Laser cutting device for annularly cutting large-diameter steel pipe

Abstract

The invention relates to the field of laser cutting, and discloses a laser cutting device for annularly cutting a large-diameter steel pipe. The laser cutting device comprises a shell, a left-right through discharge cavity is formed in the shell, a front annular cavity with a rightward opening is annularly formed in the right end wall of the shell, a sliding block positioning cavity with a rightward opening is formed in the upper side of the left end wall of the front annular cavity, and a base is fixedly connected with the lower side of the shell. The effect of precisely and annularly cuttinga steel pipe can be achieved by driving a laser nozzle to move through longitudinal circular motion of a cutting module, and a clutch trigger rack, a positioning shaft and a series of parts can be driven to move up and down through up-down motion of a curved surface clutch plate so as to achieve up-down clutch after annular cutting by one circle, and whether the steel pipe is cut or not can be easily judged; the cut steel pipe can be accurately and longitudinally fixed to be always kept at the concentric position of the device by rotating a threaded cylinder, so that the cutting face is moreuniform; and the steel pipe can be annularly cut multiple times through the series of motions, and the overall steel pipe cutting efficiency and quality are improved.

Description

technical field [0001] The invention relates to the field of laser cutting, in particular to a laser cutting device for circularly cutting large-diameter steel pipes. Background technique [0002] At present, most of the cutting of large-diameter steel pipes adopts magnetic cutting, water jet cutting, epoxy cutting and other methods. Such cutting methods have problems such as the cutting surface is not smooth enough, not uniform enough, and the cutting time is long. However, laser cutting technology is rarely used. In this work, most of the current machinery and equipment for cutting large-diameter steel pipes use the laser nozzle to be fixed, and the fixing device is slowly driven and rotated to cooperate with the laser nozzle to achieve the purpose of cutting. This has caused the overall equipment to be too bulky. question. Contents of the invention [0003] The object of the present invention is to provide a laser cutting device for circularly cutting large-diameter st...

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Problems solved by technology

[0002] At present, most of the cutting of large-diameter steel pipes adopts magnetic cutting, water jet cutting, epoxy cutting and other methods. Such cutting methods have problems such as the cutting surface is not smooth enough, not uniform enough, and the cutting time is long. However, laser cutting technology is rarely used. In this work, most of the current machinery and equipment for cutting large-diameter steel pipes use the laser nozzle to be fixed, and the fixing device is slowly driven and rotated to cooperate with the laser nozzle to achieve the purpose of cutting. This has caused the overall equipment to be too bulky. question

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