Robotics Pneumatic Gripper

Introduction to Press Gripper

The simplest of the angular design is a basic linkage or toggle mechanism attached to a piston rod, which is then connected to one of the gripper’s jaws. A directly opposing linkage is attached to another jaw. These two opposing jaws then make up the simple angular gripping device. With the appropriately designed and attached tooling, this type of gripper can provide a fairly large force in an angular fashion. The force is generally directly proportional to both the pressure applied to the piston and, usually being a simple lever, the length of the linkage or toggle and the length of tooling attached to the jaws. One of the limitations of this angular style of gripper jaw motion is that lacking sophisticated tooling, it can only efficiently grip a limited size range of parts. A variation of this angular gripper could include a third, or even a fourth jaw, defining a center gripping axis or region.

Another design or style of the pneumatic gripper is the parallel version, which employs one of several different types of mechanisms that convert the piston or its rod motion to a parallel jaw travel.

Speicification

Key Features

1. High Precision and Repeatability – Ensures consistent placement and alignment of parts.

2. Strong and Reliable Grip – Maintains firm holding force during high-speed press operations.

3. Compact and Lightweight Design – Suitable for robotic or multi-axis transfer systems.

4. Durable Construction – Typically made from hardened steel or aluminum alloys for long service life.

5. Customizable Gripping Jaws – Designed according to the shape, thickness, and material of the workpiece.

Working Principle

Press grippers commonly operate using pneumatic, mechanical, or servo-controlled systems:

• Pneumatic grippers use compressed air to open and close gripping fingers.

• Mechanical grippers rely on levers or cams synchronized with the press cycle.

• Servo grippers allow precise force and position control for delicate operations.

The gripping mechanism is synchronized with the press stroke, ensuring the gripper picks up the workpiece after one forming step and transfers it to the next die station smoothly and safely.

Applications

• Automotive manufacturing – Handling car body panels, brackets, and structural components.

• Appliance and electronics industries – Transferring stamped sheet parts.

• Aerospace and metal fabrication – Moving precision-formed components.

• Progressive and transfer press lines – Automating multi-stage stamping operations.

Advantages

• Improves efficiency and production speed in press operations.

• Reduces manual handling and enhances workplace safety.

• Minimizes scratches, deformation, and damage to materials.

• Enables high consistency and repeatability in part positioning.

• Compatible with fully automated robotic press systems.