Multi-machine coordination is a crucial issue to obtain high working rate and trajectories of collision avoidance in the dynamic compact environment for high-speed press line. This paper proposed a method based on simulation in MATLAB to coordinate multiple machines in auto-body-panel stamping line and verify the correctness of simulation results simultaneously. The proposed method consists of variable-period phase delay and minimum safe distance based on Dijkstra algorithm, which are used to achieve multi-machine coordination and collision avoidance, respectively. MATLAB-ADAMS co-simulation of auto's side-frame outer panel has been taken as an example to illustrate and confirm the efficiency of the proposed method. Meanwhile, the optimal results obtained from the proposed method are better than the previous simulation results under the same technical requirements. In addition, the proposed method combines programming with simulation in MATLAB, which can verify results timely and provide a guide for presenting the status of high-speed press lines at one moment in the graphical user interface.
High-speed press lines are related to the fierce competition in the automobile industry and rely on continuous high-efficiency automated feeding systems. Kinematic simulation systems have facilitated the improvement of production processes by generating real-time kinematic curves to avoid interference in feeding systems. In this article, a new method based on quintic polynomials in MATLAB and ADAMS is introduced to achieve whole-line planning using a kinematic simulation system for path planning. Furthermore, secondary interface is developed to visualize the kinematic curves and animate the generated whole-line trajectories. The kinematic simulation system was found to improve the efficiency of generating predicted trajectories in joint or Cartesian space and achieved reliable whole-line path planning, including collision inspection and singular point detection, by using parametric modeling and analyzing kinematic curves. Finally, the kinematic simulation system was verified using results of a kinematic analysis and example simulation.
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