Matrix gripper FMG: easy to operate and flexible in use

The FMG matrix gripper is an innovative solution for the automated handling of various workpieces. The innovative combination of modular design, high energy efficiency and digital networking makes the FMG an indispensable tool for modern production and logistics processes.

The increasing demand for customized products, for example in nesting or sheet metal working, is leading to more and more applications with high variation and low volumes. This brings challenges for production companies: they often have to adapt processes and machines to the various workpieces. This makes production complex and time-consuming.

With the FMG matrix gripper, Schmalz has developed an innovative solution for the automated handling of flat and predominantly suction-tight workpieces. Thanks to its modular construction, the FMG can grip almost any geometry. The gripper size can easily be expanded (or reduced) with additional modules as required. The gripper modules with twelve suction locations each weigh less than one kilogram and can be locked into any setup. For this purpose, according to the desired setup, a special flange plate is made on which the FMG modules are mounted. Optional proximity switches increase process reliability.

The suction cups can be activated individually and selectively with compressed air. This means that the suction tips are extended by 10 millimeters using a spring tappet.

At the same time, a channel is opened that directs the external vacuum to the workpiece. In this way, only the suction cups needed to grip the geometry come into contact with the workpiece. This prevents the wrong parts from being sucked in. When the valve is turned off, the suction point is withdrawn and turned off.

Leaks at inactive suction points are excluded. The integrated air-saving control ensures low energy consumption and a constant vacuum supply. The system fixes the workpiece thanks to the auto-hold function, even in the event of a power failure. The standardized suction cup interface allows users to use different suction cups with diameters from 12 to 28 millimeters.

A higher-level machine controller or camera sensor provides the data on gripping points to activate the suction cups based on the geometry and position of the workpieces. Alternatively, Schmalz offers a complete system, including camera and software, for recognizing the products and calculating the gripping points. With simultaneous control, the system is ready for new items in less than a second.

The matrix gripper requires an external vacuum supply. Ideal for this, for example, is the SCTSi compact terminal, which controls the gripper system centrally and can control up to eight FMG modules via IO-Link. The terminal's individual ejector discs provide the system with the required 50 liters of suction capacity per minute for each unit. The air-saving function reduces compressed air consumption by up to 80 percent.