Henjo Plåtteknik AB, supplier of sheet metal products and complete welded assemblies, situated in Ljungby in Sweden, has been utilising welding robots for a longer time.
When the company began searching for a new welding robot four years ago, offline programming was the most important requirement. Kalle Meijer, production manager at Henjo, “We found the right solution in the Panasonic welding robot system with integrated offline programming. Ever since, thanks to offline programming, we weld small batch numbers without having any downtime!”
Kalle Meijer, “Offline programming was at the top of our list of requirements because until recently we had spent a great deal of time on the programming of our previous generation of welding robots. As a supplier, we must produce a great variety of components. For this reason, it is vital that the start-up time of the welding robot is short. Furthermore, accuracy is another important aspect. In the case of offline programming, you must be sure that the virtually programmed part corresponds to what the welding robot actually fabricates. For this reason, we examined the different types of s off-line programming systems. 100% of the programs created in the DTPS offline programming software can be used on the robot, without the need of any corrections. We were, and continue to be so, very impressed by the accuracy of the DTPS software. This was a decisive factor for choosing Panasonic. Does it work? Off course, we use it every day!”
Welding robot integrator Valk Welding installed the welding robot installation including the DTPS software and provided training and support during the commissioning process. The installation exists of a Panasonic TA-1800WG3 welding robot on a track and two workstations located next to each other. The entire system is built on a so-called E-shaped frame construction, which can be installed quickly and can be moved at any moment to a different location without the need for disassembly due to it’s rigid construction.
One station has a single axis positioner and the other is equipped with a drop center. Kalle Meijer, “With this configuration, we were able to weld two different parts at the same time. With the drop centre, the robot has a maximum accessibility in the event of complex products. Because of this reason, we made this year the decision to also expand the other station with a drop center. The reason for this was the increased demand for components in which a positioner with two axes is required. Just like the requirement for more flexibility.”
“In addition to one employee working on the offline programming, there are also operators involved in the process. Furthermore, our welding specialist and production technician are involved in the preparation of the programming and welding process. After the installation of this cell with two drop centres, we were up and running within a single day and were able to transfer the programs from one station to the other by means of copy and paste without the need for a single correction.”
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