![]() ![]() They can also handle workpieces of a wide variety of shape and sizes and can accommodate dimensional variations. The parallel gripper type is the most commonely used as custom grippers are easy to design and installation is straight forward due to only one axis of motion. Common ones are discussed below: Parallel gripperĪs the name suggests, the parallel gripper moves its fingers parallelly with respect to the gripper body. The pneumatic grippers can be categorized based on motion of gripping fingers, gripping mechanism and configurations. When compressed air is connected to the front cylinder (Figure 2 Bottom) it pushes the piston backward, which closes the pneumatic gripper’s fingers. ![]() Therefore, when compressed air is connected to the back cylinder (Figure 2 Top) it pushes the piston forward, which opens the pneumatic gripper’s fingers. This mechanism can be used in pick-and-place operation or to change the orientation of the object.įigure 2 shows the operating principle for a pneumatic 2 finger angular gripper. As the air pressure moves the piston up and down, the fingers open or close in a parallel or angular manner. The piston rod is connected to the gripping fingers. As the compressed air is introduced into the cylinder, it powers the piston rod. The gripper is connected to the compressed air supply system. Figure 2: Operating principle of pneumatic 2 finger angular gripper ![]()
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