Design And Simulation Of The Automated Feeding Device For A Press Line

The manual feeding in press line has been gradually replaced by the automated feeding system for its high productivity and steady product quality. Designing a special feeding system in particular cases has been the primary way for the automation rebuilding and upgrading of press lines. The object of this paper is to research the special automated feeding device of three degrees of freedom(3-DOF) for a press line by modern method of mechanical design, and finally complete the schematic design, structural design and simulation analysis. The main works are as follows:(1)Considering the special working conditions of the press line, a 3-DOF special automated feeding device is built, which includes a detached feeding manipulator and a raising platform. On the basis of motion planning and freedom analysis for the manipulator and raising platform, the mathematical relationship of noninterference in motion between the manipulator and the die is built, which includes three different motions of the feeding device. The schematic design of transmission system, taking decice, as well as the array of manipulator parts is finished.(2)After the design of executive system, transmission system, driving system and key parts, the three dimensional model of feeding device is built. ANSYS Workbench is applied to analyze strength and stiffness of the feeding device, and the results suggest that the structure is strong enough and the stiffness satisfies the requirement.(3)Following the building of the kinematical equation and dynamical equation of the feeding device, the calculation of related parameters is figured out, which provides theoretical basis for simulation. The kinematical and dynamical simulation of this device in three different motions is carried out by ADAMS. The simulation results compare with the theoretical, which provide theoretical foundation for motor control.This special automated feeding device designed for press line avoids disadvantages in manual feeding. The simulation results suggest that this design could solve the feeding problems of large center distance between forcing presses and height difference between the die, which satisfies the needs of automated feeding and provides a valuable reference for automation rebuilding and upgrading for press lines of the same type.