A pipe cutting method based on combined pipe cutting machine

Abstract

The invention discloses a pipe cutting method based on a combined pipe cutting machine. The combined pipe cutting machine includes a laser pipe cutting machine and a saw blade pipe cutting device. The saw blade pipe cutting device includes a frame connected to one end of the bed. The frame is equipped with a pipe conveying device, a positioning mechanism, a saw blade cutting machine and a baffle, and the pipe conveying device, a positioning mechanism and the frame are slidingly connected, and the baffle and the positioning mechanism are respectively located at two ends of the saw blade cutting machine along the length direction of the pipe. end, the pipe conveying device can be docked with the laser pipe cutting machine and the saw blade cutting machine respectively; the pipe cutting method is that when the end face of the last pipe in the fixed chuck cannot be cut by the laser pipe cutting machine, the pipe conveying device will cut the pipe Transported to the saw blade cutting machine, the cutting is completed by the saw blade cutting machine. The invention has the beneficial effects of realizing zero tailing production, reducing pipe material loss, reducing production cost, high automatic feeding efficiency, simple operation, high cutting efficiency, safety and reliability.

Description

technical field [0001] The invention relates to the technical field of pipe cutting, in particular to a pipe cutting method based on a combined pipe cutting machine. Background technique [0002] Laser cutting has the advantages of smooth cutting surface, high cutting efficiency and high cutting precision, so laser cutting has been widely used, and laser pipe cutting machine is one of the applications of laser cutting; [0003] Traditional laser pipe cutting equipment usually only includes a fixed chuck and a movable chuck. For example, CN105458522A discloses a pipe cutting machine, which includes a frame, a fixed chuck arranged at one end of the frame, and a fixed chuck arranged at the other end of the frame. The feeding chuck at one end, the fixed chuck driving device and the feeding chuck driving device for driving the fixed chuck and the feeding chuck to rotate respectively, the transfer device for driving the feeding chuck to move and feed, and the pipe cutting device f...

AI Technical Summary

Problems solved by technology

[0003] Traditional laser pipe cutting equipment usually only includes a fixed chuck and a movable chuck. For example, CN105458522A discloses a pipe cutting machine, which includes a frame, a fixed chuck arranged at one end of the frame, and a fixed chuck arranged at the other end of the frame. The feeding chuck at one end, the fixed chuck driving device and the feeding chuck driving device for driving the fixed chuck and the feeding chuck to rotate respectively, the transfer device for driving the feeding chuck to move and feed, and the pipe cutting device for cutting the pipe In actual use, the pipe cutting method of the pipe cutting machine is to clamp the pipe fittings tightly with the fixed chuck and the feeding chuck, and the pipe cutting device cuts the pipe. After the pipe cutting is completed, the fixed chuck releases the pipe fittings and moves The device drives the feeding chuck to clamp the pipe fittings for feeding, and the pipe cutting device reprocesses the pipe fittings. The advantages of the pipe cutting method of the double chuck laser pipe cutting machine are that the automatic feeding is efficient, the action is simple, safe and reliable, and the cutting efficiency is high. Due to the structural limitations of traditional laser pipe cutting equipment, the pipe cutting method of the double-chuck laser pipe cutting machine always has the last section of each pipe that is not within the cutting range, that is, when the feeding chuck moves to the fixed chuck to the limit position , the end face of the last section of the pipe located in the fixed chuck cannot be cut, and this section of pipe is usually called the tailing, which causes the problem of material waste and increases the production cost

[0004] The current improvement method on the market is to design a multi-chuck laser pipe cutting machine, such as CN110421277A discloses a three-chuck laser pipe cutting machine, including a base, a first chuck, a second chuck, and a third chuck and the laser head, the first chuck, the second chuck and the third chuck can all be slidably arranged on the base, the first chuck and the second chuck are arranged at both ends of the base, the first chuck The three chucks are arranged between the ground chuck and the second chuck, the laser head is arranged on the base, the laser head can move along the width direction and the height direction of the base, and the An auxiliary support mechanism that moves up and down in the height direction of the base; another example is CN109848585A which discloses a laser pipe cutting machine, including a base, a first chuck, a second chuck, a third chuck, a fourth chuck and a laser head, The first chuck, the second chuck, the third chuck and the fourth chuck can all be slidably arranged on the base, and the first chuck and the second chuck are arranged at both ends of the base, and the The third chuck is arranged between the first chuck and the second chuck, the fourth chuck is arranged between the first chuck and the third chuck, the laser head is arranged on the upper end of the base, and The laser head can move along the length of the base; the advantage of adopting the above-mentioned two kinds of pipe cutting methods of the multi-chuck laser pipe cutting machine is that it can realize real zero tailing cutting, reduce raw material consumption, environmental protection and energy saving, and reduce production. Cost; however, the pipe cutting method of the multi-chuck laser cutting machine is cumbersome because the laser head needs to move between the chucks, and the cutting efficiency is more than 80% slower than that of the double-chuck laser pipe cutting machine, and the tailings are reduced by sacrificing time Loss, and the efficiency of automatic feeding is low

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