One of the simplest types of robot gripper uses two tongs or pinchers. Because of its construction, it is called a two-pincher gripper.

The drawing shows a simple version of a two-pincher gripper. The claws are attached to a frame, and are normally held apart by springs. The claws are pulled together by means of a pair of cords that merge into a single cord as shown. This allows the gripper to pick up small, light objects.To release the grip, the cord is let go.

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