- Surgical robot for tracking and compensating bone movement, the robot comprising: - a robot arm comprising an end-effector, the robot arm further comprising a tool guide at the end-effector, characterized in that the surgical robot further comprises; - a tracker comprising: ∘ a base fixed to the end-effector of the robot arm, ∘ a distal end adapted to be coupled with a clamp, ∘ an assembly of articulated segments (1a-1d) configuring a kinematic chain that connects the base with the distal end, and ∘ encoders associated to the articulated segments (1a-1d) configured to track movement of such articulated segments (1a-1d), wherein a movement of the tracker is allowed and monitored in at least six degrees of freedom; the articulated segments (1a-1d) are made of light paramagnetic material; that exerts a negligible force to the bone; the surgical robot is further provided with a clamp wherein the clamp is removably attached to an articulated segment (1a-1d) of the distal end of the tracker meant to be closer to the patient by means of a kinematic coupling mechanism; and wherein the kinematic coupling mechanism comprises: - a base portion located at the clamp and provided with a first magnet, and - a top portion located at the tracker and fixed to the last articulated segment of the tracker at the distal end, the top portion being provided with a second magnet of opposite polarity to the first magnet. - a robot arm comprising an end-effector, the robot arm further comprising a tool guide at the end-effector, characterized in that the surgical robot further comprises; - a tracker comprising: ∘ a base fixed to the end-effector of the robot arm, ∘ a distal end adapted to be coupled with a clamp, ∘ an assembly of articulated segments (1a-1d) configuring a kinematic chain that connects the base with the distal end, and ∘ encoders associated to the articulated segments (1a-1d) configured to track movement of such articulated segments (1a-1d), - a tracker comprising: ∘ a base fixed to the end-effector of the robot arm, ∘ a distal end adapted to be coupled with a clamp, ∘ an assembly of articulated segments (1a-1d) configuring a kinematic chain that connects the base with the distal end, and ∘ encoders associated to the articulated segments (1a-1d) configured to track movement of such articulated segments (1a-1d), ∘ a base fixed to the end-effector of the robot arm, ∘ a distal end adapted to be coupled with a clamp, ∘ an assembly of articulated segments (1a-1d) configuring a kinematic chain that connects the base with the distal end, and ∘ encoders associated to the articulated segments (1a-1d) configured to track movement of such articulated segments (1a-1d), wherein a movement of the tracker is allowed and monitored in at least six degrees of freedom; the articulated segments (1a-1d) are made of light paramagnetic material; that exerts a negligible force to the bone; the surgical robot is further provided with a clamp wherein the clamp is removably attached to an articulated segment (1a-1d) of the distal end of the tracker meant to be closer to the patient by means of a kinematic coupling mechanism; and wherein the kinematic coupling mechanism comprises: - a base portion located at the clamp and provided with a first magnet, and - a top portion located at the tracker and fixed to the last articulated segment of the tracker at the distal end, the top portion being provided with a second magnet of opposite polarity to the first magnet. a movement of the tracker is allowed and monitored in at least six degrees of freedom; the articulated segments (1a-1d) are made of light paramagnetic material; that exerts a negligible force to the bone; the surgical robot is further provided with a clamp wherein the clamp is removably attached to an articulated segment (1a-1d) of the distal end of the tracker meant to be closer to the patient by means of a kinematic coupling mechanism; and wherein the kinematic coupling mechanism comprises: - a base portion located at the clamp and provided with a first magnet, and - a top portion located at the tracker and fixed to the last articulated segment of the tracker at the distal end, the top portion being provided with a second magnet of opposite polarity to the first magnet. - a base portion located at the clamp and provided with a first magnet, and - a top portion located at the tracker and fixed to the last articulated segment of the tracker at the distal end, the top portion being provided with a second magnet of opposite polarity to the first magnet.