The invention provides a special punching machine for a bottle opening of a CNG large-volume steel seamless gas cylinder, and belongs to the technical field of gas cylinder machining. The problem thatan existing large-volume gas cylinder needs to be automatically punched and machined is solved. The punching machine comprises two groups of punching units, each punching unit comprises a base, a main shaft box, a top bowl seat and a tail top seat; a main shaft is arranged on the main shaft box, a top bowl is arranged on the top bowl seat, a tail top disc is arranged on the tail top seat, the main shaft and the tail top disc can move close to or away from the top bowl in the X direction relative to the top bowl, a supporting device is further arranged on the base, and the special punching machine further comprises a transferring device used for transferring the gas cylinder from the supporting device of one punching unit to the supporting device of the other punching unit. The machine hasthe advantages of being high in automation degree, high in machining efficiency and high in machining precision.

Special punching machine for bottle opening of CNG large-volume steel seamless gas cylinder

The utility model discloses a gas cylinder bottle screw processingequipment, including anchor clamps and cutter, anchor clamps include with gas cylinder bottom cooperation by the pagoda of bowls of cylinder driven and with the regional complex locating piece of gas cylinder shoulder arc, the locating piece has the bell mouth that air feed bottle bottleneck passed, is the cone angle of bell mouth 125 130, is the diameter of upper base circle 70 75mm, the bell mouth inner wall is leaned on to regional subsides of gas cylinder shoulder arc during processing. The utility model discloses utilize the common centre gripping of pagoda of bowls and locating piece to fix the gas cylinder, utilize the regional cooperation of circular arc of bell mouth and gas cylinder shoulder, the tapering in limit fixed cone shape hole and go up bottom circle diameter, guarantee the bell mouth paste lean on the gas cylinder the position diameter 100mm the near, be close to gas bottle opening, can reduce because of the center deviation that bottleneck processing and thermal treatment caused, the neck cutting point was riveted to this position the while, helped thread length's uniformity.

Luo Weimin

Papers

Gas cylinder bottle screw processingequipment