|
Li Hui
Department of Computer,
Shijiazhuang Institute of
Railway Technology,
Shijiazhuang 050041, China
Zhang Ce
Meng Caifang
School Mechanical Engineering,
Tianjin University,
Tianjin 300072, China |
|
|
HYBRID-DRIVEN
NINE-BAR PRESS
FOR PRECISION
DRAWING*
Abstract: A novel mechanical press for precision drawing is presented, which is composed of a nine-bar linkage driven by hybrid mechanism. The motion of this linkage is studied by kinematics analysis firstly. The optimization method and model are developed. The actual displacement curves of slider can approach to the ideal ones by two step’s optimization. The dimension of the linkage and the motion rules of servomotor have been optimized. Therefore, by rightly designing the input motion of servomotor, the slider can pass through a group of more desired trajectory suitable for precision drawing.
Key words:
Hybrid-driven mechanism Press Precision drawing Optimum design Servomotor |