An example gripper may include: a base; two or more fingers attached to the base, with each finger being movable towards, and away from, one or more others of the fingers; and one or more ports at the base or at one or more of the fingers to provide suction through a vacuum.
대표청구항▼
1. A gripper comprising: a base;two or more fingers attached to the base, each of the two or more fingers being configured to move inward towards at least one other of the two or more fingers to enable grasping of an object by the two or more fingers; andone or more ports located on a pad of at leas
1. A gripper comprising: a base;two or more fingers attached to the base, each of the two or more fingers being configured to move inward towards at least one other of the two or more fingers to enable grasping of an object by the two or more fingers; andone or more ports located on a pad of at least one of the fingers facing at least one other finger to grasp the object, the one or more ports to provide suction on the pad to aid the two or more fingers in grasping the object;wherein suction through the one or more ports is controllable based, at least in part, on a grasping force produced by the at least one finger and the at least one other finger. 2. The gripper of claim 1, wherein each of the two or more fingers comprises multiple parts interconnected at, and movable about, one or more joints. 3. The gripper of claim 1, wherein each of the two or more fingers has an inner surface facing one or more others of the fingers and an outer surface facing away from one or more others of the fingers; and wherein one or more ports are located on tips of the fingers. 4. The gripper of claim 1, wherein each of the two or more fingers has an inner surface facing one or more others of the fingers and an outer surface facing away from one or more others of the fingers; and wherein one or more ports are located on outer surfaces of the fingers. 5. The gripper of claim 1, wherein at least one of the two or more fingers has a tip that can be configured to face away from the base; wherein at least one of the one or more ports is located on the tip. 6. The gripper of claim 3, 4, or 5, wherein at least one port is on the base. 7. The gripper of claim 1, wherein each of the two or more fingers has an inner surface facing others of the fingers, the inner surface comprising a pad, an outer surface facing away from others of the fingers, and a tip that can be configured to face away from the base; and wherein, for each of the fingers, at least one port is located on at least two of: the inner surface, the outer surface, and the tip. 8. The gripper of claim 7, wherein at least one port is also on the base. 9. The gripper of claim 1, further comprising: one or more vacuum sources to produce vacuum for the one or more ports; andone or more controllers to control the vacuum sources to produce the vacuum. 10. The gripper of claim 9, wherein the one or more controllers are configured to control the one or more vacuum sources to apply vacuum to individual ports independently. 11. The gripper of claim 1, further comprising a cannula disposed in the base that is extendible from the base, and retractable into the base. 12. The gripper of claim 11, further comprising: a port on the cannula to provide suction through a vacuum. 13. The gripper of claim 12, wherein the port is on a tip of the cannula. 14. The gripper of claim 1, further comprising a cannula in at least one of the fingers, the cannula being extendible from the at least one of the fingers, and the cannula being retractable into the at least one of the fingers. 15. The gripper of claim 14, further comprising: a port on the cannula to provide suction through a vacuum. 16. The gripper of claim 15, wherein the port is on a tip of the cannula. 17. The gripper of claim 1, wherein each finger is bendable towards, and away from, an interior of the gripper. 18. Automatic test equipment (ATE) comprising: one or more instruments to test a device under test (DUT); anda gripper to grasp the DUT during movement of the DUT relative to an interface to the one or more instruments, the gripper comprising: a base;two or more fingers attached to the base, each of the two or more fingers being interconnected at, and movable about, one or more joints, each of the two or more fingers being configured to move inward towards at least one other of the two or more fingers to enable grasping of an object by the two or more fingers; andone or more ports on one or more pads of the fingers, each finger facing at least one other finger to grasp the object, each port to provide suction on a pad to aid the two or more fingers in holding the object;wherein suction through the one or more ports is controllable based, at least in part, on a grasping force produced by at least one finger and the at least one other finger. 19. The ATE of claim 18, wherein the object is the DUT. 20. A gripper comprising: a base;fingers attached to the base, each finger being movable towards, and away from, one or more others of the fingers to produce force to grasp an object;one or more cannulas disposed on, and extendible from, a tip of one or more corresponding ones of the fingers; anda port on at least one of the one or more cannulas, the port to provide suction through a vacuum. 21. The gripper of claim 20, wherein each of the fingers has an inner surface facing one or more others of the fingers and an outer surface facing away from one or more others of the fingers; and wherein one or more ports are located on inner surfaces of the fingers. 22. The gripper of claim 20, wherein each of the fingers has an inner surface facing one or more others of the fingers and an outer surface facing away from one or more others of the fingers; and wherein one or more ports are located on outer surfaces of the fingers. 23. The gripper of claim 20, wherein at least one of the fingers has a tip that is movable to face away from the base; wherein at least port is located on at least one tip. 24. The gripper of claim 20, further comprising: one or more vacuum sources to produce vacuum for one or more ports; andone or more controllers to control the vacuum sources independently.
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