Motion control method and device of laser cutting nozzle and computer device

Abstract

The embodiment of the invention discloses a motion control method and device of a laser cutting nozzle and a computer device. The method comprises the steps of obtaining the current cutting point coordinates, and the target cutting point coordinates of a cutting nozzle of a laser cutting device and the maximum vertical acceleration of motion of the cutting nozzle in the vertical direction; enabling the target vertical coordinate value of the target cutting point in the vertical direction to be larger than the current vertical coordinate value of the current cutting point in the vertical direction; according to the current cutting point coordinates, the target cutting point coordinates and the maximum vertical acceleration, generating the motion track of the cutting nozzle; enabling the motion track to be in an arc shape, wherein the circle center of the circle where the arc is located is located on the perpendicular bisector of a line determined by the current cutting point and the target cutting point; and controlling the cutting nozzle to move according to the motion track until the cutting nozzle reaches the target cutting point from the current cutting point. According to the above manner, the cutting efficiency and the safety are ensured to a certain degree.

Description

technical field [0001] The invention relates to the technical field of laser cutting, in particular to a motion control method, device and computer equipment of a laser cutting nozzle. Background technique [0002] Laser cutting is a non-contact processing method, which mainly generates a laser beam through a laser cutter, and transmits it to the laser head through an optical fiber, and melts the workpiece from the laser cutting nozzle. The laser cutter can move horizontally and vertically. [0003] In the process of flat panel cutting, when the laser cutter wants to reach the target cutting point from the current cutting point, the laser cutter needs to be lifted up vertically at the current cutting point first, then do a translational movement along the horizontal direction, and finally descend vertically to reach the target The cutting point is used to ensure the safety of cutting. However, in the actual cutting process, the cutting efficiency of the above method is low,...

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Problems solved by technology

[0003] In the process of flat panel cutting, when the laser cutter wants to reach the target cutting point from the current cutting point, the laser cutter needs to be lifted up vertically at the current cutting point first, then do a translational movement along the horizontal direction, and finally descend vertically to reach the target The cutting point is used to ensure the safety of cutting. However, in the actual cutting process, the cutting efficiency of the above method is low. Therefore, the leapfrog method is used to improve the cutting efficiency.

[0004] However, no matter whether the leapfrog method is adopted or not, due to the thermal effect or the turning of the workpiece, the surface of the workpiece may be warped or the surface of the workpiece may be deformed to produce a slope, resulting in the inability to guarantee the safety of cutting

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