COMPLETE MACHINING OF COMPLEX PARTS IN ONE SETUP

The compact DZ 12K S Magnum 5-axis double-spindle machining center uses a 2-axis tilt rotary table for milling and turning complex workpieces in one set-up to reduce total machining time and lower costs per piece with less floor space and personnel requirements.

The DZ 12K S Magnum 5-axis double-spindle machining center from Chiron America Inc. (Charlotte, NC) uses a 2-axis tilt rotary table for milling and turning complex workpieces in one set-up. The possibility of complete machining in a single set-up reduces the total machining time and the costs per piece, simplifies material flows and allows customers to manufacture with less staff.

Compared to single-spindle solution, the DZ 12K S Magnum doubles productivity while saving up to 30 percent in energy costs at the same time. Compared to multiple-stage manufacturing strategies, a significant advantage of 5-axis machining lies in the improved surface quality and geometric accuracy. Direct path measurement systems in all axes are standard equipment in all Chiron 5-axis machining centers.

The initiative for developing the DZ 12K S Magnum came from customers within the scope of turnkey projects which demanded a compact solution that stands for top productivity with minimum floor space requirement, and, as an overall system, works reliably and energy-efficiently.

Dr. Dirk Prust, the managing director of sales, technology and service of Chiron-Werke GmbH & Co KG (Tuttlingen, Germany) says, “The trend toward more complex series workpieces is clearly continuing. With 5-axis machining, higher precision is achievable since reclamping isn’t necessary. To meet the productivity demands of such series workpieces, we have implemented these requirements in a cost-effective double-spindle machining center.”

The DZ 12K S Magnum has the proven advantages of lower floor space and personnel requirements, along with the reduction of the cost per part by reducing the total machining time. Another feature of the new machining center is the reinforced tool taper to HSK-A 63, which is available for the entire Chiron 12 series. The 2-axis tilt rotary table, developed and produced in-house, stands for high precision and extraordinary stability. Top surface quality can be achieved by using the reinforced tool taper in conjunction with a powerful spindle with a maximum speed of 24,000 rpm.

The rotary axes, driven by torque motors, allow simultaneous turning operations at 1000 rpm – ideal for complex complete machining. The X, Y and Z travel is 550 mm, 400 mm and 360 mm, allowing sufficient room for positioning and machining complex workpieces made of steel, cast iron, aluminium or titanium.

The axis accelerations are 10 m/s², 15 m/s² and 15 m/s², and the rapid feeds in all linear axes reach max. 75 m/min. The machine is also prepared for robot automation with the cost-effective standard module FlexCell Uno.

The speed of the A/C axis is 50/200 rpm, the speed of the turning (C axis) is up to 1,000 rpm. Tool change time is approximately .9 seconds and chip-to-chip time is approximately 2.4 seconds. The NC swivel range is from ±120 deg to ±360 deg. Milling capacity in St 60 is 2 x 150 cm³/min, drilling capacity in St 60 is 2 x Ø 25 mm and tapping capacity is 2 x M 20. info@chironamerica.com, www.chironamerica.com