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.