Tool-free quick jaw change

With the Tandem BWA power clamping blocks from Schunk, Lauffen, it is possible to clamp small batch sizes of different workpieces fully automatically, according to the supplier.

To expand the possibilities of autonomous machining processes, application specialist Schunk has developed a suitable module. With the new BWA quick jaw change system, the clamping jaws of the tandem power clamping blocks can now be changed manually or fully automatically via a robot. The system will be available as standard for the pneumatic and hydraulic 2- and 3-jaw clamping blocks in sizes 100, 140, 160 and 250.

The quick-change jaws contained in the clamping devices can be changed automatically in seconds without the use of tools. Schunk also offers the matching PGN-plus-P pneumatic parallel gripper for automated assembly. Its gripper fingers are equipped with special, spring-loaded pick-up pieces. This allows the top jaws to be automatically unlocked, picked up and reinserted with a positive fit. The application can therefore be flexibly adapted to new clamping tasks at any time. According to the company, the Tandem BWA also enables five times faster manual changes compared to conventional jaw changes.

Monitoring options are integrated into the clamping devices: in addition to the patented dynamic pressure monitoring for the basic jaw positions "open" and "closed", monitoring of the compressed air transfer to the clamping jaw is also already integrated. This allows the customer to check the workpiece system or clean the clamping surfaces.

All tandem power clamping blocks promise consistently high clamping forces with a compact design and optimum accessibility in 5-sided machining, even in the tightest of spaces. Thanks to maximum flexibility and short reaction times, they increase competitiveness in all industries. In addition to the power clamping block and clamping jaws, the handling components on the robot are also essential for an automated process sequence.