G05B2219/37051

Safe Collaborative Gripping Device
20210146534 · 2021-05-20 ·

A method for controlling a gripping device (2) for a robot (20) comprising two or more gripping structures (4, 4′) movably arranged relative to each other and being configured to grip an object (8, 16) is disclosed. The method comprises actively restricting the displacement (ΔD) of at least one of the two or more gripping structures so that said displacement is less than or equal to a predefined maximum displacement (ΔD.sub.max). The method comprises the steps of detecting when at least one of the gripping structures is in contact with the object and increasing the force (F) exerted by at least one of the two or more gripping structures to the object from a predefined first level (F.sub.1) to a predefined second level (F.sub.2) when it has been detected that at least one of the two or more gripping structures is in contact with the object.