Flexure gripping device
A gripping device comprises multiple flexures configured to couple predetermined linkages, a fixed linkage, and an input linkage disposed partially above the fixed linkage. The input linkage comprises a first end portion and a second end portion. Each end portion comprises an output linkage comprising a first end portion and a second end portion, a jaw disposed on the first end portion of the output linkage, and an initial damper linkage disposed below the fixed linkage. The initial damper linkage is coupled with the fixed linkage, the corresponding end portion of the input linkage, and the second end portion of the output linkage. At least one auxiliary damper linkage is disposed below the fixed linkage and adjacent to the initial damper linkage. The at least one auxiliary damper linkage is coupled to the fixed linkage and the second end portion of the output linkage.
1. A gripping device comprising:
a fixed linkage;
an input linkage disposed at least partially above the fixed linkage, the input linkage comprising a first input end portion and a second input end portion, wherein each input end portion comprises:
an output linkage comprising a first output end portion and a second output end portion,
a jaw disposed on the first output end portion of the output linkage, and
an initial damper linkage disposed below the fixed linkage, the initial damper linkage coupled with the fixed linkage, a corresponding input end portion of the input linkage, and the second output end portion of the output linkage;
a plurality of flexures, wherein each respective flexure in the plurality of flexures is configured to couple two or more linkages together; and wherein
the flexure gripping device is formed from a deformable material.
2. The gripping device of claim 1 , wherein for each respective input end portion of the input linkage the plurality of flexures includes:
a first flexure that couples the input linkage and the respective initial damper linkage,
a second flexure that couples the respective initial damper linkage and the fixed linkage, and
a third flexure that couples the respective initial damper linkage and the output linkage.
3. The gripping device of claim 1 , wherein at least one auxiliary damper linkage is disposed below the fixed linkage and adjacent to the initial damper linkage, the at least one auxiliary damper linkage coupled to the fixed linkage and the second output end portion of the output linkage.
4. The gripping device of claim 3 , wherein for each respective auxiliary damper linkage the plurality of flexures includes:
a fourth flexure that couples the respective auxiliary damper linkage and the fixed linkage, and
a fifth flexure that couples the respective auxiliary damper linkage and the output linkage.
5. The gripping device of claim 1 , wherein a distance travelled between an OPEN state and a CLOSED state of each jaw is 15 millimeters or less.
6. The gripping device of claim 1 , wherein a distance travelled between an OPEN state and a CLOSED state of each jaw is 4 millimeters or less.
7. The gripping device of claim 1 , wherein the gripping device is fabricated from a single piece of material.
8. The gripping device of claim 1 , wherein the gripping device is fabricated by additive manufacturing or water jet cutting.
9. The gripping device of claim 1 , wherein the gripping device further comprises a mount configured to attach the gripping device to transport mechanism.
10. The gripping device of claim 1 , wherein each jaw is selected from the group consisting of a tentacle, a cup, or a cone.