Abstract: A positioning device includes a planar surface, a mobile platform configured to slide along the planar surface and cables for positioning and moving the mobile platform along the planar surface. The mobile platform includes a planar bearing system located at the side of the mobile platform configured to slide along the planar surface. The planar bearing system includes a component for pushing the mobile platform against the planar surface; and a component for allowing sliding of the planar bearing system with respect to the planar surface.

Abstract: A platform for a parallel robot, for acting on an object, including: at least two frames comprising at least two pairs of swivels; at least two bridges that are connected to each of the frames respectively by four hinges which are substantially parallel to an axial direction (V); and a base to be connected to an effector, which is suitable for acting on the object. The base is connected to each bridge respectively by at least one hinge which is oriented along a connection axis which is substantially parallel to the axial direction.

Abstract: A positioning device includes a planar surface, a mobile platform configured to slide along the planar surface and cables for positioning and moving the mobile platform along the planar surface. The mobile platform includes a planar bearing system located at the side of the mobile platform configured to slide along the planar surface. The planar bearing system includes a component for pushing the mobile platform against the planar surface; and a component for allowing sliding of the planar bearing system with respect to the planar surface.

Abstract: A platform for a parallel robot, for acting on an object, including: at least two frames comprising at least two pairs of swivels; at least two bridges that are connected to each of the frames respectively by four hinges which are substantially parallel to an axial direction (V); and a base to be connected to an effector, which is suitable for acting on the object. The base is connected to each bridge respectively by at least one hinge which is oriented along a connection axis which is substantially parallel to the axial direction.

Abstract: The invention refers to a two degree-of-freedom parallel manipulator that comprises a frame (1), four frame arms (3, 3?, 4, 4?), four platform arms (5, 5?, 5?, 5??), each frame and platform arm (3, 3?, 4, 4?, 5, 5?, 5?, 5??) with a first end and a second end, a platform (6) and a end-effector, being the first end of each frame arm (3, 3?, 4, 4) linked to the frame (1) and being the second end of each frame arm (3, 3?, 4, 4?) linked to a first end of a platform arm (5, 5?, 5?, 5??), being the second end of each platform arm (5, 5?, 5?, 5??) linked to the platform (6), and being the platform (6) linked to the end-effector. In said manipulator a first platform arm (3) and a second frame arm (3?) are actuated independently one from the other and a third frame arm (4) and a fourth frame arm (4?) are linked to the frame (1) with revolute joints (8), being the rotation of the third and fourth frame arms (4, 4?) coupled.

Abstract: The invention relates to a high-speed parallel robot with four degrees of freedom comprising four kinematic chains (1) articulated at one of their ends to a mobile platform (4) carrying the tool (5) and at their other end, through a rotational joint (2), to an actuador integral with a base plate (3). The mobile platform (4) is formed by four members (11), (11?), (12), (12?), linked together by means of articulated linkages (13), at least two of the members being parallel to each other, forming an articulated mobile platform with one degree of freedom in the plane of the mobile platform. The actuators are positioned with any orientation in the base plate (2) and preferably at 45°, 135°, 225° and 315°.

Abstract: The invention relates to a high-speed parallel robot with four degrees of freedom comprising four kinematic chains (1) articulated at one of their ends to a mobile platform (4) carrying the tool (5) and at their other end, through a rotational joint (2), to an actuador integral with a base plate (3). The mobile platform (4) is formed by four members (11), (11?), (12), (12?), linked together by means of articulated linkages (13), at least two of the members being parallel to each other, forming an articulated mobile platform with one degree of freedom in the plane of the mobile platform. The actuators are positioned with any orientation in the base plate (2) and preferably at 45°, 135°, 225° and 315°.

Abstract: A four-degree-of-freedom parallel robot capable of displacing a traveling plate with four degrees of freedom at a high speed and a high acceleration and positioning the traveling plate with high rigidity and high precision. The four-degree-of-freedom parallel robot has four actuators fixed to a base, four parallel linkages each of which is coupled at its upper end to a tip end of an arm of each of the actuators through a kinematic element such as a universal joint, and a traveling plate whose four corners are coupled to lower ends of the parallel linkages through kinematic elements. By controlling the actuators, a main member of the traveling plate is displaced with four degrees of freedom, i.e., translated in all directions and rotated around a predetermined axis. Only axial forces are applied to rods constituting the parallel linkages. Thus, the traveling plate can be positioned at a high speed and with high rigidity as well as high precision.