The Franka Emika collaborative robot (cobot) is a lightweight, extremely sensitive, smart robot that can do repetitive and often monotonous activities such as precisely regulated fitting, screwing, and inspection. The robot is designed to function similarly to a human arm, with exceptional sensitivity in each of its seven joints.
The Franka Emika cobot end joint allows for limitless rotation, which is ideal for screw driving. It can be used directly in a screw driving application due to the built-in force/torque sensing. The force and speed with which to drive in the screw are automatically calculated after inputting the screw length and torque value into the cobot's teach pendant. The Franka Emika cobot can conduct operations with a precision of 0.1 mm. Screws with maximum tightening pressures ranging from M1.6 to 12Nm can be used.
As seen in the video, the robot takes individual screws from a screw feeder and utilizes a nut runner to drive them into four positions on a terminal box for assembly. Once all four screws are in place, the robot inspects to make sure that all four screws are present, and placed in their precise locations.
Franka Emika is a cobot that performs precise inspections. The cobot inspects the tightening procedure to improve efficiency and efficacy. Screws should be tightened with the same pressure and tension each time, maintaining consistency in quality. The cobot's outstanding sensitivity makes it possible to regulate all process-relevant screwdriving parameters like seating control strategy and torque/angle of rotation. It then performs a clamping torque inspection and records the screwdriving findings to guarantee that precision and accuracy have been maintained throughout.
The clamping torque inspection capability makes the cobot establish a final target torque and inspect the tightening process continuously to ensure that the clamping torque remains consistent. When screw connections fail, the cobot features an automatic error handling capability that allows it to properly adjust the screw connections.
Franka Emika cobot has been designed to make screwing solutions simple and convenient to set up, it also ensures proactive insertion and positioning of the screws, as well as the application of constant and correct forces during screwing.