Minimax Principle for Greater Efficiency: CNC System Solution for Reduced Consumption with Shorter Cycle Times, Bosch Rexroth AG
Release Date: 2009-09-11
New NBV 400 machining center from MAG Hüller Hille lowers unit prices with a controller from Rexroth
he new NBV 400 from MAG Hüller Hille combines a performance automation solution with an innovative energy saving mode for high-output 3- to 5-axis free-form area machining. To this end, the compact milling-lathe-center with vertical spindle integrates CNC system solution IndraMotion MTX from Rexroth. Working in close collaboration with Rexroth, designers re-dimensioned all mechatronics componentry, optimized motion control, and implemented innovative recuperation and standby concepts. The result is substantially improved energy efficiency and short machining times for maximum output and reduced unit costs with minimum outlay.
Main variants of the compact, modular milling center include one with a rigid table for 3-axis machining, a swiveling table for 4-axis machining, a swiveling-rotary table for simultaneous 5-axis milling, and a swiveling-rotary table with 1,000 1/min for 5-axis milling and lathe work. The feed axes reach rapid traverse velocities of 60 m/min. with high dynamism for efficient performance machining.
The NBV 400 features CNC system IndraMotion MTX advanced, the most powerful CNC controller Rexroth offers. It can control up to 64 axes in 12 NC channels and is based on Rexroth's new high-performance industrial PCs with Intel dual-core processors for the open control system. The extremely short CNC and PLC cycles also reduce processing and idle times during free-form area machining, even when complex geometries are involved.
MAG Hüller Hille and Rexroth also implemented numerous measures to considerably improve energy efficiency during daily operation. Minimal energy consumption despite high productivity reduces CO2 emissions and long-term operating costs. Rexroth assisted MAG Hüller Hille as a system partner in the design phase by providing end-to-end mechatronic support. In the process, specialists at both companies fine tuned the mechatronic assemblies to minimize moved masses and configured all drives according to the tasks to be performed by them. The DC links of the IndraDrive servo drives with recovery capability were dimensioned in accordance with realistic machining processes to store and re-use recovered braking energy in the most efficient way possible.
The basic programming of the NBV 400, which is also suited for heavy-duty machining, ensures optimum motion control of all axes. Consistent use of jerk limiters, splines, and grinding movements avoids unnecessary, energy-intense acceleration and deceleration. This does not come at the expense of highly dynamic machining, however. A three-stage standby feature forces drives that are no longer required to gradually power down to a standby mode to keep unproductive energy consumption to a minimum while enabling the drives to quickly reactivate when they are needed again.
The modular design of the NBV covers an entire range of work, from economical 3-axis machining to complex, simultaneous 5-axis milling and lathing of workpieces for tool and mold manufacturers, aviation and aerospace companies, the medical and mechanical engineering sectors, and subcontractors.
| Type: | NORMAL |
| Company: | Bosch Rexroth AG |
| Country: | Germany |
| Url: | http://www.boschrexroth.com/corporate/en/press/press_releases/product_information/brc_en/PI_094_09_en/index.jsp |