Liebherr's LGG 180 machine for profile and generating grinding is designed to provide short grinding times with consistent high large-scale production quality due to its one-table design.
"The advantage to the one-table solution is higher quality throughout the entire production. Every machined part is manufactured under the same conditions for the highest reproducibility," said Dr.-Ing. Andreas Mehr, Grinding and Shaping Technology Development and Consultancy at Liebherr-Verzahntechnik GmbH. "A key argument in favor of the one-table solution is the statistical capability and reliability in continuously producing controlled micro-range finish quality."
The grinding head allows for rotation speeds up to 10,000 RPM and has spindle power of 35 kW to enable high cutting speeds and high feed rates. The grinding machine features the abrasive Cubitron II.
"The machine will enable undulations to be applied specifically to gear wheel flanks for noise optimization purposes for the first time," said a company spokesperson. "The ability to produce sub-micro range waviness cost-effectively gives designers a whole new range of optimization options.
"The LGG machine delivers fast processing combined with the set-up advantages of a one-table solution. In addition, the machines for both 180 mm and 280 mm gears have the same compact external dimensions, facilitating installation within production lines.
"Vehicle manufacturers can thus develop a complete production line, in which all gearing components for a passenger vehicle transmission can be ground: planetary and sun gears, bore-type gears, as well as drive and pinion shafts with lengths up to 500 mm.
"In order to minimize any thermal impacts, the machine bed is of a thermally stable material. The core of the machine is the newly developed grinding head. Conventional solutions have been chosen here in several areas in order to be prepared for yet higher quality requirements."
For more information contact:
Liebherr Automation Systems Co.
1465 Woodland Drive
Saline, MI 48176-1259
734-429-7225
www.liebherr.us