Systems and methods for object processing using a passively folding vacuum gripper
An end-effector for a programmable motion device is disclosed. The end effector includes a body that includes a contact portion, the body providing an open interior through which a vacuum may be provided to the contact portion, and the body including at least one feature that is adapted to facilitate the contact portion to become substantially non-planar while grasping.
1. An end-effector for a programmable motion device, the end-effector comprising a body that includes a contact portion, said body providing an open interior through which a vacuum is provided to the contact portion, the contact portion having a plurality of apertures defined therein through which the vacuum is provided to engage an object, and including at least one feature that is adapted to facilitate the contact portion to become substantially non-planar while grasping the object, wherein the at least one feature comprises one or more hinge portions, each hinge portion comprising a series of apertures provided in a line that defines a bend path in the contact portion.
2. The end-effector as claimed in claim 1 , wherein the one or more hinge portions includes at least three hinge portions.
3. The end-effector as claimed in claim 1 , wherein the body includes a plurality of nodules.
4. The end-effector as claimed in claim 1 , wherein the body includes a compliant material.
5. The end-effector as claimed in claim 1 , wherein the plurality of apertures defined in the contact portion provides a larger area of opening at a central region thereof than an area of opening at the periphery thereof.
6. The end-effector as claimed in claim 1 , wherein the plurality of apertures defined in the contact portion includes larger diameter apertures at a central region of the contact portion as compared to diameters of apertures at the periphery of the contact portion.
7. The end-effector as claimed in claim 1 , wherein the periphery of the contact portion is generally triangular in shape.
8. A programmable motion device including the end-effector of claim 1 .
9. An object processing system including the programmable motion device of claim 8 .
10. An end-effector for a programmable motion device, said end effector comprising a body that includes a contact portion, said body providing an open interior through which a vacuum may be provided to the contact portion, and said body including at least one feature that is adapted to facilitate the contact portion to bend along at least one bend path while grasping, wherein the contact portion defines a plurality of apertures therein, and wherein a central region of the contact portion has larger diameter apertures as compared to apertures at the periphery of the contact portion.
11. The end-effector as claimed in claim 10 , wherein the at least one feature is provided as a hinge-portion of the contact portion.
12. The end-effector as claimed in claim 11 , wherein the hinge portion includes a concavity in the contact portion that facilitates bending.
13. The end-effector as claimed in claim 12 , wherein the concavity is formed in an inner surface of the contact portion that faces the open interior.
14. The end-effector as claimed in claim 10 , wherein the at least one feature is provided as at least two hinge portions.
15. The end-effector as claimed in claim 10 , wherein the at least one feature is provided as at least three hinge portions.
16. The end-effector as claimed in claim 10 , wherein the at least one feature is provided as a series of apertures in the contact portion.
17. The end-effector as claimed in claim 16 , wherein the series of apertures are provided in a line that defines a bending portion of the contact portion.
18. The end-effector as claimed in claim 10 , wherein the at least one feature is provided as a nodule.
19. The end-effector as claimed in claim 18 , wherein the body includes a plurality of nodules.
20. The end-effector as claimed in claim 10 , wherein the body includes a compliant material.
21. The end-effector as claimed in claim 10 , wherein the plurality of apertures defined in the contact portion provides a larger area of opening at the central region of the contact portion than an area of opening at the periphery thereof.
22. A programmable motion device including the end-effector of claim 10 .
23. An object processing system including the programmable motion device of claim 22 .
24. A method of grasping an object with an end-effector that includes a body that provides an open interior that is coupled to a vacuum, said method comprising:
contacting a contact portion of the body with the object, the contact portion having a plurality of apertures defined therein;
applying a vacuum through the plurality of apertures in the contact portion to the object to primarily engage the object through tension force between the contact portion and the object; and
permitting the contact portion of the body to bend along at least one bend path while grasping the object such that the object becomes primarily engaged with the object via a shear force that is greater than the tension force between the contact portion and the object,
wherein the at least one bend path is defined by at least one hinge portion that comprises a series of apertures in the contact portion.
25. The method as claimed in claim 24 , wherein the at least one hinge portion includes at least three hinge portions.
26. The method as claimed in claim 24 , wherein the plurality of apertures defined in the contact portion provides a larger area of opening at a central region of the contact portion than an area of opening at the periphery thereof.
27. The method as claimed in claim 24 , wherein the plurality of apertures defined in the contact portion includes larger diameter openings at a central region of the contact portion as compared to diameters of apertures at the periphery of the contact portion.
28. The method as claimed in claim 24 , wherein the periphery of the contact portion is generally triangular in shape.
29. A method of grasping an object with an end-effector that includes a body that provides an open interior that is coupled to a vacuum, said method comprising:
contacting a contact portion of the body with the object, the contact portion having a plurality of apertures defined therein;
applying a vacuum through the plurality of apertures in the contact portion to the object to primarily engage the object through tension force between the contact portion and the object; and
permitting the contact portion of the body to bend along at least one feature that defines a bend path in the contact portion while grasping the object such that the object becomes primarily engaged with the object via a shear force that is greater than the tension force between the contact portion and the object,
wherein a central region of the contact portion has larger diameter apertures as compared to apertures at the periphery of the contact portion.
30. The method as claimed in claim 29 , wherein the at least one feature is provided as a hinge-portion of the contact portion.
31. The method as claimed in claim 30 , wherein the hinge portion includes a concavity in the contact portion that facilitates bending.
32. The method as claimed in claim 31 , wherein the concavity is formed in an inner surface of the contact portion that faces the open interior.
33. The method as claimed in claim 29 , wherein the at least one feature is provided as at least two hinge portions.
34. The method as claimed in claim 29 , wherein the at least one feature is provided as at least three hinge portions.
35. The method as claimed in claim 29 , wherein the bend path is provided as a series of apertures in the contact portion.
36. The method as claimed in claim 29 , wherein the plurality of apertures defined in the contact portion provides a larger area of opening at a central region of the contact portion than an area of opening at the periphery of the contact portion.
37. The method as claimed in claim 29 , wherein the periphery of the contact portion is generally triangular in shape.