Systems, methods and associated components for robotic manipulation of physical objects
Systems, methods, and associated components for robotic manipulation of physical objects. The physical objects include three-dimensional gripping features configured to be detected by an optics system and gripped by an end-effector of a robotic arm with sufficient gripping force to move the physical objects against the force of gravity. Sets of the physical objects can have different sizes and shapes and, in some examples, include identically constructed three-dimensional gripping features.
1. A robotic manipulation system, comprising:
a first physical object and a second physical object having different sizes and/or different shapes and including three-dimensional gripping features of identical construction, each gripping feature including a cavity defined by an interior surface of a corresponding one of the physical objects, the cavity being a tubular, conical, or frusto-conical blind cavity recessed from an exterior surface of the corresponding physical object, the cavity being open on one side of the cavity only;
a robotic arm, the robotic arm including:
an end effector configured to selectively grip each three-dimensional gripping feature when the corresponding physical object is positioned in a three-dimensional reference space; and
a plurality of actuators configured to cause the end effector to translate and rotate within the three-dimensional reference space;
an optics system configured to locate the three-dimensional gripping feature relative to the three-dimensional reference space and provide position output of the three-dimensional gripping feature; and
a controller configured to, based on the position output, control the actuators to:
i) move the end effector such that the end effector is aligned with each three-dimensional gripping feature; and
ii) insert the end effector into the cavity through the one side to grip each three-dimensional gripping feature with the end effector.
2. The system of claim 1 , wherein the robotic arm is configured such that the end effector grips each three-dimensional gripping feature with sufficient gripping force to move the corresponding physical object with the end effector.
3. The system of claim 1 , wherein the robotic arm includes a gripping actuator configured to cause the end effector to grip each three-dimensional gripping feature.
4. The system of claim 3 ,
wherein the end effector includes a plurality of fingers; and
wherein the gripping actuator is configured to move the plurality of fingers relative to each other within each gripping feature.
5. The system of claim 1 , wherein each three-dimensional gripping feature includes at least three cavities.
6. The system of claim 1 , wherein each cavity is tubular.
7. The system of claim 1 , wherein each physical object includes one or more orientation indicia, and wherein the optics system is configured to detect the one or more orientation indicia and, based on a location and/or orientation of the one or more orientation indicia relative to the three-dimensional gripping feature of the corresponding physical object, determine a rotational orientation of the three-dimensional gripping feature relative to the three-dimensional reference space.
8. The system of claim 1 , wherein the end effector comprises a suction member, and wherein the system includes a vacuum generator configured to generate a suction force at the suction member.
9. The system of claim 1 , wherein the physical objects have different weights.