Limiting Positions Synthesis of Seven Bar Slider Automated Fiber Placement Mechanism for Motion Generation using Variable Topology

To produce the high quality production and in mass production, industrialists are more keen to develop mechanisms to perform with greater speed and with high accuracy. The mechanism with multi-tasking is key factor to resolve this. Synthesis of these mechanisms is a difficult process, because it uses higher pairs with higher Degrees of Freedom (DOF). There are numerous techniques utilized for the synthesis of mechanisms with higher links and with higher degrees-of-freedom which are complex in nature prompting to time-consuming. Variable Topology Mechanism is the analytical technique used to synthesize the higher DOF mechanism with no iteration. The major factor for a researcher to focus on the operation of mechanism is its limiting or toggle positions. Because these limiting positions decide the operational space and the presence of a dead center in a designed mechanism could be an unwanted structure circumstance if a continuous movement is needed. Nevertheless, it has numerous practical applications as locking devices to make sure about movable members. So this paper is focused on the operating of seven bar slider mechanism with two DOF using variable topology mechanism. In this paper, Grashof type I and Grashof type II mechanisms are used to synthesize using complex number approach. These mechanisms are operating between the limiting positions named as dead center position for Grashof I and Extreme position for Grashof II mechanism. Applications in the automated fiber placement (AFP) are also illustrated.