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KUKA Robo Frame
DESCRIPTION
In the ROBO FRAME system, the robot grips the prepared laminate on the glass side and guides it precisely into the prepared frame parts. In a sequence of four steps, the long frame parts are joined first, then the short frame parts into which the corner connectors have already been inserted automatically. Addi-tional clamps and a level support plate ensure that the forces applied to the laminate during assembly of the frame parts are kept to a minimum, thereby preventing deformation.
The ROBO FRAME unit consists of the KUKA robot with framing gripper, a sta-tion for insertion of corners, two framing tables, a scratchfree rail feeding sys-tem, an optional vertical buffer for one hour’s production volume, an optional corner key separator and the wetting channel for the adhesive tape.
At 1.2 t, the joining forces that can be achieved are comparable to those of a conventional frame press. The process is not rigidly configured for use of dou-ble-sided adhesive tape so other sealing methods are also possible.
The tools can be adapted to various frame sizes. Furthermore, the flexibility of the KUKA robot allows combination with additional automation tasks, thus facili-tating scalability of the system, e.g. for lines with an annual power output of 50 or 100 MW.
INNOVATIVE ASPECT
The framing of solar modules today typically involves slightly overdimensioned frames in order to accommodate the tolerances of the glass and the frame parts. During the joining process, this means that the laminate must not be pressed right up against the frame, but must be joined according to specified dimen-sions. The KUKA robot combines high forces with the required precision and is thus ideally suited to this task. As a tried-and-tested industrial product, manufac-tured in large numbers, the KUKA robot has the added advantage of guaranteed high availability. This, as is well known, is a decisive factor in the actual throughput of an automatic system.
BENEFIT
The main advantages of this production process are precision and high availability. Leading to improved quality of the end product, and greater throughput of the production system as a result of the prevention of deformation and scratching.
With our concept we are putting less stress on the glass because it is controlled by displacement and not by force. The process is more accurate because the part tolerance has less influence.
Further we are able to do the whole framing process with only one robot what means that we have a real small footprint. And because of our flexible concept it is possibe to use the KUKA RoboFrame with different glass sizes only by chang-ing the gripper.
What makes ROBO FRAME stand out from competing systems on the market is the ability to process materials with large tolerance ranges reliably, thereby en-suring high quality of the end product. Particularly with a view to costs for the input materials, there is a direct correlation between quality or tolerances and costs.
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