qb SoftClaw

qbrobotics has once again developed, thanks to its patented Variable Stiffness system, a one-of-a-kind gripper.

At first glance it looks like a traditional gripper, but it is far smarter and intrinsically capable of adjusting the applied force based on the object being grasped. A secure and precise grip, able to lift an iron sphere without dropping it or a soft pastry without damaging it: you simply need to “tell it” whether to be Soft, Medium, or Strong.

Perfectly compatible with the UR+ ecosystem, when paired with a UR cobot it becomes a true plug-and-play solution. Say goodbye to long programming strings: just three words — Soft, Medium, Strong.

The gripper is built on a platform equipped with motors, electronics, and an elastic system; on the rear side, it features a mechanical interface compliant with ISO 9409-1 and a standard electronic connector for integration with any robotic arm.

The movable finger is driven by the actuator shaft, allowing for a gentle motion to grasp objects without causing damage, or for a firmer grip by increasing stiffness; the fixed finger, on the other hand, is directly connected to the frame.

The gripper operates through deflection control between the equilibrium position and the output shaft. Thanks to this control approach, objects of different sizes can be grasped while maintaining the same closure reference (for example, fully closed) and the same stiffness in every position.