Five-Axis Tool Grinder Offers Large Grind Zone, Small Footprint
IMTS 2018: Star SU’s NXT tool grinder is designed for large-machine capabilities with a small footprint.
Star SU’s NXT tool grinder is designed to provide large-machine capabilities in a small footprint. The five-axis CNC tool grinder has few moving parts, a large grind zone, the ability to run small- and large-diameter wheels, easily configurable options, and a modular design.
The grinder features a 28-kW synchronous spindle that runs at 20,000 rpm, and it holds tools ranging to 250 mm. The grinder’s linear and rotary torque motor technology is said to eliminate backlash, friction effects and drive vibration. FANUC robot automation, gripper assembly ranging from 3 to 38 mm and NumrotoPlus grinding software are included.
Because of the high material removal rate creep-feed grinding can deliver in challenging materials, grinding might not be just the last step in the process—it might be the process.
Roughing and finishing on a single machine, using a single setup, has appeal for most shops. The advantages in time savings and accuracy are obvious. Eliminating the transport of workpieces between machines, as well as the setup for those secondary operations, is a boon for throughput. Critical features that need to maintain dimensional relationships can be much more reliably produced if machined complete in one clamping.
No other process can do what creep-feed grinding can do. Recent tests show even more can be gained by optimizing every element of a creep-feed system.