▲ Overview of automation systems from Liebherr

A combination of machining centres with pallet handling systems has proven to be a good solution for an automation system for small-scale series down to batch sizes of one. For that reason, Liebherr is now further expanding its product range in the field of automation systems. The new PHS Allround will celebrate its world premiere at this year's EMO.

Fast, powerful and flexible – The new gantry portal LP 100

▲ The LP 100 gantry robot can be built with a wider clearance between uprights.

Liebherr is plugging a gap in the automation system field with the new LP 100 gantry portal, which is particularly suitable for handling smaller and lighter components. Its flexible design makes it dovetail well with inline production concepts, where workpieces have to cover larger distances. 

The benefits of the LP 100

·       Optimum matching of costs and speed (Standard, High-Speed, High-Load)

·       Parallel assembly operations feasible for short lead and delivery times

·       Higher speed for faster cycle times

New generation of gear hobbing machines

The newly developed LC 280 α gear hobbing machine provides Liebherr quality with maximum flexibility and short delivery times. The new development relies on tried-and-tested know-how – at the same time including many improved components.

CBN ranks high for internal gears

For around two years now Liebherr has been using single-, double- and triple-ribbed CBN profile grinding discs – with great success. “Our users are very satisfied with the results”, reports Janus Siegfried, Head of Tool Production and Technology in the Ettlingen plant.

▲ Single-ribbed CBN profile grinding disk from Liebherr

ChamferCut solutions from Liebherr

For years, ChamferCut has been the best and most efficient solution for deburring and chamfering. In addition to the LD 300 C, which was introduced last year, the new stand-alone solution LD 180 C offers new opportunities for introducing the method in existing production lines.

▲ Gear hobbing machine LC 300 DC with integrated ChamferCut unit

▲ The Liebherr solution: simultaneous chamfering

▲ Profitability analysis 

Advantages of the method

·       Very precise chamfer geometry

·       Premium chamfer quality and reproducibility

·       No bulging or material deformation

·       Standard tooth-root chamfering

·       Established process in gear production

·       Very long tool life

·       ChamferCut tools can easily and cost-effectively be re-sharpened approx. 20 times

·       Lower tool costs compared to alternative processes

·       Short amortization period due to low tool costs

·       Application range module 0.8 - 3.5

·       2nd cut omitted when gear hobbing - thus higher tool life quantity with gear hobbing

·       Short setup times

Advantages of the machines

·       User-friendly software

·       Simple adjustment or corrections via CNC axes

·       Simple adaptation at varying flank corrections

·       Dry and wet machining possible

·       Automatic loading with new lift/tilt loader(robot also optional)

·       Flexible automation, e.g. via plastic chain conveyor, palletizing cell

·       Right/Left operation: Control cabinet can be freely positioned

Everythingfrom a single source with Skiving³:
Machine – Tool – Process

Gear skiving according to the Liebherr concept has proved itself. Specialists from Kempten, Ettlingen and Collegno offer competences from a single source in a full-service package.  

Machines overview

LK 300/500

·       Maximum module: 5

·       Maximum gearing diameter: 300 / 500 mm

·       Maximum workpiece outside diameter: 500 / 600

·       Maximum table speed: 3000 / 1500 1 / min

·       Maximum tool diameter: 250 mm

·       Maximum tool speed: 2700 rpm

·       Maximum spindle output: 32 kW

Contact person

Thomas Weber

Marketing

Telephone: +49 831 786-3285

E-Mail: thomas.weber@liebherr.com