Three tool simultaneous cutting on SPRINT50linear turn-mill centre
Article Type: Aerospace technology From: Aircraft Engineering and Aerospace Technology: An International Journal, Volume 80, Issue 5
DMG of Luton has launched the latest Gildemeister SPRINT50 linear slant bed turn-mill centre claiming the latest ultra-modern machine design providing optimised access and improved visibility. With three independent 12 station turrets and each position having a driven tool capability, a major advantage is said to be that either three driven tools or fixed tools can be engaged simultaneously to improve competitiveness on cycle times.
The machine has two 15 kW fully integrated motors driving both main and secondary spindles coupled with high speed 40 m/min rapid traverse rates achieved with an acceleration of 10 m/s2 using the latest linear drive technology. This specification reportedly provides significant increases in productivity for complete machining of a whole range of components from bar up to 51 mm diameter.
Rigidity of the 7.5 ton turn-mill platform makes it ideal for small batch to continuous/unmanned production, a pre-requisite for this slant bed machine design that provides a Y-axis cross-feed as standard to the third turret slide and, as an option, to the two lower turrets. Each of the 36 driven tool positions, has 3.7 kW of power available and 5,000 revs/min with a maximum torque of 18 nm for effective chip removal when milling or drilling. Within the software is the ability to carry out highly precise thread whirling cycles.
The stroke of the Y-axis on the upper turret is ±30 and ±25 mm when applied as an option to the other two lower turrets. Fully integrated main and counter spindles both have 15 kW, 6,000 revs/min motors and full C-axis interpolation or positioning with a pneumatically controlled fast-acting clamping system. A part pick-up device has two pneumatic axes to interface with an outfeed parts conveyor that ensure finished parts are controlled and to prevent damage during unloading.
Control is via Fanuc 300iS which is economically positioned with a large screen display that forms part of the Gildemeister Group’s latest modern design. The new enclosure gives full height access to the working area and excellent vision through a large scratch resistant safety glass panel in the door guard. The control can also be linked to the Gildemeister range of “Power Tools” innovative software such as the DMG Production Manager and DMG Netservice.
The new guarding design has ultra-modern flush surfaces of hard coated reinforced material and brush chrome. Incorporated in the design is DMG’s LIGHT//ne, a highly visible machine operational status indicator that can be seen around the entire machine.
For further details please contact: DMG (UK) Ltd, Tel.: +44 (0)1582 570661,web site: www.gildemeister.com
