a main machine connecting structure and a honing tool body connecting structure, and the piston, the pressurizing spring and the mandrel feeding piece are arranged in a tool outer sleeve from top to bottom. An air source device inputs air through a pneumatic input interface to drive the piston to feed. The pneumatic control connecting device further comprises a shutdown detection mechanism. The shutdown detection mechanism comprises a position sensor and a shutdown dead center position adjusting mechanism. When the mandrel feeding piece descends to a shutdown dead center, the position sensor sends out a stop signal to control the air source device to release pressure. The pneumatic control honing tool comprises a honing too