Robot hand and method for automatically placing an element
AssigneeRichard Bergner Verbindungstechnik GmbH & Co. KG
InventorsGerd Hartrampf, Christian Böhner, Klaus Dehlke
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Abstract
The invention concerns an industrial robot (4) comprising a machining tool (2) attached to one hand (3) of the robot, designed to perform a hydraulic-driven movement relative to the hand (3) and connected therefor to a hydraulic unit (10). The hydraulic unit (10) is placed directly on a mobile part of the robot, in particular directly on the robot hand (3). Therefore there is no more need for hydraulic supply lines along the arm of the robot. Further, when the robot hand (3) changes tool, no separation of hydraulic lines is required. The machining tool (2) is in particular a device for placing blind rivets, thereby enabling an entirely automated process for placing blind rivets.
Claims29
A robot hand, comprising:
- a machining tool designed to perform a hydraulically-generated movement;
- an hydraulic unit connected to said machining tool, said hydraulic unit having an electric motor and at least one pump driven by said electric motor for generating a pressure;
- an accumulator space with a variable compensating volume enclosing hydraulic liquid in a gas-free state, said accumulator space communicating with said pump to supply said pump with the hydraulic liquid.
Dependencies are inferred from the claim text.