075-12 Lohr, 2012-10-23

Automation solution for punching and nibbling machines

The fastest automation solution for punching and nibbling machines

With the fastest automation solution for punching and nibbling machines available on the market today, users can achieve maximum stroke speeds of up to 1,600 strokes/min in typical nibble mode.

Users can achieve shorter time to market, simpler machine concept scaling, and a productivity increase of up to 20% with the complete automation solution for punching and nibbling machines from Rexroth. The CNC system solution IndraMotion MTX seamlessly works together with the Rexroth electrohydraulic punching and nibbling machine. The interface for data exchange between the control unit and the nibble axis, which comes preprogrammed ex works, reduces programming and commissioning expenditure by approximately 50%.

In a current punching machine benchmark press, the Rexroth complete solution increased the previously-achieved stroke rate by around 30%. With a sheet feed of 1 mm, a stroke of 3 mm, and a sheet thickness of 1 mm, the Rexroth solution increases productivity from around 700 to about 930 strokes per minute. That allows for a maximum stroke rate of up to 1,600 strokes/min in typical nibble mode, rendering it the fastest automation for punching and nibbling machines available on the market today.

The IndraMotion MTX CNC system solution used is universally based on open standards like the sercos automation bus, IEC 61131-3, and NC programming in G-code. That allows users to program sequences themselves, fast and efficiently. In four MTX power stages, the system family covers the spectrum of all customer wants and needs. All versions use the same software core and the same engineering environment. That makes it possible for users to reuse programs and parts of programs in other machine sizes. Predefined technology features for punching, nibbling, soft punching, notching, and conversions further reduce time to market. With CNC cycle times of 0.25 ms and faster SPS command processing, the IndraMotion MTX creates the prerequisites for the highest level of productivity.

Via a preprogrammed interface, the CNC system solution controls the electrohydraulic nibble axes from Rexroth. These ready-to-install modules with a power unit, cylinder, and its own Motion Control decentrally control the punching head movements. Users can choose from three versions: standard, advanced, and high performance, with 200 kN and 300 kN nominal force. They each work in typical frequencies between 600 and 1600 with a 4 mm stroke. In graving mode, the stroke rate increases to up to 4,000 strokes per minute.

The Motion Control HNC100-3X, which has been optimized for hydraulic drives, is responsible for the decentralized position control. Comprehensive function libraries replace complex programming with simple parameterization. At the same time, its openness offers a high degree of freedom for realizing individual solutions.

In initial applications, the complete solution has shown a savings potential for programming and commissioning of around 50% – the reason being that all interfaces are coordinated and the preprogrammed features need only be parameterized. That reduces time to market. The predefined technological features ensure a maximum stroke rate with an optimal motion sequence. In operations, the transparent architecture facilitates diagnoses and simplifies product conversions.

Bosch Rexroth AG is one of the world’s leading specialists in the field of drive and control technologies. Under the Rexroth brand name, the company supplies more than 500,000 customers with tailored solutions for driving, controlling, and moving. Bosch Rexroth is a partner for Mobile Applications, Machinery Applications and Engineering, Factory Automation and Renewable Energies. The company provides customized solutions tailored to the needs and specifications of each individual market. As The Drive & Control Company, Bosch Rexroth develops, produces, and sells components and systems in over 80 countries. As part of the Bosch Group, Bosch Rexroth and its 38,400 associates generated approximately 6.4 billion euros in revenue in 2011.

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The Bosch Group is a leading global supplier of technology and services. According to preliminary figures, more than 300,000 associates generated sales of 51.5 billion euros in the areas of automotive and industrial technology, consumer goods, and building technology in fiscal 2011. The Bosch Group comprises Robert Bosch GmbH and its more than 350 subsidiaries and regional companies in some 60 countries. If its sales and service partners are included, then Bosch is represented in roughly 150 countries. This worldwide development, manufacturing, and sales network is the foundation for further growth. Bosch spent more than 4 billion euros for research and development in 2011, and applied for over 4,100 patents worldwide. With all its products and services, Bosch enhances the quality of life by providing solutions which are both innovative and beneficial.

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Susanne Herzlieb
Maria-Theresien-Straße 23
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