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Jack H.Integration and automation of manufacturing systems.2001.pdf
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page 345

11.1.3.1 - Adhesive Grippers

•Can handle fabrics and other lightweight materials

•These grippers are basically a sticky surface on the end of the robot

•As the adhesive gripper is repeatedly used, it loses stickiness, but a tape roll can be used to refresh the sticky surface.

11.1.4 Expanding Grippers

•Some parts have hollow cavities that can be used to advantage when grasping.

•A bladder can be inserted into a part, and then inflated. This forms a friction seal between the two, and allows manipulation. When done the pressure is released, and the part freed.

page 346

• Expanding grippers can also be used when gripping externally.

bladders inflate inwards

11.1.5 Other Types Of Grippers

• Most grippers for manipulation are sold with mounts so that fingers may be removed, and replaced.