A method for laser cutting path planning to realize laser head stop light and move in space to avoid obstacles
A path planning and laser cutting technology, which is applied to laser welding equipment, metal processing equipment, welding equipment, etc., can solve the problems of multiple lifting actions, lower efficiency, and no consideration, and achieve the effect of improving safety
Active Publication Date: 2020-04-28
上海柏楚电子科技股份有限公司
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[0002] In the existing laser cutting motion control technology, there are mainly two methods for obstacle avoidance. One is the air movement method without lifting. It will pass through the place that has been processed during the air movement; the second is the air movement method with the lifting function, which will reduce the efficiency due to more lifting actions
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[0016] like figure 2 as shown, figure 2 There are four air movement trajectories of the laser head, among which the second from top to bottom is the conventional air movement method: air movement method 1, which calculates the end point (X1, Y1) of the cut graphic and the starting point of the graphic to be cut (X2 , Y2), according to the preset motion parameters of the X-axis direction and the Y-axis direction, the X-axis and the Y-axis move in a way that does not affect each other.
[0017] figure 2 The third from top to bottom is the space shift method 2, which calculates the end point (X1, Y1) of the cut graphic and the starting point (X2, Y2) of the graphic to be cut respectively, and determines the X-axis direction and Y-axis direction of the laser head. Moving speed, calculate the time Tx and Ty from X1 to X2 and Y1 to Y2 in the X-axis direction and Y-axis direction, judge the size between Tx and Ty, if Ty>Tx, change the movement speed in the X-axis direction, so t...
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The invention relates to the field of laser cutting, in particular to a method of planning a laser cutting path to stop light and move emptily to avoid obstacles. The method comprises the following steps: S1, calculating a moving path of an empty moving method 1; S2, judging whether the moving path of the empty moving method 1 is intersected with a processed graph or not; S3, calculating a movingpath of an empty moving method 2; S4, judging whether the moving path of the empty moving method 2 is intersected with the processed graph or not; S5, calculating a moving path of an empty moving method 3; S6, judging whether the moving path of the empty moving method 3 is intersected with the processed graph or not; S7, calculating a moving path of an empty moving method 4; S8, judging whether the moving path of the empty moving method 4 is intersected with the processed graph or not; and S9, controlling a laser head to execute empty movement in a lifting manner. Compared with the prior art,prognosis can be made before the laser head moves emptily to judge whether the track of the laser head which moves emptily passes through a hole formed in a panel, so that the effect of avoiding obstacles is exerted.
Description
technical field [0001] The invention relates to the field of laser cutting, in particular to a method for laser cutting path planning to realize laser head light stop, space shift and obstacle avoidance. Background technique [0002] In the existing laser cutting motion control technology, there are mainly two methods for obstacle avoidance. One is the air movement method without lifting. It will pass through the place that has been processed during the air movement; the second is the air movement method with the lifting function, which will reduce the efficiency due to more lifting actions. And in the prior art, the space shifting algorithm adopts single-axis motion, that is, the motion of one axis does not affect the motion of other axes. Contents of the invention [0003] In order to overcome the deficiencies of the prior art, the present invention designs a laser cutting path planning method to realize the laser head stop light and move to avoid obstacles, and make a ...
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IPC IPC(8): B23K26/08B23K26/38B23K26/70
CPCB23K26/08B23K26/38B23K26/702
Inventor 万章夏益博
Owner 上海柏楚电子科技股份有限公司