Variable-burst-height energy-gathered cutting device

The invention relates to an energy-gathered cutting device with variable burst height. The energy-gathered cutting device specifically comprises an energy-gathered cutter, a telescopic device, a fixed mold, a fastening device, a nonel detonator and a clamping sleeve. Wherein the telescopic device, the clamping sleeve, the fastening device and the fixed mold are integrated to form a closed-loop structure, so that energy-gathered cutting of different burst heights can be more accurately and conveniently carried out. The energy-gathered cutting device has the specific advantages that in the operation process, the cutting capacity of the energy-gathered cutting device is enhanced in the mode that the energy-gathered cutters are installed on the two sides for cutting. The burst height is adjusted through the telescopic device and scale marks on the telescopic device. The energy-gathered cutting device is stabilized through the fastening device, and errors caused by factors such as shaking are prevented. And a none