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the user interface presented on the Grob machines looks completely different from the others. Until now, operators and setters have been used to the DIN-based HMI Advanced user interface, but the new CNC on the G550 features the Sinumerik Operate animated graphical display. Siemens has integrated a new operation and program- ming structure, with practical functions such as copy and paste that are well known to us- ers from their daily use of PCs. This allowed BMW employees to quickly adapt and master the new Sinumerik user interface in no time at all.


The horizontal design of the Grob fi ve-axis G550 delivers high levels of rigidity, which keeps axial deviations below 10 µm.


Thanks to its excellent usability and intuitive operation


through various technology cycles, measurement cycles, and setting functionality, the new G550 machines can be set up for new batches much more quickly than before. As Heiss explains: “This means our customers are much faster than before. Previously, it might have taken several hours to set up the machine and the workpiece; now it can be done in just a few minutes.”


Quick and Reliable with Remote Maintenance Along with the tools and equipment from the current machines, the German motorcycle manufacturer was able to reuse all its existing programs as well. It took a single em- ployee only two days to upgrade these programs to be com- patible with the latest software, which can be loaded onto the relevant machine as required either over the network or from a USB stick. The modern Windows Explorer-style program manager means that complex programs can be managed either on the CF (Compact Flash) card or directly on the CNC. If problems arise while the machine is operational, BMW


production engineer Taner Ögretmen and his colleagues use the network-based remote maintenance functionality provided by Grob. This has rarely been required so far—but when it has, it proved to be extremely smooth and effi cient, stresses Ögretmen. Grob can also perform minor optimiza-


tions together with Siemens using the teleservice. This is usually done automatically and without any disruption to ongoing production. The Sinumerik-controlled Grob machines have met every expectation in full, which is why BMW has already ordered an additional four G550s.


Programming and Operation Using Sinumerik Operate Sinumerik Operate provides several different program- ming methods to let users program and set the workpieces: ShopMill graphical user interface, programGUIDE for G- code with cycle support, and pure DIN/ISO programming. If the user decides to use ShopMill, he or she receives an animated graphical work-step programming environment for simple dialog programming. The interface is designed to be clear and self-explanatory, so that even operators with no programming experience can learn the basics in no time at all. To write programs in programGUIDE, the operator will need some knowledge of G-code. The highlights here include new cycle support functionality and animated ele- ments that can be used to represent the cycle graphically. Tooltip support is also provided.


Edited by Yearbook Editor James D. Sawyer from information provided by Siemens Industry Inc.


41 — Motorized Vehicle Manufacturing 2016


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