Dual spherical ball clamp
A dual spherical ball clamp is employed to allow for pivotal adjustment of a robotic arm to support an object in a desired position. The clamp is formed by a pair of clamp halves bolted together to form a pair of sockets. Each socket receives a spherical ball of an arm. The faces of the dual spherical ball clamp are slightly inclined outwardly with respect to the lower surface of the dual spherical ball clamp to provide for additional range of motion of the arms.
1. A ball and socket assembly for a robotic arm, comprising:
a socket component including a first clamp half and a second clamp half that are securable together to form a pair of sockets, each of said first clamp half and said second clamp half having a first outer face generally defining a first plane and a second outer face generally defining a second plane that is non-parallel with said first plane, wherein each of the first clamp half and the second clamp half form a portion of each of the pair of sockets;
a first ball receivable partially within said first socket such that said first ball extends through said first plane; and
a second ball receivable partially within said second socket such that said second ball extends through said second plane.
2. The robotic arm as recited in claim 1 , wherein each of said first clamp half and said second clamp half is a single, distinct piece.
3. The robotic arm as recited in claim 1 wherein movement of one of said balls in one of said pair of sockets pivotally adjusts a position of said arm.
4. The robotic arm as recited in claim 1 wherein each ball includes an arm that extends there from, wherein one of said arms can be pivoted relative to the other of said arms.
5. The robotic arm as recited in claim 1 wherein said pair of sockets are made of aluminum.
6. The robotic arm as recited in claim 1 wherein each of said pair of sockets cover move than one half of a surface area of one of said balls.
7. The robotic arm as recited in claim 1 wherein said balls have a ball diameter of approximately 1.75 inch and said arms have an arm diameter of approximately 1.25 inch.
8. The robotic arm as recited in claim 1 wherein said balls are made of a ball material and said pair of sockets are made of a socket material, wherein said ball material is harder than said socket material.
9. The robotic arm as recited in claim 1 wherein said first clamp half and said second clamp half are secured together by a pair of bolts located between said pair of sockets.
10. The robotic arm as recited in claim 1 wherein said first clamp half and said second clamp half are secured together by four bolts, one of said four bolts being located over one of said pair of sockets, another of said four bolts being located under said one of said pair of sockets, one of said four bolts being located over the other of said pair of sockets, and one of said four bolts being located under said other of said pair of sockets.
11. The robotic arm as recited in claim 1 wherein a gap is defined between said first clamp half and said second clamp half.
12. The robotic arm as recited in claim 11 wherein said gap is adjustable.
13. The robotic arm as recited in claim 1 wherein said robotic arm includes a plurality of said ball and socket assemblies.
14. The robotic arm as recited in claim 1 wherein an angle defined between each of said pair of faces and a plane defined by said lower surface is approximately 75°.
15. The robotic arm as recited in claim 1 wherein said balls are serrated.
16. The robotic arm as recited in claim 1 wherein said arm of each of said pair of ball components has a range of motion of 90°.