Abstract:
This research presents the development of two-master-slave manipulator with force reflect to operate for miniature tasks with precision of 0.5 millimeter. The movements of slave arms have two patterns. First, the coarse motion is for moving rapidly into a workspace area. Secondly, the fine motion is for moving precisely within the workspace area and comfortable position-control. Moreover, a user can turn on/off a virtual fixture function that controls master-arms to create force reflect for preventing a collision between slave-arms and obstacles outside a workspace area. This function can create mutual virtual fixture by using positions of slave-tool-tips to define position and size of virtual fixture. From experiments, an accuracy value and a precision value of new slave-arm are similar to these values of old slave-arm. The precision of collaborated operation of two-master-slave manipulator under fine motions is satisfied an objective of this research. Furthermore, the experimental results of collaborated operation of two-master-slave manipulator under defined real tasks ensure the ability of this manipulator for miniature task operation.