Online deep hole measuring mechanism of horizontal honing machine

The utility model provides an online deep hole measuring mechanism of a horizontal honing machine, which relates to the technical field of honing deep hole processing and measuring and comprises a machine tool base, a workpiece base, a reciprocating moving seat, a spindle box, a spindle rotating motor and a machine tool spindle. The front end of a machine tool spindle is connected with a floating connector, the floating connector is connected with a honing head connecting rod through a cylindrical pin, the outer surface of the end of the honing head connecting rod is sleeved with a rotating connector, and the other end of the honing head connecting rod is provided with a honing head, a floating measuring head mechanism and a rotary passing supporting mechanism. According to the design, stable and clean compressed gas can be provided for the measuring head, meanwhile, it can be ensured that the honing head conducts real-time measurement in the machining process, a pneumatic hose and a honing head connecting ro