Magazine 2020
Magazine 2020
Clamping units for gears with short delivery times at low costs – due to the high level of individualization of clamping devices, these demands were often diffi cult to reconcile. That’s now a thing of the past. The segment clamping arbor SECLA from Liebherr is an innovative, inexpensive standard solution with short delivery times for a maximum application range in gear manufacturing machining.
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In August 2019, trainees Fabian Altenried and Julia Fetzer participated in the Liebherr Summer Program at Liebherr Gear Technology Inc. / Liebherr Automation Systems Co. (LGT / LAU) in Saline, near Detroit. There, they ran the PLC programming course for pupils of the robotics course from the local high school, which was offered for the first time, and got to know the work routine at the Liebherr site. Fabian reports on his experience here:
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Liebherr presents the new series of generating and profile grinding machines for hard machining of external and internal gears on workpieces with diameters of up to 500 millimeters. The LGG series follows the successful Liebherr LCS 300 to 500 series. With an impressive range of added features, they offer more flexibility and grinding performance with a significantly reduced footprint.
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Gear skiving is over 100 years old and has recently been experiencing a renaissance as a flexible and economical alternative to other gear cutting methods. However, this complex process frequently presents great challenges to users. In addition to Skiving3, a “complete package” consisting of machine, tool and technology, Liebherr now also offers skiving tools for suppliers and contract gear manufacturers – and the appropriate consultation, if desired.
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Karl-Heinz Klöble is responsible for putting large gear cutting machines into service in China. We spoke to him about his experiences there and what fascinates and motivates him in his unusual job – and why he’s too busy to retire yet.
Liebherr is embracing technological change towards alternative drives and has developed a modular automation system solution for the assembly of battery packs for electric cars – from small batch manufacturing to fully automated mass production. Advantages: Liebherr automation is system-compatible and offers process reliability, fast cycle times and flexibility.
When founding the Industrial Services for Gear Technology and Automation Systems department in 2018, Liebherr already began rolling out the topic of services again from a user perspective. By now, customers can choose the service that fits their individual requirements from a total of five different service packages.
Close to production, with high cleanliness and air conditioning standards: The two new measuring rooms of Liebherr-Verzahntechnik GmbH at the Ettlingen site are used for quality control during the production of Liebherr gear cutting tools and for contract manufacturing.
The machining of gears with interfering contours for the aerospace industry places the highest demands on the grinding tool and often cannot be carried out with standard grinding heads due to the small tool diameters. Liebherr has developed an auxiliary spindle for these applications which can be retrofitted. This enables the production of challenging aerospace components on existing LGG gear grinding machines.
Liebherr opened a new test hall for automation systems in Kempten. Prototype solutions are tested and the systems are “put to the test” here. This new facility allows the customers to experience the tests “live” and gives them the opportunity to conduct virtual tests themselves.
Liebherr presents the latest member in the PHS Allround family, the PHS 800 Allround. It has a narrower design than the PHS 1500 Allround, which makes it ideal for automated loading of smaller machine tools while retaining the basic principle of modular design and universal applicability and expandability.