Abstract: The present disclosure discloses a five-degree-of-freedom hybrid robot with rotational supports. A first and a second fixed shaft seats are rotatably connected to a first and a second rotational support through a hinge, respectively. One end of a first length adjustment device runs through the first rotational support, and the other end is fixedly connected to a moving platform. One end of each of the second and third length adjustment devices runs through the first rotational support and is then connected to the moving platform, respectively. Middle portions of the first, second and third length adjustment devices are each hinged onto the first rotational support. One end of a fourth length adjustment device runs through the second rotational support and is connected to the moving platform. Middle portion of the fourth length adjustment device is hinged onto the second rotational support.

Abstract: The present disclosure discloses a five-degree-of-freedom hybrid robot with rotational supports. A first and a second fixed shaft seats are rotatably connected to a first and a second rotational support through a hinge, respectively. One end of a first length adjustment device runs through the first rotational support, and the other end is fixedly connected to a moving platform. One end of each of the second and third length adjustment devices runs through the first rotational support and is then connected to the moving platform, respectively. Middle portions of the first, second and third length adjustment devices are each hinged onto the first rotational support. One end of a fourth length adjustment device runs through the second rotational support and is connected to the moving platform. Middle portion of the fourth length adjustment device is hinged onto the second rotational support.

Abstract: A parallel mechanism with three-dimensional translation and one-dimensional rotation include a fixing rack, a mobile platform and four chains of the same structure which are symmetrically set between the fixing rack and the mobile platform. Each chain has a near rack rod and two parallel far rack rods. The mobile platform includes a main platform and an assistant platform connected by a revolute joint and perpendicular to each other. Each end of the main platform and the assistant platform is connected with a corresponding lower connecting shaft separately.

Abstract: A parallel mechanism with three-dimensional translation and one-dimensional rotation include a fixing rack, a mobile platform and four chains of the same structure which are symmetrically set between the fixing rack and the mobile platform. Each chain has a near rack rod and two parallel far rack rods. The mobile platform includes a main platform and an assistant platform connected by a revolute joint and perpendicular to each other. Each end of the main platform and the assistant platform is connected with a corresponding lower connecting shaft separately.