Abstract
This project design a six-degree motion measurement device based on hexaslide mechanism, which consists of a mobile platform, six link bars of high precision measuring balls installed on the both end, and a fixed base. The base is mounted on the work table. And the mobile platform is fixed on the main spindle and connected with the ball bearing sockets on the base by the link bars. When the spindle and the mobile platform move, the ball bearing sockets on the base will be driven by the six link bars and moves on the linear guides. By feedback the position of the sockets and pass them into kinematic transformation, the relative position and orientation between the platform and the base can be derived, and this is also the relationship between the main spindle and the table where the workpiece is mounted.