Flexible Grinding Machine Offers Low Cycle Times for Efficient Mass Production of Gears
EMAG's G 250 gear generating grinding machine has been especially developed for very low cycle times and for top-quality and efficient mass production of gears.
The G 250 machine also scores with precision, minimum chip-to-chip times, short setup times and reliability for components with a maximum length of 550 millimeters. The machine also has a double table (like the G 160). Loading and unloading operations as well as component measurement are thus performed in cycle time-concurrently.
Additionally, the grinding mandrel can accommodate grinding wheels with different diameters, and the entire design is very rigid. Gear generating grinding and profile grinding take place on the main grinding spindle, so the machine does not have a thermal growth. It can also be retooled for the other process in just a few minutes.
In the field of e-mobility, for example, this approach is used for grinding axle drive wheels. The floor-to-floor time here is only 69 seconds (including entanglement compensation and proportional dressing time), with the actual grinding time comprising only 58 seconds.
The G 250 achieves a comparably high productivity level when machining pinions with a strong crowning in the tooth flank profile and normal crowning in the flank line. The bottom-to-bottom time is 33 and the grinding-only time is 28 seconds. A DIN 3962 quality of 4 is achieved.
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