Steel tube perforating machine device and perforating method

Abstract

The invention relates to a steel tube perforating machine device and a perforating method. A steel tube perforating machine comprises a tube feeding rack, conveying roller ways, a headstock, a steel tube clamp and a tube discharging rack. The steel tube clamp is adjacent to the headstock. The headstock comprises two symmetrically-arranged perforating machine bodies, sliding tables, a sliding way, a lead screw, a nut and drive motors, wherein the sliding tables, the sliding way, the lead screw, the nut and the drive motors are mounted at the bottoms of the perforating machine bodies. The two perforating machine bodies are fixedly connected with the two sliding tables through bolts correspondingly. The two sliding tables are in sliding connection with the sliding way. The lead screw is in transmission connection with the drive motors and is in screw joint with the nut. The nut is fixedly connected with the sliding tables through a nut seat. The section of one of the two sides, in sliding connection with the sliding tables, of the sliding way is square, and the section of the other of the two sides, in sliding connection with the sliding tables, of the sliding way is angular. According to the steel tube perforating machine device and the perforating method, based on the design of the sliding way of the perforating machine bodies, one side is square, the other side is angular, and therefore it is effectively guaranteed that radial movement does not happen during perforating, and perforating precision is improved; and the requirements of clients for safety, stability and accuracy in the use process are guaranteed.

Description

technical field [0001] The invention relates to a punching machine, in particular to a steel pipe punching machine device and a punching method for punching holes at the ends of steel pipes. Background technique [0002] In recent years, large-diameter, large-wall-thick spiral welded pipes, straight seam welded pipes, and special-shaped steel pipes have been widely used in domestic and foreign port construction piling construction, large-scale structural parts main structure production, and steel structure workshop main beam and column construction. Traditional construction methods It is mainly for gas cutting hoisting holes or welding lugs at the symmetrical parts on both sides of the pipe end on site. It is difficult to guarantee the diameter of the gas cutting holes and the coaxiality tolerance; the process of welding the lifting lugs is cumbersome, and the shape and position tolerances are difficult to guarantee, which brings great inconvenience to the field use. It is v...

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Problems solved by technology

[0002] In recent years, large-diameter, large-wall-thick spiral welded pipes, straight seam welded pipes, and special-shaped steel pipes have been widely used in domestic and foreign port construction piling construction, large-scale structural parts main structure production, and steel structure workshop main beam and column construction. Traditional construction methods It is mainly for gas cutting hoisting holes or welding lugs at the symmetrical parts on both sides of the pipe end on site. It is difficult to guarantee the diameter of the gas cutting holes and the coaxiality tolerance; the process of welding the lifting lugs is cumbersome, and the shape and position tolerances are difficult to guarantee, which brings great inconvenience to the field use. It is very troublesome, and there is a safety hazard of damage to the spreader at the same time

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