CHIRON tests machining with the digital twin at the Siemens booth

AMB 2016, Hall 4, Booth C12

(PresseBox) ( Stuttgart, )
- Sinumerik 840D sl for FZ12 MT machining center
- Programs and complex motion sequences are tested in advance using the digital twin on the virtual model
- High level of process reliability and availability thanks to digitalization of the processes

A key step on the way to Industry 4.0 is the ever closer integration of product development and production processes. For many years now Siemens has therefore been focusing its development work on simulation, virtual machines and integration into the factory’s IT system, especially in the sphere of CNC manufacturing. The trend towards increased customization of products, that is smaller batch sizes, makes increased demands on the entire CAD/CAM/CNC process, with the main focus of attention on the error-free conversion of CAD/CAM information into a CNC program. Germany-based CHIRON has demonstrated with its Sinumerik-controlled machining center FZ12 MT how digital concepts have proved their worth in practical applications today. From September 13 – 17, visitors to the AMB will be able to see a CHIRON machine and its virtual image together with its simulations and test runs in action at the Siemens booth at the AMB.

With the development of its machining center, CHIRON has met the key demand of users for several technologies to be combined to perform multiple functions. The machine is both a fully-fledged five-axis milling and machining center and also a fully-fledged slant-bed turning and machining center. With its swivel head, turning spindle, tool revolver and opposed spindle it enables workpieces to be milled and turned simultaneously in one machine. Workpiece flow can be completely automated by the addition of a bar loader or a handling robot in combination with a workpiece storage.

In the machines equipped with Siemens control technology, CHIRON uses the virtual NC kernel within the machine simulation. It uses the same language code as the CNC as its control system is identical to the Sinumerik control system, creating an exact virtual image - a digital twin - for simulations and test runs. All operation sequences in the corresponding machine environment can be depicted in real time and controlled by the original Sinumerik 840D sl software using the virtual model. In this way sequence and program errors, and machine and tool collisions can be identified when executing CNC programs, and the motion behavior can be assessed and the program runtime determined. This gives a high degree of process reliability for the subsequent machining process on the actual machine and minimizes the set-up time, especially for small batch sizes.

An integrated CAD/CAM/CNC solution is required in order to create a virtual image of the actual production process that is as accurate as possible. With its ProcessLine, CHIRON incorporates the virtual part of the process chain into its machines and provides a virtual image of the complete machine geometry. The Siemens programs NX CAD and NX CAM form the basis of the integrated CAD/CAM/CNC process, and Sinumerik 840D implements the multitasking in the machining center across all systems.

There are also crucial advantages to be gained when operating the actual machine by focusing on digitalizing the processes at the outset. The digital twin can also be used in the office to devise optimization strategies for the production process or to carry out analyses that cannot be made on the actual machine during production. This ensures that productivity and availability of the machine is maintained at a high level, resulting in highly productive, collision-free CNC programs within this process chain which have error-free syntax and which ensure high process reliability. The CNC program test in production planning is therefore a one-to-one image of the operation of the machine.

For further information on Siemens at the AMB 2016, please see

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