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US 9,085,081 B2Granted
Machine tools with non-rigid robot device using inertial stiffening
OwnerStephen Lang Dickersoninventor
Life of this patent
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Abstract
A representative machine comprises a non-rigid robotic device having a tool head; and a rigid inertial stiffening system that is part of a tool head and includes a mass to provide precise position of the tool head. The rigid inertial stiffening system achieves high positional precision of the tool head, in the face of large disturbing forces by locally accelerating the mass to counter the disturbing forces.
Claims14
A machine comprising:
- a robotic device having a tool head;
- a mass that is attached to the tool head;
- at least one servo device that facilitates creating the acceleration of the mass;
- and
- at least one drive motor that is designed to move the tool head,
- wherein the at least one drive motor facilitates achieving high positional precision of the tool head, in the face of large disturbing forces by locally accelerating the mass to counter the disturbing forces,
- wherein the mass is attached to another positioning device that has fewer degrees of freedom than that used by the tool head.
4 more elements
A rigid inertial stiffening system comprising:
- a tool head of a robotic device;
- a mass that is attached to the tool head, wherein the mass is locally accelerated to counter large disturbing forces to achieve high positional precision of the tool head, in the face of the large disturbing forces;
- and
- at least one servo device that is designed to move the tool head and provide for stiffness, resulting in at least two degrees of freedom stiffening,
- wherein the at least one servo device accelerates the mass to counter the disturbing forces,
- wherein the mass is attached to another positioning device that has fewer degrees of freedom than that used by the tool head.
3 more elements
A machine comprising:
- a robotic device;
- a mass that is coupled to the robotic device;
- a tool head that is coupled to the mass;
- at least one servo device that facilitates creating the acceleration of the mass;
- and
- at least one drive motor that is designed to move the mass,
- wherein at least one drive motor facilitates in accelerating the mass to counter disturbing forces,
- wherein the mass is attached to another positioning device that has fewer degrees of freedom than that used by the tool head.
5 more elements
Dependencies are inferred from the claim text.