Keywords
Citation
(2005), "Modular solution to portal milling provided", Aircraft Engineering and Aerospace Technology, Vol. 77 No. 4. https://doi.org/10.1108/aeat.2005.12777dab.006
Publisher
:Emerald Group Publishing Limited
Copyright © 2005, Emerald Group Publishing Limited
Modular solution to portal milling provided
Modular solution to portal milling provided
Keywords: Machine tools
The modular construction of the Zimmermann FZ 37 portal milling machine enables the specification to be tailored in order to optimise specific machining demands with high orders of geometric accuracy and surface integrity. It is available in four- or five-axis configurations to machine a wide range of materials including aluminium.
Available from Brackley-based StarragHeckert UK, the Zimmermann FZ 37 can be specified with an X-axis from 3,000 to 10,000 mm, a Y-axis between 2,000 and 3,000 mm and the vertical Z-axis between 1,000 and 2,000 mm. A range of spindles with 28 kW, 24,000 revs/min; 40 kW, 24,000 revs/min and 20 kW, 28,000 revs/min are available with a choice of controls supplied by Fidia, Heidenhain or Siemens.
Central to the high credibility machining capability of the FZ 37 is the construction using a floor-mounted, cast iron base with twin fabricated sidewalls and gantry fabrication that separate the workplace from the moving gantry elements that carry the spindle. Each axis is driven by Siemens Simodrive digital system with the option of linear motor or rack and pinion. In each case, Heidenhain glass scales or for axes over 3 m, steel scales are fitted with a compressed air barrier for protection against contamination.
Rapid traverse rates up to 50 m/min can be achieved using the linear motor axis drive option to minimise lost time during positioning or, for instance, when performing a tool change. The optional 15 or 30 position pick-up magazine is sited on the table at the end of the X-axis travel axis.
The 28 and 40 kW milling spindles use ceramic bearings which are mounted in a quick-change cartridge and on the four-axis (3+1) milling head there is an automatic cutter- positioning axis. Meanwhile, the five- axis version of milling head can be swivelled around the A and C driven axes. The machine can be used for both wet or dry cutting cycles.
Details available from: StarragHeckert UK Ltd. Tel: +44 (0)1280 705482; E-mail: sales@starragheckert.co.uk; web site: www.starragheckert.co.uk