System control of fiber laser cutting machine

Abstract of Fiber Laser Cutting Machine: A new type of laser cutting equipment for metal pipes is introduced. This machine adopts the method of axial movement of the laser head and the rotation of the workpiece driven by the electric chuck to synthesize the cutting trajectory, which realizes segmented cutting. It does not need to replace the clamping block for workpieces of different diameters. Oxygen pressure cutting saves 2/3 of the oxygen consumption compared with traditional equipment. The equipment has a larger single-pass cutting length of 1000mm, a cutting surface roughness of 0.3lm, a hole position accuracy of ±0.1mm/m, and an auxiliary oxygen pressure of 40.15MPa. Keywords: laser cutting; pipes; electric chucks; Changchun Institute of Optomechanics and Physics, Chinese Academy of Sciences, combined with the actual needs of the petroleum extraction industry. It has been used in the production of 'bomb rack tubes' by many companies such as oil fields.

The basic structure and working principle of the fiber laser cutting machine: It is realized by the relative movement of the laser beam and the workpiece. In the design of this machine, the tube rotates axially (x-axis) and the laser head moves horizontally (x-axis) to synthesize the motion trajectory, that is, the motion mode of the laser beam flying in one direction. At the same time, the laser head (z axis) follows the focus for tracking, and is controlled by the numerical control system to perform segmented reciprocating processing of the workpiece. The process parameters can be set according to the processing requirements of the workpiece. It is composed of control system, laser, laser power supply, water cooling system and other units.