For virtual simulation demand of three dimensional sheet metal pieces laser cutting and the shortcomings of the current laser cutting process simulation system, with gantry five-axis machine tools, vertical axis robot and upsidedown six-axis robot cutting platform as sample, multi-platform three-dimensional sheet metal laser cutting process simulation system, including virtual machining scene 3D visualization, machine kinematics calculation based on site data, laser cutting technology and processing code output is developed. Configuring node sequence to realize virtual machining scene construction, based on Nurbs surface fitting, this paper realizes the mapping of the cutter site data with the shape of nonvertical sidewall cutting. Based on the cutter point data, the laser head pose matrix is solved, and the D-H motion coordinate system is established to realize the kinematics calculation of the machine tool and the simulation of machine tool motion. The process of cutting process is established, and the cutting process is realized, including the embodiment of cutting process defect, the detection and processing of interference collision, and the display of the transition trajectory between the cutting ring. Finally, corresponding reliable platform processing code is output.
基金资助:国VI低排放柴油机进气系统核心部件的研发及产业化(BA2016058)。
作者简介: 陈更明:硕士研究生,研究方向为先进制造技术。
引用本文:
陈更明,仇晓黎,幸研. 多平台三维钣金激光切割过程仿真系统研究与开发[J]. 航空制造技术, 2018, 61(16): 51-58.
CHEN Gengming, QIU Xiaoli, XING Yan. Research and Development of Multi-Platform 3D Sheet Metal Laser Cutting Process Simulation System. Aeronautical Manufacturing Technology, 2018, 61(16): 51-58.