Blind hole cutting and processing system in perforating gun

The utility model provides a blind hole cutting and processing system in a perforating gun. The blind hole cutting and processing system is provided with an oil cylinder body 1, wherein the right side of the oil cylinder body 1 is provided with a fixing sleeve 16, the left side of the oil cylinder body 1 is provided with a cutting device, the cutting device consists of a cutting head 5 and a rotor 2, a blade is arranged on the rotor 2, and is in spiral distribution, the middle part of the oil cylinder body 1 is provided with a positioning device, the positioning device consists of a plunger piston 8 and a pre-positioning shaft 11, a hydraulic pipeline is arranged in the oil cylinder body 1, and the hydraulic pipeline controls the cutting device and the positioning device. The rotation and feeding movement of a cutter is controlled through the conveyance of pressure oil in the hydraulic pipeline. The plunger piston arranged on the oil cylinder body enables the oil cylinder body to be accurately positioned and clamped with an inner cavity of a processed pipe under the effect of the pressure oil, so that the cutting device obtains higher rigidity and stability, the cutting efficiency is improved, and the service life of the cutter is prolonged.