Research On Path Optimization For Laser Cutting Machine With Beam Upside Down

Laser processing technology has been paid more and more attention in the manufacturing industry, and laser cutting technology is one of the important techniques in that industry. Optimization of cutting path is a key issue of the laser cutting industry, it can reduce the air path and affect the cutting efficiency on the premise of not affecting the cutting quality.Software and hardware of laser cutting machine’s control system architecture is proposed, which with beam upside down. And the main work of this paper is pointed, which concludes the man-machine interface module development, the research of Z-axis’ s leapfrog and the research of path planning.Firstly, the geometric expression of contour of components is given. The optimization of cutting path is translated into a GTSP considering the complexity of components in real and the complex including relationship between themselves. The target function is given and the details of translating is analyzed.Secondly, the algorithm which takes the starting point and the cutting sequence into consideration at the same time is proposed. Then a tree structure is given to describe the relationship between the contour of components. On the basis of the analysis of the limitation of Z-axis during the cutting process is analyzed, then the algorithm which realized the function module of Z-axis leapfrog is proposed, and the details are given.Thirdly, under the analysis of the realization of using ACA or GA to solve the optimization of cutting path problem, the advantage and disadvantage is pointed. Then GAAA is proposed, which contains the advantages of ACA and GA. Some special treatments for laser cutting path planning are given, which include dynamic candidate sets strategy, mutation characteristics, dynamically changing mutation probability. The algorithm is realized and the comparison with other algorithm is given. Then the result of simulation is proposed, which can indicate the superiority of GAAA.At last, the HL3015 is shown which is developed using GAAA, and the man-machine interface module and the general function of lather cutting machine is proposed by the same time.